src/editor.c

   1 // ============================================================================
   2 // Rocks'n'Diamonds - McDuffin Strikes Back!
   3 // ----------------------------------------------------------------------------
   4 // (c) 1995-2014 by Artsoft Entertainment
   5 //                  Holger Schemel
   6 //                  info@artsoft.org
   7 //                  https://www.artsoft.org/
   8 // ----------------------------------------------------------------------------
   9 // editor.c
  10 // ============================================================================
  11
  12 #include <math.h>
  13
  14 #include "libgame/libgame.h"
  15
  16 #include "editor.h"
  17 #include "screens.h"
  18 #include "tools.h"
  19 #include "files.h"
  20 #include "game.h"
  21 #include "init.h"
  22 #include "tape.h"
  23
  24
  25 #define INFOTEXT_UNKNOWN_ELEMENT        "unknown"
  26
  27
  28 // ----------------------------------------------------------------------------
  29 // screen and artwork graphic pixel position definitions
  30 // ----------------------------------------------------------------------------
  31
  32 // values for the control window
  33 #define ED_CTRL1_BUTTONS_HORIZ          4       // toolbox
  34 #define ED_CTRL1_BUTTONS_VERT           4
  35 #define ED_CTRL2_BUTTONS_HORIZ          3       // level
  36 #define ED_CTRL2_BUTTONS_VERT           2
  37 #define ED_CTRL3_BUTTONS_HORIZ          3       // CE and GE
  38 #define ED_CTRL3_BUTTONS_VERT           1
  39 #define ED_CTRL4_BUTTONS_HORIZ          2       // CE and GE
  40 #define ED_CTRL4_BUTTONS_VERT           1
  41 #define ED_CTRL5_BUTTONS_HORIZ          1       // properties
  42 #define ED_CTRL5_BUTTONS_VERT           1
  43 #define ED_CTRL6_BUTTONS_HORIZ          3       // properties
  44 #define ED_CTRL6_BUTTONS_VERT           1
  45 #define ED_CTRL7_BUTTONS_HORIZ          1       // palette
  46 #define ED_CTRL7_BUTTONS_VERT           1
  47
  48 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  49 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  50 #define ED_NUM_CTRL3_BUTTONS   (ED_CTRL3_BUTTONS_HORIZ * ED_CTRL3_BUTTONS_VERT)
  51 #define ED_NUM_CTRL4_BUTTONS   (ED_CTRL4_BUTTONS_HORIZ * ED_CTRL4_BUTTONS_VERT)
  52 #define ED_NUM_CTRL5_BUTTONS   (ED_CTRL5_BUTTONS_HORIZ * ED_CTRL5_BUTTONS_VERT)
  53 #define ED_NUM_CTRL6_BUTTONS   (ED_CTRL6_BUTTONS_HORIZ * ED_CTRL6_BUTTONS_VERT)
  54 #define ED_NUM_CTRL7_BUTTONS   (ED_CTRL7_BUTTONS_HORIZ * ED_CTRL7_BUTTONS_VERT)
  55 #define ED_NUM_CTRL1_2_BUTTONS (ED_NUM_CTRL1_BUTTONS   + ED_NUM_CTRL2_BUTTONS)
  56 #define ED_NUM_CTRL1_3_BUTTONS (ED_NUM_CTRL1_2_BUTTONS + ED_NUM_CTRL3_BUTTONS)
  57 #define ED_NUM_CTRL1_4_BUTTONS (ED_NUM_CTRL1_3_BUTTONS + ED_NUM_CTRL4_BUTTONS)
  58 #define ED_NUM_CTRL1_5_BUTTONS (ED_NUM_CTRL1_4_BUTTONS + ED_NUM_CTRL5_BUTTONS)
  59 #define ED_NUM_CTRL1_6_BUTTONS (ED_NUM_CTRL1_5_BUTTONS + ED_NUM_CTRL6_BUTTONS)
  60 #define ED_NUM_CTRL1_7_BUTTONS (ED_NUM_CTRL1_6_BUTTONS + ED_NUM_CTRL7_BUTTONS)
  61 #define ED_NUM_CTRL_BUTTONS    ED_NUM_CTRL1_7_BUTTONS
  62
  63 // values for the element list
  64 #define ED_ELEMENTLIST_XPOS             (editor.palette.x)
  65 #define ED_ELEMENTLIST_YPOS             (editor.palette.y)
  66 #define ED_ELEMENTLIST_XSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].width)
  67 #define ED_ELEMENTLIST_YSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].height)
  68 #define ED_ELEMENTLIST_COLS             MAX(1, editor.palette.cols)
  69 #define ED_ELEMENTLIST_ROWS             MAX(1, editor.palette.rows)
  70 #define ED_ELEMENTLIST_BUTTONS_HORIZ    (ED_ELEMENTLIST_COLS)
  71 #define ED_ELEMENTLIST_BUTTONS_VERT     (ED_ELEMENTLIST_ROWS)
  72 #define ED_NUM_ELEMENTLIST_BUTTONS      (ED_ELEMENTLIST_BUTTONS_HORIZ * \
  73                                          ED_ELEMENTLIST_BUTTONS_VERT)
  74
  75 // standard distances
  76 #define ED_GADGET_NORMAL_DISTANCE       (editor.gadget.normal_spacing)
  77 #define ED_GADGET_SMALL_DISTANCE        (editor.gadget.small_spacing)
  78 #define ED_GADGET_TINY_DISTANCE         (editor.gadget.tiny_spacing)
  79 #define ED_GADGET_LINE_DISTANCE         (editor.gadget.line_spacing)
  80 #define ED_GADGET_TEXT_DISTANCE         (editor.gadget.text_spacing)
  81 #define ED_TAB_BAR_HEIGHT               (editor.gadget.separator_line.height)
  82 #define ED_DRAWINGAREA_TEXT_DISTANCE    (ED_GADGET_TEXT_DISTANCE +      \
  83                                          ED_DRAWINGAREA_BORDER_SIZE)
  84 #define ED_GADGET_SPACE_DISTANCE        (getFontWidth(FONT_TEXT_1))
  85
  86 // values for drawingarea gadgets
  87 #define IMG_BORDER_1                    IMG_EDITOR_ELEMENT_BORDER
  88 #define IMG_BORDER_2                    IMG_EDITOR_ELEMENT_BORDER_INPUT
  89 #define ED_ELEMENT_BORDER               (graphic_info[IMG_BORDER_1].border_size)
  90 #define ED_DRAWINGAREA_BORDER_SIZE      (graphic_info[IMG_BORDER_2].border_size)
  91 #define ED_DRAWINGAREA_TILE_SIZE        (editor.drawingarea.tile_size)
  92
  93 // values for checkbutton gadgets
  94 #define ED_CHECKBUTTON_XSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].width)
  95 #define ED_CHECKBUTTON_YSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].height)
  96
  97 #define ED_TABBUTTON_XSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].width)
  98 #define ED_TABBUTTON_YSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].height)
  99
 100 #define ED_SETTINGS_LEVEL_TABS_X        (editor.settings.tabs.x)
 101 #define ED_SETTINGS_LEVEL_TABS_Y        (editor.settings.tabs.y)
 102 #define ED_SETTINGS_ELEMENT_TABS_X      (editor.settings.tabs.x)
 103 #define ED_SETTINGS_ELEMENT_TABS_Y      (editor.settings.tabs.y +       \
 104                                          editor.settings.tabs.yoffset2)
 105
 106 #define ED_SETTINGS_TABS_XOFFSET        (editor.settings.tabs.draw_xoffset)
 107 #define ED_SETTINGS_TABS_YOFFSET        (editor.settings.tabs.draw_yoffset)
 108
 109 #define ED_LEVEL_TABS_XSTART            (ED_SETTINGS_LEVEL_TABS_X)
 110 #define ED_LEVEL_TABS_YSTART            (ED_SETTINGS_LEVEL_TABS_Y)
 111 #define ED_LEVEL_SETTINGS_XSTART        (ED_SETTINGS_LEVEL_TABS_X +     \
 112                                          ED_SETTINGS_TABS_XOFFSET)
 113 #define ED_LEVEL_SETTINGS_YSTART        (ED_SETTINGS_LEVEL_TABS_Y +     \
 114                                          ED_TABBUTTON_YSIZE +           \
 115                                          ED_GADGET_TINY_DISTANCE +      \
 116                                          ED_TAB_BAR_HEIGHT +            \
 117                                          ED_SETTINGS_TABS_YOFFSET +     \
 118                                          getFontHeight(FONT_TEXT_1) +   \
 119                                          ED_GADGET_TEXT_DISTANCE)
 120 #define ED_ELEMENT_TABS_XSTART          (ED_SETTINGS_ELEMENT_TABS_X)
 121 #define ED_ELEMENT_TABS_YSTART          (ED_SETTINGS_ELEMENT_TABS_Y)
 122 #define ED_ELEMENT_SETTINGS_XSTART      (ED_SETTINGS_ELEMENT_TABS_X +   \
 123                                          ED_SETTINGS_TABS_XOFFSET)
 124 #define ED_ELEMENT_SETTINGS_YSTART      (ED_SETTINGS_ELEMENT_TABS_Y +   \
 125                                          ED_TABBUTTON_YSIZE +           \
 126                                          ED_GADGET_TINY_DISTANCE +      \
 127                                          ED_TAB_BAR_HEIGHT +            \
 128                                          ED_SETTINGS_TABS_YOFFSET)
 129
 130 #define ED_SETTINGS_XOFFSET             (ED_CHECKBUTTON_XSIZE +         \
 131                                          ED_GADGET_TEXT_DISTANCE)
 132 #define ED_SETTINGS_YOFFSET             (ED_CHECKBUTTON_YSIZE +         \
 133                                          ED_GADGET_LINE_DISTANCE)
 134
 135 #define ED_POS_RANGE                    (10000)
 136 #define ED_POS_LEVEL_TABS_FIRST         (1 * ED_POS_RANGE)
 137 #define ED_POS_LEVEL_TABS_LAST          (2 * ED_POS_RANGE - 1)
 138 #define ED_POS_LEVEL_SETTINGS_FIRST     (2 * ED_POS_RANGE)
 139 #define ED_POS_LEVEL_SETTINGS_LAST      (3 * ED_POS_RANGE - 1)
 140 #define ED_POS_ELEMENT_TABS_FIRST       (3 * ED_POS_RANGE)
 141 #define ED_POS_ELEMENT_TABS_LAST        (4 * ED_POS_RANGE - 1)
 142 #define ED_POS_ELEMENT_SETTINGS_FIRST   (4 * ED_POS_RANGE)
 143 #define ED_POS_ELEMENT_SETTINGS_LAST    (5 * ED_POS_RANGE - 1)
 144
 145 #define ED_LEVEL_TABS_XPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 146 #define ED_LEVEL_TABS_YPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 147
 148 #define ED_LEVEL_SETTINGS_XPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 149 #define ED_LEVEL_SETTINGS_YPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 150
 151 #define ED_ELEMENT_TABS_XPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 152 #define ED_ELEMENT_TABS_YPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 153
 154 #define ED_ELEMENT_SETTINGS_XPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 155 #define ED_ELEMENT_SETTINGS_YPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 156
 157 #define IS_POS_LEVEL_TABS(n)          ((n) >= ED_POS_LEVEL_TABS_FIRST && \
 158                                        (n) <= ED_POS_LEVEL_TABS_LAST)
 159 #define IS_POS_LEVEL_SETTINGS(n)      ((n) >= ED_POS_LEVEL_SETTINGS_FIRST && \
 160                                        (n) <= ED_POS_LEVEL_SETTINGS_LAST)
 161 #define IS_POS_ELEMENT_TABS(n)        ((n) >= ED_POS_ELEMENT_TABS_FIRST && \
 162                                        (n) <= ED_POS_ELEMENT_TABS_LAST)
 163 #define IS_POS_ELEMENT_SETTINGS(n)    ((n) >= ED_POS_ELEMENT_SETTINGS_FIRST && \
 164                                        (n) <= ED_POS_ELEMENT_SETTINGS_LAST)
 165
 166 #define ED_LEVEL_TABS_LINE(n)           ((n) - ED_POS_LEVEL_TABS_FIRST)
 167 #define ED_LEVEL_SETTINGS_LINE(n)       ((n) - ED_POS_LEVEL_SETTINGS_FIRST)
 168 #define ED_ELEMENT_TABS_LINE(n)         ((n) - ED_POS_ELEMENT_TABS_FIRST)
 169 #define ED_ELEMENT_SETTINGS_LINE(n)     ((n) - ED_POS_ELEMENT_SETTINGS_FIRST)
 170
 171 #define ED_LEVEL_TABS_X(n)              (ED_LEVEL_TABS_XSTART + \
 172                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 173 #define ED_LEVEL_TABS_Y(n)              (ED_LEVEL_TABS_YSTART + \
 174                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 175
 176 #define ED_LEVEL_SETTINGS_X(n)          (ED_LEVEL_SETTINGS_XSTART +     \
 177                                          (n) * ED_SETTINGS_XOFFSET)
 178 #define ED_LEVEL_SETTINGS_Y(n)          (ED_LEVEL_SETTINGS_YSTART +     \
 179                                          (n) * ED_SETTINGS_YOFFSET)
 180
 181 #define ED_ELEMENT_TABS_X(n)            (ED_ELEMENT_TABS_XSTART +       \
 182                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 183 #define ED_ELEMENT_TABS_Y(n)            (ED_ELEMENT_TABS_YSTART +       \
 184                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 185
 186 #define ED_ELEMENT_SETTINGS_X(n)        (ED_ELEMENT_SETTINGS_XSTART +   \
 187                                          (n) * ED_SETTINGS_XOFFSET)
 188 #define ED_ELEMENT_SETTINGS_Y(n)        (ED_ELEMENT_SETTINGS_YSTART +   \
 189                                          (n) * ED_SETTINGS_YOFFSET)
 190
 191 #define ED_POS_TO_LEVEL_TABS_X(n)       \
 192   (ED_LEVEL_TABS_X(ED_LEVEL_TABS_LINE(n)))
 193 #define ED_POS_TO_LEVEL_TABS_Y(n)       \
 194   (ED_LEVEL_TABS_Y(ED_LEVEL_TABS_LINE(n)))
 195
 196 #define ED_POS_TO_LEVEL_SETTINGS_X(n)   \
 197   (ED_LEVEL_SETTINGS_X(ED_LEVEL_SETTINGS_LINE(n)))
 198 #define ED_POS_TO_LEVEL_SETTINGS_Y(n)   \
 199   (ED_LEVEL_SETTINGS_Y(ED_LEVEL_SETTINGS_LINE(n)))
 200
 201 #define ED_POS_TO_ELEMENT_TABS_X(n)     \
 202   (ED_ELEMENT_TABS_X(ED_ELEMENT_TABS_LINE(n)))
 203 #define ED_POS_TO_ELEMENT_TABS_Y(n)     \
 204   (ED_ELEMENT_TABS_Y(ED_ELEMENT_TABS_LINE(n)))
 205
 206 #define ED_POS_TO_ELEMENT_SETTINGS_X(n) \
 207   (ED_ELEMENT_SETTINGS_X(ED_ELEMENT_SETTINGS_LINE(n)))
 208 #define ED_POS_TO_ELEMENT_SETTINGS_Y(n) \
 209   (ED_ELEMENT_SETTINGS_Y(ED_ELEMENT_SETTINGS_LINE(n)))
 210
 211 #define ED_SETTINGS_X(n)                (IS_POS_LEVEL_TABS(n) ? \
 212                                          ED_POS_TO_LEVEL_TABS_X(n) : \
 213                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 214                                          ED_POS_TO_LEVEL_SETTINGS_X(n) : \
 215                                          IS_POS_ELEMENT_TABS(n) ?       \
 216                                          ED_POS_TO_ELEMENT_TABS_X(n) : \
 217                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 218                                          ED_POS_TO_ELEMENT_SETTINGS_X(n) : (n))
 219 #define ED_SETTINGS_Y(n)                (IS_POS_LEVEL_TABS(n) ? \
 220                                          ED_POS_TO_LEVEL_TABS_Y(n) : \
 221                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 222                                          ED_POS_TO_LEVEL_SETTINGS_Y(n) : \
 223                                          IS_POS_ELEMENT_TABS(n) ?       \
 224                                          ED_POS_TO_ELEMENT_TABS_Y(n) : \
 225                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 226                                          ED_POS_TO_ELEMENT_SETTINGS_Y(n) : (n))
 227
 228 #define ED_SETTINGS_XOFF(n)             (5 * ((n) % 4) *                \
 229                                          ED_DRAWINGAREA_TILE_SIZE)
 230 #define ED_SETTINGS_YOFF(n)             (5 * ((n) / 4) *                \
 231                                          ED_DRAWINGAREA_TILE_SIZE)
 232
 233 #define ED_AREA_XOFFSET_1(n)            ((n) != 0 ?                     \
 234                                          ED_DRAWINGAREA_BORDER_SIZE : 0)
 235 #define ED_AREA_YOFFSET_1(n)            ((n) != 0 ?                     \
 236                                          (ED_CHECKBUTTON_YSIZE -        \
 237                                           ED_DRAWINGAREA_TILE_SIZE) / 2 : 0)
 238
 239 #define ED_AREA_XOFFSET_2(n)      (0)
 240 #define ED_AREA_YOFFSET_2(n)      ((n) == 3 ?                   \
 241                                    ((n) - 1) * ED_DRAWINGAREA_TILE_SIZE / 2 : 0)
 242
 243 #define ED_AREA_SETTINGS_X(i)      (ED_SETTINGS_X((i).x) +              \
 244                                     ED_SETTINGS_XOFF((i).xoffset) +     \
 245                                     ED_AREA_XOFFSET_1((i).x) -          \
 246                                     ED_AREA_XOFFSET_2((i).area_xsize))
 247 #define ED_AREA_SETTINGS_Y(i)      (ED_SETTINGS_Y((i).y) +              \
 248                                     ED_SETTINGS_YOFF((i).yoffset) +     \
 249                                     ED_AREA_YOFFSET_1((i).y) -          \
 250                                     ED_AREA_YOFFSET_2((i).area_ysize))
 251
 252 // values for element content drawing areas
 253 #define ED_AREA_1X1_LSETTINGS_XPOS(n)   ED_LEVEL_SETTINGS_XPOS(n)
 254 #define ED_AREA_1X1_LSETTINGS_YPOS(n)   ED_LEVEL_SETTINGS_YPOS(n)
 255 #define ED_AREA_1X1_LSETTINGS_XOFF      (0)
 256 #define ED_AREA_1X1_LSETTINGS_YOFF      (0)
 257
 258 #define ED_AREA_1X1_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 259 #define ED_AREA_1X1_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 260 #define ED_AREA_1X1_SETTINGS_XOFF       (0)
 261 #define ED_AREA_1X1_SETTINGS_YOFF       (0)
 262
 263 #define ED_AREA_3X3_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 264 #define ED_AREA_3X3_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 265 #define ED_AREA_3X3_SETTINGS_XOFF       (0)
 266 #define ED_AREA_3X3_SETTINGS_YOFF       (0)
 267
 268 // element content
 269 #define ED_AREA_ELEMENT_CONTENT_XOFF(n) (n)
 270 #define ED_AREA_ELEMENT_CONTENT_YOFF(n) (n)
 271
 272 // yamyam content
 273 #define ED_XPOS_YAM                     0
 274 #define ED_YPOS_YAM                     5
 275 #define ED_AREA_YAMYAM_CONTENT_XPOS     ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_YAM)
 276 #define ED_AREA_YAMYAM_CONTENT_YPOS     ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_YAM)
 277 #define ED_AREA_YAMYAM_CONTENT_XOFF(n)  ED_AREA_ELEMENT_CONTENT_XOFF(n)
 278 #define ED_AREA_YAMYAM_CONTENT_YOFF(n)  ED_AREA_ELEMENT_CONTENT_YOFF(n)
 279 #define ED_AREA_YAMYAM_CONTENT_X(n)     (ED_ELEMENT_SETTINGS_X(ED_XPOS_YAM) + \
 280                                          ED_SETTINGS_XOFF(n))
 281 #define ED_AREA_YAMYAM_CONTENT_Y(n)     (ED_ELEMENT_SETTINGS_Y(ED_YPOS_YAM) + \
 282                                          ED_SETTINGS_YOFF(n) +          \
 283                                          ED_AREA_YOFFSET_1(ED_YPOS_YAM) - \
 284                                          ED_AREA_YOFFSET_2(3))
 285
 286 // magic ball content
 287 #define ED_XPOS_BALL                    0
 288 #define ED_YPOS_BALL                    6
 289 #define ED_AREA_MAGIC_BALL_CONTENT_XPOS ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_BALL)
 290 #define ED_AREA_MAGIC_BALL_CONTENT_YPOS ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_BALL)
 291 #define ED_AREA_MAGIC_BALL_CONTENT_XOFF(n) ED_AREA_ELEMENT_CONTENT_XOFF(n)
 292 #define ED_AREA_MAGIC_BALL_CONTENT_YOFF(n) ED_AREA_ELEMENT_CONTENT_YOFF(n)
 293 #define ED_AREA_MAGIC_BALL_CONTENT_X(n) (ED_ELEMENT_SETTINGS_X(ED_XPOS_BALL) + \
 294                                          ED_SETTINGS_XOFF(n))
 295 #define ED_AREA_MAGIC_BALL_CONTENT_Y(n) (ED_ELEMENT_SETTINGS_Y(ED_YPOS_BALL) + \
 296                                          ED_SETTINGS_YOFF(n) +          \
 297                                          ED_AREA_YOFFSET_1(ED_YPOS_BALL) - \
 298                                          ED_AREA_YOFFSET_2(3))
 299
 300 // values for scrolling gadgets for drawing area
 301 #define ED_SCROLLBUTTON_XSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].width)
 302 #define ED_SCROLLBUTTON_YSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].height)
 303
 304 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 305 #define ED_SCROLL_UP_YPOS               (0)
 306 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 307 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 308 #define ED_SCROLL_LEFT_XPOS             (0)
 309 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 310 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 311 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 312 #define ED_SCROLL_HORIZONTAL_XPOS       (ED_SCROLL_LEFT_XPOS +          \
 313                                          ED_SCROLLBUTTON_XSIZE)
 314 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 315 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 316 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 317 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 318 #define ED_SCROLL_VERTICAL_YPOS         (ED_SCROLL_UP_YPOS +            \
 319                                          ED_SCROLLBUTTON_YSIZE)
 320 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 321 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 322
 323 // values for scrolling gadgets for element list
 324 #define ED_SCROLLBUTTON2_XSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].width)
 325 #define ED_SCROLLBUTTON2_YSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].height)
 326
 327 #define ED_SCROLL2_UP_XPOS              (ED_ELEMENTLIST_XPOS +          \
 328                                          ED_ELEMENTLIST_BUTTONS_HORIZ * \
 329                                          ED_ELEMENTLIST_XSIZE)
 330 #define ED_SCROLL2_UP_YPOS              ED_ELEMENTLIST_YPOS
 331 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 332 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS +           \
 333                                          ED_ELEMENTLIST_BUTTONS_VERT *  \
 334                                          ED_ELEMENTLIST_YSIZE -         \
 335                                          ED_SCROLLBUTTON2_YSIZE)
 336 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 337 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS +           \
 338                                          ED_SCROLLBUTTON2_YSIZE)
 339 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 340 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT *  \
 341                                          ED_ELEMENTLIST_YSIZE -         \
 342                                          2 * ED_SCROLLBUTTON2_YSIZE)
 343
 344 // values for ClearEditorGadgetInfoText() and HandleEditorGadgetInfoText()
 345 #define INFOTEXT_FONT           FONT_TEXT_2
 346 #define INFOTEXT_XSIZE          SXSIZE
 347 #define INFOTEXT_YSIZE          getFontHeight(INFOTEXT_FONT)
 348 #define INFOTEXT_YSIZE_FULL     (INFOTEXT_YSIZE + ED_GADGET_SMALL_DISTANCE)
 349 #define INFOTEXT_X              (editor.settings.tooltip.x)
 350 #define INFOTEXT_Y              (editor.settings.tooltip.y)
 351 #define INFOTEXT_XY_REDEFINED   (INFOTEXT_X != -1 || INFOTEXT_Y != -1)
 352 #define INFOTEXT_XPOS           SX + (INFOTEXT_XY_REDEFINED ? INFOTEXT_X : 0)
 353 #define INFOTEXT_YPOS           SY + (INFOTEXT_XY_REDEFINED ? INFOTEXT_Y : \
 354                                       SYSIZE - INFOTEXT_YSIZE)
 355
 356
 357 // ----------------------------------------------------------------------------
 358 // editor gadget definitions
 359 // ----------------------------------------------------------------------------
 360
 361 enum
 362 {
 363   GADGET_ID_NONE = -1,
 364
 365   // drawing toolbox buttons
 366
 367   GADGET_ID_SINGLE_ITEMS,
 368   GADGET_ID_CONNECTED_ITEMS,
 369   GADGET_ID_LINE,
 370   GADGET_ID_ARC,
 371   GADGET_ID_RECTANGLE,
 372   GADGET_ID_FILLED_BOX,
 373   GADGET_ID_WRAP_UP,
 374   GADGET_ID_TEXT,
 375   GADGET_ID_FLOOD_FILL,
 376   GADGET_ID_WRAP_LEFT,
 377   GADGET_ID_ZOOM,
 378   GADGET_ID_WRAP_RIGHT,
 379   GADGET_ID_RANDOM_PLACEMENT,
 380   GADGET_ID_GRAB_BRUSH,
 381   GADGET_ID_WRAP_DOWN,
 382   GADGET_ID_PICK_ELEMENT,
 383
 384   GADGET_ID_UNDO,
 385   GADGET_ID_CONF,
 386   GADGET_ID_SAVE,
 387   GADGET_ID_CLEAR,
 388   GADGET_ID_TEST,
 389   GADGET_ID_EXIT,
 390
 391   GADGET_ID_CUSTOM_COPY_FROM,
 392   GADGET_ID_CUSTOM_COPY_TO,
 393   GADGET_ID_CUSTOM_EXCHANGE,
 394   GADGET_ID_CUSTOM_COPY,
 395   GADGET_ID_CUSTOM_PASTE,
 396
 397   GADGET_ID_PROPERTIES,
 398   GADGET_ID_ELEMENT_LEFT,
 399   GADGET_ID_ELEMENT_MIDDLE,
 400   GADGET_ID_ELEMENT_RIGHT,
 401   GADGET_ID_PALETTE,
 402
 403   // counter gadget identifiers
 404
 405   GADGET_ID_SELECT_LEVEL_DOWN,
 406   GADGET_ID_SELECT_LEVEL_TEXT,
 407   GADGET_ID_SELECT_LEVEL_UP,
 408   GADGET_ID_LEVEL_XSIZE_DOWN,
 409   GADGET_ID_LEVEL_XSIZE_TEXT,
 410   GADGET_ID_LEVEL_XSIZE_UP,
 411   GADGET_ID_LEVEL_YSIZE_DOWN,
 412   GADGET_ID_LEVEL_YSIZE_TEXT,
 413   GADGET_ID_LEVEL_YSIZE_UP,
 414   GADGET_ID_LEVEL_RANDOM_DOWN,
 415   GADGET_ID_LEVEL_RANDOM_TEXT,
 416   GADGET_ID_LEVEL_RANDOM_UP,
 417   GADGET_ID_LEVEL_GEMSLIMIT_DOWN,
 418   GADGET_ID_LEVEL_GEMSLIMIT_TEXT,
 419   GADGET_ID_LEVEL_GEMSLIMIT_UP,
 420   GADGET_ID_LEVEL_TIMELIMIT_DOWN,
 421   GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 422   GADGET_ID_LEVEL_TIMELIMIT_UP,
 423   GADGET_ID_LEVEL_TIMESCORE_DOWN,
 424   GADGET_ID_LEVEL_TIMESCORE_TEXT,
 425   GADGET_ID_LEVEL_TIMESCORE_UP,
 426   GADGET_ID_LEVEL_RANDOM_SEED_DOWN,
 427   GADGET_ID_LEVEL_RANDOM_SEED_TEXT,
 428   GADGET_ID_LEVEL_RANDOM_SEED_UP,
 429   GADGET_ID_LEVELSET_NUM_LEVELS_DOWN,
 430   GADGET_ID_LEVELSET_NUM_LEVELS_TEXT,
 431   GADGET_ID_LEVELSET_NUM_LEVELS_UP,
 432   GADGET_ID_BD_CYCLE_DELAY_MS_DOWN,
 433   GADGET_ID_BD_CYCLE_DELAY_MS_TEXT,
 434   GADGET_ID_BD_CYCLE_DELAY_MS_UP,
 435   GADGET_ID_BD_CYCLE_DELAY_C64_DOWN,
 436   GADGET_ID_BD_CYCLE_DELAY_C64_TEXT,
 437   GADGET_ID_BD_CYCLE_DELAY_C64_UP,
 438   GADGET_ID_BD_HATCHING_DELAY_CYCLES_DOWN,
 439   GADGET_ID_BD_HATCHING_DELAY_CYCLES_TEXT,
 440   GADGET_ID_BD_HATCHING_DELAY_CYCLES_UP,
 441   GADGET_ID_BD_HATCHING_DELAY_SECONDS_DOWN,
 442   GADGET_ID_BD_HATCHING_DELAY_SECONDS_TEXT,
 443   GADGET_ID_BD_HATCHING_DELAY_SECONDS_UP,
 444   GADGET_ID_BD_PUSHING_PROB_DOWN,
 445   GADGET_ID_BD_PUSHING_PROB_TEXT,
 446   GADGET_ID_BD_PUSHING_PROB_UP,
 447   GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_DOWN,
 448   GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_TEXT,
 449   GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_UP,
 450   GADGET_ID_ELEMENT_VALUE1_DOWN,
 451   GADGET_ID_ELEMENT_VALUE1_TEXT,
 452   GADGET_ID_ELEMENT_VALUE1_UP,
 453   GADGET_ID_ELEMENT_VALUE2_DOWN,
 454   GADGET_ID_ELEMENT_VALUE2_TEXT,
 455   GADGET_ID_ELEMENT_VALUE2_UP,
 456   GADGET_ID_ELEMENT_VALUE3_DOWN,
 457   GADGET_ID_ELEMENT_VALUE3_TEXT,
 458   GADGET_ID_ELEMENT_VALUE3_UP,
 459   GADGET_ID_ELEMENT_VALUE4_DOWN,
 460   GADGET_ID_ELEMENT_VALUE4_TEXT,
 461   GADGET_ID_ELEMENT_VALUE4_UP,
 462   GADGET_ID_YAMYAM_CONTENT_DOWN,
 463   GADGET_ID_YAMYAM_CONTENT_TEXT,
 464   GADGET_ID_YAMYAM_CONTENT_UP,
 465   GADGET_ID_BALL_CONTENT_DOWN,
 466   GADGET_ID_BALL_CONTENT_TEXT,
 467   GADGET_ID_BALL_CONTENT_UP,
 468   GADGET_ID_ANDROID_CONTENT_DOWN,
 469   GADGET_ID_ANDROID_CONTENT_TEXT,
 470   GADGET_ID_ANDROID_CONTENT_UP,
 471   GADGET_ID_ENVELOPE_XSIZE_DOWN,
 472   GADGET_ID_ENVELOPE_XSIZE_TEXT,
 473   GADGET_ID_ENVELOPE_XSIZE_UP,
 474   GADGET_ID_ENVELOPE_YSIZE_DOWN,
 475   GADGET_ID_ENVELOPE_YSIZE_TEXT,
 476   GADGET_ID_ENVELOPE_YSIZE_UP,
 477   GADGET_ID_INVENTORY_SIZE_DOWN,
 478   GADGET_ID_INVENTORY_SIZE_TEXT,
 479   GADGET_ID_INVENTORY_SIZE_UP,
 480   GADGET_ID_MM_BALL_CONTENT_DOWN,
 481   GADGET_ID_MM_BALL_CONTENT_TEXT,
 482   GADGET_ID_MM_BALL_CONTENT_UP,
 483   GADGET_ID_CUSTOM_SCORE_DOWN,
 484   GADGET_ID_CUSTOM_SCORE_TEXT,
 485   GADGET_ID_CUSTOM_SCORE_UP,
 486   GADGET_ID_CUSTOM_GEMCOUNT_DOWN,
 487   GADGET_ID_CUSTOM_GEMCOUNT_TEXT,
 488   GADGET_ID_CUSTOM_GEMCOUNT_UP,
 489   GADGET_ID_CUSTOM_VALUE_FIX_DOWN,
 490   GADGET_ID_CUSTOM_VALUE_FIX_TEXT,
 491   GADGET_ID_CUSTOM_VALUE_FIX_UP,
 492   GADGET_ID_CUSTOM_VALUE_RND_DOWN,
 493   GADGET_ID_CUSTOM_VALUE_RND_TEXT,
 494   GADGET_ID_CUSTOM_VALUE_RND_UP,
 495   GADGET_ID_PUSH_DELAY_FIX_DOWN,
 496   GADGET_ID_PUSH_DELAY_FIX_TEXT,
 497   GADGET_ID_PUSH_DELAY_FIX_UP,
 498   GADGET_ID_PUSH_DELAY_RND_DOWN,
 499   GADGET_ID_PUSH_DELAY_RND_TEXT,
 500   GADGET_ID_PUSH_DELAY_RND_UP,
 501   GADGET_ID_DROP_DELAY_FIX_DOWN,
 502   GADGET_ID_DROP_DELAY_FIX_TEXT,
 503   GADGET_ID_DROP_DELAY_FIX_UP,
 504   GADGET_ID_DROP_DELAY_RND_DOWN,
 505   GADGET_ID_DROP_DELAY_RND_TEXT,
 506   GADGET_ID_DROP_DELAY_RND_UP,
 507   GADGET_ID_MOVE_DELAY_FIX_DOWN,
 508   GADGET_ID_MOVE_DELAY_FIX_TEXT,
 509   GADGET_ID_MOVE_DELAY_FIX_UP,
 510   GADGET_ID_MOVE_DELAY_RND_DOWN,
 511   GADGET_ID_MOVE_DELAY_RND_TEXT,
 512   GADGET_ID_MOVE_DELAY_RND_UP,
 513   GADGET_ID_STEP_DELAY_FIX_DOWN,
 514   GADGET_ID_STEP_DELAY_FIX_TEXT,
 515   GADGET_ID_STEP_DELAY_FIX_UP,
 516   GADGET_ID_STEP_DELAY_RND_DOWN,
 517   GADGET_ID_STEP_DELAY_RND_TEXT,
 518   GADGET_ID_STEP_DELAY_RND_UP,
 519   GADGET_ID_EXPLOSION_DELAY_DOWN,
 520   GADGET_ID_EXPLOSION_DELAY_TEXT,
 521   GADGET_ID_EXPLOSION_DELAY_UP,
 522   GADGET_ID_IGNITION_DELAY_DOWN,
 523   GADGET_ID_IGNITION_DELAY_TEXT,
 524   GADGET_ID_IGNITION_DELAY_UP,
 525   GADGET_ID_CHANGE_DELAY_FIX_DOWN,
 526   GADGET_ID_CHANGE_DELAY_FIX_TEXT,
 527   GADGET_ID_CHANGE_DELAY_FIX_UP,
 528   GADGET_ID_CHANGE_DELAY_RND_DOWN,
 529   GADGET_ID_CHANGE_DELAY_RND_TEXT,
 530   GADGET_ID_CHANGE_DELAY_RND_UP,
 531   GADGET_ID_CHANGE_CONT_RND_DOWN,
 532   GADGET_ID_CHANGE_CONT_RND_TEXT,
 533   GADGET_ID_CHANGE_CONT_RND_UP,
 534   GADGET_ID_GROUP_CONTENT_DOWN,
 535   GADGET_ID_GROUP_CONTENT_TEXT,
 536   GADGET_ID_GROUP_CONTENT_UP,
 537
 538   // drawing area identifiers
 539
 540   GADGET_ID_DRAWING_LEVEL,
 541   GADGET_ID_YAMYAM_CONTENT_0,
 542   GADGET_ID_YAMYAM_CONTENT_1,
 543   GADGET_ID_YAMYAM_CONTENT_2,
 544   GADGET_ID_YAMYAM_CONTENT_3,
 545   GADGET_ID_YAMYAM_CONTENT_4,
 546   GADGET_ID_YAMYAM_CONTENT_5,
 547   GADGET_ID_YAMYAM_CONTENT_6,
 548   GADGET_ID_YAMYAM_CONTENT_7,
 549   GADGET_ID_MAGIC_BALL_CONTENT_0,
 550   GADGET_ID_MAGIC_BALL_CONTENT_1,
 551   GADGET_ID_MAGIC_BALL_CONTENT_2,
 552   GADGET_ID_MAGIC_BALL_CONTENT_3,
 553   GADGET_ID_MAGIC_BALL_CONTENT_4,
 554   GADGET_ID_MAGIC_BALL_CONTENT_5,
 555   GADGET_ID_MAGIC_BALL_CONTENT_6,
 556   GADGET_ID_MAGIC_BALL_CONTENT_7,
 557   GADGET_ID_ANDROID_CONTENT,
 558   GADGET_ID_AMOEBA_CONTENT,
 559   GADGET_ID_BD_SNAP_ELEMENT,
 560   GADGET_ID_BD_MAGIC_WALL_DIAMOND_TO,
 561   GADGET_ID_BD_MAGIC_WALL_ROCK_TO,
 562   GADGET_ID_BD_MAGIC_WALL_MEGA_ROCK_TO,
 563   GADGET_ID_BD_MAGIC_WALL_NUT_TO,
 564   GADGET_ID_BD_MAGIC_WALL_NITRO_PACK_TO,
 565   GADGET_ID_BD_MAGIC_WALL_FLYING_DIAMOND_TO,
 566   GADGET_ID_BD_MAGIC_WALL_FLYING_ROCK_TO,
 567   GADGET_ID_BD_AMOEBA_CONTENT_TOO_BIG,
 568   GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED,
 569   GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
 570   GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
 571   GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
 572   GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
 573   GADGET_ID_BD_ACID_EATS_ELEMENT,
 574   GADGET_ID_BD_ACID_TURNS_TO_ELEMENT,
 575   GADGET_ID_BD_BITER_EATS_ELEMENT,
 576   GADGET_ID_BD_BLADDER_CONVERTS_BY_ELEMENT,
 577   GADGET_ID_START_ELEMENT,
 578   GADGET_ID_ARTWORK_ELEMENT,
 579   GADGET_ID_EXPLOSION_ELEMENT,
 580   GADGET_ID_INVENTORY_CONTENT,
 581   GADGET_ID_MM_BALL_CONTENT,
 582   GADGET_ID_CUSTOM_GRAPHIC,
 583   GADGET_ID_CUSTOM_CONTENT,
 584   GADGET_ID_CUSTOM_MOVE_ENTER,
 585   GADGET_ID_CUSTOM_MOVE_LEAVE,
 586   GADGET_ID_CUSTOM_CHANGE_TARGET,
 587   GADGET_ID_CUSTOM_CHANGE_CONTENT,
 588   GADGET_ID_CUSTOM_CHANGE_TRIGGER,
 589   GADGET_ID_CUSTOM_CHANGE_ACTION,
 590   GADGET_ID_GROUP_CONTENT,
 591   GADGET_ID_RANDOM_BACKGROUND,
 592
 593   // text input identifiers
 594
 595   GADGET_ID_LEVEL_NAME,
 596   GADGET_ID_LEVEL_AUTHOR,
 597   GADGET_ID_LEVELSET_NAME,
 598   GADGET_ID_LEVELSET_AUTHOR,
 599   GADGET_ID_ELEMENT_NAME,
 600
 601   // text area identifiers
 602
 603   GADGET_ID_ENVELOPE_INFO,
 604
 605   // selectbox identifiers
 606
 607   GADGET_ID_TIME_OR_STEPS,
 608   GADGET_ID_TIME_SCORE_BASE,
 609   GADGET_ID_GAME_ENGINE_TYPE,
 610   GADGET_ID_BD_SCHEDULING_TYPE,
 611   GADGET_ID_LEVELSET_SAVE_MODE,
 612   GADGET_ID_WIND_DIRECTION,
 613   GADGET_ID_PLAYER_SPEED,
 614   GADGET_ID_MM_BALL_CHOICE_MODE,
 615   GADGET_ID_CUSTOM_WALK_TO_ACTION,
 616   GADGET_ID_CUSTOM_EXPLOSION_TYPE,
 617   GADGET_ID_CUSTOM_DEADLINESS,
 618   GADGET_ID_CUSTOM_MOVE_PATTERN,
 619   GADGET_ID_CUSTOM_MOVE_DIRECTION,
 620   GADGET_ID_CUSTOM_MOVE_STEPSIZE,
 621   GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
 622   GADGET_ID_CUSTOM_SMASH_TARGETS,
 623   GADGET_ID_CUSTOM_SLIPPERY_TYPE,
 624   GADGET_ID_CUSTOM_ACCESS_TYPE,
 625   GADGET_ID_CUSTOM_ACCESS_LAYER,
 626   GADGET_ID_CUSTOM_ACCESS_PROTECTED,
 627   GADGET_ID_CUSTOM_ACCESS_DIRECTION,
 628   GADGET_ID_CHANGE_TIME_UNITS,
 629   GADGET_ID_CHANGE_DIRECT_ACTION,
 630   GADGET_ID_CHANGE_OTHER_ACTION,
 631   GADGET_ID_CHANGE_SIDE,
 632   GADGET_ID_CHANGE_PLAYER,
 633   GADGET_ID_CHANGE_PAGE,
 634   GADGET_ID_CHANGE_REPLACE_WHEN,
 635   GADGET_ID_ACTION_TYPE,
 636   GADGET_ID_ACTION_MODE,
 637   GADGET_ID_ACTION_ARG,
 638   GADGET_ID_SELECT_CHANGE_PAGE,
 639   GADGET_ID_GROUP_CHOICE_MODE,
 640
 641   // textbutton identifiers
 642
 643   GADGET_ID_LEVELCONFIG_LEVEL,
 644   GADGET_ID_LEVELCONFIG_LEVELSET,
 645   GADGET_ID_LEVELCONFIG_EDITOR,
 646   GADGET_ID_LEVELCONFIG_ENGINE,
 647   GADGET_ID_PROPERTIES_INFO,
 648   GADGET_ID_PROPERTIES_CONFIG,
 649   GADGET_ID_PROPERTIES_CONFIG_1,
 650   GADGET_ID_PROPERTIES_CONFIG_2,
 651   GADGET_ID_PROPERTIES_CHANGE,
 652   GADGET_ID_SAVE_AS_TEMPLATE_1,
 653   GADGET_ID_SAVE_AS_TEMPLATE_2,
 654   GADGET_ID_SAVE_LEVELSET,
 655   GADGET_ID_ADD_CHANGE_PAGE,
 656   GADGET_ID_DEL_CHANGE_PAGE,
 657
 658   // graphicbutton identifiers
 659
 660   GADGET_ID_PREV_CHANGE_PAGE,
 661   GADGET_ID_NEXT_CHANGE_PAGE,
 662   GADGET_ID_COPY_CHANGE_PAGE,
 663   GADGET_ID_PASTE_CHANGE_PAGE,
 664
 665   // gadgets for scrolling of drawing area
 666
 667   GADGET_ID_SCROLL_UP,
 668   GADGET_ID_SCROLL_DOWN,
 669   GADGET_ID_SCROLL_LEFT,
 670   GADGET_ID_SCROLL_RIGHT,
 671   GADGET_ID_SCROLL_HORIZONTAL,
 672   GADGET_ID_SCROLL_VERTICAL,
 673
 674   // gadgets for scrolling element list
 675
 676   GADGET_ID_SCROLL_LIST_UP,
 677   GADGET_ID_SCROLL_LIST_DOWN,
 678   GADGET_ID_SCROLL_LIST_VERTICAL,
 679
 680   // checkbuttons/radiobuttons for level/element properties
 681
 682   GADGET_ID_AUTO_COUNT_GEMS,
 683   GADGET_ID_RATE_TIME_OVER_SCORE,
 684   GADGET_ID_USE_LEVELSET_ARTWORK,
 685   GADGET_ID_COPY_LEVEL_TEMPLATE,
 686   GADGET_ID_RANDOM_PERCENTAGE,
 687   GADGET_ID_RANDOM_QUANTITY,
 688   GADGET_ID_RANDOM_RESTRICTED,
 689   GADGET_ID_BD_INTERMISSION,
 690   GADGET_ID_BD_PAL_TIMING,
 691   GADGET_ID_BD_LINE_SHIFTING_BORDERS,
 692   GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW,
 693   GADGET_ID_BD_SHORT_EXPLOSIONS,
 694   GADGET_ID_BD_GRAVITY_AFFECTS_ALL,
 695   GADGET_ID_STICK_ELEMENT,
 696   GADGET_ID_EM_SLIPPERY_GEMS,
 697   GADGET_ID_EM_EXPLODES_BY_FIRE,
 698   GADGET_ID_USE_SPRING_BUG,
 699   GADGET_ID_USE_TIME_ORB_BUG,
 700   GADGET_ID_USE_LIFE_BUGS,
 701   GADGET_ID_RANDOM_BALL_CONTENT,
 702   GADGET_ID_INITIAL_BALL_ACTIVE,
 703   GADGET_ID_GROW_INTO_DIGGABLE,
 704   GADGET_ID_SB_FIELDS_NEEDED,
 705   GADGET_ID_SB_OBJECTS_NEEDED,
 706   GADGET_ID_AUTO_EXIT_SOKOBAN,
 707   GADGET_ID_SOLVED_BY_ONE_PLAYER,
 708   GADGET_ID_FINISH_DIG_COLLECT,
 709   GADGET_ID_KEEP_WALKABLE_CE,
 710   GADGET_ID_CONTINUOUS_SNAPPING,
 711   GADGET_ID_BLOCK_SNAP_FIELD,
 712   GADGET_ID_BLOCK_LAST_FIELD,
 713   GADGET_ID_SP_BLOCK_LAST_FIELD,
 714   GADGET_ID_INSTANT_RELOCATION,
 715   GADGET_ID_SHIFTED_RELOCATION,
 716   GADGET_ID_LAZY_RELOCATION,
 717   GADGET_ID_USE_START_ELEMENT,
 718   GADGET_ID_USE_ARTWORK_ELEMENT,
 719   GADGET_ID_USE_EXPLOSION_ELEMENT,
 720   GADGET_ID_INITIAL_GRAVITY,
 721   GADGET_ID_USE_INITIAL_INVENTORY,
 722   GADGET_ID_CAN_PASS_TO_WALKABLE,
 723   GADGET_ID_CAN_FALL_INTO_ACID,
 724   GADGET_ID_CAN_MOVE_INTO_ACID,
 725   GADGET_ID_DONT_COLLIDE_WITH,
 726   GADGET_ID_BD_DIAGONAL_MOVEMENTS,
 727   GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE,
 728   GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
 729   GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING,
 730   GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
 731   GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
 732   GADGET_ID_BD_AMOEBA_START_IMMEDIATELY,
 733   GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
 734   GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS,
 735   GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER,
 736   GADGET_ID_BD_VOODOO_DIES_BY_ROCK,
 737   GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
 738   GADGET_ID_BD_SLIME_IS_PREDICTABLE,
 739   GADGET_ID_BD_CHANGE_EXPANDING_WALL,
 740   GADGET_ID_BD_REPLICATORS_ACTIVE,
 741   GADGET_ID_BD_CONVEYOR_BELTS_ACTIVE,
 742   GADGET_ID_BD_CONVEYOR_BELTS_CHANGED,
 743   GADGET_ID_BD_WATER_CANNOT_FLOW_DOWN,
 744   GADGET_ID_ENVELOPE_AUTOWRAP,
 745   GADGET_ID_ENVELOPE_CENTERED,
 746   GADGET_ID_MM_LASER_RED,
 747   GADGET_ID_MM_LASER_GREEN,
 748   GADGET_ID_MM_LASER_BLUE,
 749   GADGET_ID_DF_LASER_RED,
 750   GADGET_ID_DF_LASER_GREEN,
 751   GADGET_ID_DF_LASER_BLUE,
 752   GADGET_ID_ROTATE_MM_BALL_CONTENT,
 753   GADGET_ID_EXPLODE_MM_BALL,
 754   GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 755   GADGET_ID_CUSTOM_CAN_EXPLODE,
 756   GADGET_ID_CUSTOM_EXPLODE_FIRE,
 757   GADGET_ID_CUSTOM_EXPLODE_SMASH,
 758   GADGET_ID_CUSTOM_EXPLODE_IMPACT,
 759   GADGET_ID_CUSTOM_WALK_TO_OBJECT,
 760   GADGET_ID_CUSTOM_DEADLY,
 761   GADGET_ID_CUSTOM_CAN_MOVE,
 762   GADGET_ID_CUSTOM_CAN_FALL,
 763   GADGET_ID_CUSTOM_CAN_SMASH,
 764   GADGET_ID_CUSTOM_SLIPPERY,
 765   GADGET_ID_CUSTOM_ACCESSIBLE,
 766   GADGET_ID_CUSTOM_GRAV_REACHABLE,
 767   GADGET_ID_CUSTOM_USE_LAST_VALUE,
 768   GADGET_ID_CUSTOM_USE_GRAPHIC,
 769   GADGET_ID_CUSTOM_USE_TEMPLATE_1,
 770   GADGET_ID_CUSTOM_USE_TEMPLATE_2,
 771   GADGET_ID_CUSTOM_USE_TEMPLATE_3,
 772   GADGET_ID_CUSTOM_CAN_CHANGE,
 773   GADGET_ID_CHANGE_USE_CONTENT,
 774   GADGET_ID_CHANGE_USE_EXPLOSION,
 775   GADGET_ID_CHANGE_ONLY_COMPLETE,
 776   GADGET_ID_CHANGE_USE_RANDOM,
 777   GADGET_ID_CHANGE_HAS_ACTION,
 778   GADGET_ID_CHANGE_DELAY,
 779   GADGET_ID_CHANGE_BY_DIRECT_ACT,
 780   GADGET_ID_CHANGE_BY_OTHER_ACT,
 781
 782   NUM_STATIC_GADGET_IDS
 783 };
 784
 785 // gadgets for buttons in element list (dynamic)
 786 #define GADGET_ID_ELEMENTLIST_FIRST     (NUM_STATIC_GADGET_IDS)
 787 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 788                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 789
 790 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 791
 792 // radio button numbers
 793 enum
 794 {
 795   RADIO_NR_NONE,
 796   RADIO_NR_DRAWING_TOOLBOX,
 797   RADIO_NR_RANDOM_ELEMENTS
 798 };
 799
 800 // values for counter gadgets
 801 enum
 802 {
 803   ED_COUNTER_ID_SELECT_LEVEL,
 804   ED_COUNTER_ID_LEVEL_XSIZE,
 805   ED_COUNTER_ID_LEVEL_YSIZE,
 806   ED_COUNTER_ID_LEVEL_GEMSLIMIT,
 807   ED_COUNTER_ID_LEVEL_TIMELIMIT,
 808   ED_COUNTER_ID_LEVEL_TIMESCORE,
 809   ED_COUNTER_ID_LEVEL_RANDOM_SEED,
 810   ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
 811   ED_COUNTER_ID_LEVEL_RANDOM,
 812   ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
 813   ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
 814   ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
 815   ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
 816   ED_COUNTER_ID_BD_PUSHING_PROB,
 817   ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
 818   ED_COUNTER_ID_ELEMENT_VALUE1,
 819   ED_COUNTER_ID_ELEMENT_VALUE2,
 820   ED_COUNTER_ID_ELEMENT_VALUE3,
 821   ED_COUNTER_ID_ELEMENT_VALUE4,
 822   ED_COUNTER_ID_YAMYAM_CONTENT,
 823   ED_COUNTER_ID_BALL_CONTENT,
 824   ED_COUNTER_ID_ANDROID_CONTENT,
 825   ED_COUNTER_ID_ENVELOPE_XSIZE,
 826   ED_COUNTER_ID_ENVELOPE_YSIZE,
 827   ED_COUNTER_ID_INVENTORY_SIZE,
 828   ED_COUNTER_ID_MM_BALL_CONTENT,
 829   ED_COUNTER_ID_CUSTOM_SCORE,
 830   ED_COUNTER_ID_CUSTOM_GEMCOUNT,
 831   ED_COUNTER_ID_CUSTOM_VALUE_FIX,
 832   ED_COUNTER_ID_CUSTOM_VALUE_RND,
 833   ED_COUNTER_ID_PUSH_DELAY_FIX,
 834   ED_COUNTER_ID_PUSH_DELAY_RND,
 835   ED_COUNTER_ID_DROP_DELAY_FIX,
 836   ED_COUNTER_ID_DROP_DELAY_RND,
 837   ED_COUNTER_ID_MOVE_DELAY_FIX,
 838   ED_COUNTER_ID_MOVE_DELAY_RND,
 839   ED_COUNTER_ID_STEP_DELAY_FIX,
 840   ED_COUNTER_ID_STEP_DELAY_RND,
 841   ED_COUNTER_ID_EXPLOSION_DELAY,
 842   ED_COUNTER_ID_IGNITION_DELAY,
 843   ED_COUNTER_ID_GROUP_CONTENT,
 844   ED_COUNTER_ID_CHANGE_DELAY_FIX,
 845   ED_COUNTER_ID_CHANGE_DELAY_RND,
 846   ED_COUNTER_ID_CHANGE_CONT_RND,
 847
 848   ED_NUM_COUNTERBUTTONS
 849 };
 850
 851 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 852 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 853 #define ED_COUNTER_ID_LEVELSET_FIRST    ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 854 #define ED_COUNTER_ID_LEVELSET_LAST     ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 855 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 856 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 857
 858 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 859 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 860 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 861 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 862 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 863 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 864
 865 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 866 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 867
 868 // values for scrollbutton gadgets
 869 enum
 870 {
 871   ED_SCROLLBUTTON_ID_AREA_UP,
 872   ED_SCROLLBUTTON_ID_AREA_DOWN,
 873   ED_SCROLLBUTTON_ID_AREA_LEFT,
 874   ED_SCROLLBUTTON_ID_AREA_RIGHT,
 875   ED_SCROLLBUTTON_ID_LIST_UP,
 876   ED_SCROLLBUTTON_ID_LIST_DOWN,
 877
 878   ED_NUM_SCROLLBUTTONS
 879 };
 880
 881 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 882 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 883
 884 // values for scrollbar gadgets
 885 enum
 886 {
 887   ED_SCROLLBAR_ID_AREA_HORIZONTAL,
 888   ED_SCROLLBAR_ID_AREA_VERTICAL,
 889   ED_SCROLLBAR_ID_LIST_VERTICAL,
 890
 891   ED_NUM_SCROLLBARS
 892 };
 893
 894 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 895 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 896
 897 // values for text input gadgets
 898 enum
 899 {
 900   ED_TEXTINPUT_ID_LEVEL_NAME,
 901   ED_TEXTINPUT_ID_LEVEL_AUTHOR,
 902   ED_TEXTINPUT_ID_LEVELSET_NAME,
 903   ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
 904   ED_TEXTINPUT_ID_ELEMENT_NAME,
 905
 906   ED_NUM_TEXTINPUT
 907 };
 908
 909 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 910 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 911
 912 #define ED_TEXTINPUT_ID_LEVELSET_FIRST  ED_TEXTINPUT_ID_LEVELSET_NAME
 913 #define ED_TEXTINPUT_ID_LEVELSET_LAST   ED_TEXTINPUT_ID_LEVELSET_AUTHOR
 914
 915 // values for text area gadgets
 916 enum
 917 {
 918   ED_TEXTAREA_ID_ENVELOPE_INFO,
 919
 920   ED_NUM_TEXTAREAS
 921 };
 922
 923 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 924 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 925
 926 // values for selectbox gadgets
 927 enum
 928 {
 929   ED_SELECTBOX_ID_TIME_OR_STEPS,
 930   ED_SELECTBOX_ID_TIME_SCORE_BASE,
 931   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
 932   ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
 933   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
 934   ED_SELECTBOX_ID_WIND_DIRECTION,
 935   ED_SELECTBOX_ID_PLAYER_SPEED,
 936   ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
 937   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
 938   ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
 939   ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
 940   ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
 941   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
 942   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
 943   ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
 944   ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
 945   ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
 946   ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
 947   ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
 948   ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
 949   ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
 950   ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
 951   ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
 952   ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
 953   ED_SELECTBOX_ID_CHANGE_SIDE,
 954   ED_SELECTBOX_ID_CHANGE_PLAYER,
 955   ED_SELECTBOX_ID_CHANGE_PAGE,
 956   ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
 957   ED_SELECTBOX_ID_ACTION_TYPE,
 958   ED_SELECTBOX_ID_ACTION_MODE,
 959   ED_SELECTBOX_ID_ACTION_ARG,
 960   ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
 961   ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
 962
 963   ED_NUM_SELECTBOX
 964 };
 965
 966 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 967 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 968
 969 #define ED_SELECTBOX_ID_LEVELSET_FIRST  ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 970 #define ED_SELECTBOX_ID_LEVELSET_LAST   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 971
 972 #define ED_SELECTBOX_ID_ENGINE_FIRST    ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 973 #define ED_SELECTBOX_ID_ENGINE_LAST     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 974
 975 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 976 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 977 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 978 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 979 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 980 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 981
 982 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 983 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 984
 985 // values for textbutton gadgets
 986 enum
 987 {
 988   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
 989   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
 990   ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
 991   ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
 992   ED_TEXTBUTTON_ID_PROPERTIES_INFO,
 993   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
 994   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
 995   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
 996   ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
 997   ED_TEXTBUTTON_ID_SAVE_LEVELSET,
 998   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
 999   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
1000   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
1001   ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
1002
1003   ED_NUM_TEXTBUTTONS
1004 };
1005
1006 #define ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
1007 #define ED_TAB_BUTTON_ID_LEVELCONFIG_LAST  ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
1008
1009 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
1010 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1011
1012 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
1013 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
1014
1015 // values for graphicbutton gadgets
1016 enum
1017 {
1018   ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
1019   ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
1020   ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
1021   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
1022
1023   ED_NUM_GRAPHICBUTTONS
1024 };
1025
1026 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
1027 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
1028
1029 // values for checkbutton gadgets
1030 enum
1031 {
1032   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
1033   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
1034   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
1035   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
1036   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
1037   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
1038   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
1039   ED_CHECKBUTTON_ID_BD_INTERMISSION,
1040   ED_CHECKBUTTON_ID_BD_PAL_TIMING,
1041   ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
1042   ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
1043   ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
1044   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
1045   ED_CHECKBUTTON_ID_STICK_ELEMENT,
1046   ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
1047   ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
1048   ED_CHECKBUTTON_ID_USE_SPRING_BUG,
1049   ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
1050   ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
1051   ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
1052   ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
1053   ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
1054   ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
1055   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
1056   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
1057   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
1058   ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
1059   ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
1060   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
1061   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
1062   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
1063   ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
1064   ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
1065   ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
1066   ED_CHECKBUTTON_ID_LAZY_RELOCATION,
1067   ED_CHECKBUTTON_ID_USE_START_ELEMENT,
1068   ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
1069   ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
1070   ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
1071   ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
1072   ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
1073   ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
1074   ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
1075   ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
1076   ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
1077   ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
1078   ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
1079   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
1080   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
1081   ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
1082   ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
1083   ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
1084   ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
1085   ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
1086   ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
1087   ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
1088   ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE,
1089   ED_CHECKBUTTON_ID_BD_CHANGE_EXPANDING_WALL,
1090   ED_CHECKBUTTON_ID_BD_REPLICATORS_ACTIVE,
1091   ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_ACTIVE,
1092   ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_CHANGED,
1093   ED_CHECKBUTTON_ID_BD_WATER_CANNOT_FLOW_DOWN,
1094   ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
1095   ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
1096   ED_CHECKBUTTON_ID_MM_LASER_RED,
1097   ED_CHECKBUTTON_ID_MM_LASER_GREEN,
1098   ED_CHECKBUTTON_ID_MM_LASER_BLUE,
1099   ED_CHECKBUTTON_ID_DF_LASER_RED,
1100   ED_CHECKBUTTON_ID_DF_LASER_GREEN,
1101   ED_CHECKBUTTON_ID_DF_LASER_BLUE,
1102   ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
1103   ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
1104   ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
1105   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
1106   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
1107   ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
1108   ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
1109   ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
1110   ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
1111   ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
1112   ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
1113   ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
1114   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
1115   ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
1116   ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
1117   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
1118   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
1119   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
1120   ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
1121   ED_CHECKBUTTON_ID_CHANGE_DELAY,
1122   ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
1123   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
1124   ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
1125   ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
1126   ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
1127   ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
1128   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
1129
1130   ED_NUM_CHECKBUTTONS
1131 };
1132
1133 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
1134 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
1135
1136 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
1137 #define ED_CHECKBUTTON_ID_LEVELSET_LAST  ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
1138
1139 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
1140 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
1141
1142 #define ED_CHECKBUTTON_ID_ENGINE_FIRST  ED_CHECKBUTTON_ID_BD_INTERMISSION
1143 #define ED_CHECKBUTTON_ID_ENGINE_LAST   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL
1144
1145 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
1146 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
1147 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
1148 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
1149 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
1150 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
1151
1152 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
1153 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
1154
1155 // values for radiobutton gadgets
1156 enum
1157 {
1158   ED_RADIOBUTTON_ID_PERCENTAGE,
1159   ED_RADIOBUTTON_ID_QUANTITY,
1160
1161   ED_NUM_RADIOBUTTONS
1162 };
1163
1164 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
1165 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
1166
1167 // values for drawing area gadgets
1168 enum
1169 {
1170   ED_DRAWING_ID_DRAWING_LEVEL,
1171   ED_DRAWING_ID_YAMYAM_CONTENT_0,
1172   ED_DRAWING_ID_YAMYAM_CONTENT_1,
1173   ED_DRAWING_ID_YAMYAM_CONTENT_2,
1174   ED_DRAWING_ID_YAMYAM_CONTENT_3,
1175   ED_DRAWING_ID_YAMYAM_CONTENT_4,
1176   ED_DRAWING_ID_YAMYAM_CONTENT_5,
1177   ED_DRAWING_ID_YAMYAM_CONTENT_6,
1178   ED_DRAWING_ID_YAMYAM_CONTENT_7,
1179   ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
1180   ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
1181   ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
1182   ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
1183   ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
1184   ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
1185   ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
1186   ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
1187   ED_DRAWING_ID_ANDROID_CONTENT,
1188   ED_DRAWING_ID_AMOEBA_CONTENT,
1189   ED_DRAWING_ID_BD_SNAP_ELEMENT,
1190   ED_DRAWING_ID_BD_MAGIC_WALL_DIAMOND_TO,
1191   ED_DRAWING_ID_BD_MAGIC_WALL_ROCK_TO,
1192   ED_DRAWING_ID_BD_MAGIC_WALL_MEGA_ROCK_TO,
1193   ED_DRAWING_ID_BD_MAGIC_WALL_NUT_TO,
1194   ED_DRAWING_ID_BD_MAGIC_WALL_NITRO_PACK_TO,
1195   ED_DRAWING_ID_BD_MAGIC_WALL_FLYING_DIAMOND_TO,
1196   ED_DRAWING_ID_BD_MAGIC_WALL_FLYING_ROCK_TO,
1197   ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
1198   ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
1199   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
1200   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
1201   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
1202   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
1203   ED_DRAWING_ID_BD_ACID_EATS_ELEMENT,
1204   ED_DRAWING_ID_BD_ACID_TURNS_TO_ELEMENT,
1205   ED_DRAWING_ID_BD_BITER_EATS_ELEMENT,
1206   ED_DRAWING_ID_BD_BLADDER_CONVERTS_BY_ELEMENT,
1207   ED_DRAWING_ID_START_ELEMENT,
1208   ED_DRAWING_ID_ARTWORK_ELEMENT,
1209   ED_DRAWING_ID_EXPLOSION_ELEMENT,
1210   ED_DRAWING_ID_INVENTORY_CONTENT,
1211   ED_DRAWING_ID_MM_BALL_CONTENT,
1212   ED_DRAWING_ID_CUSTOM_GRAPHIC,
1213   ED_DRAWING_ID_CUSTOM_CONTENT,
1214   ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
1215   ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
1216   ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
1217   ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
1218   ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
1219   ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
1220   ED_DRAWING_ID_GROUP_CONTENT,
1221   ED_DRAWING_ID_RANDOM_BACKGROUND,
1222
1223   ED_NUM_DRAWING_AREAS
1224 };
1225
1226 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
1227 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
1228
1229
1230 // ----------------------------------------------------------------------------
1231 // some internally used definitions
1232 // ----------------------------------------------------------------------------
1233
1234 // values for CopyLevelToUndoBuffer()
1235 #define UNDO_IMMEDIATE                  0
1236 #define UNDO_ACCUMULATE                 1
1237
1238 // values for scrollbars
1239 #define ED_SCROLL_NO                    0
1240 #define ED_SCROLL_LEFT                  1
1241 #define ED_SCROLL_RIGHT                 2
1242 #define ED_SCROLL_UP                    4
1243 #define ED_SCROLL_DOWN                  8
1244
1245 // screens in the level editor
1246 #define ED_MODE_DRAWING                 0
1247 #define ED_MODE_LEVELCONFIG             1
1248 #define ED_MODE_PROPERTIES              2
1249 #define ED_MODE_PALETTE                 3
1250
1251 // sub-screens in the global settings section
1252 #define ED_MODE_LEVELCONFIG_LEVEL       ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
1253 #define ED_MODE_LEVELCONFIG_LEVELSET    ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET
1254 #define ED_MODE_LEVELCONFIG_EDITOR      ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR
1255 #define ED_MODE_LEVELCONFIG_ENGINE      ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
1256
1257 // sub-screens in the element properties section
1258 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1259 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1260 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1261 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1262 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1263
1264 // how many steps can be cancelled
1265 #define NUM_UNDO_STEPS                  (64 + 1)
1266
1267 // values for elements with score for certain actions
1268 #define MIN_SCORE                       0
1269 #define MAX_SCORE                       999
1270
1271 // values for elements with count for collecting
1272 #define MIN_COLLECT_COUNT               0
1273 #define MAX_COLLECT_COUNT               999
1274
1275 // values for random placement
1276 #define RANDOM_USE_PERCENTAGE           0
1277 #define RANDOM_USE_QUANTITY             1
1278
1279 // values for level set save mode
1280 #define LEVELSET_SAVE_MODE_UPDATE       0
1281 #define LEVELSET_SAVE_MODE_CREATE       1
1282
1283 // default value for element tile size in drawing area
1284 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1285 #define DEFAULT_EDITOR_TILESIZE_MM      TILESIZE
1286
1287
1288 // ----------------------------------------------------------------------------
1289 // some internally used data structure definitions
1290 // ----------------------------------------------------------------------------
1291
1292 static struct
1293 {
1294   int graphic;
1295   int gadget_id;
1296   struct XYTileSize *pos;
1297   int gadget_type;
1298   char *infotext;
1299   char shortcut;
1300 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1301 {
1302   // note: some additional characters are already reserved for "cheat mode"
1303   // shortcuts (":XYZ" style) -- for details, see "events.c"
1304
1305   // ---------- toolbox control buttons ---------------------------------------
1306
1307   {
1308     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1309     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1310     "Draw single items",                        's'
1311   },
1312   {
1313     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1314     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1315     "Draw connected items",                     'd'
1316   },
1317   {
1318     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1319     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1320     "Draw lines",                               'l'
1321   },
1322   {
1323     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1324     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1325     "Draw arcs",                                'a'
1326   },
1327   {
1328     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1329     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1330     "Draw outline rectangles",                  'r'
1331   },
1332   {
1333     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1334     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1335     "Draw filled rectangles",                   'R'
1336   },
1337   {
1338     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1339     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1340     "Wrap (rotate) level up",                   0
1341   },
1342   {
1343     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1344     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1345     "Enter text elements",                      't'
1346   },
1347   {
1348     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1349     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1350     "Flood fill",                               'f'
1351   },
1352   {
1353     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1354     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1355     "Wrap (rotate) level left",                 0
1356   },
1357   {
1358     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1359     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1360     "Zoom level tile size",                     '+'
1361   },
1362   {
1363     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1364     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1365     "Wrap (rotate) level right",                0
1366   },
1367   {
1368     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1369     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1370     "Random element placement",                 0
1371   },
1372   {
1373     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1374     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1375     "Grab brush",                               'b'
1376   },
1377   {
1378     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1379     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1380     "Wrap (rotate) level down",                 0
1381   },
1382   {
1383     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1384     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1385     "Pick drawing element",                     ','
1386   },
1387
1388   // ---------- level control buttons -----------------------------------------
1389
1390   {
1391     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1392     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1393     "Undo/redo last operation",                 'u'
1394   },
1395   {
1396     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_CONF,
1397     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1398     "Level and editor settings",                'I'
1399   },
1400   {
1401     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1402     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1403     "Save level",                               'S'
1404   },
1405   {
1406     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1407     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1408     "Clear level",                              'C'
1409   },
1410   {
1411     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1412     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1413     "Test level",                               'T'
1414   },
1415   {
1416     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1417     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1418     "Exit level editor",                        'E'
1419   },
1420
1421   // ---------- CE and GE control buttons -------------------------------------
1422
1423   {
1424     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1425     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1426     "Copy settings from other element",         0
1427   },
1428   {
1429     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1430     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1431     "Copy settings to other element",           0
1432   },
1433   {
1434     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1435     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1436     "Exchange element with other element",      0
1437   },
1438   {
1439     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1440     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1441     "Copy settings from this element",          0
1442   },
1443   {
1444     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1445     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1446     "Paste settings to this element",           0
1447   },
1448
1449   // ---------- palette control buttons ---------------------------------------
1450
1451   {
1452     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1453     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1454     "Properties of drawing element",            'p'
1455   },
1456   {
1457     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1458     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1459     "Properties of drawing element 1",          '1'
1460   },
1461   {
1462     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1463     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1464     "Properties of drawing element 2",          '2'
1465   },
1466   {
1467     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1468     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1469     "Properties of drawing element 3",          '3'
1470   },
1471   {
1472     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1473     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1474     "Show list of elements",                    'e'
1475   }
1476 };
1477
1478 static int random_placement_value = 10;
1479 static int random_placement_method = RANDOM_USE_QUANTITY;
1480 static int random_placement_background_element = EL_SAND;
1481 static boolean random_placement_background_restricted = FALSE;
1482 static boolean stick_element_properties_window = FALSE;
1483 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1484 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1485 static struct ElementChangeInfo custom_element_change;
1486 static struct ElementGroupInfo group_element_info;
1487 static struct ElementInfo custom_element;
1488
1489 static char levelset_name[MAX_LEVEL_NAME_LEN + 1];
1490 static char levelset_author[MAX_LEVEL_AUTHOR_LEN + 1];
1491 static int levelset_num_levels = 100;
1492 static boolean levelset_use_levelset_artwork = FALSE;
1493 static boolean levelset_copy_level_template = FALSE;
1494 static int levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
1495
1496 static struct
1497 {
1498   int gadget_type_id;
1499   int x, y;
1500   int min_value, max_value;
1501   int gadget_id_down, gadget_id_up;
1502   int gadget_id_text;
1503   int gadget_id_align;
1504   int *value;
1505   char *text_above, *text_left, *text_right;
1506 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1507 {
1508   // ---------- current level number ------------------------------------------
1509
1510   {
1511     ED_COUNTER_ID_SELECT_LEVEL,
1512     -1, -1,     // these values are not constant, but can change at runtime
1513     1,                                  100,
1514     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1515     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1516     &level_nr,
1517     NULL,                               NULL, NULL
1518   },
1519
1520   // ---------- level and editor settings -------------------------------------
1521
1522   {
1523     ED_COUNTER_ID_LEVEL_XSIZE,
1524     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1525     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1526     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1527     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1528     &level.fieldx,
1529     "Playfield size:",                  NULL, "Width",
1530   },
1531   {
1532     ED_COUNTER_ID_LEVEL_YSIZE,
1533     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1534     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1535     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1536     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1537     &level.fieldy,
1538     NULL,                               " ", "Height",
1539   },
1540   {
1541     ED_COUNTER_ID_LEVEL_GEMSLIMIT,
1542     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1543     0,                                  999,
1544     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1545     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1546     &level.gems_needed,
1547     NULL,                               "Number of gems to collect:", NULL
1548   },
1549   {
1550     ED_COUNTER_ID_LEVEL_TIMELIMIT,
1551     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
1552     0,                                  9999,
1553     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1554     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1555     &level.time,
1556     "Time or step limit to solve level:", NULL, NULL
1557   },
1558   {
1559     ED_COUNTER_ID_LEVEL_TIMESCORE,
1560     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
1561     0,                                  999,
1562     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1563     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1564     &level.score[SC_TIME_BONUS],
1565     "Score for time or steps left:",    NULL, NULL
1566   },
1567   {
1568     ED_COUNTER_ID_LEVEL_RANDOM_SEED,
1569     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(13),
1570     0,                                  9999,
1571     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1572     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1573     &level.random_seed,
1574     NULL,                               "Random seed:", "(0 => random)"
1575   },
1576   {
1577     ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
1578     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1579     1,                                  MAX_LEVELS,
1580     GADGET_ID_LEVELSET_NUM_LEVELS_DOWN, GADGET_ID_LEVELSET_NUM_LEVELS_UP,
1581     GADGET_ID_LEVELSET_NUM_LEVELS_TEXT, GADGET_ID_NONE,
1582     &levelset_num_levels,
1583     "Number of levels:",                NULL, NULL,
1584   },
1585   {
1586     ED_COUNTER_ID_LEVEL_RANDOM,
1587     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1588     1,                                  100,
1589     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1590     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1591     &random_placement_value,
1592     "Random element placement:",        NULL, "in"
1593   },
1594   {
1595     ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
1596     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1597     50,                                 500,
1598     GADGET_ID_BD_CYCLE_DELAY_MS_DOWN,   GADGET_ID_BD_CYCLE_DELAY_MS_UP,
1599     GADGET_ID_BD_CYCLE_DELAY_MS_TEXT,   GADGET_ID_NONE,
1600     &level.bd_cycle_delay_ms,
1601     NULL,                               NULL, "Game cycle delay (ms)"
1602   },
1603   {
1604     ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
1605     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1606     0,                                  32,
1607     GADGET_ID_BD_CYCLE_DELAY_C64_DOWN,  GADGET_ID_BD_CYCLE_DELAY_C64_UP,
1608     GADGET_ID_BD_CYCLE_DELAY_C64_TEXT,  GADGET_ID_NONE,
1609     &level.bd_cycle_delay_c64,
1610     NULL,                               NULL, "Game cycle delay (C64-style)"
1611   },
1612   {
1613     ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
1614     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1615     1,                                  40,
1616     GADGET_ID_BD_HATCHING_DELAY_CYCLES_DOWN,    GADGET_ID_BD_HATCHING_DELAY_CYCLES_UP,
1617     GADGET_ID_BD_HATCHING_DELAY_CYCLES_TEXT,    GADGET_ID_NONE,
1618     &level.bd_hatching_delay_cycles,
1619     NULL,                               NULL, "Hatching delay (cycles)"
1620   },
1621   {
1622     ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
1623     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1624     1,                                  40,
1625     GADGET_ID_BD_HATCHING_DELAY_SECONDS_DOWN,   GADGET_ID_BD_HATCHING_DELAY_SECONDS_UP,
1626     GADGET_ID_BD_HATCHING_DELAY_SECONDS_TEXT,   GADGET_ID_NONE,
1627     &level.bd_hatching_delay_seconds,
1628     NULL,                               NULL, "Hatching delay (seconds)"
1629   },
1630
1631   // ---------- element settings: configure (various elements) ----------------
1632
1633   {
1634     ED_COUNTER_ID_BD_PUSHING_PROB,
1635     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1636     0,                                  100,
1637     GADGET_ID_BD_PUSHING_PROB_DOWN,     GADGET_ID_BD_PUSHING_PROB_UP,
1638     GADGET_ID_BD_PUSHING_PROB_TEXT,     GADGET_ID_NONE,
1639     &level.bd_pushing_prob,
1640     NULL,                               NULL, "Push probability"
1641   },
1642   {
1643     ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
1644     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1645     0,                                  100,
1646     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_DOWN,  GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_UP,
1647     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_TEXT,  GADGET_ID_NONE,
1648     &level.bd_pushing_prob_with_sweet,
1649     NULL,                               NULL, "Push probability with sweet"
1650   },
1651   {
1652     ED_COUNTER_ID_ELEMENT_VALUE1,
1653     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1654     MIN_SCORE,                          MAX_SCORE,
1655     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1656     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1657     NULL,                               // will be set when used
1658     NULL,                               NULL, NULL
1659   },
1660   {
1661     ED_COUNTER_ID_ELEMENT_VALUE2,
1662     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1663     MIN_SCORE,                          MAX_SCORE,
1664     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1665     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1666     NULL,                               // will be set when used
1667     NULL,                               NULL, NULL
1668   },
1669   {
1670     ED_COUNTER_ID_ELEMENT_VALUE3,
1671     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1672     MIN_SCORE,                          MAX_SCORE,
1673     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1674     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1675     NULL,                               // will be set when used
1676     NULL,                               NULL, NULL
1677   },
1678   {
1679     ED_COUNTER_ID_ELEMENT_VALUE4,
1680     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1681     MIN_SCORE,                          MAX_SCORE,
1682     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1683     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1684     NULL,                               // will be set when used
1685     NULL,                               NULL, NULL
1686   },
1687   {
1688     ED_COUNTER_ID_YAMYAM_CONTENT,
1689     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1690     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1691     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1692     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1693     &level.num_yamyam_contents,
1694     NULL,                               NULL, "Number of content areas"
1695   },
1696   {
1697     ED_COUNTER_ID_BALL_CONTENT,
1698     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1699     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1700     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1701     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1702     &level.num_ball_contents,
1703     NULL,                               NULL, "Number of content areas"
1704   },
1705   {
1706     ED_COUNTER_ID_ANDROID_CONTENT,
1707     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1708     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1709     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1710     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1711     &level.num_android_clone_elements,
1712     NULL,                               NULL, "Number of clonable elements"
1713   },
1714   {
1715     ED_COUNTER_ID_ENVELOPE_XSIZE,
1716     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1717     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1718     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1719     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1720     NULL,                               // will be set when used
1721     NULL,                               NULL, "Width",
1722   },
1723   {
1724     ED_COUNTER_ID_ENVELOPE_YSIZE,
1725     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1726     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1727     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1728     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1729     NULL,                               // will be set when used
1730     NULL,                               " ", "Height",
1731   },
1732   {
1733     ED_COUNTER_ID_INVENTORY_SIZE,
1734     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1735     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1736     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1737     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1738     &level.initial_inventory_size[0],
1739     NULL,                               NULL, "Number of inventory elements"
1740   },
1741   {
1742     ED_COUNTER_ID_MM_BALL_CONTENT,
1743     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1744     MIN_ELEMENTS_IN_GROUP,              MAX_MM_BALL_CONTENTS,
1745     GADGET_ID_MM_BALL_CONTENT_DOWN,     GADGET_ID_MM_BALL_CONTENT_UP,
1746     GADGET_ID_MM_BALL_CONTENT_TEXT,     GADGET_ID_NONE,
1747     &level.num_mm_ball_contents,
1748     NULL,                               NULL, "Number of content elements"
1749   },
1750
1751   // ---------- element settings: configure 1 (custom elements) ---------------
1752
1753   {
1754     ED_COUNTER_ID_CUSTOM_SCORE,
1755     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1756     MIN_SCORE,                          MAX_SCORE,
1757     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1758     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1759     &custom_element.collect_score_initial,
1760     NULL,                               "CE score", " "
1761   },
1762   {
1763     ED_COUNTER_ID_CUSTOM_GEMCOUNT,
1764     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1765     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1766     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1767     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1768     &custom_element.collect_count_initial,
1769     NULL,                               "CE count", NULL
1770   },
1771   {
1772     ED_COUNTER_ID_CUSTOM_VALUE_FIX,
1773     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1774     0,                                  9999,
1775     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1776     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1777     &custom_element.ce_value_fixed_initial,
1778     NULL,                               "CE value", NULL
1779   },
1780   {
1781     ED_COUNTER_ID_CUSTOM_VALUE_RND,
1782     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1783     0,                                  9999,
1784     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1785     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1786     &custom_element.ce_value_random_initial,
1787     NULL,                               "+random", NULL
1788   },
1789   {
1790     ED_COUNTER_ID_PUSH_DELAY_FIX,
1791     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1792     0,                                  999,
1793     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1794     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1795     &custom_element.push_delay_fixed,
1796     NULL,                               "Push delay", NULL
1797   },
1798   {
1799     ED_COUNTER_ID_PUSH_DELAY_RND,
1800     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1801     0,                                  999,
1802     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1803     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1804     &custom_element.push_delay_random,
1805     NULL,                               "+random", NULL
1806   },
1807   {
1808     ED_COUNTER_ID_DROP_DELAY_FIX,
1809     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1810     0,                                  999,
1811     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1812     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1813     &custom_element.drop_delay_fixed,
1814     NULL,                               "Drop delay", NULL
1815   },
1816   {
1817     ED_COUNTER_ID_DROP_DELAY_RND,
1818     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1819     0,                                  999,
1820     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1821     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1822     &custom_element.drop_delay_random,
1823     NULL,                               "+random", NULL
1824   },
1825
1826   // ---------- element settings: configure 2 (custom elements) ---------------
1827
1828   {
1829     ED_COUNTER_ID_MOVE_DELAY_FIX,
1830     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1831     0,                                  999,
1832     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1833     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1834     &custom_element.move_delay_fixed,
1835     NULL,                               "Move delay", NULL
1836   },
1837   {
1838     ED_COUNTER_ID_MOVE_DELAY_RND,
1839     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1840     0,                                  999,
1841     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1842     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1843     &custom_element.move_delay_random,
1844     NULL,                               "+random", NULL
1845   },
1846   {
1847     ED_COUNTER_ID_STEP_DELAY_FIX,
1848     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1849     0,                                  999,
1850     GADGET_ID_STEP_DELAY_FIX_DOWN,      GADGET_ID_STEP_DELAY_FIX_UP,
1851     GADGET_ID_STEP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1852     &custom_element.step_delay_fixed,
1853     NULL,                               "Step delay", NULL
1854   },
1855   {
1856     ED_COUNTER_ID_STEP_DELAY_RND,
1857     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1858     0,                                  999,
1859     GADGET_ID_STEP_DELAY_RND_DOWN,      GADGET_ID_STEP_DELAY_RND_UP,
1860     GADGET_ID_STEP_DELAY_RND_TEXT,      GADGET_ID_STEP_DELAY_FIX_UP,
1861     &custom_element.step_delay_random,
1862     NULL,                               "+random", NULL
1863   },
1864   {
1865     ED_COUNTER_ID_EXPLOSION_DELAY,
1866     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1867     0,                                  999,
1868     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1869     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1870     &custom_element.explosion_delay,
1871     NULL,                               "Explosion delay", NULL
1872   },
1873   {
1874     ED_COUNTER_ID_IGNITION_DELAY,
1875     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
1876     0,                                  999,
1877     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1878     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1879     &custom_element.ignition_delay,
1880     NULL,                               "Ignition delay", "(by fire)"
1881   },
1882
1883   // ---------- element settings: configure (group elements) ------------------
1884
1885   {
1886     ED_COUNTER_ID_GROUP_CONTENT,
1887     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1888     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1889     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1890     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1891     &group_element_info.num_elements,
1892     NULL,                               NULL, "Number of elements in group"
1893   },
1894
1895   // ---------- element settings: advanced (custom elements) ------------------
1896
1897   {
1898     ED_COUNTER_ID_CHANGE_DELAY_FIX,
1899     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1900     0,                                  999,
1901     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1902     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1903     &custom_element_change.delay_fixed,
1904     NULL,                               "CE delay", NULL,
1905   },
1906   {
1907     ED_COUNTER_ID_CHANGE_DELAY_RND,
1908     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1909     0,                                  999,
1910     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1911     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1912     &custom_element_change.delay_random,
1913     NULL,                               "+random", NULL
1914   },
1915   {
1916     ED_COUNTER_ID_CHANGE_CONT_RND,
1917     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1918     0,                                  100,
1919     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1920     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1921     &custom_element_change.random_percentage,
1922     NULL,                               "Use random replace:", "%"
1923   },
1924 };
1925
1926 static struct
1927 {
1928   int gadget_type_id;
1929   int x, y;
1930   int gadget_id;
1931   int size;
1932   char *value;
1933   char *text_above, *infotext;
1934 } textinput_info[ED_NUM_TEXTINPUT] =
1935 {
1936   {
1937     ED_TEXTINPUT_ID_LEVEL_NAME,
1938     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1939     GADGET_ID_LEVEL_NAME,
1940     MAX_LEVEL_NAME_LEN,
1941     level.name,
1942     "Title:", "Title for this level"
1943   },
1944   {
1945     ED_TEXTINPUT_ID_LEVEL_AUTHOR,
1946     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1947     GADGET_ID_LEVEL_AUTHOR,
1948     MAX_LEVEL_AUTHOR_LEN,
1949     level.author,
1950     "Author:", "Author for this level"
1951   },
1952   {
1953     ED_TEXTINPUT_ID_LEVELSET_NAME,
1954     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1955     GADGET_ID_LEVELSET_NAME,
1956     MAX_LEVEL_NAME_LEN,
1957     levelset_name,
1958     "Title:", "Title for this or new level set"
1959   },
1960   {
1961     ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
1962     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1963     GADGET_ID_LEVELSET_AUTHOR,
1964     MAX_LEVEL_AUTHOR_LEN,
1965     levelset_author,
1966     "Author:", "Author for this or new level set"
1967   },
1968   {
1969     ED_TEXTINPUT_ID_ELEMENT_NAME,
1970     -1, -1,     // these values are not constant, but can change at runtime
1971     GADGET_ID_ELEMENT_NAME,
1972     MAX_ELEMENT_NAME_LEN - 2,           // currently 2 chars less editable
1973     custom_element.description,
1974     NULL, "Element name"
1975   }
1976 };
1977
1978 static struct
1979 {
1980   int gadget_type_id;
1981   int x, y;
1982   int gadget_id;
1983   int xsize, ysize;
1984   char *value;
1985   char *text_above, *text_above_cropped, *infotext;
1986 } textarea_info[ED_NUM_TEXTAREAS] =
1987 {
1988   {
1989     ED_TEXTAREA_ID_ENVELOPE_INFO,
1990     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1991     GADGET_ID_ENVELOPE_INFO,
1992     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1993     NULL,
1994     "Envelope Content:", "Envelope Content (cropped):", "Envelope Content"
1995   }
1996 };
1997
1998 static struct ValueTextInfo options_time_or_steps[] =
1999 {
2000   { 0,                          "seconds"                       },
2001   { 1,                          "steps"                         },
2002
2003   { -1,                         NULL                            }
2004 };
2005
2006 static struct ValueTextInfo options_time_score_base[] =
2007 {
2008   { 1,                          "per second/step"               },
2009   { 10,                         "per 10 seconds/steps"          },
2010
2011   { -1,                         NULL                            }
2012 };
2013
2014 static struct ValueTextInfo options_game_engine_type[] =
2015 {
2016   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
2017   { GAME_ENGINE_TYPE_BD,        "Boulder Dash"                  },
2018   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
2019   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
2020   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
2021
2022   { -1,                         NULL                            }
2023 };
2024
2025 static struct ValueTextInfo options_levelset_save_mode[] =
2026 {
2027   { LEVELSET_SAVE_MODE_UPDATE,  "Update this level set"         },
2028   { LEVELSET_SAVE_MODE_CREATE,  "Create new level set"          },
2029
2030   { -1,                         NULL                            }
2031 };
2032
2033 static struct ValueTextInfo options_wind_direction[] =
2034 {
2035   { MV_START_NONE,              "none"                          },
2036   { MV_START_LEFT,              "left"                          },
2037   { MV_START_RIGHT,             "right"                         },
2038   { MV_START_UP,                "up"                            },
2039   { MV_START_DOWN,              "down"                          },
2040
2041   { -1,                         NULL                            }
2042 };
2043
2044 static struct ValueTextInfo options_player_speed[] =
2045 {
2046   { 0,                          "frozen"                        },
2047   { 1,                          "very slow"                     },
2048   { 2,                          "slow"                          },
2049   { 4,                          "normal"                        },
2050   { 8,                          "fast"                          },
2051   { 16,                         "very fast"                     },
2052   { 32,                         "ultrafast"                     },
2053
2054   { -1,                         NULL                            }
2055 };
2056
2057 static struct ValueTextInfo options_access_type[] =
2058 {
2059   { EP_WALKABLE,                "walkable"                      },
2060   { EP_PASSABLE,                "passable"                      },
2061
2062   { -1,                         NULL                            }
2063 };
2064
2065 static struct ValueTextInfo options_access_layer[] =
2066 {
2067   { EP_ACCESSIBLE_OVER,         "over"                          },
2068   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
2069   { EP_ACCESSIBLE_UNDER,        "under"                         },
2070
2071   { -1,                         NULL                            }
2072 };
2073
2074 static struct ValueTextInfo options_access_protected[] =
2075 {
2076   { 0,                          "unprotected"                   },
2077   { 1,                          "protected"                     },
2078
2079   { -1,                         NULL                            }
2080 };
2081
2082 static struct ValueTextInfo options_access_direction[] =
2083 {
2084   { MV_NO_DIRECTION,            "no direction"                  },
2085   { MV_LEFT,                    "left"                          },
2086   { MV_RIGHT,                   "right"                         },
2087   { MV_UP,                      "up"                            },
2088   { MV_DOWN,                    "down"                          },
2089   { MV_LEFT  | MV_UP,           "left + up"                     },
2090   { MV_LEFT  | MV_DOWN,         "left + down"                   },
2091   { MV_RIGHT | MV_UP,           "right + up"                    },
2092   { MV_RIGHT | MV_DOWN,         "right + down"                  },
2093   { MV_HORIZONTAL,              "horizontal"                    },
2094   { MV_VERTICAL,                "vertical"                      },
2095   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
2096   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
2097   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
2098   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
2099   { MV_ALL_DIRECTIONS,          "all directions"                },
2100
2101   { -1,                         NULL                            }
2102 };
2103
2104 static struct ValueTextInfo options_walk_to_action[] =
2105 {
2106   { EP_DIGGABLE,                "diggable"                      },
2107   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
2108   { EP_DROPPABLE,               "collectible & droppable"       },
2109   { EP_THROWABLE,               "collectible & throwable"       },
2110   { EP_PUSHABLE,                "pushable"                      },
2111
2112   { -1,                         NULL                            }
2113 };
2114
2115 static struct ValueTextInfo options_move_pattern[] =
2116 {
2117   { MV_LEFT,                    "left"                          },
2118   { MV_RIGHT,                   "right"                         },
2119   { MV_UP,                      "up"                            },
2120   { MV_DOWN,                    "down"                          },
2121   { MV_HORIZONTAL,              "horizontal"                    },
2122   { MV_VERTICAL,                "vertical"                      },
2123   { MV_ALL_DIRECTIONS,          "all directions"                },
2124   { MV_WIND_DIRECTION,          "wind direction"                },
2125   { MV_TOWARDS_PLAYER,          "towards player"                },
2126   { MV_AWAY_FROM_PLAYER,        "away from player"              },
2127   { MV_ALONG_LEFT_SIDE,         "along left side"               },
2128   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
2129   { MV_TURNING_LEFT,            "turning left"                  },
2130   { MV_TURNING_RIGHT,           "turning right"                 },
2131   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
2132   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
2133   { MV_TURNING_RANDOM,          "turning random"                },
2134   { MV_MAZE_RUNNER,             "maze runner style"             },
2135   { MV_MAZE_HUNTER,             "maze hunter style"             },
2136   { MV_WHEN_PUSHED,             "when pushed"                   },
2137   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
2138
2139   { -1,                         NULL                            }
2140 };
2141
2142 static struct ValueTextInfo options_move_direction[] =
2143 {
2144   { MV_START_AUTOMATIC,         "automatic"                     },
2145   { MV_START_LEFT,              "left"                          },
2146   { MV_START_RIGHT,             "right"                         },
2147   { MV_START_UP,                "up"                            },
2148   { MV_START_DOWN,              "down"                          },
2149   { MV_START_RANDOM,            "random"                        },
2150   { MV_START_PREVIOUS,          "previous"                      },
2151
2152   { -1,                         NULL                            }
2153 };
2154
2155 static struct ValueTextInfo options_move_stepsize[] =
2156 {
2157   { 0,                          "not moving"                    },
2158   { 1,                          "very slow"                     },
2159   { 2,                          "slow"                          },
2160   { 4,                          "normal"                        },
2161   { 8,                          "fast"                          },
2162   { 16,                         "very fast"                     },
2163   { 32,                         "even faster"                   },
2164
2165   { -1,                         NULL                            }
2166 };
2167
2168 static struct ValueTextInfo options_move_leave_type[] =
2169 {
2170   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
2171   { LEAVE_TYPE_LIMITED,         "change it to"                  },
2172
2173   { -1,                         NULL                            }
2174 };
2175
2176 static struct ValueTextInfo options_smash_targets[] =
2177 {
2178   { EP_CAN_SMASH_PLAYER,        "player"                        },
2179 #if 0
2180   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
2181 #endif
2182   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
2183
2184   { -1,                         NULL                            }
2185 };
2186
2187 static struct ValueTextInfo options_slippery_type[] =
2188 {
2189   { SLIPPERY_ANY_RANDOM,        "random"                        },
2190   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
2191   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
2192   { SLIPPERY_ONLY_LEFT,         "only left"                     },
2193   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
2194
2195   { -1,                         NULL                            }
2196 };
2197
2198 static struct ValueTextInfo options_deadliness[] =
2199 {
2200   { EP_DONT_RUN_INTO,           "running into"                  },
2201   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
2202   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
2203   { EP_DONT_TOUCH,              "touching"                      },
2204
2205   { -1,                         NULL                            }
2206 };
2207
2208 static struct ValueTextInfo options_explosion_type[] =
2209 {
2210   { EXPLODES_3X3,               "3x3"                           },
2211   { EXPLODES_CROSS,             "3+3"                           },
2212   { EXPLODES_1X1,               "1x1"                           },
2213
2214   { -1,                         NULL                            }
2215 };
2216
2217 static struct ValueTextInfo options_time_units[] =
2218 {
2219   { 1,                          "frames"                        },
2220   { FRAMES_PER_SECOND,          "seconds"                       },
2221
2222   { -1,                         NULL                            }
2223 };
2224
2225 static struct ValueTextInfo options_change_direct_action[] =
2226 {
2227   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
2228   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
2229   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
2230   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
2231   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
2232   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
2233   { CE_LEFT_BY_PLAYER,          "left by player"                },
2234   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
2235   { CE_SWITCHED,                "switched"                      },
2236   { CE_HITTING_SOMETHING,       "hitting something"             },
2237   { CE_HIT_BY_SOMETHING,        "hit by something"              },
2238 #if 0
2239   { CE_BLOCKED,                 "blocked"                       },
2240 #endif
2241   { CE_IMPACT,                  "impact (on something)"         },
2242   { CE_SMASHED,                 "smashed (from above)"          },
2243 #if 0
2244   { CE_VALUE_CHANGES,           "CE value changes"              },
2245   { CE_SCORE_CHANGES,           "CE score changes"              },
2246 #endif
2247   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
2248   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
2249   { CE_UNDEFINED,               " "                             },
2250   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2251   { CE_CLICKED_BY_MOUSE,        "clicked by mouse"              },
2252   { CE_PRESSED_BY_MOUSE,        "pressed by mouse"              },
2253   { CE_UNDEFINED,               " "                             },
2254   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2255   { CE_NEXT_TO_PLAYER,          "next to player"                },
2256
2257   { -1,                         NULL                            }
2258 };
2259
2260 static struct ValueTextInfo options_change_other_action[] =
2261 {
2262   { CE_PLAYER_TOUCHES_X,        "player touches"                },
2263   { CE_PLAYER_PRESSES_X,        "player presses"                },
2264   { CE_PLAYER_SWITCHES_X,       "player switches"               },
2265   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
2266   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
2267   { CE_PLAYER_ENTERS_X,         "player enters"                 },
2268   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
2269   { CE_PLAYER_DIGS_X,           "player digs"                   },
2270   { CE_PLAYER_COLLECTS_X,       "player collects"               },
2271   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
2272   { CE_TOUCHING_X,              "touching"                      },
2273   { CE_HITTING_X,               "hitting"                       },
2274   { CE_DIGGING_X,               "digging"                       },
2275   { CE_HIT_BY_X,                "hit by"                        },
2276   { CE_SWITCH_OF_X,             "switch of"                     },
2277   { CE_CHANGE_OF_X,             "change by page of"             },
2278   { CE_EXPLOSION_OF_X,          "explosion of"                  },
2279   { CE_MOVE_OF_X,               "move of"                       },
2280   { CE_CREATION_OF_X,           "creation of"                   },
2281   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
2282   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
2283   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
2284   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
2285   { CE_UNDEFINED,               " "                             },
2286   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2287   { CE_MOUSE_CLICKED_ON_X,      "mouse clicked on"              },
2288   { CE_MOUSE_PRESSED_ON_X,      "mouse pressed on"              },
2289   { CE_UNDEFINED,               " "                             },
2290   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2291   { CE_PLAYER_NEXT_TO_X,        "player next to"                },
2292   { CE_NEXT_TO_X,               "next to"                       },
2293
2294   { -1,                         NULL                            }
2295 };
2296
2297 static struct ValueTextInfo options_change_trigger_side[] =
2298 {
2299   { CH_SIDE_LEFT,               "left"                          },
2300   { CH_SIDE_RIGHT,              "right"                         },
2301   { CH_SIDE_TOP,                "top"                           },
2302   { CH_SIDE_BOTTOM,             "bottom"                        },
2303   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
2304   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
2305   { CH_SIDE_ANY,                "any"                           },
2306
2307   { -1,                         NULL                            }
2308 };
2309
2310 static struct ValueTextInfo options_change_trigger_player[] =
2311 {
2312   { CH_PLAYER_1,                "1"                             },
2313   { CH_PLAYER_2,                "2"                             },
2314   { CH_PLAYER_3,                "3"                             },
2315   { CH_PLAYER_4,                "4"                             },
2316   { CH_PLAYER_ANY,              "any"                           },
2317
2318   { -1,                         NULL                            }
2319 };
2320
2321 static struct ValueTextInfo options_change_trigger_page[] =
2322 {
2323   { (1u << 0),                  "1"                             },
2324   { (1u << 1),                  "2"                             },
2325   { (1u << 2),                  "3"                             },
2326   { (1u << 3),                  "4"                             },
2327   { (1u << 4),                  "5"                             },
2328   { (1u << 5),                  "6"                             },
2329   { (1u << 6),                  "7"                             },
2330   { (1u << 7),                  "8"                             },
2331   { (1u << 8),                  "9"                             },
2332   { (1u << 9),                  "10"                            },
2333   { (1u << 10),                 "11"                            },
2334   { (1u << 11),                 "12"                            },
2335   { (1u << 12),                 "13"                            },
2336   { (1u << 13),                 "14"                            },
2337   { (1u << 14),                 "15"                            },
2338   { (1u << 15),                 "16"                            },
2339   { (1u << 16),                 "17"                            },
2340   { (1u << 17),                 "18"                            },
2341   { (1u << 18),                 "19"                            },
2342   { (1u << 19),                 "20"                            },
2343   { (1u << 20),                 "21"                            },
2344   { (1u << 21),                 "22"                            },
2345   { (1u << 22),                 "23"                            },
2346   { (1u << 23),                 "24"                            },
2347   { (1u << 24),                 "25"                            },
2348   { (1u << 25),                 "26"                            },
2349   { (1u << 26),                 "27"                            },
2350   { (1u << 27),                 "28"                            },
2351   { (1u << 28),                 "29"                            },
2352   { (1u << 29),                 "30"                            },
2353   { (1u << 30),                 "31"                            },
2354   { (1u << 31),                 "32"                            },
2355   { CH_PAGE_ANY,                "any"                           },
2356
2357   { -1,                         NULL                            }
2358 };
2359
2360 static struct ValueTextInfo options_change_replace_when[] =
2361 {
2362   { CP_WHEN_EMPTY,              "empty"                         },
2363   { CP_WHEN_WALKABLE,           "walkable"                      },
2364   { CP_WHEN_DIGGABLE,           "diggable"                      },
2365   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
2366   { CP_WHEN_REMOVABLE,          "removable"                     },
2367   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
2368
2369   { -1,                         NULL                            }
2370 };
2371
2372 static struct ValueTextInfo options_action_type[] =
2373 {
2374   { CA_NO_ACTION,               "no action"                     },
2375   { CA_UNDEFINED,               " "                             },
2376   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
2377   { CA_RESTART_LEVEL,           "restart level"                 },
2378   { CA_SHOW_ENVELOPE,           "show envelope"                 },
2379   { CA_SET_LEVEL_TIME,          "set time"                      },
2380   { CA_SET_LEVEL_SCORE,         "set score"                     },
2381   { CA_SET_LEVEL_GEMS,          "set gems"                      },
2382   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
2383   { CA_SET_LEVEL_RANDOM_SEED,   "set random seed"               },
2384   { CA_UNDEFINED,               " "                             },
2385   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
2386   { CA_MOVE_PLAYER,             "move player"                   },
2387   { CA_MOVE_PLAYER_NEW,         "move player new"               },
2388   { CA_EXIT_PLAYER,             "exit player"                   },
2389   { CA_KILL_PLAYER,             "kill player"                   },
2390   { CA_SET_PLAYER_KEYS,         "set keys"                      },
2391   { CA_SET_PLAYER_SPEED,        "set speed"                     },
2392   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
2393   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
2394   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
2395   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
2396   { CA_UNDEFINED,               " "                             },
2397   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
2398   { CA_SET_CE_VALUE,            "set CE value"                  },
2399   { CA_SET_CE_SCORE,            "set CE score"                  },
2400   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
2401   { CA_UNDEFINED,               " "                             },
2402   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
2403   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
2404
2405   { -1,                         NULL                            }
2406 };
2407
2408 static struct ValueTextInfo options_action_mode_none[] =
2409 {
2410   { CA_MODE_UNDEFINED,          " "                             },
2411
2412   { -1,                         NULL                            }
2413 };
2414
2415 static struct ValueTextInfo options_action_mode_assign[] =
2416 {
2417   { CA_MODE_SET,                "="                             },
2418
2419   { -1,                         NULL                            }
2420 };
2421
2422 static struct ValueTextInfo options_action_mode_add_remove[] =
2423 {
2424   { CA_MODE_ADD,                "+"                             },
2425   { CA_MODE_SUBTRACT,           "-"                             },
2426
2427   { -1,                         NULL                            }
2428 };
2429
2430 static struct ValueTextInfo options_action_mode_calculate[] =
2431 {
2432   { CA_MODE_SET,                "="                             },
2433   { CA_MODE_ADD,                "+"                             },
2434   { CA_MODE_SUBTRACT,           "-"                             },
2435   { CA_MODE_MULTIPLY,           "*"                             },
2436   { CA_MODE_DIVIDE,             "/"                             },
2437   { CA_MODE_MODULO,             "%"                             },
2438
2439   { -1,                         NULL                            }
2440 };
2441
2442 static struct ValueTextInfo options_action_arg_none[] =
2443 {
2444   { CA_ARG_UNDEFINED,           "         "                     },
2445
2446   { -1,                         NULL                            }
2447 };
2448
2449 static struct ValueTextInfo options_action_arg_player[] =
2450 {
2451   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2452   { CA_ARG_PLAYER_1,            "1"                             },
2453   { CA_ARG_PLAYER_2,            "2"                             },
2454   { CA_ARG_PLAYER_3,            "3"                             },
2455   { CA_ARG_PLAYER_4,            "4"                             },
2456   { CA_ARG_PLAYER_ANY,          "any"                           },
2457   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2458   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2459
2460   { -1,                         NULL                            }
2461 };
2462
2463 static struct ValueTextInfo options_action_arg_number[] =
2464 {
2465   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2466   { CA_ARG_0,                   "0"                             },
2467   { CA_ARG_1,                   "1"                             },
2468   { CA_ARG_2,                   "2"                             },
2469   { CA_ARG_3,                   "3"                             },
2470   { CA_ARG_4,                   "4"                             },
2471   { CA_ARG_5,                   "5"                             },
2472   { CA_ARG_10,                  "10"                            },
2473   { CA_ARG_100,                 "100"                           },
2474   { CA_ARG_1000,                "1000"                          },
2475   { CA_ARG_UNDEFINED,           " "                             },
2476   { CA_ARG_NUMBER_MIN,          "min"                           },
2477   { CA_ARG_NUMBER_MAX,          "max"                           },
2478   { CA_ARG_UNDEFINED,           " "                             },
2479   { CA_ARG_NUMBER_RESET,        "reset"                         },
2480   { CA_ARG_UNDEFINED,           " "                             },
2481   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2482   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2483   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2484   { CA_ARG_UNDEFINED,           " "                             },
2485   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2486   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2487   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2488   { CA_ARG_UNDEFINED,           " "                             },
2489   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2490   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2491   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2492   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2493   { CA_ARG_UNDEFINED,           " "                             },
2494   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2495   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2496   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2497   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2498
2499   { -1,                         NULL                            }
2500 };
2501
2502 static struct ValueTextInfo options_action_arg_value[] =
2503 {
2504   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2505   { CA_ARG_0,                   "0"                             },
2506   { CA_ARG_1,                   "1"                             },
2507   { CA_ARG_2,                   "2"                             },
2508   { CA_ARG_3,                   "3"                             },
2509   { CA_ARG_4,                   "4"                             },
2510   { CA_ARG_5,                   "5"                             },
2511   { CA_ARG_10,                  "10"                            },
2512   { CA_ARG_100,                 "100"                           },
2513   { CA_ARG_1000,                "1000"                          },
2514   { CA_ARG_UNDEFINED,           " "                             },
2515   { CA_ARG_NUMBER_MIN,          "min"                           },
2516   { CA_ARG_NUMBER_MAX,          "max"                           },
2517   { CA_ARG_UNDEFINED,           " "                             },
2518   { CA_ARG_NUMBER_RESET,        "reset"                         },
2519   { CA_ARG_UNDEFINED,           " "                             },
2520   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2521   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2522   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2523   { CA_ARG_UNDEFINED,           " "                             },
2524   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2525   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2526   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2527   { CA_ARG_UNDEFINED,           " "                             },
2528   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2529   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2530   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2531   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2532   { CA_ARG_UNDEFINED,           " "                             },
2533   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2534   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2535   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2536   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2537   { CA_ARG_UNDEFINED,           " "                             },
2538   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2539   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2540   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2541   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2542
2543   { -1,                         NULL                            }
2544 };
2545
2546 static struct ValueTextInfo options_action_arg_envelope[] =
2547 {
2548   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2549   { CA_ARG_1,                   "1"                             },
2550   { CA_ARG_2,                   "2"                             },
2551   { CA_ARG_3,                   "3"                             },
2552   { CA_ARG_4,                   "4"                             },
2553   { CA_ARG_UNDEFINED,           " "                             },
2554   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2555   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2556   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2557   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2558
2559   { -1,                         NULL                            }
2560 };
2561
2562 static struct ValueTextInfo options_action_arg_key[] =
2563 {
2564   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2565   { CA_ARG_1,                   "1"                             },
2566   { CA_ARG_2,                   "2"                             },
2567   { CA_ARG_3,                   "3"                             },
2568   { CA_ARG_4,                   "4"                             },
2569   { CA_ARG_5,                   "5"                             },
2570   { CA_ARG_6,                   "6"                             },
2571   { CA_ARG_7,                   "7"                             },
2572   { CA_ARG_8,                   "8"                             },
2573   { CA_ARG_UNDEFINED,           " "                             },
2574   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2575   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2576   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2577   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2578
2579   { -1,                         NULL                            }
2580 };
2581
2582 static struct ValueTextInfo options_action_arg_speed[] =
2583 {
2584   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2585   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2586   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2587   { CA_ARG_SPEED_SLOW,          "slow"                          },
2588   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2589   { CA_ARG_SPEED_FAST,          "fast"                          },
2590   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2591   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2592   { CA_ARG_UNDEFINED,           " "                             },
2593   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2594   { CA_ARG_SPEED_FASTER,        "faster"                        },
2595   { CA_ARG_UNDEFINED,           " "                             },
2596   { CA_ARG_SPEED_RESET,         "reset"                         },
2597
2598   { -1,                         NULL                            }
2599 };
2600
2601 static struct ValueTextInfo options_action_arg_shield[] =
2602 {
2603   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2604   { CA_ARG_SHIELD_OFF,          "off"                           },
2605   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2606   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2607
2608   { -1,                         NULL                            }
2609 };
2610
2611 static struct ValueTextInfo options_action_arg_artwork[] =
2612 {
2613   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2614   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2615   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2616   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2617   { CA_ARG_UNDEFINED,           " "                             },
2618   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2619
2620   { -1,                         NULL                            }
2621 };
2622
2623 static struct ValueTextInfo options_action_arg_gravity[] =
2624 {
2625   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2626   { CA_ARG_GRAVITY_ON,          "on"                            },
2627   { CA_ARG_GRAVITY_OFF,         "off"                           },
2628   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2629
2630   { -1,                         NULL                            }
2631 };
2632
2633 static struct ValueTextInfo options_action_arg_direction[] =
2634 {
2635   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2636   { CA_ARG_DIRECTION_NONE,      "none"                          },
2637   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2638   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2639   { CA_ARG_DIRECTION_UP,        "up"                            },
2640   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2641   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2642   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2643
2644   { -1,                         NULL                            }
2645 };
2646
2647 static struct ValueTextInfo options_action_arg_scan_mode[] =
2648 {
2649   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2650   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2651   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2652
2653   { -1,                         NULL                            }
2654 };
2655
2656 static struct ValueTextInfo options_action_arg_inventory[] =
2657 {
2658   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2659   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2660   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2661   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2662   { CA_ARG_UNDEFINED,           " "                             },
2663   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2664   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2665   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2666   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2667   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2668   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2669   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2670   { CA_ARG_UNDEFINED,           " "                             },
2671   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2672
2673   { -1,                         NULL                            }
2674 };
2675
2676 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2677 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2678 {
2679   { -1,                         NULL                            }
2680 };
2681
2682 static struct ValueTextInfo options_group_choice_mode[] =
2683 {
2684   { ANIM_RANDOM,                "random"                        },
2685   { ANIM_LOOP,                  "loop"                          },
2686   { ANIM_LINEAR,                "linear"                        },
2687   { ANIM_PINGPONG,              "pingpong"                      },
2688   { ANIM_PINGPONG2,             "pingpong 2"                    },
2689   { ANIM_LEVEL_NR,              "level number"                  },
2690
2691   { -1,                         NULL                            }
2692 };
2693
2694 static struct ValueTextInfo options_bd_scheduling_type[] =
2695 {
2696   { GD_SCHEDULING_MILLISECONDS,   "Milliseconds"                },
2697   { GD_SCHEDULING_BD1,            "BD1"                         },
2698   { GD_SCHEDULING_BD2,            "BD2"                         },
2699   { GD_SCHEDULING_PLCK,           "Construction Kit"            },
2700   { GD_SCHEDULING_CRDR,           "Crazy Dream 7"               },
2701   { GD_SCHEDULING_BD1_ATARI,      "Atari BD1"                   },
2702   { GD_SCHEDULING_BD2_PLCK_ATARI, "Atari BD2 / PLCK"            },
2703
2704   { -1,                           NULL                          }
2705 };
2706
2707 static struct ValueTextInfo *action_arg_modes[] =
2708 {
2709   options_action_mode_none,
2710   options_action_mode_assign,
2711   options_action_mode_add_remove,
2712   options_action_mode_calculate,
2713 };
2714
2715 static struct
2716 {
2717   int value;
2718   int mode;
2719   struct ValueTextInfo *options;
2720 }
2721 action_arg_options[] =
2722 {
2723   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2724   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2725   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2726   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2727   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2728   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2729   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2730   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2731   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2732   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2733   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2734   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2735   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2736   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2737   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2738   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2739   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2740   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2741   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2742   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2743   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2744   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2745
2746   { -1,                         FALSE,  NULL                            }
2747 };
2748
2749 static struct
2750 {
2751   int gadget_type_id;
2752   int x, y;
2753   int gadget_id;
2754   int gadget_id_align;
2755   int size;     // char size of selectbox or '-1' (dynamically determined)
2756   struct ValueTextInfo *options;
2757   int *value;
2758   char *text_above, *text_left, *text_right, *infotext;
2759 } selectbox_info[ED_NUM_SELECTBOX] =
2760 {
2761   // ---------- level and editor settings -------------------------------------
2762
2763   {
2764     ED_SELECTBOX_ID_TIME_OR_STEPS,
2765     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2766     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2767     -1,
2768     options_time_or_steps,
2769     &level.use_step_counter,
2770     NULL, NULL, "(0 => no limit)",      "Select time or step limit"
2771   },
2772   {
2773     ED_SELECTBOX_ID_TIME_SCORE_BASE,
2774     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2775     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2776     -1,
2777     options_time_score_base,
2778     &level.time_score_base,
2779     NULL, NULL, NULL,                   "Select time score for 1 or 10 seconds/steps"
2780   },
2781   {
2782     ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
2783     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2784     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2785     -1,
2786     options_game_engine_type,
2787     &level.game_engine_type,
2788     NULL, "Game engine:", NULL,         "Select game engine"
2789   },
2790   {
2791     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
2792     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
2793     GADGET_ID_BD_SCHEDULING_TYPE,       GADGET_ID_NONE,
2794     -1,
2795     options_bd_scheduling_type,
2796     &level.bd_scheduling_type,
2797     NULL, "Scheduling type:", NULL,     "Select level timing"
2798   },
2799   {
2800     ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
2801     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2802     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2803     -1,
2804     options_levelset_save_mode,
2805     &levelset_save_mode,
2806     "Action:", NULL, NULL,              "Select action when saving level set"
2807   },
2808
2809   // ---------- element settings: configure (several elements) ----------------
2810
2811   {
2812     ED_SELECTBOX_ID_WIND_DIRECTION,
2813     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2814     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2815     -1,
2816     options_wind_direction,
2817     &level.wind_direction_initial,
2818     NULL, "Initial wind direction:", NULL,      "Select initial wind direction"
2819   },
2820   {
2821     ED_SELECTBOX_ID_PLAYER_SPEED,
2822     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2823     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2824     -1,
2825     options_player_speed,
2826     &level.initial_player_stepsize[0],
2827     NULL, "Initial player speed:", NULL,        "Select initial player speed"
2828   },
2829   {
2830     ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
2831     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2832     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2833     -1,
2834     options_group_choice_mode,
2835     &level.mm_ball_choice_mode,
2836     NULL, "Choice type:", NULL,         "Select type of content choice"
2837   },
2838
2839   // ---------- element settings: configure 1 (custom elements) ---------------
2840
2841   {
2842     ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
2843     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2844     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2845     -1,
2846     options_access_type,
2847     &custom_element.access_type,
2848     NULL, NULL, NULL,                   "Select type of access to this field"
2849   },
2850   {
2851     ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
2852     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2853     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2854     -1,
2855     options_access_layer,
2856     &custom_element.access_layer,
2857     NULL, NULL, NULL,                   "Select layer of access for this field"
2858   },
2859   {
2860     ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
2861     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2862     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2863     -1,
2864     options_access_protected,
2865     &custom_element.access_protected,
2866     NULL, NULL, NULL,                   "Select protected access for this field"
2867   },
2868   {
2869     ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
2870     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2871     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2872     -1,
2873     options_access_direction,
2874     &custom_element.access_direction,
2875     NULL, "from", NULL,                 "Select access direction for this field"
2876   },
2877   {
2878     ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
2879     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2880     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2881     -1,
2882     options_walk_to_action,
2883     &custom_element.walk_to_action,
2884     NULL, NULL, NULL,                   "Select diggable/collectible/pushable"
2885   },
2886
2887   // ---------- element settings: configure 2 (custom elements) ---------------
2888
2889   {
2890     ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
2891     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2892     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2893     -1,
2894     options_move_pattern,
2895     &custom_element.move_pattern,
2896     NULL, "Can move", NULL,             "Select element move pattern"
2897   },
2898   {
2899     ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
2900     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2901     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2902     -1,
2903     options_move_direction,
2904     &custom_element.move_direction_initial,
2905     NULL, "Starts moving", NULL,        "Select initial element move direction"
2906   },
2907   {
2908     ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
2909     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2910     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2911     -1,
2912     options_move_stepsize,
2913     &custom_element.move_stepsize,
2914     NULL, "Move/fall speed", NULL,      "Select speed of element movement"
2915   },
2916   {
2917     ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
2918     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2919     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2920     -1,
2921     options_move_leave_type,
2922     &custom_element.move_leave_type,
2923     // left text with leading spaces to place gadget next to "can dig" gadget
2924     // (needed because drawing area gadgets created after selectbox gadgets)
2925     // NULL, "can dig:    can", ":",    "leave behind or change element"
2926     NULL, "            Can", ":",       "Select leave behind or change element"
2927   },
2928   {
2929     ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
2930     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2931     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2932     -1,
2933     options_smash_targets,
2934     &custom_element.smash_targets,
2935     NULL, "Can smash", NULL,            "Select elements that can be smashed"
2936   },
2937   {
2938     ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
2939     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2940     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2941     -1,
2942     options_slippery_type,
2943     &custom_element.slippery_type,
2944     NULL, "Slippery", NULL,             "Select where other elements fall down"
2945   },
2946   {
2947     ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
2948     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2949     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2950     -1,
2951     options_deadliness,
2952     &custom_element.deadliness,
2953     NULL, "Deadly when", NULL,          "Select deadliness of element"
2954   },
2955   {
2956     ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
2957     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2958     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2959     -1,
2960     options_explosion_type,
2961     &custom_element.explosion_type,
2962     NULL, "Can explode", NULL,          "Select explosion type"
2963   },
2964
2965   // ---------- element settings: advanced (custom elements) ------------------
2966
2967   {
2968     ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
2969     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2970     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2971     -1,
2972     options_time_units,
2973     &custom_element_change.delay_frames,
2974     NULL, "Delay time given in", NULL,  "Select delay time units for change"
2975   },
2976   {
2977     ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
2978     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2979     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2980     -1,
2981     options_change_direct_action,
2982     &custom_element_change.direct_action,
2983     NULL, NULL, NULL,                   "Select type of direct action"
2984   },
2985   {
2986     ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
2987     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2988     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2989     -1,
2990     options_change_other_action,
2991     &custom_element_change.other_action,
2992     NULL, NULL, "element:",             "Select type of other element action"
2993   },
2994   {
2995     ED_SELECTBOX_ID_CHANGE_SIDE,
2996     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2997     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2998     -1,
2999     options_change_trigger_side,
3000     &custom_element_change.trigger_side,
3001     NULL, "at", "side",                 "Select element side triggering change"
3002   },
3003   {
3004     ED_SELECTBOX_ID_CHANGE_PLAYER,
3005     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
3006     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
3007     -1,
3008     options_change_trigger_player,
3009     &custom_element_change.trigger_player,
3010     NULL, "Player:", " ",               "Select player that causes change"
3011   },
3012   {
3013     ED_SELECTBOX_ID_CHANGE_PAGE,
3014     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
3015     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
3016     -1,
3017     options_change_trigger_page,
3018     &custom_element_change.trigger_page,
3019     NULL, "Page:", NULL,                "Select change page that causes change"
3020   },
3021   {
3022     ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
3023     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
3024     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
3025     -1,
3026     options_change_replace_when,
3027     &custom_element_change.replace_when,
3028     NULL, "Replace when", NULL,         "Select which elements can be replaced"
3029   },
3030   {
3031     ED_SELECTBOX_ID_ACTION_TYPE,
3032     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
3033     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
3034     15,
3035     options_action_type,
3036     &custom_element_change.action_type,
3037     NULL, NULL, NULL,                   "Select action on specified condition"
3038   },
3039   {
3040     ED_SELECTBOX_ID_ACTION_MODE,
3041     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3042     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
3043     -1,
3044     options_action_mode_none,
3045     &custom_element_change.action_mode,
3046     NULL, NULL, NULL,                   "Select action operator"
3047   },
3048   {
3049     ED_SELECTBOX_ID_ACTION_ARG,
3050     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3051     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
3052     -1,
3053     options_action_arg_none,
3054     &custom_element_change.action_arg,
3055     NULL, NULL, NULL,                   "Select action parameter"
3056   },
3057   {
3058     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
3059     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
3060     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
3061     3,
3062     options_change_page,
3063     &custom_element.current_change_page,
3064     NULL, NULL, NULL,                   "Select element change page"
3065   },
3066
3067   // ---------- element settings: configure (group elements) ------------------
3068
3069   {
3070     ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
3071     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3072     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
3073     -1,
3074     options_group_choice_mode,
3075     &group_element_info.choice_mode,
3076     NULL, "Choice type:", NULL,         "Select type of group element choice"
3077   },
3078 };
3079
3080 static struct
3081 {
3082   int gadget_type_id;
3083   int x, y;
3084   int gadget_id;
3085   int gadget_id_align;
3086   int size;
3087   char *text;
3088   char *text_above, *text_left, *text_right, *infotext;
3089 } textbutton_info[ED_NUM_TEXTBUTTONS] =
3090 {
3091   // ---------- level and editor settings (tabs) ------------------------------
3092
3093   {
3094     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
3095     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
3096     GADGET_ID_LEVELCONFIG_LEVEL,        GADGET_ID_NONE,
3097     8,                                  "Level",
3098     NULL, NULL, NULL,                   "Configure level settings"
3099   },
3100   {
3101     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
3102     -1,                                 -1,
3103     GADGET_ID_LEVELCONFIG_LEVELSET,     GADGET_ID_LEVELCONFIG_LEVEL,
3104     8,                                  "Levelset",
3105     NULL, NULL, NULL,                   "Update this or create new level set"
3106   },
3107   {
3108     ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
3109     -1,                                 -1,
3110     GADGET_ID_LEVELCONFIG_EDITOR,       GADGET_ID_LEVELCONFIG_LEVELSET,
3111     8,                                  "Editor",
3112     NULL, NULL, NULL,                   "Configure editor settings"
3113   },
3114   {
3115     ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
3116     -1,                                 -1,
3117     GADGET_ID_LEVELCONFIG_ENGINE,       GADGET_ID_LEVELCONFIG_EDITOR,
3118     8,                                  "Engine",
3119     NULL, NULL, NULL,                   "Configure engine settings"
3120   },
3121
3122   // ---------- element settings (tabs) ---------------------------------------
3123
3124   {
3125     ED_TEXTBUTTON_ID_PROPERTIES_INFO,
3126     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
3127     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
3128     8,                                  "Info",
3129     NULL, NULL, NULL,                   "Show information about element"
3130   },
3131   {
3132     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
3133     -1,                                 -1,
3134     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
3135     8,                                  "Config",
3136     NULL, NULL, NULL,                   "Configure element properties"
3137   },
3138   {
3139     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
3140     -1,                                 -1,
3141     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
3142     8,                                  "Config 1",
3143     NULL, NULL, NULL,                   "Configure element properties, part 1"
3144   },
3145   {
3146     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
3147     -1,                                 -1,
3148     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
3149     8,                                  "Config 2",
3150     NULL, NULL, NULL,                   "Configure element properties, part 2"
3151   },
3152   {
3153     ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
3154     -1,                                 -1,
3155     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
3156     8,                                  "Change",
3157     NULL, NULL, NULL,                   "Configure custom element change pages"
3158   },
3159
3160   // ---------- level and editor settings (buttons) ---------------------------
3161
3162   {
3163     ED_TEXTBUTTON_ID_SAVE_LEVELSET,
3164     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
3165     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
3166     -1,                                 "Save",
3167     NULL, NULL, NULL,                   "Update or create level set"
3168   },
3169   {
3170     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
3171     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3172     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
3173     -1,                                 "Save",
3174     NULL, NULL,                         "this level as level template",
3175     "Save current settings as new template"
3176   },
3177
3178   // ---------- element settings (buttons) ------------------------------------
3179
3180   {
3181     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
3182     -1,                                 -1,
3183     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
3184     -1,                                 "Save",
3185     NULL, " ",                          "As Template",
3186     "Save current settings as new template"
3187   },
3188   {
3189     ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
3190     -1,                                 -1,
3191     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
3192     -1,                                 "New",
3193     NULL, NULL, NULL,                   "Add new change page"
3194   },
3195   {
3196     ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
3197     -1,                                 -1,
3198     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
3199     -1,                                 "Delete",
3200     NULL, NULL, NULL,                   "Delete current change page"
3201   },
3202 };
3203
3204 static struct
3205 {
3206   int gadget_type_id;
3207   int graphic;
3208   int x, y;
3209   int gadget_id;
3210   int gadget_id_align;
3211   char *text_left, *text_right, *infotext;
3212 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
3213 {
3214   {
3215     ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
3216     IMG_EDITOR_COUNTER_DOWN,
3217     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3218     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
3219     NULL, NULL,                         "Select previous change page"
3220   },
3221   {
3222     ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
3223     IMG_EDITOR_COUNTER_UP,
3224     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3225     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
3226     NULL, "Change page",                "Select next change page"
3227   },
3228   {
3229     ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
3230     IMG_GFX_EDITOR_BUTTON_CP_COPY,
3231     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3232     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
3233     " ", NULL,                          "Copy settings from this change page"
3234   },
3235   {
3236     ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
3237     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
3238     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3239     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
3240     NULL, NULL,                         "Paste settings to this change page"
3241   },
3242 };
3243
3244 static struct
3245 {
3246   int x, y;
3247 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
3248
3249 static struct
3250 {
3251   int gadget_type_id;
3252   int graphic;
3253   int gadget_id;
3254   char *infotext;
3255 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
3256 {
3257   {
3258     ED_SCROLLBUTTON_ID_AREA_UP,
3259     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
3260     GADGET_ID_SCROLL_UP,
3261     "Scroll level editing area up"
3262   },
3263   {
3264     ED_SCROLLBUTTON_ID_AREA_DOWN,
3265     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
3266     GADGET_ID_SCROLL_DOWN,
3267     "Scroll level editing area down"
3268   },
3269   {
3270     ED_SCROLLBUTTON_ID_AREA_LEFT,
3271     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
3272     GADGET_ID_SCROLL_LEFT,
3273     "Scroll level editing area left"
3274   },
3275   {
3276     ED_SCROLLBUTTON_ID_AREA_RIGHT,
3277     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
3278     GADGET_ID_SCROLL_RIGHT,
3279     "Scroll level editing area right"
3280   },
3281   {
3282     ED_SCROLLBUTTON_ID_LIST_UP,
3283     IMG_EDITOR_PALETTE_SCROLL_UP,
3284     GADGET_ID_SCROLL_LIST_UP,
3285     "Scroll element list up ('Page Up')"
3286   },
3287   {
3288     ED_SCROLLBUTTON_ID_LIST_DOWN,
3289     IMG_EDITOR_PALETTE_SCROLL_DOWN,
3290     GADGET_ID_SCROLL_LIST_DOWN,
3291     "Scroll element list down ('Page Down')"
3292   },
3293 };
3294
3295 static struct
3296 {
3297   int x, y;
3298   int width, height;
3299   int wheel_x, wheel_y;
3300   int wheel_width, wheel_height;
3301 } scrollbar_pos[ED_NUM_SCROLLBARS];
3302
3303 static struct
3304 {
3305   int gadget_type_id;
3306   int graphic;
3307   int type;
3308   int gadget_id;
3309   char *infotext;
3310 } scrollbar_info[ED_NUM_SCROLLBARS] =
3311 {
3312   {
3313     ED_SCROLLBAR_ID_AREA_HORIZONTAL,
3314     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3315     GD_TYPE_SCROLLBAR_HORIZONTAL,
3316     GADGET_ID_SCROLL_HORIZONTAL,
3317     "Scroll level editing area horizontally"
3318   },
3319   {
3320     ED_SCROLLBAR_ID_AREA_VERTICAL,
3321     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3322     GD_TYPE_SCROLLBAR_VERTICAL,
3323     GADGET_ID_SCROLL_VERTICAL,
3324     "Scroll level editing area vertically"
3325   },
3326   {
3327     ED_SCROLLBAR_ID_LIST_VERTICAL,
3328     IMG_EDITOR_PALETTE_SCROLLBAR,
3329     GD_TYPE_SCROLLBAR_VERTICAL,
3330     GADGET_ID_SCROLL_LIST_VERTICAL,
3331     "Scroll element list vertically"
3332   }
3333 };
3334
3335
3336 static struct
3337 {
3338   int gadget_type_id;
3339   int x, y;
3340   int gadget_id;
3341   int gadget_id_align;
3342   int radio_button_nr;
3343   int *value;
3344   int checked_value;
3345   char *text_left, *text_right, *infotext;
3346 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3347 {
3348   {
3349     ED_RADIOBUTTON_ID_PERCENTAGE,
3350     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3351     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3352     RADIO_NR_RANDOM_ELEMENTS,
3353     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3354     " ", "percentage",                  "Use percentage for random elements"
3355   },
3356   {
3357     ED_RADIOBUTTON_ID_QUANTITY,
3358     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3359     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3360     RADIO_NR_RANDOM_ELEMENTS,
3361     &random_placement_method,           RANDOM_USE_QUANTITY,
3362     " ", "quantity",                    "Use quantity for random elements"
3363   }
3364 };
3365
3366 static struct
3367 {
3368   int gadget_type_id;
3369   int x, y;
3370   int gadget_id;
3371   int gadget_id_align;
3372   boolean *value;
3373   char *text_above, *text_left, *text_right, *infotext;
3374 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3375 {
3376   // ---------- level and editor settings -------------------------------------
3377
3378   {
3379     ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
3380     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3381     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3382     &level.auto_count_gems,
3383     NULL, NULL,
3384     "Automatically count gems needed",  "Set counter to number of gems"
3385   },
3386   {
3387     ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
3388     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3389     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3390     &level.rate_time_over_score,
3391     NULL, NULL,
3392     "Rate time/steps used over score",  "Sort high scores by playing time/steps"
3393   },
3394   {
3395     ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
3396     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3397     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3398     &levelset_use_levelset_artwork,
3399     NULL, NULL,
3400     "Use current custom artwork",       "Use custom artwork of this level set"
3401   },
3402   {
3403     ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
3404     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3405     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3406     &levelset_copy_level_template,
3407     NULL, NULL,
3408     "Copy current level template",      "Copy level template of this level set"
3409   },
3410   {
3411     ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
3412     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3413     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3414     &random_placement_background_restricted,
3415     NULL, NULL,
3416     "Restrict random placement to:",    "Set random placement restriction"
3417   },
3418   {
3419     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
3420     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3421     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3422     &setup.editor.use_template_for_new_levels,
3423     "Template for new levels and CE/GE:", NULL,
3424     "Use template for new levels",      "Use template for level properties"
3425   },
3426   {
3427     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
3428     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3429     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3430     &level.use_custom_template,
3431     NULL, NULL,
3432     "Use template for custom elements", "Use template for custom properties"
3433   },
3434   {
3435     ED_CHECKBUTTON_ID_BD_INTERMISSION,
3436     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
3437     GADGET_ID_BD_INTERMISSION,          GADGET_ID_NONE,
3438     &level.bd_intermission,
3439     "Boulder Dash game engine settings:", NULL,
3440     "Intermission",                     "Level is an intermission level"
3441   },
3442   {
3443     ED_CHECKBUTTON_ID_BD_PAL_TIMING,
3444     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
3445     GADGET_ID_BD_PAL_TIMING,            GADGET_ID_NONE,
3446     &level.bd_pal_timing,
3447     NULL, NULL,
3448     "PAL timing",                       "Use slower timer (like PAL C64)"
3449   },
3450   {
3451     ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
3452     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3453     GADGET_ID_BD_LINE_SHIFTING_BORDERS, GADGET_ID_NONE,
3454     &level.bd_line_shifting_borders,
3455     "Compatibility settings:", NULL,
3456     "Line-shifting borders",            "Use line-shifting wrap-around"
3457   },
3458   {
3459     ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
3460     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3461     GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW, GADGET_ID_NONE,
3462     &level.bd_scan_first_and_last_row,
3463     NULL, NULL,
3464     "Scan first and last row",          "Also process top/bottom border rows"
3465   },
3466   {
3467     ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
3468     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3469     GADGET_ID_BD_SHORT_EXPLOSIONS,      GADGET_ID_NONE,
3470     &level.bd_short_explosions,
3471     NULL, NULL,
3472     "Short explosions",                 "Use four game cycles for explosions"
3473   },
3474   {
3475     ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
3476     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(9),
3477     GADGET_ID_BD_GRAVITY_AFFECTS_ALL,   GADGET_ID_NONE,
3478     &level.bd_gravity_affects_all,
3479     NULL, NULL,
3480     "Gravity change affects everything", "Gravity affects all falling objects"
3481   },
3482
3483   // ---------- element settings: configure (various elements) ----------------
3484
3485   {
3486     ED_CHECKBUTTON_ID_STICK_ELEMENT,
3487     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3488     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3489     &stick_element_properties_window,
3490     NULL, NULL,
3491     "Stick this screen to edit content","Stick this screen to edit content"
3492   },
3493   {
3494     ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
3495     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3496     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3497     &level.em_slippery_gems,
3498     NULL, NULL,
3499     "Slip down from certain flat walls","Use EM/DC style slipping behaviour"
3500   },
3501   {
3502     ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
3503     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3504     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3505     &level.em_explodes_by_fire,
3506     NULL, NULL,
3507     "Explodes with chain reaction",     "Use R'n'D style explosion behaviour"
3508   },
3509   {
3510     ED_CHECKBUTTON_ID_USE_SPRING_BUG,
3511     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3512     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3513     &level.use_spring_bug,
3514     NULL, NULL,
3515     "Use spring pushing bug",           "Use odd spring pushing behaviour"
3516   },
3517   {
3518     ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
3519     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3520     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3521     &level.use_time_orb_bug,
3522     NULL, NULL,
3523     "Use time orb bug",                 "Use odd time orb behaviour"
3524   },
3525   {
3526     ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
3527     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3528     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3529     &level.use_life_bugs,
3530     NULL, NULL,
3531     "Use buggy element behaviour",      "Use odd (historic) element behaviour"
3532   },
3533   {
3534     ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
3535     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3536     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3537     &level.ball_random,
3538     NULL, NULL,
3539     "Create single random element",     "Only create one element from content"
3540   },
3541   {
3542     ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
3543     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3544     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3545     &level.ball_active_initial,
3546     NULL, NULL,
3547     "Magic ball initially activated",   "Activate magic ball after level start"
3548   },
3549   {
3550     ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
3551     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3552     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3553     &level.grow_into_diggable,
3554     NULL, NULL,
3555     "Can grow into anything diggable",  "Grow into more than just sand"
3556   },
3557   {
3558     ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
3559     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3560     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3561     &level.sb_fields_needed,
3562     NULL, NULL,
3563     "All fields need to be filled",     "Require all SB fields to be solved"
3564   },
3565   {
3566     ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
3567     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3568     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3569     &level.sb_objects_needed,
3570     NULL, NULL,
3571     "All objects need to be placed",    "Require all SB objects to be solved"
3572   },
3573   {
3574     ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
3575     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3576     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3577     &level.auto_exit_sokoban,
3578     NULL, NULL,
3579     "Exit level if all tasks solved",   "Automatically finish Sokoban levels"
3580   },
3581   {
3582     ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
3583     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3584     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3585     &level.solved_by_one_player,
3586     NULL, NULL,
3587     "Only one player must enter exit",  "Level solved by first player in exit"
3588   },
3589   {
3590     ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
3591     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3592     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3593     &level.finish_dig_collect,
3594     NULL, NULL,
3595     "CE action on finished dig/collect", "Only finished dig/collect triggers CE"
3596   },
3597   {
3598     ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
3599     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3600     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3601     &level.keep_walkable_ce,
3602     NULL, NULL,
3603     "Keep walkable CE changed to player", "Keep CE changing to player if walkable"
3604   },
3605   {
3606     ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
3607     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3608     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3609     &level.continuous_snapping,
3610     NULL, NULL,
3611     "Continuous snapping",              "Use snapping without releasing key"
3612   },
3613   {
3614     ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
3615     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3616     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3617     &level.block_snap_field,
3618     NULL, NULL,
3619     "Block snapped field when snapping", "Use snapping delay to show animation"
3620   },
3621   {
3622     ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
3623     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3624     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3625     &level.block_last_field,
3626     NULL, NULL,
3627     "Block last field when moving",     "Player blocks last field when moving"
3628   },
3629   {
3630     ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
3631     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3632     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3633     &level.sp_block_last_field,
3634     NULL, NULL,
3635     "Block last field when moving",     "Player blocks last field when moving"
3636   },
3637   {
3638     ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
3639     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3640     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3641     &level.instant_relocation,
3642     NULL, NULL,
3643     "No scrolling when relocating",     "Player gets relocated without delay"
3644   },
3645   {
3646     ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
3647     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3648     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3649     &level.shifted_relocation,
3650     NULL, NULL,
3651     "No centering when relocating",     "Level not centered after relocation"
3652   },
3653   {
3654     ED_CHECKBUTTON_ID_LAZY_RELOCATION,
3655     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3656     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3657     &level.lazy_relocation,
3658     NULL, NULL,
3659     "Only redraw off-screen relocation","No redraw if relocation target visible"
3660   },
3661   {
3662     ED_CHECKBUTTON_ID_USE_START_ELEMENT,
3663     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3664     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3665     &level.use_start_element[0],
3666     NULL, NULL,
3667     "Use level start element:",        "Start level at this element's position"
3668   },
3669   {
3670     ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
3671     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3672     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3673     &level.use_artwork_element[0],
3674     NULL, NULL,
3675     "Use artwork from element:",        "Use player artwork from other element"
3676   },
3677   {
3678     ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
3679     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3680     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3681     &level.use_explosion_element[0],
3682     NULL, NULL,
3683     "Use explosion from element:",      "Use explosion properties from element"
3684   },
3685   {
3686     ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
3687     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3688     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3689     &level.initial_player_gravity[0],
3690     NULL, NULL,
3691     "Use initial gravity",              "Set initial player gravity"
3692   },
3693   {
3694     ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
3695     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3696     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3697     &level.use_initial_inventory[0],
3698     NULL, NULL,
3699     "Use initial inventory:",           "Use collected elements on level start"
3700   },
3701   {
3702     ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
3703     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3704     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3705     &level.can_pass_to_walkable,
3706     NULL, NULL,
3707     "Can pass to walkable element",     "Player can pass to empty or walkable"
3708   },
3709   {
3710     ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
3711     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3712     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3713     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3714     NULL, NULL,
3715     "Can fall into acid (with gravity)","Player can fall into acid pool"
3716   },
3717   {
3718     ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
3719     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3720     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3721     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3722     NULL, NULL,
3723     "Can move into acid",               "Element can move into acid pool"
3724   },
3725   {
3726     ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
3727     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3728     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3729     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3730     NULL, NULL,
3731     "Deadly when colliding with",       "Element is deadly when hitting player"
3732   },
3733   {
3734     ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
3735     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3736     GADGET_ID_BD_DIAGONAL_MOVEMENTS,    GADGET_ID_NONE,
3737     &level.bd_diagonal_movements,
3738     NULL, NULL,
3739     "Can move diagonally",              "Player can move diagonally"
3740   },
3741   {
3742     ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
3743     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3744     GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE, GADGET_ID_NONE,
3745     &level.bd_topmost_player_active,
3746     NULL, NULL,
3747     "Topmost player is active",         "Use first player found on playfield"
3748   },
3749   {
3750     ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
3751     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3752     GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET, GADGET_ID_NONE,
3753     &level.bd_push_mega_rock_with_sweet,
3754     NULL, NULL,
3755     "Mega rocks pushable with sweet",   "Push mega rocks after eating sweet"
3756   },
3757   {
3758     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
3759     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3760     GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING, GADGET_ID_NONE,
3761     &level.bd_magic_wall_wait_hatching,
3762     NULL, NULL,
3763     "Wait for player's birth",          "Timer start waits for player's birth"
3764   },
3765   {
3766     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
3767     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3768     GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA, GADGET_ID_NONE,
3769     &level.bd_magic_wall_stops_amoeba,
3770     NULL, NULL,
3771     "Turn amoeba to diamonds",          "Activation changes amoeba to diamonds"
3772   },
3773   {
3774     ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
3775     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3776     GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING, GADGET_ID_NONE,
3777     &level.bd_amoeba_wait_for_hatching,
3778     NULL, NULL,
3779     "Wait for player's birth",          "Timer start waits for player's birth"
3780   },
3781   {
3782     ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
3783     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3784     GADGET_ID_BD_AMOEBA_START_IMMEDIATELY, GADGET_ID_NONE,
3785     &level.bd_amoeba_start_immediately,
3786     NULL, NULL,
3787     "Start growing immediately",        "Start slow growth time immediately"
3788   },
3789   {
3790     ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
3791     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3792     GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA, GADGET_ID_NONE,
3793     &level.bd_amoeba_2_explode_by_amoeba,
3794     NULL, NULL,
3795     "Explodes if touched by amoeba",    "Amoeba 2 explodes if touched by amoeba"
3796   },
3797   {
3798     ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
3799     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3800     GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS, GADGET_ID_NONE,
3801     &level.bd_voodoo_collects_diamonds,
3802     NULL, NULL,
3803     "Can collect diamonds",             "Can collect diamonds for the player"
3804   },
3805   {
3806     ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
3807     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3808     GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER, GADGET_ID_NONE,
3809     &level.bd_voodoo_hurt_kills_player,
3810     NULL, NULL,
3811     "Player is killed if hurt",         "If hurt in any way, player is killed"
3812   },
3813   {
3814     ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
3815     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3816     GADGET_ID_BD_VOODOO_DIES_BY_ROCK,   GADGET_ID_NONE,
3817     &level.bd_voodoo_dies_by_rock,
3818     NULL, NULL,
3819     "Killed by falling rock",           "Can be killed by a falling rock"
3820   },
3821   {
3822     ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
3823     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3824     GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION, GADGET_ID_NONE,
3825     &level.bd_voodoo_vanish_by_explosion,
3826     NULL, NULL,
3827     "Disappears in explosions",         "Can be destroyed by explosions"
3828   },
3829   {
3830     ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE,
3831     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3832     GADGET_ID_BD_SLIME_IS_PREDICTABLE, GADGET_ID_NONE,
3833     &level.bd_slime_is_predictable,
3834     NULL, NULL,
3835     "Slime is predictable",             "Use predictable random numbers"
3836   },
3837   {
3838     ED_CHECKBUTTON_ID_BD_CHANGE_EXPANDING_WALL,
3839     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3840     GADGET_ID_BD_CHANGE_EXPANDING_WALL, GADGET_ID_NONE,
3841     &level.bd_change_expanding_wall,
3842     NULL, NULL,
3843     "Change direction",                 "Switch horizontal/vertical direction"
3844   },
3845   {
3846     ED_CHECKBUTTON_ID_BD_REPLICATORS_ACTIVE,
3847     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3848     GADGET_ID_BD_REPLICATORS_ACTIVE,    GADGET_ID_NONE,
3849     &level.bd_replicators_active,
3850     NULL, NULL,
3851     "Active at start",                  "Replicators start in active state"
3852   },
3853   {
3854     ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_ACTIVE,
3855     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3856     GADGET_ID_BD_CONVEYOR_BELTS_ACTIVE, GADGET_ID_NONE,
3857     &level.bd_conveyor_belts_active,
3858     NULL, NULL,
3859     "Active at start",                  "Conveyor belts start in active state"
3860   },
3861   {
3862     ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_CHANGED,
3863     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3864     GADGET_ID_BD_CONVEYOR_BELTS_CHANGED, GADGET_ID_NONE,
3865     &level.bd_conveyor_belts_changed,
3866     NULL, NULL,
3867     "Change direction",                 "Switch conveyor belt direction"
3868   },
3869   {
3870     ED_CHECKBUTTON_ID_BD_WATER_CANNOT_FLOW_DOWN,
3871     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3872     GADGET_ID_BD_WATER_CANNOT_FLOW_DOWN, GADGET_ID_NONE,
3873     &level.bd_water_cannot_flow_down,
3874     NULL, NULL,
3875     "Does not flow downwards",          "Water can only flow up, left and right"
3876   },
3877   {
3878     ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
3879     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3880     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3881     &level.envelope[0].autowrap,
3882     NULL, NULL,
3883     "Auto-wrap",                        "Automatically wrap envelope text"
3884   },
3885   {
3886     ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
3887     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3888     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3889     &level.envelope[0].centered,
3890     NULL, " ",
3891     "Centered",                         "Automatically center envelope text"
3892   },
3893   {
3894     ED_CHECKBUTTON_ID_MM_LASER_RED,
3895     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3896     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3897     &level.mm_laser_red,
3898     "Choose color components for laser:", NULL,
3899     "Red",                              "Use red color components in laser"
3900   },
3901   {
3902     ED_CHECKBUTTON_ID_MM_LASER_GREEN,
3903     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3904     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3905     &level.mm_laser_green,
3906     NULL, NULL,
3907     "Green",                            "Use green color components in laser"
3908   },
3909   {
3910     ED_CHECKBUTTON_ID_MM_LASER_BLUE,
3911     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3912     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3913     &level.mm_laser_blue,
3914     NULL, NULL,
3915     "Blue",                             "Use blue color components in laser"
3916   },
3917   {
3918     ED_CHECKBUTTON_ID_DF_LASER_RED,
3919     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3920     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3921     &level.df_laser_red,
3922     "Choose color components for laser:", NULL,
3923     "Red",                              "Use red color components in laser"
3924   },
3925   {
3926     ED_CHECKBUTTON_ID_DF_LASER_GREEN,
3927     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3928     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3929     &level.df_laser_green,
3930     NULL, NULL,
3931     "Green",                            "Use green color components in laser"
3932   },
3933   {
3934     ED_CHECKBUTTON_ID_DF_LASER_BLUE,
3935     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3936     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3937     &level.df_laser_blue,
3938     NULL, NULL,
3939     "Blue",                             "Use blue color components in laser"
3940   },
3941   {
3942     ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
3943     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3944     GADGET_ID_ROTATE_MM_BALL_CONTENT,   GADGET_ID_NONE,
3945     &level.rotate_mm_ball_content,
3946     NULL, NULL,
3947     "Randomly rotate created content",  "Randomly rotate newly created content"
3948   },
3949   {
3950     ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
3951     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3952     GADGET_ID_EXPLODE_MM_BALL,          GADGET_ID_NONE,
3953     &level.explode_mm_ball,
3954     NULL, NULL,
3955     "Explode ball instead of melting",  "Use explosion to release ball content"
3956   },
3957
3958   // ---------- element settings: configure 1 (custom elements) ---------------
3959
3960   {
3961     ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
3962     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3963     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3964     &custom_element.use_gfx_element,
3965     NULL, NULL,
3966     "Use graphic of element:",          "Use existing element graphic"
3967   },
3968   {
3969     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
3970     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3971     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3972     &level.use_custom_template,
3973     NULL, NULL,
3974     "Use template",                     "Use template for custom properties"
3975   },
3976   {
3977     ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
3978     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3979     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3980     &custom_element_properties[EP_ACCESSIBLE],
3981     NULL, NULL,
3982     NULL,                               "Player can walk to or pass this field"
3983   },
3984   {
3985     ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
3986     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3987     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3988     &custom_element_properties[EP_GRAVITY_REACHABLE],
3989     NULL, NULL,
3990     "Reachable despite gravity",        "Player can walk/dig despite gravity"
3991   },
3992   {
3993     ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
3994     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3995     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3996     &custom_element.use_last_ce_value,
3997     NULL, NULL,
3998     "Use last CE value after change",   "Use last CE value after change"
3999   },
4000   {
4001     ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
4002     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
4003     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
4004     &custom_element_properties[EP_WALK_TO_OBJECT],
4005     NULL, NULL,
4006     NULL,                               "Player can dig/collect/push element"
4007   },
4008   {
4009     ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
4010     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
4011     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
4012     &custom_element_properties[EP_INDESTRUCTIBLE],
4013     NULL, NULL,
4014     "Indestructible",                   "Element is indestructible"
4015   },
4016
4017   // ---------- element settings: configure 2 (custom elements) ---------------
4018
4019   {
4020     ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
4021     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
4022     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
4023     &custom_element_properties[EP_CAN_MOVE],
4024     NULL, NULL,
4025     NULL,                               "Element can move with some pattern"
4026   },
4027   {
4028     ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
4029     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
4030     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
4031     &custom_element_properties[EP_CAN_FALL],
4032     NULL, NULL,
4033     "Can fall",                         "Element can fall down"
4034   },
4035   {
4036     ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
4037     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
4038     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
4039     &custom_element_properties[EP_CAN_SMASH],
4040     NULL, " ",
4041     NULL,                               "Element can smash other elements"
4042   },
4043   {
4044     ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
4045     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
4046     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
4047     &custom_element_properties[EP_SLIPPERY],
4048     NULL, NULL,
4049     NULL,                               "Other elements can fall down from it"
4050   },
4051   {
4052     ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
4053     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
4054     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
4055     &custom_element_properties[EP_DEADLY],
4056     NULL, NULL,
4057     NULL,                               "Element can kill the player"
4058   },
4059   {
4060     ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
4061     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
4062     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
4063     &custom_element_properties[EP_CAN_EXPLODE],
4064     NULL, NULL,
4065     NULL,                               "Element can explode"
4066   },
4067   {
4068     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
4069     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
4070     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
4071     &custom_element_properties[EP_EXPLODES_BY_FIRE],
4072     NULL, NULL,
4073     "By fire",                          "Element can explode by fire/explosion"
4074   },
4075   {
4076     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
4077     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
4078     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
4079     &custom_element_properties[EP_EXPLODES_SMASHED],
4080     NULL, " ",
4081     "Smashed",                          "Element can explode when smashed"
4082   },
4083   {
4084     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
4085     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
4086     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
4087     &custom_element_properties[EP_EXPLODES_IMPACT],
4088     NULL, " ",
4089     "Impact",                           "Element can explode on impact"
4090   },
4091
4092   // ---------- element settings: advanced (custom elements) ------------------
4093
4094   {
4095     ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
4096     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
4097     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
4098     &custom_element_change.can_change,
4099     NULL, NULL,
4100     "Element changes to:",              "Change element on specified condition"
4101   },
4102   {
4103     ED_CHECKBUTTON_ID_CHANGE_DELAY,
4104     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
4105     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
4106     &custom_element_change_events[CE_DELAY],
4107     NULL, NULL,
4108     NULL,                               "Element changes after delay"
4109   },
4110   {
4111     ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
4112     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
4113     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
4114     &custom_element_change_events[CE_BY_DIRECT_ACTION],
4115     NULL, NULL,
4116     NULL,                               "Element changes by direct action"
4117   },
4118   {
4119     ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
4120     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
4121     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
4122     &custom_element_change_events[CE_BY_OTHER_ACTION],
4123     NULL, NULL,
4124     NULL,                               "Element changes by other element"
4125   },
4126   {
4127     ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
4128     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
4129     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
4130     &custom_element_change.explode,
4131     NULL, NULL,
4132     "Explode instead of change",        "Element explodes instead of change"
4133   },
4134   {
4135     ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
4136     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
4137     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
4138     &custom_element_change.use_target_content,
4139     NULL, NULL,
4140     "Use extended change target:",      "Element changes to more elements"
4141   },
4142   {
4143     ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
4144     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
4145     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
4146     &custom_element_change.only_if_complete,
4147     NULL, NULL,
4148     "Replace all or nothing",           "Only replace when all can be changed"
4149   },
4150   {
4151     ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
4152     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
4153     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
4154     &custom_element_change.use_random_replace,
4155     NULL, NULL,
4156     NULL,                               "Use percentage for random replace"
4157   },
4158   {
4159     ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
4160     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
4161     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
4162     &custom_element_change.has_action,
4163     NULL, NULL,
4164     NULL,                               "Execute action on specified condition"
4165   },
4166 };
4167
4168 static struct
4169 {
4170   int gadget_type_id;
4171   int x, y;
4172   int xoffset, yoffset;
4173   int gadget_id;
4174   int gadget_id_align;
4175   int *value;
4176   int area_xsize, area_ysize;
4177   char *text_left, *text_right, *text_above, *text_below, *infotext;
4178 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
4179 {
4180   // ---------- level playfield content ---------------------------------------
4181
4182   {
4183     ED_DRAWING_ID_DRAWING_LEVEL,
4184     0,                                  0,
4185     0,                                  0,
4186     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
4187     NULL,
4188     -1, -1,     // these values are not constant, but can change at runtime
4189     NULL, NULL, NULL, NULL,             NULL
4190   },
4191
4192   // ---------- yam yam content -----------------------------------------------
4193
4194   {
4195     ED_DRAWING_ID_YAMYAM_CONTENT_0,
4196     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4197     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
4198     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
4199     &level.yamyam_content[0].e[0][0],   3, 3,
4200     NULL, NULL, NULL, "1",              NULL
4201   },
4202   {
4203     ED_DRAWING_ID_YAMYAM_CONTENT_1,
4204     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4205     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
4206     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
4207     &level.yamyam_content[1].e[0][0],   3, 3,
4208     NULL, NULL, NULL, "2",              NULL
4209   },
4210   {
4211     ED_DRAWING_ID_YAMYAM_CONTENT_2,
4212     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4213     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
4214     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
4215     &level.yamyam_content[2].e[0][0],   3, 3,
4216     NULL, NULL, NULL, "3",              NULL
4217   },
4218   {
4219     ED_DRAWING_ID_YAMYAM_CONTENT_3,
4220     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4221     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
4222     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
4223     &level.yamyam_content[3].e[0][0],   3, 3,
4224     NULL, NULL, NULL, "4",              NULL
4225   },
4226   {
4227     ED_DRAWING_ID_YAMYAM_CONTENT_4,
4228     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4229     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
4230     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
4231     &level.yamyam_content[4].e[0][0],   3, 3,
4232     NULL, NULL, NULL, "5",              NULL
4233   },
4234   {
4235     ED_DRAWING_ID_YAMYAM_CONTENT_5,
4236     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4237     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
4238     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
4239     &level.yamyam_content[5].e[0][0],   3, 3,
4240     NULL, NULL, NULL, "6",              NULL
4241   },
4242   {
4243     ED_DRAWING_ID_YAMYAM_CONTENT_6,
4244     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4245     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
4246     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
4247     &level.yamyam_content[6].e[0][0],   3, 3,
4248     NULL, NULL, NULL, "7",              NULL
4249   },
4250   {
4251     ED_DRAWING_ID_YAMYAM_CONTENT_7,
4252     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4253     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
4254     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
4255     &level.yamyam_content[7].e[0][0],   3, 3,
4256     NULL, NULL, NULL, "8",              NULL
4257   },
4258
4259   // ---------- magic ball content --------------------------------------------
4260
4261   {
4262     ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
4263     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4264     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
4265     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
4266     &level.ball_content[0].e[0][0],     3, 3,
4267     NULL, NULL, NULL, "1",              NULL
4268   },
4269   {
4270     ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
4271     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4272     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
4273     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
4274     &level.ball_content[1].e[0][0],     3, 3,
4275     NULL, NULL, NULL, "2",              NULL
4276   },
4277   {
4278     ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
4279     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4280     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
4281     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
4282     &level.ball_content[2].e[0][0],     3, 3,
4283     NULL, NULL, NULL, "3",              NULL
4284   },
4285   {
4286     ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
4287     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4288     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
4289     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
4290     &level.ball_content[3].e[0][0],     3, 3,
4291     NULL, NULL, NULL, "4",              NULL
4292   },
4293   {
4294     ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
4295     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4296     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
4297     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
4298     &level.ball_content[4].e[0][0],     3, 3,
4299     NULL, NULL, NULL, "5",              NULL
4300   },
4301   {
4302     ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
4303     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4304     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
4305     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
4306     &level.ball_content[5].e[0][0],     3, 3,
4307     NULL, NULL, NULL, "6",              NULL
4308   },
4309   {
4310     ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
4311     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4312     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
4313     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
4314     &level.ball_content[6].e[0][0],     3, 3,
4315     NULL, NULL, NULL, "7",              NULL
4316   },
4317   {
4318     ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
4319     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4320     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
4321     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
4322     &level.ball_content[7].e[0][0],     3, 3,
4323     NULL, NULL, NULL, "8",              NULL
4324   },
4325
4326   // ---------- android content -----------------------------------------------
4327
4328   {
4329     ED_DRAWING_ID_ANDROID_CONTENT,
4330     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
4331     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4332     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
4333     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
4334     NULL, NULL, "Elements:", NULL,      "Elements android can clone"
4335   },
4336
4337   // ---------- amoeba content ------------------------------------------------
4338
4339   {
4340     ED_DRAWING_ID_AMOEBA_CONTENT,
4341     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
4342     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4343     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
4344     &level.amoeba_content,              1, 1,
4345     "Content:", NULL, NULL, NULL,       "Amoeba content"
4346   },
4347
4348   // ---------- BD snap element -----------------------------------------------
4349
4350   {
4351     ED_DRAWING_ID_BD_SNAP_ELEMENT,
4352     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(5),
4353     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4354     GADGET_ID_BD_SNAP_ELEMENT,          GADGET_ID_NONE,
4355     &level.bd_snap_element,             1, 1,
4356     "Snap element:", NULL, NULL, NULL,  "Element created when snapping"
4357   },
4358
4359   // ---------- BD magic wall elements ----------------------------------------
4360
4361   {
4362     ED_DRAWING_ID_BD_MAGIC_WALL_DIAMOND_TO,
4363     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(4),
4364     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4365     GADGET_ID_BD_MAGIC_WALL_DIAMOND_TO, GADGET_ID_NONE,
4366     &level.bd_magic_wall_diamond_to,    1, 1,
4367     "Changes diamonds to:", NULL, NULL, NULL,   "Element to turn diamonds to"
4368   },
4369   {
4370     ED_DRAWING_ID_BD_MAGIC_WALL_ROCK_TO,
4371     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(5),
4372     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4373     GADGET_ID_BD_MAGIC_WALL_ROCK_TO, GADGET_ID_NONE,
4374     &level.bd_magic_wall_rock_to,       1, 1,
4375     "Changes rocks to:", NULL, NULL, NULL,      "Element to turn rocks to"
4376   },
4377   {
4378     ED_DRAWING_ID_BD_MAGIC_WALL_MEGA_ROCK_TO,
4379     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
4380     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4381     GADGET_ID_BD_MAGIC_WALL_MEGA_ROCK_TO, GADGET_ID_NONE,
4382     &level.bd_magic_wall_mega_rock_to,  1, 1,
4383     "Changes mega rocks to:", NULL, NULL, NULL, "Element to turn mega rocks to"
4384   },
4385   {
4386     ED_DRAWING_ID_BD_MAGIC_WALL_NUT_TO,
4387     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4388     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4389     GADGET_ID_BD_MAGIC_WALL_NUT_TO, GADGET_ID_NONE,
4390     &level.bd_magic_wall_nut_to,        1, 1,
4391     "Changes nuts to:", NULL, NULL, NULL,       "Element to turn nuts to"
4392   },
4393   {
4394     ED_DRAWING_ID_BD_MAGIC_WALL_NITRO_PACK_TO,
4395     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4396     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4397     GADGET_ID_BD_MAGIC_WALL_NITRO_PACK_TO, GADGET_ID_NONE,
4398     &level.bd_magic_wall_nitro_pack_to, 1, 1,
4399     "Changes nitro packs to:", NULL, NULL, NULL,        "Element to turn nitro packs to"
4400   },
4401   {
4402     ED_DRAWING_ID_BD_MAGIC_WALL_FLYING_DIAMOND_TO,
4403     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(9),
4404     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4405     GADGET_ID_BD_MAGIC_WALL_FLYING_DIAMOND_TO, GADGET_ID_NONE,
4406     &level.bd_magic_wall_flying_diamond_to, 1, 1,
4407     "Changes flying diamonds to:", NULL, NULL, NULL,    "Element to turn flying diamonds to"
4408   },
4409   {
4410     ED_DRAWING_ID_BD_MAGIC_WALL_FLYING_ROCK_TO,
4411     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(10),
4412     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4413     GADGET_ID_BD_MAGIC_WALL_FLYING_ROCK_TO, GADGET_ID_NONE,
4414     &level.bd_magic_wall_flying_rock_to, 1, 1,
4415     "Changes flying rocks to:", NULL, NULL, NULL,       "Element to turn flying rocks to"
4416   },
4417
4418   // ---------- BD amoeba content ---------------------------------------------
4419
4420   {
4421     ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
4422     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4423     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4424     GADGET_ID_BD_AMOEBA_CONTENT_TOO_BIG, GADGET_ID_NONE,
4425     &level.bd_amoeba_content_too_big,   1, 1,
4426     "If too big, changes to:", NULL, NULL, NULL,        "BD amoeba content if too big"
4427   },
4428   {
4429     ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
4430     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4431     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4432     GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED, GADGET_ID_NONE,
4433     &level.bd_amoeba_content_enclosed,  1, 1,
4434     "If enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba content if enclosed"
4435   },
4436
4437   // ---------- BD amoeba 2 content -------------------------------------------
4438
4439   {
4440     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
4441     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4442     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4443     GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG, GADGET_ID_NONE,
4444     &level.bd_amoeba_2_content_too_big, 1, 1,
4445     "If too big, changes to:", NULL, NULL, NULL,        "BD amoeba 2 content if too big"
4446   },
4447   {
4448     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
4449     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4450     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4451     GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED, GADGET_ID_NONE,
4452     &level.bd_amoeba_2_content_enclosed,        1, 1,
4453     "If enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba 2 content if enclosed"
4454   },
4455   {
4456     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
4457     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(10),
4458     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4459     GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING, GADGET_ID_NONE,
4460     &level.bd_amoeba_2_content_exploding,       1, 1,
4461     "If exploding, changes to:", NULL, NULL, NULL,      "BD amoeba 2 content if exploding"
4462   },
4463   {
4464     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
4465     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(11),
4466     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4467     GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,   GADGET_ID_NONE,
4468     &level.bd_amoeba_2_content_looks_like,      1, 1,
4469     "Use graphic of element:", NULL, NULL, NULL,        "BD amoeba 2 looks like this element"
4470   },
4471   {
4472     ED_DRAWING_ID_BD_ACID_EATS_ELEMENT,
4473     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(1),
4474     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4475     GADGET_ID_BD_ACID_EATS_ELEMENT,     GADGET_ID_NONE,
4476     &level.bd_acid_eats_element,        1, 1,
4477     "Can eat:", NULL, NULL, NULL,               "Eats this element when spreading"
4478   },
4479   {
4480     ED_DRAWING_ID_BD_ACID_TURNS_TO_ELEMENT,
4481     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
4482     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4483     GADGET_ID_BD_ACID_TURNS_TO_ELEMENT, GADGET_ID_NONE,
4484     &level.bd_acid_turns_to_element,    1, 1,
4485     "Can leave behind:", NULL, NULL, NULL,      "Turns to this element after spreading"
4486   },
4487   {
4488     ED_DRAWING_ID_BD_BITER_EATS_ELEMENT,
4489     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4490     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4491     GADGET_ID_BD_BITER_EATS_ELEMENT,    GADGET_ID_NONE,
4492     &level.bd_biter_eats_element,       1, 1,
4493     "Can eat:", NULL, NULL, NULL,       "Eats this element when moving"
4494   },
4495   {
4496     ED_DRAWING_ID_BD_BLADDER_CONVERTS_BY_ELEMENT,
4497     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(1),
4498     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4499     GADGET_ID_BD_BLADDER_CONVERTS_BY_ELEMENT, GADGET_ID_NONE,
4500     &level.bd_bladder_converts_by_element,      1, 1,
4501     "Turns to clock by touching:", NULL, NULL, NULL,    "Turns to clock by touching element"
4502   },
4503
4504   // ---------- level start element -------------------------------------------
4505
4506   {
4507     ED_DRAWING_ID_START_ELEMENT,
4508     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
4509     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4510     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
4511     &level.start_element[0],            1, 1,
4512     NULL, NULL, NULL, NULL,             "Level start element"
4513   },
4514
4515   // ---------- player artwork element ----------------------------------------
4516
4517   {
4518     ED_DRAWING_ID_ARTWORK_ELEMENT,
4519     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
4520     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4521     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
4522     &level.artwork_element[0],          1, 1,
4523     NULL, NULL, NULL, NULL,             "Element for player artwork"
4524   },
4525
4526   // ---------- player explosion element --------------------------------------
4527
4528   {
4529     ED_DRAWING_ID_EXPLOSION_ELEMENT,
4530     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
4531     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4532     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
4533     &level.explosion_element[0],        1, 1,
4534     NULL, NULL, NULL, NULL,             "Element for player explosion"
4535   },
4536
4537   // ---------- player initial inventory --------------------------------------
4538
4539   {
4540     ED_DRAWING_ID_INVENTORY_CONTENT,
4541     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4542     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4543     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
4544     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
4545     NULL, NULL, NULL, NULL,             "Content for initial inventory"
4546   },
4547
4548   // ---------- gray ball content -----------------------------------------
4549
4550   {
4551     ED_DRAWING_ID_MM_BALL_CONTENT,
4552     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4553     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4554     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
4555     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
4556     "Content:", NULL, NULL, NULL,       "Content for gray ball"
4557   },
4558
4559   // ---------- element settings: configure 1 (custom elements) ---------------
4560
4561   // ---------- custom graphic ------------------------------------------------
4562
4563   {
4564     ED_DRAWING_ID_CUSTOM_GRAPHIC,
4565     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4566     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4567     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
4568     &custom_element.gfx_element_initial, 1, 1,
4569     NULL, NULL, NULL, NULL,             "Custom graphic element"
4570   },
4571
4572   // ---------- element settings: configure 2 (custom elements) ---------------
4573
4574   // ---------- custom content (when exploding) -------------------------------
4575
4576   {
4577     ED_DRAWING_ID_CUSTOM_CONTENT,
4578     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
4579     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4580     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
4581     &custom_element.content.e[0][0],    3, 3,
4582     "Content:", NULL, NULL, NULL,       NULL
4583   },
4584
4585   // ---------- custom enter and leave element (when moving) ------------------
4586
4587   {
4588     ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
4589     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
4590     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4591     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
4592     &custom_element.move_enter_element, 1, 1,
4593     "Can dig:", " ", NULL, NULL,        "Element that can be digged/collected"
4594   },
4595   {
4596     ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
4597     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
4598     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4599     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
4600     &custom_element.move_leave_element, 1, 1,
4601     NULL, NULL, NULL, NULL,             "Element that will be left behind"
4602   },
4603
4604   // ---------- element settings: advanced (custom elements) ------------------
4605
4606   // ---------- custom change target ------------------------------------------
4607
4608   {
4609     ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
4610     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4611     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4612     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
4613     &custom_element_change.target_element, 1, 1,
4614     NULL, "after/when:", NULL, NULL,    "New target element after change"
4615   },
4616
4617   // ---------- custom change content (extended change target) ----------------
4618
4619   {
4620     ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
4621     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
4622     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4623     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
4624     &custom_element_change.target_content.e[0][0], 3, 3,
4625     NULL, NULL, NULL, NULL,             "New extended elements after change"
4626   },
4627
4628   // ---------- custom change trigger (element causing change) ----------------
4629
4630   {
4631     ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
4632     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
4633     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4634     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
4635     &custom_element_change.initial_trigger_element, 1, 1,
4636     NULL, NULL, NULL, NULL,             "Other element triggering change"
4637   },
4638
4639   // ---------- custom change action (element used for action) ----------------
4640
4641   {
4642     ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
4643     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
4644     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4645     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
4646     &custom_element_change.action_element, 1, 1,
4647     NULL, NULL, NULL, NULL,             "Element used as action parameter"
4648   },
4649
4650   // ---------- group element content -----------------------------------------
4651
4652   {
4653     ED_DRAWING_ID_GROUP_CONTENT,
4654     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4655     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4656     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
4657     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
4658     "Content:", NULL, NULL, NULL,       NULL
4659   },
4660
4661   // ---------- random background (for random painting) -----------------------
4662
4663   {
4664     ED_DRAWING_ID_RANDOM_BACKGROUND,
4665     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
4666     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
4667     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
4668     &random_placement_background_element, 1, 1,
4669     NULL, NULL, NULL, NULL,             "Random placement background"
4670   },
4671 };
4672
4673
4674 // ----------------------------------------------------------------------------
4675 // some internally used variables
4676 // ----------------------------------------------------------------------------
4677
4678 // maximal size of level editor drawing area
4679 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
4680
4681 // actual size of level editor drawing area
4682 static int ed_fieldx, ed_fieldy;
4683
4684 // actual position of level editor drawing area in level playfield
4685 static int level_xpos = -1, level_ypos = -1;
4686
4687 // actual tile size used to display playfield drawing area
4688 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
4689 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
4690
4691 #define IN_ED_FIELD(x, y)       IN_FIELD(x, y, ed_fieldx, ed_fieldy)
4692
4693 // drawing elements on the three mouse buttons
4694 static int new_element1 = EL_WALL;
4695 static int new_element2 = EL_EMPTY;
4696 static int new_element3 = EL_SAND;
4697
4698 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
4699 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
4700                                 (button) == 2 ? new_element2 : \
4701                                 (button) == 3 ? new_element3 : EL_EMPTY)
4702
4703 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
4704
4705 static int use_permanent_palette = TRUE;
4706
4707 #define PX              (use_permanent_palette ? DX : SX)
4708 #define PY              (use_permanent_palette ? DY : SY)
4709 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
4710 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
4711
4712 // forward declaration for internal use
4713 static void CopyBrushToCursor(int, int);
4714 static void DeleteBrushFromCursor(void);
4715 static void ModifyEditorCounterValue(int, int);
4716 static void ModifyEditorCounterLimits(int, int, int);
4717 static void ModifyEditorSelectboxValue(int, int);
4718 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
4719 static void ModifyEditorDrawingArea(int, int, int);
4720 static void ModifyEditorElementList(void);
4721 static void AdjustElementListScrollbar(void);
4722 static void RedrawDrawingElements(void);
4723 static void DrawDrawingWindowExt(boolean);
4724 static void DrawDrawingWindow(void);
4725 static void DrawLevelConfigWindow(void);
4726 static void DrawPropertiesWindow(void);
4727 static void DrawPaletteWindow(void);
4728 static void UpdateCustomElementGraphicGadgets(void);
4729 static boolean checkPropertiesConfig(int);
4730 static void SetAutomaticNumberOfGemsNeeded(void);
4731 static void ClearEditorGadgetInfoText(void);
4732 static void CopyLevelToUndoBuffer(int);
4733 static void HandleDrawingAreas(struct GadgetInfo *);
4734 static void HandleCounterButtons(struct GadgetInfo *);
4735 static void HandleTextInputGadgets(struct GadgetInfo *);
4736 static void HandleTextAreaGadgets(struct GadgetInfo *);
4737 static void HandleSelectboxGadgets(struct GadgetInfo *);
4738 static void HandleTextbuttonGadgets(struct GadgetInfo *);
4739 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
4740 static void HandleRadiobuttons(struct GadgetInfo *);
4741 static void HandleCheckbuttons(struct GadgetInfo *);
4742 static void HandleControlButtons(struct GadgetInfo *);
4743 static void HandleDrawingAreaInfo(struct GadgetInfo *);
4744 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
4745 static boolean AskToCopyAndModifyLevelTemplate(void);
4746 static boolean getDrawModeHiRes(void);
4747 static int getTabulatorBarWidth(void);
4748 static int getTabulatorBarHeight(void);
4749 static Pixel getTabulatorBarColor(void);
4750 static int numHiresTiles(int);
4751
4752 static int num_editor_gadgets = 0;      // dynamically determined
4753
4754 static struct GadgetInfo **level_editor_gadget = NULL;
4755 static int *right_gadget_border = NULL;
4756
4757 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
4758 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
4759 static boolean draw_with_brush = FALSE;
4760 static int properties_element = 0;
4761
4762 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4763 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4764 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4765 static int undo_buffer_position = 0;
4766 static int undo_buffer_steps = 0;
4767 static int redo_buffer_steps = 0;
4768
4769 static int edit_mode;
4770 static int edit_mode_levelconfig;
4771 static int edit_mode_properties;
4772
4773 static int element_shift = 0;
4774
4775 static int editor_el_players[] =
4776 {
4777   EL_PLAYER_1,
4778   EL_PLAYER_2,
4779   EL_PLAYER_3,
4780   EL_PLAYER_4
4781 };
4782 static int *editor_el_players_ptr = editor_el_players;
4783 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
4784
4785 static int editor_hl_boulderdash[] =
4786 {
4787   EL_INTERNAL_CASCADE_BD_ACTIVE,
4788   EL_CHAR('B'),
4789   EL_CHAR('D'),
4790   EL_EMPTY,
4791 };
4792
4793 static int editor_el_boulderdash[] =
4794 {
4795   EL_EMPTY,
4796   EL_SAND,
4797   EL_BD_ROCK,
4798   EL_BD_DIAMOND,
4799
4800   EL_STEELWALL,
4801   EL_BD_WALL,
4802   EL_BD_EXPANDABLE_WALL,
4803   EL_BD_MAGIC_WALL,
4804
4805   EL_BD_AMOEBA,
4806   EL_BD_BUTTERFLY_UP,
4807   EL_BD_FIREFLY_UP,
4808   EL_EXIT_CLOSED,
4809
4810   EL_BD_BUTTERFLY_LEFT,
4811   EL_BD_FIREFLY_LEFT,
4812   EL_BD_BUTTERFLY_RIGHT,
4813   EL_BD_FIREFLY_RIGHT,
4814
4815   EL_EMPTY,
4816   EL_BD_BUTTERFLY_DOWN,
4817   EL_BD_FIREFLY_DOWN,
4818   EL_EXIT_OPEN,
4819 };
4820 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4821 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4822 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4823 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4824
4825 static int editor_hl_boulderdash_native[] =
4826 {
4827   EL_INTERNAL_CASCADE_BD_NATIVE_ACTIVE,
4828   EL_CHAR('B'),
4829   EL_CHAR('D'),
4830   EL_EMPTY,
4831 };
4832
4833 static int editor_el_boulderdash_native[] =
4834 {
4835   EL_EMPTY,
4836   EL_BD_SAND,
4837   EL_BD_ROCK,
4838   EL_BD_DIAMOND,
4839
4840   EL_BD_STEELWALL,
4841   EL_BD_WALL,
4842   EL_BD_SAND_2,
4843   EL_BD_MAGIC_WALL,
4844
4845   EL_BD_AMOEBA,
4846   EL_BD_BUTTERFLY_UP,
4847   EL_BD_FIREFLY_UP,
4848   EL_BD_EXIT_CLOSED,
4849
4850   EL_BD_BUTTERFLY_LEFT,
4851   EL_BD_FIREFLY_LEFT,
4852   EL_BD_BUTTERFLY_RIGHT,
4853   EL_BD_FIREFLY_RIGHT,
4854
4855   EL_BD_INBOX,
4856   EL_BD_BUTTERFLY_DOWN,
4857   EL_BD_FIREFLY_DOWN,
4858   EL_BD_EXIT_OPEN,
4859
4860   EL_BD_AMOEBA_2,
4861   EL_BD_BUTTERFLY_2_UP,
4862   EL_BD_FIREFLY_2_UP,
4863   EL_BD_SLIME,
4864
4865   EL_BD_BUTTERFLY_2_LEFT,
4866   EL_BD_FIREFLY_2_LEFT,
4867   EL_BD_BUTTERFLY_2_RIGHT,
4868   EL_BD_FIREFLY_2_RIGHT,
4869
4870   EL_BD_BOMB,
4871   EL_BD_BUTTERFLY_2_DOWN,
4872   EL_BD_FIREFLY_2_DOWN,
4873   EL_BD_FLYING_DIAMOND,
4874
4875   EL_BD_NITRO_PACK,
4876   EL_BD_DRAGONFLY_UP,
4877   EL_BD_STONEFLY_UP,
4878   EL_BD_DIAMOND_GLUED,
4879
4880   EL_BD_DRAGONFLY_LEFT,
4881   EL_BD_STONEFLY_LEFT,
4882   EL_BD_DRAGONFLY_RIGHT,
4883   EL_BD_STONEFLY_RIGHT,
4884
4885   EL_BD_NUT,
4886   EL_BD_DRAGONFLY_DOWN,
4887   EL_BD_STONEFLY_DOWN,
4888   EL_EMPTY,
4889
4890   EL_BD_BITER_SWITCH_1,
4891   EL_BD_BITER_UP,
4892   EL_BD_COW_UP,
4893   EL_EMPTY,
4894
4895   EL_BD_BITER_LEFT,
4896   EL_BD_COW_LEFT,
4897   EL_BD_BITER_RIGHT,
4898   EL_BD_COW_RIGHT,
4899
4900   EL_BD_VOODOO_DOLL,
4901   EL_BD_BITER_DOWN,
4902   EL_BD_COW_DOWN,
4903   EL_BD_GHOST,
4904
4905   EL_BD_SAND_GLUED,
4906   EL_BD_SAND_BALL,
4907   EL_BD_SAND_LOOSE,
4908   EL_BD_WALL_NON_SLOPED,
4909
4910   EL_BD_SAND_SLOPED_UP_LEFT,
4911   EL_BD_SAND_SLOPED_UP_RIGHT,
4912   EL_BD_WALL_SLOPED_UP_LEFT,
4913   EL_BD_WALL_SLOPED_UP_RIGHT,
4914
4915   EL_BD_SAND_SLOPED_DOWN_LEFT,
4916   EL_BD_SAND_SLOPED_DOWN_RIGHT,
4917   EL_BD_WALL_SLOPED_DOWN_LEFT,
4918   EL_BD_WALL_SLOPED_DOWN_RIGHT,
4919
4920   EL_BD_FLYING_ROCK,
4921   EL_BD_ROCK_GLUED,
4922   EL_BD_STEELWALL_SLOPED_UP_LEFT,
4923   EL_BD_STEELWALL_SLOPED_UP_RIGHT,
4924
4925   EL_BD_WAITING_ROCK,
4926   EL_BD_CHASING_ROCK,
4927   EL_BD_STEELWALL_SLOPED_DOWN_LEFT,
4928   EL_BD_STEELWALL_SLOPED_DOWN_RIGHT,
4929
4930   EL_BD_MEGA_ROCK,
4931   EL_BD_SWEET,
4932   EL_BD_INVISIBLE_EXIT_CLOSED,
4933   EL_BD_INVISIBLE_EXIT_OPEN,
4934
4935   EL_BD_STEELWALL_EXPLODABLE,
4936   EL_BD_STEELWALL_DIGGABLE,
4937   EL_BD_WALL_DIGGABLE,
4938   EL_BD_FALLING_WALL,
4939
4940   EL_BD_EXPANDABLE_WALL_HORIZONTAL,
4941   EL_BD_EXPANDABLE_WALL_VERTICAL,
4942   EL_BD_EXPANDABLE_WALL_ANY,
4943   EL_BD_EXPANDABLE_WALL_SWITCH_HORIZONTAL,
4944
4945   EL_BD_EXPANDABLE_STEELWALL_HORIZONTAL,
4946   EL_BD_EXPANDABLE_STEELWALL_VERTICAL,
4947   EL_BD_EXPANDABLE_STEELWALL_ANY,
4948   EL_BD_CREATURE_SWITCH,
4949
4950   EL_BD_BLADDER,
4951   EL_BD_BLADDER_SPENDER,
4952   EL_BD_REPLICATOR,
4953   EL_BD_REPLICATOR_SWITCH,
4954
4955   EL_BD_CONVEYOR_LEFT,
4956   EL_BD_CONVEYOR_RIGHT,
4957   EL_BD_CONVEYOR_SWITCH,
4958   EL_BD_CONVEYOR_DIR_SWITCH_NORMAL,
4959
4960   EL_BD_CLOCK,
4961   EL_BD_TIME_PENALTY,
4962   EL_BD_GRAVESTONE,
4963   EL_BD_SKELETON,
4964
4965   EL_BD_WATER,
4966   EL_BD_ACID,
4967   EL_BD_LAVA,
4968   EL_BD_BOX,
4969
4970   EL_BD_GATE_1,
4971   EL_BD_GATE_2,
4972   EL_BD_GATE_3,
4973   EL_BD_TRAPPED_DIAMOND,
4974
4975   EL_BD_KEY_1,
4976   EL_BD_KEY_2,
4977   EL_BD_KEY_3,
4978   EL_BD_DIAMOND_KEY,
4979
4980   EL_BD_WALL_KEY_1,
4981   EL_BD_WALL_KEY_2,
4982   EL_BD_WALL_KEY_3,
4983   EL_BD_WALL_DIAMOND,
4984
4985   EL_BD_GRAVITY_SWITCH,
4986   EL_BD_PNEUMATIC_HAMMER,
4987   EL_BD_TELEPORTER,
4988   EL_BD_POT,
4989
4990   EL_BD_PLAYER,
4991   EL_BD_PLAYER_WITH_BOMB,
4992   EL_BD_PLAYER_GLUED,
4993   EL_BD_PLAYER_STIRRING,
4994 };
4995 static int *editor_hl_boulderdash_native_ptr = editor_hl_boulderdash_native;
4996 static int *editor_el_boulderdash_native_ptr = editor_el_boulderdash_native;
4997 static int num_editor_hl_boulderdash_native = ARRAY_SIZE(editor_hl_boulderdash_native);
4998 static int num_editor_el_boulderdash_native = ARRAY_SIZE(editor_el_boulderdash_native);
4999
5000 static int editor_hl_boulderdash_effects[] =
5001 {
5002   EL_INTERNAL_CASCADE_BD_EFFECTS_ACTIVE,
5003   EL_CHAR('B'),
5004   EL_CHAR('D'),
5005   EL_CHAR('E'),
5006 };
5007
5008 static int editor_el_boulderdash_effects[] =
5009 {
5010   EL_BD_DIAMOND_FALLING,
5011   EL_BD_ROCK_FALLING,
5012   EL_BD_MEGA_ROCK_FALLING,
5013   EL_BD_FLYING_DIAMOND_FLYING,
5014
5015   EL_BD_FALLING_WALL_FALLING,
5016   EL_BD_NITRO_PACK_FALLING,
5017   EL_BD_NUT_FALLING,
5018   EL_BD_FLYING_ROCK_FLYING,
5019
5020   EL_BD_PLAYER_GROWING_1,
5021   EL_BD_PLAYER_GROWING_2,
5022   EL_BD_PLAYER_GROWING_3,
5023   EL_BD_PLAYER,
5024
5025   EL_BD_PLAYER_WITH_BOMB,
5026   EL_BD_PLAYER_STIRRING,
5027   EL_BD_EXIT_OPEN,
5028   EL_BD_INVISIBLE_EXIT_OPEN,
5029
5030   EL_BD_BLADDER_1,
5031   EL_BD_BLADDER_2,
5032   EL_BD_BLADDER_3,
5033   EL_BD_BLADDER_4,
5034
5035   EL_BD_BLADDER_5,
5036   EL_BD_BLADDER_6,
5037   EL_BD_BLADDER_7,
5038   EL_BD_BLADDER_8,
5039
5040   EL_BD_SAND_2,
5041   EL_BD_COW_ENCLOSED_1,
5042   EL_BD_COW_ENCLOSED_2,
5043   EL_BD_COW_ENCLOSED_3,
5044
5045   EL_BD_COW_ENCLOSED_4,
5046   EL_BD_COW_ENCLOSED_5,
5047   EL_BD_COW_ENCLOSED_6,
5048   EL_BD_COW_ENCLOSED_7,
5049
5050   EL_BD_WATER_1,
5051   EL_BD_WATER_2,
5052   EL_BD_WATER_3,
5053   EL_BD_WATER_4,
5054
5055   EL_BD_WATER_5,
5056   EL_BD_WATER_6,
5057   EL_BD_WATER_7,
5058   EL_BD_WATER_8,
5059
5060   EL_BD_WATER_9,
5061   EL_BD_WATER_10,
5062   EL_BD_WATER_11,
5063   EL_BD_WATER_12,
5064
5065   EL_BD_WATER_13,
5066   EL_BD_WATER_14,
5067   EL_BD_WATER_15,
5068   EL_BD_WATER_16,
5069
5070   EL_BD_BOMB_TICKING_1,
5071   EL_BD_BOMB_TICKING_2,
5072   EL_BD_BOMB_TICKING_3,
5073   EL_BD_BOMB_TICKING_4,
5074
5075   EL_BD_BOMB_TICKING_5,
5076   EL_BD_BOMB_TICKING_6,
5077   EL_BD_BOMB_TICKING_7,
5078   EL_EMPTY,
5079
5080   EL_BD_BOMB_EXPLODING_1,
5081   EL_BD_BOMB_EXPLODING_2,
5082   EL_BD_BOMB_EXPLODING_3,
5083   EL_BD_BOMB_EXPLODING_4,
5084
5085   EL_BD_NUT_BREAKING_1,
5086   EL_BD_NUT_BREAKING_2,
5087   EL_BD_NUT_BREAKING_3,
5088   EL_BD_NUT_BREAKING_4,
5089
5090   EL_BD_EXPLODING_1,
5091   EL_BD_EXPLODING_2,
5092   EL_BD_EXPLODING_3,
5093   EL_BD_EXPLODING_4,
5094
5095   EL_BD_EXPLODING_5,
5096   EL_BD_TIME_PENALTY,
5097   EL_BD_DIAMOND_GROWING_1,
5098   EL_BD_DIAMOND_GROWING_2,
5099
5100   EL_BD_DIAMOND_GROWING_3,
5101   EL_BD_DIAMOND_GROWING_4,
5102   EL_BD_DIAMOND_GROWING_5,
5103   EL_BD_NITRO_PACK_EXPLODING,
5104
5105   EL_BD_NITRO_PACK_EXPLODING_1,
5106   EL_BD_NITRO_PACK_EXPLODING_2,
5107   EL_BD_NITRO_PACK_EXPLODING_3,
5108   EL_BD_NITRO_PACK_EXPLODING_4,
5109
5110   EL_BD_ROCK_GROWING_1,
5111   EL_BD_ROCK_GROWING_2,
5112   EL_BD_ROCK_GROWING_3,
5113   EL_BD_ROCK_GROWING_4,
5114
5115   EL_BD_STEELWALL_GROWING_1,
5116   EL_BD_STEELWALL_GROWING_2,
5117   EL_BD_STEELWALL_GROWING_3,
5118   EL_BD_STEELWALL_GROWING_4,
5119
5120   EL_BD_CLOCK_GROWING_1,
5121   EL_BD_CLOCK_GROWING_2,
5122   EL_BD_CLOCK_GROWING_3,
5123   EL_BD_CLOCK_GROWING_4,
5124
5125   EL_BD_GHOST_EXPLODING_1,
5126   EL_BD_GHOST_EXPLODING_2,
5127   EL_BD_GHOST_EXPLODING_3,
5128   EL_BD_GHOST_EXPLODING_4,
5129 };
5130 static int *editor_hl_boulderdash_effects_ptr = editor_hl_boulderdash_effects;
5131 static int *editor_el_boulderdash_effects_ptr = editor_el_boulderdash_effects;
5132 static int num_editor_hl_boulderdash_effects = ARRAY_SIZE(editor_hl_boulderdash_effects);
5133 static int num_editor_el_boulderdash_effects = ARRAY_SIZE(editor_el_boulderdash_effects);
5134
5135 static int editor_hl_emerald_mine[] =
5136 {
5137   EL_INTERNAL_CASCADE_EM_ACTIVE,
5138   EL_CHAR('E'),
5139   EL_CHAR('M'),
5140   EL_EMPTY,
5141 };
5142
5143 static int editor_el_emerald_mine[] =
5144 {
5145   EL_SAND,
5146   EL_ROCK,
5147   EL_QUICKSAND_EMPTY,
5148   EL_QUICKSAND_FULL,
5149
5150   EL_STEELWALL,
5151   EL_WALL,
5152   EL_WALL_SLIPPERY,
5153   EL_MAGIC_WALL,
5154
5155   EL_EMERALD,
5156   EL_DIAMOND,
5157   EL_NUT,
5158   EL_BOMB,
5159
5160   EL_EM_DYNAMITE,
5161   EL_EM_DYNAMITE_ACTIVE,
5162   EL_EM_EXIT_CLOSED,
5163   EL_EM_EXIT_OPEN,
5164
5165   EL_YAMYAM_UP,
5166   EL_BUG_UP,
5167   EL_SPACESHIP_UP,
5168   EL_ROBOT,
5169
5170   EL_BUG_LEFT,
5171   EL_SPACESHIP_LEFT,
5172   EL_BUG_RIGHT,
5173   EL_SPACESHIP_RIGHT,
5174
5175   EL_ROBOT_WHEEL,
5176   EL_BUG_DOWN,
5177   EL_SPACESHIP_DOWN,
5178   EL_INVISIBLE_WALL,
5179
5180   EL_ACID_POOL_TOPLEFT,
5181   EL_ACID,
5182   EL_ACID_POOL_TOPRIGHT,
5183   EL_AMOEBA_DROP,
5184
5185   EL_ACID_POOL_BOTTOMLEFT,
5186   EL_ACID_POOL_BOTTOM,
5187   EL_ACID_POOL_BOTTOMRIGHT,
5188   EL_AMOEBA_WET,
5189
5190   EL_EM_KEY_1,
5191   EL_EM_KEY_2,
5192   EL_EM_KEY_3,
5193   EL_EM_KEY_4,
5194
5195   EL_EM_GATE_1,
5196   EL_EM_GATE_2,
5197   EL_EM_GATE_3,
5198   EL_EM_GATE_4,
5199
5200   EL_EM_GATE_1_GRAY,
5201   EL_EM_GATE_2_GRAY,
5202   EL_EM_GATE_3_GRAY,
5203   EL_EM_GATE_4_GRAY,
5204 };
5205 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
5206 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
5207 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
5208 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
5209
5210 static int editor_hl_emerald_mine_club[] =
5211 {
5212   EL_INTERNAL_CASCADE_EMC_ACTIVE,
5213   EL_CHAR('E'),
5214   EL_CHAR('M'),
5215   EL_CHAR('C'),
5216 };
5217
5218 static int editor_el_emerald_mine_club[] =
5219 {
5220   EL_EMC_KEY_5,
5221   EL_EMC_KEY_6,
5222   EL_EMC_KEY_7,
5223   EL_EMC_KEY_8,
5224
5225   EL_EMC_GATE_5,
5226   EL_EMC_GATE_6,
5227   EL_EMC_GATE_7,
5228   EL_EMC_GATE_8,
5229
5230   EL_EMC_GATE_5_GRAY,
5231   EL_EMC_GATE_6_GRAY,
5232   EL_EMC_GATE_7_GRAY,
5233   EL_EMC_GATE_8_GRAY,
5234
5235   EL_EMC_STEELWALL_1,
5236   EL_EMC_STEELWALL_2,
5237   EL_EMC_STEELWALL_3,
5238   EL_EMC_STEELWALL_4,
5239
5240   EL_EMC_WALL_13,
5241   EL_EMC_WALL_14,
5242   EL_EMC_WALL_15,
5243   EL_EMC_WALL_16,
5244
5245   EL_EMC_WALL_SLIPPERY_1,
5246   EL_EMC_WALL_SLIPPERY_2,
5247   EL_EMC_WALL_SLIPPERY_3,
5248   EL_EMC_WALL_SLIPPERY_4,
5249
5250   EL_EMC_WALL_1,
5251   EL_EMC_WALL_2,
5252   EL_EMC_WALL_3,
5253   EL_EMC_WALL_4,
5254
5255   EL_EMC_WALL_5,
5256   EL_EMC_WALL_6,
5257   EL_EMC_WALL_7,
5258   EL_EMC_WALL_8,
5259
5260   EL_EMC_WALL_9,
5261   EL_EMC_WALL_10,
5262   EL_EMC_WALL_11,
5263   EL_EMC_WALL_12,
5264
5265   EL_EMC_GRASS,
5266   EL_EMC_FAKE_GRASS,
5267   EL_EMC_PLANT,
5268   EL_EMC_DRIPPER,
5269
5270   EL_EMC_MAGIC_BALL,
5271   EL_EMC_MAGIC_BALL_SWITCH,
5272   EL_EMC_LENSES,
5273   EL_EMC_MAGNIFIER,
5274
5275   EL_SPRING_LEFT,
5276   EL_SPRING,
5277   EL_SPRING_RIGHT,
5278   EL_EMC_SPRING_BUMPER,
5279
5280   EL_BALLOON,
5281   EL_YAMYAM_UP,
5282   EL_BALLOON_SWITCH_UP,
5283   EL_BALLOON_SWITCH_ANY,
5284
5285   EL_YAMYAM_LEFT,
5286   EL_BALLOON_SWITCH_LEFT,
5287   EL_YAMYAM_RIGHT,
5288   EL_BALLOON_SWITCH_RIGHT,
5289
5290   EL_EMC_ANDROID,
5291   EL_YAMYAM_DOWN,
5292   EL_BALLOON_SWITCH_DOWN,
5293   EL_BALLOON_SWITCH_NONE,
5294 };
5295 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
5296 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
5297 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
5298 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
5299
5300 static int editor_hl_rnd[] =
5301 {
5302   EL_INTERNAL_CASCADE_RND_ACTIVE,
5303   EL_CHAR('R'),
5304   EL_CHAR('N'),
5305   EL_CHAR('D'),
5306 };
5307
5308 static int editor_el_rnd[] =
5309 {
5310   EL_DYNAMITE,                  // RND
5311   EL_DYNAMITE_ACTIVE,           // RND
5312   EL_EMPTY,
5313   EL_EMPTY,
5314
5315   EL_KEY_1,
5316   EL_KEY_2,
5317   EL_KEY_3,
5318   EL_KEY_4,
5319
5320   EL_GATE_1,
5321   EL_GATE_2,
5322   EL_GATE_3,
5323   EL_GATE_4,
5324
5325   EL_GATE_1_GRAY,
5326   EL_GATE_2_GRAY,
5327   EL_GATE_3_GRAY,
5328   EL_GATE_4_GRAY,
5329
5330   EL_ARROW_LEFT,
5331   EL_ARROW_RIGHT,
5332   EL_ARROW_UP,
5333   EL_ARROW_DOWN,
5334
5335   EL_AMOEBA_DEAD,
5336   EL_AMOEBA_DRY,
5337   EL_AMOEBA_FULL,
5338   EL_GAME_OF_LIFE,
5339
5340   EL_EMERALD_YELLOW,
5341   EL_EMERALD_RED,
5342   EL_EMERALD_PURPLE,
5343   EL_BIOMAZE,
5344
5345   EL_WALL_EMERALD_YELLOW,
5346   EL_WALL_EMERALD_RED,
5347   EL_WALL_EMERALD_PURPLE,
5348   EL_WALL_BD_DIAMOND,
5349
5350   EL_SPEED_PILL,
5351   EL_PACMAN_UP,
5352   EL_TIME_ORB_FULL,
5353   EL_TIME_ORB_EMPTY,
5354
5355   EL_PACMAN_LEFT,
5356   EL_DARK_YAMYAM,
5357   EL_PACMAN_RIGHT,
5358   EL_YAMYAM,                    // RND
5359
5360   EL_BLACK_ORB,
5361   EL_PACMAN_DOWN,
5362   EL_LAMP,
5363   EL_LAMP_ACTIVE,
5364
5365   EL_DYNABOMB_INCREASE_NUMBER,
5366   EL_DYNABOMB_INCREASE_SIZE,
5367   EL_DYNABOMB_INCREASE_POWER,
5368   EL_STONEBLOCK,
5369
5370   EL_MOLE,
5371   EL_PENGUIN,
5372   EL_PIG,
5373   EL_DRAGON,
5374
5375   EL_BUG,
5376   EL_MOLE_UP,
5377   EL_BD_BUTTERFLY,
5378   EL_BD_FIREFLY,
5379
5380   EL_MOLE_LEFT,
5381   EL_SATELLITE,
5382   EL_MOLE_RIGHT,
5383   EL_PACMAN,
5384
5385   EL_SPACESHIP,
5386   EL_MOLE_DOWN,
5387   EL_INVISIBLE_STEELWALL,
5388   EL_INVISIBLE_WALL,
5389
5390   EL_EXPANDABLE_WALL,
5391   EL_EXPANDABLE_WALL_HORIZONTAL,
5392   EL_EXPANDABLE_WALL_VERTICAL,
5393   EL_EXPANDABLE_WALL_ANY,
5394 };
5395 static int *editor_hl_rnd_ptr = editor_hl_rnd;
5396 static int *editor_el_rnd_ptr = editor_el_rnd;
5397 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
5398 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
5399
5400 static int editor_hl_sokoban[] =
5401 {
5402   EL_INTERNAL_CASCADE_SB_ACTIVE,
5403   EL_CHAR('S'),
5404   EL_CHAR('B'),
5405   EL_EMPTY,
5406 };
5407
5408 static int editor_el_sokoban[] =
5409 {
5410   EL_SOKOBAN_OBJECT,
5411   EL_SOKOBAN_FIELD_EMPTY,
5412   EL_SOKOBAN_FIELD_FULL,
5413   EL_SOKOBAN_FIELD_PLAYER,
5414 };
5415 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
5416 static int *editor_el_sokoban_ptr = editor_el_sokoban;
5417 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
5418 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
5419
5420 static int editor_hl_supaplex[] =
5421 {
5422   EL_INTERNAL_CASCADE_SP_ACTIVE,
5423   EL_CHAR('S'),
5424   EL_CHAR('P'),
5425   EL_EMPTY,
5426 };
5427
5428 static int editor_el_supaplex[] =
5429 {
5430   EL_SP_MURPHY,
5431   EL_EMPTY,
5432   EL_SP_BASE,
5433   EL_SP_BUGGY_BASE,
5434
5435   EL_SP_INFOTRON,
5436   EL_SP_ZONK,
5437   EL_SP_SNIKSNAK,
5438   EL_SP_ELECTRON,
5439
5440   EL_SP_DISK_RED,
5441   EL_SP_DISK_ORANGE,
5442   EL_SP_DISK_YELLOW,
5443   EL_SP_TERMINAL,
5444
5445   EL_SP_EXIT_CLOSED,
5446   EL_SP_PORT_HORIZONTAL,
5447   EL_SP_PORT_VERTICAL,
5448   EL_SP_PORT_ANY,
5449
5450   EL_SP_PORT_LEFT,
5451   EL_SP_PORT_RIGHT,
5452   EL_SP_PORT_UP,
5453   EL_SP_PORT_DOWN,
5454
5455   EL_SP_GRAVITY_PORT_LEFT,
5456   EL_SP_GRAVITY_PORT_RIGHT,
5457   EL_SP_GRAVITY_PORT_UP,
5458   EL_SP_GRAVITY_PORT_DOWN,
5459
5460   EL_SP_GRAVITY_ON_PORT_LEFT,
5461   EL_SP_GRAVITY_ON_PORT_RIGHT,
5462   EL_SP_GRAVITY_ON_PORT_UP,
5463   EL_SP_GRAVITY_ON_PORT_DOWN,
5464
5465   EL_SP_GRAVITY_OFF_PORT_LEFT,
5466   EL_SP_GRAVITY_OFF_PORT_RIGHT,
5467   EL_SP_GRAVITY_OFF_PORT_UP,
5468   EL_SP_GRAVITY_OFF_PORT_DOWN,
5469
5470   EL_SP_HARDWARE_GRAY,
5471   EL_SP_HARDWARE_GREEN,
5472   EL_SP_HARDWARE_BLUE,
5473   EL_SP_HARDWARE_RED,
5474
5475   EL_SP_HARDWARE_BASE_1,
5476   EL_SP_HARDWARE_BASE_2,
5477   EL_SP_HARDWARE_BASE_3,
5478   EL_SP_HARDWARE_BASE_4,
5479
5480   EL_SP_HARDWARE_BASE_5,
5481   EL_SP_HARDWARE_BASE_6,
5482   EL_SP_HARDWARE_YELLOW,
5483   EL_SP_CHIP_TOP,
5484
5485   EL_SP_CHIP_SINGLE,
5486   EL_SP_CHIP_LEFT,
5487   EL_SP_CHIP_RIGHT,
5488   EL_SP_CHIP_BOTTOM,
5489 };
5490 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
5491 static int *editor_el_supaplex_ptr = editor_el_supaplex;
5492 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
5493 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
5494
5495 static int editor_hl_diamond_caves[] =
5496 {
5497   EL_INTERNAL_CASCADE_DC_ACTIVE,
5498   EL_CHAR('D'),
5499   EL_CHAR('C'),
5500   EL_CHAR('2'),
5501 };
5502
5503 static int editor_el_diamond_caves[] =
5504 {
5505   EL_EM_STEEL_EXIT_CLOSED,      // DC2
5506   EL_EM_STEEL_EXIT_OPEN,        // DC2
5507   EL_WALL_EMERALD,              // DC2
5508   EL_WALL_DIAMOND,              // DC2
5509
5510   EL_PEARL,
5511   EL_CRYSTAL,
5512   EL_WALL_PEARL,
5513   EL_WALL_CRYSTAL,
5514
5515   EL_CONVEYOR_BELT_1_LEFT,
5516   EL_CONVEYOR_BELT_1_MIDDLE,
5517   EL_CONVEYOR_BELT_1_RIGHT,
5518   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
5519
5520   EL_CONVEYOR_BELT_2_LEFT,
5521   EL_CONVEYOR_BELT_2_MIDDLE,
5522   EL_CONVEYOR_BELT_2_RIGHT,
5523   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
5524
5525   EL_CONVEYOR_BELT_3_LEFT,
5526   EL_CONVEYOR_BELT_3_MIDDLE,
5527   EL_CONVEYOR_BELT_3_RIGHT,
5528   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
5529
5530   EL_CONVEYOR_BELT_4_LEFT,
5531   EL_CONVEYOR_BELT_4_MIDDLE,
5532   EL_CONVEYOR_BELT_4_RIGHT,
5533   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
5534
5535   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
5536   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
5537   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
5538   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
5539
5540   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
5541   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
5542   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
5543   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
5544
5545   EL_TIMEGATE_CLOSED,
5546   EL_TIMEGATE_OPEN,
5547   EL_TIMEGATE_SWITCH,
5548   EL_DC_TIMEGATE_SWITCH,
5549
5550   EL_SWITCHGATE_CLOSED,
5551   EL_SWITCHGATE_OPEN,
5552   EL_SWITCHGATE_SWITCH_UP,
5553   EL_SWITCHGATE_SWITCH_DOWN,
5554
5555   EL_LIGHT_SWITCH,
5556   EL_LIGHT_SWITCH_ACTIVE,
5557   EL_DC_SWITCHGATE_SWITCH_UP,
5558   EL_DC_SWITCHGATE_SWITCH_DOWN,
5559
5560   EL_STEEL_EXIT_CLOSED,
5561   EL_STEEL_EXIT_OPEN,
5562   EL_STEELWALL_SLIPPERY,
5563   EL_INVISIBLE_SAND,
5564
5565   EL_QUICKSAND_FAST_EMPTY,
5566   EL_QUICKSAND_FAST_FULL,
5567   EL_LANDMINE,
5568   EL_DC_LANDMINE,
5569
5570   EL_SHIELD_NORMAL,
5571   EL_SHIELD_DEADLY,
5572   EL_EXTRA_TIME,
5573   EL_DC_MAGIC_WALL,
5574
5575   EL_ENVELOPE_1,
5576   EL_ENVELOPE_2,
5577   EL_ENVELOPE_3,
5578   EL_ENVELOPE_4,
5579
5580   EL_SIGN_RADIOACTIVITY,
5581   EL_SIGN_WHEELCHAIR,
5582   EL_SIGN_PARKING,
5583   EL_SIGN_NO_ENTRY,
5584
5585   EL_SIGN_GIVE_WAY,
5586   EL_SIGN_ENTRY_FORBIDDEN,
5587   EL_SIGN_EMERGENCY_EXIT,
5588   EL_SIGN_YIN_YANG,
5589
5590 #if 0
5591   EL_SIGN_SPERMS,
5592   EL_SIGN_BULLET,
5593   EL_SIGN_HEART,
5594   EL_SIGN_CROSS,
5595
5596   EL_SIGN_FRANKIE,
5597   EL_EMPTY,
5598   EL_EMPTY,
5599   EL_EMPTY,
5600
5601   EL_SPERMS,
5602   EL_BULLET,
5603   EL_HEART,
5604   EL_CROSS,
5605
5606   EL_FRANKIE,
5607   EL_EMPTY,
5608   EL_EMPTY,
5609   EL_EMPTY,
5610 #endif
5611
5612   EL_DC_STEELWALL_2_SINGLE,
5613   EL_DC_STEELWALL_2_TOP,
5614   EL_SIGN_EXCLAMATION,
5615   EL_SIGN_STOP,
5616
5617   EL_DC_STEELWALL_2_LEFT,
5618   EL_DC_STEELWALL_2_MIDDLE,
5619   EL_DC_STEELWALL_2_HORIZONTAL,
5620   EL_DC_STEELWALL_2_RIGHT,
5621
5622   EL_DC_STEELWALL_1_TOPLEFT,
5623   EL_DC_STEELWALL_2_VERTICAL,
5624   EL_DC_STEELWALL_1_TOPRIGHT,
5625   EL_DC_GATE_WHITE,
5626
5627   EL_DC_STEELWALL_1_VERTICAL,
5628   EL_DC_STEELWALL_2_BOTTOM,
5629   EL_DC_KEY_WHITE,
5630   EL_DC_GATE_WHITE_GRAY,
5631
5632   EL_DC_STEELWALL_1_BOTTOMLEFT,
5633   EL_DC_STEELWALL_1_HORIZONTAL,
5634   EL_DC_STEELWALL_1_BOTTOMRIGHT,
5635   EL_DC_GATE_FAKE_GRAY,
5636
5637   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
5638   EL_DC_STEELWALL_1_BOTTOM,
5639   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
5640   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
5641
5642   EL_DC_STEELWALL_1_RIGHT,
5643   EL_EMPTY,
5644   EL_DC_STEELWALL_1_LEFT,
5645   EL_EXPANDABLE_STEELWALL_VERTICAL,
5646
5647   EL_DC_STEELWALL_1_TOPRIGHT_2,
5648   EL_DC_STEELWALL_1_TOP,
5649   EL_DC_STEELWALL_1_TOPLEFT_2,
5650   EL_EXPANDABLE_STEELWALL_ANY,
5651 };
5652 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
5653 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
5654 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
5655 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
5656
5657 static int editor_hl_dx_boulderdash[] =
5658 {
5659   EL_INTERNAL_CASCADE_DX_ACTIVE,
5660   EL_CHAR('D'),
5661   EL_CHAR('X'),
5662   EL_EMPTY,
5663 };
5664
5665 static int editor_el_dx_boulderdash[] =
5666 {
5667   EL_EMPTY,
5668   EL_TUBE_RIGHT_DOWN,
5669   EL_TUBE_HORIZONTAL_DOWN,
5670   EL_TUBE_LEFT_DOWN,
5671
5672   EL_TUBE_HORIZONTAL,
5673   EL_TUBE_VERTICAL_RIGHT,
5674   EL_TUBE_ANY,
5675   EL_TUBE_VERTICAL_LEFT,
5676
5677   EL_TUBE_VERTICAL,
5678   EL_TUBE_RIGHT_UP,
5679   EL_TUBE_HORIZONTAL_UP,
5680   EL_TUBE_LEFT_UP,
5681
5682   EL_TRAP,
5683   EL_DX_SUPABOMB,
5684   EL_EMPTY,
5685   EL_EMPTY
5686 };
5687 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
5688 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
5689 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
5690 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
5691
5692 static int editor_hl_mirror_magic[] =
5693 {
5694   EL_INTERNAL_CASCADE_MM_ACTIVE,
5695   EL_CHAR('M'),
5696   EL_CHAR('M'),
5697   EL_EMPTY,
5698 };
5699
5700 static int editor_el_mirror_magic[] =
5701 {
5702   EL_MM_MCDUFFIN_RIGHT,
5703   EL_MM_MCDUFFIN_UP,
5704   EL_MM_MCDUFFIN_LEFT,
5705   EL_MM_MCDUFFIN_DOWN,
5706
5707   EL_MM_MIRROR_START,
5708   EL_MM_MIRROR_FIXED_START,
5709   EL_MM_POLARIZER_START,
5710   EL_MM_POLARIZER_CROSS_START,
5711
5712   EL_MM_TELEPORTER_RED_START,
5713   EL_MM_TELEPORTER_YELLOW_START,
5714   EL_MM_TELEPORTER_GREEN_START,
5715   EL_MM_TELEPORTER_BLUE_START,
5716
5717   EL_MM_PRISM,
5718   EL_MM_FUSE_ACTIVE,
5719   EL_MM_PACMAN_RIGHT,
5720   EL_MM_EXIT_CLOSED,
5721
5722   EL_MM_KETTLE,
5723   EL_MM_BOMB,
5724   EL_MM_KEY,
5725   EL_MM_FUEL_FULL,
5726
5727   EL_MM_LIGHTBULB,
5728   EL_MM_LIGHTBULB_ACTIVE,
5729   EL_MM_GRAY_BALL,
5730   EL_MM_LIGHTBALL,
5731
5732   EL_MM_STEEL_WALL,
5733   EL_MM_WOODEN_WALL,
5734   EL_MM_ICE_WALL,
5735   EL_MM_AMOEBA_WALL,
5736
5737   EL_MM_STEEL_LOCK,
5738   EL_MM_WOODEN_LOCK,
5739   EL_MM_STEEL_BLOCK,
5740   EL_MM_WOODEN_BLOCK,
5741
5742   EL_MM_STEEL_GRID_FIXED_1,
5743   EL_MM_STEEL_GRID_FIXED_2,
5744   EL_MM_STEEL_GRID_FIXED_3,
5745   EL_MM_STEEL_GRID_FIXED_4,
5746
5747   EL_MM_WOODEN_GRID_FIXED_1,
5748   EL_MM_WOODEN_GRID_FIXED_2,
5749   EL_MM_WOODEN_GRID_FIXED_3,
5750   EL_MM_WOODEN_GRID_FIXED_4,
5751
5752   EL_MM_ENVELOPE_1,
5753   EL_MM_ENVELOPE_2,
5754   EL_MM_ENVELOPE_3,
5755   EL_MM_ENVELOPE_4
5756 };
5757 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
5758 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
5759 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
5760 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
5761
5762 static int editor_hl_deflektor[] =
5763 {
5764   EL_INTERNAL_CASCADE_DF_ACTIVE,
5765   EL_CHAR('D'),
5766   EL_CHAR('F'),
5767   EL_EMPTY,
5768 };
5769
5770 static int editor_el_deflektor[] =
5771 {
5772   EL_DF_LASER_RIGHT,
5773   EL_DF_LASER_UP,
5774   EL_DF_LASER_LEFT,
5775   EL_DF_LASER_DOWN,
5776
5777   EL_DF_RECEIVER_RIGHT,
5778   EL_DF_RECEIVER_UP,
5779   EL_DF_RECEIVER_LEFT,
5780   EL_DF_RECEIVER_DOWN,
5781
5782   EL_DF_MIRROR_START,
5783   EL_DF_MIRROR_ROTATING_START,
5784   EL_DF_MIRROR_FIXED_START,
5785   EL_DF_CELL,
5786
5787   EL_DF_FIBRE_OPTIC_RED_1,
5788   EL_DF_FIBRE_OPTIC_YELLOW_1,
5789   EL_DF_FIBRE_OPTIC_GREEN_1,
5790   EL_DF_FIBRE_OPTIC_BLUE_1,
5791
5792   EL_DF_STEEL_GRID_FIXED_START,
5793   EL_DF_STEEL_GRID_ROTATING_START,
5794   EL_DF_WOODEN_GRID_FIXED_START,
5795   EL_DF_WOODEN_GRID_ROTATING_START,
5796
5797   EL_DF_STEEL_WALL,
5798   EL_DF_WOODEN_WALL,
5799   EL_DF_REFRACTOR,
5800   EL_DF_MINE,
5801
5802   EL_DF_SLOPE_1,
5803   EL_DF_SLOPE_2,
5804   EL_DF_SLOPE_3,
5805   EL_DF_SLOPE_4
5806 };
5807 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
5808 static int *editor_el_deflektor_ptr = editor_el_deflektor;
5809 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
5810 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
5811
5812 static int editor_hl_chars[] =
5813 {
5814   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
5815   EL_CHAR('T'),
5816   EL_CHAR('X'),
5817   EL_CHAR('T'),
5818 };
5819
5820 static int editor_el_chars[] =
5821 {
5822   EL_CHAR(' '),
5823   EL_CHAR('!'),
5824   EL_CHAR('"'),
5825   EL_CHAR('#'),
5826
5827   EL_CHAR('$'),
5828   EL_CHAR('%'),
5829   EL_CHAR('&'),
5830   EL_CHAR('\''),
5831
5832   EL_CHAR('('),
5833   EL_CHAR(')'),
5834   EL_CHAR('*'),
5835   EL_CHAR('+'),
5836
5837   EL_CHAR(','),
5838   EL_CHAR('-'),
5839   EL_CHAR('.'),
5840   EL_CHAR('/'),
5841
5842   EL_CHAR('0'),
5843   EL_CHAR('1'),
5844   EL_CHAR('2'),
5845   EL_CHAR('3'),
5846
5847   EL_CHAR('4'),
5848   EL_CHAR('5'),
5849   EL_CHAR('6'),
5850   EL_CHAR('7'),
5851
5852   EL_CHAR('8'),
5853   EL_CHAR('9'),
5854   EL_CHAR(':'),
5855   EL_CHAR(';'),
5856
5857   EL_CHAR('<'),
5858   EL_CHAR('='),
5859   EL_CHAR('>'),
5860   EL_CHAR('?'),
5861
5862   EL_CHAR('@'),
5863   EL_CHAR('A'),
5864   EL_CHAR('B'),
5865   EL_CHAR('C'),
5866
5867   EL_CHAR('D'),
5868   EL_CHAR('E'),
5869   EL_CHAR('F'),
5870   EL_CHAR('G'),
5871
5872   EL_CHAR('H'),
5873   EL_CHAR('I'),
5874   EL_CHAR('J'),
5875   EL_CHAR('K'),
5876
5877   EL_CHAR('L'),
5878   EL_CHAR('M'),
5879   EL_CHAR('N'),
5880   EL_CHAR('O'),
5881
5882   EL_CHAR('P'),
5883   EL_CHAR('Q'),
5884   EL_CHAR('R'),
5885   EL_CHAR('S'),
5886
5887   EL_CHAR('T'),
5888   EL_CHAR('U'),
5889   EL_CHAR('V'),
5890   EL_CHAR('W'),
5891
5892   EL_CHAR('X'),
5893   EL_CHAR('Y'),
5894   EL_CHAR('Z'),
5895   EL_CHAR('['),
5896
5897   EL_CHAR('\\'),
5898   EL_CHAR(']'),
5899   EL_CHAR('^'),
5900   EL_CHAR('_'),
5901
5902   EL_CHAR(CHAR_BYTE_COPYRIGHT),
5903   EL_CHAR(CHAR_BYTE_UMLAUT_A),
5904   EL_CHAR(CHAR_BYTE_UMLAUT_O),
5905   EL_CHAR(CHAR_BYTE_UMLAUT_U),
5906
5907   EL_CHAR(CHAR_BYTE_DEGREE),
5908   EL_CHAR(CHAR_BYTE_REGISTERED),
5909   EL_CHAR(FONT_ASCII_CURSOR),
5910   EL_CHAR(FONT_ASCII_BUTTON),
5911
5912   EL_CHAR(FONT_ASCII_UP),
5913   EL_CHAR(FONT_ASCII_DOWN),
5914   EL_CHAR(' '),
5915   EL_CHAR(' ')
5916 };
5917 static int *editor_hl_chars_ptr = editor_hl_chars;
5918 static int *editor_el_chars_ptr = editor_el_chars;
5919 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
5920 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
5921
5922 static int editor_hl_steel_chars[] =
5923 {
5924   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
5925   EL_STEEL_CHAR('T'),
5926   EL_STEEL_CHAR('X'),
5927   EL_STEEL_CHAR('T'),
5928 };
5929
5930 static int editor_el_steel_chars[] =
5931 {
5932   EL_STEEL_CHAR(' '),
5933   EL_STEEL_CHAR('!'),
5934   EL_STEEL_CHAR('"'),
5935   EL_STEEL_CHAR('#'),
5936
5937   EL_STEEL_CHAR('$'),
5938   EL_STEEL_CHAR('%'),
5939   EL_STEEL_CHAR('&'),
5940   EL_STEEL_CHAR('\''),
5941
5942   EL_STEEL_CHAR('('),
5943   EL_STEEL_CHAR(')'),
5944   EL_STEEL_CHAR('*'),
5945   EL_STEEL_CHAR('+'),
5946
5947   EL_STEEL_CHAR(','),
5948   EL_STEEL_CHAR('-'),
5949   EL_STEEL_CHAR('.'),
5950   EL_STEEL_CHAR('/'),
5951
5952   EL_STEEL_CHAR('0'),
5953   EL_STEEL_CHAR('1'),
5954   EL_STEEL_CHAR('2'),
5955   EL_STEEL_CHAR('3'),
5956
5957   EL_STEEL_CHAR('4'),
5958   EL_STEEL_CHAR('5'),
5959   EL_STEEL_CHAR('6'),
5960   EL_STEEL_CHAR('7'),
5961
5962   EL_STEEL_CHAR('8'),
5963   EL_STEEL_CHAR('9'),
5964   EL_STEEL_CHAR(':'),
5965   EL_STEEL_CHAR(';'),
5966
5967   EL_STEEL_CHAR('<'),
5968   EL_STEEL_CHAR('='),
5969   EL_STEEL_CHAR('>'),
5970   EL_STEEL_CHAR('?'),
5971
5972   EL_STEEL_CHAR('@'),
5973   EL_STEEL_CHAR('A'),
5974   EL_STEEL_CHAR('B'),
5975   EL_STEEL_CHAR('C'),
5976
5977   EL_STEEL_CHAR('D'),
5978   EL_STEEL_CHAR('E'),
5979   EL_STEEL_CHAR('F'),
5980   EL_STEEL_CHAR('G'),
5981
5982   EL_STEEL_CHAR('H'),
5983   EL_STEEL_CHAR('I'),
5984   EL_STEEL_CHAR('J'),
5985   EL_STEEL_CHAR('K'),
5986
5987   EL_STEEL_CHAR('L'),
5988   EL_STEEL_CHAR('M'),
5989   EL_STEEL_CHAR('N'),
5990   EL_STEEL_CHAR('O'),
5991
5992   EL_STEEL_CHAR('P'),
5993   EL_STEEL_CHAR('Q'),
5994   EL_STEEL_CHAR('R'),
5995   EL_STEEL_CHAR('S'),
5996
5997   EL_STEEL_CHAR('T'),
5998   EL_STEEL_CHAR('U'),
5999   EL_STEEL_CHAR('V'),
6000   EL_STEEL_CHAR('W'),
6001
6002   EL_STEEL_CHAR('X'),
6003   EL_STEEL_CHAR('Y'),
6004   EL_STEEL_CHAR('Z'),
6005   EL_STEEL_CHAR('['),
6006
6007   EL_STEEL_CHAR('\\'),
6008   EL_STEEL_CHAR(']'),
6009   EL_STEEL_CHAR('^'),
6010   EL_STEEL_CHAR('_'),
6011
6012   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
6013   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
6014   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
6015   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
6016
6017   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
6018   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
6019   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
6020   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
6021
6022   EL_STEEL_CHAR(FONT_ASCII_UP),
6023   EL_STEEL_CHAR(FONT_ASCII_DOWN),
6024   EL_STEEL_CHAR(' '),
6025   EL_STEEL_CHAR(' ')
6026 };
6027 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
6028 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
6029 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
6030 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
6031
6032 static int editor_hl_custom[] =
6033 {
6034   EL_INTERNAL_CASCADE_CE_ACTIVE,
6035   EL_CHAR('C'),
6036   EL_CHAR('E'),
6037   EL_EMPTY,
6038 };
6039
6040 static int editor_el_custom[] =
6041 {
6042   EL_CUSTOM_START + 0,
6043   EL_CUSTOM_START + 1,
6044   EL_CUSTOM_START + 2,
6045   EL_CUSTOM_START + 3,
6046
6047   EL_CUSTOM_START + 4,
6048   EL_CUSTOM_START + 5,
6049   EL_CUSTOM_START + 6,
6050   EL_CUSTOM_START + 7,
6051
6052   EL_CUSTOM_START + 8,
6053   EL_CUSTOM_START + 9,
6054   EL_CUSTOM_START + 10,
6055   EL_CUSTOM_START + 11,
6056
6057   EL_CUSTOM_START + 12,
6058   EL_CUSTOM_START + 13,
6059   EL_CUSTOM_START + 14,
6060   EL_CUSTOM_START + 15,
6061
6062   EL_CUSTOM_START + 16,
6063   EL_CUSTOM_START + 17,
6064   EL_CUSTOM_START + 18,
6065   EL_CUSTOM_START + 19,
6066
6067   EL_CUSTOM_START + 20,
6068   EL_CUSTOM_START + 21,
6069   EL_CUSTOM_START + 22,
6070   EL_CUSTOM_START + 23,
6071
6072   EL_CUSTOM_START + 24,
6073   EL_CUSTOM_START + 25,
6074   EL_CUSTOM_START + 26,
6075   EL_CUSTOM_START + 27,
6076
6077   EL_CUSTOM_START + 28,
6078   EL_CUSTOM_START + 29,
6079   EL_CUSTOM_START + 30,
6080   EL_CUSTOM_START + 31,
6081
6082   EL_CUSTOM_START + 32,
6083   EL_CUSTOM_START + 33,
6084   EL_CUSTOM_START + 34,
6085   EL_CUSTOM_START + 35,
6086
6087   EL_CUSTOM_START + 36,
6088   EL_CUSTOM_START + 37,
6089   EL_CUSTOM_START + 38,
6090   EL_CUSTOM_START + 39,
6091
6092   EL_CUSTOM_START + 40,
6093   EL_CUSTOM_START + 41,
6094   EL_CUSTOM_START + 42,
6095   EL_CUSTOM_START + 43,
6096
6097   EL_CUSTOM_START + 44,
6098   EL_CUSTOM_START + 45,
6099   EL_CUSTOM_START + 46,
6100   EL_CUSTOM_START + 47,
6101
6102   EL_CUSTOM_START + 48,
6103   EL_CUSTOM_START + 49,
6104   EL_CUSTOM_START + 50,
6105   EL_CUSTOM_START + 51,
6106
6107   EL_CUSTOM_START + 52,
6108   EL_CUSTOM_START + 53,
6109   EL_CUSTOM_START + 54,
6110   EL_CUSTOM_START + 55,
6111
6112   EL_CUSTOM_START + 56,
6113   EL_CUSTOM_START + 57,
6114   EL_CUSTOM_START + 58,
6115   EL_CUSTOM_START + 59,
6116
6117   EL_CUSTOM_START + 60,
6118   EL_CUSTOM_START + 61,
6119   EL_CUSTOM_START + 62,
6120   EL_CUSTOM_START + 63,
6121
6122   EL_CUSTOM_START + 64,
6123   EL_CUSTOM_START + 65,
6124   EL_CUSTOM_START + 66,
6125   EL_CUSTOM_START + 67,
6126
6127   EL_CUSTOM_START + 68,
6128   EL_CUSTOM_START + 69,
6129   EL_CUSTOM_START + 70,
6130   EL_CUSTOM_START + 71,
6131
6132   EL_CUSTOM_START + 72,
6133   EL_CUSTOM_START + 73,
6134   EL_CUSTOM_START + 74,
6135   EL_CUSTOM_START + 75,
6136
6137   EL_CUSTOM_START + 76,
6138   EL_CUSTOM_START + 77,
6139   EL_CUSTOM_START + 78,
6140   EL_CUSTOM_START + 79,
6141
6142   EL_CUSTOM_START + 80,
6143   EL_CUSTOM_START + 81,
6144   EL_CUSTOM_START + 82,
6145   EL_CUSTOM_START + 83,
6146
6147   EL_CUSTOM_START + 84,
6148   EL_CUSTOM_START + 85,
6149   EL_CUSTOM_START + 86,
6150   EL_CUSTOM_START + 87,
6151
6152   EL_CUSTOM_START + 88,
6153   EL_CUSTOM_START + 89,
6154   EL_CUSTOM_START + 90,
6155   EL_CUSTOM_START + 91,
6156
6157   EL_CUSTOM_START + 92,
6158   EL_CUSTOM_START + 93,
6159   EL_CUSTOM_START + 94,
6160   EL_CUSTOM_START + 95,
6161
6162   EL_CUSTOM_START + 96,
6163   EL_CUSTOM_START + 97,
6164   EL_CUSTOM_START + 98,
6165   EL_CUSTOM_START + 99,
6166
6167   EL_CUSTOM_START + 100,
6168   EL_CUSTOM_START + 101,
6169   EL_CUSTOM_START + 102,
6170   EL_CUSTOM_START + 103,
6171
6172   EL_CUSTOM_START + 104,
6173   EL_CUSTOM_START + 105,
6174   EL_CUSTOM_START + 106,
6175   EL_CUSTOM_START + 107,
6176
6177   EL_CUSTOM_START + 108,
6178   EL_CUSTOM_START + 109,
6179   EL_CUSTOM_START + 110,
6180   EL_CUSTOM_START + 111,
6181
6182   EL_CUSTOM_START + 112,
6183   EL_CUSTOM_START + 113,
6184   EL_CUSTOM_START + 114,
6185   EL_CUSTOM_START + 115,
6186
6187   EL_CUSTOM_START + 116,
6188   EL_CUSTOM_START + 117,
6189   EL_CUSTOM_START + 118,
6190   EL_CUSTOM_START + 119,
6191
6192   EL_CUSTOM_START + 120,
6193   EL_CUSTOM_START + 121,
6194   EL_CUSTOM_START + 122,
6195   EL_CUSTOM_START + 123,
6196
6197   EL_CUSTOM_START + 124,
6198   EL_CUSTOM_START + 125,
6199   EL_CUSTOM_START + 126,
6200   EL_CUSTOM_START + 127,
6201
6202   EL_CUSTOM_START + 128,
6203   EL_CUSTOM_START + 129,
6204   EL_CUSTOM_START + 130,
6205   EL_CUSTOM_START + 131,
6206
6207   EL_CUSTOM_START + 132,
6208   EL_CUSTOM_START + 133,
6209   EL_CUSTOM_START + 134,
6210   EL_CUSTOM_START + 135,
6211
6212   EL_CUSTOM_START + 136,
6213   EL_CUSTOM_START + 137,
6214   EL_CUSTOM_START + 138,
6215   EL_CUSTOM_START + 139,
6216
6217   EL_CUSTOM_START + 140,
6218   EL_CUSTOM_START + 141,
6219   EL_CUSTOM_START + 142,
6220   EL_CUSTOM_START + 143,
6221
6222   EL_CUSTOM_START + 144,
6223   EL_CUSTOM_START + 145,
6224   EL_CUSTOM_START + 146,
6225   EL_CUSTOM_START + 147,
6226
6227   EL_CUSTOM_START + 148,
6228   EL_CUSTOM_START + 149,
6229   EL_CUSTOM_START + 150,
6230   EL_CUSTOM_START + 151,
6231
6232   EL_CUSTOM_START + 152,
6233   EL_CUSTOM_START + 153,
6234   EL_CUSTOM_START + 154,
6235   EL_CUSTOM_START + 155,
6236
6237   EL_CUSTOM_START + 156,
6238   EL_CUSTOM_START + 157,
6239   EL_CUSTOM_START + 158,
6240   EL_CUSTOM_START + 159,
6241
6242   EL_CUSTOM_START + 160,
6243   EL_CUSTOM_START + 161,
6244   EL_CUSTOM_START + 162,
6245   EL_CUSTOM_START + 163,
6246
6247   EL_CUSTOM_START + 164,
6248   EL_CUSTOM_START + 165,
6249   EL_CUSTOM_START + 166,
6250   EL_CUSTOM_START + 167,
6251
6252   EL_CUSTOM_START + 168,
6253   EL_CUSTOM_START + 169,
6254   EL_CUSTOM_START + 170,
6255   EL_CUSTOM_START + 171,
6256
6257   EL_CUSTOM_START + 172,
6258   EL_CUSTOM_START + 173,
6259   EL_CUSTOM_START + 174,
6260   EL_CUSTOM_START + 175,
6261
6262   EL_CUSTOM_START + 176,
6263   EL_CUSTOM_START + 177,
6264   EL_CUSTOM_START + 178,
6265   EL_CUSTOM_START + 179,
6266
6267   EL_CUSTOM_START + 180,
6268   EL_CUSTOM_START + 181,
6269   EL_CUSTOM_START + 182,
6270   EL_CUSTOM_START + 183,
6271
6272   EL_CUSTOM_START + 184,
6273   EL_CUSTOM_START + 185,
6274   EL_CUSTOM_START + 186,
6275   EL_CUSTOM_START + 187,
6276
6277   EL_CUSTOM_START + 188,
6278   EL_CUSTOM_START + 189,
6279   EL_CUSTOM_START + 190,
6280   EL_CUSTOM_START + 191,
6281
6282   EL_CUSTOM_START + 192,
6283   EL_CUSTOM_START + 193,
6284   EL_CUSTOM_START + 194,
6285   EL_CUSTOM_START + 195,
6286
6287   EL_CUSTOM_START + 196,
6288   EL_CUSTOM_START + 197,
6289   EL_CUSTOM_START + 198,
6290   EL_CUSTOM_START + 199,
6291
6292   EL_CUSTOM_START + 200,
6293   EL_CUSTOM_START + 201,
6294   EL_CUSTOM_START + 202,
6295   EL_CUSTOM_START + 203,
6296
6297   EL_CUSTOM_START + 204,
6298   EL_CUSTOM_START + 205,
6299   EL_CUSTOM_START + 206,
6300   EL_CUSTOM_START + 207,
6301
6302   EL_CUSTOM_START + 208,
6303   EL_CUSTOM_START + 209,
6304   EL_CUSTOM_START + 210,
6305   EL_CUSTOM_START + 211,
6306
6307   EL_CUSTOM_START + 212,
6308   EL_CUSTOM_START + 213,
6309   EL_CUSTOM_START + 214,
6310   EL_CUSTOM_START + 215,
6311
6312   EL_CUSTOM_START + 216,
6313   EL_CUSTOM_START + 217,
6314   EL_CUSTOM_START + 218,
6315   EL_CUSTOM_START + 219,
6316
6317   EL_CUSTOM_START + 220,
6318   EL_CUSTOM_START + 221,
6319   EL_CUSTOM_START + 222,
6320   EL_CUSTOM_START + 223,
6321
6322   EL_CUSTOM_START + 224,
6323   EL_CUSTOM_START + 225,
6324   EL_CUSTOM_START + 226,
6325   EL_CUSTOM_START + 227,
6326
6327   EL_CUSTOM_START + 228,
6328   EL_CUSTOM_START + 229,
6329   EL_CUSTOM_START + 230,
6330   EL_CUSTOM_START + 231,
6331
6332   EL_CUSTOM_START + 232,
6333   EL_CUSTOM_START + 233,
6334   EL_CUSTOM_START + 234,
6335   EL_CUSTOM_START + 235,
6336
6337   EL_CUSTOM_START + 236,
6338   EL_CUSTOM_START + 237,
6339   EL_CUSTOM_START + 238,
6340   EL_CUSTOM_START + 239,
6341
6342   EL_CUSTOM_START + 240,
6343   EL_CUSTOM_START + 241,
6344   EL_CUSTOM_START + 242,
6345   EL_CUSTOM_START + 243,
6346
6347   EL_CUSTOM_START + 244,
6348   EL_CUSTOM_START + 245,
6349   EL_CUSTOM_START + 246,
6350   EL_CUSTOM_START + 247,
6351
6352   EL_CUSTOM_START + 248,
6353   EL_CUSTOM_START + 249,
6354   EL_CUSTOM_START + 250,
6355   EL_CUSTOM_START + 251,
6356
6357   EL_CUSTOM_START + 252,
6358   EL_CUSTOM_START + 253,
6359   EL_CUSTOM_START + 254,
6360   EL_CUSTOM_START + 255
6361 };
6362 static int *editor_hl_custom_ptr = editor_hl_custom;
6363 static int *editor_el_custom_ptr = editor_el_custom;
6364 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
6365 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
6366
6367 static int editor_hl_group[] =
6368 {
6369   EL_INTERNAL_CASCADE_GE_ACTIVE,
6370   EL_CHAR('G'),
6371   EL_CHAR('E'),
6372   EL_EMPTY,
6373 };
6374
6375 static int editor_el_group[] =
6376 {
6377   EL_GROUP_START + 0,
6378   EL_GROUP_START + 1,
6379   EL_GROUP_START + 2,
6380   EL_GROUP_START + 3,
6381
6382   EL_GROUP_START + 4,
6383   EL_GROUP_START + 5,
6384   EL_GROUP_START + 6,
6385   EL_GROUP_START + 7,
6386
6387   EL_GROUP_START + 8,
6388   EL_GROUP_START + 9,
6389   EL_GROUP_START + 10,
6390   EL_GROUP_START + 11,
6391
6392   EL_GROUP_START + 12,
6393   EL_GROUP_START + 13,
6394   EL_GROUP_START + 14,
6395   EL_GROUP_START + 15,
6396
6397   EL_GROUP_START + 16,
6398   EL_GROUP_START + 17,
6399   EL_GROUP_START + 18,
6400   EL_GROUP_START + 19,
6401
6402   EL_GROUP_START + 20,
6403   EL_GROUP_START + 21,
6404   EL_GROUP_START + 22,
6405   EL_GROUP_START + 23,
6406
6407   EL_GROUP_START + 24,
6408   EL_GROUP_START + 25,
6409   EL_GROUP_START + 26,
6410   EL_GROUP_START + 27,
6411
6412   EL_GROUP_START + 28,
6413   EL_GROUP_START + 29,
6414   EL_GROUP_START + 30,
6415   EL_GROUP_START + 31
6416 };
6417 static int *editor_hl_group_ptr = editor_hl_group;
6418 static int *editor_el_group_ptr = editor_el_group;
6419 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
6420 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
6421
6422 static int editor_hl_empty_space[] =
6423 {
6424   EL_INTERNAL_CASCADE_ES_ACTIVE,
6425   EL_CHAR('E'),
6426   EL_CHAR('S'),
6427   EL_EMPTY,
6428 };
6429
6430 static int editor_el_empty_space[] =
6431 {
6432   EL_EMPTY_SPACE_1,
6433   EL_EMPTY_SPACE_2,
6434   EL_EMPTY_SPACE_3,
6435   EL_EMPTY_SPACE_4,
6436
6437   EL_EMPTY_SPACE_5,
6438   EL_EMPTY_SPACE_6,
6439   EL_EMPTY_SPACE_7,
6440   EL_EMPTY_SPACE_8,
6441
6442   EL_EMPTY_SPACE_9,
6443   EL_EMPTY_SPACE_10,
6444   EL_EMPTY_SPACE_11,
6445   EL_EMPTY_SPACE_12,
6446
6447   EL_EMPTY_SPACE_13,
6448   EL_EMPTY_SPACE_14,
6449   EL_EMPTY_SPACE_15,
6450   EL_EMPTY_SPACE_16
6451 };
6452 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
6453 static int *editor_el_empty_space_ptr = editor_el_empty_space;
6454 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
6455 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
6456
6457 static int editor_hl_reference[] =
6458 {
6459   EL_INTERNAL_CASCADE_REF_ACTIVE,
6460   EL_CHAR('R'),
6461   EL_CHAR('E'),
6462   EL_CHAR('F')
6463 };
6464
6465 static int editor_el_reference[] =
6466 {
6467   EL_TRIGGER_PLAYER,
6468   EL_TRIGGER_ELEMENT,
6469   EL_TRIGGER_CE_VALUE,
6470   EL_TRIGGER_CE_SCORE,
6471
6472   EL_SELF,
6473   EL_ANY_ELEMENT,
6474   EL_CURRENT_CE_VALUE,
6475   EL_CURRENT_CE_SCORE,
6476
6477   EL_PREV_CE_8,
6478   EL_PREV_CE_7,
6479   EL_PREV_CE_6,
6480   EL_PREV_CE_5,
6481
6482   EL_PREV_CE_4,
6483   EL_PREV_CE_3,
6484   EL_PREV_CE_2,
6485   EL_PREV_CE_1,
6486
6487   EL_NEXT_CE_1,
6488   EL_NEXT_CE_2,
6489   EL_NEXT_CE_3,
6490   EL_NEXT_CE_4,
6491
6492   EL_NEXT_CE_5,
6493   EL_NEXT_CE_6,
6494   EL_NEXT_CE_7,
6495   EL_NEXT_CE_8,
6496 };
6497 static int *editor_hl_reference_ptr = editor_hl_reference;
6498 static int *editor_el_reference_ptr = editor_el_reference;
6499 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
6500 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
6501
6502 static int editor_hl_user_defined[] =
6503 {
6504   EL_INTERNAL_CASCADE_USER_ACTIVE,
6505   EL_CHAR('M'),
6506   EL_CHAR('Y'),
6507   EL_EMPTY,
6508 };
6509
6510 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
6511 static int *editor_el_user_defined_ptr = NULL;
6512 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
6513 static int num_editor_el_user_defined = 0;
6514
6515 static int editor_hl_dynamic[] =
6516 {
6517   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
6518   EL_CHAR('U'),
6519   EL_CHAR('S'),
6520   EL_CHAR('E'),
6521 };
6522
6523 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
6524 static int *editor_el_dynamic_ptr = NULL;
6525 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
6526 static int num_editor_el_dynamic = 0;
6527
6528 static int editor_hl_empty[] = { EL_EMPTY };
6529 static int *editor_el_empty = NULL;     // dynamically allocated
6530
6531 static int *editor_hl_empty_ptr = editor_hl_empty;
6532 static int *editor_el_empty_ptr = NULL;
6533 static int num_editor_hl_empty = 0;
6534 static int num_editor_el_empty = 0;     // dynamically determined, if needed
6535
6536 static boolean use_el_empty = FALSE;
6537
6538 static int *editor_elements = NULL;     // dynamically allocated
6539 static int num_editor_elements = 0;     // dynamically determined
6540
6541 static boolean setup_editor_cascade_never = FALSE;
6542
6543 static boolean setup_editor_el_players                  = TRUE;
6544 static boolean setup_editor_el_boulderdash              = TRUE;
6545 static boolean setup_editor_el_boulderdash_native       = TRUE;
6546 static boolean setup_editor_el_boulderdash_effects      = TRUE;
6547 static boolean setup_editor_el_emerald_mine             = TRUE;
6548 static boolean setup_editor_el_emerald_mine_club        = TRUE;
6549 static boolean setup_editor_el_more                     = TRUE;
6550 static boolean setup_editor_el_sokoban                  = TRUE;
6551 static boolean setup_editor_el_supaplex                 = TRUE;
6552 static boolean setup_editor_el_diamond_caves            = TRUE;
6553 static boolean setup_editor_el_dx_boulderdash           = TRUE;
6554 static boolean setup_editor_el_mirror_magic             = TRUE;
6555 static boolean setup_editor_el_deflektor                = TRUE;
6556 static boolean setup_editor_el_chars                    = TRUE;
6557 static boolean setup_editor_el_steel_chars              = TRUE;
6558 static boolean setup_editor_el_custom                   = TRUE;
6559 static boolean setup_editor_el_user_defined             = TRUE;
6560 static boolean setup_editor_el_dynamic                  = TRUE;
6561
6562 static int editor_hl_unused[] = { EL_EMPTY };
6563 static int *editor_hl_unused_ptr = editor_hl_unused;
6564 static int num_editor_hl_unused = 0;
6565
6566 static struct
6567 {
6568   boolean *setup_value;
6569   boolean *setup_cascade_value;
6570
6571   int **headline_list;
6572   int *headline_list_size;
6573
6574   int **element_list;
6575   int *element_list_size;
6576
6577   boolean last_setup_value;
6578 }
6579 editor_elements_info[] =
6580 {
6581   {
6582     &setup_editor_el_players,
6583     &setup_editor_cascade_never,
6584     &editor_hl_unused_ptr,              &num_editor_hl_unused,
6585     &editor_el_players_ptr,             &num_editor_el_players
6586   },
6587   {
6588     &setup_editor_el_boulderdash,
6589     &setup.editor_cascade.el_bd,
6590     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
6591     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
6592   },
6593   {
6594     &setup_editor_el_boulderdash_native,
6595     &setup.editor_cascade.el_bd_native,
6596     &editor_hl_boulderdash_native_ptr,  &num_editor_hl_boulderdash_native,
6597     &editor_el_boulderdash_native_ptr,  &num_editor_el_boulderdash_native
6598   },
6599   {
6600     &setup_editor_el_boulderdash_effects,
6601     &setup.editor_cascade.el_bd_effects,
6602     &editor_hl_boulderdash_effects_ptr, &num_editor_hl_boulderdash_effects,
6603     &editor_el_boulderdash_effects_ptr, &num_editor_el_boulderdash_effects
6604   },
6605   {
6606     &setup_editor_el_emerald_mine,
6607     &setup.editor_cascade.el_em,
6608     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
6609     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
6610   },
6611   {
6612     &setup_editor_el_emerald_mine_club,
6613     &setup.editor_cascade.el_emc,
6614     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
6615     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
6616   },
6617   {
6618     &setup_editor_el_more,
6619     &setup.editor_cascade.el_rnd,
6620     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
6621     &editor_el_rnd_ptr,                 &num_editor_el_rnd
6622   },
6623   {
6624     &setup_editor_el_sokoban,
6625     &setup.editor_cascade.el_sb,
6626     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
6627     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
6628   },
6629   {
6630     &setup_editor_el_supaplex,
6631     &setup.editor_cascade.el_sp,
6632     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
6633     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
6634   },
6635   {
6636     &setup_editor_el_diamond_caves,
6637     &setup.editor_cascade.el_dc,
6638     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
6639     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
6640   },
6641   {
6642     &setup_editor_el_dx_boulderdash,
6643     &setup.editor_cascade.el_dx,
6644     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
6645     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
6646   },
6647   {
6648     &setup_editor_el_mirror_magic,
6649     &setup.editor_cascade.el_mm,
6650     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
6651     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
6652   },
6653   {
6654     &setup_editor_el_deflektor,
6655     &setup.editor_cascade.el_df,
6656     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
6657     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
6658   },
6659   {
6660     &setup_editor_el_chars,
6661     &setup.editor_cascade.el_chars,
6662     &editor_hl_chars_ptr,               &num_editor_hl_chars,
6663     &editor_el_chars_ptr,               &num_editor_el_chars
6664   },
6665   {
6666     &setup_editor_el_steel_chars,
6667     &setup.editor_cascade.el_steel_chars,
6668     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
6669     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
6670   },
6671   {
6672     &setup_editor_el_custom,
6673     &setup.editor_cascade.el_ce,
6674     &editor_hl_custom_ptr,              &num_editor_hl_custom,
6675     &editor_el_custom_ptr,              &num_editor_el_custom
6676   },
6677   {
6678     &setup_editor_el_custom,
6679     &setup.editor_cascade.el_ge,
6680     &editor_hl_group_ptr,               &num_editor_hl_group,
6681     &editor_el_group_ptr,               &num_editor_el_group
6682   },
6683   {
6684     &setup_editor_el_custom,
6685     &setup.editor_cascade.el_es,
6686     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
6687     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
6688   },
6689   {
6690     &setup_editor_el_custom,
6691     &setup.editor_cascade.el_ref,
6692     &editor_hl_reference_ptr,           &num_editor_hl_reference,
6693     &editor_el_reference_ptr,           &num_editor_el_reference
6694   },
6695   {
6696     &setup_editor_el_user_defined,
6697     &setup.editor_cascade.el_user,
6698     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
6699     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
6700   },
6701   {
6702     &setup_editor_el_dynamic,
6703     &setup.editor_cascade.el_dynamic,
6704     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
6705     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
6706   },
6707   {
6708     &use_el_empty,
6709     &use_el_empty,
6710     &editor_hl_empty_ptr,               &num_editor_hl_empty,
6711     &editor_el_empty_ptr,               &num_editor_el_empty,
6712   },
6713   {
6714     NULL,
6715     NULL,
6716     NULL,                               NULL,
6717     NULL,                               NULL
6718   }
6719 };
6720
6721 static struct XY xy_directions[] =
6722 {
6723   { -1,  0 },
6724   { +1,  0 },
6725   {  0, -1 },
6726   {  0, +1 }
6727 };
6728
6729
6730 // ----------------------------------------------------------------------------
6731 // functions
6732 // ----------------------------------------------------------------------------
6733
6734 static int getMaxInfoTextLength(void)
6735 {
6736   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
6737 }
6738
6739 static int getTextWidthForGadget(char *text)
6740 {
6741   if (text == NULL)
6742     return 0;
6743
6744   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
6745 }
6746
6747 static int getTextWidthForDrawingArea(char *text)
6748 {
6749   if (text == NULL)
6750     return 0;
6751
6752   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_BORDER_SIZE);
6753 }
6754
6755 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
6756 {
6757   return (gi->x + gi->width + getTextWidthForGadget(text));
6758 }
6759
6760 static char *getElementInfoText(int element)
6761 {
6762   char *info_text = NULL;
6763
6764   if (element < MAX_NUM_ELEMENTS)
6765   {
6766     if (strlen(element_info[element].description) > 0)
6767       info_text = element_info[element].description;
6768     else if (element_info[element].custom_description != NULL)
6769       info_text = element_info[element].custom_description;
6770     else if (element_info[element].editor_description != NULL)
6771       info_text = element_info[element].editor_description;
6772   }
6773
6774   if (info_text == NULL)
6775     info_text = INFOTEXT_UNKNOWN_ELEMENT;
6776
6777   return info_text;
6778 }
6779
6780 static char *getElementDescriptionFilenameExt(char *basename)
6781 {
6782   char *elements_subdir = ELEMENTS_DIRECTORY;
6783   static char *elements_subdir2 = NULL;
6784   static char *filename = NULL;
6785
6786   if (elements_subdir2 == NULL)
6787     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
6788
6789   checked_free(filename);
6790
6791   // 1st try: look for element description in current level set directory
6792   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
6793   if (fileExists(filename))
6794     return filename;
6795
6796   free(filename);
6797
6798   // 2nd try: look for element description in the game's base directory
6799   filename = getPath3(options.docs_directory, elements_subdir, basename);
6800   if (fileExists(filename))
6801     return filename;
6802
6803   return NULL;
6804 }
6805
6806 static char *getElementDescriptionFilename(int element)
6807 {
6808   char basename[MAX_FILENAME_LEN];
6809   char *filename;
6810
6811   // 1st try: look for element description file for exactly this element
6812   sprintf(basename, "%s.txt", element_info[element].token_name);
6813   filename = getElementDescriptionFilenameExt(basename);
6814   if (filename != NULL)
6815     return filename;
6816
6817   // 2nd try: look for element description file for this element's class
6818   sprintf(basename, "%s.txt", element_info[element].class_name);
6819   filename = getElementDescriptionFilenameExt(basename);
6820   if (filename != NULL)
6821     return filename;
6822
6823   // 3rd try: look for generic fallback text file for any element
6824   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
6825   if (filename != NULL)
6826     return filename;
6827
6828   return NULL;
6829 }
6830
6831 static boolean suppressBorderElement(void)
6832 {
6833   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
6834           lev_fieldx <= MAX_ED_FIELDX &&
6835           lev_fieldy <= MAX_ED_FIELDY);
6836 }
6837
6838 static void InitDynamicEditorElementList(int **elements, int *num_elements)
6839 {
6840   boolean element_found[NUM_FILE_ELEMENTS];
6841   int i, x, y;
6842
6843   // initialize list of used elements to "not used"
6844   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6845     element_found[i] = FALSE;
6846
6847   // find all elements used in current level
6848   for (y = 0; y < lev_fieldy; y++)
6849   {
6850     for (x = 0; x < lev_fieldx; x++)
6851     {
6852       if (Tile[x][y] >= NUM_FILE_ELEMENTS)      // should never happen
6853         continue;
6854
6855       if (IS_MM_WALL(Tile[x][y]))
6856         element_found[map_mm_wall_element(Tile[x][y])] = TRUE;
6857       else
6858         element_found[Tile[x][y]] = TRUE;
6859     }
6860   }
6861
6862   *num_elements = 0;
6863
6864   // count number of elements used in current level
6865   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6866     if (element_found[i])
6867       (*num_elements)++;
6868
6869   // add space for up to 3 more elements for padding that may be needed
6870   *num_elements += 3;
6871
6872   // free memory for old list of elements, if needed
6873   checked_free(*elements);
6874
6875   // allocate memory for new list of elements
6876   *elements = checked_malloc(*num_elements * sizeof(int));
6877
6878   *num_elements = 0;
6879
6880   // add all elements used in current level (non-custom/group/empty elements)
6881   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6882     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) ||
6883                               IS_GROUP_ELEMENT(i) ||
6884                               IS_EMPTY_ELEMENT(i)))
6885       (*elements)[(*num_elements)++] = i;
6886
6887   // add all elements used in current level (custom/group/empty elements)
6888   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6889     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) ||
6890                              IS_GROUP_ELEMENT(i) ||
6891                              IS_EMPTY_ELEMENT(i)))
6892       (*elements)[(*num_elements)++] = i;
6893
6894   while (*num_elements % 4)     // pad with empty elements, if needed
6895     (*elements)[(*num_elements)++] = EL_EMPTY;
6896 }
6897
6898 static void ReinitializeElementList_EnableSections(void)
6899 {
6900   // default: enable all element sections
6901
6902   setup_editor_el_players               = TRUE;
6903   setup_editor_el_boulderdash           = TRUE;
6904   setup_editor_el_boulderdash_native    = TRUE;
6905   setup_editor_el_boulderdash_effects   = TRUE;
6906   setup_editor_el_emerald_mine          = TRUE;
6907   setup_editor_el_emerald_mine_club     = TRUE;
6908   setup_editor_el_more                  = TRUE;
6909   setup_editor_el_sokoban               = TRUE;
6910   setup_editor_el_supaplex              = TRUE;
6911   setup_editor_el_diamond_caves         = TRUE;
6912   setup_editor_el_dx_boulderdash        = TRUE;
6913   setup_editor_el_mirror_magic          = TRUE;
6914   setup_editor_el_deflektor             = TRUE;
6915   setup_editor_el_chars                 = TRUE;
6916   setup_editor_el_steel_chars           = TRUE;
6917
6918   setup_editor_el_custom                = TRUE;
6919   setup_editor_el_user_defined          = TRUE;
6920   setup_editor_el_dynamic               = TRUE;
6921
6922   // now disable all element sections not to be displayed
6923
6924   if (!setup.editor.el_classic)
6925   {
6926     setup_editor_el_players             = FALSE;
6927     setup_editor_el_boulderdash         = FALSE;
6928     setup_editor_el_boulderdash_native  = FALSE;
6929     setup_editor_el_boulderdash_effects = FALSE;
6930     setup_editor_el_emerald_mine        = FALSE;
6931     setup_editor_el_emerald_mine_club   = FALSE;
6932     setup_editor_el_more                = FALSE;
6933     setup_editor_el_sokoban             = FALSE;
6934     setup_editor_el_supaplex            = FALSE;
6935     setup_editor_el_diamond_caves       = FALSE;
6936     setup_editor_el_dx_boulderdash      = FALSE;
6937     setup_editor_el_mirror_magic        = FALSE;
6938     setup_editor_el_deflektor           = FALSE;
6939     setup_editor_el_chars               = FALSE;
6940     setup_editor_el_steel_chars         = FALSE;
6941   }
6942
6943   if (!setup.editor.el_custom)
6944   {
6945     setup_editor_el_custom              = FALSE;
6946   }
6947
6948   if (!setup.editor.el_user_defined)
6949   {
6950     setup_editor_el_user_defined        = FALSE;
6951   }
6952
6953   if (!setup.editor.el_dynamic)
6954   {
6955     setup_editor_el_dynamic             = FALSE;
6956   }
6957
6958   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
6959   {
6960     setup_editor_el_boulderdash_native  = FALSE;
6961     setup_editor_el_boulderdash_effects = FALSE;
6962     setup_editor_el_mirror_magic        = FALSE;
6963     setup_editor_el_deflektor           = FALSE;
6964   }
6965   else if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
6966   {
6967     setup_editor_el_players             = FALSE;
6968     setup_editor_el_boulderdash         = FALSE;
6969     setup_editor_el_emerald_mine        = FALSE;
6970     setup_editor_el_emerald_mine_club   = FALSE;
6971     setup_editor_el_more                = FALSE;
6972     setup_editor_el_sokoban             = FALSE;
6973     setup_editor_el_supaplex            = FALSE;
6974     setup_editor_el_diamond_caves       = FALSE;
6975     setup_editor_el_dx_boulderdash      = FALSE;
6976     setup_editor_el_mirror_magic        = FALSE;
6977     setup_editor_el_deflektor           = FALSE;
6978     setup_editor_el_chars               = FALSE;
6979     setup_editor_el_steel_chars         = FALSE;
6980
6981     setup_editor_el_custom              = FALSE;
6982   }
6983   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
6984   {
6985     setup_editor_el_boulderdash         = FALSE;
6986     setup_editor_el_boulderdash_native  = FALSE;
6987     setup_editor_el_boulderdash_effects = FALSE;
6988     setup_editor_el_more                = FALSE;
6989     setup_editor_el_sokoban             = FALSE;
6990     setup_editor_el_supaplex            = FALSE;
6991     setup_editor_el_diamond_caves       = FALSE;
6992     setup_editor_el_dx_boulderdash      = FALSE;
6993     setup_editor_el_mirror_magic        = FALSE;
6994     setup_editor_el_deflektor           = FALSE;
6995     setup_editor_el_steel_chars         = FALSE;
6996
6997     setup_editor_el_custom              = FALSE;
6998   }
6999   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
7000   {
7001     setup_editor_el_players             = FALSE;
7002     setup_editor_el_boulderdash         = FALSE;
7003     setup_editor_el_boulderdash_native  = FALSE;
7004     setup_editor_el_boulderdash_effects = FALSE;
7005     setup_editor_el_emerald_mine        = FALSE;
7006     setup_editor_el_emerald_mine_club   = FALSE;
7007     setup_editor_el_more                = FALSE;
7008     setup_editor_el_sokoban             = FALSE;
7009     setup_editor_el_diamond_caves       = FALSE;
7010     setup_editor_el_dx_boulderdash      = FALSE;
7011     setup_editor_el_mirror_magic        = FALSE;
7012     setup_editor_el_deflektor           = FALSE;
7013     setup_editor_el_chars               = FALSE;
7014     setup_editor_el_steel_chars         = FALSE;
7015
7016     setup_editor_el_custom              = FALSE;
7017   }
7018   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
7019   {
7020     setup_editor_el_players             = FALSE;
7021     setup_editor_el_boulderdash         = FALSE;
7022     setup_editor_el_boulderdash_native  = FALSE;
7023     setup_editor_el_boulderdash_effects = FALSE;
7024     setup_editor_el_emerald_mine        = FALSE;
7025     setup_editor_el_emerald_mine_club   = FALSE;
7026     setup_editor_el_more                = FALSE;
7027     setup_editor_el_sokoban             = FALSE;
7028     setup_editor_el_supaplex            = FALSE;
7029     setup_editor_el_diamond_caves       = FALSE;
7030     setup_editor_el_dx_boulderdash      = FALSE;
7031     setup_editor_el_steel_chars         = FALSE;
7032
7033     setup_editor_el_custom              = FALSE;
7034   }
7035 }
7036
7037 static void ReinitializeElementList(void)
7038 {
7039   static boolean initialization_needed = TRUE;
7040   int pos = 0;
7041   int i, j;
7042
7043   ReinitializeElementList_EnableSections();
7044
7045   if (initialization_needed)
7046   {
7047     LoadSetup_EditorCascade();          // load last editor cascade state
7048
7049     // initialize editor cascade element from saved cascade state
7050     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7051     {
7052       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
7053       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
7054
7055       if (IS_EDITOR_CASCADE(*cascade_element))
7056         *cascade_element =
7057           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
7058            EL_CASCADE_INACTIVE(*cascade_element));
7059     }
7060
7061     initialization_needed = FALSE;
7062   }
7063
7064   checked_free(editor_elements);
7065
7066   // reload optional user defined element list for each invocation of editor
7067   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
7068                                    &num_editor_el_user_defined);
7069
7070   // initialize dynamic level element list for each invocation of editor
7071   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
7072                                &num_editor_el_dynamic);
7073
7074   // initialize list of empty elements (used for padding, if needed)
7075   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7076     editor_el_empty[i] = EL_EMPTY;
7077
7078   // do some sanity checks for each element from element list
7079   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7080   {
7081     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
7082     {
7083       int element = (*editor_elements_info[i].element_list)[j];
7084
7085       if (element >= NUM_FILE_ELEMENTS)
7086         Warn("editor element %d is runtime element", element);
7087
7088       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
7089         Warn("no element description text for element %d", element);
7090     }
7091   }
7092
7093   num_editor_elements = 0;
7094   use_el_empty = FALSE;
7095
7096   // determine size of element list
7097   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7098   {
7099     if (*editor_elements_info[i].setup_value)
7100     {
7101       boolean found_inactive_cascade = FALSE;
7102
7103       if (setup.editor.el_headlines)
7104       {
7105         // required for correct padding of palette headline buttons
7106         if (*editor_elements_info[i].headline_list_size > 0)
7107           num_editor_elements += ED_ELEMENTLIST_COLS;
7108
7109         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
7110         {
7111           int element = (*editor_elements_info[i].headline_list)[j];
7112
7113           if (IS_EDITOR_CASCADE_INACTIVE(element))
7114             found_inactive_cascade = TRUE;
7115         }
7116       }
7117
7118       if (found_inactive_cascade)
7119         continue;
7120
7121       // required for correct padding of palette element buttons
7122       int element_list_size = *editor_elements_info[i].element_list_size;
7123       int element_rows =
7124         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
7125       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
7126
7127       num_editor_elements += element_buttons;
7128     }
7129   }
7130
7131   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
7132   {
7133     // offer at least as many elements as element buttons exist
7134     use_el_empty = TRUE;
7135     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
7136
7137     num_editor_elements += num_editor_el_empty;
7138   }
7139   else
7140   {
7141     num_editor_el_empty = 0;
7142   }
7143
7144   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
7145
7146   // fill element list
7147   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7148   {
7149     boolean found_inactive_cascade = FALSE;
7150
7151     if (*editor_elements_info[i].setup_value)
7152     {
7153       if (setup.editor.el_headlines)
7154       {
7155         // required for correct padding of palette headline buttons
7156         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
7157                              ED_ELEMENTLIST_COLS : 0);
7158
7159         for (j = 0; j < headline_size; j++)
7160         {
7161           // use empty elements for padding of palette headline buttons
7162           int element = (j < *editor_elements_info[i].headline_list_size ?
7163                          (*editor_elements_info[i].headline_list)[j] :
7164                          editor_el_empty[0]);
7165
7166           editor_elements[pos++] = element;
7167
7168           if (IS_EDITOR_CASCADE_INACTIVE(element))
7169             found_inactive_cascade = TRUE;
7170         }
7171       }
7172
7173       if (found_inactive_cascade)
7174         continue;
7175
7176       // required for correct padding of palette element buttons
7177       int element_list_size = *editor_elements_info[i].element_list_size;
7178       int element_rows =
7179         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
7180       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
7181
7182       // copy all elements from element list
7183       for (j = 0; j < element_list_size; j++)
7184         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
7185
7186       // use empty elements for padding of palette element buttons
7187       for (j = 0; j < element_buttons - element_list_size; j++)
7188         editor_elements[pos++] = editor_el_empty[0];
7189     }
7190   }
7191
7192   // (this function is also called before editor gadgets are initialized!)
7193   AdjustElementListScrollbar();
7194 }
7195
7196 void PrintEditorElementList(void)
7197 {
7198   boolean *stop = &setup_editor_el_user_defined;
7199   int i, j;
7200
7201   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
7202   {
7203     int cascade_element = (*editor_elements_info[i].headline_list)[0];
7204
7205     if (IS_EDITOR_CASCADE(cascade_element))
7206     {
7207       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
7208       char *headline = element_info[cascade_element_show].editor_description;
7209
7210       PrintLineWithPrefix("# ", "-", 77);
7211       Print("# %s\n", headline);
7212       PrintLineWithPrefix("# ", "-", 77);
7213     }
7214
7215     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
7216     {
7217       int element = (*editor_elements_info[i].headline_list)[j];
7218
7219       if (IS_EDITOR_CASCADE(element))
7220         element = EL_CHAR_MINUS;
7221
7222       Print("# %s\n", element_info[element].token_name);
7223     }
7224
7225     if (j > 0)
7226       Print("#\n");
7227
7228     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
7229     {
7230       int element = (*editor_elements_info[i].element_list)[j];
7231
7232       Print("# %s\n", element_info[element].token_name);
7233     }
7234
7235     if (j > 0)
7236       Print("#\n");
7237   }
7238 }
7239
7240 static void ReinitializeElementListButtons(void)
7241 {
7242   static boolean last_setup_value_headlines = FALSE;
7243   static boolean initialization_needed = TRUE;
7244   int i;
7245
7246   if (!initialization_needed)   // check if editor element setup has changed
7247   {
7248     if (last_setup_value_headlines != setup.editor.el_headlines)
7249       initialization_needed = TRUE;
7250
7251     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7252       if (editor_elements_info[i].last_setup_value !=
7253           *editor_elements_info[i].setup_value)
7254         initialization_needed = TRUE;
7255   }
7256
7257   if (!initialization_needed)
7258     return;
7259
7260   FreeLevelEditorGadgets();
7261   CreateLevelEditorGadgets();
7262
7263   // store current setup values for next invocation of this function
7264   last_setup_value_headlines = setup.editor.el_headlines;
7265   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7266     editor_elements_info[i].last_setup_value =
7267       *editor_elements_info[i].setup_value;
7268
7269   initialization_needed = FALSE;
7270 }
7271
7272 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
7273                               boolean input)
7274 {
7275   int border_graphic =
7276     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
7277   struct GraphicInfo *g = &graphic_info[border_graphic];
7278   Bitmap *src_bitmap = g->bitmap;
7279   int src_x = g->src_x;
7280   int src_y = g->src_y;
7281   int border_size = g->border_size;
7282   int border_xpos = g->width  - border_size;
7283   int border_ypos = g->height - border_size;
7284   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7285   int i;
7286
7287   BlitBitmap(src_bitmap, drawto, src_x, src_y,
7288              border_size, border_size,
7289              dest_x - border_size, dest_y - border_size);
7290   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
7291              border_size, border_size,
7292              dest_x + width, dest_y - border_size);
7293   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
7294              border_size, border_size,
7295              dest_x - border_size, dest_y + height);
7296   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
7297              border_size, border_size,
7298              dest_x + width, dest_y + height);
7299
7300   for (i = 0; i < width / tilesize; i++)
7301   {
7302     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
7303                tilesize, border_size,
7304                dest_x + i * tilesize, dest_y - border_size);
7305     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
7306                tilesize, border_size,
7307                dest_x + i * tilesize, dest_y + height);
7308   }
7309
7310   for (i = 0; i < height / tilesize; i++)
7311   {
7312     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
7313                border_size, tilesize,
7314                dest_x - border_size, dest_y + i * tilesize);
7315     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
7316                border_size, tilesize,
7317                dest_x + width, dest_y + i * tilesize);
7318   }
7319
7320   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
7321 }
7322
7323 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
7324 {
7325   int xsize_tile = MAX(ed_tilesize, xsize);
7326   int ysize_tile = MAX(ed_tilesize, ysize);
7327   int xsize_full = xsize + 1;
7328   int ysize_full = ysize + 1;
7329   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
7330   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
7331   Pixel line_color = getTabulatorBarColor();
7332
7333   if (line_color == BLACK_PIXEL)                // black => transparent
7334     return;
7335
7336   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
7337   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
7338   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
7339 }
7340
7341 static void DrawEditorLevelBorderLinesIfNeeded(void)
7342 {
7343   int xsize = lev_fieldx * ed_tilesize;
7344   int ysize = lev_fieldy * ed_tilesize;
7345   int line_size = getTabulatorBarHeight();
7346
7347   if (!suppressBorderElement())
7348     return;
7349
7350   // draw little border line around editable level playfield
7351
7352   if (xsize < SXSIZE)
7353     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
7354
7355   if (ysize < SYSIZE)
7356     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
7357
7358   if (xsize < SXSIZE && ysize < SYSIZE)
7359     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
7360 }
7361
7362 static void DrawEditorElement(int x, int y, int element)
7363 {
7364   DrawSizedElement(x, y, element, ed_tilesize);
7365 }
7366
7367 static void DrawEditorElementThruMask(int x, int y, int element)
7368 {
7369   DrawSizedElementThruMask(x, y, element, ed_tilesize);
7370 }
7371
7372 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
7373 {
7374   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
7375 }
7376
7377 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
7378 {
7379   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
7380   DrawEditorLevelBorderLinesIfNeeded();
7381 }
7382
7383 static void DrawDrawingArea(int id)
7384 {
7385   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7386   int x, y;
7387
7388   int *value = drawingarea_info[id].value;
7389   int area_xsize = drawingarea_info[id].area_xsize;
7390   int area_ysize = drawingarea_info[id].area_ysize;
7391   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7392
7393   for (x = 0; x < area_xsize; x++)
7394     for (y = 0; y < area_ysize; y++)
7395       DrawSizedGraphicExt(drawto,
7396                           gi->x + x * tilesize,
7397                           gi->y + y * tilesize,
7398                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
7399 }
7400
7401 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
7402 {
7403   int x, y;
7404   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
7405   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
7406
7407   BlitBitmap(drawto, drawto,
7408              SX + (dx == -1 ? ed_tilesize : 0),
7409              SY + (dy == -1 ? ed_tilesize : 0),
7410              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
7411              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
7412              SX + (dx == +1 ? ed_tilesize : 0),
7413              SY + (dy == +1 ? ed_tilesize : 0));
7414
7415   if (dx)
7416   {
7417     x = (dx == 1 ? 0 : ed_fieldx - 1);
7418     for (y = 0; y < ed_fieldy; y++)
7419       DrawEditorElementOrWall(x, y, from_x, from_y);
7420   }
7421   else if (dy)
7422   {
7423     y = (dy == 1 ? 0 : ed_fieldy - 1);
7424     for (x = 0; x < ed_fieldx; x++)
7425       DrawEditorElementOrWall(x, y, from_x, from_y);
7426   }
7427
7428   redraw_mask |= REDRAW_FIELD;
7429   BackToFront();
7430 }
7431
7432 static void getEditorGraphicAndFrame(int element, int *graphic, int *frame, boolean use_editor_gfx)
7433 {
7434   if (use_editor_gfx)
7435   {
7436     *graphic = el2edimg(element);
7437     *frame = 0;
7438   }
7439   else
7440   {
7441     *graphic = el2img(element);
7442     *frame = (ANIM_MODE(*graphic) == ANIM_CE_VALUE ?
7443               custom_element.ce_value_fixed_initial :
7444               ANIM_MODE(*graphic) == ANIM_CE_SCORE ?
7445               custom_element.collect_score_initial : FrameCounter);
7446   }
7447
7448   if (*graphic == IMG_UNKNOWN)
7449   {
7450     // no graphic defined -- if BD style, try to get runtime ("effect") element graphics
7451     // (normal BD style elements have graphics, but runtime ("effects") elements do not)
7452     int element_bd = map_element_RND_to_BD_cave(element);
7453
7454     if (element_bd != O_UNKNOWN)
7455     {
7456       struct GraphicInfo_BD *g_bd = &graphic_info_bd_object[element_bd][0];
7457
7458       *graphic = g_bd->graphic;
7459       *frame   = g_bd->frame;
7460     }
7461   }
7462 }
7463
7464 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
7465                                    int *x, int *y)
7466 {
7467   int graphic;
7468   int frame;
7469
7470   getEditorGraphicAndFrame(element, &graphic, &frame, TRUE);
7471
7472   getSizedGraphicSource(graphic, frame, tile_size, bitmap, x, y);
7473 }
7474
7475 static void CreateControlButtons(void)
7476 {
7477   struct GadgetInfo *gi;
7478   int i;
7479
7480   // create toolbox buttons
7481   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7482   {
7483     int type_id = controlbutton_info[i].gadget_id;      // same as gadget ID here
7484     int id = controlbutton_info[i].gadget_id;
7485     int type = controlbutton_info[i].gadget_type;
7486     int graphic = controlbutton_info[i].graphic;
7487     struct XYTileSize *pos = controlbutton_info[i].pos;
7488     struct GraphicInfo *gd = &graphic_info[graphic];
7489     Bitmap *deco_bitmap = NULL;
7490     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
7491     int tile_size = 0, deco_shift = 0;
7492     boolean deco_masked = FALSE;
7493     int gd_x1 = gd->src_x;
7494     int gd_y1 = gd->src_y;
7495     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7496     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7497     int gd_x1a = gd->src_x + gd->active_xoffset;
7498     int gd_y1a = gd->src_y + gd->active_yoffset;
7499     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7500     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7501     int x = pos->x;
7502     int y = pos->y;
7503     unsigned int event_mask;
7504     int radio_button_nr = RADIO_NR_NONE;
7505     boolean checked = FALSE;
7506
7507     if (type_id != i)
7508       Fail("'controlbutton_info' structure corrupted at index %d -- please fix", i);
7509
7510     if (type == GD_TYPE_RADIO_BUTTON)
7511     {
7512       event_mask = GD_EVENT_PRESSED;
7513       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
7514
7515       if (id == drawing_function)
7516         checked = TRUE;
7517     }
7518     else
7519     {
7520       if (id == GADGET_ID_WRAP_LEFT ||
7521           id == GADGET_ID_WRAP_RIGHT ||
7522           id == GADGET_ID_WRAP_UP ||
7523           id == GADGET_ID_WRAP_DOWN)
7524         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7525       else
7526         event_mask = GD_EVENT_RELEASED;
7527     }
7528
7529     if (id == GADGET_ID_PROPERTIES ||
7530         id == GADGET_ID_PALETTE)
7531     {
7532       x += DX;
7533       y += DY;
7534     }
7535     else if (id == GADGET_ID_ELEMENT_LEFT ||
7536              id == GADGET_ID_ELEMENT_MIDDLE ||
7537              id == GADGET_ID_ELEMENT_RIGHT)
7538     {
7539       x += DX;
7540       y += DY;
7541
7542       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
7543                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
7544                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
7545
7546       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
7547                                    editor.button.element_left.tile_size :
7548                                    id == GADGET_ID_ELEMENT_MIDDLE ?
7549                                    editor.button.element_middle.tile_size :
7550                                    id == GADGET_ID_ELEMENT_RIGHT ?
7551                                    editor.button.element_right.tile_size : 0);
7552
7553       // make sure that decoration does not overlap gadget border
7554       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
7555
7556       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
7557
7558       deco_xpos = (gd->width  - tile_size) / 2;
7559       deco_ypos = (gd->height - tile_size) / 2;
7560       deco_shift = 1;
7561       deco_masked = gd->draw_masked;
7562     }
7563     else
7564     {
7565       x += EX;
7566       y += EY;
7567     }
7568
7569     gi = CreateGadget(GDI_CUSTOM_ID, id,
7570                       GDI_CUSTOM_TYPE_ID, type_id,
7571                       GDI_IMAGE_ID, graphic,
7572                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
7573                       GDI_X, x,
7574                       GDI_Y, y,
7575                       GDI_WIDTH, gd->width,
7576                       GDI_HEIGHT, gd->height,
7577                       GDI_TYPE, type,
7578                       GDI_STATE, GD_BUTTON_UNPRESSED,
7579                       GDI_RADIO_NR, radio_button_nr,
7580                       GDI_CHECKED, checked,
7581                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7582                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7583                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7584                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7585                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7586                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7587                       GDI_DECORATION_SIZE, tile_size, tile_size,
7588                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
7589                       GDI_DECORATION_MASKED, deco_masked,
7590                       GDI_EVENT_MASK, event_mask,
7591                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7592                       GDI_CALLBACK_ACTION, HandleControlButtons,
7593                       GDI_END);
7594
7595     if (gi == NULL)
7596       Fail("cannot create gadget");
7597
7598     level_editor_gadget[id] = gi;
7599   }
7600
7601   // these values are not constant, but can change at runtime
7602   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
7603   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
7604   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
7605   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
7606   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
7607   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
7608   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
7609   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
7610   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
7611   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
7612   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
7613   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
7614
7615   // create buttons for scrolling of drawing area and element list
7616   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
7617   {
7618     int id = scrollbutton_info[i].gadget_id;
7619     int type_id = scrollbutton_info[i].gadget_type_id;
7620     int graphic = scrollbutton_info[i].graphic;
7621     struct GraphicInfo *gd = &graphic_info[graphic];
7622     Bitmap *gd_bitmap = gd->bitmap;
7623     int gd_x1 = gd->src_x;
7624     int gd_y1 = gd->src_y;
7625     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7626     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7627     int width  = gd->width;
7628     int height = gd->height;
7629     int x = scrollbutton_pos[i].x;
7630     int y = scrollbutton_pos[i].y;
7631     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7632
7633     if (type_id != i)
7634       Fail("'scrollbutton_info' structure corrupted at index %d -- please fix", i);
7635
7636     if (id == GADGET_ID_SCROLL_LIST_UP ||
7637         id == GADGET_ID_SCROLL_LIST_DOWN)
7638     {
7639       x += PX;
7640       y += PY;
7641     }
7642     else
7643     {
7644       x += SX;
7645       y += SY;
7646     }
7647
7648     gi = CreateGadget(GDI_CUSTOM_ID, id,
7649                       GDI_CUSTOM_TYPE_ID, type_id,
7650                       GDI_IMAGE_ID, graphic,
7651                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
7652                       GDI_X, x,
7653                       GDI_Y, y,
7654                       GDI_WIDTH, width,
7655                       GDI_HEIGHT, height,
7656                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7657                       GDI_STATE, GD_BUTTON_UNPRESSED,
7658                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7659                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7660                       GDI_EVENT_MASK, event_mask,
7661                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7662                       GDI_CALLBACK_ACTION, HandleControlButtons,
7663                       GDI_END);
7664
7665     if (gi == NULL)
7666       Fail("cannot create gadget");
7667
7668     level_editor_gadget[id] = gi;
7669   }
7670
7671   // create buttons for element list
7672   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7673   {
7674     int type_id = i;
7675     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
7676     int graphic = IMG_EDITOR_PALETTE_BUTTON;
7677     struct GraphicInfo *gd = &graphic_info[graphic];
7678     Bitmap *gd_bitmap = gd->bitmap;
7679     Bitmap *deco_bitmap;
7680     int deco_x, deco_y, deco_xpos, deco_ypos;
7681     int gd_x1 = gd->src_x;
7682     int gd_y1 = gd->src_y;
7683     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7684     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7685     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
7686     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
7687     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
7688     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
7689     int element = editor_elements[i];
7690     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
7691     unsigned int event_mask = GD_EVENT_RELEASED;
7692
7693     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
7694
7695     deco_xpos = (gd->width  - tile_size) / 2;
7696     deco_ypos = (gd->height - tile_size) / 2;
7697
7698     gi = CreateGadget(GDI_CUSTOM_ID, id,
7699                       GDI_CUSTOM_TYPE_ID, type_id,
7700                       GDI_IMAGE_ID, graphic,
7701                       GDI_INFO_TEXT, getElementInfoText(element),
7702                       GDI_X, x,
7703                       GDI_Y, y,
7704                       GDI_WIDTH, gd->width,
7705                       GDI_HEIGHT, gd->height,
7706                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7707                       GDI_STATE, GD_BUTTON_UNPRESSED,
7708                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7709                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7710                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7711                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7712                       GDI_DECORATION_SIZE, tile_size, tile_size,
7713                       GDI_DECORATION_SHIFTING, 1, 1,
7714                       GDI_EVENT_MASK, event_mask,
7715                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7716                       GDI_CALLBACK_ACTION, HandleControlButtons,
7717                       GDI_END);
7718
7719     if (gi == NULL)
7720       Fail("cannot create gadget");
7721
7722     level_editor_gadget[id] = gi;
7723   }
7724 }
7725
7726 static void CreateCounterButtons(void)
7727 {
7728   int max_infotext_len = getMaxInfoTextLength();
7729   int i;
7730
7731   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
7732   {
7733     int type_id = counterbutton_info[i].gadget_type_id;
7734     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
7735     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
7736     int j;
7737
7738     if (type_id != i)
7739       Fail("'counterbutton_info' structure corrupted at index %d -- please fix", i);
7740
7741     // determine horizontal position to the right of specified gadget
7742     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7743       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
7744            ED_GADGET_TEXT_DISTANCE);
7745
7746     // determine horizontal offset for leading text
7747     if (counterbutton_info[i].text_left != NULL)
7748       x += getTextWidthForGadget(counterbutton_info[i].text_left);
7749
7750     for (j = 0; j < 2; j++)
7751     {
7752       struct GadgetInfo *gi;
7753       int id = (j == 0 ?
7754                 counterbutton_info[i].gadget_id_down :
7755                 counterbutton_info[i].gadget_id_up);
7756       int graphic;
7757       struct GraphicInfo *gd;
7758       int gd_x1, gd_x2, gd_y1, gd_y2;
7759       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7760       char infotext[max_infotext_len + 1];
7761
7762       if (i == ED_COUNTER_ID_SELECT_LEVEL)
7763       {
7764         graphic = (j == 0 ?
7765                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
7766                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
7767
7768         event_mask |= GD_EVENT_RELEASED;
7769
7770         if (j == 0)
7771         {
7772           x = DX + editor.button.prev_level.x;
7773           y = DY + editor.button.prev_level.y;
7774         }
7775         else
7776         {
7777           x = DX + editor.button.next_level.x;
7778           y = DY + editor.button.next_level.y;
7779         }
7780       }
7781       else
7782       {
7783         graphic = (j == 0 ?
7784                    IMG_EDITOR_COUNTER_DOWN :
7785                    IMG_EDITOR_COUNTER_UP);
7786       }
7787
7788       gd = &graphic_info[graphic];
7789
7790       gd_x1 = gd->src_x;
7791       gd_y1 = gd->src_y;
7792       gd_x2 = gd->src_x + gd->pressed_xoffset;
7793       gd_y2 = gd->src_y + gd->pressed_yoffset;
7794
7795       sprintf(infotext, "%s counter value by 1, 5 or 10",
7796               (j == 0 ? "Decrease" : "Increase"));
7797
7798       gi = CreateGadget(GDI_CUSTOM_ID, id,
7799                         GDI_CUSTOM_TYPE_ID, type_id,
7800                         GDI_IMAGE_ID, graphic,
7801                         GDI_INFO_TEXT, infotext,
7802                         GDI_X, x,
7803                         GDI_Y, y,
7804                         GDI_WIDTH, gd->width,
7805                         GDI_HEIGHT, gd->height,
7806                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7807                         GDI_STATE, GD_BUTTON_UNPRESSED,
7808                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7809                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7810                         GDI_EVENT_MASK, event_mask,
7811                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7812                         GDI_CALLBACK_ACTION, HandleCounterButtons,
7813                         GDI_END);
7814
7815       if (gi == NULL)
7816         Fail("cannot create gadget");
7817
7818       level_editor_gadget[id] = gi;
7819       right_gadget_border[id] =
7820         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7821
7822       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
7823
7824       if (j == 0)
7825       {
7826         int font_type = FONT_INPUT_1;
7827         int font_type_active = FONT_INPUT_1_ACTIVE;
7828
7829         id = counterbutton_info[i].gadget_id_text;
7830
7831         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7832
7833         if (i == ED_COUNTER_ID_SELECT_LEVEL)
7834         {
7835           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
7836
7837           font_type = FONT_LEVEL_NUMBER;
7838           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
7839
7840           x = DX + editor.input.level_number.x;
7841           y = DY + editor.input.level_number.y;
7842         }
7843         else
7844         {
7845           graphic = IMG_EDITOR_COUNTER_INPUT;
7846         }
7847
7848         gd = &graphic_info[graphic];
7849
7850         gd_x1 = gd->src_x;
7851         gd_y1 = gd->src_y;
7852         gd_x2 = gd->src_x + gd->active_xoffset;
7853         gd_y2 = gd->src_y + gd->active_yoffset;
7854
7855         gi = CreateGadget(GDI_CUSTOM_ID, id,
7856                           GDI_CUSTOM_TYPE_ID, type_id,
7857                           GDI_IMAGE_ID, graphic,
7858                           GDI_INFO_TEXT, "Enter counter value",
7859                           GDI_X, x,
7860                           GDI_Y, y,
7861                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
7862                           GDI_NUMBER_VALUE, 0,
7863                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
7864                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
7865                           GDI_TEXT_SIZE, 3,     // minimal counter text size
7866                           GDI_TEXT_FONT, font_type,
7867                           GDI_TEXT_FONT_ACTIVE, font_type_active,
7868                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7869                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7870                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7871                           GDI_DESIGN_WIDTH, gd->width,
7872                           GDI_EVENT_MASK, event_mask,
7873                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7874                           GDI_CALLBACK_ACTION, HandleCounterButtons,
7875                           GDI_END);
7876
7877         if (gi == NULL)
7878           Fail("cannot create gadget");
7879
7880         level_editor_gadget[id] = gi;
7881         right_gadget_border[id] =
7882           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7883
7884         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
7885       }
7886     }
7887   }
7888 }
7889
7890 static void CreateDrawingAreas(void)
7891 {
7892   int i;
7893
7894   // these values are not constant, but can change at runtime
7895   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
7896   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
7897
7898   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
7899   {
7900     struct GadgetInfo *gi;
7901     int id = drawingarea_info[i].gadget_id;
7902     int type_id = drawingarea_info[i].gadget_type_id;
7903     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
7904     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
7905     int area_xsize = drawingarea_info[i].area_xsize;
7906     int area_ysize = drawingarea_info[i].area_ysize;
7907     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
7908                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
7909     unsigned int event_mask =
7910       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
7911       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
7912
7913     if (type_id != i)
7914       Fail("'drawingarea_info' structure corrupted at index %d -- please fix", i);
7915
7916     // determine horizontal position to the right of specified gadget
7917     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
7918       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
7919            ED_DRAWINGAREA_TEXT_DISTANCE);
7920
7921     // determine horizontal offset for leading text
7922     if (drawingarea_info[i].text_left != NULL)
7923       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
7924
7925     gi = CreateGadget(GDI_CUSTOM_ID, id,
7926                       GDI_CUSTOM_TYPE_ID, type_id,
7927                       GDI_X, x,
7928                       GDI_Y, y,
7929                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
7930                       GDI_AREA_SIZE, area_xsize, area_ysize,
7931                       GDI_ITEM_SIZE, item_size, item_size,
7932                       GDI_EVENT_MASK, event_mask,
7933                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
7934                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
7935                       GDI_END);
7936
7937     if (gi == NULL)
7938       Fail("cannot create gadget");
7939
7940     level_editor_gadget[id] = gi;
7941     right_gadget_border[id] =
7942       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
7943   }
7944 }
7945
7946 static void CreateTextInputGadgets(void)
7947 {
7948   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
7949   int max_infotext_len = getMaxInfoTextLength();
7950   int i;
7951
7952   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
7953   {
7954     int gd_x1 = gd->src_x;
7955     int gd_y1 = gd->src_y;
7956     int gd_x2 = gd->src_x + gd->active_xoffset;
7957     int gd_y2 = gd->src_y + gd->active_yoffset;
7958     struct GadgetInfo *gi;
7959     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7960     char infotext[MAX_OUTPUT_LINESIZE + 1];
7961     int id = textinput_info[i].gadget_id;
7962     int type_id = textinput_info[i].gadget_type_id;
7963     int x, y;
7964
7965     if (type_id != i)
7966       Fail("'textinput_info' structure corrupted at index %d -- please fix", i);
7967
7968     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
7969     {
7970       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
7971       int border_size = gd->border_size;
7972       int font_nr = FONT_INPUT_1;
7973       int font_height = getFontHeight(font_nr);
7974       int xoffset = element_border + TILEX + element_border + 3 * border_size;
7975       int yoffset = element_border + (TILEY - font_height) / 2;
7976
7977       x = (editor.settings.element_name.x != -1 ?
7978            editor.settings.element_name.x :
7979            editor.settings.element_graphic.x + xoffset) - border_size;
7980       y = (editor.settings.element_name.y != -1 ?
7981            editor.settings.element_name.y :
7982            editor.settings.element_graphic.y + yoffset) - border_size;
7983     }
7984     else
7985     {
7986       x = ED_SETTINGS_X(textinput_info[i].x);
7987       y = ED_SETTINGS_Y(textinput_info[i].y);
7988     }
7989
7990     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
7991     infotext[max_infotext_len] = '\0';
7992
7993     gi = CreateGadget(GDI_CUSTOM_ID, id,
7994                       GDI_CUSTOM_TYPE_ID, type_id,
7995                       GDI_INFO_TEXT, infotext,
7996                       GDI_X, SX + x,
7997                       GDI_Y, SY + y,
7998                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
7999                       GDI_TEXT_VALUE, textinput_info[i].value,
8000                       GDI_TEXT_SIZE, textinput_info[i].size,
8001                       GDI_TEXT_FONT, FONT_INPUT_1,
8002                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
8003                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8004                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8005                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8006                       GDI_DESIGN_WIDTH, gd->width,
8007                       GDI_EVENT_MASK, event_mask,
8008                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8009                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
8010                       GDI_END);
8011
8012     if (gi == NULL)
8013       Fail("cannot create gadget");
8014
8015     level_editor_gadget[id] = gi;
8016   }
8017 }
8018
8019 static void CreateTextAreaGadgets(void)
8020 {
8021   int max_infotext_len = getMaxInfoTextLength();
8022   int i;
8023
8024   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
8025   {
8026     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
8027     int gd_x1 = gd->src_x;
8028     int gd_y1 = gd->src_y;
8029     int gd_x2 = gd->src_x + gd->active_xoffset;
8030     int gd_y2 = gd->src_y + gd->active_yoffset;
8031     struct GadgetInfo *gi;
8032     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
8033     char infotext[MAX_OUTPUT_LINESIZE + 1];
8034     int id = textarea_info[i].gadget_id;
8035     int type_id = textarea_info[i].gadget_type_id;
8036     int area_xsize = textarea_info[i].xsize;
8037     int area_ysize = textarea_info[i].ysize;
8038
8039     if (type_id != i)
8040       Fail("'textarea_info' structure corrupted at index %d -- please fix", i);
8041
8042     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
8043     infotext[max_infotext_len] = '\0';
8044
8045     gi = CreateGadget(GDI_CUSTOM_ID, id,
8046                       GDI_CUSTOM_TYPE_ID, type_id,
8047                       GDI_INFO_TEXT, infotext,
8048                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
8049                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
8050                       GDI_TYPE, GD_TYPE_TEXT_AREA,
8051                       GDI_AREA_SIZE, area_xsize, area_ysize,
8052                       GDI_TEXT_FONT, FONT_INPUT_1,
8053                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
8054                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8055                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8056                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8057                       GDI_DESIGN_WIDTH, gd->width,
8058                       GDI_EVENT_MASK, event_mask,
8059                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8060                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
8061                       GDI_END);
8062
8063     if (gi == NULL)
8064       Fail("cannot create gadget");
8065
8066     level_editor_gadget[id] = gi;
8067   }
8068 }
8069
8070 static void CreateSelectboxGadgets(void)
8071 {
8072   int max_infotext_len = getMaxInfoTextLength();
8073
8074   int i, j;
8075
8076   for (i = 0; i < ED_NUM_SELECTBOX; i++)
8077   {
8078     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
8079     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
8080     int gd_x1 = gd->src_x;
8081     int gd_y1 = gd->src_y;
8082     int gd_x2 = gd->src_x + gd->active_xoffset;
8083     int gd_y2 = gd->src_y + gd->active_yoffset;
8084     int selectbox_button_xsize = gd2->width;
8085     struct GadgetInfo *gi;
8086     char infotext[MAX_OUTPUT_LINESIZE + 1];
8087     int id = selectbox_info[i].gadget_id;
8088     int type_id = selectbox_info[i].gadget_type_id;
8089     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
8090     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
8091     unsigned int event_mask =
8092       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
8093
8094     if (type_id != i)
8095       Fail("'selectbox_info' structure corrupted at index %d -- please fix", i);
8096
8097     if (selectbox_info[i].size == -1)   // dynamically determine size
8098     {
8099       // (we cannot use -1 for uninitialized values if we directly compare
8100       // with results from strlen(), because the '<' and '>' operation will
8101       // implicitely cast -1 to an unsigned integer value!)
8102       selectbox_info[i].size = 0;
8103
8104       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
8105         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
8106           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
8107
8108       selectbox_info[i].size++;         // add one character empty space
8109     }
8110
8111     // determine horizontal position to the right of specified gadget
8112     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
8113       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
8114            ED_GADGET_TEXT_DISTANCE);
8115
8116     // determine horizontal offset for leading text
8117     if (selectbox_info[i].text_left != NULL)
8118       x += getTextWidthForGadget(selectbox_info[i].text_left);
8119
8120     sprintf(infotext, "%s", selectbox_info[i].infotext);
8121     infotext[max_infotext_len] = '\0';
8122
8123     gi = CreateGadget(GDI_CUSTOM_ID, id,
8124                       GDI_CUSTOM_TYPE_ID, type_id,
8125                       GDI_INFO_TEXT, infotext,
8126                       GDI_X, x,
8127                       GDI_Y, y,
8128                       GDI_TYPE, GD_TYPE_SELECTBOX,
8129                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
8130                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
8131                       GDI_TEXT_SIZE, selectbox_info[i].size,
8132                       GDI_TEXT_FONT, FONT_INPUT_1,
8133                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
8134                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
8135                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8136                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8137                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8138                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
8139                       GDI_DESIGN_WIDTH, gd->width,
8140                       GDI_EVENT_MASK, event_mask,
8141                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8142                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
8143                       GDI_END);
8144
8145     if (gi == NULL)
8146       Fail("cannot create gadget");
8147
8148     level_editor_gadget[id] = gi;
8149     right_gadget_border[id] =
8150       getRightGadgetBorder(gi, selectbox_info[i].text_right);
8151   }
8152 }
8153
8154 static void CreateTextbuttonGadgets(void)
8155 {
8156   int max_infotext_len = getMaxInfoTextLength();
8157   int i;
8158
8159   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
8160   {
8161     int id = textbutton_info[i].gadget_id;
8162     int type_id = textbutton_info[i].gadget_type_id;
8163     int is_tab_button =
8164       ((id >= GADGET_ID_LEVELCONFIG_LEVEL && id <= GADGET_ID_LEVELCONFIG_ENGINE) ||
8165        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
8166     int graphic =
8167       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
8168     int gadget_distance =
8169       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
8170     struct GraphicInfo *gd = &graphic_info[graphic];
8171     int gd_x1 = gd->src_x;
8172     int gd_y1 = gd->src_y;
8173     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8174     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8175     int gd_x1a = gd->src_x + gd->active_xoffset;
8176     int gd_y1a = gd->src_y + gd->active_yoffset;
8177     int border_xsize = gd->border_size + gd->draw_xoffset;
8178     int border_ysize = gd->border_size;
8179     struct GadgetInfo *gi;
8180     unsigned int event_mask = GD_EVENT_RELEASED;
8181     char infotext[MAX_OUTPUT_LINESIZE + 1];
8182     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
8183     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
8184
8185     if (type_id != i)
8186       Fail("'textbutton_info' structure corrupted at index %d -- please fix", i);
8187
8188     if (textbutton_info[i].size == -1)  // dynamically determine size
8189       textbutton_info[i].size = strlen(textbutton_info[i].text);
8190
8191     sprintf(infotext, "%s", textbutton_info[i].infotext);
8192     infotext[max_infotext_len] = '\0';
8193
8194     // determine horizontal position to the right of specified gadget
8195     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8196     {
8197       int gadget_id_align = textbutton_info[i].gadget_id_align;
8198
8199       x = right_gadget_border[gadget_id_align] + gadget_distance;
8200
8201       if (textbutton_info[i].y == -1)
8202         y = level_editor_gadget[gadget_id_align]->y;
8203     }
8204
8205     // determine horizontal offset for leading text
8206     if (textbutton_info[i].text_left != NULL)
8207       x += getTextWidthForGadget(textbutton_info[i].text_left);
8208
8209     gi = CreateGadget(GDI_CUSTOM_ID, id,
8210                       GDI_CUSTOM_TYPE_ID, type_id,
8211                       GDI_IMAGE_ID, graphic,
8212                       GDI_INFO_TEXT, infotext,
8213                       GDI_X, x,
8214                       GDI_Y, y,
8215                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
8216                       GDI_TEXT_VALUE, textbutton_info[i].text,
8217                       GDI_TEXT_SIZE, textbutton_info[i].size,
8218                       GDI_TEXT_FONT, FONT_INPUT_2,
8219                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
8220                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8221                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8222                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8223                       GDI_BORDER_SIZE, border_xsize, border_ysize,
8224                       GDI_DESIGN_WIDTH, gd->width,
8225                       GDI_DECORATION_SHIFTING, 1, 1,
8226                       GDI_EVENT_MASK, event_mask,
8227                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8228                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
8229                       GDI_END);
8230
8231     if (gi == NULL)
8232       Fail("cannot create gadget");
8233
8234     level_editor_gadget[id] = gi;
8235     right_gadget_border[id] =
8236       getRightGadgetBorder(gi, textbutton_info[i].text_right);
8237   }
8238 }
8239
8240 static void CreateGraphicbuttonGadgets(void)
8241 {
8242   struct GadgetInfo *gi;
8243   int i;
8244
8245   // create buttons for scrolling of drawing area and element list
8246   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
8247   {
8248     int id = graphicbutton_info[i].gadget_id;
8249     int type_id = graphicbutton_info[i].gadget_type_id;
8250     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
8251     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
8252     int graphic = graphicbutton_info[i].graphic;
8253     struct GraphicInfo *gd = &graphic_info[graphic];
8254     int gd_x1 = gd->src_x;
8255     int gd_y1 = gd->src_y;
8256     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8257     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8258     unsigned int event_mask = GD_EVENT_RELEASED;
8259
8260     if (type_id != i)
8261       Fail("'graphicbutton_info' structure corrupted at index %d -- please fix", i);
8262
8263     // determine horizontal position to the right of specified gadget
8264     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8265       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
8266            ED_GADGET_TEXT_DISTANCE);
8267
8268     // determine horizontal offset for leading text
8269     if (graphicbutton_info[i].text_left != NULL)
8270       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
8271
8272     gi = CreateGadget(GDI_CUSTOM_ID, id,
8273                       GDI_CUSTOM_TYPE_ID, type_id,
8274                       GDI_IMAGE_ID, graphic,
8275                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
8276                       GDI_X, x,
8277                       GDI_Y, y,
8278                       GDI_WIDTH, gd->width,
8279                       GDI_HEIGHT, gd->height,
8280                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
8281                       GDI_STATE, GD_BUTTON_UNPRESSED,
8282                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8283                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8284                       GDI_EVENT_MASK, event_mask,
8285                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8286                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
8287                       GDI_END);
8288
8289     if (gi == NULL)
8290       Fail("cannot create gadget");
8291
8292     level_editor_gadget[id] = gi;
8293     right_gadget_border[id] =
8294       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
8295   }
8296 }
8297
8298 static void CreateScrollbarGadgets(void)
8299 {
8300   int i;
8301
8302   // these values are not constant, but can change at runtime
8303   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
8304     SX + ED_SCROLL_HORIZONTAL_XPOS;
8305   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
8306     SY + ED_SCROLL_HORIZONTAL_YPOS;
8307   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
8308     ED_SCROLL_HORIZONTAL_XSIZE;
8309   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
8310     ED_SCROLL_HORIZONTAL_YSIZE;
8311   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
8312   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
8313   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
8314   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
8315
8316   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
8317     SX + ED_SCROLL_VERTICAL_XPOS;
8318   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
8319     SY + ED_SCROLL_VERTICAL_YPOS;
8320   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
8321     ED_SCROLL_VERTICAL_XSIZE;
8322   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
8323     ED_SCROLL_VERTICAL_YSIZE;
8324   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
8325   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
8326   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
8327   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
8328
8329   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
8330     PX + ED_SCROLL2_VERTICAL_XPOS;
8331   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
8332     PY + ED_SCROLL2_VERTICAL_YPOS;
8333   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
8334     ED_SCROLL2_VERTICAL_XSIZE;
8335   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
8336     ED_SCROLL2_VERTICAL_YSIZE;
8337   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
8338   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
8339   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
8340   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
8341
8342   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
8343   {
8344     int id = scrollbar_info[i].gadget_id;
8345     int type_id = scrollbar_info[i].gadget_type_id;
8346     int graphic = scrollbar_info[i].graphic;
8347     struct GraphicInfo *gd = &graphic_info[graphic];
8348     int gd_x1 = gd->src_x;
8349     int gd_y1 = gd->src_y;
8350     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8351     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8352     struct GadgetInfo *gi;
8353     int items_max, items_visible, item_position;
8354     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
8355
8356     if (type_id != i)
8357       Fail("'scrollbar_info' structure corrupted at index %d -- please fix", i);
8358
8359     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
8360     {
8361       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
8362       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
8363       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
8364     }
8365     else        // drawing area scrollbars
8366     {
8367       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
8368       {
8369         items_max = MAX(lev_fieldx + 2, ed_fieldx);
8370         items_visible = ed_fieldx;
8371         item_position = 0;
8372       }
8373       else
8374       {
8375         items_max = MAX(lev_fieldy + 2, ed_fieldy);
8376         items_visible = ed_fieldy;
8377         item_position = 0;
8378       }
8379     }
8380
8381     gi = CreateGadget(GDI_CUSTOM_ID, id,
8382                       GDI_CUSTOM_TYPE_ID, type_id,
8383                       GDI_IMAGE_ID, graphic,
8384                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
8385                       GDI_X, scrollbar_pos[i].x,
8386                       GDI_Y, scrollbar_pos[i].y,
8387                       GDI_WIDTH, scrollbar_pos[i].width,
8388                       GDI_HEIGHT, scrollbar_pos[i].height,
8389                       GDI_TYPE, scrollbar_info[i].type,
8390                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
8391                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8392                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
8393                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
8394                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
8395                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
8396                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
8397                       GDI_STATE, GD_BUTTON_UNPRESSED,
8398                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8399                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8400                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8401                       GDI_EVENT_MASK, event_mask,
8402                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8403                       GDI_CALLBACK_ACTION, HandleControlButtons,
8404                       GDI_END);
8405
8406     if (gi == NULL)
8407       Fail("cannot create gadget");
8408
8409     level_editor_gadget[id] = gi;
8410   }
8411 }
8412
8413 static void CreateCheckbuttonGadgets(void)
8414 {
8415   struct GadgetInfo *gi;
8416   int i;
8417
8418   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
8419   {
8420     int id = checkbutton_info[i].gadget_id;
8421     int type_id = checkbutton_info[i].gadget_type_id;
8422     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
8423                    IMG_EDITOR_CHECKBOX);
8424     struct GraphicInfo *gd = &graphic_info[graphic];
8425     int gd_x1 = gd->src_x;
8426     int gd_y1 = gd->src_y;
8427     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8428     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8429     int gd_x1a = gd->src_x + gd->active_xoffset;
8430     int gd_y1a = gd->src_y + gd->active_yoffset;
8431     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8432     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8433     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
8434     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
8435     unsigned int event_mask = GD_EVENT_PRESSED;
8436
8437     if (type_id != i)
8438       Fail("'checkbutton_info' structure corrupted at index %d -- please fix", i);
8439
8440     // determine horizontal position to the right of specified gadget
8441     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8442       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
8443            ED_GADGET_TEXT_DISTANCE);
8444
8445     // determine horizontal offset for leading text
8446     if (checkbutton_info[i].text_left != NULL)
8447       x += getTextWidthForGadget(checkbutton_info[i].text_left);
8448
8449     gi = CreateGadget(GDI_CUSTOM_ID, id,
8450                       GDI_CUSTOM_TYPE_ID, type_id,
8451                       GDI_IMAGE_ID, graphic,
8452                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
8453                       GDI_X, x,
8454                       GDI_Y, y,
8455                       GDI_WIDTH, gd->width,
8456                       GDI_HEIGHT, gd->height,
8457                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
8458                       GDI_CHECKED, *checkbutton_info[i].value,
8459                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8460                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8461                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8462                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8463                       GDI_EVENT_MASK, event_mask,
8464                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8465                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
8466                       GDI_END);
8467
8468     if (gi == NULL)
8469       Fail("cannot create gadget");
8470
8471     level_editor_gadget[id] = gi;
8472     right_gadget_border[id] =
8473       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
8474   }
8475 }
8476
8477 static void CreateRadiobuttonGadgets(void)
8478 {
8479   int graphic = IMG_EDITOR_RADIOBUTTON;
8480   struct GraphicInfo *gd = &graphic_info[graphic];
8481   int gd_x1 = gd->src_x;
8482   int gd_y1 = gd->src_y;
8483   int gd_x2 = gd->src_x + gd->pressed_xoffset;
8484   int gd_y2 = gd->src_y + gd->pressed_yoffset;
8485   int gd_x1a = gd->src_x + gd->active_xoffset;
8486   int gd_y1a = gd->src_y + gd->active_yoffset;
8487   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8488   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8489   struct GadgetInfo *gi;
8490   int i;
8491
8492   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
8493   {
8494     int id = radiobutton_info[i].gadget_id;
8495     int type_id = radiobutton_info[i].gadget_type_id;
8496     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
8497     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
8498     unsigned int event_mask = GD_EVENT_PRESSED;
8499
8500     if (type_id != i)
8501       Fail("'radiobutton_info' structure corrupted at index %d -- please fix", i);
8502
8503     int checked =
8504       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
8505
8506     // determine horizontal position to the right of specified gadget
8507     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
8508       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
8509            ED_GADGET_TEXT_DISTANCE);
8510
8511     // determine horizontal offset for leading text
8512     if (radiobutton_info[i].text_left != NULL)
8513       x += getTextWidthForGadget(radiobutton_info[i].text_left);
8514
8515     gi = CreateGadget(GDI_CUSTOM_ID, id,
8516                       GDI_CUSTOM_TYPE_ID, type_id,
8517                       GDI_IMAGE_ID, graphic,
8518                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
8519                       GDI_X, x,
8520                       GDI_Y, y,
8521                       GDI_WIDTH, gd->width,
8522                       GDI_HEIGHT, gd->height,
8523                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
8524                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
8525                       GDI_CHECKED, checked,
8526                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8527                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8528                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8529                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8530                       GDI_EVENT_MASK, event_mask,
8531                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8532                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
8533                       GDI_END);
8534
8535     if (gi == NULL)
8536       Fail("cannot create gadget");
8537
8538     level_editor_gadget[id] = gi;
8539     right_gadget_border[id] =
8540       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
8541   }
8542 }
8543
8544 void CreateLevelEditorGadgets(void)
8545 {
8546   // force EDITOR font inside level editor
8547   SetFontStatus(GAME_MODE_EDITOR);
8548
8549   // these values are not constant, but can change at runtime
8550   ed_fieldx = MAX_ED_FIELDX - 1;
8551   ed_fieldy = MAX_ED_FIELDY - 1;
8552
8553   num_editor_gadgets = NUM_EDITOR_GADGETS;
8554
8555   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
8556
8557   level_editor_gadget =
8558     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
8559   right_gadget_border =
8560     checked_calloc(num_editor_gadgets * sizeof(int));
8561
8562   // set number of empty (padding) element buttons to maximum number of buttons
8563   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
8564
8565   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
8566   editor_el_empty_ptr = editor_el_empty;
8567
8568   use_permanent_palette = !editor.palette.show_as_separate_screen;
8569
8570   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
8571
8572   ReinitializeElementList();
8573
8574   CreateControlButtons();
8575   CreateScrollbarGadgets();
8576
8577   // order of function calls is important because of cross-references
8578   CreateCheckbuttonGadgets();
8579   CreateCounterButtons();
8580   CreateRadiobuttonGadgets();
8581   CreateTextInputGadgets();
8582   CreateTextAreaGadgets();
8583   CreateSelectboxGadgets();
8584   CreateGraphicbuttonGadgets();
8585   CreateTextbuttonGadgets();
8586   CreateDrawingAreas();
8587
8588   ResetFontStatus();
8589 }
8590
8591 void FreeLevelEditorGadgets(void)
8592 {
8593   int i;
8594
8595   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
8596
8597   for (i = 0; i < num_editor_gadgets; i++)
8598   {
8599     FreeGadget(level_editor_gadget[i]);
8600
8601     level_editor_gadget[i] = NULL;
8602   }
8603
8604   checked_free(level_editor_gadget);
8605   checked_free(right_gadget_border);
8606
8607   checked_free(editor_el_empty);
8608 }
8609
8610 static void MapCounterButtons(int id)
8611 {
8612   int font_nr = FONT_TEXT_1;
8613   int font_height = getFontHeight(font_nr);
8614   int gadget_id_down = counterbutton_info[id].gadget_id_down;
8615   int gadget_id_text = counterbutton_info[id].gadget_id_text;
8616   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
8617   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
8618   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
8619   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
8620   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
8621   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8622   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8623   int yoffset = (gi_down->height - font_height) / 2;
8624   int x_left = gi_down->x - xoffset_left;
8625   int x_right;  // set after gadget position was modified
8626   int y_above = gi_down->y - yoffset_above;
8627   int x = gi_down->x;
8628   int y;        // set after gadget position was modified
8629
8630   // counter limits must be changed first to prevent value truncation
8631   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
8632                             counterbutton_info[id].max_value);
8633
8634   // right text position might have changed after setting position above
8635   x_right = gi_up->x + gi_up->width + xoffset_right;
8636
8637   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
8638
8639   // set position for counter gadgets with dynamically determined position
8640   if (id != ED_COUNTER_ID_SELECT_LEVEL)
8641   {
8642     ModifyGadget(gi_down, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8643     ModifyGadget(gi_text, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8644     ModifyGadget(gi_up,   GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8645   }
8646
8647   // vertical position might have changed after setting position above
8648   y = gi_up->y + yoffset;
8649
8650   if (counterbutton_info[id].text_above)
8651     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
8652
8653   if (counterbutton_info[id].text_left)
8654     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
8655
8656   if (counterbutton_info[id].text_right)
8657     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
8658
8659   MapGadget(gi_down);
8660   MapGadget(gi_text);
8661   MapGadget(gi_up);
8662 }
8663
8664 static void MapControlButtons(void)
8665 {
8666   int counter_id;
8667   int i;
8668
8669   // map toolbox buttons (excluding special CE toolbox buttons)
8670   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
8671     MapGadget(level_editor_gadget[i]);
8672
8673   // map toolbox buttons (element properties buttons)
8674   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
8675     MapGadget(level_editor_gadget[i]);
8676
8677   if (use_permanent_palette)
8678   {
8679     // map buttons to select elements
8680     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
8681       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
8682     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
8683     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
8684     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
8685   }
8686
8687   // map buttons to select level
8688   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
8689   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
8690   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
8691   MapCounterButtons(counter_id);
8692 }
8693
8694 static void MapDrawingArea(int id)
8695 {
8696   int font_nr = FONT_TEXT_1;
8697   int font_height = getFontHeight(font_nr);
8698   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
8699   int area_xsize = gi->drawing.area_xsize;
8700   int area_ysize = gi->drawing.area_ysize;
8701   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8702   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
8703   int x_left  = gi->x - xoffset_left - ED_DRAWINGAREA_BORDER_SIZE;
8704   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
8705   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
8706   int x_below = gi->x + (gi->width - xoffset_below) / 2;
8707   int y_side  = gi->y + (gi->height - font_height) / 2;
8708   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
8709   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
8710
8711   if (drawingarea_info[id].text_left)
8712     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
8713
8714   if (drawingarea_info[id].text_right)
8715     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
8716
8717   if (drawingarea_info[id].text_above)
8718     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
8719
8720   if (drawingarea_info[id].text_below)
8721     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
8722
8723   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
8724   {
8725     DrawElementBorder(gi->x, gi->y,
8726                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
8727                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
8728
8729     DrawDrawingArea(id);
8730   }
8731
8732   MapGadget(gi);
8733 }
8734
8735 static void MapTextInputGadget(int id)
8736 {
8737   int font_nr = FONT_TEXT_1;
8738   int font_height = getFontHeight(font_nr);
8739   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
8740   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8741   int x_above = ED_SETTINGS_X(textinput_info[id].x);
8742   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
8743
8744   if (textinput_info[id].text_above)
8745     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
8746
8747   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
8748
8749   MapGadget(gi);
8750 }
8751
8752 static void MapTextAreaGadget(int id)
8753 {
8754   int font_nr = FONT_TEXT_1;
8755   int font_height = getFontHeight(font_nr);
8756   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
8757   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8758   int x_above = ED_SETTINGS_X(textarea_info[id].x);
8759   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
8760   char *text_above = textarea_info[id].text_above;
8761
8762   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
8763     text_above = textarea_info[id].text_above_cropped;
8764
8765   if (text_above)
8766     DrawTextS(x_above, y_above, font_nr, text_above);
8767
8768   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
8769
8770   MapGadget(gi);
8771 }
8772
8773 static void MapSelectboxGadget(int id)
8774 {
8775   int font_nr = FONT_TEXT_1;
8776   int font_height = getFontHeight(font_nr);
8777   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
8778   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
8779   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8780   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8781   int yoffset = (gi->height - font_height) / 2;
8782   int x_left = gi->x - xoffset_left;
8783   int x_right = gi->x + gi->width + xoffset_right;
8784   int y_above = gi->y - yoffset_above;
8785   int x = gi->x;
8786   int y = gi->y + yoffset;
8787
8788   if (selectbox_info[id].text_above)
8789     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
8790
8791   if (selectbox_info[id].text_left)
8792     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
8793
8794   if (selectbox_info[id].text_right)
8795     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
8796
8797   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
8798
8799   MapGadget(gi);
8800 }
8801
8802 static void MapTextbuttonGadget(int id)
8803 {
8804   int font_nr = FONT_TEXT_1;
8805   int font_height = getFontHeight(font_nr);
8806   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
8807   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
8808   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8809   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8810   int yoffset = (gi->height - font_height) / 2;
8811   int x_left = gi->x - xoffset_left;
8812   int x_right = gi->x + gi->width + xoffset_right;
8813   int y_above = gi->y - yoffset_above;
8814   int x = gi->x;
8815   int y = gi->y + yoffset;
8816
8817   // only show button to delete change pages when more than minimum pages
8818   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
8819       custom_element.num_change_pages == MIN_CHANGE_PAGES)
8820     return;
8821
8822   if (textbutton_info[id].text_above)
8823     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
8824
8825   if (textbutton_info[id].text_left)
8826     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
8827
8828   if (textbutton_info[id].text_right)
8829     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
8830
8831   MapGadget(gi);
8832 }
8833
8834 static void MapGraphicbuttonGadget(int id)
8835 {
8836   int font_nr = FONT_TEXT_1;
8837   int font_height = getFontHeight(font_nr);
8838   struct GadgetInfo *gi = level_editor_gadget[graphicbutton_info[id].gadget_id];
8839   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
8840   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8841   int yoffset = (gi->height - font_height) / 2;
8842   int x_left = gi->x - xoffset_left;
8843   int x_right = gi->x + gi->width + xoffset_right;
8844   int y = gi->y + yoffset;
8845
8846   if (graphicbutton_info[id].text_left)
8847     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
8848
8849   if (graphicbutton_info[id].text_right)
8850     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
8851
8852   MapGadget(gi);
8853 }
8854
8855 static void MapRadiobuttonGadget(int id)
8856 {
8857   int font_nr = FONT_TEXT_1;
8858   int font_height = getFontHeight(font_nr);
8859   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
8860   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8861   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8862   int yoffset = (gi->height - font_height) / 2;
8863   int x_left = gi->x - xoffset_left;
8864   int x_right = gi->x + gi->width + xoffset_right;
8865   int y = gi->y + yoffset;
8866   boolean checked =
8867     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
8868
8869   if (radiobutton_info[id].text_left)
8870     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
8871
8872   if (radiobutton_info[id].text_right)
8873     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
8874
8875   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
8876
8877   MapGadget(gi);
8878 }
8879
8880 static void MapCheckbuttonGadget(int id)
8881 {
8882   int font_nr = FONT_TEXT_1;
8883   int font_height = getFontHeight(font_nr);
8884   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
8885   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8886   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8887   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8888   int yoffset = (gi->height - font_height) / 2;
8889   int y_above = gi->y - yoffset_above;
8890   int x = gi->x;
8891   int x_left, x_right, y;       // set after gadget position was modified
8892
8893   // set position for gadgets with dynamically determined position
8894   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
8895     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x), GDI_END);
8896   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
8897
8898   x_left = gi->x - xoffset_left;
8899   x_right = gi->x + gi->width + xoffset_right;
8900   y = gi->y + yoffset;
8901
8902   if (checkbutton_info[id].text_above)
8903     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
8904
8905   if (checkbutton_info[id].text_left)
8906     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
8907
8908   if (checkbutton_info[id].text_right)
8909     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
8910
8911   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
8912
8913   MapGadget(gi);
8914 }
8915
8916 static void MapMainDrawingArea(void)
8917 {
8918   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
8919   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
8920   int i;
8921
8922   if (suppressBorderElement())
8923   {
8924     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
8925     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
8926   }
8927
8928   for (i = ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
8929   {
8930     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
8931           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
8932          no_horizontal_scrollbar) ||
8933         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
8934           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
8935          no_vertical_scrollbar))
8936       continue;
8937
8938     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
8939   }
8940
8941   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
8942   {
8943     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
8944         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
8945       continue;
8946
8947     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
8948   }
8949
8950   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
8951 }
8952
8953 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
8954 {
8955   int i;
8956
8957   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
8958   {
8959     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
8960         i == GADGET_ID_CUSTOM_COPY_TO ||
8961         i == GADGET_ID_CUSTOM_EXCHANGE ||
8962         i == GADGET_ID_CUSTOM_COPY ||
8963         i == GADGET_ID_CUSTOM_PASTE)
8964     {
8965       if (map)
8966         MapGadget(level_editor_gadget[i]);
8967       else
8968         UnmapGadget(level_editor_gadget[i]);
8969     }
8970   }
8971 }
8972
8973 static void MapLevelEditorToolboxCustomGadgets(void)
8974 {
8975   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
8976 }
8977
8978 static void MapLevelEditorToolboxCustomGadgetsIfNeeded(void)
8979 {
8980   if (IS_CUSTOM_ELEMENT(properties_element) ||
8981       IS_GROUP_ELEMENT(properties_element) ||
8982       IS_EMPTY_ELEMENT(properties_element))
8983     MapLevelEditorToolboxCustomGadgets();
8984 }
8985
8986 static void UnmapLevelEditorToolboxCustomGadgets(void)
8987 {
8988   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
8989 }
8990
8991 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
8992 {
8993   int i;
8994
8995   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
8996   {
8997     if (i != GADGET_ID_SINGLE_ITEMS &&
8998         i != GADGET_ID_PICK_ELEMENT)
8999     {
9000       struct GadgetInfo *gi = level_editor_gadget[i];
9001
9002       if (map)
9003       {
9004         MapGadget(gi);
9005       }
9006       else
9007       {
9008         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
9009         struct GraphicInfo *gd = &graphic_info[graphic];
9010
9011         UnmapGadget(gi);
9012
9013         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
9014                    gi->width, gi->height, gi->x, gi->y);
9015
9016         redraw_mask |= REDRAW_DOOR_3;
9017       }
9018     }
9019   }
9020 }
9021
9022 static void MapLevelEditorToolboxDrawingGadgets(void)
9023 {
9024   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
9025 }
9026
9027 static void UnmapLevelEditorToolboxDrawingGadgets(void)
9028 {
9029   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
9030 }
9031
9032 static void UnmapDrawingArea(int id)
9033 {
9034   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
9035 }
9036
9037 static void UnmapLevelEditorFieldGadgets(void)
9038 {
9039   int i;
9040
9041   for (i = 0; i < num_editor_gadgets; i++)
9042     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
9043                           level_editor_gadget[i]->y))
9044       UnmapGadget(level_editor_gadget[i]);
9045 }
9046
9047 void UnmapLevelEditorGadgets(void)
9048 {
9049   int i;
9050
9051   for (i = 0; i < num_editor_gadgets; i++)
9052     UnmapGadget(level_editor_gadget[i]);
9053 }
9054
9055 static void ResetUndoBuffer(void)
9056 {
9057   undo_buffer_position = -1;
9058   undo_buffer_steps = -1;
9059   redo_buffer_steps = 0;
9060
9061   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
9062
9063   level.changed = FALSE;
9064 }
9065
9066 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
9067 {
9068   if (remap_toolbox_gadgets)
9069   {
9070     ModifyEditorElementList();
9071     RedrawDrawingElements();
9072   }
9073
9074   if (edit_mode == ED_MODE_LEVELCONFIG)
9075     DrawLevelConfigWindow();
9076   else if (edit_mode == ED_MODE_PROPERTIES)
9077     DrawPropertiesWindow();
9078   else if (edit_mode == ED_MODE_PALETTE)
9079     DrawPaletteWindow();
9080   else  // edit_mode == ED_MODE_DRAWING
9081     DrawDrawingWindowExt(remap_toolbox_gadgets);
9082 }
9083
9084 static void DrawEditModeWindow(void)
9085 {
9086   DrawEditModeWindowExt(TRUE);
9087 }
9088
9089 static void DrawEditModeWindow_PlayfieldOnly(void)
9090 {
9091   DrawEditModeWindowExt(FALSE);
9092 }
9093
9094 static void ChangeEditModeWindow(int new_edit_mode)
9095 {
9096   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
9097
9098   DrawEditModeWindow();
9099 }
9100
9101 static boolean LevelChanged(void)
9102 {
9103   boolean field_changed = FALSE;
9104   int x, y;
9105
9106   for (y = 0; y < lev_fieldy; y++)
9107     for (x = 0; x < lev_fieldx; x++)
9108       if (Tile[x][y] != level.field[x][y])
9109         field_changed = TRUE;
9110
9111   return (level.changed || field_changed);
9112 }
9113
9114 static boolean PrepareSavingIntoPersonalLevelSet(void)
9115 {
9116   static LevelDirTree *last_copied_leveldir = NULL;
9117   static LevelDirTree *last_written_leveldir = NULL;
9118   static int last_copied_level_nr = -1;
9119   static int last_written_level_nr = -1;
9120   LevelDirTree *leveldir_former = leveldir_current;
9121   int level_nr_former = level_nr;
9122   int new_level_nr;
9123
9124   // remember last mod/save so that for current session, we write
9125   // back to the same personal copy, asking only about overwrite.
9126   if (leveldir_current == last_copied_leveldir &&
9127       level_nr == last_copied_level_nr)
9128   {
9129     // "cd" to personal level set dir (as used when writing last copy)
9130     leveldir_current = last_written_leveldir;
9131     level_nr = last_written_level_nr;
9132
9133     return TRUE;
9134   }
9135
9136   if (!Request("This level is read-only! "
9137                "Save into personal level set?", REQ_ASK))
9138     return FALSE;
9139
9140   // "cd" to personal level set dir (for writing copy the first time)
9141   leveldir_current =
9142     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
9143
9144   // this may happen if "setup.internal.create_user_levelset" is FALSE
9145   // or if file "levelinfo.conf" is missing in personal user level set
9146   if (leveldir_current == NULL)
9147   {
9148     Request("Cannot find personal level set?!", REQ_CONFIRM);
9149
9150     leveldir_current = leveldir_former;
9151
9152     return FALSE;
9153   }
9154
9155   // find unused level number
9156   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
9157   {
9158     static char *level_filename = NULL;
9159
9160     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
9161
9162     if (!fileExists(level_filename))
9163       break;
9164   }
9165
9166   last_copied_leveldir = leveldir_former;
9167   last_copied_level_nr = level_nr_former;
9168
9169   last_written_leveldir = leveldir_current;
9170   last_written_level_nr = level_nr = new_level_nr;
9171
9172   return TRUE;
9173 }
9174
9175 static void ModifyLevelConfigForSavingIntoPersonalLevelSet(char *former_name)
9176 {
9177   static char *filename_levelinfo = NULL, *mod_name = NULL;
9178   FILE *file;
9179
9180   // annotate this copy-and-mod in personal levelinfo.conf
9181   setString(&filename_levelinfo,
9182             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
9183
9184   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
9185   {
9186     fprintf(file, "\n");
9187     fprintf(file, "# level %d was modified from:\n", level_nr);
9188     fprintf(file, "# - previous level set name:    %s\n",
9189             former_name);
9190     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
9191             level.file_info.nr, level.name);
9192     fprintf(file, "# - previous author:            %s\n",
9193             level.author);
9194     fprintf(file, "# - previous save date:         ");
9195
9196     if (level.creation_date.src == DATE_SRC_LEVELFILE)
9197     {
9198       fprintf(file, "%04d-%02d-%02d\n",
9199               level.creation_date.year,
9200               level.creation_date.month,
9201               level.creation_date.day);
9202     }
9203     else
9204     {
9205       fprintf(file, "not recorded\n");
9206     }
9207
9208     fclose(file);
9209   }
9210
9211   if (level_nr > leveldir_current->last_level)
9212     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
9213
9214   // else: allow the save even if annotation failed
9215
9216   // now... spray graffiti on the old level vital statistics
9217   // user can change these; just trying to set a good baseline
9218
9219   // don't truncate names for fear of making offensive or silly:
9220   // long-named original author only recorded in levelinfo.conf.
9221   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
9222   if (!strEqual(level.author, leveldir_current->author))
9223   {
9224     setString(&mod_name, getStringCat3(leveldir_current->author,
9225                                        " after ", level.author));
9226
9227     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
9228       setString(&mod_name,
9229                 getStringCat2(leveldir_current->author, " (ed.)"));
9230
9231     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
9232       setString(&mod_name, leveldir_current->author);
9233
9234     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
9235
9236     // less worried about truncation here
9237     setString(&mod_name, getStringCat2("Mod: ", level.name));
9238     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
9239   }
9240 }
9241
9242 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
9243                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
9244 {
9245   int x, y;
9246
9247   for (x = 0; x < lev_fieldx; x++)
9248     for (y = 0; y < lev_fieldy; y++)
9249       dst[x][y] = src[x][y];
9250 }
9251
9252 static int setSelectboxValue(int selectbox_id, int new_value)
9253 {
9254   int new_index_value = 0;
9255   int i;
9256
9257   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
9258     if (selectbox_info[selectbox_id].options[i].value == new_value)
9259       new_index_value = i;
9260
9261   *selectbox_info[selectbox_id].value =
9262     selectbox_info[selectbox_id].options[new_index_value].value;
9263
9264   return new_index_value;
9265 }
9266
9267 static void setSelectboxSpecialActionVariablesIfNeeded(void)
9268 {
9269   int i;
9270
9271   // change action mode and arg variables according to action type variable
9272   for (i = 0; action_arg_options[i].value != -1; i++)
9273   {
9274     if (action_arg_options[i].value == custom_element_change.action_type)
9275     {
9276       int mode = action_arg_options[i].mode;
9277
9278       // only change if corresponding selectbox has changed
9279       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
9280           action_arg_modes[mode])
9281         custom_element_change.action_mode = -1;
9282
9283       // only change if corresponding selectbox has changed
9284       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
9285           action_arg_options[i].options)
9286         custom_element_change.action_arg = -1;
9287
9288       break;
9289     }
9290   }
9291 }
9292
9293 static void setSelectboxSpecialActionOptions(void)
9294 {
9295   int i;
9296
9297   // change action mode and arg selectbox according to action type selectbox
9298   for (i = 0; action_arg_options[i].value != -1; i++)
9299   {
9300     if (action_arg_options[i].value == custom_element_change.action_type)
9301     {
9302       int mode = action_arg_options[i].mode;
9303
9304       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
9305                                    action_arg_modes[mode]);
9306       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
9307                                  custom_element_change.action_mode);
9308
9309       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
9310                                    action_arg_options[i].options);
9311       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
9312                                  custom_element_change.action_arg);
9313       break;
9314     }
9315   }
9316 }
9317
9318 static void copy_custom_element_settings(int element_from, int element_to)
9319 {
9320   struct ElementInfo *ei_from = &element_info[element_from];
9321   struct ElementInfo *ei_to = &element_info[element_to];
9322
9323   copyElementInfo(ei_from, ei_to);
9324 }
9325
9326 static void replace_custom_element_in_settings(int element_from,
9327                                                int element_to)
9328 {
9329   int i, j, x, y;
9330
9331   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9332   {
9333     struct ElementInfo *ei = &element_info[i];
9334
9335     for (y = 0; y < 3; y++)
9336       for (x = 0; x < 3; x++)
9337         if (ei->content.e[x][y] == element_from)
9338           ei->content.e[x][y] = element_to;
9339
9340     for (j = 0; j < ei->num_change_pages; j++)
9341     {
9342       struct ElementChangeInfo *change = &ei->change_page[j];
9343
9344       if (change->target_element == element_from)
9345         change->target_element = element_to;
9346
9347       if (change->initial_trigger_element == element_from)
9348         change->initial_trigger_element = element_to;
9349
9350       if (change->action_element == element_from)
9351         change->action_element = element_to;
9352
9353       for (y = 0; y < 3; y++)
9354         for (x = 0; x < 3; x++)
9355           if (change->target_content.e[x][y] == element_from)
9356             change->target_content.e[x][y] = element_to;
9357     }
9358
9359     if (ei->group != NULL)                              // group or internal
9360       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
9361         if (ei->group->element[j] == element_from)
9362           ei->group->element[j] = element_to;
9363   }
9364 }
9365
9366 static void replace_custom_element_in_playfield(int element_from,
9367                                                 int element_to)
9368 {
9369   int x, y;
9370
9371   for (x = 0; x < lev_fieldx; x++)
9372     for (y = 0; y < lev_fieldy; y++)
9373       if (Tile[x][y] == element_from)
9374         Tile[x][y] = element_to;
9375 }
9376
9377 static boolean CopyCustomElement(int element_old, int element_new,
9378                                  int copy_mode)
9379 {
9380   int copy_mode_orig = copy_mode;
9381
9382   if (copy_mode == GADGET_ID_CUSTOM_COPY)
9383   {
9384     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
9385                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9386     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9387   }
9388   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
9389   {
9390     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
9391                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9392     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9393
9394     level.changed = TRUE;
9395   }
9396   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
9397   {
9398     Request("Please choose custom element!", REQ_CONFIRM);
9399
9400     return FALSE;
9401   }
9402   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
9403   {
9404     Request("Please choose group element!", REQ_CONFIRM);
9405
9406     return FALSE;
9407   }
9408   else if (IS_EMPTY_ELEMENT(element_old) && !IS_EMPTY_ELEMENT(element_new))
9409   {
9410     Request("Please choose empty element!", REQ_CONFIRM);
9411
9412     return FALSE;
9413   }
9414   else
9415   {
9416     level.changed = TRUE;
9417   }
9418
9419   // when modifying custom/group element, ask for copying level template
9420   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
9421   {
9422     if (!AskToCopyAndModifyLevelTemplate())
9423       return FALSE;
9424   }
9425
9426   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
9427   {
9428     copy_custom_element_settings(element_new, element_old);
9429   }
9430   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
9431   {
9432     copy_custom_element_settings(element_old, element_new);
9433   }
9434   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
9435   {
9436     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
9437     copy_custom_element_settings(element_new, element_old);
9438     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
9439
9440     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
9441     replace_custom_element_in_settings(element_new, element_old);
9442     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
9443
9444     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
9445     replace_custom_element_in_playfield(element_new, element_old);
9446     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
9447   }
9448
9449   UpdateCustomElementGraphicGadgets();
9450   DrawPropertiesWindow();
9451
9452   return TRUE;
9453 }
9454
9455 static void CopyCustomElementPropertiesToEditor(int element)
9456 {
9457   int i;
9458   int current_change_page = element_info[element].current_change_page;
9459
9460   // dynamically (re)build selectbox for selecting change page
9461   for (i = 0; i < element_info[element].num_change_pages; i++)
9462   {
9463     sprintf(options_change_page_strings[i], "%d", i + 1);
9464
9465     options_change_page[i].value = i;
9466     options_change_page[i].text = options_change_page_strings[i];
9467   }
9468
9469   options_change_page[i].value = -1;
9470   options_change_page[i].text = NULL;
9471
9472   // needed here to initialize combined element properties
9473   InitElementPropertiesEngine(level.game_version);
9474
9475   element_info[element].change =
9476     &element_info[element].change_page[current_change_page];
9477
9478   custom_element = element_info[element];
9479   custom_element_change = *element_info[element].change;
9480
9481   // needed to initially set selectbox options for special action options
9482   setSelectboxSpecialActionOptions();
9483
9484   // needed to initially set selectbox value variables to reliable defaults
9485   for (i = 0; i < ED_NUM_SELECTBOX; i++)
9486     setSelectboxValue(i, *selectbox_info[i].value);
9487
9488   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9489     custom_element_properties[i] = HAS_PROPERTY(element, i);
9490
9491   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9492     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
9493
9494   // ---------- element settings: configure (custom elements) -----------------
9495
9496   // set accessible layer selectbox help value
9497   custom_element.access_type =
9498     (IS_WALKABLE(element) ? EP_WALKABLE :
9499      IS_PASSABLE(element) ? EP_PASSABLE :
9500      custom_element.access_type);
9501   custom_element.access_layer =
9502     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
9503      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
9504      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
9505      custom_element.access_layer);
9506   custom_element.access_protected =
9507     (IS_PROTECTED(element) ? 1 : 0);
9508   custom_element_properties[EP_ACCESSIBLE] =
9509     (IS_ACCESSIBLE_OVER(element) ||
9510      IS_ACCESSIBLE_INSIDE(element) ||
9511      IS_ACCESSIBLE_UNDER(element));
9512
9513   // set walk-to-object action selectbox help value
9514   custom_element.walk_to_action =
9515     (IS_DIGGABLE(element) ? EP_DIGGABLE :
9516      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
9517      IS_DROPPABLE(element) ? EP_DROPPABLE :
9518      IS_THROWABLE(element) ? EP_THROWABLE :
9519      IS_PUSHABLE(element) ? EP_PUSHABLE :
9520      custom_element.walk_to_action);
9521   custom_element_properties[EP_WALK_TO_OBJECT] =
9522     (IS_DIGGABLE(element) ||
9523      IS_COLLECTIBLE_ONLY(element) ||
9524      IS_DROPPABLE(element) ||
9525      IS_THROWABLE(element) ||
9526      IS_PUSHABLE(element));
9527
9528   // set smash targets selectbox help value
9529   custom_element.smash_targets =
9530     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
9531      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
9532      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
9533      custom_element.smash_targets);
9534   custom_element_properties[EP_CAN_SMASH] =
9535     (CAN_SMASH_EVERYTHING(element) ||
9536      CAN_SMASH_ENEMIES(element) ||
9537      CAN_SMASH_PLAYER(element));
9538
9539   // set deadliness selectbox help value
9540   custom_element.deadliness =
9541     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
9542      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
9543      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
9544      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
9545      custom_element.deadliness);
9546   custom_element_properties[EP_DEADLY] =
9547     (DONT_TOUCH(element) ||
9548      DONT_GET_HIT_BY(element) ||
9549      DONT_COLLIDE_WITH(element) ||
9550      DONT_RUN_INTO(element));
9551
9552   // ---------- element settings: advanced (custom elements) ------------------
9553
9554   // set "change by direct action" selectbox help value
9555   custom_element_change.direct_action =
9556     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
9557      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
9558      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
9559      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
9560      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
9561      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
9562      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
9563      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
9564      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
9565      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
9566      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
9567      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
9568      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
9569      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
9570      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
9571      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
9572      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
9573      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
9574      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
9575      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
9576      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
9577      custom_element_change.direct_action);
9578
9579   // set "change by other element action" selectbox help value
9580   custom_element_change.other_action =
9581     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
9582      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
9583      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
9584      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
9585      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
9586      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
9587      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
9588      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
9589      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
9590      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
9591      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
9592      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
9593      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
9594      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
9595      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
9596      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
9597      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
9598      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
9599      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
9600      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
9601      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
9602      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
9603      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
9604      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
9605      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
9606      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
9607      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
9608      custom_element_change.other_action);
9609 }
9610
9611 static void CopyGroupElementPropertiesToEditor(int element)
9612 {
9613   group_element_info = *element_info[element].group;
9614   custom_element = element_info[element];       // needed for description
9615 }
9616
9617 static void CopyEmptyElementPropertiesToEditor(int element)
9618 {
9619   custom_element = element_info[element];
9620 }
9621
9622 static void CopyClassicElementPropertiesToEditor(int element)
9623 {
9624   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9625     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
9626       getMoveIntoAcidProperty(&level, element);
9627
9628   if (MAYBE_DONT_COLLIDE_WITH(element))
9629     custom_element_properties[EP_DONT_COLLIDE_WITH] =
9630       getDontCollideWithProperty(&level, element);
9631 }
9632
9633 static void CopyElementPropertiesToEditor(int element)
9634 {
9635   if (IS_CUSTOM_ELEMENT(element))
9636     CopyCustomElementPropertiesToEditor(element);
9637   else if (IS_GROUP_ELEMENT(element))
9638     CopyGroupElementPropertiesToEditor(element);
9639   else if (IS_EMPTY_ELEMENT(element))
9640     CopyEmptyElementPropertiesToEditor(element);
9641   else
9642     CopyClassicElementPropertiesToEditor(element);
9643 }
9644
9645 static boolean AskToCopyAndModifyLevelTemplate(void)
9646 {
9647   if (Request("Copy and modify settings from level template?", REQ_ASK))
9648   {
9649     level.use_custom_template = FALSE;
9650
9651     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
9652                  GDI_CHECKED, FALSE, GDI_END);
9653     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
9654                  GDI_CHECKED, FALSE, GDI_END);
9655
9656     return TRUE;
9657   }
9658   else
9659   {
9660     LoadLevelTemplate(-1);      // this resets all element modifications ...
9661
9662     DrawEditModeWindow();       // ... and copies them to 'custom_element'
9663
9664     return FALSE;
9665   }
9666 }
9667
9668 static void CopyCustomElementPropertiesToGame(int element)
9669 {
9670   int i;
9671   int access_type_and_layer;
9672
9673   // mark that this custom element has been modified
9674   custom_element.modified_settings = TRUE;
9675   level.changed = TRUE;
9676
9677   if (level.use_custom_template)
9678     AskToCopyAndModifyLevelTemplate();
9679
9680   element_info[element] = custom_element;
9681   *element_info[element].change = custom_element_change;
9682
9683   // ---------- element settings: configure (custom elements) -----------------
9684
9685   // set accessible property from checkbox and selectbox
9686   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
9687   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
9688   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
9689   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
9690   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
9691   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
9692   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
9693                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
9694                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
9695   custom_element_properties[access_type_and_layer] =
9696     custom_element_properties[EP_ACCESSIBLE];
9697   custom_element_properties[EP_PROTECTED] =
9698     (custom_element.access_protected != 0 &&
9699      custom_element_properties[EP_ACCESSIBLE]);
9700
9701   // set walk-to-object property from checkbox and selectbox
9702   custom_element_properties[EP_DIGGABLE] = FALSE;
9703   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
9704   custom_element_properties[EP_DROPPABLE] = FALSE;
9705   custom_element_properties[EP_THROWABLE] = FALSE;
9706   custom_element_properties[EP_PUSHABLE] = FALSE;
9707   custom_element_properties[custom_element.walk_to_action] =
9708     custom_element_properties[EP_WALK_TO_OBJECT];
9709
9710   // set smash property from checkbox and selectbox
9711   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
9712   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
9713   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
9714   custom_element_properties[custom_element.smash_targets] =
9715     custom_element_properties[EP_CAN_SMASH];
9716
9717   // set deadliness property from checkbox and selectbox
9718   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
9719   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
9720   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
9721   custom_element_properties[EP_DONT_TOUCH] = FALSE;
9722   custom_element_properties[custom_element.deadliness] =
9723     custom_element_properties[EP_DEADLY];
9724
9725   // ---------- element settings: advanced (custom elements) ------------------
9726
9727   // set player change event from checkbox and selectbox
9728   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
9729   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
9730   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
9731   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
9732   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
9733   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
9734   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
9735   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
9736   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
9737   custom_element_change_events[CE_SWITCHED] = FALSE;
9738   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
9739   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
9740   custom_element_change_events[CE_BLOCKED] = FALSE;
9741   custom_element_change_events[CE_IMPACT] = FALSE;
9742   custom_element_change_events[CE_SMASHED] = FALSE;
9743   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
9744   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
9745   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
9746   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
9747   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
9748   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
9749   custom_element_change_events[custom_element_change.direct_action] =
9750     custom_element_change_events[CE_BY_DIRECT_ACTION];
9751
9752   // set other element action change event from checkbox and selectbox
9753   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
9754   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
9755   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
9756   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
9757   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
9758   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
9759   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
9760   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
9761   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
9762   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
9763   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
9764   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
9765   custom_element_change_events[CE_TOUCHING_X] = FALSE;
9766   custom_element_change_events[CE_HITTING_X] = FALSE;
9767   custom_element_change_events[CE_DIGGING_X] = FALSE;
9768   custom_element_change_events[CE_HIT_BY_X] = FALSE;
9769   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
9770   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
9771   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
9772   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
9773   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
9774   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
9775   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
9776   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
9777   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
9778   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
9779   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
9780   custom_element_change_events[custom_element_change.other_action] =
9781     custom_element_change_events[CE_BY_OTHER_ACTION];
9782
9783   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9784     SET_PROPERTY(element, i, custom_element_properties[i]);
9785
9786   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9787     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
9788
9789   // copy change events also to special level editor variable
9790   custom_element = element_info[element];
9791   custom_element_change = *element_info[element].change;
9792
9793   // needed here to restore runtime value "element_info[element].gfx_element"
9794   InitElementPropertiesGfxElement();
9795 }
9796
9797 static void CopyGroupElementPropertiesToGame(int element)
9798 {
9799   // mark that this group element has been modified
9800   custom_element.modified_settings = TRUE;
9801   level.changed = TRUE;
9802
9803   if (level.use_custom_template)
9804     AskToCopyAndModifyLevelTemplate();
9805
9806   element_info[element] = custom_element;
9807   *element_info[element].group = group_element_info;
9808
9809   // needed here to restore runtime value "element_info[element].gfx_element"
9810   InitElementPropertiesGfxElement();
9811 }
9812
9813 static void CopyEmptyElementPropertiesToGame(int element)
9814 {
9815   // mark that this empty element has been modified
9816   custom_element.modified_settings = TRUE;
9817   level.changed = TRUE;
9818
9819   if (level.use_custom_template)
9820     AskToCopyAndModifyLevelTemplate();
9821
9822   element_info[element] = custom_element;
9823
9824   // needed here to restore runtime value "element_info[element].gfx_element"
9825   InitElementPropertiesGfxElement();
9826 }
9827
9828 static void CopyClassicElementPropertiesToGame(int element)
9829 {
9830   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9831     setMoveIntoAcidProperty(&level, element,
9832                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
9833
9834   if (MAYBE_DONT_COLLIDE_WITH(element))
9835     setDontCollideWithProperty(&level, element,
9836                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
9837 }
9838
9839 static void CopyElementPropertiesToGame(int element)
9840 {
9841   if (IS_CUSTOM_ELEMENT(element))
9842     CopyCustomElementPropertiesToGame(element);
9843   else if (IS_GROUP_ELEMENT(element))
9844     CopyGroupElementPropertiesToGame(element);
9845   else if (IS_EMPTY_ELEMENT(element))
9846     CopyEmptyElementPropertiesToGame(element);
9847   else
9848     CopyClassicElementPropertiesToGame(element);
9849 }
9850
9851 #if DEBUG
9852 static void CheckElementDescriptions(void)
9853 {
9854   int i;
9855
9856   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9857     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
9858       Warn("no element description file for element '%s'", EL_NAME(i));
9859 }
9860 #endif
9861
9862 static int getMaxEdFieldX(boolean has_scrollbar)
9863 {
9864   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
9865   int sxsize = SXSIZE - scrollbar_width;
9866   int max_ed_fieldx = sxsize / ed_tilesize;
9867
9868   return max_ed_fieldx;
9869 }
9870
9871 static int getMaxEdFieldY(boolean has_scrollbar)
9872 {
9873   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
9874                          INFOTEXT_YSIZE_FULL : 0);
9875   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
9876   int sysize = SYSIZE - scrollbar_height - infotext_height;
9877   int max_ed_fieldy = sysize / ed_tilesize;
9878
9879   return max_ed_fieldy;
9880 }
9881
9882 static void InitZoomLevelSettings(int zoom_tilesize)
9883 {
9884   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
9885
9886   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
9887   {
9888     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
9889     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
9890
9891     // make sure that tile size is always a power of 2
9892     ed_tilesize = (1 << log_2(ed_tilesize));
9893
9894     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9895     {
9896       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
9897       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
9898     }
9899   }
9900
9901   last_game_engine_type = level.game_engine_type;
9902
9903   // limit zoom tilesize by upper and lower bound
9904   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
9905
9906   // store zoom tilesize in auto setup file only if it was manually changed
9907   if (zoom_tilesize != -1)
9908     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
9909
9910   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
9911   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
9912 }
9913
9914 static void InitDrawingElements(void)
9915 {
9916   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
9917
9918   if (level.game_engine_type == game_engine_type_last)
9919     return;
9920
9921   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
9922   {
9923     new_element1 = EL_BD_WALL;
9924     new_element2 = EL_EMPTY;
9925     new_element3 = EL_BD_SAND;
9926   }
9927   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
9928   {
9929     new_element1 = EL_SP_CHIP_SINGLE;
9930     new_element2 = EL_EMPTY;
9931     new_element3 = EL_SP_BASE;
9932   }
9933   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9934   {
9935     new_element1 = EL_MM_MIRROR_START;
9936     new_element2 = EL_EMPTY;
9937     new_element3 = EL_MM_WOODEN_WALL;
9938   }
9939   else
9940   {
9941     new_element1 = EL_WALL;
9942     new_element2 = EL_EMPTY;
9943     new_element3 = EL_SAND;
9944   }
9945
9946   game_engine_type_last = level.game_engine_type;
9947 }
9948
9949 static void InitLevelSetInfo(void)
9950 {
9951   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
9952            "%s", leveldir_current->name);
9953   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
9954            "%s", leveldir_current->author);
9955
9956   levelset_num_levels = leveldir_current->levels;
9957
9958   levelset_use_levelset_artwork = FALSE;
9959   levelset_copy_level_template = FALSE;
9960
9961   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
9962 }
9963
9964 static void ChangeEditorToLevelSet(char *levelset_subdir)
9965 {
9966   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
9967
9968   // the previous level set might have used custom artwork
9969   ReloadCustomArtwork(0);
9970
9971   LoadLevelSetup_SeriesInfo();
9972
9973   SaveLevelSetup_LastSeries();
9974   SaveLevelSetup_SeriesInfo();
9975
9976   TapeErase();
9977
9978   LoadLevel(level_nr);
9979   LoadScore(level_nr);
9980
9981   DrawLevelEd();
9982 }
9983
9984 static boolean useEditorDoorAnimation(void)
9985 {
9986   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
9987   boolean door_1_viewport_unchanged =
9988     (vp_door_1->x      == DX     &&
9989      vp_door_1->y      == DY     &&
9990      vp_door_1->width  == DXSIZE &&
9991      vp_door_1->height == DYSIZE);
9992   boolean door_1_contains_toolbox =
9993     (EX >= DX &&
9994      EY >= DY &&
9995      EX + EXSIZE <= DX + DXSIZE &&
9996      EY + EYSIZE <= DY + DYSIZE);
9997
9998   return (door_1_viewport_unchanged && door_1_contains_toolbox);
9999 }
10000
10001 static void DrawEditorDoorBackground(int graphic, int x, int y,
10002                                      int width, int height)
10003 {
10004   struct GraphicInfo *g = &graphic_info[graphic];
10005
10006   if (g->bitmap != NULL)
10007     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
10008                MIN(width, g->width), MIN(height, g->height), x, y);
10009   else
10010     ClearRectangle(drawto, x, y, width, height);
10011 }
10012
10013 static void DrawEditorDoorContent(void)
10014 {
10015   // needed for gadgets drawn on background (like palette scrollbar)
10016   SetDoorBackgroundImage(IMG_UNDEFINED);
10017
10018   // copy default editor door content to main double buffer
10019   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
10020
10021   // draw bigger door
10022   DrawSpecialEditorDoor();
10023
10024   // draw new control window
10025   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
10026
10027   // draw all toolbox gadgets to editor doors
10028   MapControlButtons();
10029
10030   // when returning from test game to properties page, redraw toolbox gadgets
10031   if (edit_mode == ED_MODE_PROPERTIES)
10032   {
10033     UnmapLevelEditorToolboxDrawingGadgets();
10034     UnmapLevelEditorToolboxCustomGadgets();
10035
10036     MapLevelEditorToolboxCustomGadgetsIfNeeded();
10037   }
10038
10039   // draw all palette gadgets to editor doors
10040   ModifyEditorElementList();
10041   RedrawDrawingElements();
10042
10043   // copy actual editor door content to door double buffer for OpenDoor()
10044   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
10045 }
10046
10047 void DrawLevelEd(void)
10048 {
10049   int fade_mask = REDRAW_FIELD;
10050
10051   FadeSoundsAndMusic();
10052
10053   if (CheckFadeAll())
10054     fade_mask = REDRAW_ALL;
10055
10056   FadeOut(fade_mask);
10057
10058   // needed if different viewport properties defined for editor
10059   ChangeViewportPropertiesIfNeeded();
10060
10061   ClearField();
10062
10063   InitZoomLevelSettings(-1);
10064   InitDrawingElements();
10065   InitLevelSetInfo();
10066
10067 #if DEBUG
10068   CheckElementDescriptions();
10069 #endif
10070
10071   if (level_editor_test_game)
10072   {
10073     CopyPlayfield(level.field, Tile);
10074     CopyPlayfield(TileBackup, level.field);
10075
10076     level_editor_test_game = FALSE;
10077   }
10078   else
10079   {
10080     edit_mode = ED_MODE_DRAWING;
10081     edit_mode_levelconfig = ED_MODE_LEVELCONFIG_LEVEL;
10082     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
10083
10084     ResetUndoBuffer();
10085
10086     level_xpos = -1;
10087     level_ypos = -1;
10088   }
10089
10090   // redraw_mask |= REDRAW_ALL;
10091
10092   FreeLevelEditorGadgets();
10093   CreateLevelEditorGadgets();
10094
10095   ReinitializeElementList();            // update dynamic level element list
10096   ReinitializeElementListButtons();     // custom element may look different
10097
10098   InitElementPropertiesGfxElement();
10099
10100   UnmapAllGadgets();
10101
10102   DrawEditModeWindow_PlayfieldOnly();
10103
10104   DrawMaskedBorder(fade_mask);
10105
10106   // use door animation if door 1 viewport is unchanged and contains toolbox
10107   if (useEditorDoorAnimation())
10108   {
10109     FadeIn(fade_mask);
10110
10111     DrawEditorDoorContent();
10112
10113     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
10114   }
10115   else
10116   {
10117     DrawEditorDoorContent();
10118
10119     FadeIn(fade_mask);
10120   }
10121
10122   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
10123 }
10124
10125 static void AdjustDrawingAreaGadgets(void)
10126 {
10127   int ed_xsize = lev_fieldx + 2;
10128   int ed_ysize = lev_fieldy + 2;
10129   int max_ed_fieldx = MAX_ED_FIELDX;
10130   int max_ed_fieldy = MAX_ED_FIELDY;
10131   boolean horizontal_scrollbar_needed;
10132   boolean vertical_scrollbar_needed;
10133   int x, y, width, height;
10134
10135   if (suppressBorderElement())
10136   {
10137     ed_xsize = lev_fieldx;
10138     ed_ysize = lev_fieldy;
10139   }
10140
10141   // check if we need any scrollbars
10142   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
10143   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
10144
10145   // check if we have a smaller editor field because of scrollbars
10146   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
10147   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
10148
10149   // check again if we now need more scrollbars because of less space
10150   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
10151   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
10152
10153   // check if editor field gets even smaller after adding new scrollbars
10154   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
10155   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
10156
10157   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
10158   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
10159
10160   x = SX + ed_fieldx * ed_tilesize;
10161   y = SY + ed_fieldy * ed_tilesize;
10162
10163   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
10164   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
10165
10166   // adjust drawing area gadget
10167   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
10168                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
10169                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
10170                GDI_END);
10171
10172   // adjust horizontal scrollbar gadgets
10173   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
10174                GDI_Y, y,
10175                GDI_END);
10176   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
10177                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
10178                GDI_Y, y,
10179                GDI_END);
10180   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
10181                GDI_Y, y,
10182                GDI_WIDTH, width,
10183                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
10184                GDI_END);
10185
10186   // adjust vertical scrollbar gadgets
10187   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
10188                GDI_X, x,
10189                GDI_END);
10190   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
10191                GDI_X, x,
10192                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
10193                GDI_END);
10194   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
10195                GDI_X, x,
10196                GDI_HEIGHT, height,
10197                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
10198                GDI_END);
10199 }
10200
10201 static void AdjustLevelScrollPosition(void)
10202 {
10203   if (level_xpos < -1)
10204     level_xpos = -1;
10205   if (level_xpos > lev_fieldx - ed_fieldx + 1)
10206     level_xpos = lev_fieldx - ed_fieldx + 1;
10207   if (lev_fieldx < ed_fieldx - 2)
10208     level_xpos = -1;
10209
10210   if (level_ypos < -1)
10211     level_ypos = -1;
10212   if (level_ypos > lev_fieldy - ed_fieldy + 1)
10213     level_ypos = lev_fieldy - ed_fieldy + 1;
10214   if (lev_fieldy < ed_fieldy - 2)
10215     level_ypos = -1;
10216
10217   if (suppressBorderElement())
10218   {
10219     level_xpos = 0;
10220     level_ypos = 0;
10221   }
10222 }
10223
10224 static void AdjustEditorScrollbar(int id)
10225 {
10226   struct GadgetInfo *gi = level_editor_gadget[id];
10227   int items_max, items_visible, item_position;
10228
10229   if (id == GADGET_ID_SCROLL_HORIZONTAL)
10230   {
10231     items_max = MAX(lev_fieldx + 2, ed_fieldx);
10232     items_visible = ed_fieldx;
10233     item_position = level_xpos + 1;
10234   }
10235   else
10236   {
10237     items_max = MAX(lev_fieldy + 2, ed_fieldy);
10238     items_visible = ed_fieldy;
10239     item_position = level_ypos + 1;
10240   }
10241
10242   if (item_position > items_max - items_visible)
10243     item_position = items_max - items_visible;
10244
10245   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
10246                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
10247 }
10248
10249 static void AdjustElementListScrollbar(void)
10250 {
10251   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
10252   int items_max, items_visible, item_position;
10253
10254   // correct position of element list scrollbar
10255   if (element_shift < 0)
10256     element_shift = 0;
10257   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
10258     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
10259
10260   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
10261   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
10262   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
10263
10264   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
10265                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
10266                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
10267 }
10268
10269 static void ModifyEditorCounterValue(int counter_id, int new_value)
10270 {
10271   int *counter_value = counterbutton_info[counter_id].value;
10272   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
10273   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10274
10275   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
10276
10277   if (counter_value != NULL)
10278     *counter_value = gi->textinput.number_value;
10279 }
10280
10281 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
10282 {
10283   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
10284   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10285
10286   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
10287
10288   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
10289       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
10290   {
10291     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
10292     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
10293
10294     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
10295     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
10296                  GDI_END);
10297   }
10298 }
10299
10300 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
10301 {
10302   int gadget_id = selectbox_info[selectbox_id].gadget_id;
10303   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10304   int new_index_value = setSelectboxValue(selectbox_id, new_value);
10305
10306   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
10307 }
10308
10309 static void ModifyEditorSelectboxOptions(int selectbox_id,
10310                                          struct ValueTextInfo *options)
10311 {
10312   int gadget_id = selectbox_info[selectbox_id].gadget_id;
10313   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10314
10315   selectbox_info[selectbox_id].options = options;
10316
10317   // set index to zero -- list may be shorter now (correct later, if needed)
10318   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
10319                GDI_SELECTBOX_OPTIONS, options, GDI_END);
10320 }
10321
10322 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
10323 {
10324   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
10325   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10326
10327   drawingarea_info[drawingarea_id].area_xsize = xsize;
10328   drawingarea_info[drawingarea_id].area_ysize = ysize;
10329
10330   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
10331 }
10332
10333 static void ModifyEditorElementList(void)
10334 {
10335   int i;
10336
10337   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
10338     return;
10339
10340   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
10341   {
10342     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
10343     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10344     struct GadgetDesign *gd = &gi->deco.design;
10345     int element = editor_elements[element_shift + i];
10346     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
10347
10348     UnmapGadget(gi);
10349
10350     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
10351
10352     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
10353
10354     MapGadget(gi);
10355   }
10356 }
10357
10358 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
10359 {
10360   int graphic = el2edimg(element);
10361   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
10362
10363   if (pos->x == -1 &&
10364       pos->y == -1)
10365     return;
10366
10367   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
10368 }
10369
10370 static void ModifyDrawingElementButton(int element, int id)
10371 {
10372   struct GadgetInfo *gi = level_editor_gadget[id];
10373   Bitmap *deco_bitmap;
10374   int deco_x, deco_y;
10375   int tile_size = gi->deco.width;
10376
10377   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
10378
10379   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
10380 }
10381
10382 static void PickDrawingElement(int button, int element)
10383 {
10384   struct
10385   {
10386     int *new_element;
10387     struct XYTileSize *pos;
10388     int id;
10389   } de, drawing_elements[] =
10390   {
10391     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
10392     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
10393     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
10394   };
10395
10396   if (button < 1 || button > 3)
10397     return;
10398
10399   if (IS_MM_WALL(element))
10400     element = map_mm_wall_element(element);
10401
10402   de = drawing_elements[button - 1];
10403
10404   *de.new_element = element;    // update global drawing element variable
10405
10406   DrawDrawingElementGraphic(element, de.pos);
10407   ModifyDrawingElementButton(element, de.id);
10408
10409   redraw_mask |= REDRAW_DOOR_1;
10410 }
10411
10412 static void RedrawDrawingElements(void)
10413 {
10414   PickDrawingElement(1, new_element1);
10415   PickDrawingElement(2, new_element2);
10416   PickDrawingElement(3, new_element3);
10417 }
10418
10419 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
10420 {
10421   stick_element_properties_window = FALSE;
10422
10423   SetMainBackgroundImage(IMG_UNDEFINED);
10424   ClearField();
10425
10426   UnmapLevelEditorFieldGadgets();
10427
10428   AdjustDrawingAreaGadgets();
10429   AdjustLevelScrollPosition();
10430   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
10431   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
10432
10433   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10434
10435   MapMainDrawingArea();
10436
10437   if (remap_toolbox_gadgets)
10438   {
10439     UnmapLevelEditorToolboxCustomGadgets();
10440     MapLevelEditorToolboxDrawingGadgets();
10441   }
10442 }
10443
10444 static void DrawDrawingWindow(void)
10445 {
10446   DrawDrawingWindowExt(TRUE);
10447 }
10448
10449 static int getTabulatorBarWidth(void)
10450 {
10451   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10452   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
10453
10454   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
10455 }
10456
10457 static int getTabulatorBarHeight(void)
10458 {
10459   return ED_TAB_BAR_HEIGHT;
10460 }
10461
10462 static Pixel getTabulatorBarColor(void)
10463 {
10464   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10465   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10466   int gd_x = gd->x + gd_gi1->border.width / 2;
10467   int gd_y = gd->y + gd_gi1->height - 1;
10468
10469   return GetPixel(gd->bitmap, gd_x, gd_y);
10470 }
10471
10472 static void DrawLevelConfigTabulatorGadgets(void)
10473 {
10474   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10475   Pixel tab_color = getTabulatorBarColor();
10476   int id_first = ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL;
10477   int id_last  = ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR;
10478   int i;
10479
10480   // draw additional "engine" tabulator when using native BD engine
10481   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
10482     id_last = ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE;
10483
10484   for (i = id_first; i <= id_last; i++)
10485   {
10486     int gadget_id = textbutton_info[i].gadget_id;
10487     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10488     boolean active = (i != edit_mode_levelconfig);
10489
10490     // draw background line below tabulator button
10491     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10492
10493     // draw solid line below inactive tabulator buttons
10494     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10495       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10496                     ED_GADGET_TINY_DISTANCE, tab_color);
10497
10498     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10499     MapTextbuttonGadget(i);
10500   }
10501
10502   // draw little border line below tabulator buttons
10503   if (tab_color != BLACK_PIXEL)                 // black => transparent
10504     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10505                   ED_GADGET_TINY_DISTANCE,
10506                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10507 }
10508
10509 static void DrawPropertiesTabulatorGadgets(void)
10510 {
10511   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10512   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10513   int gd_x = gd->x + gd_gi1->border.width / 2;
10514   int gd_y = gd->y + gd_gi1->height - 1;
10515   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10516   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
10517   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
10518   int i;
10519
10520   // draw two config tabulators for player elements
10521   if (IS_PLAYER_ELEMENT(properties_element))
10522     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
10523
10524   // draw two config and one "change" tabulator for custom elements
10525   if (IS_CUSTOM_ELEMENT(properties_element))
10526     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
10527
10528   for (i = id_first; i <= id_last; i++)
10529   {
10530     int gadget_id = textbutton_info[i].gadget_id;
10531     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10532     boolean active = (i != edit_mode_properties);
10533
10534     // use "config 1" and "config 2" instead of "config" for players and CEs
10535     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
10536         (IS_PLAYER_ELEMENT(properties_element) ||
10537          IS_CUSTOM_ELEMENT(properties_element)))
10538       continue;
10539
10540     // draw background line below tabulator button
10541     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10542
10543     // draw solid line below inactive tabulator buttons
10544     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10545       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10546                     ED_GADGET_TINY_DISTANCE, tab_color);
10547
10548     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10549     MapTextbuttonGadget(i);
10550   }
10551
10552   // draw little border line below tabulator buttons
10553   if (tab_color != BLACK_PIXEL)                 // black => transparent
10554     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10555                   ED_GADGET_TINY_DISTANCE,
10556                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10557 }
10558
10559 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
10560 {
10561   DrawText(SX + xpos, SY + ypos, text, font_nr);
10562 }
10563
10564 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
10565                                            int xpos, int ypos)
10566 {
10567   int font_width = getFontWidth(font_nr);
10568   int font_height = getFontHeight(font_nr);
10569   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
10570   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
10571
10572   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
10573                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
10574                       TRUE, FALSE, FALSE);
10575 }
10576
10577 static void DrawLevelConfigLevel(void)
10578 {
10579   int i;
10580
10581   // draw counter gadgets
10582   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
10583     MapCounterButtons(i);
10584
10585   // draw checkbutton gadgets
10586   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
10587     MapCheckbuttonGadget(i);
10588
10589   // draw selectbox gadgets
10590   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
10591     MapSelectboxGadget(i);
10592
10593   // draw text input gadgets
10594   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
10595     MapTextInputGadget(i);
10596 }
10597
10598 static char *getLevelSubdirFromSaveMode(int save_mode)
10599 {
10600   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
10601     return getNewUserLevelSubdir();
10602
10603   return leveldir_current->subdir;
10604 }
10605
10606 static void DrawLevelConfigLevelSet_DirectoryInfo(void)
10607 {
10608   char *directory_text = "Level set directory:";
10609   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
10610   int font1_nr = FONT_TEXT_1;
10611   int font2_nr = FONT_TEXT_2;
10612   int font1_height = getFontHeight(font1_nr);
10613   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
10614   int x = ED_LEVEL_SETTINGS_X(0);
10615   int y = ED_LEVEL_SETTINGS_Y(6);
10616
10617   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
10618   PrintInfoText(directory_name, font2_nr, x, y);
10619 }
10620
10621 static void DrawLevelConfigLevelSet(void)
10622 {
10623   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
10624   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
10625   int i;
10626
10627   // draw counter gadgets
10628   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
10629     MapCounterButtons(i);
10630
10631   // draw checkbutton gadgets
10632   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
10633   {
10634     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
10635         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
10636         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
10637       continue;
10638
10639     MapCheckbuttonGadget(i);
10640   }
10641
10642   // draw selectbox gadgets
10643   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
10644     MapSelectboxGadget(i);
10645
10646   // draw text input gadgets
10647   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
10648     MapTextInputGadget(i);
10649
10650   // draw textbutton gadgets
10651   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
10652
10653   // draw info text
10654   DrawLevelConfigLevelSet_DirectoryInfo();
10655 }
10656
10657 static void DrawLevelConfigEditor(void)
10658 {
10659   int i;
10660
10661   // draw counter gadgets
10662   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
10663     MapCounterButtons(i);
10664
10665   // draw checkbutton gadgets
10666   for (i = ED_CHECKBUTTON_ID_EDITOR_FIRST; i <= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
10667     MapCheckbuttonGadget(i);
10668
10669   // draw radiobutton gadgets
10670   for (i = ED_RADIOBUTTON_ID_EDITOR_FIRST; i <= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
10671     MapRadiobuttonGadget(i);
10672
10673   // draw drawing area
10674   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
10675
10676   // draw textbutton gadgets
10677   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
10678 }
10679
10680 static void DrawLevelConfigEngine(void)
10681 {
10682   int i;
10683
10684   // draw counter gadgets
10685   if (level.bd_scheduling_type == GD_SCHEDULING_MILLISECONDS)
10686   {
10687     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_MS);
10688     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES);
10689   }
10690   else
10691   {
10692     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_C64);
10693     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS);
10694   }
10695
10696   // draw checkbutton gadgets
10697   for (i = ED_CHECKBUTTON_ID_ENGINE_FIRST; i <= ED_CHECKBUTTON_ID_ENGINE_LAST; i++)
10698     MapCheckbuttonGadget(i);
10699
10700   // draw selectbox gadgets
10701   for (i = ED_SELECTBOX_ID_ENGINE_FIRST; i <= ED_SELECTBOX_ID_ENGINE_LAST; i++)
10702     MapSelectboxGadget(i);
10703 }
10704
10705 static void DrawLevelConfigWindow(void)
10706 {
10707   char *text = "Global Settings";
10708   int font_nr = FONT_TITLE_1;
10709   struct MenuPosInfo *pos = &editor.settings.headline;
10710   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
10711   int sy = SY + pos->y;
10712
10713   stick_element_properties_window = FALSE;
10714
10715   SetAutomaticNumberOfGemsNeeded();
10716
10717   UnmapLevelEditorFieldGadgets();
10718
10719   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10720   ClearField();
10721
10722   DrawText(sx, sy, text, font_nr);
10723
10724   DrawLevelConfigTabulatorGadgets();
10725
10726   if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVEL)
10727     DrawLevelConfigLevel();
10728   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVELSET)
10729     DrawLevelConfigLevelSet();
10730   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_EDITOR)
10731     DrawLevelConfigEditor();
10732   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_ENGINE)
10733     DrawLevelConfigEngine();
10734 }
10735
10736 static void DrawCustomContentArea(void)
10737 {
10738   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
10739   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10740   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
10741   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
10742   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
10743   int xoffset = ED_GADGET_SPACE_DISTANCE;
10744
10745   // add distance for potential left text (without drawing area border)
10746   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
10747
10748   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10749
10750   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
10751 }
10752
10753 static void DrawCustomChangeContentArea(void)
10754 {
10755   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
10756   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10757   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
10758   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
10759   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
10760   int xoffset = ED_GADGET_SPACE_DISTANCE;
10761
10762   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10763
10764   MapDrawingArea(id);
10765 }
10766
10767 static void RemoveElementContentArea(int id, int font_height)
10768 {
10769   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10770
10771   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
10772                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
10773                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10774                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
10775                  ED_GADGET_TEXT_DISTANCE + font_height);
10776 }
10777
10778 static void DrawYamYamContentAreas(void)
10779 {
10780   int font_nr = FONT_TEXT_1;
10781   int font_height = getFontHeight(font_nr);
10782   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10783   int yoffset = (tilesize - font_height) / 2;
10784   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
10785   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
10786   int i;
10787
10788   // display counter to choose number of element content areas
10789   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
10790
10791   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10792   {
10793     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
10794
10795     if (i < level.num_yamyam_contents)
10796     {
10797       MapDrawingArea(id);
10798     }
10799     else
10800     {
10801       UnmapDrawingArea(id);
10802
10803       // delete content areas in case of reducing number of them
10804       RemoveElementContentArea(id, font_height);
10805     }
10806   }
10807
10808   DrawText(x, y + 0 * tilesize, "content", font_nr);
10809   DrawText(x, y + 1 * tilesize, "when",    font_nr);
10810   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
10811 }
10812
10813 static void DrawMagicBallContentAreas(void)
10814 {
10815   int font_nr = FONT_TEXT_1;
10816   int font_height = getFontHeight(font_nr);
10817   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10818   int yoffset = (tilesize - font_height) / 2;
10819   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
10820   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
10821   int i;
10822
10823   // display counter to choose number of element content areas
10824   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
10825
10826   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10827   {
10828     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
10829
10830     if (i < level.num_ball_contents)
10831     {
10832       MapDrawingArea(id);
10833     }
10834     else
10835     {
10836       UnmapDrawingArea(id);
10837
10838       // delete content areas in case of reducing number of them
10839       RemoveElementContentArea(id, font_height);
10840     }
10841   }
10842
10843   DrawText(x, y + 0 * tilesize, "generated", font_nr);
10844   DrawText(x, y + 1 * tilesize, "when",      font_nr);
10845   DrawText(x, y + 2 * tilesize, "active",    font_nr);
10846 }
10847
10848 static void DrawAndroidElementArea(void)
10849 {
10850   int id = ED_DRAWING_ID_ANDROID_CONTENT;
10851   int num_elements = level.num_android_clone_elements;
10852   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10853   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10854   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10855   int xsize = MAX_ANDROID_ELEMENTS;
10856   int ysize = 1;
10857
10858   // display counter to choose number of element areas
10859   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
10860
10861   if (drawingarea_info[id].text_left != NULL)
10862     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10863
10864   UnmapDrawingArea(id);
10865
10866   ModifyEditorDrawingArea(id, num_elements, 1);
10867
10868   // delete content areas in case of reducing number of them
10869   DrawBackground(sx, sy,
10870                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10871                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10872
10873   MapDrawingArea(id);
10874 }
10875
10876 static void DrawGroupElementArea(void)
10877 {
10878   int id = ED_DRAWING_ID_GROUP_CONTENT;
10879   int num_elements = group_element_info.num_elements;
10880   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10881   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10882   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10883   int xsize = MAX_ELEMENTS_IN_GROUP;
10884   int ysize = 1;
10885
10886   if (drawingarea_info[id].text_left != NULL)
10887     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10888
10889   UnmapDrawingArea(id);
10890
10891   ModifyEditorDrawingArea(id, num_elements, 1);
10892
10893   // delete content areas in case of reducing number of them
10894   DrawBackground(sx, sy,
10895                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10896                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10897
10898   MapDrawingArea(id);
10899 }
10900
10901 static void DrawPlayerInitialInventoryArea(int element)
10902 {
10903   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
10904   int player_nr = GET_PLAYER_NR(element);
10905   int num_elements = level.initial_inventory_size[player_nr];
10906   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10907   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10908   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10909   int xsize = MAX_INITIAL_INVENTORY_SIZE;
10910   int ysize = 1;
10911
10912   // determine horizontal position to the right of specified gadget
10913   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
10914     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
10915           ED_DRAWINGAREA_TEXT_DISTANCE);
10916
10917   // determine horizontal offset for leading text
10918   if (drawingarea_info[id].text_left != NULL)
10919     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10920
10921   UnmapDrawingArea(id);
10922
10923   ModifyEditorDrawingArea(id, num_elements, 1);
10924
10925   // delete content areas in case of reducing number of them
10926   DrawBackground(sx, sy,
10927                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10928                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10929
10930   MapDrawingArea(id);
10931 }
10932
10933 static void DrawMMBallContentArea(void)
10934 {
10935   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
10936   int num_elements = level.num_mm_ball_contents;
10937   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10938   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10939   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10940   int xsize = MAX_MM_BALL_CONTENTS;
10941   int ysize = 1;
10942
10943   if (drawingarea_info[id].text_left != NULL)
10944     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10945
10946   UnmapDrawingArea(id);
10947
10948   ModifyEditorDrawingArea(id, num_elements, 1);
10949
10950   // delete content areas in case of reducing number of them
10951   DrawBackground(sx, sy,
10952                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10953                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10954
10955   MapDrawingArea(id);
10956 }
10957
10958 static void DrawEnvelopeTextArea(int envelope_nr)
10959 {
10960   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
10961   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
10962
10963   UnmapGadget(gi);
10964
10965   DrawBackground(gi->x, gi->y,
10966                  gi->textarea.crop_width, gi->textarea.crop_height);
10967
10968   if (envelope_nr != -1)
10969     textarea_info[id].value = level.envelope[envelope_nr].text;
10970
10971   ModifyGadget(gi, GDI_AREA_SIZE,
10972                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
10973                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
10974                GDI_END);
10975
10976   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
10977 }
10978
10979 static void DrawPropertiesInfo(void)
10980 {
10981   static struct
10982   {
10983     int value;
10984     char *text;
10985   }
10986   properties[] =
10987   {
10988     // configurable properties
10989
10990     { EP_WALKABLE_OVER,         "- player can walk over it"             },
10991     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
10992     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
10993     { EP_PASSABLE_OVER,         "- player can pass over it"             },
10994     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
10995     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
10996     { EP_PROTECTED,             "- player is protected by it"           },
10997
10998     { EP_DIGGABLE,              "- can be digged away"                  },
10999     { EP_COLLECTIBLE,           "- can be collected"                    },
11000     { EP_DROPPABLE,             "- can be dropped after collecting"     },
11001     { EP_THROWABLE,             "- can be thrown after collecting"      },
11002     { EP_PUSHABLE,              "- can be pushed"                       },
11003
11004     { EP_CAN_FALL,              "- can fall"                            },
11005     { EP_CAN_MOVE,              "- can move"                            },
11006
11007     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
11008 #if 0
11009     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
11010 #endif
11011     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
11012
11013     { EP_SLIPPERY,              "- slippery for falling elements"       },
11014     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
11015
11016     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
11017     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
11018     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
11019     { EP_DONT_TOUCH,            "- deadly when touching"                },
11020
11021     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
11022
11023     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
11024     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
11025     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
11026
11027     { EP_CAN_CHANGE,            "- can change to other element"         },
11028
11029     // pre-defined properties
11030     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
11031     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
11032     { EP_SWITCHABLE,            "- can be switched"                     },
11033 #if 0
11034     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
11035 #endif
11036
11037     { -1,                       NULL                                    }
11038   };
11039   char *filename = getElementDescriptionFilename(properties_element);
11040   char *num_elements_text = "In this level: ";
11041   char *num_similar_text = "Similar tiles: ";
11042   char *properties_text = "Standard properties: ";
11043   char *description_text = "Description:";
11044   char *no_description_text = "No description available.";
11045   char *none_text = "None";
11046   float percentage;
11047   int num_elements_in_level = 0;
11048   int num_similar_in_level = 0;
11049   int num_hires_tiles_in_level = 0;
11050   int num_standard_properties = 0;
11051   int font1_nr = FONT_TEXT_1;
11052   int font2_nr = FONT_TEXT_2;
11053   int font1_width = getFontWidth(font1_nr);
11054   int font1_height = getFontHeight(font1_nr);
11055   int font2_height = getFontHeight(font2_nr);
11056   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
11057   int font2_yoffset = (font1_height - font2_height) / 2;
11058   int num_elements_text_len = strlen(num_elements_text) * font1_width;
11059   int num_similar_text_len = strlen(num_similar_text) * font1_width;
11060   int properties_text_len = strlen(properties_text) * font1_width;
11061   int xpos = ED_ELEMENT_SETTINGS_X(0);
11062   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
11063   int i, x, y;
11064
11065   if (setup.editor.show_element_token)
11066   {
11067     int font3_nr = FONT_TEXT_3;
11068     int font3_height = getFontHeight(font3_nr);
11069
11070     DrawTextF(xpos, ypos, font3_nr,
11071               "[%s]", element_info[properties_element].token_name);
11072
11073     ypos += 2 * font3_height;
11074   }
11075
11076   // ----- print number of elements / percentage of this element in level
11077
11078   for (y = 0; y < lev_fieldy; y++)
11079   {
11080     for (x = 0; x < lev_fieldx; x++)
11081     {
11082       if (Tile[x][y] == properties_element)
11083       {
11084         num_elements_in_level++;
11085       }
11086       else if (IS_MM_WALL(Tile[x][y]) &&
11087                map_mm_wall_element(Tile[x][y]) == properties_element)
11088       {
11089         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
11090       }
11091     }
11092   }
11093
11094   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
11095
11096   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
11097
11098   if (num_hires_tiles_in_level > 0)
11099     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
11100               "%d wall tiles", num_hires_tiles_in_level);
11101   else if (num_elements_in_level > 0)
11102     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
11103               "%d (%.2f %%)", num_elements_in_level, percentage);
11104   else
11105     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
11106               none_text);
11107
11108   // ----- print number of similar elements / percentage of them in level
11109
11110   for (y = 0; y < lev_fieldy; y++)
11111   {
11112     for (x = 0; x < lev_fieldx; x++)
11113     {
11114       if (strEqual(element_info[Tile[x][y]].class_name,
11115                    element_info[properties_element].class_name))
11116       {
11117         num_similar_in_level++;
11118       }
11119     }
11120   }
11121
11122   if (num_similar_in_level != num_elements_in_level)
11123   {
11124     ypos += 1 * MAX(font1_height, font2_height);
11125
11126     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
11127
11128     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
11129
11130     if (num_similar_in_level > 0)
11131       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
11132                 "%d (%.2f %%)", num_similar_in_level, percentage);
11133     else
11134       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
11135                 none_text);
11136   }
11137
11138   ypos += 2 * MAX(font1_height, font2_height);
11139
11140   // ----- print standard properties of this element
11141
11142   DrawTextS(xpos, ypos, font1_nr, properties_text);
11143
11144   ypos += line1_height;
11145
11146   for (i = 0; properties[i].value != -1; i++)
11147   {
11148     if (!HAS_PROPERTY(properties_element, properties[i].value))
11149       continue;
11150
11151     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
11152
11153     ypos += font2_height;
11154
11155     num_standard_properties++;
11156   }
11157
11158   if (num_standard_properties == 0)
11159   {
11160     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
11161               font2_nr, none_text);
11162
11163     ypos -= (line1_height - font1_height);
11164   }
11165
11166   ypos += MAX(font1_height, font2_height);
11167
11168   // ----- print special description of this element
11169
11170   PrintInfoText(description_text, font1_nr, xpos, ypos);
11171
11172   ypos += line1_height;
11173
11174   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
11175     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
11176 }
11177
11178 #define TEXT_COLLECTING         "Score for collecting"
11179 #define TEXT_COLLECTING_EXTRA   "Score for extra diamonds"
11180 #define TEXT_SMASHING           "Score for smashing"
11181 #define TEXT_SLURPING           "Score for slurping robot"
11182 #define TEXT_CRACKING           "Score for cracking"
11183 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
11184 #define TEXT_AMOEBA_THRESHOED   "Size for turning to rocks"
11185 #define TEXT_AMOEBA_SLOW_TIME   "Slow growth time (seconds)"
11186 #define TEXT_AMOEBA_SLOW_RATE   "Slow growth rate (percent)"
11187 #define TEXT_AMOEBA_FAST_RATE   "Fast growth rate (percent)"
11188 #define TEXT_DURATION           "Duration when activated"
11189 #define TEXT_DELAY_ON           "Delay before activating"
11190 #define TEXT_DELAY_OFF          "Delay before deactivating"
11191 #define TEXT_DELAY_CHANGING     "Delay before changing"
11192 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
11193 #define TEXT_DELAY_MOVING       "Delay before moving"
11194 #define TEXT_BALL_DELAY         "Element generation delay"
11195 #define TEXT_MOVE_SPEED         "Speed of android moving"
11196 #define TEXT_CLONE_SPEED        "Speed of android cloning"
11197 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
11198 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
11199 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
11200 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
11201 #define TEXT_TIME_BONUS         "Extra time to solve level"
11202 #define TEXT_TIME_PENALTY       "Time penalty if destroyed"
11203 #define TEXT_PERMEABILITY_RATE  "slime permeability rate"
11204 #define TEXT_PERMEABILITY_BITS  "slime permeability bits"
11205 #define TEXT_RANDOM_SEED        "slime random number seed"
11206 #define TEXT_ACID_SPREAD_RATE   "Spread rate (percent)"
11207 #define TEXT_BITER_MOVE_DELAY   "Move delay (BD frames)"
11208 #define TEXT_REPLICATION_DELAY  "Create delay (BD frames)"
11209
11210 static struct
11211 {
11212   int element;
11213   int *value;
11214   char *text;
11215   int min_value;
11216   int max_value;
11217 } elements_with_counter[] =
11218 {
11219   { EL_EMERALD,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11220   { EL_BD_DIAMOND,              &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11221   { EL_BD_DIAMOND,              &level.score[SC_DIAMOND_EXTRA],         TEXT_COLLECTING_EXTRA   },
11222   { EL_EMERALD_YELLOW,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11223   { EL_EMERALD_RED,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11224   { EL_EMERALD_PURPLE,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11225   { EL_SP_INFOTRON,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11226   { EL_DIAMOND,                 &level.score[SC_DIAMOND],               TEXT_COLLECTING         },
11227   { EL_CRYSTAL,                 &level.score[SC_CRYSTAL],               TEXT_COLLECTING         },
11228   { EL_PEARL,                   &level.score[SC_PEARL],                 TEXT_COLLECTING         },
11229   { EL_BUG,                     &level.score[SC_BUG],                   TEXT_SMASHING           },
11230   { EL_BUG_RIGHT,               &level.score[SC_BUG],                   TEXT_SMASHING           },
11231   { EL_BUG_UP,                  &level.score[SC_BUG],                   TEXT_SMASHING           },
11232   { EL_BUG_LEFT,                &level.score[SC_BUG],                   TEXT_SMASHING           },
11233   { EL_BUG_DOWN,                &level.score[SC_BUG],                   TEXT_SMASHING           },
11234   { EL_BD_BUTTERFLY,            &level.score[SC_BUG],                   TEXT_SMASHING           },
11235   { EL_BD_BUTTERFLY_RIGHT,      &level.score[SC_BUG],                   TEXT_SMASHING           },
11236   { EL_BD_BUTTERFLY_UP,         &level.score[SC_BUG],                   TEXT_SMASHING           },
11237   { EL_BD_BUTTERFLY_LEFT,       &level.score[SC_BUG],                   TEXT_SMASHING           },
11238   { EL_BD_BUTTERFLY_DOWN,       &level.score[SC_BUG],                   TEXT_SMASHING           },
11239   { EL_SP_ELECTRON,             &level.score[SC_BUG],                   TEXT_SMASHING           },
11240   { EL_SPACESHIP,               &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11241   { EL_SPACESHIP_RIGHT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11242   { EL_SPACESHIP_UP,            &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11243   { EL_SPACESHIP_LEFT,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11244   { EL_SPACESHIP_DOWN,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11245   { EL_BD_FIREFLY,              &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11246   { EL_BD_FIREFLY_RIGHT,        &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11247   { EL_BD_FIREFLY_UP,           &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11248   { EL_BD_FIREFLY_LEFT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11249   { EL_BD_FIREFLY_DOWN,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11250   { EL_SP_SNIKSNAK,             &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11251   { EL_YAMYAM,                  &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11252   { EL_YAMYAM_LEFT,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11253   { EL_YAMYAM_RIGHT,            &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11254   { EL_YAMYAM_UP,               &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11255   { EL_YAMYAM_DOWN,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11256   { EL_DARK_YAMYAM,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11257   { EL_ROBOT,                   &level.score[SC_ROBOT],                 TEXT_SMASHING           },
11258   { EL_PACMAN,                  &level.score[SC_PACMAN],                TEXT_SMASHING           },
11259   { EL_PACMAN_RIGHT,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
11260   { EL_PACMAN_UP,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
11261   { EL_PACMAN_LEFT,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
11262   { EL_PACMAN_DOWN,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
11263   { EL_NUT,                     &level.score[SC_NUT],                   TEXT_CRACKING           },
11264   { EL_DYNAMITE,                &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11265   { EL_EM_DYNAMITE,             &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11266   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11267   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11268   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11269   { EL_SHIELD_NORMAL,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
11270   { EL_SHIELD_DEADLY,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
11271   { EL_EXTRA_TIME,              &level.extra_time_score,                TEXT_COLLECTING         },
11272   { EL_KEY_1,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11273   { EL_KEY_2,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11274   { EL_KEY_3,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11275   { EL_KEY_4,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11276   { EL_EM_KEY_1,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11277   { EL_EM_KEY_2,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11278   { EL_EM_KEY_3,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11279   { EL_EM_KEY_4,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11280   { EL_EMC_KEY_5,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11281   { EL_EMC_KEY_6,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11282   { EL_EMC_KEY_7,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11283   { EL_EMC_KEY_8,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11284   { EL_DC_KEY_WHITE,            &level.score[SC_KEY],                   TEXT_COLLECTING         },
11285   { EL_MM_KETTLE,               &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11286   { EL_DF_CELL,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11287   { EL_MM_KEY,                  &level.score[SC_KEY],                   TEXT_COLLECTING         },
11288   { EL_MM_LIGHTBALL,            &level.score[SC_ELEM_BONUS],            TEXT_COLLECTING         },
11289   { EL_MM_PACMAN,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
11290   { EL_MM_PACMAN_RIGHT,         &level.score[SC_PACMAN],                TEXT_SMASHING           },
11291   { EL_MM_PACMAN_UP,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
11292   { EL_MM_PACMAN_LEFT,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
11293   { EL_MM_PACMAN_DOWN,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
11294   { EL_AMOEBA_WET,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11295   { EL_AMOEBA_DRY,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11296   { EL_AMOEBA_FULL,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11297   { EL_BD_AMOEBA,               &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11298   { EL_EMC_DRIPPER,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11299   { EL_BD_AMOEBA,               &level.bd_amoeba_threshold_too_big,     TEXT_AMOEBA_THRESHOED   },
11300   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_time,      TEXT_AMOEBA_SLOW_TIME   },
11301   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_rate,      TEXT_AMOEBA_SLOW_RATE,
11302                                 0, 100                                                          },
11303   { EL_BD_AMOEBA,               &level.bd_amoeba_fast_growth_rate,      TEXT_AMOEBA_FAST_RATE,
11304                                 0, 100                                                          },
11305   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_threshold_too_big,   TEXT_AMOEBA_THRESHOED   },
11306   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_time,    TEXT_AMOEBA_SLOW_TIME   },
11307   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_rate,    TEXT_AMOEBA_SLOW_RATE,
11308                                 0, 100                                                          },
11309   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_fast_growth_rate,    TEXT_AMOEBA_FAST_RATE,
11310                                 0, 100                                                          },
11311   { EL_MAGIC_WALL,              &level.time_magic_wall,                 TEXT_DURATION           },
11312   { EL_BD_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
11313   { EL_DC_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
11314   { EL_ROBOT_WHEEL,             &level.time_wheel,                      TEXT_DURATION           },
11315   { EL_TIMEGATE_SWITCH,         &level.time_timegate,                   TEXT_DURATION           },
11316   { EL_DC_TIMEGATE_SWITCH,      &level.time_timegate,                   TEXT_DURATION           },
11317   { EL_LIGHT_SWITCH,            &level.time_light,                      TEXT_DURATION           },
11318   { EL_LIGHT_SWITCH_ACTIVE,     &level.time_light,                      TEXT_DURATION           },
11319   { EL_SHIELD_NORMAL,           &level.shield_normal_time,              TEXT_DURATION           },
11320   { EL_SHIELD_DEADLY,           &level.shield_deadly_time,              TEXT_DURATION           },
11321   { EL_BD_CLOCK,                &level.bd_clock_extra_time,             TEXT_TIME_BONUS,
11322                                 -100, 100                                                       },
11323   { EL_BD_VOODOO_DOLL,          &level.bd_voodoo_penalty_time,          TEXT_TIME_PENALTY,
11324                                 0, 100                                                          },
11325   { EL_BD_SLIME,                &level.bd_slime_permeability_rate,      TEXT_PERMEABILITY_RATE,
11326                                 0, 100                                                          },
11327   { EL_BD_SLIME,                &level.bd_slime_permeability_bits_c64,  TEXT_PERMEABILITY_BITS,
11328                                 0, 255                                                          },
11329   { EL_BD_SLIME,                &level.bd_slime_random_seed_c64,        TEXT_RANDOM_SEED,
11330                                 -1, 65535                                                       },
11331   { EL_BD_ACID,                 &level.bd_acid_spread_rate,             TEXT_ACID_SPREAD_RATE,
11332                                 0, 100                                                          },
11333   { EL_BD_BITER,                &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11334                                 0, 3                                                            },
11335   { EL_BD_BITER_RIGHT,          &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11336                                 0, 3                                                            },
11337   { EL_BD_BITER_UP,             &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11338                                 0, 3                                                            },
11339   { EL_BD_BITER_LEFT,           &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11340                                 0, 3                                                            },
11341   { EL_BD_BITER_DOWN,           &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11342                                 0, 3                                                            },
11343   { EL_BD_REPLICATOR,           &level.bd_replicator_create_delay,      TEXT_REPLICATION_DELAY,
11344                                 0, 100                                                          },
11345   { EL_EXTRA_TIME,              &level.extra_time,                      TEXT_TIME_BONUS         },
11346   { EL_TIME_ORB_FULL,           &level.time_orb_time,                   TEXT_TIME_BONUS         },
11347   { EL_GAME_OF_LIFE,            &level.game_of_life[0],                 TEXT_GAME_OF_LIFE_1,0,8 },
11348   { EL_GAME_OF_LIFE,            &level.game_of_life[1],                 TEXT_GAME_OF_LIFE_2,0,8 },
11349   { EL_GAME_OF_LIFE,            &level.game_of_life[2],                 TEXT_GAME_OF_LIFE_3,0,8 },
11350   { EL_GAME_OF_LIFE,            &level.game_of_life[3],                 TEXT_GAME_OF_LIFE_4,0,8 },
11351   { EL_BIOMAZE,                 &level.biomaze[0],                      TEXT_GAME_OF_LIFE_1,0,8 },
11352   { EL_BIOMAZE,                 &level.biomaze[1],                      TEXT_GAME_OF_LIFE_2,0,8 },
11353   { EL_BIOMAZE,                 &level.biomaze[2],                      TEXT_GAME_OF_LIFE_3,0,8 },
11354   { EL_BIOMAZE,                 &level.biomaze[3],                      TEXT_GAME_OF_LIFE_4,0,8 },
11355   { EL_EMC_ANDROID,             &level.android_move_time,               TEXT_MOVE_SPEED         },
11356   { EL_EMC_ANDROID,             &level.android_clone_time,              TEXT_CLONE_SPEED        },
11357   { EL_EMC_MAGIC_BALL,          &level.ball_time,                       TEXT_BALL_DELAY         },
11358   { EL_EMC_LENSES,              &level.lenses_score,                    TEXT_COLLECTING         },
11359   { EL_EMC_MAGNIFIER,           &level.magnify_score,                   TEXT_COLLECTING         },
11360   { EL_SPRING,                  &level.slurp_score,                     TEXT_SLURPING           },
11361   { EL_SPRING_LEFT,             &level.slurp_score,                     TEXT_SLURPING           },
11362   { EL_SPRING_RIGHT,            &level.slurp_score,                     TEXT_SLURPING           },
11363   { EL_EMC_LENSES,              &level.lenses_time,                     TEXT_DURATION           },
11364   { EL_EMC_MAGNIFIER,           &level.magnify_time,                    TEXT_DURATION           },
11365   { EL_MM_FUSE_ACTIVE,          &level.mm_time_fuse,                    TEXT_DELAY_OFF          },
11366   { EL_MM_BOMB,                 &level.mm_time_bomb,                    TEXT_DELAY_EXPLODING    },
11367   { EL_MM_GRAY_BALL,            &level.mm_time_ball,                    TEXT_DELAY_CHANGING     },
11368   { EL_MM_STEEL_BLOCK,          &level.mm_time_block,                   TEXT_DELAY_MOVING       },
11369   { EL_MM_WOODEN_BLOCK,         &level.mm_time_block,                   TEXT_DELAY_MOVING       },
11370
11371   { -1,                         NULL,                                   NULL                    }
11372 };
11373
11374 static boolean checkPropertiesConfig(int element)
11375 {
11376   int i;
11377
11378   // special case: empty space customization only available in R'n'D game engine
11379   if (element == EL_EMPTY_SPACE && level.game_engine_type != GAME_ENGINE_TYPE_RND)
11380     return FALSE;
11381
11382   // special case: BD style rock customization only available in BD game engine
11383   if (element == EL_BD_ROCK && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11384     return FALSE;
11385
11386   if (IS_GEM(element) ||
11387       IS_CUSTOM_ELEMENT(element) ||
11388       IS_GROUP_ELEMENT(element) ||
11389       IS_EMPTY_ELEMENT(element) ||
11390       IS_BALLOON_ELEMENT(element) ||
11391       IS_ENVELOPE(element) ||
11392       IS_MM_ENVELOPE(element) ||
11393       IS_MM_MCDUFFIN(element) ||
11394       IS_DF_LASER(element) ||
11395       IS_PLAYER_ELEMENT(element) ||
11396       IS_BD_PLAYER_ELEMENT(element) ||
11397       IS_BD_EXPANDABLE_WALL(properties_element) ||
11398       IS_BD_CONVEYOR_BELT(properties_element) ||
11399       IS_BD_CONVEYOR_BELT_SWITCH(properties_element) ||
11400       IS_SOKOBAN_OBJECT_OR_FIELD(element) ||
11401       HAS_EDITOR_CONTENT(element) ||
11402       CAN_GROW(element) ||
11403       COULD_MOVE_INTO_ACID(element) ||
11404       MAYBE_DONT_COLLIDE_WITH(element) ||
11405       element == EL_BD_ROCK ||
11406       element == EL_BD_MEGA_ROCK ||
11407       element == EL_BD_SWEET ||
11408       element == EL_BD_VOODOO_DOLL ||
11409       element == EL_BD_WATER)
11410   {
11411     return TRUE;
11412   }
11413   else
11414   {
11415     for (i = 0; elements_with_counter[i].element != -1; i++)
11416       if (elements_with_counter[i].element == element)
11417         return TRUE;
11418   }
11419
11420   return FALSE;
11421 }
11422
11423 static void SetAutomaticNumberOfGemsNeeded(void)
11424 {
11425   int x, y;
11426
11427   if (!level.auto_count_gems)
11428     return;
11429
11430   level.gems_needed = 0;
11431
11432   for (x = 0; x < lev_fieldx; x++)
11433   {
11434     for (y = 0; y < lev_fieldy; y++)
11435     {
11436       int element = Tile[x][y];
11437
11438       switch (element)
11439       {
11440         case EL_EMERALD:
11441         case EL_EMERALD_YELLOW:
11442         case EL_EMERALD_RED:
11443         case EL_EMERALD_PURPLE:
11444         case EL_BD_DIAMOND:
11445         case EL_WALL_EMERALD:
11446         case EL_WALL_EMERALD_YELLOW:
11447         case EL_WALL_EMERALD_RED:
11448         case EL_WALL_EMERALD_PURPLE:
11449         case EL_WALL_BD_DIAMOND:
11450         case EL_NUT:
11451         case EL_SP_INFOTRON:
11452         case EL_MM_KETTLE:
11453         case EL_DF_CELL:
11454           level.gems_needed++;
11455           break;
11456
11457         case EL_DIAMOND:
11458         case EL_WALL_DIAMOND:
11459           level.gems_needed += 3;
11460           break;
11461
11462         case EL_PEARL:
11463         case EL_WALL_PEARL:
11464           level.gems_needed += 5;
11465           break;
11466
11467         case EL_CRYSTAL:
11468         case EL_WALL_CRYSTAL:
11469           level.gems_needed += 8;
11470           break;
11471
11472         default:
11473           break;
11474       }
11475     }
11476   }
11477
11478   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
11479 }
11480
11481 static void DrawPropertiesConfig(void)
11482 {
11483   boolean draw_footer_line = FALSE;
11484   int max_num_element_counters = 4;
11485   int num_element_counters = 0;
11486   int i;
11487
11488   if (!checkPropertiesConfig(properties_element))
11489   {
11490     int xpos = ED_ELEMENT_SETTINGS_X(0);
11491     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
11492
11493     PrintInfoText("No configuration options available.", FONT_TEXT_1, xpos, ypos);
11494
11495     return;
11496   }
11497
11498   // check if there are elements where a value can be chosen for
11499   for (i = 0; elements_with_counter[i].element != -1; i++)
11500   {
11501     if (elements_with_counter[i].element != properties_element)
11502       continue;
11503
11504     // special case: score for extra diamonds only available in BD game engine
11505     if (elements_with_counter[i].element == EL_BD_DIAMOND &&
11506         elements_with_counter[i].value == &level.score[SC_DIAMOND_EXTRA] &&
11507         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11508       continue;
11509
11510     // special case: some amoeba counters only available in BD game engine
11511     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11512         elements_with_counter[i].value != &level.amoeba_speed &&
11513         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11514       continue;
11515
11516     // special case: some amoeba counters only available in R'n'D game engine
11517     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11518         elements_with_counter[i].value == &level.amoeba_speed &&
11519         level.game_engine_type == GAME_ENGINE_TYPE_BD)
11520       continue;
11521
11522     int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
11523
11524     counterbutton_info[counter_id].y =
11525       ED_ELEMENT_SETTINGS_YPOS((HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
11526                                (CAN_GROW(properties_element)                ? 1 : 0) +
11527                                (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
11528                                (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
11529                                (properties_element == EL_BD_VOODOO_DOLL     ? 4 : 0) +
11530                                (properties_element == EL_BD_SLIME           ? 1 : 0) +
11531                                (properties_element == EL_BD_ACID            ? 1 : 0) +
11532                                (properties_element == EL_BD_REPLICATOR      ? 1 : 0) +
11533                                (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
11534                                num_element_counters);
11535
11536     // special case: set magic wall counter for BD game engine separately
11537     if (properties_element == EL_BD_MAGIC_WALL && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11538       counterbutton_info[counter_id].y = ED_ELEMENT_SETTINGS_YPOS(1);
11539
11540     // special case: set amoeba counters for BD game engine separately
11541     if ((properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD) ||
11542         (properties_element == EL_BD_AMOEBA_2))
11543       counterbutton_info[counter_id].y = ED_ELEMENT_SETTINGS_YPOS(3 + num_element_counters);
11544
11545     counterbutton_info[counter_id].value      = elements_with_counter[i].value;
11546     counterbutton_info[counter_id].text_right = elements_with_counter[i].text;
11547     counterbutton_info[counter_id].min_value  = elements_with_counter[i].min_value;
11548     counterbutton_info[counter_id].max_value  = elements_with_counter[i].max_value;
11549
11550     // default: counter values between 0 and 999
11551     if (counterbutton_info[counter_id].max_value == 0)
11552       counterbutton_info[counter_id].max_value = 999;
11553
11554     MapCounterButtons(counter_id);
11555
11556     num_element_counters++;
11557     if (num_element_counters >= max_num_element_counters)
11558       break;
11559   }
11560
11561   if (properties_element == EL_BD_MAGIC_WALL && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11562   {
11563     // draw stickybutton gadget
11564     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11565
11566     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING);
11567     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA);
11568
11569     MapDrawingArea(ED_DRAWING_ID_BD_MAGIC_WALL_DIAMOND_TO);
11570     MapDrawingArea(ED_DRAWING_ID_BD_MAGIC_WALL_ROCK_TO);
11571     MapDrawingArea(ED_DRAWING_ID_BD_MAGIC_WALL_MEGA_ROCK_TO);
11572     MapDrawingArea(ED_DRAWING_ID_BD_MAGIC_WALL_NUT_TO);
11573     MapDrawingArea(ED_DRAWING_ID_BD_MAGIC_WALL_NITRO_PACK_TO);
11574     MapDrawingArea(ED_DRAWING_ID_BD_MAGIC_WALL_FLYING_DIAMOND_TO);
11575     MapDrawingArea(ED_DRAWING_ID_BD_MAGIC_WALL_FLYING_ROCK_TO);
11576   }
11577
11578   if (HAS_EDITOR_CONTENT(properties_element))
11579   {
11580     // draw stickybutton gadget
11581     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11582
11583     if (properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11584     {
11585       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11586       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11587
11588       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG);
11589       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED);
11590     }
11591     else if (properties_element == EL_BD_AMOEBA_2)
11592     {
11593       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11594       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11595       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA);
11596
11597       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG);
11598       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED);
11599       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING);
11600       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE);
11601     }
11602     else if (IS_AMOEBOID(properties_element))
11603       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
11604     else if (properties_element == EL_BD_ACID)
11605     {
11606       MapDrawingArea(ED_DRAWING_ID_BD_ACID_EATS_ELEMENT);
11607       MapDrawingArea(ED_DRAWING_ID_BD_ACID_TURNS_TO_ELEMENT);
11608     }
11609     else if (IS_BD_BITER(properties_element))
11610     {
11611       MapDrawingArea(ED_DRAWING_ID_BD_BITER_EATS_ELEMENT);
11612     }
11613     else if (properties_element == EL_BD_BLADDER)
11614     {
11615       MapDrawingArea(ED_DRAWING_ID_BD_BLADDER_CONVERTS_BY_ELEMENT);
11616     }
11617     else if (properties_element == EL_YAMYAM ||
11618              properties_element == EL_YAMYAM_LEFT ||
11619              properties_element == EL_YAMYAM_RIGHT ||
11620              properties_element == EL_YAMYAM_UP ||
11621              properties_element == EL_YAMYAM_DOWN)
11622       DrawYamYamContentAreas();
11623     else if (properties_element == EL_EMC_MAGIC_BALL)
11624     {
11625       DrawMagicBallContentAreas();
11626
11627       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
11628       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
11629     }
11630     else if (properties_element == EL_EMC_ANDROID)
11631       DrawAndroidElementArea();
11632     else if (properties_element == EL_MM_GRAY_BALL)
11633     {
11634       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
11635       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
11636       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
11637       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
11638
11639       DrawMMBallContentArea();
11640     }
11641   }
11642
11643   if (IS_PLAYER_ELEMENT(properties_element))
11644   {
11645     int player_nr = GET_PLAYER_NR(properties_element);
11646
11647     // these properties can be set for every player individually
11648
11649     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11650     {
11651       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
11652         &level.start_element[player_nr];
11653       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
11654         &level.artwork_element[player_nr];
11655       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
11656         &level.explosion_element[player_nr];
11657
11658       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
11659         &level.use_start_element[player_nr];
11660       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
11661         &level.use_artwork_element[player_nr];
11662       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
11663         &level.use_explosion_element[player_nr];
11664       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
11665         &level.initial_player_gravity[player_nr];
11666
11667       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
11668         &level.initial_player_stepsize[player_nr];
11669
11670       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
11671       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
11672                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
11673                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
11674       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
11675       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
11676       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
11677       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
11678       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
11679       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
11680       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
11681       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
11682       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
11683       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
11684       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
11685
11686       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
11687       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
11688       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
11689
11690       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
11691     }
11692     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11693     {
11694       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
11695         &level.initial_inventory_content[player_nr][0];
11696
11697       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
11698         &level.initial_inventory_size[player_nr];
11699
11700       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
11701         &level.use_initial_inventory[player_nr];
11702
11703       // draw checkbutton gadgets
11704       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
11705       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
11706       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
11707
11708       // draw counter gadgets
11709       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
11710
11711       // draw drawing area gadgets
11712       DrawPlayerInitialInventoryArea(properties_element);
11713     }
11714   }
11715
11716   if (IS_BD_PLAYER_ELEMENT(properties_element))
11717   {
11718     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11719       ED_ELEMENT_SETTINGS_YPOS(2);
11720     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11721       ED_ELEMENT_SETTINGS_YPOS(3);
11722     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11723       ED_ELEMENT_SETTINGS_YPOS(4);
11724
11725     // draw checkbutton gadgets
11726     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS);
11727     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE);
11728     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11729
11730     // draw counter gadgets
11731     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11732     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11733
11734     // draw drawing area gadgets
11735     MapDrawingArea(ED_DRAWING_ID_BD_SNAP_ELEMENT);
11736   }
11737
11738   if (properties_element == EL_BD_ROCK && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11739   {
11740     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11741       ED_ELEMENT_SETTINGS_YPOS(0);
11742     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11743       ED_ELEMENT_SETTINGS_YPOS(1);
11744
11745     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11746     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11747   }
11748
11749   if (properties_element == EL_BD_MEGA_ROCK ||
11750       properties_element == EL_BD_SWEET)
11751   {
11752     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11753       ED_ELEMENT_SETTINGS_YPOS(0);
11754     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11755       ED_ELEMENT_SETTINGS_YPOS(1);
11756
11757     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11758     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11759   }
11760
11761   if (properties_element == EL_BD_VOODOO_DOLL)
11762   {
11763     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS);
11764     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER);
11765     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK);
11766     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION);
11767   }
11768
11769   if (properties_element == EL_BD_SLIME)
11770   {
11771     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE);
11772   }
11773
11774   if (IS_BD_EXPANDABLE_WALL(properties_element))
11775   {
11776     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_CHANGE_EXPANDING_WALL);
11777   }
11778
11779   if (properties_element == EL_BD_REPLICATOR)
11780   {
11781     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_REPLICATORS_ACTIVE);
11782   }
11783
11784   if (IS_BD_CONVEYOR_BELT(properties_element) ||
11785       IS_BD_CONVEYOR_BELT_SWITCH(properties_element))
11786   {
11787     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_ACTIVE);
11788     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_CHANGED);
11789   }
11790
11791   if (properties_element == EL_BD_WATER)
11792   {
11793     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_WATER_CANNOT_FLOW_DOWN);
11794   }
11795
11796   // special case: slippery walls option for gems only available in R'n'D game engine
11797   if (IS_GEM(properties_element) && level.game_engine_type == GAME_ENGINE_TYPE_RND)
11798     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
11799
11800   if (properties_element == EL_EM_DYNAMITE)
11801     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
11802
11803   if (COULD_MOVE_INTO_ACID(properties_element) &&
11804       !IS_PLAYER_ELEMENT(properties_element) &&
11805       (!IS_CUSTOM_ELEMENT(properties_element) ||
11806        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
11807   {
11808     // set position for checkbutton for "can move into acid"
11809     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
11810       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
11811     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
11812       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
11813                                IS_BALLOON_ELEMENT(properties_element) ||
11814                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11815
11816     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
11817   }
11818
11819   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
11820     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
11821
11822   if (properties_element == EL_SPRING ||
11823       properties_element == EL_SPRING_LEFT ||
11824       properties_element == EL_SPRING_RIGHT)
11825     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
11826
11827   if (properties_element == EL_TIME_ORB_FULL)
11828     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
11829
11830   if (properties_element == EL_GAME_OF_LIFE ||
11831       properties_element == EL_BIOMAZE)
11832     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
11833
11834   if (CAN_GROW(properties_element) && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11835   {
11836     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
11837       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11838
11839     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
11840   }
11841
11842   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
11843     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
11844
11845   if (properties_element == EL_SOKOBAN_OBJECT)
11846     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
11847
11848   if (properties_element == EL_SOKOBAN_OBJECT ||
11849       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
11850       properties_element == EL_SOKOBAN_FIELD_FULL)
11851   {
11852     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
11853       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
11854                                0 : 1);
11855
11856     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
11857   }
11858
11859   if (IS_BALLOON_ELEMENT(properties_element))
11860     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
11861
11862   if (IS_ENVELOPE(properties_element) ||
11863       IS_MM_ENVELOPE(properties_element))
11864   {
11865     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
11866     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
11867     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
11868     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
11869     int envelope_nr = ENVELOPE_NR(properties_element);
11870
11871     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
11872     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
11873
11874     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
11875     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
11876
11877     // display counter to choose size of envelope text area
11878     MapCounterButtons(counter1_id);
11879     MapCounterButtons(counter2_id);
11880
11881     // display checkbuttons to choose auto-wrap and alignment properties
11882     MapCheckbuttonGadget(button1_id);
11883     MapCheckbuttonGadget(button2_id);
11884
11885     DrawEnvelopeTextArea(envelope_nr);
11886   }
11887
11888   if (IS_MM_MCDUFFIN(properties_element))
11889   {
11890     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
11891     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
11892     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
11893   }
11894
11895   if (IS_DF_LASER(properties_element))
11896   {
11897     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
11898     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
11899     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
11900   }
11901
11902   if (IS_CUSTOM_ELEMENT(properties_element))
11903   {
11904     // draw stickybutton gadget
11905     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11906
11907     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11908     {
11909       // draw checkbutton gadgets
11910       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
11911            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
11912         MapCheckbuttonGadget(i);
11913
11914       // draw counter gadgets
11915       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
11916            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
11917         MapCounterButtons(i);
11918
11919       // draw selectbox gadgets
11920       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
11921            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
11922         MapSelectboxGadget(i);
11923
11924       // draw textbutton gadgets
11925       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11926
11927       // draw text input gadgets
11928       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11929
11930       // draw drawing area gadgets
11931       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11932
11933       draw_footer_line = TRUE;
11934     }
11935     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11936     {
11937       // draw checkbutton gadgets
11938       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
11939            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
11940         MapCheckbuttonGadget(i);
11941
11942       // draw counter gadgets
11943       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
11944            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
11945         MapCounterButtons(i);
11946
11947       // draw selectbox gadgets
11948       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
11949            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
11950         MapSelectboxGadget(i);
11951
11952       // draw drawing area gadgets
11953       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
11954       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
11955       DrawCustomContentArea();
11956     }
11957   }
11958   else if (IS_GROUP_ELEMENT(properties_element))
11959   {
11960     // draw stickybutton gadget
11961     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11962
11963     // draw checkbutton gadgets
11964     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11965     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11966
11967     // draw counter gadgets
11968     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
11969
11970     // draw selectbox gadgets
11971     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
11972
11973     // draw textbutton gadgets
11974     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11975
11976     // draw drawing area gadgets
11977     DrawGroupElementArea();
11978
11979     // draw text input gadgets
11980     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11981
11982     // draw drawing area gadgets
11983     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11984
11985     draw_footer_line = TRUE;
11986   }
11987   else if (IS_EMPTY_ELEMENT(properties_element))
11988   {
11989     // draw stickybutton gadget
11990     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11991
11992     // draw checkbutton gadgets
11993     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11994     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11995
11996     // draw textbutton gadgets
11997     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11998
11999     // draw drawing area gadgets
12000     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
12001
12002     draw_footer_line = TRUE;
12003   }
12004
12005   // draw little footer border line above CE/GE use/save template gadgets
12006   if (draw_footer_line)
12007   {
12008     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
12009     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
12010     int gd_x = gd->x + gd_gi1->border.width / 2;
12011     int gd_y = gd->y + gd_gi1->height - 1;
12012     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
12013
12014     if (tab_color != BLACK_PIXEL)               // black => transparent
12015       FillRectangle(drawto,
12016                     SX + ED_ELEMENT_SETTINGS_X(0),
12017                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
12018                     ED_TAB_BAR_HEIGHT,
12019                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
12020   }
12021 }
12022
12023 static void DrawPropertiesChangeDrawingAreas(void)
12024 {
12025   if (IS_CUSTOM_ELEMENT(properties_element))
12026   {
12027     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
12028     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
12029     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
12030
12031     DrawCustomChangeContentArea();
12032   }
12033
12034   redraw_mask |= REDRAW_FIELD;
12035 }
12036
12037 static void DrawPropertiesChange(void)
12038 {
12039   int i;
12040
12041   // needed to initially set selectbox options for special action options
12042   setSelectboxSpecialActionOptions();
12043
12044   // draw stickybutton gadget
12045   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
12046
12047   // draw checkbutton gadgets
12048   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
12049        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
12050     MapCheckbuttonGadget(i);
12051
12052   // draw counter gadgets
12053   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
12054        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
12055     MapCounterButtons(i);
12056
12057   // draw selectbox gadgets
12058   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
12059        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
12060     MapSelectboxGadget(i);
12061
12062   // draw textbutton gadgets
12063   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
12064        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
12065     MapTextbuttonGadget(i);
12066
12067   // draw graphicbutton gadgets
12068   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
12069        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
12070     MapGraphicbuttonGadget(i);
12071
12072   // draw drawing area gadgets
12073   DrawPropertiesChangeDrawingAreas();
12074 }
12075
12076 static void DrawEditorElementAnimation(int x, int y)
12077 {
12078   int graphic;
12079   int frame;
12080
12081   getEditorGraphicAndFrame(properties_element, &graphic, &frame, FALSE);
12082
12083   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
12084 }
12085
12086 static void DrawEditorElementName(int x, int y, int font_nr)
12087 {
12088   char *element_name = getElementInfoText(properties_element);
12089   int font_width = getFontWidth(font_nr);
12090   int font_height = getFontHeight(font_nr);
12091   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
12092   int max_chars_per_line = max_text_width / font_width;
12093
12094   if (strlen(element_name) <= max_chars_per_line)
12095     DrawTextS(x, y, font_nr, element_name);
12096   else
12097   {
12098     char buffer[max_chars_per_line + 1];
12099     int next_pos = max_chars_per_line;
12100
12101     strncpy(buffer, element_name, max_chars_per_line);
12102     buffer[max_chars_per_line] = '\0';
12103
12104     if (element_name[max_chars_per_line] == ' ')
12105       next_pos++;
12106     else
12107     {
12108       int i;
12109
12110       for (i = max_chars_per_line - 1; i >= 0; i--)
12111         if (buffer[i] == ' ')
12112           break;
12113
12114       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
12115       {
12116         buffer[i] = '\0';
12117         next_pos = i + 1;
12118       }
12119     }
12120
12121     DrawTextS(x, y - font_height / 2, font_nr, buffer);
12122
12123     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
12124     buffer[max_chars_per_line] = '\0';
12125
12126     DrawTextS(x, y + font_height / 2, font_nr, buffer);
12127   }
12128 }
12129
12130 static void DrawPropertiesWindow(void)
12131 {
12132   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
12133   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
12134   int border_size = gd->border_size;
12135   int font_nr = FONT_TEXT_1;
12136   int font_height = getFontHeight(font_nr);
12137   int xoffset = TILEX + element_border + 3 * border_size;
12138   int yoffset = (TILEY - font_height) / 2;
12139   int x1 = editor.settings.element_graphic.x + element_border;
12140   int y1 = editor.settings.element_graphic.y + element_border;
12141   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
12142             editor.settings.element_name.x);
12143   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
12144             editor.settings.element_name.y);
12145   char *text = "Element Settings";
12146   int font2_nr = FONT_TITLE_1;
12147   struct MenuPosInfo *pos = &editor.settings.headline;
12148   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
12149   int sy = SY + pos->y;
12150
12151   stick_element_properties_window = FALSE;
12152
12153   // make sure that previous properties edit mode exists for this element
12154   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
12155       !IS_CUSTOM_ELEMENT(properties_element))
12156     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
12157
12158   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
12159       !IS_PLAYER_ELEMENT(properties_element) &&
12160       !IS_CUSTOM_ELEMENT(properties_element))
12161     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
12162
12163   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
12164       (IS_PLAYER_ELEMENT(properties_element) ||
12165        IS_CUSTOM_ELEMENT(properties_element)))
12166     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
12167
12168   CopyElementPropertiesToEditor(properties_element);
12169
12170   UnmapLevelEditorFieldGadgets();
12171   UnmapLevelEditorToolboxDrawingGadgets();
12172   UnmapLevelEditorToolboxCustomGadgets();
12173
12174   MapLevelEditorToolboxCustomGadgetsIfNeeded();
12175
12176   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
12177   ClearField();
12178
12179   DrawText(sx, sy, text, font2_nr);
12180
12181   FrameCounter = 0;     // restart animation frame counter
12182
12183   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
12184   DrawEditorElementAnimation(SX + x1, SY + y1);
12185   DrawEditorElementName(x2, y2, font_nr);
12186
12187   DrawPropertiesTabulatorGadgets();
12188
12189   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
12190     DrawPropertiesInfo();
12191   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
12192     DrawPropertiesChange();
12193   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
12194     DrawPropertiesConfig();
12195 }
12196
12197 static void DrawPaletteWindow(void)
12198 {
12199   int i;
12200
12201   UnmapLevelEditorFieldGadgets();
12202
12203   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
12204   ClearField();
12205
12206   // map buttons to select elements
12207   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
12208     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
12209   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
12210   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
12211   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
12212 }
12213
12214 static void UpdateCustomElementGraphicGadgets(void)
12215 {
12216   int i;
12217
12218   InitElementPropertiesGfxElement();
12219
12220   ModifyEditorElementList();
12221   RedrawDrawingElements();
12222
12223   // force redraw of all mapped drawing area gadgets
12224   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
12225   {
12226     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
12227
12228     if (gi->mapped)
12229       MapDrawingArea(i);
12230   }
12231 }
12232
12233 static int getOpenDirectionFromTube(int element)
12234 {
12235   switch (element)
12236   {
12237     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
12238     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
12239     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
12240     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
12241     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
12242     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
12243     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
12244     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
12245     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
12246     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
12247     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
12248   }
12249
12250   return MV_NONE;
12251 }
12252
12253 static int getTubeFromOpenDirection(int direction)
12254 {
12255   switch (direction)
12256   {
12257     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
12258     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
12259     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
12260     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
12261     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
12262     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
12263     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
12264     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
12265     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
12266     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
12267     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
12268
12269     // if only one direction, fall back to simple tube with that direction
12270     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
12271     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
12272     case (MV_UP):                       return EL_TUBE_VERTICAL;
12273     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
12274   }
12275
12276   return EL_EMPTY;
12277 }
12278
12279 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
12280 {
12281   int element_new = getTubeFromOpenDirection(direction);
12282
12283   return (element_new != EL_EMPTY ? element_new : element_old);
12284 }
12285
12286 static int getOpenDirectionFromBelt(int element)
12287 {
12288   int belt_dir = getBeltDirFromBeltElement(element);
12289
12290   return (belt_dir == MV_LEFT ? MV_RIGHT :
12291           belt_dir == MV_RIGHT ? MV_LEFT :
12292           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
12293 }
12294
12295 static int getBeltFromNrAndOpenDirection(int nr, int direction)
12296 {
12297   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
12298                   direction == MV_RIGHT ? MV_LEFT :
12299                   direction == MV_HORIZONTAL ? MV_NONE : direction);
12300
12301   if (direction == MV_NONE)
12302     return EL_EMPTY;
12303
12304   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
12305 }
12306
12307 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
12308                                                  int element_old)
12309 {
12310   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
12311
12312   return (element_new != EL_EMPTY ? element_new : element_old);
12313 }
12314
12315 static int getOpenDirectionFromPool(int element)
12316 {
12317   switch (element)
12318   {
12319     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
12320     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
12321     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
12322     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
12323     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
12324     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
12325   }
12326
12327   return MV_NONE;
12328 }
12329
12330 static int getPoolFromOpenDirection(int direction)
12331 {
12332   switch (direction)
12333   {
12334     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
12335     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
12336     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
12337     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
12338     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
12339     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
12340   }
12341
12342   return EL_EMPTY;
12343 }
12344
12345 static int getPoolFromOpenDirectionExt(int direction, int help_element)
12346 {
12347   int element = getPoolFromOpenDirection(direction);
12348   int help_direction = getOpenDirectionFromPool(help_element);
12349
12350   if (element == EL_EMPTY)
12351   {
12352     int help_direction_vertical = help_direction & MV_VERTICAL;
12353
12354     element = getPoolFromOpenDirection(direction | help_direction_vertical);
12355   }
12356
12357   if (element == EL_EMPTY)
12358   {
12359     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
12360
12361     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
12362   }
12363
12364   return element;
12365 }
12366
12367 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
12368 {
12369   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
12370
12371   return (element_new != EL_EMPTY ? element_new : element_old);
12372 }
12373
12374 static int getOpenDirectionFromPillar(int element)
12375 {
12376   switch (element)
12377   {
12378     case EL_EMC_WALL_1:                 return (MV_DOWN);
12379     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
12380     case EL_EMC_WALL_3:                 return (MV_UP);
12381   }
12382
12383   return MV_NONE;
12384 }
12385
12386 static int getPillarFromOpenDirection(int direction)
12387 {
12388   switch (direction)
12389   {
12390     case (MV_DOWN):                     return EL_EMC_WALL_1;
12391     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
12392     case (MV_UP):                       return EL_EMC_WALL_3;
12393   }
12394
12395   return EL_EMPTY;
12396 }
12397
12398 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
12399 {
12400   int element_new = getPillarFromOpenDirection(direction);
12401
12402   return (element_new != EL_EMPTY ? element_new : element_old);
12403 }
12404
12405 static int getOpenDirectionFromSteel2(int element)
12406 {
12407   switch (element)
12408   {
12409     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
12410     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
12411     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
12412     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
12413     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
12414     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
12415     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
12416     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
12417   }
12418
12419   return MV_NONE;
12420 }
12421
12422 static int getSteel2FromOpenDirection(int direction)
12423 {
12424   switch (direction)
12425   {
12426     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
12427     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
12428     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
12429     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
12430     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
12431     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
12432     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
12433     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
12434   }
12435
12436   return EL_EMPTY;
12437 }
12438
12439 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
12440 {
12441   int element_new = getSteel2FromOpenDirection(direction);
12442
12443   return (element_new != EL_EMPTY ? element_new : element_old);
12444 }
12445
12446 static int getOpenDirectionFromChip(int element)
12447 {
12448   switch (element)
12449   {
12450     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
12451     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
12452     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
12453     case EL_SP_CHIP_TOP:                return (MV_DOWN);
12454     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
12455   }
12456
12457   return MV_NONE;
12458 }
12459
12460 static int getChipFromOpenDirection(int direction)
12461 {
12462   switch (direction)
12463   {
12464     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
12465     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
12466     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
12467     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
12468     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
12469   }
12470
12471   return EL_EMPTY;
12472 }
12473
12474 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
12475 {
12476   int element_new = getChipFromOpenDirection(direction);
12477
12478   return (element_new != EL_EMPTY ? element_new : element_old);
12479 }
12480
12481 static int getClosedTube(int x, int y)
12482 {
12483   struct XY *xy = xy_directions;
12484   int element_old = IntelliDrawBuffer[x][y];
12485   int direction_old = getOpenDirectionFromTube(element_old);
12486   int direction_new = MV_NONE;
12487   int i;
12488
12489   for (i = 0; i < NUM_DIRECTIONS; i++)
12490   {
12491     int xx = x + xy[i].x;
12492     int yy = y + xy[i].y;
12493     int dir = MV_DIR_FROM_BIT(i);
12494     int dir_opposite = MV_DIR_OPPOSITE(dir);
12495
12496     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
12497         (direction_old & dir) &&
12498         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12499       direction_new |= dir;
12500   }
12501
12502   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
12503 }
12504
12505 static int getClosedBelt(int x, int y)
12506 {
12507   struct XY *xy = xy_directions;
12508   int element_old = IntelliDrawBuffer[x][y];
12509   int nr = getBeltNrFromBeltElement(element_old);
12510   int direction_old = getOpenDirectionFromBelt(element_old);
12511   int direction_new = MV_NONE;
12512   int i;
12513
12514   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12515   {
12516     int xx = x + xy[i].x;
12517     int yy = y + xy[i].y;
12518     int dir = MV_DIR_FROM_BIT(i);
12519     int dir_opposite = MV_DIR_OPPOSITE(dir);
12520
12521     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
12522         (direction_old & dir) &&
12523         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12524       direction_new |= dir;
12525   }
12526
12527   return getBeltFromNrAndOpenDirection(nr, direction_new);
12528 }
12529
12530 static int getClosedPool(int x, int y)
12531 {
12532   struct XY *xy = xy_directions;
12533   int element_old = IntelliDrawBuffer[x][y];
12534   int direction_old = getOpenDirectionFromPool(element_old);
12535   int direction_new = MV_NONE;
12536   int i;
12537
12538   for (i = 0; i < NUM_DIRECTIONS; i++)
12539   {
12540     int xx = x + xy[i].x;
12541     int yy = y + xy[i].y;
12542     int dir = MV_DIR_FROM_BIT(i);
12543     int dir_opposite = MV_DIR_OPPOSITE(dir);
12544
12545     if (IN_LEV_FIELD(xx, yy) &&
12546         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
12547         (direction_old & dir) &&
12548         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12549       direction_new |= dir;
12550   }
12551
12552   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
12553 }
12554
12555 static int getClosedPillar(int x, int y)
12556 {
12557   struct XY *xy = xy_directions;
12558   int element_old = IntelliDrawBuffer[x][y];
12559   int direction_old = getOpenDirectionFromPillar(element_old);
12560   int direction_new = MV_NONE;
12561   int i;
12562
12563   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12564   {
12565     int xx = x + xy[i].x;
12566     int yy = y + xy[i].y;
12567     int dir = MV_DIR_FROM_BIT(i);
12568     int dir_opposite = MV_DIR_OPPOSITE(dir);
12569
12570     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
12571         (direction_old & dir) &&
12572         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12573       direction_new |= dir;
12574   }
12575
12576   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
12577 }
12578
12579 static int getClosedSteel2(int x, int y)
12580 {
12581   struct XY *xy = xy_directions;
12582   int element_old = IntelliDrawBuffer[x][y];
12583   int direction_old = getOpenDirectionFromSteel2(element_old);
12584   int direction_new = MV_NONE;
12585   int i;
12586
12587   for (i = 0; i < NUM_DIRECTIONS; i++)
12588   {
12589     int xx = x + xy[i].x;
12590     int yy = y + xy[i].y;
12591     int dir = MV_DIR_FROM_BIT(i);
12592     int dir_opposite = MV_DIR_OPPOSITE(dir);
12593
12594     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
12595         (direction_old & dir) &&
12596         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12597       direction_new |= dir;
12598   }
12599
12600   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
12601 }
12602
12603 static int getClosedChip(int x, int y)
12604 {
12605   struct XY *xy = xy_directions;
12606   int element_old = IntelliDrawBuffer[x][y];
12607   int direction_old = getOpenDirectionFromChip(element_old);
12608   int direction_new = MV_NONE;
12609   int i;
12610
12611   for (i = 0; i < NUM_DIRECTIONS; i++)
12612   {
12613     int xx = x + xy[i].x;
12614     int yy = y + xy[i].y;
12615     int dir = MV_DIR_FROM_BIT(i);
12616     int dir_opposite = MV_DIR_OPPOSITE(dir);
12617
12618     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
12619         (direction_old & dir) &&
12620         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12621       direction_new |= dir;
12622   }
12623
12624   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
12625 }
12626
12627 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
12628                                 boolean change_level)
12629 {
12630   int sx = x - level_xpos;
12631   int sy = y - level_ypos;
12632   int old_element = Tile[x][y];
12633   int new_element = element;
12634   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
12635   boolean draw_masked = FALSE;
12636
12637   if (IS_MM_WALL_EDITOR(element))
12638   {
12639     element = map_mm_wall_element_editor(element) | new_bitmask;
12640
12641     if (IS_MM_WALL(old_element))
12642       element |= MM_WALL_BITS(old_element);
12643
12644     if (!change_level)
12645       draw_masked = TRUE;
12646   }
12647   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
12648   {
12649     int element_changed = old_element & ~new_bitmask;
12650
12651     if (MM_WALL_BITS(element_changed) != 0)
12652       element = element_changed;
12653   }
12654
12655   IntelliDrawBuffer[x][y] = element;
12656
12657   if (change_level)
12658     Tile[x][y] = element;
12659
12660   if (IN_ED_FIELD(sx, sy))
12661   {
12662     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
12663       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
12664     else if (draw_masked)
12665       DrawEditorElementThruMask(sx, sy, element);
12666     else
12667       DrawEditorElement(sx, sy, element);
12668   }
12669 }
12670
12671 static void SetElementSimple(int x, int y, int element, boolean change_level)
12672 {
12673   SetElementSimpleExt(x, y, 0, 0, element, change_level);
12674 }
12675
12676 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
12677                                            int x2, int y2, int *element2,
12678                                            int (*close_function)(int, int),
12679                                            boolean change_level)
12680 {
12681   // set neighbour elements to newly determined connections
12682   SetElementSimple(x1, y1, *element1, change_level);
12683   SetElementSimple(x2, y2, *element2, change_level);
12684
12685   // remove all open connections of neighbour elements
12686   *element1 = close_function(x1, y1);
12687   *element2 = close_function(x2, y2);
12688
12689   // set neighbour elements to new, minimized connections
12690   SetElementSimple(x1, y1, *element1, change_level);
12691   SetElementSimple(x2, y2, *element2, change_level);
12692 }
12693
12694 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
12695                                   boolean change_level, int button)
12696 {
12697   struct XY *xy = xy_directions;
12698   static int last_x = -1;
12699   static int last_y = -1;
12700
12701   if (new_element == EL_UNDEFINED)
12702   {
12703     last_x = -1;
12704     last_y = -1;
12705
12706     return;
12707   }
12708
12709   int old_element = IntelliDrawBuffer[x][y];
12710
12711   if (IS_TUBE(new_element))
12712   {
12713     int last_element_new = EL_UNDEFINED;
12714     int direction = MV_NONE;
12715     int i;
12716
12717     // if old element is of same kind, keep all existing directions
12718     if (IS_TUBE(old_element))
12719       direction |= getOpenDirectionFromTube(old_element);
12720
12721     for (i = 0; i < NUM_DIRECTIONS; i++)
12722     {
12723       int xx = x + xy[i].x;
12724       int yy = y + xy[i].y;
12725
12726       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12727           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
12728       {
12729         int dir = MV_DIR_FROM_BIT(i);
12730         int dir_opposite = MV_DIR_OPPOSITE(dir);
12731         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12732         int last_direction_old = getOpenDirectionFromTube(last_element_old);
12733         int last_direction_new = last_direction_old | dir_opposite;
12734
12735         last_element_new = getTubeFromOpenDirection(last_direction_new);
12736
12737         direction |= dir;
12738       }
12739     }
12740
12741     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
12742
12743     if (last_element_new != EL_UNDEFINED)
12744       MergeAndCloseNeighbourElements(x, y, &new_element,
12745                                      last_x, last_y, &last_element_new,
12746                                      getClosedTube, change_level);
12747   }
12748   else if (IS_BELT(new_element))
12749   {
12750     int belt_nr = getBeltNrFromBeltElement(new_element);
12751     int last_element_new = EL_UNDEFINED;
12752     int direction = MV_NONE;
12753     int i;
12754
12755     // if old element is of same kind, keep all existing directions
12756     if (IS_BELT(old_element))
12757       direction |= getOpenDirectionFromBelt(old_element);
12758
12759     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12760     {
12761       int xx = x + xy[i].x;
12762       int yy = y + xy[i].y;
12763
12764       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12765           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
12766       {
12767         int dir = MV_DIR_FROM_BIT(i);
12768         int dir_opposite = MV_DIR_OPPOSITE(dir);
12769         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12770         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
12771         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
12772         int last_direction_new = last_direction_old | dir_opposite;
12773
12774         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
12775                                                          last_direction_new);
12776         direction |= dir;
12777       }
12778     }
12779
12780     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
12781                                                         new_element);
12782     if (last_element_new != EL_UNDEFINED)
12783       MergeAndCloseNeighbourElements(x, y, &new_element,
12784                                      last_x, last_y, &last_element_new,
12785                                      getClosedBelt, change_level);
12786   }
12787   else if (IS_ACID_POOL_OR_ACID(new_element))
12788   {
12789     int last_element_new = EL_UNDEFINED;
12790     int direction = MV_NONE;
12791     int i;
12792
12793     // if old element is of same kind, keep all existing directions
12794     if (IS_ACID_POOL_OR_ACID(old_element))
12795       direction |= getOpenDirectionFromPool(old_element);
12796
12797     for (i = 0; i < NUM_DIRECTIONS; i++)
12798     {
12799       int xx = x + xy[i].x;
12800       int yy = y + xy[i].y;
12801
12802       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12803           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
12804       {
12805         int dir = MV_DIR_FROM_BIT(i);
12806         int dir_opposite = MV_DIR_OPPOSITE(dir);
12807         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12808         int last_direction_old = getOpenDirectionFromPool(last_element_old);
12809         int last_direction_new = last_direction_old | dir_opposite;
12810
12811         last_element_new = getPoolFromOpenDirection(last_direction_new);
12812
12813         direction |= dir;
12814       }
12815     }
12816
12817     // special corrections needed for intuitively correct acid pool drawing
12818     if (last_element_new == EL_EMPTY)
12819       last_element_new = new_element;
12820     else if (last_element_new != EL_UNDEFINED)
12821       new_element = last_element_new;
12822
12823     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
12824
12825     if (last_element_new != EL_UNDEFINED)
12826       MergeAndCloseNeighbourElements(x, y, &new_element,
12827                                      last_x, last_y, &last_element_new,
12828                                      getClosedPool, change_level);
12829   }
12830   else if (IS_EMC_PILLAR(new_element))
12831   {
12832     int last_element_new = EL_UNDEFINED;
12833     int direction = MV_NONE;
12834     int i;
12835
12836     // if old element is of same kind, keep all existing directions
12837     if (IS_EMC_PILLAR(old_element))
12838       direction |= getOpenDirectionFromPillar(old_element);
12839
12840     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12841     {
12842       int xx = x + xy[i].x;
12843       int yy = y + xy[i].y;
12844
12845       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12846           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
12847       {
12848         int dir = MV_DIR_FROM_BIT(i);
12849         int dir_opposite = MV_DIR_OPPOSITE(dir);
12850         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12851         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
12852         int last_direction_new = last_direction_old | dir_opposite;
12853
12854         last_element_new = getPillarFromOpenDirection(last_direction_new);
12855
12856         direction |= dir;
12857       }
12858     }
12859
12860     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
12861
12862     if (last_element_new != EL_UNDEFINED)
12863       MergeAndCloseNeighbourElements(x, y, &new_element,
12864                                      last_x, last_y, &last_element_new,
12865                                      getClosedPillar, change_level);
12866   }
12867   else if (IS_DC_STEELWALL_2(new_element))
12868   {
12869     int last_element_new = EL_UNDEFINED;
12870     int direction = MV_NONE;
12871     int i;
12872
12873     // if old element is of same kind, keep all existing directions
12874     if (IS_DC_STEELWALL_2(old_element))
12875       direction |= getOpenDirectionFromSteel2(old_element);
12876
12877     for (i = 0; i < NUM_DIRECTIONS; i++)
12878     {
12879       int xx = x + xy[i].x;
12880       int yy = y + xy[i].y;
12881
12882       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12883           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
12884       {
12885         int dir = MV_DIR_FROM_BIT(i);
12886         int dir_opposite = MV_DIR_OPPOSITE(dir);
12887         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12888         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
12889         int last_direction_new = last_direction_old | dir_opposite;
12890
12891         last_element_new = getSteel2FromOpenDirection(last_direction_new);
12892
12893         direction |= dir;
12894       }
12895     }
12896
12897     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
12898
12899     if (last_element_new != EL_UNDEFINED)
12900       MergeAndCloseNeighbourElements(x, y, &new_element,
12901                                      last_x, last_y, &last_element_new,
12902                                      getClosedSteel2, change_level);
12903   }
12904   else if (IS_SP_CHIP(new_element))
12905   {
12906     int last_element_new = EL_UNDEFINED;
12907     int direction = MV_NONE;
12908     int i;
12909
12910     // (do not keep existing directions, regardless of kind of old element)
12911
12912     for (i = 0; i < NUM_DIRECTIONS; i++)
12913     {
12914       int xx = x + xy[i].x;
12915       int yy = y + xy[i].y;
12916
12917       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12918           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
12919       {
12920         int dir = MV_DIR_FROM_BIT(i);
12921         int dir_opposite = MV_DIR_OPPOSITE(dir);
12922         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12923         int last_direction_old = getOpenDirectionFromChip(last_element_old);
12924         int last_direction_new = last_direction_old | dir_opposite;
12925
12926         if (last_direction_old == MV_NONE)
12927         {
12928           last_element_new = getChipFromOpenDirection(last_direction_new);
12929           direction |= dir;
12930         }
12931         else if (last_direction_old & (dir | dir_opposite))
12932         {
12933           direction |= MV_DIR_OPPOSITE(last_direction_old);
12934         }
12935         else
12936         {
12937           direction |= MV_DIR_OPPOSITE(dir);
12938         }
12939       }
12940     }
12941
12942     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
12943
12944     if (last_element_new != EL_UNDEFINED)
12945       MergeAndCloseNeighbourElements(x, y, &new_element,
12946                                      last_x, last_y, &last_element_new,
12947                                      getClosedChip, change_level);
12948   }
12949   else if (IS_SP_HARDWARE_BASE(new_element))
12950   {
12951     int nr = GetSimpleRandom(6);
12952
12953     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
12954                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
12955                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
12956                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
12957                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
12958   }
12959   else if (new_element == EL_SP_HARDWARE_GREEN ||
12960            new_element == EL_SP_HARDWARE_BLUE ||
12961            new_element == EL_SP_HARDWARE_RED)
12962   {
12963     int nr = GetSimpleRandom(3);
12964
12965     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
12966                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
12967   }
12968   else if (IS_GROUP_ELEMENT(new_element))
12969   {
12970     boolean connected_drawing = FALSE;
12971     int i;
12972
12973     for (i = 0; i < NUM_DIRECTIONS; i++)
12974     {
12975       int xx = x + xy[i].x;
12976       int yy = y + xy[i].y;
12977
12978       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12979           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
12980         connected_drawing = TRUE;
12981     }
12982
12983     if (!connected_drawing)
12984       ResolveGroupElement(new_element);
12985
12986     new_element = GetElementFromGroupElement(new_element);
12987   }
12988   else if (IS_BELT_SWITCH(old_element))
12989   {
12990     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
12991     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
12992
12993     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
12994                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
12995
12996     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
12997   }
12998   else
12999   {
13000     static int swappable_elements[][2] =
13001     {
13002       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
13003       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
13004       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
13005       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
13006       { EL_EMERALD,                     EL_WALL_EMERALD                 },
13007       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
13008       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
13009       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
13010       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
13011       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
13012       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
13013       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
13014       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
13015       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
13016       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
13017       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
13018       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
13019       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
13020       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
13021       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
13022       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
13023       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
13024       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
13025       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
13026       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
13027       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
13028       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
13029       { EL_PEARL,                       EL_WALL_PEARL                   },
13030       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
13031       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
13032       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
13033       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
13034       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
13035       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
13036       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
13037       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
13038       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
13039       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
13040       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
13041       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
13042       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
13043       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
13044       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
13045       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
13046
13047       { -1,                             -1                              },
13048     };
13049     static int rotatable_elements_4[][4] =
13050     {
13051       {
13052         EL_BUG_UP,
13053         EL_BUG_RIGHT,
13054         EL_BUG_DOWN,
13055         EL_BUG_LEFT
13056       },
13057       {
13058         EL_SPACESHIP_UP,
13059         EL_SPACESHIP_RIGHT,
13060         EL_SPACESHIP_DOWN,
13061         EL_SPACESHIP_LEFT
13062       },
13063       {
13064         EL_BD_BUTTERFLY_UP,
13065         EL_BD_BUTTERFLY_RIGHT,
13066         EL_BD_BUTTERFLY_DOWN,
13067         EL_BD_BUTTERFLY_LEFT
13068       },
13069       {
13070         EL_BD_FIREFLY_UP,
13071         EL_BD_FIREFLY_RIGHT,
13072         EL_BD_FIREFLY_DOWN,
13073         EL_BD_FIREFLY_LEFT
13074       },
13075       {
13076         EL_PACMAN_UP,
13077         EL_PACMAN_RIGHT,
13078         EL_PACMAN_DOWN,
13079         EL_PACMAN_LEFT
13080       },
13081       {
13082         EL_YAMYAM_UP,
13083         EL_YAMYAM_RIGHT,
13084         EL_YAMYAM_DOWN,
13085         EL_YAMYAM_LEFT
13086       },
13087       {
13088         EL_ARROW_UP,
13089         EL_ARROW_RIGHT,
13090         EL_ARROW_DOWN,
13091         EL_ARROW_LEFT
13092       },
13093       {
13094         EL_SP_PORT_UP,
13095         EL_SP_PORT_RIGHT,
13096         EL_SP_PORT_DOWN,
13097         EL_SP_PORT_LEFT
13098       },
13099       {
13100         EL_SP_GRAVITY_PORT_UP,
13101         EL_SP_GRAVITY_PORT_RIGHT,
13102         EL_SP_GRAVITY_PORT_DOWN,
13103         EL_SP_GRAVITY_PORT_LEFT
13104       },
13105       {
13106         EL_SP_GRAVITY_ON_PORT_UP,
13107         EL_SP_GRAVITY_ON_PORT_RIGHT,
13108         EL_SP_GRAVITY_ON_PORT_DOWN,
13109         EL_SP_GRAVITY_ON_PORT_LEFT
13110       },
13111       {
13112         EL_SP_GRAVITY_OFF_PORT_UP,
13113         EL_SP_GRAVITY_OFF_PORT_RIGHT,
13114         EL_SP_GRAVITY_OFF_PORT_DOWN,
13115         EL_SP_GRAVITY_OFF_PORT_LEFT
13116       },
13117       {
13118         EL_MOLE_UP,
13119         EL_MOLE_RIGHT,
13120         EL_MOLE_DOWN,
13121         EL_MOLE_LEFT
13122       },
13123       {
13124         EL_BALLOON_SWITCH_UP,
13125         EL_BALLOON_SWITCH_RIGHT,
13126         EL_BALLOON_SWITCH_DOWN,
13127         EL_BALLOON_SWITCH_LEFT
13128       },
13129       {
13130         EL_MM_MCDUFFIN_UP,
13131         EL_MM_MCDUFFIN_RIGHT,
13132         EL_MM_MCDUFFIN_DOWN,
13133         EL_MM_MCDUFFIN_LEFT
13134       },
13135       {
13136         EL_MM_MIRROR_FIXED_1,
13137         EL_MM_MIRROR_FIXED_4,
13138         EL_MM_MIRROR_FIXED_3,
13139         EL_MM_MIRROR_FIXED_2
13140       },
13141       {
13142         EL_MM_STEEL_GRID_FIXED_1,
13143         EL_MM_STEEL_GRID_FIXED_4,
13144         EL_MM_STEEL_GRID_FIXED_2,
13145         EL_MM_STEEL_GRID_FIXED_3
13146       },
13147       {
13148         EL_MM_WOODEN_GRID_FIXED_1,
13149         EL_MM_WOODEN_GRID_FIXED_4,
13150         EL_MM_WOODEN_GRID_FIXED_2,
13151         EL_MM_WOODEN_GRID_FIXED_3
13152       },
13153       {
13154         EL_MM_POLARIZER_CROSS_1,
13155         EL_MM_POLARIZER_CROSS_4,
13156         EL_MM_POLARIZER_CROSS_3,
13157         EL_MM_POLARIZER_CROSS_2
13158       },
13159       {
13160         EL_MM_PACMAN_UP,
13161         EL_MM_PACMAN_RIGHT,
13162         EL_MM_PACMAN_DOWN,
13163         EL_MM_PACMAN_LEFT
13164       },
13165       {
13166         EL_DF_LASER_UP,
13167         EL_DF_LASER_RIGHT,
13168         EL_DF_LASER_DOWN,
13169         EL_DF_LASER_LEFT
13170       },
13171       {
13172         EL_DF_RECEIVER_UP,
13173         EL_DF_RECEIVER_RIGHT,
13174         EL_DF_RECEIVER_DOWN,
13175         EL_DF_RECEIVER_LEFT
13176       },
13177       {
13178         EL_DF_SLOPE_1,
13179         EL_DF_SLOPE_4,
13180         EL_DF_SLOPE_3,
13181         EL_DF_SLOPE_2
13182       },
13183
13184       {
13185         -1,
13186       },
13187     };
13188     static int rotatable_elements_8[][8] =
13189     {
13190       {
13191         EL_DF_STEEL_GRID_FIXED_1,
13192         EL_DF_STEEL_GRID_FIXED_8,
13193         EL_DF_STEEL_GRID_FIXED_7,
13194         EL_DF_STEEL_GRID_FIXED_6,
13195         EL_DF_STEEL_GRID_FIXED_5,
13196         EL_DF_STEEL_GRID_FIXED_4,
13197         EL_DF_STEEL_GRID_FIXED_3,
13198         EL_DF_STEEL_GRID_FIXED_2
13199       },
13200       {
13201         EL_DF_WOODEN_GRID_FIXED_1,
13202         EL_DF_WOODEN_GRID_FIXED_8,
13203         EL_DF_WOODEN_GRID_FIXED_7,
13204         EL_DF_WOODEN_GRID_FIXED_6,
13205         EL_DF_WOODEN_GRID_FIXED_5,
13206         EL_DF_WOODEN_GRID_FIXED_4,
13207         EL_DF_WOODEN_GRID_FIXED_3,
13208         EL_DF_WOODEN_GRID_FIXED_2
13209       },
13210       {
13211         EL_DF_STEEL_GRID_ROTATING_1,
13212         EL_DF_STEEL_GRID_ROTATING_8,
13213         EL_DF_STEEL_GRID_ROTATING_7,
13214         EL_DF_STEEL_GRID_ROTATING_6,
13215         EL_DF_STEEL_GRID_ROTATING_5,
13216         EL_DF_STEEL_GRID_ROTATING_4,
13217         EL_DF_STEEL_GRID_ROTATING_3,
13218         EL_DF_STEEL_GRID_ROTATING_2
13219       },
13220       {
13221         EL_DF_WOODEN_GRID_ROTATING_1,
13222         EL_DF_WOODEN_GRID_ROTATING_8,
13223         EL_DF_WOODEN_GRID_ROTATING_7,
13224         EL_DF_WOODEN_GRID_ROTATING_6,
13225         EL_DF_WOODEN_GRID_ROTATING_5,
13226         EL_DF_WOODEN_GRID_ROTATING_4,
13227         EL_DF_WOODEN_GRID_ROTATING_3,
13228         EL_DF_WOODEN_GRID_ROTATING_2
13229       },
13230
13231       {
13232         -1,
13233       },
13234     };
13235     static int rotatable_elements_16[][16] =
13236     {
13237       {
13238         EL_MM_MIRROR_1,
13239         EL_MM_MIRROR_16,
13240         EL_MM_MIRROR_15,
13241         EL_MM_MIRROR_14,
13242         EL_MM_MIRROR_13,
13243         EL_MM_MIRROR_12,
13244         EL_MM_MIRROR_11,
13245         EL_MM_MIRROR_10,
13246         EL_MM_MIRROR_9,
13247         EL_MM_MIRROR_8,
13248         EL_MM_MIRROR_7,
13249         EL_MM_MIRROR_6,
13250         EL_MM_MIRROR_5,
13251         EL_MM_MIRROR_4,
13252         EL_MM_MIRROR_3,
13253         EL_MM_MIRROR_2
13254       },
13255       {
13256         EL_MM_TELEPORTER_5,
13257         EL_MM_TELEPORTER_4,
13258         EL_MM_TELEPORTER_3,
13259         EL_MM_TELEPORTER_2,
13260         EL_MM_TELEPORTER_1,
13261         EL_MM_TELEPORTER_16,
13262         EL_MM_TELEPORTER_15,
13263         EL_MM_TELEPORTER_14,
13264         EL_MM_TELEPORTER_13,
13265         EL_MM_TELEPORTER_12,
13266         EL_MM_TELEPORTER_11,
13267         EL_MM_TELEPORTER_10,
13268         EL_MM_TELEPORTER_9,
13269         EL_MM_TELEPORTER_8,
13270         EL_MM_TELEPORTER_7,
13271         EL_MM_TELEPORTER_6
13272       },
13273       {
13274         EL_MM_TELEPORTER_RED_5,
13275         EL_MM_TELEPORTER_RED_4,
13276         EL_MM_TELEPORTER_RED_3,
13277         EL_MM_TELEPORTER_RED_2,
13278         EL_MM_TELEPORTER_RED_1,
13279         EL_MM_TELEPORTER_RED_16,
13280         EL_MM_TELEPORTER_RED_15,
13281         EL_MM_TELEPORTER_RED_14,
13282         EL_MM_TELEPORTER_RED_13,
13283         EL_MM_TELEPORTER_RED_12,
13284         EL_MM_TELEPORTER_RED_11,
13285         EL_MM_TELEPORTER_RED_10,
13286         EL_MM_TELEPORTER_RED_9,
13287         EL_MM_TELEPORTER_RED_8,
13288         EL_MM_TELEPORTER_RED_7,
13289         EL_MM_TELEPORTER_RED_6
13290       },
13291       {
13292         EL_MM_TELEPORTER_YELLOW_5,
13293         EL_MM_TELEPORTER_YELLOW_4,
13294         EL_MM_TELEPORTER_YELLOW_3,
13295         EL_MM_TELEPORTER_YELLOW_2,
13296         EL_MM_TELEPORTER_YELLOW_1,
13297         EL_MM_TELEPORTER_YELLOW_16,
13298         EL_MM_TELEPORTER_YELLOW_15,
13299         EL_MM_TELEPORTER_YELLOW_14,
13300         EL_MM_TELEPORTER_YELLOW_13,
13301         EL_MM_TELEPORTER_YELLOW_12,
13302         EL_MM_TELEPORTER_YELLOW_11,
13303         EL_MM_TELEPORTER_YELLOW_10,
13304         EL_MM_TELEPORTER_YELLOW_9,
13305         EL_MM_TELEPORTER_YELLOW_8,
13306         EL_MM_TELEPORTER_YELLOW_7,
13307         EL_MM_TELEPORTER_YELLOW_6
13308       },
13309       {
13310         EL_MM_TELEPORTER_GREEN_5,
13311         EL_MM_TELEPORTER_GREEN_4,
13312         EL_MM_TELEPORTER_GREEN_3,
13313         EL_MM_TELEPORTER_GREEN_2,
13314         EL_MM_TELEPORTER_GREEN_1,
13315         EL_MM_TELEPORTER_GREEN_16,
13316         EL_MM_TELEPORTER_GREEN_15,
13317         EL_MM_TELEPORTER_GREEN_14,
13318         EL_MM_TELEPORTER_GREEN_13,
13319         EL_MM_TELEPORTER_GREEN_12,
13320         EL_MM_TELEPORTER_GREEN_11,
13321         EL_MM_TELEPORTER_GREEN_10,
13322         EL_MM_TELEPORTER_GREEN_9,
13323         EL_MM_TELEPORTER_GREEN_8,
13324         EL_MM_TELEPORTER_GREEN_7,
13325         EL_MM_TELEPORTER_GREEN_6
13326       },
13327       {
13328         EL_MM_TELEPORTER_BLUE_5,
13329         EL_MM_TELEPORTER_BLUE_4,
13330         EL_MM_TELEPORTER_BLUE_3,
13331         EL_MM_TELEPORTER_BLUE_2,
13332         EL_MM_TELEPORTER_BLUE_1,
13333         EL_MM_TELEPORTER_BLUE_16,
13334         EL_MM_TELEPORTER_BLUE_15,
13335         EL_MM_TELEPORTER_BLUE_14,
13336         EL_MM_TELEPORTER_BLUE_13,
13337         EL_MM_TELEPORTER_BLUE_12,
13338         EL_MM_TELEPORTER_BLUE_11,
13339         EL_MM_TELEPORTER_BLUE_10,
13340         EL_MM_TELEPORTER_BLUE_9,
13341         EL_MM_TELEPORTER_BLUE_8,
13342         EL_MM_TELEPORTER_BLUE_7,
13343         EL_MM_TELEPORTER_BLUE_6
13344       },
13345       {
13346         EL_MM_POLARIZER_1,
13347         EL_MM_POLARIZER_16,
13348         EL_MM_POLARIZER_15,
13349         EL_MM_POLARIZER_14,
13350         EL_MM_POLARIZER_13,
13351         EL_MM_POLARIZER_12,
13352         EL_MM_POLARIZER_11,
13353         EL_MM_POLARIZER_10,
13354         EL_MM_POLARIZER_9,
13355         EL_MM_POLARIZER_8,
13356         EL_MM_POLARIZER_7,
13357         EL_MM_POLARIZER_6,
13358         EL_MM_POLARIZER_5,
13359         EL_MM_POLARIZER_4,
13360         EL_MM_POLARIZER_3,
13361         EL_MM_POLARIZER_2
13362       },
13363       {
13364         EL_DF_MIRROR_1,
13365         EL_DF_MIRROR_16,
13366         EL_DF_MIRROR_15,
13367         EL_DF_MIRROR_14,
13368         EL_DF_MIRROR_13,
13369         EL_DF_MIRROR_12,
13370         EL_DF_MIRROR_11,
13371         EL_DF_MIRROR_10,
13372         EL_DF_MIRROR_9,
13373         EL_DF_MIRROR_8,
13374         EL_DF_MIRROR_7,
13375         EL_DF_MIRROR_6,
13376         EL_DF_MIRROR_5,
13377         EL_DF_MIRROR_4,
13378         EL_DF_MIRROR_3,
13379         EL_DF_MIRROR_2
13380       },
13381       {
13382         EL_DF_MIRROR_ROTATING_1,
13383         EL_DF_MIRROR_ROTATING_16,
13384         EL_DF_MIRROR_ROTATING_15,
13385         EL_DF_MIRROR_ROTATING_14,
13386         EL_DF_MIRROR_ROTATING_13,
13387         EL_DF_MIRROR_ROTATING_12,
13388         EL_DF_MIRROR_ROTATING_11,
13389         EL_DF_MIRROR_ROTATING_10,
13390         EL_DF_MIRROR_ROTATING_9,
13391         EL_DF_MIRROR_ROTATING_8,
13392         EL_DF_MIRROR_ROTATING_7,
13393         EL_DF_MIRROR_ROTATING_6,
13394         EL_DF_MIRROR_ROTATING_5,
13395         EL_DF_MIRROR_ROTATING_4,
13396         EL_DF_MIRROR_ROTATING_3,
13397         EL_DF_MIRROR_ROTATING_2
13398       },
13399       {
13400         EL_DF_MIRROR_FIXED_1,
13401         EL_DF_MIRROR_FIXED_16,
13402         EL_DF_MIRROR_FIXED_15,
13403         EL_DF_MIRROR_FIXED_14,
13404         EL_DF_MIRROR_FIXED_13,
13405         EL_DF_MIRROR_FIXED_12,
13406         EL_DF_MIRROR_FIXED_11,
13407         EL_DF_MIRROR_FIXED_10,
13408         EL_DF_MIRROR_FIXED_9,
13409         EL_DF_MIRROR_FIXED_8,
13410         EL_DF_MIRROR_FIXED_7,
13411         EL_DF_MIRROR_FIXED_6,
13412         EL_DF_MIRROR_FIXED_5,
13413         EL_DF_MIRROR_FIXED_4,
13414         EL_DF_MIRROR_FIXED_3,
13415         EL_DF_MIRROR_FIXED_2
13416       },
13417
13418       {
13419         -1,
13420       },
13421     };
13422     int i, j;
13423
13424     for (i = 0; swappable_elements[i][0] != -1; i++)
13425     {
13426       int element1 = swappable_elements[i][0];
13427       int element2 = swappable_elements[i][1];
13428
13429       if (old_element == element1 || old_element == element2)
13430         new_element = (old_element == element1 ? element2 : element1);
13431     }
13432
13433     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
13434     {
13435       for (j = 0; j < 4; j++)
13436       {
13437         int element = rotatable_elements_4[i][j];
13438
13439         if (old_element == element)
13440           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
13441                          button == 2 ? rotatable_elements_4[i][0]           :
13442                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
13443                          old_element);
13444       }
13445     }
13446
13447     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
13448     {
13449       for (j = 0; j < 8; j++)
13450       {
13451         int element = rotatable_elements_8[i][j];
13452
13453         if (old_element == element)
13454           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
13455                          button == 2 ? rotatable_elements_8[i][0]           :
13456                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
13457                          old_element);
13458       }
13459     }
13460
13461     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
13462     {
13463       for (j = 0; j < 16; j++)
13464       {
13465         int element = rotatable_elements_16[i][j];
13466
13467         if (old_element == element)
13468           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
13469                          button == 2 ? rotatable_elements_16[i][0]             :
13470                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
13471                          old_element);
13472       }
13473     }
13474
13475     if (old_element != new_element)
13476     {
13477       int max_infotext_len = getMaxInfoTextLength();
13478       char infotext[MAX_OUTPUT_LINESIZE + 1];
13479
13480       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
13481       infotext[max_infotext_len] = '\0';
13482
13483       ClearEditorGadgetInfoText();
13484
13485       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
13486                 infotext);
13487     }
13488   }
13489
13490   if (IS_MM_WALL_EDITOR(new_element))
13491     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
13492   else
13493     SetElementSimple(x, y, new_element, change_level);
13494
13495   last_x = x;
13496   last_y = y;
13497 }
13498
13499 static void ResetIntelliDraw(void)
13500 {
13501   int x, y;
13502
13503   for (x = 0; x < lev_fieldx; x++)
13504     for (y = 0; y < lev_fieldy; y++)
13505       IntelliDrawBuffer[x][y] = Tile[x][y];
13506
13507   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
13508 }
13509
13510 static boolean draw_mode_hires = FALSE;
13511
13512 static boolean isHiresTileElement(int element)
13513 {
13514   return (IS_MM_WALL(element)        || element == EL_EMPTY);
13515 }
13516
13517 static boolean isHiresDrawElement(int element)
13518 {
13519   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
13520 }
13521
13522 static int numHiresTiles(int element)
13523 {
13524   if (IS_MM_WALL(element))
13525     return get_number_of_bits(MM_WALL_BITS(element));
13526
13527   return 1;
13528 }
13529
13530 static void SetDrawModeHiRes(int element)
13531 {
13532   draw_mode_hires =
13533     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13534      isHiresDrawElement(element));
13535 }
13536
13537 static boolean getDrawModeHiRes(void)
13538 {
13539   return draw_mode_hires;
13540 }
13541
13542 static int getLoResScreenPos(int pos)
13543 {
13544   return (getDrawModeHiRes() ? pos / 2 : pos);
13545 }
13546
13547 static int getLoResScreenMod(int pos)
13548 {
13549   return (getDrawModeHiRes() ? pos % 2 : 0);
13550 }
13551
13552 static void SetElementExt(int x, int y, int dx, int dy, int element,
13553                           boolean change_level, int button)
13554 {
13555   if (element < 0)
13556     SetElementSimple(x, y, Tile[x][y], change_level);
13557   else if (GetKeyModState() & KMOD_Shift)
13558     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
13559   else
13560     SetElementSimpleExt(x, y, dx, dy, element, change_level);
13561 }
13562
13563 static void SetElement(int x, int y, int element)
13564 {
13565   SetElementExt(x, y, 0, 0, element, TRUE, -1);
13566 }
13567
13568 static void SetElementButton(int x, int y, int dx, int dy, int element,
13569                              int button)
13570 {
13571   SetElementExt(x, y, dx, dy, element, TRUE, button);
13572 }
13573
13574 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
13575 {
13576   int lx = getLoResScreenPos(sx2) + level_xpos;
13577   int ly = getLoResScreenPos(sy2) + level_ypos;
13578   int dx = getLoResScreenMod(sx2);
13579   int dy = getLoResScreenMod(sy2);
13580
13581   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
13582 }
13583
13584 static void SetLevelElementHiRes(int lx2, int ly2, int element)
13585 {
13586   int lx = lx2 / 2;
13587   int ly = ly2 / 2;
13588   int dx = lx2 % 2;
13589   int dy = ly2 % 2;
13590
13591   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
13592 }
13593
13594 static int getLevelElementHiRes(int lx2, int ly2)
13595 {
13596   int lx = lx2 / 2;
13597   int ly = ly2 / 2;
13598   int dx = lx2 % 2;
13599   int dy = ly2 % 2;
13600   int element = Tile[lx][ly];
13601   unsigned int bitmask = (dx + 1) << (dy * 2);
13602
13603   if (IS_MM_WALL(element))
13604   {
13605     if (element & bitmask)
13606       return map_mm_wall_element(element);
13607     else
13608       return EL_EMPTY;
13609   }
13610
13611   return element;
13612 }
13613
13614 static void DrawLineElement(int x, int y, int element, boolean change_level)
13615 {
13616   SetElementHiRes(x, y, element, change_level);
13617 }
13618
13619 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
13620                      int element, boolean change_level)
13621 {
13622   int xsize = ABS(to_x - from_x);
13623   int ysize = ABS(to_y - from_y);
13624   int dx = (to_x < from_x ? -1 : +1);
13625   int dy = (to_y < from_y ? -1 : +1);
13626   int i;
13627
13628   if (from_y == to_y)                   // horizontal line
13629   {
13630     for (i = 0; i <= xsize; i++)
13631       DrawLineElement(from_x + i * dx, from_y, element, change_level);
13632   }
13633   else if (from_x == to_x)              // vertical line
13634   {
13635     for (i = 0; i <= ysize; i++)
13636       DrawLineElement(from_x, from_y + i * dy, element, change_level);
13637   }
13638   else                                  // diagonal line
13639   {
13640     if (ysize < xsize)                  // a < 1
13641     {
13642       float a = (float)ysize / (float)xsize;
13643
13644       for (i = 0; i <= xsize; i++)
13645       {
13646         int x = dx * i;
13647         int y = dy * (int)(a * i + 0.5);
13648
13649         DrawLineElement(from_x + x, from_y + y, element, change_level);
13650       }
13651     }
13652     else                                // a >= 1
13653     {
13654       float a = (float)xsize / (float)ysize;
13655
13656       for (i = 0; i <= ysize; i++)
13657       {
13658         int x = dx * (int)(a * i + 0.5);
13659         int y = dy * i;
13660
13661         DrawLineElement(from_x + x, from_y + y, element, change_level);
13662       }
13663     }
13664   }
13665 }
13666
13667 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
13668                     int element, boolean change_level)
13669 {
13670   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
13671   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
13672   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
13673   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
13674 }
13675
13676 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
13677                           int element, boolean change_level)
13678 {
13679   int y;
13680
13681   if (from_y > to_y)
13682     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
13683
13684   for (y = from_y; y <= to_y; y++)
13685     DrawLine(from_x, y, to_x, y, element, change_level);
13686 }
13687
13688 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
13689                        int element, boolean change_level)
13690 {
13691   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
13692   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
13693   int len_x = ABS(to_x - from_x);
13694   int len_y = ABS(to_y - from_y);
13695   int radius, x, y;
13696
13697   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
13698
13699   // not optimal (some points get drawn twice) but simple,
13700   // and fast enough for the few points we are drawing
13701
13702   for (x = 0; x <= radius; x++)
13703   {
13704     int sx, sy, sx2, sy2, lx, ly;
13705
13706     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
13707
13708     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13709     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13710     sx = getLoResScreenPos(sx2);
13711     sy = getLoResScreenPos(sy2);
13712     lx = sx + level_xpos;
13713     ly = sy + level_ypos;
13714
13715     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13716       DrawLineElement(sx2, sy2, element, change_level);
13717   }
13718
13719   for (y = 0; y <= radius; y++)
13720   {
13721     int sx, sy, sx2, sy2, lx, ly;
13722
13723     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
13724
13725     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13726     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13727     sx = getLoResScreenPos(sx2);
13728     sy = getLoResScreenPos(sy2);
13729     lx = sx + level_xpos;
13730     ly = sy + level_ypos;
13731
13732     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13733       DrawLineElement(sx2, sy2, element, change_level);
13734   }
13735 }
13736
13737 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
13738                     int element, boolean change_level)
13739 {
13740   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13741   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13742
13743   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13744 }
13745
13746 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
13747
13748 #if DRAW_CIRCLES_BUTTON_AVAILABLE
13749 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
13750                        int element, boolean change_level)
13751 {
13752   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13753   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13754   int mirror_to_x2 = from_x - (to_x2 - from_x);
13755   int mirror_to_y2 = from_y - (to_y2 - from_y);
13756
13757   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13758   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
13759   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
13760   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element, change_level);
13761 }
13762 #endif
13763
13764 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
13765 {
13766   int from_sx, from_sy;
13767   int to_sx, to_sy;
13768
13769   if (from_x > to_x)
13770     swap_numbers(&from_x, &to_x);
13771
13772   if (from_y > to_y)
13773     swap_numbers(&from_y, &to_y);
13774
13775   from_sx = SX + from_x * ed_tilesize;
13776   from_sy = SY + from_y * ed_tilesize;
13777   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
13778   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
13779
13780   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
13781   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
13782   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
13783   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
13784
13785   if (from_x == to_x && from_y == to_y)
13786     MarkTileDirty(from_x/2, from_y/2);
13787   else
13788     redraw_mask |= REDRAW_FIELD;
13789 }
13790
13791 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
13792                         int element, boolean change_level)
13793 {
13794   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
13795 }
13796
13797 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
13798                        int element, boolean change_level)
13799 {
13800   if (element == -1 || change_level)
13801     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
13802   else
13803     DrawAreaBorder(from_x, from_y, to_x, to_y);
13804 }
13805
13806 // values for CopyBrushExt()
13807 #define CB_AREA_TO_BRUSH                0
13808 #define CB_BRUSH_TO_CURSOR              1
13809 #define CB_BRUSH_TO_LEVEL               2
13810 #define CB_DELETE_OLD_CURSOR            3
13811 #define CB_DUMP_BRUSH                   4
13812 #define CB_DUMP_BRUSH_SMALL             5
13813 #define CB_CLIPBOARD_TO_BRUSH           6
13814 #define CB_BRUSH_TO_CLIPBOARD           7
13815 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
13816 #define CB_UPDATE_BRUSH_POSITION        9
13817 #define CB_FLIP_BRUSH_X                 10
13818 #define CB_FLIP_BRUSH_Y                 11
13819 #define CB_FLIP_BRUSH_XY                12
13820
13821 #define MAX_CB_PART_SIZE        10
13822 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
13823 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
13824 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
13825                                  MAX_CB_NUM_LINES *     \
13826                                  MAX_CB_PART_SIZE)
13827
13828 static int getFlippedTileExt(int map[], int element)
13829 {
13830   int i;
13831
13832   for (i = 0; map[i] != -1; i++)
13833     if (map[i] == element)
13834       return map[i ^ 1];        // get flipped element by flipping LSB of index
13835
13836   return element;
13837 }
13838
13839 static int getFlippedTileX(int element)
13840 {
13841   int map[] =
13842   {
13843     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_RIGHT,
13844     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_RIGHT,
13845     EL_BUG_LEFT,                        EL_BUG_RIGHT,
13846     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_RIGHT,
13847     EL_PACMAN_LEFT,                     EL_PACMAN_RIGHT,
13848     EL_ARROW_LEFT,                      EL_ARROW_RIGHT,
13849     EL_MOLE_LEFT,                       EL_MOLE_RIGHT,
13850     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_RIGHT,
13851     EL_YAMYAM_LEFT,                     EL_YAMYAM_RIGHT,
13852     EL_SP_PORT_LEFT,                    EL_SP_PORT_RIGHT,
13853     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_RIGHT,
13854     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_RIGHT,
13855     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_RIGHT,
13856     EL_CONVEYOR_BELT_1_LEFT,            EL_CONVEYOR_BELT_1_RIGHT,
13857     EL_CONVEYOR_BELT_2_LEFT,            EL_CONVEYOR_BELT_2_RIGHT,
13858     EL_CONVEYOR_BELT_3_LEFT,            EL_CONVEYOR_BELT_3_RIGHT,
13859     EL_CONVEYOR_BELT_4_LEFT,            EL_CONVEYOR_BELT_4_RIGHT,
13860     EL_SPRING_LEFT,                     EL_SPRING_RIGHT,
13861     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_RIGHT,
13862     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_VERTICAL_RIGHT,
13863     EL_TUBE_LEFT_UP,                    EL_TUBE_RIGHT_UP,
13864     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_DOWN,
13865     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_RIGHT,
13866     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_TOPRIGHT,
13867     EL_DC_STEELWALL_1_BOTTOMLEFT,       EL_DC_STEELWALL_1_BOTTOMRIGHT,
13868     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_TOPRIGHT_2,
13869     EL_DC_STEELWALL_1_BOTTOMLEFT_2,     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13870     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_RIGHT,
13871     EL_ACID_POOL_TOPLEFT,               EL_ACID_POOL_TOPRIGHT,
13872     EL_ACID_POOL_BOTTOMLEFT,            EL_ACID_POOL_BOTTOMRIGHT,
13873
13874     -1
13875   };
13876
13877   return getFlippedTileExt(map, element);
13878 }
13879
13880 static int getFlippedTileY(int element)
13881 {
13882   int map[] =
13883   {
13884     EL_BD_BUTTERFLY_UP,                 EL_BD_BUTTERFLY_DOWN,
13885     EL_BD_FIREFLY_UP,                   EL_BD_FIREFLY_DOWN,
13886     EL_BUG_UP,                          EL_BUG_DOWN,
13887     EL_SPACESHIP_UP,                    EL_SPACESHIP_DOWN,
13888     EL_PACMAN_UP,                       EL_PACMAN_DOWN,
13889     EL_ARROW_UP,                        EL_ARROW_DOWN,
13890     EL_MOLE_UP,                         EL_MOLE_DOWN,
13891     EL_BALLOON_SWITCH_UP,               EL_BALLOON_SWITCH_DOWN,
13892     EL_YAMYAM_UP,                       EL_YAMYAM_DOWN,
13893     EL_SP_PORT_UP,                      EL_SP_PORT_DOWN,
13894     EL_SP_GRAVITY_PORT_UP,              EL_SP_GRAVITY_PORT_DOWN,
13895     EL_SP_GRAVITY_ON_PORT_UP,           EL_SP_GRAVITY_ON_PORT_DOWN,
13896     EL_SP_GRAVITY_OFF_PORT_UP,          EL_SP_GRAVITY_OFF_PORT_DOWN,
13897     EL_SP_CHIP_TOP,                     EL_SP_CHIP_BOTTOM,
13898     EL_TUBE_HORIZONTAL_UP,              EL_TUBE_HORIZONTAL_DOWN,
13899     EL_TUBE_LEFT_UP,                    EL_TUBE_LEFT_DOWN,
13900     EL_TUBE_RIGHT_UP,                   EL_TUBE_RIGHT_DOWN,
13901     EL_DC_STEELWALL_1_TOP,              EL_DC_STEELWALL_1_BOTTOM,
13902     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_BOTTOMLEFT,
13903     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMRIGHT,
13904     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13905     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13906     EL_DC_STEELWALL_2_TOP,              EL_DC_STEELWALL_2_BOTTOM,
13907     EL_EMC_WALL_1,                      EL_EMC_WALL_3,
13908
13909     -1
13910   };
13911
13912   return getFlippedTileExt(map, element);
13913 }
13914
13915 static int getFlippedTileXY(int element)
13916 {
13917   int map[] =
13918   {
13919     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_UP,
13920     EL_BD_BUTTERFLY_RIGHT,              EL_BD_BUTTERFLY_DOWN,
13921     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_UP,
13922     EL_BD_FIREFLY_RIGHT,                EL_BD_FIREFLY_DOWN,
13923     EL_BUG_LEFT,                        EL_BUG_UP,
13924     EL_BUG_RIGHT,                       EL_BUG_DOWN,
13925     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_UP,
13926     EL_SPACESHIP_RIGHT,                 EL_SPACESHIP_DOWN,
13927     EL_PACMAN_LEFT,                     EL_PACMAN_UP,
13928     EL_PACMAN_RIGHT,                    EL_PACMAN_DOWN,
13929     EL_ARROW_LEFT,                      EL_ARROW_UP,
13930     EL_ARROW_RIGHT,                     EL_ARROW_DOWN,
13931     EL_MOLE_LEFT,                       EL_MOLE_UP,
13932     EL_MOLE_RIGHT,                      EL_MOLE_DOWN,
13933     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_UP,
13934     EL_BALLOON_SWITCH_RIGHT,            EL_BALLOON_SWITCH_DOWN,
13935     EL_YAMYAM_LEFT,                     EL_YAMYAM_UP,
13936     EL_YAMYAM_RIGHT,                    EL_YAMYAM_DOWN,
13937     EL_SP_PORT_LEFT,                    EL_SP_PORT_UP,
13938     EL_SP_PORT_RIGHT,                   EL_SP_PORT_DOWN,
13939     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_UP,
13940     EL_SP_GRAVITY_PORT_RIGHT,           EL_SP_GRAVITY_PORT_DOWN,
13941     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_UP,
13942     EL_SP_GRAVITY_ON_PORT_RIGHT,        EL_SP_GRAVITY_ON_PORT_DOWN,
13943     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_UP,
13944     EL_SP_GRAVITY_OFF_PORT_RIGHT,       EL_SP_GRAVITY_OFF_PORT_DOWN,
13945     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_TOP,
13946     EL_SP_CHIP_RIGHT,                   EL_SP_CHIP_BOTTOM,
13947     EL_TUBE_VERTICAL,                   EL_TUBE_HORIZONTAL,
13948     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_HORIZONTAL_UP,
13949     EL_TUBE_VERTICAL_RIGHT,             EL_TUBE_HORIZONTAL_DOWN,
13950     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_UP,
13951     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_TOP,
13952     EL_DC_STEELWALL_1_RIGHT,            EL_DC_STEELWALL_1_BOTTOM,
13953     EL_DC_STEELWALL_1_HORIZONTAL,       EL_DC_STEELWALL_1_VERTICAL,
13954     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMLEFT,
13955     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13956     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_TOP,
13957     EL_DC_STEELWALL_2_RIGHT,            EL_DC_STEELWALL_2_BOTTOM,
13958     EL_DC_STEELWALL_2_HORIZONTAL,       EL_DC_STEELWALL_2_VERTICAL,
13959     EL_EXPANDABLE_WALL_HORIZONTAL,      EL_EXPANDABLE_WALL_VERTICAL,
13960     EL_EXPANDABLE_STEELWALL_HORIZONTAL, EL_EXPANDABLE_STEELWALL_VERTICAL,
13961
13962     -1
13963   };
13964
13965   return getFlippedTileExt(map, element);
13966 }
13967
13968 static int getFlippedTile(int element, int mode)
13969 {
13970   if (IS_MM_ELEMENT(element))
13971   {
13972     // get MM game element
13973     element = map_element_RND_to_MM(element);
13974
13975     // get flipped game element
13976     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX_MM(element) :
13977                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY_MM(element) :
13978                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY_MM(element) :
13979                element);
13980
13981     // get RND game element again
13982     element = map_element_MM_to_RND(element);
13983   }
13984   else
13985   {
13986     // get flipped game element
13987     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX(element) :
13988                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY(element) :
13989                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY(element) :
13990                element);
13991   }
13992
13993   return element;
13994 }
13995
13996 static void SwapFlippedTiles(short *tile1, short *tile2, int mode)
13997 {
13998   // flip tiles
13999   short tile1_flipped = getFlippedTile(*tile1, mode);
14000   short tile2_flipped = getFlippedTile(*tile2, mode);
14001
14002   // swap tiles
14003   *tile1 = tile2_flipped;
14004   *tile2 = tile1_flipped;
14005 }
14006
14007 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
14008 {
14009   DrawLineElement(sx, sy, element, change_level);
14010 }
14011
14012 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
14013                          int button, int mode)
14014 {
14015   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
14016   static int brush_width, brush_height;
14017   static int last_cursor_x = -1, last_cursor_y = -1;
14018   static boolean delete_old_brush = FALSE;
14019   int new_element = BUTTON_ELEMENT(button);
14020   int x, y;
14021
14022   if (mode == CB_DUMP_BRUSH ||
14023       mode == CB_DUMP_BRUSH_SMALL ||
14024       mode == CB_BRUSH_TO_CLIPBOARD ||
14025       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
14026   {
14027     if (edit_mode != ED_MODE_DRAWING)
14028       return;
14029
14030     char part[MAX_CB_PART_SIZE + 1] = "";
14031     char text[MAX_CB_TEXT_SIZE + 1] = "";
14032     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
14033     int height = (draw_with_brush ? brush_height : lev_fieldy);
14034     char *format = "%s%03d";
14035
14036     for (y = 0; y < height; y++)
14037       for (x = 0; x < width; x++)
14038         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
14039           format = "%s%04d";
14040
14041     for (y = 0; y < height; y++)
14042     {
14043       for (x = 0; x < width; x++)
14044       {
14045         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
14046         char *prefix = (mode == CB_DUMP_BRUSH ||
14047                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
14048
14049         if (element >= NUM_FILE_ELEMENTS)
14050           element = EL_UNKNOWN;
14051
14052         // copy brush to level sketch text buffer for the R'n'D forum:
14053         // - large tiles: `xxx or `xxxx (0x60 ASCII)
14054         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
14055         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
14056         strcat(text, part);
14057       }
14058
14059       strcat(text, "\n");
14060     }
14061
14062     if (mode == CB_BRUSH_TO_CLIPBOARD ||
14063         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
14064       SDL_SetClipboardText(text);
14065     else
14066       Print("%s", text);        // print brush data to console and log file
14067
14068     return;
14069   }
14070
14071   if (mode == CB_CLIPBOARD_TO_BRUSH)
14072   {
14073     if (edit_mode != ED_MODE_DRAWING)
14074       return;
14075
14076     if (!SDL_HasClipboardText())
14077     {
14078       Request("Clipboard is empty!", REQ_CONFIRM);
14079
14080       return;
14081     }
14082
14083     boolean copy_to_brush = (draw_with_brush ||
14084                              drawing_function == GADGET_ID_GRAB_BRUSH);
14085
14086     // this will delete the old brush, if already drawing with a brush
14087     if (copy_to_brush)
14088       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
14089
14090     // initialization is required for "odd" (incomplete) clipboard content
14091     for (x = 0; x < MAX_LEV_FIELDX; x++)
14092       for (y = 0; y < MAX_LEV_FIELDY; y++)
14093         brush_buffer[x][y] = EL_EMPTY;
14094
14095     brush_width  = 0;
14096     brush_height = 0;
14097     x = 0;
14098     y = 0;
14099
14100     char *clipboard_text = SDL_GetClipboardText();
14101     char *ptr = clipboard_text;
14102     boolean allow_new_row = FALSE;
14103     boolean stop = FALSE;
14104
14105     while (*ptr && !stop)
14106     {
14107       boolean prefix_found = FALSE;
14108       boolean start_new_row = FALSE;
14109
14110       // level sketch element number prefixes (may be multi-byte characters)
14111       char *prefix_list[] = { "`", "¸" };
14112       int i;
14113
14114       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
14115       {
14116         char *prefix = prefix_list[i];
14117
14118         // check if string is large enough for prefix
14119         if (strlen(ptr) < strlen(prefix))
14120         {
14121           stop = TRUE;
14122
14123           break;
14124         }
14125
14126         // check if string starts with prefix
14127         if (strPrefix(ptr, prefix))
14128         {
14129           ptr += strlen(prefix);
14130
14131           prefix_found = TRUE;
14132
14133           break;
14134         }
14135       }
14136
14137       // check if prefix found and followed by (at least) three digits
14138       if (prefix_found &&
14139           strlen(ptr) >= 3 &&
14140           ptr[0] >= '0' && ptr[0] <= '9' &&
14141           ptr[1] >= '0' && ptr[1] <= '9' &&
14142           ptr[2] >= '0' && ptr[2] <= '9')
14143       {
14144         int element = ((ptr[0] - '0') * 100 +
14145                        (ptr[1] - '0') * 10 +
14146                        (ptr[2] - '0'));
14147
14148         ptr += 3;
14149
14150         // level sketch element number might consist of four digits
14151         if (ptr[0] >= '0' && ptr[0] <= '9')
14152         {
14153           element = element * 10 + (ptr[0] - '0');
14154           ptr++;
14155         }
14156
14157         // remap some (historic, now obsolete) elements
14158         element = getMappedElement(element);
14159
14160         if (element >= NUM_FILE_ELEMENTS)
14161           element = EL_UNKNOWN;
14162
14163         brush_buffer[x][y] = element;
14164
14165         brush_width  = MAX(x + 1, brush_width);
14166         brush_height = MAX(y + 1, brush_height);
14167
14168         x++;
14169
14170         if (x >= MAX_LEV_FIELDX)
14171           start_new_row = TRUE;
14172
14173         allow_new_row = TRUE;
14174       }
14175       else
14176       {
14177         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
14178           start_new_row = TRUE;
14179
14180         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
14181       }
14182
14183       if (start_new_row)
14184       {
14185         x = 0;
14186         y++;
14187
14188         if (y >= MAX_LEV_FIELDY)
14189           stop = TRUE;
14190
14191         allow_new_row = FALSE;
14192       }
14193     }
14194
14195     SDL_free(clipboard_text);
14196
14197     if (brush_width == 0 || brush_height == 0)
14198     {
14199       Request("No level sketch found in clipboard!", REQ_CONFIRM);
14200
14201       return;
14202     }
14203
14204     if (copy_to_brush)
14205     {
14206       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
14207       int mx, my;
14208
14209       SDL_GetMouseState(&mx, &my);
14210
14211       // if inside drawing area, activate and draw brush at last mouse position
14212       if (mx >= gi->x && mx < gi->x + gi->width &&
14213           my >= gi->y && my < gi->y + gi->height)
14214         CopyBrushToCursor(last_cursor_x, last_cursor_y);
14215
14216       draw_with_brush = TRUE;
14217     }
14218     else
14219     {
14220       char request[100];
14221
14222       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
14223               brush_width, brush_height);
14224
14225       if (!Request(request, REQ_ASK))
14226         return;
14227
14228       for (x = 0; x < MAX_LEV_FIELDX; x++)
14229         for (y = 0; y < MAX_LEV_FIELDY; y++)
14230           Tile[x][y] = brush_buffer[x][y];
14231
14232       lev_fieldx = level.fieldx = brush_width;
14233       lev_fieldy = level.fieldy = brush_height;
14234
14235       boolean use_bd_engine = TRUE;
14236       boolean use_em_engine = TRUE;
14237       boolean use_sp_engine = TRUE;
14238       boolean use_mm_engine = TRUE;
14239
14240       for (x = 0; x < MAX_LEV_FIELDX; x++)
14241       {
14242         for (y = 0; y < MAX_LEV_FIELDY; y++)
14243         {
14244           int element = Tile[x][y];
14245
14246           if (!IS_BD_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
14247             use_bd_engine = FALSE;
14248
14249           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
14250             use_em_engine = FALSE;
14251
14252           if (!IS_SP_ELEMENT(element))
14253             use_sp_engine = FALSE;
14254
14255           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
14256             use_mm_engine = FALSE;
14257         }
14258       }
14259
14260       level.game_engine_type = (use_bd_engine ? GAME_ENGINE_TYPE_BD :
14261                                 use_em_engine ? GAME_ENGINE_TYPE_EM :
14262                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
14263                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
14264                                 GAME_ENGINE_TYPE_RND);
14265
14266       // update element selection list
14267       ReinitializeElementList();
14268       ModifyEditorElementList();
14269
14270       SetBorderElement();
14271
14272       DrawEditModeWindow();
14273       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14274     }
14275
14276     return;
14277   }
14278
14279   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
14280     return;
14281
14282   if (mode == CB_AREA_TO_BRUSH)
14283   {
14284     int from_lx, from_ly;
14285
14286     if (from_x > to_x)
14287       swap_numbers(&from_x, &to_x);
14288
14289     if (from_y > to_y)
14290       swap_numbers(&from_y, &to_y);
14291
14292     brush_width = to_x - from_x + 1;
14293     brush_height = to_y - from_y + 1;
14294
14295     from_lx = from_x + level_xpos;
14296     from_ly = from_y + level_ypos;
14297
14298     for (y = 0; y < brush_height; y++)
14299     {
14300       for (x = 0; x < brush_width; x++)
14301       {
14302         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
14303
14304         if (button != 1)
14305           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
14306       }
14307     }
14308
14309     if (button != 1)
14310       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14311
14312     delete_old_brush = FALSE;
14313   }
14314   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
14315            mode == CB_BRUSH_TO_LEVEL)
14316   {
14317     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
14318     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
14319     int cursor_from_x = cursor_x - brush_width / 2;
14320     int cursor_from_y = cursor_y - brush_height / 2;
14321     int border_from_x = cursor_x, border_from_y = cursor_y;
14322     int border_to_x = cursor_x, border_to_y = cursor_y;
14323
14324     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
14325       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14326
14327     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
14328         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
14329     {
14330       delete_old_brush = FALSE;
14331
14332       return;
14333     }
14334
14335     for (y = 0; y < brush_height; y++)
14336     {
14337       for (x = 0; x < brush_width; x++)
14338       {
14339         int sx = cursor_from_x + x;
14340         int sy = cursor_from_y + y;
14341         int lx = sx + level_xpos;
14342         int ly = sy + level_ypos;
14343         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
14344         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
14345                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
14346                        brush_buffer[x][y] : new_element);
14347
14348         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
14349         {
14350           if (sx < border_from_x)
14351             border_from_x = sx;
14352           else if (sx > border_to_x)
14353             border_to_x = sx;
14354           if (sy < border_from_y)
14355             border_from_y = sy;
14356           else if (sy > border_to_y)
14357             border_to_y = sy;
14358
14359           DrawBrushElement(sx, sy, element, change_level);
14360         }
14361       }
14362     }
14363
14364     if (mode != CB_DELETE_OLD_CURSOR)
14365       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
14366
14367     last_cursor_x = cursor_x;
14368     last_cursor_y = cursor_y;
14369
14370     delete_old_brush = TRUE;
14371   }
14372   else if (mode == CB_FLIP_BRUSH_X)
14373   {
14374     for (y = 0; y < brush_height; y++)
14375       for (x = 0; x < (brush_width + 1) / 2; x++)
14376         SwapFlippedTiles(&brush_buffer[x][y],
14377                          &brush_buffer[brush_width - x - 1][y], mode);
14378
14379     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14380   }
14381   else if (mode == CB_FLIP_BRUSH_Y)
14382   {
14383     for (y = 0; y < (brush_height + 1) / 2; y++)
14384       for (x = 0; x < brush_width; x++)
14385         SwapFlippedTiles(&brush_buffer[x][y],
14386                          &brush_buffer[x][brush_height - y - 1], mode);
14387
14388     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14389   }
14390   else if (mode == CB_FLIP_BRUSH_XY)
14391   {
14392     CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14393
14394     for (y = 0; y < MAX(brush_width, brush_height); y++)
14395       for (x = 0; x <= y; x++)
14396         SwapFlippedTiles(&brush_buffer[x][y],
14397                          &brush_buffer[y][x], mode);
14398
14399     swap_numbers(&brush_width, &brush_height);
14400
14401     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14402   }
14403
14404   if (mode == CB_UPDATE_BRUSH_POSITION)
14405   {
14406     last_cursor_x = from_x;
14407     last_cursor_y = from_y;
14408   }
14409 }
14410
14411 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
14412                             int button)
14413 {
14414   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
14415 }
14416
14417 static void CopyBrushToLevel(int x, int y, int button)
14418 {
14419   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
14420 }
14421
14422 static void CopyBrushToCursor(int x, int y)
14423 {
14424   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14425 }
14426
14427 static void UpdateBrushPosition(int x, int y)
14428 {
14429   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
14430 }
14431
14432 static void DeleteBrushFromCursor(void)
14433 {
14434   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14435 }
14436
14437 static void FlipBrushX(void)
14438 {
14439   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14440 }
14441
14442 static void FlipBrushY(void)
14443 {
14444   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_Y);
14445 }
14446
14447 static void RotateBrush(void)
14448 {
14449   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_XY);
14450   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14451 }
14452
14453 void DumpBrush(void)
14454 {
14455   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
14456 }
14457
14458 void DumpBrush_Small(void)
14459 {
14460   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
14461 }
14462
14463 void CopyClipboardToBrush(void)
14464 {
14465   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
14466 }
14467
14468 void CopyBrushToClipboard(void)
14469 {
14470   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
14471 }
14472
14473 void CopyBrushToClipboard_Small(void)
14474 {
14475   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
14476 }
14477
14478 void UndoLevelEditorOperation(void)
14479 {
14480   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
14481 }
14482
14483 void RedoLevelEditorOperation(void)
14484 {
14485   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14486 }
14487
14488 static void FloodFill(int from_x, int from_y, int fill_element)
14489 {
14490   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
14491 }
14492
14493 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
14494 {
14495   int from_x = from_sx2 + 2 * level_xpos;
14496   int from_y = from_sy2 + 2 * level_ypos;
14497   int max_fillx = lev_fieldx * 2;
14498   int max_filly = lev_fieldy * 2;
14499   short Fill[max_fillx][max_filly];
14500   int x, y;
14501
14502   for (x = 0; x < max_fillx; x++)
14503     for (y = 0; y < max_filly; y++)
14504       Fill[x][y] = getLevelElementHiRes(x, y);
14505
14506   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
14507                     Fill, max_fillx, max_filly);
14508
14509   for (x = 0; x < max_fillx; x++)
14510     for (y = 0; y < max_filly; y++)
14511       if (Fill[x][y] == fill_element)
14512         SetLevelElementHiRes(x, y, Fill[x][y]);
14513 }
14514
14515 // values for DrawLevelText() modes
14516 #define TEXT_INIT               0
14517 #define TEXT_SETCURSOR          1
14518 #define TEXT_WRITECHAR          2
14519 #define TEXT_BACKSPACE          3
14520 #define TEXT_NEWLINE            4
14521 #define TEXT_END                5
14522 #define TEXT_QUERY_TYPING       6
14523
14524 static int DrawLevelText(int sx, int sy, char letter, int mode)
14525 {
14526   static short delete_buffer[MAX_LEV_FIELDX];
14527   static int start_sx;
14528   static int last_sx, last_sy;
14529   static boolean typing = FALSE;
14530   int letter_element;
14531   int lx = 0, ly = 0;
14532
14533   // map lower case letters to upper case and convert special characters
14534   if (letter >= 'a' && letter <= 'z')
14535     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
14536   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
14537     letter_element = EL_CHAR_AUMLAUT;
14538   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
14539     letter_element = EL_CHAR_OUMLAUT;
14540   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
14541     letter_element = EL_CHAR_UUMLAUT;
14542   else if (letter == '^')
14543     letter_element = EL_CHAR_COPYRIGHT;
14544   else
14545     letter_element = EL_CHAR_ASCII0 + letter;
14546
14547   if (mode != TEXT_INIT)
14548   {
14549     if (!typing)
14550       return FALSE;
14551
14552     if (mode != TEXT_SETCURSOR)
14553     {
14554       sx = last_sx;
14555       sy = last_sy;
14556     }
14557
14558     lx = last_sx + level_xpos;
14559     ly = last_sy + level_ypos;
14560   }
14561
14562   switch (mode)
14563   {
14564     case TEXT_INIT:
14565       if (typing)
14566         DrawLevelText(0, 0, 0, TEXT_END);
14567
14568       typing = TRUE;
14569       start_sx = sx;
14570       last_sx = sx;
14571       last_sy = sy;
14572       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
14573       break;
14574
14575     case TEXT_SETCURSOR:
14576       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
14577       DrawAreaBorder(sx, sy, sx, sy);
14578       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
14579                      ed_tilesize, ed_tilesize);
14580       last_sx = sx;
14581       last_sy = sy;
14582       break;
14583
14584     case TEXT_WRITECHAR:
14585       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
14586       {
14587         if (new_element1 >= EL_STEEL_CHAR_START &&
14588             new_element1 <= EL_STEEL_CHAR_END)
14589           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
14590
14591         delete_buffer[sx - start_sx] = Tile[lx][ly];
14592         Tile[lx][ly] = letter_element;
14593
14594         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
14595           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
14596         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14597           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14598         else
14599           DrawLevelText(0, 0, 0, TEXT_END);
14600
14601         level.changed = TRUE;
14602       }
14603       break;
14604
14605     case TEXT_BACKSPACE:
14606       if (sx > start_sx)
14607       {
14608         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
14609         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
14610         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
14611       }
14612       break;
14613
14614     case TEXT_NEWLINE:
14615       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14616         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14617       else
14618         DrawLevelText(0, 0, 0, TEXT_END);
14619       break;
14620
14621     case TEXT_END:
14622       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14623       DrawEditorElement(sx, sy, Tile[lx][ly]);
14624       StopTextInput();
14625       typing = FALSE;
14626       break;
14627
14628     case TEXT_QUERY_TYPING:
14629       break;
14630
14631     default:
14632       break;
14633   }
14634
14635   return typing;
14636 }
14637
14638 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
14639                           int element, boolean change_level)
14640 {
14641   int lx = sx + level_xpos;
14642   int ly = sy + level_ypos;
14643
14644   if (element == -1)
14645     DrawEditorElement(sx, sy, Tile[lx][ly]);
14646   else
14647     DrawAreaBorder(sx, sy, sx, sy);
14648 }
14649
14650 static void CheckLevelBorderElement(boolean redraw_playfield)
14651 {
14652   int last_border_element = BorderElement;
14653
14654   SetBorderElement();
14655
14656   if (redraw_playfield && BorderElement != last_border_element)
14657     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14658 }
14659
14660 static void CopyLevelToUndoBuffer(int mode)
14661 {
14662   static boolean accumulated_undo = FALSE;
14663   boolean new_undo_buffer_position = TRUE;
14664   int x, y;
14665
14666   if (undo_buffer_steps == 0)
14667     accumulated_undo = FALSE;
14668
14669   switch (mode)
14670   {
14671     case UNDO_IMMEDIATE:
14672       accumulated_undo = FALSE;
14673       break;
14674
14675     case UNDO_ACCUMULATE:
14676       if (accumulated_undo)
14677         new_undo_buffer_position = FALSE;
14678       accumulated_undo = TRUE;
14679       break;
14680
14681     default:
14682       break;
14683   }
14684
14685   if (new_undo_buffer_position)
14686   {
14687     // advance position in undo buffer ring
14688     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14689
14690     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
14691       undo_buffer_steps++;
14692   }
14693
14694   // always reset redo buffer when storing level change into undo buffer
14695   redo_buffer_steps = 0;
14696
14697   for (x = 0; x < lev_fieldx; x++)
14698     for (y = 0; y < lev_fieldy; y++)
14699       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
14700
14701   // check if drawing operation forces change of border style
14702   CheckLevelBorderElement(TRUE);
14703
14704   level.changed = TRUE;
14705 }
14706
14707 static void RandomPlacement(int new_element)
14708 {
14709   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
14710   int num_free_positions = 0;
14711   int num_percentage, num_elements;
14712   int x, y;
14713
14714   ResetIntelliDraw();
14715
14716   // determine number of free positions for randomly placing the new element
14717   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
14718   {
14719     free_position[x][y] =
14720       (random_placement_background_restricted ?
14721        Tile[x][y] == random_placement_background_element :
14722        Tile[x][y] != new_element);
14723
14724     if (free_position[x][y])
14725       num_free_positions++;
14726   }
14727
14728   // determine number of new elements to place there
14729   num_percentage = num_free_positions * random_placement_value / 100;
14730   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
14731                   num_percentage : random_placement_value);
14732
14733   // if less free positions than elements to place, fill all these positions
14734   if (num_free_positions < num_elements)
14735   {
14736     for (x = 0; x < lev_fieldx; x++)
14737       for (y = 0; y < lev_fieldy; y++)
14738         if (free_position[x][y])
14739           SetElement(x, y, new_element);
14740   }
14741   else
14742   {
14743     while (num_elements > 0)
14744     {
14745       x = GetSimpleRandom(lev_fieldx);
14746       y = GetSimpleRandom(lev_fieldy);
14747
14748       // don't place element at the same position twice
14749       if (free_position[x][y])
14750       {
14751         free_position[x][y] = FALSE;
14752         SetElement(x, y, new_element);
14753         num_elements--;
14754       }
14755     }
14756   }
14757
14758   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14759   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14760 }
14761
14762 static void WrapLevel(int dx, int dy)
14763 {
14764   int wrap_dx = lev_fieldx - dx;
14765   int wrap_dy = lev_fieldy - dy;
14766   int x, y;
14767
14768   for (x = 0; x < lev_fieldx; x++)
14769     for (y = 0; y < lev_fieldy; y++)
14770       TileBackup[x][y] = Tile[x][y];
14771
14772   for (x = 0; x < lev_fieldx; x++)
14773     for (y = 0; y < lev_fieldy; y++)
14774       Tile[x][y] =
14775         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
14776
14777   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14778   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
14779 }
14780
14781 static void DrawAreaElementHighlight(boolean highlighted,
14782                                      boolean highlighted_similar)
14783 {
14784   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14785
14786   if (!highlighted)
14787     return;
14788
14789   int x, y;
14790
14791   for (x = 0; x < ed_fieldx; x++)
14792   {
14793     for (y = 0; y < ed_fieldy; y++)
14794     {
14795       boolean highlight = FALSE;
14796       int lx = x + level_xpos;
14797       int ly = y + level_ypos;
14798
14799       if (!IN_LEV_FIELD(lx, ly))
14800         continue;
14801
14802       // check if element is the same
14803       if (Tile[lx][ly] == new_element1)
14804         highlight = TRUE;
14805
14806       // check if element is similar
14807       if (highlighted_similar &&
14808           strEqual(element_info[Tile[lx][ly]].class_name,
14809                    element_info[new_element1].class_name))
14810         highlight = TRUE;
14811
14812       // check if element is matching MM style wall
14813       if (IS_MM_WALL(Tile[lx][ly]) &&
14814           map_mm_wall_element(Tile[lx][ly]) == new_element1)
14815         highlight = TRUE;
14816
14817       if (!highlight)
14818         continue;
14819
14820       if (IS_MM_WALL(Tile[lx][ly]) && !highlighted_similar)
14821       {
14822         int i;
14823
14824         for (i = 0; i < 4; i++)
14825         {
14826           if (!(MM_WALL_BITS(Tile[lx][ly]) & (1 << i)))
14827             continue;
14828
14829           int xx = x * 2 + (i % 2);
14830           int yy = y * 2 + (i / 2);
14831           int sx = SX + xx * ed_tilesize / 2;
14832           int sy = SY + yy * ed_tilesize / 2;
14833           int from_sx = sx;
14834           int from_sy = sy;
14835           int to_sx = sx + ed_tilesize / 2 - 1;
14836           int to_sy = sy + ed_tilesize / 2 - 1;
14837
14838           DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14839           DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14840           DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14841           DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14842         }
14843       }
14844       else
14845       {
14846         int sx = SX + x * ed_tilesize;
14847         int sy = SY + y * ed_tilesize;
14848         int from_sx = sx;
14849         int from_sy = sy;
14850         int to_sx = sx + ed_tilesize - 1;
14851         int to_sy = sy + ed_tilesize - 1;
14852
14853         DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14854         DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14855         DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14856         DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14857       }
14858     }
14859   }
14860 }
14861
14862 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
14863 {
14864   char *template_filename_old = getLocalLevelTemplateFilename();
14865   char *template_filename_new =
14866     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
14867
14868   if (copyFile(template_filename_old, template_filename_new) != 0)
14869     Request("Cannot copy level template!", REQ_CONFIRM);
14870
14871   free(template_filename_new);
14872 }
14873
14874 static void HandleDrawingAreas(struct GadgetInfo *gi)
14875 {
14876   static boolean started_inside_drawing_area = FALSE;
14877   static int last_sx = -1;
14878   static int last_sy = -1;
14879   static int last_sx2 = -1;
14880   static int last_sy2 = -1;
14881   int id = gi->custom_id;
14882   int type_id = gi->custom_type_id;
14883   boolean button_press_event;
14884   boolean button_release_event;
14885   boolean inside_drawing_area = !gi->event.off_borders;
14886   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
14887   int actual_drawing_function;
14888   int button = gi->event.button;
14889   int new_element = BUTTON_ELEMENT(button);
14890   int sx = gi->event.x, sy = gi->event.y;
14891   int min_sx = 0, min_sy = 0;
14892   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
14893   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
14894   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
14895   int sx2 = gi->event.mx / mini_item_xsize;
14896   int sy2 = gi->event.my / mini_item_ysize;
14897   int dx = sx2 % 2;
14898   int dy = sy2 % 2;
14899   int lx = 0, ly = 0;
14900   int x, y;
14901
14902   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
14903   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
14904
14905   // make sure to stay inside drawing area boundaries
14906   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
14907   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
14908
14909   if (draw_level)
14910   {
14911     int min_lx = 0, min_ly = 0;
14912     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
14913
14914     // get positions inside level field
14915     lx = sx + level_xpos;
14916     ly = sy + level_ypos;
14917
14918     if (!IN_LEV_FIELD(lx, ly))
14919       inside_drawing_area = FALSE;
14920
14921     // make sure to stay inside level field boundaries
14922     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
14923     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
14924
14925     // correct drawing area positions accordingly
14926     sx = lx - level_xpos;
14927     sy = ly - level_ypos;
14928   }
14929
14930   // also correct MM wall-sized (double) drawing area positions accordingly
14931   if (sx2 / 2 < sx || sx2 / 2 > sx)
14932   {
14933     dx = (sx2 / 2 < sx ? 0 : 1);
14934     sx2 = sx * 2 + dx;
14935   }
14936   if (sy2 / 2 < sy || sy2 / 2 > sy)
14937   {
14938     dy = (sy2 / 2 < sy ? 0 : 1);
14939     sy2 = sy * 2 + dy;
14940   }
14941
14942   if (!button_press_event && !button_release_event)
14943   {
14944     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
14945     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
14946                              isHiresTileElement(old_element) &&
14947                              isHiresDrawElement(new_element));
14948
14949     // prevent handling events for every pixel position when moving mouse
14950     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
14951         (sx2 == last_sx2 && sy2 == last_sy2))
14952       return;
14953   }
14954
14955   last_sx = sx;
14956   last_sy = sy;
14957   last_sx2 = sx2;
14958   last_sy2 = sy2;
14959
14960   if (button_press_event)
14961     started_inside_drawing_area = inside_drawing_area;
14962
14963   if (!started_inside_drawing_area)
14964     return;
14965
14966   if (!IS_VALID_BUTTON(button))
14967     return;
14968
14969   // handle info callback for each invocation of action callback
14970   gi->callback_info(gi);
14971
14972   // automatically switch to 'single item' drawing mode, if needed
14973   actual_drawing_function =
14974     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
14975      drawing_function : GADGET_ID_SINGLE_ITEMS);
14976
14977   // clicking into drawing area with pressed Control key picks element
14978   if (GetKeyModState() & KMOD_Control)
14979   {
14980     last_drawing_function = drawing_function;
14981     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
14982   }
14983
14984   if (GetKeyModState() & KMOD_Shift)
14985   {
14986     if (button_press_event || button_release_event)
14987       ResetIntelliDraw();
14988   }
14989
14990   SetDrawModeHiRes(-1);         // reset to normal draw mode
14991
14992   switch (actual_drawing_function)
14993   {
14994     case GADGET_ID_SINGLE_ITEMS:
14995       if (draw_level)
14996       {
14997         if (button_release_event)
14998         {
14999           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
15000
15001           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
15002               !inside_drawing_area)
15003             DeleteBrushFromCursor();
15004
15005           break;
15006         }
15007
15008         if (draw_with_brush)
15009         {
15010           CopyBrushToLevel(sx, sy, button);
15011         }
15012         else
15013         {
15014           SetDrawModeHiRes(new_element);
15015
15016           if (IS_PLAYER_ELEMENT(new_element) || IS_MM_MCDUFFIN(new_element))
15017           {
15018             // remove player at old position
15019             for (y = 0; y < lev_fieldy; y++)
15020             {
15021               for (x = 0; x < lev_fieldx; x++)
15022               {
15023                 int old_element = Tile[x][y];
15024
15025                 if (IS_PLAYER_ELEMENT(old_element) &&
15026                     IS_PLAYER_ELEMENT(new_element))
15027                 {
15028                   int replaced_with_element =
15029                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
15030                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
15031
15032                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
15033                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
15034
15035                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
15036                      old_element == EL_PLAYER_1 ? EL_EMPTY :
15037
15038                      new_element >= EL_PLAYER_1 &&
15039                      new_element <= EL_PLAYER_4 &&
15040                      new_element == old_element ? EL_EMPTY :
15041
15042                      old_element);
15043
15044                   SetElement(x, y, replaced_with_element);
15045                 }
15046                 else if (IS_MM_MCDUFFIN(old_element) &&
15047                          IS_MM_MCDUFFIN(new_element))
15048                 {
15049                   // remove McDuffin at old position
15050                   SetElement(x, y, EL_EMPTY);
15051                 }
15052               }
15053             }
15054           }
15055
15056           SetElementButton(lx, ly, dx, dy, new_element, button);
15057         }
15058       }
15059       else if (!button_release_event)
15060       {
15061         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
15062
15063         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
15064           DrawMiniGraphicExt(drawto,
15065                              gi->x + sx * MINI_TILEX,
15066                              gi->y + sy * MINI_TILEY,
15067                              el2edimg(new_element));
15068         else
15069           DrawFixedGraphicExt(drawto,
15070                               gi->x + sx * TILEX,
15071                               gi->y + sy * TILEY,
15072                               el2edimg(new_element), 0);
15073
15074         if (id == GADGET_ID_CUSTOM_GRAPHIC)
15075           new_element = GFX_ELEMENT(new_element);
15076
15077         drawingarea_info[type_id].value[pos] = new_element;
15078
15079         CopyElementPropertiesToGame(properties_element);
15080
15081         if (id == GADGET_ID_CUSTOM_GRAPHIC)
15082         {
15083           UpdateCustomElementGraphicGadgets();
15084
15085           FrameCounter = 0;     // restart animation frame counter
15086         }
15087       }
15088       break;
15089
15090     case GADGET_ID_CONNECTED_ITEMS:
15091       {
15092         static int last_sx = -1;
15093         static int last_sy = -1;
15094
15095         if (button_release_event)
15096           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
15097
15098         SetDrawModeHiRes(new_element);
15099
15100         if (getDrawModeHiRes())
15101         {
15102           sx = sx2;
15103           sy = sy2;
15104         }
15105
15106         if (!button_press_event)
15107           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
15108
15109         last_sx = sx;
15110         last_sy = sy;
15111       }
15112       break;
15113
15114     case GADGET_ID_LINE:
15115     case GADGET_ID_ARC:
15116     case GADGET_ID_RECTANGLE:
15117     case GADGET_ID_FILLED_BOX:
15118       SetDrawModeHiRes(new_element);
15119
15120       if (getDrawModeHiRes())
15121       {
15122         sx = sx2;
15123         sy = sy2;
15124       }
15125       // FALLTHROUGH
15126     case GADGET_ID_GRAB_BRUSH:
15127     case GADGET_ID_TEXT:
15128       {
15129         static int last_sx = -1;
15130         static int last_sy = -1;
15131         static int start_sx = -1;
15132         static int start_sy = -1;
15133         void (*draw_func)(int, int, int, int, int, boolean);
15134
15135         if (drawing_function == GADGET_ID_LINE)
15136           draw_func = DrawLine;
15137         else if (drawing_function == GADGET_ID_ARC)
15138           draw_func = DrawArc;
15139         else if (drawing_function == GADGET_ID_RECTANGLE)
15140           draw_func = DrawBox;
15141         else if (drawing_function == GADGET_ID_FILLED_BOX)
15142           draw_func = DrawFilledBox;
15143         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
15144           draw_func = SelectArea;
15145         else // (drawing_function == GADGET_ID_TEXT)
15146           draw_func = SetTextCursor;
15147
15148         if (button_press_event)
15149         {
15150           draw_func(sx, sy, sx, sy, new_element, FALSE);
15151           start_sx = last_sx = sx;
15152           start_sy = last_sy = sy;
15153
15154           if (drawing_function == GADGET_ID_TEXT)
15155             DrawLevelText(0, 0, 0, TEXT_END);
15156         }
15157         else if (button_release_event)
15158         {
15159           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
15160           if (drawing_function == GADGET_ID_GRAB_BRUSH)
15161           {
15162             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
15163             CopyBrushToCursor(sx, sy);
15164             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
15165                           MB_LEFTBUTTON);
15166             draw_with_brush = TRUE;
15167           }
15168           else if (drawing_function == GADGET_ID_TEXT)
15169             DrawLevelText(sx, sy, 0, TEXT_INIT);
15170           else
15171             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
15172         }
15173         else if (last_sx != sx || last_sy != sy)
15174         {
15175           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
15176           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
15177             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
15178           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
15179           last_sx = sx;
15180           last_sy = sy;
15181         }
15182       }
15183       break;
15184
15185     case GADGET_ID_FLOOD_FILL:
15186       if (button_press_event && Tile[lx][ly] != new_element)
15187       {
15188         if (IS_MM_WALL_EDITOR(new_element))
15189           FloodFillWall_MM(sx2, sy2, new_element);
15190         else
15191           FloodFill(lx, ly, new_element);
15192
15193         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15194         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
15195       }
15196       break;
15197
15198     case GADGET_ID_PICK_ELEMENT:
15199       if (button_release_event)
15200         ClickOnGadget(level_editor_gadget[last_drawing_function],
15201                       MB_LEFTBUTTON);
15202       else if (draw_level)
15203         PickDrawingElement(button, Tile[lx][ly]);
15204       else
15205       {
15206         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
15207
15208         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
15209       }
15210
15211     default:
15212       break;
15213   }
15214
15215   // do not mark level as modified for certain non-level-changing gadgets
15216   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
15217        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
15218       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
15219       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
15220     return;
15221
15222   level.changed = TRUE;
15223 }
15224
15225 static void HandleCounterButtons(struct GadgetInfo *gi)
15226 {
15227   int gadget_id = gi->custom_id;
15228   int counter_id = gi->custom_type_id;
15229   int button = gi->event.button;
15230   int *counter_value = counterbutton_info[counter_id].value;
15231   int step = BUTTON_STEPSIZE(button) *
15232     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
15233
15234   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
15235   {
15236     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
15237     boolean released = (gi->event.type == GD_EVENT_RELEASED);
15238     boolean level_changed = LevelChanged();
15239
15240     if ((level_changed && pressed) || (!level_changed && released))
15241       return;
15242
15243     if (level_changed && !Request("Level has changed! Discard changes?",
15244                                   REQ_ASK))
15245     {
15246       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
15247         ModifyEditorCounterValue(counter_id, *counter_value);
15248
15249       return;
15250     }
15251   }
15252
15253   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
15254     *counter_value = gi->textinput.number_value;
15255   else
15256     ModifyEditorCounterValue(counter_id, *counter_value + step);
15257
15258   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
15259   {
15260     int last_game_engine_type = level.game_engine_type;
15261
15262     LoadLevel(level_nr);
15263     LoadScore(level_nr);
15264
15265     SaveLevelSetup_SeriesInfo();
15266
15267     TapeErase();
15268
15269     ResetUndoBuffer();
15270     DrawEditModeWindow();
15271
15272     if (level.game_engine_type != last_game_engine_type)
15273     {
15274       // update element selection list
15275       ReinitializeElementList();
15276       ModifyEditorElementList();
15277     }
15278
15279     return;
15280   }
15281
15282   switch (counter_id)
15283   {
15284     case ED_COUNTER_ID_YAMYAM_CONTENT:
15285       DrawYamYamContentAreas();
15286       break;
15287
15288     case ED_COUNTER_ID_BALL_CONTENT:
15289       DrawMagicBallContentAreas();
15290       break;
15291
15292     case ED_COUNTER_ID_ANDROID_CONTENT:
15293       DrawAndroidElementArea();
15294       break;
15295
15296     case ED_COUNTER_ID_GROUP_CONTENT:
15297       DrawGroupElementArea();
15298       CopyGroupElementPropertiesToGame(properties_element);
15299       break;
15300
15301     case ED_COUNTER_ID_INVENTORY_SIZE:
15302       DrawPlayerInitialInventoryArea(properties_element);
15303       break;
15304
15305     case ED_COUNTER_ID_MM_BALL_CONTENT:
15306       DrawMMBallContentArea();
15307       break;
15308
15309     case ED_COUNTER_ID_ENVELOPE_XSIZE:
15310     case ED_COUNTER_ID_ENVELOPE_YSIZE:
15311       DrawEnvelopeTextArea(-1);
15312       break;
15313
15314     case ED_COUNTER_ID_LEVEL_XSIZE:
15315     case ED_COUNTER_ID_LEVEL_YSIZE:
15316       lev_fieldx = level.fieldx;
15317       lev_fieldy = level.fieldy;
15318
15319       // check if resizing of level results in change of border border
15320       SetBorderElement();
15321
15322       break;
15323
15324     default:
15325       break;
15326   }
15327
15328   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
15329        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
15330       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
15331        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
15332     CopyElementPropertiesToGame(properties_element);
15333
15334   // do not mark level as modified for certain non-level-changing gadgets
15335   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
15336        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
15337       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
15338        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
15339     return;
15340
15341   level.changed = TRUE;
15342 }
15343
15344 static void HandleTextInputGadgets(struct GadgetInfo *gi)
15345 {
15346   int type_id = gi->custom_type_id;
15347
15348   strcpy(textinput_info[type_id].value, gi->textinput.value);
15349
15350   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
15351   {
15352     CopyElementPropertiesToGame(properties_element);
15353
15354     ModifyEditorElementList();  // update changed button info text
15355   }
15356
15357   // do not mark level as modified for certain non-level-changing gadgets
15358   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
15359       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
15360     return;
15361
15362   level.changed = TRUE;
15363 }
15364
15365 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
15366 {
15367   int type_id = gi->custom_type_id;
15368
15369   strncpy(textarea_info[type_id].value, gi->textarea.value,
15370           MAX_ENVELOPE_TEXT_LEN);
15371   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
15372
15373   level.changed = TRUE;
15374 }
15375
15376 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
15377 {
15378   int type_id = gi->custom_type_id;
15379   int value_old = *selectbox_info[type_id].value;
15380   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
15381
15382   *selectbox_info[type_id].value = value_new;
15383
15384   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
15385   {
15386     DrawLevelConfigWindow();
15387   }
15388   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
15389   {
15390     element_info[properties_element].current_change_page = gi->selectbox.index;
15391
15392     DrawPropertiesWindow();
15393   }
15394   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
15395             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
15396            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
15397             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
15398            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
15399   {
15400     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
15401     {
15402       // when changing action type, also check action mode and action arg
15403       if (value_old != value_new)
15404         setSelectboxSpecialActionVariablesIfNeeded();
15405
15406       DrawPropertiesChange();
15407     }
15408
15409     CopyElementPropertiesToGame(properties_element);
15410   }
15411   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
15412   {
15413     // show or hide "engine" tabulator depending on game engine type
15414     DrawLevelConfigWindow();
15415
15416     // update element selection list depending on game engine type
15417     ReinitializeElementList();
15418     ModifyEditorElementList();
15419   }
15420   else if (type_id == ED_SELECTBOX_ID_BD_SCHEDULING_TYPE)
15421   {
15422     // update BD cycle delay counter gadgets depending on BD scheduling type
15423     DrawLevelConfigWindow();
15424   }
15425
15426   // do not mark level as modified for certain non-level-changing gadgets
15427   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
15428       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
15429     return;
15430
15431   level.changed = TRUE;
15432 }
15433
15434 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
15435 {
15436   int type_id = gi->custom_type_id;
15437   int i;
15438
15439   if (type_id >= ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST &&
15440       type_id <= ED_TAB_BUTTON_ID_LEVELCONFIG_LAST)
15441   {
15442     edit_mode_levelconfig = gi->custom_type_id;
15443
15444     DrawLevelConfigWindow();
15445   }
15446   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
15447            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
15448   {
15449     edit_mode_properties = gi->custom_type_id;
15450
15451     DrawPropertiesWindow();
15452   }
15453   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
15454            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
15455   {
15456     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
15457
15458     // backup original "level.field" (needed to track playfield changes)
15459     CopyPlayfield(level.field, TileBackup);
15460
15461     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
15462     CopyPlayfield(Tile, level.field);
15463
15464     if (new_template ||
15465         Request("Save this template and kill the old?", REQ_ASK))
15466       SaveLevelTemplate();
15467
15468     if (new_template)
15469       Request("Template saved!", REQ_CONFIRM);
15470
15471     // restore original "level.field" (needed to track playfield changes)
15472     CopyPlayfield(TileBackup, level.field);
15473   }
15474   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
15475   {
15476     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
15477
15478     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
15479         leveldir_current->readonly)
15480     {
15481       Request("This level set is read-only!", REQ_CONFIRM);
15482
15483       return;
15484     }
15485
15486     if (strEqual(levelset_name, ""))
15487     {
15488       Request("Please enter level set title!", REQ_CONFIRM);
15489
15490       return;
15491     }
15492
15493     if (strEqual(levelset_author, ""))
15494     {
15495       Request("Please enter level set author!", REQ_CONFIRM);
15496
15497       return;
15498     }
15499
15500     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
15501     {
15502       if (UpdateUserLevelSet(levelset_subdir,
15503                              levelset_name,
15504                              levelset_author,
15505                              levelset_num_levels))
15506       {
15507         Request("Level set updated!", REQ_CONFIRM);
15508       }
15509       else
15510       {
15511         Request("Updating level set failed!", REQ_CONFIRM);
15512       }
15513     }
15514     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
15515     {
15516       if (level.changed && !Request("Level has changed! Discard changes?",
15517                                      REQ_ASK))
15518         return;
15519
15520       if (CreateUserLevelSet(levelset_subdir,
15521                              levelset_name,
15522                              levelset_author,
15523                              levelset_num_levels,
15524                              levelset_use_levelset_artwork))
15525       {
15526         if (levelset_copy_level_template)
15527           CopyLevelTemplateToUserLevelSet(levelset_subdir);
15528
15529         Request("New level set created!", REQ_CONFIRM);
15530
15531         AddUserLevelSetToLevelInfo(levelset_subdir);
15532         ChangeEditorToLevelSet(levelset_subdir);
15533       }
15534       else
15535       {
15536         Request("Creating new level set failed!", REQ_CONFIRM);
15537       }
15538     }
15539   }
15540   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
15541            custom_element.num_change_pages < MAX_CHANGE_PAGES)
15542   {
15543     struct ElementInfo *ei = &element_info[properties_element];
15544
15545     // when modifying custom element, ask for copying level template
15546     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15547       return;
15548
15549     setElementChangePages(ei, ei->num_change_pages + 1);
15550
15551     // set new change page to be new current change page
15552     ei->current_change_page = ei->num_change_pages - 1;
15553     ei->change = &ei->change_page[ei->current_change_page];
15554
15555     setElementChangeInfoToDefaults(ei->change);
15556
15557     DrawPropertiesWindow();
15558
15559     level.changed = TRUE;
15560   }
15561   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
15562            custom_element.num_change_pages > MIN_CHANGE_PAGES)
15563   {
15564     struct ElementInfo *ei = &element_info[properties_element];
15565
15566     // when modifying custom element, ask for copying level template
15567     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15568       return;
15569
15570     // copy all change pages after change page to be deleted
15571     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
15572       ei->change_page[i] = ei->change_page[i + 1];
15573
15574     setElementChangePages(ei, ei->num_change_pages - 1);
15575
15576     DrawPropertiesWindow();
15577
15578     level.changed = TRUE;
15579   }
15580 }
15581
15582 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
15583 {
15584   int type_id = gi->custom_type_id;
15585
15586   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
15587       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
15588   {
15589     struct ElementInfo *ei = &element_info[properties_element];
15590     int step = BUTTON_STEPSIZE(gi->event.button);
15591
15592     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
15593     ei->current_change_page += step;
15594
15595     if (ei->current_change_page < 0)
15596       ei->current_change_page = 0;
15597     else if (ei->current_change_page >= ei->num_change_pages)
15598       ei->current_change_page = ei->num_change_pages - 1;
15599
15600     DrawPropertiesWindow();
15601   }
15602   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
15603            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15604   {
15605     struct ElementInfo *ei = &element_info[properties_element];
15606     int current_change_page = ei->current_change_page;
15607
15608     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
15609     {
15610       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
15611         ei->change_page[current_change_page];
15612     }
15613     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15614     {
15615       // when modifying custom element, ask for copying level template
15616       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15617         return;
15618
15619       ei->change_page[current_change_page] =
15620         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
15621
15622       level.changed = TRUE;
15623     }
15624
15625     DrawPropertiesWindow();
15626   }
15627 }
15628
15629 static void HandleRadiobuttons(struct GadgetInfo *gi)
15630 {
15631   int type_id = gi->custom_type_id;
15632
15633   *radiobutton_info[type_id].value =
15634     radiobutton_info[type_id].checked_value;
15635
15636   // do not mark level as modified for certain non-level-changing gadgets
15637   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
15638       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
15639     return;
15640
15641   level.changed = TRUE;
15642 }
15643
15644 static void HandleCheckbuttons(struct GadgetInfo *gi)
15645 {
15646   int type_id = gi->custom_type_id;
15647
15648   *checkbutton_info[type_id].value ^= TRUE;
15649
15650   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
15651       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
15652       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
15653       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
15654          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
15655         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
15656          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
15657        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
15658   {
15659     CopyElementPropertiesToGame(properties_element);
15660   }
15661
15662   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
15663   {
15664     UpdateCustomElementGraphicGadgets();
15665   }
15666   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
15667            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
15668   {
15669     boolean template_related_changes_found = FALSE;
15670     int i;
15671
15672     // check if any custom, group or empty elements have been changed
15673     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
15674       if ((IS_CUSTOM_ELEMENT(i) ||
15675            IS_GROUP_ELEMENT(i) ||
15676            IS_EMPTY_ELEMENT(i)) &&
15677           element_info[i].modified_settings)
15678         template_related_changes_found = TRUE;
15679
15680     if (level.use_custom_template &&
15681         !fileExists(getGlobalLevelTemplateFilename()))
15682     {
15683       Request("No level template found!", REQ_CONFIRM);
15684
15685       level.use_custom_template = FALSE;
15686
15687       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15688
15689       return;
15690     }
15691
15692     if (level.use_custom_template &&
15693         template_related_changes_found &&
15694         !Request("Discard changes and use level template?", REQ_ASK))
15695     {
15696       level.use_custom_template = FALSE;
15697
15698       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15699
15700       return;
15701     }
15702
15703     if (!level.use_custom_template &&
15704         Request("Copy settings from level template?", REQ_ASK))
15705     {
15706       return;
15707     }
15708
15709     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
15710
15711     DrawEditModeWindow();
15712   }
15713   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
15714   {
15715     if (setup.editor.use_template_for_new_levels &&
15716         !fileExists(getGlobalLevelTemplateFilename()))
15717     {
15718       Request("No level template found!", REQ_CONFIRM);
15719
15720       return;
15721     }
15722
15723     if (setup.editor.use_template_for_new_levels &&
15724         level.changed &&
15725         !Request("Discard level and load template?", REQ_ASK))
15726     {
15727       return;
15728     }
15729
15730     if (!setup.editor.use_template_for_new_levels &&
15731         level.changed &&
15732         !Request("Discard level and use empty level?", REQ_ASK))
15733     {
15734       return;
15735     }
15736
15737     LoadLevel(level_nr);
15738     LoadScore(level_nr);
15739
15740     TapeErase();
15741
15742     ResetUndoBuffer();
15743     DrawEditModeWindow();
15744   }
15745   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
15746   {
15747     SetAutomaticNumberOfGemsNeeded();
15748   }
15749
15750   // do not mark level as modified for certain non-level-changing gadgets
15751   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
15752        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
15753       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
15754        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
15755        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
15756       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
15757     return;
15758
15759   level.changed = TRUE;
15760 }
15761
15762 static void HandleControlButtons(struct GadgetInfo *gi)
15763 {
15764   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
15765   static int last_edit_mode = ED_MODE_DRAWING;
15766   static int last_custom_copy_mode = -1;
15767   static int last_button = 0;
15768   int id = gi->custom_id;
15769   int button = gi->event.button;
15770   int step = BUTTON_STEPSIZE(button);
15771   int new_element = BUTTON_ELEMENT(button);
15772   int last_properties_element = properties_element;
15773   int x, y;
15774
15775   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
15776     DrawLevelText(0, 0, 0, TEXT_END);
15777
15778   if (id < ED_NUM_CTRL1_BUTTONS &&
15779       id != GADGET_ID_SINGLE_ITEMS &&
15780       id != GADGET_ID_PICK_ELEMENT &&
15781       edit_mode != ED_MODE_DRAWING &&
15782       drawing_function != GADGET_ID_PICK_ELEMENT &&
15783       !(GetKeyModState() & KMOD_Control))
15784     ChangeEditModeWindow(ED_MODE_DRAWING);
15785
15786   // element copy mode active, but no element button pressed => deactivate
15787   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
15788     last_custom_copy_mode = -1;
15789
15790   // when showing palette on element buttons, change element of button used
15791   if (editor.palette.show_on_element_buttons &&
15792       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
15793   {
15794     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
15795
15796     id = GADGET_ID_PALETTE;
15797   }
15798
15799   switch (id)
15800   {
15801     case GADGET_ID_SCROLL_LEFT:
15802       if (level_xpos >= 0)
15803       {
15804         if (lev_fieldx < ed_fieldx - 2)
15805           break;
15806
15807         level_xpos -= step;
15808         if (level_xpos < -1)
15809           level_xpos = -1;
15810         if (button == 1)
15811           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
15812         else
15813           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15814
15815         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15816                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15817       }
15818       break;
15819
15820     case GADGET_ID_SCROLL_RIGHT:
15821       if (level_xpos <= lev_fieldx - ed_fieldx)
15822       {
15823         if (lev_fieldx < ed_fieldx - 2)
15824           break;
15825
15826         level_xpos += step;
15827         if (level_xpos > lev_fieldx - ed_fieldx + 1)
15828           level_xpos = lev_fieldx - ed_fieldx + 1;
15829         if (button == 1)
15830           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
15831         else
15832           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15833
15834         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15835                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15836       }
15837       break;
15838
15839     case GADGET_ID_SCROLL_UP:
15840       if (level_ypos >= 0)
15841       {
15842         if (lev_fieldy < ed_fieldy - 2)
15843           break;
15844
15845         level_ypos -= step;
15846         if (level_ypos < -1)
15847           level_ypos = -1;
15848         if (button == 1)
15849           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
15850         else
15851           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15852
15853         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15854                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15855       }
15856       break;
15857
15858     case GADGET_ID_SCROLL_DOWN:
15859       if (level_ypos <= lev_fieldy - ed_fieldy)
15860       {
15861         if (lev_fieldy < ed_fieldy - 2)
15862           break;
15863
15864         level_ypos += step;
15865         if (level_ypos > lev_fieldy - ed_fieldy + 1)
15866           level_ypos = lev_fieldy - ed_fieldy + 1;
15867         if (button == 1)
15868           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
15869         else
15870           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15871
15872         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15873                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15874       }
15875       break;
15876
15877     case GADGET_ID_SCROLL_HORIZONTAL:
15878       level_xpos = gi->event.item_position - 1;
15879
15880       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15881       BackToFront();
15882
15883       break;
15884
15885     case GADGET_ID_SCROLL_VERTICAL:
15886       level_ypos = gi->event.item_position - 1;
15887
15888       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15889       BackToFront();
15890
15891       break;
15892
15893     case GADGET_ID_SCROLL_LIST_UP:
15894     case GADGET_ID_SCROLL_LIST_DOWN:
15895     case GADGET_ID_SCROLL_LIST_VERTICAL:
15896       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
15897         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
15898       else
15899       {
15900         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
15901         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15902
15903         if (element_shift < 0)
15904           element_shift = 0;
15905         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15906           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15907
15908         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15909                      GDI_SCROLLBAR_ITEM_POSITION,
15910                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15911       }
15912
15913       ModifyEditorElementList();
15914
15915       break;
15916
15917     case GADGET_ID_PROPERTIES:
15918       // always switch off element properties when they are already displayed
15919       last_properties_element = new_element;
15920     case GADGET_ID_ELEMENT_LEFT:
15921     case GADGET_ID_ELEMENT_MIDDLE:
15922     case GADGET_ID_ELEMENT_RIGHT:
15923       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
15924                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
15925                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
15926                             new_element);
15927
15928       if (edit_mode != ED_MODE_PROPERTIES)
15929       {
15930         last_edit_mode = edit_mode;
15931
15932         ChangeEditModeWindow(ED_MODE_PROPERTIES);
15933
15934         last_level_drawing_function = drawing_function;
15935         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
15936                       MB_LEFTBUTTON);
15937       }
15938       else if (properties_element != last_properties_element)
15939       {
15940         DrawEditModeWindow();
15941       }
15942       else
15943       {
15944         ChangeEditModeWindow(ED_MODE_DRAWING);
15945
15946         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
15947                       MB_LEFTBUTTON);
15948       }
15949       break;
15950
15951     case GADGET_ID_PALETTE:
15952       if (edit_mode != ED_MODE_PALETTE)
15953       {
15954         last_edit_mode = edit_mode;
15955
15956         ChangeEditModeWindow(ED_MODE_PALETTE);
15957       }
15958       else
15959       {
15960         ChangeEditModeWindow(last_edit_mode);
15961       }
15962       break;
15963
15964     case GADGET_ID_WRAP_LEFT:
15965       WrapLevel(-step, 0);
15966       break;
15967
15968     case GADGET_ID_WRAP_RIGHT:
15969       WrapLevel(step, 0);
15970       break;
15971
15972     case GADGET_ID_WRAP_UP:
15973       WrapLevel(0, -step);
15974       break;
15975
15976     case GADGET_ID_WRAP_DOWN:
15977       WrapLevel(0, step);
15978       break;
15979
15980     case GADGET_ID_SINGLE_ITEMS:
15981     case GADGET_ID_CONNECTED_ITEMS:
15982     case GADGET_ID_LINE:
15983     case GADGET_ID_ARC:
15984     case GADGET_ID_TEXT:
15985     case GADGET_ID_RECTANGLE:
15986     case GADGET_ID_FILLED_BOX:
15987     case GADGET_ID_FLOOD_FILL:
15988     case GADGET_ID_GRAB_BRUSH:
15989     case GADGET_ID_PICK_ELEMENT:
15990       if (drawing_function != GADGET_ID_PICK_ELEMENT)
15991         last_drawing_function = drawing_function;
15992       drawing_function = id;
15993       draw_with_brush = FALSE;
15994       break;
15995
15996     case GADGET_ID_RANDOM_PLACEMENT:
15997       RandomPlacement(new_element);
15998       break;
15999
16000     case GADGET_ID_ZOOM:
16001       // zoom level editor tile size in or out (or reset to default size)
16002       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
16003                      button == 2 ? ed_tilesize_default :
16004                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
16005
16006       // when using touch device, cycle through all zoom tilesizes
16007       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
16008         ed_tilesize = MICRO_TILESIZE;
16009
16010       // limit zoom level by upper and lower bound
16011       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
16012
16013       InitZoomLevelSettings(ed_tilesize);
16014
16015       if (edit_mode == ED_MODE_DRAWING)
16016       {
16017         DrawDrawingWindow();
16018
16019         // redraw zoom gadget info text
16020         PrintEditorGadgetInfoText(level_editor_gadget[id]);
16021       }
16022
16023       // save current editor zoom tilesize
16024       SaveSetup_AutoSetup();
16025
16026       break;
16027
16028     case GADGET_ID_CUSTOM_COPY_FROM:
16029     case GADGET_ID_CUSTOM_COPY_TO:
16030     case GADGET_ID_CUSTOM_EXCHANGE:
16031       last_custom_copy_mode = id;
16032       last_drawing_function = drawing_function;
16033       break;
16034
16035     case GADGET_ID_CUSTOM_COPY:
16036       CopyCustomElement(properties_element, -1, id);
16037       break;
16038
16039     case GADGET_ID_CUSTOM_PASTE:
16040       CopyCustomElement(-1, properties_element, id);
16041       break;
16042
16043     case GADGET_ID_UNDO:
16044       if (button < 0)   // keep button value (even if modifier keys are pressed)
16045         button = -button;
16046       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
16047         button = 3;
16048
16049       if (button == 1 && undo_buffer_steps == 0)
16050       {
16051         Request("Undo buffer empty!", REQ_CONFIRM);
16052
16053         break;
16054       }
16055       else if (button == 2)
16056       {
16057         break;
16058       }
16059       else if (button == 3 && redo_buffer_steps == 0)
16060       {
16061         Request("Redo buffer empty!", REQ_CONFIRM);
16062
16063         break;
16064       }
16065
16066       if (edit_mode != ED_MODE_DRAWING)
16067         ChangeEditModeWindow(ED_MODE_DRAWING);
16068
16069       if (button == 1)
16070       {
16071         // undo
16072
16073         undo_buffer_position =
16074           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
16075
16076         undo_buffer_steps--;
16077         redo_buffer_steps++;
16078       }
16079       else
16080       {
16081         // redo
16082
16083         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
16084
16085         undo_buffer_steps++;
16086         redo_buffer_steps--;
16087       }
16088
16089       for (x = 0; x < lev_fieldx; x++)
16090         for (y = 0; y < lev_fieldy; y++)
16091           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
16092
16093       // check if undo operation forces change of border style
16094       CheckLevelBorderElement(FALSE);
16095
16096       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
16097
16098       break;
16099
16100     case GADGET_ID_CONF:
16101       if (edit_mode != ED_MODE_LEVELCONFIG)
16102       {
16103         last_edit_mode = edit_mode;
16104
16105         ChangeEditModeWindow(ED_MODE_LEVELCONFIG);
16106       }
16107       else
16108       {
16109         ChangeEditModeWindow(ED_MODE_DRAWING);
16110       }
16111       break;
16112
16113     case GADGET_ID_CLEAR:
16114       if (edit_mode != ED_MODE_DRAWING)
16115         ChangeEditModeWindow(ED_MODE_DRAWING);
16116
16117       for (x = 0; x < MAX_LEV_FIELDX; x++)
16118         for (y = 0; y < MAX_LEV_FIELDY; y++)
16119           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
16120
16121       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
16122
16123       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
16124       break;
16125
16126     case GADGET_ID_SAVE:
16127     {
16128       // saving read-only levels into personal level set modifies global vars
16129       // "leveldir_current" and "level_nr"; restore them after saving level
16130       LevelDirTree *leveldir_former = leveldir_current;
16131       int level_nr_former = level_nr;
16132       char *level_filename;
16133       boolean new_level;
16134
16135       if (leveldir_current->readonly &&
16136           !PrepareSavingIntoPersonalLevelSet())
16137         break;
16138
16139       level_filename = getDefaultLevelFilename(level_nr);
16140       new_level = !fileExists(level_filename);
16141
16142       if (new_level ||
16143           Request("Save this level and kill the old?", REQ_ASK))
16144       {
16145         if (leveldir_former->readonly)
16146           ModifyLevelConfigForSavingIntoPersonalLevelSet(leveldir_former->name);
16147
16148         SetAutomaticNumberOfGemsNeeded();
16149
16150         CopyPlayfield(Tile, level.field);
16151         SaveLevel(level_nr);
16152
16153         level.changed = FALSE;
16154
16155         if (new_level)
16156         {
16157           char level_saved_msg[64];
16158
16159           if (leveldir_former->readonly)
16160             sprintf(level_saved_msg,
16161                     "Level saved as level %d into personal level set!",
16162                     level_nr);
16163           else
16164             strcpy(level_saved_msg, "Level saved!");
16165
16166           Request(level_saved_msg, REQ_CONFIRM);
16167         }
16168       }
16169
16170       // "cd" back to copied-from levelset (in case of saved read-only level)
16171       leveldir_current = leveldir_former;
16172       level_nr = level_nr_former;
16173
16174       break;
16175     }
16176
16177     case GADGET_ID_TEST:
16178       if (LevelChanged())
16179         level.game_version = GAME_VERSION_ACTUAL;
16180
16181       CopyPlayfield(level.field, TileBackup);
16182       CopyPlayfield(Tile, level.field);
16183
16184       CopyNativeLevel_RND_to_Native(&level);
16185
16186       UnmapLevelEditorGadgets();
16187       UndrawSpecialEditorDoor();
16188
16189       CloseDoor(DOOR_CLOSE_ALL);
16190
16191       // needed before playing if editor playfield area has different size
16192       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
16193
16194       // redraw_mask = REDRAW_ALL;
16195
16196       level_editor_test_game = TRUE;
16197
16198       StartGameActions(FALSE, setup.autorecord, level.random_seed);
16199
16200       break;
16201
16202     case GADGET_ID_EXIT:
16203       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
16204       break;
16205
16206     default:
16207       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
16208           id <= GADGET_ID_ELEMENTLIST_LAST)
16209       {
16210         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
16211
16212         new_element = editor_elements[element_position + element_shift];
16213
16214         if (IS_EDITOR_CASCADE(new_element))
16215         {
16216           int i;
16217
16218           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
16219           {
16220             int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
16221             boolean *cascade_value = editor_elements_info[i].setup_cascade_value;
16222
16223             if (*cascade_element == new_element)
16224             {
16225               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
16226               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
16227
16228               // update element selection list
16229               ReinitializeElementList();
16230               ModifyEditorElementList();
16231
16232               // update cascading gadget info text
16233               PrintEditorGadgetInfoText(level_editor_gadget[id]);
16234
16235               // save current editor cascading state
16236               SaveSetup_EditorCascade();
16237
16238               break;
16239             }
16240           }
16241
16242           break;
16243         }
16244
16245         if (last_custom_copy_mode != -1)
16246         {
16247           if (CopyCustomElement(properties_element, new_element,
16248                                 last_custom_copy_mode))
16249           {
16250             ClickOnGadget(level_editor_gadget[last_drawing_function],
16251                           MB_LEFTBUTTON);
16252
16253             last_custom_copy_mode = -1;
16254           }
16255
16256           break;
16257         }
16258
16259         // change element of button used to show palette
16260         if (editor.palette.show_on_element_buttons)
16261           button = last_button;
16262
16263         PickDrawingElement(button, new_element);
16264
16265         if (!stick_element_properties_window &&
16266             drawing_function != GADGET_ID_PICK_ELEMENT &&
16267             !(GetKeyModState() & KMOD_Control))
16268         {
16269           properties_element = new_element;
16270           if (edit_mode == ED_MODE_PROPERTIES)
16271             DrawPropertiesWindow();
16272         }
16273
16274         if (drawing_function == GADGET_ID_PICK_ELEMENT)
16275           ClickOnGadget(level_editor_gadget[last_drawing_function],
16276                         MB_LEFTBUTTON);
16277
16278         if (!use_permanent_palette)
16279           ChangeEditModeWindow(last_edit_mode);
16280       }
16281 #ifdef DEBUG
16282       else if (gi->event.type == GD_EVENT_PRESSED)
16283         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
16284       else if (gi->event.type == GD_EVENT_RELEASED)
16285         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
16286       else if (gi->event.type == GD_EVENT_MOVING)
16287         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
16288       else
16289         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
16290 #endif
16291       break;
16292   }
16293 }
16294
16295 void HandleLevelEditorKeyInput(Key key)
16296 {
16297   char letter = getCharFromKey(key);
16298
16299   if (drawing_function == GADGET_ID_TEXT &&
16300       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
16301   {
16302     if (letter)
16303       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
16304     else if (key == KSYM_Delete || key == KSYM_BackSpace)
16305       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
16306     else if (key == KSYM_Return)
16307       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
16308     else if (key == KSYM_Escape)
16309       DrawLevelText(0, 0, 0, TEXT_END);
16310
16311     return;
16312   }
16313
16314   int id = GADGET_ID_NONE;
16315   int new_element_shift = element_shift;
16316   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
16317   int button = MB_LEFTBUTTON;
16318   int i;
16319
16320   switch (key)
16321   {
16322     case KSYM_Left:
16323       id = GADGET_ID_SCROLL_LEFT;
16324       break;
16325     case KSYM_Right:
16326       id = GADGET_ID_SCROLL_RIGHT;
16327       break;
16328     case KSYM_Up:
16329       id = GADGET_ID_SCROLL_UP;
16330       break;
16331     case KSYM_Down:
16332       id = GADGET_ID_SCROLL_DOWN;
16333       break;
16334
16335     case KSYM_Page_Up:
16336     case KSYM_Page_Down:
16337       step *= (key == KSYM_Page_Up ? -1 : +1);
16338       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
16339
16340       if (element_shift < 0)
16341         element_shift = 0;
16342       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
16343         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
16344
16345       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
16346                    GDI_SCROLLBAR_ITEM_POSITION,
16347                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
16348
16349       ModifyEditorElementList();
16350
16351       break;
16352
16353     case KSYM_Home:
16354     case KSYM_End:
16355       element_shift = (key == KSYM_Home ? 0 :
16356                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
16357
16358       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
16359                    GDI_SCROLLBAR_ITEM_POSITION,
16360                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
16361
16362       ModifyEditorElementList();
16363
16364       break;
16365
16366     case KSYM_Insert:
16367     case KSYM_Delete:
16368
16369       // this is needed to prevent interference with running "True X-Mouse"
16370       if (GetKeyModStateFromEvents() & KMOD_Control)
16371         break;
16372
16373       // check for last or next editor cascade block in element list
16374       for (i = 0; i < num_editor_elements; i++)
16375       {
16376         if ((key == KSYM_Insert && i == element_shift) ||
16377             (key == KSYM_Delete && new_element_shift > element_shift))
16378           break;
16379
16380         // jump to next cascade block (or to start of element list)
16381         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
16382           new_element_shift = i;
16383       }
16384
16385       if (i < num_editor_elements)
16386         element_shift = new_element_shift;
16387
16388       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
16389         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
16390
16391       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
16392                    GDI_SCROLLBAR_ITEM_POSITION,
16393                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
16394
16395       ModifyEditorElementList();
16396
16397       break;
16398
16399     case KSYM_Escape:
16400       if (edit_mode == ED_MODE_DRAWING)
16401         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
16402       else if (edit_mode == ED_MODE_LEVELCONFIG)
16403         HandleControlButtons(level_editor_gadget[GADGET_ID_CONF]);
16404       else if (edit_mode == ED_MODE_PROPERTIES)
16405         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
16406       else if (edit_mode == ED_MODE_PALETTE)
16407         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
16408       else              // should never happen
16409         ChangeEditModeWindow(ED_MODE_DRAWING);
16410
16411       break;
16412
16413     default:
16414       break;
16415   }
16416
16417   if (id != GADGET_ID_NONE)
16418     ClickOnGadget(level_editor_gadget[id], button);
16419   else if (letter == '1' || letter == '?')
16420     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
16421   else if (letter == '2')
16422     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
16423   else if (letter == '3')
16424     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
16425   else if (letter == '.')
16426     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
16427   else if (letter == 'U')
16428     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
16429   else if (letter == '-' || key == KSYM_KP_Subtract)
16430     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
16431   else if (letter == '0' || key == KSYM_KP_0)
16432     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
16433   else if (letter == '+' || key == KSYM_KP_Add ||
16434            letter == '=')       // ("Shift-=" is "+" on US keyboards)
16435     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
16436   else if (key == KSYM_Return ||
16437            key == KSYM_space ||
16438            key == setup.shortcut.toggle_pause)
16439     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
16440   else
16441     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
16442       if (letter && letter == controlbutton_info[i].shortcut)
16443         if (!anyTextGadgetActive())
16444           ClickOnGadget(level_editor_gadget[i], button);
16445
16446   if (draw_with_brush)
16447   {
16448     if (letter == 'x')
16449       FlipBrushX();
16450     else if (letter == 'y')
16451       FlipBrushY();
16452     else if (letter == 'z')
16453       RotateBrush();
16454   }
16455 }
16456
16457 static void HandleLevelEditorIdle_Properties(void)
16458 {
16459   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
16460   int x = editor.settings.element_graphic.x + element_border;
16461   int y = editor.settings.element_graphic.y + element_border;
16462   static DelayCounter action_delay = { 0 };
16463   int i;
16464
16465   action_delay.value = GameFrameDelay;
16466
16467   if (!DelayReached(&action_delay))
16468     return;
16469
16470   for (i = 0; i < ED_NUM_SELECTBOX; i++)
16471   {
16472     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
16473
16474     if (gi->mapped && gi->active && gi->selectbox.open)
16475       return;
16476   }
16477
16478   DrawEditorElementAnimation(SX + x, SY + y);
16479
16480   redraw_mask |= REDRAW_FIELD;
16481
16482   FrameCounter++;       // increase animation frame counter
16483 }
16484
16485 static void HandleLevelEditorIdle_Drawing(void)
16486 {
16487   static boolean last_highlighted = FALSE;
16488   static boolean last_highlighted_similar = FALSE;
16489   boolean highlighted = (GetKeyModState() & KMOD_Alt);
16490   boolean highlighted_similar = (GetKeyModState() & KMOD_Shift);
16491
16492   if (highlighted != last_highlighted ||
16493       (highlighted && highlighted_similar != last_highlighted_similar))
16494   {
16495     DrawAreaElementHighlight(highlighted, highlighted_similar);
16496
16497     redraw_mask |= REDRAW_FIELD;
16498   }
16499
16500   last_highlighted = highlighted;
16501   last_highlighted_similar = highlighted_similar;
16502 }
16503
16504 void HandleLevelEditorIdle(void)
16505 {
16506   if (edit_mode == ED_MODE_PROPERTIES)
16507     HandleLevelEditorIdle_Properties();
16508   else if (edit_mode == ED_MODE_DRAWING)
16509     HandleLevelEditorIdle_Drawing();
16510 }
16511
16512 static void ClearEditorGadgetInfoText(void)
16513 {
16514   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
16515 }
16516
16517 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
16518 {
16519   char infotext[MAX_OUTPUT_LINESIZE + 1];
16520   int max_infotext_len = getMaxInfoTextLength();
16521
16522   if (gi == NULL || strlen(gi->info_text) == 0)
16523     return;
16524
16525   strncpy(infotext, gi->info_text, max_infotext_len);
16526   infotext[max_infotext_len] = '\0';
16527
16528   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
16529   {
16530     int key = controlbutton_info[gi->custom_id].shortcut;
16531
16532     if (key)
16533     {
16534       char shortcut[MAX_OUTPUT_LINESIZE + 1];
16535
16536       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
16537         sprintf(shortcut, " ('.' or '%c')", key);
16538       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
16539         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
16540       else if (gi->custom_id == GADGET_ID_TEST)
16541         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
16542       else if (gi->custom_id == GADGET_ID_UNDO)
16543         sprintf(shortcut, " ('%c/Shift-U')", key);
16544       else if (gi->custom_id == GADGET_ID_ZOOM)
16545         sprintf(shortcut, " ('%c', '0', '-')", key);
16546       else
16547         sprintf(shortcut, " ('%s%c')",
16548                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
16549
16550       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
16551         strcat(infotext, shortcut);
16552     }
16553   }
16554
16555   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
16556 }
16557
16558 void HandleEditorGadgetInfoText(void *ptr)
16559 {
16560   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
16561
16562   if (game_status != GAME_MODE_EDITOR)
16563     return;
16564
16565   ClearEditorGadgetInfoText();
16566
16567   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
16568     return;
16569
16570   // misuse this function to delete brush cursor, if needed
16571   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
16572     DeleteBrushFromCursor();
16573
16574   PrintEditorGadgetInfoText(gi);
16575 }
16576
16577 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
16578 {
16579   int id = gi->custom_id;
16580   int type_id = gi->custom_type_id;
16581   int sx = gi->event.x;
16582   int sy = gi->event.y;
16583   int lx = sx + level_xpos;
16584   int ly = sy + level_ypos;
16585   int min_sx = 0, min_sy = 0;
16586   int max_sx = gi->drawing.area_xsize - 1;
16587   int max_sy = gi->drawing.area_ysize - 1;
16588   int actual_drawing_function = drawing_function;
16589   int max_infotext_len = getMaxInfoTextLength();
16590   char infotext[MAX_OUTPUT_LINESIZE + 1];
16591
16592   infotext[0] = '\0';           // start with empty info text
16593
16594   // pressed Control key: simulate picking element
16595   if (GetKeyModState() & KMOD_Control)
16596     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
16597
16598   ClearEditorGadgetInfoText();
16599
16600   if (gi->event.type == GD_EVENT_INFO_LEAVING)
16601     return;
16602
16603   // make sure to stay inside drawing area boundaries
16604   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
16605   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
16606
16607   if (id == GADGET_ID_DRAWING_LEVEL)
16608   {
16609     if (button_status)
16610     {
16611       int min_lx = 0, min_ly = 0;
16612       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
16613
16614       // get positions inside level field
16615       lx = sx + level_xpos;
16616       ly = sy + level_ypos;
16617
16618       // make sure to stay inside level field boundaries
16619       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
16620       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
16621
16622       // correct drawing area positions accordingly
16623       sx = lx - level_xpos;
16624       sy = ly - level_ypos;
16625     }
16626
16627     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16628     {
16629       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
16630       {
16631         static int start_lx = 0;
16632         static int start_ly = 0;
16633         char *text;
16634
16635         if (gi->event.type == GD_EVENT_PRESSED)
16636         {
16637           start_lx = lx;
16638           start_ly = ly;
16639         }
16640
16641         switch (actual_drawing_function)
16642         {
16643           case GADGET_ID_SINGLE_ITEMS:
16644             text = "Drawing single items";
16645             break;
16646           case GADGET_ID_CONNECTED_ITEMS:
16647             text = "Drawing connected items";
16648             break;
16649           case GADGET_ID_LINE:
16650             text = "Drawing line";
16651             break;
16652           case GADGET_ID_ARC:
16653             text = "Drawing arc";
16654             break;
16655           case GADGET_ID_TEXT:
16656             text = "Setting text cursor";
16657             break;
16658           case GADGET_ID_RECTANGLE:
16659             text = "Drawing rectangle";
16660             break;
16661           case GADGET_ID_FILLED_BOX:
16662             text = "Drawing filled box";
16663             break;
16664           case GADGET_ID_FLOOD_FILL:
16665             text = "Flood fill";
16666             break;
16667           case GADGET_ID_GRAB_BRUSH:
16668             text = "Grabbing brush";
16669             break;
16670           case GADGET_ID_PICK_ELEMENT:
16671             text = "Picking element";
16672             break;
16673
16674           default:
16675             text = "Drawing position";
16676             break;
16677         }
16678
16679         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16680           sprintf(infotext, "%s: %d, %d", text, lx, ly);
16681         else
16682           sprintf(infotext, "%s: %d, %d", text,
16683                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
16684       }
16685       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16686         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
16687       else
16688         sprintf(infotext, "Level position: %d, %d", lx, ly);
16689     }
16690
16691     // misuse this function to draw brush cursor, if needed
16692     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
16693     {
16694       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16695         CopyBrushToCursor(sx, sy);
16696       else
16697         DeleteBrushFromCursor();
16698     }
16699
16700     if (!draw_with_brush)
16701       UpdateBrushPosition(sx, sy);
16702   }
16703   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16704   {
16705     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
16706     int element = drawingarea_info[type_id].value[pos];
16707
16708     strncpy(infotext, getElementInfoText(element), max_infotext_len);
16709   }
16710   else
16711   {
16712     if (id == GADGET_ID_CUSTOM_CONTENT)
16713       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
16714     else if (id == GADGET_ID_GROUP_CONTENT)
16715       sprintf(infotext, "group element position: %d", sx + 1);
16716     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
16717              id <= GADGET_ID_YAMYAM_CONTENT_7)
16718       sprintf(infotext, "content area %d position: %d, %d",
16719               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
16720     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
16721              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
16722       sprintf(infotext, "content area %d position: %d, %d",
16723               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
16724     else if (id == GADGET_ID_ANDROID_CONTENT)
16725       sprintf(infotext, "android element position: %d", sx + 1);
16726     else if (drawingarea_info[type_id].infotext != NULL)
16727       strcpy(infotext, drawingarea_info[type_id].infotext);
16728   }
16729
16730   infotext[max_infotext_len] = '\0';
16731
16732   if (strlen(infotext) > 0)
16733     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
16734 }
16735
16736 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
16737                             boolean quick_quit)
16738 {
16739   if (!ask_if_level_has_changed ||
16740       !LevelChanged() ||
16741       Request("Level has changed! Exit without saving?",
16742               REQ_ASK | REQ_STAY_OPEN))
16743   {
16744     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
16745     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
16746
16747     // draw normal door
16748     UndrawSpecialEditorDoor();
16749
16750     // use door animation if door 1 viewport is unchanged and contains toolbox
16751     if (useEditorDoorAnimation())
16752       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
16753
16754     // close editor doors if viewport definition is the same as in main menu
16755     if (vp_door_1->x      == DX     &&
16756         vp_door_1->y      == DY     &&
16757         vp_door_1->width  == DXSIZE &&
16758         vp_door_1->height == DYSIZE &&
16759         vp_door_2->x      == VX     &&
16760         vp_door_2->y      == VY     &&
16761         vp_door_2->width  == VXSIZE &&
16762         vp_door_2->height == VYSIZE)
16763       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
16764     else
16765       SetDoorState(DOOR_CLOSE_ALL);
16766
16767     BackToFront();
16768
16769     if (quick_quit)
16770       FadeSkipNextFadeIn();
16771
16772     SetGameStatus(GAME_MODE_MAIN);
16773
16774     DrawMainMenu();
16775   }
16776   else
16777   {
16778     if (!global.use_envelope_request)
16779     {
16780       CloseDoor(DOOR_CLOSE_1);
16781       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
16782     }
16783   }
16784 }