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_AMOEBA_CONTENT_TOO_BIG,
 561   GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED,
 562   GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
 563   GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
 564   GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
 565   GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
 566   GADGET_ID_BD_ACID_EATS_ELEMENT,
 567   GADGET_ID_BD_ACID_TURNS_TO_ELEMENT,
 568   GADGET_ID_BD_BITER_EATS_ELEMENT,
 569   GADGET_ID_START_ELEMENT,
 570   GADGET_ID_ARTWORK_ELEMENT,
 571   GADGET_ID_EXPLOSION_ELEMENT,
 572   GADGET_ID_INVENTORY_CONTENT,
 573   GADGET_ID_MM_BALL_CONTENT,
 574   GADGET_ID_CUSTOM_GRAPHIC,
 575   GADGET_ID_CUSTOM_CONTENT,
 576   GADGET_ID_CUSTOM_MOVE_ENTER,
 577   GADGET_ID_CUSTOM_MOVE_LEAVE,
 578   GADGET_ID_CUSTOM_CHANGE_TARGET,
 579   GADGET_ID_CUSTOM_CHANGE_CONTENT,
 580   GADGET_ID_CUSTOM_CHANGE_TRIGGER,
 581   GADGET_ID_CUSTOM_CHANGE_ACTION,
 582   GADGET_ID_GROUP_CONTENT,
 583   GADGET_ID_RANDOM_BACKGROUND,
 584
 585   // text input identifiers
 586
 587   GADGET_ID_LEVEL_NAME,
 588   GADGET_ID_LEVEL_AUTHOR,
 589   GADGET_ID_LEVELSET_NAME,
 590   GADGET_ID_LEVELSET_AUTHOR,
 591   GADGET_ID_ELEMENT_NAME,
 592
 593   // text area identifiers
 594
 595   GADGET_ID_ENVELOPE_INFO,
 596
 597   // selectbox identifiers
 598
 599   GADGET_ID_TIME_OR_STEPS,
 600   GADGET_ID_TIME_SCORE_BASE,
 601   GADGET_ID_GAME_ENGINE_TYPE,
 602   GADGET_ID_BD_SCHEDULING_TYPE,
 603   GADGET_ID_LEVELSET_SAVE_MODE,
 604   GADGET_ID_WIND_DIRECTION,
 605   GADGET_ID_PLAYER_SPEED,
 606   GADGET_ID_MM_BALL_CHOICE_MODE,
 607   GADGET_ID_CUSTOM_WALK_TO_ACTION,
 608   GADGET_ID_CUSTOM_EXPLOSION_TYPE,
 609   GADGET_ID_CUSTOM_DEADLINESS,
 610   GADGET_ID_CUSTOM_MOVE_PATTERN,
 611   GADGET_ID_CUSTOM_MOVE_DIRECTION,
 612   GADGET_ID_CUSTOM_MOVE_STEPSIZE,
 613   GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
 614   GADGET_ID_CUSTOM_SMASH_TARGETS,
 615   GADGET_ID_CUSTOM_SLIPPERY_TYPE,
 616   GADGET_ID_CUSTOM_ACCESS_TYPE,
 617   GADGET_ID_CUSTOM_ACCESS_LAYER,
 618   GADGET_ID_CUSTOM_ACCESS_PROTECTED,
 619   GADGET_ID_CUSTOM_ACCESS_DIRECTION,
 620   GADGET_ID_CHANGE_TIME_UNITS,
 621   GADGET_ID_CHANGE_DIRECT_ACTION,
 622   GADGET_ID_CHANGE_OTHER_ACTION,
 623   GADGET_ID_CHANGE_SIDE,
 624   GADGET_ID_CHANGE_PLAYER,
 625   GADGET_ID_CHANGE_PAGE,
 626   GADGET_ID_CHANGE_REPLACE_WHEN,
 627   GADGET_ID_ACTION_TYPE,
 628   GADGET_ID_ACTION_MODE,
 629   GADGET_ID_ACTION_ARG,
 630   GADGET_ID_SELECT_CHANGE_PAGE,
 631   GADGET_ID_GROUP_CHOICE_MODE,
 632
 633   // textbutton identifiers
 634
 635   GADGET_ID_LEVELCONFIG_LEVEL,
 636   GADGET_ID_LEVELCONFIG_LEVELSET,
 637   GADGET_ID_LEVELCONFIG_EDITOR,
 638   GADGET_ID_LEVELCONFIG_ENGINE,
 639   GADGET_ID_PROPERTIES_INFO,
 640   GADGET_ID_PROPERTIES_CONFIG,
 641   GADGET_ID_PROPERTIES_CONFIG_1,
 642   GADGET_ID_PROPERTIES_CONFIG_2,
 643   GADGET_ID_PROPERTIES_CHANGE,
 644   GADGET_ID_SAVE_AS_TEMPLATE_1,
 645   GADGET_ID_SAVE_AS_TEMPLATE_2,
 646   GADGET_ID_SAVE_LEVELSET,
 647   GADGET_ID_ADD_CHANGE_PAGE,
 648   GADGET_ID_DEL_CHANGE_PAGE,
 649
 650   // graphicbutton identifiers
 651
 652   GADGET_ID_PREV_CHANGE_PAGE,
 653   GADGET_ID_NEXT_CHANGE_PAGE,
 654   GADGET_ID_COPY_CHANGE_PAGE,
 655   GADGET_ID_PASTE_CHANGE_PAGE,
 656
 657   // gadgets for scrolling of drawing area
 658
 659   GADGET_ID_SCROLL_UP,
 660   GADGET_ID_SCROLL_DOWN,
 661   GADGET_ID_SCROLL_LEFT,
 662   GADGET_ID_SCROLL_RIGHT,
 663   GADGET_ID_SCROLL_HORIZONTAL,
 664   GADGET_ID_SCROLL_VERTICAL,
 665
 666   // gadgets for scrolling element list
 667
 668   GADGET_ID_SCROLL_LIST_UP,
 669   GADGET_ID_SCROLL_LIST_DOWN,
 670   GADGET_ID_SCROLL_LIST_VERTICAL,
 671
 672   // checkbuttons/radiobuttons for level/element properties
 673
 674   GADGET_ID_AUTO_COUNT_GEMS,
 675   GADGET_ID_RATE_TIME_OVER_SCORE,
 676   GADGET_ID_USE_LEVELSET_ARTWORK,
 677   GADGET_ID_COPY_LEVEL_TEMPLATE,
 678   GADGET_ID_RANDOM_PERCENTAGE,
 679   GADGET_ID_RANDOM_QUANTITY,
 680   GADGET_ID_RANDOM_RESTRICTED,
 681   GADGET_ID_BD_INTERMISSION,
 682   GADGET_ID_BD_PAL_TIMING,
 683   GADGET_ID_BD_LINE_SHIFTING_BORDERS,
 684   GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW,
 685   GADGET_ID_BD_SHORT_EXPLOSIONS,
 686   GADGET_ID_BD_GRAVITY_AFFECTS_ALL,
 687   GADGET_ID_STICK_ELEMENT,
 688   GADGET_ID_EM_SLIPPERY_GEMS,
 689   GADGET_ID_EM_EXPLODES_BY_FIRE,
 690   GADGET_ID_USE_SPRING_BUG,
 691   GADGET_ID_USE_TIME_ORB_BUG,
 692   GADGET_ID_USE_LIFE_BUGS,
 693   GADGET_ID_RANDOM_BALL_CONTENT,
 694   GADGET_ID_INITIAL_BALL_ACTIVE,
 695   GADGET_ID_GROW_INTO_DIGGABLE,
 696   GADGET_ID_SB_FIELDS_NEEDED,
 697   GADGET_ID_SB_OBJECTS_NEEDED,
 698   GADGET_ID_AUTO_EXIT_SOKOBAN,
 699   GADGET_ID_SOLVED_BY_ONE_PLAYER,
 700   GADGET_ID_FINISH_DIG_COLLECT,
 701   GADGET_ID_KEEP_WALKABLE_CE,
 702   GADGET_ID_CONTINUOUS_SNAPPING,
 703   GADGET_ID_BLOCK_SNAP_FIELD,
 704   GADGET_ID_BLOCK_LAST_FIELD,
 705   GADGET_ID_SP_BLOCK_LAST_FIELD,
 706   GADGET_ID_INSTANT_RELOCATION,
 707   GADGET_ID_SHIFTED_RELOCATION,
 708   GADGET_ID_LAZY_RELOCATION,
 709   GADGET_ID_USE_START_ELEMENT,
 710   GADGET_ID_USE_ARTWORK_ELEMENT,
 711   GADGET_ID_USE_EXPLOSION_ELEMENT,
 712   GADGET_ID_INITIAL_GRAVITY,
 713   GADGET_ID_USE_INITIAL_INVENTORY,
 714   GADGET_ID_CAN_PASS_TO_WALKABLE,
 715   GADGET_ID_CAN_FALL_INTO_ACID,
 716   GADGET_ID_CAN_MOVE_INTO_ACID,
 717   GADGET_ID_DONT_COLLIDE_WITH,
 718   GADGET_ID_BD_DIAGONAL_MOVEMENTS,
 719   GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE,
 720   GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
 721   GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING,
 722   GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
 723   GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
 724   GADGET_ID_BD_AMOEBA_START_IMMEDIATELY,
 725   GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
 726   GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS,
 727   GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER,
 728   GADGET_ID_BD_VOODOO_DIES_BY_ROCK,
 729   GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
 730   GADGET_ID_BD_SLIME_IS_PREDICTABLE,
 731   GADGET_ID_ENVELOPE_AUTOWRAP,
 732   GADGET_ID_ENVELOPE_CENTERED,
 733   GADGET_ID_MM_LASER_RED,
 734   GADGET_ID_MM_LASER_GREEN,
 735   GADGET_ID_MM_LASER_BLUE,
 736   GADGET_ID_DF_LASER_RED,
 737   GADGET_ID_DF_LASER_GREEN,
 738   GADGET_ID_DF_LASER_BLUE,
 739   GADGET_ID_ROTATE_MM_BALL_CONTENT,
 740   GADGET_ID_EXPLODE_MM_BALL,
 741   GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 742   GADGET_ID_CUSTOM_CAN_EXPLODE,
 743   GADGET_ID_CUSTOM_EXPLODE_FIRE,
 744   GADGET_ID_CUSTOM_EXPLODE_SMASH,
 745   GADGET_ID_CUSTOM_EXPLODE_IMPACT,
 746   GADGET_ID_CUSTOM_WALK_TO_OBJECT,
 747   GADGET_ID_CUSTOM_DEADLY,
 748   GADGET_ID_CUSTOM_CAN_MOVE,
 749   GADGET_ID_CUSTOM_CAN_FALL,
 750   GADGET_ID_CUSTOM_CAN_SMASH,
 751   GADGET_ID_CUSTOM_SLIPPERY,
 752   GADGET_ID_CUSTOM_ACCESSIBLE,
 753   GADGET_ID_CUSTOM_GRAV_REACHABLE,
 754   GADGET_ID_CUSTOM_USE_LAST_VALUE,
 755   GADGET_ID_CUSTOM_USE_GRAPHIC,
 756   GADGET_ID_CUSTOM_USE_TEMPLATE_1,
 757   GADGET_ID_CUSTOM_USE_TEMPLATE_2,
 758   GADGET_ID_CUSTOM_USE_TEMPLATE_3,
 759   GADGET_ID_CUSTOM_CAN_CHANGE,
 760   GADGET_ID_CHANGE_USE_CONTENT,
 761   GADGET_ID_CHANGE_USE_EXPLOSION,
 762   GADGET_ID_CHANGE_ONLY_COMPLETE,
 763   GADGET_ID_CHANGE_USE_RANDOM,
 764   GADGET_ID_CHANGE_HAS_ACTION,
 765   GADGET_ID_CHANGE_DELAY,
 766   GADGET_ID_CHANGE_BY_DIRECT_ACT,
 767   GADGET_ID_CHANGE_BY_OTHER_ACT,
 768
 769   NUM_STATIC_GADGET_IDS
 770 };
 771
 772 // gadgets for buttons in element list (dynamic)
 773 #define GADGET_ID_ELEMENTLIST_FIRST     (NUM_STATIC_GADGET_IDS)
 774 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 775                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 776
 777 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 778
 779 // radio button numbers
 780 enum
 781 {
 782   RADIO_NR_NONE,
 783   RADIO_NR_DRAWING_TOOLBOX,
 784   RADIO_NR_RANDOM_ELEMENTS
 785 };
 786
 787 // values for counter gadgets
 788 enum
 789 {
 790   ED_COUNTER_ID_SELECT_LEVEL,
 791   ED_COUNTER_ID_LEVEL_XSIZE,
 792   ED_COUNTER_ID_LEVEL_YSIZE,
 793   ED_COUNTER_ID_LEVEL_GEMSLIMIT,
 794   ED_COUNTER_ID_LEVEL_TIMELIMIT,
 795   ED_COUNTER_ID_LEVEL_TIMESCORE,
 796   ED_COUNTER_ID_LEVEL_RANDOM_SEED,
 797   ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
 798   ED_COUNTER_ID_LEVEL_RANDOM,
 799   ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
 800   ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
 801   ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
 802   ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
 803   ED_COUNTER_ID_BD_PUSHING_PROB,
 804   ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
 805   ED_COUNTER_ID_ELEMENT_VALUE1,
 806   ED_COUNTER_ID_ELEMENT_VALUE2,
 807   ED_COUNTER_ID_ELEMENT_VALUE3,
 808   ED_COUNTER_ID_ELEMENT_VALUE4,
 809   ED_COUNTER_ID_YAMYAM_CONTENT,
 810   ED_COUNTER_ID_BALL_CONTENT,
 811   ED_COUNTER_ID_ANDROID_CONTENT,
 812   ED_COUNTER_ID_ENVELOPE_XSIZE,
 813   ED_COUNTER_ID_ENVELOPE_YSIZE,
 814   ED_COUNTER_ID_INVENTORY_SIZE,
 815   ED_COUNTER_ID_MM_BALL_CONTENT,
 816   ED_COUNTER_ID_CUSTOM_SCORE,
 817   ED_COUNTER_ID_CUSTOM_GEMCOUNT,
 818   ED_COUNTER_ID_CUSTOM_VALUE_FIX,
 819   ED_COUNTER_ID_CUSTOM_VALUE_RND,
 820   ED_COUNTER_ID_PUSH_DELAY_FIX,
 821   ED_COUNTER_ID_PUSH_DELAY_RND,
 822   ED_COUNTER_ID_DROP_DELAY_FIX,
 823   ED_COUNTER_ID_DROP_DELAY_RND,
 824   ED_COUNTER_ID_MOVE_DELAY_FIX,
 825   ED_COUNTER_ID_MOVE_DELAY_RND,
 826   ED_COUNTER_ID_STEP_DELAY_FIX,
 827   ED_COUNTER_ID_STEP_DELAY_RND,
 828   ED_COUNTER_ID_EXPLOSION_DELAY,
 829   ED_COUNTER_ID_IGNITION_DELAY,
 830   ED_COUNTER_ID_GROUP_CONTENT,
 831   ED_COUNTER_ID_CHANGE_DELAY_FIX,
 832   ED_COUNTER_ID_CHANGE_DELAY_RND,
 833   ED_COUNTER_ID_CHANGE_CONT_RND,
 834
 835   ED_NUM_COUNTERBUTTONS
 836 };
 837
 838 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 839 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 840 #define ED_COUNTER_ID_LEVELSET_FIRST    ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 841 #define ED_COUNTER_ID_LEVELSET_LAST     ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 842 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 843 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 844
 845 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 846 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 847 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 848 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 849 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 850 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 851
 852 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 853 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 854
 855 // values for scrollbutton gadgets
 856 enum
 857 {
 858   ED_SCROLLBUTTON_ID_AREA_UP,
 859   ED_SCROLLBUTTON_ID_AREA_DOWN,
 860   ED_SCROLLBUTTON_ID_AREA_LEFT,
 861   ED_SCROLLBUTTON_ID_AREA_RIGHT,
 862   ED_SCROLLBUTTON_ID_LIST_UP,
 863   ED_SCROLLBUTTON_ID_LIST_DOWN,
 864
 865   ED_NUM_SCROLLBUTTONS
 866 };
 867
 868 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 869 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 870
 871 // values for scrollbar gadgets
 872 enum
 873 {
 874   ED_SCROLLBAR_ID_AREA_HORIZONTAL,
 875   ED_SCROLLBAR_ID_AREA_VERTICAL,
 876   ED_SCROLLBAR_ID_LIST_VERTICAL,
 877
 878   ED_NUM_SCROLLBARS
 879 };
 880
 881 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 882 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 883
 884 // values for text input gadgets
 885 enum
 886 {
 887   ED_TEXTINPUT_ID_LEVEL_NAME,
 888   ED_TEXTINPUT_ID_LEVEL_AUTHOR,
 889   ED_TEXTINPUT_ID_LEVELSET_NAME,
 890   ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
 891   ED_TEXTINPUT_ID_ELEMENT_NAME,
 892
 893   ED_NUM_TEXTINPUT
 894 };
 895
 896 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 897 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 898
 899 #define ED_TEXTINPUT_ID_LEVELSET_FIRST  ED_TEXTINPUT_ID_LEVELSET_NAME
 900 #define ED_TEXTINPUT_ID_LEVELSET_LAST   ED_TEXTINPUT_ID_LEVELSET_AUTHOR
 901
 902 // values for text area gadgets
 903 enum
 904 {
 905   ED_TEXTAREA_ID_ENVELOPE_INFO,
 906
 907   ED_NUM_TEXTAREAS
 908 };
 909
 910 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 911 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 912
 913 // values for selectbox gadgets
 914 enum
 915 {
 916   ED_SELECTBOX_ID_TIME_OR_STEPS,
 917   ED_SELECTBOX_ID_TIME_SCORE_BASE,
 918   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
 919   ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
 920   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
 921   ED_SELECTBOX_ID_WIND_DIRECTION,
 922   ED_SELECTBOX_ID_PLAYER_SPEED,
 923   ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
 924   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
 925   ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
 926   ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
 927   ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
 928   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
 929   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
 930   ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
 931   ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
 932   ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
 933   ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
 934   ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
 935   ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
 936   ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
 937   ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
 938   ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
 939   ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
 940   ED_SELECTBOX_ID_CHANGE_SIDE,
 941   ED_SELECTBOX_ID_CHANGE_PLAYER,
 942   ED_SELECTBOX_ID_CHANGE_PAGE,
 943   ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
 944   ED_SELECTBOX_ID_ACTION_TYPE,
 945   ED_SELECTBOX_ID_ACTION_MODE,
 946   ED_SELECTBOX_ID_ACTION_ARG,
 947   ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
 948   ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
 949
 950   ED_NUM_SELECTBOX
 951 };
 952
 953 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 954 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 955
 956 #define ED_SELECTBOX_ID_LEVELSET_FIRST  ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 957 #define ED_SELECTBOX_ID_LEVELSET_LAST   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 958
 959 #define ED_SELECTBOX_ID_ENGINE_FIRST    ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 960 #define ED_SELECTBOX_ID_ENGINE_LAST     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 961
 962 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 963 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 964 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 965 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 966 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 967 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 968
 969 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 970 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 971
 972 // values for textbutton gadgets
 973 enum
 974 {
 975   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
 976   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
 977   ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
 978   ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
 979   ED_TEXTBUTTON_ID_PROPERTIES_INFO,
 980   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
 981   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
 982   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
 983   ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
 984   ED_TEXTBUTTON_ID_SAVE_LEVELSET,
 985   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
 986   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
 987   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
 988   ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
 989
 990   ED_NUM_TEXTBUTTONS
 991 };
 992
 993 #define ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
 994 #define ED_TAB_BUTTON_ID_LEVELCONFIG_LAST  ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
 995
 996 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
 997 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 998
 999 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
1000 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
1001
1002 // values for graphicbutton gadgets
1003 enum
1004 {
1005   ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
1006   ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
1007   ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
1008   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
1009
1010   ED_NUM_GRAPHICBUTTONS
1011 };
1012
1013 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
1014 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
1015
1016 // values for checkbutton gadgets
1017 enum
1018 {
1019   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
1020   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
1021   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
1022   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
1023   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
1024   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
1025   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
1026   ED_CHECKBUTTON_ID_BD_INTERMISSION,
1027   ED_CHECKBUTTON_ID_BD_PAL_TIMING,
1028   ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
1029   ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
1030   ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
1031   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
1032   ED_CHECKBUTTON_ID_STICK_ELEMENT,
1033   ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
1034   ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
1035   ED_CHECKBUTTON_ID_USE_SPRING_BUG,
1036   ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
1037   ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
1038   ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
1039   ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
1040   ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
1041   ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
1042   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
1043   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
1044   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
1045   ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
1046   ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
1047   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
1048   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
1049   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
1050   ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
1051   ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
1052   ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
1053   ED_CHECKBUTTON_ID_LAZY_RELOCATION,
1054   ED_CHECKBUTTON_ID_USE_START_ELEMENT,
1055   ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
1056   ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
1057   ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
1058   ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
1059   ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
1060   ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
1061   ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
1062   ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
1063   ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
1064   ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
1065   ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
1066   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
1067   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
1068   ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
1069   ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
1070   ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
1071   ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
1072   ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
1073   ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
1074   ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
1075   ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE,
1076   ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
1077   ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
1078   ED_CHECKBUTTON_ID_MM_LASER_RED,
1079   ED_CHECKBUTTON_ID_MM_LASER_GREEN,
1080   ED_CHECKBUTTON_ID_MM_LASER_BLUE,
1081   ED_CHECKBUTTON_ID_DF_LASER_RED,
1082   ED_CHECKBUTTON_ID_DF_LASER_GREEN,
1083   ED_CHECKBUTTON_ID_DF_LASER_BLUE,
1084   ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
1085   ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
1086   ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
1087   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
1088   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
1089   ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
1090   ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
1091   ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
1092   ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
1093   ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
1094   ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
1095   ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
1096   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
1097   ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
1098   ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
1099   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
1100   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
1101   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
1102   ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
1103   ED_CHECKBUTTON_ID_CHANGE_DELAY,
1104   ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
1105   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
1106   ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
1107   ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
1108   ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
1109   ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
1110   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
1111
1112   ED_NUM_CHECKBUTTONS
1113 };
1114
1115 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
1116 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
1117
1118 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
1119 #define ED_CHECKBUTTON_ID_LEVELSET_LAST  ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
1120
1121 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
1122 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
1123
1124 #define ED_CHECKBUTTON_ID_ENGINE_FIRST  ED_CHECKBUTTON_ID_BD_INTERMISSION
1125 #define ED_CHECKBUTTON_ID_ENGINE_LAST   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL
1126
1127 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
1128 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
1129 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
1130 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
1131 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
1132 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
1133
1134 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
1135 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
1136
1137 // values for radiobutton gadgets
1138 enum
1139 {
1140   ED_RADIOBUTTON_ID_PERCENTAGE,
1141   ED_RADIOBUTTON_ID_QUANTITY,
1142
1143   ED_NUM_RADIOBUTTONS
1144 };
1145
1146 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
1147 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
1148
1149 // values for drawing area gadgets
1150 enum
1151 {
1152   ED_DRAWING_ID_DRAWING_LEVEL,
1153   ED_DRAWING_ID_YAMYAM_CONTENT_0,
1154   ED_DRAWING_ID_YAMYAM_CONTENT_1,
1155   ED_DRAWING_ID_YAMYAM_CONTENT_2,
1156   ED_DRAWING_ID_YAMYAM_CONTENT_3,
1157   ED_DRAWING_ID_YAMYAM_CONTENT_4,
1158   ED_DRAWING_ID_YAMYAM_CONTENT_5,
1159   ED_DRAWING_ID_YAMYAM_CONTENT_6,
1160   ED_DRAWING_ID_YAMYAM_CONTENT_7,
1161   ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
1162   ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
1163   ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
1164   ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
1165   ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
1166   ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
1167   ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
1168   ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
1169   ED_DRAWING_ID_ANDROID_CONTENT,
1170   ED_DRAWING_ID_AMOEBA_CONTENT,
1171   ED_DRAWING_ID_BD_SNAP_ELEMENT,
1172   ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
1173   ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
1174   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
1175   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
1176   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
1177   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
1178   ED_DRAWING_ID_BD_ACID_EATS_ELEMENT,
1179   ED_DRAWING_ID_BD_ACID_TURNS_TO_ELEMENT,
1180   ED_DRAWING_ID_BD_BITER_EATS_ELEMENT,
1181   ED_DRAWING_ID_START_ELEMENT,
1182   ED_DRAWING_ID_ARTWORK_ELEMENT,
1183   ED_DRAWING_ID_EXPLOSION_ELEMENT,
1184   ED_DRAWING_ID_INVENTORY_CONTENT,
1185   ED_DRAWING_ID_MM_BALL_CONTENT,
1186   ED_DRAWING_ID_CUSTOM_GRAPHIC,
1187   ED_DRAWING_ID_CUSTOM_CONTENT,
1188   ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
1189   ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
1190   ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
1191   ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
1192   ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
1193   ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
1194   ED_DRAWING_ID_GROUP_CONTENT,
1195   ED_DRAWING_ID_RANDOM_BACKGROUND,
1196
1197   ED_NUM_DRAWING_AREAS
1198 };
1199
1200 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
1201 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
1202
1203
1204 // ----------------------------------------------------------------------------
1205 // some internally used definitions
1206 // ----------------------------------------------------------------------------
1207
1208 // values for CopyLevelToUndoBuffer()
1209 #define UNDO_IMMEDIATE                  0
1210 #define UNDO_ACCUMULATE                 1
1211
1212 // values for scrollbars
1213 #define ED_SCROLL_NO                    0
1214 #define ED_SCROLL_LEFT                  1
1215 #define ED_SCROLL_RIGHT                 2
1216 #define ED_SCROLL_UP                    4
1217 #define ED_SCROLL_DOWN                  8
1218
1219 // screens in the level editor
1220 #define ED_MODE_DRAWING                 0
1221 #define ED_MODE_LEVELCONFIG             1
1222 #define ED_MODE_PROPERTIES              2
1223 #define ED_MODE_PALETTE                 3
1224
1225 // sub-screens in the global settings section
1226 #define ED_MODE_LEVELCONFIG_LEVEL       ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
1227 #define ED_MODE_LEVELCONFIG_LEVELSET    ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET
1228 #define ED_MODE_LEVELCONFIG_EDITOR      ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR
1229 #define ED_MODE_LEVELCONFIG_ENGINE      ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
1230
1231 // sub-screens in the element properties section
1232 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1233 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1234 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1235 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1236 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1237
1238 // how many steps can be cancelled
1239 #define NUM_UNDO_STEPS                  (64 + 1)
1240
1241 // values for elements with score for certain actions
1242 #define MIN_SCORE                       0
1243 #define MAX_SCORE                       999
1244
1245 // values for elements with count for collecting
1246 #define MIN_COLLECT_COUNT               0
1247 #define MAX_COLLECT_COUNT               999
1248
1249 // values for random placement
1250 #define RANDOM_USE_PERCENTAGE           0
1251 #define RANDOM_USE_QUANTITY             1
1252
1253 // values for level set save mode
1254 #define LEVELSET_SAVE_MODE_UPDATE       0
1255 #define LEVELSET_SAVE_MODE_CREATE       1
1256
1257 // default value for element tile size in drawing area
1258 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1259 #define DEFAULT_EDITOR_TILESIZE_MM      TILESIZE
1260
1261
1262 // ----------------------------------------------------------------------------
1263 // some internally used data structure definitions
1264 // ----------------------------------------------------------------------------
1265
1266 static struct
1267 {
1268   int graphic;
1269   int gadget_id;
1270   struct XYTileSize *pos;
1271   int gadget_type;
1272   char *infotext;
1273   char shortcut;
1274 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1275 {
1276   // note: some additional characters are already reserved for "cheat mode"
1277   // shortcuts (":XYZ" style) -- for details, see "events.c"
1278
1279   // ---------- toolbox control buttons ---------------------------------------
1280
1281   {
1282     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1283     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1284     "Draw single items",                        's'
1285   },
1286   {
1287     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1288     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1289     "Draw connected items",                     'd'
1290   },
1291   {
1292     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1293     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1294     "Draw lines",                               'l'
1295   },
1296   {
1297     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1298     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1299     "Draw arcs",                                'a'
1300   },
1301   {
1302     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1303     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1304     "Draw outline rectangles",                  'r'
1305   },
1306   {
1307     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1308     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1309     "Draw filled rectangles",                   'R'
1310   },
1311   {
1312     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1313     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1314     "Wrap (rotate) level up",                   0
1315   },
1316   {
1317     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1318     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1319     "Enter text elements",                      't'
1320   },
1321   {
1322     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1323     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1324     "Flood fill",                               'f'
1325   },
1326   {
1327     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1328     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1329     "Wrap (rotate) level left",                 0
1330   },
1331   {
1332     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1333     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1334     "Zoom level tile size",                     '+'
1335   },
1336   {
1337     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1338     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1339     "Wrap (rotate) level right",                0
1340   },
1341   {
1342     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1343     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1344     "Random element placement",                 0
1345   },
1346   {
1347     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1348     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1349     "Grab brush",                               'b'
1350   },
1351   {
1352     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1353     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1354     "Wrap (rotate) level down",                 0
1355   },
1356   {
1357     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1358     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1359     "Pick drawing element",                     ','
1360   },
1361
1362   // ---------- level control buttons -----------------------------------------
1363
1364   {
1365     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1366     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1367     "Undo/redo last operation",                 'u'
1368   },
1369   {
1370     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_CONF,
1371     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1372     "Level and editor settings",                'I'
1373   },
1374   {
1375     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1376     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1377     "Save level",                               'S'
1378   },
1379   {
1380     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1381     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1382     "Clear level",                              'C'
1383   },
1384   {
1385     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1386     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1387     "Test level",                               'T'
1388   },
1389   {
1390     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1391     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1392     "Exit level editor",                        'E'
1393   },
1394
1395   // ---------- CE and GE control buttons -------------------------------------
1396
1397   {
1398     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1399     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1400     "Copy settings from other element",         0
1401   },
1402   {
1403     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1404     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1405     "Copy settings to other element",           0
1406   },
1407   {
1408     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1409     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1410     "Exchange element with other element",      0
1411   },
1412   {
1413     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1414     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1415     "Copy settings from this element",          0
1416   },
1417   {
1418     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1419     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1420     "Paste settings to this element",           0
1421   },
1422
1423   // ---------- palette control buttons ---------------------------------------
1424
1425   {
1426     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1427     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1428     "Properties of drawing element",            'p'
1429   },
1430   {
1431     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1432     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1433     "Properties of drawing element 1",          '1'
1434   },
1435   {
1436     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1437     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1438     "Properties of drawing element 2",          '2'
1439   },
1440   {
1441     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1442     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1443     "Properties of drawing element 3",          '3'
1444   },
1445   {
1446     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1447     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1448     "Show list of elements",                    'e'
1449   }
1450 };
1451
1452 static int random_placement_value = 10;
1453 static int random_placement_method = RANDOM_USE_QUANTITY;
1454 static int random_placement_background_element = EL_SAND;
1455 static boolean random_placement_background_restricted = FALSE;
1456 static boolean stick_element_properties_window = FALSE;
1457 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1458 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1459 static struct ElementChangeInfo custom_element_change;
1460 static struct ElementGroupInfo group_element_info;
1461 static struct ElementInfo custom_element;
1462
1463 static char levelset_name[MAX_LEVEL_NAME_LEN + 1];
1464 static char levelset_author[MAX_LEVEL_AUTHOR_LEN + 1];
1465 static int levelset_num_levels = 100;
1466 static boolean levelset_use_levelset_artwork = FALSE;
1467 static boolean levelset_copy_level_template = FALSE;
1468 static int levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
1469
1470 static struct
1471 {
1472   int gadget_type_id;
1473   int x, y;
1474   int min_value, max_value;
1475   int gadget_id_down, gadget_id_up;
1476   int gadget_id_text;
1477   int gadget_id_align;
1478   int *value;
1479   char *text_above, *text_left, *text_right;
1480 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1481 {
1482   // ---------- current level number ------------------------------------------
1483
1484   {
1485     ED_COUNTER_ID_SELECT_LEVEL,
1486     -1, -1,     // these values are not constant, but can change at runtime
1487     1,                                  100,
1488     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1489     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1490     &level_nr,
1491     NULL,                               NULL, NULL
1492   },
1493
1494   // ---------- level and editor settings -------------------------------------
1495
1496   {
1497     ED_COUNTER_ID_LEVEL_XSIZE,
1498     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1499     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1500     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1501     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1502     &level.fieldx,
1503     "Playfield size:",                  NULL, "Width",
1504   },
1505   {
1506     ED_COUNTER_ID_LEVEL_YSIZE,
1507     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1508     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1509     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1510     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1511     &level.fieldy,
1512     NULL,                               " ", "Height",
1513   },
1514   {
1515     ED_COUNTER_ID_LEVEL_GEMSLIMIT,
1516     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1517     0,                                  999,
1518     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1519     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1520     &level.gems_needed,
1521     NULL,                               "Number of gems to collect:", NULL
1522   },
1523   {
1524     ED_COUNTER_ID_LEVEL_TIMELIMIT,
1525     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
1526     0,                                  9999,
1527     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1528     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1529     &level.time,
1530     "Time or step limit to solve level:", NULL, NULL
1531   },
1532   {
1533     ED_COUNTER_ID_LEVEL_TIMESCORE,
1534     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
1535     0,                                  999,
1536     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1537     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1538     &level.score[SC_TIME_BONUS],
1539     "Score for time or steps left:",    NULL, NULL
1540   },
1541   {
1542     ED_COUNTER_ID_LEVEL_RANDOM_SEED,
1543     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(13),
1544     0,                                  9999,
1545     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1546     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1547     &level.random_seed,
1548     NULL,                               "Random seed:", "(0 => random)"
1549   },
1550   {
1551     ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
1552     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1553     1,                                  MAX_LEVELS,
1554     GADGET_ID_LEVELSET_NUM_LEVELS_DOWN, GADGET_ID_LEVELSET_NUM_LEVELS_UP,
1555     GADGET_ID_LEVELSET_NUM_LEVELS_TEXT, GADGET_ID_NONE,
1556     &levelset_num_levels,
1557     "Number of levels:",                NULL, NULL,
1558   },
1559   {
1560     ED_COUNTER_ID_LEVEL_RANDOM,
1561     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1562     1,                                  100,
1563     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1564     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1565     &random_placement_value,
1566     "Random element placement:",        NULL, "in"
1567   },
1568   {
1569     ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
1570     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1571     50,                                 500,
1572     GADGET_ID_BD_CYCLE_DELAY_MS_DOWN,   GADGET_ID_BD_CYCLE_DELAY_MS_UP,
1573     GADGET_ID_BD_CYCLE_DELAY_MS_TEXT,   GADGET_ID_NONE,
1574     &level.bd_cycle_delay_ms,
1575     NULL,                               NULL, "Game cycle delay (ms)"
1576   },
1577   {
1578     ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
1579     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1580     0,                                  32,
1581     GADGET_ID_BD_CYCLE_DELAY_C64_DOWN,  GADGET_ID_BD_CYCLE_DELAY_C64_UP,
1582     GADGET_ID_BD_CYCLE_DELAY_C64_TEXT,  GADGET_ID_NONE,
1583     &level.bd_cycle_delay_c64,
1584     NULL,                               NULL, "Game cycle delay (C64-style)"
1585   },
1586   {
1587     ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
1588     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1589     1,                                  40,
1590     GADGET_ID_BD_HATCHING_DELAY_CYCLES_DOWN,    GADGET_ID_BD_HATCHING_DELAY_CYCLES_UP,
1591     GADGET_ID_BD_HATCHING_DELAY_CYCLES_TEXT,    GADGET_ID_NONE,
1592     &level.bd_hatching_delay_cycles,
1593     NULL,                               NULL, "Hatching delay (cycles)"
1594   },
1595   {
1596     ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
1597     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1598     1,                                  40,
1599     GADGET_ID_BD_HATCHING_DELAY_SECONDS_DOWN,   GADGET_ID_BD_HATCHING_DELAY_SECONDS_UP,
1600     GADGET_ID_BD_HATCHING_DELAY_SECONDS_TEXT,   GADGET_ID_NONE,
1601     &level.bd_hatching_delay_seconds,
1602     NULL,                               NULL, "Hatching delay (seconds)"
1603   },
1604
1605   // ---------- element settings: configure (various elements) ----------------
1606
1607   {
1608     ED_COUNTER_ID_BD_PUSHING_PROB,
1609     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1610     0,                                  100,
1611     GADGET_ID_BD_PUSHING_PROB_DOWN,     GADGET_ID_BD_PUSHING_PROB_UP,
1612     GADGET_ID_BD_PUSHING_PROB_TEXT,     GADGET_ID_NONE,
1613     &level.bd_pushing_prob,
1614     NULL,                               NULL, "Push probability"
1615   },
1616   {
1617     ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
1618     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1619     0,                                  100,
1620     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_DOWN,  GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_UP,
1621     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_TEXT,  GADGET_ID_NONE,
1622     &level.bd_pushing_prob_with_sweet,
1623     NULL,                               NULL, "Push probability with sweet"
1624   },
1625   {
1626     ED_COUNTER_ID_ELEMENT_VALUE1,
1627     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1628     MIN_SCORE,                          MAX_SCORE,
1629     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1630     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1631     NULL,                               // will be set when used
1632     NULL,                               NULL, NULL
1633   },
1634   {
1635     ED_COUNTER_ID_ELEMENT_VALUE2,
1636     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1637     MIN_SCORE,                          MAX_SCORE,
1638     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1639     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1640     NULL,                               // will be set when used
1641     NULL,                               NULL, NULL
1642   },
1643   {
1644     ED_COUNTER_ID_ELEMENT_VALUE3,
1645     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1646     MIN_SCORE,                          MAX_SCORE,
1647     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1648     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1649     NULL,                               // will be set when used
1650     NULL,                               NULL, NULL
1651   },
1652   {
1653     ED_COUNTER_ID_ELEMENT_VALUE4,
1654     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1655     MIN_SCORE,                          MAX_SCORE,
1656     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1657     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1658     NULL,                               // will be set when used
1659     NULL,                               NULL, NULL
1660   },
1661   {
1662     ED_COUNTER_ID_YAMYAM_CONTENT,
1663     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1664     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1665     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1666     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1667     &level.num_yamyam_contents,
1668     NULL,                               NULL, "Number of content areas"
1669   },
1670   {
1671     ED_COUNTER_ID_BALL_CONTENT,
1672     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1673     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1674     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1675     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1676     &level.num_ball_contents,
1677     NULL,                               NULL, "Number of content areas"
1678   },
1679   {
1680     ED_COUNTER_ID_ANDROID_CONTENT,
1681     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1682     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1683     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1684     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1685     &level.num_android_clone_elements,
1686     NULL,                               NULL, "Number of clonable elements"
1687   },
1688   {
1689     ED_COUNTER_ID_ENVELOPE_XSIZE,
1690     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1691     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1692     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1693     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1694     NULL,                               // will be set when used
1695     NULL,                               NULL, "Width",
1696   },
1697   {
1698     ED_COUNTER_ID_ENVELOPE_YSIZE,
1699     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1700     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1701     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1702     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1703     NULL,                               // will be set when used
1704     NULL,                               " ", "Height",
1705   },
1706   {
1707     ED_COUNTER_ID_INVENTORY_SIZE,
1708     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1709     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1710     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1711     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1712     &level.initial_inventory_size[0],
1713     NULL,                               NULL, "Number of inventory elements"
1714   },
1715   {
1716     ED_COUNTER_ID_MM_BALL_CONTENT,
1717     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1718     MIN_ELEMENTS_IN_GROUP,              MAX_MM_BALL_CONTENTS,
1719     GADGET_ID_MM_BALL_CONTENT_DOWN,     GADGET_ID_MM_BALL_CONTENT_UP,
1720     GADGET_ID_MM_BALL_CONTENT_TEXT,     GADGET_ID_NONE,
1721     &level.num_mm_ball_contents,
1722     NULL,                               NULL, "Number of content elements"
1723   },
1724
1725   // ---------- element settings: configure 1 (custom elements) ---------------
1726
1727   {
1728     ED_COUNTER_ID_CUSTOM_SCORE,
1729     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1730     MIN_SCORE,                          MAX_SCORE,
1731     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1732     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1733     &custom_element.collect_score_initial,
1734     NULL,                               "CE score", " "
1735   },
1736   {
1737     ED_COUNTER_ID_CUSTOM_GEMCOUNT,
1738     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1739     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1740     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1741     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1742     &custom_element.collect_count_initial,
1743     NULL,                               "CE count", NULL
1744   },
1745   {
1746     ED_COUNTER_ID_CUSTOM_VALUE_FIX,
1747     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1748     0,                                  9999,
1749     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1750     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1751     &custom_element.ce_value_fixed_initial,
1752     NULL,                               "CE value", NULL
1753   },
1754   {
1755     ED_COUNTER_ID_CUSTOM_VALUE_RND,
1756     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1757     0,                                  9999,
1758     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1759     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1760     &custom_element.ce_value_random_initial,
1761     NULL,                               "+random", NULL
1762   },
1763   {
1764     ED_COUNTER_ID_PUSH_DELAY_FIX,
1765     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1766     0,                                  999,
1767     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1768     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1769     &custom_element.push_delay_fixed,
1770     NULL,                               "Push delay", NULL
1771   },
1772   {
1773     ED_COUNTER_ID_PUSH_DELAY_RND,
1774     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1775     0,                                  999,
1776     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1777     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1778     &custom_element.push_delay_random,
1779     NULL,                               "+random", NULL
1780   },
1781   {
1782     ED_COUNTER_ID_DROP_DELAY_FIX,
1783     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1784     0,                                  999,
1785     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1786     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1787     &custom_element.drop_delay_fixed,
1788     NULL,                               "Drop delay", NULL
1789   },
1790   {
1791     ED_COUNTER_ID_DROP_DELAY_RND,
1792     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1793     0,                                  999,
1794     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1795     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1796     &custom_element.drop_delay_random,
1797     NULL,                               "+random", NULL
1798   },
1799
1800   // ---------- element settings: configure 2 (custom elements) ---------------
1801
1802   {
1803     ED_COUNTER_ID_MOVE_DELAY_FIX,
1804     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1805     0,                                  999,
1806     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1807     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1808     &custom_element.move_delay_fixed,
1809     NULL,                               "Move delay", NULL
1810   },
1811   {
1812     ED_COUNTER_ID_MOVE_DELAY_RND,
1813     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1814     0,                                  999,
1815     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1816     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1817     &custom_element.move_delay_random,
1818     NULL,                               "+random", NULL
1819   },
1820   {
1821     ED_COUNTER_ID_STEP_DELAY_FIX,
1822     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1823     0,                                  999,
1824     GADGET_ID_STEP_DELAY_FIX_DOWN,      GADGET_ID_STEP_DELAY_FIX_UP,
1825     GADGET_ID_STEP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1826     &custom_element.step_delay_fixed,
1827     NULL,                               "Step delay", NULL
1828   },
1829   {
1830     ED_COUNTER_ID_STEP_DELAY_RND,
1831     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1832     0,                                  999,
1833     GADGET_ID_STEP_DELAY_RND_DOWN,      GADGET_ID_STEP_DELAY_RND_UP,
1834     GADGET_ID_STEP_DELAY_RND_TEXT,      GADGET_ID_STEP_DELAY_FIX_UP,
1835     &custom_element.step_delay_random,
1836     NULL,                               "+random", NULL
1837   },
1838   {
1839     ED_COUNTER_ID_EXPLOSION_DELAY,
1840     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1841     0,                                  999,
1842     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1843     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1844     &custom_element.explosion_delay,
1845     NULL,                               "Explosion delay", NULL
1846   },
1847   {
1848     ED_COUNTER_ID_IGNITION_DELAY,
1849     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
1850     0,                                  999,
1851     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1852     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1853     &custom_element.ignition_delay,
1854     NULL,                               "Ignition delay", "(by fire)"
1855   },
1856
1857   // ---------- element settings: configure (group elements) ------------------
1858
1859   {
1860     ED_COUNTER_ID_GROUP_CONTENT,
1861     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1862     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1863     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1864     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1865     &group_element_info.num_elements,
1866     NULL,                               NULL, "Number of elements in group"
1867   },
1868
1869   // ---------- element settings: advanced (custom elements) ------------------
1870
1871   {
1872     ED_COUNTER_ID_CHANGE_DELAY_FIX,
1873     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1874     0,                                  999,
1875     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1876     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1877     &custom_element_change.delay_fixed,
1878     NULL,                               "CE delay", NULL,
1879   },
1880   {
1881     ED_COUNTER_ID_CHANGE_DELAY_RND,
1882     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1883     0,                                  999,
1884     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1885     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1886     &custom_element_change.delay_random,
1887     NULL,                               "+random", NULL
1888   },
1889   {
1890     ED_COUNTER_ID_CHANGE_CONT_RND,
1891     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1892     0,                                  100,
1893     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1894     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1895     &custom_element_change.random_percentage,
1896     NULL,                               "Use random replace:", "%"
1897   },
1898 };
1899
1900 static struct
1901 {
1902   int gadget_type_id;
1903   int x, y;
1904   int gadget_id;
1905   int size;
1906   char *value;
1907   char *text_above, *infotext;
1908 } textinput_info[ED_NUM_TEXTINPUT] =
1909 {
1910   {
1911     ED_TEXTINPUT_ID_LEVEL_NAME,
1912     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1913     GADGET_ID_LEVEL_NAME,
1914     MAX_LEVEL_NAME_LEN,
1915     level.name,
1916     "Title:", "Title for this level"
1917   },
1918   {
1919     ED_TEXTINPUT_ID_LEVEL_AUTHOR,
1920     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1921     GADGET_ID_LEVEL_AUTHOR,
1922     MAX_LEVEL_AUTHOR_LEN,
1923     level.author,
1924     "Author:", "Author for this level"
1925   },
1926   {
1927     ED_TEXTINPUT_ID_LEVELSET_NAME,
1928     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1929     GADGET_ID_LEVELSET_NAME,
1930     MAX_LEVEL_NAME_LEN,
1931     levelset_name,
1932     "Title:", "Title for this or new level set"
1933   },
1934   {
1935     ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
1936     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1937     GADGET_ID_LEVELSET_AUTHOR,
1938     MAX_LEVEL_AUTHOR_LEN,
1939     levelset_author,
1940     "Author:", "Author for this or new level set"
1941   },
1942   {
1943     ED_TEXTINPUT_ID_ELEMENT_NAME,
1944     -1, -1,     // these values are not constant, but can change at runtime
1945     GADGET_ID_ELEMENT_NAME,
1946     MAX_ELEMENT_NAME_LEN - 2,           // currently 2 chars less editable
1947     custom_element.description,
1948     NULL, "Element name"
1949   }
1950 };
1951
1952 static struct
1953 {
1954   int gadget_type_id;
1955   int x, y;
1956   int gadget_id;
1957   int xsize, ysize;
1958   char *value;
1959   char *text_above, *text_above_cropped, *infotext;
1960 } textarea_info[ED_NUM_TEXTAREAS] =
1961 {
1962   {
1963     ED_TEXTAREA_ID_ENVELOPE_INFO,
1964     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1965     GADGET_ID_ENVELOPE_INFO,
1966     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1967     NULL,
1968     "Envelope Content:", "Envelope Content (cropped):", "Envelope Content"
1969   }
1970 };
1971
1972 static struct ValueTextInfo options_time_or_steps[] =
1973 {
1974   { 0,                          "seconds"                       },
1975   { 1,                          "steps"                         },
1976
1977   { -1,                         NULL                            }
1978 };
1979
1980 static struct ValueTextInfo options_time_score_base[] =
1981 {
1982   { 1,                          "per second/step"               },
1983   { 10,                         "per 10 seconds/steps"          },
1984
1985   { -1,                         NULL                            }
1986 };
1987
1988 static struct ValueTextInfo options_game_engine_type[] =
1989 {
1990   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
1991   { GAME_ENGINE_TYPE_BD,        "Boulder Dash"                  },
1992   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
1993   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
1994   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
1995
1996   { -1,                         NULL                            }
1997 };
1998
1999 static struct ValueTextInfo options_levelset_save_mode[] =
2000 {
2001   { LEVELSET_SAVE_MODE_UPDATE,  "Update this level set"         },
2002   { LEVELSET_SAVE_MODE_CREATE,  "Create new level set"          },
2003
2004   { -1,                         NULL                            }
2005 };
2006
2007 static struct ValueTextInfo options_wind_direction[] =
2008 {
2009   { MV_START_NONE,              "none"                          },
2010   { MV_START_LEFT,              "left"                          },
2011   { MV_START_RIGHT,             "right"                         },
2012   { MV_START_UP,                "up"                            },
2013   { MV_START_DOWN,              "down"                          },
2014
2015   { -1,                         NULL                            }
2016 };
2017
2018 static struct ValueTextInfo options_player_speed[] =
2019 {
2020   { 0,                          "frozen"                        },
2021   { 1,                          "very slow"                     },
2022   { 2,                          "slow"                          },
2023   { 4,                          "normal"                        },
2024   { 8,                          "fast"                          },
2025   { 16,                         "very fast"                     },
2026   { 32,                         "ultrafast"                     },
2027
2028   { -1,                         NULL                            }
2029 };
2030
2031 static struct ValueTextInfo options_access_type[] =
2032 {
2033   { EP_WALKABLE,                "walkable"                      },
2034   { EP_PASSABLE,                "passable"                      },
2035
2036   { -1,                         NULL                            }
2037 };
2038
2039 static struct ValueTextInfo options_access_layer[] =
2040 {
2041   { EP_ACCESSIBLE_OVER,         "over"                          },
2042   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
2043   { EP_ACCESSIBLE_UNDER,        "under"                         },
2044
2045   { -1,                         NULL                            }
2046 };
2047
2048 static struct ValueTextInfo options_access_protected[] =
2049 {
2050   { 0,                          "unprotected"                   },
2051   { 1,                          "protected"                     },
2052
2053   { -1,                         NULL                            }
2054 };
2055
2056 static struct ValueTextInfo options_access_direction[] =
2057 {
2058   { MV_NO_DIRECTION,            "no direction"                  },
2059   { MV_LEFT,                    "left"                          },
2060   { MV_RIGHT,                   "right"                         },
2061   { MV_UP,                      "up"                            },
2062   { MV_DOWN,                    "down"                          },
2063   { MV_LEFT  | MV_UP,           "left + up"                     },
2064   { MV_LEFT  | MV_DOWN,         "left + down"                   },
2065   { MV_RIGHT | MV_UP,           "right + up"                    },
2066   { MV_RIGHT | MV_DOWN,         "right + down"                  },
2067   { MV_HORIZONTAL,              "horizontal"                    },
2068   { MV_VERTICAL,                "vertical"                      },
2069   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
2070   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
2071   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
2072   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
2073   { MV_ALL_DIRECTIONS,          "all directions"                },
2074
2075   { -1,                         NULL                            }
2076 };
2077
2078 static struct ValueTextInfo options_walk_to_action[] =
2079 {
2080   { EP_DIGGABLE,                "diggable"                      },
2081   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
2082   { EP_DROPPABLE,               "collectible & droppable"       },
2083   { EP_THROWABLE,               "collectible & throwable"       },
2084   { EP_PUSHABLE,                "pushable"                      },
2085
2086   { -1,                         NULL                            }
2087 };
2088
2089 static struct ValueTextInfo options_move_pattern[] =
2090 {
2091   { MV_LEFT,                    "left"                          },
2092   { MV_RIGHT,                   "right"                         },
2093   { MV_UP,                      "up"                            },
2094   { MV_DOWN,                    "down"                          },
2095   { MV_HORIZONTAL,              "horizontal"                    },
2096   { MV_VERTICAL,                "vertical"                      },
2097   { MV_ALL_DIRECTIONS,          "all directions"                },
2098   { MV_WIND_DIRECTION,          "wind direction"                },
2099   { MV_TOWARDS_PLAYER,          "towards player"                },
2100   { MV_AWAY_FROM_PLAYER,        "away from player"              },
2101   { MV_ALONG_LEFT_SIDE,         "along left side"               },
2102   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
2103   { MV_TURNING_LEFT,            "turning left"                  },
2104   { MV_TURNING_RIGHT,           "turning right"                 },
2105   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
2106   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
2107   { MV_TURNING_RANDOM,          "turning random"                },
2108   { MV_MAZE_RUNNER,             "maze runner style"             },
2109   { MV_MAZE_HUNTER,             "maze hunter style"             },
2110   { MV_WHEN_PUSHED,             "when pushed"                   },
2111   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
2112
2113   { -1,                         NULL                            }
2114 };
2115
2116 static struct ValueTextInfo options_move_direction[] =
2117 {
2118   { MV_START_AUTOMATIC,         "automatic"                     },
2119   { MV_START_LEFT,              "left"                          },
2120   { MV_START_RIGHT,             "right"                         },
2121   { MV_START_UP,                "up"                            },
2122   { MV_START_DOWN,              "down"                          },
2123   { MV_START_RANDOM,            "random"                        },
2124   { MV_START_PREVIOUS,          "previous"                      },
2125
2126   { -1,                         NULL                            }
2127 };
2128
2129 static struct ValueTextInfo options_move_stepsize[] =
2130 {
2131   { 0,                          "not moving"                    },
2132   { 1,                          "very slow"                     },
2133   { 2,                          "slow"                          },
2134   { 4,                          "normal"                        },
2135   { 8,                          "fast"                          },
2136   { 16,                         "very fast"                     },
2137   { 32,                         "even faster"                   },
2138
2139   { -1,                         NULL                            }
2140 };
2141
2142 static struct ValueTextInfo options_move_leave_type[] =
2143 {
2144   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
2145   { LEAVE_TYPE_LIMITED,         "change it to"                  },
2146
2147   { -1,                         NULL                            }
2148 };
2149
2150 static struct ValueTextInfo options_smash_targets[] =
2151 {
2152   { EP_CAN_SMASH_PLAYER,        "player"                        },
2153 #if 0
2154   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
2155 #endif
2156   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
2157
2158   { -1,                         NULL                            }
2159 };
2160
2161 static struct ValueTextInfo options_slippery_type[] =
2162 {
2163   { SLIPPERY_ANY_RANDOM,        "random"                        },
2164   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
2165   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
2166   { SLIPPERY_ONLY_LEFT,         "only left"                     },
2167   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
2168
2169   { -1,                         NULL                            }
2170 };
2171
2172 static struct ValueTextInfo options_deadliness[] =
2173 {
2174   { EP_DONT_RUN_INTO,           "running into"                  },
2175   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
2176   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
2177   { EP_DONT_TOUCH,              "touching"                      },
2178
2179   { -1,                         NULL                            }
2180 };
2181
2182 static struct ValueTextInfo options_explosion_type[] =
2183 {
2184   { EXPLODES_3X3,               "3x3"                           },
2185   { EXPLODES_CROSS,             "3+3"                           },
2186   { EXPLODES_1X1,               "1x1"                           },
2187
2188   { -1,                         NULL                            }
2189 };
2190
2191 static struct ValueTextInfo options_time_units[] =
2192 {
2193   { 1,                          "frames"                        },
2194   { FRAMES_PER_SECOND,          "seconds"                       },
2195
2196   { -1,                         NULL                            }
2197 };
2198
2199 static struct ValueTextInfo options_change_direct_action[] =
2200 {
2201   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
2202   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
2203   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
2204   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
2205   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
2206   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
2207   { CE_LEFT_BY_PLAYER,          "left by player"                },
2208   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
2209   { CE_SWITCHED,                "switched"                      },
2210   { CE_HITTING_SOMETHING,       "hitting something"             },
2211   { CE_HIT_BY_SOMETHING,        "hit by something"              },
2212 #if 0
2213   { CE_BLOCKED,                 "blocked"                       },
2214 #endif
2215   { CE_IMPACT,                  "impact (on something)"         },
2216   { CE_SMASHED,                 "smashed (from above)"          },
2217 #if 0
2218   { CE_VALUE_CHANGES,           "CE value changes"              },
2219   { CE_SCORE_CHANGES,           "CE score changes"              },
2220 #endif
2221   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
2222   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
2223   { CE_UNDEFINED,               " "                             },
2224   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2225   { CE_CLICKED_BY_MOUSE,        "clicked by mouse"              },
2226   { CE_PRESSED_BY_MOUSE,        "pressed by mouse"              },
2227   { CE_UNDEFINED,               " "                             },
2228   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2229   { CE_NEXT_TO_PLAYER,          "next to player"                },
2230
2231   { -1,                         NULL                            }
2232 };
2233
2234 static struct ValueTextInfo options_change_other_action[] =
2235 {
2236   { CE_PLAYER_TOUCHES_X,        "player touches"                },
2237   { CE_PLAYER_PRESSES_X,        "player presses"                },
2238   { CE_PLAYER_SWITCHES_X,       "player switches"               },
2239   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
2240   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
2241   { CE_PLAYER_ENTERS_X,         "player enters"                 },
2242   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
2243   { CE_PLAYER_DIGS_X,           "player digs"                   },
2244   { CE_PLAYER_COLLECTS_X,       "player collects"               },
2245   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
2246   { CE_TOUCHING_X,              "touching"                      },
2247   { CE_HITTING_X,               "hitting"                       },
2248   { CE_DIGGING_X,               "digging"                       },
2249   { CE_HIT_BY_X,                "hit by"                        },
2250   { CE_SWITCH_OF_X,             "switch of"                     },
2251   { CE_CHANGE_OF_X,             "change by page of"             },
2252   { CE_EXPLOSION_OF_X,          "explosion of"                  },
2253   { CE_MOVE_OF_X,               "move of"                       },
2254   { CE_CREATION_OF_X,           "creation of"                   },
2255   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
2256   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
2257   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
2258   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
2259   { CE_UNDEFINED,               " "                             },
2260   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2261   { CE_MOUSE_CLICKED_ON_X,      "mouse clicked on"              },
2262   { CE_MOUSE_PRESSED_ON_X,      "mouse pressed on"              },
2263   { CE_UNDEFINED,               " "                             },
2264   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2265   { CE_PLAYER_NEXT_TO_X,        "player next to"                },
2266   { CE_NEXT_TO_X,               "next to"                       },
2267
2268   { -1,                         NULL                            }
2269 };
2270
2271 static struct ValueTextInfo options_change_trigger_side[] =
2272 {
2273   { CH_SIDE_LEFT,               "left"                          },
2274   { CH_SIDE_RIGHT,              "right"                         },
2275   { CH_SIDE_TOP,                "top"                           },
2276   { CH_SIDE_BOTTOM,             "bottom"                        },
2277   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
2278   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
2279   { CH_SIDE_ANY,                "any"                           },
2280
2281   { -1,                         NULL                            }
2282 };
2283
2284 static struct ValueTextInfo options_change_trigger_player[] =
2285 {
2286   { CH_PLAYER_1,                "1"                             },
2287   { CH_PLAYER_2,                "2"                             },
2288   { CH_PLAYER_3,                "3"                             },
2289   { CH_PLAYER_4,                "4"                             },
2290   { CH_PLAYER_ANY,              "any"                           },
2291
2292   { -1,                         NULL                            }
2293 };
2294
2295 static struct ValueTextInfo options_change_trigger_page[] =
2296 {
2297   { (1u << 0),                  "1"                             },
2298   { (1u << 1),                  "2"                             },
2299   { (1u << 2),                  "3"                             },
2300   { (1u << 3),                  "4"                             },
2301   { (1u << 4),                  "5"                             },
2302   { (1u << 5),                  "6"                             },
2303   { (1u << 6),                  "7"                             },
2304   { (1u << 7),                  "8"                             },
2305   { (1u << 8),                  "9"                             },
2306   { (1u << 9),                  "10"                            },
2307   { (1u << 10),                 "11"                            },
2308   { (1u << 11),                 "12"                            },
2309   { (1u << 12),                 "13"                            },
2310   { (1u << 13),                 "14"                            },
2311   { (1u << 14),                 "15"                            },
2312   { (1u << 15),                 "16"                            },
2313   { (1u << 16),                 "17"                            },
2314   { (1u << 17),                 "18"                            },
2315   { (1u << 18),                 "19"                            },
2316   { (1u << 19),                 "20"                            },
2317   { (1u << 20),                 "21"                            },
2318   { (1u << 21),                 "22"                            },
2319   { (1u << 22),                 "23"                            },
2320   { (1u << 23),                 "24"                            },
2321   { (1u << 24),                 "25"                            },
2322   { (1u << 25),                 "26"                            },
2323   { (1u << 26),                 "27"                            },
2324   { (1u << 27),                 "28"                            },
2325   { (1u << 28),                 "29"                            },
2326   { (1u << 29),                 "30"                            },
2327   { (1u << 30),                 "31"                            },
2328   { (1u << 31),                 "32"                            },
2329   { CH_PAGE_ANY,                "any"                           },
2330
2331   { -1,                         NULL                            }
2332 };
2333
2334 static struct ValueTextInfo options_change_replace_when[] =
2335 {
2336   { CP_WHEN_EMPTY,              "empty"                         },
2337   { CP_WHEN_WALKABLE,           "walkable"                      },
2338   { CP_WHEN_DIGGABLE,           "diggable"                      },
2339   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
2340   { CP_WHEN_REMOVABLE,          "removable"                     },
2341   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
2342
2343   { -1,                         NULL                            }
2344 };
2345
2346 static struct ValueTextInfo options_action_type[] =
2347 {
2348   { CA_NO_ACTION,               "no action"                     },
2349   { CA_UNDEFINED,               " "                             },
2350   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
2351   { CA_RESTART_LEVEL,           "restart level"                 },
2352   { CA_SHOW_ENVELOPE,           "show envelope"                 },
2353   { CA_SET_LEVEL_TIME,          "set time"                      },
2354   { CA_SET_LEVEL_SCORE,         "set score"                     },
2355   { CA_SET_LEVEL_GEMS,          "set gems"                      },
2356   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
2357   { CA_SET_LEVEL_RANDOM_SEED,   "set random seed"               },
2358   { CA_UNDEFINED,               " "                             },
2359   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
2360   { CA_MOVE_PLAYER,             "move player"                   },
2361   { CA_MOVE_PLAYER_NEW,         "move player new"               },
2362   { CA_EXIT_PLAYER,             "exit player"                   },
2363   { CA_KILL_PLAYER,             "kill player"                   },
2364   { CA_SET_PLAYER_KEYS,         "set keys"                      },
2365   { CA_SET_PLAYER_SPEED,        "set speed"                     },
2366   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
2367   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
2368   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
2369   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
2370   { CA_UNDEFINED,               " "                             },
2371   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
2372   { CA_SET_CE_VALUE,            "set CE value"                  },
2373   { CA_SET_CE_SCORE,            "set CE score"                  },
2374   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
2375   { CA_UNDEFINED,               " "                             },
2376   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
2377   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
2378
2379   { -1,                         NULL                            }
2380 };
2381
2382 static struct ValueTextInfo options_action_mode_none[] =
2383 {
2384   { CA_MODE_UNDEFINED,          " "                             },
2385
2386   { -1,                         NULL                            }
2387 };
2388
2389 static struct ValueTextInfo options_action_mode_assign[] =
2390 {
2391   { CA_MODE_SET,                "="                             },
2392
2393   { -1,                         NULL                            }
2394 };
2395
2396 static struct ValueTextInfo options_action_mode_add_remove[] =
2397 {
2398   { CA_MODE_ADD,                "+"                             },
2399   { CA_MODE_SUBTRACT,           "-"                             },
2400
2401   { -1,                         NULL                            }
2402 };
2403
2404 static struct ValueTextInfo options_action_mode_calculate[] =
2405 {
2406   { CA_MODE_SET,                "="                             },
2407   { CA_MODE_ADD,                "+"                             },
2408   { CA_MODE_SUBTRACT,           "-"                             },
2409   { CA_MODE_MULTIPLY,           "*"                             },
2410   { CA_MODE_DIVIDE,             "/"                             },
2411   { CA_MODE_MODULO,             "%"                             },
2412
2413   { -1,                         NULL                            }
2414 };
2415
2416 static struct ValueTextInfo options_action_arg_none[] =
2417 {
2418   { CA_ARG_UNDEFINED,           "         "                     },
2419
2420   { -1,                         NULL                            }
2421 };
2422
2423 static struct ValueTextInfo options_action_arg_player[] =
2424 {
2425   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2426   { CA_ARG_PLAYER_1,            "1"                             },
2427   { CA_ARG_PLAYER_2,            "2"                             },
2428   { CA_ARG_PLAYER_3,            "3"                             },
2429   { CA_ARG_PLAYER_4,            "4"                             },
2430   { CA_ARG_PLAYER_ANY,          "any"                           },
2431   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2432   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2433
2434   { -1,                         NULL                            }
2435 };
2436
2437 static struct ValueTextInfo options_action_arg_number[] =
2438 {
2439   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2440   { CA_ARG_0,                   "0"                             },
2441   { CA_ARG_1,                   "1"                             },
2442   { CA_ARG_2,                   "2"                             },
2443   { CA_ARG_3,                   "3"                             },
2444   { CA_ARG_4,                   "4"                             },
2445   { CA_ARG_5,                   "5"                             },
2446   { CA_ARG_10,                  "10"                            },
2447   { CA_ARG_100,                 "100"                           },
2448   { CA_ARG_1000,                "1000"                          },
2449   { CA_ARG_UNDEFINED,           " "                             },
2450   { CA_ARG_NUMBER_MIN,          "min"                           },
2451   { CA_ARG_NUMBER_MAX,          "max"                           },
2452   { CA_ARG_UNDEFINED,           " "                             },
2453   { CA_ARG_NUMBER_RESET,        "reset"                         },
2454   { CA_ARG_UNDEFINED,           " "                             },
2455   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2456   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2457   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2458   { CA_ARG_UNDEFINED,           " "                             },
2459   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2460   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2461   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2462   { CA_ARG_UNDEFINED,           " "                             },
2463   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2464   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2465   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2466   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2467   { CA_ARG_UNDEFINED,           " "                             },
2468   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2469   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2470   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2471   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2472
2473   { -1,                         NULL                            }
2474 };
2475
2476 static struct ValueTextInfo options_action_arg_value[] =
2477 {
2478   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2479   { CA_ARG_0,                   "0"                             },
2480   { CA_ARG_1,                   "1"                             },
2481   { CA_ARG_2,                   "2"                             },
2482   { CA_ARG_3,                   "3"                             },
2483   { CA_ARG_4,                   "4"                             },
2484   { CA_ARG_5,                   "5"                             },
2485   { CA_ARG_10,                  "10"                            },
2486   { CA_ARG_100,                 "100"                           },
2487   { CA_ARG_1000,                "1000"                          },
2488   { CA_ARG_UNDEFINED,           " "                             },
2489   { CA_ARG_NUMBER_MIN,          "min"                           },
2490   { CA_ARG_NUMBER_MAX,          "max"                           },
2491   { CA_ARG_UNDEFINED,           " "                             },
2492   { CA_ARG_NUMBER_RESET,        "reset"                         },
2493   { CA_ARG_UNDEFINED,           " "                             },
2494   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2495   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2496   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2497   { CA_ARG_UNDEFINED,           " "                             },
2498   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2499   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2500   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2501   { CA_ARG_UNDEFINED,           " "                             },
2502   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2503   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2504   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2505   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2506   { CA_ARG_UNDEFINED,           " "                             },
2507   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2508   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2509   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2510   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2511   { CA_ARG_UNDEFINED,           " "                             },
2512   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2513   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2514   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2515   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2516
2517   { -1,                         NULL                            }
2518 };
2519
2520 static struct ValueTextInfo options_action_arg_envelope[] =
2521 {
2522   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2523   { CA_ARG_1,                   "1"                             },
2524   { CA_ARG_2,                   "2"                             },
2525   { CA_ARG_3,                   "3"                             },
2526   { CA_ARG_4,                   "4"                             },
2527   { CA_ARG_UNDEFINED,           " "                             },
2528   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2529   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2530   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2531   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2532
2533   { -1,                         NULL                            }
2534 };
2535
2536 static struct ValueTextInfo options_action_arg_key[] =
2537 {
2538   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2539   { CA_ARG_1,                   "1"                             },
2540   { CA_ARG_2,                   "2"                             },
2541   { CA_ARG_3,                   "3"                             },
2542   { CA_ARG_4,                   "4"                             },
2543   { CA_ARG_5,                   "5"                             },
2544   { CA_ARG_6,                   "6"                             },
2545   { CA_ARG_7,                   "7"                             },
2546   { CA_ARG_8,                   "8"                             },
2547   { CA_ARG_UNDEFINED,           " "                             },
2548   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2549   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2550   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2551   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2552
2553   { -1,                         NULL                            }
2554 };
2555
2556 static struct ValueTextInfo options_action_arg_speed[] =
2557 {
2558   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2559   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2560   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2561   { CA_ARG_SPEED_SLOW,          "slow"                          },
2562   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2563   { CA_ARG_SPEED_FAST,          "fast"                          },
2564   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2565   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2566   { CA_ARG_UNDEFINED,           " "                             },
2567   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2568   { CA_ARG_SPEED_FASTER,        "faster"                        },
2569   { CA_ARG_UNDEFINED,           " "                             },
2570   { CA_ARG_SPEED_RESET,         "reset"                         },
2571
2572   { -1,                         NULL                            }
2573 };
2574
2575 static struct ValueTextInfo options_action_arg_shield[] =
2576 {
2577   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2578   { CA_ARG_SHIELD_OFF,          "off"                           },
2579   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2580   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2581
2582   { -1,                         NULL                            }
2583 };
2584
2585 static struct ValueTextInfo options_action_arg_artwork[] =
2586 {
2587   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2588   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2589   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2590   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2591   { CA_ARG_UNDEFINED,           " "                             },
2592   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2593
2594   { -1,                         NULL                            }
2595 };
2596
2597 static struct ValueTextInfo options_action_arg_gravity[] =
2598 {
2599   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2600   { CA_ARG_GRAVITY_ON,          "on"                            },
2601   { CA_ARG_GRAVITY_OFF,         "off"                           },
2602   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2603
2604   { -1,                         NULL                            }
2605 };
2606
2607 static struct ValueTextInfo options_action_arg_direction[] =
2608 {
2609   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2610   { CA_ARG_DIRECTION_NONE,      "none"                          },
2611   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2612   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2613   { CA_ARG_DIRECTION_UP,        "up"                            },
2614   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2615   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2616   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2617
2618   { -1,                         NULL                            }
2619 };
2620
2621 static struct ValueTextInfo options_action_arg_scan_mode[] =
2622 {
2623   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2624   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2625   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2626
2627   { -1,                         NULL                            }
2628 };
2629
2630 static struct ValueTextInfo options_action_arg_inventory[] =
2631 {
2632   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2633   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2634   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2635   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2636   { CA_ARG_UNDEFINED,           " "                             },
2637   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2638   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2639   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2640   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2641   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2642   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2643   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2644   { CA_ARG_UNDEFINED,           " "                             },
2645   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2646
2647   { -1,                         NULL                            }
2648 };
2649
2650 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2651 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2652 {
2653   { -1,                         NULL                            }
2654 };
2655
2656 static struct ValueTextInfo options_group_choice_mode[] =
2657 {
2658   { ANIM_RANDOM,                "random"                        },
2659   { ANIM_LOOP,                  "loop"                          },
2660   { ANIM_LINEAR,                "linear"                        },
2661   { ANIM_PINGPONG,              "pingpong"                      },
2662   { ANIM_PINGPONG2,             "pingpong 2"                    },
2663   { ANIM_LEVEL_NR,              "level number"                  },
2664
2665   { -1,                         NULL                            }
2666 };
2667
2668 static struct ValueTextInfo options_bd_scheduling_type[] =
2669 {
2670   { GD_SCHEDULING_MILLISECONDS,   "Milliseconds"                },
2671   { GD_SCHEDULING_BD1,            "BD1"                         },
2672   { GD_SCHEDULING_BD2,            "BD2"                         },
2673   { GD_SCHEDULING_PLCK,           "Construction Kit"            },
2674   { GD_SCHEDULING_CRDR,           "Crazy Dream 7"               },
2675   { GD_SCHEDULING_BD1_ATARI,      "Atari BD1"                   },
2676   { GD_SCHEDULING_BD2_PLCK_ATARI, "Atari BD2 / PLCK"            },
2677
2678   { -1,                           NULL                          }
2679 };
2680
2681 static struct ValueTextInfo *action_arg_modes[] =
2682 {
2683   options_action_mode_none,
2684   options_action_mode_assign,
2685   options_action_mode_add_remove,
2686   options_action_mode_calculate,
2687 };
2688
2689 static struct
2690 {
2691   int value;
2692   int mode;
2693   struct ValueTextInfo *options;
2694 }
2695 action_arg_options[] =
2696 {
2697   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2698   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2699   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2700   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2701   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2702   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2703   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2704   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2705   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2706   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2707   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2708   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2709   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2710   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2711   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2712   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2713   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2714   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2715   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2716   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2717   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2718   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2719
2720   { -1,                         FALSE,  NULL                            }
2721 };
2722
2723 static struct
2724 {
2725   int gadget_type_id;
2726   int x, y;
2727   int gadget_id;
2728   int gadget_id_align;
2729   int size;     // char size of selectbox or '-1' (dynamically determined)
2730   struct ValueTextInfo *options;
2731   int *value;
2732   char *text_above, *text_left, *text_right, *infotext;
2733 } selectbox_info[ED_NUM_SELECTBOX] =
2734 {
2735   // ---------- level and editor settings -------------------------------------
2736
2737   {
2738     ED_SELECTBOX_ID_TIME_OR_STEPS,
2739     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2740     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2741     -1,
2742     options_time_or_steps,
2743     &level.use_step_counter,
2744     NULL, NULL, "(0 => no limit)",      "Select time or step limit"
2745   },
2746   {
2747     ED_SELECTBOX_ID_TIME_SCORE_BASE,
2748     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2749     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2750     -1,
2751     options_time_score_base,
2752     &level.time_score_base,
2753     NULL, NULL, NULL,                   "Select time score for 1 or 10 seconds/steps"
2754   },
2755   {
2756     ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
2757     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2758     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2759     -1,
2760     options_game_engine_type,
2761     &level.game_engine_type,
2762     NULL, "Game engine:", NULL,         "Select game engine"
2763   },
2764   {
2765     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
2766     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
2767     GADGET_ID_BD_SCHEDULING_TYPE,       GADGET_ID_NONE,
2768     -1,
2769     options_bd_scheduling_type,
2770     &level.bd_scheduling_type,
2771     NULL, "Scheduling type:", NULL,     "Select level timing"
2772   },
2773   {
2774     ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
2775     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2776     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2777     -1,
2778     options_levelset_save_mode,
2779     &levelset_save_mode,
2780     "Action:", NULL, NULL,              "Select action when saving level set"
2781   },
2782
2783   // ---------- element settings: configure (several elements) ----------------
2784
2785   {
2786     ED_SELECTBOX_ID_WIND_DIRECTION,
2787     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2788     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2789     -1,
2790     options_wind_direction,
2791     &level.wind_direction_initial,
2792     NULL, "Initial wind direction:", NULL,      "Select initial wind direction"
2793   },
2794   {
2795     ED_SELECTBOX_ID_PLAYER_SPEED,
2796     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2797     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2798     -1,
2799     options_player_speed,
2800     &level.initial_player_stepsize[0],
2801     NULL, "Initial player speed:", NULL,        "Select initial player speed"
2802   },
2803   {
2804     ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
2805     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2806     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2807     -1,
2808     options_group_choice_mode,
2809     &level.mm_ball_choice_mode,
2810     NULL, "Choice type:", NULL,         "Select type of content choice"
2811   },
2812
2813   // ---------- element settings: configure 1 (custom elements) ---------------
2814
2815   {
2816     ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
2817     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2818     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2819     -1,
2820     options_access_type,
2821     &custom_element.access_type,
2822     NULL, NULL, NULL,                   "Select type of access to this field"
2823   },
2824   {
2825     ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
2826     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2827     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2828     -1,
2829     options_access_layer,
2830     &custom_element.access_layer,
2831     NULL, NULL, NULL,                   "Select layer of access for this field"
2832   },
2833   {
2834     ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
2835     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2836     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2837     -1,
2838     options_access_protected,
2839     &custom_element.access_protected,
2840     NULL, NULL, NULL,                   "Select protected access for this field"
2841   },
2842   {
2843     ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
2844     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2845     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2846     -1,
2847     options_access_direction,
2848     &custom_element.access_direction,
2849     NULL, "from", NULL,                 "Select access direction for this field"
2850   },
2851   {
2852     ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
2853     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2854     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2855     -1,
2856     options_walk_to_action,
2857     &custom_element.walk_to_action,
2858     NULL, NULL, NULL,                   "Select diggable/collectible/pushable"
2859   },
2860
2861   // ---------- element settings: configure 2 (custom elements) ---------------
2862
2863   {
2864     ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
2865     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2866     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2867     -1,
2868     options_move_pattern,
2869     &custom_element.move_pattern,
2870     NULL, "Can move", NULL,             "Select element move pattern"
2871   },
2872   {
2873     ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
2874     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2875     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2876     -1,
2877     options_move_direction,
2878     &custom_element.move_direction_initial,
2879     NULL, "Starts moving", NULL,        "Select initial element move direction"
2880   },
2881   {
2882     ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
2883     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2884     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2885     -1,
2886     options_move_stepsize,
2887     &custom_element.move_stepsize,
2888     NULL, "Move/fall speed", NULL,      "Select speed of element movement"
2889   },
2890   {
2891     ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
2892     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2893     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2894     -1,
2895     options_move_leave_type,
2896     &custom_element.move_leave_type,
2897     // left text with leading spaces to place gadget next to "can dig" gadget
2898     // (needed because drawing area gadgets created after selectbox gadgets)
2899     // NULL, "can dig:    can", ":",    "leave behind or change element"
2900     NULL, "            Can", ":",       "Select leave behind or change element"
2901   },
2902   {
2903     ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
2904     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2905     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2906     -1,
2907     options_smash_targets,
2908     &custom_element.smash_targets,
2909     NULL, "Can smash", NULL,            "Select elements that can be smashed"
2910   },
2911   {
2912     ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
2913     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2914     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2915     -1,
2916     options_slippery_type,
2917     &custom_element.slippery_type,
2918     NULL, "Slippery", NULL,             "Select where other elements fall down"
2919   },
2920   {
2921     ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
2922     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2923     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2924     -1,
2925     options_deadliness,
2926     &custom_element.deadliness,
2927     NULL, "Deadly when", NULL,          "Select deadliness of element"
2928   },
2929   {
2930     ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
2931     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2932     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2933     -1,
2934     options_explosion_type,
2935     &custom_element.explosion_type,
2936     NULL, "Can explode", NULL,          "Select explosion type"
2937   },
2938
2939   // ---------- element settings: advanced (custom elements) ------------------
2940
2941   {
2942     ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
2943     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2944     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2945     -1,
2946     options_time_units,
2947     &custom_element_change.delay_frames,
2948     NULL, "Delay time given in", NULL,  "Select delay time units for change"
2949   },
2950   {
2951     ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
2952     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2953     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2954     -1,
2955     options_change_direct_action,
2956     &custom_element_change.direct_action,
2957     NULL, NULL, NULL,                   "Select type of direct action"
2958   },
2959   {
2960     ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
2961     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2962     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2963     -1,
2964     options_change_other_action,
2965     &custom_element_change.other_action,
2966     NULL, NULL, "element:",             "Select type of other element action"
2967   },
2968   {
2969     ED_SELECTBOX_ID_CHANGE_SIDE,
2970     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2971     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2972     -1,
2973     options_change_trigger_side,
2974     &custom_element_change.trigger_side,
2975     NULL, "at", "side",                 "Select element side triggering change"
2976   },
2977   {
2978     ED_SELECTBOX_ID_CHANGE_PLAYER,
2979     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2980     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2981     -1,
2982     options_change_trigger_player,
2983     &custom_element_change.trigger_player,
2984     NULL, "Player:", " ",               "Select player that causes change"
2985   },
2986   {
2987     ED_SELECTBOX_ID_CHANGE_PAGE,
2988     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2989     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2990     -1,
2991     options_change_trigger_page,
2992     &custom_element_change.trigger_page,
2993     NULL, "Page:", NULL,                "Select change page that causes change"
2994   },
2995   {
2996     ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
2997     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2998     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2999     -1,
3000     options_change_replace_when,
3001     &custom_element_change.replace_when,
3002     NULL, "Replace when", NULL,         "Select which elements can be replaced"
3003   },
3004   {
3005     ED_SELECTBOX_ID_ACTION_TYPE,
3006     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
3007     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
3008     15,
3009     options_action_type,
3010     &custom_element_change.action_type,
3011     NULL, NULL, NULL,                   "Select action on specified condition"
3012   },
3013   {
3014     ED_SELECTBOX_ID_ACTION_MODE,
3015     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3016     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
3017     -1,
3018     options_action_mode_none,
3019     &custom_element_change.action_mode,
3020     NULL, NULL, NULL,                   "Select action operator"
3021   },
3022   {
3023     ED_SELECTBOX_ID_ACTION_ARG,
3024     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3025     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
3026     -1,
3027     options_action_arg_none,
3028     &custom_element_change.action_arg,
3029     NULL, NULL, NULL,                   "Select action parameter"
3030   },
3031   {
3032     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
3033     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
3034     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
3035     3,
3036     options_change_page,
3037     &custom_element.current_change_page,
3038     NULL, NULL, NULL,                   "Select element change page"
3039   },
3040
3041   // ---------- element settings: configure (group elements) ------------------
3042
3043   {
3044     ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
3045     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3046     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
3047     -1,
3048     options_group_choice_mode,
3049     &group_element_info.choice_mode,
3050     NULL, "Choice type:", NULL,         "Select type of group element choice"
3051   },
3052 };
3053
3054 static struct
3055 {
3056   int gadget_type_id;
3057   int x, y;
3058   int gadget_id;
3059   int gadget_id_align;
3060   int size;
3061   char *text;
3062   char *text_above, *text_left, *text_right, *infotext;
3063 } textbutton_info[ED_NUM_TEXTBUTTONS] =
3064 {
3065   // ---------- level and editor settings (tabs) ------------------------------
3066
3067   {
3068     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
3069     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
3070     GADGET_ID_LEVELCONFIG_LEVEL,        GADGET_ID_NONE,
3071     8,                                  "Level",
3072     NULL, NULL, NULL,                   "Configure level settings"
3073   },
3074   {
3075     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
3076     -1,                                 -1,
3077     GADGET_ID_LEVELCONFIG_LEVELSET,     GADGET_ID_LEVELCONFIG_LEVEL,
3078     8,                                  "Levelset",
3079     NULL, NULL, NULL,                   "Update this or create new level set"
3080   },
3081   {
3082     ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
3083     -1,                                 -1,
3084     GADGET_ID_LEVELCONFIG_EDITOR,       GADGET_ID_LEVELCONFIG_LEVELSET,
3085     8,                                  "Editor",
3086     NULL, NULL, NULL,                   "Configure editor settings"
3087   },
3088   {
3089     ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
3090     -1,                                 -1,
3091     GADGET_ID_LEVELCONFIG_ENGINE,       GADGET_ID_LEVELCONFIG_EDITOR,
3092     8,                                  "Engine",
3093     NULL, NULL, NULL,                   "Configure engine settings"
3094   },
3095
3096   // ---------- element settings (tabs) ---------------------------------------
3097
3098   {
3099     ED_TEXTBUTTON_ID_PROPERTIES_INFO,
3100     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
3101     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
3102     8,                                  "Info",
3103     NULL, NULL, NULL,                   "Show information about element"
3104   },
3105   {
3106     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
3107     -1,                                 -1,
3108     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
3109     8,                                  "Config",
3110     NULL, NULL, NULL,                   "Configure element properties"
3111   },
3112   {
3113     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
3114     -1,                                 -1,
3115     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
3116     8,                                  "Config 1",
3117     NULL, NULL, NULL,                   "Configure element properties, part 1"
3118   },
3119   {
3120     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
3121     -1,                                 -1,
3122     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
3123     8,                                  "Config 2",
3124     NULL, NULL, NULL,                   "Configure element properties, part 2"
3125   },
3126   {
3127     ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
3128     -1,                                 -1,
3129     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
3130     8,                                  "Change",
3131     NULL, NULL, NULL,                   "Configure custom element change pages"
3132   },
3133
3134   // ---------- level and editor settings (buttons) ---------------------------
3135
3136   {
3137     ED_TEXTBUTTON_ID_SAVE_LEVELSET,
3138     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
3139     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
3140     -1,                                 "Save",
3141     NULL, NULL, NULL,                   "Update or create level set"
3142   },
3143   {
3144     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
3145     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3146     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
3147     -1,                                 "Save",
3148     NULL, NULL,                         "this level as level template",
3149     "Save current settings as new template"
3150   },
3151
3152   // ---------- element settings (buttons) ------------------------------------
3153
3154   {
3155     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
3156     -1,                                 -1,
3157     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
3158     -1,                                 "Save",
3159     NULL, " ",                          "As Template",
3160     "Save current settings as new template"
3161   },
3162   {
3163     ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
3164     -1,                                 -1,
3165     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
3166     -1,                                 "New",
3167     NULL, NULL, NULL,                   "Add new change page"
3168   },
3169   {
3170     ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
3171     -1,                                 -1,
3172     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
3173     -1,                                 "Delete",
3174     NULL, NULL, NULL,                   "Delete current change page"
3175   },
3176 };
3177
3178 static struct
3179 {
3180   int gadget_type_id;
3181   int graphic;
3182   int x, y;
3183   int gadget_id;
3184   int gadget_id_align;
3185   char *text_left, *text_right, *infotext;
3186 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
3187 {
3188   {
3189     ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
3190     IMG_EDITOR_COUNTER_DOWN,
3191     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3192     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
3193     NULL, NULL,                         "Select previous change page"
3194   },
3195   {
3196     ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
3197     IMG_EDITOR_COUNTER_UP,
3198     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3199     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
3200     NULL, "Change page",                "Select next change page"
3201   },
3202   {
3203     ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
3204     IMG_GFX_EDITOR_BUTTON_CP_COPY,
3205     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3206     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
3207     " ", NULL,                          "Copy settings from this change page"
3208   },
3209   {
3210     ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
3211     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
3212     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3213     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
3214     NULL, NULL,                         "Paste settings to this change page"
3215   },
3216 };
3217
3218 static struct
3219 {
3220   int x, y;
3221 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
3222
3223 static struct
3224 {
3225   int gadget_type_id;
3226   int graphic;
3227   int gadget_id;
3228   char *infotext;
3229 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
3230 {
3231   {
3232     ED_SCROLLBUTTON_ID_AREA_UP,
3233     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
3234     GADGET_ID_SCROLL_UP,
3235     "Scroll level editing area up"
3236   },
3237   {
3238     ED_SCROLLBUTTON_ID_AREA_DOWN,
3239     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
3240     GADGET_ID_SCROLL_DOWN,
3241     "Scroll level editing area down"
3242   },
3243   {
3244     ED_SCROLLBUTTON_ID_AREA_LEFT,
3245     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
3246     GADGET_ID_SCROLL_LEFT,
3247     "Scroll level editing area left"
3248   },
3249   {
3250     ED_SCROLLBUTTON_ID_AREA_RIGHT,
3251     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
3252     GADGET_ID_SCROLL_RIGHT,
3253     "Scroll level editing area right"
3254   },
3255   {
3256     ED_SCROLLBUTTON_ID_LIST_UP,
3257     IMG_EDITOR_PALETTE_SCROLL_UP,
3258     GADGET_ID_SCROLL_LIST_UP,
3259     "Scroll element list up ('Page Up')"
3260   },
3261   {
3262     ED_SCROLLBUTTON_ID_LIST_DOWN,
3263     IMG_EDITOR_PALETTE_SCROLL_DOWN,
3264     GADGET_ID_SCROLL_LIST_DOWN,
3265     "Scroll element list down ('Page Down')"
3266   },
3267 };
3268
3269 static struct
3270 {
3271   int x, y;
3272   int width, height;
3273   int wheel_x, wheel_y;
3274   int wheel_width, wheel_height;
3275 } scrollbar_pos[ED_NUM_SCROLLBARS];
3276
3277 static struct
3278 {
3279   int gadget_type_id;
3280   int graphic;
3281   int type;
3282   int gadget_id;
3283   char *infotext;
3284 } scrollbar_info[ED_NUM_SCROLLBARS] =
3285 {
3286   {
3287     ED_SCROLLBAR_ID_AREA_HORIZONTAL,
3288     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3289     GD_TYPE_SCROLLBAR_HORIZONTAL,
3290     GADGET_ID_SCROLL_HORIZONTAL,
3291     "Scroll level editing area horizontally"
3292   },
3293   {
3294     ED_SCROLLBAR_ID_AREA_VERTICAL,
3295     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3296     GD_TYPE_SCROLLBAR_VERTICAL,
3297     GADGET_ID_SCROLL_VERTICAL,
3298     "Scroll level editing area vertically"
3299   },
3300   {
3301     ED_SCROLLBAR_ID_LIST_VERTICAL,
3302     IMG_EDITOR_PALETTE_SCROLLBAR,
3303     GD_TYPE_SCROLLBAR_VERTICAL,
3304     GADGET_ID_SCROLL_LIST_VERTICAL,
3305     "Scroll element list vertically"
3306   }
3307 };
3308
3309
3310 static struct
3311 {
3312   int gadget_type_id;
3313   int x, y;
3314   int gadget_id;
3315   int gadget_id_align;
3316   int radio_button_nr;
3317   int *value;
3318   int checked_value;
3319   char *text_left, *text_right, *infotext;
3320 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3321 {
3322   {
3323     ED_RADIOBUTTON_ID_PERCENTAGE,
3324     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3325     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3326     RADIO_NR_RANDOM_ELEMENTS,
3327     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3328     " ", "percentage",                  "Use percentage for random elements"
3329   },
3330   {
3331     ED_RADIOBUTTON_ID_QUANTITY,
3332     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3333     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3334     RADIO_NR_RANDOM_ELEMENTS,
3335     &random_placement_method,           RANDOM_USE_QUANTITY,
3336     " ", "quantity",                    "Use quantity for random elements"
3337   }
3338 };
3339
3340 static struct
3341 {
3342   int gadget_type_id;
3343   int x, y;
3344   int gadget_id;
3345   int gadget_id_align;
3346   boolean *value;
3347   char *text_above, *text_left, *text_right, *infotext;
3348 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3349 {
3350   // ---------- level and editor settings -------------------------------------
3351
3352   {
3353     ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
3354     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3355     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3356     &level.auto_count_gems,
3357     NULL, NULL,
3358     "Automatically count gems needed",  "Set counter to number of gems"
3359   },
3360   {
3361     ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
3362     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3363     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3364     &level.rate_time_over_score,
3365     NULL, NULL,
3366     "Rate time/steps used over score",  "Sort high scores by playing time/steps"
3367   },
3368   {
3369     ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
3370     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3371     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3372     &levelset_use_levelset_artwork,
3373     NULL, NULL,
3374     "Use current custom artwork",       "Use custom artwork of this level set"
3375   },
3376   {
3377     ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
3378     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3379     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3380     &levelset_copy_level_template,
3381     NULL, NULL,
3382     "Copy current level template",      "Copy level template of this level set"
3383   },
3384   {
3385     ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
3386     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3387     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3388     &random_placement_background_restricted,
3389     NULL, NULL,
3390     "Restrict random placement to:",    "Set random placement restriction"
3391   },
3392   {
3393     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
3394     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3395     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3396     &setup.editor.use_template_for_new_levels,
3397     "Template for new levels and CE/GE:", NULL,
3398     "Use template for new levels",      "Use template for level properties"
3399   },
3400   {
3401     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
3402     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3403     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3404     &level.use_custom_template,
3405     NULL, NULL,
3406     "Use template for custom elements", "Use template for custom properties"
3407   },
3408   {
3409     ED_CHECKBUTTON_ID_BD_INTERMISSION,
3410     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
3411     GADGET_ID_BD_INTERMISSION,          GADGET_ID_NONE,
3412     &level.bd_intermission,
3413     "Boulder Dash game engine settings:", NULL,
3414     "Intermission",                     "Level is an intermission level"
3415   },
3416   {
3417     ED_CHECKBUTTON_ID_BD_PAL_TIMING,
3418     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
3419     GADGET_ID_BD_PAL_TIMING,            GADGET_ID_NONE,
3420     &level.bd_pal_timing,
3421     NULL, NULL,
3422     "PAL timing",                       "Use slower timer (like PAL C64)"
3423   },
3424   {
3425     ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
3426     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3427     GADGET_ID_BD_LINE_SHIFTING_BORDERS, GADGET_ID_NONE,
3428     &level.bd_line_shifting_borders,
3429     "Compatibility settings:", NULL,
3430     "Line-shifting borders",            "Use line-shifting wrap-around"
3431   },
3432   {
3433     ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
3434     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3435     GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW, GADGET_ID_NONE,
3436     &level.bd_scan_first_and_last_row,
3437     NULL, NULL,
3438     "Scan first and last row",          "Also process top/bottom border rows"
3439   },
3440   {
3441     ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
3442     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3443     GADGET_ID_BD_SHORT_EXPLOSIONS,      GADGET_ID_NONE,
3444     &level.bd_short_explosions,
3445     NULL, NULL,
3446     "Short explosions",                 "Use four game cycles for explosions"
3447   },
3448   {
3449     ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
3450     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(9),
3451     GADGET_ID_BD_GRAVITY_AFFECTS_ALL,   GADGET_ID_NONE,
3452     &level.bd_gravity_affects_all,
3453     NULL, NULL,
3454     "Gravity change affects everything", "Gravity affects all falling objects"
3455   },
3456
3457   // ---------- element settings: configure (various elements) ----------------
3458
3459   {
3460     ED_CHECKBUTTON_ID_STICK_ELEMENT,
3461     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3462     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3463     &stick_element_properties_window,
3464     NULL, NULL,
3465     "Stick this screen to edit content","Stick this screen to edit content"
3466   },
3467   {
3468     ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
3469     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3470     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3471     &level.em_slippery_gems,
3472     NULL, NULL,
3473     "Slip down from certain flat walls","Use EM/DC style slipping behaviour"
3474   },
3475   {
3476     ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
3477     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3478     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3479     &level.em_explodes_by_fire,
3480     NULL, NULL,
3481     "Explodes with chain reaction",     "Use R'n'D style explosion behaviour"
3482   },
3483   {
3484     ED_CHECKBUTTON_ID_USE_SPRING_BUG,
3485     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3486     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3487     &level.use_spring_bug,
3488     NULL, NULL,
3489     "Use spring pushing bug",           "Use odd spring pushing behaviour"
3490   },
3491   {
3492     ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
3493     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3494     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3495     &level.use_time_orb_bug,
3496     NULL, NULL,
3497     "Use time orb bug",                 "Use odd time orb behaviour"
3498   },
3499   {
3500     ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
3501     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3502     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3503     &level.use_life_bugs,
3504     NULL, NULL,
3505     "Use buggy element behaviour",      "Use odd (historic) element behaviour"
3506   },
3507   {
3508     ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
3509     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3510     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3511     &level.ball_random,
3512     NULL, NULL,
3513     "Create single random element",     "Only create one element from content"
3514   },
3515   {
3516     ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
3517     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3518     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3519     &level.ball_active_initial,
3520     NULL, NULL,
3521     "Magic ball initially activated",   "Activate magic ball after level start"
3522   },
3523   {
3524     ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
3525     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3526     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3527     &level.grow_into_diggable,
3528     NULL, NULL,
3529     "Can grow into anything diggable",  "Grow into more than just sand"
3530   },
3531   {
3532     ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
3533     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3534     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3535     &level.sb_fields_needed,
3536     NULL, NULL,
3537     "All fields need to be filled",     "Require all SB fields to be solved"
3538   },
3539   {
3540     ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
3541     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3542     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3543     &level.sb_objects_needed,
3544     NULL, NULL,
3545     "All objects need to be placed",    "Require all SB objects to be solved"
3546   },
3547   {
3548     ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
3549     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3550     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3551     &level.auto_exit_sokoban,
3552     NULL, NULL,
3553     "Exit level if all tasks solved",   "Automatically finish Sokoban levels"
3554   },
3555   {
3556     ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
3557     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3558     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3559     &level.solved_by_one_player,
3560     NULL, NULL,
3561     "Only one player must enter exit",  "Level solved by first player in exit"
3562   },
3563   {
3564     ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
3565     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3566     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3567     &level.finish_dig_collect,
3568     NULL, NULL,
3569     "CE action on finished dig/collect", "Only finished dig/collect triggers CE"
3570   },
3571   {
3572     ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
3573     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3574     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3575     &level.keep_walkable_ce,
3576     NULL, NULL,
3577     "Keep walkable CE changed to player", "Keep CE changing to player if walkable"
3578   },
3579   {
3580     ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
3581     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3582     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3583     &level.continuous_snapping,
3584     NULL, NULL,
3585     "Continuous snapping",              "Use snapping without releasing key"
3586   },
3587   {
3588     ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
3589     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3590     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3591     &level.block_snap_field,
3592     NULL, NULL,
3593     "Block snapped field when snapping", "Use snapping delay to show animation"
3594   },
3595   {
3596     ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
3597     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3598     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3599     &level.block_last_field,
3600     NULL, NULL,
3601     "Block last field when moving",     "Player blocks last field when moving"
3602   },
3603   {
3604     ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
3605     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3606     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3607     &level.sp_block_last_field,
3608     NULL, NULL,
3609     "Block last field when moving",     "Player blocks last field when moving"
3610   },
3611   {
3612     ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
3613     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3614     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3615     &level.instant_relocation,
3616     NULL, NULL,
3617     "No scrolling when relocating",     "Player gets relocated without delay"
3618   },
3619   {
3620     ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
3621     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3622     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3623     &level.shifted_relocation,
3624     NULL, NULL,
3625     "No centering when relocating",     "Level not centered after relocation"
3626   },
3627   {
3628     ED_CHECKBUTTON_ID_LAZY_RELOCATION,
3629     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3630     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3631     &level.lazy_relocation,
3632     NULL, NULL,
3633     "Only redraw off-screen relocation","No redraw if relocation target visible"
3634   },
3635   {
3636     ED_CHECKBUTTON_ID_USE_START_ELEMENT,
3637     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3638     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3639     &level.use_start_element[0],
3640     NULL, NULL,
3641     "Use level start element:",        "Start level at this element's position"
3642   },
3643   {
3644     ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
3645     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3646     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3647     &level.use_artwork_element[0],
3648     NULL, NULL,
3649     "Use artwork from element:",        "Use player artwork from other element"
3650   },
3651   {
3652     ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
3653     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3654     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3655     &level.use_explosion_element[0],
3656     NULL, NULL,
3657     "Use explosion from element:",      "Use explosion properties from element"
3658   },
3659   {
3660     ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
3661     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3662     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3663     &level.initial_player_gravity[0],
3664     NULL, NULL,
3665     "Use initial gravity",              "Set initial player gravity"
3666   },
3667   {
3668     ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
3669     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3670     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3671     &level.use_initial_inventory[0],
3672     NULL, NULL,
3673     "Use initial inventory:",           "Use collected elements on level start"
3674   },
3675   {
3676     ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
3677     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3678     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3679     &level.can_pass_to_walkable,
3680     NULL, NULL,
3681     "Can pass to walkable element",     "Player can pass to empty or walkable"
3682   },
3683   {
3684     ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
3685     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3686     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3687     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3688     NULL, NULL,
3689     "Can fall into acid (with gravity)","Player can fall into acid pool"
3690   },
3691   {
3692     ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
3693     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3694     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3695     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3696     NULL, NULL,
3697     "Can move into acid",               "Element can move into acid pool"
3698   },
3699   {
3700     ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
3701     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3702     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3703     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3704     NULL, NULL,
3705     "Deadly when colliding with",       "Element is deadly when hitting player"
3706   },
3707   {
3708     ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
3709     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3710     GADGET_ID_BD_DIAGONAL_MOVEMENTS,    GADGET_ID_NONE,
3711     &level.bd_diagonal_movements,
3712     NULL, NULL,
3713     "Can move diagonally",              "Player can move diagonally"
3714   },
3715   {
3716     ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
3717     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3718     GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE, GADGET_ID_NONE,
3719     &level.bd_topmost_player_active,
3720     NULL, NULL,
3721     "Topmost player is active",         "Use first player found on playfield"
3722   },
3723   {
3724     ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
3725     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3726     GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET, GADGET_ID_NONE,
3727     &level.bd_push_mega_rock_with_sweet,
3728     NULL, NULL,
3729     "Mega rocks pushable with sweet",   "Push mega rocks after eating sweet"
3730   },
3731   {
3732     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
3733     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3734     GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING, GADGET_ID_NONE,
3735     &level.bd_magic_wall_wait_hatching,
3736     NULL, NULL,
3737     "Wait for player's birth",          "Timer start waits for player's birth"
3738   },
3739   {
3740     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
3741     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3742     GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA, GADGET_ID_NONE,
3743     &level.bd_magic_wall_stops_amoeba,
3744     NULL, NULL,
3745     "Turn amoeba to diamonds",          "Activation changes amoeba to diamonds"
3746   },
3747   {
3748     ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
3749     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3750     GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING, GADGET_ID_NONE,
3751     &level.bd_amoeba_wait_for_hatching,
3752     NULL, NULL,
3753     "Wait for player's birth",          "Timer start waits for player's birth"
3754   },
3755   {
3756     ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
3757     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3758     GADGET_ID_BD_AMOEBA_START_IMMEDIATELY, GADGET_ID_NONE,
3759     &level.bd_amoeba_start_immediately,
3760     NULL, NULL,
3761     "Start growing immediately",        "Start slow growth time immediately"
3762   },
3763   {
3764     ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
3765     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3766     GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA, GADGET_ID_NONE,
3767     &level.bd_amoeba_2_explode_by_amoeba,
3768     NULL, NULL,
3769     "Explodes if touched by amoeba",    "Amoeba 2 explodes if touched by amoeba"
3770   },
3771   {
3772     ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
3773     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3774     GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS, GADGET_ID_NONE,
3775     &level.bd_voodoo_collects_diamonds,
3776     NULL, NULL,
3777     "Can collect diamonds",             "Can collect diamonds for the player"
3778   },
3779   {
3780     ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
3781     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3782     GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER, GADGET_ID_NONE,
3783     &level.bd_voodoo_hurt_kills_player,
3784     NULL, NULL,
3785     "Player is killed if hurt",         "If hurt in any way, player is killed"
3786   },
3787   {
3788     ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
3789     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3790     GADGET_ID_BD_VOODOO_DIES_BY_ROCK,   GADGET_ID_NONE,
3791     &level.bd_voodoo_dies_by_rock,
3792     NULL, NULL,
3793     "Killed by falling rock",           "Can be killed by a falling rock"
3794   },
3795   {
3796     ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
3797     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3798     GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION, GADGET_ID_NONE,
3799     &level.bd_voodoo_vanish_by_explosion,
3800     NULL, NULL,
3801     "Disappears in explosions",         "Can be destroyed by explosions"
3802   },
3803   {
3804     ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE,
3805     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3806     GADGET_ID_BD_SLIME_IS_PREDICTABLE, GADGET_ID_NONE,
3807     &level.bd_slime_is_predictable,
3808     NULL, NULL,
3809     "Slime is predictable",             "Use predictable random numbers"
3810   },
3811   {
3812     ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
3813     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3814     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3815     &level.envelope[0].autowrap,
3816     NULL, NULL,
3817     "Auto-wrap",                        "Automatically wrap envelope text"
3818   },
3819   {
3820     ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
3821     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3822     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3823     &level.envelope[0].centered,
3824     NULL, " ",
3825     "Centered",                         "Automatically center envelope text"
3826   },
3827   {
3828     ED_CHECKBUTTON_ID_MM_LASER_RED,
3829     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3830     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3831     &level.mm_laser_red,
3832     "Choose color components for laser:", NULL,
3833     "Red",                              "Use red color components in laser"
3834   },
3835   {
3836     ED_CHECKBUTTON_ID_MM_LASER_GREEN,
3837     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3838     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3839     &level.mm_laser_green,
3840     NULL, NULL,
3841     "Green",                            "Use green color components in laser"
3842   },
3843   {
3844     ED_CHECKBUTTON_ID_MM_LASER_BLUE,
3845     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3846     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3847     &level.mm_laser_blue,
3848     NULL, NULL,
3849     "Blue",                             "Use blue color components in laser"
3850   },
3851   {
3852     ED_CHECKBUTTON_ID_DF_LASER_RED,
3853     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3854     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3855     &level.df_laser_red,
3856     "Choose color components for laser:", NULL,
3857     "Red",                              "Use red color components in laser"
3858   },
3859   {
3860     ED_CHECKBUTTON_ID_DF_LASER_GREEN,
3861     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3862     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3863     &level.df_laser_green,
3864     NULL, NULL,
3865     "Green",                            "Use green color components in laser"
3866   },
3867   {
3868     ED_CHECKBUTTON_ID_DF_LASER_BLUE,
3869     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3870     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3871     &level.df_laser_blue,
3872     NULL, NULL,
3873     "Blue",                             "Use blue color components in laser"
3874   },
3875   {
3876     ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
3877     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3878     GADGET_ID_ROTATE_MM_BALL_CONTENT,   GADGET_ID_NONE,
3879     &level.rotate_mm_ball_content,
3880     NULL, NULL,
3881     "Randomly rotate created content",  "Randomly rotate newly created content"
3882   },
3883   {
3884     ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
3885     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3886     GADGET_ID_EXPLODE_MM_BALL,          GADGET_ID_NONE,
3887     &level.explode_mm_ball,
3888     NULL, NULL,
3889     "Explode ball instead of melting",  "Use explosion to release ball content"
3890   },
3891
3892   // ---------- element settings: configure 1 (custom elements) ---------------
3893
3894   {
3895     ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
3896     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3897     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3898     &custom_element.use_gfx_element,
3899     NULL, NULL,
3900     "Use graphic of element:",          "Use existing element graphic"
3901   },
3902   {
3903     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
3904     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3905     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3906     &level.use_custom_template,
3907     NULL, NULL,
3908     "Use template",                     "Use template for custom properties"
3909   },
3910   {
3911     ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
3912     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3913     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3914     &custom_element_properties[EP_ACCESSIBLE],
3915     NULL, NULL,
3916     NULL,                               "Player can walk to or pass this field"
3917   },
3918   {
3919     ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
3920     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3921     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3922     &custom_element_properties[EP_GRAVITY_REACHABLE],
3923     NULL, NULL,
3924     "Reachable despite gravity",        "Player can walk/dig despite gravity"
3925   },
3926   {
3927     ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
3928     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3929     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3930     &custom_element.use_last_ce_value,
3931     NULL, NULL,
3932     "Use last CE value after change",   "Use last CE value after change"
3933   },
3934   {
3935     ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
3936     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3937     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3938     &custom_element_properties[EP_WALK_TO_OBJECT],
3939     NULL, NULL,
3940     NULL,                               "Player can dig/collect/push element"
3941   },
3942   {
3943     ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
3944     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3945     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3946     &custom_element_properties[EP_INDESTRUCTIBLE],
3947     NULL, NULL,
3948     "Indestructible",                   "Element is indestructible"
3949   },
3950
3951   // ---------- element settings: configure 2 (custom elements) ---------------
3952
3953   {
3954     ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
3955     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3956     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
3957     &custom_element_properties[EP_CAN_MOVE],
3958     NULL, NULL,
3959     NULL,                               "Element can move with some pattern"
3960   },
3961   {
3962     ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
3963     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3964     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
3965     &custom_element_properties[EP_CAN_FALL],
3966     NULL, NULL,
3967     "Can fall",                         "Element can fall down"
3968   },
3969   {
3970     ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
3971     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
3972     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
3973     &custom_element_properties[EP_CAN_SMASH],
3974     NULL, " ",
3975     NULL,                               "Element can smash other elements"
3976   },
3977   {
3978     ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
3979     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3980     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
3981     &custom_element_properties[EP_SLIPPERY],
3982     NULL, NULL,
3983     NULL,                               "Other elements can fall down from it"
3984   },
3985   {
3986     ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
3987     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3988     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
3989     &custom_element_properties[EP_DEADLY],
3990     NULL, NULL,
3991     NULL,                               "Element can kill the player"
3992   },
3993   {
3994     ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
3995     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3996     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
3997     &custom_element_properties[EP_CAN_EXPLODE],
3998     NULL, NULL,
3999     NULL,                               "Element can explode"
4000   },
4001   {
4002     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
4003     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
4004     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
4005     &custom_element_properties[EP_EXPLODES_BY_FIRE],
4006     NULL, NULL,
4007     "By fire",                          "Element can explode by fire/explosion"
4008   },
4009   {
4010     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
4011     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
4012     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
4013     &custom_element_properties[EP_EXPLODES_SMASHED],
4014     NULL, " ",
4015     "Smashed",                          "Element can explode when smashed"
4016   },
4017   {
4018     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
4019     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
4020     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
4021     &custom_element_properties[EP_EXPLODES_IMPACT],
4022     NULL, " ",
4023     "Impact",                           "Element can explode on impact"
4024   },
4025
4026   // ---------- element settings: advanced (custom elements) ------------------
4027
4028   {
4029     ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
4030     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
4031     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
4032     &custom_element_change.can_change,
4033     NULL, NULL,
4034     "Element changes to:",              "Change element on specified condition"
4035   },
4036   {
4037     ED_CHECKBUTTON_ID_CHANGE_DELAY,
4038     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
4039     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
4040     &custom_element_change_events[CE_DELAY],
4041     NULL, NULL,
4042     NULL,                               "Element changes after delay"
4043   },
4044   {
4045     ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
4046     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
4047     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
4048     &custom_element_change_events[CE_BY_DIRECT_ACTION],
4049     NULL, NULL,
4050     NULL,                               "Element changes by direct action"
4051   },
4052   {
4053     ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
4054     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
4055     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
4056     &custom_element_change_events[CE_BY_OTHER_ACTION],
4057     NULL, NULL,
4058     NULL,                               "Element changes by other element"
4059   },
4060   {
4061     ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
4062     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
4063     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
4064     &custom_element_change.explode,
4065     NULL, NULL,
4066     "Explode instead of change",        "Element explodes instead of change"
4067   },
4068   {
4069     ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
4070     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
4071     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
4072     &custom_element_change.use_target_content,
4073     NULL, NULL,
4074     "Use extended change target:",      "Element changes to more elements"
4075   },
4076   {
4077     ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
4078     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
4079     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
4080     &custom_element_change.only_if_complete,
4081     NULL, NULL,
4082     "Replace all or nothing",           "Only replace when all can be changed"
4083   },
4084   {
4085     ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
4086     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
4087     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
4088     &custom_element_change.use_random_replace,
4089     NULL, NULL,
4090     NULL,                               "Use percentage for random replace"
4091   },
4092   {
4093     ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
4094     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
4095     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
4096     &custom_element_change.has_action,
4097     NULL, NULL,
4098     NULL,                               "Execute action on specified condition"
4099   },
4100 };
4101
4102 static struct
4103 {
4104   int gadget_type_id;
4105   int x, y;
4106   int xoffset, yoffset;
4107   int gadget_id;
4108   int gadget_id_align;
4109   int *value;
4110   int area_xsize, area_ysize;
4111   char *text_left, *text_right, *text_above, *text_below, *infotext;
4112 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
4113 {
4114   // ---------- level playfield content ---------------------------------------
4115
4116   {
4117     ED_DRAWING_ID_DRAWING_LEVEL,
4118     0,                                  0,
4119     0,                                  0,
4120     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
4121     NULL,
4122     -1, -1,     // these values are not constant, but can change at runtime
4123     NULL, NULL, NULL, NULL,             NULL
4124   },
4125
4126   // ---------- yam yam content -----------------------------------------------
4127
4128   {
4129     ED_DRAWING_ID_YAMYAM_CONTENT_0,
4130     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4131     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
4132     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
4133     &level.yamyam_content[0].e[0][0],   3, 3,
4134     NULL, NULL, NULL, "1",              NULL
4135   },
4136   {
4137     ED_DRAWING_ID_YAMYAM_CONTENT_1,
4138     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4139     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
4140     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
4141     &level.yamyam_content[1].e[0][0],   3, 3,
4142     NULL, NULL, NULL, "2",              NULL
4143   },
4144   {
4145     ED_DRAWING_ID_YAMYAM_CONTENT_2,
4146     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4147     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
4148     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
4149     &level.yamyam_content[2].e[0][0],   3, 3,
4150     NULL, NULL, NULL, "3",              NULL
4151   },
4152   {
4153     ED_DRAWING_ID_YAMYAM_CONTENT_3,
4154     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4155     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
4156     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
4157     &level.yamyam_content[3].e[0][0],   3, 3,
4158     NULL, NULL, NULL, "4",              NULL
4159   },
4160   {
4161     ED_DRAWING_ID_YAMYAM_CONTENT_4,
4162     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4163     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
4164     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
4165     &level.yamyam_content[4].e[0][0],   3, 3,
4166     NULL, NULL, NULL, "5",              NULL
4167   },
4168   {
4169     ED_DRAWING_ID_YAMYAM_CONTENT_5,
4170     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4171     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
4172     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
4173     &level.yamyam_content[5].e[0][0],   3, 3,
4174     NULL, NULL, NULL, "6",              NULL
4175   },
4176   {
4177     ED_DRAWING_ID_YAMYAM_CONTENT_6,
4178     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4179     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
4180     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
4181     &level.yamyam_content[6].e[0][0],   3, 3,
4182     NULL, NULL, NULL, "7",              NULL
4183   },
4184   {
4185     ED_DRAWING_ID_YAMYAM_CONTENT_7,
4186     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4187     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
4188     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
4189     &level.yamyam_content[7].e[0][0],   3, 3,
4190     NULL, NULL, NULL, "8",              NULL
4191   },
4192
4193   // ---------- magic ball content --------------------------------------------
4194
4195   {
4196     ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
4197     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4198     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
4199     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
4200     &level.ball_content[0].e[0][0],     3, 3,
4201     NULL, NULL, NULL, "1",              NULL
4202   },
4203   {
4204     ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
4205     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4206     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
4207     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
4208     &level.ball_content[1].e[0][0],     3, 3,
4209     NULL, NULL, NULL, "2",              NULL
4210   },
4211   {
4212     ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
4213     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4214     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
4215     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
4216     &level.ball_content[2].e[0][0],     3, 3,
4217     NULL, NULL, NULL, "3",              NULL
4218   },
4219   {
4220     ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
4221     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4222     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
4223     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
4224     &level.ball_content[3].e[0][0],     3, 3,
4225     NULL, NULL, NULL, "4",              NULL
4226   },
4227   {
4228     ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
4229     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4230     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
4231     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
4232     &level.ball_content[4].e[0][0],     3, 3,
4233     NULL, NULL, NULL, "5",              NULL
4234   },
4235   {
4236     ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
4237     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4238     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
4239     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
4240     &level.ball_content[5].e[0][0],     3, 3,
4241     NULL, NULL, NULL, "6",              NULL
4242   },
4243   {
4244     ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
4245     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4246     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
4247     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
4248     &level.ball_content[6].e[0][0],     3, 3,
4249     NULL, NULL, NULL, "7",              NULL
4250   },
4251   {
4252     ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
4253     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4254     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
4255     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
4256     &level.ball_content[7].e[0][0],     3, 3,
4257     NULL, NULL, NULL, "8",              NULL
4258   },
4259
4260   // ---------- android content -----------------------------------------------
4261
4262   {
4263     ED_DRAWING_ID_ANDROID_CONTENT,
4264     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
4265     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4266     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
4267     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
4268     NULL, NULL, "Elements:", NULL,      "Elements android can clone"
4269   },
4270
4271   // ---------- amoeba content ------------------------------------------------
4272
4273   {
4274     ED_DRAWING_ID_AMOEBA_CONTENT,
4275     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
4276     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4277     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
4278     &level.amoeba_content,              1, 1,
4279     "Content:", NULL, NULL, NULL,       "Amoeba content"
4280   },
4281
4282   // ---------- BD snap element -----------------------------------------------
4283
4284   {
4285     ED_DRAWING_ID_BD_SNAP_ELEMENT,
4286     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(5),
4287     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4288     GADGET_ID_BD_SNAP_ELEMENT,          GADGET_ID_NONE,
4289     &level.bd_snap_element,             1, 1,
4290     "Snap element:", NULL, NULL, NULL,  "Element created when snapping"
4291   },
4292
4293   // ---------- BD amoeba content ---------------------------------------------
4294
4295   {
4296     ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
4297     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4298     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4299     GADGET_ID_BD_AMOEBA_CONTENT_TOO_BIG, GADGET_ID_NONE,
4300     &level.bd_amoeba_content_too_big,   1, 1,
4301     "If too big, changes to:", NULL, NULL, NULL,        "BD amoeba content if too big"
4302   },
4303   {
4304     ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
4305     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4306     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4307     GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED, GADGET_ID_NONE,
4308     &level.bd_amoeba_content_enclosed,  1, 1,
4309     "If enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba content if enclosed"
4310   },
4311
4312   // ---------- BD amoeba 2 content -------------------------------------------
4313
4314   {
4315     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
4316     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4317     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4318     GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG, GADGET_ID_NONE,
4319     &level.bd_amoeba_2_content_too_big, 1, 1,
4320     "If too big, changes to:", NULL, NULL, NULL,        "BD amoeba 2 content if too big"
4321   },
4322   {
4323     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
4324     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4325     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4326     GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED, GADGET_ID_NONE,
4327     &level.bd_amoeba_2_content_enclosed,        1, 1,
4328     "If enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba 2 content if enclosed"
4329   },
4330   {
4331     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
4332     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(10),
4333     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4334     GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING, GADGET_ID_NONE,
4335     &level.bd_amoeba_2_content_exploding,       1, 1,
4336     "If exploding, changes to:", NULL, NULL, NULL,      "BD amoeba 2 content if exploding"
4337   },
4338   {
4339     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
4340     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(11),
4341     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4342     GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,   GADGET_ID_NONE,
4343     &level.bd_amoeba_2_content_looks_like,      1, 1,
4344     "Use graphic of element:", NULL, NULL, NULL,        "BD amoeba 2 looks like this element"
4345   },
4346   {
4347     ED_DRAWING_ID_BD_ACID_EATS_ELEMENT,
4348     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(1),
4349     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4350     GADGET_ID_BD_ACID_EATS_ELEMENT,     GADGET_ID_NONE,
4351     &level.bd_acid_eats_element,        1, 1,
4352     "Can eat:", NULL, NULL, NULL,               "Eats this element when spreading"
4353   },
4354   {
4355     ED_DRAWING_ID_BD_ACID_TURNS_TO_ELEMENT,
4356     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
4357     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4358     GADGET_ID_BD_ACID_TURNS_TO_ELEMENT, GADGET_ID_NONE,
4359     &level.bd_acid_turns_to_element,    1, 1,
4360     "Can leave behind:", NULL, NULL, NULL,      "Turns to this element after spreading"
4361   },
4362   {
4363     ED_DRAWING_ID_BD_BITER_EATS_ELEMENT,
4364     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4365     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4366     GADGET_ID_BD_BITER_EATS_ELEMENT,    GADGET_ID_NONE,
4367     &level.bd_biter_eats_element,       1, 1,
4368     "Can eat:", NULL, NULL, NULL,       "Eats this element when moving"
4369   },
4370
4371   // ---------- level start element -------------------------------------------
4372
4373   {
4374     ED_DRAWING_ID_START_ELEMENT,
4375     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
4376     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4377     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
4378     &level.start_element[0],            1, 1,
4379     NULL, NULL, NULL, NULL,             "Level start element"
4380   },
4381
4382   // ---------- player artwork element ----------------------------------------
4383
4384   {
4385     ED_DRAWING_ID_ARTWORK_ELEMENT,
4386     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
4387     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4388     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
4389     &level.artwork_element[0],          1, 1,
4390     NULL, NULL, NULL, NULL,             "Element for player artwork"
4391   },
4392
4393   // ---------- player explosion element --------------------------------------
4394
4395   {
4396     ED_DRAWING_ID_EXPLOSION_ELEMENT,
4397     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
4398     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4399     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
4400     &level.explosion_element[0],        1, 1,
4401     NULL, NULL, NULL, NULL,             "Element for player explosion"
4402   },
4403
4404   // ---------- player initial inventory --------------------------------------
4405
4406   {
4407     ED_DRAWING_ID_INVENTORY_CONTENT,
4408     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4409     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4410     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
4411     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
4412     NULL, NULL, NULL, NULL,             "Content for initial inventory"
4413   },
4414
4415   // ---------- gray ball content -----------------------------------------
4416
4417   {
4418     ED_DRAWING_ID_MM_BALL_CONTENT,
4419     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4420     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4421     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
4422     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
4423     "Content:", NULL, NULL, NULL,       "Content for gray ball"
4424   },
4425
4426   // ---------- element settings: configure 1 (custom elements) ---------------
4427
4428   // ---------- custom graphic ------------------------------------------------
4429
4430   {
4431     ED_DRAWING_ID_CUSTOM_GRAPHIC,
4432     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4433     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4434     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
4435     &custom_element.gfx_element_initial, 1, 1,
4436     NULL, NULL, NULL, NULL,             "Custom graphic element"
4437   },
4438
4439   // ---------- element settings: configure 2 (custom elements) ---------------
4440
4441   // ---------- custom content (when exploding) -------------------------------
4442
4443   {
4444     ED_DRAWING_ID_CUSTOM_CONTENT,
4445     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
4446     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4447     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
4448     &custom_element.content.e[0][0],    3, 3,
4449     "Content:", NULL, NULL, NULL,       NULL
4450   },
4451
4452   // ---------- custom enter and leave element (when moving) ------------------
4453
4454   {
4455     ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
4456     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
4457     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4458     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
4459     &custom_element.move_enter_element, 1, 1,
4460     "Can dig:", " ", NULL, NULL,        "Element that can be digged/collected"
4461   },
4462   {
4463     ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
4464     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
4465     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4466     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
4467     &custom_element.move_leave_element, 1, 1,
4468     NULL, NULL, NULL, NULL,             "Element that will be left behind"
4469   },
4470
4471   // ---------- element settings: advanced (custom elements) ------------------
4472
4473   // ---------- custom change target ------------------------------------------
4474
4475   {
4476     ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
4477     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4478     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4479     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
4480     &custom_element_change.target_element, 1, 1,
4481     NULL, "after/when:", NULL, NULL,    "New target element after change"
4482   },
4483
4484   // ---------- custom change content (extended change target) ----------------
4485
4486   {
4487     ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
4488     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
4489     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4490     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
4491     &custom_element_change.target_content.e[0][0], 3, 3,
4492     NULL, NULL, NULL, NULL,             "New extended elements after change"
4493   },
4494
4495   // ---------- custom change trigger (element causing change) ----------------
4496
4497   {
4498     ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
4499     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
4500     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4501     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
4502     &custom_element_change.initial_trigger_element, 1, 1,
4503     NULL, NULL, NULL, NULL,             "Other element triggering change"
4504   },
4505
4506   // ---------- custom change action (element used for action) ----------------
4507
4508   {
4509     ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
4510     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
4511     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4512     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
4513     &custom_element_change.action_element, 1, 1,
4514     NULL, NULL, NULL, NULL,             "Element used as action parameter"
4515   },
4516
4517   // ---------- group element content -----------------------------------------
4518
4519   {
4520     ED_DRAWING_ID_GROUP_CONTENT,
4521     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4522     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4523     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
4524     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
4525     "Content:", NULL, NULL, NULL,       NULL
4526   },
4527
4528   // ---------- random background (for random painting) -----------------------
4529
4530   {
4531     ED_DRAWING_ID_RANDOM_BACKGROUND,
4532     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
4533     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
4534     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
4535     &random_placement_background_element, 1, 1,
4536     NULL, NULL, NULL, NULL,             "Random placement background"
4537   },
4538 };
4539
4540
4541 // ----------------------------------------------------------------------------
4542 // some internally used variables
4543 // ----------------------------------------------------------------------------
4544
4545 // maximal size of level editor drawing area
4546 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
4547
4548 // actual size of level editor drawing area
4549 static int ed_fieldx, ed_fieldy;
4550
4551 // actual position of level editor drawing area in level playfield
4552 static int level_xpos = -1, level_ypos = -1;
4553
4554 // actual tile size used to display playfield drawing area
4555 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
4556 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
4557
4558 #define IN_ED_FIELD(x, y)       IN_FIELD(x, y, ed_fieldx, ed_fieldy)
4559
4560 // drawing elements on the three mouse buttons
4561 static int new_element1 = EL_WALL;
4562 static int new_element2 = EL_EMPTY;
4563 static int new_element3 = EL_SAND;
4564
4565 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
4566 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
4567                                 (button) == 2 ? new_element2 : \
4568                                 (button) == 3 ? new_element3 : EL_EMPTY)
4569
4570 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
4571
4572 static int use_permanent_palette = TRUE;
4573
4574 #define PX              (use_permanent_palette ? DX : SX)
4575 #define PY              (use_permanent_palette ? DY : SY)
4576 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
4577 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
4578
4579 // forward declaration for internal use
4580 static void CopyBrushToCursor(int, int);
4581 static void DeleteBrushFromCursor(void);
4582 static void ModifyEditorCounterValue(int, int);
4583 static void ModifyEditorCounterLimits(int, int, int);
4584 static void ModifyEditorSelectboxValue(int, int);
4585 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
4586 static void ModifyEditorDrawingArea(int, int, int);
4587 static void ModifyEditorElementList(void);
4588 static void AdjustElementListScrollbar(void);
4589 static void RedrawDrawingElements(void);
4590 static void DrawDrawingWindowExt(boolean);
4591 static void DrawDrawingWindow(void);
4592 static void DrawLevelConfigWindow(void);
4593 static void DrawPropertiesWindow(void);
4594 static void DrawPaletteWindow(void);
4595 static void UpdateCustomElementGraphicGadgets(void);
4596 static boolean checkPropertiesConfig(int);
4597 static void SetAutomaticNumberOfGemsNeeded(void);
4598 static void ClearEditorGadgetInfoText(void);
4599 static void CopyLevelToUndoBuffer(int);
4600 static void HandleDrawingAreas(struct GadgetInfo *);
4601 static void HandleCounterButtons(struct GadgetInfo *);
4602 static void HandleTextInputGadgets(struct GadgetInfo *);
4603 static void HandleTextAreaGadgets(struct GadgetInfo *);
4604 static void HandleSelectboxGadgets(struct GadgetInfo *);
4605 static void HandleTextbuttonGadgets(struct GadgetInfo *);
4606 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
4607 static void HandleRadiobuttons(struct GadgetInfo *);
4608 static void HandleCheckbuttons(struct GadgetInfo *);
4609 static void HandleControlButtons(struct GadgetInfo *);
4610 static void HandleDrawingAreaInfo(struct GadgetInfo *);
4611 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
4612 static boolean AskToCopyAndModifyLevelTemplate(void);
4613 static boolean getDrawModeHiRes(void);
4614 static int getTabulatorBarWidth(void);
4615 static int getTabulatorBarHeight(void);
4616 static Pixel getTabulatorBarColor(void);
4617 static int numHiresTiles(int);
4618
4619 static int num_editor_gadgets = 0;      // dynamically determined
4620
4621 static struct GadgetInfo **level_editor_gadget = NULL;
4622 static int *right_gadget_border = NULL;
4623
4624 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
4625 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
4626 static boolean draw_with_brush = FALSE;
4627 static int properties_element = 0;
4628
4629 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4630 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4631 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4632 static int undo_buffer_position = 0;
4633 static int undo_buffer_steps = 0;
4634 static int redo_buffer_steps = 0;
4635
4636 static int edit_mode;
4637 static int edit_mode_levelconfig;
4638 static int edit_mode_properties;
4639
4640 static int element_shift = 0;
4641
4642 static int editor_el_players[] =
4643 {
4644   EL_PLAYER_1,
4645   EL_PLAYER_2,
4646   EL_PLAYER_3,
4647   EL_PLAYER_4
4648 };
4649 static int *editor_el_players_ptr = editor_el_players;
4650 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
4651
4652 static int editor_hl_boulderdash[] =
4653 {
4654   EL_INTERNAL_CASCADE_BD_ACTIVE,
4655   EL_CHAR('B'),
4656   EL_CHAR('D'),
4657   EL_EMPTY,
4658 };
4659
4660 static int editor_el_boulderdash[] =
4661 {
4662   EL_EMPTY,
4663   EL_SAND,
4664   EL_BD_ROCK,
4665   EL_BD_DIAMOND,
4666
4667   EL_STEELWALL,
4668   EL_BD_WALL,
4669   EL_BD_EXPANDABLE_WALL,
4670   EL_BD_MAGIC_WALL,
4671
4672   EL_BD_AMOEBA,
4673   EL_BD_BUTTERFLY_UP,
4674   EL_BD_FIREFLY_UP,
4675   EL_EXIT_CLOSED,
4676
4677   EL_BD_BUTTERFLY_LEFT,
4678   EL_BD_FIREFLY_LEFT,
4679   EL_BD_BUTTERFLY_RIGHT,
4680   EL_BD_FIREFLY_RIGHT,
4681
4682   EL_EMPTY,
4683   EL_BD_BUTTERFLY_DOWN,
4684   EL_BD_FIREFLY_DOWN,
4685   EL_EXIT_OPEN,
4686 };
4687 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4688 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4689 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4690 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4691
4692 static int editor_hl_boulderdash_native[] =
4693 {
4694   EL_INTERNAL_CASCADE_BD_NATIVE_ACTIVE,
4695   EL_CHAR('B'),
4696   EL_CHAR('D'),
4697   EL_EMPTY,
4698 };
4699
4700 static int editor_el_boulderdash_native[] =
4701 {
4702   EL_EMPTY,
4703   EL_BD_SAND,
4704   EL_BD_ROCK,
4705   EL_BD_DIAMOND,
4706
4707   EL_BD_STEELWALL,
4708   EL_BD_WALL,
4709   EL_BD_SAND_2,
4710   EL_BD_MAGIC_WALL,
4711
4712   EL_BD_AMOEBA,
4713   EL_BD_BUTTERFLY_UP,
4714   EL_BD_FIREFLY_UP,
4715   EL_BD_EXIT_CLOSED,
4716
4717   EL_BD_BUTTERFLY_LEFT,
4718   EL_BD_FIREFLY_LEFT,
4719   EL_BD_BUTTERFLY_RIGHT,
4720   EL_BD_FIREFLY_RIGHT,
4721
4722   EL_BD_INBOX,
4723   EL_BD_BUTTERFLY_DOWN,
4724   EL_BD_FIREFLY_DOWN,
4725   EL_BD_EXIT_OPEN,
4726
4727   EL_BD_AMOEBA_2,
4728   EL_BD_BUTTERFLY_2_UP,
4729   EL_BD_FIREFLY_2_UP,
4730   EL_BD_SLIME,
4731
4732   EL_BD_BUTTERFLY_2_LEFT,
4733   EL_BD_FIREFLY_2_LEFT,
4734   EL_BD_BUTTERFLY_2_RIGHT,
4735   EL_BD_FIREFLY_2_RIGHT,
4736
4737   EL_BD_BOMB,
4738   EL_BD_BUTTERFLY_2_DOWN,
4739   EL_BD_FIREFLY_2_DOWN,
4740   EL_BD_FLYING_DIAMOND,
4741
4742   EL_BD_NITRO_PACK,
4743   EL_BD_DRAGONFLY_UP,
4744   EL_BD_STONEFLY_UP,
4745   EL_BD_DIAMOND_GLUED,
4746
4747   EL_BD_DRAGONFLY_LEFT,
4748   EL_BD_STONEFLY_LEFT,
4749   EL_BD_DRAGONFLY_RIGHT,
4750   EL_BD_STONEFLY_RIGHT,
4751
4752   EL_BD_NUT,
4753   EL_BD_DRAGONFLY_DOWN,
4754   EL_BD_STONEFLY_DOWN,
4755   EL_EMPTY,
4756
4757   EL_BD_BITER_SWITCH_1,
4758   EL_BD_BITER_UP,
4759   EL_BD_COW_UP,
4760   EL_EMPTY,
4761
4762   EL_BD_BITER_LEFT,
4763   EL_BD_COW_LEFT,
4764   EL_BD_BITER_RIGHT,
4765   EL_BD_COW_RIGHT,
4766
4767   EL_BD_VOODOO_DOLL,
4768   EL_BD_BITER_DOWN,
4769   EL_BD_COW_DOWN,
4770   EL_BD_GHOST,
4771
4772   EL_BD_SAND_GLUED,
4773   EL_BD_SAND_BALL,
4774   EL_BD_SAND_LOOSE,
4775   EL_BD_WALL_NON_SLOPED,
4776
4777   EL_BD_SAND_SLOPED_UP_LEFT,
4778   EL_BD_SAND_SLOPED_UP_RIGHT,
4779   EL_BD_WALL_SLOPED_UP_LEFT,
4780   EL_BD_WALL_SLOPED_UP_RIGHT,
4781
4782   EL_BD_SAND_SLOPED_DOWN_LEFT,
4783   EL_BD_SAND_SLOPED_DOWN_RIGHT,
4784   EL_BD_WALL_SLOPED_DOWN_LEFT,
4785   EL_BD_WALL_SLOPED_DOWN_RIGHT,
4786
4787   EL_BD_FLYING_ROCK,
4788   EL_BD_ROCK_GLUED,
4789   EL_BD_STEELWALL_SLOPED_UP_LEFT,
4790   EL_BD_STEELWALL_SLOPED_UP_RIGHT,
4791
4792   EL_BD_WAITING_ROCK,
4793   EL_BD_CHASING_ROCK,
4794   EL_BD_STEELWALL_SLOPED_DOWN_LEFT,
4795   EL_BD_STEELWALL_SLOPED_DOWN_RIGHT,
4796
4797   EL_BD_MEGA_ROCK,
4798   EL_BD_SWEET,
4799   EL_BD_INVISIBLE_EXIT_CLOSED,
4800   EL_BD_INVISIBLE_EXIT_OPEN,
4801
4802   EL_BD_STEELWALL_EXPLODABLE,
4803   EL_BD_STEELWALL_DIGGABLE,
4804   EL_BD_WALL_DIGGABLE,
4805   EL_BD_FALLING_WALL,
4806
4807   EL_BD_EXPANDABLE_WALL_HORIZONTAL,
4808   EL_BD_EXPANDABLE_WALL_VERTICAL,
4809   EL_BD_EXPANDABLE_WALL_ANY,
4810   EL_BD_EXPANDABLE_WALL_SWITCH_HORIZONTAL,
4811
4812   EL_BD_EXPANDABLE_STEELWALL_HORIZONTAL,
4813   EL_BD_EXPANDABLE_STEELWALL_VERTICAL,
4814   EL_BD_EXPANDABLE_STEELWALL_ANY,
4815   EL_BD_CREATURE_SWITCH,
4816
4817   EL_BD_BLADDER,
4818   EL_BD_BLADDER_SPENDER,
4819   EL_BD_REPLICATOR,
4820   EL_BD_REPLICATOR_SWITCH,
4821
4822   EL_BD_CONVEYOR_LEFT,
4823   EL_BD_CONVEYOR_RIGHT,
4824   EL_BD_CONVEYOR_SWITCH,
4825   EL_BD_CONVEYOR_DIR_SWITCH_RIGHT,
4826
4827   EL_BD_CLOCK,
4828   EL_BD_TIME_PENALTY,
4829   EL_BD_GRAVESTONE,
4830   EL_BD_SKELETON,
4831
4832   EL_BD_WATER,
4833   EL_BD_ACID,
4834   EL_BD_LAVA,
4835   EL_BD_BOX,
4836
4837   EL_BD_GATE_1,
4838   EL_BD_GATE_2,
4839   EL_BD_GATE_3,
4840   EL_BD_TRAPPED_DIAMOND,
4841
4842   EL_BD_KEY_1,
4843   EL_BD_KEY_2,
4844   EL_BD_KEY_3,
4845   EL_BD_DIAMOND_KEY,
4846
4847   EL_BD_WALL_KEY_1,
4848   EL_BD_WALL_KEY_2,
4849   EL_BD_WALL_KEY_3,
4850   EL_BD_WALL_DIAMOND,
4851
4852   EL_BD_GRAVITY_SWITCH,
4853   EL_BD_PNEUMATIC_HAMMER,
4854   EL_BD_TELEPORTER,
4855   EL_BD_POT,
4856
4857   EL_BD_PLAYER,
4858   EL_BD_PLAYER_WITH_BOMB,
4859   EL_BD_PLAYER_GLUED,
4860   EL_BD_PLAYER_STIRRING,
4861 };
4862 static int *editor_hl_boulderdash_native_ptr = editor_hl_boulderdash_native;
4863 static int *editor_el_boulderdash_native_ptr = editor_el_boulderdash_native;
4864 static int num_editor_hl_boulderdash_native = ARRAY_SIZE(editor_hl_boulderdash_native);
4865 static int num_editor_el_boulderdash_native = ARRAY_SIZE(editor_el_boulderdash_native);
4866
4867 static int editor_hl_emerald_mine[] =
4868 {
4869   EL_INTERNAL_CASCADE_EM_ACTIVE,
4870   EL_CHAR('E'),
4871   EL_CHAR('M'),
4872   EL_EMPTY,
4873 };
4874
4875 static int editor_el_emerald_mine[] =
4876 {
4877   EL_SAND,
4878   EL_ROCK,
4879   EL_QUICKSAND_EMPTY,
4880   EL_QUICKSAND_FULL,
4881
4882   EL_STEELWALL,
4883   EL_WALL,
4884   EL_WALL_SLIPPERY,
4885   EL_MAGIC_WALL,
4886
4887   EL_EMERALD,
4888   EL_DIAMOND,
4889   EL_NUT,
4890   EL_BOMB,
4891
4892   EL_EM_DYNAMITE,
4893   EL_EM_DYNAMITE_ACTIVE,
4894   EL_EM_EXIT_CLOSED,
4895   EL_EM_EXIT_OPEN,
4896
4897   EL_YAMYAM_UP,
4898   EL_BUG_UP,
4899   EL_SPACESHIP_UP,
4900   EL_ROBOT,
4901
4902   EL_BUG_LEFT,
4903   EL_SPACESHIP_LEFT,
4904   EL_BUG_RIGHT,
4905   EL_SPACESHIP_RIGHT,
4906
4907   EL_ROBOT_WHEEL,
4908   EL_BUG_DOWN,
4909   EL_SPACESHIP_DOWN,
4910   EL_INVISIBLE_WALL,
4911
4912   EL_ACID_POOL_TOPLEFT,
4913   EL_ACID,
4914   EL_ACID_POOL_TOPRIGHT,
4915   EL_AMOEBA_DROP,
4916
4917   EL_ACID_POOL_BOTTOMLEFT,
4918   EL_ACID_POOL_BOTTOM,
4919   EL_ACID_POOL_BOTTOMRIGHT,
4920   EL_AMOEBA_WET,
4921
4922   EL_EM_KEY_1,
4923   EL_EM_KEY_2,
4924   EL_EM_KEY_3,
4925   EL_EM_KEY_4,
4926
4927   EL_EM_GATE_1,
4928   EL_EM_GATE_2,
4929   EL_EM_GATE_3,
4930   EL_EM_GATE_4,
4931
4932   EL_EM_GATE_1_GRAY,
4933   EL_EM_GATE_2_GRAY,
4934   EL_EM_GATE_3_GRAY,
4935   EL_EM_GATE_4_GRAY,
4936 };
4937 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
4938 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
4939 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
4940 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
4941
4942 static int editor_hl_emerald_mine_club[] =
4943 {
4944   EL_INTERNAL_CASCADE_EMC_ACTIVE,
4945   EL_CHAR('E'),
4946   EL_CHAR('M'),
4947   EL_CHAR('C'),
4948 };
4949
4950 static int editor_el_emerald_mine_club[] =
4951 {
4952   EL_EMC_KEY_5,
4953   EL_EMC_KEY_6,
4954   EL_EMC_KEY_7,
4955   EL_EMC_KEY_8,
4956
4957   EL_EMC_GATE_5,
4958   EL_EMC_GATE_6,
4959   EL_EMC_GATE_7,
4960   EL_EMC_GATE_8,
4961
4962   EL_EMC_GATE_5_GRAY,
4963   EL_EMC_GATE_6_GRAY,
4964   EL_EMC_GATE_7_GRAY,
4965   EL_EMC_GATE_8_GRAY,
4966
4967   EL_EMC_STEELWALL_1,
4968   EL_EMC_STEELWALL_2,
4969   EL_EMC_STEELWALL_3,
4970   EL_EMC_STEELWALL_4,
4971
4972   EL_EMC_WALL_13,
4973   EL_EMC_WALL_14,
4974   EL_EMC_WALL_15,
4975   EL_EMC_WALL_16,
4976
4977   EL_EMC_WALL_SLIPPERY_1,
4978   EL_EMC_WALL_SLIPPERY_2,
4979   EL_EMC_WALL_SLIPPERY_3,
4980   EL_EMC_WALL_SLIPPERY_4,
4981
4982   EL_EMC_WALL_1,
4983   EL_EMC_WALL_2,
4984   EL_EMC_WALL_3,
4985   EL_EMC_WALL_4,
4986
4987   EL_EMC_WALL_5,
4988   EL_EMC_WALL_6,
4989   EL_EMC_WALL_7,
4990   EL_EMC_WALL_8,
4991
4992   EL_EMC_WALL_9,
4993   EL_EMC_WALL_10,
4994   EL_EMC_WALL_11,
4995   EL_EMC_WALL_12,
4996
4997   EL_EMC_GRASS,
4998   EL_EMC_FAKE_GRASS,
4999   EL_EMC_PLANT,
5000   EL_EMC_DRIPPER,
5001
5002   EL_EMC_MAGIC_BALL,
5003   EL_EMC_MAGIC_BALL_SWITCH,
5004   EL_EMC_LENSES,
5005   EL_EMC_MAGNIFIER,
5006
5007   EL_SPRING_LEFT,
5008   EL_SPRING,
5009   EL_SPRING_RIGHT,
5010   EL_EMC_SPRING_BUMPER,
5011
5012   EL_BALLOON,
5013   EL_YAMYAM_UP,
5014   EL_BALLOON_SWITCH_UP,
5015   EL_BALLOON_SWITCH_ANY,
5016
5017   EL_YAMYAM_LEFT,
5018   EL_BALLOON_SWITCH_LEFT,
5019   EL_YAMYAM_RIGHT,
5020   EL_BALLOON_SWITCH_RIGHT,
5021
5022   EL_EMC_ANDROID,
5023   EL_YAMYAM_DOWN,
5024   EL_BALLOON_SWITCH_DOWN,
5025   EL_BALLOON_SWITCH_NONE,
5026 };
5027 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
5028 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
5029 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
5030 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
5031
5032 static int editor_hl_rnd[] =
5033 {
5034   EL_INTERNAL_CASCADE_RND_ACTIVE,
5035   EL_CHAR('R'),
5036   EL_CHAR('N'),
5037   EL_CHAR('D'),
5038 };
5039
5040 static int editor_el_rnd[] =
5041 {
5042   EL_DYNAMITE,                  // RND
5043   EL_DYNAMITE_ACTIVE,           // RND
5044   EL_EMPTY,
5045   EL_EMPTY,
5046
5047   EL_KEY_1,
5048   EL_KEY_2,
5049   EL_KEY_3,
5050   EL_KEY_4,
5051
5052   EL_GATE_1,
5053   EL_GATE_2,
5054   EL_GATE_3,
5055   EL_GATE_4,
5056
5057   EL_GATE_1_GRAY,
5058   EL_GATE_2_GRAY,
5059   EL_GATE_3_GRAY,
5060   EL_GATE_4_GRAY,
5061
5062   EL_ARROW_LEFT,
5063   EL_ARROW_RIGHT,
5064   EL_ARROW_UP,
5065   EL_ARROW_DOWN,
5066
5067   EL_AMOEBA_DEAD,
5068   EL_AMOEBA_DRY,
5069   EL_AMOEBA_FULL,
5070   EL_GAME_OF_LIFE,
5071
5072   EL_EMERALD_YELLOW,
5073   EL_EMERALD_RED,
5074   EL_EMERALD_PURPLE,
5075   EL_BIOMAZE,
5076
5077   EL_WALL_EMERALD_YELLOW,
5078   EL_WALL_EMERALD_RED,
5079   EL_WALL_EMERALD_PURPLE,
5080   EL_WALL_BD_DIAMOND,
5081
5082   EL_SPEED_PILL,
5083   EL_PACMAN_UP,
5084   EL_TIME_ORB_FULL,
5085   EL_TIME_ORB_EMPTY,
5086
5087   EL_PACMAN_LEFT,
5088   EL_DARK_YAMYAM,
5089   EL_PACMAN_RIGHT,
5090   EL_YAMYAM,                    // RND
5091
5092   EL_BLACK_ORB,
5093   EL_PACMAN_DOWN,
5094   EL_LAMP,
5095   EL_LAMP_ACTIVE,
5096
5097   EL_DYNABOMB_INCREASE_NUMBER,
5098   EL_DYNABOMB_INCREASE_SIZE,
5099   EL_DYNABOMB_INCREASE_POWER,
5100   EL_STONEBLOCK,
5101
5102   EL_MOLE,
5103   EL_PENGUIN,
5104   EL_PIG,
5105   EL_DRAGON,
5106
5107   EL_BUG,
5108   EL_MOLE_UP,
5109   EL_BD_BUTTERFLY,
5110   EL_BD_FIREFLY,
5111
5112   EL_MOLE_LEFT,
5113   EL_SATELLITE,
5114   EL_MOLE_RIGHT,
5115   EL_PACMAN,
5116
5117   EL_SPACESHIP,
5118   EL_MOLE_DOWN,
5119   EL_INVISIBLE_STEELWALL,
5120   EL_INVISIBLE_WALL,
5121
5122   EL_EXPANDABLE_WALL,
5123   EL_EXPANDABLE_WALL_HORIZONTAL,
5124   EL_EXPANDABLE_WALL_VERTICAL,
5125   EL_EXPANDABLE_WALL_ANY,
5126 };
5127 static int *editor_hl_rnd_ptr = editor_hl_rnd;
5128 static int *editor_el_rnd_ptr = editor_el_rnd;
5129 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
5130 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
5131
5132 static int editor_hl_sokoban[] =
5133 {
5134   EL_INTERNAL_CASCADE_SB_ACTIVE,
5135   EL_CHAR('S'),
5136   EL_CHAR('B'),
5137   EL_EMPTY,
5138 };
5139
5140 static int editor_el_sokoban[] =
5141 {
5142   EL_SOKOBAN_OBJECT,
5143   EL_SOKOBAN_FIELD_EMPTY,
5144   EL_SOKOBAN_FIELD_FULL,
5145   EL_SOKOBAN_FIELD_PLAYER,
5146 };
5147 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
5148 static int *editor_el_sokoban_ptr = editor_el_sokoban;
5149 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
5150 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
5151
5152 static int editor_hl_supaplex[] =
5153 {
5154   EL_INTERNAL_CASCADE_SP_ACTIVE,
5155   EL_CHAR('S'),
5156   EL_CHAR('P'),
5157   EL_EMPTY,
5158 };
5159
5160 static int editor_el_supaplex[] =
5161 {
5162   EL_SP_MURPHY,
5163   EL_EMPTY,
5164   EL_SP_BASE,
5165   EL_SP_BUGGY_BASE,
5166
5167   EL_SP_INFOTRON,
5168   EL_SP_ZONK,
5169   EL_SP_SNIKSNAK,
5170   EL_SP_ELECTRON,
5171
5172   EL_SP_DISK_RED,
5173   EL_SP_DISK_ORANGE,
5174   EL_SP_DISK_YELLOW,
5175   EL_SP_TERMINAL,
5176
5177   EL_SP_EXIT_CLOSED,
5178   EL_SP_PORT_HORIZONTAL,
5179   EL_SP_PORT_VERTICAL,
5180   EL_SP_PORT_ANY,
5181
5182   EL_SP_PORT_LEFT,
5183   EL_SP_PORT_RIGHT,
5184   EL_SP_PORT_UP,
5185   EL_SP_PORT_DOWN,
5186
5187   EL_SP_GRAVITY_PORT_LEFT,
5188   EL_SP_GRAVITY_PORT_RIGHT,
5189   EL_SP_GRAVITY_PORT_UP,
5190   EL_SP_GRAVITY_PORT_DOWN,
5191
5192   EL_SP_GRAVITY_ON_PORT_LEFT,
5193   EL_SP_GRAVITY_ON_PORT_RIGHT,
5194   EL_SP_GRAVITY_ON_PORT_UP,
5195   EL_SP_GRAVITY_ON_PORT_DOWN,
5196
5197   EL_SP_GRAVITY_OFF_PORT_LEFT,
5198   EL_SP_GRAVITY_OFF_PORT_RIGHT,
5199   EL_SP_GRAVITY_OFF_PORT_UP,
5200   EL_SP_GRAVITY_OFF_PORT_DOWN,
5201
5202   EL_SP_HARDWARE_GRAY,
5203   EL_SP_HARDWARE_GREEN,
5204   EL_SP_HARDWARE_BLUE,
5205   EL_SP_HARDWARE_RED,
5206
5207   EL_SP_HARDWARE_BASE_1,
5208   EL_SP_HARDWARE_BASE_2,
5209   EL_SP_HARDWARE_BASE_3,
5210   EL_SP_HARDWARE_BASE_4,
5211
5212   EL_SP_HARDWARE_BASE_5,
5213   EL_SP_HARDWARE_BASE_6,
5214   EL_SP_HARDWARE_YELLOW,
5215   EL_SP_CHIP_TOP,
5216
5217   EL_SP_CHIP_SINGLE,
5218   EL_SP_CHIP_LEFT,
5219   EL_SP_CHIP_RIGHT,
5220   EL_SP_CHIP_BOTTOM,
5221 };
5222 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
5223 static int *editor_el_supaplex_ptr = editor_el_supaplex;
5224 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
5225 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
5226
5227 static int editor_hl_diamond_caves[] =
5228 {
5229   EL_INTERNAL_CASCADE_DC_ACTIVE,
5230   EL_CHAR('D'),
5231   EL_CHAR('C'),
5232   EL_CHAR('2'),
5233 };
5234
5235 static int editor_el_diamond_caves[] =
5236 {
5237   EL_EM_STEEL_EXIT_CLOSED,      // DC2
5238   EL_EM_STEEL_EXIT_OPEN,        // DC2
5239   EL_WALL_EMERALD,              // DC2
5240   EL_WALL_DIAMOND,              // DC2
5241
5242   EL_PEARL,
5243   EL_CRYSTAL,
5244   EL_WALL_PEARL,
5245   EL_WALL_CRYSTAL,
5246
5247   EL_CONVEYOR_BELT_1_LEFT,
5248   EL_CONVEYOR_BELT_1_MIDDLE,
5249   EL_CONVEYOR_BELT_1_RIGHT,
5250   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
5251
5252   EL_CONVEYOR_BELT_2_LEFT,
5253   EL_CONVEYOR_BELT_2_MIDDLE,
5254   EL_CONVEYOR_BELT_2_RIGHT,
5255   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
5256
5257   EL_CONVEYOR_BELT_3_LEFT,
5258   EL_CONVEYOR_BELT_3_MIDDLE,
5259   EL_CONVEYOR_BELT_3_RIGHT,
5260   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
5261
5262   EL_CONVEYOR_BELT_4_LEFT,
5263   EL_CONVEYOR_BELT_4_MIDDLE,
5264   EL_CONVEYOR_BELT_4_RIGHT,
5265   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
5266
5267   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
5268   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
5269   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
5270   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
5271
5272   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
5273   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
5274   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
5275   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
5276
5277   EL_TIMEGATE_CLOSED,
5278   EL_TIMEGATE_OPEN,
5279   EL_TIMEGATE_SWITCH,
5280   EL_DC_TIMEGATE_SWITCH,
5281
5282   EL_SWITCHGATE_CLOSED,
5283   EL_SWITCHGATE_OPEN,
5284   EL_SWITCHGATE_SWITCH_UP,
5285   EL_SWITCHGATE_SWITCH_DOWN,
5286
5287   EL_LIGHT_SWITCH,
5288   EL_LIGHT_SWITCH_ACTIVE,
5289   EL_DC_SWITCHGATE_SWITCH_UP,
5290   EL_DC_SWITCHGATE_SWITCH_DOWN,
5291
5292   EL_STEEL_EXIT_CLOSED,
5293   EL_STEEL_EXIT_OPEN,
5294   EL_STEELWALL_SLIPPERY,
5295   EL_INVISIBLE_SAND,
5296
5297   EL_QUICKSAND_FAST_EMPTY,
5298   EL_QUICKSAND_FAST_FULL,
5299   EL_LANDMINE,
5300   EL_DC_LANDMINE,
5301
5302   EL_SHIELD_NORMAL,
5303   EL_SHIELD_DEADLY,
5304   EL_EXTRA_TIME,
5305   EL_DC_MAGIC_WALL,
5306
5307   EL_ENVELOPE_1,
5308   EL_ENVELOPE_2,
5309   EL_ENVELOPE_3,
5310   EL_ENVELOPE_4,
5311
5312   EL_SIGN_RADIOACTIVITY,
5313   EL_SIGN_WHEELCHAIR,
5314   EL_SIGN_PARKING,
5315   EL_SIGN_NO_ENTRY,
5316
5317   EL_SIGN_GIVE_WAY,
5318   EL_SIGN_ENTRY_FORBIDDEN,
5319   EL_SIGN_EMERGENCY_EXIT,
5320   EL_SIGN_YIN_YANG,
5321
5322 #if 0
5323   EL_SIGN_SPERMS,
5324   EL_SIGN_BULLET,
5325   EL_SIGN_HEART,
5326   EL_SIGN_CROSS,
5327
5328   EL_SIGN_FRANKIE,
5329   EL_EMPTY,
5330   EL_EMPTY,
5331   EL_EMPTY,
5332
5333   EL_SPERMS,
5334   EL_BULLET,
5335   EL_HEART,
5336   EL_CROSS,
5337
5338   EL_FRANKIE,
5339   EL_EMPTY,
5340   EL_EMPTY,
5341   EL_EMPTY,
5342 #endif
5343
5344   EL_DC_STEELWALL_2_SINGLE,
5345   EL_DC_STEELWALL_2_TOP,
5346   EL_SIGN_EXCLAMATION,
5347   EL_SIGN_STOP,
5348
5349   EL_DC_STEELWALL_2_LEFT,
5350   EL_DC_STEELWALL_2_MIDDLE,
5351   EL_DC_STEELWALL_2_HORIZONTAL,
5352   EL_DC_STEELWALL_2_RIGHT,
5353
5354   EL_DC_STEELWALL_1_TOPLEFT,
5355   EL_DC_STEELWALL_2_VERTICAL,
5356   EL_DC_STEELWALL_1_TOPRIGHT,
5357   EL_DC_GATE_WHITE,
5358
5359   EL_DC_STEELWALL_1_VERTICAL,
5360   EL_DC_STEELWALL_2_BOTTOM,
5361   EL_DC_KEY_WHITE,
5362   EL_DC_GATE_WHITE_GRAY,
5363
5364   EL_DC_STEELWALL_1_BOTTOMLEFT,
5365   EL_DC_STEELWALL_1_HORIZONTAL,
5366   EL_DC_STEELWALL_1_BOTTOMRIGHT,
5367   EL_DC_GATE_FAKE_GRAY,
5368
5369   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
5370   EL_DC_STEELWALL_1_BOTTOM,
5371   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
5372   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
5373
5374   EL_DC_STEELWALL_1_RIGHT,
5375   EL_EMPTY,
5376   EL_DC_STEELWALL_1_LEFT,
5377   EL_EXPANDABLE_STEELWALL_VERTICAL,
5378
5379   EL_DC_STEELWALL_1_TOPRIGHT_2,
5380   EL_DC_STEELWALL_1_TOP,
5381   EL_DC_STEELWALL_1_TOPLEFT_2,
5382   EL_EXPANDABLE_STEELWALL_ANY,
5383 };
5384 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
5385 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
5386 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
5387 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
5388
5389 static int editor_hl_dx_boulderdash[] =
5390 {
5391   EL_INTERNAL_CASCADE_DX_ACTIVE,
5392   EL_CHAR('D'),
5393   EL_CHAR('X'),
5394   EL_EMPTY,
5395 };
5396
5397 static int editor_el_dx_boulderdash[] =
5398 {
5399   EL_EMPTY,
5400   EL_TUBE_RIGHT_DOWN,
5401   EL_TUBE_HORIZONTAL_DOWN,
5402   EL_TUBE_LEFT_DOWN,
5403
5404   EL_TUBE_HORIZONTAL,
5405   EL_TUBE_VERTICAL_RIGHT,
5406   EL_TUBE_ANY,
5407   EL_TUBE_VERTICAL_LEFT,
5408
5409   EL_TUBE_VERTICAL,
5410   EL_TUBE_RIGHT_UP,
5411   EL_TUBE_HORIZONTAL_UP,
5412   EL_TUBE_LEFT_UP,
5413
5414   EL_TRAP,
5415   EL_DX_SUPABOMB,
5416   EL_EMPTY,
5417   EL_EMPTY
5418 };
5419 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
5420 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
5421 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
5422 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
5423
5424 static int editor_hl_mirror_magic[] =
5425 {
5426   EL_INTERNAL_CASCADE_MM_ACTIVE,
5427   EL_CHAR('M'),
5428   EL_CHAR('M'),
5429   EL_EMPTY,
5430 };
5431
5432 static int editor_el_mirror_magic[] =
5433 {
5434   EL_MM_MCDUFFIN_RIGHT,
5435   EL_MM_MCDUFFIN_UP,
5436   EL_MM_MCDUFFIN_LEFT,
5437   EL_MM_MCDUFFIN_DOWN,
5438
5439   EL_MM_MIRROR_START,
5440   EL_MM_MIRROR_FIXED_START,
5441   EL_MM_POLARIZER_START,
5442   EL_MM_POLARIZER_CROSS_START,
5443
5444   EL_MM_TELEPORTER_RED_START,
5445   EL_MM_TELEPORTER_YELLOW_START,
5446   EL_MM_TELEPORTER_GREEN_START,
5447   EL_MM_TELEPORTER_BLUE_START,
5448
5449   EL_MM_PRISM,
5450   EL_MM_FUSE_ACTIVE,
5451   EL_MM_PACMAN_RIGHT,
5452   EL_MM_EXIT_CLOSED,
5453
5454   EL_MM_KETTLE,
5455   EL_MM_BOMB,
5456   EL_MM_KEY,
5457   EL_MM_FUEL_FULL,
5458
5459   EL_MM_LIGHTBULB,
5460   EL_MM_LIGHTBULB_ACTIVE,
5461   EL_MM_GRAY_BALL,
5462   EL_MM_LIGHTBALL,
5463
5464   EL_MM_STEEL_WALL,
5465   EL_MM_WOODEN_WALL,
5466   EL_MM_ICE_WALL,
5467   EL_MM_AMOEBA_WALL,
5468
5469   EL_MM_STEEL_LOCK,
5470   EL_MM_WOODEN_LOCK,
5471   EL_MM_STEEL_BLOCK,
5472   EL_MM_WOODEN_BLOCK,
5473
5474   EL_MM_STEEL_GRID_FIXED_1,
5475   EL_MM_STEEL_GRID_FIXED_2,
5476   EL_MM_STEEL_GRID_FIXED_3,
5477   EL_MM_STEEL_GRID_FIXED_4,
5478
5479   EL_MM_WOODEN_GRID_FIXED_1,
5480   EL_MM_WOODEN_GRID_FIXED_2,
5481   EL_MM_WOODEN_GRID_FIXED_3,
5482   EL_MM_WOODEN_GRID_FIXED_4,
5483
5484   EL_MM_ENVELOPE_1,
5485   EL_MM_ENVELOPE_2,
5486   EL_MM_ENVELOPE_3,
5487   EL_MM_ENVELOPE_4
5488 };
5489 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
5490 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
5491 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
5492 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
5493
5494 static int editor_hl_deflektor[] =
5495 {
5496   EL_INTERNAL_CASCADE_DF_ACTIVE,
5497   EL_CHAR('D'),
5498   EL_CHAR('F'),
5499   EL_EMPTY,
5500 };
5501
5502 static int editor_el_deflektor[] =
5503 {
5504   EL_DF_LASER_RIGHT,
5505   EL_DF_LASER_UP,
5506   EL_DF_LASER_LEFT,
5507   EL_DF_LASER_DOWN,
5508
5509   EL_DF_RECEIVER_RIGHT,
5510   EL_DF_RECEIVER_UP,
5511   EL_DF_RECEIVER_LEFT,
5512   EL_DF_RECEIVER_DOWN,
5513
5514   EL_DF_MIRROR_START,
5515   EL_DF_MIRROR_ROTATING_START,
5516   EL_DF_MIRROR_FIXED_START,
5517   EL_DF_CELL,
5518
5519   EL_DF_FIBRE_OPTIC_RED_1,
5520   EL_DF_FIBRE_OPTIC_YELLOW_1,
5521   EL_DF_FIBRE_OPTIC_GREEN_1,
5522   EL_DF_FIBRE_OPTIC_BLUE_1,
5523
5524   EL_DF_STEEL_GRID_FIXED_START,
5525   EL_DF_STEEL_GRID_ROTATING_START,
5526   EL_DF_WOODEN_GRID_FIXED_START,
5527   EL_DF_WOODEN_GRID_ROTATING_START,
5528
5529   EL_DF_STEEL_WALL,
5530   EL_DF_WOODEN_WALL,
5531   EL_DF_REFRACTOR,
5532   EL_DF_MINE,
5533
5534   EL_DF_SLOPE_1,
5535   EL_DF_SLOPE_2,
5536   EL_DF_SLOPE_3,
5537   EL_DF_SLOPE_4
5538 };
5539 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
5540 static int *editor_el_deflektor_ptr = editor_el_deflektor;
5541 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
5542 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
5543
5544 static int editor_hl_chars[] =
5545 {
5546   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
5547   EL_CHAR('T'),
5548   EL_CHAR('X'),
5549   EL_CHAR('T'),
5550 };
5551
5552 static int editor_el_chars[] =
5553 {
5554   EL_CHAR(' '),
5555   EL_CHAR('!'),
5556   EL_CHAR('"'),
5557   EL_CHAR('#'),
5558
5559   EL_CHAR('$'),
5560   EL_CHAR('%'),
5561   EL_CHAR('&'),
5562   EL_CHAR('\''),
5563
5564   EL_CHAR('('),
5565   EL_CHAR(')'),
5566   EL_CHAR('*'),
5567   EL_CHAR('+'),
5568
5569   EL_CHAR(','),
5570   EL_CHAR('-'),
5571   EL_CHAR('.'),
5572   EL_CHAR('/'),
5573
5574   EL_CHAR('0'),
5575   EL_CHAR('1'),
5576   EL_CHAR('2'),
5577   EL_CHAR('3'),
5578
5579   EL_CHAR('4'),
5580   EL_CHAR('5'),
5581   EL_CHAR('6'),
5582   EL_CHAR('7'),
5583
5584   EL_CHAR('8'),
5585   EL_CHAR('9'),
5586   EL_CHAR(':'),
5587   EL_CHAR(';'),
5588
5589   EL_CHAR('<'),
5590   EL_CHAR('='),
5591   EL_CHAR('>'),
5592   EL_CHAR('?'),
5593
5594   EL_CHAR('@'),
5595   EL_CHAR('A'),
5596   EL_CHAR('B'),
5597   EL_CHAR('C'),
5598
5599   EL_CHAR('D'),
5600   EL_CHAR('E'),
5601   EL_CHAR('F'),
5602   EL_CHAR('G'),
5603
5604   EL_CHAR('H'),
5605   EL_CHAR('I'),
5606   EL_CHAR('J'),
5607   EL_CHAR('K'),
5608
5609   EL_CHAR('L'),
5610   EL_CHAR('M'),
5611   EL_CHAR('N'),
5612   EL_CHAR('O'),
5613
5614   EL_CHAR('P'),
5615   EL_CHAR('Q'),
5616   EL_CHAR('R'),
5617   EL_CHAR('S'),
5618
5619   EL_CHAR('T'),
5620   EL_CHAR('U'),
5621   EL_CHAR('V'),
5622   EL_CHAR('W'),
5623
5624   EL_CHAR('X'),
5625   EL_CHAR('Y'),
5626   EL_CHAR('Z'),
5627   EL_CHAR('['),
5628
5629   EL_CHAR('\\'),
5630   EL_CHAR(']'),
5631   EL_CHAR('^'),
5632   EL_CHAR('_'),
5633
5634   EL_CHAR(CHAR_BYTE_COPYRIGHT),
5635   EL_CHAR(CHAR_BYTE_UMLAUT_A),
5636   EL_CHAR(CHAR_BYTE_UMLAUT_O),
5637   EL_CHAR(CHAR_BYTE_UMLAUT_U),
5638
5639   EL_CHAR(CHAR_BYTE_DEGREE),
5640   EL_CHAR(CHAR_BYTE_REGISTERED),
5641   EL_CHAR(FONT_ASCII_CURSOR),
5642   EL_CHAR(FONT_ASCII_BUTTON),
5643
5644   EL_CHAR(FONT_ASCII_UP),
5645   EL_CHAR(FONT_ASCII_DOWN),
5646   EL_CHAR(' '),
5647   EL_CHAR(' ')
5648 };
5649 static int *editor_hl_chars_ptr = editor_hl_chars;
5650 static int *editor_el_chars_ptr = editor_el_chars;
5651 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
5652 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
5653
5654 static int editor_hl_steel_chars[] =
5655 {
5656   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
5657   EL_STEEL_CHAR('T'),
5658   EL_STEEL_CHAR('X'),
5659   EL_STEEL_CHAR('T'),
5660 };
5661
5662 static int editor_el_steel_chars[] =
5663 {
5664   EL_STEEL_CHAR(' '),
5665   EL_STEEL_CHAR('!'),
5666   EL_STEEL_CHAR('"'),
5667   EL_STEEL_CHAR('#'),
5668
5669   EL_STEEL_CHAR('$'),
5670   EL_STEEL_CHAR('%'),
5671   EL_STEEL_CHAR('&'),
5672   EL_STEEL_CHAR('\''),
5673
5674   EL_STEEL_CHAR('('),
5675   EL_STEEL_CHAR(')'),
5676   EL_STEEL_CHAR('*'),
5677   EL_STEEL_CHAR('+'),
5678
5679   EL_STEEL_CHAR(','),
5680   EL_STEEL_CHAR('-'),
5681   EL_STEEL_CHAR('.'),
5682   EL_STEEL_CHAR('/'),
5683
5684   EL_STEEL_CHAR('0'),
5685   EL_STEEL_CHAR('1'),
5686   EL_STEEL_CHAR('2'),
5687   EL_STEEL_CHAR('3'),
5688
5689   EL_STEEL_CHAR('4'),
5690   EL_STEEL_CHAR('5'),
5691   EL_STEEL_CHAR('6'),
5692   EL_STEEL_CHAR('7'),
5693
5694   EL_STEEL_CHAR('8'),
5695   EL_STEEL_CHAR('9'),
5696   EL_STEEL_CHAR(':'),
5697   EL_STEEL_CHAR(';'),
5698
5699   EL_STEEL_CHAR('<'),
5700   EL_STEEL_CHAR('='),
5701   EL_STEEL_CHAR('>'),
5702   EL_STEEL_CHAR('?'),
5703
5704   EL_STEEL_CHAR('@'),
5705   EL_STEEL_CHAR('A'),
5706   EL_STEEL_CHAR('B'),
5707   EL_STEEL_CHAR('C'),
5708
5709   EL_STEEL_CHAR('D'),
5710   EL_STEEL_CHAR('E'),
5711   EL_STEEL_CHAR('F'),
5712   EL_STEEL_CHAR('G'),
5713
5714   EL_STEEL_CHAR('H'),
5715   EL_STEEL_CHAR('I'),
5716   EL_STEEL_CHAR('J'),
5717   EL_STEEL_CHAR('K'),
5718
5719   EL_STEEL_CHAR('L'),
5720   EL_STEEL_CHAR('M'),
5721   EL_STEEL_CHAR('N'),
5722   EL_STEEL_CHAR('O'),
5723
5724   EL_STEEL_CHAR('P'),
5725   EL_STEEL_CHAR('Q'),
5726   EL_STEEL_CHAR('R'),
5727   EL_STEEL_CHAR('S'),
5728
5729   EL_STEEL_CHAR('T'),
5730   EL_STEEL_CHAR('U'),
5731   EL_STEEL_CHAR('V'),
5732   EL_STEEL_CHAR('W'),
5733
5734   EL_STEEL_CHAR('X'),
5735   EL_STEEL_CHAR('Y'),
5736   EL_STEEL_CHAR('Z'),
5737   EL_STEEL_CHAR('['),
5738
5739   EL_STEEL_CHAR('\\'),
5740   EL_STEEL_CHAR(']'),
5741   EL_STEEL_CHAR('^'),
5742   EL_STEEL_CHAR('_'),
5743
5744   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
5745   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
5746   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
5747   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
5748
5749   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
5750   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
5751   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
5752   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
5753
5754   EL_STEEL_CHAR(FONT_ASCII_UP),
5755   EL_STEEL_CHAR(FONT_ASCII_DOWN),
5756   EL_STEEL_CHAR(' '),
5757   EL_STEEL_CHAR(' ')
5758 };
5759 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
5760 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
5761 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
5762 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
5763
5764 static int editor_hl_custom[] =
5765 {
5766   EL_INTERNAL_CASCADE_CE_ACTIVE,
5767   EL_CHAR('C'),
5768   EL_CHAR('E'),
5769   EL_EMPTY,
5770 };
5771
5772 static int editor_el_custom[] =
5773 {
5774   EL_CUSTOM_START + 0,
5775   EL_CUSTOM_START + 1,
5776   EL_CUSTOM_START + 2,
5777   EL_CUSTOM_START + 3,
5778
5779   EL_CUSTOM_START + 4,
5780   EL_CUSTOM_START + 5,
5781   EL_CUSTOM_START + 6,
5782   EL_CUSTOM_START + 7,
5783
5784   EL_CUSTOM_START + 8,
5785   EL_CUSTOM_START + 9,
5786   EL_CUSTOM_START + 10,
5787   EL_CUSTOM_START + 11,
5788
5789   EL_CUSTOM_START + 12,
5790   EL_CUSTOM_START + 13,
5791   EL_CUSTOM_START + 14,
5792   EL_CUSTOM_START + 15,
5793
5794   EL_CUSTOM_START + 16,
5795   EL_CUSTOM_START + 17,
5796   EL_CUSTOM_START + 18,
5797   EL_CUSTOM_START + 19,
5798
5799   EL_CUSTOM_START + 20,
5800   EL_CUSTOM_START + 21,
5801   EL_CUSTOM_START + 22,
5802   EL_CUSTOM_START + 23,
5803
5804   EL_CUSTOM_START + 24,
5805   EL_CUSTOM_START + 25,
5806   EL_CUSTOM_START + 26,
5807   EL_CUSTOM_START + 27,
5808
5809   EL_CUSTOM_START + 28,
5810   EL_CUSTOM_START + 29,
5811   EL_CUSTOM_START + 30,
5812   EL_CUSTOM_START + 31,
5813
5814   EL_CUSTOM_START + 32,
5815   EL_CUSTOM_START + 33,
5816   EL_CUSTOM_START + 34,
5817   EL_CUSTOM_START + 35,
5818
5819   EL_CUSTOM_START + 36,
5820   EL_CUSTOM_START + 37,
5821   EL_CUSTOM_START + 38,
5822   EL_CUSTOM_START + 39,
5823
5824   EL_CUSTOM_START + 40,
5825   EL_CUSTOM_START + 41,
5826   EL_CUSTOM_START + 42,
5827   EL_CUSTOM_START + 43,
5828
5829   EL_CUSTOM_START + 44,
5830   EL_CUSTOM_START + 45,
5831   EL_CUSTOM_START + 46,
5832   EL_CUSTOM_START + 47,
5833
5834   EL_CUSTOM_START + 48,
5835   EL_CUSTOM_START + 49,
5836   EL_CUSTOM_START + 50,
5837   EL_CUSTOM_START + 51,
5838
5839   EL_CUSTOM_START + 52,
5840   EL_CUSTOM_START + 53,
5841   EL_CUSTOM_START + 54,
5842   EL_CUSTOM_START + 55,
5843
5844   EL_CUSTOM_START + 56,
5845   EL_CUSTOM_START + 57,
5846   EL_CUSTOM_START + 58,
5847   EL_CUSTOM_START + 59,
5848
5849   EL_CUSTOM_START + 60,
5850   EL_CUSTOM_START + 61,
5851   EL_CUSTOM_START + 62,
5852   EL_CUSTOM_START + 63,
5853
5854   EL_CUSTOM_START + 64,
5855   EL_CUSTOM_START + 65,
5856   EL_CUSTOM_START + 66,
5857   EL_CUSTOM_START + 67,
5858
5859   EL_CUSTOM_START + 68,
5860   EL_CUSTOM_START + 69,
5861   EL_CUSTOM_START + 70,
5862   EL_CUSTOM_START + 71,
5863
5864   EL_CUSTOM_START + 72,
5865   EL_CUSTOM_START + 73,
5866   EL_CUSTOM_START + 74,
5867   EL_CUSTOM_START + 75,
5868
5869   EL_CUSTOM_START + 76,
5870   EL_CUSTOM_START + 77,
5871   EL_CUSTOM_START + 78,
5872   EL_CUSTOM_START + 79,
5873
5874   EL_CUSTOM_START + 80,
5875   EL_CUSTOM_START + 81,
5876   EL_CUSTOM_START + 82,
5877   EL_CUSTOM_START + 83,
5878
5879   EL_CUSTOM_START + 84,
5880   EL_CUSTOM_START + 85,
5881   EL_CUSTOM_START + 86,
5882   EL_CUSTOM_START + 87,
5883
5884   EL_CUSTOM_START + 88,
5885   EL_CUSTOM_START + 89,
5886   EL_CUSTOM_START + 90,
5887   EL_CUSTOM_START + 91,
5888
5889   EL_CUSTOM_START + 92,
5890   EL_CUSTOM_START + 93,
5891   EL_CUSTOM_START + 94,
5892   EL_CUSTOM_START + 95,
5893
5894   EL_CUSTOM_START + 96,
5895   EL_CUSTOM_START + 97,
5896   EL_CUSTOM_START + 98,
5897   EL_CUSTOM_START + 99,
5898
5899   EL_CUSTOM_START + 100,
5900   EL_CUSTOM_START + 101,
5901   EL_CUSTOM_START + 102,
5902   EL_CUSTOM_START + 103,
5903
5904   EL_CUSTOM_START + 104,
5905   EL_CUSTOM_START + 105,
5906   EL_CUSTOM_START + 106,
5907   EL_CUSTOM_START + 107,
5908
5909   EL_CUSTOM_START + 108,
5910   EL_CUSTOM_START + 109,
5911   EL_CUSTOM_START + 110,
5912   EL_CUSTOM_START + 111,
5913
5914   EL_CUSTOM_START + 112,
5915   EL_CUSTOM_START + 113,
5916   EL_CUSTOM_START + 114,
5917   EL_CUSTOM_START + 115,
5918
5919   EL_CUSTOM_START + 116,
5920   EL_CUSTOM_START + 117,
5921   EL_CUSTOM_START + 118,
5922   EL_CUSTOM_START + 119,
5923
5924   EL_CUSTOM_START + 120,
5925   EL_CUSTOM_START + 121,
5926   EL_CUSTOM_START + 122,
5927   EL_CUSTOM_START + 123,
5928
5929   EL_CUSTOM_START + 124,
5930   EL_CUSTOM_START + 125,
5931   EL_CUSTOM_START + 126,
5932   EL_CUSTOM_START + 127,
5933
5934   EL_CUSTOM_START + 128,
5935   EL_CUSTOM_START + 129,
5936   EL_CUSTOM_START + 130,
5937   EL_CUSTOM_START + 131,
5938
5939   EL_CUSTOM_START + 132,
5940   EL_CUSTOM_START + 133,
5941   EL_CUSTOM_START + 134,
5942   EL_CUSTOM_START + 135,
5943
5944   EL_CUSTOM_START + 136,
5945   EL_CUSTOM_START + 137,
5946   EL_CUSTOM_START + 138,
5947   EL_CUSTOM_START + 139,
5948
5949   EL_CUSTOM_START + 140,
5950   EL_CUSTOM_START + 141,
5951   EL_CUSTOM_START + 142,
5952   EL_CUSTOM_START + 143,
5953
5954   EL_CUSTOM_START + 144,
5955   EL_CUSTOM_START + 145,
5956   EL_CUSTOM_START + 146,
5957   EL_CUSTOM_START + 147,
5958
5959   EL_CUSTOM_START + 148,
5960   EL_CUSTOM_START + 149,
5961   EL_CUSTOM_START + 150,
5962   EL_CUSTOM_START + 151,
5963
5964   EL_CUSTOM_START + 152,
5965   EL_CUSTOM_START + 153,
5966   EL_CUSTOM_START + 154,
5967   EL_CUSTOM_START + 155,
5968
5969   EL_CUSTOM_START + 156,
5970   EL_CUSTOM_START + 157,
5971   EL_CUSTOM_START + 158,
5972   EL_CUSTOM_START + 159,
5973
5974   EL_CUSTOM_START + 160,
5975   EL_CUSTOM_START + 161,
5976   EL_CUSTOM_START + 162,
5977   EL_CUSTOM_START + 163,
5978
5979   EL_CUSTOM_START + 164,
5980   EL_CUSTOM_START + 165,
5981   EL_CUSTOM_START + 166,
5982   EL_CUSTOM_START + 167,
5983
5984   EL_CUSTOM_START + 168,
5985   EL_CUSTOM_START + 169,
5986   EL_CUSTOM_START + 170,
5987   EL_CUSTOM_START + 171,
5988
5989   EL_CUSTOM_START + 172,
5990   EL_CUSTOM_START + 173,
5991   EL_CUSTOM_START + 174,
5992   EL_CUSTOM_START + 175,
5993
5994   EL_CUSTOM_START + 176,
5995   EL_CUSTOM_START + 177,
5996   EL_CUSTOM_START + 178,
5997   EL_CUSTOM_START + 179,
5998
5999   EL_CUSTOM_START + 180,
6000   EL_CUSTOM_START + 181,
6001   EL_CUSTOM_START + 182,
6002   EL_CUSTOM_START + 183,
6003
6004   EL_CUSTOM_START + 184,
6005   EL_CUSTOM_START + 185,
6006   EL_CUSTOM_START + 186,
6007   EL_CUSTOM_START + 187,
6008
6009   EL_CUSTOM_START + 188,
6010   EL_CUSTOM_START + 189,
6011   EL_CUSTOM_START + 190,
6012   EL_CUSTOM_START + 191,
6013
6014   EL_CUSTOM_START + 192,
6015   EL_CUSTOM_START + 193,
6016   EL_CUSTOM_START + 194,
6017   EL_CUSTOM_START + 195,
6018
6019   EL_CUSTOM_START + 196,
6020   EL_CUSTOM_START + 197,
6021   EL_CUSTOM_START + 198,
6022   EL_CUSTOM_START + 199,
6023
6024   EL_CUSTOM_START + 200,
6025   EL_CUSTOM_START + 201,
6026   EL_CUSTOM_START + 202,
6027   EL_CUSTOM_START + 203,
6028
6029   EL_CUSTOM_START + 204,
6030   EL_CUSTOM_START + 205,
6031   EL_CUSTOM_START + 206,
6032   EL_CUSTOM_START + 207,
6033
6034   EL_CUSTOM_START + 208,
6035   EL_CUSTOM_START + 209,
6036   EL_CUSTOM_START + 210,
6037   EL_CUSTOM_START + 211,
6038
6039   EL_CUSTOM_START + 212,
6040   EL_CUSTOM_START + 213,
6041   EL_CUSTOM_START + 214,
6042   EL_CUSTOM_START + 215,
6043
6044   EL_CUSTOM_START + 216,
6045   EL_CUSTOM_START + 217,
6046   EL_CUSTOM_START + 218,
6047   EL_CUSTOM_START + 219,
6048
6049   EL_CUSTOM_START + 220,
6050   EL_CUSTOM_START + 221,
6051   EL_CUSTOM_START + 222,
6052   EL_CUSTOM_START + 223,
6053
6054   EL_CUSTOM_START + 224,
6055   EL_CUSTOM_START + 225,
6056   EL_CUSTOM_START + 226,
6057   EL_CUSTOM_START + 227,
6058
6059   EL_CUSTOM_START + 228,
6060   EL_CUSTOM_START + 229,
6061   EL_CUSTOM_START + 230,
6062   EL_CUSTOM_START + 231,
6063
6064   EL_CUSTOM_START + 232,
6065   EL_CUSTOM_START + 233,
6066   EL_CUSTOM_START + 234,
6067   EL_CUSTOM_START + 235,
6068
6069   EL_CUSTOM_START + 236,
6070   EL_CUSTOM_START + 237,
6071   EL_CUSTOM_START + 238,
6072   EL_CUSTOM_START + 239,
6073
6074   EL_CUSTOM_START + 240,
6075   EL_CUSTOM_START + 241,
6076   EL_CUSTOM_START + 242,
6077   EL_CUSTOM_START + 243,
6078
6079   EL_CUSTOM_START + 244,
6080   EL_CUSTOM_START + 245,
6081   EL_CUSTOM_START + 246,
6082   EL_CUSTOM_START + 247,
6083
6084   EL_CUSTOM_START + 248,
6085   EL_CUSTOM_START + 249,
6086   EL_CUSTOM_START + 250,
6087   EL_CUSTOM_START + 251,
6088
6089   EL_CUSTOM_START + 252,
6090   EL_CUSTOM_START + 253,
6091   EL_CUSTOM_START + 254,
6092   EL_CUSTOM_START + 255
6093 };
6094 static int *editor_hl_custom_ptr = editor_hl_custom;
6095 static int *editor_el_custom_ptr = editor_el_custom;
6096 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
6097 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
6098
6099 static int editor_hl_group[] =
6100 {
6101   EL_INTERNAL_CASCADE_GE_ACTIVE,
6102   EL_CHAR('G'),
6103   EL_CHAR('E'),
6104   EL_EMPTY,
6105 };
6106
6107 static int editor_el_group[] =
6108 {
6109   EL_GROUP_START + 0,
6110   EL_GROUP_START + 1,
6111   EL_GROUP_START + 2,
6112   EL_GROUP_START + 3,
6113
6114   EL_GROUP_START + 4,
6115   EL_GROUP_START + 5,
6116   EL_GROUP_START + 6,
6117   EL_GROUP_START + 7,
6118
6119   EL_GROUP_START + 8,
6120   EL_GROUP_START + 9,
6121   EL_GROUP_START + 10,
6122   EL_GROUP_START + 11,
6123
6124   EL_GROUP_START + 12,
6125   EL_GROUP_START + 13,
6126   EL_GROUP_START + 14,
6127   EL_GROUP_START + 15,
6128
6129   EL_GROUP_START + 16,
6130   EL_GROUP_START + 17,
6131   EL_GROUP_START + 18,
6132   EL_GROUP_START + 19,
6133
6134   EL_GROUP_START + 20,
6135   EL_GROUP_START + 21,
6136   EL_GROUP_START + 22,
6137   EL_GROUP_START + 23,
6138
6139   EL_GROUP_START + 24,
6140   EL_GROUP_START + 25,
6141   EL_GROUP_START + 26,
6142   EL_GROUP_START + 27,
6143
6144   EL_GROUP_START + 28,
6145   EL_GROUP_START + 29,
6146   EL_GROUP_START + 30,
6147   EL_GROUP_START + 31
6148 };
6149 static int *editor_hl_group_ptr = editor_hl_group;
6150 static int *editor_el_group_ptr = editor_el_group;
6151 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
6152 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
6153
6154 static int editor_hl_empty_space[] =
6155 {
6156   EL_INTERNAL_CASCADE_ES_ACTIVE,
6157   EL_CHAR('E'),
6158   EL_CHAR('S'),
6159   EL_EMPTY,
6160 };
6161
6162 static int editor_el_empty_space[] =
6163 {
6164   EL_EMPTY_SPACE_1,
6165   EL_EMPTY_SPACE_2,
6166   EL_EMPTY_SPACE_3,
6167   EL_EMPTY_SPACE_4,
6168
6169   EL_EMPTY_SPACE_5,
6170   EL_EMPTY_SPACE_6,
6171   EL_EMPTY_SPACE_7,
6172   EL_EMPTY_SPACE_8,
6173
6174   EL_EMPTY_SPACE_9,
6175   EL_EMPTY_SPACE_10,
6176   EL_EMPTY_SPACE_11,
6177   EL_EMPTY_SPACE_12,
6178
6179   EL_EMPTY_SPACE_13,
6180   EL_EMPTY_SPACE_14,
6181   EL_EMPTY_SPACE_15,
6182   EL_EMPTY_SPACE_16
6183 };
6184 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
6185 static int *editor_el_empty_space_ptr = editor_el_empty_space;
6186 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
6187 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
6188
6189 static int editor_hl_reference[] =
6190 {
6191   EL_INTERNAL_CASCADE_REF_ACTIVE,
6192   EL_CHAR('R'),
6193   EL_CHAR('E'),
6194   EL_CHAR('F')
6195 };
6196
6197 static int editor_el_reference[] =
6198 {
6199   EL_TRIGGER_PLAYER,
6200   EL_TRIGGER_ELEMENT,
6201   EL_TRIGGER_CE_VALUE,
6202   EL_TRIGGER_CE_SCORE,
6203
6204   EL_SELF,
6205   EL_ANY_ELEMENT,
6206   EL_CURRENT_CE_VALUE,
6207   EL_CURRENT_CE_SCORE,
6208
6209   EL_PREV_CE_8,
6210   EL_PREV_CE_7,
6211   EL_PREV_CE_6,
6212   EL_PREV_CE_5,
6213
6214   EL_PREV_CE_4,
6215   EL_PREV_CE_3,
6216   EL_PREV_CE_2,
6217   EL_PREV_CE_1,
6218
6219   EL_NEXT_CE_1,
6220   EL_NEXT_CE_2,
6221   EL_NEXT_CE_3,
6222   EL_NEXT_CE_4,
6223
6224   EL_NEXT_CE_5,
6225   EL_NEXT_CE_6,
6226   EL_NEXT_CE_7,
6227   EL_NEXT_CE_8,
6228 };
6229 static int *editor_hl_reference_ptr = editor_hl_reference;
6230 static int *editor_el_reference_ptr = editor_el_reference;
6231 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
6232 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
6233
6234 static int editor_hl_user_defined[] =
6235 {
6236   EL_INTERNAL_CASCADE_USER_ACTIVE,
6237   EL_CHAR('M'),
6238   EL_CHAR('Y'),
6239   EL_EMPTY,
6240 };
6241
6242 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
6243 static int *editor_el_user_defined_ptr = NULL;
6244 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
6245 static int num_editor_el_user_defined = 0;
6246
6247 static int editor_hl_dynamic[] =
6248 {
6249   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
6250   EL_CHAR('U'),
6251   EL_CHAR('S'),
6252   EL_CHAR('E'),
6253 };
6254
6255 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
6256 static int *editor_el_dynamic_ptr = NULL;
6257 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
6258 static int num_editor_el_dynamic = 0;
6259
6260 static int editor_hl_empty[] = { EL_EMPTY };
6261 static int *editor_el_empty = NULL;     // dynamically allocated
6262
6263 static int *editor_hl_empty_ptr = editor_hl_empty;
6264 static int *editor_el_empty_ptr = NULL;
6265 static int num_editor_hl_empty = 0;
6266 static int num_editor_el_empty = 0;     // dynamically determined, if needed
6267
6268 static boolean use_el_empty = FALSE;
6269
6270 static int *editor_elements = NULL;     // dynamically allocated
6271 static int num_editor_elements = 0;     // dynamically determined
6272
6273 static boolean setup_editor_cascade_never = FALSE;
6274
6275 static boolean setup_editor_el_players                  = TRUE;
6276 static boolean setup_editor_el_boulderdash              = TRUE;
6277 static boolean setup_editor_el_boulderdash_native       = TRUE;
6278 static boolean setup_editor_el_emerald_mine             = TRUE;
6279 static boolean setup_editor_el_emerald_mine_club        = TRUE;
6280 static boolean setup_editor_el_more                     = TRUE;
6281 static boolean setup_editor_el_sokoban                  = TRUE;
6282 static boolean setup_editor_el_supaplex                 = TRUE;
6283 static boolean setup_editor_el_diamond_caves            = TRUE;
6284 static boolean setup_editor_el_dx_boulderdash           = TRUE;
6285 static boolean setup_editor_el_mirror_magic             = TRUE;
6286 static boolean setup_editor_el_deflektor                = TRUE;
6287 static boolean setup_editor_el_chars                    = TRUE;
6288 static boolean setup_editor_el_steel_chars              = TRUE;
6289 static boolean setup_editor_el_custom                   = TRUE;
6290 static boolean setup_editor_el_user_defined             = TRUE;
6291 static boolean setup_editor_el_dynamic                  = TRUE;
6292
6293 static int editor_hl_unused[] = { EL_EMPTY };
6294 static int *editor_hl_unused_ptr = editor_hl_unused;
6295 static int num_editor_hl_unused = 0;
6296
6297 static struct
6298 {
6299   boolean *setup_value;
6300   boolean *setup_cascade_value;
6301
6302   int **headline_list;
6303   int *headline_list_size;
6304
6305   int **element_list;
6306   int *element_list_size;
6307
6308   boolean last_setup_value;
6309 }
6310 editor_elements_info[] =
6311 {
6312   {
6313     &setup_editor_el_players,
6314     &setup_editor_cascade_never,
6315     &editor_hl_unused_ptr,              &num_editor_hl_unused,
6316     &editor_el_players_ptr,             &num_editor_el_players
6317   },
6318   {
6319     &setup_editor_el_boulderdash,
6320     &setup.editor_cascade.el_bd,
6321     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
6322     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
6323   },
6324   {
6325     &setup_editor_el_boulderdash_native,
6326     &setup.editor_cascade.el_bd_native,
6327     &editor_hl_boulderdash_native_ptr,  &num_editor_hl_boulderdash_native,
6328     &editor_el_boulderdash_native_ptr,  &num_editor_el_boulderdash_native
6329   },
6330   {
6331     &setup_editor_el_emerald_mine,
6332     &setup.editor_cascade.el_em,
6333     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
6334     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
6335   },
6336   {
6337     &setup_editor_el_emerald_mine_club,
6338     &setup.editor_cascade.el_emc,
6339     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
6340     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
6341   },
6342   {
6343     &setup_editor_el_more,
6344     &setup.editor_cascade.el_rnd,
6345     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
6346     &editor_el_rnd_ptr,                 &num_editor_el_rnd
6347   },
6348   {
6349     &setup_editor_el_sokoban,
6350     &setup.editor_cascade.el_sb,
6351     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
6352     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
6353   },
6354   {
6355     &setup_editor_el_supaplex,
6356     &setup.editor_cascade.el_sp,
6357     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
6358     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
6359   },
6360   {
6361     &setup_editor_el_diamond_caves,
6362     &setup.editor_cascade.el_dc,
6363     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
6364     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
6365   },
6366   {
6367     &setup_editor_el_dx_boulderdash,
6368     &setup.editor_cascade.el_dx,
6369     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
6370     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
6371   },
6372   {
6373     &setup_editor_el_mirror_magic,
6374     &setup.editor_cascade.el_mm,
6375     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
6376     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
6377   },
6378   {
6379     &setup_editor_el_deflektor,
6380     &setup.editor_cascade.el_df,
6381     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
6382     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
6383   },
6384   {
6385     &setup_editor_el_chars,
6386     &setup.editor_cascade.el_chars,
6387     &editor_hl_chars_ptr,               &num_editor_hl_chars,
6388     &editor_el_chars_ptr,               &num_editor_el_chars
6389   },
6390   {
6391     &setup_editor_el_steel_chars,
6392     &setup.editor_cascade.el_steel_chars,
6393     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
6394     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
6395   },
6396   {
6397     &setup_editor_el_custom,
6398     &setup.editor_cascade.el_ce,
6399     &editor_hl_custom_ptr,              &num_editor_hl_custom,
6400     &editor_el_custom_ptr,              &num_editor_el_custom
6401   },
6402   {
6403     &setup_editor_el_custom,
6404     &setup.editor_cascade.el_ge,
6405     &editor_hl_group_ptr,               &num_editor_hl_group,
6406     &editor_el_group_ptr,               &num_editor_el_group
6407   },
6408   {
6409     &setup_editor_el_custom,
6410     &setup.editor_cascade.el_es,
6411     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
6412     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
6413   },
6414   {
6415     &setup_editor_el_custom,
6416     &setup.editor_cascade.el_ref,
6417     &editor_hl_reference_ptr,           &num_editor_hl_reference,
6418     &editor_el_reference_ptr,           &num_editor_el_reference
6419   },
6420   {
6421     &setup_editor_el_user_defined,
6422     &setup.editor_cascade.el_user,
6423     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
6424     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
6425   },
6426   {
6427     &setup_editor_el_dynamic,
6428     &setup.editor_cascade.el_dynamic,
6429     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
6430     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
6431   },
6432   {
6433     &use_el_empty,
6434     &use_el_empty,
6435     &editor_hl_empty_ptr,               &num_editor_hl_empty,
6436     &editor_el_empty_ptr,               &num_editor_el_empty,
6437   },
6438   {
6439     NULL,
6440     NULL,
6441     NULL,                               NULL,
6442     NULL,                               NULL
6443   }
6444 };
6445
6446 static struct XY xy_directions[] =
6447 {
6448   { -1,  0 },
6449   { +1,  0 },
6450   {  0, -1 },
6451   {  0, +1 }
6452 };
6453
6454
6455 // ----------------------------------------------------------------------------
6456 // functions
6457 // ----------------------------------------------------------------------------
6458
6459 static int getMaxInfoTextLength(void)
6460 {
6461   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
6462 }
6463
6464 static int getTextWidthForGadget(char *text)
6465 {
6466   if (text == NULL)
6467     return 0;
6468
6469   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
6470 }
6471
6472 static int getTextWidthForDrawingArea(char *text)
6473 {
6474   if (text == NULL)
6475     return 0;
6476
6477   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_BORDER_SIZE);
6478 }
6479
6480 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
6481 {
6482   return (gi->x + gi->width + getTextWidthForGadget(text));
6483 }
6484
6485 static char *getElementInfoText(int element)
6486 {
6487   char *info_text = NULL;
6488
6489   if (element < MAX_NUM_ELEMENTS)
6490   {
6491     if (strlen(element_info[element].description) > 0)
6492       info_text = element_info[element].description;
6493     else if (element_info[element].custom_description != NULL)
6494       info_text = element_info[element].custom_description;
6495     else if (element_info[element].editor_description != NULL)
6496       info_text = element_info[element].editor_description;
6497   }
6498
6499   if (info_text == NULL)
6500     info_text = INFOTEXT_UNKNOWN_ELEMENT;
6501
6502   return info_text;
6503 }
6504
6505 static char *getElementDescriptionFilenameExt(char *basename)
6506 {
6507   char *elements_subdir = ELEMENTS_DIRECTORY;
6508   static char *elements_subdir2 = NULL;
6509   static char *filename = NULL;
6510
6511   if (elements_subdir2 == NULL)
6512     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
6513
6514   checked_free(filename);
6515
6516   // 1st try: look for element description in current level set directory
6517   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
6518   if (fileExists(filename))
6519     return filename;
6520
6521   free(filename);
6522
6523   // 2nd try: look for element description in the game's base directory
6524   filename = getPath3(options.docs_directory, elements_subdir, basename);
6525   if (fileExists(filename))
6526     return filename;
6527
6528   return NULL;
6529 }
6530
6531 static char *getElementDescriptionFilename(int element)
6532 {
6533   char basename[MAX_FILENAME_LEN];
6534   char *filename;
6535
6536   // 1st try: look for element description file for exactly this element
6537   sprintf(basename, "%s.txt", element_info[element].token_name);
6538   filename = getElementDescriptionFilenameExt(basename);
6539   if (filename != NULL)
6540     return filename;
6541
6542   // 2nd try: look for element description file for this element's class
6543   sprintf(basename, "%s.txt", element_info[element].class_name);
6544   filename = getElementDescriptionFilenameExt(basename);
6545   if (filename != NULL)
6546     return filename;
6547
6548   // 3rd try: look for generic fallback text file for any element
6549   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
6550   if (filename != NULL)
6551     return filename;
6552
6553   return NULL;
6554 }
6555
6556 static boolean suppressBorderElement(void)
6557 {
6558   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
6559           lev_fieldx <= MAX_ED_FIELDX &&
6560           lev_fieldy <= MAX_ED_FIELDY);
6561 }
6562
6563 static void InitDynamicEditorElementList(int **elements, int *num_elements)
6564 {
6565   boolean element_found[NUM_FILE_ELEMENTS];
6566   int i, x, y;
6567
6568   // initialize list of used elements to "not used"
6569   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6570     element_found[i] = FALSE;
6571
6572   // find all elements used in current level
6573   for (y = 0; y < lev_fieldy; y++)
6574   {
6575     for (x = 0; x < lev_fieldx; x++)
6576     {
6577       if (Tile[x][y] >= NUM_FILE_ELEMENTS)      // should never happen
6578         continue;
6579
6580       if (IS_MM_WALL(Tile[x][y]))
6581         element_found[map_mm_wall_element(Tile[x][y])] = TRUE;
6582       else
6583         element_found[Tile[x][y]] = TRUE;
6584     }
6585   }
6586
6587   *num_elements = 0;
6588
6589   // count number of elements used in current level
6590   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6591     if (element_found[i])
6592       (*num_elements)++;
6593
6594   // add space for up to 3 more elements for padding that may be needed
6595   *num_elements += 3;
6596
6597   // free memory for old list of elements, if needed
6598   checked_free(*elements);
6599
6600   // allocate memory for new list of elements
6601   *elements = checked_malloc(*num_elements * sizeof(int));
6602
6603   *num_elements = 0;
6604
6605   // add all elements used in current level (non-custom/group/empty elements)
6606   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6607     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) ||
6608                               IS_GROUP_ELEMENT(i) ||
6609                               IS_EMPTY_ELEMENT(i)))
6610       (*elements)[(*num_elements)++] = i;
6611
6612   // add all elements used in current level (custom/group/empty elements)
6613   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6614     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) ||
6615                              IS_GROUP_ELEMENT(i) ||
6616                              IS_EMPTY_ELEMENT(i)))
6617       (*elements)[(*num_elements)++] = i;
6618
6619   while (*num_elements % 4)     // pad with empty elements, if needed
6620     (*elements)[(*num_elements)++] = EL_EMPTY;
6621 }
6622
6623 static void ReinitializeElementList_EnableSections(void)
6624 {
6625   // default: enable all element sections
6626
6627   setup_editor_el_players               = TRUE;
6628   setup_editor_el_boulderdash           = TRUE;
6629   setup_editor_el_boulderdash_native    = TRUE;
6630   setup_editor_el_emerald_mine          = TRUE;
6631   setup_editor_el_emerald_mine_club     = TRUE;
6632   setup_editor_el_more                  = TRUE;
6633   setup_editor_el_sokoban               = TRUE;
6634   setup_editor_el_supaplex              = TRUE;
6635   setup_editor_el_diamond_caves         = TRUE;
6636   setup_editor_el_dx_boulderdash        = TRUE;
6637   setup_editor_el_mirror_magic          = TRUE;
6638   setup_editor_el_deflektor             = TRUE;
6639   setup_editor_el_chars                 = TRUE;
6640   setup_editor_el_steel_chars           = TRUE;
6641
6642   setup_editor_el_custom                = TRUE;
6643   setup_editor_el_user_defined          = TRUE;
6644   setup_editor_el_dynamic               = TRUE;
6645
6646   // now disable all element sections not to be displayed
6647
6648   if (!setup.editor.el_classic)
6649   {
6650     setup_editor_el_players             = FALSE;
6651     setup_editor_el_boulderdash         = FALSE;
6652     setup_editor_el_boulderdash_native  = FALSE;
6653     setup_editor_el_emerald_mine        = FALSE;
6654     setup_editor_el_emerald_mine_club   = FALSE;
6655     setup_editor_el_more                = FALSE;
6656     setup_editor_el_sokoban             = FALSE;
6657     setup_editor_el_supaplex            = FALSE;
6658     setup_editor_el_diamond_caves       = FALSE;
6659     setup_editor_el_dx_boulderdash      = FALSE;
6660     setup_editor_el_mirror_magic        = FALSE;
6661     setup_editor_el_deflektor           = FALSE;
6662     setup_editor_el_chars               = FALSE;
6663     setup_editor_el_steel_chars         = FALSE;
6664   }
6665
6666   if (!setup.editor.el_custom)
6667   {
6668     setup_editor_el_custom              = FALSE;
6669   }
6670
6671   if (!setup.editor.el_user_defined)
6672   {
6673     setup_editor_el_user_defined        = FALSE;
6674   }
6675
6676   if (!setup.editor.el_dynamic)
6677   {
6678     setup_editor_el_dynamic             = FALSE;
6679   }
6680
6681   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
6682   {
6683     setup_editor_el_boulderdash_native  = FALSE;
6684     setup_editor_el_mirror_magic        = FALSE;
6685     setup_editor_el_deflektor           = FALSE;
6686   }
6687   else if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
6688   {
6689     setup_editor_el_players             = FALSE;
6690     setup_editor_el_boulderdash         = FALSE;
6691     setup_editor_el_emerald_mine        = FALSE;
6692     setup_editor_el_emerald_mine_club   = FALSE;
6693     setup_editor_el_more                = FALSE;
6694     setup_editor_el_sokoban             = FALSE;
6695     setup_editor_el_supaplex            = FALSE;
6696     setup_editor_el_diamond_caves       = FALSE;
6697     setup_editor_el_dx_boulderdash      = FALSE;
6698     setup_editor_el_mirror_magic        = FALSE;
6699     setup_editor_el_deflektor           = FALSE;
6700     setup_editor_el_chars               = FALSE;
6701     setup_editor_el_steel_chars         = FALSE;
6702
6703     setup_editor_el_custom              = FALSE;
6704   }
6705   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
6706   {
6707     setup_editor_el_boulderdash         = FALSE;
6708     setup_editor_el_boulderdash_native  = FALSE;
6709     setup_editor_el_more                = FALSE;
6710     setup_editor_el_sokoban             = FALSE;
6711     setup_editor_el_supaplex            = FALSE;
6712     setup_editor_el_diamond_caves       = FALSE;
6713     setup_editor_el_dx_boulderdash      = FALSE;
6714     setup_editor_el_mirror_magic        = FALSE;
6715     setup_editor_el_deflektor           = FALSE;
6716     setup_editor_el_steel_chars         = FALSE;
6717
6718     setup_editor_el_custom              = FALSE;
6719   }
6720   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
6721   {
6722     setup_editor_el_players             = FALSE;
6723     setup_editor_el_boulderdash         = FALSE;
6724     setup_editor_el_boulderdash_native  = FALSE;
6725     setup_editor_el_emerald_mine        = FALSE;
6726     setup_editor_el_emerald_mine_club   = FALSE;
6727     setup_editor_el_more                = FALSE;
6728     setup_editor_el_sokoban             = FALSE;
6729     setup_editor_el_diamond_caves       = FALSE;
6730     setup_editor_el_dx_boulderdash      = FALSE;
6731     setup_editor_el_mirror_magic        = FALSE;
6732     setup_editor_el_deflektor           = FALSE;
6733     setup_editor_el_chars               = FALSE;
6734     setup_editor_el_steel_chars         = FALSE;
6735
6736     setup_editor_el_custom              = FALSE;
6737   }
6738   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
6739   {
6740     setup_editor_el_players             = FALSE;
6741     setup_editor_el_boulderdash         = FALSE;
6742     setup_editor_el_boulderdash_native  = FALSE;
6743     setup_editor_el_emerald_mine        = FALSE;
6744     setup_editor_el_emerald_mine_club   = FALSE;
6745     setup_editor_el_more                = FALSE;
6746     setup_editor_el_sokoban             = FALSE;
6747     setup_editor_el_supaplex            = FALSE;
6748     setup_editor_el_diamond_caves       = FALSE;
6749     setup_editor_el_dx_boulderdash      = FALSE;
6750     setup_editor_el_steel_chars         = FALSE;
6751
6752     setup_editor_el_custom              = FALSE;
6753   }
6754 }
6755
6756 static void ReinitializeElementList(void)
6757 {
6758   static boolean initialization_needed = TRUE;
6759   int pos = 0;
6760   int i, j;
6761
6762   ReinitializeElementList_EnableSections();
6763
6764   if (initialization_needed)
6765   {
6766     LoadSetup_EditorCascade();          // load last editor cascade state
6767
6768     // initialize editor cascade element from saved cascade state
6769     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6770     {
6771       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
6772       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
6773
6774       if (IS_EDITOR_CASCADE(*cascade_element))
6775         *cascade_element =
6776           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
6777            EL_CASCADE_INACTIVE(*cascade_element));
6778     }
6779
6780     initialization_needed = FALSE;
6781   }
6782
6783   checked_free(editor_elements);
6784
6785   // reload optional user defined element list for each invocation of editor
6786   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
6787                                    &num_editor_el_user_defined);
6788
6789   // initialize dynamic level element list for each invocation of editor
6790   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
6791                                &num_editor_el_dynamic);
6792
6793   // initialize list of empty elements (used for padding, if needed)
6794   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6795     editor_el_empty[i] = EL_EMPTY;
6796
6797   // do some sanity checks for each element from element list
6798   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6799   {
6800     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6801     {
6802       int element = (*editor_elements_info[i].element_list)[j];
6803
6804       if (element >= NUM_FILE_ELEMENTS)
6805         Warn("editor element %d is runtime element", element);
6806
6807       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
6808         Warn("no element description text for element %d", element);
6809     }
6810   }
6811
6812   num_editor_elements = 0;
6813   use_el_empty = FALSE;
6814
6815   // determine size of element list
6816   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6817   {
6818     if (*editor_elements_info[i].setup_value)
6819     {
6820       boolean found_inactive_cascade = FALSE;
6821
6822       if (setup.editor.el_headlines)
6823       {
6824         // required for correct padding of palette headline buttons
6825         if (*editor_elements_info[i].headline_list_size > 0)
6826           num_editor_elements += ED_ELEMENTLIST_COLS;
6827
6828         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6829         {
6830           int element = (*editor_elements_info[i].headline_list)[j];
6831
6832           if (IS_EDITOR_CASCADE_INACTIVE(element))
6833             found_inactive_cascade = TRUE;
6834         }
6835       }
6836
6837       if (found_inactive_cascade)
6838         continue;
6839
6840       // required for correct padding of palette element buttons
6841       int element_list_size = *editor_elements_info[i].element_list_size;
6842       int element_rows =
6843         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6844       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6845
6846       num_editor_elements += element_buttons;
6847     }
6848   }
6849
6850   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
6851   {
6852     // offer at least as many elements as element buttons exist
6853     use_el_empty = TRUE;
6854     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
6855
6856     num_editor_elements += num_editor_el_empty;
6857   }
6858   else
6859   {
6860     num_editor_el_empty = 0;
6861   }
6862
6863   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
6864
6865   // fill element list
6866   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6867   {
6868     boolean found_inactive_cascade = FALSE;
6869
6870     if (*editor_elements_info[i].setup_value)
6871     {
6872       if (setup.editor.el_headlines)
6873       {
6874         // required for correct padding of palette headline buttons
6875         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
6876                              ED_ELEMENTLIST_COLS : 0);
6877
6878         for (j = 0; j < headline_size; j++)
6879         {
6880           // use empty elements for padding of palette headline buttons
6881           int element = (j < *editor_elements_info[i].headline_list_size ?
6882                          (*editor_elements_info[i].headline_list)[j] :
6883                          editor_el_empty[0]);
6884
6885           editor_elements[pos++] = element;
6886
6887           if (IS_EDITOR_CASCADE_INACTIVE(element))
6888             found_inactive_cascade = TRUE;
6889         }
6890       }
6891
6892       if (found_inactive_cascade)
6893         continue;
6894
6895       // required for correct padding of palette element buttons
6896       int element_list_size = *editor_elements_info[i].element_list_size;
6897       int element_rows =
6898         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6899       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6900
6901       // copy all elements from element list
6902       for (j = 0; j < element_list_size; j++)
6903         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
6904
6905       // use empty elements for padding of palette element buttons
6906       for (j = 0; j < element_buttons - element_list_size; j++)
6907         editor_elements[pos++] = editor_el_empty[0];
6908     }
6909   }
6910
6911   // (this function is also called before editor gadgets are initialized!)
6912   AdjustElementListScrollbar();
6913 }
6914
6915 void PrintEditorElementList(void)
6916 {
6917   boolean *stop = &setup_editor_el_user_defined;
6918   int i, j;
6919
6920   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
6921   {
6922     int cascade_element = (*editor_elements_info[i].headline_list)[0];
6923
6924     if (IS_EDITOR_CASCADE(cascade_element))
6925     {
6926       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
6927       char *headline = element_info[cascade_element_show].editor_description;
6928
6929       PrintLineWithPrefix("# ", "-", 77);
6930       Print("# %s\n", headline);
6931       PrintLineWithPrefix("# ", "-", 77);
6932     }
6933
6934     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6935     {
6936       int element = (*editor_elements_info[i].headline_list)[j];
6937
6938       if (IS_EDITOR_CASCADE(element))
6939         element = EL_CHAR_MINUS;
6940
6941       Print("# %s\n", element_info[element].token_name);
6942     }
6943
6944     if (j > 0)
6945       Print("#\n");
6946
6947     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6948     {
6949       int element = (*editor_elements_info[i].element_list)[j];
6950
6951       Print("# %s\n", element_info[element].token_name);
6952     }
6953
6954     if (j > 0)
6955       Print("#\n");
6956   }
6957 }
6958
6959 static void ReinitializeElementListButtons(void)
6960 {
6961   static boolean last_setup_value_headlines = FALSE;
6962   static boolean initialization_needed = TRUE;
6963   int i;
6964
6965   if (!initialization_needed)   // check if editor element setup has changed
6966   {
6967     if (last_setup_value_headlines != setup.editor.el_headlines)
6968       initialization_needed = TRUE;
6969
6970     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6971       if (editor_elements_info[i].last_setup_value !=
6972           *editor_elements_info[i].setup_value)
6973         initialization_needed = TRUE;
6974   }
6975
6976   if (!initialization_needed)
6977     return;
6978
6979   FreeLevelEditorGadgets();
6980   CreateLevelEditorGadgets();
6981
6982   // store current setup values for next invocation of this function
6983   last_setup_value_headlines = setup.editor.el_headlines;
6984   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6985     editor_elements_info[i].last_setup_value =
6986       *editor_elements_info[i].setup_value;
6987
6988   initialization_needed = FALSE;
6989 }
6990
6991 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
6992                               boolean input)
6993 {
6994   int border_graphic =
6995     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
6996   struct GraphicInfo *g = &graphic_info[border_graphic];
6997   Bitmap *src_bitmap = g->bitmap;
6998   int src_x = g->src_x;
6999   int src_y = g->src_y;
7000   int border_size = g->border_size;
7001   int border_xpos = g->width  - border_size;
7002   int border_ypos = g->height - border_size;
7003   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7004   int i;
7005
7006   BlitBitmap(src_bitmap, drawto, src_x, src_y,
7007              border_size, border_size,
7008              dest_x - border_size, dest_y - border_size);
7009   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
7010              border_size, border_size,
7011              dest_x + width, dest_y - border_size);
7012   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
7013              border_size, border_size,
7014              dest_x - border_size, dest_y + height);
7015   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
7016              border_size, border_size,
7017              dest_x + width, dest_y + height);
7018
7019   for (i = 0; i < width / tilesize; i++)
7020   {
7021     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
7022                tilesize, border_size,
7023                dest_x + i * tilesize, dest_y - border_size);
7024     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
7025                tilesize, border_size,
7026                dest_x + i * tilesize, dest_y + height);
7027   }
7028
7029   for (i = 0; i < height / tilesize; i++)
7030   {
7031     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
7032                border_size, tilesize,
7033                dest_x - border_size, dest_y + i * tilesize);
7034     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
7035                border_size, tilesize,
7036                dest_x + width, dest_y + i * tilesize);
7037   }
7038
7039   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
7040 }
7041
7042 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
7043 {
7044   int xsize_tile = MAX(ed_tilesize, xsize);
7045   int ysize_tile = MAX(ed_tilesize, ysize);
7046   int xsize_full = xsize + 1;
7047   int ysize_full = ysize + 1;
7048   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
7049   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
7050   Pixel line_color = getTabulatorBarColor();
7051
7052   if (line_color == BLACK_PIXEL)                // black => transparent
7053     return;
7054
7055   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
7056   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
7057   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
7058 }
7059
7060 static void DrawEditorLevelBorderLinesIfNeeded(void)
7061 {
7062   int xsize = lev_fieldx * ed_tilesize;
7063   int ysize = lev_fieldy * ed_tilesize;
7064   int line_size = getTabulatorBarHeight();
7065
7066   if (!suppressBorderElement())
7067     return;
7068
7069   // draw little border line around editable level playfield
7070
7071   if (xsize < SXSIZE)
7072     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
7073
7074   if (ysize < SYSIZE)
7075     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
7076
7077   if (xsize < SXSIZE && ysize < SYSIZE)
7078     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
7079 }
7080
7081 static void DrawEditorElement(int x, int y, int element)
7082 {
7083   DrawSizedElement(x, y, element, ed_tilesize);
7084 }
7085
7086 static void DrawEditorElementThruMask(int x, int y, int element)
7087 {
7088   DrawSizedElementThruMask(x, y, element, ed_tilesize);
7089 }
7090
7091 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
7092 {
7093   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
7094 }
7095
7096 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
7097 {
7098   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
7099   DrawEditorLevelBorderLinesIfNeeded();
7100 }
7101
7102 static void DrawDrawingArea(int id)
7103 {
7104   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7105   int x, y;
7106
7107   int *value = drawingarea_info[id].value;
7108   int area_xsize = drawingarea_info[id].area_xsize;
7109   int area_ysize = drawingarea_info[id].area_ysize;
7110   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7111
7112   for (x = 0; x < area_xsize; x++)
7113     for (y = 0; y < area_ysize; y++)
7114       DrawSizedGraphicExt(drawto,
7115                           gi->x + x * tilesize,
7116                           gi->y + y * tilesize,
7117                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
7118 }
7119
7120 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
7121 {
7122   int x, y;
7123   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
7124   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
7125
7126   BlitBitmap(drawto, drawto,
7127              SX + (dx == -1 ? ed_tilesize : 0),
7128              SY + (dy == -1 ? ed_tilesize : 0),
7129              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
7130              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
7131              SX + (dx == +1 ? ed_tilesize : 0),
7132              SY + (dy == +1 ? ed_tilesize : 0));
7133
7134   if (dx)
7135   {
7136     x = (dx == 1 ? 0 : ed_fieldx - 1);
7137     for (y = 0; y < ed_fieldy; y++)
7138       DrawEditorElementOrWall(x, y, from_x, from_y);
7139   }
7140   else if (dy)
7141   {
7142     y = (dy == 1 ? 0 : ed_fieldy - 1);
7143     for (x = 0; x < ed_fieldx; x++)
7144       DrawEditorElementOrWall(x, y, from_x, from_y);
7145   }
7146
7147   redraw_mask |= REDRAW_FIELD;
7148   BackToFront();
7149 }
7150
7151 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
7152                                    int *x, int *y)
7153 {
7154   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
7155 }
7156
7157 static void CreateControlButtons(void)
7158 {
7159   struct GadgetInfo *gi;
7160   int i;
7161
7162   // create toolbox buttons
7163   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7164   {
7165     int type_id = controlbutton_info[i].gadget_id;      // same as gadget ID here
7166     int id = controlbutton_info[i].gadget_id;
7167     int type = controlbutton_info[i].gadget_type;
7168     int graphic = controlbutton_info[i].graphic;
7169     struct XYTileSize *pos = controlbutton_info[i].pos;
7170     struct GraphicInfo *gd = &graphic_info[graphic];
7171     Bitmap *deco_bitmap = NULL;
7172     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
7173     int tile_size = 0, deco_shift = 0;
7174     boolean deco_masked = FALSE;
7175     int gd_x1 = gd->src_x;
7176     int gd_y1 = gd->src_y;
7177     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7178     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7179     int gd_x1a = gd->src_x + gd->active_xoffset;
7180     int gd_y1a = gd->src_y + gd->active_yoffset;
7181     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7182     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7183     int x = pos->x;
7184     int y = pos->y;
7185     unsigned int event_mask;
7186     int radio_button_nr = RADIO_NR_NONE;
7187     boolean checked = FALSE;
7188
7189     if (type_id != i)
7190       Fail("'controlbutton_info' structure corrupted at index %d -- please fix", i);
7191
7192     if (type == GD_TYPE_RADIO_BUTTON)
7193     {
7194       event_mask = GD_EVENT_PRESSED;
7195       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
7196
7197       if (id == drawing_function)
7198         checked = TRUE;
7199     }
7200     else
7201     {
7202       if (id == GADGET_ID_WRAP_LEFT ||
7203           id == GADGET_ID_WRAP_RIGHT ||
7204           id == GADGET_ID_WRAP_UP ||
7205           id == GADGET_ID_WRAP_DOWN)
7206         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7207       else
7208         event_mask = GD_EVENT_RELEASED;
7209     }
7210
7211     if (id == GADGET_ID_PROPERTIES ||
7212         id == GADGET_ID_PALETTE)
7213     {
7214       x += DX;
7215       y += DY;
7216     }
7217     else if (id == GADGET_ID_ELEMENT_LEFT ||
7218              id == GADGET_ID_ELEMENT_MIDDLE ||
7219              id == GADGET_ID_ELEMENT_RIGHT)
7220     {
7221       x += DX;
7222       y += DY;
7223
7224       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
7225                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
7226                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
7227
7228       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
7229                                    editor.button.element_left.tile_size :
7230                                    id == GADGET_ID_ELEMENT_MIDDLE ?
7231                                    editor.button.element_middle.tile_size :
7232                                    id == GADGET_ID_ELEMENT_RIGHT ?
7233                                    editor.button.element_right.tile_size : 0);
7234
7235       // make sure that decoration does not overlap gadget border
7236       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
7237
7238       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
7239
7240       deco_xpos = (gd->width  - tile_size) / 2;
7241       deco_ypos = (gd->height - tile_size) / 2;
7242       deco_shift = 1;
7243       deco_masked = gd->draw_masked;
7244     }
7245     else
7246     {
7247       x += EX;
7248       y += EY;
7249     }
7250
7251     gi = CreateGadget(GDI_CUSTOM_ID, id,
7252                       GDI_CUSTOM_TYPE_ID, type_id,
7253                       GDI_IMAGE_ID, graphic,
7254                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
7255                       GDI_X, x,
7256                       GDI_Y, y,
7257                       GDI_WIDTH, gd->width,
7258                       GDI_HEIGHT, gd->height,
7259                       GDI_TYPE, type,
7260                       GDI_STATE, GD_BUTTON_UNPRESSED,
7261                       GDI_RADIO_NR, radio_button_nr,
7262                       GDI_CHECKED, checked,
7263                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7264                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7265                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7266                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7267                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7268                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7269                       GDI_DECORATION_SIZE, tile_size, tile_size,
7270                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
7271                       GDI_DECORATION_MASKED, deco_masked,
7272                       GDI_EVENT_MASK, event_mask,
7273                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7274                       GDI_CALLBACK_ACTION, HandleControlButtons,
7275                       GDI_END);
7276
7277     if (gi == NULL)
7278       Fail("cannot create gadget");
7279
7280     level_editor_gadget[id] = gi;
7281   }
7282
7283   // these values are not constant, but can change at runtime
7284   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
7285   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
7286   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
7287   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
7288   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
7289   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
7290   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
7291   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
7292   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
7293   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
7294   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
7295   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
7296
7297   // create buttons for scrolling of drawing area and element list
7298   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
7299   {
7300     int id = scrollbutton_info[i].gadget_id;
7301     int type_id = scrollbutton_info[i].gadget_type_id;
7302     int graphic = scrollbutton_info[i].graphic;
7303     struct GraphicInfo *gd = &graphic_info[graphic];
7304     Bitmap *gd_bitmap = gd->bitmap;
7305     int gd_x1 = gd->src_x;
7306     int gd_y1 = gd->src_y;
7307     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7308     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7309     int width  = gd->width;
7310     int height = gd->height;
7311     int x = scrollbutton_pos[i].x;
7312     int y = scrollbutton_pos[i].y;
7313     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7314
7315     if (type_id != i)
7316       Fail("'scrollbutton_info' structure corrupted at index %d -- please fix", i);
7317
7318     if (id == GADGET_ID_SCROLL_LIST_UP ||
7319         id == GADGET_ID_SCROLL_LIST_DOWN)
7320     {
7321       x += PX;
7322       y += PY;
7323     }
7324     else
7325     {
7326       x += SX;
7327       y += SY;
7328     }
7329
7330     gi = CreateGadget(GDI_CUSTOM_ID, id,
7331                       GDI_CUSTOM_TYPE_ID, type_id,
7332                       GDI_IMAGE_ID, graphic,
7333                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
7334                       GDI_X, x,
7335                       GDI_Y, y,
7336                       GDI_WIDTH, width,
7337                       GDI_HEIGHT, height,
7338                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7339                       GDI_STATE, GD_BUTTON_UNPRESSED,
7340                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7341                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7342                       GDI_EVENT_MASK, event_mask,
7343                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7344                       GDI_CALLBACK_ACTION, HandleControlButtons,
7345                       GDI_END);
7346
7347     if (gi == NULL)
7348       Fail("cannot create gadget");
7349
7350     level_editor_gadget[id] = gi;
7351   }
7352
7353   // create buttons for element list
7354   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7355   {
7356     int type_id = i;
7357     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
7358     int graphic = IMG_EDITOR_PALETTE_BUTTON;
7359     struct GraphicInfo *gd = &graphic_info[graphic];
7360     Bitmap *gd_bitmap = gd->bitmap;
7361     Bitmap *deco_bitmap;
7362     int deco_x, deco_y, deco_xpos, deco_ypos;
7363     int gd_x1 = gd->src_x;
7364     int gd_y1 = gd->src_y;
7365     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7366     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7367     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
7368     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
7369     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
7370     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
7371     int element = editor_elements[i];
7372     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
7373     unsigned int event_mask = GD_EVENT_RELEASED;
7374
7375     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
7376
7377     deco_xpos = (gd->width  - tile_size) / 2;
7378     deco_ypos = (gd->height - tile_size) / 2;
7379
7380     gi = CreateGadget(GDI_CUSTOM_ID, id,
7381                       GDI_CUSTOM_TYPE_ID, type_id,
7382                       GDI_IMAGE_ID, graphic,
7383                       GDI_INFO_TEXT, getElementInfoText(element),
7384                       GDI_X, x,
7385                       GDI_Y, y,
7386                       GDI_WIDTH, gd->width,
7387                       GDI_HEIGHT, gd->height,
7388                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7389                       GDI_STATE, GD_BUTTON_UNPRESSED,
7390                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7391                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7392                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7393                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7394                       GDI_DECORATION_SIZE, tile_size, tile_size,
7395                       GDI_DECORATION_SHIFTING, 1, 1,
7396                       GDI_EVENT_MASK, event_mask,
7397                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7398                       GDI_CALLBACK_ACTION, HandleControlButtons,
7399                       GDI_END);
7400
7401     if (gi == NULL)
7402       Fail("cannot create gadget");
7403
7404     level_editor_gadget[id] = gi;
7405   }
7406 }
7407
7408 static void CreateCounterButtons(void)
7409 {
7410   int max_infotext_len = getMaxInfoTextLength();
7411   int i;
7412
7413   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
7414   {
7415     int type_id = counterbutton_info[i].gadget_type_id;
7416     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
7417     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
7418     int j;
7419
7420     if (type_id != i)
7421       Fail("'counterbutton_info' structure corrupted at index %d -- please fix", i);
7422
7423     // determine horizontal position to the right of specified gadget
7424     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7425       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
7426            ED_GADGET_TEXT_DISTANCE);
7427
7428     // determine horizontal offset for leading text
7429     if (counterbutton_info[i].text_left != NULL)
7430       x += getTextWidthForGadget(counterbutton_info[i].text_left);
7431
7432     for (j = 0; j < 2; j++)
7433     {
7434       struct GadgetInfo *gi;
7435       int id = (j == 0 ?
7436                 counterbutton_info[i].gadget_id_down :
7437                 counterbutton_info[i].gadget_id_up);
7438       int graphic;
7439       struct GraphicInfo *gd;
7440       int gd_x1, gd_x2, gd_y1, gd_y2;
7441       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7442       char infotext[max_infotext_len + 1];
7443
7444       if (i == ED_COUNTER_ID_SELECT_LEVEL)
7445       {
7446         graphic = (j == 0 ?
7447                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
7448                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
7449
7450         event_mask |= GD_EVENT_RELEASED;
7451
7452         if (j == 0)
7453         {
7454           x = DX + editor.button.prev_level.x;
7455           y = DY + editor.button.prev_level.y;
7456         }
7457         else
7458         {
7459           x = DX + editor.button.next_level.x;
7460           y = DY + editor.button.next_level.y;
7461         }
7462       }
7463       else
7464       {
7465         graphic = (j == 0 ?
7466                    IMG_EDITOR_COUNTER_DOWN :
7467                    IMG_EDITOR_COUNTER_UP);
7468       }
7469
7470       gd = &graphic_info[graphic];
7471
7472       gd_x1 = gd->src_x;
7473       gd_y1 = gd->src_y;
7474       gd_x2 = gd->src_x + gd->pressed_xoffset;
7475       gd_y2 = gd->src_y + gd->pressed_yoffset;
7476
7477       sprintf(infotext, "%s counter value by 1, 5 or 10",
7478               (j == 0 ? "Decrease" : "Increase"));
7479
7480       gi = CreateGadget(GDI_CUSTOM_ID, id,
7481                         GDI_CUSTOM_TYPE_ID, type_id,
7482                         GDI_IMAGE_ID, graphic,
7483                         GDI_INFO_TEXT, infotext,
7484                         GDI_X, x,
7485                         GDI_Y, y,
7486                         GDI_WIDTH, gd->width,
7487                         GDI_HEIGHT, gd->height,
7488                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7489                         GDI_STATE, GD_BUTTON_UNPRESSED,
7490                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7491                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7492                         GDI_EVENT_MASK, event_mask,
7493                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7494                         GDI_CALLBACK_ACTION, HandleCounterButtons,
7495                         GDI_END);
7496
7497       if (gi == NULL)
7498         Fail("cannot create gadget");
7499
7500       level_editor_gadget[id] = gi;
7501       right_gadget_border[id] =
7502         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7503
7504       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
7505
7506       if (j == 0)
7507       {
7508         int font_type = FONT_INPUT_1;
7509         int font_type_active = FONT_INPUT_1_ACTIVE;
7510
7511         id = counterbutton_info[i].gadget_id_text;
7512
7513         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7514
7515         if (i == ED_COUNTER_ID_SELECT_LEVEL)
7516         {
7517           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
7518
7519           font_type = FONT_LEVEL_NUMBER;
7520           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
7521
7522           x = DX + editor.input.level_number.x;
7523           y = DY + editor.input.level_number.y;
7524         }
7525         else
7526         {
7527           graphic = IMG_EDITOR_COUNTER_INPUT;
7528         }
7529
7530         gd = &graphic_info[graphic];
7531
7532         gd_x1 = gd->src_x;
7533         gd_y1 = gd->src_y;
7534         gd_x2 = gd->src_x + gd->active_xoffset;
7535         gd_y2 = gd->src_y + gd->active_yoffset;
7536
7537         gi = CreateGadget(GDI_CUSTOM_ID, id,
7538                           GDI_CUSTOM_TYPE_ID, type_id,
7539                           GDI_IMAGE_ID, graphic,
7540                           GDI_INFO_TEXT, "Enter counter value",
7541                           GDI_X, x,
7542                           GDI_Y, y,
7543                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
7544                           GDI_NUMBER_VALUE, 0,
7545                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
7546                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
7547                           GDI_TEXT_SIZE, 3,     // minimal counter text size
7548                           GDI_TEXT_FONT, font_type,
7549                           GDI_TEXT_FONT_ACTIVE, font_type_active,
7550                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7551                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7552                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7553                           GDI_DESIGN_WIDTH, gd->width,
7554                           GDI_EVENT_MASK, event_mask,
7555                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7556                           GDI_CALLBACK_ACTION, HandleCounterButtons,
7557                           GDI_END);
7558
7559         if (gi == NULL)
7560           Fail("cannot create gadget");
7561
7562         level_editor_gadget[id] = gi;
7563         right_gadget_border[id] =
7564           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7565
7566         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
7567       }
7568     }
7569   }
7570 }
7571
7572 static void CreateDrawingAreas(void)
7573 {
7574   int i;
7575
7576   // these values are not constant, but can change at runtime
7577   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
7578   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
7579
7580   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
7581   {
7582     struct GadgetInfo *gi;
7583     int id = drawingarea_info[i].gadget_id;
7584     int type_id = drawingarea_info[i].gadget_type_id;
7585     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
7586     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
7587     int area_xsize = drawingarea_info[i].area_xsize;
7588     int area_ysize = drawingarea_info[i].area_ysize;
7589     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
7590                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
7591     unsigned int event_mask =
7592       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
7593       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
7594
7595     if (type_id != i)
7596       Fail("'drawingarea_info' structure corrupted at index %d -- please fix", i);
7597
7598     // determine horizontal position to the right of specified gadget
7599     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
7600       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
7601            ED_DRAWINGAREA_TEXT_DISTANCE);
7602
7603     // determine horizontal offset for leading text
7604     if (drawingarea_info[i].text_left != NULL)
7605       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
7606
7607     gi = CreateGadget(GDI_CUSTOM_ID, id,
7608                       GDI_CUSTOM_TYPE_ID, type_id,
7609                       GDI_X, x,
7610                       GDI_Y, y,
7611                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
7612                       GDI_AREA_SIZE, area_xsize, area_ysize,
7613                       GDI_ITEM_SIZE, item_size, item_size,
7614                       GDI_EVENT_MASK, event_mask,
7615                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
7616                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
7617                       GDI_END);
7618
7619     if (gi == NULL)
7620       Fail("cannot create gadget");
7621
7622     level_editor_gadget[id] = gi;
7623     right_gadget_border[id] =
7624       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
7625   }
7626 }
7627
7628 static void CreateTextInputGadgets(void)
7629 {
7630   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
7631   int max_infotext_len = getMaxInfoTextLength();
7632   int i;
7633
7634   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
7635   {
7636     int gd_x1 = gd->src_x;
7637     int gd_y1 = gd->src_y;
7638     int gd_x2 = gd->src_x + gd->active_xoffset;
7639     int gd_y2 = gd->src_y + gd->active_yoffset;
7640     struct GadgetInfo *gi;
7641     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7642     char infotext[MAX_OUTPUT_LINESIZE + 1];
7643     int id = textinput_info[i].gadget_id;
7644     int type_id = textinput_info[i].gadget_type_id;
7645     int x, y;
7646
7647     if (type_id != i)
7648       Fail("'textinput_info' structure corrupted at index %d -- please fix", i);
7649
7650     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
7651     {
7652       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
7653       int border_size = gd->border_size;
7654       int font_nr = FONT_INPUT_1;
7655       int font_height = getFontHeight(font_nr);
7656       int xoffset = element_border + TILEX + element_border + 3 * border_size;
7657       int yoffset = element_border + (TILEY - font_height) / 2;
7658
7659       x = (editor.settings.element_name.x != -1 ?
7660            editor.settings.element_name.x :
7661            editor.settings.element_graphic.x + xoffset) - border_size;
7662       y = (editor.settings.element_name.y != -1 ?
7663            editor.settings.element_name.y :
7664            editor.settings.element_graphic.y + yoffset) - border_size;
7665     }
7666     else
7667     {
7668       x = ED_SETTINGS_X(textinput_info[i].x);
7669       y = ED_SETTINGS_Y(textinput_info[i].y);
7670     }
7671
7672     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
7673     infotext[max_infotext_len] = '\0';
7674
7675     gi = CreateGadget(GDI_CUSTOM_ID, id,
7676                       GDI_CUSTOM_TYPE_ID, type_id,
7677                       GDI_INFO_TEXT, infotext,
7678                       GDI_X, SX + x,
7679                       GDI_Y, SY + y,
7680                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
7681                       GDI_TEXT_VALUE, textinput_info[i].value,
7682                       GDI_TEXT_SIZE, textinput_info[i].size,
7683                       GDI_TEXT_FONT, FONT_INPUT_1,
7684                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7685                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7686                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7687                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7688                       GDI_DESIGN_WIDTH, gd->width,
7689                       GDI_EVENT_MASK, event_mask,
7690                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7691                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
7692                       GDI_END);
7693
7694     if (gi == NULL)
7695       Fail("cannot create gadget");
7696
7697     level_editor_gadget[id] = gi;
7698   }
7699 }
7700
7701 static void CreateTextAreaGadgets(void)
7702 {
7703   int max_infotext_len = getMaxInfoTextLength();
7704   int i;
7705
7706   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
7707   {
7708     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
7709     int gd_x1 = gd->src_x;
7710     int gd_y1 = gd->src_y;
7711     int gd_x2 = gd->src_x + gd->active_xoffset;
7712     int gd_y2 = gd->src_y + gd->active_yoffset;
7713     struct GadgetInfo *gi;
7714     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
7715     char infotext[MAX_OUTPUT_LINESIZE + 1];
7716     int id = textarea_info[i].gadget_id;
7717     int type_id = textarea_info[i].gadget_type_id;
7718     int area_xsize = textarea_info[i].xsize;
7719     int area_ysize = textarea_info[i].ysize;
7720
7721     if (type_id != i)
7722       Fail("'textarea_info' structure corrupted at index %d -- please fix", i);
7723
7724     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
7725     infotext[max_infotext_len] = '\0';
7726
7727     gi = CreateGadget(GDI_CUSTOM_ID, id,
7728                       GDI_CUSTOM_TYPE_ID, type_id,
7729                       GDI_INFO_TEXT, infotext,
7730                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
7731                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
7732                       GDI_TYPE, GD_TYPE_TEXT_AREA,
7733                       GDI_AREA_SIZE, area_xsize, area_ysize,
7734                       GDI_TEXT_FONT, FONT_INPUT_1,
7735                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7736                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7737                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7738                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7739                       GDI_DESIGN_WIDTH, gd->width,
7740                       GDI_EVENT_MASK, event_mask,
7741                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7742                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
7743                       GDI_END);
7744
7745     if (gi == NULL)
7746       Fail("cannot create gadget");
7747
7748     level_editor_gadget[id] = gi;
7749   }
7750 }
7751
7752 static void CreateSelectboxGadgets(void)
7753 {
7754   int max_infotext_len = getMaxInfoTextLength();
7755
7756   int i, j;
7757
7758   for (i = 0; i < ED_NUM_SELECTBOX; i++)
7759   {
7760     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
7761     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
7762     int gd_x1 = gd->src_x;
7763     int gd_y1 = gd->src_y;
7764     int gd_x2 = gd->src_x + gd->active_xoffset;
7765     int gd_y2 = gd->src_y + gd->active_yoffset;
7766     int selectbox_button_xsize = gd2->width;
7767     struct GadgetInfo *gi;
7768     char infotext[MAX_OUTPUT_LINESIZE + 1];
7769     int id = selectbox_info[i].gadget_id;
7770     int type_id = selectbox_info[i].gadget_type_id;
7771     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
7772     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
7773     unsigned int event_mask =
7774       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7775
7776     if (type_id != i)
7777       Fail("'selectbox_info' structure corrupted at index %d -- please fix", i);
7778
7779     if (selectbox_info[i].size == -1)   // dynamically determine size
7780     {
7781       // (we cannot use -1 for uninitialized values if we directly compare
7782       // with results from strlen(), because the '<' and '>' operation will
7783       // implicitely cast -1 to an unsigned integer value!)
7784       selectbox_info[i].size = 0;
7785
7786       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
7787         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
7788           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
7789
7790       selectbox_info[i].size++;         // add one character empty space
7791     }
7792
7793     // determine horizontal position to the right of specified gadget
7794     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
7795       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
7796            ED_GADGET_TEXT_DISTANCE);
7797
7798     // determine horizontal offset for leading text
7799     if (selectbox_info[i].text_left != NULL)
7800       x += getTextWidthForGadget(selectbox_info[i].text_left);
7801
7802     sprintf(infotext, "%s", selectbox_info[i].infotext);
7803     infotext[max_infotext_len] = '\0';
7804
7805     gi = CreateGadget(GDI_CUSTOM_ID, id,
7806                       GDI_CUSTOM_TYPE_ID, type_id,
7807                       GDI_INFO_TEXT, infotext,
7808                       GDI_X, x,
7809                       GDI_Y, y,
7810                       GDI_TYPE, GD_TYPE_SELECTBOX,
7811                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
7812                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
7813                       GDI_TEXT_SIZE, selectbox_info[i].size,
7814                       GDI_TEXT_FONT, FONT_INPUT_1,
7815                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7816                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
7817                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7818                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7819                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7820                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
7821                       GDI_DESIGN_WIDTH, gd->width,
7822                       GDI_EVENT_MASK, event_mask,
7823                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7824                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
7825                       GDI_END);
7826
7827     if (gi == NULL)
7828       Fail("cannot create gadget");
7829
7830     level_editor_gadget[id] = gi;
7831     right_gadget_border[id] =
7832       getRightGadgetBorder(gi, selectbox_info[i].text_right);
7833   }
7834 }
7835
7836 static void CreateTextbuttonGadgets(void)
7837 {
7838   int max_infotext_len = getMaxInfoTextLength();
7839   int i;
7840
7841   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
7842   {
7843     int id = textbutton_info[i].gadget_id;
7844     int type_id = textbutton_info[i].gadget_type_id;
7845     int is_tab_button =
7846       ((id >= GADGET_ID_LEVELCONFIG_LEVEL && id <= GADGET_ID_LEVELCONFIG_ENGINE) ||
7847        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
7848     int graphic =
7849       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
7850     int gadget_distance =
7851       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
7852     struct GraphicInfo *gd = &graphic_info[graphic];
7853     int gd_x1 = gd->src_x;
7854     int gd_y1 = gd->src_y;
7855     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7856     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7857     int gd_x1a = gd->src_x + gd->active_xoffset;
7858     int gd_y1a = gd->src_y + gd->active_yoffset;
7859     int border_xsize = gd->border_size + gd->draw_xoffset;
7860     int border_ysize = gd->border_size;
7861     struct GadgetInfo *gi;
7862     unsigned int event_mask = GD_EVENT_RELEASED;
7863     char infotext[MAX_OUTPUT_LINESIZE + 1];
7864     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
7865     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
7866
7867     if (type_id != i)
7868       Fail("'textbutton_info' structure corrupted at index %d -- please fix", i);
7869
7870     if (textbutton_info[i].size == -1)  // dynamically determine size
7871       textbutton_info[i].size = strlen(textbutton_info[i].text);
7872
7873     sprintf(infotext, "%s", textbutton_info[i].infotext);
7874     infotext[max_infotext_len] = '\0';
7875
7876     // determine horizontal position to the right of specified gadget
7877     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7878     {
7879       int gadget_id_align = textbutton_info[i].gadget_id_align;
7880
7881       x = right_gadget_border[gadget_id_align] + gadget_distance;
7882
7883       if (textbutton_info[i].y == -1)
7884         y = level_editor_gadget[gadget_id_align]->y;
7885     }
7886
7887     // determine horizontal offset for leading text
7888     if (textbutton_info[i].text_left != NULL)
7889       x += getTextWidthForGadget(textbutton_info[i].text_left);
7890
7891     gi = CreateGadget(GDI_CUSTOM_ID, id,
7892                       GDI_CUSTOM_TYPE_ID, type_id,
7893                       GDI_IMAGE_ID, graphic,
7894                       GDI_INFO_TEXT, infotext,
7895                       GDI_X, x,
7896                       GDI_Y, y,
7897                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
7898                       GDI_TEXT_VALUE, textbutton_info[i].text,
7899                       GDI_TEXT_SIZE, textbutton_info[i].size,
7900                       GDI_TEXT_FONT, FONT_INPUT_2,
7901                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
7902                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7903                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7904                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7905                       GDI_BORDER_SIZE, border_xsize, border_ysize,
7906                       GDI_DESIGN_WIDTH, gd->width,
7907                       GDI_DECORATION_SHIFTING, 1, 1,
7908                       GDI_EVENT_MASK, event_mask,
7909                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7910                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
7911                       GDI_END);
7912
7913     if (gi == NULL)
7914       Fail("cannot create gadget");
7915
7916     level_editor_gadget[id] = gi;
7917     right_gadget_border[id] =
7918       getRightGadgetBorder(gi, textbutton_info[i].text_right);
7919   }
7920 }
7921
7922 static void CreateGraphicbuttonGadgets(void)
7923 {
7924   struct GadgetInfo *gi;
7925   int i;
7926
7927   // create buttons for scrolling of drawing area and element list
7928   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
7929   {
7930     int id = graphicbutton_info[i].gadget_id;
7931     int type_id = graphicbutton_info[i].gadget_type_id;
7932     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
7933     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
7934     int graphic = graphicbutton_info[i].graphic;
7935     struct GraphicInfo *gd = &graphic_info[graphic];
7936     int gd_x1 = gd->src_x;
7937     int gd_y1 = gd->src_y;
7938     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7939     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7940     unsigned int event_mask = GD_EVENT_RELEASED;
7941
7942     if (type_id != i)
7943       Fail("'graphicbutton_info' structure corrupted at index %d -- please fix", i);
7944
7945     // determine horizontal position to the right of specified gadget
7946     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7947       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
7948            ED_GADGET_TEXT_DISTANCE);
7949
7950     // determine horizontal offset for leading text
7951     if (graphicbutton_info[i].text_left != NULL)
7952       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
7953
7954     gi = CreateGadget(GDI_CUSTOM_ID, id,
7955                       GDI_CUSTOM_TYPE_ID, type_id,
7956                       GDI_IMAGE_ID, graphic,
7957                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
7958                       GDI_X, x,
7959                       GDI_Y, y,
7960                       GDI_WIDTH, gd->width,
7961                       GDI_HEIGHT, gd->height,
7962                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7963                       GDI_STATE, GD_BUTTON_UNPRESSED,
7964                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7965                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7966                       GDI_EVENT_MASK, event_mask,
7967                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7968                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
7969                       GDI_END);
7970
7971     if (gi == NULL)
7972       Fail("cannot create gadget");
7973
7974     level_editor_gadget[id] = gi;
7975     right_gadget_border[id] =
7976       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
7977   }
7978 }
7979
7980 static void CreateScrollbarGadgets(void)
7981 {
7982   int i;
7983
7984   // these values are not constant, but can change at runtime
7985   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
7986     SX + ED_SCROLL_HORIZONTAL_XPOS;
7987   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
7988     SY + ED_SCROLL_HORIZONTAL_YPOS;
7989   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
7990     ED_SCROLL_HORIZONTAL_XSIZE;
7991   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
7992     ED_SCROLL_HORIZONTAL_YSIZE;
7993   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
7994   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
7995   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
7996   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
7997
7998   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
7999     SX + ED_SCROLL_VERTICAL_XPOS;
8000   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
8001     SY + ED_SCROLL_VERTICAL_YPOS;
8002   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
8003     ED_SCROLL_VERTICAL_XSIZE;
8004   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
8005     ED_SCROLL_VERTICAL_YSIZE;
8006   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
8007   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
8008   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
8009   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
8010
8011   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
8012     PX + ED_SCROLL2_VERTICAL_XPOS;
8013   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
8014     PY + ED_SCROLL2_VERTICAL_YPOS;
8015   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
8016     ED_SCROLL2_VERTICAL_XSIZE;
8017   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
8018     ED_SCROLL2_VERTICAL_YSIZE;
8019   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
8020   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
8021   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
8022   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
8023
8024   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
8025   {
8026     int id = scrollbar_info[i].gadget_id;
8027     int type_id = scrollbar_info[i].gadget_type_id;
8028     int graphic = scrollbar_info[i].graphic;
8029     struct GraphicInfo *gd = &graphic_info[graphic];
8030     int gd_x1 = gd->src_x;
8031     int gd_y1 = gd->src_y;
8032     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8033     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8034     struct GadgetInfo *gi;
8035     int items_max, items_visible, item_position;
8036     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
8037
8038     if (type_id != i)
8039       Fail("'scrollbar_info' structure corrupted at index %d -- please fix", i);
8040
8041     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
8042     {
8043       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
8044       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
8045       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
8046     }
8047     else        // drawing area scrollbars
8048     {
8049       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
8050       {
8051         items_max = MAX(lev_fieldx + 2, ed_fieldx);
8052         items_visible = ed_fieldx;
8053         item_position = 0;
8054       }
8055       else
8056       {
8057         items_max = MAX(lev_fieldy + 2, ed_fieldy);
8058         items_visible = ed_fieldy;
8059         item_position = 0;
8060       }
8061     }
8062
8063     gi = CreateGadget(GDI_CUSTOM_ID, id,
8064                       GDI_CUSTOM_TYPE_ID, type_id,
8065                       GDI_IMAGE_ID, graphic,
8066                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
8067                       GDI_X, scrollbar_pos[i].x,
8068                       GDI_Y, scrollbar_pos[i].y,
8069                       GDI_WIDTH, scrollbar_pos[i].width,
8070                       GDI_HEIGHT, scrollbar_pos[i].height,
8071                       GDI_TYPE, scrollbar_info[i].type,
8072                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
8073                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8074                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
8075                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
8076                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
8077                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
8078                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
8079                       GDI_STATE, GD_BUTTON_UNPRESSED,
8080                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8081                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8082                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8083                       GDI_EVENT_MASK, event_mask,
8084                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8085                       GDI_CALLBACK_ACTION, HandleControlButtons,
8086                       GDI_END);
8087
8088     if (gi == NULL)
8089       Fail("cannot create gadget");
8090
8091     level_editor_gadget[id] = gi;
8092   }
8093 }
8094
8095 static void CreateCheckbuttonGadgets(void)
8096 {
8097   struct GadgetInfo *gi;
8098   int i;
8099
8100   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
8101   {
8102     int id = checkbutton_info[i].gadget_id;
8103     int type_id = checkbutton_info[i].gadget_type_id;
8104     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
8105                    IMG_EDITOR_CHECKBOX);
8106     struct GraphicInfo *gd = &graphic_info[graphic];
8107     int gd_x1 = gd->src_x;
8108     int gd_y1 = gd->src_y;
8109     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8110     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8111     int gd_x1a = gd->src_x + gd->active_xoffset;
8112     int gd_y1a = gd->src_y + gd->active_yoffset;
8113     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8114     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8115     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
8116     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
8117     unsigned int event_mask = GD_EVENT_PRESSED;
8118
8119     if (type_id != i)
8120       Fail("'checkbutton_info' structure corrupted at index %d -- please fix", i);
8121
8122     // determine horizontal position to the right of specified gadget
8123     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8124       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
8125            ED_GADGET_TEXT_DISTANCE);
8126
8127     // determine horizontal offset for leading text
8128     if (checkbutton_info[i].text_left != NULL)
8129       x += getTextWidthForGadget(checkbutton_info[i].text_left);
8130
8131     gi = CreateGadget(GDI_CUSTOM_ID, id,
8132                       GDI_CUSTOM_TYPE_ID, type_id,
8133                       GDI_IMAGE_ID, graphic,
8134                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
8135                       GDI_X, x,
8136                       GDI_Y, y,
8137                       GDI_WIDTH, gd->width,
8138                       GDI_HEIGHT, gd->height,
8139                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
8140                       GDI_CHECKED, *checkbutton_info[i].value,
8141                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8142                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8143                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8144                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8145                       GDI_EVENT_MASK, event_mask,
8146                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8147                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
8148                       GDI_END);
8149
8150     if (gi == NULL)
8151       Fail("cannot create gadget");
8152
8153     level_editor_gadget[id] = gi;
8154     right_gadget_border[id] =
8155       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
8156   }
8157 }
8158
8159 static void CreateRadiobuttonGadgets(void)
8160 {
8161   int graphic = IMG_EDITOR_RADIOBUTTON;
8162   struct GraphicInfo *gd = &graphic_info[graphic];
8163   int gd_x1 = gd->src_x;
8164   int gd_y1 = gd->src_y;
8165   int gd_x2 = gd->src_x + gd->pressed_xoffset;
8166   int gd_y2 = gd->src_y + gd->pressed_yoffset;
8167   int gd_x1a = gd->src_x + gd->active_xoffset;
8168   int gd_y1a = gd->src_y + gd->active_yoffset;
8169   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8170   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8171   struct GadgetInfo *gi;
8172   int i;
8173
8174   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
8175   {
8176     int id = radiobutton_info[i].gadget_id;
8177     int type_id = radiobutton_info[i].gadget_type_id;
8178     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
8179     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
8180     unsigned int event_mask = GD_EVENT_PRESSED;
8181
8182     if (type_id != i)
8183       Fail("'radiobutton_info' structure corrupted at index %d -- please fix", i);
8184
8185     int checked =
8186       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
8187
8188     // determine horizontal position to the right of specified gadget
8189     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
8190       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
8191            ED_GADGET_TEXT_DISTANCE);
8192
8193     // determine horizontal offset for leading text
8194     if (radiobutton_info[i].text_left != NULL)
8195       x += getTextWidthForGadget(radiobutton_info[i].text_left);
8196
8197     gi = CreateGadget(GDI_CUSTOM_ID, id,
8198                       GDI_CUSTOM_TYPE_ID, type_id,
8199                       GDI_IMAGE_ID, graphic,
8200                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
8201                       GDI_X, x,
8202                       GDI_Y, y,
8203                       GDI_WIDTH, gd->width,
8204                       GDI_HEIGHT, gd->height,
8205                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
8206                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
8207                       GDI_CHECKED, checked,
8208                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8209                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8210                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8211                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8212                       GDI_EVENT_MASK, event_mask,
8213                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8214                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
8215                       GDI_END);
8216
8217     if (gi == NULL)
8218       Fail("cannot create gadget");
8219
8220     level_editor_gadget[id] = gi;
8221     right_gadget_border[id] =
8222       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
8223   }
8224 }
8225
8226 void CreateLevelEditorGadgets(void)
8227 {
8228   // force EDITOR font inside level editor
8229   SetFontStatus(GAME_MODE_EDITOR);
8230
8231   // these values are not constant, but can change at runtime
8232   ed_fieldx = MAX_ED_FIELDX - 1;
8233   ed_fieldy = MAX_ED_FIELDY - 1;
8234
8235   num_editor_gadgets = NUM_EDITOR_GADGETS;
8236
8237   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
8238
8239   level_editor_gadget =
8240     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
8241   right_gadget_border =
8242     checked_calloc(num_editor_gadgets * sizeof(int));
8243
8244   // set number of empty (padding) element buttons to maximum number of buttons
8245   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
8246
8247   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
8248   editor_el_empty_ptr = editor_el_empty;
8249
8250   use_permanent_palette = !editor.palette.show_as_separate_screen;
8251
8252   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
8253
8254   ReinitializeElementList();
8255
8256   CreateControlButtons();
8257   CreateScrollbarGadgets();
8258
8259   // order of function calls is important because of cross-references
8260   CreateCheckbuttonGadgets();
8261   CreateCounterButtons();
8262   CreateRadiobuttonGadgets();
8263   CreateTextInputGadgets();
8264   CreateTextAreaGadgets();
8265   CreateSelectboxGadgets();
8266   CreateGraphicbuttonGadgets();
8267   CreateTextbuttonGadgets();
8268   CreateDrawingAreas();
8269
8270   ResetFontStatus();
8271 }
8272
8273 void FreeLevelEditorGadgets(void)
8274 {
8275   int i;
8276
8277   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
8278
8279   for (i = 0; i < num_editor_gadgets; i++)
8280   {
8281     FreeGadget(level_editor_gadget[i]);
8282
8283     level_editor_gadget[i] = NULL;
8284   }
8285
8286   checked_free(level_editor_gadget);
8287   checked_free(right_gadget_border);
8288
8289   checked_free(editor_el_empty);
8290 }
8291
8292 static void MapCounterButtons(int id)
8293 {
8294   int font_nr = FONT_TEXT_1;
8295   int font_height = getFontHeight(font_nr);
8296   int gadget_id_down = counterbutton_info[id].gadget_id_down;
8297   int gadget_id_text = counterbutton_info[id].gadget_id_text;
8298   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
8299   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
8300   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
8301   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
8302   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
8303   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8304   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8305   int yoffset = (gi_down->height - font_height) / 2;
8306   int x_left = gi_down->x - xoffset_left;
8307   int x_right;  // set after gadget position was modified
8308   int y_above = gi_down->y - yoffset_above;
8309   int x = gi_down->x;
8310   int y;        // set after gadget position was modified
8311
8312   // counter limits must be changed first to prevent value truncation
8313   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
8314                             counterbutton_info[id].max_value);
8315
8316   // right text position might have changed after setting position above
8317   x_right = gi_up->x + gi_up->width + xoffset_right;
8318
8319   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
8320
8321   // set position for counter gadgets with dynamically determined position
8322   if (id != ED_COUNTER_ID_SELECT_LEVEL)
8323   {
8324     ModifyGadget(gi_down, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8325     ModifyGadget(gi_text, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8326     ModifyGadget(gi_up,   GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8327   }
8328
8329   // vertical position might have changed after setting position above
8330   y = gi_up->y + yoffset;
8331
8332   if (counterbutton_info[id].text_above)
8333     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
8334
8335   if (counterbutton_info[id].text_left)
8336     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
8337
8338   if (counterbutton_info[id].text_right)
8339     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
8340
8341   MapGadget(gi_down);
8342   MapGadget(gi_text);
8343   MapGadget(gi_up);
8344 }
8345
8346 static void MapControlButtons(void)
8347 {
8348   int counter_id;
8349   int i;
8350
8351   // map toolbox buttons (excluding special CE toolbox buttons)
8352   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
8353     MapGadget(level_editor_gadget[i]);
8354
8355   // map toolbox buttons (element properties buttons)
8356   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
8357     MapGadget(level_editor_gadget[i]);
8358
8359   if (use_permanent_palette)
8360   {
8361     // map buttons to select elements
8362     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
8363       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
8364     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
8365     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
8366     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
8367   }
8368
8369   // map buttons to select level
8370   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
8371   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
8372   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
8373   MapCounterButtons(counter_id);
8374 }
8375
8376 static void MapDrawingArea(int id)
8377 {
8378   int font_nr = FONT_TEXT_1;
8379   int font_height = getFontHeight(font_nr);
8380   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
8381   int area_xsize = gi->drawing.area_xsize;
8382   int area_ysize = gi->drawing.area_ysize;
8383   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8384   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
8385   int x_left  = gi->x - xoffset_left - ED_DRAWINGAREA_BORDER_SIZE;
8386   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
8387   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
8388   int x_below = gi->x + (gi->width - xoffset_below) / 2;
8389   int y_side  = gi->y + (gi->height - font_height) / 2;
8390   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
8391   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
8392
8393   if (drawingarea_info[id].text_left)
8394     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
8395
8396   if (drawingarea_info[id].text_right)
8397     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
8398
8399   if (drawingarea_info[id].text_above)
8400     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
8401
8402   if (drawingarea_info[id].text_below)
8403     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
8404
8405   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
8406   {
8407     DrawElementBorder(gi->x, gi->y,
8408                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
8409                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
8410
8411     DrawDrawingArea(id);
8412   }
8413
8414   MapGadget(gi);
8415 }
8416
8417 static void MapTextInputGadget(int id)
8418 {
8419   int font_nr = FONT_TEXT_1;
8420   int font_height = getFontHeight(font_nr);
8421   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
8422   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8423   int x_above = ED_SETTINGS_X(textinput_info[id].x);
8424   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
8425
8426   if (textinput_info[id].text_above)
8427     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
8428
8429   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
8430
8431   MapGadget(gi);
8432 }
8433
8434 static void MapTextAreaGadget(int id)
8435 {
8436   int font_nr = FONT_TEXT_1;
8437   int font_height = getFontHeight(font_nr);
8438   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
8439   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8440   int x_above = ED_SETTINGS_X(textarea_info[id].x);
8441   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
8442   char *text_above = textarea_info[id].text_above;
8443
8444   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
8445     text_above = textarea_info[id].text_above_cropped;
8446
8447   if (text_above)
8448     DrawTextS(x_above, y_above, font_nr, text_above);
8449
8450   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
8451
8452   MapGadget(gi);
8453 }
8454
8455 static void MapSelectboxGadget(int id)
8456 {
8457   int font_nr = FONT_TEXT_1;
8458   int font_height = getFontHeight(font_nr);
8459   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
8460   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
8461   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8462   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8463   int yoffset = (gi->height - font_height) / 2;
8464   int x_left = gi->x - xoffset_left;
8465   int x_right = gi->x + gi->width + xoffset_right;
8466   int y_above = gi->y - yoffset_above;
8467   int x = gi->x;
8468   int y = gi->y + yoffset;
8469
8470   if (selectbox_info[id].text_above)
8471     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
8472
8473   if (selectbox_info[id].text_left)
8474     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
8475
8476   if (selectbox_info[id].text_right)
8477     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
8478
8479   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
8480
8481   MapGadget(gi);
8482 }
8483
8484 static void MapTextbuttonGadget(int id)
8485 {
8486   int font_nr = FONT_TEXT_1;
8487   int font_height = getFontHeight(font_nr);
8488   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
8489   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
8490   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8491   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8492   int yoffset = (gi->height - font_height) / 2;
8493   int x_left = gi->x - xoffset_left;
8494   int x_right = gi->x + gi->width + xoffset_right;
8495   int y_above = gi->y - yoffset_above;
8496   int x = gi->x;
8497   int y = gi->y + yoffset;
8498
8499   // only show button to delete change pages when more than minimum pages
8500   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
8501       custom_element.num_change_pages == MIN_CHANGE_PAGES)
8502     return;
8503
8504   if (textbutton_info[id].text_above)
8505     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
8506
8507   if (textbutton_info[id].text_left)
8508     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
8509
8510   if (textbutton_info[id].text_right)
8511     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
8512
8513   MapGadget(gi);
8514 }
8515
8516 static void MapGraphicbuttonGadget(int id)
8517 {
8518   int font_nr = FONT_TEXT_1;
8519   int font_height = getFontHeight(font_nr);
8520   struct GadgetInfo *gi = level_editor_gadget[graphicbutton_info[id].gadget_id];
8521   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
8522   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8523   int yoffset = (gi->height - font_height) / 2;
8524   int x_left = gi->x - xoffset_left;
8525   int x_right = gi->x + gi->width + xoffset_right;
8526   int y = gi->y + yoffset;
8527
8528   if (graphicbutton_info[id].text_left)
8529     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
8530
8531   if (graphicbutton_info[id].text_right)
8532     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
8533
8534   MapGadget(gi);
8535 }
8536
8537 static void MapRadiobuttonGadget(int id)
8538 {
8539   int font_nr = FONT_TEXT_1;
8540   int font_height = getFontHeight(font_nr);
8541   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
8542   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8543   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8544   int yoffset = (gi->height - font_height) / 2;
8545   int x_left = gi->x - xoffset_left;
8546   int x_right = gi->x + gi->width + xoffset_right;
8547   int y = gi->y + yoffset;
8548   boolean checked =
8549     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
8550
8551   if (radiobutton_info[id].text_left)
8552     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
8553
8554   if (radiobutton_info[id].text_right)
8555     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
8556
8557   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
8558
8559   MapGadget(gi);
8560 }
8561
8562 static void MapCheckbuttonGadget(int id)
8563 {
8564   int font_nr = FONT_TEXT_1;
8565   int font_height = getFontHeight(font_nr);
8566   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
8567   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8568   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8569   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8570   int yoffset = (gi->height - font_height) / 2;
8571   int y_above = gi->y - yoffset_above;
8572   int x = gi->x;
8573   int x_left, x_right, y;       // set after gadget position was modified
8574
8575   // set position for gadgets with dynamically determined position
8576   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
8577     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x), GDI_END);
8578   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
8579
8580   x_left = gi->x - xoffset_left;
8581   x_right = gi->x + gi->width + xoffset_right;
8582   y = gi->y + yoffset;
8583
8584   if (checkbutton_info[id].text_above)
8585     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
8586
8587   if (checkbutton_info[id].text_left)
8588     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
8589
8590   if (checkbutton_info[id].text_right)
8591     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
8592
8593   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
8594
8595   MapGadget(gi);
8596 }
8597
8598 static void MapMainDrawingArea(void)
8599 {
8600   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
8601   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
8602   int i;
8603
8604   if (suppressBorderElement())
8605   {
8606     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
8607     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
8608   }
8609
8610   for (i = ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
8611   {
8612     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
8613           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
8614          no_horizontal_scrollbar) ||
8615         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
8616           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
8617          no_vertical_scrollbar))
8618       continue;
8619
8620     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
8621   }
8622
8623   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
8624   {
8625     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
8626         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
8627       continue;
8628
8629     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
8630   }
8631
8632   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
8633 }
8634
8635 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
8636 {
8637   int i;
8638
8639   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
8640   {
8641     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
8642         i == GADGET_ID_CUSTOM_COPY_TO ||
8643         i == GADGET_ID_CUSTOM_EXCHANGE ||
8644         i == GADGET_ID_CUSTOM_COPY ||
8645         i == GADGET_ID_CUSTOM_PASTE)
8646     {
8647       if (map)
8648         MapGadget(level_editor_gadget[i]);
8649       else
8650         UnmapGadget(level_editor_gadget[i]);
8651     }
8652   }
8653 }
8654
8655 static void MapLevelEditorToolboxCustomGadgets(void)
8656 {
8657   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
8658 }
8659
8660 static void MapLevelEditorToolboxCustomGadgetsIfNeeded(void)
8661 {
8662   if (IS_CUSTOM_ELEMENT(properties_element) ||
8663       IS_GROUP_ELEMENT(properties_element) ||
8664       IS_EMPTY_ELEMENT(properties_element))
8665     MapLevelEditorToolboxCustomGadgets();
8666 }
8667
8668 static void UnmapLevelEditorToolboxCustomGadgets(void)
8669 {
8670   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
8671 }
8672
8673 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
8674 {
8675   int i;
8676
8677   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
8678   {
8679     if (i != GADGET_ID_SINGLE_ITEMS &&
8680         i != GADGET_ID_PICK_ELEMENT)
8681     {
8682       struct GadgetInfo *gi = level_editor_gadget[i];
8683
8684       if (map)
8685       {
8686         MapGadget(gi);
8687       }
8688       else
8689       {
8690         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
8691         struct GraphicInfo *gd = &graphic_info[graphic];
8692
8693         UnmapGadget(gi);
8694
8695         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
8696                    gi->width, gi->height, gi->x, gi->y);
8697
8698         redraw_mask |= REDRAW_DOOR_3;
8699       }
8700     }
8701   }
8702 }
8703
8704 static void MapLevelEditorToolboxDrawingGadgets(void)
8705 {
8706   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
8707 }
8708
8709 static void UnmapLevelEditorToolboxDrawingGadgets(void)
8710 {
8711   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
8712 }
8713
8714 static void UnmapDrawingArea(int id)
8715 {
8716   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
8717 }
8718
8719 static void UnmapLevelEditorFieldGadgets(void)
8720 {
8721   int i;
8722
8723   for (i = 0; i < num_editor_gadgets; i++)
8724     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
8725                           level_editor_gadget[i]->y))
8726       UnmapGadget(level_editor_gadget[i]);
8727 }
8728
8729 void UnmapLevelEditorGadgets(void)
8730 {
8731   int i;
8732
8733   for (i = 0; i < num_editor_gadgets; i++)
8734     UnmapGadget(level_editor_gadget[i]);
8735 }
8736
8737 static void ResetUndoBuffer(void)
8738 {
8739   undo_buffer_position = -1;
8740   undo_buffer_steps = -1;
8741   redo_buffer_steps = 0;
8742
8743   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
8744
8745   level.changed = FALSE;
8746 }
8747
8748 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
8749 {
8750   if (remap_toolbox_gadgets)
8751   {
8752     ModifyEditorElementList();
8753     RedrawDrawingElements();
8754   }
8755
8756   if (edit_mode == ED_MODE_LEVELCONFIG)
8757     DrawLevelConfigWindow();
8758   else if (edit_mode == ED_MODE_PROPERTIES)
8759     DrawPropertiesWindow();
8760   else if (edit_mode == ED_MODE_PALETTE)
8761     DrawPaletteWindow();
8762   else  // edit_mode == ED_MODE_DRAWING
8763     DrawDrawingWindowExt(remap_toolbox_gadgets);
8764 }
8765
8766 static void DrawEditModeWindow(void)
8767 {
8768   DrawEditModeWindowExt(TRUE);
8769 }
8770
8771 static void DrawEditModeWindow_PlayfieldOnly(void)
8772 {
8773   DrawEditModeWindowExt(FALSE);
8774 }
8775
8776 static void ChangeEditModeWindow(int new_edit_mode)
8777 {
8778   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
8779
8780   DrawEditModeWindow();
8781 }
8782
8783 static boolean LevelChanged(void)
8784 {
8785   boolean field_changed = FALSE;
8786   int x, y;
8787
8788   for (y = 0; y < lev_fieldy; y++)
8789     for (x = 0; x < lev_fieldx; x++)
8790       if (Tile[x][y] != level.field[x][y])
8791         field_changed = TRUE;
8792
8793   return (level.changed || field_changed);
8794 }
8795
8796 static boolean PrepareSavingIntoPersonalLevelSet(void)
8797 {
8798   static LevelDirTree *last_copied_leveldir = NULL;
8799   static LevelDirTree *last_written_leveldir = NULL;
8800   static int last_copied_level_nr = -1;
8801   static int last_written_level_nr = -1;
8802   LevelDirTree *leveldir_former = leveldir_current;
8803   int level_nr_former = level_nr;
8804   int new_level_nr;
8805
8806   // remember last mod/save so that for current session, we write
8807   // back to the same personal copy, asking only about overwrite.
8808   if (leveldir_current == last_copied_leveldir &&
8809       level_nr == last_copied_level_nr)
8810   {
8811     // "cd" to personal level set dir (as used when writing last copy)
8812     leveldir_current = last_written_leveldir;
8813     level_nr = last_written_level_nr;
8814
8815     return TRUE;
8816   }
8817
8818   if (!Request("This level is read-only! "
8819                "Save into personal level set?", REQ_ASK))
8820     return FALSE;
8821
8822   // "cd" to personal level set dir (for writing copy the first time)
8823   leveldir_current =
8824     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
8825
8826   // this may happen if "setup.internal.create_user_levelset" is FALSE
8827   // or if file "levelinfo.conf" is missing in personal user level set
8828   if (leveldir_current == NULL)
8829   {
8830     Request("Cannot find personal level set?!", REQ_CONFIRM);
8831
8832     leveldir_current = leveldir_former;
8833
8834     return FALSE;
8835   }
8836
8837   // find unused level number
8838   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
8839   {
8840     static char *level_filename = NULL;
8841
8842     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
8843
8844     if (!fileExists(level_filename))
8845       break;
8846   }
8847
8848   last_copied_leveldir = leveldir_former;
8849   last_copied_level_nr = level_nr_former;
8850
8851   last_written_leveldir = leveldir_current;
8852   last_written_level_nr = level_nr = new_level_nr;
8853
8854   return TRUE;
8855 }
8856
8857 static void ModifyLevelConfigForSavingIntoPersonalLevelSet(char *former_name)
8858 {
8859   static char *filename_levelinfo = NULL, *mod_name = NULL;
8860   FILE *file;
8861
8862   // annotate this copy-and-mod in personal levelinfo.conf
8863   setString(&filename_levelinfo,
8864             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
8865
8866   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
8867   {
8868     fprintf(file, "\n");
8869     fprintf(file, "# level %d was modified from:\n", level_nr);
8870     fprintf(file, "# - previous level set name:    %s\n",
8871             former_name);
8872     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
8873             level.file_info.nr, level.name);
8874     fprintf(file, "# - previous author:            %s\n",
8875             level.author);
8876     fprintf(file, "# - previous save date:         ");
8877
8878     if (level.creation_date.src == DATE_SRC_LEVELFILE)
8879     {
8880       fprintf(file, "%04d-%02d-%02d\n",
8881               level.creation_date.year,
8882               level.creation_date.month,
8883               level.creation_date.day);
8884     }
8885     else
8886     {
8887       fprintf(file, "not recorded\n");
8888     }
8889
8890     fclose(file);
8891   }
8892
8893   if (level_nr > leveldir_current->last_level)
8894     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
8895
8896   // else: allow the save even if annotation failed
8897
8898   // now... spray graffiti on the old level vital statistics
8899   // user can change these; just trying to set a good baseline
8900
8901   // don't truncate names for fear of making offensive or silly:
8902   // long-named original author only recorded in levelinfo.conf.
8903   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
8904   if (!strEqual(level.author, leveldir_current->author))
8905   {
8906     setString(&mod_name, getStringCat3(leveldir_current->author,
8907                                        " after ", level.author));
8908
8909     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8910       setString(&mod_name,
8911                 getStringCat2(leveldir_current->author, " (ed.)"));
8912
8913     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8914       setString(&mod_name, leveldir_current->author);
8915
8916     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
8917
8918     // less worried about truncation here
8919     setString(&mod_name, getStringCat2("Mod: ", level.name));
8920     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
8921   }
8922 }
8923
8924 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
8925                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
8926 {
8927   int x, y;
8928
8929   for (x = 0; x < lev_fieldx; x++)
8930     for (y = 0; y < lev_fieldy; y++)
8931       dst[x][y] = src[x][y];
8932 }
8933
8934 static int setSelectboxValue(int selectbox_id, int new_value)
8935 {
8936   int new_index_value = 0;
8937   int i;
8938
8939   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
8940     if (selectbox_info[selectbox_id].options[i].value == new_value)
8941       new_index_value = i;
8942
8943   *selectbox_info[selectbox_id].value =
8944     selectbox_info[selectbox_id].options[new_index_value].value;
8945
8946   return new_index_value;
8947 }
8948
8949 static void setSelectboxSpecialActionVariablesIfNeeded(void)
8950 {
8951   int i;
8952
8953   // change action mode and arg variables according to action type variable
8954   for (i = 0; action_arg_options[i].value != -1; i++)
8955   {
8956     if (action_arg_options[i].value == custom_element_change.action_type)
8957     {
8958       int mode = action_arg_options[i].mode;
8959
8960       // only change if corresponding selectbox has changed
8961       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
8962           action_arg_modes[mode])
8963         custom_element_change.action_mode = -1;
8964
8965       // only change if corresponding selectbox has changed
8966       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
8967           action_arg_options[i].options)
8968         custom_element_change.action_arg = -1;
8969
8970       break;
8971     }
8972   }
8973 }
8974
8975 static void setSelectboxSpecialActionOptions(void)
8976 {
8977   int i;
8978
8979   // change action mode and arg selectbox according to action type selectbox
8980   for (i = 0; action_arg_options[i].value != -1; i++)
8981   {
8982     if (action_arg_options[i].value == custom_element_change.action_type)
8983     {
8984       int mode = action_arg_options[i].mode;
8985
8986       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
8987                                    action_arg_modes[mode]);
8988       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
8989                                  custom_element_change.action_mode);
8990
8991       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
8992                                    action_arg_options[i].options);
8993       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
8994                                  custom_element_change.action_arg);
8995       break;
8996     }
8997   }
8998 }
8999
9000 static void copy_custom_element_settings(int element_from, int element_to)
9001 {
9002   struct ElementInfo *ei_from = &element_info[element_from];
9003   struct ElementInfo *ei_to = &element_info[element_to];
9004
9005   copyElementInfo(ei_from, ei_to);
9006 }
9007
9008 static void replace_custom_element_in_settings(int element_from,
9009                                                int element_to)
9010 {
9011   int i, j, x, y;
9012
9013   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9014   {
9015     struct ElementInfo *ei = &element_info[i];
9016
9017     for (y = 0; y < 3; y++)
9018       for (x = 0; x < 3; x++)
9019         if (ei->content.e[x][y] == element_from)
9020           ei->content.e[x][y] = element_to;
9021
9022     for (j = 0; j < ei->num_change_pages; j++)
9023     {
9024       struct ElementChangeInfo *change = &ei->change_page[j];
9025
9026       if (change->target_element == element_from)
9027         change->target_element = element_to;
9028
9029       if (change->initial_trigger_element == element_from)
9030         change->initial_trigger_element = element_to;
9031
9032       if (change->action_element == element_from)
9033         change->action_element = element_to;
9034
9035       for (y = 0; y < 3; y++)
9036         for (x = 0; x < 3; x++)
9037           if (change->target_content.e[x][y] == element_from)
9038             change->target_content.e[x][y] = element_to;
9039     }
9040
9041     if (ei->group != NULL)                              // group or internal
9042       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
9043         if (ei->group->element[j] == element_from)
9044           ei->group->element[j] = element_to;
9045   }
9046 }
9047
9048 static void replace_custom_element_in_playfield(int element_from,
9049                                                 int element_to)
9050 {
9051   int x, y;
9052
9053   for (x = 0; x < lev_fieldx; x++)
9054     for (y = 0; y < lev_fieldy; y++)
9055       if (Tile[x][y] == element_from)
9056         Tile[x][y] = element_to;
9057 }
9058
9059 static boolean CopyCustomElement(int element_old, int element_new,
9060                                  int copy_mode)
9061 {
9062   int copy_mode_orig = copy_mode;
9063
9064   if (copy_mode == GADGET_ID_CUSTOM_COPY)
9065   {
9066     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
9067                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9068     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9069   }
9070   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
9071   {
9072     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
9073                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9074     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9075
9076     level.changed = TRUE;
9077   }
9078   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
9079   {
9080     Request("Please choose custom element!", REQ_CONFIRM);
9081
9082     return FALSE;
9083   }
9084   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
9085   {
9086     Request("Please choose group element!", REQ_CONFIRM);
9087
9088     return FALSE;
9089   }
9090   else if (IS_EMPTY_ELEMENT(element_old) && !IS_EMPTY_ELEMENT(element_new))
9091   {
9092     Request("Please choose empty element!", REQ_CONFIRM);
9093
9094     return FALSE;
9095   }
9096   else
9097   {
9098     level.changed = TRUE;
9099   }
9100
9101   // when modifying custom/group element, ask for copying level template
9102   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
9103   {
9104     if (!AskToCopyAndModifyLevelTemplate())
9105       return FALSE;
9106   }
9107
9108   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
9109   {
9110     copy_custom_element_settings(element_new, element_old);
9111   }
9112   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
9113   {
9114     copy_custom_element_settings(element_old, element_new);
9115   }
9116   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
9117   {
9118     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
9119     copy_custom_element_settings(element_new, element_old);
9120     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
9121
9122     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
9123     replace_custom_element_in_settings(element_new, element_old);
9124     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
9125
9126     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
9127     replace_custom_element_in_playfield(element_new, element_old);
9128     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
9129   }
9130
9131   UpdateCustomElementGraphicGadgets();
9132   DrawPropertiesWindow();
9133
9134   return TRUE;
9135 }
9136
9137 static void CopyCustomElementPropertiesToEditor(int element)
9138 {
9139   int i;
9140   int current_change_page = element_info[element].current_change_page;
9141
9142   // dynamically (re)build selectbox for selecting change page
9143   for (i = 0; i < element_info[element].num_change_pages; i++)
9144   {
9145     sprintf(options_change_page_strings[i], "%d", i + 1);
9146
9147     options_change_page[i].value = i;
9148     options_change_page[i].text = options_change_page_strings[i];
9149   }
9150
9151   options_change_page[i].value = -1;
9152   options_change_page[i].text = NULL;
9153
9154   // needed here to initialize combined element properties
9155   InitElementPropertiesEngine(level.game_version);
9156
9157   element_info[element].change =
9158     &element_info[element].change_page[current_change_page];
9159
9160   custom_element = element_info[element];
9161   custom_element_change = *element_info[element].change;
9162
9163   // needed to initially set selectbox options for special action options
9164   setSelectboxSpecialActionOptions();
9165
9166   // needed to initially set selectbox value variables to reliable defaults
9167   for (i = 0; i < ED_NUM_SELECTBOX; i++)
9168     setSelectboxValue(i, *selectbox_info[i].value);
9169
9170   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9171     custom_element_properties[i] = HAS_PROPERTY(element, i);
9172
9173   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9174     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
9175
9176   // ---------- element settings: configure (custom elements) -----------------
9177
9178   // set accessible layer selectbox help value
9179   custom_element.access_type =
9180     (IS_WALKABLE(element) ? EP_WALKABLE :
9181      IS_PASSABLE(element) ? EP_PASSABLE :
9182      custom_element.access_type);
9183   custom_element.access_layer =
9184     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
9185      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
9186      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
9187      custom_element.access_layer);
9188   custom_element.access_protected =
9189     (IS_PROTECTED(element) ? 1 : 0);
9190   custom_element_properties[EP_ACCESSIBLE] =
9191     (IS_ACCESSIBLE_OVER(element) ||
9192      IS_ACCESSIBLE_INSIDE(element) ||
9193      IS_ACCESSIBLE_UNDER(element));
9194
9195   // set walk-to-object action selectbox help value
9196   custom_element.walk_to_action =
9197     (IS_DIGGABLE(element) ? EP_DIGGABLE :
9198      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
9199      IS_DROPPABLE(element) ? EP_DROPPABLE :
9200      IS_THROWABLE(element) ? EP_THROWABLE :
9201      IS_PUSHABLE(element) ? EP_PUSHABLE :
9202      custom_element.walk_to_action);
9203   custom_element_properties[EP_WALK_TO_OBJECT] =
9204     (IS_DIGGABLE(element) ||
9205      IS_COLLECTIBLE_ONLY(element) ||
9206      IS_DROPPABLE(element) ||
9207      IS_THROWABLE(element) ||
9208      IS_PUSHABLE(element));
9209
9210   // set smash targets selectbox help value
9211   custom_element.smash_targets =
9212     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
9213      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
9214      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
9215      custom_element.smash_targets);
9216   custom_element_properties[EP_CAN_SMASH] =
9217     (CAN_SMASH_EVERYTHING(element) ||
9218      CAN_SMASH_ENEMIES(element) ||
9219      CAN_SMASH_PLAYER(element));
9220
9221   // set deadliness selectbox help value
9222   custom_element.deadliness =
9223     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
9224      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
9225      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
9226      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
9227      custom_element.deadliness);
9228   custom_element_properties[EP_DEADLY] =
9229     (DONT_TOUCH(element) ||
9230      DONT_GET_HIT_BY(element) ||
9231      DONT_COLLIDE_WITH(element) ||
9232      DONT_RUN_INTO(element));
9233
9234   // ---------- element settings: advanced (custom elements) ------------------
9235
9236   // set "change by direct action" selectbox help value
9237   custom_element_change.direct_action =
9238     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
9239      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
9240      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
9241      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
9242      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
9243      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
9244      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
9245      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
9246      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
9247      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
9248      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
9249      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
9250      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
9251      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
9252      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
9253      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
9254      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
9255      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
9256      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
9257      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
9258      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
9259      custom_element_change.direct_action);
9260
9261   // set "change by other element action" selectbox help value
9262   custom_element_change.other_action =
9263     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
9264      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
9265      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
9266      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
9267      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
9268      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
9269      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
9270      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
9271      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
9272      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
9273      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
9274      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
9275      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
9276      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
9277      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
9278      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
9279      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
9280      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
9281      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
9282      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
9283      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
9284      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
9285      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
9286      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
9287      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
9288      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
9289      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
9290      custom_element_change.other_action);
9291 }
9292
9293 static void CopyGroupElementPropertiesToEditor(int element)
9294 {
9295   group_element_info = *element_info[element].group;
9296   custom_element = element_info[element];       // needed for description
9297 }
9298
9299 static void CopyEmptyElementPropertiesToEditor(int element)
9300 {
9301   custom_element = element_info[element];
9302 }
9303
9304 static void CopyClassicElementPropertiesToEditor(int element)
9305 {
9306   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9307     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
9308       getMoveIntoAcidProperty(&level, element);
9309
9310   if (MAYBE_DONT_COLLIDE_WITH(element))
9311     custom_element_properties[EP_DONT_COLLIDE_WITH] =
9312       getDontCollideWithProperty(&level, element);
9313 }
9314
9315 static void CopyElementPropertiesToEditor(int element)
9316 {
9317   if (IS_CUSTOM_ELEMENT(element))
9318     CopyCustomElementPropertiesToEditor(element);
9319   else if (IS_GROUP_ELEMENT(element))
9320     CopyGroupElementPropertiesToEditor(element);
9321   else if (IS_EMPTY_ELEMENT(element))
9322     CopyEmptyElementPropertiesToEditor(element);
9323   else
9324     CopyClassicElementPropertiesToEditor(element);
9325 }
9326
9327 static boolean AskToCopyAndModifyLevelTemplate(void)
9328 {
9329   if (Request("Copy and modify settings from level template?", REQ_ASK))
9330   {
9331     level.use_custom_template = FALSE;
9332
9333     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
9334                  GDI_CHECKED, FALSE, GDI_END);
9335     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
9336                  GDI_CHECKED, FALSE, GDI_END);
9337
9338     return TRUE;
9339   }
9340   else
9341   {
9342     LoadLevelTemplate(-1);      // this resets all element modifications ...
9343
9344     DrawEditModeWindow();       // ... and copies them to 'custom_element'
9345
9346     return FALSE;
9347   }
9348 }
9349
9350 static void CopyCustomElementPropertiesToGame(int element)
9351 {
9352   int i;
9353   int access_type_and_layer;
9354
9355   // mark that this custom element has been modified
9356   custom_element.modified_settings = TRUE;
9357   level.changed = TRUE;
9358
9359   if (level.use_custom_template)
9360     AskToCopyAndModifyLevelTemplate();
9361
9362   element_info[element] = custom_element;
9363   *element_info[element].change = custom_element_change;
9364
9365   // ---------- element settings: configure (custom elements) -----------------
9366
9367   // set accessible property from checkbox and selectbox
9368   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
9369   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
9370   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
9371   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
9372   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
9373   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
9374   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
9375                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
9376                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
9377   custom_element_properties[access_type_and_layer] =
9378     custom_element_properties[EP_ACCESSIBLE];
9379   custom_element_properties[EP_PROTECTED] =
9380     (custom_element.access_protected != 0 &&
9381      custom_element_properties[EP_ACCESSIBLE]);
9382
9383   // set walk-to-object property from checkbox and selectbox
9384   custom_element_properties[EP_DIGGABLE] = FALSE;
9385   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
9386   custom_element_properties[EP_DROPPABLE] = FALSE;
9387   custom_element_properties[EP_THROWABLE] = FALSE;
9388   custom_element_properties[EP_PUSHABLE] = FALSE;
9389   custom_element_properties[custom_element.walk_to_action] =
9390     custom_element_properties[EP_WALK_TO_OBJECT];
9391
9392   // set smash property from checkbox and selectbox
9393   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
9394   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
9395   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
9396   custom_element_properties[custom_element.smash_targets] =
9397     custom_element_properties[EP_CAN_SMASH];
9398
9399   // set deadliness property from checkbox and selectbox
9400   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
9401   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
9402   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
9403   custom_element_properties[EP_DONT_TOUCH] = FALSE;
9404   custom_element_properties[custom_element.deadliness] =
9405     custom_element_properties[EP_DEADLY];
9406
9407   // ---------- element settings: advanced (custom elements) ------------------
9408
9409   // set player change event from checkbox and selectbox
9410   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
9411   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
9412   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
9413   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
9414   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
9415   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
9416   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
9417   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
9418   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
9419   custom_element_change_events[CE_SWITCHED] = FALSE;
9420   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
9421   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
9422   custom_element_change_events[CE_BLOCKED] = FALSE;
9423   custom_element_change_events[CE_IMPACT] = FALSE;
9424   custom_element_change_events[CE_SMASHED] = FALSE;
9425   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
9426   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
9427   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
9428   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
9429   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
9430   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
9431   custom_element_change_events[custom_element_change.direct_action] =
9432     custom_element_change_events[CE_BY_DIRECT_ACTION];
9433
9434   // set other element action change event from checkbox and selectbox
9435   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
9436   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
9437   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
9438   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
9439   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
9440   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
9441   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
9442   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
9443   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
9444   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
9445   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
9446   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
9447   custom_element_change_events[CE_TOUCHING_X] = FALSE;
9448   custom_element_change_events[CE_HITTING_X] = FALSE;
9449   custom_element_change_events[CE_DIGGING_X] = FALSE;
9450   custom_element_change_events[CE_HIT_BY_X] = FALSE;
9451   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
9452   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
9453   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
9454   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
9455   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
9456   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
9457   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
9458   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
9459   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
9460   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
9461   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
9462   custom_element_change_events[custom_element_change.other_action] =
9463     custom_element_change_events[CE_BY_OTHER_ACTION];
9464
9465   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9466     SET_PROPERTY(element, i, custom_element_properties[i]);
9467
9468   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9469     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
9470
9471   // copy change events also to special level editor variable
9472   custom_element = element_info[element];
9473   custom_element_change = *element_info[element].change;
9474
9475   // needed here to restore runtime value "element_info[element].gfx_element"
9476   InitElementPropertiesGfxElement();
9477 }
9478
9479 static void CopyGroupElementPropertiesToGame(int element)
9480 {
9481   // mark that this group element has been modified
9482   custom_element.modified_settings = TRUE;
9483   level.changed = TRUE;
9484
9485   if (level.use_custom_template)
9486     AskToCopyAndModifyLevelTemplate();
9487
9488   element_info[element] = custom_element;
9489   *element_info[element].group = group_element_info;
9490
9491   // needed here to restore runtime value "element_info[element].gfx_element"
9492   InitElementPropertiesGfxElement();
9493 }
9494
9495 static void CopyEmptyElementPropertiesToGame(int element)
9496 {
9497   // mark that this empty element has been modified
9498   custom_element.modified_settings = TRUE;
9499   level.changed = TRUE;
9500
9501   if (level.use_custom_template)
9502     AskToCopyAndModifyLevelTemplate();
9503
9504   element_info[element] = custom_element;
9505
9506   // needed here to restore runtime value "element_info[element].gfx_element"
9507   InitElementPropertiesGfxElement();
9508 }
9509
9510 static void CopyClassicElementPropertiesToGame(int element)
9511 {
9512   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9513     setMoveIntoAcidProperty(&level, element,
9514                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
9515
9516   if (MAYBE_DONT_COLLIDE_WITH(element))
9517     setDontCollideWithProperty(&level, element,
9518                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
9519 }
9520
9521 static void CopyElementPropertiesToGame(int element)
9522 {
9523   if (IS_CUSTOM_ELEMENT(element))
9524     CopyCustomElementPropertiesToGame(element);
9525   else if (IS_GROUP_ELEMENT(element))
9526     CopyGroupElementPropertiesToGame(element);
9527   else if (IS_EMPTY_ELEMENT(element))
9528     CopyEmptyElementPropertiesToGame(element);
9529   else
9530     CopyClassicElementPropertiesToGame(element);
9531 }
9532
9533 #if DEBUG
9534 static void CheckElementDescriptions(void)
9535 {
9536   int i;
9537
9538   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9539     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
9540       Warn("no element description file for element '%s'", EL_NAME(i));
9541 }
9542 #endif
9543
9544 static int getMaxEdFieldX(boolean has_scrollbar)
9545 {
9546   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
9547   int sxsize = SXSIZE - scrollbar_width;
9548   int max_ed_fieldx = sxsize / ed_tilesize;
9549
9550   return max_ed_fieldx;
9551 }
9552
9553 static int getMaxEdFieldY(boolean has_scrollbar)
9554 {
9555   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
9556                          INFOTEXT_YSIZE_FULL : 0);
9557   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
9558   int sysize = SYSIZE - scrollbar_height - infotext_height;
9559   int max_ed_fieldy = sysize / ed_tilesize;
9560
9561   return max_ed_fieldy;
9562 }
9563
9564 static void InitZoomLevelSettings(int zoom_tilesize)
9565 {
9566   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
9567
9568   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
9569   {
9570     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
9571     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
9572
9573     // make sure that tile size is always a power of 2
9574     ed_tilesize = (1 << log_2(ed_tilesize));
9575
9576     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9577     {
9578       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
9579       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
9580     }
9581   }
9582
9583   last_game_engine_type = level.game_engine_type;
9584
9585   // limit zoom tilesize by upper and lower bound
9586   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
9587
9588   // store zoom tilesize in auto setup file only if it was manually changed
9589   if (zoom_tilesize != -1)
9590     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
9591
9592   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
9593   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
9594 }
9595
9596 static void InitDrawingElements(void)
9597 {
9598   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
9599
9600   if (level.game_engine_type == game_engine_type_last)
9601     return;
9602
9603   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
9604   {
9605     new_element1 = EL_BD_WALL;
9606     new_element2 = EL_EMPTY;
9607     new_element3 = EL_BD_SAND;
9608   }
9609   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
9610   {
9611     new_element1 = EL_SP_CHIP_SINGLE;
9612     new_element2 = EL_EMPTY;
9613     new_element3 = EL_SP_BASE;
9614   }
9615   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9616   {
9617     new_element1 = EL_MM_MIRROR_START;
9618     new_element2 = EL_EMPTY;
9619     new_element3 = EL_MM_WOODEN_WALL;
9620   }
9621   else
9622   {
9623     new_element1 = EL_WALL;
9624     new_element2 = EL_EMPTY;
9625     new_element3 = EL_SAND;
9626   }
9627
9628   game_engine_type_last = level.game_engine_type;
9629 }
9630
9631 static void InitLevelSetInfo(void)
9632 {
9633   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
9634            "%s", leveldir_current->name);
9635   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
9636            "%s", leveldir_current->author);
9637
9638   levelset_num_levels = leveldir_current->levels;
9639
9640   levelset_use_levelset_artwork = FALSE;
9641   levelset_copy_level_template = FALSE;
9642
9643   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
9644 }
9645
9646 static void ChangeEditorToLevelSet(char *levelset_subdir)
9647 {
9648   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
9649
9650   // the previous level set might have used custom artwork
9651   ReloadCustomArtwork(0);
9652
9653   LoadLevelSetup_SeriesInfo();
9654
9655   SaveLevelSetup_LastSeries();
9656   SaveLevelSetup_SeriesInfo();
9657
9658   TapeErase();
9659
9660   LoadLevel(level_nr);
9661   LoadScore(level_nr);
9662
9663   DrawLevelEd();
9664 }
9665
9666 static boolean useEditorDoorAnimation(void)
9667 {
9668   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
9669   boolean door_1_viewport_unchanged =
9670     (vp_door_1->x      == DX     &&
9671      vp_door_1->y      == DY     &&
9672      vp_door_1->width  == DXSIZE &&
9673      vp_door_1->height == DYSIZE);
9674   boolean door_1_contains_toolbox =
9675     (EX >= DX &&
9676      EY >= DY &&
9677      EX + EXSIZE <= DX + DXSIZE &&
9678      EY + EYSIZE <= DY + DYSIZE);
9679
9680   return (door_1_viewport_unchanged && door_1_contains_toolbox);
9681 }
9682
9683 static void DrawEditorDoorBackground(int graphic, int x, int y,
9684                                      int width, int height)
9685 {
9686   struct GraphicInfo *g = &graphic_info[graphic];
9687
9688   if (g->bitmap != NULL)
9689     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
9690                MIN(width, g->width), MIN(height, g->height), x, y);
9691   else
9692     ClearRectangle(drawto, x, y, width, height);
9693 }
9694
9695 static void DrawEditorDoorContent(void)
9696 {
9697   // needed for gadgets drawn on background (like palette scrollbar)
9698   SetDoorBackgroundImage(IMG_UNDEFINED);
9699
9700   // copy default editor door content to main double buffer
9701   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
9702
9703   // draw bigger door
9704   DrawSpecialEditorDoor();
9705
9706   // draw new control window
9707   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
9708
9709   // draw all toolbox gadgets to editor doors
9710   MapControlButtons();
9711
9712   // when returning from test game to properties page, redraw toolbox gadgets
9713   if (edit_mode == ED_MODE_PROPERTIES)
9714   {
9715     UnmapLevelEditorToolboxDrawingGadgets();
9716     UnmapLevelEditorToolboxCustomGadgets();
9717
9718     MapLevelEditorToolboxCustomGadgetsIfNeeded();
9719   }
9720
9721   // draw all palette gadgets to editor doors
9722   ModifyEditorElementList();
9723   RedrawDrawingElements();
9724
9725   // copy actual editor door content to door double buffer for OpenDoor()
9726   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
9727 }
9728
9729 void DrawLevelEd(void)
9730 {
9731   int fade_mask = REDRAW_FIELD;
9732
9733   FadeSoundsAndMusic();
9734
9735   if (CheckFadeAll())
9736     fade_mask = REDRAW_ALL;
9737
9738   FadeOut(fade_mask);
9739
9740   // needed if different viewport properties defined for editor
9741   ChangeViewportPropertiesIfNeeded();
9742
9743   ClearField();
9744
9745   InitZoomLevelSettings(-1);
9746   InitDrawingElements();
9747   InitLevelSetInfo();
9748
9749 #if DEBUG
9750   CheckElementDescriptions();
9751 #endif
9752
9753   if (level_editor_test_game)
9754   {
9755     CopyPlayfield(level.field, Tile);
9756     CopyPlayfield(TileBackup, level.field);
9757
9758     level_editor_test_game = FALSE;
9759   }
9760   else
9761   {
9762     edit_mode = ED_MODE_DRAWING;
9763     edit_mode_levelconfig = ED_MODE_LEVELCONFIG_LEVEL;
9764     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
9765
9766     ResetUndoBuffer();
9767
9768     level_xpos = -1;
9769     level_ypos = -1;
9770   }
9771
9772   // redraw_mask |= REDRAW_ALL;
9773
9774   FreeLevelEditorGadgets();
9775   CreateLevelEditorGadgets();
9776
9777   ReinitializeElementList();            // update dynamic level element list
9778   ReinitializeElementListButtons();     // custom element may look different
9779
9780   InitElementPropertiesGfxElement();
9781
9782   UnmapAllGadgets();
9783
9784   DrawEditModeWindow_PlayfieldOnly();
9785
9786   DrawMaskedBorder(fade_mask);
9787
9788   // use door animation if door 1 viewport is unchanged and contains toolbox
9789   if (useEditorDoorAnimation())
9790   {
9791     FadeIn(fade_mask);
9792
9793     DrawEditorDoorContent();
9794
9795     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
9796   }
9797   else
9798   {
9799     DrawEditorDoorContent();
9800
9801     FadeIn(fade_mask);
9802   }
9803
9804   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
9805 }
9806
9807 static void AdjustDrawingAreaGadgets(void)
9808 {
9809   int ed_xsize = lev_fieldx + 2;
9810   int ed_ysize = lev_fieldy + 2;
9811   int max_ed_fieldx = MAX_ED_FIELDX;
9812   int max_ed_fieldy = MAX_ED_FIELDY;
9813   boolean horizontal_scrollbar_needed;
9814   boolean vertical_scrollbar_needed;
9815   int x, y, width, height;
9816
9817   if (suppressBorderElement())
9818   {
9819     ed_xsize = lev_fieldx;
9820     ed_ysize = lev_fieldy;
9821   }
9822
9823   // check if we need any scrollbars
9824   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9825   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9826
9827   // check if we have a smaller editor field because of scrollbars
9828   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9829   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9830
9831   // check again if we now need more scrollbars because of less space
9832   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9833   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9834
9835   // check if editor field gets even smaller after adding new scrollbars
9836   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9837   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9838
9839   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
9840   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
9841
9842   x = SX + ed_fieldx * ed_tilesize;
9843   y = SY + ed_fieldy * ed_tilesize;
9844
9845   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
9846   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
9847
9848   // adjust drawing area gadget
9849   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
9850                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
9851                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
9852                GDI_END);
9853
9854   // adjust horizontal scrollbar gadgets
9855   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
9856                GDI_Y, y,
9857                GDI_END);
9858   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
9859                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
9860                GDI_Y, y,
9861                GDI_END);
9862   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
9863                GDI_Y, y,
9864                GDI_WIDTH, width,
9865                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
9866                GDI_END);
9867
9868   // adjust vertical scrollbar gadgets
9869   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
9870                GDI_X, x,
9871                GDI_END);
9872   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
9873                GDI_X, x,
9874                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
9875                GDI_END);
9876   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
9877                GDI_X, x,
9878                GDI_HEIGHT, height,
9879                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
9880                GDI_END);
9881 }
9882
9883 static void AdjustLevelScrollPosition(void)
9884 {
9885   if (level_xpos < -1)
9886     level_xpos = -1;
9887   if (level_xpos > lev_fieldx - ed_fieldx + 1)
9888     level_xpos = lev_fieldx - ed_fieldx + 1;
9889   if (lev_fieldx < ed_fieldx - 2)
9890     level_xpos = -1;
9891
9892   if (level_ypos < -1)
9893     level_ypos = -1;
9894   if (level_ypos > lev_fieldy - ed_fieldy + 1)
9895     level_ypos = lev_fieldy - ed_fieldy + 1;
9896   if (lev_fieldy < ed_fieldy - 2)
9897     level_ypos = -1;
9898
9899   if (suppressBorderElement())
9900   {
9901     level_xpos = 0;
9902     level_ypos = 0;
9903   }
9904 }
9905
9906 static void AdjustEditorScrollbar(int id)
9907 {
9908   struct GadgetInfo *gi = level_editor_gadget[id];
9909   int items_max, items_visible, item_position;
9910
9911   if (id == GADGET_ID_SCROLL_HORIZONTAL)
9912   {
9913     items_max = MAX(lev_fieldx + 2, ed_fieldx);
9914     items_visible = ed_fieldx;
9915     item_position = level_xpos + 1;
9916   }
9917   else
9918   {
9919     items_max = MAX(lev_fieldy + 2, ed_fieldy);
9920     items_visible = ed_fieldy;
9921     item_position = level_ypos + 1;
9922   }
9923
9924   if (item_position > items_max - items_visible)
9925     item_position = items_max - items_visible;
9926
9927   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9928                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9929 }
9930
9931 static void AdjustElementListScrollbar(void)
9932 {
9933   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
9934   int items_max, items_visible, item_position;
9935
9936   // correct position of element list scrollbar
9937   if (element_shift < 0)
9938     element_shift = 0;
9939   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
9940     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
9941
9942   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
9943   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
9944   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
9945
9946   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9947                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
9948                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9949 }
9950
9951 static void ModifyEditorCounterValue(int counter_id, int new_value)
9952 {
9953   int *counter_value = counterbutton_info[counter_id].value;
9954   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9955   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9956
9957   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
9958
9959   if (counter_value != NULL)
9960     *counter_value = gi->textinput.number_value;
9961 }
9962
9963 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
9964 {
9965   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9966   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9967
9968   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
9969
9970   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
9971       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
9972   {
9973     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
9974     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
9975
9976     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
9977     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
9978                  GDI_END);
9979   }
9980 }
9981
9982 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
9983 {
9984   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9985   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9986   int new_index_value = setSelectboxValue(selectbox_id, new_value);
9987
9988   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
9989 }
9990
9991 static void ModifyEditorSelectboxOptions(int selectbox_id,
9992                                          struct ValueTextInfo *options)
9993 {
9994   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9995   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9996
9997   selectbox_info[selectbox_id].options = options;
9998
9999   // set index to zero -- list may be shorter now (correct later, if needed)
10000   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
10001                GDI_SELECTBOX_OPTIONS, options, GDI_END);
10002 }
10003
10004 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
10005 {
10006   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
10007   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10008
10009   drawingarea_info[drawingarea_id].area_xsize = xsize;
10010   drawingarea_info[drawingarea_id].area_ysize = ysize;
10011
10012   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
10013 }
10014
10015 static void ModifyEditorElementList(void)
10016 {
10017   int i;
10018
10019   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
10020     return;
10021
10022   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
10023   {
10024     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
10025     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10026     struct GadgetDesign *gd = &gi->deco.design;
10027     int element = editor_elements[element_shift + i];
10028     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
10029
10030     UnmapGadget(gi);
10031
10032     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
10033
10034     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
10035
10036     MapGadget(gi);
10037   }
10038 }
10039
10040 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
10041 {
10042   int graphic = el2edimg(element);
10043   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
10044
10045   if (pos->x == -1 &&
10046       pos->y == -1)
10047     return;
10048
10049   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
10050 }
10051
10052 static void ModifyDrawingElementButton(int element, int id)
10053 {
10054   struct GadgetInfo *gi = level_editor_gadget[id];
10055   Bitmap *deco_bitmap;
10056   int deco_x, deco_y;
10057   int tile_size = gi->deco.width;
10058
10059   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
10060
10061   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
10062 }
10063
10064 static void PickDrawingElement(int button, int element)
10065 {
10066   struct
10067   {
10068     int *new_element;
10069     struct XYTileSize *pos;
10070     int id;
10071   } de, drawing_elements[] =
10072   {
10073     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
10074     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
10075     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
10076   };
10077
10078   if (button < 1 || button > 3)
10079     return;
10080
10081   if (IS_MM_WALL(element))
10082     element = map_mm_wall_element(element);
10083
10084   de = drawing_elements[button - 1];
10085
10086   *de.new_element = element;    // update global drawing element variable
10087
10088   DrawDrawingElementGraphic(element, de.pos);
10089   ModifyDrawingElementButton(element, de.id);
10090
10091   redraw_mask |= REDRAW_DOOR_1;
10092 }
10093
10094 static void RedrawDrawingElements(void)
10095 {
10096   PickDrawingElement(1, new_element1);
10097   PickDrawingElement(2, new_element2);
10098   PickDrawingElement(3, new_element3);
10099 }
10100
10101 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
10102 {
10103   stick_element_properties_window = FALSE;
10104
10105   SetMainBackgroundImage(IMG_UNDEFINED);
10106   ClearField();
10107
10108   UnmapLevelEditorFieldGadgets();
10109
10110   AdjustDrawingAreaGadgets();
10111   AdjustLevelScrollPosition();
10112   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
10113   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
10114
10115   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10116
10117   MapMainDrawingArea();
10118
10119   if (remap_toolbox_gadgets)
10120   {
10121     UnmapLevelEditorToolboxCustomGadgets();
10122     MapLevelEditorToolboxDrawingGadgets();
10123   }
10124 }
10125
10126 static void DrawDrawingWindow(void)
10127 {
10128   DrawDrawingWindowExt(TRUE);
10129 }
10130
10131 static int getTabulatorBarWidth(void)
10132 {
10133   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10134   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
10135
10136   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
10137 }
10138
10139 static int getTabulatorBarHeight(void)
10140 {
10141   return ED_TAB_BAR_HEIGHT;
10142 }
10143
10144 static Pixel getTabulatorBarColor(void)
10145 {
10146   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10147   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10148   int gd_x = gd->x + gd_gi1->border.width / 2;
10149   int gd_y = gd->y + gd_gi1->height - 1;
10150
10151   return GetPixel(gd->bitmap, gd_x, gd_y);
10152 }
10153
10154 static void DrawLevelConfigTabulatorGadgets(void)
10155 {
10156   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10157   Pixel tab_color = getTabulatorBarColor();
10158   int id_first = ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL;
10159   int id_last  = ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR;
10160   int i;
10161
10162   // draw additional "engine" tabulator when using native BD engine
10163   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
10164     id_last = ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE;
10165
10166   for (i = id_first; i <= id_last; i++)
10167   {
10168     int gadget_id = textbutton_info[i].gadget_id;
10169     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10170     boolean active = (i != edit_mode_levelconfig);
10171
10172     // draw background line below tabulator button
10173     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10174
10175     // draw solid line below inactive tabulator buttons
10176     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10177       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10178                     ED_GADGET_TINY_DISTANCE, tab_color);
10179
10180     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10181     MapTextbuttonGadget(i);
10182   }
10183
10184   // draw little border line below tabulator buttons
10185   if (tab_color != BLACK_PIXEL)                 // black => transparent
10186     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10187                   ED_GADGET_TINY_DISTANCE,
10188                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10189 }
10190
10191 static void DrawPropertiesTabulatorGadgets(void)
10192 {
10193   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10194   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10195   int gd_x = gd->x + gd_gi1->border.width / 2;
10196   int gd_y = gd->y + gd_gi1->height - 1;
10197   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10198   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
10199   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
10200   int i;
10201
10202   // draw two config tabulators for player elements
10203   if (IS_PLAYER_ELEMENT(properties_element))
10204     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
10205
10206   // draw two config and one "change" tabulator for custom elements
10207   if (IS_CUSTOM_ELEMENT(properties_element))
10208     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
10209
10210   for (i = id_first; i <= id_last; i++)
10211   {
10212     int gadget_id = textbutton_info[i].gadget_id;
10213     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10214     boolean active = (i != edit_mode_properties);
10215
10216     // use "config 1" and "config 2" instead of "config" for players and CEs
10217     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
10218         (IS_PLAYER_ELEMENT(properties_element) ||
10219          IS_CUSTOM_ELEMENT(properties_element)))
10220       continue;
10221
10222     // draw background line below tabulator button
10223     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10224
10225     // draw solid line below inactive tabulator buttons
10226     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10227       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10228                     ED_GADGET_TINY_DISTANCE, tab_color);
10229
10230     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10231     MapTextbuttonGadget(i);
10232   }
10233
10234   // draw little border line below tabulator buttons
10235   if (tab_color != BLACK_PIXEL)                 // black => transparent
10236     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10237                   ED_GADGET_TINY_DISTANCE,
10238                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10239 }
10240
10241 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
10242 {
10243   DrawText(SX + xpos, SY + ypos, text, font_nr);
10244 }
10245
10246 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
10247                                            int xpos, int ypos)
10248 {
10249   int font_width = getFontWidth(font_nr);
10250   int font_height = getFontHeight(font_nr);
10251   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
10252   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
10253
10254   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
10255                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
10256                       TRUE, FALSE, FALSE);
10257 }
10258
10259 static void DrawLevelConfigLevel(void)
10260 {
10261   int i;
10262
10263   // draw counter gadgets
10264   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
10265     MapCounterButtons(i);
10266
10267   // draw checkbutton gadgets
10268   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
10269     MapCheckbuttonGadget(i);
10270
10271   // draw selectbox gadgets
10272   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
10273     MapSelectboxGadget(i);
10274
10275   // draw text input gadgets
10276   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
10277     MapTextInputGadget(i);
10278 }
10279
10280 static char *getLevelSubdirFromSaveMode(int save_mode)
10281 {
10282   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
10283     return getNewUserLevelSubdir();
10284
10285   return leveldir_current->subdir;
10286 }
10287
10288 static void DrawLevelConfigLevelSet_DirectoryInfo(void)
10289 {
10290   char *directory_text = "Level set directory:";
10291   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
10292   int font1_nr = FONT_TEXT_1;
10293   int font2_nr = FONT_TEXT_2;
10294   int font1_height = getFontHeight(font1_nr);
10295   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
10296   int x = ED_LEVEL_SETTINGS_X(0);
10297   int y = ED_LEVEL_SETTINGS_Y(6);
10298
10299   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
10300   PrintInfoText(directory_name, font2_nr, x, y);
10301 }
10302
10303 static void DrawLevelConfigLevelSet(void)
10304 {
10305   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
10306   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
10307   int i;
10308
10309   // draw counter gadgets
10310   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
10311     MapCounterButtons(i);
10312
10313   // draw checkbutton gadgets
10314   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
10315   {
10316     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
10317         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
10318         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
10319       continue;
10320
10321     MapCheckbuttonGadget(i);
10322   }
10323
10324   // draw selectbox gadgets
10325   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
10326     MapSelectboxGadget(i);
10327
10328   // draw text input gadgets
10329   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
10330     MapTextInputGadget(i);
10331
10332   // draw textbutton gadgets
10333   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
10334
10335   // draw info text
10336   DrawLevelConfigLevelSet_DirectoryInfo();
10337 }
10338
10339 static void DrawLevelConfigEditor(void)
10340 {
10341   int i;
10342
10343   // draw counter gadgets
10344   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
10345     MapCounterButtons(i);
10346
10347   // draw checkbutton gadgets
10348   for (i = ED_CHECKBUTTON_ID_EDITOR_FIRST; i <= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
10349     MapCheckbuttonGadget(i);
10350
10351   // draw radiobutton gadgets
10352   for (i = ED_RADIOBUTTON_ID_EDITOR_FIRST; i <= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
10353     MapRadiobuttonGadget(i);
10354
10355   // draw drawing area
10356   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
10357
10358   // draw textbutton gadgets
10359   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
10360 }
10361
10362 static void DrawLevelConfigEngine(void)
10363 {
10364   int i;
10365
10366   // draw counter gadgets
10367   if (level.bd_scheduling_type == GD_SCHEDULING_MILLISECONDS)
10368   {
10369     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_MS);
10370     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES);
10371   }
10372   else
10373   {
10374     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_C64);
10375     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS);
10376   }
10377
10378   // draw checkbutton gadgets
10379   for (i = ED_CHECKBUTTON_ID_ENGINE_FIRST; i <= ED_CHECKBUTTON_ID_ENGINE_LAST; i++)
10380     MapCheckbuttonGadget(i);
10381
10382   // draw selectbox gadgets
10383   for (i = ED_SELECTBOX_ID_ENGINE_FIRST; i <= ED_SELECTBOX_ID_ENGINE_LAST; i++)
10384     MapSelectboxGadget(i);
10385 }
10386
10387 static void DrawLevelConfigWindow(void)
10388 {
10389   char *text = "Global Settings";
10390   int font_nr = FONT_TITLE_1;
10391   struct MenuPosInfo *pos = &editor.settings.headline;
10392   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
10393   int sy = SY + pos->y;
10394
10395   stick_element_properties_window = FALSE;
10396
10397   SetAutomaticNumberOfGemsNeeded();
10398
10399   UnmapLevelEditorFieldGadgets();
10400
10401   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10402   ClearField();
10403
10404   DrawText(sx, sy, text, font_nr);
10405
10406   DrawLevelConfigTabulatorGadgets();
10407
10408   if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVEL)
10409     DrawLevelConfigLevel();
10410   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVELSET)
10411     DrawLevelConfigLevelSet();
10412   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_EDITOR)
10413     DrawLevelConfigEditor();
10414   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_ENGINE)
10415     DrawLevelConfigEngine();
10416 }
10417
10418 static void DrawCustomContentArea(void)
10419 {
10420   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
10421   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10422   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
10423   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
10424   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
10425   int xoffset = ED_GADGET_SPACE_DISTANCE;
10426
10427   // add distance for potential left text (without drawing area border)
10428   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
10429
10430   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10431
10432   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
10433 }
10434
10435 static void DrawCustomChangeContentArea(void)
10436 {
10437   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
10438   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10439   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
10440   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
10441   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
10442   int xoffset = ED_GADGET_SPACE_DISTANCE;
10443
10444   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10445
10446   MapDrawingArea(id);
10447 }
10448
10449 static void RemoveElementContentArea(int id, int font_height)
10450 {
10451   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10452
10453   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
10454                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
10455                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10456                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
10457                  ED_GADGET_TEXT_DISTANCE + font_height);
10458 }
10459
10460 static void DrawYamYamContentAreas(void)
10461 {
10462   int font_nr = FONT_TEXT_1;
10463   int font_height = getFontHeight(font_nr);
10464   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10465   int yoffset = (tilesize - font_height) / 2;
10466   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
10467   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
10468   int i;
10469
10470   // display counter to choose number of element content areas
10471   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
10472
10473   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10474   {
10475     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
10476
10477     if (i < level.num_yamyam_contents)
10478     {
10479       MapDrawingArea(id);
10480     }
10481     else
10482     {
10483       UnmapDrawingArea(id);
10484
10485       // delete content areas in case of reducing number of them
10486       RemoveElementContentArea(id, font_height);
10487     }
10488   }
10489
10490   DrawText(x, y + 0 * tilesize, "content", font_nr);
10491   DrawText(x, y + 1 * tilesize, "when",    font_nr);
10492   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
10493 }
10494
10495 static void DrawMagicBallContentAreas(void)
10496 {
10497   int font_nr = FONT_TEXT_1;
10498   int font_height = getFontHeight(font_nr);
10499   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10500   int yoffset = (tilesize - font_height) / 2;
10501   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
10502   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
10503   int i;
10504
10505   // display counter to choose number of element content areas
10506   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
10507
10508   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10509   {
10510     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
10511
10512     if (i < level.num_ball_contents)
10513     {
10514       MapDrawingArea(id);
10515     }
10516     else
10517     {
10518       UnmapDrawingArea(id);
10519
10520       // delete content areas in case of reducing number of them
10521       RemoveElementContentArea(id, font_height);
10522     }
10523   }
10524
10525   DrawText(x, y + 0 * tilesize, "generated", font_nr);
10526   DrawText(x, y + 1 * tilesize, "when",      font_nr);
10527   DrawText(x, y + 2 * tilesize, "active",    font_nr);
10528 }
10529
10530 static void DrawAndroidElementArea(void)
10531 {
10532   int id = ED_DRAWING_ID_ANDROID_CONTENT;
10533   int num_elements = level.num_android_clone_elements;
10534   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10535   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10536   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10537   int xsize = MAX_ANDROID_ELEMENTS;
10538   int ysize = 1;
10539
10540   // display counter to choose number of element areas
10541   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
10542
10543   if (drawingarea_info[id].text_left != NULL)
10544     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10545
10546   UnmapDrawingArea(id);
10547
10548   ModifyEditorDrawingArea(id, num_elements, 1);
10549
10550   // delete content areas in case of reducing number of them
10551   DrawBackground(sx, sy,
10552                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10553                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10554
10555   MapDrawingArea(id);
10556 }
10557
10558 static void DrawGroupElementArea(void)
10559 {
10560   int id = ED_DRAWING_ID_GROUP_CONTENT;
10561   int num_elements = group_element_info.num_elements;
10562   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10563   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10564   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10565   int xsize = MAX_ELEMENTS_IN_GROUP;
10566   int ysize = 1;
10567
10568   if (drawingarea_info[id].text_left != NULL)
10569     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10570
10571   UnmapDrawingArea(id);
10572
10573   ModifyEditorDrawingArea(id, num_elements, 1);
10574
10575   // delete content areas in case of reducing number of them
10576   DrawBackground(sx, sy,
10577                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10578                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10579
10580   MapDrawingArea(id);
10581 }
10582
10583 static void DrawPlayerInitialInventoryArea(int element)
10584 {
10585   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
10586   int player_nr = GET_PLAYER_NR(element);
10587   int num_elements = level.initial_inventory_size[player_nr];
10588   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10589   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10590   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10591   int xsize = MAX_INITIAL_INVENTORY_SIZE;
10592   int ysize = 1;
10593
10594   // determine horizontal position to the right of specified gadget
10595   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
10596     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
10597           ED_DRAWINGAREA_TEXT_DISTANCE);
10598
10599   // determine horizontal offset for leading text
10600   if (drawingarea_info[id].text_left != NULL)
10601     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10602
10603   UnmapDrawingArea(id);
10604
10605   ModifyEditorDrawingArea(id, num_elements, 1);
10606
10607   // delete content areas in case of reducing number of them
10608   DrawBackground(sx, sy,
10609                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10610                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10611
10612   MapDrawingArea(id);
10613 }
10614
10615 static void DrawMMBallContentArea(void)
10616 {
10617   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
10618   int num_elements = level.num_mm_ball_contents;
10619   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10620   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10621   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10622   int xsize = MAX_MM_BALL_CONTENTS;
10623   int ysize = 1;
10624
10625   if (drawingarea_info[id].text_left != NULL)
10626     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10627
10628   UnmapDrawingArea(id);
10629
10630   ModifyEditorDrawingArea(id, num_elements, 1);
10631
10632   // delete content areas in case of reducing number of them
10633   DrawBackground(sx, sy,
10634                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10635                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10636
10637   MapDrawingArea(id);
10638 }
10639
10640 static void DrawEnvelopeTextArea(int envelope_nr)
10641 {
10642   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
10643   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
10644
10645   UnmapGadget(gi);
10646
10647   DrawBackground(gi->x, gi->y,
10648                  gi->textarea.crop_width, gi->textarea.crop_height);
10649
10650   if (envelope_nr != -1)
10651     textarea_info[id].value = level.envelope[envelope_nr].text;
10652
10653   ModifyGadget(gi, GDI_AREA_SIZE,
10654                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
10655                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
10656                GDI_END);
10657
10658   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
10659 }
10660
10661 static void DrawPropertiesInfo(void)
10662 {
10663   static struct
10664   {
10665     int value;
10666     char *text;
10667   }
10668   properties[] =
10669   {
10670     // configurable properties
10671
10672     { EP_WALKABLE_OVER,         "- player can walk over it"             },
10673     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
10674     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
10675     { EP_PASSABLE_OVER,         "- player can pass over it"             },
10676     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
10677     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
10678     { EP_PROTECTED,             "- player is protected by it"           },
10679
10680     { EP_DIGGABLE,              "- can be digged away"                  },
10681     { EP_COLLECTIBLE,           "- can be collected"                    },
10682     { EP_DROPPABLE,             "- can be dropped after collecting"     },
10683     { EP_THROWABLE,             "- can be thrown after collecting"      },
10684     { EP_PUSHABLE,              "- can be pushed"                       },
10685
10686     { EP_CAN_FALL,              "- can fall"                            },
10687     { EP_CAN_MOVE,              "- can move"                            },
10688
10689     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
10690 #if 0
10691     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
10692 #endif
10693     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
10694
10695     { EP_SLIPPERY,              "- slippery for falling elements"       },
10696     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
10697
10698     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
10699     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
10700     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
10701     { EP_DONT_TOUCH,            "- deadly when touching"                },
10702
10703     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
10704
10705     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
10706     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
10707     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
10708
10709     { EP_CAN_CHANGE,            "- can change to other element"         },
10710
10711     // pre-defined properties
10712     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
10713     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
10714     { EP_SWITCHABLE,            "- can be switched"                     },
10715 #if 0
10716     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
10717 #endif
10718
10719     { -1,                       NULL                                    }
10720   };
10721   char *filename = getElementDescriptionFilename(properties_element);
10722   char *num_elements_text = "In this level: ";
10723   char *num_similar_text = "Similar tiles: ";
10724   char *properties_text = "Standard properties: ";
10725   char *description_text = "Description:";
10726   char *no_description_text = "No description available.";
10727   char *none_text = "None";
10728   float percentage;
10729   int num_elements_in_level = 0;
10730   int num_similar_in_level = 0;
10731   int num_hires_tiles_in_level = 0;
10732   int num_standard_properties = 0;
10733   int font1_nr = FONT_TEXT_1;
10734   int font2_nr = FONT_TEXT_2;
10735   int font1_width = getFontWidth(font1_nr);
10736   int font1_height = getFontHeight(font1_nr);
10737   int font2_height = getFontHeight(font2_nr);
10738   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
10739   int font2_yoffset = (font1_height - font2_height) / 2;
10740   int num_elements_text_len = strlen(num_elements_text) * font1_width;
10741   int num_similar_text_len = strlen(num_similar_text) * font1_width;
10742   int properties_text_len = strlen(properties_text) * font1_width;
10743   int xpos = ED_ELEMENT_SETTINGS_X(0);
10744   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10745   int i, x, y;
10746
10747   if (setup.editor.show_element_token)
10748   {
10749     int font3_nr = FONT_TEXT_3;
10750     int font3_height = getFontHeight(font3_nr);
10751
10752     DrawTextF(xpos, ypos, font3_nr,
10753               "[%s]", element_info[properties_element].token_name);
10754
10755     ypos += 2 * font3_height;
10756   }
10757
10758   // ----- print number of elements / percentage of this element in level
10759
10760   for (y = 0; y < lev_fieldy; y++)
10761   {
10762     for (x = 0; x < lev_fieldx; x++)
10763     {
10764       if (Tile[x][y] == properties_element)
10765       {
10766         num_elements_in_level++;
10767       }
10768       else if (IS_MM_WALL(Tile[x][y]) &&
10769                map_mm_wall_element(Tile[x][y]) == properties_element)
10770       {
10771         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
10772       }
10773     }
10774   }
10775
10776   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10777
10778   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
10779
10780   if (num_hires_tiles_in_level > 0)
10781     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10782               "%d wall tiles", num_hires_tiles_in_level);
10783   else if (num_elements_in_level > 0)
10784     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10785               "%d (%.2f %%)", num_elements_in_level, percentage);
10786   else
10787     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10788               none_text);
10789
10790   // ----- print number of similar elements / percentage of them in level
10791
10792   for (y = 0; y < lev_fieldy; y++)
10793   {
10794     for (x = 0; x < lev_fieldx; x++)
10795     {
10796       if (strEqual(element_info[Tile[x][y]].class_name,
10797                    element_info[properties_element].class_name))
10798       {
10799         num_similar_in_level++;
10800       }
10801     }
10802   }
10803
10804   if (num_similar_in_level != num_elements_in_level)
10805   {
10806     ypos += 1 * MAX(font1_height, font2_height);
10807
10808     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10809
10810     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
10811
10812     if (num_similar_in_level > 0)
10813       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10814                 "%d (%.2f %%)", num_similar_in_level, percentage);
10815     else
10816       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10817                 none_text);
10818   }
10819
10820   ypos += 2 * MAX(font1_height, font2_height);
10821
10822   // ----- print standard properties of this element
10823
10824   DrawTextS(xpos, ypos, font1_nr, properties_text);
10825
10826   ypos += line1_height;
10827
10828   for (i = 0; properties[i].value != -1; i++)
10829   {
10830     if (!HAS_PROPERTY(properties_element, properties[i].value))
10831       continue;
10832
10833     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
10834
10835     ypos += font2_height;
10836
10837     num_standard_properties++;
10838   }
10839
10840   if (num_standard_properties == 0)
10841   {
10842     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
10843               font2_nr, none_text);
10844
10845     ypos -= (line1_height - font1_height);
10846   }
10847
10848   ypos += MAX(font1_height, font2_height);
10849
10850   // ----- print special description of this element
10851
10852   PrintInfoText(description_text, font1_nr, xpos, ypos);
10853
10854   ypos += line1_height;
10855
10856   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
10857     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
10858 }
10859
10860 #define TEXT_COLLECTING         "Score for collecting"
10861 #define TEXT_COLLECTING_EXTRA   "Score for extra diamonds"
10862 #define TEXT_SMASHING           "Score for smashing"
10863 #define TEXT_SLURPING           "Score for slurping robot"
10864 #define TEXT_CRACKING           "Score for cracking"
10865 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
10866 #define TEXT_AMOEBA_THRESHOED   "Size for turning to rocks"
10867 #define TEXT_AMOEBA_SLOW_TIME   "Slow growth time (seconds)"
10868 #define TEXT_AMOEBA_SLOW_RATE   "Slow growth rate (percent)"
10869 #define TEXT_AMOEBA_FAST_RATE   "Fast growth rate (percent)"
10870 #define TEXT_DURATION           "Duration when activated"
10871 #define TEXT_DELAY_ON           "Delay before activating"
10872 #define TEXT_DELAY_OFF          "Delay before deactivating"
10873 #define TEXT_DELAY_CHANGING     "Delay before changing"
10874 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
10875 #define TEXT_DELAY_MOVING       "Delay before moving"
10876 #define TEXT_BALL_DELAY         "Element generation delay"
10877 #define TEXT_MOVE_SPEED         "Speed of android moving"
10878 #define TEXT_CLONE_SPEED        "Speed of android cloning"
10879 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
10880 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
10881 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
10882 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
10883 #define TEXT_TIME_BONUS         "Extra time to solve level"
10884 #define TEXT_TIME_PENALTY       "Time penalty if destroyed"
10885 #define TEXT_PERMEABILITY_RATE  "slime permeability rate"
10886 #define TEXT_PERMEABILITY_BITS  "slime permeability bits"
10887 #define TEXT_RANDOM_SEED        "slime random number seed"
10888 #define TEXT_ACID_SPREAD_RATE   "Spread rate (percent)"
10889 #define TEXT_BITER_MOVE_DELAY   "Move delay (BD frames)"
10890
10891 static struct
10892 {
10893   int element;
10894   int *value;
10895   char *text;
10896   int min_value;
10897   int max_value;
10898 } elements_with_counter[] =
10899 {
10900   { EL_EMERALD,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10901   { EL_BD_DIAMOND,              &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10902   { EL_BD_DIAMOND,              &level.score[SC_DIAMOND_EXTRA],         TEXT_COLLECTING_EXTRA   },
10903   { EL_EMERALD_YELLOW,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10904   { EL_EMERALD_RED,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10905   { EL_EMERALD_PURPLE,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10906   { EL_SP_INFOTRON,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10907   { EL_DIAMOND,                 &level.score[SC_DIAMOND],               TEXT_COLLECTING         },
10908   { EL_CRYSTAL,                 &level.score[SC_CRYSTAL],               TEXT_COLLECTING         },
10909   { EL_PEARL,                   &level.score[SC_PEARL],                 TEXT_COLLECTING         },
10910   { EL_BUG,                     &level.score[SC_BUG],                   TEXT_SMASHING           },
10911   { EL_BUG_RIGHT,               &level.score[SC_BUG],                   TEXT_SMASHING           },
10912   { EL_BUG_UP,                  &level.score[SC_BUG],                   TEXT_SMASHING           },
10913   { EL_BUG_LEFT,                &level.score[SC_BUG],                   TEXT_SMASHING           },
10914   { EL_BUG_DOWN,                &level.score[SC_BUG],                   TEXT_SMASHING           },
10915   { EL_BD_BUTTERFLY,            &level.score[SC_BUG],                   TEXT_SMASHING           },
10916   { EL_BD_BUTTERFLY_RIGHT,      &level.score[SC_BUG],                   TEXT_SMASHING           },
10917   { EL_BD_BUTTERFLY_UP,         &level.score[SC_BUG],                   TEXT_SMASHING           },
10918   { EL_BD_BUTTERFLY_LEFT,       &level.score[SC_BUG],                   TEXT_SMASHING           },
10919   { EL_BD_BUTTERFLY_DOWN,       &level.score[SC_BUG],                   TEXT_SMASHING           },
10920   { EL_SP_ELECTRON,             &level.score[SC_BUG],                   TEXT_SMASHING           },
10921   { EL_SPACESHIP,               &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10922   { EL_SPACESHIP_RIGHT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10923   { EL_SPACESHIP_UP,            &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10924   { EL_SPACESHIP_LEFT,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10925   { EL_SPACESHIP_DOWN,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10926   { EL_BD_FIREFLY,              &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10927   { EL_BD_FIREFLY_RIGHT,        &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10928   { EL_BD_FIREFLY_UP,           &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10929   { EL_BD_FIREFLY_LEFT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10930   { EL_BD_FIREFLY_DOWN,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10931   { EL_SP_SNIKSNAK,             &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10932   { EL_YAMYAM,                  &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10933   { EL_YAMYAM_LEFT,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10934   { EL_YAMYAM_RIGHT,            &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10935   { EL_YAMYAM_UP,               &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10936   { EL_YAMYAM_DOWN,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10937   { EL_DARK_YAMYAM,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10938   { EL_ROBOT,                   &level.score[SC_ROBOT],                 TEXT_SMASHING           },
10939   { EL_PACMAN,                  &level.score[SC_PACMAN],                TEXT_SMASHING           },
10940   { EL_PACMAN_RIGHT,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
10941   { EL_PACMAN_UP,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
10942   { EL_PACMAN_LEFT,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
10943   { EL_PACMAN_DOWN,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
10944   { EL_NUT,                     &level.score[SC_NUT],                   TEXT_CRACKING           },
10945   { EL_DYNAMITE,                &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10946   { EL_EM_DYNAMITE,             &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10947   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10948   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10949   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10950   { EL_SHIELD_NORMAL,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
10951   { EL_SHIELD_DEADLY,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
10952   { EL_EXTRA_TIME,              &level.extra_time_score,                TEXT_COLLECTING         },
10953   { EL_KEY_1,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10954   { EL_KEY_2,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10955   { EL_KEY_3,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10956   { EL_KEY_4,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10957   { EL_EM_KEY_1,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10958   { EL_EM_KEY_2,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10959   { EL_EM_KEY_3,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10960   { EL_EM_KEY_4,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10961   { EL_EMC_KEY_5,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10962   { EL_EMC_KEY_6,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10963   { EL_EMC_KEY_7,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10964   { EL_EMC_KEY_8,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10965   { EL_DC_KEY_WHITE,            &level.score[SC_KEY],                   TEXT_COLLECTING         },
10966   { EL_MM_KETTLE,               &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10967   { EL_DF_CELL,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10968   { EL_MM_KEY,                  &level.score[SC_KEY],                   TEXT_COLLECTING         },
10969   { EL_MM_LIGHTBALL,            &level.score[SC_ELEM_BONUS],            TEXT_COLLECTING         },
10970   { EL_MM_PACMAN,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
10971   { EL_MM_PACMAN_RIGHT,         &level.score[SC_PACMAN],                TEXT_SMASHING           },
10972   { EL_MM_PACMAN_UP,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
10973   { EL_MM_PACMAN_LEFT,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
10974   { EL_MM_PACMAN_DOWN,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
10975   { EL_AMOEBA_WET,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10976   { EL_AMOEBA_DRY,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10977   { EL_AMOEBA_FULL,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10978   { EL_BD_AMOEBA,               &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10979   { EL_EMC_DRIPPER,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10980   { EL_BD_AMOEBA,               &level.bd_amoeba_threshold_too_big,     TEXT_AMOEBA_THRESHOED   },
10981   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_time,      TEXT_AMOEBA_SLOW_TIME   },
10982   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_rate,      TEXT_AMOEBA_SLOW_RATE,
10983                                 0, 100                                                          },
10984   { EL_BD_AMOEBA,               &level.bd_amoeba_fast_growth_rate,      TEXT_AMOEBA_FAST_RATE,
10985                                 0, 100                                                          },
10986   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_threshold_too_big,   TEXT_AMOEBA_THRESHOED   },
10987   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_time,    TEXT_AMOEBA_SLOW_TIME   },
10988   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_rate,    TEXT_AMOEBA_SLOW_RATE,
10989                                 0, 100                                                          },
10990   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_fast_growth_rate,    TEXT_AMOEBA_FAST_RATE,
10991                                 0, 100                                                          },
10992   { EL_MAGIC_WALL,              &level.time_magic_wall,                 TEXT_DURATION           },
10993   { EL_BD_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
10994   { EL_DC_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
10995   { EL_ROBOT_WHEEL,             &level.time_wheel,                      TEXT_DURATION           },
10996   { EL_TIMEGATE_SWITCH,         &level.time_timegate,                   TEXT_DURATION           },
10997   { EL_DC_TIMEGATE_SWITCH,      &level.time_timegate,                   TEXT_DURATION           },
10998   { EL_LIGHT_SWITCH,            &level.time_light,                      TEXT_DURATION           },
10999   { EL_LIGHT_SWITCH_ACTIVE,     &level.time_light,                      TEXT_DURATION           },
11000   { EL_SHIELD_NORMAL,           &level.shield_normal_time,              TEXT_DURATION           },
11001   { EL_SHIELD_DEADLY,           &level.shield_deadly_time,              TEXT_DURATION           },
11002   { EL_BD_CLOCK,                &level.bd_clock_extra_time,             TEXT_TIME_BONUS,
11003                                 -100, 100                                                       },
11004   { EL_BD_VOODOO_DOLL,          &level.bd_voodoo_penalty_time,          TEXT_TIME_PENALTY,
11005                                 0, 100                                                          },
11006   { EL_BD_SLIME,                &level.bd_slime_permeability_rate,      TEXT_PERMEABILITY_RATE,
11007                                 0, 100                                                          },
11008   { EL_BD_SLIME,                &level.bd_slime_permeability_bits_c64,  TEXT_PERMEABILITY_BITS,
11009                                 0, 255                                                          },
11010   { EL_BD_SLIME,                &level.bd_slime_random_seed_c64,        TEXT_RANDOM_SEED,
11011                                 -1, 65535                                                       },
11012   { EL_BD_ACID,                 &level.bd_acid_spread_rate,             TEXT_ACID_SPREAD_RATE,
11013                                 0, 100                                                          },
11014   { EL_BD_BITER,                &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11015                                 0, 3                                                            },
11016   { EL_BD_BITER_RIGHT,          &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11017                                 0, 3                                                            },
11018   { EL_BD_BITER_UP,             &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11019                                 0, 3                                                            },
11020   { EL_BD_BITER_LEFT,           &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11021                                 0, 3                                                            },
11022   { EL_BD_BITER_DOWN,           &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11023                                 0, 3                                                            },
11024   { EL_EXTRA_TIME,              &level.extra_time,                      TEXT_TIME_BONUS         },
11025   { EL_TIME_ORB_FULL,           &level.time_orb_time,                   TEXT_TIME_BONUS         },
11026   { EL_GAME_OF_LIFE,            &level.game_of_life[0],                 TEXT_GAME_OF_LIFE_1,0,8 },
11027   { EL_GAME_OF_LIFE,            &level.game_of_life[1],                 TEXT_GAME_OF_LIFE_2,0,8 },
11028   { EL_GAME_OF_LIFE,            &level.game_of_life[2],                 TEXT_GAME_OF_LIFE_3,0,8 },
11029   { EL_GAME_OF_LIFE,            &level.game_of_life[3],                 TEXT_GAME_OF_LIFE_4,0,8 },
11030   { EL_BIOMAZE,                 &level.biomaze[0],                      TEXT_GAME_OF_LIFE_1,0,8 },
11031   { EL_BIOMAZE,                 &level.biomaze[1],                      TEXT_GAME_OF_LIFE_2,0,8 },
11032   { EL_BIOMAZE,                 &level.biomaze[2],                      TEXT_GAME_OF_LIFE_3,0,8 },
11033   { EL_BIOMAZE,                 &level.biomaze[3],                      TEXT_GAME_OF_LIFE_4,0,8 },
11034   { EL_EMC_ANDROID,             &level.android_move_time,               TEXT_MOVE_SPEED         },
11035   { EL_EMC_ANDROID,             &level.android_clone_time,              TEXT_CLONE_SPEED        },
11036   { EL_EMC_MAGIC_BALL,          &level.ball_time,                       TEXT_BALL_DELAY         },
11037   { EL_EMC_LENSES,              &level.lenses_score,                    TEXT_COLLECTING         },
11038   { EL_EMC_MAGNIFIER,           &level.magnify_score,                   TEXT_COLLECTING         },
11039   { EL_SPRING,                  &level.slurp_score,                     TEXT_SLURPING           },
11040   { EL_SPRING_LEFT,             &level.slurp_score,                     TEXT_SLURPING           },
11041   { EL_SPRING_RIGHT,            &level.slurp_score,                     TEXT_SLURPING           },
11042   { EL_EMC_LENSES,              &level.lenses_time,                     TEXT_DURATION           },
11043   { EL_EMC_MAGNIFIER,           &level.magnify_time,                    TEXT_DURATION           },
11044   { EL_MM_FUSE_ACTIVE,          &level.mm_time_fuse,                    TEXT_DELAY_OFF          },
11045   { EL_MM_BOMB,                 &level.mm_time_bomb,                    TEXT_DELAY_EXPLODING    },
11046   { EL_MM_GRAY_BALL,            &level.mm_time_ball,                    TEXT_DELAY_CHANGING     },
11047   { EL_MM_STEEL_BLOCK,          &level.mm_time_block,                   TEXT_DELAY_MOVING       },
11048   { EL_MM_WOODEN_BLOCK,         &level.mm_time_block,                   TEXT_DELAY_MOVING       },
11049
11050   { -1,                         NULL,                                   NULL                    }
11051 };
11052
11053 static boolean checkPropertiesConfig(int element)
11054 {
11055   int i;
11056
11057   // special case: empty space customization only available in R'n'D game engine
11058   if (element == EL_EMPTY_SPACE && level.game_engine_type != GAME_ENGINE_TYPE_RND)
11059     return FALSE;
11060
11061   // special case: BD style rock customization only available in BD game engine
11062   if (element == EL_BD_ROCK && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11063     return FALSE;
11064
11065   if (IS_GEM(element) ||
11066       IS_CUSTOM_ELEMENT(element) ||
11067       IS_GROUP_ELEMENT(element) ||
11068       IS_EMPTY_ELEMENT(element) ||
11069       IS_BALLOON_ELEMENT(element) ||
11070       IS_ENVELOPE(element) ||
11071       IS_MM_ENVELOPE(element) ||
11072       IS_MM_MCDUFFIN(element) ||
11073       IS_DF_LASER(element) ||
11074       IS_PLAYER_ELEMENT(element) ||
11075       IS_BD_PLAYER_ELEMENT(element) ||
11076       IS_SOKOBAN_OBJECT_OR_FIELD(element) ||
11077       HAS_EDITOR_CONTENT(element) ||
11078       CAN_GROW(element) ||
11079       COULD_MOVE_INTO_ACID(element) ||
11080       MAYBE_DONT_COLLIDE_WITH(element) ||
11081       element == EL_BD_ROCK ||
11082       element == EL_BD_MEGA_ROCK ||
11083       element == EL_BD_SWEET ||
11084       element == EL_BD_VOODOO_DOLL)
11085   {
11086     return TRUE;
11087   }
11088   else
11089   {
11090     for (i = 0; elements_with_counter[i].element != -1; i++)
11091       if (elements_with_counter[i].element == element)
11092         return TRUE;
11093   }
11094
11095   return FALSE;
11096 }
11097
11098 static void SetAutomaticNumberOfGemsNeeded(void)
11099 {
11100   int x, y;
11101
11102   if (!level.auto_count_gems)
11103     return;
11104
11105   level.gems_needed = 0;
11106
11107   for (x = 0; x < lev_fieldx; x++)
11108   {
11109     for (y = 0; y < lev_fieldy; y++)
11110     {
11111       int element = Tile[x][y];
11112
11113       switch (element)
11114       {
11115         case EL_EMERALD:
11116         case EL_EMERALD_YELLOW:
11117         case EL_EMERALD_RED:
11118         case EL_EMERALD_PURPLE:
11119         case EL_BD_DIAMOND:
11120         case EL_WALL_EMERALD:
11121         case EL_WALL_EMERALD_YELLOW:
11122         case EL_WALL_EMERALD_RED:
11123         case EL_WALL_EMERALD_PURPLE:
11124         case EL_WALL_BD_DIAMOND:
11125         case EL_NUT:
11126         case EL_SP_INFOTRON:
11127         case EL_MM_KETTLE:
11128         case EL_DF_CELL:
11129           level.gems_needed++;
11130           break;
11131
11132         case EL_DIAMOND:
11133         case EL_WALL_DIAMOND:
11134           level.gems_needed += 3;
11135           break;
11136
11137         case EL_PEARL:
11138         case EL_WALL_PEARL:
11139           level.gems_needed += 5;
11140           break;
11141
11142         case EL_CRYSTAL:
11143         case EL_WALL_CRYSTAL:
11144           level.gems_needed += 8;
11145           break;
11146
11147         default:
11148           break;
11149       }
11150     }
11151   }
11152
11153   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
11154 }
11155
11156 static void DrawPropertiesConfig(void)
11157 {
11158   boolean draw_footer_line = FALSE;
11159   int max_num_element_counters = 4;
11160   int num_element_counters = 0;
11161   int i;
11162
11163   if (!checkPropertiesConfig(properties_element))
11164   {
11165     int xpos = ED_ELEMENT_SETTINGS_X(0);
11166     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
11167
11168     PrintInfoText("No configuration options available.", FONT_TEXT_1, xpos, ypos);
11169
11170     return;
11171   }
11172
11173   // check if there are elements where a value can be chosen for
11174   for (i = 0; elements_with_counter[i].element != -1; i++)
11175   {
11176     if (elements_with_counter[i].element != properties_element)
11177       continue;
11178
11179     // special case: score for extra diamonds only available in BD game engine
11180     if (elements_with_counter[i].element == EL_BD_DIAMOND &&
11181         elements_with_counter[i].value == &level.score[SC_DIAMOND_EXTRA] &&
11182         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11183       continue;
11184
11185     // special case: some amoeba counters only available in BD game engine
11186     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11187         elements_with_counter[i].value != &level.amoeba_speed &&
11188         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11189       continue;
11190
11191     // special case: some amoeba counters only available in R'n'D game engine
11192     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11193         elements_with_counter[i].value == &level.amoeba_speed &&
11194         level.game_engine_type == GAME_ENGINE_TYPE_BD)
11195       continue;
11196
11197     int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
11198
11199     counterbutton_info[counter_id].y =
11200       ED_ELEMENT_SETTINGS_YPOS((HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
11201                                (CAN_GROW(properties_element)                ? 1 : 0) +
11202                                (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
11203                                (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
11204                                (properties_element == EL_BD_VOODOO_DOLL     ? 4 : 0) +
11205                                (properties_element == EL_BD_SLIME           ? 1 : 0) +
11206                                (properties_element == EL_BD_ACID            ? 1 : 0) +
11207                                (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
11208                                num_element_counters);
11209
11210     // special case: set amoeba counters for BD game engine separately
11211     if ((properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD) ||
11212         (properties_element == EL_BD_AMOEBA_2))
11213       counterbutton_info[counter_id].y = ED_ELEMENT_SETTINGS_YPOS(3 + num_element_counters);
11214
11215     counterbutton_info[counter_id].value      = elements_with_counter[i].value;
11216     counterbutton_info[counter_id].text_right = elements_with_counter[i].text;
11217     counterbutton_info[counter_id].min_value  = elements_with_counter[i].min_value;
11218     counterbutton_info[counter_id].max_value  = elements_with_counter[i].max_value;
11219
11220     // default: counter values between 0 and 999
11221     if (counterbutton_info[counter_id].max_value == 0)
11222       counterbutton_info[counter_id].max_value = 999;
11223
11224     MapCounterButtons(counter_id);
11225
11226     num_element_counters++;
11227     if (num_element_counters >= max_num_element_counters)
11228       break;
11229   }
11230
11231   if (HAS_EDITOR_CONTENT(properties_element))
11232   {
11233     // draw stickybutton gadget
11234     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11235
11236     if (properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11237     {
11238       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11239       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11240
11241       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG);
11242       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED);
11243     }
11244     else if (properties_element == EL_BD_AMOEBA_2)
11245     {
11246       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11247       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11248       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA);
11249
11250       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG);
11251       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED);
11252       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING);
11253       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE);
11254     }
11255     else if (IS_AMOEBOID(properties_element))
11256       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
11257     else if (properties_element == EL_BD_ACID)
11258     {
11259       MapDrawingArea(ED_DRAWING_ID_BD_ACID_EATS_ELEMENT);
11260       MapDrawingArea(ED_DRAWING_ID_BD_ACID_TURNS_TO_ELEMENT);
11261     }
11262     else if (IS_BD_BITER(properties_element))
11263     {
11264       MapDrawingArea(ED_DRAWING_ID_BD_BITER_EATS_ELEMENT);
11265     }
11266     else if (properties_element == EL_YAMYAM ||
11267              properties_element == EL_YAMYAM_LEFT ||
11268              properties_element == EL_YAMYAM_RIGHT ||
11269              properties_element == EL_YAMYAM_UP ||
11270              properties_element == EL_YAMYAM_DOWN)
11271       DrawYamYamContentAreas();
11272     else if (properties_element == EL_EMC_MAGIC_BALL)
11273     {
11274       DrawMagicBallContentAreas();
11275
11276       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
11277       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
11278     }
11279     else if (properties_element == EL_EMC_ANDROID)
11280       DrawAndroidElementArea();
11281     else if (properties_element == EL_MM_GRAY_BALL)
11282     {
11283       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
11284       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
11285       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
11286       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
11287
11288       DrawMMBallContentArea();
11289     }
11290   }
11291
11292   if (IS_PLAYER_ELEMENT(properties_element))
11293   {
11294     int player_nr = GET_PLAYER_NR(properties_element);
11295
11296     // these properties can be set for every player individually
11297
11298     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11299     {
11300       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
11301         &level.start_element[player_nr];
11302       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
11303         &level.artwork_element[player_nr];
11304       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
11305         &level.explosion_element[player_nr];
11306
11307       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
11308         &level.use_start_element[player_nr];
11309       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
11310         &level.use_artwork_element[player_nr];
11311       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
11312         &level.use_explosion_element[player_nr];
11313       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
11314         &level.initial_player_gravity[player_nr];
11315
11316       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
11317         &level.initial_player_stepsize[player_nr];
11318
11319       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
11320       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
11321                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
11322                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
11323       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
11324       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
11325       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
11326       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
11327       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
11328       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
11329       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
11330       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
11331       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
11332       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
11333       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
11334
11335       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
11336       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
11337       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
11338
11339       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
11340     }
11341     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11342     {
11343       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
11344         &level.initial_inventory_content[player_nr][0];
11345
11346       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
11347         &level.initial_inventory_size[player_nr];
11348
11349       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
11350         &level.use_initial_inventory[player_nr];
11351
11352       // draw checkbutton gadgets
11353       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
11354       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
11355       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
11356
11357       // draw counter gadgets
11358       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
11359
11360       // draw drawing area gadgets
11361       DrawPlayerInitialInventoryArea(properties_element);
11362     }
11363   }
11364
11365   if (IS_BD_PLAYER_ELEMENT(properties_element))
11366   {
11367     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11368       ED_ELEMENT_SETTINGS_YPOS(2);
11369     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11370       ED_ELEMENT_SETTINGS_YPOS(3);
11371     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11372       ED_ELEMENT_SETTINGS_YPOS(4);
11373
11374     // draw checkbutton gadgets
11375     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS);
11376     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE);
11377     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11378
11379     // draw counter gadgets
11380     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11381     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11382
11383     // draw drawing area gadgets
11384     MapDrawingArea(ED_DRAWING_ID_BD_SNAP_ELEMENT);
11385   }
11386
11387   if (properties_element == EL_BD_ROCK && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11388   {
11389     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11390       ED_ELEMENT_SETTINGS_YPOS(0);
11391     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11392       ED_ELEMENT_SETTINGS_YPOS(1);
11393
11394     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11395     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11396   }
11397
11398   if (properties_element == EL_BD_MEGA_ROCK ||
11399       properties_element == EL_BD_SWEET)
11400   {
11401     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11402       ED_ELEMENT_SETTINGS_YPOS(0);
11403     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11404       ED_ELEMENT_SETTINGS_YPOS(1);
11405
11406     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11407     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11408   }
11409
11410   if (properties_element == EL_BD_VOODOO_DOLL)
11411   {
11412     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS);
11413     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER);
11414     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK);
11415     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION);
11416   }
11417
11418   if (properties_element == EL_BD_SLIME)
11419   {
11420     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE);
11421   }
11422
11423   if (properties_element == EL_BD_MAGIC_WALL)
11424   {
11425     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING);
11426     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA);
11427   }
11428
11429   // special case: slippery walls option for gems only available in R'n'D game engine
11430   if (IS_GEM(properties_element) && level.game_engine_type == GAME_ENGINE_TYPE_RND)
11431     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
11432
11433   if (properties_element == EL_EM_DYNAMITE)
11434     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
11435
11436   if (COULD_MOVE_INTO_ACID(properties_element) &&
11437       !IS_PLAYER_ELEMENT(properties_element) &&
11438       (!IS_CUSTOM_ELEMENT(properties_element) ||
11439        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
11440   {
11441     // set position for checkbutton for "can move into acid"
11442     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
11443       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
11444     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
11445       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
11446                                IS_BALLOON_ELEMENT(properties_element) ||
11447                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11448
11449     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
11450   }
11451
11452   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
11453     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
11454
11455   if (properties_element == EL_SPRING ||
11456       properties_element == EL_SPRING_LEFT ||
11457       properties_element == EL_SPRING_RIGHT)
11458     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
11459
11460   if (properties_element == EL_TIME_ORB_FULL)
11461     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
11462
11463   if (properties_element == EL_GAME_OF_LIFE ||
11464       properties_element == EL_BIOMAZE)
11465     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
11466
11467   if (CAN_GROW(properties_element) && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11468   {
11469     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
11470       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11471
11472     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
11473   }
11474
11475   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
11476     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
11477
11478   if (properties_element == EL_SOKOBAN_OBJECT)
11479     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
11480
11481   if (properties_element == EL_SOKOBAN_OBJECT ||
11482       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
11483       properties_element == EL_SOKOBAN_FIELD_FULL)
11484   {
11485     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
11486       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
11487                                0 : 1);
11488
11489     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
11490   }
11491
11492   if (IS_BALLOON_ELEMENT(properties_element))
11493     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
11494
11495   if (IS_ENVELOPE(properties_element) ||
11496       IS_MM_ENVELOPE(properties_element))
11497   {
11498     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
11499     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
11500     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
11501     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
11502     int envelope_nr = ENVELOPE_NR(properties_element);
11503
11504     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
11505     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
11506
11507     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
11508     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
11509
11510     // display counter to choose size of envelope text area
11511     MapCounterButtons(counter1_id);
11512     MapCounterButtons(counter2_id);
11513
11514     // display checkbuttons to choose auto-wrap and alignment properties
11515     MapCheckbuttonGadget(button1_id);
11516     MapCheckbuttonGadget(button2_id);
11517
11518     DrawEnvelopeTextArea(envelope_nr);
11519   }
11520
11521   if (IS_MM_MCDUFFIN(properties_element))
11522   {
11523     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
11524     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
11525     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
11526   }
11527
11528   if (IS_DF_LASER(properties_element))
11529   {
11530     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
11531     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
11532     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
11533   }
11534
11535   if (IS_CUSTOM_ELEMENT(properties_element))
11536   {
11537     // draw stickybutton gadget
11538     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11539
11540     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11541     {
11542       // draw checkbutton gadgets
11543       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
11544            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
11545         MapCheckbuttonGadget(i);
11546
11547       // draw counter gadgets
11548       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
11549            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
11550         MapCounterButtons(i);
11551
11552       // draw selectbox gadgets
11553       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
11554            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
11555         MapSelectboxGadget(i);
11556
11557       // draw textbutton gadgets
11558       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11559
11560       // draw text input gadgets
11561       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11562
11563       // draw drawing area gadgets
11564       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11565
11566       draw_footer_line = TRUE;
11567     }
11568     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11569     {
11570       // draw checkbutton gadgets
11571       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
11572            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
11573         MapCheckbuttonGadget(i);
11574
11575       // draw counter gadgets
11576       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
11577            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
11578         MapCounterButtons(i);
11579
11580       // draw selectbox gadgets
11581       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
11582            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
11583         MapSelectboxGadget(i);
11584
11585       // draw drawing area gadgets
11586       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
11587       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
11588       DrawCustomContentArea();
11589     }
11590   }
11591   else if (IS_GROUP_ELEMENT(properties_element))
11592   {
11593     // draw stickybutton gadget
11594     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11595
11596     // draw checkbutton gadgets
11597     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11598     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11599
11600     // draw counter gadgets
11601     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
11602
11603     // draw selectbox gadgets
11604     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
11605
11606     // draw textbutton gadgets
11607     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11608
11609     // draw drawing area gadgets
11610     DrawGroupElementArea();
11611
11612     // draw text input gadgets
11613     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11614
11615     // draw drawing area gadgets
11616     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11617
11618     draw_footer_line = TRUE;
11619   }
11620   else if (IS_EMPTY_ELEMENT(properties_element))
11621   {
11622     // draw stickybutton gadget
11623     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11624
11625     // draw checkbutton gadgets
11626     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11627     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11628
11629     // draw textbutton gadgets
11630     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11631
11632     // draw drawing area gadgets
11633     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11634
11635     draw_footer_line = TRUE;
11636   }
11637
11638   // draw little footer border line above CE/GE use/save template gadgets
11639   if (draw_footer_line)
11640   {
11641     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
11642     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
11643     int gd_x = gd->x + gd_gi1->border.width / 2;
11644     int gd_y = gd->y + gd_gi1->height - 1;
11645     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
11646
11647     if (tab_color != BLACK_PIXEL)               // black => transparent
11648       FillRectangle(drawto,
11649                     SX + ED_ELEMENT_SETTINGS_X(0),
11650                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
11651                     ED_TAB_BAR_HEIGHT,
11652                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
11653   }
11654 }
11655
11656 static void DrawPropertiesChangeDrawingAreas(void)
11657 {
11658   if (IS_CUSTOM_ELEMENT(properties_element))
11659   {
11660     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
11661     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
11662     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
11663
11664     DrawCustomChangeContentArea();
11665   }
11666
11667   redraw_mask |= REDRAW_FIELD;
11668 }
11669
11670 static void DrawPropertiesChange(void)
11671 {
11672   int i;
11673
11674   // needed to initially set selectbox options for special action options
11675   setSelectboxSpecialActionOptions();
11676
11677   // draw stickybutton gadget
11678   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11679
11680   // draw checkbutton gadgets
11681   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
11682        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
11683     MapCheckbuttonGadget(i);
11684
11685   // draw counter gadgets
11686   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
11687        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
11688     MapCounterButtons(i);
11689
11690   // draw selectbox gadgets
11691   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
11692        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
11693     MapSelectboxGadget(i);
11694
11695   // draw textbutton gadgets
11696   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
11697        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
11698     MapTextbuttonGadget(i);
11699
11700   // draw graphicbutton gadgets
11701   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
11702        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
11703     MapGraphicbuttonGadget(i);
11704
11705   // draw drawing area gadgets
11706   DrawPropertiesChangeDrawingAreas();
11707 }
11708
11709 static void DrawEditorElementAnimation(int x, int y)
11710 {
11711   int graphic = el2img(properties_element);
11712   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
11713                custom_element.ce_value_fixed_initial :
11714                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
11715                custom_element.collect_score_initial : FrameCounter);
11716
11717   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
11718 }
11719
11720 static void DrawEditorElementName(int x, int y, int font_nr)
11721 {
11722   char *element_name = getElementInfoText(properties_element);
11723   int font_width = getFontWidth(font_nr);
11724   int font_height = getFontHeight(font_nr);
11725   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
11726   int max_chars_per_line = max_text_width / font_width;
11727
11728   if (strlen(element_name) <= max_chars_per_line)
11729     DrawTextS(x, y, font_nr, element_name);
11730   else
11731   {
11732     char buffer[max_chars_per_line + 1];
11733     int next_pos = max_chars_per_line;
11734
11735     strncpy(buffer, element_name, max_chars_per_line);
11736     buffer[max_chars_per_line] = '\0';
11737
11738     if (element_name[max_chars_per_line] == ' ')
11739       next_pos++;
11740     else
11741     {
11742       int i;
11743
11744       for (i = max_chars_per_line - 1; i >= 0; i--)
11745         if (buffer[i] == ' ')
11746           break;
11747
11748       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
11749       {
11750         buffer[i] = '\0';
11751         next_pos = i + 1;
11752       }
11753     }
11754
11755     DrawTextS(x, y - font_height / 2, font_nr, buffer);
11756
11757     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
11758     buffer[max_chars_per_line] = '\0';
11759
11760     DrawTextS(x, y + font_height / 2, font_nr, buffer);
11761   }
11762 }
11763
11764 static void DrawPropertiesWindow(void)
11765 {
11766   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
11767   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
11768   int border_size = gd->border_size;
11769   int font_nr = FONT_TEXT_1;
11770   int font_height = getFontHeight(font_nr);
11771   int xoffset = TILEX + element_border + 3 * border_size;
11772   int yoffset = (TILEY - font_height) / 2;
11773   int x1 = editor.settings.element_graphic.x + element_border;
11774   int y1 = editor.settings.element_graphic.y + element_border;
11775   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
11776             editor.settings.element_name.x);
11777   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
11778             editor.settings.element_name.y);
11779   char *text = "Element Settings";
11780   int font2_nr = FONT_TITLE_1;
11781   struct MenuPosInfo *pos = &editor.settings.headline;
11782   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
11783   int sy = SY + pos->y;
11784
11785   stick_element_properties_window = FALSE;
11786
11787   // make sure that previous properties edit mode exists for this element
11788   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
11789       !IS_CUSTOM_ELEMENT(properties_element))
11790     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
11791
11792   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
11793       !IS_PLAYER_ELEMENT(properties_element) &&
11794       !IS_CUSTOM_ELEMENT(properties_element))
11795     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
11796
11797   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
11798       (IS_PLAYER_ELEMENT(properties_element) ||
11799        IS_CUSTOM_ELEMENT(properties_element)))
11800     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
11801
11802   CopyElementPropertiesToEditor(properties_element);
11803
11804   UnmapLevelEditorFieldGadgets();
11805   UnmapLevelEditorToolboxDrawingGadgets();
11806   UnmapLevelEditorToolboxCustomGadgets();
11807
11808   MapLevelEditorToolboxCustomGadgetsIfNeeded();
11809
11810   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11811   ClearField();
11812
11813   DrawText(sx, sy, text, font2_nr);
11814
11815   FrameCounter = 0;     // restart animation frame counter
11816
11817   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
11818   DrawEditorElementAnimation(SX + x1, SY + y1);
11819   DrawEditorElementName(x2, y2, font_nr);
11820
11821   DrawPropertiesTabulatorGadgets();
11822
11823   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
11824     DrawPropertiesInfo();
11825   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
11826     DrawPropertiesChange();
11827   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
11828     DrawPropertiesConfig();
11829 }
11830
11831 static void DrawPaletteWindow(void)
11832 {
11833   int i;
11834
11835   UnmapLevelEditorFieldGadgets();
11836
11837   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11838   ClearField();
11839
11840   // map buttons to select elements
11841   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
11842     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
11843   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
11844   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
11845   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
11846 }
11847
11848 static void UpdateCustomElementGraphicGadgets(void)
11849 {
11850   int i;
11851
11852   InitElementPropertiesGfxElement();
11853
11854   ModifyEditorElementList();
11855   RedrawDrawingElements();
11856
11857   // force redraw of all mapped drawing area gadgets
11858   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
11859   {
11860     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
11861
11862     if (gi->mapped)
11863       MapDrawingArea(i);
11864   }
11865 }
11866
11867 static int getOpenDirectionFromTube(int element)
11868 {
11869   switch (element)
11870   {
11871     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
11872     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
11873     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
11874     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
11875     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
11876     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
11877     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
11878     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
11879     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
11880     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
11881     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
11882   }
11883
11884   return MV_NONE;
11885 }
11886
11887 static int getTubeFromOpenDirection(int direction)
11888 {
11889   switch (direction)
11890   {
11891     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
11892     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
11893     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
11894     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
11895     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
11896     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
11897     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
11898     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
11899     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
11900     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
11901     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
11902
11903     // if only one direction, fall back to simple tube with that direction
11904     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
11905     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
11906     case (MV_UP):                       return EL_TUBE_VERTICAL;
11907     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
11908   }
11909
11910   return EL_EMPTY;
11911 }
11912
11913 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
11914 {
11915   int element_new = getTubeFromOpenDirection(direction);
11916
11917   return (element_new != EL_EMPTY ? element_new : element_old);
11918 }
11919
11920 static int getOpenDirectionFromBelt(int element)
11921 {
11922   int belt_dir = getBeltDirFromBeltElement(element);
11923
11924   return (belt_dir == MV_LEFT ? MV_RIGHT :
11925           belt_dir == MV_RIGHT ? MV_LEFT :
11926           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
11927 }
11928
11929 static int getBeltFromNrAndOpenDirection(int nr, int direction)
11930 {
11931   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
11932                   direction == MV_RIGHT ? MV_LEFT :
11933                   direction == MV_HORIZONTAL ? MV_NONE : direction);
11934
11935   if (direction == MV_NONE)
11936     return EL_EMPTY;
11937
11938   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
11939 }
11940
11941 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
11942                                                  int element_old)
11943 {
11944   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
11945
11946   return (element_new != EL_EMPTY ? element_new : element_old);
11947 }
11948
11949 static int getOpenDirectionFromPool(int element)
11950 {
11951   switch (element)
11952   {
11953     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
11954     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
11955     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
11956     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
11957     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
11958     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
11959   }
11960
11961   return MV_NONE;
11962 }
11963
11964 static int getPoolFromOpenDirection(int direction)
11965 {
11966   switch (direction)
11967   {
11968     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
11969     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
11970     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
11971     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
11972     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
11973     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
11974   }
11975
11976   return EL_EMPTY;
11977 }
11978
11979 static int getPoolFromOpenDirectionExt(int direction, int help_element)
11980 {
11981   int element = getPoolFromOpenDirection(direction);
11982   int help_direction = getOpenDirectionFromPool(help_element);
11983
11984   if (element == EL_EMPTY)
11985   {
11986     int help_direction_vertical = help_direction & MV_VERTICAL;
11987
11988     element = getPoolFromOpenDirection(direction | help_direction_vertical);
11989   }
11990
11991   if (element == EL_EMPTY)
11992   {
11993     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
11994
11995     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
11996   }
11997
11998   return element;
11999 }
12000
12001 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
12002 {
12003   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
12004
12005   return (element_new != EL_EMPTY ? element_new : element_old);
12006 }
12007
12008 static int getOpenDirectionFromPillar(int element)
12009 {
12010   switch (element)
12011   {
12012     case EL_EMC_WALL_1:                 return (MV_DOWN);
12013     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
12014     case EL_EMC_WALL_3:                 return (MV_UP);
12015   }
12016
12017   return MV_NONE;
12018 }
12019
12020 static int getPillarFromOpenDirection(int direction)
12021 {
12022   switch (direction)
12023   {
12024     case (MV_DOWN):                     return EL_EMC_WALL_1;
12025     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
12026     case (MV_UP):                       return EL_EMC_WALL_3;
12027   }
12028
12029   return EL_EMPTY;
12030 }
12031
12032 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
12033 {
12034   int element_new = getPillarFromOpenDirection(direction);
12035
12036   return (element_new != EL_EMPTY ? element_new : element_old);
12037 }
12038
12039 static int getOpenDirectionFromSteel2(int element)
12040 {
12041   switch (element)
12042   {
12043     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
12044     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
12045     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
12046     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
12047     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
12048     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
12049     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
12050     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
12051   }
12052
12053   return MV_NONE;
12054 }
12055
12056 static int getSteel2FromOpenDirection(int direction)
12057 {
12058   switch (direction)
12059   {
12060     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
12061     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
12062     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
12063     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
12064     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
12065     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
12066     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
12067     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
12068   }
12069
12070   return EL_EMPTY;
12071 }
12072
12073 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
12074 {
12075   int element_new = getSteel2FromOpenDirection(direction);
12076
12077   return (element_new != EL_EMPTY ? element_new : element_old);
12078 }
12079
12080 static int getOpenDirectionFromChip(int element)
12081 {
12082   switch (element)
12083   {
12084     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
12085     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
12086     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
12087     case EL_SP_CHIP_TOP:                return (MV_DOWN);
12088     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
12089   }
12090
12091   return MV_NONE;
12092 }
12093
12094 static int getChipFromOpenDirection(int direction)
12095 {
12096   switch (direction)
12097   {
12098     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
12099     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
12100     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
12101     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
12102     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
12103   }
12104
12105   return EL_EMPTY;
12106 }
12107
12108 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
12109 {
12110   int element_new = getChipFromOpenDirection(direction);
12111
12112   return (element_new != EL_EMPTY ? element_new : element_old);
12113 }
12114
12115 static int getClosedTube(int x, int y)
12116 {
12117   struct XY *xy = xy_directions;
12118   int element_old = IntelliDrawBuffer[x][y];
12119   int direction_old = getOpenDirectionFromTube(element_old);
12120   int direction_new = MV_NONE;
12121   int i;
12122
12123   for (i = 0; i < NUM_DIRECTIONS; i++)
12124   {
12125     int xx = x + xy[i].x;
12126     int yy = y + xy[i].y;
12127     int dir = MV_DIR_FROM_BIT(i);
12128     int dir_opposite = MV_DIR_OPPOSITE(dir);
12129
12130     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
12131         (direction_old & dir) &&
12132         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12133       direction_new |= dir;
12134   }
12135
12136   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
12137 }
12138
12139 static int getClosedBelt(int x, int y)
12140 {
12141   struct XY *xy = xy_directions;
12142   int element_old = IntelliDrawBuffer[x][y];
12143   int nr = getBeltNrFromBeltElement(element_old);
12144   int direction_old = getOpenDirectionFromBelt(element_old);
12145   int direction_new = MV_NONE;
12146   int i;
12147
12148   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12149   {
12150     int xx = x + xy[i].x;
12151     int yy = y + xy[i].y;
12152     int dir = MV_DIR_FROM_BIT(i);
12153     int dir_opposite = MV_DIR_OPPOSITE(dir);
12154
12155     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
12156         (direction_old & dir) &&
12157         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12158       direction_new |= dir;
12159   }
12160
12161   return getBeltFromNrAndOpenDirection(nr, direction_new);
12162 }
12163
12164 static int getClosedPool(int x, int y)
12165 {
12166   struct XY *xy = xy_directions;
12167   int element_old = IntelliDrawBuffer[x][y];
12168   int direction_old = getOpenDirectionFromPool(element_old);
12169   int direction_new = MV_NONE;
12170   int i;
12171
12172   for (i = 0; i < NUM_DIRECTIONS; i++)
12173   {
12174     int xx = x + xy[i].x;
12175     int yy = y + xy[i].y;
12176     int dir = MV_DIR_FROM_BIT(i);
12177     int dir_opposite = MV_DIR_OPPOSITE(dir);
12178
12179     if (IN_LEV_FIELD(xx, yy) &&
12180         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
12181         (direction_old & dir) &&
12182         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12183       direction_new |= dir;
12184   }
12185
12186   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
12187 }
12188
12189 static int getClosedPillar(int x, int y)
12190 {
12191   struct XY *xy = xy_directions;
12192   int element_old = IntelliDrawBuffer[x][y];
12193   int direction_old = getOpenDirectionFromPillar(element_old);
12194   int direction_new = MV_NONE;
12195   int i;
12196
12197   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12198   {
12199     int xx = x + xy[i].x;
12200     int yy = y + xy[i].y;
12201     int dir = MV_DIR_FROM_BIT(i);
12202     int dir_opposite = MV_DIR_OPPOSITE(dir);
12203
12204     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
12205         (direction_old & dir) &&
12206         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12207       direction_new |= dir;
12208   }
12209
12210   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
12211 }
12212
12213 static int getClosedSteel2(int x, int y)
12214 {
12215   struct XY *xy = xy_directions;
12216   int element_old = IntelliDrawBuffer[x][y];
12217   int direction_old = getOpenDirectionFromSteel2(element_old);
12218   int direction_new = MV_NONE;
12219   int i;
12220
12221   for (i = 0; i < NUM_DIRECTIONS; i++)
12222   {
12223     int xx = x + xy[i].x;
12224     int yy = y + xy[i].y;
12225     int dir = MV_DIR_FROM_BIT(i);
12226     int dir_opposite = MV_DIR_OPPOSITE(dir);
12227
12228     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
12229         (direction_old & dir) &&
12230         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12231       direction_new |= dir;
12232   }
12233
12234   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
12235 }
12236
12237 static int getClosedChip(int x, int y)
12238 {
12239   struct XY *xy = xy_directions;
12240   int element_old = IntelliDrawBuffer[x][y];
12241   int direction_old = getOpenDirectionFromChip(element_old);
12242   int direction_new = MV_NONE;
12243   int i;
12244
12245   for (i = 0; i < NUM_DIRECTIONS; i++)
12246   {
12247     int xx = x + xy[i].x;
12248     int yy = y + xy[i].y;
12249     int dir = MV_DIR_FROM_BIT(i);
12250     int dir_opposite = MV_DIR_OPPOSITE(dir);
12251
12252     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
12253         (direction_old & dir) &&
12254         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12255       direction_new |= dir;
12256   }
12257
12258   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
12259 }
12260
12261 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
12262                                 boolean change_level)
12263 {
12264   int sx = x - level_xpos;
12265   int sy = y - level_ypos;
12266   int old_element = Tile[x][y];
12267   int new_element = element;
12268   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
12269   boolean draw_masked = FALSE;
12270
12271   if (IS_MM_WALL_EDITOR(element))
12272   {
12273     element = map_mm_wall_element_editor(element) | new_bitmask;
12274
12275     if (IS_MM_WALL(old_element))
12276       element |= MM_WALL_BITS(old_element);
12277
12278     if (!change_level)
12279       draw_masked = TRUE;
12280   }
12281   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
12282   {
12283     int element_changed = old_element & ~new_bitmask;
12284
12285     if (MM_WALL_BITS(element_changed) != 0)
12286       element = element_changed;
12287   }
12288
12289   IntelliDrawBuffer[x][y] = element;
12290
12291   if (change_level)
12292     Tile[x][y] = element;
12293
12294   if (IN_ED_FIELD(sx, sy))
12295   {
12296     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
12297       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
12298     else if (draw_masked)
12299       DrawEditorElementThruMask(sx, sy, element);
12300     else
12301       DrawEditorElement(sx, sy, element);
12302   }
12303 }
12304
12305 static void SetElementSimple(int x, int y, int element, boolean change_level)
12306 {
12307   SetElementSimpleExt(x, y, 0, 0, element, change_level);
12308 }
12309
12310 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
12311                                            int x2, int y2, int *element2,
12312                                            int (*close_function)(int, int),
12313                                            boolean change_level)
12314 {
12315   // set neighbour elements to newly determined connections
12316   SetElementSimple(x1, y1, *element1, change_level);
12317   SetElementSimple(x2, y2, *element2, change_level);
12318
12319   // remove all open connections of neighbour elements
12320   *element1 = close_function(x1, y1);
12321   *element2 = close_function(x2, y2);
12322
12323   // set neighbour elements to new, minimized connections
12324   SetElementSimple(x1, y1, *element1, change_level);
12325   SetElementSimple(x2, y2, *element2, change_level);
12326 }
12327
12328 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
12329                                   boolean change_level, int button)
12330 {
12331   struct XY *xy = xy_directions;
12332   static int last_x = -1;
12333   static int last_y = -1;
12334
12335   if (new_element == EL_UNDEFINED)
12336   {
12337     last_x = -1;
12338     last_y = -1;
12339
12340     return;
12341   }
12342
12343   int old_element = IntelliDrawBuffer[x][y];
12344
12345   if (IS_TUBE(new_element))
12346   {
12347     int last_element_new = EL_UNDEFINED;
12348     int direction = MV_NONE;
12349     int i;
12350
12351     // if old element is of same kind, keep all existing directions
12352     if (IS_TUBE(old_element))
12353       direction |= getOpenDirectionFromTube(old_element);
12354
12355     for (i = 0; i < NUM_DIRECTIONS; i++)
12356     {
12357       int xx = x + xy[i].x;
12358       int yy = y + xy[i].y;
12359
12360       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12361           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
12362       {
12363         int dir = MV_DIR_FROM_BIT(i);
12364         int dir_opposite = MV_DIR_OPPOSITE(dir);
12365         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12366         int last_direction_old = getOpenDirectionFromTube(last_element_old);
12367         int last_direction_new = last_direction_old | dir_opposite;
12368
12369         last_element_new = getTubeFromOpenDirection(last_direction_new);
12370
12371         direction |= dir;
12372       }
12373     }
12374
12375     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
12376
12377     if (last_element_new != EL_UNDEFINED)
12378       MergeAndCloseNeighbourElements(x, y, &new_element,
12379                                      last_x, last_y, &last_element_new,
12380                                      getClosedTube, change_level);
12381   }
12382   else if (IS_BELT(new_element))
12383   {
12384     int belt_nr = getBeltNrFromBeltElement(new_element);
12385     int last_element_new = EL_UNDEFINED;
12386     int direction = MV_NONE;
12387     int i;
12388
12389     // if old element is of same kind, keep all existing directions
12390     if (IS_BELT(old_element))
12391       direction |= getOpenDirectionFromBelt(old_element);
12392
12393     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12394     {
12395       int xx = x + xy[i].x;
12396       int yy = y + xy[i].y;
12397
12398       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12399           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
12400       {
12401         int dir = MV_DIR_FROM_BIT(i);
12402         int dir_opposite = MV_DIR_OPPOSITE(dir);
12403         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12404         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
12405         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
12406         int last_direction_new = last_direction_old | dir_opposite;
12407
12408         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
12409                                                          last_direction_new);
12410         direction |= dir;
12411       }
12412     }
12413
12414     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
12415                                                         new_element);
12416     if (last_element_new != EL_UNDEFINED)
12417       MergeAndCloseNeighbourElements(x, y, &new_element,
12418                                      last_x, last_y, &last_element_new,
12419                                      getClosedBelt, change_level);
12420   }
12421   else if (IS_ACID_POOL_OR_ACID(new_element))
12422   {
12423     int last_element_new = EL_UNDEFINED;
12424     int direction = MV_NONE;
12425     int i;
12426
12427     // if old element is of same kind, keep all existing directions
12428     if (IS_ACID_POOL_OR_ACID(old_element))
12429       direction |= getOpenDirectionFromPool(old_element);
12430
12431     for (i = 0; i < NUM_DIRECTIONS; i++)
12432     {
12433       int xx = x + xy[i].x;
12434       int yy = y + xy[i].y;
12435
12436       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12437           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
12438       {
12439         int dir = MV_DIR_FROM_BIT(i);
12440         int dir_opposite = MV_DIR_OPPOSITE(dir);
12441         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12442         int last_direction_old = getOpenDirectionFromPool(last_element_old);
12443         int last_direction_new = last_direction_old | dir_opposite;
12444
12445         last_element_new = getPoolFromOpenDirection(last_direction_new);
12446
12447         direction |= dir;
12448       }
12449     }
12450
12451     // special corrections needed for intuitively correct acid pool drawing
12452     if (last_element_new == EL_EMPTY)
12453       last_element_new = new_element;
12454     else if (last_element_new != EL_UNDEFINED)
12455       new_element = last_element_new;
12456
12457     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
12458
12459     if (last_element_new != EL_UNDEFINED)
12460       MergeAndCloseNeighbourElements(x, y, &new_element,
12461                                      last_x, last_y, &last_element_new,
12462                                      getClosedPool, change_level);
12463   }
12464   else if (IS_EMC_PILLAR(new_element))
12465   {
12466     int last_element_new = EL_UNDEFINED;
12467     int direction = MV_NONE;
12468     int i;
12469
12470     // if old element is of same kind, keep all existing directions
12471     if (IS_EMC_PILLAR(old_element))
12472       direction |= getOpenDirectionFromPillar(old_element);
12473
12474     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12475     {
12476       int xx = x + xy[i].x;
12477       int yy = y + xy[i].y;
12478
12479       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12480           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
12481       {
12482         int dir = MV_DIR_FROM_BIT(i);
12483         int dir_opposite = MV_DIR_OPPOSITE(dir);
12484         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12485         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
12486         int last_direction_new = last_direction_old | dir_opposite;
12487
12488         last_element_new = getPillarFromOpenDirection(last_direction_new);
12489
12490         direction |= dir;
12491       }
12492     }
12493
12494     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
12495
12496     if (last_element_new != EL_UNDEFINED)
12497       MergeAndCloseNeighbourElements(x, y, &new_element,
12498                                      last_x, last_y, &last_element_new,
12499                                      getClosedPillar, change_level);
12500   }
12501   else if (IS_DC_STEELWALL_2(new_element))
12502   {
12503     int last_element_new = EL_UNDEFINED;
12504     int direction = MV_NONE;
12505     int i;
12506
12507     // if old element is of same kind, keep all existing directions
12508     if (IS_DC_STEELWALL_2(old_element))
12509       direction |= getOpenDirectionFromSteel2(old_element);
12510
12511     for (i = 0; i < NUM_DIRECTIONS; i++)
12512     {
12513       int xx = x + xy[i].x;
12514       int yy = y + xy[i].y;
12515
12516       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12517           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
12518       {
12519         int dir = MV_DIR_FROM_BIT(i);
12520         int dir_opposite = MV_DIR_OPPOSITE(dir);
12521         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12522         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
12523         int last_direction_new = last_direction_old | dir_opposite;
12524
12525         last_element_new = getSteel2FromOpenDirection(last_direction_new);
12526
12527         direction |= dir;
12528       }
12529     }
12530
12531     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
12532
12533     if (last_element_new != EL_UNDEFINED)
12534       MergeAndCloseNeighbourElements(x, y, &new_element,
12535                                      last_x, last_y, &last_element_new,
12536                                      getClosedSteel2, change_level);
12537   }
12538   else if (IS_SP_CHIP(new_element))
12539   {
12540     int last_element_new = EL_UNDEFINED;
12541     int direction = MV_NONE;
12542     int i;
12543
12544     // (do not keep existing directions, regardless of kind of old element)
12545
12546     for (i = 0; i < NUM_DIRECTIONS; i++)
12547     {
12548       int xx = x + xy[i].x;
12549       int yy = y + xy[i].y;
12550
12551       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12552           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
12553       {
12554         int dir = MV_DIR_FROM_BIT(i);
12555         int dir_opposite = MV_DIR_OPPOSITE(dir);
12556         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12557         int last_direction_old = getOpenDirectionFromChip(last_element_old);
12558         int last_direction_new = last_direction_old | dir_opposite;
12559
12560         if (last_direction_old == MV_NONE)
12561         {
12562           last_element_new = getChipFromOpenDirection(last_direction_new);
12563           direction |= dir;
12564         }
12565         else if (last_direction_old & (dir | dir_opposite))
12566         {
12567           direction |= MV_DIR_OPPOSITE(last_direction_old);
12568         }
12569         else
12570         {
12571           direction |= MV_DIR_OPPOSITE(dir);
12572         }
12573       }
12574     }
12575
12576     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
12577
12578     if (last_element_new != EL_UNDEFINED)
12579       MergeAndCloseNeighbourElements(x, y, &new_element,
12580                                      last_x, last_y, &last_element_new,
12581                                      getClosedChip, change_level);
12582   }
12583   else if (IS_SP_HARDWARE_BASE(new_element))
12584   {
12585     int nr = GetSimpleRandom(6);
12586
12587     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
12588                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
12589                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
12590                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
12591                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
12592   }
12593   else if (new_element == EL_SP_HARDWARE_GREEN ||
12594            new_element == EL_SP_HARDWARE_BLUE ||
12595            new_element == EL_SP_HARDWARE_RED)
12596   {
12597     int nr = GetSimpleRandom(3);
12598
12599     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
12600                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
12601   }
12602   else if (IS_GROUP_ELEMENT(new_element))
12603   {
12604     boolean connected_drawing = FALSE;
12605     int i;
12606
12607     for (i = 0; i < NUM_DIRECTIONS; i++)
12608     {
12609       int xx = x + xy[i].x;
12610       int yy = y + xy[i].y;
12611
12612       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12613           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
12614         connected_drawing = TRUE;
12615     }
12616
12617     if (!connected_drawing)
12618       ResolveGroupElement(new_element);
12619
12620     new_element = GetElementFromGroupElement(new_element);
12621   }
12622   else if (IS_BELT_SWITCH(old_element))
12623   {
12624     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
12625     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
12626
12627     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
12628                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
12629
12630     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
12631   }
12632   else
12633   {
12634     static int swappable_elements[][2] =
12635     {
12636       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
12637       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
12638       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
12639       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
12640       { EL_EMERALD,                     EL_WALL_EMERALD                 },
12641       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
12642       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
12643       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
12644       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
12645       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
12646       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
12647       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
12648       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
12649       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
12650       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
12651       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
12652       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
12653       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
12654       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
12655       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
12656       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
12657       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
12658       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
12659       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
12660       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
12661       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
12662       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
12663       { EL_PEARL,                       EL_WALL_PEARL                   },
12664       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
12665       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
12666       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
12667       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
12668       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
12669       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
12670       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
12671       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
12672       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
12673       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
12674       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
12675       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
12676       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
12677       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
12678       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
12679       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
12680
12681       { -1,                             -1                              },
12682     };
12683     static int rotatable_elements_4[][4] =
12684     {
12685       {
12686         EL_BUG_UP,
12687         EL_BUG_RIGHT,
12688         EL_BUG_DOWN,
12689         EL_BUG_LEFT
12690       },
12691       {
12692         EL_SPACESHIP_UP,
12693         EL_SPACESHIP_RIGHT,
12694         EL_SPACESHIP_DOWN,
12695         EL_SPACESHIP_LEFT
12696       },
12697       {
12698         EL_BD_BUTTERFLY_UP,
12699         EL_BD_BUTTERFLY_RIGHT,
12700         EL_BD_BUTTERFLY_DOWN,
12701         EL_BD_BUTTERFLY_LEFT
12702       },
12703       {
12704         EL_BD_FIREFLY_UP,
12705         EL_BD_FIREFLY_RIGHT,
12706         EL_BD_FIREFLY_DOWN,
12707         EL_BD_FIREFLY_LEFT
12708       },
12709       {
12710         EL_PACMAN_UP,
12711         EL_PACMAN_RIGHT,
12712         EL_PACMAN_DOWN,
12713         EL_PACMAN_LEFT
12714       },
12715       {
12716         EL_YAMYAM_UP,
12717         EL_YAMYAM_RIGHT,
12718         EL_YAMYAM_DOWN,
12719         EL_YAMYAM_LEFT
12720       },
12721       {
12722         EL_ARROW_UP,
12723         EL_ARROW_RIGHT,
12724         EL_ARROW_DOWN,
12725         EL_ARROW_LEFT
12726       },
12727       {
12728         EL_SP_PORT_UP,
12729         EL_SP_PORT_RIGHT,
12730         EL_SP_PORT_DOWN,
12731         EL_SP_PORT_LEFT
12732       },
12733       {
12734         EL_SP_GRAVITY_PORT_UP,
12735         EL_SP_GRAVITY_PORT_RIGHT,
12736         EL_SP_GRAVITY_PORT_DOWN,
12737         EL_SP_GRAVITY_PORT_LEFT
12738       },
12739       {
12740         EL_SP_GRAVITY_ON_PORT_UP,
12741         EL_SP_GRAVITY_ON_PORT_RIGHT,
12742         EL_SP_GRAVITY_ON_PORT_DOWN,
12743         EL_SP_GRAVITY_ON_PORT_LEFT
12744       },
12745       {
12746         EL_SP_GRAVITY_OFF_PORT_UP,
12747         EL_SP_GRAVITY_OFF_PORT_RIGHT,
12748         EL_SP_GRAVITY_OFF_PORT_DOWN,
12749         EL_SP_GRAVITY_OFF_PORT_LEFT
12750       },
12751       {
12752         EL_MOLE_UP,
12753         EL_MOLE_RIGHT,
12754         EL_MOLE_DOWN,
12755         EL_MOLE_LEFT
12756       },
12757       {
12758         EL_BALLOON_SWITCH_UP,
12759         EL_BALLOON_SWITCH_RIGHT,
12760         EL_BALLOON_SWITCH_DOWN,
12761         EL_BALLOON_SWITCH_LEFT
12762       },
12763       {
12764         EL_MM_MCDUFFIN_UP,
12765         EL_MM_MCDUFFIN_RIGHT,
12766         EL_MM_MCDUFFIN_DOWN,
12767         EL_MM_MCDUFFIN_LEFT
12768       },
12769       {
12770         EL_MM_MIRROR_FIXED_1,
12771         EL_MM_MIRROR_FIXED_4,
12772         EL_MM_MIRROR_FIXED_3,
12773         EL_MM_MIRROR_FIXED_2
12774       },
12775       {
12776         EL_MM_STEEL_GRID_FIXED_1,
12777         EL_MM_STEEL_GRID_FIXED_4,
12778         EL_MM_STEEL_GRID_FIXED_2,
12779         EL_MM_STEEL_GRID_FIXED_3
12780       },
12781       {
12782         EL_MM_WOODEN_GRID_FIXED_1,
12783         EL_MM_WOODEN_GRID_FIXED_4,
12784         EL_MM_WOODEN_GRID_FIXED_2,
12785         EL_MM_WOODEN_GRID_FIXED_3
12786       },
12787       {
12788         EL_MM_POLARIZER_CROSS_1,
12789         EL_MM_POLARIZER_CROSS_4,
12790         EL_MM_POLARIZER_CROSS_3,
12791         EL_MM_POLARIZER_CROSS_2
12792       },
12793       {
12794         EL_MM_PACMAN_UP,
12795         EL_MM_PACMAN_RIGHT,
12796         EL_MM_PACMAN_DOWN,
12797         EL_MM_PACMAN_LEFT
12798       },
12799       {
12800         EL_DF_LASER_UP,
12801         EL_DF_LASER_RIGHT,
12802         EL_DF_LASER_DOWN,
12803         EL_DF_LASER_LEFT
12804       },
12805       {
12806         EL_DF_RECEIVER_UP,
12807         EL_DF_RECEIVER_RIGHT,
12808         EL_DF_RECEIVER_DOWN,
12809         EL_DF_RECEIVER_LEFT
12810       },
12811       {
12812         EL_DF_SLOPE_1,
12813         EL_DF_SLOPE_4,
12814         EL_DF_SLOPE_3,
12815         EL_DF_SLOPE_2
12816       },
12817
12818       {
12819         -1,
12820       },
12821     };
12822     static int rotatable_elements_8[][8] =
12823     {
12824       {
12825         EL_DF_STEEL_GRID_FIXED_1,
12826         EL_DF_STEEL_GRID_FIXED_8,
12827         EL_DF_STEEL_GRID_FIXED_7,
12828         EL_DF_STEEL_GRID_FIXED_6,
12829         EL_DF_STEEL_GRID_FIXED_5,
12830         EL_DF_STEEL_GRID_FIXED_4,
12831         EL_DF_STEEL_GRID_FIXED_3,
12832         EL_DF_STEEL_GRID_FIXED_2
12833       },
12834       {
12835         EL_DF_WOODEN_GRID_FIXED_1,
12836         EL_DF_WOODEN_GRID_FIXED_8,
12837         EL_DF_WOODEN_GRID_FIXED_7,
12838         EL_DF_WOODEN_GRID_FIXED_6,
12839         EL_DF_WOODEN_GRID_FIXED_5,
12840         EL_DF_WOODEN_GRID_FIXED_4,
12841         EL_DF_WOODEN_GRID_FIXED_3,
12842         EL_DF_WOODEN_GRID_FIXED_2
12843       },
12844       {
12845         EL_DF_STEEL_GRID_ROTATING_1,
12846         EL_DF_STEEL_GRID_ROTATING_8,
12847         EL_DF_STEEL_GRID_ROTATING_7,
12848         EL_DF_STEEL_GRID_ROTATING_6,
12849         EL_DF_STEEL_GRID_ROTATING_5,
12850         EL_DF_STEEL_GRID_ROTATING_4,
12851         EL_DF_STEEL_GRID_ROTATING_3,
12852         EL_DF_STEEL_GRID_ROTATING_2
12853       },
12854       {
12855         EL_DF_WOODEN_GRID_ROTATING_1,
12856         EL_DF_WOODEN_GRID_ROTATING_8,
12857         EL_DF_WOODEN_GRID_ROTATING_7,
12858         EL_DF_WOODEN_GRID_ROTATING_6,
12859         EL_DF_WOODEN_GRID_ROTATING_5,
12860         EL_DF_WOODEN_GRID_ROTATING_4,
12861         EL_DF_WOODEN_GRID_ROTATING_3,
12862         EL_DF_WOODEN_GRID_ROTATING_2
12863       },
12864
12865       {
12866         -1,
12867       },
12868     };
12869     static int rotatable_elements_16[][16] =
12870     {
12871       {
12872         EL_MM_MIRROR_1,
12873         EL_MM_MIRROR_16,
12874         EL_MM_MIRROR_15,
12875         EL_MM_MIRROR_14,
12876         EL_MM_MIRROR_13,
12877         EL_MM_MIRROR_12,
12878         EL_MM_MIRROR_11,
12879         EL_MM_MIRROR_10,
12880         EL_MM_MIRROR_9,
12881         EL_MM_MIRROR_8,
12882         EL_MM_MIRROR_7,
12883         EL_MM_MIRROR_6,
12884         EL_MM_MIRROR_5,
12885         EL_MM_MIRROR_4,
12886         EL_MM_MIRROR_3,
12887         EL_MM_MIRROR_2
12888       },
12889       {
12890         EL_MM_TELEPORTER_5,
12891         EL_MM_TELEPORTER_4,
12892         EL_MM_TELEPORTER_3,
12893         EL_MM_TELEPORTER_2,
12894         EL_MM_TELEPORTER_1,
12895         EL_MM_TELEPORTER_16,
12896         EL_MM_TELEPORTER_15,
12897         EL_MM_TELEPORTER_14,
12898         EL_MM_TELEPORTER_13,
12899         EL_MM_TELEPORTER_12,
12900         EL_MM_TELEPORTER_11,
12901         EL_MM_TELEPORTER_10,
12902         EL_MM_TELEPORTER_9,
12903         EL_MM_TELEPORTER_8,
12904         EL_MM_TELEPORTER_7,
12905         EL_MM_TELEPORTER_6
12906       },
12907       {
12908         EL_MM_TELEPORTER_RED_5,
12909         EL_MM_TELEPORTER_RED_4,
12910         EL_MM_TELEPORTER_RED_3,
12911         EL_MM_TELEPORTER_RED_2,
12912         EL_MM_TELEPORTER_RED_1,
12913         EL_MM_TELEPORTER_RED_16,
12914         EL_MM_TELEPORTER_RED_15,
12915         EL_MM_TELEPORTER_RED_14,
12916         EL_MM_TELEPORTER_RED_13,
12917         EL_MM_TELEPORTER_RED_12,
12918         EL_MM_TELEPORTER_RED_11,
12919         EL_MM_TELEPORTER_RED_10,
12920         EL_MM_TELEPORTER_RED_9,
12921         EL_MM_TELEPORTER_RED_8,
12922         EL_MM_TELEPORTER_RED_7,
12923         EL_MM_TELEPORTER_RED_6
12924       },
12925       {
12926         EL_MM_TELEPORTER_YELLOW_5,
12927         EL_MM_TELEPORTER_YELLOW_4,
12928         EL_MM_TELEPORTER_YELLOW_3,
12929         EL_MM_TELEPORTER_YELLOW_2,
12930         EL_MM_TELEPORTER_YELLOW_1,
12931         EL_MM_TELEPORTER_YELLOW_16,
12932         EL_MM_TELEPORTER_YELLOW_15,
12933         EL_MM_TELEPORTER_YELLOW_14,
12934         EL_MM_TELEPORTER_YELLOW_13,
12935         EL_MM_TELEPORTER_YELLOW_12,
12936         EL_MM_TELEPORTER_YELLOW_11,
12937         EL_MM_TELEPORTER_YELLOW_10,
12938         EL_MM_TELEPORTER_YELLOW_9,
12939         EL_MM_TELEPORTER_YELLOW_8,
12940         EL_MM_TELEPORTER_YELLOW_7,
12941         EL_MM_TELEPORTER_YELLOW_6
12942       },
12943       {
12944         EL_MM_TELEPORTER_GREEN_5,
12945         EL_MM_TELEPORTER_GREEN_4,
12946         EL_MM_TELEPORTER_GREEN_3,
12947         EL_MM_TELEPORTER_GREEN_2,
12948         EL_MM_TELEPORTER_GREEN_1,
12949         EL_MM_TELEPORTER_GREEN_16,
12950         EL_MM_TELEPORTER_GREEN_15,
12951         EL_MM_TELEPORTER_GREEN_14,
12952         EL_MM_TELEPORTER_GREEN_13,
12953         EL_MM_TELEPORTER_GREEN_12,
12954         EL_MM_TELEPORTER_GREEN_11,
12955         EL_MM_TELEPORTER_GREEN_10,
12956         EL_MM_TELEPORTER_GREEN_9,
12957         EL_MM_TELEPORTER_GREEN_8,
12958         EL_MM_TELEPORTER_GREEN_7,
12959         EL_MM_TELEPORTER_GREEN_6
12960       },
12961       {
12962         EL_MM_TELEPORTER_BLUE_5,
12963         EL_MM_TELEPORTER_BLUE_4,
12964         EL_MM_TELEPORTER_BLUE_3,
12965         EL_MM_TELEPORTER_BLUE_2,
12966         EL_MM_TELEPORTER_BLUE_1,
12967         EL_MM_TELEPORTER_BLUE_16,
12968         EL_MM_TELEPORTER_BLUE_15,
12969         EL_MM_TELEPORTER_BLUE_14,
12970         EL_MM_TELEPORTER_BLUE_13,
12971         EL_MM_TELEPORTER_BLUE_12,
12972         EL_MM_TELEPORTER_BLUE_11,
12973         EL_MM_TELEPORTER_BLUE_10,
12974         EL_MM_TELEPORTER_BLUE_9,
12975         EL_MM_TELEPORTER_BLUE_8,
12976         EL_MM_TELEPORTER_BLUE_7,
12977         EL_MM_TELEPORTER_BLUE_6
12978       },
12979       {
12980         EL_MM_POLARIZER_1,
12981         EL_MM_POLARIZER_16,
12982         EL_MM_POLARIZER_15,
12983         EL_MM_POLARIZER_14,
12984         EL_MM_POLARIZER_13,
12985         EL_MM_POLARIZER_12,
12986         EL_MM_POLARIZER_11,
12987         EL_MM_POLARIZER_10,
12988         EL_MM_POLARIZER_9,
12989         EL_MM_POLARIZER_8,
12990         EL_MM_POLARIZER_7,
12991         EL_MM_POLARIZER_6,
12992         EL_MM_POLARIZER_5,
12993         EL_MM_POLARIZER_4,
12994         EL_MM_POLARIZER_3,
12995         EL_MM_POLARIZER_2
12996       },
12997       {
12998         EL_DF_MIRROR_1,
12999         EL_DF_MIRROR_16,
13000         EL_DF_MIRROR_15,
13001         EL_DF_MIRROR_14,
13002         EL_DF_MIRROR_13,
13003         EL_DF_MIRROR_12,
13004         EL_DF_MIRROR_11,
13005         EL_DF_MIRROR_10,
13006         EL_DF_MIRROR_9,
13007         EL_DF_MIRROR_8,
13008         EL_DF_MIRROR_7,
13009         EL_DF_MIRROR_6,
13010         EL_DF_MIRROR_5,
13011         EL_DF_MIRROR_4,
13012         EL_DF_MIRROR_3,
13013         EL_DF_MIRROR_2
13014       },
13015       {
13016         EL_DF_MIRROR_ROTATING_1,
13017         EL_DF_MIRROR_ROTATING_16,
13018         EL_DF_MIRROR_ROTATING_15,
13019         EL_DF_MIRROR_ROTATING_14,
13020         EL_DF_MIRROR_ROTATING_13,
13021         EL_DF_MIRROR_ROTATING_12,
13022         EL_DF_MIRROR_ROTATING_11,
13023         EL_DF_MIRROR_ROTATING_10,
13024         EL_DF_MIRROR_ROTATING_9,
13025         EL_DF_MIRROR_ROTATING_8,
13026         EL_DF_MIRROR_ROTATING_7,
13027         EL_DF_MIRROR_ROTATING_6,
13028         EL_DF_MIRROR_ROTATING_5,
13029         EL_DF_MIRROR_ROTATING_4,
13030         EL_DF_MIRROR_ROTATING_3,
13031         EL_DF_MIRROR_ROTATING_2
13032       },
13033       {
13034         EL_DF_MIRROR_FIXED_1,
13035         EL_DF_MIRROR_FIXED_16,
13036         EL_DF_MIRROR_FIXED_15,
13037         EL_DF_MIRROR_FIXED_14,
13038         EL_DF_MIRROR_FIXED_13,
13039         EL_DF_MIRROR_FIXED_12,
13040         EL_DF_MIRROR_FIXED_11,
13041         EL_DF_MIRROR_FIXED_10,
13042         EL_DF_MIRROR_FIXED_9,
13043         EL_DF_MIRROR_FIXED_8,
13044         EL_DF_MIRROR_FIXED_7,
13045         EL_DF_MIRROR_FIXED_6,
13046         EL_DF_MIRROR_FIXED_5,
13047         EL_DF_MIRROR_FIXED_4,
13048         EL_DF_MIRROR_FIXED_3,
13049         EL_DF_MIRROR_FIXED_2
13050       },
13051
13052       {
13053         -1,
13054       },
13055     };
13056     int i, j;
13057
13058     for (i = 0; swappable_elements[i][0] != -1; i++)
13059     {
13060       int element1 = swappable_elements[i][0];
13061       int element2 = swappable_elements[i][1];
13062
13063       if (old_element == element1 || old_element == element2)
13064         new_element = (old_element == element1 ? element2 : element1);
13065     }
13066
13067     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
13068     {
13069       for (j = 0; j < 4; j++)
13070       {
13071         int element = rotatable_elements_4[i][j];
13072
13073         if (old_element == element)
13074           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
13075                          button == 2 ? rotatable_elements_4[i][0]           :
13076                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
13077                          old_element);
13078       }
13079     }
13080
13081     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
13082     {
13083       for (j = 0; j < 8; j++)
13084       {
13085         int element = rotatable_elements_8[i][j];
13086
13087         if (old_element == element)
13088           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
13089                          button == 2 ? rotatable_elements_8[i][0]           :
13090                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
13091                          old_element);
13092       }
13093     }
13094
13095     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
13096     {
13097       for (j = 0; j < 16; j++)
13098       {
13099         int element = rotatable_elements_16[i][j];
13100
13101         if (old_element == element)
13102           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
13103                          button == 2 ? rotatable_elements_16[i][0]             :
13104                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
13105                          old_element);
13106       }
13107     }
13108
13109     if (old_element != new_element)
13110     {
13111       int max_infotext_len = getMaxInfoTextLength();
13112       char infotext[MAX_OUTPUT_LINESIZE + 1];
13113
13114       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
13115       infotext[max_infotext_len] = '\0';
13116
13117       ClearEditorGadgetInfoText();
13118
13119       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
13120                 infotext);
13121     }
13122   }
13123
13124   if (IS_MM_WALL_EDITOR(new_element))
13125     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
13126   else
13127     SetElementSimple(x, y, new_element, change_level);
13128
13129   last_x = x;
13130   last_y = y;
13131 }
13132
13133 static void ResetIntelliDraw(void)
13134 {
13135   int x, y;
13136
13137   for (x = 0; x < lev_fieldx; x++)
13138     for (y = 0; y < lev_fieldy; y++)
13139       IntelliDrawBuffer[x][y] = Tile[x][y];
13140
13141   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
13142 }
13143
13144 static boolean draw_mode_hires = FALSE;
13145
13146 static boolean isHiresTileElement(int element)
13147 {
13148   return (IS_MM_WALL(element)        || element == EL_EMPTY);
13149 }
13150
13151 static boolean isHiresDrawElement(int element)
13152 {
13153   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
13154 }
13155
13156 static int numHiresTiles(int element)
13157 {
13158   if (IS_MM_WALL(element))
13159     return get_number_of_bits(MM_WALL_BITS(element));
13160
13161   return 1;
13162 }
13163
13164 static void SetDrawModeHiRes(int element)
13165 {
13166   draw_mode_hires =
13167     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13168      isHiresDrawElement(element));
13169 }
13170
13171 static boolean getDrawModeHiRes(void)
13172 {
13173   return draw_mode_hires;
13174 }
13175
13176 static int getLoResScreenPos(int pos)
13177 {
13178   return (getDrawModeHiRes() ? pos / 2 : pos);
13179 }
13180
13181 static int getLoResScreenMod(int pos)
13182 {
13183   return (getDrawModeHiRes() ? pos % 2 : 0);
13184 }
13185
13186 static void SetElementExt(int x, int y, int dx, int dy, int element,
13187                           boolean change_level, int button)
13188 {
13189   if (element < 0)
13190     SetElementSimple(x, y, Tile[x][y], change_level);
13191   else if (GetKeyModState() & KMOD_Shift)
13192     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
13193   else
13194     SetElementSimpleExt(x, y, dx, dy, element, change_level);
13195 }
13196
13197 static void SetElement(int x, int y, int element)
13198 {
13199   SetElementExt(x, y, 0, 0, element, TRUE, -1);
13200 }
13201
13202 static void SetElementButton(int x, int y, int dx, int dy, int element,
13203                              int button)
13204 {
13205   SetElementExt(x, y, dx, dy, element, TRUE, button);
13206 }
13207
13208 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
13209 {
13210   int lx = getLoResScreenPos(sx2) + level_xpos;
13211   int ly = getLoResScreenPos(sy2) + level_ypos;
13212   int dx = getLoResScreenMod(sx2);
13213   int dy = getLoResScreenMod(sy2);
13214
13215   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
13216 }
13217
13218 static void SetLevelElementHiRes(int lx2, int ly2, int element)
13219 {
13220   int lx = lx2 / 2;
13221   int ly = ly2 / 2;
13222   int dx = lx2 % 2;
13223   int dy = ly2 % 2;
13224
13225   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
13226 }
13227
13228 static int getLevelElementHiRes(int lx2, int ly2)
13229 {
13230   int lx = lx2 / 2;
13231   int ly = ly2 / 2;
13232   int dx = lx2 % 2;
13233   int dy = ly2 % 2;
13234   int element = Tile[lx][ly];
13235   unsigned int bitmask = (dx + 1) << (dy * 2);
13236
13237   if (IS_MM_WALL(element))
13238   {
13239     if (element & bitmask)
13240       return map_mm_wall_element(element);
13241     else
13242       return EL_EMPTY;
13243   }
13244
13245   return element;
13246 }
13247
13248 static void DrawLineElement(int x, int y, int element, boolean change_level)
13249 {
13250   SetElementHiRes(x, y, element, change_level);
13251 }
13252
13253 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
13254                      int element, boolean change_level)
13255 {
13256   int xsize = ABS(to_x - from_x);
13257   int ysize = ABS(to_y - from_y);
13258   int dx = (to_x < from_x ? -1 : +1);
13259   int dy = (to_y < from_y ? -1 : +1);
13260   int i;
13261
13262   if (from_y == to_y)                   // horizontal line
13263   {
13264     for (i = 0; i <= xsize; i++)
13265       DrawLineElement(from_x + i * dx, from_y, element, change_level);
13266   }
13267   else if (from_x == to_x)              // vertical line
13268   {
13269     for (i = 0; i <= ysize; i++)
13270       DrawLineElement(from_x, from_y + i * dy, element, change_level);
13271   }
13272   else                                  // diagonal line
13273   {
13274     if (ysize < xsize)                  // a < 1
13275     {
13276       float a = (float)ysize / (float)xsize;
13277
13278       for (i = 0; i <= xsize; i++)
13279       {
13280         int x = dx * i;
13281         int y = dy * (int)(a * i + 0.5);
13282
13283         DrawLineElement(from_x + x, from_y + y, element, change_level);
13284       }
13285     }
13286     else                                // a >= 1
13287     {
13288       float a = (float)xsize / (float)ysize;
13289
13290       for (i = 0; i <= ysize; i++)
13291       {
13292         int x = dx * (int)(a * i + 0.5);
13293         int y = dy * i;
13294
13295         DrawLineElement(from_x + x, from_y + y, element, change_level);
13296       }
13297     }
13298   }
13299 }
13300
13301 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
13302                     int element, boolean change_level)
13303 {
13304   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
13305   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
13306   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
13307   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
13308 }
13309
13310 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
13311                           int element, boolean change_level)
13312 {
13313   int y;
13314
13315   if (from_y > to_y)
13316     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
13317
13318   for (y = from_y; y <= to_y; y++)
13319     DrawLine(from_x, y, to_x, y, element, change_level);
13320 }
13321
13322 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
13323                        int element, boolean change_level)
13324 {
13325   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
13326   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
13327   int len_x = ABS(to_x - from_x);
13328   int len_y = ABS(to_y - from_y);
13329   int radius, x, y;
13330
13331   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
13332
13333   // not optimal (some points get drawn twice) but simple,
13334   // and fast enough for the few points we are drawing
13335
13336   for (x = 0; x <= radius; x++)
13337   {
13338     int sx, sy, sx2, sy2, lx, ly;
13339
13340     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
13341
13342     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13343     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13344     sx = getLoResScreenPos(sx2);
13345     sy = getLoResScreenPos(sy2);
13346     lx = sx + level_xpos;
13347     ly = sy + level_ypos;
13348
13349     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13350       DrawLineElement(sx2, sy2, element, change_level);
13351   }
13352
13353   for (y = 0; y <= radius; y++)
13354   {
13355     int sx, sy, sx2, sy2, lx, ly;
13356
13357     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
13358
13359     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13360     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13361     sx = getLoResScreenPos(sx2);
13362     sy = getLoResScreenPos(sy2);
13363     lx = sx + level_xpos;
13364     ly = sy + level_ypos;
13365
13366     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13367       DrawLineElement(sx2, sy2, element, change_level);
13368   }
13369 }
13370
13371 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
13372                     int element, boolean change_level)
13373 {
13374   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13375   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13376
13377   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13378 }
13379
13380 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
13381
13382 #if DRAW_CIRCLES_BUTTON_AVAILABLE
13383 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
13384                        int element, boolean change_level)
13385 {
13386   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13387   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13388   int mirror_to_x2 = from_x - (to_x2 - from_x);
13389   int mirror_to_y2 = from_y - (to_y2 - from_y);
13390
13391   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13392   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
13393   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
13394   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element, change_level);
13395 }
13396 #endif
13397
13398 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
13399 {
13400   int from_sx, from_sy;
13401   int to_sx, to_sy;
13402
13403   if (from_x > to_x)
13404     swap_numbers(&from_x, &to_x);
13405
13406   if (from_y > to_y)
13407     swap_numbers(&from_y, &to_y);
13408
13409   from_sx = SX + from_x * ed_tilesize;
13410   from_sy = SY + from_y * ed_tilesize;
13411   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
13412   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
13413
13414   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
13415   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
13416   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
13417   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
13418
13419   if (from_x == to_x && from_y == to_y)
13420     MarkTileDirty(from_x/2, from_y/2);
13421   else
13422     redraw_mask |= REDRAW_FIELD;
13423 }
13424
13425 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
13426                         int element, boolean change_level)
13427 {
13428   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
13429 }
13430
13431 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
13432                        int element, boolean change_level)
13433 {
13434   if (element == -1 || change_level)
13435     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
13436   else
13437     DrawAreaBorder(from_x, from_y, to_x, to_y);
13438 }
13439
13440 // values for CopyBrushExt()
13441 #define CB_AREA_TO_BRUSH                0
13442 #define CB_BRUSH_TO_CURSOR              1
13443 #define CB_BRUSH_TO_LEVEL               2
13444 #define CB_DELETE_OLD_CURSOR            3
13445 #define CB_DUMP_BRUSH                   4
13446 #define CB_DUMP_BRUSH_SMALL             5
13447 #define CB_CLIPBOARD_TO_BRUSH           6
13448 #define CB_BRUSH_TO_CLIPBOARD           7
13449 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
13450 #define CB_UPDATE_BRUSH_POSITION        9
13451 #define CB_FLIP_BRUSH_X                 10
13452 #define CB_FLIP_BRUSH_Y                 11
13453 #define CB_FLIP_BRUSH_XY                12
13454
13455 #define MAX_CB_PART_SIZE        10
13456 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
13457 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
13458 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
13459                                  MAX_CB_NUM_LINES *     \
13460                                  MAX_CB_PART_SIZE)
13461
13462 static int getFlippedTileExt(int map[], int element)
13463 {
13464   int i;
13465
13466   for (i = 0; map[i] != -1; i++)
13467     if (map[i] == element)
13468       return map[i ^ 1];        // get flipped element by flipping LSB of index
13469
13470   return element;
13471 }
13472
13473 static int getFlippedTileX(int element)
13474 {
13475   int map[] =
13476   {
13477     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_RIGHT,
13478     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_RIGHT,
13479     EL_BUG_LEFT,                        EL_BUG_RIGHT,
13480     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_RIGHT,
13481     EL_PACMAN_LEFT,                     EL_PACMAN_RIGHT,
13482     EL_ARROW_LEFT,                      EL_ARROW_RIGHT,
13483     EL_MOLE_LEFT,                       EL_MOLE_RIGHT,
13484     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_RIGHT,
13485     EL_YAMYAM_LEFT,                     EL_YAMYAM_RIGHT,
13486     EL_SP_PORT_LEFT,                    EL_SP_PORT_RIGHT,
13487     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_RIGHT,
13488     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_RIGHT,
13489     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_RIGHT,
13490     EL_CONVEYOR_BELT_1_LEFT,            EL_CONVEYOR_BELT_1_RIGHT,
13491     EL_CONVEYOR_BELT_2_LEFT,            EL_CONVEYOR_BELT_2_RIGHT,
13492     EL_CONVEYOR_BELT_3_LEFT,            EL_CONVEYOR_BELT_3_RIGHT,
13493     EL_CONVEYOR_BELT_4_LEFT,            EL_CONVEYOR_BELT_4_RIGHT,
13494     EL_SPRING_LEFT,                     EL_SPRING_RIGHT,
13495     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_RIGHT,
13496     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_VERTICAL_RIGHT,
13497     EL_TUBE_LEFT_UP,                    EL_TUBE_RIGHT_UP,
13498     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_DOWN,
13499     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_RIGHT,
13500     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_TOPRIGHT,
13501     EL_DC_STEELWALL_1_BOTTOMLEFT,       EL_DC_STEELWALL_1_BOTTOMRIGHT,
13502     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_TOPRIGHT_2,
13503     EL_DC_STEELWALL_1_BOTTOMLEFT_2,     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13504     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_RIGHT,
13505     EL_ACID_POOL_TOPLEFT,               EL_ACID_POOL_TOPRIGHT,
13506     EL_ACID_POOL_BOTTOMLEFT,            EL_ACID_POOL_BOTTOMRIGHT,
13507
13508     -1
13509   };
13510
13511   return getFlippedTileExt(map, element);
13512 }
13513
13514 static int getFlippedTileY(int element)
13515 {
13516   int map[] =
13517   {
13518     EL_BD_BUTTERFLY_UP,                 EL_BD_BUTTERFLY_DOWN,
13519     EL_BD_FIREFLY_UP,                   EL_BD_FIREFLY_DOWN,
13520     EL_BUG_UP,                          EL_BUG_DOWN,
13521     EL_SPACESHIP_UP,                    EL_SPACESHIP_DOWN,
13522     EL_PACMAN_UP,                       EL_PACMAN_DOWN,
13523     EL_ARROW_UP,                        EL_ARROW_DOWN,
13524     EL_MOLE_UP,                         EL_MOLE_DOWN,
13525     EL_BALLOON_SWITCH_UP,               EL_BALLOON_SWITCH_DOWN,
13526     EL_YAMYAM_UP,                       EL_YAMYAM_DOWN,
13527     EL_SP_PORT_UP,                      EL_SP_PORT_DOWN,
13528     EL_SP_GRAVITY_PORT_UP,              EL_SP_GRAVITY_PORT_DOWN,
13529     EL_SP_GRAVITY_ON_PORT_UP,           EL_SP_GRAVITY_ON_PORT_DOWN,
13530     EL_SP_GRAVITY_OFF_PORT_UP,          EL_SP_GRAVITY_OFF_PORT_DOWN,
13531     EL_SP_CHIP_TOP,                     EL_SP_CHIP_BOTTOM,
13532     EL_TUBE_HORIZONTAL_UP,              EL_TUBE_HORIZONTAL_DOWN,
13533     EL_TUBE_LEFT_UP,                    EL_TUBE_LEFT_DOWN,
13534     EL_TUBE_RIGHT_UP,                   EL_TUBE_RIGHT_DOWN,
13535     EL_DC_STEELWALL_1_TOP,              EL_DC_STEELWALL_1_BOTTOM,
13536     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_BOTTOMLEFT,
13537     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMRIGHT,
13538     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13539     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13540     EL_DC_STEELWALL_2_TOP,              EL_DC_STEELWALL_2_BOTTOM,
13541     EL_EMC_WALL_1,                      EL_EMC_WALL_3,
13542
13543     -1
13544   };
13545
13546   return getFlippedTileExt(map, element);
13547 }
13548
13549 static int getFlippedTileXY(int element)
13550 {
13551   int map[] =
13552   {
13553     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_UP,
13554     EL_BD_BUTTERFLY_RIGHT,              EL_BD_BUTTERFLY_DOWN,
13555     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_UP,
13556     EL_BD_FIREFLY_RIGHT,                EL_BD_FIREFLY_DOWN,
13557     EL_BUG_LEFT,                        EL_BUG_UP,
13558     EL_BUG_RIGHT,                       EL_BUG_DOWN,
13559     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_UP,
13560     EL_SPACESHIP_RIGHT,                 EL_SPACESHIP_DOWN,
13561     EL_PACMAN_LEFT,                     EL_PACMAN_UP,
13562     EL_PACMAN_RIGHT,                    EL_PACMAN_DOWN,
13563     EL_ARROW_LEFT,                      EL_ARROW_UP,
13564     EL_ARROW_RIGHT,                     EL_ARROW_DOWN,
13565     EL_MOLE_LEFT,                       EL_MOLE_UP,
13566     EL_MOLE_RIGHT,                      EL_MOLE_DOWN,
13567     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_UP,
13568     EL_BALLOON_SWITCH_RIGHT,            EL_BALLOON_SWITCH_DOWN,
13569     EL_YAMYAM_LEFT,                     EL_YAMYAM_UP,
13570     EL_YAMYAM_RIGHT,                    EL_YAMYAM_DOWN,
13571     EL_SP_PORT_LEFT,                    EL_SP_PORT_UP,
13572     EL_SP_PORT_RIGHT,                   EL_SP_PORT_DOWN,
13573     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_UP,
13574     EL_SP_GRAVITY_PORT_RIGHT,           EL_SP_GRAVITY_PORT_DOWN,
13575     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_UP,
13576     EL_SP_GRAVITY_ON_PORT_RIGHT,        EL_SP_GRAVITY_ON_PORT_DOWN,
13577     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_UP,
13578     EL_SP_GRAVITY_OFF_PORT_RIGHT,       EL_SP_GRAVITY_OFF_PORT_DOWN,
13579     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_TOP,
13580     EL_SP_CHIP_RIGHT,                   EL_SP_CHIP_BOTTOM,
13581     EL_TUBE_VERTICAL,                   EL_TUBE_HORIZONTAL,
13582     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_HORIZONTAL_UP,
13583     EL_TUBE_VERTICAL_RIGHT,             EL_TUBE_HORIZONTAL_DOWN,
13584     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_UP,
13585     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_TOP,
13586     EL_DC_STEELWALL_1_RIGHT,            EL_DC_STEELWALL_1_BOTTOM,
13587     EL_DC_STEELWALL_1_HORIZONTAL,       EL_DC_STEELWALL_1_VERTICAL,
13588     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMLEFT,
13589     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13590     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_TOP,
13591     EL_DC_STEELWALL_2_RIGHT,            EL_DC_STEELWALL_2_BOTTOM,
13592     EL_DC_STEELWALL_2_HORIZONTAL,       EL_DC_STEELWALL_2_VERTICAL,
13593     EL_EXPANDABLE_WALL_HORIZONTAL,      EL_EXPANDABLE_WALL_VERTICAL,
13594     EL_EXPANDABLE_STEELWALL_HORIZONTAL, EL_EXPANDABLE_STEELWALL_VERTICAL,
13595
13596     -1
13597   };
13598
13599   return getFlippedTileExt(map, element);
13600 }
13601
13602 static int getFlippedTile(int element, int mode)
13603 {
13604   if (IS_MM_ELEMENT(element))
13605   {
13606     // get MM game element
13607     element = map_element_RND_to_MM(element);
13608
13609     // get flipped game element
13610     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX_MM(element) :
13611                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY_MM(element) :
13612                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY_MM(element) :
13613                element);
13614
13615     // get RND game element again
13616     element = map_element_MM_to_RND(element);
13617   }
13618   else
13619   {
13620     // get flipped game element
13621     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX(element) :
13622                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY(element) :
13623                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY(element) :
13624                element);
13625   }
13626
13627   return element;
13628 }
13629
13630 static void SwapFlippedTiles(short *tile1, short *tile2, int mode)
13631 {
13632   // flip tiles
13633   short tile1_flipped = getFlippedTile(*tile1, mode);
13634   short tile2_flipped = getFlippedTile(*tile2, mode);
13635
13636   // swap tiles
13637   *tile1 = tile2_flipped;
13638   *tile2 = tile1_flipped;
13639 }
13640
13641 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
13642 {
13643   DrawLineElement(sx, sy, element, change_level);
13644 }
13645
13646 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
13647                          int button, int mode)
13648 {
13649   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
13650   static int brush_width, brush_height;
13651   static int last_cursor_x = -1, last_cursor_y = -1;
13652   static boolean delete_old_brush = FALSE;
13653   int new_element = BUTTON_ELEMENT(button);
13654   int x, y;
13655
13656   if (mode == CB_DUMP_BRUSH ||
13657       mode == CB_DUMP_BRUSH_SMALL ||
13658       mode == CB_BRUSH_TO_CLIPBOARD ||
13659       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13660   {
13661     if (edit_mode != ED_MODE_DRAWING)
13662       return;
13663
13664     char part[MAX_CB_PART_SIZE + 1] = "";
13665     char text[MAX_CB_TEXT_SIZE + 1] = "";
13666     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
13667     int height = (draw_with_brush ? brush_height : lev_fieldy);
13668     char *format = "%s%03d";
13669
13670     for (y = 0; y < height; y++)
13671       for (x = 0; x < width; x++)
13672         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
13673           format = "%s%04d";
13674
13675     for (y = 0; y < height; y++)
13676     {
13677       for (x = 0; x < width; x++)
13678       {
13679         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
13680         char *prefix = (mode == CB_DUMP_BRUSH ||
13681                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
13682
13683         if (element >= NUM_FILE_ELEMENTS)
13684           element = EL_UNKNOWN;
13685
13686         // copy brush to level sketch text buffer for the R'n'D forum:
13687         // - large tiles: `xxx or `xxxx (0x60 ASCII)
13688         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
13689         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
13690         strcat(text, part);
13691       }
13692
13693       strcat(text, "\n");
13694     }
13695
13696     if (mode == CB_BRUSH_TO_CLIPBOARD ||
13697         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13698       SDL_SetClipboardText(text);
13699     else
13700       Print("%s", text);        // print brush data to console and log file
13701
13702     return;
13703   }
13704
13705   if (mode == CB_CLIPBOARD_TO_BRUSH)
13706   {
13707     if (edit_mode != ED_MODE_DRAWING)
13708       return;
13709
13710     if (!SDL_HasClipboardText())
13711     {
13712       Request("Clipboard is empty!", REQ_CONFIRM);
13713
13714       return;
13715     }
13716
13717     boolean copy_to_brush = (draw_with_brush ||
13718                              drawing_function == GADGET_ID_GRAB_BRUSH);
13719
13720     // this will delete the old brush, if already drawing with a brush
13721     if (copy_to_brush)
13722       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
13723
13724     // initialization is required for "odd" (incomplete) clipboard content
13725     for (x = 0; x < MAX_LEV_FIELDX; x++)
13726       for (y = 0; y < MAX_LEV_FIELDY; y++)
13727         brush_buffer[x][y] = EL_EMPTY;
13728
13729     brush_width  = 0;
13730     brush_height = 0;
13731     x = 0;
13732     y = 0;
13733
13734     char *clipboard_text = SDL_GetClipboardText();
13735     char *ptr = clipboard_text;
13736     boolean allow_new_row = FALSE;
13737     boolean stop = FALSE;
13738
13739     while (*ptr && !stop)
13740     {
13741       boolean prefix_found = FALSE;
13742       boolean start_new_row = FALSE;
13743
13744       // level sketch element number prefixes (may be multi-byte characters)
13745       char *prefix_list[] = { "`", "¸" };
13746       int i;
13747
13748       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
13749       {
13750         char *prefix = prefix_list[i];
13751
13752         // check if string is large enough for prefix
13753         if (strlen(ptr) < strlen(prefix))
13754         {
13755           stop = TRUE;
13756
13757           break;
13758         }
13759
13760         // check if string starts with prefix
13761         if (strPrefix(ptr, prefix))
13762         {
13763           ptr += strlen(prefix);
13764
13765           prefix_found = TRUE;
13766
13767           break;
13768         }
13769       }
13770
13771       // check if prefix found and followed by (at least) three digits
13772       if (prefix_found &&
13773           strlen(ptr) >= 3 &&
13774           ptr[0] >= '0' && ptr[0] <= '9' &&
13775           ptr[1] >= '0' && ptr[1] <= '9' &&
13776           ptr[2] >= '0' && ptr[2] <= '9')
13777       {
13778         int element = ((ptr[0] - '0') * 100 +
13779                        (ptr[1] - '0') * 10 +
13780                        (ptr[2] - '0'));
13781
13782         ptr += 3;
13783
13784         // level sketch element number might consist of four digits
13785         if (ptr[0] >= '0' && ptr[0] <= '9')
13786         {
13787           element = element * 10 + (ptr[0] - '0');
13788           ptr++;
13789         }
13790
13791         // remap some (historic, now obsolete) elements
13792         element = getMappedElement(element);
13793
13794         if (element >= NUM_FILE_ELEMENTS)
13795           element = EL_UNKNOWN;
13796
13797         brush_buffer[x][y] = element;
13798
13799         brush_width  = MAX(x + 1, brush_width);
13800         brush_height = MAX(y + 1, brush_height);
13801
13802         x++;
13803
13804         if (x >= MAX_LEV_FIELDX)
13805           start_new_row = TRUE;
13806
13807         allow_new_row = TRUE;
13808       }
13809       else
13810       {
13811         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
13812           start_new_row = TRUE;
13813
13814         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
13815       }
13816
13817       if (start_new_row)
13818       {
13819         x = 0;
13820         y++;
13821
13822         if (y >= MAX_LEV_FIELDY)
13823           stop = TRUE;
13824
13825         allow_new_row = FALSE;
13826       }
13827     }
13828
13829     SDL_free(clipboard_text);
13830
13831     if (brush_width == 0 || brush_height == 0)
13832     {
13833       Request("No level sketch found in clipboard!", REQ_CONFIRM);
13834
13835       return;
13836     }
13837
13838     if (copy_to_brush)
13839     {
13840       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
13841       int mx, my;
13842
13843       SDL_GetMouseState(&mx, &my);
13844
13845       // if inside drawing area, activate and draw brush at last mouse position
13846       if (mx >= gi->x && mx < gi->x + gi->width &&
13847           my >= gi->y && my < gi->y + gi->height)
13848         CopyBrushToCursor(last_cursor_x, last_cursor_y);
13849
13850       draw_with_brush = TRUE;
13851     }
13852     else
13853     {
13854       char request[100];
13855
13856       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
13857               brush_width, brush_height);
13858
13859       if (!Request(request, REQ_ASK))
13860         return;
13861
13862       for (x = 0; x < MAX_LEV_FIELDX; x++)
13863         for (y = 0; y < MAX_LEV_FIELDY; y++)
13864           Tile[x][y] = brush_buffer[x][y];
13865
13866       lev_fieldx = level.fieldx = brush_width;
13867       lev_fieldy = level.fieldy = brush_height;
13868
13869       boolean use_bd_engine = TRUE;
13870       boolean use_em_engine = TRUE;
13871       boolean use_sp_engine = TRUE;
13872       boolean use_mm_engine = TRUE;
13873
13874       for (x = 0; x < MAX_LEV_FIELDX; x++)
13875       {
13876         for (y = 0; y < MAX_LEV_FIELDY; y++)
13877         {
13878           int element = Tile[x][y];
13879
13880           if (!IS_BD_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13881             use_bd_engine = FALSE;
13882
13883           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13884             use_em_engine = FALSE;
13885
13886           if (!IS_SP_ELEMENT(element))
13887             use_sp_engine = FALSE;
13888
13889           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
13890             use_mm_engine = FALSE;
13891         }
13892       }
13893
13894       level.game_engine_type = (use_bd_engine ? GAME_ENGINE_TYPE_BD :
13895                                 use_em_engine ? GAME_ENGINE_TYPE_EM :
13896                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
13897                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
13898                                 GAME_ENGINE_TYPE_RND);
13899
13900       // update element selection list
13901       ReinitializeElementList();
13902       ModifyEditorElementList();
13903
13904       SetBorderElement();
13905
13906       DrawEditModeWindow();
13907       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13908     }
13909
13910     return;
13911   }
13912
13913   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
13914     return;
13915
13916   if (mode == CB_AREA_TO_BRUSH)
13917   {
13918     int from_lx, from_ly;
13919
13920     if (from_x > to_x)
13921       swap_numbers(&from_x, &to_x);
13922
13923     if (from_y > to_y)
13924       swap_numbers(&from_y, &to_y);
13925
13926     brush_width = to_x - from_x + 1;
13927     brush_height = to_y - from_y + 1;
13928
13929     from_lx = from_x + level_xpos;
13930     from_ly = from_y + level_ypos;
13931
13932     for (y = 0; y < brush_height; y++)
13933     {
13934       for (x = 0; x < brush_width; x++)
13935       {
13936         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
13937
13938         if (button != 1)
13939           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
13940       }
13941     }
13942
13943     if (button != 1)
13944       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13945
13946     delete_old_brush = FALSE;
13947   }
13948   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
13949            mode == CB_BRUSH_TO_LEVEL)
13950   {
13951     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
13952     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
13953     int cursor_from_x = cursor_x - brush_width / 2;
13954     int cursor_from_y = cursor_y - brush_height / 2;
13955     int border_from_x = cursor_x, border_from_y = cursor_y;
13956     int border_to_x = cursor_x, border_to_y = cursor_y;
13957
13958     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
13959       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13960
13961     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
13962         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
13963     {
13964       delete_old_brush = FALSE;
13965
13966       return;
13967     }
13968
13969     for (y = 0; y < brush_height; y++)
13970     {
13971       for (x = 0; x < brush_width; x++)
13972       {
13973         int sx = cursor_from_x + x;
13974         int sy = cursor_from_y + y;
13975         int lx = sx + level_xpos;
13976         int ly = sy + level_ypos;
13977         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
13978         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
13979                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
13980                        brush_buffer[x][y] : new_element);
13981
13982         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13983         {
13984           if (sx < border_from_x)
13985             border_from_x = sx;
13986           else if (sx > border_to_x)
13987             border_to_x = sx;
13988           if (sy < border_from_y)
13989             border_from_y = sy;
13990           else if (sy > border_to_y)
13991             border_to_y = sy;
13992
13993           DrawBrushElement(sx, sy, element, change_level);
13994         }
13995       }
13996     }
13997
13998     if (mode != CB_DELETE_OLD_CURSOR)
13999       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
14000
14001     last_cursor_x = cursor_x;
14002     last_cursor_y = cursor_y;
14003
14004     delete_old_brush = TRUE;
14005   }
14006   else if (mode == CB_FLIP_BRUSH_X)
14007   {
14008     for (y = 0; y < brush_height; y++)
14009       for (x = 0; x < (brush_width + 1) / 2; x++)
14010         SwapFlippedTiles(&brush_buffer[x][y],
14011                          &brush_buffer[brush_width - x - 1][y], mode);
14012
14013     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14014   }
14015   else if (mode == CB_FLIP_BRUSH_Y)
14016   {
14017     for (y = 0; y < (brush_height + 1) / 2; y++)
14018       for (x = 0; x < brush_width; x++)
14019         SwapFlippedTiles(&brush_buffer[x][y],
14020                          &brush_buffer[x][brush_height - y - 1], mode);
14021
14022     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14023   }
14024   else if (mode == CB_FLIP_BRUSH_XY)
14025   {
14026     CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14027
14028     for (y = 0; y < MAX(brush_width, brush_height); y++)
14029       for (x = 0; x <= y; x++)
14030         SwapFlippedTiles(&brush_buffer[x][y],
14031                          &brush_buffer[y][x], mode);
14032
14033     swap_numbers(&brush_width, &brush_height);
14034
14035     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14036   }
14037
14038   if (mode == CB_UPDATE_BRUSH_POSITION)
14039   {
14040     last_cursor_x = from_x;
14041     last_cursor_y = from_y;
14042   }
14043 }
14044
14045 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
14046                             int button)
14047 {
14048   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
14049 }
14050
14051 static void CopyBrushToLevel(int x, int y, int button)
14052 {
14053   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
14054 }
14055
14056 static void CopyBrushToCursor(int x, int y)
14057 {
14058   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14059 }
14060
14061 static void UpdateBrushPosition(int x, int y)
14062 {
14063   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
14064 }
14065
14066 static void DeleteBrushFromCursor(void)
14067 {
14068   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14069 }
14070
14071 static void FlipBrushX(void)
14072 {
14073   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14074 }
14075
14076 static void FlipBrushY(void)
14077 {
14078   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_Y);
14079 }
14080
14081 static void RotateBrush(void)
14082 {
14083   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_XY);
14084   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14085 }
14086
14087 void DumpBrush(void)
14088 {
14089   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
14090 }
14091
14092 void DumpBrush_Small(void)
14093 {
14094   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
14095 }
14096
14097 void CopyClipboardToBrush(void)
14098 {
14099   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
14100 }
14101
14102 void CopyBrushToClipboard(void)
14103 {
14104   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
14105 }
14106
14107 void CopyBrushToClipboard_Small(void)
14108 {
14109   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
14110 }
14111
14112 void UndoLevelEditorOperation(void)
14113 {
14114   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
14115 }
14116
14117 void RedoLevelEditorOperation(void)
14118 {
14119   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14120 }
14121
14122 static void FloodFill(int from_x, int from_y, int fill_element)
14123 {
14124   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
14125 }
14126
14127 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
14128 {
14129   int from_x = from_sx2 + 2 * level_xpos;
14130   int from_y = from_sy2 + 2 * level_ypos;
14131   int max_fillx = lev_fieldx * 2;
14132   int max_filly = lev_fieldy * 2;
14133   short Fill[max_fillx][max_filly];
14134   int x, y;
14135
14136   for (x = 0; x < max_fillx; x++)
14137     for (y = 0; y < max_filly; y++)
14138       Fill[x][y] = getLevelElementHiRes(x, y);
14139
14140   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
14141                     Fill, max_fillx, max_filly);
14142
14143   for (x = 0; x < max_fillx; x++)
14144     for (y = 0; y < max_filly; y++)
14145       if (Fill[x][y] == fill_element)
14146         SetLevelElementHiRes(x, y, Fill[x][y]);
14147 }
14148
14149 // values for DrawLevelText() modes
14150 #define TEXT_INIT               0
14151 #define TEXT_SETCURSOR          1
14152 #define TEXT_WRITECHAR          2
14153 #define TEXT_BACKSPACE          3
14154 #define TEXT_NEWLINE            4
14155 #define TEXT_END                5
14156 #define TEXT_QUERY_TYPING       6
14157
14158 static int DrawLevelText(int sx, int sy, char letter, int mode)
14159 {
14160   static short delete_buffer[MAX_LEV_FIELDX];
14161   static int start_sx;
14162   static int last_sx, last_sy;
14163   static boolean typing = FALSE;
14164   int letter_element;
14165   int lx = 0, ly = 0;
14166
14167   // map lower case letters to upper case and convert special characters
14168   if (letter >= 'a' && letter <= 'z')
14169     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
14170   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
14171     letter_element = EL_CHAR_AUMLAUT;
14172   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
14173     letter_element = EL_CHAR_OUMLAUT;
14174   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
14175     letter_element = EL_CHAR_UUMLAUT;
14176   else if (letter == '^')
14177     letter_element = EL_CHAR_COPYRIGHT;
14178   else
14179     letter_element = EL_CHAR_ASCII0 + letter;
14180
14181   if (mode != TEXT_INIT)
14182   {
14183     if (!typing)
14184       return FALSE;
14185
14186     if (mode != TEXT_SETCURSOR)
14187     {
14188       sx = last_sx;
14189       sy = last_sy;
14190     }
14191
14192     lx = last_sx + level_xpos;
14193     ly = last_sy + level_ypos;
14194   }
14195
14196   switch (mode)
14197   {
14198     case TEXT_INIT:
14199       if (typing)
14200         DrawLevelText(0, 0, 0, TEXT_END);
14201
14202       typing = TRUE;
14203       start_sx = sx;
14204       last_sx = sx;
14205       last_sy = sy;
14206       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
14207       break;
14208
14209     case TEXT_SETCURSOR:
14210       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
14211       DrawAreaBorder(sx, sy, sx, sy);
14212       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
14213                      ed_tilesize, ed_tilesize);
14214       last_sx = sx;
14215       last_sy = sy;
14216       break;
14217
14218     case TEXT_WRITECHAR:
14219       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
14220       {
14221         if (new_element1 >= EL_STEEL_CHAR_START &&
14222             new_element1 <= EL_STEEL_CHAR_END)
14223           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
14224
14225         delete_buffer[sx - start_sx] = Tile[lx][ly];
14226         Tile[lx][ly] = letter_element;
14227
14228         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
14229           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
14230         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14231           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14232         else
14233           DrawLevelText(0, 0, 0, TEXT_END);
14234
14235         level.changed = TRUE;
14236       }
14237       break;
14238
14239     case TEXT_BACKSPACE:
14240       if (sx > start_sx)
14241       {
14242         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
14243         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
14244         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
14245       }
14246       break;
14247
14248     case TEXT_NEWLINE:
14249       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14250         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14251       else
14252         DrawLevelText(0, 0, 0, TEXT_END);
14253       break;
14254
14255     case TEXT_END:
14256       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14257       DrawEditorElement(sx, sy, Tile[lx][ly]);
14258       StopTextInput();
14259       typing = FALSE;
14260       break;
14261
14262     case TEXT_QUERY_TYPING:
14263       break;
14264
14265     default:
14266       break;
14267   }
14268
14269   return typing;
14270 }
14271
14272 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
14273                           int element, boolean change_level)
14274 {
14275   int lx = sx + level_xpos;
14276   int ly = sy + level_ypos;
14277
14278   if (element == -1)
14279     DrawEditorElement(sx, sy, Tile[lx][ly]);
14280   else
14281     DrawAreaBorder(sx, sy, sx, sy);
14282 }
14283
14284 static void CheckLevelBorderElement(boolean redraw_playfield)
14285 {
14286   int last_border_element = BorderElement;
14287
14288   SetBorderElement();
14289
14290   if (redraw_playfield && BorderElement != last_border_element)
14291     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14292 }
14293
14294 static void CopyLevelToUndoBuffer(int mode)
14295 {
14296   static boolean accumulated_undo = FALSE;
14297   boolean new_undo_buffer_position = TRUE;
14298   int x, y;
14299
14300   if (undo_buffer_steps == 0)
14301     accumulated_undo = FALSE;
14302
14303   switch (mode)
14304   {
14305     case UNDO_IMMEDIATE:
14306       accumulated_undo = FALSE;
14307       break;
14308
14309     case UNDO_ACCUMULATE:
14310       if (accumulated_undo)
14311         new_undo_buffer_position = FALSE;
14312       accumulated_undo = TRUE;
14313       break;
14314
14315     default:
14316       break;
14317   }
14318
14319   if (new_undo_buffer_position)
14320   {
14321     // advance position in undo buffer ring
14322     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14323
14324     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
14325       undo_buffer_steps++;
14326   }
14327
14328   // always reset redo buffer when storing level change into undo buffer
14329   redo_buffer_steps = 0;
14330
14331   for (x = 0; x < lev_fieldx; x++)
14332     for (y = 0; y < lev_fieldy; y++)
14333       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
14334
14335   // check if drawing operation forces change of border style
14336   CheckLevelBorderElement(TRUE);
14337
14338   level.changed = TRUE;
14339 }
14340
14341 static void RandomPlacement(int new_element)
14342 {
14343   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
14344   int num_free_positions = 0;
14345   int num_percentage, num_elements;
14346   int x, y;
14347
14348   ResetIntelliDraw();
14349
14350   // determine number of free positions for randomly placing the new element
14351   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
14352   {
14353     free_position[x][y] =
14354       (random_placement_background_restricted ?
14355        Tile[x][y] == random_placement_background_element :
14356        Tile[x][y] != new_element);
14357
14358     if (free_position[x][y])
14359       num_free_positions++;
14360   }
14361
14362   // determine number of new elements to place there
14363   num_percentage = num_free_positions * random_placement_value / 100;
14364   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
14365                   num_percentage : random_placement_value);
14366
14367   // if less free positions than elements to place, fill all these positions
14368   if (num_free_positions < num_elements)
14369   {
14370     for (x = 0; x < lev_fieldx; x++)
14371       for (y = 0; y < lev_fieldy; y++)
14372         if (free_position[x][y])
14373           SetElement(x, y, new_element);
14374   }
14375   else
14376   {
14377     while (num_elements > 0)
14378     {
14379       x = GetSimpleRandom(lev_fieldx);
14380       y = GetSimpleRandom(lev_fieldy);
14381
14382       // don't place element at the same position twice
14383       if (free_position[x][y])
14384       {
14385         free_position[x][y] = FALSE;
14386         SetElement(x, y, new_element);
14387         num_elements--;
14388       }
14389     }
14390   }
14391
14392   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14393   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14394 }
14395
14396 static void WrapLevel(int dx, int dy)
14397 {
14398   int wrap_dx = lev_fieldx - dx;
14399   int wrap_dy = lev_fieldy - dy;
14400   int x, y;
14401
14402   for (x = 0; x < lev_fieldx; x++)
14403     for (y = 0; y < lev_fieldy; y++)
14404       TileBackup[x][y] = Tile[x][y];
14405
14406   for (x = 0; x < lev_fieldx; x++)
14407     for (y = 0; y < lev_fieldy; y++)
14408       Tile[x][y] =
14409         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
14410
14411   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14412   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
14413 }
14414
14415 static void DrawAreaElementHighlight(boolean highlighted,
14416                                      boolean highlighted_similar)
14417 {
14418   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14419
14420   if (!highlighted)
14421     return;
14422
14423   int x, y;
14424
14425   for (x = 0; x < ed_fieldx; x++)
14426   {
14427     for (y = 0; y < ed_fieldy; y++)
14428     {
14429       boolean highlight = FALSE;
14430       int lx = x + level_xpos;
14431       int ly = y + level_ypos;
14432
14433       if (!IN_LEV_FIELD(lx, ly))
14434         continue;
14435
14436       // check if element is the same
14437       if (Tile[lx][ly] == new_element1)
14438         highlight = TRUE;
14439
14440       // check if element is similar
14441       if (highlighted_similar &&
14442           strEqual(element_info[Tile[lx][ly]].class_name,
14443                    element_info[new_element1].class_name))
14444         highlight = TRUE;
14445
14446       // check if element is matching MM style wall
14447       if (IS_MM_WALL(Tile[lx][ly]) &&
14448           map_mm_wall_element(Tile[lx][ly]) == new_element1)
14449         highlight = TRUE;
14450
14451       if (!highlight)
14452         continue;
14453
14454       if (IS_MM_WALL(Tile[lx][ly]) && !highlighted_similar)
14455       {
14456         int i;
14457
14458         for (i = 0; i < 4; i++)
14459         {
14460           if (!(MM_WALL_BITS(Tile[lx][ly]) & (1 << i)))
14461             continue;
14462
14463           int xx = x * 2 + (i % 2);
14464           int yy = y * 2 + (i / 2);
14465           int sx = SX + xx * ed_tilesize / 2;
14466           int sy = SY + yy * ed_tilesize / 2;
14467           int from_sx = sx;
14468           int from_sy = sy;
14469           int to_sx = sx + ed_tilesize / 2 - 1;
14470           int to_sy = sy + ed_tilesize / 2 - 1;
14471
14472           DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14473           DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14474           DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14475           DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14476         }
14477       }
14478       else
14479       {
14480         int sx = SX + x * ed_tilesize;
14481         int sy = SY + y * ed_tilesize;
14482         int from_sx = sx;
14483         int from_sy = sy;
14484         int to_sx = sx + ed_tilesize - 1;
14485         int to_sy = sy + ed_tilesize - 1;
14486
14487         DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14488         DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14489         DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14490         DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14491       }
14492     }
14493   }
14494 }
14495
14496 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
14497 {
14498   char *template_filename_old = getLocalLevelTemplateFilename();
14499   char *template_filename_new =
14500     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
14501
14502   if (copyFile(template_filename_old, template_filename_new) != 0)
14503     Request("Cannot copy level template!", REQ_CONFIRM);
14504
14505   free(template_filename_new);
14506 }
14507
14508 static void HandleDrawingAreas(struct GadgetInfo *gi)
14509 {
14510   static boolean started_inside_drawing_area = FALSE;
14511   static int last_sx = -1;
14512   static int last_sy = -1;
14513   static int last_sx2 = -1;
14514   static int last_sy2 = -1;
14515   int id = gi->custom_id;
14516   int type_id = gi->custom_type_id;
14517   boolean button_press_event;
14518   boolean button_release_event;
14519   boolean inside_drawing_area = !gi->event.off_borders;
14520   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
14521   int actual_drawing_function;
14522   int button = gi->event.button;
14523   int new_element = BUTTON_ELEMENT(button);
14524   int sx = gi->event.x, sy = gi->event.y;
14525   int min_sx = 0, min_sy = 0;
14526   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
14527   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
14528   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
14529   int sx2 = gi->event.mx / mini_item_xsize;
14530   int sy2 = gi->event.my / mini_item_ysize;
14531   int dx = sx2 % 2;
14532   int dy = sy2 % 2;
14533   int lx = 0, ly = 0;
14534   int x, y;
14535
14536   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
14537   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
14538
14539   // make sure to stay inside drawing area boundaries
14540   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
14541   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
14542
14543   if (draw_level)
14544   {
14545     int min_lx = 0, min_ly = 0;
14546     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
14547
14548     // get positions inside level field
14549     lx = sx + level_xpos;
14550     ly = sy + level_ypos;
14551
14552     if (!IN_LEV_FIELD(lx, ly))
14553       inside_drawing_area = FALSE;
14554
14555     // make sure to stay inside level field boundaries
14556     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
14557     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
14558
14559     // correct drawing area positions accordingly
14560     sx = lx - level_xpos;
14561     sy = ly - level_ypos;
14562   }
14563
14564   // also correct MM wall-sized (double) drawing area positions accordingly
14565   if (sx2 / 2 < sx || sx2 / 2 > sx)
14566   {
14567     dx = (sx2 / 2 < sx ? 0 : 1);
14568     sx2 = sx * 2 + dx;
14569   }
14570   if (sy2 / 2 < sy || sy2 / 2 > sy)
14571   {
14572     dy = (sy2 / 2 < sy ? 0 : 1);
14573     sy2 = sy * 2 + dy;
14574   }
14575
14576   if (!button_press_event && !button_release_event)
14577   {
14578     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
14579     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
14580                              isHiresTileElement(old_element) &&
14581                              isHiresDrawElement(new_element));
14582
14583     // prevent handling events for every pixel position when moving mouse
14584     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
14585         (sx2 == last_sx2 && sy2 == last_sy2))
14586       return;
14587   }
14588
14589   last_sx = sx;
14590   last_sy = sy;
14591   last_sx2 = sx2;
14592   last_sy2 = sy2;
14593
14594   if (button_press_event)
14595     started_inside_drawing_area = inside_drawing_area;
14596
14597   if (!started_inside_drawing_area)
14598     return;
14599
14600   if (!IS_VALID_BUTTON(button))
14601     return;
14602
14603   // handle info callback for each invocation of action callback
14604   gi->callback_info(gi);
14605
14606   // automatically switch to 'single item' drawing mode, if needed
14607   actual_drawing_function =
14608     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
14609      drawing_function : GADGET_ID_SINGLE_ITEMS);
14610
14611   // clicking into drawing area with pressed Control key picks element
14612   if (GetKeyModState() & KMOD_Control)
14613   {
14614     last_drawing_function = drawing_function;
14615     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
14616   }
14617
14618   if (GetKeyModState() & KMOD_Shift)
14619   {
14620     if (button_press_event || button_release_event)
14621       ResetIntelliDraw();
14622   }
14623
14624   SetDrawModeHiRes(-1);         // reset to normal draw mode
14625
14626   switch (actual_drawing_function)
14627   {
14628     case GADGET_ID_SINGLE_ITEMS:
14629       if (draw_level)
14630       {
14631         if (button_release_event)
14632         {
14633           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14634
14635           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
14636               !inside_drawing_area)
14637             DeleteBrushFromCursor();
14638
14639           break;
14640         }
14641
14642         if (draw_with_brush)
14643         {
14644           CopyBrushToLevel(sx, sy, button);
14645         }
14646         else
14647         {
14648           SetDrawModeHiRes(new_element);
14649
14650           if (IS_PLAYER_ELEMENT(new_element) || IS_MM_MCDUFFIN(new_element))
14651           {
14652             // remove player at old position
14653             for (y = 0; y < lev_fieldy; y++)
14654             {
14655               for (x = 0; x < lev_fieldx; x++)
14656               {
14657                 int old_element = Tile[x][y];
14658
14659                 if (IS_PLAYER_ELEMENT(old_element) &&
14660                     IS_PLAYER_ELEMENT(new_element))
14661                 {
14662                   int replaced_with_element =
14663                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
14664                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
14665
14666                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
14667                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
14668
14669                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
14670                      old_element == EL_PLAYER_1 ? EL_EMPTY :
14671
14672                      new_element >= EL_PLAYER_1 &&
14673                      new_element <= EL_PLAYER_4 &&
14674                      new_element == old_element ? EL_EMPTY :
14675
14676                      old_element);
14677
14678                   SetElement(x, y, replaced_with_element);
14679                 }
14680                 else if (IS_MM_MCDUFFIN(old_element) &&
14681                          IS_MM_MCDUFFIN(new_element))
14682                 {
14683                   // remove McDuffin at old position
14684                   SetElement(x, y, EL_EMPTY);
14685                 }
14686               }
14687             }
14688           }
14689
14690           SetElementButton(lx, ly, dx, dy, new_element, button);
14691         }
14692       }
14693       else if (!button_release_event)
14694       {
14695         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14696
14697         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
14698           DrawMiniGraphicExt(drawto,
14699                              gi->x + sx * MINI_TILEX,
14700                              gi->y + sy * MINI_TILEY,
14701                              el2edimg(new_element));
14702         else
14703           DrawFixedGraphicExt(drawto,
14704                               gi->x + sx * TILEX,
14705                               gi->y + sy * TILEY,
14706                               el2edimg(new_element), 0);
14707
14708         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14709           new_element = GFX_ELEMENT(new_element);
14710
14711         drawingarea_info[type_id].value[pos] = new_element;
14712
14713         CopyElementPropertiesToGame(properties_element);
14714
14715         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14716         {
14717           UpdateCustomElementGraphicGadgets();
14718
14719           FrameCounter = 0;     // restart animation frame counter
14720         }
14721       }
14722       break;
14723
14724     case GADGET_ID_CONNECTED_ITEMS:
14725       {
14726         static int last_sx = -1;
14727         static int last_sy = -1;
14728
14729         if (button_release_event)
14730           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14731
14732         SetDrawModeHiRes(new_element);
14733
14734         if (getDrawModeHiRes())
14735         {
14736           sx = sx2;
14737           sy = sy2;
14738         }
14739
14740         if (!button_press_event)
14741           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
14742
14743         last_sx = sx;
14744         last_sy = sy;
14745       }
14746       break;
14747
14748     case GADGET_ID_LINE:
14749     case GADGET_ID_ARC:
14750     case GADGET_ID_RECTANGLE:
14751     case GADGET_ID_FILLED_BOX:
14752       SetDrawModeHiRes(new_element);
14753
14754       if (getDrawModeHiRes())
14755       {
14756         sx = sx2;
14757         sy = sy2;
14758       }
14759       // FALLTHROUGH
14760     case GADGET_ID_GRAB_BRUSH:
14761     case GADGET_ID_TEXT:
14762       {
14763         static int last_sx = -1;
14764         static int last_sy = -1;
14765         static int start_sx = -1;
14766         static int start_sy = -1;
14767         void (*draw_func)(int, int, int, int, int, boolean);
14768
14769         if (drawing_function == GADGET_ID_LINE)
14770           draw_func = DrawLine;
14771         else if (drawing_function == GADGET_ID_ARC)
14772           draw_func = DrawArc;
14773         else if (drawing_function == GADGET_ID_RECTANGLE)
14774           draw_func = DrawBox;
14775         else if (drawing_function == GADGET_ID_FILLED_BOX)
14776           draw_func = DrawFilledBox;
14777         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
14778           draw_func = SelectArea;
14779         else // (drawing_function == GADGET_ID_TEXT)
14780           draw_func = SetTextCursor;
14781
14782         if (button_press_event)
14783         {
14784           draw_func(sx, sy, sx, sy, new_element, FALSE);
14785           start_sx = last_sx = sx;
14786           start_sy = last_sy = sy;
14787
14788           if (drawing_function == GADGET_ID_TEXT)
14789             DrawLevelText(0, 0, 0, TEXT_END);
14790         }
14791         else if (button_release_event)
14792         {
14793           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
14794           if (drawing_function == GADGET_ID_GRAB_BRUSH)
14795           {
14796             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
14797             CopyBrushToCursor(sx, sy);
14798             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
14799                           MB_LEFTBUTTON);
14800             draw_with_brush = TRUE;
14801           }
14802           else if (drawing_function == GADGET_ID_TEXT)
14803             DrawLevelText(sx, sy, 0, TEXT_INIT);
14804           else
14805             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14806         }
14807         else if (last_sx != sx || last_sy != sy)
14808         {
14809           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
14810           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
14811             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
14812           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
14813           last_sx = sx;
14814           last_sy = sy;
14815         }
14816       }
14817       break;
14818
14819     case GADGET_ID_FLOOD_FILL:
14820       if (button_press_event && Tile[lx][ly] != new_element)
14821       {
14822         if (IS_MM_WALL_EDITOR(new_element))
14823           FloodFillWall_MM(sx2, sy2, new_element);
14824         else
14825           FloodFill(lx, ly, new_element);
14826
14827         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14828         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14829       }
14830       break;
14831
14832     case GADGET_ID_PICK_ELEMENT:
14833       if (button_release_event)
14834         ClickOnGadget(level_editor_gadget[last_drawing_function],
14835                       MB_LEFTBUTTON);
14836       else if (draw_level)
14837         PickDrawingElement(button, Tile[lx][ly]);
14838       else
14839       {
14840         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14841
14842         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
14843       }
14844
14845     default:
14846       break;
14847   }
14848
14849   // do not mark level as modified for certain non-level-changing gadgets
14850   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
14851        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
14852       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
14853       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14854     return;
14855
14856   level.changed = TRUE;
14857 }
14858
14859 static void HandleCounterButtons(struct GadgetInfo *gi)
14860 {
14861   int gadget_id = gi->custom_id;
14862   int counter_id = gi->custom_type_id;
14863   int button = gi->event.button;
14864   int *counter_value = counterbutton_info[counter_id].value;
14865   int step = BUTTON_STEPSIZE(button) *
14866     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
14867
14868   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14869   {
14870     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
14871     boolean released = (gi->event.type == GD_EVENT_RELEASED);
14872     boolean level_changed = LevelChanged();
14873
14874     if ((level_changed && pressed) || (!level_changed && released))
14875       return;
14876
14877     if (level_changed && !Request("Level has changed! Discard changes?",
14878                                   REQ_ASK))
14879     {
14880       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14881         ModifyEditorCounterValue(counter_id, *counter_value);
14882
14883       return;
14884     }
14885   }
14886
14887   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14888     *counter_value = gi->textinput.number_value;
14889   else
14890     ModifyEditorCounterValue(counter_id, *counter_value + step);
14891
14892   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14893   {
14894     int last_game_engine_type = level.game_engine_type;
14895
14896     LoadLevel(level_nr);
14897     LoadScore(level_nr);
14898
14899     SaveLevelSetup_SeriesInfo();
14900
14901     TapeErase();
14902
14903     ResetUndoBuffer();
14904     DrawEditModeWindow();
14905
14906     if (level.game_engine_type != last_game_engine_type)
14907     {
14908       // update element selection list
14909       ReinitializeElementList();
14910       ModifyEditorElementList();
14911     }
14912
14913     return;
14914   }
14915
14916   switch (counter_id)
14917   {
14918     case ED_COUNTER_ID_YAMYAM_CONTENT:
14919       DrawYamYamContentAreas();
14920       break;
14921
14922     case ED_COUNTER_ID_BALL_CONTENT:
14923       DrawMagicBallContentAreas();
14924       break;
14925
14926     case ED_COUNTER_ID_ANDROID_CONTENT:
14927       DrawAndroidElementArea();
14928       break;
14929
14930     case ED_COUNTER_ID_GROUP_CONTENT:
14931       DrawGroupElementArea();
14932       CopyGroupElementPropertiesToGame(properties_element);
14933       break;
14934
14935     case ED_COUNTER_ID_INVENTORY_SIZE:
14936       DrawPlayerInitialInventoryArea(properties_element);
14937       break;
14938
14939     case ED_COUNTER_ID_MM_BALL_CONTENT:
14940       DrawMMBallContentArea();
14941       break;
14942
14943     case ED_COUNTER_ID_ENVELOPE_XSIZE:
14944     case ED_COUNTER_ID_ENVELOPE_YSIZE:
14945       DrawEnvelopeTextArea(-1);
14946       break;
14947
14948     case ED_COUNTER_ID_LEVEL_XSIZE:
14949     case ED_COUNTER_ID_LEVEL_YSIZE:
14950       lev_fieldx = level.fieldx;
14951       lev_fieldy = level.fieldy;
14952
14953       // check if resizing of level results in change of border border
14954       SetBorderElement();
14955
14956       break;
14957
14958     default:
14959       break;
14960   }
14961
14962   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
14963        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
14964       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
14965        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
14966     CopyElementPropertiesToGame(properties_element);
14967
14968   // do not mark level as modified for certain non-level-changing gadgets
14969   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
14970        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
14971       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
14972        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
14973     return;
14974
14975   level.changed = TRUE;
14976 }
14977
14978 static void HandleTextInputGadgets(struct GadgetInfo *gi)
14979 {
14980   int type_id = gi->custom_type_id;
14981
14982   strcpy(textinput_info[type_id].value, gi->textinput.value);
14983
14984   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
14985   {
14986     CopyElementPropertiesToGame(properties_element);
14987
14988     ModifyEditorElementList();  // update changed button info text
14989   }
14990
14991   // do not mark level as modified for certain non-level-changing gadgets
14992   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
14993       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
14994     return;
14995
14996   level.changed = TRUE;
14997 }
14998
14999 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
15000 {
15001   int type_id = gi->custom_type_id;
15002
15003   strncpy(textarea_info[type_id].value, gi->textarea.value,
15004           MAX_ENVELOPE_TEXT_LEN);
15005   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
15006
15007   level.changed = TRUE;
15008 }
15009
15010 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
15011 {
15012   int type_id = gi->custom_type_id;
15013   int value_old = *selectbox_info[type_id].value;
15014   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
15015
15016   *selectbox_info[type_id].value = value_new;
15017
15018   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
15019   {
15020     DrawLevelConfigWindow();
15021   }
15022   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
15023   {
15024     element_info[properties_element].current_change_page = gi->selectbox.index;
15025
15026     DrawPropertiesWindow();
15027   }
15028   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
15029             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
15030            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
15031             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
15032            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
15033   {
15034     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
15035     {
15036       // when changing action type, also check action mode and action arg
15037       if (value_old != value_new)
15038         setSelectboxSpecialActionVariablesIfNeeded();
15039
15040       DrawPropertiesChange();
15041     }
15042
15043     CopyElementPropertiesToGame(properties_element);
15044   }
15045   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
15046   {
15047     // show or hide "engine" tabulator depending on game engine type
15048     DrawLevelConfigWindow();
15049
15050     // update element selection list depending on game engine type
15051     ReinitializeElementList();
15052     ModifyEditorElementList();
15053   }
15054   else if (type_id == ED_SELECTBOX_ID_BD_SCHEDULING_TYPE)
15055   {
15056     // update BD cycle delay counter gadgets depending on BD scheduling type
15057     DrawLevelConfigWindow();
15058   }
15059
15060   // do not mark level as modified for certain non-level-changing gadgets
15061   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
15062       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
15063     return;
15064
15065   level.changed = TRUE;
15066 }
15067
15068 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
15069 {
15070   int type_id = gi->custom_type_id;
15071   int i;
15072
15073   if (type_id >= ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST &&
15074       type_id <= ED_TAB_BUTTON_ID_LEVELCONFIG_LAST)
15075   {
15076     edit_mode_levelconfig = gi->custom_type_id;
15077
15078     DrawLevelConfigWindow();
15079   }
15080   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
15081            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
15082   {
15083     edit_mode_properties = gi->custom_type_id;
15084
15085     DrawPropertiesWindow();
15086   }
15087   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
15088            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
15089   {
15090     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
15091
15092     // backup original "level.field" (needed to track playfield changes)
15093     CopyPlayfield(level.field, TileBackup);
15094
15095     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
15096     CopyPlayfield(Tile, level.field);
15097
15098     if (new_template ||
15099         Request("Save this template and kill the old?", REQ_ASK))
15100       SaveLevelTemplate();
15101
15102     if (new_template)
15103       Request("Template saved!", REQ_CONFIRM);
15104
15105     // restore original "level.field" (needed to track playfield changes)
15106     CopyPlayfield(TileBackup, level.field);
15107   }
15108   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
15109   {
15110     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
15111
15112     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
15113         leveldir_current->readonly)
15114     {
15115       Request("This level set is read-only!", REQ_CONFIRM);
15116
15117       return;
15118     }
15119
15120     if (strEqual(levelset_name, ""))
15121     {
15122       Request("Please enter level set title!", REQ_CONFIRM);
15123
15124       return;
15125     }
15126
15127     if (strEqual(levelset_author, ""))
15128     {
15129       Request("Please enter level set author!", REQ_CONFIRM);
15130
15131       return;
15132     }
15133
15134     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
15135     {
15136       if (UpdateUserLevelSet(levelset_subdir,
15137                              levelset_name,
15138                              levelset_author,
15139                              levelset_num_levels))
15140       {
15141         Request("Level set updated!", REQ_CONFIRM);
15142       }
15143       else
15144       {
15145         Request("Updating level set failed!", REQ_CONFIRM);
15146       }
15147     }
15148     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
15149     {
15150       if (level.changed && !Request("Level has changed! Discard changes?",
15151                                      REQ_ASK))
15152         return;
15153
15154       if (CreateUserLevelSet(levelset_subdir,
15155                              levelset_name,
15156                              levelset_author,
15157                              levelset_num_levels,
15158                              levelset_use_levelset_artwork))
15159       {
15160         if (levelset_copy_level_template)
15161           CopyLevelTemplateToUserLevelSet(levelset_subdir);
15162
15163         Request("New level set created!", REQ_CONFIRM);
15164
15165         AddUserLevelSetToLevelInfo(levelset_subdir);
15166         ChangeEditorToLevelSet(levelset_subdir);
15167       }
15168       else
15169       {
15170         Request("Creating new level set failed!", REQ_CONFIRM);
15171       }
15172     }
15173   }
15174   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
15175            custom_element.num_change_pages < MAX_CHANGE_PAGES)
15176   {
15177     struct ElementInfo *ei = &element_info[properties_element];
15178
15179     // when modifying custom element, ask for copying level template
15180     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15181       return;
15182
15183     setElementChangePages(ei, ei->num_change_pages + 1);
15184
15185     // set new change page to be new current change page
15186     ei->current_change_page = ei->num_change_pages - 1;
15187     ei->change = &ei->change_page[ei->current_change_page];
15188
15189     setElementChangeInfoToDefaults(ei->change);
15190
15191     DrawPropertiesWindow();
15192
15193     level.changed = TRUE;
15194   }
15195   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
15196            custom_element.num_change_pages > MIN_CHANGE_PAGES)
15197   {
15198     struct ElementInfo *ei = &element_info[properties_element];
15199
15200     // when modifying custom element, ask for copying level template
15201     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15202       return;
15203
15204     // copy all change pages after change page to be deleted
15205     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
15206       ei->change_page[i] = ei->change_page[i + 1];
15207
15208     setElementChangePages(ei, ei->num_change_pages - 1);
15209
15210     DrawPropertiesWindow();
15211
15212     level.changed = TRUE;
15213   }
15214 }
15215
15216 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
15217 {
15218   int type_id = gi->custom_type_id;
15219
15220   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
15221       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
15222   {
15223     struct ElementInfo *ei = &element_info[properties_element];
15224     int step = BUTTON_STEPSIZE(gi->event.button);
15225
15226     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
15227     ei->current_change_page += step;
15228
15229     if (ei->current_change_page < 0)
15230       ei->current_change_page = 0;
15231     else if (ei->current_change_page >= ei->num_change_pages)
15232       ei->current_change_page = ei->num_change_pages - 1;
15233
15234     DrawPropertiesWindow();
15235   }
15236   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
15237            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15238   {
15239     struct ElementInfo *ei = &element_info[properties_element];
15240     int current_change_page = ei->current_change_page;
15241
15242     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
15243     {
15244       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
15245         ei->change_page[current_change_page];
15246     }
15247     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15248     {
15249       // when modifying custom element, ask for copying level template
15250       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15251         return;
15252
15253       ei->change_page[current_change_page] =
15254         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
15255
15256       level.changed = TRUE;
15257     }
15258
15259     DrawPropertiesWindow();
15260   }
15261 }
15262
15263 static void HandleRadiobuttons(struct GadgetInfo *gi)
15264 {
15265   int type_id = gi->custom_type_id;
15266
15267   *radiobutton_info[type_id].value =
15268     radiobutton_info[type_id].checked_value;
15269
15270   // do not mark level as modified for certain non-level-changing gadgets
15271   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
15272       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
15273     return;
15274
15275   level.changed = TRUE;
15276 }
15277
15278 static void HandleCheckbuttons(struct GadgetInfo *gi)
15279 {
15280   int type_id = gi->custom_type_id;
15281
15282   *checkbutton_info[type_id].value ^= TRUE;
15283
15284   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
15285       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
15286       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
15287       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
15288          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
15289         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
15290          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
15291        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
15292   {
15293     CopyElementPropertiesToGame(properties_element);
15294   }
15295
15296   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
15297   {
15298     UpdateCustomElementGraphicGadgets();
15299   }
15300   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
15301            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
15302   {
15303     boolean template_related_changes_found = FALSE;
15304     int i;
15305
15306     // check if any custom, group or empty elements have been changed
15307     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
15308       if ((IS_CUSTOM_ELEMENT(i) ||
15309            IS_GROUP_ELEMENT(i) ||
15310            IS_EMPTY_ELEMENT(i)) &&
15311           element_info[i].modified_settings)
15312         template_related_changes_found = TRUE;
15313
15314     if (level.use_custom_template &&
15315         !fileExists(getGlobalLevelTemplateFilename()))
15316     {
15317       Request("No level template found!", REQ_CONFIRM);
15318
15319       level.use_custom_template = FALSE;
15320
15321       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15322
15323       return;
15324     }
15325
15326     if (level.use_custom_template &&
15327         template_related_changes_found &&
15328         !Request("Discard changes and use level template?", REQ_ASK))
15329     {
15330       level.use_custom_template = FALSE;
15331
15332       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15333
15334       return;
15335     }
15336
15337     if (!level.use_custom_template &&
15338         Request("Copy settings from level template?", REQ_ASK))
15339     {
15340       return;
15341     }
15342
15343     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
15344
15345     DrawEditModeWindow();
15346   }
15347   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
15348   {
15349     if (setup.editor.use_template_for_new_levels &&
15350         !fileExists(getGlobalLevelTemplateFilename()))
15351     {
15352       Request("No level template found!", REQ_CONFIRM);
15353
15354       return;
15355     }
15356
15357     if (setup.editor.use_template_for_new_levels &&
15358         level.changed &&
15359         !Request("Discard level and load template?", REQ_ASK))
15360     {
15361       return;
15362     }
15363
15364     if (!setup.editor.use_template_for_new_levels &&
15365         level.changed &&
15366         !Request("Discard level and use empty level?", REQ_ASK))
15367     {
15368       return;
15369     }
15370
15371     LoadLevel(level_nr);
15372     LoadScore(level_nr);
15373
15374     TapeErase();
15375
15376     ResetUndoBuffer();
15377     DrawEditModeWindow();
15378   }
15379   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
15380   {
15381     SetAutomaticNumberOfGemsNeeded();
15382   }
15383
15384   // do not mark level as modified for certain non-level-changing gadgets
15385   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
15386        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
15387       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
15388        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
15389        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
15390       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
15391     return;
15392
15393   level.changed = TRUE;
15394 }
15395
15396 static void HandleControlButtons(struct GadgetInfo *gi)
15397 {
15398   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
15399   static int last_edit_mode = ED_MODE_DRAWING;
15400   static int last_custom_copy_mode = -1;
15401   static int last_button = 0;
15402   int id = gi->custom_id;
15403   int button = gi->event.button;
15404   int step = BUTTON_STEPSIZE(button);
15405   int new_element = BUTTON_ELEMENT(button);
15406   int last_properties_element = properties_element;
15407   int x, y;
15408
15409   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
15410     DrawLevelText(0, 0, 0, TEXT_END);
15411
15412   if (id < ED_NUM_CTRL1_BUTTONS &&
15413       id != GADGET_ID_SINGLE_ITEMS &&
15414       id != GADGET_ID_PICK_ELEMENT &&
15415       edit_mode != ED_MODE_DRAWING &&
15416       drawing_function != GADGET_ID_PICK_ELEMENT &&
15417       !(GetKeyModState() & KMOD_Control))
15418     ChangeEditModeWindow(ED_MODE_DRAWING);
15419
15420   // element copy mode active, but no element button pressed => deactivate
15421   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
15422     last_custom_copy_mode = -1;
15423
15424   // when showing palette on element buttons, change element of button used
15425   if (editor.palette.show_on_element_buttons &&
15426       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
15427   {
15428     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
15429
15430     id = GADGET_ID_PALETTE;
15431   }
15432
15433   switch (id)
15434   {
15435     case GADGET_ID_SCROLL_LEFT:
15436       if (level_xpos >= 0)
15437       {
15438         if (lev_fieldx < ed_fieldx - 2)
15439           break;
15440
15441         level_xpos -= step;
15442         if (level_xpos < -1)
15443           level_xpos = -1;
15444         if (button == 1)
15445           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
15446         else
15447           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15448
15449         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15450                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15451       }
15452       break;
15453
15454     case GADGET_ID_SCROLL_RIGHT:
15455       if (level_xpos <= lev_fieldx - ed_fieldx)
15456       {
15457         if (lev_fieldx < ed_fieldx - 2)
15458           break;
15459
15460         level_xpos += step;
15461         if (level_xpos > lev_fieldx - ed_fieldx + 1)
15462           level_xpos = lev_fieldx - ed_fieldx + 1;
15463         if (button == 1)
15464           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
15465         else
15466           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15467
15468         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15469                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15470       }
15471       break;
15472
15473     case GADGET_ID_SCROLL_UP:
15474       if (level_ypos >= 0)
15475       {
15476         if (lev_fieldy < ed_fieldy - 2)
15477           break;
15478
15479         level_ypos -= step;
15480         if (level_ypos < -1)
15481           level_ypos = -1;
15482         if (button == 1)
15483           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
15484         else
15485           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15486
15487         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15488                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15489       }
15490       break;
15491
15492     case GADGET_ID_SCROLL_DOWN:
15493       if (level_ypos <= lev_fieldy - ed_fieldy)
15494       {
15495         if (lev_fieldy < ed_fieldy - 2)
15496           break;
15497
15498         level_ypos += step;
15499         if (level_ypos > lev_fieldy - ed_fieldy + 1)
15500           level_ypos = lev_fieldy - ed_fieldy + 1;
15501         if (button == 1)
15502           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
15503         else
15504           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15505
15506         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15507                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15508       }
15509       break;
15510
15511     case GADGET_ID_SCROLL_HORIZONTAL:
15512       level_xpos = gi->event.item_position - 1;
15513
15514       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15515       BackToFront();
15516
15517       break;
15518
15519     case GADGET_ID_SCROLL_VERTICAL:
15520       level_ypos = gi->event.item_position - 1;
15521
15522       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15523       BackToFront();
15524
15525       break;
15526
15527     case GADGET_ID_SCROLL_LIST_UP:
15528     case GADGET_ID_SCROLL_LIST_DOWN:
15529     case GADGET_ID_SCROLL_LIST_VERTICAL:
15530       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
15531         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
15532       else
15533       {
15534         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
15535         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15536
15537         if (element_shift < 0)
15538           element_shift = 0;
15539         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15540           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15541
15542         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15543                      GDI_SCROLLBAR_ITEM_POSITION,
15544                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15545       }
15546
15547       ModifyEditorElementList();
15548
15549       break;
15550
15551     case GADGET_ID_PROPERTIES:
15552       // always switch off element properties when they are already displayed
15553       last_properties_element = new_element;
15554     case GADGET_ID_ELEMENT_LEFT:
15555     case GADGET_ID_ELEMENT_MIDDLE:
15556     case GADGET_ID_ELEMENT_RIGHT:
15557       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
15558                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
15559                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
15560                             new_element);
15561
15562       if (edit_mode != ED_MODE_PROPERTIES)
15563       {
15564         last_edit_mode = edit_mode;
15565
15566         ChangeEditModeWindow(ED_MODE_PROPERTIES);
15567
15568         last_level_drawing_function = drawing_function;
15569         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
15570                       MB_LEFTBUTTON);
15571       }
15572       else if (properties_element != last_properties_element)
15573       {
15574         DrawEditModeWindow();
15575       }
15576       else
15577       {
15578         ChangeEditModeWindow(ED_MODE_DRAWING);
15579
15580         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
15581                       MB_LEFTBUTTON);
15582       }
15583       break;
15584
15585     case GADGET_ID_PALETTE:
15586       if (edit_mode != ED_MODE_PALETTE)
15587       {
15588         last_edit_mode = edit_mode;
15589
15590         ChangeEditModeWindow(ED_MODE_PALETTE);
15591       }
15592       else
15593       {
15594         ChangeEditModeWindow(last_edit_mode);
15595       }
15596       break;
15597
15598     case GADGET_ID_WRAP_LEFT:
15599       WrapLevel(-step, 0);
15600       break;
15601
15602     case GADGET_ID_WRAP_RIGHT:
15603       WrapLevel(step, 0);
15604       break;
15605
15606     case GADGET_ID_WRAP_UP:
15607       WrapLevel(0, -step);
15608       break;
15609
15610     case GADGET_ID_WRAP_DOWN:
15611       WrapLevel(0, step);
15612       break;
15613
15614     case GADGET_ID_SINGLE_ITEMS:
15615     case GADGET_ID_CONNECTED_ITEMS:
15616     case GADGET_ID_LINE:
15617     case GADGET_ID_ARC:
15618     case GADGET_ID_TEXT:
15619     case GADGET_ID_RECTANGLE:
15620     case GADGET_ID_FILLED_BOX:
15621     case GADGET_ID_FLOOD_FILL:
15622     case GADGET_ID_GRAB_BRUSH:
15623     case GADGET_ID_PICK_ELEMENT:
15624       if (drawing_function != GADGET_ID_PICK_ELEMENT)
15625         last_drawing_function = drawing_function;
15626       drawing_function = id;
15627       draw_with_brush = FALSE;
15628       break;
15629
15630     case GADGET_ID_RANDOM_PLACEMENT:
15631       RandomPlacement(new_element);
15632       break;
15633
15634     case GADGET_ID_ZOOM:
15635       // zoom level editor tile size in or out (or reset to default size)
15636       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
15637                      button == 2 ? ed_tilesize_default :
15638                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
15639
15640       // when using touch device, cycle through all zoom tilesizes
15641       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
15642         ed_tilesize = MICRO_TILESIZE;
15643
15644       // limit zoom level by upper and lower bound
15645       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
15646
15647       InitZoomLevelSettings(ed_tilesize);
15648
15649       if (edit_mode == ED_MODE_DRAWING)
15650       {
15651         DrawDrawingWindow();
15652
15653         // redraw zoom gadget info text
15654         PrintEditorGadgetInfoText(level_editor_gadget[id]);
15655       }
15656
15657       // save current editor zoom tilesize
15658       SaveSetup_AutoSetup();
15659
15660       break;
15661
15662     case GADGET_ID_CUSTOM_COPY_FROM:
15663     case GADGET_ID_CUSTOM_COPY_TO:
15664     case GADGET_ID_CUSTOM_EXCHANGE:
15665       last_custom_copy_mode = id;
15666       last_drawing_function = drawing_function;
15667       break;
15668
15669     case GADGET_ID_CUSTOM_COPY:
15670       CopyCustomElement(properties_element, -1, id);
15671       break;
15672
15673     case GADGET_ID_CUSTOM_PASTE:
15674       CopyCustomElement(-1, properties_element, id);
15675       break;
15676
15677     case GADGET_ID_UNDO:
15678       if (button < 0)   // keep button value (even if modifier keys are pressed)
15679         button = -button;
15680       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
15681         button = 3;
15682
15683       if (button == 1 && undo_buffer_steps == 0)
15684       {
15685         Request("Undo buffer empty!", REQ_CONFIRM);
15686
15687         break;
15688       }
15689       else if (button == 2)
15690       {
15691         break;
15692       }
15693       else if (button == 3 && redo_buffer_steps == 0)
15694       {
15695         Request("Redo buffer empty!", REQ_CONFIRM);
15696
15697         break;
15698       }
15699
15700       if (edit_mode != ED_MODE_DRAWING)
15701         ChangeEditModeWindow(ED_MODE_DRAWING);
15702
15703       if (button == 1)
15704       {
15705         // undo
15706
15707         undo_buffer_position =
15708           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
15709
15710         undo_buffer_steps--;
15711         redo_buffer_steps++;
15712       }
15713       else
15714       {
15715         // redo
15716
15717         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
15718
15719         undo_buffer_steps++;
15720         redo_buffer_steps--;
15721       }
15722
15723       for (x = 0; x < lev_fieldx; x++)
15724         for (y = 0; y < lev_fieldy; y++)
15725           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
15726
15727       // check if undo operation forces change of border style
15728       CheckLevelBorderElement(FALSE);
15729
15730       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15731
15732       break;
15733
15734     case GADGET_ID_CONF:
15735       if (edit_mode != ED_MODE_LEVELCONFIG)
15736       {
15737         last_edit_mode = edit_mode;
15738
15739         ChangeEditModeWindow(ED_MODE_LEVELCONFIG);
15740       }
15741       else
15742       {
15743         ChangeEditModeWindow(ED_MODE_DRAWING);
15744       }
15745       break;
15746
15747     case GADGET_ID_CLEAR:
15748       if (edit_mode != ED_MODE_DRAWING)
15749         ChangeEditModeWindow(ED_MODE_DRAWING);
15750
15751       for (x = 0; x < MAX_LEV_FIELDX; x++)
15752         for (y = 0; y < MAX_LEV_FIELDY; y++)
15753           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
15754
15755       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
15756
15757       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15758       break;
15759
15760     case GADGET_ID_SAVE:
15761     {
15762       // saving read-only levels into personal level set modifies global vars
15763       // "leveldir_current" and "level_nr"; restore them after saving level
15764       LevelDirTree *leveldir_former = leveldir_current;
15765       int level_nr_former = level_nr;
15766       char *level_filename;
15767       boolean new_level;
15768
15769       if (leveldir_current->readonly &&
15770           !PrepareSavingIntoPersonalLevelSet())
15771         break;
15772
15773       level_filename = getDefaultLevelFilename(level_nr);
15774       new_level = !fileExists(level_filename);
15775
15776       if (new_level ||
15777           Request("Save this level and kill the old?", REQ_ASK))
15778       {
15779         if (leveldir_former->readonly)
15780           ModifyLevelConfigForSavingIntoPersonalLevelSet(leveldir_former->name);
15781
15782         SetAutomaticNumberOfGemsNeeded();
15783
15784         CopyPlayfield(Tile, level.field);
15785         SaveLevel(level_nr);
15786
15787         level.changed = FALSE;
15788
15789         if (new_level)
15790         {
15791           char level_saved_msg[64];
15792
15793           if (leveldir_former->readonly)
15794             sprintf(level_saved_msg,
15795                     "Level saved as level %d into personal level set!",
15796                     level_nr);
15797           else
15798             strcpy(level_saved_msg, "Level saved!");
15799
15800           Request(level_saved_msg, REQ_CONFIRM);
15801         }
15802       }
15803
15804       // "cd" back to copied-from levelset (in case of saved read-only level)
15805       leveldir_current = leveldir_former;
15806       level_nr = level_nr_former;
15807
15808       break;
15809     }
15810
15811     case GADGET_ID_TEST:
15812       if (LevelChanged())
15813         level.game_version = GAME_VERSION_ACTUAL;
15814
15815       CopyPlayfield(level.field, TileBackup);
15816       CopyPlayfield(Tile, level.field);
15817
15818       CopyNativeLevel_RND_to_Native(&level);
15819
15820       UnmapLevelEditorGadgets();
15821       UndrawSpecialEditorDoor();
15822
15823       CloseDoor(DOOR_CLOSE_ALL);
15824
15825       // needed before playing if editor playfield area has different size
15826       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
15827
15828       // redraw_mask = REDRAW_ALL;
15829
15830       level_editor_test_game = TRUE;
15831
15832       StartGameActions(FALSE, setup.autorecord, level.random_seed);
15833
15834       break;
15835
15836     case GADGET_ID_EXIT:
15837       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
15838       break;
15839
15840     default:
15841       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
15842           id <= GADGET_ID_ELEMENTLIST_LAST)
15843       {
15844         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
15845
15846         new_element = editor_elements[element_position + element_shift];
15847
15848         if (IS_EDITOR_CASCADE(new_element))
15849         {
15850           int i;
15851
15852           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
15853           {
15854             int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
15855             boolean *cascade_value = editor_elements_info[i].setup_cascade_value;
15856
15857             if (*cascade_element == new_element)
15858             {
15859               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
15860               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
15861
15862               // update element selection list
15863               ReinitializeElementList();
15864               ModifyEditorElementList();
15865
15866               // update cascading gadget info text
15867               PrintEditorGadgetInfoText(level_editor_gadget[id]);
15868
15869               // save current editor cascading state
15870               SaveSetup_EditorCascade();
15871
15872               break;
15873             }
15874           }
15875
15876           break;
15877         }
15878
15879         if (last_custom_copy_mode != -1)
15880         {
15881           if (CopyCustomElement(properties_element, new_element,
15882                                 last_custom_copy_mode))
15883           {
15884             ClickOnGadget(level_editor_gadget[last_drawing_function],
15885                           MB_LEFTBUTTON);
15886
15887             last_custom_copy_mode = -1;
15888           }
15889
15890           break;
15891         }
15892
15893         // change element of button used to show palette
15894         if (editor.palette.show_on_element_buttons)
15895           button = last_button;
15896
15897         PickDrawingElement(button, new_element);
15898
15899         if (!stick_element_properties_window &&
15900             drawing_function != GADGET_ID_PICK_ELEMENT &&
15901             !(GetKeyModState() & KMOD_Control))
15902         {
15903           properties_element = new_element;
15904           if (edit_mode == ED_MODE_PROPERTIES)
15905             DrawPropertiesWindow();
15906         }
15907
15908         if (drawing_function == GADGET_ID_PICK_ELEMENT)
15909           ClickOnGadget(level_editor_gadget[last_drawing_function],
15910                         MB_LEFTBUTTON);
15911
15912         if (!use_permanent_palette)
15913           ChangeEditModeWindow(last_edit_mode);
15914       }
15915 #ifdef DEBUG
15916       else if (gi->event.type == GD_EVENT_PRESSED)
15917         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
15918       else if (gi->event.type == GD_EVENT_RELEASED)
15919         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
15920       else if (gi->event.type == GD_EVENT_MOVING)
15921         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
15922       else
15923         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
15924 #endif
15925       break;
15926   }
15927 }
15928
15929 void HandleLevelEditorKeyInput(Key key)
15930 {
15931   char letter = getCharFromKey(key);
15932
15933   if (drawing_function == GADGET_ID_TEXT &&
15934       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
15935   {
15936     if (letter)
15937       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
15938     else if (key == KSYM_Delete || key == KSYM_BackSpace)
15939       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
15940     else if (key == KSYM_Return)
15941       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
15942     else if (key == KSYM_Escape)
15943       DrawLevelText(0, 0, 0, TEXT_END);
15944
15945     return;
15946   }
15947
15948   int id = GADGET_ID_NONE;
15949   int new_element_shift = element_shift;
15950   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
15951   int button = MB_LEFTBUTTON;
15952   int i;
15953
15954   switch (key)
15955   {
15956     case KSYM_Left:
15957       id = GADGET_ID_SCROLL_LEFT;
15958       break;
15959     case KSYM_Right:
15960       id = GADGET_ID_SCROLL_RIGHT;
15961       break;
15962     case KSYM_Up:
15963       id = GADGET_ID_SCROLL_UP;
15964       break;
15965     case KSYM_Down:
15966       id = GADGET_ID_SCROLL_DOWN;
15967       break;
15968
15969     case KSYM_Page_Up:
15970     case KSYM_Page_Down:
15971       step *= (key == KSYM_Page_Up ? -1 : +1);
15972       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15973
15974       if (element_shift < 0)
15975         element_shift = 0;
15976       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15977         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15978
15979       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15980                    GDI_SCROLLBAR_ITEM_POSITION,
15981                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15982
15983       ModifyEditorElementList();
15984
15985       break;
15986
15987     case KSYM_Home:
15988     case KSYM_End:
15989       element_shift = (key == KSYM_Home ? 0 :
15990                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
15991
15992       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15993                    GDI_SCROLLBAR_ITEM_POSITION,
15994                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15995
15996       ModifyEditorElementList();
15997
15998       break;
15999
16000     case KSYM_Insert:
16001     case KSYM_Delete:
16002
16003       // this is needed to prevent interference with running "True X-Mouse"
16004       if (GetKeyModStateFromEvents() & KMOD_Control)
16005         break;
16006
16007       // check for last or next editor cascade block in element list
16008       for (i = 0; i < num_editor_elements; i++)
16009       {
16010         if ((key == KSYM_Insert && i == element_shift) ||
16011             (key == KSYM_Delete && new_element_shift > element_shift))
16012           break;
16013
16014         // jump to next cascade block (or to start of element list)
16015         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
16016           new_element_shift = i;
16017       }
16018
16019       if (i < num_editor_elements)
16020         element_shift = new_element_shift;
16021
16022       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
16023         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
16024
16025       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
16026                    GDI_SCROLLBAR_ITEM_POSITION,
16027                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
16028
16029       ModifyEditorElementList();
16030
16031       break;
16032
16033     case KSYM_Escape:
16034       if (edit_mode == ED_MODE_DRAWING)
16035         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
16036       else if (edit_mode == ED_MODE_LEVELCONFIG)
16037         HandleControlButtons(level_editor_gadget[GADGET_ID_CONF]);
16038       else if (edit_mode == ED_MODE_PROPERTIES)
16039         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
16040       else if (edit_mode == ED_MODE_PALETTE)
16041         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
16042       else              // should never happen
16043         ChangeEditModeWindow(ED_MODE_DRAWING);
16044
16045       break;
16046
16047     default:
16048       break;
16049   }
16050
16051   if (id != GADGET_ID_NONE)
16052     ClickOnGadget(level_editor_gadget[id], button);
16053   else if (letter == '1' || letter == '?')
16054     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
16055   else if (letter == '2')
16056     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
16057   else if (letter == '3')
16058     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
16059   else if (letter == '.')
16060     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
16061   else if (letter == 'U')
16062     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
16063   else if (letter == '-' || key == KSYM_KP_Subtract)
16064     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
16065   else if (letter == '0' || key == KSYM_KP_0)
16066     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
16067   else if (letter == '+' || key == KSYM_KP_Add ||
16068            letter == '=')       // ("Shift-=" is "+" on US keyboards)
16069     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
16070   else if (key == KSYM_Return ||
16071            key == KSYM_space ||
16072            key == setup.shortcut.toggle_pause)
16073     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
16074   else
16075     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
16076       if (letter && letter == controlbutton_info[i].shortcut)
16077         if (!anyTextGadgetActive())
16078           ClickOnGadget(level_editor_gadget[i], button);
16079
16080   if (draw_with_brush)
16081   {
16082     if (letter == 'x')
16083       FlipBrushX();
16084     else if (letter == 'y')
16085       FlipBrushY();
16086     else if (letter == 'z')
16087       RotateBrush();
16088   }
16089 }
16090
16091 static void HandleLevelEditorIdle_Properties(void)
16092 {
16093   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
16094   int x = editor.settings.element_graphic.x + element_border;
16095   int y = editor.settings.element_graphic.y + element_border;
16096   static DelayCounter action_delay = { 0 };
16097   int i;
16098
16099   action_delay.value = GameFrameDelay;
16100
16101   if (!DelayReached(&action_delay))
16102     return;
16103
16104   for (i = 0; i < ED_NUM_SELECTBOX; i++)
16105   {
16106     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
16107
16108     if (gi->mapped && gi->active && gi->selectbox.open)
16109       return;
16110   }
16111
16112   DrawEditorElementAnimation(SX + x, SY + y);
16113
16114   redraw_mask |= REDRAW_FIELD;
16115
16116   FrameCounter++;       // increase animation frame counter
16117 }
16118
16119 static void HandleLevelEditorIdle_Drawing(void)
16120 {
16121   static boolean last_highlighted = FALSE;
16122   static boolean last_highlighted_similar = FALSE;
16123   boolean highlighted = (GetKeyModState() & KMOD_Alt);
16124   boolean highlighted_similar = (GetKeyModState() & KMOD_Shift);
16125
16126   if (highlighted != last_highlighted ||
16127       (highlighted && highlighted_similar != last_highlighted_similar))
16128   {
16129     DrawAreaElementHighlight(highlighted, highlighted_similar);
16130
16131     redraw_mask |= REDRAW_FIELD;
16132   }
16133
16134   last_highlighted = highlighted;
16135   last_highlighted_similar = highlighted_similar;
16136 }
16137
16138 void HandleLevelEditorIdle(void)
16139 {
16140   if (edit_mode == ED_MODE_PROPERTIES)
16141     HandleLevelEditorIdle_Properties();
16142   else if (edit_mode == ED_MODE_DRAWING)
16143     HandleLevelEditorIdle_Drawing();
16144 }
16145
16146 static void ClearEditorGadgetInfoText(void)
16147 {
16148   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
16149 }
16150
16151 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
16152 {
16153   char infotext[MAX_OUTPUT_LINESIZE + 1];
16154   int max_infotext_len = getMaxInfoTextLength();
16155
16156   if (gi == NULL || strlen(gi->info_text) == 0)
16157     return;
16158
16159   strncpy(infotext, gi->info_text, max_infotext_len);
16160   infotext[max_infotext_len] = '\0';
16161
16162   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
16163   {
16164     int key = controlbutton_info[gi->custom_id].shortcut;
16165
16166     if (key)
16167     {
16168       char shortcut[MAX_OUTPUT_LINESIZE + 1];
16169
16170       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
16171         sprintf(shortcut, " ('.' or '%c')", key);
16172       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
16173         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
16174       else if (gi->custom_id == GADGET_ID_TEST)
16175         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
16176       else if (gi->custom_id == GADGET_ID_UNDO)
16177         sprintf(shortcut, " ('%c/Shift-U')", key);
16178       else if (gi->custom_id == GADGET_ID_ZOOM)
16179         sprintf(shortcut, " ('%c', '0', '-')", key);
16180       else
16181         sprintf(shortcut, " ('%s%c')",
16182                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
16183
16184       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
16185         strcat(infotext, shortcut);
16186     }
16187   }
16188
16189   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
16190 }
16191
16192 void HandleEditorGadgetInfoText(void *ptr)
16193 {
16194   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
16195
16196   if (game_status != GAME_MODE_EDITOR)
16197     return;
16198
16199   ClearEditorGadgetInfoText();
16200
16201   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
16202     return;
16203
16204   // misuse this function to delete brush cursor, if needed
16205   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
16206     DeleteBrushFromCursor();
16207
16208   PrintEditorGadgetInfoText(gi);
16209 }
16210
16211 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
16212 {
16213   int id = gi->custom_id;
16214   int type_id = gi->custom_type_id;
16215   int sx = gi->event.x;
16216   int sy = gi->event.y;
16217   int lx = sx + level_xpos;
16218   int ly = sy + level_ypos;
16219   int min_sx = 0, min_sy = 0;
16220   int max_sx = gi->drawing.area_xsize - 1;
16221   int max_sy = gi->drawing.area_ysize - 1;
16222   int actual_drawing_function = drawing_function;
16223   int max_infotext_len = getMaxInfoTextLength();
16224   char infotext[MAX_OUTPUT_LINESIZE + 1];
16225
16226   infotext[0] = '\0';           // start with empty info text
16227
16228   // pressed Control key: simulate picking element
16229   if (GetKeyModState() & KMOD_Control)
16230     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
16231
16232   ClearEditorGadgetInfoText();
16233
16234   if (gi->event.type == GD_EVENT_INFO_LEAVING)
16235     return;
16236
16237   // make sure to stay inside drawing area boundaries
16238   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
16239   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
16240
16241   if (id == GADGET_ID_DRAWING_LEVEL)
16242   {
16243     if (button_status)
16244     {
16245       int min_lx = 0, min_ly = 0;
16246       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
16247
16248       // get positions inside level field
16249       lx = sx + level_xpos;
16250       ly = sy + level_ypos;
16251
16252       // make sure to stay inside level field boundaries
16253       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
16254       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
16255
16256       // correct drawing area positions accordingly
16257       sx = lx - level_xpos;
16258       sy = ly - level_ypos;
16259     }
16260
16261     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16262     {
16263       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
16264       {
16265         static int start_lx = 0;
16266         static int start_ly = 0;
16267         char *text;
16268
16269         if (gi->event.type == GD_EVENT_PRESSED)
16270         {
16271           start_lx = lx;
16272           start_ly = ly;
16273         }
16274
16275         switch (actual_drawing_function)
16276         {
16277           case GADGET_ID_SINGLE_ITEMS:
16278             text = "Drawing single items";
16279             break;
16280           case GADGET_ID_CONNECTED_ITEMS:
16281             text = "Drawing connected items";
16282             break;
16283           case GADGET_ID_LINE:
16284             text = "Drawing line";
16285             break;
16286           case GADGET_ID_ARC:
16287             text = "Drawing arc";
16288             break;
16289           case GADGET_ID_TEXT:
16290             text = "Setting text cursor";
16291             break;
16292           case GADGET_ID_RECTANGLE:
16293             text = "Drawing rectangle";
16294             break;
16295           case GADGET_ID_FILLED_BOX:
16296             text = "Drawing filled box";
16297             break;
16298           case GADGET_ID_FLOOD_FILL:
16299             text = "Flood fill";
16300             break;
16301           case GADGET_ID_GRAB_BRUSH:
16302             text = "Grabbing brush";
16303             break;
16304           case GADGET_ID_PICK_ELEMENT:
16305             text = "Picking element";
16306             break;
16307
16308           default:
16309             text = "Drawing position";
16310             break;
16311         }
16312
16313         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16314           sprintf(infotext, "%s: %d, %d", text, lx, ly);
16315         else
16316           sprintf(infotext, "%s: %d, %d", text,
16317                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
16318       }
16319       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16320         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
16321       else
16322         sprintf(infotext, "Level position: %d, %d", lx, ly);
16323     }
16324
16325     // misuse this function to draw brush cursor, if needed
16326     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
16327     {
16328       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16329         CopyBrushToCursor(sx, sy);
16330       else
16331         DeleteBrushFromCursor();
16332     }
16333
16334     if (!draw_with_brush)
16335       UpdateBrushPosition(sx, sy);
16336   }
16337   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16338   {
16339     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
16340     int element = drawingarea_info[type_id].value[pos];
16341
16342     strncpy(infotext, getElementInfoText(element), max_infotext_len);
16343   }
16344   else
16345   {
16346     if (id == GADGET_ID_CUSTOM_CONTENT)
16347       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
16348     else if (id == GADGET_ID_GROUP_CONTENT)
16349       sprintf(infotext, "group element position: %d", sx + 1);
16350     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
16351              id <= GADGET_ID_YAMYAM_CONTENT_7)
16352       sprintf(infotext, "content area %d position: %d, %d",
16353               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
16354     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
16355              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
16356       sprintf(infotext, "content area %d position: %d, %d",
16357               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
16358     else if (id == GADGET_ID_ANDROID_CONTENT)
16359       sprintf(infotext, "android element position: %d", sx + 1);
16360     else if (drawingarea_info[type_id].infotext != NULL)
16361       strcpy(infotext, drawingarea_info[type_id].infotext);
16362   }
16363
16364   infotext[max_infotext_len] = '\0';
16365
16366   if (strlen(infotext) > 0)
16367     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
16368 }
16369
16370 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
16371                             boolean quick_quit)
16372 {
16373   if (!ask_if_level_has_changed ||
16374       !LevelChanged() ||
16375       Request("Level has changed! Exit without saving?",
16376               REQ_ASK | REQ_STAY_OPEN))
16377   {
16378     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
16379     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
16380
16381     // draw normal door
16382     UndrawSpecialEditorDoor();
16383
16384     // use door animation if door 1 viewport is unchanged and contains toolbox
16385     if (useEditorDoorAnimation())
16386       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
16387
16388     // close editor doors if viewport definition is the same as in main menu
16389     if (vp_door_1->x      == DX     &&
16390         vp_door_1->y      == DY     &&
16391         vp_door_1->width  == DXSIZE &&
16392         vp_door_1->height == DYSIZE &&
16393         vp_door_2->x      == VX     &&
16394         vp_door_2->y      == VY     &&
16395         vp_door_2->width  == VXSIZE &&
16396         vp_door_2->height == VYSIZE)
16397       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
16398     else
16399       SetDoorState(DOOR_CLOSE_ALL);
16400
16401     BackToFront();
16402
16403     if (quick_quit)
16404       FadeSkipNextFadeIn();
16405
16406     SetGameStatus(GAME_MODE_MAIN);
16407
16408     DrawMainMenu();
16409   }
16410   else
16411   {
16412     if (!global.use_envelope_request)
16413     {
16414       CloseDoor(DOOR_CLOSE_1);
16415       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
16416     }
16417   }
16418 }