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_BD_BLADDER_CONVERTS_BY_ELEMENT,
 570   GADGET_ID_START_ELEMENT,
 571   GADGET_ID_ARTWORK_ELEMENT,
 572   GADGET_ID_EXPLOSION_ELEMENT,
 573   GADGET_ID_INVENTORY_CONTENT,
 574   GADGET_ID_MM_BALL_CONTENT,
 575   GADGET_ID_CUSTOM_GRAPHIC,
 576   GADGET_ID_CUSTOM_CONTENT,
 577   GADGET_ID_CUSTOM_MOVE_ENTER,
 578   GADGET_ID_CUSTOM_MOVE_LEAVE,
 579   GADGET_ID_CUSTOM_CHANGE_TARGET,
 580   GADGET_ID_CUSTOM_CHANGE_CONTENT,
 581   GADGET_ID_CUSTOM_CHANGE_TRIGGER,
 582   GADGET_ID_CUSTOM_CHANGE_ACTION,
 583   GADGET_ID_GROUP_CONTENT,
 584   GADGET_ID_RANDOM_BACKGROUND,
 585
 586   // text input identifiers
 587
 588   GADGET_ID_LEVEL_NAME,
 589   GADGET_ID_LEVEL_AUTHOR,
 590   GADGET_ID_LEVELSET_NAME,
 591   GADGET_ID_LEVELSET_AUTHOR,
 592   GADGET_ID_ELEMENT_NAME,
 593
 594   // text area identifiers
 595
 596   GADGET_ID_ENVELOPE_INFO,
 597
 598   // selectbox identifiers
 599
 600   GADGET_ID_TIME_OR_STEPS,
 601   GADGET_ID_TIME_SCORE_BASE,
 602   GADGET_ID_GAME_ENGINE_TYPE,
 603   GADGET_ID_BD_SCHEDULING_TYPE,
 604   GADGET_ID_LEVELSET_SAVE_MODE,
 605   GADGET_ID_WIND_DIRECTION,
 606   GADGET_ID_PLAYER_SPEED,
 607   GADGET_ID_MM_BALL_CHOICE_MODE,
 608   GADGET_ID_CUSTOM_WALK_TO_ACTION,
 609   GADGET_ID_CUSTOM_EXPLOSION_TYPE,
 610   GADGET_ID_CUSTOM_DEADLINESS,
 611   GADGET_ID_CUSTOM_MOVE_PATTERN,
 612   GADGET_ID_CUSTOM_MOVE_DIRECTION,
 613   GADGET_ID_CUSTOM_MOVE_STEPSIZE,
 614   GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
 615   GADGET_ID_CUSTOM_SMASH_TARGETS,
 616   GADGET_ID_CUSTOM_SLIPPERY_TYPE,
 617   GADGET_ID_CUSTOM_ACCESS_TYPE,
 618   GADGET_ID_CUSTOM_ACCESS_LAYER,
 619   GADGET_ID_CUSTOM_ACCESS_PROTECTED,
 620   GADGET_ID_CUSTOM_ACCESS_DIRECTION,
 621   GADGET_ID_CHANGE_TIME_UNITS,
 622   GADGET_ID_CHANGE_DIRECT_ACTION,
 623   GADGET_ID_CHANGE_OTHER_ACTION,
 624   GADGET_ID_CHANGE_SIDE,
 625   GADGET_ID_CHANGE_PLAYER,
 626   GADGET_ID_CHANGE_PAGE,
 627   GADGET_ID_CHANGE_REPLACE_WHEN,
 628   GADGET_ID_ACTION_TYPE,
 629   GADGET_ID_ACTION_MODE,
 630   GADGET_ID_ACTION_ARG,
 631   GADGET_ID_SELECT_CHANGE_PAGE,
 632   GADGET_ID_GROUP_CHOICE_MODE,
 633
 634   // textbutton identifiers
 635
 636   GADGET_ID_LEVELCONFIG_LEVEL,
 637   GADGET_ID_LEVELCONFIG_LEVELSET,
 638   GADGET_ID_LEVELCONFIG_EDITOR,
 639   GADGET_ID_LEVELCONFIG_ENGINE,
 640   GADGET_ID_PROPERTIES_INFO,
 641   GADGET_ID_PROPERTIES_CONFIG,
 642   GADGET_ID_PROPERTIES_CONFIG_1,
 643   GADGET_ID_PROPERTIES_CONFIG_2,
 644   GADGET_ID_PROPERTIES_CHANGE,
 645   GADGET_ID_SAVE_AS_TEMPLATE_1,
 646   GADGET_ID_SAVE_AS_TEMPLATE_2,
 647   GADGET_ID_SAVE_LEVELSET,
 648   GADGET_ID_ADD_CHANGE_PAGE,
 649   GADGET_ID_DEL_CHANGE_PAGE,
 650
 651   // graphicbutton identifiers
 652
 653   GADGET_ID_PREV_CHANGE_PAGE,
 654   GADGET_ID_NEXT_CHANGE_PAGE,
 655   GADGET_ID_COPY_CHANGE_PAGE,
 656   GADGET_ID_PASTE_CHANGE_PAGE,
 657
 658   // gadgets for scrolling of drawing area
 659
 660   GADGET_ID_SCROLL_UP,
 661   GADGET_ID_SCROLL_DOWN,
 662   GADGET_ID_SCROLL_LEFT,
 663   GADGET_ID_SCROLL_RIGHT,
 664   GADGET_ID_SCROLL_HORIZONTAL,
 665   GADGET_ID_SCROLL_VERTICAL,
 666
 667   // gadgets for scrolling element list
 668
 669   GADGET_ID_SCROLL_LIST_UP,
 670   GADGET_ID_SCROLL_LIST_DOWN,
 671   GADGET_ID_SCROLL_LIST_VERTICAL,
 672
 673   // checkbuttons/radiobuttons for level/element properties
 674
 675   GADGET_ID_AUTO_COUNT_GEMS,
 676   GADGET_ID_RATE_TIME_OVER_SCORE,
 677   GADGET_ID_USE_LEVELSET_ARTWORK,
 678   GADGET_ID_COPY_LEVEL_TEMPLATE,
 679   GADGET_ID_RANDOM_PERCENTAGE,
 680   GADGET_ID_RANDOM_QUANTITY,
 681   GADGET_ID_RANDOM_RESTRICTED,
 682   GADGET_ID_BD_INTERMISSION,
 683   GADGET_ID_BD_PAL_TIMING,
 684   GADGET_ID_BD_LINE_SHIFTING_BORDERS,
 685   GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW,
 686   GADGET_ID_BD_SHORT_EXPLOSIONS,
 687   GADGET_ID_BD_GRAVITY_AFFECTS_ALL,
 688   GADGET_ID_STICK_ELEMENT,
 689   GADGET_ID_EM_SLIPPERY_GEMS,
 690   GADGET_ID_EM_EXPLODES_BY_FIRE,
 691   GADGET_ID_USE_SPRING_BUG,
 692   GADGET_ID_USE_TIME_ORB_BUG,
 693   GADGET_ID_USE_LIFE_BUGS,
 694   GADGET_ID_RANDOM_BALL_CONTENT,
 695   GADGET_ID_INITIAL_BALL_ACTIVE,
 696   GADGET_ID_GROW_INTO_DIGGABLE,
 697   GADGET_ID_SB_FIELDS_NEEDED,
 698   GADGET_ID_SB_OBJECTS_NEEDED,
 699   GADGET_ID_AUTO_EXIT_SOKOBAN,
 700   GADGET_ID_SOLVED_BY_ONE_PLAYER,
 701   GADGET_ID_FINISH_DIG_COLLECT,
 702   GADGET_ID_KEEP_WALKABLE_CE,
 703   GADGET_ID_CONTINUOUS_SNAPPING,
 704   GADGET_ID_BLOCK_SNAP_FIELD,
 705   GADGET_ID_BLOCK_LAST_FIELD,
 706   GADGET_ID_SP_BLOCK_LAST_FIELD,
 707   GADGET_ID_INSTANT_RELOCATION,
 708   GADGET_ID_SHIFTED_RELOCATION,
 709   GADGET_ID_LAZY_RELOCATION,
 710   GADGET_ID_USE_START_ELEMENT,
 711   GADGET_ID_USE_ARTWORK_ELEMENT,
 712   GADGET_ID_USE_EXPLOSION_ELEMENT,
 713   GADGET_ID_INITIAL_GRAVITY,
 714   GADGET_ID_USE_INITIAL_INVENTORY,
 715   GADGET_ID_CAN_PASS_TO_WALKABLE,
 716   GADGET_ID_CAN_FALL_INTO_ACID,
 717   GADGET_ID_CAN_MOVE_INTO_ACID,
 718   GADGET_ID_DONT_COLLIDE_WITH,
 719   GADGET_ID_BD_DIAGONAL_MOVEMENTS,
 720   GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE,
 721   GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
 722   GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING,
 723   GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
 724   GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
 725   GADGET_ID_BD_AMOEBA_START_IMMEDIATELY,
 726   GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
 727   GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS,
 728   GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER,
 729   GADGET_ID_BD_VOODOO_DIES_BY_ROCK,
 730   GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
 731   GADGET_ID_BD_SLIME_IS_PREDICTABLE,
 732   GADGET_ID_BD_CHANGE_EXPANDING_WALL,
 733   GADGET_ID_BD_REPLICATORS_ACTIVE,
 734   GADGET_ID_BD_CONVEYOR_BELTS_ACTIVE,
 735   GADGET_ID_BD_CONVEYOR_BELTS_CHANGED,
 736   GADGET_ID_BD_WATER_CANNOT_FLOW_DOWN,
 737   GADGET_ID_ENVELOPE_AUTOWRAP,
 738   GADGET_ID_ENVELOPE_CENTERED,
 739   GADGET_ID_MM_LASER_RED,
 740   GADGET_ID_MM_LASER_GREEN,
 741   GADGET_ID_MM_LASER_BLUE,
 742   GADGET_ID_DF_LASER_RED,
 743   GADGET_ID_DF_LASER_GREEN,
 744   GADGET_ID_DF_LASER_BLUE,
 745   GADGET_ID_ROTATE_MM_BALL_CONTENT,
 746   GADGET_ID_EXPLODE_MM_BALL,
 747   GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 748   GADGET_ID_CUSTOM_CAN_EXPLODE,
 749   GADGET_ID_CUSTOM_EXPLODE_FIRE,
 750   GADGET_ID_CUSTOM_EXPLODE_SMASH,
 751   GADGET_ID_CUSTOM_EXPLODE_IMPACT,
 752   GADGET_ID_CUSTOM_WALK_TO_OBJECT,
 753   GADGET_ID_CUSTOM_DEADLY,
 754   GADGET_ID_CUSTOM_CAN_MOVE,
 755   GADGET_ID_CUSTOM_CAN_FALL,
 756   GADGET_ID_CUSTOM_CAN_SMASH,
 757   GADGET_ID_CUSTOM_SLIPPERY,
 758   GADGET_ID_CUSTOM_ACCESSIBLE,
 759   GADGET_ID_CUSTOM_GRAV_REACHABLE,
 760   GADGET_ID_CUSTOM_USE_LAST_VALUE,
 761   GADGET_ID_CUSTOM_USE_GRAPHIC,
 762   GADGET_ID_CUSTOM_USE_TEMPLATE_1,
 763   GADGET_ID_CUSTOM_USE_TEMPLATE_2,
 764   GADGET_ID_CUSTOM_USE_TEMPLATE_3,
 765   GADGET_ID_CUSTOM_CAN_CHANGE,
 766   GADGET_ID_CHANGE_USE_CONTENT,
 767   GADGET_ID_CHANGE_USE_EXPLOSION,
 768   GADGET_ID_CHANGE_ONLY_COMPLETE,
 769   GADGET_ID_CHANGE_USE_RANDOM,
 770   GADGET_ID_CHANGE_HAS_ACTION,
 771   GADGET_ID_CHANGE_DELAY,
 772   GADGET_ID_CHANGE_BY_DIRECT_ACT,
 773   GADGET_ID_CHANGE_BY_OTHER_ACT,
 774
 775   NUM_STATIC_GADGET_IDS
 776 };
 777
 778 // gadgets for buttons in element list (dynamic)
 779 #define GADGET_ID_ELEMENTLIST_FIRST     (NUM_STATIC_GADGET_IDS)
 780 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 781                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 782
 783 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 784
 785 // radio button numbers
 786 enum
 787 {
 788   RADIO_NR_NONE,
 789   RADIO_NR_DRAWING_TOOLBOX,
 790   RADIO_NR_RANDOM_ELEMENTS
 791 };
 792
 793 // values for counter gadgets
 794 enum
 795 {
 796   ED_COUNTER_ID_SELECT_LEVEL,
 797   ED_COUNTER_ID_LEVEL_XSIZE,
 798   ED_COUNTER_ID_LEVEL_YSIZE,
 799   ED_COUNTER_ID_LEVEL_GEMSLIMIT,
 800   ED_COUNTER_ID_LEVEL_TIMELIMIT,
 801   ED_COUNTER_ID_LEVEL_TIMESCORE,
 802   ED_COUNTER_ID_LEVEL_RANDOM_SEED,
 803   ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
 804   ED_COUNTER_ID_LEVEL_RANDOM,
 805   ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
 806   ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
 807   ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
 808   ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
 809   ED_COUNTER_ID_BD_PUSHING_PROB,
 810   ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
 811   ED_COUNTER_ID_ELEMENT_VALUE1,
 812   ED_COUNTER_ID_ELEMENT_VALUE2,
 813   ED_COUNTER_ID_ELEMENT_VALUE3,
 814   ED_COUNTER_ID_ELEMENT_VALUE4,
 815   ED_COUNTER_ID_YAMYAM_CONTENT,
 816   ED_COUNTER_ID_BALL_CONTENT,
 817   ED_COUNTER_ID_ANDROID_CONTENT,
 818   ED_COUNTER_ID_ENVELOPE_XSIZE,
 819   ED_COUNTER_ID_ENVELOPE_YSIZE,
 820   ED_COUNTER_ID_INVENTORY_SIZE,
 821   ED_COUNTER_ID_MM_BALL_CONTENT,
 822   ED_COUNTER_ID_CUSTOM_SCORE,
 823   ED_COUNTER_ID_CUSTOM_GEMCOUNT,
 824   ED_COUNTER_ID_CUSTOM_VALUE_FIX,
 825   ED_COUNTER_ID_CUSTOM_VALUE_RND,
 826   ED_COUNTER_ID_PUSH_DELAY_FIX,
 827   ED_COUNTER_ID_PUSH_DELAY_RND,
 828   ED_COUNTER_ID_DROP_DELAY_FIX,
 829   ED_COUNTER_ID_DROP_DELAY_RND,
 830   ED_COUNTER_ID_MOVE_DELAY_FIX,
 831   ED_COUNTER_ID_MOVE_DELAY_RND,
 832   ED_COUNTER_ID_STEP_DELAY_FIX,
 833   ED_COUNTER_ID_STEP_DELAY_RND,
 834   ED_COUNTER_ID_EXPLOSION_DELAY,
 835   ED_COUNTER_ID_IGNITION_DELAY,
 836   ED_COUNTER_ID_GROUP_CONTENT,
 837   ED_COUNTER_ID_CHANGE_DELAY_FIX,
 838   ED_COUNTER_ID_CHANGE_DELAY_RND,
 839   ED_COUNTER_ID_CHANGE_CONT_RND,
 840
 841   ED_NUM_COUNTERBUTTONS
 842 };
 843
 844 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 845 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 846 #define ED_COUNTER_ID_LEVELSET_FIRST    ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 847 #define ED_COUNTER_ID_LEVELSET_LAST     ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 848 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 849 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 850
 851 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 852 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 853 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 854 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 855 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 856 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 857
 858 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 859 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 860
 861 // values for scrollbutton gadgets
 862 enum
 863 {
 864   ED_SCROLLBUTTON_ID_AREA_UP,
 865   ED_SCROLLBUTTON_ID_AREA_DOWN,
 866   ED_SCROLLBUTTON_ID_AREA_LEFT,
 867   ED_SCROLLBUTTON_ID_AREA_RIGHT,
 868   ED_SCROLLBUTTON_ID_LIST_UP,
 869   ED_SCROLLBUTTON_ID_LIST_DOWN,
 870
 871   ED_NUM_SCROLLBUTTONS
 872 };
 873
 874 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 875 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 876
 877 // values for scrollbar gadgets
 878 enum
 879 {
 880   ED_SCROLLBAR_ID_AREA_HORIZONTAL,
 881   ED_SCROLLBAR_ID_AREA_VERTICAL,
 882   ED_SCROLLBAR_ID_LIST_VERTICAL,
 883
 884   ED_NUM_SCROLLBARS
 885 };
 886
 887 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 888 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 889
 890 // values for text input gadgets
 891 enum
 892 {
 893   ED_TEXTINPUT_ID_LEVEL_NAME,
 894   ED_TEXTINPUT_ID_LEVEL_AUTHOR,
 895   ED_TEXTINPUT_ID_LEVELSET_NAME,
 896   ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
 897   ED_TEXTINPUT_ID_ELEMENT_NAME,
 898
 899   ED_NUM_TEXTINPUT
 900 };
 901
 902 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 903 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 904
 905 #define ED_TEXTINPUT_ID_LEVELSET_FIRST  ED_TEXTINPUT_ID_LEVELSET_NAME
 906 #define ED_TEXTINPUT_ID_LEVELSET_LAST   ED_TEXTINPUT_ID_LEVELSET_AUTHOR
 907
 908 // values for text area gadgets
 909 enum
 910 {
 911   ED_TEXTAREA_ID_ENVELOPE_INFO,
 912
 913   ED_NUM_TEXTAREAS
 914 };
 915
 916 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 917 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 918
 919 // values for selectbox gadgets
 920 enum
 921 {
 922   ED_SELECTBOX_ID_TIME_OR_STEPS,
 923   ED_SELECTBOX_ID_TIME_SCORE_BASE,
 924   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
 925   ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
 926   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
 927   ED_SELECTBOX_ID_WIND_DIRECTION,
 928   ED_SELECTBOX_ID_PLAYER_SPEED,
 929   ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
 930   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
 931   ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
 932   ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
 933   ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
 934   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
 935   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
 936   ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
 937   ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
 938   ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
 939   ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
 940   ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
 941   ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
 942   ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
 943   ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
 944   ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
 945   ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
 946   ED_SELECTBOX_ID_CHANGE_SIDE,
 947   ED_SELECTBOX_ID_CHANGE_PLAYER,
 948   ED_SELECTBOX_ID_CHANGE_PAGE,
 949   ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
 950   ED_SELECTBOX_ID_ACTION_TYPE,
 951   ED_SELECTBOX_ID_ACTION_MODE,
 952   ED_SELECTBOX_ID_ACTION_ARG,
 953   ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
 954   ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
 955
 956   ED_NUM_SELECTBOX
 957 };
 958
 959 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 960 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 961
 962 #define ED_SELECTBOX_ID_LEVELSET_FIRST  ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 963 #define ED_SELECTBOX_ID_LEVELSET_LAST   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 964
 965 #define ED_SELECTBOX_ID_ENGINE_FIRST    ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 966 #define ED_SELECTBOX_ID_ENGINE_LAST     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 967
 968 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 969 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 970 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 971 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 972 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 973 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 974
 975 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 976 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 977
 978 // values for textbutton gadgets
 979 enum
 980 {
 981   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
 982   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
 983   ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
 984   ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
 985   ED_TEXTBUTTON_ID_PROPERTIES_INFO,
 986   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
 987   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
 988   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
 989   ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
 990   ED_TEXTBUTTON_ID_SAVE_LEVELSET,
 991   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
 992   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
 993   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
 994   ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
 995
 996   ED_NUM_TEXTBUTTONS
 997 };
 998
 999 #define ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
1000 #define ED_TAB_BUTTON_ID_LEVELCONFIG_LAST  ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
1001
1002 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
1003 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1004
1005 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
1006 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
1007
1008 // values for graphicbutton gadgets
1009 enum
1010 {
1011   ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
1012   ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
1013   ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
1014   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
1015
1016   ED_NUM_GRAPHICBUTTONS
1017 };
1018
1019 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
1020 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
1021
1022 // values for checkbutton gadgets
1023 enum
1024 {
1025   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
1026   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
1027   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
1028   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
1029   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
1030   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
1031   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
1032   ED_CHECKBUTTON_ID_BD_INTERMISSION,
1033   ED_CHECKBUTTON_ID_BD_PAL_TIMING,
1034   ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
1035   ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
1036   ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
1037   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
1038   ED_CHECKBUTTON_ID_STICK_ELEMENT,
1039   ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
1040   ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
1041   ED_CHECKBUTTON_ID_USE_SPRING_BUG,
1042   ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
1043   ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
1044   ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
1045   ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
1046   ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
1047   ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
1048   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
1049   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
1050   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
1051   ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
1052   ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
1053   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
1054   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
1055   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
1056   ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
1057   ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
1058   ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
1059   ED_CHECKBUTTON_ID_LAZY_RELOCATION,
1060   ED_CHECKBUTTON_ID_USE_START_ELEMENT,
1061   ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
1062   ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
1063   ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
1064   ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
1065   ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
1066   ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
1067   ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
1068   ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
1069   ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
1070   ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
1071   ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
1072   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
1073   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
1074   ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
1075   ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
1076   ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
1077   ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
1078   ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
1079   ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
1080   ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
1081   ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE,
1082   ED_CHECKBUTTON_ID_BD_CHANGE_EXPANDING_WALL,
1083   ED_CHECKBUTTON_ID_BD_REPLICATORS_ACTIVE,
1084   ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_ACTIVE,
1085   ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_CHANGED,
1086   ED_CHECKBUTTON_ID_BD_WATER_CANNOT_FLOW_DOWN,
1087   ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
1088   ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
1089   ED_CHECKBUTTON_ID_MM_LASER_RED,
1090   ED_CHECKBUTTON_ID_MM_LASER_GREEN,
1091   ED_CHECKBUTTON_ID_MM_LASER_BLUE,
1092   ED_CHECKBUTTON_ID_DF_LASER_RED,
1093   ED_CHECKBUTTON_ID_DF_LASER_GREEN,
1094   ED_CHECKBUTTON_ID_DF_LASER_BLUE,
1095   ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
1096   ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
1097   ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
1098   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
1099   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
1100   ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
1101   ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
1102   ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
1103   ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
1104   ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
1105   ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
1106   ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
1107   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
1108   ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
1109   ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
1110   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
1111   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
1112   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
1113   ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
1114   ED_CHECKBUTTON_ID_CHANGE_DELAY,
1115   ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
1116   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
1117   ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
1118   ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
1119   ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
1120   ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
1121   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
1122
1123   ED_NUM_CHECKBUTTONS
1124 };
1125
1126 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
1127 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
1128
1129 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
1130 #define ED_CHECKBUTTON_ID_LEVELSET_LAST  ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
1131
1132 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
1133 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
1134
1135 #define ED_CHECKBUTTON_ID_ENGINE_FIRST  ED_CHECKBUTTON_ID_BD_INTERMISSION
1136 #define ED_CHECKBUTTON_ID_ENGINE_LAST   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL
1137
1138 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
1139 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
1140 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
1141 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
1142 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
1143 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
1144
1145 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
1146 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
1147
1148 // values for radiobutton gadgets
1149 enum
1150 {
1151   ED_RADIOBUTTON_ID_PERCENTAGE,
1152   ED_RADIOBUTTON_ID_QUANTITY,
1153
1154   ED_NUM_RADIOBUTTONS
1155 };
1156
1157 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
1158 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
1159
1160 // values for drawing area gadgets
1161 enum
1162 {
1163   ED_DRAWING_ID_DRAWING_LEVEL,
1164   ED_DRAWING_ID_YAMYAM_CONTENT_0,
1165   ED_DRAWING_ID_YAMYAM_CONTENT_1,
1166   ED_DRAWING_ID_YAMYAM_CONTENT_2,
1167   ED_DRAWING_ID_YAMYAM_CONTENT_3,
1168   ED_DRAWING_ID_YAMYAM_CONTENT_4,
1169   ED_DRAWING_ID_YAMYAM_CONTENT_5,
1170   ED_DRAWING_ID_YAMYAM_CONTENT_6,
1171   ED_DRAWING_ID_YAMYAM_CONTENT_7,
1172   ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
1173   ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
1174   ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
1175   ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
1176   ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
1177   ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
1178   ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
1179   ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
1180   ED_DRAWING_ID_ANDROID_CONTENT,
1181   ED_DRAWING_ID_AMOEBA_CONTENT,
1182   ED_DRAWING_ID_BD_SNAP_ELEMENT,
1183   ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
1184   ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
1185   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
1186   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
1187   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
1188   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
1189   ED_DRAWING_ID_BD_ACID_EATS_ELEMENT,
1190   ED_DRAWING_ID_BD_ACID_TURNS_TO_ELEMENT,
1191   ED_DRAWING_ID_BD_BITER_EATS_ELEMENT,
1192   ED_DRAWING_ID_BD_BLADDER_CONVERTS_BY_ELEMENT,
1193   ED_DRAWING_ID_START_ELEMENT,
1194   ED_DRAWING_ID_ARTWORK_ELEMENT,
1195   ED_DRAWING_ID_EXPLOSION_ELEMENT,
1196   ED_DRAWING_ID_INVENTORY_CONTENT,
1197   ED_DRAWING_ID_MM_BALL_CONTENT,
1198   ED_DRAWING_ID_CUSTOM_GRAPHIC,
1199   ED_DRAWING_ID_CUSTOM_CONTENT,
1200   ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
1201   ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
1202   ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
1203   ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
1204   ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
1205   ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
1206   ED_DRAWING_ID_GROUP_CONTENT,
1207   ED_DRAWING_ID_RANDOM_BACKGROUND,
1208
1209   ED_NUM_DRAWING_AREAS
1210 };
1211
1212 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
1213 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
1214
1215
1216 // ----------------------------------------------------------------------------
1217 // some internally used definitions
1218 // ----------------------------------------------------------------------------
1219
1220 // values for CopyLevelToUndoBuffer()
1221 #define UNDO_IMMEDIATE                  0
1222 #define UNDO_ACCUMULATE                 1
1223
1224 // values for scrollbars
1225 #define ED_SCROLL_NO                    0
1226 #define ED_SCROLL_LEFT                  1
1227 #define ED_SCROLL_RIGHT                 2
1228 #define ED_SCROLL_UP                    4
1229 #define ED_SCROLL_DOWN                  8
1230
1231 // screens in the level editor
1232 #define ED_MODE_DRAWING                 0
1233 #define ED_MODE_LEVELCONFIG             1
1234 #define ED_MODE_PROPERTIES              2
1235 #define ED_MODE_PALETTE                 3
1236
1237 // sub-screens in the global settings section
1238 #define ED_MODE_LEVELCONFIG_LEVEL       ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
1239 #define ED_MODE_LEVELCONFIG_LEVELSET    ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET
1240 #define ED_MODE_LEVELCONFIG_EDITOR      ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR
1241 #define ED_MODE_LEVELCONFIG_ENGINE      ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
1242
1243 // sub-screens in the element properties section
1244 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1245 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1246 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1247 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1248 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1249
1250 // how many steps can be cancelled
1251 #define NUM_UNDO_STEPS                  (64 + 1)
1252
1253 // values for elements with score for certain actions
1254 #define MIN_SCORE                       0
1255 #define MAX_SCORE                       999
1256
1257 // values for elements with count for collecting
1258 #define MIN_COLLECT_COUNT               0
1259 #define MAX_COLLECT_COUNT               999
1260
1261 // values for random placement
1262 #define RANDOM_USE_PERCENTAGE           0
1263 #define RANDOM_USE_QUANTITY             1
1264
1265 // values for level set save mode
1266 #define LEVELSET_SAVE_MODE_UPDATE       0
1267 #define LEVELSET_SAVE_MODE_CREATE       1
1268
1269 // default value for element tile size in drawing area
1270 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1271 #define DEFAULT_EDITOR_TILESIZE_MM      TILESIZE
1272
1273
1274 // ----------------------------------------------------------------------------
1275 // some internally used data structure definitions
1276 // ----------------------------------------------------------------------------
1277
1278 static struct
1279 {
1280   int graphic;
1281   int gadget_id;
1282   struct XYTileSize *pos;
1283   int gadget_type;
1284   char *infotext;
1285   char shortcut;
1286 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1287 {
1288   // note: some additional characters are already reserved for "cheat mode"
1289   // shortcuts (":XYZ" style) -- for details, see "events.c"
1290
1291   // ---------- toolbox control buttons ---------------------------------------
1292
1293   {
1294     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1295     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1296     "Draw single items",                        's'
1297   },
1298   {
1299     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1300     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1301     "Draw connected items",                     'd'
1302   },
1303   {
1304     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1305     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1306     "Draw lines",                               'l'
1307   },
1308   {
1309     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1310     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1311     "Draw arcs",                                'a'
1312   },
1313   {
1314     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1315     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1316     "Draw outline rectangles",                  'r'
1317   },
1318   {
1319     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1320     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1321     "Draw filled rectangles",                   'R'
1322   },
1323   {
1324     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1325     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1326     "Wrap (rotate) level up",                   0
1327   },
1328   {
1329     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1330     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1331     "Enter text elements",                      't'
1332   },
1333   {
1334     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1335     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1336     "Flood fill",                               'f'
1337   },
1338   {
1339     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1340     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1341     "Wrap (rotate) level left",                 0
1342   },
1343   {
1344     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1345     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1346     "Zoom level tile size",                     '+'
1347   },
1348   {
1349     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1350     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1351     "Wrap (rotate) level right",                0
1352   },
1353   {
1354     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1355     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1356     "Random element placement",                 0
1357   },
1358   {
1359     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1360     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1361     "Grab brush",                               'b'
1362   },
1363   {
1364     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1365     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1366     "Wrap (rotate) level down",                 0
1367   },
1368   {
1369     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1370     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1371     "Pick drawing element",                     ','
1372   },
1373
1374   // ---------- level control buttons -----------------------------------------
1375
1376   {
1377     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1378     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1379     "Undo/redo last operation",                 'u'
1380   },
1381   {
1382     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_CONF,
1383     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1384     "Level and editor settings",                'I'
1385   },
1386   {
1387     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1388     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1389     "Save level",                               'S'
1390   },
1391   {
1392     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1393     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1394     "Clear level",                              'C'
1395   },
1396   {
1397     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1398     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1399     "Test level",                               'T'
1400   },
1401   {
1402     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1403     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1404     "Exit level editor",                        'E'
1405   },
1406
1407   // ---------- CE and GE control buttons -------------------------------------
1408
1409   {
1410     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1411     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1412     "Copy settings from other element",         0
1413   },
1414   {
1415     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1416     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1417     "Copy settings to other element",           0
1418   },
1419   {
1420     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1421     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1422     "Exchange element with other element",      0
1423   },
1424   {
1425     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1426     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1427     "Copy settings from this element",          0
1428   },
1429   {
1430     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1431     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1432     "Paste settings to this element",           0
1433   },
1434
1435   // ---------- palette control buttons ---------------------------------------
1436
1437   {
1438     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1439     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1440     "Properties of drawing element",            'p'
1441   },
1442   {
1443     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1444     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1445     "Properties of drawing element 1",          '1'
1446   },
1447   {
1448     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1449     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1450     "Properties of drawing element 2",          '2'
1451   },
1452   {
1453     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1454     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1455     "Properties of drawing element 3",          '3'
1456   },
1457   {
1458     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1459     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1460     "Show list of elements",                    'e'
1461   }
1462 };
1463
1464 static int random_placement_value = 10;
1465 static int random_placement_method = RANDOM_USE_QUANTITY;
1466 static int random_placement_background_element = EL_SAND;
1467 static boolean random_placement_background_restricted = FALSE;
1468 static boolean stick_element_properties_window = FALSE;
1469 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1470 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1471 static struct ElementChangeInfo custom_element_change;
1472 static struct ElementGroupInfo group_element_info;
1473 static struct ElementInfo custom_element;
1474
1475 static char levelset_name[MAX_LEVEL_NAME_LEN + 1];
1476 static char levelset_author[MAX_LEVEL_AUTHOR_LEN + 1];
1477 static int levelset_num_levels = 100;
1478 static boolean levelset_use_levelset_artwork = FALSE;
1479 static boolean levelset_copy_level_template = FALSE;
1480 static int levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
1481
1482 static struct
1483 {
1484   int gadget_type_id;
1485   int x, y;
1486   int min_value, max_value;
1487   int gadget_id_down, gadget_id_up;
1488   int gadget_id_text;
1489   int gadget_id_align;
1490   int *value;
1491   char *text_above, *text_left, *text_right;
1492 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1493 {
1494   // ---------- current level number ------------------------------------------
1495
1496   {
1497     ED_COUNTER_ID_SELECT_LEVEL,
1498     -1, -1,     // these values are not constant, but can change at runtime
1499     1,                                  100,
1500     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1501     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1502     &level_nr,
1503     NULL,                               NULL, NULL
1504   },
1505
1506   // ---------- level and editor settings -------------------------------------
1507
1508   {
1509     ED_COUNTER_ID_LEVEL_XSIZE,
1510     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1511     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1512     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1513     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1514     &level.fieldx,
1515     "Playfield size:",                  NULL, "Width",
1516   },
1517   {
1518     ED_COUNTER_ID_LEVEL_YSIZE,
1519     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1520     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1521     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1522     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1523     &level.fieldy,
1524     NULL,                               " ", "Height",
1525   },
1526   {
1527     ED_COUNTER_ID_LEVEL_GEMSLIMIT,
1528     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1529     0,                                  999,
1530     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1531     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1532     &level.gems_needed,
1533     NULL,                               "Number of gems to collect:", NULL
1534   },
1535   {
1536     ED_COUNTER_ID_LEVEL_TIMELIMIT,
1537     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
1538     0,                                  9999,
1539     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1540     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1541     &level.time,
1542     "Time or step limit to solve level:", NULL, NULL
1543   },
1544   {
1545     ED_COUNTER_ID_LEVEL_TIMESCORE,
1546     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
1547     0,                                  999,
1548     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1549     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1550     &level.score[SC_TIME_BONUS],
1551     "Score for time or steps left:",    NULL, NULL
1552   },
1553   {
1554     ED_COUNTER_ID_LEVEL_RANDOM_SEED,
1555     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(13),
1556     0,                                  9999,
1557     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1558     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1559     &level.random_seed,
1560     NULL,                               "Random seed:", "(0 => random)"
1561   },
1562   {
1563     ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
1564     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1565     1,                                  MAX_LEVELS,
1566     GADGET_ID_LEVELSET_NUM_LEVELS_DOWN, GADGET_ID_LEVELSET_NUM_LEVELS_UP,
1567     GADGET_ID_LEVELSET_NUM_LEVELS_TEXT, GADGET_ID_NONE,
1568     &levelset_num_levels,
1569     "Number of levels:",                NULL, NULL,
1570   },
1571   {
1572     ED_COUNTER_ID_LEVEL_RANDOM,
1573     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1574     1,                                  100,
1575     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1576     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1577     &random_placement_value,
1578     "Random element placement:",        NULL, "in"
1579   },
1580   {
1581     ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
1582     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1583     50,                                 500,
1584     GADGET_ID_BD_CYCLE_DELAY_MS_DOWN,   GADGET_ID_BD_CYCLE_DELAY_MS_UP,
1585     GADGET_ID_BD_CYCLE_DELAY_MS_TEXT,   GADGET_ID_NONE,
1586     &level.bd_cycle_delay_ms,
1587     NULL,                               NULL, "Game cycle delay (ms)"
1588   },
1589   {
1590     ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
1591     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1592     0,                                  32,
1593     GADGET_ID_BD_CYCLE_DELAY_C64_DOWN,  GADGET_ID_BD_CYCLE_DELAY_C64_UP,
1594     GADGET_ID_BD_CYCLE_DELAY_C64_TEXT,  GADGET_ID_NONE,
1595     &level.bd_cycle_delay_c64,
1596     NULL,                               NULL, "Game cycle delay (C64-style)"
1597   },
1598   {
1599     ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
1600     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1601     1,                                  40,
1602     GADGET_ID_BD_HATCHING_DELAY_CYCLES_DOWN,    GADGET_ID_BD_HATCHING_DELAY_CYCLES_UP,
1603     GADGET_ID_BD_HATCHING_DELAY_CYCLES_TEXT,    GADGET_ID_NONE,
1604     &level.bd_hatching_delay_cycles,
1605     NULL,                               NULL, "Hatching delay (cycles)"
1606   },
1607   {
1608     ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
1609     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1610     1,                                  40,
1611     GADGET_ID_BD_HATCHING_DELAY_SECONDS_DOWN,   GADGET_ID_BD_HATCHING_DELAY_SECONDS_UP,
1612     GADGET_ID_BD_HATCHING_DELAY_SECONDS_TEXT,   GADGET_ID_NONE,
1613     &level.bd_hatching_delay_seconds,
1614     NULL,                               NULL, "Hatching delay (seconds)"
1615   },
1616
1617   // ---------- element settings: configure (various elements) ----------------
1618
1619   {
1620     ED_COUNTER_ID_BD_PUSHING_PROB,
1621     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1622     0,                                  100,
1623     GADGET_ID_BD_PUSHING_PROB_DOWN,     GADGET_ID_BD_PUSHING_PROB_UP,
1624     GADGET_ID_BD_PUSHING_PROB_TEXT,     GADGET_ID_NONE,
1625     &level.bd_pushing_prob,
1626     NULL,                               NULL, "Push probability"
1627   },
1628   {
1629     ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
1630     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1631     0,                                  100,
1632     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_DOWN,  GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_UP,
1633     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_TEXT,  GADGET_ID_NONE,
1634     &level.bd_pushing_prob_with_sweet,
1635     NULL,                               NULL, "Push probability with sweet"
1636   },
1637   {
1638     ED_COUNTER_ID_ELEMENT_VALUE1,
1639     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1640     MIN_SCORE,                          MAX_SCORE,
1641     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1642     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1643     NULL,                               // will be set when used
1644     NULL,                               NULL, NULL
1645   },
1646   {
1647     ED_COUNTER_ID_ELEMENT_VALUE2,
1648     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1649     MIN_SCORE,                          MAX_SCORE,
1650     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1651     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1652     NULL,                               // will be set when used
1653     NULL,                               NULL, NULL
1654   },
1655   {
1656     ED_COUNTER_ID_ELEMENT_VALUE3,
1657     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1658     MIN_SCORE,                          MAX_SCORE,
1659     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1660     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1661     NULL,                               // will be set when used
1662     NULL,                               NULL, NULL
1663   },
1664   {
1665     ED_COUNTER_ID_ELEMENT_VALUE4,
1666     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1667     MIN_SCORE,                          MAX_SCORE,
1668     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1669     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1670     NULL,                               // will be set when used
1671     NULL,                               NULL, NULL
1672   },
1673   {
1674     ED_COUNTER_ID_YAMYAM_CONTENT,
1675     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1676     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1677     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1678     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1679     &level.num_yamyam_contents,
1680     NULL,                               NULL, "Number of content areas"
1681   },
1682   {
1683     ED_COUNTER_ID_BALL_CONTENT,
1684     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1685     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1686     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1687     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1688     &level.num_ball_contents,
1689     NULL,                               NULL, "Number of content areas"
1690   },
1691   {
1692     ED_COUNTER_ID_ANDROID_CONTENT,
1693     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1694     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1695     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1696     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1697     &level.num_android_clone_elements,
1698     NULL,                               NULL, "Number of clonable elements"
1699   },
1700   {
1701     ED_COUNTER_ID_ENVELOPE_XSIZE,
1702     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1703     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1704     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1705     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1706     NULL,                               // will be set when used
1707     NULL,                               NULL, "Width",
1708   },
1709   {
1710     ED_COUNTER_ID_ENVELOPE_YSIZE,
1711     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1712     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1713     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1714     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1715     NULL,                               // will be set when used
1716     NULL,                               " ", "Height",
1717   },
1718   {
1719     ED_COUNTER_ID_INVENTORY_SIZE,
1720     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1721     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1722     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1723     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1724     &level.initial_inventory_size[0],
1725     NULL,                               NULL, "Number of inventory elements"
1726   },
1727   {
1728     ED_COUNTER_ID_MM_BALL_CONTENT,
1729     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1730     MIN_ELEMENTS_IN_GROUP,              MAX_MM_BALL_CONTENTS,
1731     GADGET_ID_MM_BALL_CONTENT_DOWN,     GADGET_ID_MM_BALL_CONTENT_UP,
1732     GADGET_ID_MM_BALL_CONTENT_TEXT,     GADGET_ID_NONE,
1733     &level.num_mm_ball_contents,
1734     NULL,                               NULL, "Number of content elements"
1735   },
1736
1737   // ---------- element settings: configure 1 (custom elements) ---------------
1738
1739   {
1740     ED_COUNTER_ID_CUSTOM_SCORE,
1741     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1742     MIN_SCORE,                          MAX_SCORE,
1743     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1744     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1745     &custom_element.collect_score_initial,
1746     NULL,                               "CE score", " "
1747   },
1748   {
1749     ED_COUNTER_ID_CUSTOM_GEMCOUNT,
1750     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1751     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1752     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1753     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1754     &custom_element.collect_count_initial,
1755     NULL,                               "CE count", NULL
1756   },
1757   {
1758     ED_COUNTER_ID_CUSTOM_VALUE_FIX,
1759     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1760     0,                                  9999,
1761     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1762     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1763     &custom_element.ce_value_fixed_initial,
1764     NULL,                               "CE value", NULL
1765   },
1766   {
1767     ED_COUNTER_ID_CUSTOM_VALUE_RND,
1768     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1769     0,                                  9999,
1770     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1771     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1772     &custom_element.ce_value_random_initial,
1773     NULL,                               "+random", NULL
1774   },
1775   {
1776     ED_COUNTER_ID_PUSH_DELAY_FIX,
1777     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1778     0,                                  999,
1779     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1780     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1781     &custom_element.push_delay_fixed,
1782     NULL,                               "Push delay", NULL
1783   },
1784   {
1785     ED_COUNTER_ID_PUSH_DELAY_RND,
1786     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1787     0,                                  999,
1788     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1789     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1790     &custom_element.push_delay_random,
1791     NULL,                               "+random", NULL
1792   },
1793   {
1794     ED_COUNTER_ID_DROP_DELAY_FIX,
1795     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1796     0,                                  999,
1797     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1798     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1799     &custom_element.drop_delay_fixed,
1800     NULL,                               "Drop delay", NULL
1801   },
1802   {
1803     ED_COUNTER_ID_DROP_DELAY_RND,
1804     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1805     0,                                  999,
1806     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1807     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1808     &custom_element.drop_delay_random,
1809     NULL,                               "+random", NULL
1810   },
1811
1812   // ---------- element settings: configure 2 (custom elements) ---------------
1813
1814   {
1815     ED_COUNTER_ID_MOVE_DELAY_FIX,
1816     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1817     0,                                  999,
1818     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1819     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1820     &custom_element.move_delay_fixed,
1821     NULL,                               "Move delay", NULL
1822   },
1823   {
1824     ED_COUNTER_ID_MOVE_DELAY_RND,
1825     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1826     0,                                  999,
1827     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1828     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1829     &custom_element.move_delay_random,
1830     NULL,                               "+random", NULL
1831   },
1832   {
1833     ED_COUNTER_ID_STEP_DELAY_FIX,
1834     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1835     0,                                  999,
1836     GADGET_ID_STEP_DELAY_FIX_DOWN,      GADGET_ID_STEP_DELAY_FIX_UP,
1837     GADGET_ID_STEP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1838     &custom_element.step_delay_fixed,
1839     NULL,                               "Step delay", NULL
1840   },
1841   {
1842     ED_COUNTER_ID_STEP_DELAY_RND,
1843     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1844     0,                                  999,
1845     GADGET_ID_STEP_DELAY_RND_DOWN,      GADGET_ID_STEP_DELAY_RND_UP,
1846     GADGET_ID_STEP_DELAY_RND_TEXT,      GADGET_ID_STEP_DELAY_FIX_UP,
1847     &custom_element.step_delay_random,
1848     NULL,                               "+random", NULL
1849   },
1850   {
1851     ED_COUNTER_ID_EXPLOSION_DELAY,
1852     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1853     0,                                  999,
1854     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1855     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1856     &custom_element.explosion_delay,
1857     NULL,                               "Explosion delay", NULL
1858   },
1859   {
1860     ED_COUNTER_ID_IGNITION_DELAY,
1861     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
1862     0,                                  999,
1863     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1864     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1865     &custom_element.ignition_delay,
1866     NULL,                               "Ignition delay", "(by fire)"
1867   },
1868
1869   // ---------- element settings: configure (group elements) ------------------
1870
1871   {
1872     ED_COUNTER_ID_GROUP_CONTENT,
1873     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1874     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1875     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1876     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1877     &group_element_info.num_elements,
1878     NULL,                               NULL, "Number of elements in group"
1879   },
1880
1881   // ---------- element settings: advanced (custom elements) ------------------
1882
1883   {
1884     ED_COUNTER_ID_CHANGE_DELAY_FIX,
1885     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1886     0,                                  999,
1887     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1888     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1889     &custom_element_change.delay_fixed,
1890     NULL,                               "CE delay", NULL,
1891   },
1892   {
1893     ED_COUNTER_ID_CHANGE_DELAY_RND,
1894     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1895     0,                                  999,
1896     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1897     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1898     &custom_element_change.delay_random,
1899     NULL,                               "+random", NULL
1900   },
1901   {
1902     ED_COUNTER_ID_CHANGE_CONT_RND,
1903     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1904     0,                                  100,
1905     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1906     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1907     &custom_element_change.random_percentage,
1908     NULL,                               "Use random replace:", "%"
1909   },
1910 };
1911
1912 static struct
1913 {
1914   int gadget_type_id;
1915   int x, y;
1916   int gadget_id;
1917   int size;
1918   char *value;
1919   char *text_above, *infotext;
1920 } textinput_info[ED_NUM_TEXTINPUT] =
1921 {
1922   {
1923     ED_TEXTINPUT_ID_LEVEL_NAME,
1924     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1925     GADGET_ID_LEVEL_NAME,
1926     MAX_LEVEL_NAME_LEN,
1927     level.name,
1928     "Title:", "Title for this level"
1929   },
1930   {
1931     ED_TEXTINPUT_ID_LEVEL_AUTHOR,
1932     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1933     GADGET_ID_LEVEL_AUTHOR,
1934     MAX_LEVEL_AUTHOR_LEN,
1935     level.author,
1936     "Author:", "Author for this level"
1937   },
1938   {
1939     ED_TEXTINPUT_ID_LEVELSET_NAME,
1940     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1941     GADGET_ID_LEVELSET_NAME,
1942     MAX_LEVEL_NAME_LEN,
1943     levelset_name,
1944     "Title:", "Title for this or new level set"
1945   },
1946   {
1947     ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
1948     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1949     GADGET_ID_LEVELSET_AUTHOR,
1950     MAX_LEVEL_AUTHOR_LEN,
1951     levelset_author,
1952     "Author:", "Author for this or new level set"
1953   },
1954   {
1955     ED_TEXTINPUT_ID_ELEMENT_NAME,
1956     -1, -1,     // these values are not constant, but can change at runtime
1957     GADGET_ID_ELEMENT_NAME,
1958     MAX_ELEMENT_NAME_LEN - 2,           // currently 2 chars less editable
1959     custom_element.description,
1960     NULL, "Element name"
1961   }
1962 };
1963
1964 static struct
1965 {
1966   int gadget_type_id;
1967   int x, y;
1968   int gadget_id;
1969   int xsize, ysize;
1970   char *value;
1971   char *text_above, *text_above_cropped, *infotext;
1972 } textarea_info[ED_NUM_TEXTAREAS] =
1973 {
1974   {
1975     ED_TEXTAREA_ID_ENVELOPE_INFO,
1976     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1977     GADGET_ID_ENVELOPE_INFO,
1978     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1979     NULL,
1980     "Envelope Content:", "Envelope Content (cropped):", "Envelope Content"
1981   }
1982 };
1983
1984 static struct ValueTextInfo options_time_or_steps[] =
1985 {
1986   { 0,                          "seconds"                       },
1987   { 1,                          "steps"                         },
1988
1989   { -1,                         NULL                            }
1990 };
1991
1992 static struct ValueTextInfo options_time_score_base[] =
1993 {
1994   { 1,                          "per second/step"               },
1995   { 10,                         "per 10 seconds/steps"          },
1996
1997   { -1,                         NULL                            }
1998 };
1999
2000 static struct ValueTextInfo options_game_engine_type[] =
2001 {
2002   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
2003   { GAME_ENGINE_TYPE_BD,        "Boulder Dash"                  },
2004   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
2005   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
2006   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
2007
2008   { -1,                         NULL                            }
2009 };
2010
2011 static struct ValueTextInfo options_levelset_save_mode[] =
2012 {
2013   { LEVELSET_SAVE_MODE_UPDATE,  "Update this level set"         },
2014   { LEVELSET_SAVE_MODE_CREATE,  "Create new level set"          },
2015
2016   { -1,                         NULL                            }
2017 };
2018
2019 static struct ValueTextInfo options_wind_direction[] =
2020 {
2021   { MV_START_NONE,              "none"                          },
2022   { MV_START_LEFT,              "left"                          },
2023   { MV_START_RIGHT,             "right"                         },
2024   { MV_START_UP,                "up"                            },
2025   { MV_START_DOWN,              "down"                          },
2026
2027   { -1,                         NULL                            }
2028 };
2029
2030 static struct ValueTextInfo options_player_speed[] =
2031 {
2032   { 0,                          "frozen"                        },
2033   { 1,                          "very slow"                     },
2034   { 2,                          "slow"                          },
2035   { 4,                          "normal"                        },
2036   { 8,                          "fast"                          },
2037   { 16,                         "very fast"                     },
2038   { 32,                         "ultrafast"                     },
2039
2040   { -1,                         NULL                            }
2041 };
2042
2043 static struct ValueTextInfo options_access_type[] =
2044 {
2045   { EP_WALKABLE,                "walkable"                      },
2046   { EP_PASSABLE,                "passable"                      },
2047
2048   { -1,                         NULL                            }
2049 };
2050
2051 static struct ValueTextInfo options_access_layer[] =
2052 {
2053   { EP_ACCESSIBLE_OVER,         "over"                          },
2054   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
2055   { EP_ACCESSIBLE_UNDER,        "under"                         },
2056
2057   { -1,                         NULL                            }
2058 };
2059
2060 static struct ValueTextInfo options_access_protected[] =
2061 {
2062   { 0,                          "unprotected"                   },
2063   { 1,                          "protected"                     },
2064
2065   { -1,                         NULL                            }
2066 };
2067
2068 static struct ValueTextInfo options_access_direction[] =
2069 {
2070   { MV_NO_DIRECTION,            "no direction"                  },
2071   { MV_LEFT,                    "left"                          },
2072   { MV_RIGHT,                   "right"                         },
2073   { MV_UP,                      "up"                            },
2074   { MV_DOWN,                    "down"                          },
2075   { MV_LEFT  | MV_UP,           "left + up"                     },
2076   { MV_LEFT  | MV_DOWN,         "left + down"                   },
2077   { MV_RIGHT | MV_UP,           "right + up"                    },
2078   { MV_RIGHT | MV_DOWN,         "right + down"                  },
2079   { MV_HORIZONTAL,              "horizontal"                    },
2080   { MV_VERTICAL,                "vertical"                      },
2081   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
2082   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
2083   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
2084   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
2085   { MV_ALL_DIRECTIONS,          "all directions"                },
2086
2087   { -1,                         NULL                            }
2088 };
2089
2090 static struct ValueTextInfo options_walk_to_action[] =
2091 {
2092   { EP_DIGGABLE,                "diggable"                      },
2093   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
2094   { EP_DROPPABLE,               "collectible & droppable"       },
2095   { EP_THROWABLE,               "collectible & throwable"       },
2096   { EP_PUSHABLE,                "pushable"                      },
2097
2098   { -1,                         NULL                            }
2099 };
2100
2101 static struct ValueTextInfo options_move_pattern[] =
2102 {
2103   { MV_LEFT,                    "left"                          },
2104   { MV_RIGHT,                   "right"                         },
2105   { MV_UP,                      "up"                            },
2106   { MV_DOWN,                    "down"                          },
2107   { MV_HORIZONTAL,              "horizontal"                    },
2108   { MV_VERTICAL,                "vertical"                      },
2109   { MV_ALL_DIRECTIONS,          "all directions"                },
2110   { MV_WIND_DIRECTION,          "wind direction"                },
2111   { MV_TOWARDS_PLAYER,          "towards player"                },
2112   { MV_AWAY_FROM_PLAYER,        "away from player"              },
2113   { MV_ALONG_LEFT_SIDE,         "along left side"               },
2114   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
2115   { MV_TURNING_LEFT,            "turning left"                  },
2116   { MV_TURNING_RIGHT,           "turning right"                 },
2117   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
2118   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
2119   { MV_TURNING_RANDOM,          "turning random"                },
2120   { MV_MAZE_RUNNER,             "maze runner style"             },
2121   { MV_MAZE_HUNTER,             "maze hunter style"             },
2122   { MV_WHEN_PUSHED,             "when pushed"                   },
2123   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
2124
2125   { -1,                         NULL                            }
2126 };
2127
2128 static struct ValueTextInfo options_move_direction[] =
2129 {
2130   { MV_START_AUTOMATIC,         "automatic"                     },
2131   { MV_START_LEFT,              "left"                          },
2132   { MV_START_RIGHT,             "right"                         },
2133   { MV_START_UP,                "up"                            },
2134   { MV_START_DOWN,              "down"                          },
2135   { MV_START_RANDOM,            "random"                        },
2136   { MV_START_PREVIOUS,          "previous"                      },
2137
2138   { -1,                         NULL                            }
2139 };
2140
2141 static struct ValueTextInfo options_move_stepsize[] =
2142 {
2143   { 0,                          "not moving"                    },
2144   { 1,                          "very slow"                     },
2145   { 2,                          "slow"                          },
2146   { 4,                          "normal"                        },
2147   { 8,                          "fast"                          },
2148   { 16,                         "very fast"                     },
2149   { 32,                         "even faster"                   },
2150
2151   { -1,                         NULL                            }
2152 };
2153
2154 static struct ValueTextInfo options_move_leave_type[] =
2155 {
2156   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
2157   { LEAVE_TYPE_LIMITED,         "change it to"                  },
2158
2159   { -1,                         NULL                            }
2160 };
2161
2162 static struct ValueTextInfo options_smash_targets[] =
2163 {
2164   { EP_CAN_SMASH_PLAYER,        "player"                        },
2165 #if 0
2166   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
2167 #endif
2168   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
2169
2170   { -1,                         NULL                            }
2171 };
2172
2173 static struct ValueTextInfo options_slippery_type[] =
2174 {
2175   { SLIPPERY_ANY_RANDOM,        "random"                        },
2176   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
2177   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
2178   { SLIPPERY_ONLY_LEFT,         "only left"                     },
2179   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
2180
2181   { -1,                         NULL                            }
2182 };
2183
2184 static struct ValueTextInfo options_deadliness[] =
2185 {
2186   { EP_DONT_RUN_INTO,           "running into"                  },
2187   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
2188   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
2189   { EP_DONT_TOUCH,              "touching"                      },
2190
2191   { -1,                         NULL                            }
2192 };
2193
2194 static struct ValueTextInfo options_explosion_type[] =
2195 {
2196   { EXPLODES_3X3,               "3x3"                           },
2197   { EXPLODES_CROSS,             "3+3"                           },
2198   { EXPLODES_1X1,               "1x1"                           },
2199
2200   { -1,                         NULL                            }
2201 };
2202
2203 static struct ValueTextInfo options_time_units[] =
2204 {
2205   { 1,                          "frames"                        },
2206   { FRAMES_PER_SECOND,          "seconds"                       },
2207
2208   { -1,                         NULL                            }
2209 };
2210
2211 static struct ValueTextInfo options_change_direct_action[] =
2212 {
2213   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
2214   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
2215   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
2216   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
2217   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
2218   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
2219   { CE_LEFT_BY_PLAYER,          "left by player"                },
2220   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
2221   { CE_SWITCHED,                "switched"                      },
2222   { CE_HITTING_SOMETHING,       "hitting something"             },
2223   { CE_HIT_BY_SOMETHING,        "hit by something"              },
2224 #if 0
2225   { CE_BLOCKED,                 "blocked"                       },
2226 #endif
2227   { CE_IMPACT,                  "impact (on something)"         },
2228   { CE_SMASHED,                 "smashed (from above)"          },
2229 #if 0
2230   { CE_VALUE_CHANGES,           "CE value changes"              },
2231   { CE_SCORE_CHANGES,           "CE score changes"              },
2232 #endif
2233   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
2234   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
2235   { CE_UNDEFINED,               " "                             },
2236   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2237   { CE_CLICKED_BY_MOUSE,        "clicked by mouse"              },
2238   { CE_PRESSED_BY_MOUSE,        "pressed by mouse"              },
2239   { CE_UNDEFINED,               " "                             },
2240   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2241   { CE_NEXT_TO_PLAYER,          "next to player"                },
2242
2243   { -1,                         NULL                            }
2244 };
2245
2246 static struct ValueTextInfo options_change_other_action[] =
2247 {
2248   { CE_PLAYER_TOUCHES_X,        "player touches"                },
2249   { CE_PLAYER_PRESSES_X,        "player presses"                },
2250   { CE_PLAYER_SWITCHES_X,       "player switches"               },
2251   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
2252   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
2253   { CE_PLAYER_ENTERS_X,         "player enters"                 },
2254   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
2255   { CE_PLAYER_DIGS_X,           "player digs"                   },
2256   { CE_PLAYER_COLLECTS_X,       "player collects"               },
2257   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
2258   { CE_TOUCHING_X,              "touching"                      },
2259   { CE_HITTING_X,               "hitting"                       },
2260   { CE_DIGGING_X,               "digging"                       },
2261   { CE_HIT_BY_X,                "hit by"                        },
2262   { CE_SWITCH_OF_X,             "switch of"                     },
2263   { CE_CHANGE_OF_X,             "change by page of"             },
2264   { CE_EXPLOSION_OF_X,          "explosion of"                  },
2265   { CE_MOVE_OF_X,               "move of"                       },
2266   { CE_CREATION_OF_X,           "creation of"                   },
2267   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
2268   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
2269   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
2270   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
2271   { CE_UNDEFINED,               " "                             },
2272   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2273   { CE_MOUSE_CLICKED_ON_X,      "mouse clicked on"              },
2274   { CE_MOUSE_PRESSED_ON_X,      "mouse pressed on"              },
2275   { CE_UNDEFINED,               " "                             },
2276   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2277   { CE_PLAYER_NEXT_TO_X,        "player next to"                },
2278   { CE_NEXT_TO_X,               "next to"                       },
2279
2280   { -1,                         NULL                            }
2281 };
2282
2283 static struct ValueTextInfo options_change_trigger_side[] =
2284 {
2285   { CH_SIDE_LEFT,               "left"                          },
2286   { CH_SIDE_RIGHT,              "right"                         },
2287   { CH_SIDE_TOP,                "top"                           },
2288   { CH_SIDE_BOTTOM,             "bottom"                        },
2289   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
2290   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
2291   { CH_SIDE_ANY,                "any"                           },
2292
2293   { -1,                         NULL                            }
2294 };
2295
2296 static struct ValueTextInfo options_change_trigger_player[] =
2297 {
2298   { CH_PLAYER_1,                "1"                             },
2299   { CH_PLAYER_2,                "2"                             },
2300   { CH_PLAYER_3,                "3"                             },
2301   { CH_PLAYER_4,                "4"                             },
2302   { CH_PLAYER_ANY,              "any"                           },
2303
2304   { -1,                         NULL                            }
2305 };
2306
2307 static struct ValueTextInfo options_change_trigger_page[] =
2308 {
2309   { (1u << 0),                  "1"                             },
2310   { (1u << 1),                  "2"                             },
2311   { (1u << 2),                  "3"                             },
2312   { (1u << 3),                  "4"                             },
2313   { (1u << 4),                  "5"                             },
2314   { (1u << 5),                  "6"                             },
2315   { (1u << 6),                  "7"                             },
2316   { (1u << 7),                  "8"                             },
2317   { (1u << 8),                  "9"                             },
2318   { (1u << 9),                  "10"                            },
2319   { (1u << 10),                 "11"                            },
2320   { (1u << 11),                 "12"                            },
2321   { (1u << 12),                 "13"                            },
2322   { (1u << 13),                 "14"                            },
2323   { (1u << 14),                 "15"                            },
2324   { (1u << 15),                 "16"                            },
2325   { (1u << 16),                 "17"                            },
2326   { (1u << 17),                 "18"                            },
2327   { (1u << 18),                 "19"                            },
2328   { (1u << 19),                 "20"                            },
2329   { (1u << 20),                 "21"                            },
2330   { (1u << 21),                 "22"                            },
2331   { (1u << 22),                 "23"                            },
2332   { (1u << 23),                 "24"                            },
2333   { (1u << 24),                 "25"                            },
2334   { (1u << 25),                 "26"                            },
2335   { (1u << 26),                 "27"                            },
2336   { (1u << 27),                 "28"                            },
2337   { (1u << 28),                 "29"                            },
2338   { (1u << 29),                 "30"                            },
2339   { (1u << 30),                 "31"                            },
2340   { (1u << 31),                 "32"                            },
2341   { CH_PAGE_ANY,                "any"                           },
2342
2343   { -1,                         NULL                            }
2344 };
2345
2346 static struct ValueTextInfo options_change_replace_when[] =
2347 {
2348   { CP_WHEN_EMPTY,              "empty"                         },
2349   { CP_WHEN_WALKABLE,           "walkable"                      },
2350   { CP_WHEN_DIGGABLE,           "diggable"                      },
2351   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
2352   { CP_WHEN_REMOVABLE,          "removable"                     },
2353   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
2354
2355   { -1,                         NULL                            }
2356 };
2357
2358 static struct ValueTextInfo options_action_type[] =
2359 {
2360   { CA_NO_ACTION,               "no action"                     },
2361   { CA_UNDEFINED,               " "                             },
2362   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
2363   { CA_RESTART_LEVEL,           "restart level"                 },
2364   { CA_SHOW_ENVELOPE,           "show envelope"                 },
2365   { CA_SET_LEVEL_TIME,          "set time"                      },
2366   { CA_SET_LEVEL_SCORE,         "set score"                     },
2367   { CA_SET_LEVEL_GEMS,          "set gems"                      },
2368   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
2369   { CA_SET_LEVEL_RANDOM_SEED,   "set random seed"               },
2370   { CA_UNDEFINED,               " "                             },
2371   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
2372   { CA_MOVE_PLAYER,             "move player"                   },
2373   { CA_MOVE_PLAYER_NEW,         "move player new"               },
2374   { CA_EXIT_PLAYER,             "exit player"                   },
2375   { CA_KILL_PLAYER,             "kill player"                   },
2376   { CA_SET_PLAYER_KEYS,         "set keys"                      },
2377   { CA_SET_PLAYER_SPEED,        "set speed"                     },
2378   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
2379   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
2380   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
2381   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
2382   { CA_UNDEFINED,               " "                             },
2383   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
2384   { CA_SET_CE_VALUE,            "set CE value"                  },
2385   { CA_SET_CE_SCORE,            "set CE score"                  },
2386   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
2387   { CA_UNDEFINED,               " "                             },
2388   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
2389   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
2390
2391   { -1,                         NULL                            }
2392 };
2393
2394 static struct ValueTextInfo options_action_mode_none[] =
2395 {
2396   { CA_MODE_UNDEFINED,          " "                             },
2397
2398   { -1,                         NULL                            }
2399 };
2400
2401 static struct ValueTextInfo options_action_mode_assign[] =
2402 {
2403   { CA_MODE_SET,                "="                             },
2404
2405   { -1,                         NULL                            }
2406 };
2407
2408 static struct ValueTextInfo options_action_mode_add_remove[] =
2409 {
2410   { CA_MODE_ADD,                "+"                             },
2411   { CA_MODE_SUBTRACT,           "-"                             },
2412
2413   { -1,                         NULL                            }
2414 };
2415
2416 static struct ValueTextInfo options_action_mode_calculate[] =
2417 {
2418   { CA_MODE_SET,                "="                             },
2419   { CA_MODE_ADD,                "+"                             },
2420   { CA_MODE_SUBTRACT,           "-"                             },
2421   { CA_MODE_MULTIPLY,           "*"                             },
2422   { CA_MODE_DIVIDE,             "/"                             },
2423   { CA_MODE_MODULO,             "%"                             },
2424
2425   { -1,                         NULL                            }
2426 };
2427
2428 static struct ValueTextInfo options_action_arg_none[] =
2429 {
2430   { CA_ARG_UNDEFINED,           "         "                     },
2431
2432   { -1,                         NULL                            }
2433 };
2434
2435 static struct ValueTextInfo options_action_arg_player[] =
2436 {
2437   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2438   { CA_ARG_PLAYER_1,            "1"                             },
2439   { CA_ARG_PLAYER_2,            "2"                             },
2440   { CA_ARG_PLAYER_3,            "3"                             },
2441   { CA_ARG_PLAYER_4,            "4"                             },
2442   { CA_ARG_PLAYER_ANY,          "any"                           },
2443   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2444   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2445
2446   { -1,                         NULL                            }
2447 };
2448
2449 static struct ValueTextInfo options_action_arg_number[] =
2450 {
2451   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2452   { CA_ARG_0,                   "0"                             },
2453   { CA_ARG_1,                   "1"                             },
2454   { CA_ARG_2,                   "2"                             },
2455   { CA_ARG_3,                   "3"                             },
2456   { CA_ARG_4,                   "4"                             },
2457   { CA_ARG_5,                   "5"                             },
2458   { CA_ARG_10,                  "10"                            },
2459   { CA_ARG_100,                 "100"                           },
2460   { CA_ARG_1000,                "1000"                          },
2461   { CA_ARG_UNDEFINED,           " "                             },
2462   { CA_ARG_NUMBER_MIN,          "min"                           },
2463   { CA_ARG_NUMBER_MAX,          "max"                           },
2464   { CA_ARG_UNDEFINED,           " "                             },
2465   { CA_ARG_NUMBER_RESET,        "reset"                         },
2466   { CA_ARG_UNDEFINED,           " "                             },
2467   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2468   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2469   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2470   { CA_ARG_UNDEFINED,           " "                             },
2471   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2472   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2473   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2474   { CA_ARG_UNDEFINED,           " "                             },
2475   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2476   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2477   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2478   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2479   { CA_ARG_UNDEFINED,           " "                             },
2480   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2481   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2482   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2483   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2484
2485   { -1,                         NULL                            }
2486 };
2487
2488 static struct ValueTextInfo options_action_arg_value[] =
2489 {
2490   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2491   { CA_ARG_0,                   "0"                             },
2492   { CA_ARG_1,                   "1"                             },
2493   { CA_ARG_2,                   "2"                             },
2494   { CA_ARG_3,                   "3"                             },
2495   { CA_ARG_4,                   "4"                             },
2496   { CA_ARG_5,                   "5"                             },
2497   { CA_ARG_10,                  "10"                            },
2498   { CA_ARG_100,                 "100"                           },
2499   { CA_ARG_1000,                "1000"                          },
2500   { CA_ARG_UNDEFINED,           " "                             },
2501   { CA_ARG_NUMBER_MIN,          "min"                           },
2502   { CA_ARG_NUMBER_MAX,          "max"                           },
2503   { CA_ARG_UNDEFINED,           " "                             },
2504   { CA_ARG_NUMBER_RESET,        "reset"                         },
2505   { CA_ARG_UNDEFINED,           " "                             },
2506   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2507   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2508   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2509   { CA_ARG_UNDEFINED,           " "                             },
2510   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2511   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2512   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2513   { CA_ARG_UNDEFINED,           " "                             },
2514   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2515   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2516   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2517   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2518   { CA_ARG_UNDEFINED,           " "                             },
2519   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2520   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2521   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2522   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2523   { CA_ARG_UNDEFINED,           " "                             },
2524   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2525   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2526   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2527   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2528
2529   { -1,                         NULL                            }
2530 };
2531
2532 static struct ValueTextInfo options_action_arg_envelope[] =
2533 {
2534   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2535   { CA_ARG_1,                   "1"                             },
2536   { CA_ARG_2,                   "2"                             },
2537   { CA_ARG_3,                   "3"                             },
2538   { CA_ARG_4,                   "4"                             },
2539   { CA_ARG_UNDEFINED,           " "                             },
2540   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2541   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2542   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2543   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2544
2545   { -1,                         NULL                            }
2546 };
2547
2548 static struct ValueTextInfo options_action_arg_key[] =
2549 {
2550   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2551   { CA_ARG_1,                   "1"                             },
2552   { CA_ARG_2,                   "2"                             },
2553   { CA_ARG_3,                   "3"                             },
2554   { CA_ARG_4,                   "4"                             },
2555   { CA_ARG_5,                   "5"                             },
2556   { CA_ARG_6,                   "6"                             },
2557   { CA_ARG_7,                   "7"                             },
2558   { CA_ARG_8,                   "8"                             },
2559   { CA_ARG_UNDEFINED,           " "                             },
2560   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2561   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2562   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2563   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2564
2565   { -1,                         NULL                            }
2566 };
2567
2568 static struct ValueTextInfo options_action_arg_speed[] =
2569 {
2570   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2571   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2572   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2573   { CA_ARG_SPEED_SLOW,          "slow"                          },
2574   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2575   { CA_ARG_SPEED_FAST,          "fast"                          },
2576   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2577   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2578   { CA_ARG_UNDEFINED,           " "                             },
2579   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2580   { CA_ARG_SPEED_FASTER,        "faster"                        },
2581   { CA_ARG_UNDEFINED,           " "                             },
2582   { CA_ARG_SPEED_RESET,         "reset"                         },
2583
2584   { -1,                         NULL                            }
2585 };
2586
2587 static struct ValueTextInfo options_action_arg_shield[] =
2588 {
2589   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2590   { CA_ARG_SHIELD_OFF,          "off"                           },
2591   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2592   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2593
2594   { -1,                         NULL                            }
2595 };
2596
2597 static struct ValueTextInfo options_action_arg_artwork[] =
2598 {
2599   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2600   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2601   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2602   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2603   { CA_ARG_UNDEFINED,           " "                             },
2604   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2605
2606   { -1,                         NULL                            }
2607 };
2608
2609 static struct ValueTextInfo options_action_arg_gravity[] =
2610 {
2611   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2612   { CA_ARG_GRAVITY_ON,          "on"                            },
2613   { CA_ARG_GRAVITY_OFF,         "off"                           },
2614   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2615
2616   { -1,                         NULL                            }
2617 };
2618
2619 static struct ValueTextInfo options_action_arg_direction[] =
2620 {
2621   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2622   { CA_ARG_DIRECTION_NONE,      "none"                          },
2623   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2624   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2625   { CA_ARG_DIRECTION_UP,        "up"                            },
2626   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2627   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2628   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2629
2630   { -1,                         NULL                            }
2631 };
2632
2633 static struct ValueTextInfo options_action_arg_scan_mode[] =
2634 {
2635   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2636   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2637   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2638
2639   { -1,                         NULL                            }
2640 };
2641
2642 static struct ValueTextInfo options_action_arg_inventory[] =
2643 {
2644   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2645   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2646   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2647   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2648   { CA_ARG_UNDEFINED,           " "                             },
2649   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2650   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2651   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2652   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2653   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2654   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2655   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2656   { CA_ARG_UNDEFINED,           " "                             },
2657   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2658
2659   { -1,                         NULL                            }
2660 };
2661
2662 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2663 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2664 {
2665   { -1,                         NULL                            }
2666 };
2667
2668 static struct ValueTextInfo options_group_choice_mode[] =
2669 {
2670   { ANIM_RANDOM,                "random"                        },
2671   { ANIM_LOOP,                  "loop"                          },
2672   { ANIM_LINEAR,                "linear"                        },
2673   { ANIM_PINGPONG,              "pingpong"                      },
2674   { ANIM_PINGPONG2,             "pingpong 2"                    },
2675   { ANIM_LEVEL_NR,              "level number"                  },
2676
2677   { -1,                         NULL                            }
2678 };
2679
2680 static struct ValueTextInfo options_bd_scheduling_type[] =
2681 {
2682   { GD_SCHEDULING_MILLISECONDS,   "Milliseconds"                },
2683   { GD_SCHEDULING_BD1,            "BD1"                         },
2684   { GD_SCHEDULING_BD2,            "BD2"                         },
2685   { GD_SCHEDULING_PLCK,           "Construction Kit"            },
2686   { GD_SCHEDULING_CRDR,           "Crazy Dream 7"               },
2687   { GD_SCHEDULING_BD1_ATARI,      "Atari BD1"                   },
2688   { GD_SCHEDULING_BD2_PLCK_ATARI, "Atari BD2 / PLCK"            },
2689
2690   { -1,                           NULL                          }
2691 };
2692
2693 static struct ValueTextInfo *action_arg_modes[] =
2694 {
2695   options_action_mode_none,
2696   options_action_mode_assign,
2697   options_action_mode_add_remove,
2698   options_action_mode_calculate,
2699 };
2700
2701 static struct
2702 {
2703   int value;
2704   int mode;
2705   struct ValueTextInfo *options;
2706 }
2707 action_arg_options[] =
2708 {
2709   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2710   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2711   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2712   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2713   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2714   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2715   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2716   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2717   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2718   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2719   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2720   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2721   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2722   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2723   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2724   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2725   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2726   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2727   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2728   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2729   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2730   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2731
2732   { -1,                         FALSE,  NULL                            }
2733 };
2734
2735 static struct
2736 {
2737   int gadget_type_id;
2738   int x, y;
2739   int gadget_id;
2740   int gadget_id_align;
2741   int size;     // char size of selectbox or '-1' (dynamically determined)
2742   struct ValueTextInfo *options;
2743   int *value;
2744   char *text_above, *text_left, *text_right, *infotext;
2745 } selectbox_info[ED_NUM_SELECTBOX] =
2746 {
2747   // ---------- level and editor settings -------------------------------------
2748
2749   {
2750     ED_SELECTBOX_ID_TIME_OR_STEPS,
2751     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2752     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2753     -1,
2754     options_time_or_steps,
2755     &level.use_step_counter,
2756     NULL, NULL, "(0 => no limit)",      "Select time or step limit"
2757   },
2758   {
2759     ED_SELECTBOX_ID_TIME_SCORE_BASE,
2760     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2761     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2762     -1,
2763     options_time_score_base,
2764     &level.time_score_base,
2765     NULL, NULL, NULL,                   "Select time score for 1 or 10 seconds/steps"
2766   },
2767   {
2768     ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
2769     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2770     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2771     -1,
2772     options_game_engine_type,
2773     &level.game_engine_type,
2774     NULL, "Game engine:", NULL,         "Select game engine"
2775   },
2776   {
2777     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
2778     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
2779     GADGET_ID_BD_SCHEDULING_TYPE,       GADGET_ID_NONE,
2780     -1,
2781     options_bd_scheduling_type,
2782     &level.bd_scheduling_type,
2783     NULL, "Scheduling type:", NULL,     "Select level timing"
2784   },
2785   {
2786     ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
2787     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2788     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2789     -1,
2790     options_levelset_save_mode,
2791     &levelset_save_mode,
2792     "Action:", NULL, NULL,              "Select action when saving level set"
2793   },
2794
2795   // ---------- element settings: configure (several elements) ----------------
2796
2797   {
2798     ED_SELECTBOX_ID_WIND_DIRECTION,
2799     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2800     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2801     -1,
2802     options_wind_direction,
2803     &level.wind_direction_initial,
2804     NULL, "Initial wind direction:", NULL,      "Select initial wind direction"
2805   },
2806   {
2807     ED_SELECTBOX_ID_PLAYER_SPEED,
2808     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2809     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2810     -1,
2811     options_player_speed,
2812     &level.initial_player_stepsize[0],
2813     NULL, "Initial player speed:", NULL,        "Select initial player speed"
2814   },
2815   {
2816     ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
2817     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2818     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2819     -1,
2820     options_group_choice_mode,
2821     &level.mm_ball_choice_mode,
2822     NULL, "Choice type:", NULL,         "Select type of content choice"
2823   },
2824
2825   // ---------- element settings: configure 1 (custom elements) ---------------
2826
2827   {
2828     ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
2829     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2830     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2831     -1,
2832     options_access_type,
2833     &custom_element.access_type,
2834     NULL, NULL, NULL,                   "Select type of access to this field"
2835   },
2836   {
2837     ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
2838     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2839     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2840     -1,
2841     options_access_layer,
2842     &custom_element.access_layer,
2843     NULL, NULL, NULL,                   "Select layer of access for this field"
2844   },
2845   {
2846     ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
2847     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2848     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2849     -1,
2850     options_access_protected,
2851     &custom_element.access_protected,
2852     NULL, NULL, NULL,                   "Select protected access for this field"
2853   },
2854   {
2855     ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
2856     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2857     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2858     -1,
2859     options_access_direction,
2860     &custom_element.access_direction,
2861     NULL, "from", NULL,                 "Select access direction for this field"
2862   },
2863   {
2864     ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
2865     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2866     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2867     -1,
2868     options_walk_to_action,
2869     &custom_element.walk_to_action,
2870     NULL, NULL, NULL,                   "Select diggable/collectible/pushable"
2871   },
2872
2873   // ---------- element settings: configure 2 (custom elements) ---------------
2874
2875   {
2876     ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
2877     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2878     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2879     -1,
2880     options_move_pattern,
2881     &custom_element.move_pattern,
2882     NULL, "Can move", NULL,             "Select element move pattern"
2883   },
2884   {
2885     ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
2886     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2887     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2888     -1,
2889     options_move_direction,
2890     &custom_element.move_direction_initial,
2891     NULL, "Starts moving", NULL,        "Select initial element move direction"
2892   },
2893   {
2894     ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
2895     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2896     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2897     -1,
2898     options_move_stepsize,
2899     &custom_element.move_stepsize,
2900     NULL, "Move/fall speed", NULL,      "Select speed of element movement"
2901   },
2902   {
2903     ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
2904     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2905     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2906     -1,
2907     options_move_leave_type,
2908     &custom_element.move_leave_type,
2909     // left text with leading spaces to place gadget next to "can dig" gadget
2910     // (needed because drawing area gadgets created after selectbox gadgets)
2911     // NULL, "can dig:    can", ":",    "leave behind or change element"
2912     NULL, "            Can", ":",       "Select leave behind or change element"
2913   },
2914   {
2915     ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
2916     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2917     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2918     -1,
2919     options_smash_targets,
2920     &custom_element.smash_targets,
2921     NULL, "Can smash", NULL,            "Select elements that can be smashed"
2922   },
2923   {
2924     ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
2925     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2926     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2927     -1,
2928     options_slippery_type,
2929     &custom_element.slippery_type,
2930     NULL, "Slippery", NULL,             "Select where other elements fall down"
2931   },
2932   {
2933     ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
2934     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2935     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2936     -1,
2937     options_deadliness,
2938     &custom_element.deadliness,
2939     NULL, "Deadly when", NULL,          "Select deadliness of element"
2940   },
2941   {
2942     ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
2943     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2944     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2945     -1,
2946     options_explosion_type,
2947     &custom_element.explosion_type,
2948     NULL, "Can explode", NULL,          "Select explosion type"
2949   },
2950
2951   // ---------- element settings: advanced (custom elements) ------------------
2952
2953   {
2954     ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
2955     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2956     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2957     -1,
2958     options_time_units,
2959     &custom_element_change.delay_frames,
2960     NULL, "Delay time given in", NULL,  "Select delay time units for change"
2961   },
2962   {
2963     ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
2964     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2965     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2966     -1,
2967     options_change_direct_action,
2968     &custom_element_change.direct_action,
2969     NULL, NULL, NULL,                   "Select type of direct action"
2970   },
2971   {
2972     ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
2973     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2974     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2975     -1,
2976     options_change_other_action,
2977     &custom_element_change.other_action,
2978     NULL, NULL, "element:",             "Select type of other element action"
2979   },
2980   {
2981     ED_SELECTBOX_ID_CHANGE_SIDE,
2982     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2983     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2984     -1,
2985     options_change_trigger_side,
2986     &custom_element_change.trigger_side,
2987     NULL, "at", "side",                 "Select element side triggering change"
2988   },
2989   {
2990     ED_SELECTBOX_ID_CHANGE_PLAYER,
2991     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2992     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2993     -1,
2994     options_change_trigger_player,
2995     &custom_element_change.trigger_player,
2996     NULL, "Player:", " ",               "Select player that causes change"
2997   },
2998   {
2999     ED_SELECTBOX_ID_CHANGE_PAGE,
3000     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
3001     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
3002     -1,
3003     options_change_trigger_page,
3004     &custom_element_change.trigger_page,
3005     NULL, "Page:", NULL,                "Select change page that causes change"
3006   },
3007   {
3008     ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
3009     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
3010     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
3011     -1,
3012     options_change_replace_when,
3013     &custom_element_change.replace_when,
3014     NULL, "Replace when", NULL,         "Select which elements can be replaced"
3015   },
3016   {
3017     ED_SELECTBOX_ID_ACTION_TYPE,
3018     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
3019     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
3020     15,
3021     options_action_type,
3022     &custom_element_change.action_type,
3023     NULL, NULL, NULL,                   "Select action on specified condition"
3024   },
3025   {
3026     ED_SELECTBOX_ID_ACTION_MODE,
3027     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3028     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
3029     -1,
3030     options_action_mode_none,
3031     &custom_element_change.action_mode,
3032     NULL, NULL, NULL,                   "Select action operator"
3033   },
3034   {
3035     ED_SELECTBOX_ID_ACTION_ARG,
3036     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3037     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
3038     -1,
3039     options_action_arg_none,
3040     &custom_element_change.action_arg,
3041     NULL, NULL, NULL,                   "Select action parameter"
3042   },
3043   {
3044     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
3045     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
3046     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
3047     3,
3048     options_change_page,
3049     &custom_element.current_change_page,
3050     NULL, NULL, NULL,                   "Select element change page"
3051   },
3052
3053   // ---------- element settings: configure (group elements) ------------------
3054
3055   {
3056     ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
3057     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3058     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
3059     -1,
3060     options_group_choice_mode,
3061     &group_element_info.choice_mode,
3062     NULL, "Choice type:", NULL,         "Select type of group element choice"
3063   },
3064 };
3065
3066 static struct
3067 {
3068   int gadget_type_id;
3069   int x, y;
3070   int gadget_id;
3071   int gadget_id_align;
3072   int size;
3073   char *text;
3074   char *text_above, *text_left, *text_right, *infotext;
3075 } textbutton_info[ED_NUM_TEXTBUTTONS] =
3076 {
3077   // ---------- level and editor settings (tabs) ------------------------------
3078
3079   {
3080     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
3081     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
3082     GADGET_ID_LEVELCONFIG_LEVEL,        GADGET_ID_NONE,
3083     8,                                  "Level",
3084     NULL, NULL, NULL,                   "Configure level settings"
3085   },
3086   {
3087     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
3088     -1,                                 -1,
3089     GADGET_ID_LEVELCONFIG_LEVELSET,     GADGET_ID_LEVELCONFIG_LEVEL,
3090     8,                                  "Levelset",
3091     NULL, NULL, NULL,                   "Update this or create new level set"
3092   },
3093   {
3094     ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
3095     -1,                                 -1,
3096     GADGET_ID_LEVELCONFIG_EDITOR,       GADGET_ID_LEVELCONFIG_LEVELSET,
3097     8,                                  "Editor",
3098     NULL, NULL, NULL,                   "Configure editor settings"
3099   },
3100   {
3101     ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
3102     -1,                                 -1,
3103     GADGET_ID_LEVELCONFIG_ENGINE,       GADGET_ID_LEVELCONFIG_EDITOR,
3104     8,                                  "Engine",
3105     NULL, NULL, NULL,                   "Configure engine settings"
3106   },
3107
3108   // ---------- element settings (tabs) ---------------------------------------
3109
3110   {
3111     ED_TEXTBUTTON_ID_PROPERTIES_INFO,
3112     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
3113     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
3114     8,                                  "Info",
3115     NULL, NULL, NULL,                   "Show information about element"
3116   },
3117   {
3118     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
3119     -1,                                 -1,
3120     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
3121     8,                                  "Config",
3122     NULL, NULL, NULL,                   "Configure element properties"
3123   },
3124   {
3125     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
3126     -1,                                 -1,
3127     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
3128     8,                                  "Config 1",
3129     NULL, NULL, NULL,                   "Configure element properties, part 1"
3130   },
3131   {
3132     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
3133     -1,                                 -1,
3134     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
3135     8,                                  "Config 2",
3136     NULL, NULL, NULL,                   "Configure element properties, part 2"
3137   },
3138   {
3139     ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
3140     -1,                                 -1,
3141     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
3142     8,                                  "Change",
3143     NULL, NULL, NULL,                   "Configure custom element change pages"
3144   },
3145
3146   // ---------- level and editor settings (buttons) ---------------------------
3147
3148   {
3149     ED_TEXTBUTTON_ID_SAVE_LEVELSET,
3150     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
3151     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
3152     -1,                                 "Save",
3153     NULL, NULL, NULL,                   "Update or create level set"
3154   },
3155   {
3156     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
3157     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3158     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
3159     -1,                                 "Save",
3160     NULL, NULL,                         "this level as level template",
3161     "Save current settings as new template"
3162   },
3163
3164   // ---------- element settings (buttons) ------------------------------------
3165
3166   {
3167     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
3168     -1,                                 -1,
3169     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
3170     -1,                                 "Save",
3171     NULL, " ",                          "As Template",
3172     "Save current settings as new template"
3173   },
3174   {
3175     ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
3176     -1,                                 -1,
3177     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
3178     -1,                                 "New",
3179     NULL, NULL, NULL,                   "Add new change page"
3180   },
3181   {
3182     ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
3183     -1,                                 -1,
3184     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
3185     -1,                                 "Delete",
3186     NULL, NULL, NULL,                   "Delete current change page"
3187   },
3188 };
3189
3190 static struct
3191 {
3192   int gadget_type_id;
3193   int graphic;
3194   int x, y;
3195   int gadget_id;
3196   int gadget_id_align;
3197   char *text_left, *text_right, *infotext;
3198 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
3199 {
3200   {
3201     ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
3202     IMG_EDITOR_COUNTER_DOWN,
3203     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3204     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
3205     NULL, NULL,                         "Select previous change page"
3206   },
3207   {
3208     ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
3209     IMG_EDITOR_COUNTER_UP,
3210     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3211     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
3212     NULL, "Change page",                "Select next change page"
3213   },
3214   {
3215     ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
3216     IMG_GFX_EDITOR_BUTTON_CP_COPY,
3217     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3218     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
3219     " ", NULL,                          "Copy settings from this change page"
3220   },
3221   {
3222     ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
3223     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
3224     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3225     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
3226     NULL, NULL,                         "Paste settings to this change page"
3227   },
3228 };
3229
3230 static struct
3231 {
3232   int x, y;
3233 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
3234
3235 static struct
3236 {
3237   int gadget_type_id;
3238   int graphic;
3239   int gadget_id;
3240   char *infotext;
3241 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
3242 {
3243   {
3244     ED_SCROLLBUTTON_ID_AREA_UP,
3245     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
3246     GADGET_ID_SCROLL_UP,
3247     "Scroll level editing area up"
3248   },
3249   {
3250     ED_SCROLLBUTTON_ID_AREA_DOWN,
3251     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
3252     GADGET_ID_SCROLL_DOWN,
3253     "Scroll level editing area down"
3254   },
3255   {
3256     ED_SCROLLBUTTON_ID_AREA_LEFT,
3257     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
3258     GADGET_ID_SCROLL_LEFT,
3259     "Scroll level editing area left"
3260   },
3261   {
3262     ED_SCROLLBUTTON_ID_AREA_RIGHT,
3263     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
3264     GADGET_ID_SCROLL_RIGHT,
3265     "Scroll level editing area right"
3266   },
3267   {
3268     ED_SCROLLBUTTON_ID_LIST_UP,
3269     IMG_EDITOR_PALETTE_SCROLL_UP,
3270     GADGET_ID_SCROLL_LIST_UP,
3271     "Scroll element list up ('Page Up')"
3272   },
3273   {
3274     ED_SCROLLBUTTON_ID_LIST_DOWN,
3275     IMG_EDITOR_PALETTE_SCROLL_DOWN,
3276     GADGET_ID_SCROLL_LIST_DOWN,
3277     "Scroll element list down ('Page Down')"
3278   },
3279 };
3280
3281 static struct
3282 {
3283   int x, y;
3284   int width, height;
3285   int wheel_x, wheel_y;
3286   int wheel_width, wheel_height;
3287 } scrollbar_pos[ED_NUM_SCROLLBARS];
3288
3289 static struct
3290 {
3291   int gadget_type_id;
3292   int graphic;
3293   int type;
3294   int gadget_id;
3295   char *infotext;
3296 } scrollbar_info[ED_NUM_SCROLLBARS] =
3297 {
3298   {
3299     ED_SCROLLBAR_ID_AREA_HORIZONTAL,
3300     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3301     GD_TYPE_SCROLLBAR_HORIZONTAL,
3302     GADGET_ID_SCROLL_HORIZONTAL,
3303     "Scroll level editing area horizontally"
3304   },
3305   {
3306     ED_SCROLLBAR_ID_AREA_VERTICAL,
3307     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3308     GD_TYPE_SCROLLBAR_VERTICAL,
3309     GADGET_ID_SCROLL_VERTICAL,
3310     "Scroll level editing area vertically"
3311   },
3312   {
3313     ED_SCROLLBAR_ID_LIST_VERTICAL,
3314     IMG_EDITOR_PALETTE_SCROLLBAR,
3315     GD_TYPE_SCROLLBAR_VERTICAL,
3316     GADGET_ID_SCROLL_LIST_VERTICAL,
3317     "Scroll element list vertically"
3318   }
3319 };
3320
3321
3322 static struct
3323 {
3324   int gadget_type_id;
3325   int x, y;
3326   int gadget_id;
3327   int gadget_id_align;
3328   int radio_button_nr;
3329   int *value;
3330   int checked_value;
3331   char *text_left, *text_right, *infotext;
3332 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3333 {
3334   {
3335     ED_RADIOBUTTON_ID_PERCENTAGE,
3336     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3337     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3338     RADIO_NR_RANDOM_ELEMENTS,
3339     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3340     " ", "percentage",                  "Use percentage for random elements"
3341   },
3342   {
3343     ED_RADIOBUTTON_ID_QUANTITY,
3344     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3345     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3346     RADIO_NR_RANDOM_ELEMENTS,
3347     &random_placement_method,           RANDOM_USE_QUANTITY,
3348     " ", "quantity",                    "Use quantity for random elements"
3349   }
3350 };
3351
3352 static struct
3353 {
3354   int gadget_type_id;
3355   int x, y;
3356   int gadget_id;
3357   int gadget_id_align;
3358   boolean *value;
3359   char *text_above, *text_left, *text_right, *infotext;
3360 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3361 {
3362   // ---------- level and editor settings -------------------------------------
3363
3364   {
3365     ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
3366     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3367     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3368     &level.auto_count_gems,
3369     NULL, NULL,
3370     "Automatically count gems needed",  "Set counter to number of gems"
3371   },
3372   {
3373     ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
3374     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3375     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3376     &level.rate_time_over_score,
3377     NULL, NULL,
3378     "Rate time/steps used over score",  "Sort high scores by playing time/steps"
3379   },
3380   {
3381     ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
3382     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3383     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3384     &levelset_use_levelset_artwork,
3385     NULL, NULL,
3386     "Use current custom artwork",       "Use custom artwork of this level set"
3387   },
3388   {
3389     ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
3390     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3391     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3392     &levelset_copy_level_template,
3393     NULL, NULL,
3394     "Copy current level template",      "Copy level template of this level set"
3395   },
3396   {
3397     ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
3398     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3399     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3400     &random_placement_background_restricted,
3401     NULL, NULL,
3402     "Restrict random placement to:",    "Set random placement restriction"
3403   },
3404   {
3405     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
3406     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3407     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3408     &setup.editor.use_template_for_new_levels,
3409     "Template for new levels and CE/GE:", NULL,
3410     "Use template for new levels",      "Use template for level properties"
3411   },
3412   {
3413     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
3414     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3415     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3416     &level.use_custom_template,
3417     NULL, NULL,
3418     "Use template for custom elements", "Use template for custom properties"
3419   },
3420   {
3421     ED_CHECKBUTTON_ID_BD_INTERMISSION,
3422     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
3423     GADGET_ID_BD_INTERMISSION,          GADGET_ID_NONE,
3424     &level.bd_intermission,
3425     "Boulder Dash game engine settings:", NULL,
3426     "Intermission",                     "Level is an intermission level"
3427   },
3428   {
3429     ED_CHECKBUTTON_ID_BD_PAL_TIMING,
3430     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
3431     GADGET_ID_BD_PAL_TIMING,            GADGET_ID_NONE,
3432     &level.bd_pal_timing,
3433     NULL, NULL,
3434     "PAL timing",                       "Use slower timer (like PAL C64)"
3435   },
3436   {
3437     ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
3438     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3439     GADGET_ID_BD_LINE_SHIFTING_BORDERS, GADGET_ID_NONE,
3440     &level.bd_line_shifting_borders,
3441     "Compatibility settings:", NULL,
3442     "Line-shifting borders",            "Use line-shifting wrap-around"
3443   },
3444   {
3445     ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
3446     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3447     GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW, GADGET_ID_NONE,
3448     &level.bd_scan_first_and_last_row,
3449     NULL, NULL,
3450     "Scan first and last row",          "Also process top/bottom border rows"
3451   },
3452   {
3453     ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
3454     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3455     GADGET_ID_BD_SHORT_EXPLOSIONS,      GADGET_ID_NONE,
3456     &level.bd_short_explosions,
3457     NULL, NULL,
3458     "Short explosions",                 "Use four game cycles for explosions"
3459   },
3460   {
3461     ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
3462     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(9),
3463     GADGET_ID_BD_GRAVITY_AFFECTS_ALL,   GADGET_ID_NONE,
3464     &level.bd_gravity_affects_all,
3465     NULL, NULL,
3466     "Gravity change affects everything", "Gravity affects all falling objects"
3467   },
3468
3469   // ---------- element settings: configure (various elements) ----------------
3470
3471   {
3472     ED_CHECKBUTTON_ID_STICK_ELEMENT,
3473     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3474     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3475     &stick_element_properties_window,
3476     NULL, NULL,
3477     "Stick this screen to edit content","Stick this screen to edit content"
3478   },
3479   {
3480     ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
3481     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3482     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3483     &level.em_slippery_gems,
3484     NULL, NULL,
3485     "Slip down from certain flat walls","Use EM/DC style slipping behaviour"
3486   },
3487   {
3488     ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
3489     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3490     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3491     &level.em_explodes_by_fire,
3492     NULL, NULL,
3493     "Explodes with chain reaction",     "Use R'n'D style explosion behaviour"
3494   },
3495   {
3496     ED_CHECKBUTTON_ID_USE_SPRING_BUG,
3497     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3498     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3499     &level.use_spring_bug,
3500     NULL, NULL,
3501     "Use spring pushing bug",           "Use odd spring pushing behaviour"
3502   },
3503   {
3504     ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
3505     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3506     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3507     &level.use_time_orb_bug,
3508     NULL, NULL,
3509     "Use time orb bug",                 "Use odd time orb behaviour"
3510   },
3511   {
3512     ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
3513     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3514     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3515     &level.use_life_bugs,
3516     NULL, NULL,
3517     "Use buggy element behaviour",      "Use odd (historic) element behaviour"
3518   },
3519   {
3520     ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
3521     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3522     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3523     &level.ball_random,
3524     NULL, NULL,
3525     "Create single random element",     "Only create one element from content"
3526   },
3527   {
3528     ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
3529     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3530     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3531     &level.ball_active_initial,
3532     NULL, NULL,
3533     "Magic ball initially activated",   "Activate magic ball after level start"
3534   },
3535   {
3536     ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
3537     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3538     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3539     &level.grow_into_diggable,
3540     NULL, NULL,
3541     "Can grow into anything diggable",  "Grow into more than just sand"
3542   },
3543   {
3544     ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
3545     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3546     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3547     &level.sb_fields_needed,
3548     NULL, NULL,
3549     "All fields need to be filled",     "Require all SB fields to be solved"
3550   },
3551   {
3552     ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
3553     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3554     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3555     &level.sb_objects_needed,
3556     NULL, NULL,
3557     "All objects need to be placed",    "Require all SB objects to be solved"
3558   },
3559   {
3560     ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
3561     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3562     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3563     &level.auto_exit_sokoban,
3564     NULL, NULL,
3565     "Exit level if all tasks solved",   "Automatically finish Sokoban levels"
3566   },
3567   {
3568     ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
3569     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3570     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3571     &level.solved_by_one_player,
3572     NULL, NULL,
3573     "Only one player must enter exit",  "Level solved by first player in exit"
3574   },
3575   {
3576     ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
3577     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3578     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3579     &level.finish_dig_collect,
3580     NULL, NULL,
3581     "CE action on finished dig/collect", "Only finished dig/collect triggers CE"
3582   },
3583   {
3584     ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
3585     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3586     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3587     &level.keep_walkable_ce,
3588     NULL, NULL,
3589     "Keep walkable CE changed to player", "Keep CE changing to player if walkable"
3590   },
3591   {
3592     ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
3593     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3594     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3595     &level.continuous_snapping,
3596     NULL, NULL,
3597     "Continuous snapping",              "Use snapping without releasing key"
3598   },
3599   {
3600     ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
3601     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3602     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3603     &level.block_snap_field,
3604     NULL, NULL,
3605     "Block snapped field when snapping", "Use snapping delay to show animation"
3606   },
3607   {
3608     ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
3609     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3610     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3611     &level.block_last_field,
3612     NULL, NULL,
3613     "Block last field when moving",     "Player blocks last field when moving"
3614   },
3615   {
3616     ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
3617     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3618     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3619     &level.sp_block_last_field,
3620     NULL, NULL,
3621     "Block last field when moving",     "Player blocks last field when moving"
3622   },
3623   {
3624     ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
3625     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3626     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3627     &level.instant_relocation,
3628     NULL, NULL,
3629     "No scrolling when relocating",     "Player gets relocated without delay"
3630   },
3631   {
3632     ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
3633     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3634     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3635     &level.shifted_relocation,
3636     NULL, NULL,
3637     "No centering when relocating",     "Level not centered after relocation"
3638   },
3639   {
3640     ED_CHECKBUTTON_ID_LAZY_RELOCATION,
3641     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3642     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3643     &level.lazy_relocation,
3644     NULL, NULL,
3645     "Only redraw off-screen relocation","No redraw if relocation target visible"
3646   },
3647   {
3648     ED_CHECKBUTTON_ID_USE_START_ELEMENT,
3649     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3650     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3651     &level.use_start_element[0],
3652     NULL, NULL,
3653     "Use level start element:",        "Start level at this element's position"
3654   },
3655   {
3656     ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
3657     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3658     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3659     &level.use_artwork_element[0],
3660     NULL, NULL,
3661     "Use artwork from element:",        "Use player artwork from other element"
3662   },
3663   {
3664     ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
3665     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3666     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3667     &level.use_explosion_element[0],
3668     NULL, NULL,
3669     "Use explosion from element:",      "Use explosion properties from element"
3670   },
3671   {
3672     ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
3673     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3674     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3675     &level.initial_player_gravity[0],
3676     NULL, NULL,
3677     "Use initial gravity",              "Set initial player gravity"
3678   },
3679   {
3680     ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
3681     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3682     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3683     &level.use_initial_inventory[0],
3684     NULL, NULL,
3685     "Use initial inventory:",           "Use collected elements on level start"
3686   },
3687   {
3688     ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
3689     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3690     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3691     &level.can_pass_to_walkable,
3692     NULL, NULL,
3693     "Can pass to walkable element",     "Player can pass to empty or walkable"
3694   },
3695   {
3696     ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
3697     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3698     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3699     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3700     NULL, NULL,
3701     "Can fall into acid (with gravity)","Player can fall into acid pool"
3702   },
3703   {
3704     ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
3705     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3706     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3707     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3708     NULL, NULL,
3709     "Can move into acid",               "Element can move into acid pool"
3710   },
3711   {
3712     ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
3713     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3714     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3715     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3716     NULL, NULL,
3717     "Deadly when colliding with",       "Element is deadly when hitting player"
3718   },
3719   {
3720     ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
3721     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3722     GADGET_ID_BD_DIAGONAL_MOVEMENTS,    GADGET_ID_NONE,
3723     &level.bd_diagonal_movements,
3724     NULL, NULL,
3725     "Can move diagonally",              "Player can move diagonally"
3726   },
3727   {
3728     ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
3729     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3730     GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE, GADGET_ID_NONE,
3731     &level.bd_topmost_player_active,
3732     NULL, NULL,
3733     "Topmost player is active",         "Use first player found on playfield"
3734   },
3735   {
3736     ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
3737     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3738     GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET, GADGET_ID_NONE,
3739     &level.bd_push_mega_rock_with_sweet,
3740     NULL, NULL,
3741     "Mega rocks pushable with sweet",   "Push mega rocks after eating sweet"
3742   },
3743   {
3744     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
3745     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3746     GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING, GADGET_ID_NONE,
3747     &level.bd_magic_wall_wait_hatching,
3748     NULL, NULL,
3749     "Wait for player's birth",          "Timer start waits for player's birth"
3750   },
3751   {
3752     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
3753     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3754     GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA, GADGET_ID_NONE,
3755     &level.bd_magic_wall_stops_amoeba,
3756     NULL, NULL,
3757     "Turn amoeba to diamonds",          "Activation changes amoeba to diamonds"
3758   },
3759   {
3760     ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
3761     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3762     GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING, GADGET_ID_NONE,
3763     &level.bd_amoeba_wait_for_hatching,
3764     NULL, NULL,
3765     "Wait for player's birth",          "Timer start waits for player's birth"
3766   },
3767   {
3768     ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
3769     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3770     GADGET_ID_BD_AMOEBA_START_IMMEDIATELY, GADGET_ID_NONE,
3771     &level.bd_amoeba_start_immediately,
3772     NULL, NULL,
3773     "Start growing immediately",        "Start slow growth time immediately"
3774   },
3775   {
3776     ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
3777     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3778     GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA, GADGET_ID_NONE,
3779     &level.bd_amoeba_2_explode_by_amoeba,
3780     NULL, NULL,
3781     "Explodes if touched by amoeba",    "Amoeba 2 explodes if touched by amoeba"
3782   },
3783   {
3784     ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
3785     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3786     GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS, GADGET_ID_NONE,
3787     &level.bd_voodoo_collects_diamonds,
3788     NULL, NULL,
3789     "Can collect diamonds",             "Can collect diamonds for the player"
3790   },
3791   {
3792     ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
3793     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3794     GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER, GADGET_ID_NONE,
3795     &level.bd_voodoo_hurt_kills_player,
3796     NULL, NULL,
3797     "Player is killed if hurt",         "If hurt in any way, player is killed"
3798   },
3799   {
3800     ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
3801     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3802     GADGET_ID_BD_VOODOO_DIES_BY_ROCK,   GADGET_ID_NONE,
3803     &level.bd_voodoo_dies_by_rock,
3804     NULL, NULL,
3805     "Killed by falling rock",           "Can be killed by a falling rock"
3806   },
3807   {
3808     ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
3809     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3810     GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION, GADGET_ID_NONE,
3811     &level.bd_voodoo_vanish_by_explosion,
3812     NULL, NULL,
3813     "Disappears in explosions",         "Can be destroyed by explosions"
3814   },
3815   {
3816     ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE,
3817     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3818     GADGET_ID_BD_SLIME_IS_PREDICTABLE, GADGET_ID_NONE,
3819     &level.bd_slime_is_predictable,
3820     NULL, NULL,
3821     "Slime is predictable",             "Use predictable random numbers"
3822   },
3823   {
3824     ED_CHECKBUTTON_ID_BD_CHANGE_EXPANDING_WALL,
3825     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3826     GADGET_ID_BD_CHANGE_EXPANDING_WALL, GADGET_ID_NONE,
3827     &level.bd_change_expanding_wall,
3828     NULL, NULL,
3829     "Change direction",                 "Switch horizontal/vertical direction"
3830   },
3831   {
3832     ED_CHECKBUTTON_ID_BD_REPLICATORS_ACTIVE,
3833     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3834     GADGET_ID_BD_REPLICATORS_ACTIVE,    GADGET_ID_NONE,
3835     &level.bd_replicators_active,
3836     NULL, NULL,
3837     "Active at start",                  "Replicators start in active state"
3838   },
3839   {
3840     ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_ACTIVE,
3841     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3842     GADGET_ID_BD_CONVEYOR_BELTS_ACTIVE, GADGET_ID_NONE,
3843     &level.bd_conveyor_belts_active,
3844     NULL, NULL,
3845     "Active at start",                  "Conveyor belts start in active state"
3846   },
3847   {
3848     ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_CHANGED,
3849     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3850     GADGET_ID_BD_CONVEYOR_BELTS_CHANGED, GADGET_ID_NONE,
3851     &level.bd_conveyor_belts_changed,
3852     NULL, NULL,
3853     "Change direction",                 "Switch conveyor belt direction"
3854   },
3855   {
3856     ED_CHECKBUTTON_ID_BD_WATER_CANNOT_FLOW_DOWN,
3857     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3858     GADGET_ID_BD_WATER_CANNOT_FLOW_DOWN, GADGET_ID_NONE,
3859     &level.bd_water_cannot_flow_down,
3860     NULL, NULL,
3861     "Does not flow downwards",          "Water can only flow up, left and right"
3862   },
3863   {
3864     ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
3865     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3866     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3867     &level.envelope[0].autowrap,
3868     NULL, NULL,
3869     "Auto-wrap",                        "Automatically wrap envelope text"
3870   },
3871   {
3872     ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
3873     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3874     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3875     &level.envelope[0].centered,
3876     NULL, " ",
3877     "Centered",                         "Automatically center envelope text"
3878   },
3879   {
3880     ED_CHECKBUTTON_ID_MM_LASER_RED,
3881     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3882     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3883     &level.mm_laser_red,
3884     "Choose color components for laser:", NULL,
3885     "Red",                              "Use red color components in laser"
3886   },
3887   {
3888     ED_CHECKBUTTON_ID_MM_LASER_GREEN,
3889     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3890     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3891     &level.mm_laser_green,
3892     NULL, NULL,
3893     "Green",                            "Use green color components in laser"
3894   },
3895   {
3896     ED_CHECKBUTTON_ID_MM_LASER_BLUE,
3897     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3898     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3899     &level.mm_laser_blue,
3900     NULL, NULL,
3901     "Blue",                             "Use blue color components in laser"
3902   },
3903   {
3904     ED_CHECKBUTTON_ID_DF_LASER_RED,
3905     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3906     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3907     &level.df_laser_red,
3908     "Choose color components for laser:", NULL,
3909     "Red",                              "Use red color components in laser"
3910   },
3911   {
3912     ED_CHECKBUTTON_ID_DF_LASER_GREEN,
3913     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3914     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3915     &level.df_laser_green,
3916     NULL, NULL,
3917     "Green",                            "Use green color components in laser"
3918   },
3919   {
3920     ED_CHECKBUTTON_ID_DF_LASER_BLUE,
3921     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3922     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3923     &level.df_laser_blue,
3924     NULL, NULL,
3925     "Blue",                             "Use blue color components in laser"
3926   },
3927   {
3928     ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
3929     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3930     GADGET_ID_ROTATE_MM_BALL_CONTENT,   GADGET_ID_NONE,
3931     &level.rotate_mm_ball_content,
3932     NULL, NULL,
3933     "Randomly rotate created content",  "Randomly rotate newly created content"
3934   },
3935   {
3936     ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
3937     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3938     GADGET_ID_EXPLODE_MM_BALL,          GADGET_ID_NONE,
3939     &level.explode_mm_ball,
3940     NULL, NULL,
3941     "Explode ball instead of melting",  "Use explosion to release ball content"
3942   },
3943
3944   // ---------- element settings: configure 1 (custom elements) ---------------
3945
3946   {
3947     ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
3948     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3949     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3950     &custom_element.use_gfx_element,
3951     NULL, NULL,
3952     "Use graphic of element:",          "Use existing element graphic"
3953   },
3954   {
3955     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
3956     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3957     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3958     &level.use_custom_template,
3959     NULL, NULL,
3960     "Use template",                     "Use template for custom properties"
3961   },
3962   {
3963     ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
3964     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3965     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3966     &custom_element_properties[EP_ACCESSIBLE],
3967     NULL, NULL,
3968     NULL,                               "Player can walk to or pass this field"
3969   },
3970   {
3971     ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
3972     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3973     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3974     &custom_element_properties[EP_GRAVITY_REACHABLE],
3975     NULL, NULL,
3976     "Reachable despite gravity",        "Player can walk/dig despite gravity"
3977   },
3978   {
3979     ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
3980     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3981     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3982     &custom_element.use_last_ce_value,
3983     NULL, NULL,
3984     "Use last CE value after change",   "Use last CE value after change"
3985   },
3986   {
3987     ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
3988     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3989     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3990     &custom_element_properties[EP_WALK_TO_OBJECT],
3991     NULL, NULL,
3992     NULL,                               "Player can dig/collect/push element"
3993   },
3994   {
3995     ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
3996     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3997     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3998     &custom_element_properties[EP_INDESTRUCTIBLE],
3999     NULL, NULL,
4000     "Indestructible",                   "Element is indestructible"
4001   },
4002
4003   // ---------- element settings: configure 2 (custom elements) ---------------
4004
4005   {
4006     ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
4007     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
4008     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
4009     &custom_element_properties[EP_CAN_MOVE],
4010     NULL, NULL,
4011     NULL,                               "Element can move with some pattern"
4012   },
4013   {
4014     ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
4015     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
4016     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
4017     &custom_element_properties[EP_CAN_FALL],
4018     NULL, NULL,
4019     "Can fall",                         "Element can fall down"
4020   },
4021   {
4022     ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
4023     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
4024     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
4025     &custom_element_properties[EP_CAN_SMASH],
4026     NULL, " ",
4027     NULL,                               "Element can smash other elements"
4028   },
4029   {
4030     ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
4031     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
4032     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
4033     &custom_element_properties[EP_SLIPPERY],
4034     NULL, NULL,
4035     NULL,                               "Other elements can fall down from it"
4036   },
4037   {
4038     ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
4039     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
4040     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
4041     &custom_element_properties[EP_DEADLY],
4042     NULL, NULL,
4043     NULL,                               "Element can kill the player"
4044   },
4045   {
4046     ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
4047     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
4048     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
4049     &custom_element_properties[EP_CAN_EXPLODE],
4050     NULL, NULL,
4051     NULL,                               "Element can explode"
4052   },
4053   {
4054     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
4055     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
4056     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
4057     &custom_element_properties[EP_EXPLODES_BY_FIRE],
4058     NULL, NULL,
4059     "By fire",                          "Element can explode by fire/explosion"
4060   },
4061   {
4062     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
4063     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
4064     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
4065     &custom_element_properties[EP_EXPLODES_SMASHED],
4066     NULL, " ",
4067     "Smashed",                          "Element can explode when smashed"
4068   },
4069   {
4070     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
4071     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
4072     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
4073     &custom_element_properties[EP_EXPLODES_IMPACT],
4074     NULL, " ",
4075     "Impact",                           "Element can explode on impact"
4076   },
4077
4078   // ---------- element settings: advanced (custom elements) ------------------
4079
4080   {
4081     ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
4082     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
4083     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
4084     &custom_element_change.can_change,
4085     NULL, NULL,
4086     "Element changes to:",              "Change element on specified condition"
4087   },
4088   {
4089     ED_CHECKBUTTON_ID_CHANGE_DELAY,
4090     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
4091     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
4092     &custom_element_change_events[CE_DELAY],
4093     NULL, NULL,
4094     NULL,                               "Element changes after delay"
4095   },
4096   {
4097     ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
4098     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
4099     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
4100     &custom_element_change_events[CE_BY_DIRECT_ACTION],
4101     NULL, NULL,
4102     NULL,                               "Element changes by direct action"
4103   },
4104   {
4105     ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
4106     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
4107     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
4108     &custom_element_change_events[CE_BY_OTHER_ACTION],
4109     NULL, NULL,
4110     NULL,                               "Element changes by other element"
4111   },
4112   {
4113     ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
4114     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
4115     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
4116     &custom_element_change.explode,
4117     NULL, NULL,
4118     "Explode instead of change",        "Element explodes instead of change"
4119   },
4120   {
4121     ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
4122     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
4123     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
4124     &custom_element_change.use_target_content,
4125     NULL, NULL,
4126     "Use extended change target:",      "Element changes to more elements"
4127   },
4128   {
4129     ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
4130     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
4131     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
4132     &custom_element_change.only_if_complete,
4133     NULL, NULL,
4134     "Replace all or nothing",           "Only replace when all can be changed"
4135   },
4136   {
4137     ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
4138     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
4139     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
4140     &custom_element_change.use_random_replace,
4141     NULL, NULL,
4142     NULL,                               "Use percentage for random replace"
4143   },
4144   {
4145     ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
4146     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
4147     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
4148     &custom_element_change.has_action,
4149     NULL, NULL,
4150     NULL,                               "Execute action on specified condition"
4151   },
4152 };
4153
4154 static struct
4155 {
4156   int gadget_type_id;
4157   int x, y;
4158   int xoffset, yoffset;
4159   int gadget_id;
4160   int gadget_id_align;
4161   int *value;
4162   int area_xsize, area_ysize;
4163   char *text_left, *text_right, *text_above, *text_below, *infotext;
4164 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
4165 {
4166   // ---------- level playfield content ---------------------------------------
4167
4168   {
4169     ED_DRAWING_ID_DRAWING_LEVEL,
4170     0,                                  0,
4171     0,                                  0,
4172     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
4173     NULL,
4174     -1, -1,     // these values are not constant, but can change at runtime
4175     NULL, NULL, NULL, NULL,             NULL
4176   },
4177
4178   // ---------- yam yam content -----------------------------------------------
4179
4180   {
4181     ED_DRAWING_ID_YAMYAM_CONTENT_0,
4182     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4183     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
4184     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
4185     &level.yamyam_content[0].e[0][0],   3, 3,
4186     NULL, NULL, NULL, "1",              NULL
4187   },
4188   {
4189     ED_DRAWING_ID_YAMYAM_CONTENT_1,
4190     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4191     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
4192     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
4193     &level.yamyam_content[1].e[0][0],   3, 3,
4194     NULL, NULL, NULL, "2",              NULL
4195   },
4196   {
4197     ED_DRAWING_ID_YAMYAM_CONTENT_2,
4198     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4199     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
4200     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
4201     &level.yamyam_content[2].e[0][0],   3, 3,
4202     NULL, NULL, NULL, "3",              NULL
4203   },
4204   {
4205     ED_DRAWING_ID_YAMYAM_CONTENT_3,
4206     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4207     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
4208     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
4209     &level.yamyam_content[3].e[0][0],   3, 3,
4210     NULL, NULL, NULL, "4",              NULL
4211   },
4212   {
4213     ED_DRAWING_ID_YAMYAM_CONTENT_4,
4214     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4215     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
4216     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
4217     &level.yamyam_content[4].e[0][0],   3, 3,
4218     NULL, NULL, NULL, "5",              NULL
4219   },
4220   {
4221     ED_DRAWING_ID_YAMYAM_CONTENT_5,
4222     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4223     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
4224     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
4225     &level.yamyam_content[5].e[0][0],   3, 3,
4226     NULL, NULL, NULL, "6",              NULL
4227   },
4228   {
4229     ED_DRAWING_ID_YAMYAM_CONTENT_6,
4230     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4231     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
4232     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
4233     &level.yamyam_content[6].e[0][0],   3, 3,
4234     NULL, NULL, NULL, "7",              NULL
4235   },
4236   {
4237     ED_DRAWING_ID_YAMYAM_CONTENT_7,
4238     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4239     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
4240     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
4241     &level.yamyam_content[7].e[0][0],   3, 3,
4242     NULL, NULL, NULL, "8",              NULL
4243   },
4244
4245   // ---------- magic ball content --------------------------------------------
4246
4247   {
4248     ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
4249     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4250     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
4251     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
4252     &level.ball_content[0].e[0][0],     3, 3,
4253     NULL, NULL, NULL, "1",              NULL
4254   },
4255   {
4256     ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
4257     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4258     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
4259     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
4260     &level.ball_content[1].e[0][0],     3, 3,
4261     NULL, NULL, NULL, "2",              NULL
4262   },
4263   {
4264     ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
4265     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4266     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
4267     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
4268     &level.ball_content[2].e[0][0],     3, 3,
4269     NULL, NULL, NULL, "3",              NULL
4270   },
4271   {
4272     ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
4273     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4274     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
4275     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
4276     &level.ball_content[3].e[0][0],     3, 3,
4277     NULL, NULL, NULL, "4",              NULL
4278   },
4279   {
4280     ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
4281     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4282     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
4283     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
4284     &level.ball_content[4].e[0][0],     3, 3,
4285     NULL, NULL, NULL, "5",              NULL
4286   },
4287   {
4288     ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
4289     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4290     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
4291     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
4292     &level.ball_content[5].e[0][0],     3, 3,
4293     NULL, NULL, NULL, "6",              NULL
4294   },
4295   {
4296     ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
4297     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4298     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
4299     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
4300     &level.ball_content[6].e[0][0],     3, 3,
4301     NULL, NULL, NULL, "7",              NULL
4302   },
4303   {
4304     ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
4305     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4306     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
4307     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
4308     &level.ball_content[7].e[0][0],     3, 3,
4309     NULL, NULL, NULL, "8",              NULL
4310   },
4311
4312   // ---------- android content -----------------------------------------------
4313
4314   {
4315     ED_DRAWING_ID_ANDROID_CONTENT,
4316     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
4317     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4318     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
4319     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
4320     NULL, NULL, "Elements:", NULL,      "Elements android can clone"
4321   },
4322
4323   // ---------- amoeba content ------------------------------------------------
4324
4325   {
4326     ED_DRAWING_ID_AMOEBA_CONTENT,
4327     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
4328     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4329     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
4330     &level.amoeba_content,              1, 1,
4331     "Content:", NULL, NULL, NULL,       "Amoeba content"
4332   },
4333
4334   // ---------- BD snap element -----------------------------------------------
4335
4336   {
4337     ED_DRAWING_ID_BD_SNAP_ELEMENT,
4338     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(5),
4339     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4340     GADGET_ID_BD_SNAP_ELEMENT,          GADGET_ID_NONE,
4341     &level.bd_snap_element,             1, 1,
4342     "Snap element:", NULL, NULL, NULL,  "Element created when snapping"
4343   },
4344
4345   // ---------- BD amoeba content ---------------------------------------------
4346
4347   {
4348     ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
4349     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4350     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4351     GADGET_ID_BD_AMOEBA_CONTENT_TOO_BIG, GADGET_ID_NONE,
4352     &level.bd_amoeba_content_too_big,   1, 1,
4353     "If too big, changes to:", NULL, NULL, NULL,        "BD amoeba content if too big"
4354   },
4355   {
4356     ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
4357     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4358     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4359     GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED, GADGET_ID_NONE,
4360     &level.bd_amoeba_content_enclosed,  1, 1,
4361     "If enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba content if enclosed"
4362   },
4363
4364   // ---------- BD amoeba 2 content -------------------------------------------
4365
4366   {
4367     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
4368     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4369     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4370     GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG, GADGET_ID_NONE,
4371     &level.bd_amoeba_2_content_too_big, 1, 1,
4372     "If too big, changes to:", NULL, NULL, NULL,        "BD amoeba 2 content if too big"
4373   },
4374   {
4375     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
4376     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4377     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4378     GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED, GADGET_ID_NONE,
4379     &level.bd_amoeba_2_content_enclosed,        1, 1,
4380     "If enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba 2 content if enclosed"
4381   },
4382   {
4383     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
4384     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(10),
4385     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4386     GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING, GADGET_ID_NONE,
4387     &level.bd_amoeba_2_content_exploding,       1, 1,
4388     "If exploding, changes to:", NULL, NULL, NULL,      "BD amoeba 2 content if exploding"
4389   },
4390   {
4391     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
4392     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(11),
4393     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4394     GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,   GADGET_ID_NONE,
4395     &level.bd_amoeba_2_content_looks_like,      1, 1,
4396     "Use graphic of element:", NULL, NULL, NULL,        "BD amoeba 2 looks like this element"
4397   },
4398   {
4399     ED_DRAWING_ID_BD_ACID_EATS_ELEMENT,
4400     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(1),
4401     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4402     GADGET_ID_BD_ACID_EATS_ELEMENT,     GADGET_ID_NONE,
4403     &level.bd_acid_eats_element,        1, 1,
4404     "Can eat:", NULL, NULL, NULL,               "Eats this element when spreading"
4405   },
4406   {
4407     ED_DRAWING_ID_BD_ACID_TURNS_TO_ELEMENT,
4408     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
4409     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4410     GADGET_ID_BD_ACID_TURNS_TO_ELEMENT, GADGET_ID_NONE,
4411     &level.bd_acid_turns_to_element,    1, 1,
4412     "Can leave behind:", NULL, NULL, NULL,      "Turns to this element after spreading"
4413   },
4414   {
4415     ED_DRAWING_ID_BD_BITER_EATS_ELEMENT,
4416     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4417     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4418     GADGET_ID_BD_BITER_EATS_ELEMENT,    GADGET_ID_NONE,
4419     &level.bd_biter_eats_element,       1, 1,
4420     "Can eat:", NULL, NULL, NULL,       "Eats this element when moving"
4421   },
4422   {
4423     ED_DRAWING_ID_BD_BLADDER_CONVERTS_BY_ELEMENT,
4424     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(1),
4425     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4426     GADGET_ID_BD_BLADDER_CONVERTS_BY_ELEMENT, GADGET_ID_NONE,
4427     &level.bd_bladder_converts_by_element,      1, 1,
4428     "Turns to clock by touching:", NULL, NULL, NULL,    "Turns to clock by touching element"
4429   },
4430
4431   // ---------- level start element -------------------------------------------
4432
4433   {
4434     ED_DRAWING_ID_START_ELEMENT,
4435     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
4436     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4437     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
4438     &level.start_element[0],            1, 1,
4439     NULL, NULL, NULL, NULL,             "Level start element"
4440   },
4441
4442   // ---------- player artwork element ----------------------------------------
4443
4444   {
4445     ED_DRAWING_ID_ARTWORK_ELEMENT,
4446     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
4447     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4448     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
4449     &level.artwork_element[0],          1, 1,
4450     NULL, NULL, NULL, NULL,             "Element for player artwork"
4451   },
4452
4453   // ---------- player explosion element --------------------------------------
4454
4455   {
4456     ED_DRAWING_ID_EXPLOSION_ELEMENT,
4457     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
4458     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4459     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
4460     &level.explosion_element[0],        1, 1,
4461     NULL, NULL, NULL, NULL,             "Element for player explosion"
4462   },
4463
4464   // ---------- player initial inventory --------------------------------------
4465
4466   {
4467     ED_DRAWING_ID_INVENTORY_CONTENT,
4468     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4469     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4470     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
4471     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
4472     NULL, NULL, NULL, NULL,             "Content for initial inventory"
4473   },
4474
4475   // ---------- gray ball content -----------------------------------------
4476
4477   {
4478     ED_DRAWING_ID_MM_BALL_CONTENT,
4479     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4480     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4481     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
4482     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
4483     "Content:", NULL, NULL, NULL,       "Content for gray ball"
4484   },
4485
4486   // ---------- element settings: configure 1 (custom elements) ---------------
4487
4488   // ---------- custom graphic ------------------------------------------------
4489
4490   {
4491     ED_DRAWING_ID_CUSTOM_GRAPHIC,
4492     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4493     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4494     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
4495     &custom_element.gfx_element_initial, 1, 1,
4496     NULL, NULL, NULL, NULL,             "Custom graphic element"
4497   },
4498
4499   // ---------- element settings: configure 2 (custom elements) ---------------
4500
4501   // ---------- custom content (when exploding) -------------------------------
4502
4503   {
4504     ED_DRAWING_ID_CUSTOM_CONTENT,
4505     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
4506     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4507     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
4508     &custom_element.content.e[0][0],    3, 3,
4509     "Content:", NULL, NULL, NULL,       NULL
4510   },
4511
4512   // ---------- custom enter and leave element (when moving) ------------------
4513
4514   {
4515     ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
4516     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
4517     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4518     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
4519     &custom_element.move_enter_element, 1, 1,
4520     "Can dig:", " ", NULL, NULL,        "Element that can be digged/collected"
4521   },
4522   {
4523     ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
4524     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
4525     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4526     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
4527     &custom_element.move_leave_element, 1, 1,
4528     NULL, NULL, NULL, NULL,             "Element that will be left behind"
4529   },
4530
4531   // ---------- element settings: advanced (custom elements) ------------------
4532
4533   // ---------- custom change target ------------------------------------------
4534
4535   {
4536     ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
4537     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4538     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4539     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
4540     &custom_element_change.target_element, 1, 1,
4541     NULL, "after/when:", NULL, NULL,    "New target element after change"
4542   },
4543
4544   // ---------- custom change content (extended change target) ----------------
4545
4546   {
4547     ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
4548     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
4549     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4550     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
4551     &custom_element_change.target_content.e[0][0], 3, 3,
4552     NULL, NULL, NULL, NULL,             "New extended elements after change"
4553   },
4554
4555   // ---------- custom change trigger (element causing change) ----------------
4556
4557   {
4558     ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
4559     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
4560     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4561     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
4562     &custom_element_change.initial_trigger_element, 1, 1,
4563     NULL, NULL, NULL, NULL,             "Other element triggering change"
4564   },
4565
4566   // ---------- custom change action (element used for action) ----------------
4567
4568   {
4569     ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
4570     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
4571     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4572     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
4573     &custom_element_change.action_element, 1, 1,
4574     NULL, NULL, NULL, NULL,             "Element used as action parameter"
4575   },
4576
4577   // ---------- group element content -----------------------------------------
4578
4579   {
4580     ED_DRAWING_ID_GROUP_CONTENT,
4581     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4582     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4583     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
4584     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
4585     "Content:", NULL, NULL, NULL,       NULL
4586   },
4587
4588   // ---------- random background (for random painting) -----------------------
4589
4590   {
4591     ED_DRAWING_ID_RANDOM_BACKGROUND,
4592     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
4593     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
4594     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
4595     &random_placement_background_element, 1, 1,
4596     NULL, NULL, NULL, NULL,             "Random placement background"
4597   },
4598 };
4599
4600
4601 // ----------------------------------------------------------------------------
4602 // some internally used variables
4603 // ----------------------------------------------------------------------------
4604
4605 // maximal size of level editor drawing area
4606 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
4607
4608 // actual size of level editor drawing area
4609 static int ed_fieldx, ed_fieldy;
4610
4611 // actual position of level editor drawing area in level playfield
4612 static int level_xpos = -1, level_ypos = -1;
4613
4614 // actual tile size used to display playfield drawing area
4615 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
4616 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
4617
4618 #define IN_ED_FIELD(x, y)       IN_FIELD(x, y, ed_fieldx, ed_fieldy)
4619
4620 // drawing elements on the three mouse buttons
4621 static int new_element1 = EL_WALL;
4622 static int new_element2 = EL_EMPTY;
4623 static int new_element3 = EL_SAND;
4624
4625 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
4626 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
4627                                 (button) == 2 ? new_element2 : \
4628                                 (button) == 3 ? new_element3 : EL_EMPTY)
4629
4630 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
4631
4632 static int use_permanent_palette = TRUE;
4633
4634 #define PX              (use_permanent_palette ? DX : SX)
4635 #define PY              (use_permanent_palette ? DY : SY)
4636 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
4637 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
4638
4639 // forward declaration for internal use
4640 static void CopyBrushToCursor(int, int);
4641 static void DeleteBrushFromCursor(void);
4642 static void ModifyEditorCounterValue(int, int);
4643 static void ModifyEditorCounterLimits(int, int, int);
4644 static void ModifyEditorSelectboxValue(int, int);
4645 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
4646 static void ModifyEditorDrawingArea(int, int, int);
4647 static void ModifyEditorElementList(void);
4648 static void AdjustElementListScrollbar(void);
4649 static void RedrawDrawingElements(void);
4650 static void DrawDrawingWindowExt(boolean);
4651 static void DrawDrawingWindow(void);
4652 static void DrawLevelConfigWindow(void);
4653 static void DrawPropertiesWindow(void);
4654 static void DrawPaletteWindow(void);
4655 static void UpdateCustomElementGraphicGadgets(void);
4656 static boolean checkPropertiesConfig(int);
4657 static void SetAutomaticNumberOfGemsNeeded(void);
4658 static void ClearEditorGadgetInfoText(void);
4659 static void CopyLevelToUndoBuffer(int);
4660 static void HandleDrawingAreas(struct GadgetInfo *);
4661 static void HandleCounterButtons(struct GadgetInfo *);
4662 static void HandleTextInputGadgets(struct GadgetInfo *);
4663 static void HandleTextAreaGadgets(struct GadgetInfo *);
4664 static void HandleSelectboxGadgets(struct GadgetInfo *);
4665 static void HandleTextbuttonGadgets(struct GadgetInfo *);
4666 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
4667 static void HandleRadiobuttons(struct GadgetInfo *);
4668 static void HandleCheckbuttons(struct GadgetInfo *);
4669 static void HandleControlButtons(struct GadgetInfo *);
4670 static void HandleDrawingAreaInfo(struct GadgetInfo *);
4671 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
4672 static boolean AskToCopyAndModifyLevelTemplate(void);
4673 static boolean getDrawModeHiRes(void);
4674 static int getTabulatorBarWidth(void);
4675 static int getTabulatorBarHeight(void);
4676 static Pixel getTabulatorBarColor(void);
4677 static int numHiresTiles(int);
4678
4679 static int num_editor_gadgets = 0;      // dynamically determined
4680
4681 static struct GadgetInfo **level_editor_gadget = NULL;
4682 static int *right_gadget_border = NULL;
4683
4684 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
4685 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
4686 static boolean draw_with_brush = FALSE;
4687 static int properties_element = 0;
4688
4689 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4690 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4691 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4692 static int undo_buffer_position = 0;
4693 static int undo_buffer_steps = 0;
4694 static int redo_buffer_steps = 0;
4695
4696 static int edit_mode;
4697 static int edit_mode_levelconfig;
4698 static int edit_mode_properties;
4699
4700 static int element_shift = 0;
4701
4702 static int editor_el_players[] =
4703 {
4704   EL_PLAYER_1,
4705   EL_PLAYER_2,
4706   EL_PLAYER_3,
4707   EL_PLAYER_4
4708 };
4709 static int *editor_el_players_ptr = editor_el_players;
4710 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
4711
4712 static int editor_hl_boulderdash[] =
4713 {
4714   EL_INTERNAL_CASCADE_BD_ACTIVE,
4715   EL_CHAR('B'),
4716   EL_CHAR('D'),
4717   EL_EMPTY,
4718 };
4719
4720 static int editor_el_boulderdash[] =
4721 {
4722   EL_EMPTY,
4723   EL_SAND,
4724   EL_BD_ROCK,
4725   EL_BD_DIAMOND,
4726
4727   EL_STEELWALL,
4728   EL_BD_WALL,
4729   EL_BD_EXPANDABLE_WALL,
4730   EL_BD_MAGIC_WALL,
4731
4732   EL_BD_AMOEBA,
4733   EL_BD_BUTTERFLY_UP,
4734   EL_BD_FIREFLY_UP,
4735   EL_EXIT_CLOSED,
4736
4737   EL_BD_BUTTERFLY_LEFT,
4738   EL_BD_FIREFLY_LEFT,
4739   EL_BD_BUTTERFLY_RIGHT,
4740   EL_BD_FIREFLY_RIGHT,
4741
4742   EL_EMPTY,
4743   EL_BD_BUTTERFLY_DOWN,
4744   EL_BD_FIREFLY_DOWN,
4745   EL_EXIT_OPEN,
4746 };
4747 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4748 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4749 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4750 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4751
4752 static int editor_hl_boulderdash_native[] =
4753 {
4754   EL_INTERNAL_CASCADE_BD_NATIVE_ACTIVE,
4755   EL_CHAR('B'),
4756   EL_CHAR('D'),
4757   EL_EMPTY,
4758 };
4759
4760 static int editor_el_boulderdash_native[] =
4761 {
4762   EL_EMPTY,
4763   EL_BD_SAND,
4764   EL_BD_ROCK,
4765   EL_BD_DIAMOND,
4766
4767   EL_BD_STEELWALL,
4768   EL_BD_WALL,
4769   EL_BD_SAND_2,
4770   EL_BD_MAGIC_WALL,
4771
4772   EL_BD_AMOEBA,
4773   EL_BD_BUTTERFLY_UP,
4774   EL_BD_FIREFLY_UP,
4775   EL_BD_EXIT_CLOSED,
4776
4777   EL_BD_BUTTERFLY_LEFT,
4778   EL_BD_FIREFLY_LEFT,
4779   EL_BD_BUTTERFLY_RIGHT,
4780   EL_BD_FIREFLY_RIGHT,
4781
4782   EL_BD_INBOX,
4783   EL_BD_BUTTERFLY_DOWN,
4784   EL_BD_FIREFLY_DOWN,
4785   EL_BD_EXIT_OPEN,
4786
4787   EL_BD_AMOEBA_2,
4788   EL_BD_BUTTERFLY_2_UP,
4789   EL_BD_FIREFLY_2_UP,
4790   EL_BD_SLIME,
4791
4792   EL_BD_BUTTERFLY_2_LEFT,
4793   EL_BD_FIREFLY_2_LEFT,
4794   EL_BD_BUTTERFLY_2_RIGHT,
4795   EL_BD_FIREFLY_2_RIGHT,
4796
4797   EL_BD_BOMB,
4798   EL_BD_BUTTERFLY_2_DOWN,
4799   EL_BD_FIREFLY_2_DOWN,
4800   EL_BD_FLYING_DIAMOND,
4801
4802   EL_BD_NITRO_PACK,
4803   EL_BD_DRAGONFLY_UP,
4804   EL_BD_STONEFLY_UP,
4805   EL_BD_DIAMOND_GLUED,
4806
4807   EL_BD_DRAGONFLY_LEFT,
4808   EL_BD_STONEFLY_LEFT,
4809   EL_BD_DRAGONFLY_RIGHT,
4810   EL_BD_STONEFLY_RIGHT,
4811
4812   EL_BD_NUT,
4813   EL_BD_DRAGONFLY_DOWN,
4814   EL_BD_STONEFLY_DOWN,
4815   EL_EMPTY,
4816
4817   EL_BD_BITER_SWITCH_1,
4818   EL_BD_BITER_UP,
4819   EL_BD_COW_UP,
4820   EL_EMPTY,
4821
4822   EL_BD_BITER_LEFT,
4823   EL_BD_COW_LEFT,
4824   EL_BD_BITER_RIGHT,
4825   EL_BD_COW_RIGHT,
4826
4827   EL_BD_VOODOO_DOLL,
4828   EL_BD_BITER_DOWN,
4829   EL_BD_COW_DOWN,
4830   EL_BD_GHOST,
4831
4832   EL_BD_SAND_GLUED,
4833   EL_BD_SAND_BALL,
4834   EL_BD_SAND_LOOSE,
4835   EL_BD_WALL_NON_SLOPED,
4836
4837   EL_BD_SAND_SLOPED_UP_LEFT,
4838   EL_BD_SAND_SLOPED_UP_RIGHT,
4839   EL_BD_WALL_SLOPED_UP_LEFT,
4840   EL_BD_WALL_SLOPED_UP_RIGHT,
4841
4842   EL_BD_SAND_SLOPED_DOWN_LEFT,
4843   EL_BD_SAND_SLOPED_DOWN_RIGHT,
4844   EL_BD_WALL_SLOPED_DOWN_LEFT,
4845   EL_BD_WALL_SLOPED_DOWN_RIGHT,
4846
4847   EL_BD_FLYING_ROCK,
4848   EL_BD_ROCK_GLUED,
4849   EL_BD_STEELWALL_SLOPED_UP_LEFT,
4850   EL_BD_STEELWALL_SLOPED_UP_RIGHT,
4851
4852   EL_BD_WAITING_ROCK,
4853   EL_BD_CHASING_ROCK,
4854   EL_BD_STEELWALL_SLOPED_DOWN_LEFT,
4855   EL_BD_STEELWALL_SLOPED_DOWN_RIGHT,
4856
4857   EL_BD_MEGA_ROCK,
4858   EL_BD_SWEET,
4859   EL_BD_INVISIBLE_EXIT_CLOSED,
4860   EL_BD_INVISIBLE_EXIT_OPEN,
4861
4862   EL_BD_STEELWALL_EXPLODABLE,
4863   EL_BD_STEELWALL_DIGGABLE,
4864   EL_BD_WALL_DIGGABLE,
4865   EL_BD_FALLING_WALL,
4866
4867   EL_BD_EXPANDABLE_WALL_HORIZONTAL,
4868   EL_BD_EXPANDABLE_WALL_VERTICAL,
4869   EL_BD_EXPANDABLE_WALL_ANY,
4870   EL_BD_EXPANDABLE_WALL_SWITCH_HORIZONTAL,
4871
4872   EL_BD_EXPANDABLE_STEELWALL_HORIZONTAL,
4873   EL_BD_EXPANDABLE_STEELWALL_VERTICAL,
4874   EL_BD_EXPANDABLE_STEELWALL_ANY,
4875   EL_BD_CREATURE_SWITCH,
4876
4877   EL_BD_BLADDER,
4878   EL_BD_BLADDER_SPENDER,
4879   EL_BD_REPLICATOR,
4880   EL_BD_REPLICATOR_SWITCH,
4881
4882   EL_BD_CONVEYOR_LEFT,
4883   EL_BD_CONVEYOR_RIGHT,
4884   EL_BD_CONVEYOR_SWITCH,
4885   EL_BD_CONVEYOR_DIR_SWITCH_NORMAL,
4886
4887   EL_BD_CLOCK,
4888   EL_BD_TIME_PENALTY,
4889   EL_BD_GRAVESTONE,
4890   EL_BD_SKELETON,
4891
4892   EL_BD_WATER,
4893   EL_BD_ACID,
4894   EL_BD_LAVA,
4895   EL_BD_BOX,
4896
4897   EL_BD_GATE_1,
4898   EL_BD_GATE_2,
4899   EL_BD_GATE_3,
4900   EL_BD_TRAPPED_DIAMOND,
4901
4902   EL_BD_KEY_1,
4903   EL_BD_KEY_2,
4904   EL_BD_KEY_3,
4905   EL_BD_DIAMOND_KEY,
4906
4907   EL_BD_WALL_KEY_1,
4908   EL_BD_WALL_KEY_2,
4909   EL_BD_WALL_KEY_3,
4910   EL_BD_WALL_DIAMOND,
4911
4912   EL_BD_GRAVITY_SWITCH,
4913   EL_BD_PNEUMATIC_HAMMER,
4914   EL_BD_TELEPORTER,
4915   EL_BD_POT,
4916
4917   EL_BD_PLAYER,
4918   EL_BD_PLAYER_WITH_BOMB,
4919   EL_BD_PLAYER_GLUED,
4920   EL_BD_PLAYER_STIRRING,
4921 };
4922 static int *editor_hl_boulderdash_native_ptr = editor_hl_boulderdash_native;
4923 static int *editor_el_boulderdash_native_ptr = editor_el_boulderdash_native;
4924 static int num_editor_hl_boulderdash_native = ARRAY_SIZE(editor_hl_boulderdash_native);
4925 static int num_editor_el_boulderdash_native = ARRAY_SIZE(editor_el_boulderdash_native);
4926
4927 static int editor_hl_boulderdash_effects[] =
4928 {
4929   EL_INTERNAL_CASCADE_BD_EFFECTS_ACTIVE,
4930   EL_CHAR('B'),
4931   EL_CHAR('D'),
4932   EL_CHAR('E'),
4933 };
4934
4935 static int editor_el_boulderdash_effects[] =
4936 {
4937   EL_BD_DIAMOND_FALLING,
4938   EL_BD_ROCK_FALLING,
4939   EL_BD_MEGA_ROCK_FALLING,
4940   EL_BD_FLYING_DIAMOND_FLYING,
4941
4942   EL_BD_FLYING_ROCK_FLYING,
4943   EL_BD_FALLING_WALL_FALLING,
4944   EL_BD_NITRO_PACK_FALLING,
4945   EL_BD_NUT_FALLING,
4946
4947   EL_BD_PLAYER_GROWING_1,
4948   EL_BD_PLAYER_GROWING_2,
4949   EL_BD_PLAYER_GROWING_3,
4950   EL_BD_PLAYER,
4951
4952   EL_BD_PLAYER_WITH_BOMB,
4953   EL_BD_PLAYER_STIRRING,
4954   EL_BD_EXIT_OPEN,
4955   EL_BD_INVISIBLE_EXIT_OPEN,
4956
4957   EL_BD_BLADDER_1,
4958   EL_BD_BLADDER_2,
4959   EL_BD_BLADDER_3,
4960   EL_BD_BLADDER_4,
4961
4962   EL_BD_BLADDER_5,
4963   EL_BD_BLADDER_6,
4964   EL_BD_BLADDER_7,
4965   EL_BD_BLADDER_8,
4966
4967   EL_BD_SAND_2,
4968   EL_BD_COW_ENCLOSED_1,
4969   EL_BD_COW_ENCLOSED_2,
4970   EL_BD_COW_ENCLOSED_3,
4971
4972   EL_BD_COW_ENCLOSED_4,
4973   EL_BD_COW_ENCLOSED_5,
4974   EL_BD_COW_ENCLOSED_6,
4975   EL_BD_COW_ENCLOSED_7,
4976
4977   EL_BD_WATER_1,
4978   EL_BD_WATER_2,
4979   EL_BD_WATER_3,
4980   EL_BD_WATER_4,
4981
4982   EL_BD_WATER_5,
4983   EL_BD_WATER_6,
4984   EL_BD_WATER_7,
4985   EL_BD_WATER_8,
4986
4987   EL_BD_WATER_9,
4988   EL_BD_WATER_10,
4989   EL_BD_WATER_11,
4990   EL_BD_WATER_12,
4991
4992   EL_BD_WATER_13,
4993   EL_BD_WATER_14,
4994   EL_BD_WATER_15,
4995   EL_BD_WATER_16,
4996
4997   EL_BD_BOMB_TICKING_1,
4998   EL_BD_BOMB_TICKING_2,
4999   EL_BD_BOMB_TICKING_3,
5000   EL_BD_BOMB_TICKING_4,
5001
5002   EL_BD_BOMB_TICKING_5,
5003   EL_BD_BOMB_TICKING_6,
5004   EL_BD_BOMB_TICKING_7,
5005   EL_EMPTY,
5006
5007   EL_BD_BOMB_EXPLODING_1,
5008   EL_BD_BOMB_EXPLODING_2,
5009   EL_BD_BOMB_EXPLODING_3,
5010   EL_BD_BOMB_EXPLODING_4,
5011
5012   EL_BD_NUT_BREAKING_1,
5013   EL_BD_NUT_BREAKING_2,
5014   EL_BD_NUT_BREAKING_3,
5015   EL_BD_NUT_BREAKING_4,
5016
5017   EL_BD_EXPLODING_1,
5018   EL_BD_EXPLODING_2,
5019   EL_BD_EXPLODING_3,
5020   EL_BD_EXPLODING_4,
5021
5022   EL_BD_EXPLODING_5,
5023   EL_BD_TIME_PENALTY,
5024   EL_BD_DIAMOND_GROWING_1,
5025   EL_BD_DIAMOND_GROWING_2,
5026
5027   EL_BD_DIAMOND_GROWING_3,
5028   EL_BD_DIAMOND_GROWING_4,
5029   EL_BD_DIAMOND_GROWING_5,
5030   EL_BD_NITRO_PACK_EXPLODING,
5031
5032   EL_BD_NITRO_PACK_EXPLODING_1,
5033   EL_BD_NITRO_PACK_EXPLODING_2,
5034   EL_BD_NITRO_PACK_EXPLODING_3,
5035   EL_BD_NITRO_PACK_EXPLODING_4,
5036
5037   EL_BD_ROCK_GROWING_1,
5038   EL_BD_ROCK_GROWING_2,
5039   EL_BD_ROCK_GROWING_3,
5040   EL_BD_ROCK_GROWING_4,
5041
5042   EL_BD_STEELWALL_GROWING_1,
5043   EL_BD_STEELWALL_GROWING_2,
5044   EL_BD_STEELWALL_GROWING_3,
5045   EL_BD_STEELWALL_GROWING_4,
5046
5047   EL_BD_CLOCK_GROWING_1,
5048   EL_BD_CLOCK_GROWING_2,
5049   EL_BD_CLOCK_GROWING_3,
5050   EL_BD_CLOCK_GROWING_4,
5051
5052   EL_BD_GHOST_EXPLODING_1,
5053   EL_BD_GHOST_EXPLODING_2,
5054   EL_BD_GHOST_EXPLODING_3,
5055   EL_BD_GHOST_EXPLODING_4,
5056 };
5057 static int *editor_hl_boulderdash_effects_ptr = editor_hl_boulderdash_effects;
5058 static int *editor_el_boulderdash_effects_ptr = editor_el_boulderdash_effects;
5059 static int num_editor_hl_boulderdash_effects = ARRAY_SIZE(editor_hl_boulderdash_effects);
5060 static int num_editor_el_boulderdash_effects = ARRAY_SIZE(editor_el_boulderdash_effects);
5061
5062 static int editor_hl_emerald_mine[] =
5063 {
5064   EL_INTERNAL_CASCADE_EM_ACTIVE,
5065   EL_CHAR('E'),
5066   EL_CHAR('M'),
5067   EL_EMPTY,
5068 };
5069
5070 static int editor_el_emerald_mine[] =
5071 {
5072   EL_SAND,
5073   EL_ROCK,
5074   EL_QUICKSAND_EMPTY,
5075   EL_QUICKSAND_FULL,
5076
5077   EL_STEELWALL,
5078   EL_WALL,
5079   EL_WALL_SLIPPERY,
5080   EL_MAGIC_WALL,
5081
5082   EL_EMERALD,
5083   EL_DIAMOND,
5084   EL_NUT,
5085   EL_BOMB,
5086
5087   EL_EM_DYNAMITE,
5088   EL_EM_DYNAMITE_ACTIVE,
5089   EL_EM_EXIT_CLOSED,
5090   EL_EM_EXIT_OPEN,
5091
5092   EL_YAMYAM_UP,
5093   EL_BUG_UP,
5094   EL_SPACESHIP_UP,
5095   EL_ROBOT,
5096
5097   EL_BUG_LEFT,
5098   EL_SPACESHIP_LEFT,
5099   EL_BUG_RIGHT,
5100   EL_SPACESHIP_RIGHT,
5101
5102   EL_ROBOT_WHEEL,
5103   EL_BUG_DOWN,
5104   EL_SPACESHIP_DOWN,
5105   EL_INVISIBLE_WALL,
5106
5107   EL_ACID_POOL_TOPLEFT,
5108   EL_ACID,
5109   EL_ACID_POOL_TOPRIGHT,
5110   EL_AMOEBA_DROP,
5111
5112   EL_ACID_POOL_BOTTOMLEFT,
5113   EL_ACID_POOL_BOTTOM,
5114   EL_ACID_POOL_BOTTOMRIGHT,
5115   EL_AMOEBA_WET,
5116
5117   EL_EM_KEY_1,
5118   EL_EM_KEY_2,
5119   EL_EM_KEY_3,
5120   EL_EM_KEY_4,
5121
5122   EL_EM_GATE_1,
5123   EL_EM_GATE_2,
5124   EL_EM_GATE_3,
5125   EL_EM_GATE_4,
5126
5127   EL_EM_GATE_1_GRAY,
5128   EL_EM_GATE_2_GRAY,
5129   EL_EM_GATE_3_GRAY,
5130   EL_EM_GATE_4_GRAY,
5131 };
5132 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
5133 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
5134 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
5135 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
5136
5137 static int editor_hl_emerald_mine_club[] =
5138 {
5139   EL_INTERNAL_CASCADE_EMC_ACTIVE,
5140   EL_CHAR('E'),
5141   EL_CHAR('M'),
5142   EL_CHAR('C'),
5143 };
5144
5145 static int editor_el_emerald_mine_club[] =
5146 {
5147   EL_EMC_KEY_5,
5148   EL_EMC_KEY_6,
5149   EL_EMC_KEY_7,
5150   EL_EMC_KEY_8,
5151
5152   EL_EMC_GATE_5,
5153   EL_EMC_GATE_6,
5154   EL_EMC_GATE_7,
5155   EL_EMC_GATE_8,
5156
5157   EL_EMC_GATE_5_GRAY,
5158   EL_EMC_GATE_6_GRAY,
5159   EL_EMC_GATE_7_GRAY,
5160   EL_EMC_GATE_8_GRAY,
5161
5162   EL_EMC_STEELWALL_1,
5163   EL_EMC_STEELWALL_2,
5164   EL_EMC_STEELWALL_3,
5165   EL_EMC_STEELWALL_4,
5166
5167   EL_EMC_WALL_13,
5168   EL_EMC_WALL_14,
5169   EL_EMC_WALL_15,
5170   EL_EMC_WALL_16,
5171
5172   EL_EMC_WALL_SLIPPERY_1,
5173   EL_EMC_WALL_SLIPPERY_2,
5174   EL_EMC_WALL_SLIPPERY_3,
5175   EL_EMC_WALL_SLIPPERY_4,
5176
5177   EL_EMC_WALL_1,
5178   EL_EMC_WALL_2,
5179   EL_EMC_WALL_3,
5180   EL_EMC_WALL_4,
5181
5182   EL_EMC_WALL_5,
5183   EL_EMC_WALL_6,
5184   EL_EMC_WALL_7,
5185   EL_EMC_WALL_8,
5186
5187   EL_EMC_WALL_9,
5188   EL_EMC_WALL_10,
5189   EL_EMC_WALL_11,
5190   EL_EMC_WALL_12,
5191
5192   EL_EMC_GRASS,
5193   EL_EMC_FAKE_GRASS,
5194   EL_EMC_PLANT,
5195   EL_EMC_DRIPPER,
5196
5197   EL_EMC_MAGIC_BALL,
5198   EL_EMC_MAGIC_BALL_SWITCH,
5199   EL_EMC_LENSES,
5200   EL_EMC_MAGNIFIER,
5201
5202   EL_SPRING_LEFT,
5203   EL_SPRING,
5204   EL_SPRING_RIGHT,
5205   EL_EMC_SPRING_BUMPER,
5206
5207   EL_BALLOON,
5208   EL_YAMYAM_UP,
5209   EL_BALLOON_SWITCH_UP,
5210   EL_BALLOON_SWITCH_ANY,
5211
5212   EL_YAMYAM_LEFT,
5213   EL_BALLOON_SWITCH_LEFT,
5214   EL_YAMYAM_RIGHT,
5215   EL_BALLOON_SWITCH_RIGHT,
5216
5217   EL_EMC_ANDROID,
5218   EL_YAMYAM_DOWN,
5219   EL_BALLOON_SWITCH_DOWN,
5220   EL_BALLOON_SWITCH_NONE,
5221 };
5222 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
5223 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
5224 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
5225 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
5226
5227 static int editor_hl_rnd[] =
5228 {
5229   EL_INTERNAL_CASCADE_RND_ACTIVE,
5230   EL_CHAR('R'),
5231   EL_CHAR('N'),
5232   EL_CHAR('D'),
5233 };
5234
5235 static int editor_el_rnd[] =
5236 {
5237   EL_DYNAMITE,                  // RND
5238   EL_DYNAMITE_ACTIVE,           // RND
5239   EL_EMPTY,
5240   EL_EMPTY,
5241
5242   EL_KEY_1,
5243   EL_KEY_2,
5244   EL_KEY_3,
5245   EL_KEY_4,
5246
5247   EL_GATE_1,
5248   EL_GATE_2,
5249   EL_GATE_3,
5250   EL_GATE_4,
5251
5252   EL_GATE_1_GRAY,
5253   EL_GATE_2_GRAY,
5254   EL_GATE_3_GRAY,
5255   EL_GATE_4_GRAY,
5256
5257   EL_ARROW_LEFT,
5258   EL_ARROW_RIGHT,
5259   EL_ARROW_UP,
5260   EL_ARROW_DOWN,
5261
5262   EL_AMOEBA_DEAD,
5263   EL_AMOEBA_DRY,
5264   EL_AMOEBA_FULL,
5265   EL_GAME_OF_LIFE,
5266
5267   EL_EMERALD_YELLOW,
5268   EL_EMERALD_RED,
5269   EL_EMERALD_PURPLE,
5270   EL_BIOMAZE,
5271
5272   EL_WALL_EMERALD_YELLOW,
5273   EL_WALL_EMERALD_RED,
5274   EL_WALL_EMERALD_PURPLE,
5275   EL_WALL_BD_DIAMOND,
5276
5277   EL_SPEED_PILL,
5278   EL_PACMAN_UP,
5279   EL_TIME_ORB_FULL,
5280   EL_TIME_ORB_EMPTY,
5281
5282   EL_PACMAN_LEFT,
5283   EL_DARK_YAMYAM,
5284   EL_PACMAN_RIGHT,
5285   EL_YAMYAM,                    // RND
5286
5287   EL_BLACK_ORB,
5288   EL_PACMAN_DOWN,
5289   EL_LAMP,
5290   EL_LAMP_ACTIVE,
5291
5292   EL_DYNABOMB_INCREASE_NUMBER,
5293   EL_DYNABOMB_INCREASE_SIZE,
5294   EL_DYNABOMB_INCREASE_POWER,
5295   EL_STONEBLOCK,
5296
5297   EL_MOLE,
5298   EL_PENGUIN,
5299   EL_PIG,
5300   EL_DRAGON,
5301
5302   EL_BUG,
5303   EL_MOLE_UP,
5304   EL_BD_BUTTERFLY,
5305   EL_BD_FIREFLY,
5306
5307   EL_MOLE_LEFT,
5308   EL_SATELLITE,
5309   EL_MOLE_RIGHT,
5310   EL_PACMAN,
5311
5312   EL_SPACESHIP,
5313   EL_MOLE_DOWN,
5314   EL_INVISIBLE_STEELWALL,
5315   EL_INVISIBLE_WALL,
5316
5317   EL_EXPANDABLE_WALL,
5318   EL_EXPANDABLE_WALL_HORIZONTAL,
5319   EL_EXPANDABLE_WALL_VERTICAL,
5320   EL_EXPANDABLE_WALL_ANY,
5321 };
5322 static int *editor_hl_rnd_ptr = editor_hl_rnd;
5323 static int *editor_el_rnd_ptr = editor_el_rnd;
5324 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
5325 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
5326
5327 static int editor_hl_sokoban[] =
5328 {
5329   EL_INTERNAL_CASCADE_SB_ACTIVE,
5330   EL_CHAR('S'),
5331   EL_CHAR('B'),
5332   EL_EMPTY,
5333 };
5334
5335 static int editor_el_sokoban[] =
5336 {
5337   EL_SOKOBAN_OBJECT,
5338   EL_SOKOBAN_FIELD_EMPTY,
5339   EL_SOKOBAN_FIELD_FULL,
5340   EL_SOKOBAN_FIELD_PLAYER,
5341 };
5342 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
5343 static int *editor_el_sokoban_ptr = editor_el_sokoban;
5344 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
5345 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
5346
5347 static int editor_hl_supaplex[] =
5348 {
5349   EL_INTERNAL_CASCADE_SP_ACTIVE,
5350   EL_CHAR('S'),
5351   EL_CHAR('P'),
5352   EL_EMPTY,
5353 };
5354
5355 static int editor_el_supaplex[] =
5356 {
5357   EL_SP_MURPHY,
5358   EL_EMPTY,
5359   EL_SP_BASE,
5360   EL_SP_BUGGY_BASE,
5361
5362   EL_SP_INFOTRON,
5363   EL_SP_ZONK,
5364   EL_SP_SNIKSNAK,
5365   EL_SP_ELECTRON,
5366
5367   EL_SP_DISK_RED,
5368   EL_SP_DISK_ORANGE,
5369   EL_SP_DISK_YELLOW,
5370   EL_SP_TERMINAL,
5371
5372   EL_SP_EXIT_CLOSED,
5373   EL_SP_PORT_HORIZONTAL,
5374   EL_SP_PORT_VERTICAL,
5375   EL_SP_PORT_ANY,
5376
5377   EL_SP_PORT_LEFT,
5378   EL_SP_PORT_RIGHT,
5379   EL_SP_PORT_UP,
5380   EL_SP_PORT_DOWN,
5381
5382   EL_SP_GRAVITY_PORT_LEFT,
5383   EL_SP_GRAVITY_PORT_RIGHT,
5384   EL_SP_GRAVITY_PORT_UP,
5385   EL_SP_GRAVITY_PORT_DOWN,
5386
5387   EL_SP_GRAVITY_ON_PORT_LEFT,
5388   EL_SP_GRAVITY_ON_PORT_RIGHT,
5389   EL_SP_GRAVITY_ON_PORT_UP,
5390   EL_SP_GRAVITY_ON_PORT_DOWN,
5391
5392   EL_SP_GRAVITY_OFF_PORT_LEFT,
5393   EL_SP_GRAVITY_OFF_PORT_RIGHT,
5394   EL_SP_GRAVITY_OFF_PORT_UP,
5395   EL_SP_GRAVITY_OFF_PORT_DOWN,
5396
5397   EL_SP_HARDWARE_GRAY,
5398   EL_SP_HARDWARE_GREEN,
5399   EL_SP_HARDWARE_BLUE,
5400   EL_SP_HARDWARE_RED,
5401
5402   EL_SP_HARDWARE_BASE_1,
5403   EL_SP_HARDWARE_BASE_2,
5404   EL_SP_HARDWARE_BASE_3,
5405   EL_SP_HARDWARE_BASE_4,
5406
5407   EL_SP_HARDWARE_BASE_5,
5408   EL_SP_HARDWARE_BASE_6,
5409   EL_SP_HARDWARE_YELLOW,
5410   EL_SP_CHIP_TOP,
5411
5412   EL_SP_CHIP_SINGLE,
5413   EL_SP_CHIP_LEFT,
5414   EL_SP_CHIP_RIGHT,
5415   EL_SP_CHIP_BOTTOM,
5416 };
5417 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
5418 static int *editor_el_supaplex_ptr = editor_el_supaplex;
5419 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
5420 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
5421
5422 static int editor_hl_diamond_caves[] =
5423 {
5424   EL_INTERNAL_CASCADE_DC_ACTIVE,
5425   EL_CHAR('D'),
5426   EL_CHAR('C'),
5427   EL_CHAR('2'),
5428 };
5429
5430 static int editor_el_diamond_caves[] =
5431 {
5432   EL_EM_STEEL_EXIT_CLOSED,      // DC2
5433   EL_EM_STEEL_EXIT_OPEN,        // DC2
5434   EL_WALL_EMERALD,              // DC2
5435   EL_WALL_DIAMOND,              // DC2
5436
5437   EL_PEARL,
5438   EL_CRYSTAL,
5439   EL_WALL_PEARL,
5440   EL_WALL_CRYSTAL,
5441
5442   EL_CONVEYOR_BELT_1_LEFT,
5443   EL_CONVEYOR_BELT_1_MIDDLE,
5444   EL_CONVEYOR_BELT_1_RIGHT,
5445   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
5446
5447   EL_CONVEYOR_BELT_2_LEFT,
5448   EL_CONVEYOR_BELT_2_MIDDLE,
5449   EL_CONVEYOR_BELT_2_RIGHT,
5450   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
5451
5452   EL_CONVEYOR_BELT_3_LEFT,
5453   EL_CONVEYOR_BELT_3_MIDDLE,
5454   EL_CONVEYOR_BELT_3_RIGHT,
5455   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
5456
5457   EL_CONVEYOR_BELT_4_LEFT,
5458   EL_CONVEYOR_BELT_4_MIDDLE,
5459   EL_CONVEYOR_BELT_4_RIGHT,
5460   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
5461
5462   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
5463   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
5464   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
5465   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
5466
5467   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
5468   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
5469   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
5470   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
5471
5472   EL_TIMEGATE_CLOSED,
5473   EL_TIMEGATE_OPEN,
5474   EL_TIMEGATE_SWITCH,
5475   EL_DC_TIMEGATE_SWITCH,
5476
5477   EL_SWITCHGATE_CLOSED,
5478   EL_SWITCHGATE_OPEN,
5479   EL_SWITCHGATE_SWITCH_UP,
5480   EL_SWITCHGATE_SWITCH_DOWN,
5481
5482   EL_LIGHT_SWITCH,
5483   EL_LIGHT_SWITCH_ACTIVE,
5484   EL_DC_SWITCHGATE_SWITCH_UP,
5485   EL_DC_SWITCHGATE_SWITCH_DOWN,
5486
5487   EL_STEEL_EXIT_CLOSED,
5488   EL_STEEL_EXIT_OPEN,
5489   EL_STEELWALL_SLIPPERY,
5490   EL_INVISIBLE_SAND,
5491
5492   EL_QUICKSAND_FAST_EMPTY,
5493   EL_QUICKSAND_FAST_FULL,
5494   EL_LANDMINE,
5495   EL_DC_LANDMINE,
5496
5497   EL_SHIELD_NORMAL,
5498   EL_SHIELD_DEADLY,
5499   EL_EXTRA_TIME,
5500   EL_DC_MAGIC_WALL,
5501
5502   EL_ENVELOPE_1,
5503   EL_ENVELOPE_2,
5504   EL_ENVELOPE_3,
5505   EL_ENVELOPE_4,
5506
5507   EL_SIGN_RADIOACTIVITY,
5508   EL_SIGN_WHEELCHAIR,
5509   EL_SIGN_PARKING,
5510   EL_SIGN_NO_ENTRY,
5511
5512   EL_SIGN_GIVE_WAY,
5513   EL_SIGN_ENTRY_FORBIDDEN,
5514   EL_SIGN_EMERGENCY_EXIT,
5515   EL_SIGN_YIN_YANG,
5516
5517 #if 0
5518   EL_SIGN_SPERMS,
5519   EL_SIGN_BULLET,
5520   EL_SIGN_HEART,
5521   EL_SIGN_CROSS,
5522
5523   EL_SIGN_FRANKIE,
5524   EL_EMPTY,
5525   EL_EMPTY,
5526   EL_EMPTY,
5527
5528   EL_SPERMS,
5529   EL_BULLET,
5530   EL_HEART,
5531   EL_CROSS,
5532
5533   EL_FRANKIE,
5534   EL_EMPTY,
5535   EL_EMPTY,
5536   EL_EMPTY,
5537 #endif
5538
5539   EL_DC_STEELWALL_2_SINGLE,
5540   EL_DC_STEELWALL_2_TOP,
5541   EL_SIGN_EXCLAMATION,
5542   EL_SIGN_STOP,
5543
5544   EL_DC_STEELWALL_2_LEFT,
5545   EL_DC_STEELWALL_2_MIDDLE,
5546   EL_DC_STEELWALL_2_HORIZONTAL,
5547   EL_DC_STEELWALL_2_RIGHT,
5548
5549   EL_DC_STEELWALL_1_TOPLEFT,
5550   EL_DC_STEELWALL_2_VERTICAL,
5551   EL_DC_STEELWALL_1_TOPRIGHT,
5552   EL_DC_GATE_WHITE,
5553
5554   EL_DC_STEELWALL_1_VERTICAL,
5555   EL_DC_STEELWALL_2_BOTTOM,
5556   EL_DC_KEY_WHITE,
5557   EL_DC_GATE_WHITE_GRAY,
5558
5559   EL_DC_STEELWALL_1_BOTTOMLEFT,
5560   EL_DC_STEELWALL_1_HORIZONTAL,
5561   EL_DC_STEELWALL_1_BOTTOMRIGHT,
5562   EL_DC_GATE_FAKE_GRAY,
5563
5564   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
5565   EL_DC_STEELWALL_1_BOTTOM,
5566   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
5567   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
5568
5569   EL_DC_STEELWALL_1_RIGHT,
5570   EL_EMPTY,
5571   EL_DC_STEELWALL_1_LEFT,
5572   EL_EXPANDABLE_STEELWALL_VERTICAL,
5573
5574   EL_DC_STEELWALL_1_TOPRIGHT_2,
5575   EL_DC_STEELWALL_1_TOP,
5576   EL_DC_STEELWALL_1_TOPLEFT_2,
5577   EL_EXPANDABLE_STEELWALL_ANY,
5578 };
5579 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
5580 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
5581 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
5582 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
5583
5584 static int editor_hl_dx_boulderdash[] =
5585 {
5586   EL_INTERNAL_CASCADE_DX_ACTIVE,
5587   EL_CHAR('D'),
5588   EL_CHAR('X'),
5589   EL_EMPTY,
5590 };
5591
5592 static int editor_el_dx_boulderdash[] =
5593 {
5594   EL_EMPTY,
5595   EL_TUBE_RIGHT_DOWN,
5596   EL_TUBE_HORIZONTAL_DOWN,
5597   EL_TUBE_LEFT_DOWN,
5598
5599   EL_TUBE_HORIZONTAL,
5600   EL_TUBE_VERTICAL_RIGHT,
5601   EL_TUBE_ANY,
5602   EL_TUBE_VERTICAL_LEFT,
5603
5604   EL_TUBE_VERTICAL,
5605   EL_TUBE_RIGHT_UP,
5606   EL_TUBE_HORIZONTAL_UP,
5607   EL_TUBE_LEFT_UP,
5608
5609   EL_TRAP,
5610   EL_DX_SUPABOMB,
5611   EL_EMPTY,
5612   EL_EMPTY
5613 };
5614 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
5615 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
5616 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
5617 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
5618
5619 static int editor_hl_mirror_magic[] =
5620 {
5621   EL_INTERNAL_CASCADE_MM_ACTIVE,
5622   EL_CHAR('M'),
5623   EL_CHAR('M'),
5624   EL_EMPTY,
5625 };
5626
5627 static int editor_el_mirror_magic[] =
5628 {
5629   EL_MM_MCDUFFIN_RIGHT,
5630   EL_MM_MCDUFFIN_UP,
5631   EL_MM_MCDUFFIN_LEFT,
5632   EL_MM_MCDUFFIN_DOWN,
5633
5634   EL_MM_MIRROR_START,
5635   EL_MM_MIRROR_FIXED_START,
5636   EL_MM_POLARIZER_START,
5637   EL_MM_POLARIZER_CROSS_START,
5638
5639   EL_MM_TELEPORTER_RED_START,
5640   EL_MM_TELEPORTER_YELLOW_START,
5641   EL_MM_TELEPORTER_GREEN_START,
5642   EL_MM_TELEPORTER_BLUE_START,
5643
5644   EL_MM_PRISM,
5645   EL_MM_FUSE_ACTIVE,
5646   EL_MM_PACMAN_RIGHT,
5647   EL_MM_EXIT_CLOSED,
5648
5649   EL_MM_KETTLE,
5650   EL_MM_BOMB,
5651   EL_MM_KEY,
5652   EL_MM_FUEL_FULL,
5653
5654   EL_MM_LIGHTBULB,
5655   EL_MM_LIGHTBULB_ACTIVE,
5656   EL_MM_GRAY_BALL,
5657   EL_MM_LIGHTBALL,
5658
5659   EL_MM_STEEL_WALL,
5660   EL_MM_WOODEN_WALL,
5661   EL_MM_ICE_WALL,
5662   EL_MM_AMOEBA_WALL,
5663
5664   EL_MM_STEEL_LOCK,
5665   EL_MM_WOODEN_LOCK,
5666   EL_MM_STEEL_BLOCK,
5667   EL_MM_WOODEN_BLOCK,
5668
5669   EL_MM_STEEL_GRID_FIXED_1,
5670   EL_MM_STEEL_GRID_FIXED_2,
5671   EL_MM_STEEL_GRID_FIXED_3,
5672   EL_MM_STEEL_GRID_FIXED_4,
5673
5674   EL_MM_WOODEN_GRID_FIXED_1,
5675   EL_MM_WOODEN_GRID_FIXED_2,
5676   EL_MM_WOODEN_GRID_FIXED_3,
5677   EL_MM_WOODEN_GRID_FIXED_4,
5678
5679   EL_MM_ENVELOPE_1,
5680   EL_MM_ENVELOPE_2,
5681   EL_MM_ENVELOPE_3,
5682   EL_MM_ENVELOPE_4
5683 };
5684 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
5685 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
5686 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
5687 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
5688
5689 static int editor_hl_deflektor[] =
5690 {
5691   EL_INTERNAL_CASCADE_DF_ACTIVE,
5692   EL_CHAR('D'),
5693   EL_CHAR('F'),
5694   EL_EMPTY,
5695 };
5696
5697 static int editor_el_deflektor[] =
5698 {
5699   EL_DF_LASER_RIGHT,
5700   EL_DF_LASER_UP,
5701   EL_DF_LASER_LEFT,
5702   EL_DF_LASER_DOWN,
5703
5704   EL_DF_RECEIVER_RIGHT,
5705   EL_DF_RECEIVER_UP,
5706   EL_DF_RECEIVER_LEFT,
5707   EL_DF_RECEIVER_DOWN,
5708
5709   EL_DF_MIRROR_START,
5710   EL_DF_MIRROR_ROTATING_START,
5711   EL_DF_MIRROR_FIXED_START,
5712   EL_DF_CELL,
5713
5714   EL_DF_FIBRE_OPTIC_RED_1,
5715   EL_DF_FIBRE_OPTIC_YELLOW_1,
5716   EL_DF_FIBRE_OPTIC_GREEN_1,
5717   EL_DF_FIBRE_OPTIC_BLUE_1,
5718
5719   EL_DF_STEEL_GRID_FIXED_START,
5720   EL_DF_STEEL_GRID_ROTATING_START,
5721   EL_DF_WOODEN_GRID_FIXED_START,
5722   EL_DF_WOODEN_GRID_ROTATING_START,
5723
5724   EL_DF_STEEL_WALL,
5725   EL_DF_WOODEN_WALL,
5726   EL_DF_REFRACTOR,
5727   EL_DF_MINE,
5728
5729   EL_DF_SLOPE_1,
5730   EL_DF_SLOPE_2,
5731   EL_DF_SLOPE_3,
5732   EL_DF_SLOPE_4
5733 };
5734 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
5735 static int *editor_el_deflektor_ptr = editor_el_deflektor;
5736 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
5737 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
5738
5739 static int editor_hl_chars[] =
5740 {
5741   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
5742   EL_CHAR('T'),
5743   EL_CHAR('X'),
5744   EL_CHAR('T'),
5745 };
5746
5747 static int editor_el_chars[] =
5748 {
5749   EL_CHAR(' '),
5750   EL_CHAR('!'),
5751   EL_CHAR('"'),
5752   EL_CHAR('#'),
5753
5754   EL_CHAR('$'),
5755   EL_CHAR('%'),
5756   EL_CHAR('&'),
5757   EL_CHAR('\''),
5758
5759   EL_CHAR('('),
5760   EL_CHAR(')'),
5761   EL_CHAR('*'),
5762   EL_CHAR('+'),
5763
5764   EL_CHAR(','),
5765   EL_CHAR('-'),
5766   EL_CHAR('.'),
5767   EL_CHAR('/'),
5768
5769   EL_CHAR('0'),
5770   EL_CHAR('1'),
5771   EL_CHAR('2'),
5772   EL_CHAR('3'),
5773
5774   EL_CHAR('4'),
5775   EL_CHAR('5'),
5776   EL_CHAR('6'),
5777   EL_CHAR('7'),
5778
5779   EL_CHAR('8'),
5780   EL_CHAR('9'),
5781   EL_CHAR(':'),
5782   EL_CHAR(';'),
5783
5784   EL_CHAR('<'),
5785   EL_CHAR('='),
5786   EL_CHAR('>'),
5787   EL_CHAR('?'),
5788
5789   EL_CHAR('@'),
5790   EL_CHAR('A'),
5791   EL_CHAR('B'),
5792   EL_CHAR('C'),
5793
5794   EL_CHAR('D'),
5795   EL_CHAR('E'),
5796   EL_CHAR('F'),
5797   EL_CHAR('G'),
5798
5799   EL_CHAR('H'),
5800   EL_CHAR('I'),
5801   EL_CHAR('J'),
5802   EL_CHAR('K'),
5803
5804   EL_CHAR('L'),
5805   EL_CHAR('M'),
5806   EL_CHAR('N'),
5807   EL_CHAR('O'),
5808
5809   EL_CHAR('P'),
5810   EL_CHAR('Q'),
5811   EL_CHAR('R'),
5812   EL_CHAR('S'),
5813
5814   EL_CHAR('T'),
5815   EL_CHAR('U'),
5816   EL_CHAR('V'),
5817   EL_CHAR('W'),
5818
5819   EL_CHAR('X'),
5820   EL_CHAR('Y'),
5821   EL_CHAR('Z'),
5822   EL_CHAR('['),
5823
5824   EL_CHAR('\\'),
5825   EL_CHAR(']'),
5826   EL_CHAR('^'),
5827   EL_CHAR('_'),
5828
5829   EL_CHAR(CHAR_BYTE_COPYRIGHT),
5830   EL_CHAR(CHAR_BYTE_UMLAUT_A),
5831   EL_CHAR(CHAR_BYTE_UMLAUT_O),
5832   EL_CHAR(CHAR_BYTE_UMLAUT_U),
5833
5834   EL_CHAR(CHAR_BYTE_DEGREE),
5835   EL_CHAR(CHAR_BYTE_REGISTERED),
5836   EL_CHAR(FONT_ASCII_CURSOR),
5837   EL_CHAR(FONT_ASCII_BUTTON),
5838
5839   EL_CHAR(FONT_ASCII_UP),
5840   EL_CHAR(FONT_ASCII_DOWN),
5841   EL_CHAR(' '),
5842   EL_CHAR(' ')
5843 };
5844 static int *editor_hl_chars_ptr = editor_hl_chars;
5845 static int *editor_el_chars_ptr = editor_el_chars;
5846 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
5847 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
5848
5849 static int editor_hl_steel_chars[] =
5850 {
5851   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
5852   EL_STEEL_CHAR('T'),
5853   EL_STEEL_CHAR('X'),
5854   EL_STEEL_CHAR('T'),
5855 };
5856
5857 static int editor_el_steel_chars[] =
5858 {
5859   EL_STEEL_CHAR(' '),
5860   EL_STEEL_CHAR('!'),
5861   EL_STEEL_CHAR('"'),
5862   EL_STEEL_CHAR('#'),
5863
5864   EL_STEEL_CHAR('$'),
5865   EL_STEEL_CHAR('%'),
5866   EL_STEEL_CHAR('&'),
5867   EL_STEEL_CHAR('\''),
5868
5869   EL_STEEL_CHAR('('),
5870   EL_STEEL_CHAR(')'),
5871   EL_STEEL_CHAR('*'),
5872   EL_STEEL_CHAR('+'),
5873
5874   EL_STEEL_CHAR(','),
5875   EL_STEEL_CHAR('-'),
5876   EL_STEEL_CHAR('.'),
5877   EL_STEEL_CHAR('/'),
5878
5879   EL_STEEL_CHAR('0'),
5880   EL_STEEL_CHAR('1'),
5881   EL_STEEL_CHAR('2'),
5882   EL_STEEL_CHAR('3'),
5883
5884   EL_STEEL_CHAR('4'),
5885   EL_STEEL_CHAR('5'),
5886   EL_STEEL_CHAR('6'),
5887   EL_STEEL_CHAR('7'),
5888
5889   EL_STEEL_CHAR('8'),
5890   EL_STEEL_CHAR('9'),
5891   EL_STEEL_CHAR(':'),
5892   EL_STEEL_CHAR(';'),
5893
5894   EL_STEEL_CHAR('<'),
5895   EL_STEEL_CHAR('='),
5896   EL_STEEL_CHAR('>'),
5897   EL_STEEL_CHAR('?'),
5898
5899   EL_STEEL_CHAR('@'),
5900   EL_STEEL_CHAR('A'),
5901   EL_STEEL_CHAR('B'),
5902   EL_STEEL_CHAR('C'),
5903
5904   EL_STEEL_CHAR('D'),
5905   EL_STEEL_CHAR('E'),
5906   EL_STEEL_CHAR('F'),
5907   EL_STEEL_CHAR('G'),
5908
5909   EL_STEEL_CHAR('H'),
5910   EL_STEEL_CHAR('I'),
5911   EL_STEEL_CHAR('J'),
5912   EL_STEEL_CHAR('K'),
5913
5914   EL_STEEL_CHAR('L'),
5915   EL_STEEL_CHAR('M'),
5916   EL_STEEL_CHAR('N'),
5917   EL_STEEL_CHAR('O'),
5918
5919   EL_STEEL_CHAR('P'),
5920   EL_STEEL_CHAR('Q'),
5921   EL_STEEL_CHAR('R'),
5922   EL_STEEL_CHAR('S'),
5923
5924   EL_STEEL_CHAR('T'),
5925   EL_STEEL_CHAR('U'),
5926   EL_STEEL_CHAR('V'),
5927   EL_STEEL_CHAR('W'),
5928
5929   EL_STEEL_CHAR('X'),
5930   EL_STEEL_CHAR('Y'),
5931   EL_STEEL_CHAR('Z'),
5932   EL_STEEL_CHAR('['),
5933
5934   EL_STEEL_CHAR('\\'),
5935   EL_STEEL_CHAR(']'),
5936   EL_STEEL_CHAR('^'),
5937   EL_STEEL_CHAR('_'),
5938
5939   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
5940   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
5941   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
5942   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
5943
5944   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
5945   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
5946   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
5947   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
5948
5949   EL_STEEL_CHAR(FONT_ASCII_UP),
5950   EL_STEEL_CHAR(FONT_ASCII_DOWN),
5951   EL_STEEL_CHAR(' '),
5952   EL_STEEL_CHAR(' ')
5953 };
5954 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
5955 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
5956 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
5957 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
5958
5959 static int editor_hl_custom[] =
5960 {
5961   EL_INTERNAL_CASCADE_CE_ACTIVE,
5962   EL_CHAR('C'),
5963   EL_CHAR('E'),
5964   EL_EMPTY,
5965 };
5966
5967 static int editor_el_custom[] =
5968 {
5969   EL_CUSTOM_START + 0,
5970   EL_CUSTOM_START + 1,
5971   EL_CUSTOM_START + 2,
5972   EL_CUSTOM_START + 3,
5973
5974   EL_CUSTOM_START + 4,
5975   EL_CUSTOM_START + 5,
5976   EL_CUSTOM_START + 6,
5977   EL_CUSTOM_START + 7,
5978
5979   EL_CUSTOM_START + 8,
5980   EL_CUSTOM_START + 9,
5981   EL_CUSTOM_START + 10,
5982   EL_CUSTOM_START + 11,
5983
5984   EL_CUSTOM_START + 12,
5985   EL_CUSTOM_START + 13,
5986   EL_CUSTOM_START + 14,
5987   EL_CUSTOM_START + 15,
5988
5989   EL_CUSTOM_START + 16,
5990   EL_CUSTOM_START + 17,
5991   EL_CUSTOM_START + 18,
5992   EL_CUSTOM_START + 19,
5993
5994   EL_CUSTOM_START + 20,
5995   EL_CUSTOM_START + 21,
5996   EL_CUSTOM_START + 22,
5997   EL_CUSTOM_START + 23,
5998
5999   EL_CUSTOM_START + 24,
6000   EL_CUSTOM_START + 25,
6001   EL_CUSTOM_START + 26,
6002   EL_CUSTOM_START + 27,
6003
6004   EL_CUSTOM_START + 28,
6005   EL_CUSTOM_START + 29,
6006   EL_CUSTOM_START + 30,
6007   EL_CUSTOM_START + 31,
6008
6009   EL_CUSTOM_START + 32,
6010   EL_CUSTOM_START + 33,
6011   EL_CUSTOM_START + 34,
6012   EL_CUSTOM_START + 35,
6013
6014   EL_CUSTOM_START + 36,
6015   EL_CUSTOM_START + 37,
6016   EL_CUSTOM_START + 38,
6017   EL_CUSTOM_START + 39,
6018
6019   EL_CUSTOM_START + 40,
6020   EL_CUSTOM_START + 41,
6021   EL_CUSTOM_START + 42,
6022   EL_CUSTOM_START + 43,
6023
6024   EL_CUSTOM_START + 44,
6025   EL_CUSTOM_START + 45,
6026   EL_CUSTOM_START + 46,
6027   EL_CUSTOM_START + 47,
6028
6029   EL_CUSTOM_START + 48,
6030   EL_CUSTOM_START + 49,
6031   EL_CUSTOM_START + 50,
6032   EL_CUSTOM_START + 51,
6033
6034   EL_CUSTOM_START + 52,
6035   EL_CUSTOM_START + 53,
6036   EL_CUSTOM_START + 54,
6037   EL_CUSTOM_START + 55,
6038
6039   EL_CUSTOM_START + 56,
6040   EL_CUSTOM_START + 57,
6041   EL_CUSTOM_START + 58,
6042   EL_CUSTOM_START + 59,
6043
6044   EL_CUSTOM_START + 60,
6045   EL_CUSTOM_START + 61,
6046   EL_CUSTOM_START + 62,
6047   EL_CUSTOM_START + 63,
6048
6049   EL_CUSTOM_START + 64,
6050   EL_CUSTOM_START + 65,
6051   EL_CUSTOM_START + 66,
6052   EL_CUSTOM_START + 67,
6053
6054   EL_CUSTOM_START + 68,
6055   EL_CUSTOM_START + 69,
6056   EL_CUSTOM_START + 70,
6057   EL_CUSTOM_START + 71,
6058
6059   EL_CUSTOM_START + 72,
6060   EL_CUSTOM_START + 73,
6061   EL_CUSTOM_START + 74,
6062   EL_CUSTOM_START + 75,
6063
6064   EL_CUSTOM_START + 76,
6065   EL_CUSTOM_START + 77,
6066   EL_CUSTOM_START + 78,
6067   EL_CUSTOM_START + 79,
6068
6069   EL_CUSTOM_START + 80,
6070   EL_CUSTOM_START + 81,
6071   EL_CUSTOM_START + 82,
6072   EL_CUSTOM_START + 83,
6073
6074   EL_CUSTOM_START + 84,
6075   EL_CUSTOM_START + 85,
6076   EL_CUSTOM_START + 86,
6077   EL_CUSTOM_START + 87,
6078
6079   EL_CUSTOM_START + 88,
6080   EL_CUSTOM_START + 89,
6081   EL_CUSTOM_START + 90,
6082   EL_CUSTOM_START + 91,
6083
6084   EL_CUSTOM_START + 92,
6085   EL_CUSTOM_START + 93,
6086   EL_CUSTOM_START + 94,
6087   EL_CUSTOM_START + 95,
6088
6089   EL_CUSTOM_START + 96,
6090   EL_CUSTOM_START + 97,
6091   EL_CUSTOM_START + 98,
6092   EL_CUSTOM_START + 99,
6093
6094   EL_CUSTOM_START + 100,
6095   EL_CUSTOM_START + 101,
6096   EL_CUSTOM_START + 102,
6097   EL_CUSTOM_START + 103,
6098
6099   EL_CUSTOM_START + 104,
6100   EL_CUSTOM_START + 105,
6101   EL_CUSTOM_START + 106,
6102   EL_CUSTOM_START + 107,
6103
6104   EL_CUSTOM_START + 108,
6105   EL_CUSTOM_START + 109,
6106   EL_CUSTOM_START + 110,
6107   EL_CUSTOM_START + 111,
6108
6109   EL_CUSTOM_START + 112,
6110   EL_CUSTOM_START + 113,
6111   EL_CUSTOM_START + 114,
6112   EL_CUSTOM_START + 115,
6113
6114   EL_CUSTOM_START + 116,
6115   EL_CUSTOM_START + 117,
6116   EL_CUSTOM_START + 118,
6117   EL_CUSTOM_START + 119,
6118
6119   EL_CUSTOM_START + 120,
6120   EL_CUSTOM_START + 121,
6121   EL_CUSTOM_START + 122,
6122   EL_CUSTOM_START + 123,
6123
6124   EL_CUSTOM_START + 124,
6125   EL_CUSTOM_START + 125,
6126   EL_CUSTOM_START + 126,
6127   EL_CUSTOM_START + 127,
6128
6129   EL_CUSTOM_START + 128,
6130   EL_CUSTOM_START + 129,
6131   EL_CUSTOM_START + 130,
6132   EL_CUSTOM_START + 131,
6133
6134   EL_CUSTOM_START + 132,
6135   EL_CUSTOM_START + 133,
6136   EL_CUSTOM_START + 134,
6137   EL_CUSTOM_START + 135,
6138
6139   EL_CUSTOM_START + 136,
6140   EL_CUSTOM_START + 137,
6141   EL_CUSTOM_START + 138,
6142   EL_CUSTOM_START + 139,
6143
6144   EL_CUSTOM_START + 140,
6145   EL_CUSTOM_START + 141,
6146   EL_CUSTOM_START + 142,
6147   EL_CUSTOM_START + 143,
6148
6149   EL_CUSTOM_START + 144,
6150   EL_CUSTOM_START + 145,
6151   EL_CUSTOM_START + 146,
6152   EL_CUSTOM_START + 147,
6153
6154   EL_CUSTOM_START + 148,
6155   EL_CUSTOM_START + 149,
6156   EL_CUSTOM_START + 150,
6157   EL_CUSTOM_START + 151,
6158
6159   EL_CUSTOM_START + 152,
6160   EL_CUSTOM_START + 153,
6161   EL_CUSTOM_START + 154,
6162   EL_CUSTOM_START + 155,
6163
6164   EL_CUSTOM_START + 156,
6165   EL_CUSTOM_START + 157,
6166   EL_CUSTOM_START + 158,
6167   EL_CUSTOM_START + 159,
6168
6169   EL_CUSTOM_START + 160,
6170   EL_CUSTOM_START + 161,
6171   EL_CUSTOM_START + 162,
6172   EL_CUSTOM_START + 163,
6173
6174   EL_CUSTOM_START + 164,
6175   EL_CUSTOM_START + 165,
6176   EL_CUSTOM_START + 166,
6177   EL_CUSTOM_START + 167,
6178
6179   EL_CUSTOM_START + 168,
6180   EL_CUSTOM_START + 169,
6181   EL_CUSTOM_START + 170,
6182   EL_CUSTOM_START + 171,
6183
6184   EL_CUSTOM_START + 172,
6185   EL_CUSTOM_START + 173,
6186   EL_CUSTOM_START + 174,
6187   EL_CUSTOM_START + 175,
6188
6189   EL_CUSTOM_START + 176,
6190   EL_CUSTOM_START + 177,
6191   EL_CUSTOM_START + 178,
6192   EL_CUSTOM_START + 179,
6193
6194   EL_CUSTOM_START + 180,
6195   EL_CUSTOM_START + 181,
6196   EL_CUSTOM_START + 182,
6197   EL_CUSTOM_START + 183,
6198
6199   EL_CUSTOM_START + 184,
6200   EL_CUSTOM_START + 185,
6201   EL_CUSTOM_START + 186,
6202   EL_CUSTOM_START + 187,
6203
6204   EL_CUSTOM_START + 188,
6205   EL_CUSTOM_START + 189,
6206   EL_CUSTOM_START + 190,
6207   EL_CUSTOM_START + 191,
6208
6209   EL_CUSTOM_START + 192,
6210   EL_CUSTOM_START + 193,
6211   EL_CUSTOM_START + 194,
6212   EL_CUSTOM_START + 195,
6213
6214   EL_CUSTOM_START + 196,
6215   EL_CUSTOM_START + 197,
6216   EL_CUSTOM_START + 198,
6217   EL_CUSTOM_START + 199,
6218
6219   EL_CUSTOM_START + 200,
6220   EL_CUSTOM_START + 201,
6221   EL_CUSTOM_START + 202,
6222   EL_CUSTOM_START + 203,
6223
6224   EL_CUSTOM_START + 204,
6225   EL_CUSTOM_START + 205,
6226   EL_CUSTOM_START + 206,
6227   EL_CUSTOM_START + 207,
6228
6229   EL_CUSTOM_START + 208,
6230   EL_CUSTOM_START + 209,
6231   EL_CUSTOM_START + 210,
6232   EL_CUSTOM_START + 211,
6233
6234   EL_CUSTOM_START + 212,
6235   EL_CUSTOM_START + 213,
6236   EL_CUSTOM_START + 214,
6237   EL_CUSTOM_START + 215,
6238
6239   EL_CUSTOM_START + 216,
6240   EL_CUSTOM_START + 217,
6241   EL_CUSTOM_START + 218,
6242   EL_CUSTOM_START + 219,
6243
6244   EL_CUSTOM_START + 220,
6245   EL_CUSTOM_START + 221,
6246   EL_CUSTOM_START + 222,
6247   EL_CUSTOM_START + 223,
6248
6249   EL_CUSTOM_START + 224,
6250   EL_CUSTOM_START + 225,
6251   EL_CUSTOM_START + 226,
6252   EL_CUSTOM_START + 227,
6253
6254   EL_CUSTOM_START + 228,
6255   EL_CUSTOM_START + 229,
6256   EL_CUSTOM_START + 230,
6257   EL_CUSTOM_START + 231,
6258
6259   EL_CUSTOM_START + 232,
6260   EL_CUSTOM_START + 233,
6261   EL_CUSTOM_START + 234,
6262   EL_CUSTOM_START + 235,
6263
6264   EL_CUSTOM_START + 236,
6265   EL_CUSTOM_START + 237,
6266   EL_CUSTOM_START + 238,
6267   EL_CUSTOM_START + 239,
6268
6269   EL_CUSTOM_START + 240,
6270   EL_CUSTOM_START + 241,
6271   EL_CUSTOM_START + 242,
6272   EL_CUSTOM_START + 243,
6273
6274   EL_CUSTOM_START + 244,
6275   EL_CUSTOM_START + 245,
6276   EL_CUSTOM_START + 246,
6277   EL_CUSTOM_START + 247,
6278
6279   EL_CUSTOM_START + 248,
6280   EL_CUSTOM_START + 249,
6281   EL_CUSTOM_START + 250,
6282   EL_CUSTOM_START + 251,
6283
6284   EL_CUSTOM_START + 252,
6285   EL_CUSTOM_START + 253,
6286   EL_CUSTOM_START + 254,
6287   EL_CUSTOM_START + 255
6288 };
6289 static int *editor_hl_custom_ptr = editor_hl_custom;
6290 static int *editor_el_custom_ptr = editor_el_custom;
6291 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
6292 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
6293
6294 static int editor_hl_group[] =
6295 {
6296   EL_INTERNAL_CASCADE_GE_ACTIVE,
6297   EL_CHAR('G'),
6298   EL_CHAR('E'),
6299   EL_EMPTY,
6300 };
6301
6302 static int editor_el_group[] =
6303 {
6304   EL_GROUP_START + 0,
6305   EL_GROUP_START + 1,
6306   EL_GROUP_START + 2,
6307   EL_GROUP_START + 3,
6308
6309   EL_GROUP_START + 4,
6310   EL_GROUP_START + 5,
6311   EL_GROUP_START + 6,
6312   EL_GROUP_START + 7,
6313
6314   EL_GROUP_START + 8,
6315   EL_GROUP_START + 9,
6316   EL_GROUP_START + 10,
6317   EL_GROUP_START + 11,
6318
6319   EL_GROUP_START + 12,
6320   EL_GROUP_START + 13,
6321   EL_GROUP_START + 14,
6322   EL_GROUP_START + 15,
6323
6324   EL_GROUP_START + 16,
6325   EL_GROUP_START + 17,
6326   EL_GROUP_START + 18,
6327   EL_GROUP_START + 19,
6328
6329   EL_GROUP_START + 20,
6330   EL_GROUP_START + 21,
6331   EL_GROUP_START + 22,
6332   EL_GROUP_START + 23,
6333
6334   EL_GROUP_START + 24,
6335   EL_GROUP_START + 25,
6336   EL_GROUP_START + 26,
6337   EL_GROUP_START + 27,
6338
6339   EL_GROUP_START + 28,
6340   EL_GROUP_START + 29,
6341   EL_GROUP_START + 30,
6342   EL_GROUP_START + 31
6343 };
6344 static int *editor_hl_group_ptr = editor_hl_group;
6345 static int *editor_el_group_ptr = editor_el_group;
6346 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
6347 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
6348
6349 static int editor_hl_empty_space[] =
6350 {
6351   EL_INTERNAL_CASCADE_ES_ACTIVE,
6352   EL_CHAR('E'),
6353   EL_CHAR('S'),
6354   EL_EMPTY,
6355 };
6356
6357 static int editor_el_empty_space[] =
6358 {
6359   EL_EMPTY_SPACE_1,
6360   EL_EMPTY_SPACE_2,
6361   EL_EMPTY_SPACE_3,
6362   EL_EMPTY_SPACE_4,
6363
6364   EL_EMPTY_SPACE_5,
6365   EL_EMPTY_SPACE_6,
6366   EL_EMPTY_SPACE_7,
6367   EL_EMPTY_SPACE_8,
6368
6369   EL_EMPTY_SPACE_9,
6370   EL_EMPTY_SPACE_10,
6371   EL_EMPTY_SPACE_11,
6372   EL_EMPTY_SPACE_12,
6373
6374   EL_EMPTY_SPACE_13,
6375   EL_EMPTY_SPACE_14,
6376   EL_EMPTY_SPACE_15,
6377   EL_EMPTY_SPACE_16
6378 };
6379 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
6380 static int *editor_el_empty_space_ptr = editor_el_empty_space;
6381 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
6382 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
6383
6384 static int editor_hl_reference[] =
6385 {
6386   EL_INTERNAL_CASCADE_REF_ACTIVE,
6387   EL_CHAR('R'),
6388   EL_CHAR('E'),
6389   EL_CHAR('F')
6390 };
6391
6392 static int editor_el_reference[] =
6393 {
6394   EL_TRIGGER_PLAYER,
6395   EL_TRIGGER_ELEMENT,
6396   EL_TRIGGER_CE_VALUE,
6397   EL_TRIGGER_CE_SCORE,
6398
6399   EL_SELF,
6400   EL_ANY_ELEMENT,
6401   EL_CURRENT_CE_VALUE,
6402   EL_CURRENT_CE_SCORE,
6403
6404   EL_PREV_CE_8,
6405   EL_PREV_CE_7,
6406   EL_PREV_CE_6,
6407   EL_PREV_CE_5,
6408
6409   EL_PREV_CE_4,
6410   EL_PREV_CE_3,
6411   EL_PREV_CE_2,
6412   EL_PREV_CE_1,
6413
6414   EL_NEXT_CE_1,
6415   EL_NEXT_CE_2,
6416   EL_NEXT_CE_3,
6417   EL_NEXT_CE_4,
6418
6419   EL_NEXT_CE_5,
6420   EL_NEXT_CE_6,
6421   EL_NEXT_CE_7,
6422   EL_NEXT_CE_8,
6423 };
6424 static int *editor_hl_reference_ptr = editor_hl_reference;
6425 static int *editor_el_reference_ptr = editor_el_reference;
6426 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
6427 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
6428
6429 static int editor_hl_user_defined[] =
6430 {
6431   EL_INTERNAL_CASCADE_USER_ACTIVE,
6432   EL_CHAR('M'),
6433   EL_CHAR('Y'),
6434   EL_EMPTY,
6435 };
6436
6437 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
6438 static int *editor_el_user_defined_ptr = NULL;
6439 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
6440 static int num_editor_el_user_defined = 0;
6441
6442 static int editor_hl_dynamic[] =
6443 {
6444   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
6445   EL_CHAR('U'),
6446   EL_CHAR('S'),
6447   EL_CHAR('E'),
6448 };
6449
6450 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
6451 static int *editor_el_dynamic_ptr = NULL;
6452 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
6453 static int num_editor_el_dynamic = 0;
6454
6455 static int editor_hl_empty[] = { EL_EMPTY };
6456 static int *editor_el_empty = NULL;     // dynamically allocated
6457
6458 static int *editor_hl_empty_ptr = editor_hl_empty;
6459 static int *editor_el_empty_ptr = NULL;
6460 static int num_editor_hl_empty = 0;
6461 static int num_editor_el_empty = 0;     // dynamically determined, if needed
6462
6463 static boolean use_el_empty = FALSE;
6464
6465 static int *editor_elements = NULL;     // dynamically allocated
6466 static int num_editor_elements = 0;     // dynamically determined
6467
6468 static boolean setup_editor_cascade_never = FALSE;
6469
6470 static boolean setup_editor_el_players                  = TRUE;
6471 static boolean setup_editor_el_boulderdash              = TRUE;
6472 static boolean setup_editor_el_boulderdash_native       = TRUE;
6473 static boolean setup_editor_el_boulderdash_effects      = TRUE;
6474 static boolean setup_editor_el_emerald_mine             = TRUE;
6475 static boolean setup_editor_el_emerald_mine_club        = TRUE;
6476 static boolean setup_editor_el_more                     = TRUE;
6477 static boolean setup_editor_el_sokoban                  = TRUE;
6478 static boolean setup_editor_el_supaplex                 = TRUE;
6479 static boolean setup_editor_el_diamond_caves            = TRUE;
6480 static boolean setup_editor_el_dx_boulderdash           = TRUE;
6481 static boolean setup_editor_el_mirror_magic             = TRUE;
6482 static boolean setup_editor_el_deflektor                = TRUE;
6483 static boolean setup_editor_el_chars                    = TRUE;
6484 static boolean setup_editor_el_steel_chars              = TRUE;
6485 static boolean setup_editor_el_custom                   = TRUE;
6486 static boolean setup_editor_el_user_defined             = TRUE;
6487 static boolean setup_editor_el_dynamic                  = TRUE;
6488
6489 static int editor_hl_unused[] = { EL_EMPTY };
6490 static int *editor_hl_unused_ptr = editor_hl_unused;
6491 static int num_editor_hl_unused = 0;
6492
6493 static struct
6494 {
6495   boolean *setup_value;
6496   boolean *setup_cascade_value;
6497
6498   int **headline_list;
6499   int *headline_list_size;
6500
6501   int **element_list;
6502   int *element_list_size;
6503
6504   boolean last_setup_value;
6505 }
6506 editor_elements_info[] =
6507 {
6508   {
6509     &setup_editor_el_players,
6510     &setup_editor_cascade_never,
6511     &editor_hl_unused_ptr,              &num_editor_hl_unused,
6512     &editor_el_players_ptr,             &num_editor_el_players
6513   },
6514   {
6515     &setup_editor_el_boulderdash,
6516     &setup.editor_cascade.el_bd,
6517     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
6518     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
6519   },
6520   {
6521     &setup_editor_el_boulderdash_native,
6522     &setup.editor_cascade.el_bd_native,
6523     &editor_hl_boulderdash_native_ptr,  &num_editor_hl_boulderdash_native,
6524     &editor_el_boulderdash_native_ptr,  &num_editor_el_boulderdash_native
6525   },
6526   {
6527     &setup_editor_el_boulderdash_effects,
6528     &setup.editor_cascade.el_bd_effects,
6529     &editor_hl_boulderdash_effects_ptr, &num_editor_hl_boulderdash_effects,
6530     &editor_el_boulderdash_effects_ptr, &num_editor_el_boulderdash_effects
6531   },
6532   {
6533     &setup_editor_el_emerald_mine,
6534     &setup.editor_cascade.el_em,
6535     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
6536     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
6537   },
6538   {
6539     &setup_editor_el_emerald_mine_club,
6540     &setup.editor_cascade.el_emc,
6541     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
6542     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
6543   },
6544   {
6545     &setup_editor_el_more,
6546     &setup.editor_cascade.el_rnd,
6547     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
6548     &editor_el_rnd_ptr,                 &num_editor_el_rnd
6549   },
6550   {
6551     &setup_editor_el_sokoban,
6552     &setup.editor_cascade.el_sb,
6553     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
6554     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
6555   },
6556   {
6557     &setup_editor_el_supaplex,
6558     &setup.editor_cascade.el_sp,
6559     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
6560     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
6561   },
6562   {
6563     &setup_editor_el_diamond_caves,
6564     &setup.editor_cascade.el_dc,
6565     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
6566     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
6567   },
6568   {
6569     &setup_editor_el_dx_boulderdash,
6570     &setup.editor_cascade.el_dx,
6571     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
6572     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
6573   },
6574   {
6575     &setup_editor_el_mirror_magic,
6576     &setup.editor_cascade.el_mm,
6577     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
6578     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
6579   },
6580   {
6581     &setup_editor_el_deflektor,
6582     &setup.editor_cascade.el_df,
6583     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
6584     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
6585   },
6586   {
6587     &setup_editor_el_chars,
6588     &setup.editor_cascade.el_chars,
6589     &editor_hl_chars_ptr,               &num_editor_hl_chars,
6590     &editor_el_chars_ptr,               &num_editor_el_chars
6591   },
6592   {
6593     &setup_editor_el_steel_chars,
6594     &setup.editor_cascade.el_steel_chars,
6595     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
6596     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
6597   },
6598   {
6599     &setup_editor_el_custom,
6600     &setup.editor_cascade.el_ce,
6601     &editor_hl_custom_ptr,              &num_editor_hl_custom,
6602     &editor_el_custom_ptr,              &num_editor_el_custom
6603   },
6604   {
6605     &setup_editor_el_custom,
6606     &setup.editor_cascade.el_ge,
6607     &editor_hl_group_ptr,               &num_editor_hl_group,
6608     &editor_el_group_ptr,               &num_editor_el_group
6609   },
6610   {
6611     &setup_editor_el_custom,
6612     &setup.editor_cascade.el_es,
6613     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
6614     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
6615   },
6616   {
6617     &setup_editor_el_custom,
6618     &setup.editor_cascade.el_ref,
6619     &editor_hl_reference_ptr,           &num_editor_hl_reference,
6620     &editor_el_reference_ptr,           &num_editor_el_reference
6621   },
6622   {
6623     &setup_editor_el_user_defined,
6624     &setup.editor_cascade.el_user,
6625     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
6626     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
6627   },
6628   {
6629     &setup_editor_el_dynamic,
6630     &setup.editor_cascade.el_dynamic,
6631     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
6632     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
6633   },
6634   {
6635     &use_el_empty,
6636     &use_el_empty,
6637     &editor_hl_empty_ptr,               &num_editor_hl_empty,
6638     &editor_el_empty_ptr,               &num_editor_el_empty,
6639   },
6640   {
6641     NULL,
6642     NULL,
6643     NULL,                               NULL,
6644     NULL,                               NULL
6645   }
6646 };
6647
6648 static struct XY xy_directions[] =
6649 {
6650   { -1,  0 },
6651   { +1,  0 },
6652   {  0, -1 },
6653   {  0, +1 }
6654 };
6655
6656
6657 // ----------------------------------------------------------------------------
6658 // functions
6659 // ----------------------------------------------------------------------------
6660
6661 static int getMaxInfoTextLength(void)
6662 {
6663   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
6664 }
6665
6666 static int getTextWidthForGadget(char *text)
6667 {
6668   if (text == NULL)
6669     return 0;
6670
6671   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
6672 }
6673
6674 static int getTextWidthForDrawingArea(char *text)
6675 {
6676   if (text == NULL)
6677     return 0;
6678
6679   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_BORDER_SIZE);
6680 }
6681
6682 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
6683 {
6684   return (gi->x + gi->width + getTextWidthForGadget(text));
6685 }
6686
6687 static char *getElementInfoText(int element)
6688 {
6689   char *info_text = NULL;
6690
6691   if (element < MAX_NUM_ELEMENTS)
6692   {
6693     if (strlen(element_info[element].description) > 0)
6694       info_text = element_info[element].description;
6695     else if (element_info[element].custom_description != NULL)
6696       info_text = element_info[element].custom_description;
6697     else if (element_info[element].editor_description != NULL)
6698       info_text = element_info[element].editor_description;
6699   }
6700
6701   if (info_text == NULL)
6702     info_text = INFOTEXT_UNKNOWN_ELEMENT;
6703
6704   return info_text;
6705 }
6706
6707 static char *getElementDescriptionFilenameExt(char *basename)
6708 {
6709   char *elements_subdir = ELEMENTS_DIRECTORY;
6710   static char *elements_subdir2 = NULL;
6711   static char *filename = NULL;
6712
6713   if (elements_subdir2 == NULL)
6714     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
6715
6716   checked_free(filename);
6717
6718   // 1st try: look for element description in current level set directory
6719   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
6720   if (fileExists(filename))
6721     return filename;
6722
6723   free(filename);
6724
6725   // 2nd try: look for element description in the game's base directory
6726   filename = getPath3(options.docs_directory, elements_subdir, basename);
6727   if (fileExists(filename))
6728     return filename;
6729
6730   return NULL;
6731 }
6732
6733 static char *getElementDescriptionFilename(int element)
6734 {
6735   char basename[MAX_FILENAME_LEN];
6736   char *filename;
6737
6738   // 1st try: look for element description file for exactly this element
6739   sprintf(basename, "%s.txt", element_info[element].token_name);
6740   filename = getElementDescriptionFilenameExt(basename);
6741   if (filename != NULL)
6742     return filename;
6743
6744   // 2nd try: look for element description file for this element's class
6745   sprintf(basename, "%s.txt", element_info[element].class_name);
6746   filename = getElementDescriptionFilenameExt(basename);
6747   if (filename != NULL)
6748     return filename;
6749
6750   // 3rd try: look for generic fallback text file for any element
6751   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
6752   if (filename != NULL)
6753     return filename;
6754
6755   return NULL;
6756 }
6757
6758 static boolean suppressBorderElement(void)
6759 {
6760   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
6761           lev_fieldx <= MAX_ED_FIELDX &&
6762           lev_fieldy <= MAX_ED_FIELDY);
6763 }
6764
6765 static void InitDynamicEditorElementList(int **elements, int *num_elements)
6766 {
6767   boolean element_found[NUM_FILE_ELEMENTS];
6768   int i, x, y;
6769
6770   // initialize list of used elements to "not used"
6771   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6772     element_found[i] = FALSE;
6773
6774   // find all elements used in current level
6775   for (y = 0; y < lev_fieldy; y++)
6776   {
6777     for (x = 0; x < lev_fieldx; x++)
6778     {
6779       if (Tile[x][y] >= NUM_FILE_ELEMENTS)      // should never happen
6780         continue;
6781
6782       if (IS_MM_WALL(Tile[x][y]))
6783         element_found[map_mm_wall_element(Tile[x][y])] = TRUE;
6784       else
6785         element_found[Tile[x][y]] = TRUE;
6786     }
6787   }
6788
6789   *num_elements = 0;
6790
6791   // count number of elements used in current level
6792   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6793     if (element_found[i])
6794       (*num_elements)++;
6795
6796   // add space for up to 3 more elements for padding that may be needed
6797   *num_elements += 3;
6798
6799   // free memory for old list of elements, if needed
6800   checked_free(*elements);
6801
6802   // allocate memory for new list of elements
6803   *elements = checked_malloc(*num_elements * sizeof(int));
6804
6805   *num_elements = 0;
6806
6807   // add all elements used in current level (non-custom/group/empty elements)
6808   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6809     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) ||
6810                               IS_GROUP_ELEMENT(i) ||
6811                               IS_EMPTY_ELEMENT(i)))
6812       (*elements)[(*num_elements)++] = i;
6813
6814   // add all elements used in current level (custom/group/empty elements)
6815   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6816     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) ||
6817                              IS_GROUP_ELEMENT(i) ||
6818                              IS_EMPTY_ELEMENT(i)))
6819       (*elements)[(*num_elements)++] = i;
6820
6821   while (*num_elements % 4)     // pad with empty elements, if needed
6822     (*elements)[(*num_elements)++] = EL_EMPTY;
6823 }
6824
6825 static void ReinitializeElementList_EnableSections(void)
6826 {
6827   // default: enable all element sections
6828
6829   setup_editor_el_players               = TRUE;
6830   setup_editor_el_boulderdash           = TRUE;
6831   setup_editor_el_boulderdash_native    = TRUE;
6832   setup_editor_el_boulderdash_effects   = TRUE;
6833   setup_editor_el_emerald_mine          = TRUE;
6834   setup_editor_el_emerald_mine_club     = TRUE;
6835   setup_editor_el_more                  = TRUE;
6836   setup_editor_el_sokoban               = TRUE;
6837   setup_editor_el_supaplex              = TRUE;
6838   setup_editor_el_diamond_caves         = TRUE;
6839   setup_editor_el_dx_boulderdash        = TRUE;
6840   setup_editor_el_mirror_magic          = TRUE;
6841   setup_editor_el_deflektor             = TRUE;
6842   setup_editor_el_chars                 = TRUE;
6843   setup_editor_el_steel_chars           = TRUE;
6844
6845   setup_editor_el_custom                = TRUE;
6846   setup_editor_el_user_defined          = TRUE;
6847   setup_editor_el_dynamic               = TRUE;
6848
6849   // now disable all element sections not to be displayed
6850
6851   if (!setup.editor.el_classic)
6852   {
6853     setup_editor_el_players             = FALSE;
6854     setup_editor_el_boulderdash         = FALSE;
6855     setup_editor_el_boulderdash_native  = FALSE;
6856     setup_editor_el_boulderdash_effects = FALSE;
6857     setup_editor_el_emerald_mine        = FALSE;
6858     setup_editor_el_emerald_mine_club   = FALSE;
6859     setup_editor_el_more                = FALSE;
6860     setup_editor_el_sokoban             = FALSE;
6861     setup_editor_el_supaplex            = FALSE;
6862     setup_editor_el_diamond_caves       = FALSE;
6863     setup_editor_el_dx_boulderdash      = FALSE;
6864     setup_editor_el_mirror_magic        = FALSE;
6865     setup_editor_el_deflektor           = FALSE;
6866     setup_editor_el_chars               = FALSE;
6867     setup_editor_el_steel_chars         = FALSE;
6868   }
6869
6870   if (!setup.editor.el_custom)
6871   {
6872     setup_editor_el_custom              = FALSE;
6873   }
6874
6875   if (!setup.editor.el_user_defined)
6876   {
6877     setup_editor_el_user_defined        = FALSE;
6878   }
6879
6880   if (!setup.editor.el_dynamic)
6881   {
6882     setup_editor_el_dynamic             = FALSE;
6883   }
6884
6885   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
6886   {
6887     setup_editor_el_boulderdash_native  = FALSE;
6888     setup_editor_el_boulderdash_effects = FALSE;
6889     setup_editor_el_mirror_magic        = FALSE;
6890     setup_editor_el_deflektor           = FALSE;
6891   }
6892   else if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
6893   {
6894     setup_editor_el_players             = FALSE;
6895     setup_editor_el_boulderdash         = FALSE;
6896     setup_editor_el_emerald_mine        = FALSE;
6897     setup_editor_el_emerald_mine_club   = FALSE;
6898     setup_editor_el_more                = FALSE;
6899     setup_editor_el_sokoban             = FALSE;
6900     setup_editor_el_supaplex            = FALSE;
6901     setup_editor_el_diamond_caves       = FALSE;
6902     setup_editor_el_dx_boulderdash      = FALSE;
6903     setup_editor_el_mirror_magic        = FALSE;
6904     setup_editor_el_deflektor           = FALSE;
6905     setup_editor_el_chars               = FALSE;
6906     setup_editor_el_steel_chars         = FALSE;
6907
6908     setup_editor_el_custom              = FALSE;
6909   }
6910   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
6911   {
6912     setup_editor_el_boulderdash         = FALSE;
6913     setup_editor_el_boulderdash_native  = FALSE;
6914     setup_editor_el_boulderdash_effects = FALSE;
6915     setup_editor_el_more                = FALSE;
6916     setup_editor_el_sokoban             = FALSE;
6917     setup_editor_el_supaplex            = FALSE;
6918     setup_editor_el_diamond_caves       = FALSE;
6919     setup_editor_el_dx_boulderdash      = FALSE;
6920     setup_editor_el_mirror_magic        = FALSE;
6921     setup_editor_el_deflektor           = FALSE;
6922     setup_editor_el_steel_chars         = FALSE;
6923
6924     setup_editor_el_custom              = FALSE;
6925   }
6926   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
6927   {
6928     setup_editor_el_players             = FALSE;
6929     setup_editor_el_boulderdash         = FALSE;
6930     setup_editor_el_boulderdash_native  = FALSE;
6931     setup_editor_el_boulderdash_effects = FALSE;
6932     setup_editor_el_emerald_mine        = FALSE;
6933     setup_editor_el_emerald_mine_club   = FALSE;
6934     setup_editor_el_more                = FALSE;
6935     setup_editor_el_sokoban             = FALSE;
6936     setup_editor_el_diamond_caves       = FALSE;
6937     setup_editor_el_dx_boulderdash      = FALSE;
6938     setup_editor_el_mirror_magic        = FALSE;
6939     setup_editor_el_deflektor           = FALSE;
6940     setup_editor_el_chars               = FALSE;
6941     setup_editor_el_steel_chars         = FALSE;
6942
6943     setup_editor_el_custom              = FALSE;
6944   }
6945   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
6946   {
6947     setup_editor_el_players             = FALSE;
6948     setup_editor_el_boulderdash         = FALSE;
6949     setup_editor_el_boulderdash_native  = FALSE;
6950     setup_editor_el_boulderdash_effects = FALSE;
6951     setup_editor_el_emerald_mine        = FALSE;
6952     setup_editor_el_emerald_mine_club   = FALSE;
6953     setup_editor_el_more                = FALSE;
6954     setup_editor_el_sokoban             = FALSE;
6955     setup_editor_el_supaplex            = FALSE;
6956     setup_editor_el_diamond_caves       = FALSE;
6957     setup_editor_el_dx_boulderdash      = FALSE;
6958     setup_editor_el_steel_chars         = FALSE;
6959
6960     setup_editor_el_custom              = FALSE;
6961   }
6962 }
6963
6964 static void ReinitializeElementList(void)
6965 {
6966   static boolean initialization_needed = TRUE;
6967   int pos = 0;
6968   int i, j;
6969
6970   ReinitializeElementList_EnableSections();
6971
6972   if (initialization_needed)
6973   {
6974     LoadSetup_EditorCascade();          // load last editor cascade state
6975
6976     // initialize editor cascade element from saved cascade state
6977     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6978     {
6979       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
6980       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
6981
6982       if (IS_EDITOR_CASCADE(*cascade_element))
6983         *cascade_element =
6984           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
6985            EL_CASCADE_INACTIVE(*cascade_element));
6986     }
6987
6988     initialization_needed = FALSE;
6989   }
6990
6991   checked_free(editor_elements);
6992
6993   // reload optional user defined element list for each invocation of editor
6994   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
6995                                    &num_editor_el_user_defined);
6996
6997   // initialize dynamic level element list for each invocation of editor
6998   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
6999                                &num_editor_el_dynamic);
7000
7001   // initialize list of empty elements (used for padding, if needed)
7002   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7003     editor_el_empty[i] = EL_EMPTY;
7004
7005   // do some sanity checks for each element from element list
7006   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7007   {
7008     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
7009     {
7010       int element = (*editor_elements_info[i].element_list)[j];
7011
7012       if (element >= NUM_FILE_ELEMENTS)
7013         Warn("editor element %d is runtime element", element);
7014
7015       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
7016         Warn("no element description text for element %d", element);
7017     }
7018   }
7019
7020   num_editor_elements = 0;
7021   use_el_empty = FALSE;
7022
7023   // determine size of element list
7024   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7025   {
7026     if (*editor_elements_info[i].setup_value)
7027     {
7028       boolean found_inactive_cascade = FALSE;
7029
7030       if (setup.editor.el_headlines)
7031       {
7032         // required for correct padding of palette headline buttons
7033         if (*editor_elements_info[i].headline_list_size > 0)
7034           num_editor_elements += ED_ELEMENTLIST_COLS;
7035
7036         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
7037         {
7038           int element = (*editor_elements_info[i].headline_list)[j];
7039
7040           if (IS_EDITOR_CASCADE_INACTIVE(element))
7041             found_inactive_cascade = TRUE;
7042         }
7043       }
7044
7045       if (found_inactive_cascade)
7046         continue;
7047
7048       // required for correct padding of palette element buttons
7049       int element_list_size = *editor_elements_info[i].element_list_size;
7050       int element_rows =
7051         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
7052       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
7053
7054       num_editor_elements += element_buttons;
7055     }
7056   }
7057
7058   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
7059   {
7060     // offer at least as many elements as element buttons exist
7061     use_el_empty = TRUE;
7062     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
7063
7064     num_editor_elements += num_editor_el_empty;
7065   }
7066   else
7067   {
7068     num_editor_el_empty = 0;
7069   }
7070
7071   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
7072
7073   // fill element list
7074   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7075   {
7076     boolean found_inactive_cascade = FALSE;
7077
7078     if (*editor_elements_info[i].setup_value)
7079     {
7080       if (setup.editor.el_headlines)
7081       {
7082         // required for correct padding of palette headline buttons
7083         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
7084                              ED_ELEMENTLIST_COLS : 0);
7085
7086         for (j = 0; j < headline_size; j++)
7087         {
7088           // use empty elements for padding of palette headline buttons
7089           int element = (j < *editor_elements_info[i].headline_list_size ?
7090                          (*editor_elements_info[i].headline_list)[j] :
7091                          editor_el_empty[0]);
7092
7093           editor_elements[pos++] = element;
7094
7095           if (IS_EDITOR_CASCADE_INACTIVE(element))
7096             found_inactive_cascade = TRUE;
7097         }
7098       }
7099
7100       if (found_inactive_cascade)
7101         continue;
7102
7103       // required for correct padding of palette element buttons
7104       int element_list_size = *editor_elements_info[i].element_list_size;
7105       int element_rows =
7106         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
7107       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
7108
7109       // copy all elements from element list
7110       for (j = 0; j < element_list_size; j++)
7111         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
7112
7113       // use empty elements for padding of palette element buttons
7114       for (j = 0; j < element_buttons - element_list_size; j++)
7115         editor_elements[pos++] = editor_el_empty[0];
7116     }
7117   }
7118
7119   // (this function is also called before editor gadgets are initialized!)
7120   AdjustElementListScrollbar();
7121 }
7122
7123 void PrintEditorElementList(void)
7124 {
7125   boolean *stop = &setup_editor_el_user_defined;
7126   int i, j;
7127
7128   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
7129   {
7130     int cascade_element = (*editor_elements_info[i].headline_list)[0];
7131
7132     if (IS_EDITOR_CASCADE(cascade_element))
7133     {
7134       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
7135       char *headline = element_info[cascade_element_show].editor_description;
7136
7137       PrintLineWithPrefix("# ", "-", 77);
7138       Print("# %s\n", headline);
7139       PrintLineWithPrefix("# ", "-", 77);
7140     }
7141
7142     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
7143     {
7144       int element = (*editor_elements_info[i].headline_list)[j];
7145
7146       if (IS_EDITOR_CASCADE(element))
7147         element = EL_CHAR_MINUS;
7148
7149       Print("# %s\n", element_info[element].token_name);
7150     }
7151
7152     if (j > 0)
7153       Print("#\n");
7154
7155     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
7156     {
7157       int element = (*editor_elements_info[i].element_list)[j];
7158
7159       Print("# %s\n", element_info[element].token_name);
7160     }
7161
7162     if (j > 0)
7163       Print("#\n");
7164   }
7165 }
7166
7167 static void ReinitializeElementListButtons(void)
7168 {
7169   static boolean last_setup_value_headlines = FALSE;
7170   static boolean initialization_needed = TRUE;
7171   int i;
7172
7173   if (!initialization_needed)   // check if editor element setup has changed
7174   {
7175     if (last_setup_value_headlines != setup.editor.el_headlines)
7176       initialization_needed = TRUE;
7177
7178     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7179       if (editor_elements_info[i].last_setup_value !=
7180           *editor_elements_info[i].setup_value)
7181         initialization_needed = TRUE;
7182   }
7183
7184   if (!initialization_needed)
7185     return;
7186
7187   FreeLevelEditorGadgets();
7188   CreateLevelEditorGadgets();
7189
7190   // store current setup values for next invocation of this function
7191   last_setup_value_headlines = setup.editor.el_headlines;
7192   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7193     editor_elements_info[i].last_setup_value =
7194       *editor_elements_info[i].setup_value;
7195
7196   initialization_needed = FALSE;
7197 }
7198
7199 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
7200                               boolean input)
7201 {
7202   int border_graphic =
7203     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
7204   struct GraphicInfo *g = &graphic_info[border_graphic];
7205   Bitmap *src_bitmap = g->bitmap;
7206   int src_x = g->src_x;
7207   int src_y = g->src_y;
7208   int border_size = g->border_size;
7209   int border_xpos = g->width  - border_size;
7210   int border_ypos = g->height - border_size;
7211   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7212   int i;
7213
7214   BlitBitmap(src_bitmap, drawto, src_x, src_y,
7215              border_size, border_size,
7216              dest_x - border_size, dest_y - border_size);
7217   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
7218              border_size, border_size,
7219              dest_x + width, dest_y - border_size);
7220   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
7221              border_size, border_size,
7222              dest_x - border_size, dest_y + height);
7223   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
7224              border_size, border_size,
7225              dest_x + width, dest_y + height);
7226
7227   for (i = 0; i < width / tilesize; i++)
7228   {
7229     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
7230                tilesize, border_size,
7231                dest_x + i * tilesize, dest_y - border_size);
7232     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
7233                tilesize, border_size,
7234                dest_x + i * tilesize, dest_y + height);
7235   }
7236
7237   for (i = 0; i < height / tilesize; i++)
7238   {
7239     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
7240                border_size, tilesize,
7241                dest_x - border_size, dest_y + i * tilesize);
7242     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
7243                border_size, tilesize,
7244                dest_x + width, dest_y + i * tilesize);
7245   }
7246
7247   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
7248 }
7249
7250 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
7251 {
7252   int xsize_tile = MAX(ed_tilesize, xsize);
7253   int ysize_tile = MAX(ed_tilesize, ysize);
7254   int xsize_full = xsize + 1;
7255   int ysize_full = ysize + 1;
7256   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
7257   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
7258   Pixel line_color = getTabulatorBarColor();
7259
7260   if (line_color == BLACK_PIXEL)                // black => transparent
7261     return;
7262
7263   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
7264   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
7265   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
7266 }
7267
7268 static void DrawEditorLevelBorderLinesIfNeeded(void)
7269 {
7270   int xsize = lev_fieldx * ed_tilesize;
7271   int ysize = lev_fieldy * ed_tilesize;
7272   int line_size = getTabulatorBarHeight();
7273
7274   if (!suppressBorderElement())
7275     return;
7276
7277   // draw little border line around editable level playfield
7278
7279   if (xsize < SXSIZE)
7280     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
7281
7282   if (ysize < SYSIZE)
7283     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
7284
7285   if (xsize < SXSIZE && ysize < SYSIZE)
7286     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
7287 }
7288
7289 static void DrawEditorElement(int x, int y, int element)
7290 {
7291   DrawSizedElement(x, y, element, ed_tilesize);
7292 }
7293
7294 static void DrawEditorElementThruMask(int x, int y, int element)
7295 {
7296   DrawSizedElementThruMask(x, y, element, ed_tilesize);
7297 }
7298
7299 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
7300 {
7301   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
7302 }
7303
7304 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
7305 {
7306   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
7307   DrawEditorLevelBorderLinesIfNeeded();
7308 }
7309
7310 static void DrawDrawingArea(int id)
7311 {
7312   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7313   int x, y;
7314
7315   int *value = drawingarea_info[id].value;
7316   int area_xsize = drawingarea_info[id].area_xsize;
7317   int area_ysize = drawingarea_info[id].area_ysize;
7318   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7319
7320   for (x = 0; x < area_xsize; x++)
7321     for (y = 0; y < area_ysize; y++)
7322       DrawSizedGraphicExt(drawto,
7323                           gi->x + x * tilesize,
7324                           gi->y + y * tilesize,
7325                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
7326 }
7327
7328 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
7329 {
7330   int x, y;
7331   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
7332   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
7333
7334   BlitBitmap(drawto, drawto,
7335              SX + (dx == -1 ? ed_tilesize : 0),
7336              SY + (dy == -1 ? ed_tilesize : 0),
7337              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
7338              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
7339              SX + (dx == +1 ? ed_tilesize : 0),
7340              SY + (dy == +1 ? ed_tilesize : 0));
7341
7342   if (dx)
7343   {
7344     x = (dx == 1 ? 0 : ed_fieldx - 1);
7345     for (y = 0; y < ed_fieldy; y++)
7346       DrawEditorElementOrWall(x, y, from_x, from_y);
7347   }
7348   else if (dy)
7349   {
7350     y = (dy == 1 ? 0 : ed_fieldy - 1);
7351     for (x = 0; x < ed_fieldx; x++)
7352       DrawEditorElementOrWall(x, y, from_x, from_y);
7353   }
7354
7355   redraw_mask |= REDRAW_FIELD;
7356   BackToFront();
7357 }
7358
7359 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
7360                                    int *x, int *y)
7361 {
7362   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
7363 }
7364
7365 static void CreateControlButtons(void)
7366 {
7367   struct GadgetInfo *gi;
7368   int i;
7369
7370   // create toolbox buttons
7371   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7372   {
7373     int type_id = controlbutton_info[i].gadget_id;      // same as gadget ID here
7374     int id = controlbutton_info[i].gadget_id;
7375     int type = controlbutton_info[i].gadget_type;
7376     int graphic = controlbutton_info[i].graphic;
7377     struct XYTileSize *pos = controlbutton_info[i].pos;
7378     struct GraphicInfo *gd = &graphic_info[graphic];
7379     Bitmap *deco_bitmap = NULL;
7380     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
7381     int tile_size = 0, deco_shift = 0;
7382     boolean deco_masked = FALSE;
7383     int gd_x1 = gd->src_x;
7384     int gd_y1 = gd->src_y;
7385     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7386     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7387     int gd_x1a = gd->src_x + gd->active_xoffset;
7388     int gd_y1a = gd->src_y + gd->active_yoffset;
7389     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7390     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7391     int x = pos->x;
7392     int y = pos->y;
7393     unsigned int event_mask;
7394     int radio_button_nr = RADIO_NR_NONE;
7395     boolean checked = FALSE;
7396
7397     if (type_id != i)
7398       Fail("'controlbutton_info' structure corrupted at index %d -- please fix", i);
7399
7400     if (type == GD_TYPE_RADIO_BUTTON)
7401     {
7402       event_mask = GD_EVENT_PRESSED;
7403       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
7404
7405       if (id == drawing_function)
7406         checked = TRUE;
7407     }
7408     else
7409     {
7410       if (id == GADGET_ID_WRAP_LEFT ||
7411           id == GADGET_ID_WRAP_RIGHT ||
7412           id == GADGET_ID_WRAP_UP ||
7413           id == GADGET_ID_WRAP_DOWN)
7414         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7415       else
7416         event_mask = GD_EVENT_RELEASED;
7417     }
7418
7419     if (id == GADGET_ID_PROPERTIES ||
7420         id == GADGET_ID_PALETTE)
7421     {
7422       x += DX;
7423       y += DY;
7424     }
7425     else if (id == GADGET_ID_ELEMENT_LEFT ||
7426              id == GADGET_ID_ELEMENT_MIDDLE ||
7427              id == GADGET_ID_ELEMENT_RIGHT)
7428     {
7429       x += DX;
7430       y += DY;
7431
7432       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
7433                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
7434                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
7435
7436       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
7437                                    editor.button.element_left.tile_size :
7438                                    id == GADGET_ID_ELEMENT_MIDDLE ?
7439                                    editor.button.element_middle.tile_size :
7440                                    id == GADGET_ID_ELEMENT_RIGHT ?
7441                                    editor.button.element_right.tile_size : 0);
7442
7443       // make sure that decoration does not overlap gadget border
7444       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
7445
7446       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
7447
7448       deco_xpos = (gd->width  - tile_size) / 2;
7449       deco_ypos = (gd->height - tile_size) / 2;
7450       deco_shift = 1;
7451       deco_masked = gd->draw_masked;
7452     }
7453     else
7454     {
7455       x += EX;
7456       y += EY;
7457     }
7458
7459     gi = CreateGadget(GDI_CUSTOM_ID, id,
7460                       GDI_CUSTOM_TYPE_ID, type_id,
7461                       GDI_IMAGE_ID, graphic,
7462                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
7463                       GDI_X, x,
7464                       GDI_Y, y,
7465                       GDI_WIDTH, gd->width,
7466                       GDI_HEIGHT, gd->height,
7467                       GDI_TYPE, type,
7468                       GDI_STATE, GD_BUTTON_UNPRESSED,
7469                       GDI_RADIO_NR, radio_button_nr,
7470                       GDI_CHECKED, checked,
7471                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7472                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7473                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7474                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7475                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7476                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7477                       GDI_DECORATION_SIZE, tile_size, tile_size,
7478                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
7479                       GDI_DECORATION_MASKED, deco_masked,
7480                       GDI_EVENT_MASK, event_mask,
7481                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7482                       GDI_CALLBACK_ACTION, HandleControlButtons,
7483                       GDI_END);
7484
7485     if (gi == NULL)
7486       Fail("cannot create gadget");
7487
7488     level_editor_gadget[id] = gi;
7489   }
7490
7491   // these values are not constant, but can change at runtime
7492   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
7493   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
7494   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
7495   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
7496   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
7497   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
7498   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
7499   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
7500   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
7501   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
7502   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
7503   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
7504
7505   // create buttons for scrolling of drawing area and element list
7506   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
7507   {
7508     int id = scrollbutton_info[i].gadget_id;
7509     int type_id = scrollbutton_info[i].gadget_type_id;
7510     int graphic = scrollbutton_info[i].graphic;
7511     struct GraphicInfo *gd = &graphic_info[graphic];
7512     Bitmap *gd_bitmap = gd->bitmap;
7513     int gd_x1 = gd->src_x;
7514     int gd_y1 = gd->src_y;
7515     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7516     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7517     int width  = gd->width;
7518     int height = gd->height;
7519     int x = scrollbutton_pos[i].x;
7520     int y = scrollbutton_pos[i].y;
7521     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7522
7523     if (type_id != i)
7524       Fail("'scrollbutton_info' structure corrupted at index %d -- please fix", i);
7525
7526     if (id == GADGET_ID_SCROLL_LIST_UP ||
7527         id == GADGET_ID_SCROLL_LIST_DOWN)
7528     {
7529       x += PX;
7530       y += PY;
7531     }
7532     else
7533     {
7534       x += SX;
7535       y += SY;
7536     }
7537
7538     gi = CreateGadget(GDI_CUSTOM_ID, id,
7539                       GDI_CUSTOM_TYPE_ID, type_id,
7540                       GDI_IMAGE_ID, graphic,
7541                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
7542                       GDI_X, x,
7543                       GDI_Y, y,
7544                       GDI_WIDTH, width,
7545                       GDI_HEIGHT, height,
7546                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7547                       GDI_STATE, GD_BUTTON_UNPRESSED,
7548                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7549                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7550                       GDI_EVENT_MASK, event_mask,
7551                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7552                       GDI_CALLBACK_ACTION, HandleControlButtons,
7553                       GDI_END);
7554
7555     if (gi == NULL)
7556       Fail("cannot create gadget");
7557
7558     level_editor_gadget[id] = gi;
7559   }
7560
7561   // create buttons for element list
7562   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7563   {
7564     int type_id = i;
7565     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
7566     int graphic = IMG_EDITOR_PALETTE_BUTTON;
7567     struct GraphicInfo *gd = &graphic_info[graphic];
7568     Bitmap *gd_bitmap = gd->bitmap;
7569     Bitmap *deco_bitmap;
7570     int deco_x, deco_y, deco_xpos, deco_ypos;
7571     int gd_x1 = gd->src_x;
7572     int gd_y1 = gd->src_y;
7573     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7574     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7575     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
7576     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
7577     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
7578     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
7579     int element = editor_elements[i];
7580     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
7581     unsigned int event_mask = GD_EVENT_RELEASED;
7582
7583     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
7584
7585     deco_xpos = (gd->width  - tile_size) / 2;
7586     deco_ypos = (gd->height - tile_size) / 2;
7587
7588     gi = CreateGadget(GDI_CUSTOM_ID, id,
7589                       GDI_CUSTOM_TYPE_ID, type_id,
7590                       GDI_IMAGE_ID, graphic,
7591                       GDI_INFO_TEXT, getElementInfoText(element),
7592                       GDI_X, x,
7593                       GDI_Y, y,
7594                       GDI_WIDTH, gd->width,
7595                       GDI_HEIGHT, gd->height,
7596                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7597                       GDI_STATE, GD_BUTTON_UNPRESSED,
7598                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7599                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7600                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7601                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7602                       GDI_DECORATION_SIZE, tile_size, tile_size,
7603                       GDI_DECORATION_SHIFTING, 1, 1,
7604                       GDI_EVENT_MASK, event_mask,
7605                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7606                       GDI_CALLBACK_ACTION, HandleControlButtons,
7607                       GDI_END);
7608
7609     if (gi == NULL)
7610       Fail("cannot create gadget");
7611
7612     level_editor_gadget[id] = gi;
7613   }
7614 }
7615
7616 static void CreateCounterButtons(void)
7617 {
7618   int max_infotext_len = getMaxInfoTextLength();
7619   int i;
7620
7621   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
7622   {
7623     int type_id = counterbutton_info[i].gadget_type_id;
7624     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
7625     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
7626     int j;
7627
7628     if (type_id != i)
7629       Fail("'counterbutton_info' structure corrupted at index %d -- please fix", i);
7630
7631     // determine horizontal position to the right of specified gadget
7632     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7633       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
7634            ED_GADGET_TEXT_DISTANCE);
7635
7636     // determine horizontal offset for leading text
7637     if (counterbutton_info[i].text_left != NULL)
7638       x += getTextWidthForGadget(counterbutton_info[i].text_left);
7639
7640     for (j = 0; j < 2; j++)
7641     {
7642       struct GadgetInfo *gi;
7643       int id = (j == 0 ?
7644                 counterbutton_info[i].gadget_id_down :
7645                 counterbutton_info[i].gadget_id_up);
7646       int graphic;
7647       struct GraphicInfo *gd;
7648       int gd_x1, gd_x2, gd_y1, gd_y2;
7649       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7650       char infotext[max_infotext_len + 1];
7651
7652       if (i == ED_COUNTER_ID_SELECT_LEVEL)
7653       {
7654         graphic = (j == 0 ?
7655                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
7656                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
7657
7658         event_mask |= GD_EVENT_RELEASED;
7659
7660         if (j == 0)
7661         {
7662           x = DX + editor.button.prev_level.x;
7663           y = DY + editor.button.prev_level.y;
7664         }
7665         else
7666         {
7667           x = DX + editor.button.next_level.x;
7668           y = DY + editor.button.next_level.y;
7669         }
7670       }
7671       else
7672       {
7673         graphic = (j == 0 ?
7674                    IMG_EDITOR_COUNTER_DOWN :
7675                    IMG_EDITOR_COUNTER_UP);
7676       }
7677
7678       gd = &graphic_info[graphic];
7679
7680       gd_x1 = gd->src_x;
7681       gd_y1 = gd->src_y;
7682       gd_x2 = gd->src_x + gd->pressed_xoffset;
7683       gd_y2 = gd->src_y + gd->pressed_yoffset;
7684
7685       sprintf(infotext, "%s counter value by 1, 5 or 10",
7686               (j == 0 ? "Decrease" : "Increase"));
7687
7688       gi = CreateGadget(GDI_CUSTOM_ID, id,
7689                         GDI_CUSTOM_TYPE_ID, type_id,
7690                         GDI_IMAGE_ID, graphic,
7691                         GDI_INFO_TEXT, infotext,
7692                         GDI_X, x,
7693                         GDI_Y, y,
7694                         GDI_WIDTH, gd->width,
7695                         GDI_HEIGHT, gd->height,
7696                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7697                         GDI_STATE, GD_BUTTON_UNPRESSED,
7698                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7699                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7700                         GDI_EVENT_MASK, event_mask,
7701                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7702                         GDI_CALLBACK_ACTION, HandleCounterButtons,
7703                         GDI_END);
7704
7705       if (gi == NULL)
7706         Fail("cannot create gadget");
7707
7708       level_editor_gadget[id] = gi;
7709       right_gadget_border[id] =
7710         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7711
7712       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
7713
7714       if (j == 0)
7715       {
7716         int font_type = FONT_INPUT_1;
7717         int font_type_active = FONT_INPUT_1_ACTIVE;
7718
7719         id = counterbutton_info[i].gadget_id_text;
7720
7721         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7722
7723         if (i == ED_COUNTER_ID_SELECT_LEVEL)
7724         {
7725           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
7726
7727           font_type = FONT_LEVEL_NUMBER;
7728           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
7729
7730           x = DX + editor.input.level_number.x;
7731           y = DY + editor.input.level_number.y;
7732         }
7733         else
7734         {
7735           graphic = IMG_EDITOR_COUNTER_INPUT;
7736         }
7737
7738         gd = &graphic_info[graphic];
7739
7740         gd_x1 = gd->src_x;
7741         gd_y1 = gd->src_y;
7742         gd_x2 = gd->src_x + gd->active_xoffset;
7743         gd_y2 = gd->src_y + gd->active_yoffset;
7744
7745         gi = CreateGadget(GDI_CUSTOM_ID, id,
7746                           GDI_CUSTOM_TYPE_ID, type_id,
7747                           GDI_IMAGE_ID, graphic,
7748                           GDI_INFO_TEXT, "Enter counter value",
7749                           GDI_X, x,
7750                           GDI_Y, y,
7751                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
7752                           GDI_NUMBER_VALUE, 0,
7753                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
7754                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
7755                           GDI_TEXT_SIZE, 3,     // minimal counter text size
7756                           GDI_TEXT_FONT, font_type,
7757                           GDI_TEXT_FONT_ACTIVE, font_type_active,
7758                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7759                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7760                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7761                           GDI_DESIGN_WIDTH, gd->width,
7762                           GDI_EVENT_MASK, event_mask,
7763                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7764                           GDI_CALLBACK_ACTION, HandleCounterButtons,
7765                           GDI_END);
7766
7767         if (gi == NULL)
7768           Fail("cannot create gadget");
7769
7770         level_editor_gadget[id] = gi;
7771         right_gadget_border[id] =
7772           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7773
7774         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
7775       }
7776     }
7777   }
7778 }
7779
7780 static void CreateDrawingAreas(void)
7781 {
7782   int i;
7783
7784   // these values are not constant, but can change at runtime
7785   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
7786   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
7787
7788   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
7789   {
7790     struct GadgetInfo *gi;
7791     int id = drawingarea_info[i].gadget_id;
7792     int type_id = drawingarea_info[i].gadget_type_id;
7793     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
7794     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
7795     int area_xsize = drawingarea_info[i].area_xsize;
7796     int area_ysize = drawingarea_info[i].area_ysize;
7797     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
7798                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
7799     unsigned int event_mask =
7800       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
7801       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
7802
7803     if (type_id != i)
7804       Fail("'drawingarea_info' structure corrupted at index %d -- please fix", i);
7805
7806     // determine horizontal position to the right of specified gadget
7807     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
7808       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
7809            ED_DRAWINGAREA_TEXT_DISTANCE);
7810
7811     // determine horizontal offset for leading text
7812     if (drawingarea_info[i].text_left != NULL)
7813       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
7814
7815     gi = CreateGadget(GDI_CUSTOM_ID, id,
7816                       GDI_CUSTOM_TYPE_ID, type_id,
7817                       GDI_X, x,
7818                       GDI_Y, y,
7819                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
7820                       GDI_AREA_SIZE, area_xsize, area_ysize,
7821                       GDI_ITEM_SIZE, item_size, item_size,
7822                       GDI_EVENT_MASK, event_mask,
7823                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
7824                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
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, drawingarea_info[i].text_right);
7833   }
7834 }
7835
7836 static void CreateTextInputGadgets(void)
7837 {
7838   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
7839   int max_infotext_len = getMaxInfoTextLength();
7840   int i;
7841
7842   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
7843   {
7844     int gd_x1 = gd->src_x;
7845     int gd_y1 = gd->src_y;
7846     int gd_x2 = gd->src_x + gd->active_xoffset;
7847     int gd_y2 = gd->src_y + gd->active_yoffset;
7848     struct GadgetInfo *gi;
7849     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7850     char infotext[MAX_OUTPUT_LINESIZE + 1];
7851     int id = textinput_info[i].gadget_id;
7852     int type_id = textinput_info[i].gadget_type_id;
7853     int x, y;
7854
7855     if (type_id != i)
7856       Fail("'textinput_info' structure corrupted at index %d -- please fix", i);
7857
7858     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
7859     {
7860       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
7861       int border_size = gd->border_size;
7862       int font_nr = FONT_INPUT_1;
7863       int font_height = getFontHeight(font_nr);
7864       int xoffset = element_border + TILEX + element_border + 3 * border_size;
7865       int yoffset = element_border + (TILEY - font_height) / 2;
7866
7867       x = (editor.settings.element_name.x != -1 ?
7868            editor.settings.element_name.x :
7869            editor.settings.element_graphic.x + xoffset) - border_size;
7870       y = (editor.settings.element_name.y != -1 ?
7871            editor.settings.element_name.y :
7872            editor.settings.element_graphic.y + yoffset) - border_size;
7873     }
7874     else
7875     {
7876       x = ED_SETTINGS_X(textinput_info[i].x);
7877       y = ED_SETTINGS_Y(textinput_info[i].y);
7878     }
7879
7880     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
7881     infotext[max_infotext_len] = '\0';
7882
7883     gi = CreateGadget(GDI_CUSTOM_ID, id,
7884                       GDI_CUSTOM_TYPE_ID, type_id,
7885                       GDI_INFO_TEXT, infotext,
7886                       GDI_X, SX + x,
7887                       GDI_Y, SY + y,
7888                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
7889                       GDI_TEXT_VALUE, textinput_info[i].value,
7890                       GDI_TEXT_SIZE, textinput_info[i].size,
7891                       GDI_TEXT_FONT, FONT_INPUT_1,
7892                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7893                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7894                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7895                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7896                       GDI_DESIGN_WIDTH, gd->width,
7897                       GDI_EVENT_MASK, event_mask,
7898                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7899                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
7900                       GDI_END);
7901
7902     if (gi == NULL)
7903       Fail("cannot create gadget");
7904
7905     level_editor_gadget[id] = gi;
7906   }
7907 }
7908
7909 static void CreateTextAreaGadgets(void)
7910 {
7911   int max_infotext_len = getMaxInfoTextLength();
7912   int i;
7913
7914   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
7915   {
7916     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
7917     int gd_x1 = gd->src_x;
7918     int gd_y1 = gd->src_y;
7919     int gd_x2 = gd->src_x + gd->active_xoffset;
7920     int gd_y2 = gd->src_y + gd->active_yoffset;
7921     struct GadgetInfo *gi;
7922     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
7923     char infotext[MAX_OUTPUT_LINESIZE + 1];
7924     int id = textarea_info[i].gadget_id;
7925     int type_id = textarea_info[i].gadget_type_id;
7926     int area_xsize = textarea_info[i].xsize;
7927     int area_ysize = textarea_info[i].ysize;
7928
7929     if (type_id != i)
7930       Fail("'textarea_info' structure corrupted at index %d -- please fix", i);
7931
7932     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
7933     infotext[max_infotext_len] = '\0';
7934
7935     gi = CreateGadget(GDI_CUSTOM_ID, id,
7936                       GDI_CUSTOM_TYPE_ID, type_id,
7937                       GDI_INFO_TEXT, infotext,
7938                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
7939                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
7940                       GDI_TYPE, GD_TYPE_TEXT_AREA,
7941                       GDI_AREA_SIZE, area_xsize, area_ysize,
7942                       GDI_TEXT_FONT, FONT_INPUT_1,
7943                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7944                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7945                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7946                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7947                       GDI_DESIGN_WIDTH, gd->width,
7948                       GDI_EVENT_MASK, event_mask,
7949                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7950                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
7951                       GDI_END);
7952
7953     if (gi == NULL)
7954       Fail("cannot create gadget");
7955
7956     level_editor_gadget[id] = gi;
7957   }
7958 }
7959
7960 static void CreateSelectboxGadgets(void)
7961 {
7962   int max_infotext_len = getMaxInfoTextLength();
7963
7964   int i, j;
7965
7966   for (i = 0; i < ED_NUM_SELECTBOX; i++)
7967   {
7968     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
7969     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
7970     int gd_x1 = gd->src_x;
7971     int gd_y1 = gd->src_y;
7972     int gd_x2 = gd->src_x + gd->active_xoffset;
7973     int gd_y2 = gd->src_y + gd->active_yoffset;
7974     int selectbox_button_xsize = gd2->width;
7975     struct GadgetInfo *gi;
7976     char infotext[MAX_OUTPUT_LINESIZE + 1];
7977     int id = selectbox_info[i].gadget_id;
7978     int type_id = selectbox_info[i].gadget_type_id;
7979     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
7980     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
7981     unsigned int event_mask =
7982       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7983
7984     if (type_id != i)
7985       Fail("'selectbox_info' structure corrupted at index %d -- please fix", i);
7986
7987     if (selectbox_info[i].size == -1)   // dynamically determine size
7988     {
7989       // (we cannot use -1 for uninitialized values if we directly compare
7990       // with results from strlen(), because the '<' and '>' operation will
7991       // implicitely cast -1 to an unsigned integer value!)
7992       selectbox_info[i].size = 0;
7993
7994       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
7995         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
7996           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
7997
7998       selectbox_info[i].size++;         // add one character empty space
7999     }
8000
8001     // determine horizontal position to the right of specified gadget
8002     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
8003       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
8004            ED_GADGET_TEXT_DISTANCE);
8005
8006     // determine horizontal offset for leading text
8007     if (selectbox_info[i].text_left != NULL)
8008       x += getTextWidthForGadget(selectbox_info[i].text_left);
8009
8010     sprintf(infotext, "%s", selectbox_info[i].infotext);
8011     infotext[max_infotext_len] = '\0';
8012
8013     gi = CreateGadget(GDI_CUSTOM_ID, id,
8014                       GDI_CUSTOM_TYPE_ID, type_id,
8015                       GDI_INFO_TEXT, infotext,
8016                       GDI_X, x,
8017                       GDI_Y, y,
8018                       GDI_TYPE, GD_TYPE_SELECTBOX,
8019                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
8020                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
8021                       GDI_TEXT_SIZE, selectbox_info[i].size,
8022                       GDI_TEXT_FONT, FONT_INPUT_1,
8023                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
8024                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
8025                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8026                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8027                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8028                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
8029                       GDI_DESIGN_WIDTH, gd->width,
8030                       GDI_EVENT_MASK, event_mask,
8031                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8032                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
8033                       GDI_END);
8034
8035     if (gi == NULL)
8036       Fail("cannot create gadget");
8037
8038     level_editor_gadget[id] = gi;
8039     right_gadget_border[id] =
8040       getRightGadgetBorder(gi, selectbox_info[i].text_right);
8041   }
8042 }
8043
8044 static void CreateTextbuttonGadgets(void)
8045 {
8046   int max_infotext_len = getMaxInfoTextLength();
8047   int i;
8048
8049   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
8050   {
8051     int id = textbutton_info[i].gadget_id;
8052     int type_id = textbutton_info[i].gadget_type_id;
8053     int is_tab_button =
8054       ((id >= GADGET_ID_LEVELCONFIG_LEVEL && id <= GADGET_ID_LEVELCONFIG_ENGINE) ||
8055        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
8056     int graphic =
8057       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
8058     int gadget_distance =
8059       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
8060     struct GraphicInfo *gd = &graphic_info[graphic];
8061     int gd_x1 = gd->src_x;
8062     int gd_y1 = gd->src_y;
8063     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8064     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8065     int gd_x1a = gd->src_x + gd->active_xoffset;
8066     int gd_y1a = gd->src_y + gd->active_yoffset;
8067     int border_xsize = gd->border_size + gd->draw_xoffset;
8068     int border_ysize = gd->border_size;
8069     struct GadgetInfo *gi;
8070     unsigned int event_mask = GD_EVENT_RELEASED;
8071     char infotext[MAX_OUTPUT_LINESIZE + 1];
8072     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
8073     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
8074
8075     if (type_id != i)
8076       Fail("'textbutton_info' structure corrupted at index %d -- please fix", i);
8077
8078     if (textbutton_info[i].size == -1)  // dynamically determine size
8079       textbutton_info[i].size = strlen(textbutton_info[i].text);
8080
8081     sprintf(infotext, "%s", textbutton_info[i].infotext);
8082     infotext[max_infotext_len] = '\0';
8083
8084     // determine horizontal position to the right of specified gadget
8085     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8086     {
8087       int gadget_id_align = textbutton_info[i].gadget_id_align;
8088
8089       x = right_gadget_border[gadget_id_align] + gadget_distance;
8090
8091       if (textbutton_info[i].y == -1)
8092         y = level_editor_gadget[gadget_id_align]->y;
8093     }
8094
8095     // determine horizontal offset for leading text
8096     if (textbutton_info[i].text_left != NULL)
8097       x += getTextWidthForGadget(textbutton_info[i].text_left);
8098
8099     gi = CreateGadget(GDI_CUSTOM_ID, id,
8100                       GDI_CUSTOM_TYPE_ID, type_id,
8101                       GDI_IMAGE_ID, graphic,
8102                       GDI_INFO_TEXT, infotext,
8103                       GDI_X, x,
8104                       GDI_Y, y,
8105                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
8106                       GDI_TEXT_VALUE, textbutton_info[i].text,
8107                       GDI_TEXT_SIZE, textbutton_info[i].size,
8108                       GDI_TEXT_FONT, FONT_INPUT_2,
8109                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
8110                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8111                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8112                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8113                       GDI_BORDER_SIZE, border_xsize, border_ysize,
8114                       GDI_DESIGN_WIDTH, gd->width,
8115                       GDI_DECORATION_SHIFTING, 1, 1,
8116                       GDI_EVENT_MASK, event_mask,
8117                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8118                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
8119                       GDI_END);
8120
8121     if (gi == NULL)
8122       Fail("cannot create gadget");
8123
8124     level_editor_gadget[id] = gi;
8125     right_gadget_border[id] =
8126       getRightGadgetBorder(gi, textbutton_info[i].text_right);
8127   }
8128 }
8129
8130 static void CreateGraphicbuttonGadgets(void)
8131 {
8132   struct GadgetInfo *gi;
8133   int i;
8134
8135   // create buttons for scrolling of drawing area and element list
8136   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
8137   {
8138     int id = graphicbutton_info[i].gadget_id;
8139     int type_id = graphicbutton_info[i].gadget_type_id;
8140     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
8141     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
8142     int graphic = graphicbutton_info[i].graphic;
8143     struct GraphicInfo *gd = &graphic_info[graphic];
8144     int gd_x1 = gd->src_x;
8145     int gd_y1 = gd->src_y;
8146     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8147     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8148     unsigned int event_mask = GD_EVENT_RELEASED;
8149
8150     if (type_id != i)
8151       Fail("'graphicbutton_info' structure corrupted at index %d -- please fix", i);
8152
8153     // determine horizontal position to the right of specified gadget
8154     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8155       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
8156            ED_GADGET_TEXT_DISTANCE);
8157
8158     // determine horizontal offset for leading text
8159     if (graphicbutton_info[i].text_left != NULL)
8160       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
8161
8162     gi = CreateGadget(GDI_CUSTOM_ID, id,
8163                       GDI_CUSTOM_TYPE_ID, type_id,
8164                       GDI_IMAGE_ID, graphic,
8165                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
8166                       GDI_X, x,
8167                       GDI_Y, y,
8168                       GDI_WIDTH, gd->width,
8169                       GDI_HEIGHT, gd->height,
8170                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
8171                       GDI_STATE, GD_BUTTON_UNPRESSED,
8172                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8173                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8174                       GDI_EVENT_MASK, event_mask,
8175                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8176                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
8177                       GDI_END);
8178
8179     if (gi == NULL)
8180       Fail("cannot create gadget");
8181
8182     level_editor_gadget[id] = gi;
8183     right_gadget_border[id] =
8184       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
8185   }
8186 }
8187
8188 static void CreateScrollbarGadgets(void)
8189 {
8190   int i;
8191
8192   // these values are not constant, but can change at runtime
8193   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
8194     SX + ED_SCROLL_HORIZONTAL_XPOS;
8195   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
8196     SY + ED_SCROLL_HORIZONTAL_YPOS;
8197   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
8198     ED_SCROLL_HORIZONTAL_XSIZE;
8199   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
8200     ED_SCROLL_HORIZONTAL_YSIZE;
8201   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
8202   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
8203   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
8204   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
8205
8206   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
8207     SX + ED_SCROLL_VERTICAL_XPOS;
8208   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
8209     SY + ED_SCROLL_VERTICAL_YPOS;
8210   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
8211     ED_SCROLL_VERTICAL_XSIZE;
8212   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
8213     ED_SCROLL_VERTICAL_YSIZE;
8214   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
8215   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
8216   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
8217   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
8218
8219   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
8220     PX + ED_SCROLL2_VERTICAL_XPOS;
8221   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
8222     PY + ED_SCROLL2_VERTICAL_YPOS;
8223   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
8224     ED_SCROLL2_VERTICAL_XSIZE;
8225   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
8226     ED_SCROLL2_VERTICAL_YSIZE;
8227   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
8228   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
8229   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
8230   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
8231
8232   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
8233   {
8234     int id = scrollbar_info[i].gadget_id;
8235     int type_id = scrollbar_info[i].gadget_type_id;
8236     int graphic = scrollbar_info[i].graphic;
8237     struct GraphicInfo *gd = &graphic_info[graphic];
8238     int gd_x1 = gd->src_x;
8239     int gd_y1 = gd->src_y;
8240     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8241     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8242     struct GadgetInfo *gi;
8243     int items_max, items_visible, item_position;
8244     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
8245
8246     if (type_id != i)
8247       Fail("'scrollbar_info' structure corrupted at index %d -- please fix", i);
8248
8249     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
8250     {
8251       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
8252       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
8253       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
8254     }
8255     else        // drawing area scrollbars
8256     {
8257       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
8258       {
8259         items_max = MAX(lev_fieldx + 2, ed_fieldx);
8260         items_visible = ed_fieldx;
8261         item_position = 0;
8262       }
8263       else
8264       {
8265         items_max = MAX(lev_fieldy + 2, ed_fieldy);
8266         items_visible = ed_fieldy;
8267         item_position = 0;
8268       }
8269     }
8270
8271     gi = CreateGadget(GDI_CUSTOM_ID, id,
8272                       GDI_CUSTOM_TYPE_ID, type_id,
8273                       GDI_IMAGE_ID, graphic,
8274                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
8275                       GDI_X, scrollbar_pos[i].x,
8276                       GDI_Y, scrollbar_pos[i].y,
8277                       GDI_WIDTH, scrollbar_pos[i].width,
8278                       GDI_HEIGHT, scrollbar_pos[i].height,
8279                       GDI_TYPE, scrollbar_info[i].type,
8280                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
8281                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8282                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
8283                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
8284                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
8285                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
8286                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
8287                       GDI_STATE, GD_BUTTON_UNPRESSED,
8288                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8289                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8290                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8291                       GDI_EVENT_MASK, event_mask,
8292                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8293                       GDI_CALLBACK_ACTION, HandleControlButtons,
8294                       GDI_END);
8295
8296     if (gi == NULL)
8297       Fail("cannot create gadget");
8298
8299     level_editor_gadget[id] = gi;
8300   }
8301 }
8302
8303 static void CreateCheckbuttonGadgets(void)
8304 {
8305   struct GadgetInfo *gi;
8306   int i;
8307
8308   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
8309   {
8310     int id = checkbutton_info[i].gadget_id;
8311     int type_id = checkbutton_info[i].gadget_type_id;
8312     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
8313                    IMG_EDITOR_CHECKBOX);
8314     struct GraphicInfo *gd = &graphic_info[graphic];
8315     int gd_x1 = gd->src_x;
8316     int gd_y1 = gd->src_y;
8317     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8318     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8319     int gd_x1a = gd->src_x + gd->active_xoffset;
8320     int gd_y1a = gd->src_y + gd->active_yoffset;
8321     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8322     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8323     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
8324     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
8325     unsigned int event_mask = GD_EVENT_PRESSED;
8326
8327     if (type_id != i)
8328       Fail("'checkbutton_info' structure corrupted at index %d -- please fix", i);
8329
8330     // determine horizontal position to the right of specified gadget
8331     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8332       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
8333            ED_GADGET_TEXT_DISTANCE);
8334
8335     // determine horizontal offset for leading text
8336     if (checkbutton_info[i].text_left != NULL)
8337       x += getTextWidthForGadget(checkbutton_info[i].text_left);
8338
8339     gi = CreateGadget(GDI_CUSTOM_ID, id,
8340                       GDI_CUSTOM_TYPE_ID, type_id,
8341                       GDI_IMAGE_ID, graphic,
8342                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
8343                       GDI_X, x,
8344                       GDI_Y, y,
8345                       GDI_WIDTH, gd->width,
8346                       GDI_HEIGHT, gd->height,
8347                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
8348                       GDI_CHECKED, *checkbutton_info[i].value,
8349                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8350                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8351                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8352                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8353                       GDI_EVENT_MASK, event_mask,
8354                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8355                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
8356                       GDI_END);
8357
8358     if (gi == NULL)
8359       Fail("cannot create gadget");
8360
8361     level_editor_gadget[id] = gi;
8362     right_gadget_border[id] =
8363       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
8364   }
8365 }
8366
8367 static void CreateRadiobuttonGadgets(void)
8368 {
8369   int graphic = IMG_EDITOR_RADIOBUTTON;
8370   struct GraphicInfo *gd = &graphic_info[graphic];
8371   int gd_x1 = gd->src_x;
8372   int gd_y1 = gd->src_y;
8373   int gd_x2 = gd->src_x + gd->pressed_xoffset;
8374   int gd_y2 = gd->src_y + gd->pressed_yoffset;
8375   int gd_x1a = gd->src_x + gd->active_xoffset;
8376   int gd_y1a = gd->src_y + gd->active_yoffset;
8377   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8378   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8379   struct GadgetInfo *gi;
8380   int i;
8381
8382   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
8383   {
8384     int id = radiobutton_info[i].gadget_id;
8385     int type_id = radiobutton_info[i].gadget_type_id;
8386     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
8387     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
8388     unsigned int event_mask = GD_EVENT_PRESSED;
8389
8390     if (type_id != i)
8391       Fail("'radiobutton_info' structure corrupted at index %d -- please fix", i);
8392
8393     int checked =
8394       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
8395
8396     // determine horizontal position to the right of specified gadget
8397     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
8398       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
8399            ED_GADGET_TEXT_DISTANCE);
8400
8401     // determine horizontal offset for leading text
8402     if (radiobutton_info[i].text_left != NULL)
8403       x += getTextWidthForGadget(radiobutton_info[i].text_left);
8404
8405     gi = CreateGadget(GDI_CUSTOM_ID, id,
8406                       GDI_CUSTOM_TYPE_ID, type_id,
8407                       GDI_IMAGE_ID, graphic,
8408                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
8409                       GDI_X, x,
8410                       GDI_Y, y,
8411                       GDI_WIDTH, gd->width,
8412                       GDI_HEIGHT, gd->height,
8413                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
8414                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
8415                       GDI_CHECKED, checked,
8416                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8417                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8418                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8419                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8420                       GDI_EVENT_MASK, event_mask,
8421                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8422                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
8423                       GDI_END);
8424
8425     if (gi == NULL)
8426       Fail("cannot create gadget");
8427
8428     level_editor_gadget[id] = gi;
8429     right_gadget_border[id] =
8430       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
8431   }
8432 }
8433
8434 void CreateLevelEditorGadgets(void)
8435 {
8436   // force EDITOR font inside level editor
8437   SetFontStatus(GAME_MODE_EDITOR);
8438
8439   // these values are not constant, but can change at runtime
8440   ed_fieldx = MAX_ED_FIELDX - 1;
8441   ed_fieldy = MAX_ED_FIELDY - 1;
8442
8443   num_editor_gadgets = NUM_EDITOR_GADGETS;
8444
8445   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
8446
8447   level_editor_gadget =
8448     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
8449   right_gadget_border =
8450     checked_calloc(num_editor_gadgets * sizeof(int));
8451
8452   // set number of empty (padding) element buttons to maximum number of buttons
8453   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
8454
8455   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
8456   editor_el_empty_ptr = editor_el_empty;
8457
8458   use_permanent_palette = !editor.palette.show_as_separate_screen;
8459
8460   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
8461
8462   ReinitializeElementList();
8463
8464   CreateControlButtons();
8465   CreateScrollbarGadgets();
8466
8467   // order of function calls is important because of cross-references
8468   CreateCheckbuttonGadgets();
8469   CreateCounterButtons();
8470   CreateRadiobuttonGadgets();
8471   CreateTextInputGadgets();
8472   CreateTextAreaGadgets();
8473   CreateSelectboxGadgets();
8474   CreateGraphicbuttonGadgets();
8475   CreateTextbuttonGadgets();
8476   CreateDrawingAreas();
8477
8478   ResetFontStatus();
8479 }
8480
8481 void FreeLevelEditorGadgets(void)
8482 {
8483   int i;
8484
8485   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
8486
8487   for (i = 0; i < num_editor_gadgets; i++)
8488   {
8489     FreeGadget(level_editor_gadget[i]);
8490
8491     level_editor_gadget[i] = NULL;
8492   }
8493
8494   checked_free(level_editor_gadget);
8495   checked_free(right_gadget_border);
8496
8497   checked_free(editor_el_empty);
8498 }
8499
8500 static void MapCounterButtons(int id)
8501 {
8502   int font_nr = FONT_TEXT_1;
8503   int font_height = getFontHeight(font_nr);
8504   int gadget_id_down = counterbutton_info[id].gadget_id_down;
8505   int gadget_id_text = counterbutton_info[id].gadget_id_text;
8506   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
8507   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
8508   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
8509   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
8510   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
8511   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8512   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8513   int yoffset = (gi_down->height - font_height) / 2;
8514   int x_left = gi_down->x - xoffset_left;
8515   int x_right;  // set after gadget position was modified
8516   int y_above = gi_down->y - yoffset_above;
8517   int x = gi_down->x;
8518   int y;        // set after gadget position was modified
8519
8520   // counter limits must be changed first to prevent value truncation
8521   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
8522                             counterbutton_info[id].max_value);
8523
8524   // right text position might have changed after setting position above
8525   x_right = gi_up->x + gi_up->width + xoffset_right;
8526
8527   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
8528
8529   // set position for counter gadgets with dynamically determined position
8530   if (id != ED_COUNTER_ID_SELECT_LEVEL)
8531   {
8532     ModifyGadget(gi_down, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8533     ModifyGadget(gi_text, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8534     ModifyGadget(gi_up,   GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8535   }
8536
8537   // vertical position might have changed after setting position above
8538   y = gi_up->y + yoffset;
8539
8540   if (counterbutton_info[id].text_above)
8541     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
8542
8543   if (counterbutton_info[id].text_left)
8544     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
8545
8546   if (counterbutton_info[id].text_right)
8547     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
8548
8549   MapGadget(gi_down);
8550   MapGadget(gi_text);
8551   MapGadget(gi_up);
8552 }
8553
8554 static void MapControlButtons(void)
8555 {
8556   int counter_id;
8557   int i;
8558
8559   // map toolbox buttons (excluding special CE toolbox buttons)
8560   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
8561     MapGadget(level_editor_gadget[i]);
8562
8563   // map toolbox buttons (element properties buttons)
8564   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
8565     MapGadget(level_editor_gadget[i]);
8566
8567   if (use_permanent_palette)
8568   {
8569     // map buttons to select elements
8570     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
8571       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
8572     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
8573     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
8574     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
8575   }
8576
8577   // map buttons to select level
8578   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
8579   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
8580   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
8581   MapCounterButtons(counter_id);
8582 }
8583
8584 static void MapDrawingArea(int id)
8585 {
8586   int font_nr = FONT_TEXT_1;
8587   int font_height = getFontHeight(font_nr);
8588   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
8589   int area_xsize = gi->drawing.area_xsize;
8590   int area_ysize = gi->drawing.area_ysize;
8591   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8592   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
8593   int x_left  = gi->x - xoffset_left - ED_DRAWINGAREA_BORDER_SIZE;
8594   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
8595   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
8596   int x_below = gi->x + (gi->width - xoffset_below) / 2;
8597   int y_side  = gi->y + (gi->height - font_height) / 2;
8598   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
8599   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
8600
8601   if (drawingarea_info[id].text_left)
8602     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
8603
8604   if (drawingarea_info[id].text_right)
8605     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
8606
8607   if (drawingarea_info[id].text_above)
8608     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
8609
8610   if (drawingarea_info[id].text_below)
8611     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
8612
8613   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
8614   {
8615     DrawElementBorder(gi->x, gi->y,
8616                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
8617                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
8618
8619     DrawDrawingArea(id);
8620   }
8621
8622   MapGadget(gi);
8623 }
8624
8625 static void MapTextInputGadget(int id)
8626 {
8627   int font_nr = FONT_TEXT_1;
8628   int font_height = getFontHeight(font_nr);
8629   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
8630   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8631   int x_above = ED_SETTINGS_X(textinput_info[id].x);
8632   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
8633
8634   if (textinput_info[id].text_above)
8635     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
8636
8637   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
8638
8639   MapGadget(gi);
8640 }
8641
8642 static void MapTextAreaGadget(int id)
8643 {
8644   int font_nr = FONT_TEXT_1;
8645   int font_height = getFontHeight(font_nr);
8646   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
8647   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8648   int x_above = ED_SETTINGS_X(textarea_info[id].x);
8649   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
8650   char *text_above = textarea_info[id].text_above;
8651
8652   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
8653     text_above = textarea_info[id].text_above_cropped;
8654
8655   if (text_above)
8656     DrawTextS(x_above, y_above, font_nr, text_above);
8657
8658   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
8659
8660   MapGadget(gi);
8661 }
8662
8663 static void MapSelectboxGadget(int id)
8664 {
8665   int font_nr = FONT_TEXT_1;
8666   int font_height = getFontHeight(font_nr);
8667   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
8668   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
8669   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8670   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8671   int yoffset = (gi->height - font_height) / 2;
8672   int x_left = gi->x - xoffset_left;
8673   int x_right = gi->x + gi->width + xoffset_right;
8674   int y_above = gi->y - yoffset_above;
8675   int x = gi->x;
8676   int y = gi->y + yoffset;
8677
8678   if (selectbox_info[id].text_above)
8679     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
8680
8681   if (selectbox_info[id].text_left)
8682     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
8683
8684   if (selectbox_info[id].text_right)
8685     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
8686
8687   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
8688
8689   MapGadget(gi);
8690 }
8691
8692 static void MapTextbuttonGadget(int id)
8693 {
8694   int font_nr = FONT_TEXT_1;
8695   int font_height = getFontHeight(font_nr);
8696   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
8697   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
8698   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8699   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8700   int yoffset = (gi->height - font_height) / 2;
8701   int x_left = gi->x - xoffset_left;
8702   int x_right = gi->x + gi->width + xoffset_right;
8703   int y_above = gi->y - yoffset_above;
8704   int x = gi->x;
8705   int y = gi->y + yoffset;
8706
8707   // only show button to delete change pages when more than minimum pages
8708   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
8709       custom_element.num_change_pages == MIN_CHANGE_PAGES)
8710     return;
8711
8712   if (textbutton_info[id].text_above)
8713     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
8714
8715   if (textbutton_info[id].text_left)
8716     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
8717
8718   if (textbutton_info[id].text_right)
8719     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
8720
8721   MapGadget(gi);
8722 }
8723
8724 static void MapGraphicbuttonGadget(int id)
8725 {
8726   int font_nr = FONT_TEXT_1;
8727   int font_height = getFontHeight(font_nr);
8728   struct GadgetInfo *gi = level_editor_gadget[graphicbutton_info[id].gadget_id];
8729   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
8730   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8731   int yoffset = (gi->height - font_height) / 2;
8732   int x_left = gi->x - xoffset_left;
8733   int x_right = gi->x + gi->width + xoffset_right;
8734   int y = gi->y + yoffset;
8735
8736   if (graphicbutton_info[id].text_left)
8737     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
8738
8739   if (graphicbutton_info[id].text_right)
8740     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
8741
8742   MapGadget(gi);
8743 }
8744
8745 static void MapRadiobuttonGadget(int id)
8746 {
8747   int font_nr = FONT_TEXT_1;
8748   int font_height = getFontHeight(font_nr);
8749   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
8750   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8751   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8752   int yoffset = (gi->height - font_height) / 2;
8753   int x_left = gi->x - xoffset_left;
8754   int x_right = gi->x + gi->width + xoffset_right;
8755   int y = gi->y + yoffset;
8756   boolean checked =
8757     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
8758
8759   if (radiobutton_info[id].text_left)
8760     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
8761
8762   if (radiobutton_info[id].text_right)
8763     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
8764
8765   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
8766
8767   MapGadget(gi);
8768 }
8769
8770 static void MapCheckbuttonGadget(int id)
8771 {
8772   int font_nr = FONT_TEXT_1;
8773   int font_height = getFontHeight(font_nr);
8774   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
8775   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8776   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8777   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8778   int yoffset = (gi->height - font_height) / 2;
8779   int y_above = gi->y - yoffset_above;
8780   int x = gi->x;
8781   int x_left, x_right, y;       // set after gadget position was modified
8782
8783   // set position for gadgets with dynamically determined position
8784   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
8785     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x), GDI_END);
8786   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
8787
8788   x_left = gi->x - xoffset_left;
8789   x_right = gi->x + gi->width + xoffset_right;
8790   y = gi->y + yoffset;
8791
8792   if (checkbutton_info[id].text_above)
8793     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
8794
8795   if (checkbutton_info[id].text_left)
8796     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
8797
8798   if (checkbutton_info[id].text_right)
8799     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
8800
8801   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
8802
8803   MapGadget(gi);
8804 }
8805
8806 static void MapMainDrawingArea(void)
8807 {
8808   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
8809   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
8810   int i;
8811
8812   if (suppressBorderElement())
8813   {
8814     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
8815     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
8816   }
8817
8818   for (i = ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
8819   {
8820     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
8821           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
8822          no_horizontal_scrollbar) ||
8823         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
8824           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
8825          no_vertical_scrollbar))
8826       continue;
8827
8828     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
8829   }
8830
8831   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
8832   {
8833     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
8834         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
8835       continue;
8836
8837     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
8838   }
8839
8840   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
8841 }
8842
8843 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
8844 {
8845   int i;
8846
8847   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
8848   {
8849     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
8850         i == GADGET_ID_CUSTOM_COPY_TO ||
8851         i == GADGET_ID_CUSTOM_EXCHANGE ||
8852         i == GADGET_ID_CUSTOM_COPY ||
8853         i == GADGET_ID_CUSTOM_PASTE)
8854     {
8855       if (map)
8856         MapGadget(level_editor_gadget[i]);
8857       else
8858         UnmapGadget(level_editor_gadget[i]);
8859     }
8860   }
8861 }
8862
8863 static void MapLevelEditorToolboxCustomGadgets(void)
8864 {
8865   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
8866 }
8867
8868 static void MapLevelEditorToolboxCustomGadgetsIfNeeded(void)
8869 {
8870   if (IS_CUSTOM_ELEMENT(properties_element) ||
8871       IS_GROUP_ELEMENT(properties_element) ||
8872       IS_EMPTY_ELEMENT(properties_element))
8873     MapLevelEditorToolboxCustomGadgets();
8874 }
8875
8876 static void UnmapLevelEditorToolboxCustomGadgets(void)
8877 {
8878   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
8879 }
8880
8881 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
8882 {
8883   int i;
8884
8885   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
8886   {
8887     if (i != GADGET_ID_SINGLE_ITEMS &&
8888         i != GADGET_ID_PICK_ELEMENT)
8889     {
8890       struct GadgetInfo *gi = level_editor_gadget[i];
8891
8892       if (map)
8893       {
8894         MapGadget(gi);
8895       }
8896       else
8897       {
8898         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
8899         struct GraphicInfo *gd = &graphic_info[graphic];
8900
8901         UnmapGadget(gi);
8902
8903         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
8904                    gi->width, gi->height, gi->x, gi->y);
8905
8906         redraw_mask |= REDRAW_DOOR_3;
8907       }
8908     }
8909   }
8910 }
8911
8912 static void MapLevelEditorToolboxDrawingGadgets(void)
8913 {
8914   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
8915 }
8916
8917 static void UnmapLevelEditorToolboxDrawingGadgets(void)
8918 {
8919   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
8920 }
8921
8922 static void UnmapDrawingArea(int id)
8923 {
8924   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
8925 }
8926
8927 static void UnmapLevelEditorFieldGadgets(void)
8928 {
8929   int i;
8930
8931   for (i = 0; i < num_editor_gadgets; i++)
8932     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
8933                           level_editor_gadget[i]->y))
8934       UnmapGadget(level_editor_gadget[i]);
8935 }
8936
8937 void UnmapLevelEditorGadgets(void)
8938 {
8939   int i;
8940
8941   for (i = 0; i < num_editor_gadgets; i++)
8942     UnmapGadget(level_editor_gadget[i]);
8943 }
8944
8945 static void ResetUndoBuffer(void)
8946 {
8947   undo_buffer_position = -1;
8948   undo_buffer_steps = -1;
8949   redo_buffer_steps = 0;
8950
8951   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
8952
8953   level.changed = FALSE;
8954 }
8955
8956 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
8957 {
8958   if (remap_toolbox_gadgets)
8959   {
8960     ModifyEditorElementList();
8961     RedrawDrawingElements();
8962   }
8963
8964   if (edit_mode == ED_MODE_LEVELCONFIG)
8965     DrawLevelConfigWindow();
8966   else if (edit_mode == ED_MODE_PROPERTIES)
8967     DrawPropertiesWindow();
8968   else if (edit_mode == ED_MODE_PALETTE)
8969     DrawPaletteWindow();
8970   else  // edit_mode == ED_MODE_DRAWING
8971     DrawDrawingWindowExt(remap_toolbox_gadgets);
8972 }
8973
8974 static void DrawEditModeWindow(void)
8975 {
8976   DrawEditModeWindowExt(TRUE);
8977 }
8978
8979 static void DrawEditModeWindow_PlayfieldOnly(void)
8980 {
8981   DrawEditModeWindowExt(FALSE);
8982 }
8983
8984 static void ChangeEditModeWindow(int new_edit_mode)
8985 {
8986   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
8987
8988   DrawEditModeWindow();
8989 }
8990
8991 static boolean LevelChanged(void)
8992 {
8993   boolean field_changed = FALSE;
8994   int x, y;
8995
8996   for (y = 0; y < lev_fieldy; y++)
8997     for (x = 0; x < lev_fieldx; x++)
8998       if (Tile[x][y] != level.field[x][y])
8999         field_changed = TRUE;
9000
9001   return (level.changed || field_changed);
9002 }
9003
9004 static boolean PrepareSavingIntoPersonalLevelSet(void)
9005 {
9006   static LevelDirTree *last_copied_leveldir = NULL;
9007   static LevelDirTree *last_written_leveldir = NULL;
9008   static int last_copied_level_nr = -1;
9009   static int last_written_level_nr = -1;
9010   LevelDirTree *leveldir_former = leveldir_current;
9011   int level_nr_former = level_nr;
9012   int new_level_nr;
9013
9014   // remember last mod/save so that for current session, we write
9015   // back to the same personal copy, asking only about overwrite.
9016   if (leveldir_current == last_copied_leveldir &&
9017       level_nr == last_copied_level_nr)
9018   {
9019     // "cd" to personal level set dir (as used when writing last copy)
9020     leveldir_current = last_written_leveldir;
9021     level_nr = last_written_level_nr;
9022
9023     return TRUE;
9024   }
9025
9026   if (!Request("This level is read-only! "
9027                "Save into personal level set?", REQ_ASK))
9028     return FALSE;
9029
9030   // "cd" to personal level set dir (for writing copy the first time)
9031   leveldir_current =
9032     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
9033
9034   // this may happen if "setup.internal.create_user_levelset" is FALSE
9035   // or if file "levelinfo.conf" is missing in personal user level set
9036   if (leveldir_current == NULL)
9037   {
9038     Request("Cannot find personal level set?!", REQ_CONFIRM);
9039
9040     leveldir_current = leveldir_former;
9041
9042     return FALSE;
9043   }
9044
9045   // find unused level number
9046   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
9047   {
9048     static char *level_filename = NULL;
9049
9050     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
9051
9052     if (!fileExists(level_filename))
9053       break;
9054   }
9055
9056   last_copied_leveldir = leveldir_former;
9057   last_copied_level_nr = level_nr_former;
9058
9059   last_written_leveldir = leveldir_current;
9060   last_written_level_nr = level_nr = new_level_nr;
9061
9062   return TRUE;
9063 }
9064
9065 static void ModifyLevelConfigForSavingIntoPersonalLevelSet(char *former_name)
9066 {
9067   static char *filename_levelinfo = NULL, *mod_name = NULL;
9068   FILE *file;
9069
9070   // annotate this copy-and-mod in personal levelinfo.conf
9071   setString(&filename_levelinfo,
9072             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
9073
9074   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
9075   {
9076     fprintf(file, "\n");
9077     fprintf(file, "# level %d was modified from:\n", level_nr);
9078     fprintf(file, "# - previous level set name:    %s\n",
9079             former_name);
9080     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
9081             level.file_info.nr, level.name);
9082     fprintf(file, "# - previous author:            %s\n",
9083             level.author);
9084     fprintf(file, "# - previous save date:         ");
9085
9086     if (level.creation_date.src == DATE_SRC_LEVELFILE)
9087     {
9088       fprintf(file, "%04d-%02d-%02d\n",
9089               level.creation_date.year,
9090               level.creation_date.month,
9091               level.creation_date.day);
9092     }
9093     else
9094     {
9095       fprintf(file, "not recorded\n");
9096     }
9097
9098     fclose(file);
9099   }
9100
9101   if (level_nr > leveldir_current->last_level)
9102     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
9103
9104   // else: allow the save even if annotation failed
9105
9106   // now... spray graffiti on the old level vital statistics
9107   // user can change these; just trying to set a good baseline
9108
9109   // don't truncate names for fear of making offensive or silly:
9110   // long-named original author only recorded in levelinfo.conf.
9111   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
9112   if (!strEqual(level.author, leveldir_current->author))
9113   {
9114     setString(&mod_name, getStringCat3(leveldir_current->author,
9115                                        " after ", level.author));
9116
9117     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
9118       setString(&mod_name,
9119                 getStringCat2(leveldir_current->author, " (ed.)"));
9120
9121     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
9122       setString(&mod_name, leveldir_current->author);
9123
9124     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
9125
9126     // less worried about truncation here
9127     setString(&mod_name, getStringCat2("Mod: ", level.name));
9128     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
9129   }
9130 }
9131
9132 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
9133                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
9134 {
9135   int x, y;
9136
9137   for (x = 0; x < lev_fieldx; x++)
9138     for (y = 0; y < lev_fieldy; y++)
9139       dst[x][y] = src[x][y];
9140 }
9141
9142 static int setSelectboxValue(int selectbox_id, int new_value)
9143 {
9144   int new_index_value = 0;
9145   int i;
9146
9147   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
9148     if (selectbox_info[selectbox_id].options[i].value == new_value)
9149       new_index_value = i;
9150
9151   *selectbox_info[selectbox_id].value =
9152     selectbox_info[selectbox_id].options[new_index_value].value;
9153
9154   return new_index_value;
9155 }
9156
9157 static void setSelectboxSpecialActionVariablesIfNeeded(void)
9158 {
9159   int i;
9160
9161   // change action mode and arg variables according to action type variable
9162   for (i = 0; action_arg_options[i].value != -1; i++)
9163   {
9164     if (action_arg_options[i].value == custom_element_change.action_type)
9165     {
9166       int mode = action_arg_options[i].mode;
9167
9168       // only change if corresponding selectbox has changed
9169       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
9170           action_arg_modes[mode])
9171         custom_element_change.action_mode = -1;
9172
9173       // only change if corresponding selectbox has changed
9174       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
9175           action_arg_options[i].options)
9176         custom_element_change.action_arg = -1;
9177
9178       break;
9179     }
9180   }
9181 }
9182
9183 static void setSelectboxSpecialActionOptions(void)
9184 {
9185   int i;
9186
9187   // change action mode and arg selectbox according to action type selectbox
9188   for (i = 0; action_arg_options[i].value != -1; i++)
9189   {
9190     if (action_arg_options[i].value == custom_element_change.action_type)
9191     {
9192       int mode = action_arg_options[i].mode;
9193
9194       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
9195                                    action_arg_modes[mode]);
9196       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
9197                                  custom_element_change.action_mode);
9198
9199       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
9200                                    action_arg_options[i].options);
9201       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
9202                                  custom_element_change.action_arg);
9203       break;
9204     }
9205   }
9206 }
9207
9208 static void copy_custom_element_settings(int element_from, int element_to)
9209 {
9210   struct ElementInfo *ei_from = &element_info[element_from];
9211   struct ElementInfo *ei_to = &element_info[element_to];
9212
9213   copyElementInfo(ei_from, ei_to);
9214 }
9215
9216 static void replace_custom_element_in_settings(int element_from,
9217                                                int element_to)
9218 {
9219   int i, j, x, y;
9220
9221   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9222   {
9223     struct ElementInfo *ei = &element_info[i];
9224
9225     for (y = 0; y < 3; y++)
9226       for (x = 0; x < 3; x++)
9227         if (ei->content.e[x][y] == element_from)
9228           ei->content.e[x][y] = element_to;
9229
9230     for (j = 0; j < ei->num_change_pages; j++)
9231     {
9232       struct ElementChangeInfo *change = &ei->change_page[j];
9233
9234       if (change->target_element == element_from)
9235         change->target_element = element_to;
9236
9237       if (change->initial_trigger_element == element_from)
9238         change->initial_trigger_element = element_to;
9239
9240       if (change->action_element == element_from)
9241         change->action_element = element_to;
9242
9243       for (y = 0; y < 3; y++)
9244         for (x = 0; x < 3; x++)
9245           if (change->target_content.e[x][y] == element_from)
9246             change->target_content.e[x][y] = element_to;
9247     }
9248
9249     if (ei->group != NULL)                              // group or internal
9250       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
9251         if (ei->group->element[j] == element_from)
9252           ei->group->element[j] = element_to;
9253   }
9254 }
9255
9256 static void replace_custom_element_in_playfield(int element_from,
9257                                                 int element_to)
9258 {
9259   int x, y;
9260
9261   for (x = 0; x < lev_fieldx; x++)
9262     for (y = 0; y < lev_fieldy; y++)
9263       if (Tile[x][y] == element_from)
9264         Tile[x][y] = element_to;
9265 }
9266
9267 static boolean CopyCustomElement(int element_old, int element_new,
9268                                  int copy_mode)
9269 {
9270   int copy_mode_orig = copy_mode;
9271
9272   if (copy_mode == GADGET_ID_CUSTOM_COPY)
9273   {
9274     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
9275                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9276     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9277   }
9278   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
9279   {
9280     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
9281                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9282     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9283
9284     level.changed = TRUE;
9285   }
9286   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
9287   {
9288     Request("Please choose custom element!", REQ_CONFIRM);
9289
9290     return FALSE;
9291   }
9292   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
9293   {
9294     Request("Please choose group element!", REQ_CONFIRM);
9295
9296     return FALSE;
9297   }
9298   else if (IS_EMPTY_ELEMENT(element_old) && !IS_EMPTY_ELEMENT(element_new))
9299   {
9300     Request("Please choose empty element!", REQ_CONFIRM);
9301
9302     return FALSE;
9303   }
9304   else
9305   {
9306     level.changed = TRUE;
9307   }
9308
9309   // when modifying custom/group element, ask for copying level template
9310   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
9311   {
9312     if (!AskToCopyAndModifyLevelTemplate())
9313       return FALSE;
9314   }
9315
9316   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
9317   {
9318     copy_custom_element_settings(element_new, element_old);
9319   }
9320   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
9321   {
9322     copy_custom_element_settings(element_old, element_new);
9323   }
9324   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
9325   {
9326     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
9327     copy_custom_element_settings(element_new, element_old);
9328     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
9329
9330     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
9331     replace_custom_element_in_settings(element_new, element_old);
9332     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
9333
9334     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
9335     replace_custom_element_in_playfield(element_new, element_old);
9336     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
9337   }
9338
9339   UpdateCustomElementGraphicGadgets();
9340   DrawPropertiesWindow();
9341
9342   return TRUE;
9343 }
9344
9345 static void CopyCustomElementPropertiesToEditor(int element)
9346 {
9347   int i;
9348   int current_change_page = element_info[element].current_change_page;
9349
9350   // dynamically (re)build selectbox for selecting change page
9351   for (i = 0; i < element_info[element].num_change_pages; i++)
9352   {
9353     sprintf(options_change_page_strings[i], "%d", i + 1);
9354
9355     options_change_page[i].value = i;
9356     options_change_page[i].text = options_change_page_strings[i];
9357   }
9358
9359   options_change_page[i].value = -1;
9360   options_change_page[i].text = NULL;
9361
9362   // needed here to initialize combined element properties
9363   InitElementPropertiesEngine(level.game_version);
9364
9365   element_info[element].change =
9366     &element_info[element].change_page[current_change_page];
9367
9368   custom_element = element_info[element];
9369   custom_element_change = *element_info[element].change;
9370
9371   // needed to initially set selectbox options for special action options
9372   setSelectboxSpecialActionOptions();
9373
9374   // needed to initially set selectbox value variables to reliable defaults
9375   for (i = 0; i < ED_NUM_SELECTBOX; i++)
9376     setSelectboxValue(i, *selectbox_info[i].value);
9377
9378   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9379     custom_element_properties[i] = HAS_PROPERTY(element, i);
9380
9381   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9382     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
9383
9384   // ---------- element settings: configure (custom elements) -----------------
9385
9386   // set accessible layer selectbox help value
9387   custom_element.access_type =
9388     (IS_WALKABLE(element) ? EP_WALKABLE :
9389      IS_PASSABLE(element) ? EP_PASSABLE :
9390      custom_element.access_type);
9391   custom_element.access_layer =
9392     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
9393      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
9394      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
9395      custom_element.access_layer);
9396   custom_element.access_protected =
9397     (IS_PROTECTED(element) ? 1 : 0);
9398   custom_element_properties[EP_ACCESSIBLE] =
9399     (IS_ACCESSIBLE_OVER(element) ||
9400      IS_ACCESSIBLE_INSIDE(element) ||
9401      IS_ACCESSIBLE_UNDER(element));
9402
9403   // set walk-to-object action selectbox help value
9404   custom_element.walk_to_action =
9405     (IS_DIGGABLE(element) ? EP_DIGGABLE :
9406      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
9407      IS_DROPPABLE(element) ? EP_DROPPABLE :
9408      IS_THROWABLE(element) ? EP_THROWABLE :
9409      IS_PUSHABLE(element) ? EP_PUSHABLE :
9410      custom_element.walk_to_action);
9411   custom_element_properties[EP_WALK_TO_OBJECT] =
9412     (IS_DIGGABLE(element) ||
9413      IS_COLLECTIBLE_ONLY(element) ||
9414      IS_DROPPABLE(element) ||
9415      IS_THROWABLE(element) ||
9416      IS_PUSHABLE(element));
9417
9418   // set smash targets selectbox help value
9419   custom_element.smash_targets =
9420     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
9421      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
9422      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
9423      custom_element.smash_targets);
9424   custom_element_properties[EP_CAN_SMASH] =
9425     (CAN_SMASH_EVERYTHING(element) ||
9426      CAN_SMASH_ENEMIES(element) ||
9427      CAN_SMASH_PLAYER(element));
9428
9429   // set deadliness selectbox help value
9430   custom_element.deadliness =
9431     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
9432      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
9433      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
9434      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
9435      custom_element.deadliness);
9436   custom_element_properties[EP_DEADLY] =
9437     (DONT_TOUCH(element) ||
9438      DONT_GET_HIT_BY(element) ||
9439      DONT_COLLIDE_WITH(element) ||
9440      DONT_RUN_INTO(element));
9441
9442   // ---------- element settings: advanced (custom elements) ------------------
9443
9444   // set "change by direct action" selectbox help value
9445   custom_element_change.direct_action =
9446     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
9447      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
9448      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
9449      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
9450      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
9451      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
9452      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
9453      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
9454      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
9455      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
9456      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
9457      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
9458      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
9459      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
9460      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
9461      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
9462      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
9463      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
9464      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
9465      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
9466      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
9467      custom_element_change.direct_action);
9468
9469   // set "change by other element action" selectbox help value
9470   custom_element_change.other_action =
9471     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
9472      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
9473      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
9474      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
9475      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
9476      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
9477      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
9478      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
9479      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
9480      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
9481      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
9482      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
9483      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
9484      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
9485      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
9486      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
9487      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
9488      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
9489      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
9490      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
9491      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
9492      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
9493      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
9494      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
9495      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
9496      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
9497      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
9498      custom_element_change.other_action);
9499 }
9500
9501 static void CopyGroupElementPropertiesToEditor(int element)
9502 {
9503   group_element_info = *element_info[element].group;
9504   custom_element = element_info[element];       // needed for description
9505 }
9506
9507 static void CopyEmptyElementPropertiesToEditor(int element)
9508 {
9509   custom_element = element_info[element];
9510 }
9511
9512 static void CopyClassicElementPropertiesToEditor(int element)
9513 {
9514   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9515     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
9516       getMoveIntoAcidProperty(&level, element);
9517
9518   if (MAYBE_DONT_COLLIDE_WITH(element))
9519     custom_element_properties[EP_DONT_COLLIDE_WITH] =
9520       getDontCollideWithProperty(&level, element);
9521 }
9522
9523 static void CopyElementPropertiesToEditor(int element)
9524 {
9525   if (IS_CUSTOM_ELEMENT(element))
9526     CopyCustomElementPropertiesToEditor(element);
9527   else if (IS_GROUP_ELEMENT(element))
9528     CopyGroupElementPropertiesToEditor(element);
9529   else if (IS_EMPTY_ELEMENT(element))
9530     CopyEmptyElementPropertiesToEditor(element);
9531   else
9532     CopyClassicElementPropertiesToEditor(element);
9533 }
9534
9535 static boolean AskToCopyAndModifyLevelTemplate(void)
9536 {
9537   if (Request("Copy and modify settings from level template?", REQ_ASK))
9538   {
9539     level.use_custom_template = FALSE;
9540
9541     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
9542                  GDI_CHECKED, FALSE, GDI_END);
9543     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
9544                  GDI_CHECKED, FALSE, GDI_END);
9545
9546     return TRUE;
9547   }
9548   else
9549   {
9550     LoadLevelTemplate(-1);      // this resets all element modifications ...
9551
9552     DrawEditModeWindow();       // ... and copies them to 'custom_element'
9553
9554     return FALSE;
9555   }
9556 }
9557
9558 static void CopyCustomElementPropertiesToGame(int element)
9559 {
9560   int i;
9561   int access_type_and_layer;
9562
9563   // mark that this custom element has been modified
9564   custom_element.modified_settings = TRUE;
9565   level.changed = TRUE;
9566
9567   if (level.use_custom_template)
9568     AskToCopyAndModifyLevelTemplate();
9569
9570   element_info[element] = custom_element;
9571   *element_info[element].change = custom_element_change;
9572
9573   // ---------- element settings: configure (custom elements) -----------------
9574
9575   // set accessible property from checkbox and selectbox
9576   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
9577   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
9578   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
9579   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
9580   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
9581   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
9582   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
9583                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
9584                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
9585   custom_element_properties[access_type_and_layer] =
9586     custom_element_properties[EP_ACCESSIBLE];
9587   custom_element_properties[EP_PROTECTED] =
9588     (custom_element.access_protected != 0 &&
9589      custom_element_properties[EP_ACCESSIBLE]);
9590
9591   // set walk-to-object property from checkbox and selectbox
9592   custom_element_properties[EP_DIGGABLE] = FALSE;
9593   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
9594   custom_element_properties[EP_DROPPABLE] = FALSE;
9595   custom_element_properties[EP_THROWABLE] = FALSE;
9596   custom_element_properties[EP_PUSHABLE] = FALSE;
9597   custom_element_properties[custom_element.walk_to_action] =
9598     custom_element_properties[EP_WALK_TO_OBJECT];
9599
9600   // set smash property from checkbox and selectbox
9601   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
9602   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
9603   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
9604   custom_element_properties[custom_element.smash_targets] =
9605     custom_element_properties[EP_CAN_SMASH];
9606
9607   // set deadliness property from checkbox and selectbox
9608   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
9609   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
9610   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
9611   custom_element_properties[EP_DONT_TOUCH] = FALSE;
9612   custom_element_properties[custom_element.deadliness] =
9613     custom_element_properties[EP_DEADLY];
9614
9615   // ---------- element settings: advanced (custom elements) ------------------
9616
9617   // set player change event from checkbox and selectbox
9618   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
9619   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
9620   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
9621   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
9622   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
9623   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
9624   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
9625   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
9626   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
9627   custom_element_change_events[CE_SWITCHED] = FALSE;
9628   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
9629   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
9630   custom_element_change_events[CE_BLOCKED] = FALSE;
9631   custom_element_change_events[CE_IMPACT] = FALSE;
9632   custom_element_change_events[CE_SMASHED] = FALSE;
9633   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
9634   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
9635   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
9636   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
9637   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
9638   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
9639   custom_element_change_events[custom_element_change.direct_action] =
9640     custom_element_change_events[CE_BY_DIRECT_ACTION];
9641
9642   // set other element action change event from checkbox and selectbox
9643   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
9644   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
9645   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
9646   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
9647   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
9648   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
9649   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
9650   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
9651   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
9652   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
9653   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
9654   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
9655   custom_element_change_events[CE_TOUCHING_X] = FALSE;
9656   custom_element_change_events[CE_HITTING_X] = FALSE;
9657   custom_element_change_events[CE_DIGGING_X] = FALSE;
9658   custom_element_change_events[CE_HIT_BY_X] = FALSE;
9659   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
9660   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
9661   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
9662   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
9663   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
9664   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
9665   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
9666   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
9667   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
9668   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
9669   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
9670   custom_element_change_events[custom_element_change.other_action] =
9671     custom_element_change_events[CE_BY_OTHER_ACTION];
9672
9673   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9674     SET_PROPERTY(element, i, custom_element_properties[i]);
9675
9676   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9677     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
9678
9679   // copy change events also to special level editor variable
9680   custom_element = element_info[element];
9681   custom_element_change = *element_info[element].change;
9682
9683   // needed here to restore runtime value "element_info[element].gfx_element"
9684   InitElementPropertiesGfxElement();
9685 }
9686
9687 static void CopyGroupElementPropertiesToGame(int element)
9688 {
9689   // mark that this group element has been modified
9690   custom_element.modified_settings = TRUE;
9691   level.changed = TRUE;
9692
9693   if (level.use_custom_template)
9694     AskToCopyAndModifyLevelTemplate();
9695
9696   element_info[element] = custom_element;
9697   *element_info[element].group = group_element_info;
9698
9699   // needed here to restore runtime value "element_info[element].gfx_element"
9700   InitElementPropertiesGfxElement();
9701 }
9702
9703 static void CopyEmptyElementPropertiesToGame(int element)
9704 {
9705   // mark that this empty element has been modified
9706   custom_element.modified_settings = TRUE;
9707   level.changed = TRUE;
9708
9709   if (level.use_custom_template)
9710     AskToCopyAndModifyLevelTemplate();
9711
9712   element_info[element] = custom_element;
9713
9714   // needed here to restore runtime value "element_info[element].gfx_element"
9715   InitElementPropertiesGfxElement();
9716 }
9717
9718 static void CopyClassicElementPropertiesToGame(int element)
9719 {
9720   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9721     setMoveIntoAcidProperty(&level, element,
9722                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
9723
9724   if (MAYBE_DONT_COLLIDE_WITH(element))
9725     setDontCollideWithProperty(&level, element,
9726                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
9727 }
9728
9729 static void CopyElementPropertiesToGame(int element)
9730 {
9731   if (IS_CUSTOM_ELEMENT(element))
9732     CopyCustomElementPropertiesToGame(element);
9733   else if (IS_GROUP_ELEMENT(element))
9734     CopyGroupElementPropertiesToGame(element);
9735   else if (IS_EMPTY_ELEMENT(element))
9736     CopyEmptyElementPropertiesToGame(element);
9737   else
9738     CopyClassicElementPropertiesToGame(element);
9739 }
9740
9741 #if DEBUG
9742 static void CheckElementDescriptions(void)
9743 {
9744   int i;
9745
9746   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9747     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
9748       Warn("no element description file for element '%s'", EL_NAME(i));
9749 }
9750 #endif
9751
9752 static int getMaxEdFieldX(boolean has_scrollbar)
9753 {
9754   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
9755   int sxsize = SXSIZE - scrollbar_width;
9756   int max_ed_fieldx = sxsize / ed_tilesize;
9757
9758   return max_ed_fieldx;
9759 }
9760
9761 static int getMaxEdFieldY(boolean has_scrollbar)
9762 {
9763   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
9764                          INFOTEXT_YSIZE_FULL : 0);
9765   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
9766   int sysize = SYSIZE - scrollbar_height - infotext_height;
9767   int max_ed_fieldy = sysize / ed_tilesize;
9768
9769   return max_ed_fieldy;
9770 }
9771
9772 static void InitZoomLevelSettings(int zoom_tilesize)
9773 {
9774   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
9775
9776   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
9777   {
9778     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
9779     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
9780
9781     // make sure that tile size is always a power of 2
9782     ed_tilesize = (1 << log_2(ed_tilesize));
9783
9784     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9785     {
9786       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
9787       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
9788     }
9789   }
9790
9791   last_game_engine_type = level.game_engine_type;
9792
9793   // limit zoom tilesize by upper and lower bound
9794   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
9795
9796   // store zoom tilesize in auto setup file only if it was manually changed
9797   if (zoom_tilesize != -1)
9798     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
9799
9800   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
9801   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
9802 }
9803
9804 static void InitDrawingElements(void)
9805 {
9806   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
9807
9808   if (level.game_engine_type == game_engine_type_last)
9809     return;
9810
9811   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
9812   {
9813     new_element1 = EL_BD_WALL;
9814     new_element2 = EL_EMPTY;
9815     new_element3 = EL_BD_SAND;
9816   }
9817   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
9818   {
9819     new_element1 = EL_SP_CHIP_SINGLE;
9820     new_element2 = EL_EMPTY;
9821     new_element3 = EL_SP_BASE;
9822   }
9823   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9824   {
9825     new_element1 = EL_MM_MIRROR_START;
9826     new_element2 = EL_EMPTY;
9827     new_element3 = EL_MM_WOODEN_WALL;
9828   }
9829   else
9830   {
9831     new_element1 = EL_WALL;
9832     new_element2 = EL_EMPTY;
9833     new_element3 = EL_SAND;
9834   }
9835
9836   game_engine_type_last = level.game_engine_type;
9837 }
9838
9839 static void InitLevelSetInfo(void)
9840 {
9841   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
9842            "%s", leveldir_current->name);
9843   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
9844            "%s", leveldir_current->author);
9845
9846   levelset_num_levels = leveldir_current->levels;
9847
9848   levelset_use_levelset_artwork = FALSE;
9849   levelset_copy_level_template = FALSE;
9850
9851   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
9852 }
9853
9854 static void ChangeEditorToLevelSet(char *levelset_subdir)
9855 {
9856   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
9857
9858   // the previous level set might have used custom artwork
9859   ReloadCustomArtwork(0);
9860
9861   LoadLevelSetup_SeriesInfo();
9862
9863   SaveLevelSetup_LastSeries();
9864   SaveLevelSetup_SeriesInfo();
9865
9866   TapeErase();
9867
9868   LoadLevel(level_nr);
9869   LoadScore(level_nr);
9870
9871   DrawLevelEd();
9872 }
9873
9874 static boolean useEditorDoorAnimation(void)
9875 {
9876   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
9877   boolean door_1_viewport_unchanged =
9878     (vp_door_1->x      == DX     &&
9879      vp_door_1->y      == DY     &&
9880      vp_door_1->width  == DXSIZE &&
9881      vp_door_1->height == DYSIZE);
9882   boolean door_1_contains_toolbox =
9883     (EX >= DX &&
9884      EY >= DY &&
9885      EX + EXSIZE <= DX + DXSIZE &&
9886      EY + EYSIZE <= DY + DYSIZE);
9887
9888   return (door_1_viewport_unchanged && door_1_contains_toolbox);
9889 }
9890
9891 static void DrawEditorDoorBackground(int graphic, int x, int y,
9892                                      int width, int height)
9893 {
9894   struct GraphicInfo *g = &graphic_info[graphic];
9895
9896   if (g->bitmap != NULL)
9897     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
9898                MIN(width, g->width), MIN(height, g->height), x, y);
9899   else
9900     ClearRectangle(drawto, x, y, width, height);
9901 }
9902
9903 static void DrawEditorDoorContent(void)
9904 {
9905   // needed for gadgets drawn on background (like palette scrollbar)
9906   SetDoorBackgroundImage(IMG_UNDEFINED);
9907
9908   // copy default editor door content to main double buffer
9909   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
9910
9911   // draw bigger door
9912   DrawSpecialEditorDoor();
9913
9914   // draw new control window
9915   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
9916
9917   // draw all toolbox gadgets to editor doors
9918   MapControlButtons();
9919
9920   // when returning from test game to properties page, redraw toolbox gadgets
9921   if (edit_mode == ED_MODE_PROPERTIES)
9922   {
9923     UnmapLevelEditorToolboxDrawingGadgets();
9924     UnmapLevelEditorToolboxCustomGadgets();
9925
9926     MapLevelEditorToolboxCustomGadgetsIfNeeded();
9927   }
9928
9929   // draw all palette gadgets to editor doors
9930   ModifyEditorElementList();
9931   RedrawDrawingElements();
9932
9933   // copy actual editor door content to door double buffer for OpenDoor()
9934   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
9935 }
9936
9937 void DrawLevelEd(void)
9938 {
9939   int fade_mask = REDRAW_FIELD;
9940
9941   FadeSoundsAndMusic();
9942
9943   if (CheckFadeAll())
9944     fade_mask = REDRAW_ALL;
9945
9946   FadeOut(fade_mask);
9947
9948   // needed if different viewport properties defined for editor
9949   ChangeViewportPropertiesIfNeeded();
9950
9951   ClearField();
9952
9953   InitZoomLevelSettings(-1);
9954   InitDrawingElements();
9955   InitLevelSetInfo();
9956
9957 #if DEBUG
9958   CheckElementDescriptions();
9959 #endif
9960
9961   if (level_editor_test_game)
9962   {
9963     CopyPlayfield(level.field, Tile);
9964     CopyPlayfield(TileBackup, level.field);
9965
9966     level_editor_test_game = FALSE;
9967   }
9968   else
9969   {
9970     edit_mode = ED_MODE_DRAWING;
9971     edit_mode_levelconfig = ED_MODE_LEVELCONFIG_LEVEL;
9972     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
9973
9974     ResetUndoBuffer();
9975
9976     level_xpos = -1;
9977     level_ypos = -1;
9978   }
9979
9980   // redraw_mask |= REDRAW_ALL;
9981
9982   FreeLevelEditorGadgets();
9983   CreateLevelEditorGadgets();
9984
9985   ReinitializeElementList();            // update dynamic level element list
9986   ReinitializeElementListButtons();     // custom element may look different
9987
9988   InitElementPropertiesGfxElement();
9989
9990   UnmapAllGadgets();
9991
9992   DrawEditModeWindow_PlayfieldOnly();
9993
9994   DrawMaskedBorder(fade_mask);
9995
9996   // use door animation if door 1 viewport is unchanged and contains toolbox
9997   if (useEditorDoorAnimation())
9998   {
9999     FadeIn(fade_mask);
10000
10001     DrawEditorDoorContent();
10002
10003     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
10004   }
10005   else
10006   {
10007     DrawEditorDoorContent();
10008
10009     FadeIn(fade_mask);
10010   }
10011
10012   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
10013 }
10014
10015 static void AdjustDrawingAreaGadgets(void)
10016 {
10017   int ed_xsize = lev_fieldx + 2;
10018   int ed_ysize = lev_fieldy + 2;
10019   int max_ed_fieldx = MAX_ED_FIELDX;
10020   int max_ed_fieldy = MAX_ED_FIELDY;
10021   boolean horizontal_scrollbar_needed;
10022   boolean vertical_scrollbar_needed;
10023   int x, y, width, height;
10024
10025   if (suppressBorderElement())
10026   {
10027     ed_xsize = lev_fieldx;
10028     ed_ysize = lev_fieldy;
10029   }
10030
10031   // check if we need any scrollbars
10032   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
10033   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
10034
10035   // check if we have a smaller editor field because of scrollbars
10036   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
10037   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
10038
10039   // check again if we now need more scrollbars because of less space
10040   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
10041   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
10042
10043   // check if editor field gets even smaller after adding new scrollbars
10044   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
10045   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
10046
10047   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
10048   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
10049
10050   x = SX + ed_fieldx * ed_tilesize;
10051   y = SY + ed_fieldy * ed_tilesize;
10052
10053   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
10054   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
10055
10056   // adjust drawing area gadget
10057   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
10058                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
10059                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
10060                GDI_END);
10061
10062   // adjust horizontal scrollbar gadgets
10063   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
10064                GDI_Y, y,
10065                GDI_END);
10066   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
10067                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
10068                GDI_Y, y,
10069                GDI_END);
10070   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
10071                GDI_Y, y,
10072                GDI_WIDTH, width,
10073                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
10074                GDI_END);
10075
10076   // adjust vertical scrollbar gadgets
10077   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
10078                GDI_X, x,
10079                GDI_END);
10080   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
10081                GDI_X, x,
10082                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
10083                GDI_END);
10084   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
10085                GDI_X, x,
10086                GDI_HEIGHT, height,
10087                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
10088                GDI_END);
10089 }
10090
10091 static void AdjustLevelScrollPosition(void)
10092 {
10093   if (level_xpos < -1)
10094     level_xpos = -1;
10095   if (level_xpos > lev_fieldx - ed_fieldx + 1)
10096     level_xpos = lev_fieldx - ed_fieldx + 1;
10097   if (lev_fieldx < ed_fieldx - 2)
10098     level_xpos = -1;
10099
10100   if (level_ypos < -1)
10101     level_ypos = -1;
10102   if (level_ypos > lev_fieldy - ed_fieldy + 1)
10103     level_ypos = lev_fieldy - ed_fieldy + 1;
10104   if (lev_fieldy < ed_fieldy - 2)
10105     level_ypos = -1;
10106
10107   if (suppressBorderElement())
10108   {
10109     level_xpos = 0;
10110     level_ypos = 0;
10111   }
10112 }
10113
10114 static void AdjustEditorScrollbar(int id)
10115 {
10116   struct GadgetInfo *gi = level_editor_gadget[id];
10117   int items_max, items_visible, item_position;
10118
10119   if (id == GADGET_ID_SCROLL_HORIZONTAL)
10120   {
10121     items_max = MAX(lev_fieldx + 2, ed_fieldx);
10122     items_visible = ed_fieldx;
10123     item_position = level_xpos + 1;
10124   }
10125   else
10126   {
10127     items_max = MAX(lev_fieldy + 2, ed_fieldy);
10128     items_visible = ed_fieldy;
10129     item_position = level_ypos + 1;
10130   }
10131
10132   if (item_position > items_max - items_visible)
10133     item_position = items_max - items_visible;
10134
10135   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
10136                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
10137 }
10138
10139 static void AdjustElementListScrollbar(void)
10140 {
10141   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
10142   int items_max, items_visible, item_position;
10143
10144   // correct position of element list scrollbar
10145   if (element_shift < 0)
10146     element_shift = 0;
10147   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
10148     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
10149
10150   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
10151   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
10152   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
10153
10154   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
10155                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
10156                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
10157 }
10158
10159 static void ModifyEditorCounterValue(int counter_id, int new_value)
10160 {
10161   int *counter_value = counterbutton_info[counter_id].value;
10162   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
10163   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10164
10165   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
10166
10167   if (counter_value != NULL)
10168     *counter_value = gi->textinput.number_value;
10169 }
10170
10171 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
10172 {
10173   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
10174   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10175
10176   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
10177
10178   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
10179       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
10180   {
10181     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
10182     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
10183
10184     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
10185     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
10186                  GDI_END);
10187   }
10188 }
10189
10190 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
10191 {
10192   int gadget_id = selectbox_info[selectbox_id].gadget_id;
10193   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10194   int new_index_value = setSelectboxValue(selectbox_id, new_value);
10195
10196   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
10197 }
10198
10199 static void ModifyEditorSelectboxOptions(int selectbox_id,
10200                                          struct ValueTextInfo *options)
10201 {
10202   int gadget_id = selectbox_info[selectbox_id].gadget_id;
10203   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10204
10205   selectbox_info[selectbox_id].options = options;
10206
10207   // set index to zero -- list may be shorter now (correct later, if needed)
10208   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
10209                GDI_SELECTBOX_OPTIONS, options, GDI_END);
10210 }
10211
10212 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
10213 {
10214   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
10215   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10216
10217   drawingarea_info[drawingarea_id].area_xsize = xsize;
10218   drawingarea_info[drawingarea_id].area_ysize = ysize;
10219
10220   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
10221 }
10222
10223 static void ModifyEditorElementList(void)
10224 {
10225   int i;
10226
10227   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
10228     return;
10229
10230   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
10231   {
10232     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
10233     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10234     struct GadgetDesign *gd = &gi->deco.design;
10235     int element = editor_elements[element_shift + i];
10236     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
10237
10238     UnmapGadget(gi);
10239
10240     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
10241
10242     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
10243
10244     MapGadget(gi);
10245   }
10246 }
10247
10248 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
10249 {
10250   int graphic = el2edimg(element);
10251   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
10252
10253   if (pos->x == -1 &&
10254       pos->y == -1)
10255     return;
10256
10257   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
10258 }
10259
10260 static void ModifyDrawingElementButton(int element, int id)
10261 {
10262   struct GadgetInfo *gi = level_editor_gadget[id];
10263   Bitmap *deco_bitmap;
10264   int deco_x, deco_y;
10265   int tile_size = gi->deco.width;
10266
10267   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
10268
10269   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
10270 }
10271
10272 static void PickDrawingElement(int button, int element)
10273 {
10274   struct
10275   {
10276     int *new_element;
10277     struct XYTileSize *pos;
10278     int id;
10279   } de, drawing_elements[] =
10280   {
10281     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
10282     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
10283     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
10284   };
10285
10286   if (button < 1 || button > 3)
10287     return;
10288
10289   if (IS_MM_WALL(element))
10290     element = map_mm_wall_element(element);
10291
10292   de = drawing_elements[button - 1];
10293
10294   *de.new_element = element;    // update global drawing element variable
10295
10296   DrawDrawingElementGraphic(element, de.pos);
10297   ModifyDrawingElementButton(element, de.id);
10298
10299   redraw_mask |= REDRAW_DOOR_1;
10300 }
10301
10302 static void RedrawDrawingElements(void)
10303 {
10304   PickDrawingElement(1, new_element1);
10305   PickDrawingElement(2, new_element2);
10306   PickDrawingElement(3, new_element3);
10307 }
10308
10309 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
10310 {
10311   stick_element_properties_window = FALSE;
10312
10313   SetMainBackgroundImage(IMG_UNDEFINED);
10314   ClearField();
10315
10316   UnmapLevelEditorFieldGadgets();
10317
10318   AdjustDrawingAreaGadgets();
10319   AdjustLevelScrollPosition();
10320   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
10321   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
10322
10323   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10324
10325   MapMainDrawingArea();
10326
10327   if (remap_toolbox_gadgets)
10328   {
10329     UnmapLevelEditorToolboxCustomGadgets();
10330     MapLevelEditorToolboxDrawingGadgets();
10331   }
10332 }
10333
10334 static void DrawDrawingWindow(void)
10335 {
10336   DrawDrawingWindowExt(TRUE);
10337 }
10338
10339 static int getTabulatorBarWidth(void)
10340 {
10341   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10342   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
10343
10344   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
10345 }
10346
10347 static int getTabulatorBarHeight(void)
10348 {
10349   return ED_TAB_BAR_HEIGHT;
10350 }
10351
10352 static Pixel getTabulatorBarColor(void)
10353 {
10354   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10355   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10356   int gd_x = gd->x + gd_gi1->border.width / 2;
10357   int gd_y = gd->y + gd_gi1->height - 1;
10358
10359   return GetPixel(gd->bitmap, gd_x, gd_y);
10360 }
10361
10362 static void DrawLevelConfigTabulatorGadgets(void)
10363 {
10364   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10365   Pixel tab_color = getTabulatorBarColor();
10366   int id_first = ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL;
10367   int id_last  = ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR;
10368   int i;
10369
10370   // draw additional "engine" tabulator when using native BD engine
10371   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
10372     id_last = ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE;
10373
10374   for (i = id_first; i <= id_last; i++)
10375   {
10376     int gadget_id = textbutton_info[i].gadget_id;
10377     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10378     boolean active = (i != edit_mode_levelconfig);
10379
10380     // draw background line below tabulator button
10381     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10382
10383     // draw solid line below inactive tabulator buttons
10384     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10385       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10386                     ED_GADGET_TINY_DISTANCE, tab_color);
10387
10388     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10389     MapTextbuttonGadget(i);
10390   }
10391
10392   // draw little border line below tabulator buttons
10393   if (tab_color != BLACK_PIXEL)                 // black => transparent
10394     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10395                   ED_GADGET_TINY_DISTANCE,
10396                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10397 }
10398
10399 static void DrawPropertiesTabulatorGadgets(void)
10400 {
10401   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10402   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10403   int gd_x = gd->x + gd_gi1->border.width / 2;
10404   int gd_y = gd->y + gd_gi1->height - 1;
10405   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10406   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
10407   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
10408   int i;
10409
10410   // draw two config tabulators for player elements
10411   if (IS_PLAYER_ELEMENT(properties_element))
10412     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
10413
10414   // draw two config and one "change" tabulator for custom elements
10415   if (IS_CUSTOM_ELEMENT(properties_element))
10416     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
10417
10418   for (i = id_first; i <= id_last; i++)
10419   {
10420     int gadget_id = textbutton_info[i].gadget_id;
10421     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10422     boolean active = (i != edit_mode_properties);
10423
10424     // use "config 1" and "config 2" instead of "config" for players and CEs
10425     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
10426         (IS_PLAYER_ELEMENT(properties_element) ||
10427          IS_CUSTOM_ELEMENT(properties_element)))
10428       continue;
10429
10430     // draw background line below tabulator button
10431     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10432
10433     // draw solid line below inactive tabulator buttons
10434     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10435       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10436                     ED_GADGET_TINY_DISTANCE, tab_color);
10437
10438     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10439     MapTextbuttonGadget(i);
10440   }
10441
10442   // draw little border line below tabulator buttons
10443   if (tab_color != BLACK_PIXEL)                 // black => transparent
10444     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10445                   ED_GADGET_TINY_DISTANCE,
10446                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10447 }
10448
10449 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
10450 {
10451   DrawText(SX + xpos, SY + ypos, text, font_nr);
10452 }
10453
10454 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
10455                                            int xpos, int ypos)
10456 {
10457   int font_width = getFontWidth(font_nr);
10458   int font_height = getFontHeight(font_nr);
10459   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
10460   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
10461
10462   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
10463                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
10464                       TRUE, FALSE, FALSE);
10465 }
10466
10467 static void DrawLevelConfigLevel(void)
10468 {
10469   int i;
10470
10471   // draw counter gadgets
10472   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
10473     MapCounterButtons(i);
10474
10475   // draw checkbutton gadgets
10476   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
10477     MapCheckbuttonGadget(i);
10478
10479   // draw selectbox gadgets
10480   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
10481     MapSelectboxGadget(i);
10482
10483   // draw text input gadgets
10484   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
10485     MapTextInputGadget(i);
10486 }
10487
10488 static char *getLevelSubdirFromSaveMode(int save_mode)
10489 {
10490   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
10491     return getNewUserLevelSubdir();
10492
10493   return leveldir_current->subdir;
10494 }
10495
10496 static void DrawLevelConfigLevelSet_DirectoryInfo(void)
10497 {
10498   char *directory_text = "Level set directory:";
10499   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
10500   int font1_nr = FONT_TEXT_1;
10501   int font2_nr = FONT_TEXT_2;
10502   int font1_height = getFontHeight(font1_nr);
10503   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
10504   int x = ED_LEVEL_SETTINGS_X(0);
10505   int y = ED_LEVEL_SETTINGS_Y(6);
10506
10507   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
10508   PrintInfoText(directory_name, font2_nr, x, y);
10509 }
10510
10511 static void DrawLevelConfigLevelSet(void)
10512 {
10513   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
10514   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
10515   int i;
10516
10517   // draw counter gadgets
10518   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
10519     MapCounterButtons(i);
10520
10521   // draw checkbutton gadgets
10522   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
10523   {
10524     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
10525         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
10526         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
10527       continue;
10528
10529     MapCheckbuttonGadget(i);
10530   }
10531
10532   // draw selectbox gadgets
10533   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
10534     MapSelectboxGadget(i);
10535
10536   // draw text input gadgets
10537   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
10538     MapTextInputGadget(i);
10539
10540   // draw textbutton gadgets
10541   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
10542
10543   // draw info text
10544   DrawLevelConfigLevelSet_DirectoryInfo();
10545 }
10546
10547 static void DrawLevelConfigEditor(void)
10548 {
10549   int i;
10550
10551   // draw counter gadgets
10552   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
10553     MapCounterButtons(i);
10554
10555   // draw checkbutton gadgets
10556   for (i = ED_CHECKBUTTON_ID_EDITOR_FIRST; i <= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
10557     MapCheckbuttonGadget(i);
10558
10559   // draw radiobutton gadgets
10560   for (i = ED_RADIOBUTTON_ID_EDITOR_FIRST; i <= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
10561     MapRadiobuttonGadget(i);
10562
10563   // draw drawing area
10564   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
10565
10566   // draw textbutton gadgets
10567   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
10568 }
10569
10570 static void DrawLevelConfigEngine(void)
10571 {
10572   int i;
10573
10574   // draw counter gadgets
10575   if (level.bd_scheduling_type == GD_SCHEDULING_MILLISECONDS)
10576   {
10577     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_MS);
10578     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES);
10579   }
10580   else
10581   {
10582     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_C64);
10583     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS);
10584   }
10585
10586   // draw checkbutton gadgets
10587   for (i = ED_CHECKBUTTON_ID_ENGINE_FIRST; i <= ED_CHECKBUTTON_ID_ENGINE_LAST; i++)
10588     MapCheckbuttonGadget(i);
10589
10590   // draw selectbox gadgets
10591   for (i = ED_SELECTBOX_ID_ENGINE_FIRST; i <= ED_SELECTBOX_ID_ENGINE_LAST; i++)
10592     MapSelectboxGadget(i);
10593 }
10594
10595 static void DrawLevelConfigWindow(void)
10596 {
10597   char *text = "Global Settings";
10598   int font_nr = FONT_TITLE_1;
10599   struct MenuPosInfo *pos = &editor.settings.headline;
10600   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
10601   int sy = SY + pos->y;
10602
10603   stick_element_properties_window = FALSE;
10604
10605   SetAutomaticNumberOfGemsNeeded();
10606
10607   UnmapLevelEditorFieldGadgets();
10608
10609   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10610   ClearField();
10611
10612   DrawText(sx, sy, text, font_nr);
10613
10614   DrawLevelConfigTabulatorGadgets();
10615
10616   if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVEL)
10617     DrawLevelConfigLevel();
10618   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVELSET)
10619     DrawLevelConfigLevelSet();
10620   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_EDITOR)
10621     DrawLevelConfigEditor();
10622   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_ENGINE)
10623     DrawLevelConfigEngine();
10624 }
10625
10626 static void DrawCustomContentArea(void)
10627 {
10628   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
10629   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10630   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
10631   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
10632   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
10633   int xoffset = ED_GADGET_SPACE_DISTANCE;
10634
10635   // add distance for potential left text (without drawing area border)
10636   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
10637
10638   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10639
10640   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
10641 }
10642
10643 static void DrawCustomChangeContentArea(void)
10644 {
10645   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
10646   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10647   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
10648   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
10649   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
10650   int xoffset = ED_GADGET_SPACE_DISTANCE;
10651
10652   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10653
10654   MapDrawingArea(id);
10655 }
10656
10657 static void RemoveElementContentArea(int id, int font_height)
10658 {
10659   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10660
10661   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
10662                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
10663                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10664                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
10665                  ED_GADGET_TEXT_DISTANCE + font_height);
10666 }
10667
10668 static void DrawYamYamContentAreas(void)
10669 {
10670   int font_nr = FONT_TEXT_1;
10671   int font_height = getFontHeight(font_nr);
10672   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10673   int yoffset = (tilesize - font_height) / 2;
10674   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
10675   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
10676   int i;
10677
10678   // display counter to choose number of element content areas
10679   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
10680
10681   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10682   {
10683     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
10684
10685     if (i < level.num_yamyam_contents)
10686     {
10687       MapDrawingArea(id);
10688     }
10689     else
10690     {
10691       UnmapDrawingArea(id);
10692
10693       // delete content areas in case of reducing number of them
10694       RemoveElementContentArea(id, font_height);
10695     }
10696   }
10697
10698   DrawText(x, y + 0 * tilesize, "content", font_nr);
10699   DrawText(x, y + 1 * tilesize, "when",    font_nr);
10700   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
10701 }
10702
10703 static void DrawMagicBallContentAreas(void)
10704 {
10705   int font_nr = FONT_TEXT_1;
10706   int font_height = getFontHeight(font_nr);
10707   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10708   int yoffset = (tilesize - font_height) / 2;
10709   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
10710   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
10711   int i;
10712
10713   // display counter to choose number of element content areas
10714   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
10715
10716   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10717   {
10718     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
10719
10720     if (i < level.num_ball_contents)
10721     {
10722       MapDrawingArea(id);
10723     }
10724     else
10725     {
10726       UnmapDrawingArea(id);
10727
10728       // delete content areas in case of reducing number of them
10729       RemoveElementContentArea(id, font_height);
10730     }
10731   }
10732
10733   DrawText(x, y + 0 * tilesize, "generated", font_nr);
10734   DrawText(x, y + 1 * tilesize, "when",      font_nr);
10735   DrawText(x, y + 2 * tilesize, "active",    font_nr);
10736 }
10737
10738 static void DrawAndroidElementArea(void)
10739 {
10740   int id = ED_DRAWING_ID_ANDROID_CONTENT;
10741   int num_elements = level.num_android_clone_elements;
10742   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10743   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10744   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10745   int xsize = MAX_ANDROID_ELEMENTS;
10746   int ysize = 1;
10747
10748   // display counter to choose number of element areas
10749   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
10750
10751   if (drawingarea_info[id].text_left != NULL)
10752     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10753
10754   UnmapDrawingArea(id);
10755
10756   ModifyEditorDrawingArea(id, num_elements, 1);
10757
10758   // delete content areas in case of reducing number of them
10759   DrawBackground(sx, sy,
10760                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10761                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10762
10763   MapDrawingArea(id);
10764 }
10765
10766 static void DrawGroupElementArea(void)
10767 {
10768   int id = ED_DRAWING_ID_GROUP_CONTENT;
10769   int num_elements = group_element_info.num_elements;
10770   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10771   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10772   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10773   int xsize = MAX_ELEMENTS_IN_GROUP;
10774   int ysize = 1;
10775
10776   if (drawingarea_info[id].text_left != NULL)
10777     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10778
10779   UnmapDrawingArea(id);
10780
10781   ModifyEditorDrawingArea(id, num_elements, 1);
10782
10783   // delete content areas in case of reducing number of them
10784   DrawBackground(sx, sy,
10785                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10786                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10787
10788   MapDrawingArea(id);
10789 }
10790
10791 static void DrawPlayerInitialInventoryArea(int element)
10792 {
10793   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
10794   int player_nr = GET_PLAYER_NR(element);
10795   int num_elements = level.initial_inventory_size[player_nr];
10796   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10797   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10798   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10799   int xsize = MAX_INITIAL_INVENTORY_SIZE;
10800   int ysize = 1;
10801
10802   // determine horizontal position to the right of specified gadget
10803   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
10804     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
10805           ED_DRAWINGAREA_TEXT_DISTANCE);
10806
10807   // determine horizontal offset for leading text
10808   if (drawingarea_info[id].text_left != NULL)
10809     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10810
10811   UnmapDrawingArea(id);
10812
10813   ModifyEditorDrawingArea(id, num_elements, 1);
10814
10815   // delete content areas in case of reducing number of them
10816   DrawBackground(sx, sy,
10817                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10818                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10819
10820   MapDrawingArea(id);
10821 }
10822
10823 static void DrawMMBallContentArea(void)
10824 {
10825   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
10826   int num_elements = level.num_mm_ball_contents;
10827   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10828   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10829   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10830   int xsize = MAX_MM_BALL_CONTENTS;
10831   int ysize = 1;
10832
10833   if (drawingarea_info[id].text_left != NULL)
10834     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10835
10836   UnmapDrawingArea(id);
10837
10838   ModifyEditorDrawingArea(id, num_elements, 1);
10839
10840   // delete content areas in case of reducing number of them
10841   DrawBackground(sx, sy,
10842                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10843                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10844
10845   MapDrawingArea(id);
10846 }
10847
10848 static void DrawEnvelopeTextArea(int envelope_nr)
10849 {
10850   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
10851   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
10852
10853   UnmapGadget(gi);
10854
10855   DrawBackground(gi->x, gi->y,
10856                  gi->textarea.crop_width, gi->textarea.crop_height);
10857
10858   if (envelope_nr != -1)
10859     textarea_info[id].value = level.envelope[envelope_nr].text;
10860
10861   ModifyGadget(gi, GDI_AREA_SIZE,
10862                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
10863                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
10864                GDI_END);
10865
10866   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
10867 }
10868
10869 static void DrawPropertiesInfo(void)
10870 {
10871   static struct
10872   {
10873     int value;
10874     char *text;
10875   }
10876   properties[] =
10877   {
10878     // configurable properties
10879
10880     { EP_WALKABLE_OVER,         "- player can walk over it"             },
10881     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
10882     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
10883     { EP_PASSABLE_OVER,         "- player can pass over it"             },
10884     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
10885     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
10886     { EP_PROTECTED,             "- player is protected by it"           },
10887
10888     { EP_DIGGABLE,              "- can be digged away"                  },
10889     { EP_COLLECTIBLE,           "- can be collected"                    },
10890     { EP_DROPPABLE,             "- can be dropped after collecting"     },
10891     { EP_THROWABLE,             "- can be thrown after collecting"      },
10892     { EP_PUSHABLE,              "- can be pushed"                       },
10893
10894     { EP_CAN_FALL,              "- can fall"                            },
10895     { EP_CAN_MOVE,              "- can move"                            },
10896
10897     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
10898 #if 0
10899     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
10900 #endif
10901     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
10902
10903     { EP_SLIPPERY,              "- slippery for falling elements"       },
10904     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
10905
10906     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
10907     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
10908     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
10909     { EP_DONT_TOUCH,            "- deadly when touching"                },
10910
10911     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
10912
10913     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
10914     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
10915     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
10916
10917     { EP_CAN_CHANGE,            "- can change to other element"         },
10918
10919     // pre-defined properties
10920     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
10921     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
10922     { EP_SWITCHABLE,            "- can be switched"                     },
10923 #if 0
10924     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
10925 #endif
10926
10927     { -1,                       NULL                                    }
10928   };
10929   char *filename = getElementDescriptionFilename(properties_element);
10930   char *num_elements_text = "In this level: ";
10931   char *num_similar_text = "Similar tiles: ";
10932   char *properties_text = "Standard properties: ";
10933   char *description_text = "Description:";
10934   char *no_description_text = "No description available.";
10935   char *none_text = "None";
10936   float percentage;
10937   int num_elements_in_level = 0;
10938   int num_similar_in_level = 0;
10939   int num_hires_tiles_in_level = 0;
10940   int num_standard_properties = 0;
10941   int font1_nr = FONT_TEXT_1;
10942   int font2_nr = FONT_TEXT_2;
10943   int font1_width = getFontWidth(font1_nr);
10944   int font1_height = getFontHeight(font1_nr);
10945   int font2_height = getFontHeight(font2_nr);
10946   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
10947   int font2_yoffset = (font1_height - font2_height) / 2;
10948   int num_elements_text_len = strlen(num_elements_text) * font1_width;
10949   int num_similar_text_len = strlen(num_similar_text) * font1_width;
10950   int properties_text_len = strlen(properties_text) * font1_width;
10951   int xpos = ED_ELEMENT_SETTINGS_X(0);
10952   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10953   int i, x, y;
10954
10955   if (setup.editor.show_element_token)
10956   {
10957     int font3_nr = FONT_TEXT_3;
10958     int font3_height = getFontHeight(font3_nr);
10959
10960     DrawTextF(xpos, ypos, font3_nr,
10961               "[%s]", element_info[properties_element].token_name);
10962
10963     ypos += 2 * font3_height;
10964   }
10965
10966   // ----- print number of elements / percentage of this element in level
10967
10968   for (y = 0; y < lev_fieldy; y++)
10969   {
10970     for (x = 0; x < lev_fieldx; x++)
10971     {
10972       if (Tile[x][y] == properties_element)
10973       {
10974         num_elements_in_level++;
10975       }
10976       else if (IS_MM_WALL(Tile[x][y]) &&
10977                map_mm_wall_element(Tile[x][y]) == properties_element)
10978       {
10979         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
10980       }
10981     }
10982   }
10983
10984   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10985
10986   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
10987
10988   if (num_hires_tiles_in_level > 0)
10989     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10990               "%d wall tiles", num_hires_tiles_in_level);
10991   else if (num_elements_in_level > 0)
10992     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10993               "%d (%.2f %%)", num_elements_in_level, percentage);
10994   else
10995     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10996               none_text);
10997
10998   // ----- print number of similar elements / percentage of them in level
10999
11000   for (y = 0; y < lev_fieldy; y++)
11001   {
11002     for (x = 0; x < lev_fieldx; x++)
11003     {
11004       if (strEqual(element_info[Tile[x][y]].class_name,
11005                    element_info[properties_element].class_name))
11006       {
11007         num_similar_in_level++;
11008       }
11009     }
11010   }
11011
11012   if (num_similar_in_level != num_elements_in_level)
11013   {
11014     ypos += 1 * MAX(font1_height, font2_height);
11015
11016     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
11017
11018     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
11019
11020     if (num_similar_in_level > 0)
11021       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
11022                 "%d (%.2f %%)", num_similar_in_level, percentage);
11023     else
11024       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
11025                 none_text);
11026   }
11027
11028   ypos += 2 * MAX(font1_height, font2_height);
11029
11030   // ----- print standard properties of this element
11031
11032   DrawTextS(xpos, ypos, font1_nr, properties_text);
11033
11034   ypos += line1_height;
11035
11036   for (i = 0; properties[i].value != -1; i++)
11037   {
11038     if (!HAS_PROPERTY(properties_element, properties[i].value))
11039       continue;
11040
11041     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
11042
11043     ypos += font2_height;
11044
11045     num_standard_properties++;
11046   }
11047
11048   if (num_standard_properties == 0)
11049   {
11050     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
11051               font2_nr, none_text);
11052
11053     ypos -= (line1_height - font1_height);
11054   }
11055
11056   ypos += MAX(font1_height, font2_height);
11057
11058   // ----- print special description of this element
11059
11060   PrintInfoText(description_text, font1_nr, xpos, ypos);
11061
11062   ypos += line1_height;
11063
11064   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
11065     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
11066 }
11067
11068 #define TEXT_COLLECTING         "Score for collecting"
11069 #define TEXT_COLLECTING_EXTRA   "Score for extra diamonds"
11070 #define TEXT_SMASHING           "Score for smashing"
11071 #define TEXT_SLURPING           "Score for slurping robot"
11072 #define TEXT_CRACKING           "Score for cracking"
11073 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
11074 #define TEXT_AMOEBA_THRESHOED   "Size for turning to rocks"
11075 #define TEXT_AMOEBA_SLOW_TIME   "Slow growth time (seconds)"
11076 #define TEXT_AMOEBA_SLOW_RATE   "Slow growth rate (percent)"
11077 #define TEXT_AMOEBA_FAST_RATE   "Fast growth rate (percent)"
11078 #define TEXT_DURATION           "Duration when activated"
11079 #define TEXT_DELAY_ON           "Delay before activating"
11080 #define TEXT_DELAY_OFF          "Delay before deactivating"
11081 #define TEXT_DELAY_CHANGING     "Delay before changing"
11082 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
11083 #define TEXT_DELAY_MOVING       "Delay before moving"
11084 #define TEXT_BALL_DELAY         "Element generation delay"
11085 #define TEXT_MOVE_SPEED         "Speed of android moving"
11086 #define TEXT_CLONE_SPEED        "Speed of android cloning"
11087 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
11088 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
11089 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
11090 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
11091 #define TEXT_TIME_BONUS         "Extra time to solve level"
11092 #define TEXT_TIME_PENALTY       "Time penalty if destroyed"
11093 #define TEXT_PERMEABILITY_RATE  "slime permeability rate"
11094 #define TEXT_PERMEABILITY_BITS  "slime permeability bits"
11095 #define TEXT_RANDOM_SEED        "slime random number seed"
11096 #define TEXT_ACID_SPREAD_RATE   "Spread rate (percent)"
11097 #define TEXT_BITER_MOVE_DELAY   "Move delay (BD frames)"
11098 #define TEXT_REPLICATION_DELAY  "Create delay (BD frames)"
11099
11100 static struct
11101 {
11102   int element;
11103   int *value;
11104   char *text;
11105   int min_value;
11106   int max_value;
11107 } elements_with_counter[] =
11108 {
11109   { EL_EMERALD,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11110   { EL_BD_DIAMOND,              &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11111   { EL_BD_DIAMOND,              &level.score[SC_DIAMOND_EXTRA],         TEXT_COLLECTING_EXTRA   },
11112   { EL_EMERALD_YELLOW,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11113   { EL_EMERALD_RED,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11114   { EL_EMERALD_PURPLE,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11115   { EL_SP_INFOTRON,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11116   { EL_DIAMOND,                 &level.score[SC_DIAMOND],               TEXT_COLLECTING         },
11117   { EL_CRYSTAL,                 &level.score[SC_CRYSTAL],               TEXT_COLLECTING         },
11118   { EL_PEARL,                   &level.score[SC_PEARL],                 TEXT_COLLECTING         },
11119   { EL_BUG,                     &level.score[SC_BUG],                   TEXT_SMASHING           },
11120   { EL_BUG_RIGHT,               &level.score[SC_BUG],                   TEXT_SMASHING           },
11121   { EL_BUG_UP,                  &level.score[SC_BUG],                   TEXT_SMASHING           },
11122   { EL_BUG_LEFT,                &level.score[SC_BUG],                   TEXT_SMASHING           },
11123   { EL_BUG_DOWN,                &level.score[SC_BUG],                   TEXT_SMASHING           },
11124   { EL_BD_BUTTERFLY,            &level.score[SC_BUG],                   TEXT_SMASHING           },
11125   { EL_BD_BUTTERFLY_RIGHT,      &level.score[SC_BUG],                   TEXT_SMASHING           },
11126   { EL_BD_BUTTERFLY_UP,         &level.score[SC_BUG],                   TEXT_SMASHING           },
11127   { EL_BD_BUTTERFLY_LEFT,       &level.score[SC_BUG],                   TEXT_SMASHING           },
11128   { EL_BD_BUTTERFLY_DOWN,       &level.score[SC_BUG],                   TEXT_SMASHING           },
11129   { EL_SP_ELECTRON,             &level.score[SC_BUG],                   TEXT_SMASHING           },
11130   { EL_SPACESHIP,               &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11131   { EL_SPACESHIP_RIGHT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11132   { EL_SPACESHIP_UP,            &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11133   { EL_SPACESHIP_LEFT,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11134   { EL_SPACESHIP_DOWN,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11135   { EL_BD_FIREFLY,              &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11136   { EL_BD_FIREFLY_RIGHT,        &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11137   { EL_BD_FIREFLY_UP,           &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11138   { EL_BD_FIREFLY_LEFT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11139   { EL_BD_FIREFLY_DOWN,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11140   { EL_SP_SNIKSNAK,             &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
11141   { EL_YAMYAM,                  &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11142   { EL_YAMYAM_LEFT,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11143   { EL_YAMYAM_RIGHT,            &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11144   { EL_YAMYAM_UP,               &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11145   { EL_YAMYAM_DOWN,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11146   { EL_DARK_YAMYAM,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
11147   { EL_ROBOT,                   &level.score[SC_ROBOT],                 TEXT_SMASHING           },
11148   { EL_PACMAN,                  &level.score[SC_PACMAN],                TEXT_SMASHING           },
11149   { EL_PACMAN_RIGHT,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
11150   { EL_PACMAN_UP,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
11151   { EL_PACMAN_LEFT,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
11152   { EL_PACMAN_DOWN,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
11153   { EL_NUT,                     &level.score[SC_NUT],                   TEXT_CRACKING           },
11154   { EL_DYNAMITE,                &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11155   { EL_EM_DYNAMITE,             &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11156   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11157   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11158   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11159   { EL_SHIELD_NORMAL,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
11160   { EL_SHIELD_DEADLY,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
11161   { EL_EXTRA_TIME,              &level.extra_time_score,                TEXT_COLLECTING         },
11162   { EL_KEY_1,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11163   { EL_KEY_2,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11164   { EL_KEY_3,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11165   { EL_KEY_4,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11166   { EL_EM_KEY_1,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11167   { EL_EM_KEY_2,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11168   { EL_EM_KEY_3,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11169   { EL_EM_KEY_4,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11170   { EL_EMC_KEY_5,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11171   { EL_EMC_KEY_6,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11172   { EL_EMC_KEY_7,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11173   { EL_EMC_KEY_8,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11174   { EL_DC_KEY_WHITE,            &level.score[SC_KEY],                   TEXT_COLLECTING         },
11175   { EL_MM_KETTLE,               &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11176   { EL_DF_CELL,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11177   { EL_MM_KEY,                  &level.score[SC_KEY],                   TEXT_COLLECTING         },
11178   { EL_MM_LIGHTBALL,            &level.score[SC_ELEM_BONUS],            TEXT_COLLECTING         },
11179   { EL_MM_PACMAN,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
11180   { EL_MM_PACMAN_RIGHT,         &level.score[SC_PACMAN],                TEXT_SMASHING           },
11181   { EL_MM_PACMAN_UP,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
11182   { EL_MM_PACMAN_LEFT,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
11183   { EL_MM_PACMAN_DOWN,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
11184   { EL_AMOEBA_WET,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11185   { EL_AMOEBA_DRY,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11186   { EL_AMOEBA_FULL,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11187   { EL_BD_AMOEBA,               &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11188   { EL_EMC_DRIPPER,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11189   { EL_BD_AMOEBA,               &level.bd_amoeba_threshold_too_big,     TEXT_AMOEBA_THRESHOED   },
11190   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_time,      TEXT_AMOEBA_SLOW_TIME   },
11191   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_rate,      TEXT_AMOEBA_SLOW_RATE,
11192                                 0, 100                                                          },
11193   { EL_BD_AMOEBA,               &level.bd_amoeba_fast_growth_rate,      TEXT_AMOEBA_FAST_RATE,
11194                                 0, 100                                                          },
11195   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_threshold_too_big,   TEXT_AMOEBA_THRESHOED   },
11196   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_time,    TEXT_AMOEBA_SLOW_TIME   },
11197   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_rate,    TEXT_AMOEBA_SLOW_RATE,
11198                                 0, 100                                                          },
11199   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_fast_growth_rate,    TEXT_AMOEBA_FAST_RATE,
11200                                 0, 100                                                          },
11201   { EL_MAGIC_WALL,              &level.time_magic_wall,                 TEXT_DURATION           },
11202   { EL_BD_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
11203   { EL_DC_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
11204   { EL_ROBOT_WHEEL,             &level.time_wheel,                      TEXT_DURATION           },
11205   { EL_TIMEGATE_SWITCH,         &level.time_timegate,                   TEXT_DURATION           },
11206   { EL_DC_TIMEGATE_SWITCH,      &level.time_timegate,                   TEXT_DURATION           },
11207   { EL_LIGHT_SWITCH,            &level.time_light,                      TEXT_DURATION           },
11208   { EL_LIGHT_SWITCH_ACTIVE,     &level.time_light,                      TEXT_DURATION           },
11209   { EL_SHIELD_NORMAL,           &level.shield_normal_time,              TEXT_DURATION           },
11210   { EL_SHIELD_DEADLY,           &level.shield_deadly_time,              TEXT_DURATION           },
11211   { EL_BD_CLOCK,                &level.bd_clock_extra_time,             TEXT_TIME_BONUS,
11212                                 -100, 100                                                       },
11213   { EL_BD_VOODOO_DOLL,          &level.bd_voodoo_penalty_time,          TEXT_TIME_PENALTY,
11214                                 0, 100                                                          },
11215   { EL_BD_SLIME,                &level.bd_slime_permeability_rate,      TEXT_PERMEABILITY_RATE,
11216                                 0, 100                                                          },
11217   { EL_BD_SLIME,                &level.bd_slime_permeability_bits_c64,  TEXT_PERMEABILITY_BITS,
11218                                 0, 255                                                          },
11219   { EL_BD_SLIME,                &level.bd_slime_random_seed_c64,        TEXT_RANDOM_SEED,
11220                                 -1, 65535                                                       },
11221   { EL_BD_ACID,                 &level.bd_acid_spread_rate,             TEXT_ACID_SPREAD_RATE,
11222                                 0, 100                                                          },
11223   { EL_BD_BITER,                &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11224                                 0, 3                                                            },
11225   { EL_BD_BITER_RIGHT,          &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11226                                 0, 3                                                            },
11227   { EL_BD_BITER_UP,             &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11228                                 0, 3                                                            },
11229   { EL_BD_BITER_LEFT,           &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11230                                 0, 3                                                            },
11231   { EL_BD_BITER_DOWN,           &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11232                                 0, 3                                                            },
11233   { EL_BD_REPLICATOR,           &level.bd_replicator_create_delay,      TEXT_REPLICATION_DELAY,
11234                                 0, 100                                                          },
11235   { EL_EXTRA_TIME,              &level.extra_time,                      TEXT_TIME_BONUS         },
11236   { EL_TIME_ORB_FULL,           &level.time_orb_time,                   TEXT_TIME_BONUS         },
11237   { EL_GAME_OF_LIFE,            &level.game_of_life[0],                 TEXT_GAME_OF_LIFE_1,0,8 },
11238   { EL_GAME_OF_LIFE,            &level.game_of_life[1],                 TEXT_GAME_OF_LIFE_2,0,8 },
11239   { EL_GAME_OF_LIFE,            &level.game_of_life[2],                 TEXT_GAME_OF_LIFE_3,0,8 },
11240   { EL_GAME_OF_LIFE,            &level.game_of_life[3],                 TEXT_GAME_OF_LIFE_4,0,8 },
11241   { EL_BIOMAZE,                 &level.biomaze[0],                      TEXT_GAME_OF_LIFE_1,0,8 },
11242   { EL_BIOMAZE,                 &level.biomaze[1],                      TEXT_GAME_OF_LIFE_2,0,8 },
11243   { EL_BIOMAZE,                 &level.biomaze[2],                      TEXT_GAME_OF_LIFE_3,0,8 },
11244   { EL_BIOMAZE,                 &level.biomaze[3],                      TEXT_GAME_OF_LIFE_4,0,8 },
11245   { EL_EMC_ANDROID,             &level.android_move_time,               TEXT_MOVE_SPEED         },
11246   { EL_EMC_ANDROID,             &level.android_clone_time,              TEXT_CLONE_SPEED        },
11247   { EL_EMC_MAGIC_BALL,          &level.ball_time,                       TEXT_BALL_DELAY         },
11248   { EL_EMC_LENSES,              &level.lenses_score,                    TEXT_COLLECTING         },
11249   { EL_EMC_MAGNIFIER,           &level.magnify_score,                   TEXT_COLLECTING         },
11250   { EL_SPRING,                  &level.slurp_score,                     TEXT_SLURPING           },
11251   { EL_SPRING_LEFT,             &level.slurp_score,                     TEXT_SLURPING           },
11252   { EL_SPRING_RIGHT,            &level.slurp_score,                     TEXT_SLURPING           },
11253   { EL_EMC_LENSES,              &level.lenses_time,                     TEXT_DURATION           },
11254   { EL_EMC_MAGNIFIER,           &level.magnify_time,                    TEXT_DURATION           },
11255   { EL_MM_FUSE_ACTIVE,          &level.mm_time_fuse,                    TEXT_DELAY_OFF          },
11256   { EL_MM_BOMB,                 &level.mm_time_bomb,                    TEXT_DELAY_EXPLODING    },
11257   { EL_MM_GRAY_BALL,            &level.mm_time_ball,                    TEXT_DELAY_CHANGING     },
11258   { EL_MM_STEEL_BLOCK,          &level.mm_time_block,                   TEXT_DELAY_MOVING       },
11259   { EL_MM_WOODEN_BLOCK,         &level.mm_time_block,                   TEXT_DELAY_MOVING       },
11260
11261   { -1,                         NULL,                                   NULL                    }
11262 };
11263
11264 static boolean checkPropertiesConfig(int element)
11265 {
11266   int i;
11267
11268   // special case: empty space customization only available in R'n'D game engine
11269   if (element == EL_EMPTY_SPACE && level.game_engine_type != GAME_ENGINE_TYPE_RND)
11270     return FALSE;
11271
11272   // special case: BD style rock customization only available in BD game engine
11273   if (element == EL_BD_ROCK && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11274     return FALSE;
11275
11276   if (IS_GEM(element) ||
11277       IS_CUSTOM_ELEMENT(element) ||
11278       IS_GROUP_ELEMENT(element) ||
11279       IS_EMPTY_ELEMENT(element) ||
11280       IS_BALLOON_ELEMENT(element) ||
11281       IS_ENVELOPE(element) ||
11282       IS_MM_ENVELOPE(element) ||
11283       IS_MM_MCDUFFIN(element) ||
11284       IS_DF_LASER(element) ||
11285       IS_PLAYER_ELEMENT(element) ||
11286       IS_BD_PLAYER_ELEMENT(element) ||
11287       IS_BD_EXPANDABLE_WALL(properties_element) ||
11288       IS_BD_CONVEYOR_BELT(properties_element) ||
11289       IS_BD_CONVEYOR_BELT_SWITCH(properties_element) ||
11290       IS_SOKOBAN_OBJECT_OR_FIELD(element) ||
11291       HAS_EDITOR_CONTENT(element) ||
11292       CAN_GROW(element) ||
11293       COULD_MOVE_INTO_ACID(element) ||
11294       MAYBE_DONT_COLLIDE_WITH(element) ||
11295       element == EL_BD_ROCK ||
11296       element == EL_BD_MEGA_ROCK ||
11297       element == EL_BD_SWEET ||
11298       element == EL_BD_VOODOO_DOLL ||
11299       element == EL_BD_WATER)
11300   {
11301     return TRUE;
11302   }
11303   else
11304   {
11305     for (i = 0; elements_with_counter[i].element != -1; i++)
11306       if (elements_with_counter[i].element == element)
11307         return TRUE;
11308   }
11309
11310   return FALSE;
11311 }
11312
11313 static void SetAutomaticNumberOfGemsNeeded(void)
11314 {
11315   int x, y;
11316
11317   if (!level.auto_count_gems)
11318     return;
11319
11320   level.gems_needed = 0;
11321
11322   for (x = 0; x < lev_fieldx; x++)
11323   {
11324     for (y = 0; y < lev_fieldy; y++)
11325     {
11326       int element = Tile[x][y];
11327
11328       switch (element)
11329       {
11330         case EL_EMERALD:
11331         case EL_EMERALD_YELLOW:
11332         case EL_EMERALD_RED:
11333         case EL_EMERALD_PURPLE:
11334         case EL_BD_DIAMOND:
11335         case EL_WALL_EMERALD:
11336         case EL_WALL_EMERALD_YELLOW:
11337         case EL_WALL_EMERALD_RED:
11338         case EL_WALL_EMERALD_PURPLE:
11339         case EL_WALL_BD_DIAMOND:
11340         case EL_NUT:
11341         case EL_SP_INFOTRON:
11342         case EL_MM_KETTLE:
11343         case EL_DF_CELL:
11344           level.gems_needed++;
11345           break;
11346
11347         case EL_DIAMOND:
11348         case EL_WALL_DIAMOND:
11349           level.gems_needed += 3;
11350           break;
11351
11352         case EL_PEARL:
11353         case EL_WALL_PEARL:
11354           level.gems_needed += 5;
11355           break;
11356
11357         case EL_CRYSTAL:
11358         case EL_WALL_CRYSTAL:
11359           level.gems_needed += 8;
11360           break;
11361
11362         default:
11363           break;
11364       }
11365     }
11366   }
11367
11368   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
11369 }
11370
11371 static void DrawPropertiesConfig(void)
11372 {
11373   boolean draw_footer_line = FALSE;
11374   int max_num_element_counters = 4;
11375   int num_element_counters = 0;
11376   int i;
11377
11378   if (!checkPropertiesConfig(properties_element))
11379   {
11380     int xpos = ED_ELEMENT_SETTINGS_X(0);
11381     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
11382
11383     PrintInfoText("No configuration options available.", FONT_TEXT_1, xpos, ypos);
11384
11385     return;
11386   }
11387
11388   // check if there are elements where a value can be chosen for
11389   for (i = 0; elements_with_counter[i].element != -1; i++)
11390   {
11391     if (elements_with_counter[i].element != properties_element)
11392       continue;
11393
11394     // special case: score for extra diamonds only available in BD game engine
11395     if (elements_with_counter[i].element == EL_BD_DIAMOND &&
11396         elements_with_counter[i].value == &level.score[SC_DIAMOND_EXTRA] &&
11397         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11398       continue;
11399
11400     // special case: some amoeba counters only available in BD game engine
11401     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11402         elements_with_counter[i].value != &level.amoeba_speed &&
11403         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11404       continue;
11405
11406     // special case: some amoeba counters only available in R'n'D game engine
11407     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11408         elements_with_counter[i].value == &level.amoeba_speed &&
11409         level.game_engine_type == GAME_ENGINE_TYPE_BD)
11410       continue;
11411
11412     int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
11413
11414     counterbutton_info[counter_id].y =
11415       ED_ELEMENT_SETTINGS_YPOS((HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
11416                                (CAN_GROW(properties_element)                ? 1 : 0) +
11417                                (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
11418                                (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
11419                                (properties_element == EL_BD_VOODOO_DOLL     ? 4 : 0) +
11420                                (properties_element == EL_BD_SLIME           ? 1 : 0) +
11421                                (properties_element == EL_BD_ACID            ? 1 : 0) +
11422                                (properties_element == EL_BD_REPLICATOR      ? 1 : 0) +
11423                                (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
11424                                num_element_counters);
11425
11426     // special case: set amoeba counters for BD game engine separately
11427     if ((properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD) ||
11428         (properties_element == EL_BD_AMOEBA_2))
11429       counterbutton_info[counter_id].y = ED_ELEMENT_SETTINGS_YPOS(3 + num_element_counters);
11430
11431     counterbutton_info[counter_id].value      = elements_with_counter[i].value;
11432     counterbutton_info[counter_id].text_right = elements_with_counter[i].text;
11433     counterbutton_info[counter_id].min_value  = elements_with_counter[i].min_value;
11434     counterbutton_info[counter_id].max_value  = elements_with_counter[i].max_value;
11435
11436     // default: counter values between 0 and 999
11437     if (counterbutton_info[counter_id].max_value == 0)
11438       counterbutton_info[counter_id].max_value = 999;
11439
11440     MapCounterButtons(counter_id);
11441
11442     num_element_counters++;
11443     if (num_element_counters >= max_num_element_counters)
11444       break;
11445   }
11446
11447   if (HAS_EDITOR_CONTENT(properties_element))
11448   {
11449     // draw stickybutton gadget
11450     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11451
11452     if (properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11453     {
11454       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11455       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11456
11457       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG);
11458       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED);
11459     }
11460     else if (properties_element == EL_BD_AMOEBA_2)
11461     {
11462       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11463       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11464       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA);
11465
11466       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG);
11467       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED);
11468       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING);
11469       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE);
11470     }
11471     else if (IS_AMOEBOID(properties_element))
11472       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
11473     else if (properties_element == EL_BD_ACID)
11474     {
11475       MapDrawingArea(ED_DRAWING_ID_BD_ACID_EATS_ELEMENT);
11476       MapDrawingArea(ED_DRAWING_ID_BD_ACID_TURNS_TO_ELEMENT);
11477     }
11478     else if (IS_BD_BITER(properties_element))
11479     {
11480       MapDrawingArea(ED_DRAWING_ID_BD_BITER_EATS_ELEMENT);
11481     }
11482     else if (properties_element == EL_BD_BLADDER)
11483     {
11484       MapDrawingArea(ED_DRAWING_ID_BD_BLADDER_CONVERTS_BY_ELEMENT);
11485     }
11486     else if (properties_element == EL_YAMYAM ||
11487              properties_element == EL_YAMYAM_LEFT ||
11488              properties_element == EL_YAMYAM_RIGHT ||
11489              properties_element == EL_YAMYAM_UP ||
11490              properties_element == EL_YAMYAM_DOWN)
11491       DrawYamYamContentAreas();
11492     else if (properties_element == EL_EMC_MAGIC_BALL)
11493     {
11494       DrawMagicBallContentAreas();
11495
11496       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
11497       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
11498     }
11499     else if (properties_element == EL_EMC_ANDROID)
11500       DrawAndroidElementArea();
11501     else if (properties_element == EL_MM_GRAY_BALL)
11502     {
11503       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
11504       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
11505       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
11506       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
11507
11508       DrawMMBallContentArea();
11509     }
11510   }
11511
11512   if (IS_PLAYER_ELEMENT(properties_element))
11513   {
11514     int player_nr = GET_PLAYER_NR(properties_element);
11515
11516     // these properties can be set for every player individually
11517
11518     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11519     {
11520       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
11521         &level.start_element[player_nr];
11522       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
11523         &level.artwork_element[player_nr];
11524       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
11525         &level.explosion_element[player_nr];
11526
11527       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
11528         &level.use_start_element[player_nr];
11529       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
11530         &level.use_artwork_element[player_nr];
11531       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
11532         &level.use_explosion_element[player_nr];
11533       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
11534         &level.initial_player_gravity[player_nr];
11535
11536       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
11537         &level.initial_player_stepsize[player_nr];
11538
11539       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
11540       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
11541                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
11542                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
11543       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
11544       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
11545       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
11546       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
11547       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
11548       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
11549       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
11550       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
11551       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
11552       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
11553       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
11554
11555       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
11556       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
11557       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
11558
11559       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
11560     }
11561     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11562     {
11563       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
11564         &level.initial_inventory_content[player_nr][0];
11565
11566       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
11567         &level.initial_inventory_size[player_nr];
11568
11569       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
11570         &level.use_initial_inventory[player_nr];
11571
11572       // draw checkbutton gadgets
11573       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
11574       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
11575       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
11576
11577       // draw counter gadgets
11578       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
11579
11580       // draw drawing area gadgets
11581       DrawPlayerInitialInventoryArea(properties_element);
11582     }
11583   }
11584
11585   if (IS_BD_PLAYER_ELEMENT(properties_element))
11586   {
11587     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11588       ED_ELEMENT_SETTINGS_YPOS(2);
11589     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11590       ED_ELEMENT_SETTINGS_YPOS(3);
11591     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11592       ED_ELEMENT_SETTINGS_YPOS(4);
11593
11594     // draw checkbutton gadgets
11595     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS);
11596     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE);
11597     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11598
11599     // draw counter gadgets
11600     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11601     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11602
11603     // draw drawing area gadgets
11604     MapDrawingArea(ED_DRAWING_ID_BD_SNAP_ELEMENT);
11605   }
11606
11607   if (properties_element == EL_BD_ROCK && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11608   {
11609     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11610       ED_ELEMENT_SETTINGS_YPOS(0);
11611     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11612       ED_ELEMENT_SETTINGS_YPOS(1);
11613
11614     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11615     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11616   }
11617
11618   if (properties_element == EL_BD_MEGA_ROCK ||
11619       properties_element == EL_BD_SWEET)
11620   {
11621     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11622       ED_ELEMENT_SETTINGS_YPOS(0);
11623     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11624       ED_ELEMENT_SETTINGS_YPOS(1);
11625
11626     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11627     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11628   }
11629
11630   if (properties_element == EL_BD_VOODOO_DOLL)
11631   {
11632     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS);
11633     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER);
11634     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK);
11635     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION);
11636   }
11637
11638   if (properties_element == EL_BD_SLIME)
11639   {
11640     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE);
11641   }
11642
11643   if (properties_element == EL_BD_MAGIC_WALL)
11644   {
11645     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING);
11646     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA);
11647   }
11648
11649   if (IS_BD_EXPANDABLE_WALL(properties_element))
11650   {
11651     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_CHANGE_EXPANDING_WALL);
11652   }
11653
11654   if (properties_element == EL_BD_REPLICATOR)
11655   {
11656     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_REPLICATORS_ACTIVE);
11657   }
11658
11659   if (IS_BD_CONVEYOR_BELT(properties_element) ||
11660       IS_BD_CONVEYOR_BELT_SWITCH(properties_element))
11661   {
11662     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_ACTIVE);
11663     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_CHANGED);
11664   }
11665
11666   if (properties_element == EL_BD_WATER)
11667   {
11668     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_WATER_CANNOT_FLOW_DOWN);
11669   }
11670
11671   // special case: slippery walls option for gems only available in R'n'D game engine
11672   if (IS_GEM(properties_element) && level.game_engine_type == GAME_ENGINE_TYPE_RND)
11673     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
11674
11675   if (properties_element == EL_EM_DYNAMITE)
11676     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
11677
11678   if (COULD_MOVE_INTO_ACID(properties_element) &&
11679       !IS_PLAYER_ELEMENT(properties_element) &&
11680       (!IS_CUSTOM_ELEMENT(properties_element) ||
11681        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
11682   {
11683     // set position for checkbutton for "can move into acid"
11684     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
11685       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
11686     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
11687       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
11688                                IS_BALLOON_ELEMENT(properties_element) ||
11689                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11690
11691     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
11692   }
11693
11694   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
11695     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
11696
11697   if (properties_element == EL_SPRING ||
11698       properties_element == EL_SPRING_LEFT ||
11699       properties_element == EL_SPRING_RIGHT)
11700     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
11701
11702   if (properties_element == EL_TIME_ORB_FULL)
11703     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
11704
11705   if (properties_element == EL_GAME_OF_LIFE ||
11706       properties_element == EL_BIOMAZE)
11707     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
11708
11709   if (CAN_GROW(properties_element) && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11710   {
11711     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
11712       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11713
11714     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
11715   }
11716
11717   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
11718     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
11719
11720   if (properties_element == EL_SOKOBAN_OBJECT)
11721     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
11722
11723   if (properties_element == EL_SOKOBAN_OBJECT ||
11724       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
11725       properties_element == EL_SOKOBAN_FIELD_FULL)
11726   {
11727     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
11728       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
11729                                0 : 1);
11730
11731     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
11732   }
11733
11734   if (IS_BALLOON_ELEMENT(properties_element))
11735     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
11736
11737   if (IS_ENVELOPE(properties_element) ||
11738       IS_MM_ENVELOPE(properties_element))
11739   {
11740     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
11741     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
11742     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
11743     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
11744     int envelope_nr = ENVELOPE_NR(properties_element);
11745
11746     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
11747     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
11748
11749     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
11750     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
11751
11752     // display counter to choose size of envelope text area
11753     MapCounterButtons(counter1_id);
11754     MapCounterButtons(counter2_id);
11755
11756     // display checkbuttons to choose auto-wrap and alignment properties
11757     MapCheckbuttonGadget(button1_id);
11758     MapCheckbuttonGadget(button2_id);
11759
11760     DrawEnvelopeTextArea(envelope_nr);
11761   }
11762
11763   if (IS_MM_MCDUFFIN(properties_element))
11764   {
11765     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
11766     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
11767     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
11768   }
11769
11770   if (IS_DF_LASER(properties_element))
11771   {
11772     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
11773     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
11774     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
11775   }
11776
11777   if (IS_CUSTOM_ELEMENT(properties_element))
11778   {
11779     // draw stickybutton gadget
11780     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11781
11782     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11783     {
11784       // draw checkbutton gadgets
11785       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
11786            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
11787         MapCheckbuttonGadget(i);
11788
11789       // draw counter gadgets
11790       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
11791            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
11792         MapCounterButtons(i);
11793
11794       // draw selectbox gadgets
11795       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
11796            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
11797         MapSelectboxGadget(i);
11798
11799       // draw textbutton gadgets
11800       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11801
11802       // draw text input gadgets
11803       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11804
11805       // draw drawing area gadgets
11806       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11807
11808       draw_footer_line = TRUE;
11809     }
11810     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11811     {
11812       // draw checkbutton gadgets
11813       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
11814            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
11815         MapCheckbuttonGadget(i);
11816
11817       // draw counter gadgets
11818       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
11819            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
11820         MapCounterButtons(i);
11821
11822       // draw selectbox gadgets
11823       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
11824            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
11825         MapSelectboxGadget(i);
11826
11827       // draw drawing area gadgets
11828       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
11829       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
11830       DrawCustomContentArea();
11831     }
11832   }
11833   else if (IS_GROUP_ELEMENT(properties_element))
11834   {
11835     // draw stickybutton gadget
11836     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11837
11838     // draw checkbutton gadgets
11839     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11840     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11841
11842     // draw counter gadgets
11843     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
11844
11845     // draw selectbox gadgets
11846     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
11847
11848     // draw textbutton gadgets
11849     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11850
11851     // draw drawing area gadgets
11852     DrawGroupElementArea();
11853
11854     // draw text input gadgets
11855     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11856
11857     // draw drawing area gadgets
11858     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11859
11860     draw_footer_line = TRUE;
11861   }
11862   else if (IS_EMPTY_ELEMENT(properties_element))
11863   {
11864     // draw stickybutton gadget
11865     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11866
11867     // draw checkbutton gadgets
11868     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11869     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11870
11871     // draw textbutton gadgets
11872     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11873
11874     // draw drawing area gadgets
11875     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11876
11877     draw_footer_line = TRUE;
11878   }
11879
11880   // draw little footer border line above CE/GE use/save template gadgets
11881   if (draw_footer_line)
11882   {
11883     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
11884     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
11885     int gd_x = gd->x + gd_gi1->border.width / 2;
11886     int gd_y = gd->y + gd_gi1->height - 1;
11887     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
11888
11889     if (tab_color != BLACK_PIXEL)               // black => transparent
11890       FillRectangle(drawto,
11891                     SX + ED_ELEMENT_SETTINGS_X(0),
11892                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
11893                     ED_TAB_BAR_HEIGHT,
11894                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
11895   }
11896 }
11897
11898 static void DrawPropertiesChangeDrawingAreas(void)
11899 {
11900   if (IS_CUSTOM_ELEMENT(properties_element))
11901   {
11902     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
11903     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
11904     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
11905
11906     DrawCustomChangeContentArea();
11907   }
11908
11909   redraw_mask |= REDRAW_FIELD;
11910 }
11911
11912 static void DrawPropertiesChange(void)
11913 {
11914   int i;
11915
11916   // needed to initially set selectbox options for special action options
11917   setSelectboxSpecialActionOptions();
11918
11919   // draw stickybutton gadget
11920   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11921
11922   // draw checkbutton gadgets
11923   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
11924        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
11925     MapCheckbuttonGadget(i);
11926
11927   // draw counter gadgets
11928   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
11929        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
11930     MapCounterButtons(i);
11931
11932   // draw selectbox gadgets
11933   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
11934        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
11935     MapSelectboxGadget(i);
11936
11937   // draw textbutton gadgets
11938   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
11939        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
11940     MapTextbuttonGadget(i);
11941
11942   // draw graphicbutton gadgets
11943   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
11944        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
11945     MapGraphicbuttonGadget(i);
11946
11947   // draw drawing area gadgets
11948   DrawPropertiesChangeDrawingAreas();
11949 }
11950
11951 static void DrawEditorElementAnimation(int x, int y)
11952 {
11953   int graphic = el2img(properties_element);
11954   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
11955                custom_element.ce_value_fixed_initial :
11956                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
11957                custom_element.collect_score_initial : FrameCounter);
11958
11959   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
11960 }
11961
11962 static void DrawEditorElementName(int x, int y, int font_nr)
11963 {
11964   char *element_name = getElementInfoText(properties_element);
11965   int font_width = getFontWidth(font_nr);
11966   int font_height = getFontHeight(font_nr);
11967   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
11968   int max_chars_per_line = max_text_width / font_width;
11969
11970   if (strlen(element_name) <= max_chars_per_line)
11971     DrawTextS(x, y, font_nr, element_name);
11972   else
11973   {
11974     char buffer[max_chars_per_line + 1];
11975     int next_pos = max_chars_per_line;
11976
11977     strncpy(buffer, element_name, max_chars_per_line);
11978     buffer[max_chars_per_line] = '\0';
11979
11980     if (element_name[max_chars_per_line] == ' ')
11981       next_pos++;
11982     else
11983     {
11984       int i;
11985
11986       for (i = max_chars_per_line - 1; i >= 0; i--)
11987         if (buffer[i] == ' ')
11988           break;
11989
11990       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
11991       {
11992         buffer[i] = '\0';
11993         next_pos = i + 1;
11994       }
11995     }
11996
11997     DrawTextS(x, y - font_height / 2, font_nr, buffer);
11998
11999     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
12000     buffer[max_chars_per_line] = '\0';
12001
12002     DrawTextS(x, y + font_height / 2, font_nr, buffer);
12003   }
12004 }
12005
12006 static void DrawPropertiesWindow(void)
12007 {
12008   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
12009   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
12010   int border_size = gd->border_size;
12011   int font_nr = FONT_TEXT_1;
12012   int font_height = getFontHeight(font_nr);
12013   int xoffset = TILEX + element_border + 3 * border_size;
12014   int yoffset = (TILEY - font_height) / 2;
12015   int x1 = editor.settings.element_graphic.x + element_border;
12016   int y1 = editor.settings.element_graphic.y + element_border;
12017   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
12018             editor.settings.element_name.x);
12019   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
12020             editor.settings.element_name.y);
12021   char *text = "Element Settings";
12022   int font2_nr = FONT_TITLE_1;
12023   struct MenuPosInfo *pos = &editor.settings.headline;
12024   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
12025   int sy = SY + pos->y;
12026
12027   stick_element_properties_window = FALSE;
12028
12029   // make sure that previous properties edit mode exists for this element
12030   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
12031       !IS_CUSTOM_ELEMENT(properties_element))
12032     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
12033
12034   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
12035       !IS_PLAYER_ELEMENT(properties_element) &&
12036       !IS_CUSTOM_ELEMENT(properties_element))
12037     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
12038
12039   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
12040       (IS_PLAYER_ELEMENT(properties_element) ||
12041        IS_CUSTOM_ELEMENT(properties_element)))
12042     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
12043
12044   CopyElementPropertiesToEditor(properties_element);
12045
12046   UnmapLevelEditorFieldGadgets();
12047   UnmapLevelEditorToolboxDrawingGadgets();
12048   UnmapLevelEditorToolboxCustomGadgets();
12049
12050   MapLevelEditorToolboxCustomGadgetsIfNeeded();
12051
12052   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
12053   ClearField();
12054
12055   DrawText(sx, sy, text, font2_nr);
12056
12057   FrameCounter = 0;     // restart animation frame counter
12058
12059   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
12060   DrawEditorElementAnimation(SX + x1, SY + y1);
12061   DrawEditorElementName(x2, y2, font_nr);
12062
12063   DrawPropertiesTabulatorGadgets();
12064
12065   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
12066     DrawPropertiesInfo();
12067   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
12068     DrawPropertiesChange();
12069   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
12070     DrawPropertiesConfig();
12071 }
12072
12073 static void DrawPaletteWindow(void)
12074 {
12075   int i;
12076
12077   UnmapLevelEditorFieldGadgets();
12078
12079   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
12080   ClearField();
12081
12082   // map buttons to select elements
12083   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
12084     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
12085   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
12086   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
12087   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
12088 }
12089
12090 static void UpdateCustomElementGraphicGadgets(void)
12091 {
12092   int i;
12093
12094   InitElementPropertiesGfxElement();
12095
12096   ModifyEditorElementList();
12097   RedrawDrawingElements();
12098
12099   // force redraw of all mapped drawing area gadgets
12100   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
12101   {
12102     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
12103
12104     if (gi->mapped)
12105       MapDrawingArea(i);
12106   }
12107 }
12108
12109 static int getOpenDirectionFromTube(int element)
12110 {
12111   switch (element)
12112   {
12113     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
12114     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
12115     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
12116     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
12117     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
12118     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
12119     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
12120     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
12121     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
12122     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
12123     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
12124   }
12125
12126   return MV_NONE;
12127 }
12128
12129 static int getTubeFromOpenDirection(int direction)
12130 {
12131   switch (direction)
12132   {
12133     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
12134     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
12135     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
12136     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
12137     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
12138     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
12139     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
12140     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
12141     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
12142     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
12143     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
12144
12145     // if only one direction, fall back to simple tube with that direction
12146     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
12147     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
12148     case (MV_UP):                       return EL_TUBE_VERTICAL;
12149     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
12150   }
12151
12152   return EL_EMPTY;
12153 }
12154
12155 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
12156 {
12157   int element_new = getTubeFromOpenDirection(direction);
12158
12159   return (element_new != EL_EMPTY ? element_new : element_old);
12160 }
12161
12162 static int getOpenDirectionFromBelt(int element)
12163 {
12164   int belt_dir = getBeltDirFromBeltElement(element);
12165
12166   return (belt_dir == MV_LEFT ? MV_RIGHT :
12167           belt_dir == MV_RIGHT ? MV_LEFT :
12168           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
12169 }
12170
12171 static int getBeltFromNrAndOpenDirection(int nr, int direction)
12172 {
12173   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
12174                   direction == MV_RIGHT ? MV_LEFT :
12175                   direction == MV_HORIZONTAL ? MV_NONE : direction);
12176
12177   if (direction == MV_NONE)
12178     return EL_EMPTY;
12179
12180   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
12181 }
12182
12183 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
12184                                                  int element_old)
12185 {
12186   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
12187
12188   return (element_new != EL_EMPTY ? element_new : element_old);
12189 }
12190
12191 static int getOpenDirectionFromPool(int element)
12192 {
12193   switch (element)
12194   {
12195     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
12196     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
12197     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
12198     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
12199     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
12200     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
12201   }
12202
12203   return MV_NONE;
12204 }
12205
12206 static int getPoolFromOpenDirection(int direction)
12207 {
12208   switch (direction)
12209   {
12210     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
12211     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
12212     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
12213     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
12214     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
12215     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
12216   }
12217
12218   return EL_EMPTY;
12219 }
12220
12221 static int getPoolFromOpenDirectionExt(int direction, int help_element)
12222 {
12223   int element = getPoolFromOpenDirection(direction);
12224   int help_direction = getOpenDirectionFromPool(help_element);
12225
12226   if (element == EL_EMPTY)
12227   {
12228     int help_direction_vertical = help_direction & MV_VERTICAL;
12229
12230     element = getPoolFromOpenDirection(direction | help_direction_vertical);
12231   }
12232
12233   if (element == EL_EMPTY)
12234   {
12235     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
12236
12237     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
12238   }
12239
12240   return element;
12241 }
12242
12243 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
12244 {
12245   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
12246
12247   return (element_new != EL_EMPTY ? element_new : element_old);
12248 }
12249
12250 static int getOpenDirectionFromPillar(int element)
12251 {
12252   switch (element)
12253   {
12254     case EL_EMC_WALL_1:                 return (MV_DOWN);
12255     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
12256     case EL_EMC_WALL_3:                 return (MV_UP);
12257   }
12258
12259   return MV_NONE;
12260 }
12261
12262 static int getPillarFromOpenDirection(int direction)
12263 {
12264   switch (direction)
12265   {
12266     case (MV_DOWN):                     return EL_EMC_WALL_1;
12267     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
12268     case (MV_UP):                       return EL_EMC_WALL_3;
12269   }
12270
12271   return EL_EMPTY;
12272 }
12273
12274 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
12275 {
12276   int element_new = getPillarFromOpenDirection(direction);
12277
12278   return (element_new != EL_EMPTY ? element_new : element_old);
12279 }
12280
12281 static int getOpenDirectionFromSteel2(int element)
12282 {
12283   switch (element)
12284   {
12285     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
12286     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
12287     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
12288     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
12289     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
12290     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
12291     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
12292     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
12293   }
12294
12295   return MV_NONE;
12296 }
12297
12298 static int getSteel2FromOpenDirection(int direction)
12299 {
12300   switch (direction)
12301   {
12302     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
12303     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
12304     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
12305     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
12306     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
12307     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
12308     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
12309     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
12310   }
12311
12312   return EL_EMPTY;
12313 }
12314
12315 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
12316 {
12317   int element_new = getSteel2FromOpenDirection(direction);
12318
12319   return (element_new != EL_EMPTY ? element_new : element_old);
12320 }
12321
12322 static int getOpenDirectionFromChip(int element)
12323 {
12324   switch (element)
12325   {
12326     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
12327     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
12328     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
12329     case EL_SP_CHIP_TOP:                return (MV_DOWN);
12330     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
12331   }
12332
12333   return MV_NONE;
12334 }
12335
12336 static int getChipFromOpenDirection(int direction)
12337 {
12338   switch (direction)
12339   {
12340     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
12341     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
12342     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
12343     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
12344     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
12345   }
12346
12347   return EL_EMPTY;
12348 }
12349
12350 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
12351 {
12352   int element_new = getChipFromOpenDirection(direction);
12353
12354   return (element_new != EL_EMPTY ? element_new : element_old);
12355 }
12356
12357 static int getClosedTube(int x, int y)
12358 {
12359   struct XY *xy = xy_directions;
12360   int element_old = IntelliDrawBuffer[x][y];
12361   int direction_old = getOpenDirectionFromTube(element_old);
12362   int direction_new = MV_NONE;
12363   int i;
12364
12365   for (i = 0; i < NUM_DIRECTIONS; i++)
12366   {
12367     int xx = x + xy[i].x;
12368     int yy = y + xy[i].y;
12369     int dir = MV_DIR_FROM_BIT(i);
12370     int dir_opposite = MV_DIR_OPPOSITE(dir);
12371
12372     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
12373         (direction_old & dir) &&
12374         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12375       direction_new |= dir;
12376   }
12377
12378   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
12379 }
12380
12381 static int getClosedBelt(int x, int y)
12382 {
12383   struct XY *xy = xy_directions;
12384   int element_old = IntelliDrawBuffer[x][y];
12385   int nr = getBeltNrFromBeltElement(element_old);
12386   int direction_old = getOpenDirectionFromBelt(element_old);
12387   int direction_new = MV_NONE;
12388   int i;
12389
12390   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12391   {
12392     int xx = x + xy[i].x;
12393     int yy = y + xy[i].y;
12394     int dir = MV_DIR_FROM_BIT(i);
12395     int dir_opposite = MV_DIR_OPPOSITE(dir);
12396
12397     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
12398         (direction_old & dir) &&
12399         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12400       direction_new |= dir;
12401   }
12402
12403   return getBeltFromNrAndOpenDirection(nr, direction_new);
12404 }
12405
12406 static int getClosedPool(int x, int y)
12407 {
12408   struct XY *xy = xy_directions;
12409   int element_old = IntelliDrawBuffer[x][y];
12410   int direction_old = getOpenDirectionFromPool(element_old);
12411   int direction_new = MV_NONE;
12412   int i;
12413
12414   for (i = 0; i < NUM_DIRECTIONS; i++)
12415   {
12416     int xx = x + xy[i].x;
12417     int yy = y + xy[i].y;
12418     int dir = MV_DIR_FROM_BIT(i);
12419     int dir_opposite = MV_DIR_OPPOSITE(dir);
12420
12421     if (IN_LEV_FIELD(xx, yy) &&
12422         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
12423         (direction_old & dir) &&
12424         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12425       direction_new |= dir;
12426   }
12427
12428   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
12429 }
12430
12431 static int getClosedPillar(int x, int y)
12432 {
12433   struct XY *xy = xy_directions;
12434   int element_old = IntelliDrawBuffer[x][y];
12435   int direction_old = getOpenDirectionFromPillar(element_old);
12436   int direction_new = MV_NONE;
12437   int i;
12438
12439   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12440   {
12441     int xx = x + xy[i].x;
12442     int yy = y + xy[i].y;
12443     int dir = MV_DIR_FROM_BIT(i);
12444     int dir_opposite = MV_DIR_OPPOSITE(dir);
12445
12446     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
12447         (direction_old & dir) &&
12448         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12449       direction_new |= dir;
12450   }
12451
12452   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
12453 }
12454
12455 static int getClosedSteel2(int x, int y)
12456 {
12457   struct XY *xy = xy_directions;
12458   int element_old = IntelliDrawBuffer[x][y];
12459   int direction_old = getOpenDirectionFromSteel2(element_old);
12460   int direction_new = MV_NONE;
12461   int i;
12462
12463   for (i = 0; i < NUM_DIRECTIONS; i++)
12464   {
12465     int xx = x + xy[i].x;
12466     int yy = y + xy[i].y;
12467     int dir = MV_DIR_FROM_BIT(i);
12468     int dir_opposite = MV_DIR_OPPOSITE(dir);
12469
12470     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
12471         (direction_old & dir) &&
12472         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12473       direction_new |= dir;
12474   }
12475
12476   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
12477 }
12478
12479 static int getClosedChip(int x, int y)
12480 {
12481   struct XY *xy = xy_directions;
12482   int element_old = IntelliDrawBuffer[x][y];
12483   int direction_old = getOpenDirectionFromChip(element_old);
12484   int direction_new = MV_NONE;
12485   int i;
12486
12487   for (i = 0; i < NUM_DIRECTIONS; i++)
12488   {
12489     int xx = x + xy[i].x;
12490     int yy = y + xy[i].y;
12491     int dir = MV_DIR_FROM_BIT(i);
12492     int dir_opposite = MV_DIR_OPPOSITE(dir);
12493
12494     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
12495         (direction_old & dir) &&
12496         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12497       direction_new |= dir;
12498   }
12499
12500   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
12501 }
12502
12503 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
12504                                 boolean change_level)
12505 {
12506   int sx = x - level_xpos;
12507   int sy = y - level_ypos;
12508   int old_element = Tile[x][y];
12509   int new_element = element;
12510   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
12511   boolean draw_masked = FALSE;
12512
12513   if (IS_MM_WALL_EDITOR(element))
12514   {
12515     element = map_mm_wall_element_editor(element) | new_bitmask;
12516
12517     if (IS_MM_WALL(old_element))
12518       element |= MM_WALL_BITS(old_element);
12519
12520     if (!change_level)
12521       draw_masked = TRUE;
12522   }
12523   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
12524   {
12525     int element_changed = old_element & ~new_bitmask;
12526
12527     if (MM_WALL_BITS(element_changed) != 0)
12528       element = element_changed;
12529   }
12530
12531   IntelliDrawBuffer[x][y] = element;
12532
12533   if (change_level)
12534     Tile[x][y] = element;
12535
12536   if (IN_ED_FIELD(sx, sy))
12537   {
12538     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
12539       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
12540     else if (draw_masked)
12541       DrawEditorElementThruMask(sx, sy, element);
12542     else
12543       DrawEditorElement(sx, sy, element);
12544   }
12545 }
12546
12547 static void SetElementSimple(int x, int y, int element, boolean change_level)
12548 {
12549   SetElementSimpleExt(x, y, 0, 0, element, change_level);
12550 }
12551
12552 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
12553                                            int x2, int y2, int *element2,
12554                                            int (*close_function)(int, int),
12555                                            boolean change_level)
12556 {
12557   // set neighbour elements to newly determined connections
12558   SetElementSimple(x1, y1, *element1, change_level);
12559   SetElementSimple(x2, y2, *element2, change_level);
12560
12561   // remove all open connections of neighbour elements
12562   *element1 = close_function(x1, y1);
12563   *element2 = close_function(x2, y2);
12564
12565   // set neighbour elements to new, minimized connections
12566   SetElementSimple(x1, y1, *element1, change_level);
12567   SetElementSimple(x2, y2, *element2, change_level);
12568 }
12569
12570 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
12571                                   boolean change_level, int button)
12572 {
12573   struct XY *xy = xy_directions;
12574   static int last_x = -1;
12575   static int last_y = -1;
12576
12577   if (new_element == EL_UNDEFINED)
12578   {
12579     last_x = -1;
12580     last_y = -1;
12581
12582     return;
12583   }
12584
12585   int old_element = IntelliDrawBuffer[x][y];
12586
12587   if (IS_TUBE(new_element))
12588   {
12589     int last_element_new = EL_UNDEFINED;
12590     int direction = MV_NONE;
12591     int i;
12592
12593     // if old element is of same kind, keep all existing directions
12594     if (IS_TUBE(old_element))
12595       direction |= getOpenDirectionFromTube(old_element);
12596
12597     for (i = 0; i < NUM_DIRECTIONS; i++)
12598     {
12599       int xx = x + xy[i].x;
12600       int yy = y + xy[i].y;
12601
12602       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12603           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
12604       {
12605         int dir = MV_DIR_FROM_BIT(i);
12606         int dir_opposite = MV_DIR_OPPOSITE(dir);
12607         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12608         int last_direction_old = getOpenDirectionFromTube(last_element_old);
12609         int last_direction_new = last_direction_old | dir_opposite;
12610
12611         last_element_new = getTubeFromOpenDirection(last_direction_new);
12612
12613         direction |= dir;
12614       }
12615     }
12616
12617     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
12618
12619     if (last_element_new != EL_UNDEFINED)
12620       MergeAndCloseNeighbourElements(x, y, &new_element,
12621                                      last_x, last_y, &last_element_new,
12622                                      getClosedTube, change_level);
12623   }
12624   else if (IS_BELT(new_element))
12625   {
12626     int belt_nr = getBeltNrFromBeltElement(new_element);
12627     int last_element_new = EL_UNDEFINED;
12628     int direction = MV_NONE;
12629     int i;
12630
12631     // if old element is of same kind, keep all existing directions
12632     if (IS_BELT(old_element))
12633       direction |= getOpenDirectionFromBelt(old_element);
12634
12635     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12636     {
12637       int xx = x + xy[i].x;
12638       int yy = y + xy[i].y;
12639
12640       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12641           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
12642       {
12643         int dir = MV_DIR_FROM_BIT(i);
12644         int dir_opposite = MV_DIR_OPPOSITE(dir);
12645         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12646         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
12647         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
12648         int last_direction_new = last_direction_old | dir_opposite;
12649
12650         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
12651                                                          last_direction_new);
12652         direction |= dir;
12653       }
12654     }
12655
12656     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
12657                                                         new_element);
12658     if (last_element_new != EL_UNDEFINED)
12659       MergeAndCloseNeighbourElements(x, y, &new_element,
12660                                      last_x, last_y, &last_element_new,
12661                                      getClosedBelt, change_level);
12662   }
12663   else if (IS_ACID_POOL_OR_ACID(new_element))
12664   {
12665     int last_element_new = EL_UNDEFINED;
12666     int direction = MV_NONE;
12667     int i;
12668
12669     // if old element is of same kind, keep all existing directions
12670     if (IS_ACID_POOL_OR_ACID(old_element))
12671       direction |= getOpenDirectionFromPool(old_element);
12672
12673     for (i = 0; i < NUM_DIRECTIONS; i++)
12674     {
12675       int xx = x + xy[i].x;
12676       int yy = y + xy[i].y;
12677
12678       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12679           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
12680       {
12681         int dir = MV_DIR_FROM_BIT(i);
12682         int dir_opposite = MV_DIR_OPPOSITE(dir);
12683         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12684         int last_direction_old = getOpenDirectionFromPool(last_element_old);
12685         int last_direction_new = last_direction_old | dir_opposite;
12686
12687         last_element_new = getPoolFromOpenDirection(last_direction_new);
12688
12689         direction |= dir;
12690       }
12691     }
12692
12693     // special corrections needed for intuitively correct acid pool drawing
12694     if (last_element_new == EL_EMPTY)
12695       last_element_new = new_element;
12696     else if (last_element_new != EL_UNDEFINED)
12697       new_element = last_element_new;
12698
12699     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
12700
12701     if (last_element_new != EL_UNDEFINED)
12702       MergeAndCloseNeighbourElements(x, y, &new_element,
12703                                      last_x, last_y, &last_element_new,
12704                                      getClosedPool, change_level);
12705   }
12706   else if (IS_EMC_PILLAR(new_element))
12707   {
12708     int last_element_new = EL_UNDEFINED;
12709     int direction = MV_NONE;
12710     int i;
12711
12712     // if old element is of same kind, keep all existing directions
12713     if (IS_EMC_PILLAR(old_element))
12714       direction |= getOpenDirectionFromPillar(old_element);
12715
12716     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12717     {
12718       int xx = x + xy[i].x;
12719       int yy = y + xy[i].y;
12720
12721       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12722           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
12723       {
12724         int dir = MV_DIR_FROM_BIT(i);
12725         int dir_opposite = MV_DIR_OPPOSITE(dir);
12726         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12727         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
12728         int last_direction_new = last_direction_old | dir_opposite;
12729
12730         last_element_new = getPillarFromOpenDirection(last_direction_new);
12731
12732         direction |= dir;
12733       }
12734     }
12735
12736     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
12737
12738     if (last_element_new != EL_UNDEFINED)
12739       MergeAndCloseNeighbourElements(x, y, &new_element,
12740                                      last_x, last_y, &last_element_new,
12741                                      getClosedPillar, change_level);
12742   }
12743   else if (IS_DC_STEELWALL_2(new_element))
12744   {
12745     int last_element_new = EL_UNDEFINED;
12746     int direction = MV_NONE;
12747     int i;
12748
12749     // if old element is of same kind, keep all existing directions
12750     if (IS_DC_STEELWALL_2(old_element))
12751       direction |= getOpenDirectionFromSteel2(old_element);
12752
12753     for (i = 0; i < NUM_DIRECTIONS; i++)
12754     {
12755       int xx = x + xy[i].x;
12756       int yy = y + xy[i].y;
12757
12758       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12759           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
12760       {
12761         int dir = MV_DIR_FROM_BIT(i);
12762         int dir_opposite = MV_DIR_OPPOSITE(dir);
12763         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12764         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
12765         int last_direction_new = last_direction_old | dir_opposite;
12766
12767         last_element_new = getSteel2FromOpenDirection(last_direction_new);
12768
12769         direction |= dir;
12770       }
12771     }
12772
12773     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
12774
12775     if (last_element_new != EL_UNDEFINED)
12776       MergeAndCloseNeighbourElements(x, y, &new_element,
12777                                      last_x, last_y, &last_element_new,
12778                                      getClosedSteel2, change_level);
12779   }
12780   else if (IS_SP_CHIP(new_element))
12781   {
12782     int last_element_new = EL_UNDEFINED;
12783     int direction = MV_NONE;
12784     int i;
12785
12786     // (do not keep existing directions, regardless of kind of old element)
12787
12788     for (i = 0; i < NUM_DIRECTIONS; i++)
12789     {
12790       int xx = x + xy[i].x;
12791       int yy = y + xy[i].y;
12792
12793       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12794           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
12795       {
12796         int dir = MV_DIR_FROM_BIT(i);
12797         int dir_opposite = MV_DIR_OPPOSITE(dir);
12798         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12799         int last_direction_old = getOpenDirectionFromChip(last_element_old);
12800         int last_direction_new = last_direction_old | dir_opposite;
12801
12802         if (last_direction_old == MV_NONE)
12803         {
12804           last_element_new = getChipFromOpenDirection(last_direction_new);
12805           direction |= dir;
12806         }
12807         else if (last_direction_old & (dir | dir_opposite))
12808         {
12809           direction |= MV_DIR_OPPOSITE(last_direction_old);
12810         }
12811         else
12812         {
12813           direction |= MV_DIR_OPPOSITE(dir);
12814         }
12815       }
12816     }
12817
12818     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
12819
12820     if (last_element_new != EL_UNDEFINED)
12821       MergeAndCloseNeighbourElements(x, y, &new_element,
12822                                      last_x, last_y, &last_element_new,
12823                                      getClosedChip, change_level);
12824   }
12825   else if (IS_SP_HARDWARE_BASE(new_element))
12826   {
12827     int nr = GetSimpleRandom(6);
12828
12829     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
12830                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
12831                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
12832                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
12833                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
12834   }
12835   else if (new_element == EL_SP_HARDWARE_GREEN ||
12836            new_element == EL_SP_HARDWARE_BLUE ||
12837            new_element == EL_SP_HARDWARE_RED)
12838   {
12839     int nr = GetSimpleRandom(3);
12840
12841     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
12842                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
12843   }
12844   else if (IS_GROUP_ELEMENT(new_element))
12845   {
12846     boolean connected_drawing = FALSE;
12847     int i;
12848
12849     for (i = 0; i < NUM_DIRECTIONS; i++)
12850     {
12851       int xx = x + xy[i].x;
12852       int yy = y + xy[i].y;
12853
12854       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12855           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
12856         connected_drawing = TRUE;
12857     }
12858
12859     if (!connected_drawing)
12860       ResolveGroupElement(new_element);
12861
12862     new_element = GetElementFromGroupElement(new_element);
12863   }
12864   else if (IS_BELT_SWITCH(old_element))
12865   {
12866     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
12867     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
12868
12869     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
12870                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
12871
12872     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
12873   }
12874   else
12875   {
12876     static int swappable_elements[][2] =
12877     {
12878       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
12879       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
12880       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
12881       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
12882       { EL_EMERALD,                     EL_WALL_EMERALD                 },
12883       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
12884       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
12885       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
12886       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
12887       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
12888       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
12889       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
12890       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
12891       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
12892       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
12893       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
12894       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
12895       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
12896       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
12897       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
12898       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
12899       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
12900       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
12901       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
12902       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
12903       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
12904       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
12905       { EL_PEARL,                       EL_WALL_PEARL                   },
12906       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
12907       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
12908       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
12909       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
12910       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
12911       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
12912       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
12913       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
12914       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
12915       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
12916       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
12917       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
12918       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
12919       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
12920       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
12921       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
12922
12923       { -1,                             -1                              },
12924     };
12925     static int rotatable_elements_4[][4] =
12926     {
12927       {
12928         EL_BUG_UP,
12929         EL_BUG_RIGHT,
12930         EL_BUG_DOWN,
12931         EL_BUG_LEFT
12932       },
12933       {
12934         EL_SPACESHIP_UP,
12935         EL_SPACESHIP_RIGHT,
12936         EL_SPACESHIP_DOWN,
12937         EL_SPACESHIP_LEFT
12938       },
12939       {
12940         EL_BD_BUTTERFLY_UP,
12941         EL_BD_BUTTERFLY_RIGHT,
12942         EL_BD_BUTTERFLY_DOWN,
12943         EL_BD_BUTTERFLY_LEFT
12944       },
12945       {
12946         EL_BD_FIREFLY_UP,
12947         EL_BD_FIREFLY_RIGHT,
12948         EL_BD_FIREFLY_DOWN,
12949         EL_BD_FIREFLY_LEFT
12950       },
12951       {
12952         EL_PACMAN_UP,
12953         EL_PACMAN_RIGHT,
12954         EL_PACMAN_DOWN,
12955         EL_PACMAN_LEFT
12956       },
12957       {
12958         EL_YAMYAM_UP,
12959         EL_YAMYAM_RIGHT,
12960         EL_YAMYAM_DOWN,
12961         EL_YAMYAM_LEFT
12962       },
12963       {
12964         EL_ARROW_UP,
12965         EL_ARROW_RIGHT,
12966         EL_ARROW_DOWN,
12967         EL_ARROW_LEFT
12968       },
12969       {
12970         EL_SP_PORT_UP,
12971         EL_SP_PORT_RIGHT,
12972         EL_SP_PORT_DOWN,
12973         EL_SP_PORT_LEFT
12974       },
12975       {
12976         EL_SP_GRAVITY_PORT_UP,
12977         EL_SP_GRAVITY_PORT_RIGHT,
12978         EL_SP_GRAVITY_PORT_DOWN,
12979         EL_SP_GRAVITY_PORT_LEFT
12980       },
12981       {
12982         EL_SP_GRAVITY_ON_PORT_UP,
12983         EL_SP_GRAVITY_ON_PORT_RIGHT,
12984         EL_SP_GRAVITY_ON_PORT_DOWN,
12985         EL_SP_GRAVITY_ON_PORT_LEFT
12986       },
12987       {
12988         EL_SP_GRAVITY_OFF_PORT_UP,
12989         EL_SP_GRAVITY_OFF_PORT_RIGHT,
12990         EL_SP_GRAVITY_OFF_PORT_DOWN,
12991         EL_SP_GRAVITY_OFF_PORT_LEFT
12992       },
12993       {
12994         EL_MOLE_UP,
12995         EL_MOLE_RIGHT,
12996         EL_MOLE_DOWN,
12997         EL_MOLE_LEFT
12998       },
12999       {
13000         EL_BALLOON_SWITCH_UP,
13001         EL_BALLOON_SWITCH_RIGHT,
13002         EL_BALLOON_SWITCH_DOWN,
13003         EL_BALLOON_SWITCH_LEFT
13004       },
13005       {
13006         EL_MM_MCDUFFIN_UP,
13007         EL_MM_MCDUFFIN_RIGHT,
13008         EL_MM_MCDUFFIN_DOWN,
13009         EL_MM_MCDUFFIN_LEFT
13010       },
13011       {
13012         EL_MM_MIRROR_FIXED_1,
13013         EL_MM_MIRROR_FIXED_4,
13014         EL_MM_MIRROR_FIXED_3,
13015         EL_MM_MIRROR_FIXED_2
13016       },
13017       {
13018         EL_MM_STEEL_GRID_FIXED_1,
13019         EL_MM_STEEL_GRID_FIXED_4,
13020         EL_MM_STEEL_GRID_FIXED_2,
13021         EL_MM_STEEL_GRID_FIXED_3
13022       },
13023       {
13024         EL_MM_WOODEN_GRID_FIXED_1,
13025         EL_MM_WOODEN_GRID_FIXED_4,
13026         EL_MM_WOODEN_GRID_FIXED_2,
13027         EL_MM_WOODEN_GRID_FIXED_3
13028       },
13029       {
13030         EL_MM_POLARIZER_CROSS_1,
13031         EL_MM_POLARIZER_CROSS_4,
13032         EL_MM_POLARIZER_CROSS_3,
13033         EL_MM_POLARIZER_CROSS_2
13034       },
13035       {
13036         EL_MM_PACMAN_UP,
13037         EL_MM_PACMAN_RIGHT,
13038         EL_MM_PACMAN_DOWN,
13039         EL_MM_PACMAN_LEFT
13040       },
13041       {
13042         EL_DF_LASER_UP,
13043         EL_DF_LASER_RIGHT,
13044         EL_DF_LASER_DOWN,
13045         EL_DF_LASER_LEFT
13046       },
13047       {
13048         EL_DF_RECEIVER_UP,
13049         EL_DF_RECEIVER_RIGHT,
13050         EL_DF_RECEIVER_DOWN,
13051         EL_DF_RECEIVER_LEFT
13052       },
13053       {
13054         EL_DF_SLOPE_1,
13055         EL_DF_SLOPE_4,
13056         EL_DF_SLOPE_3,
13057         EL_DF_SLOPE_2
13058       },
13059
13060       {
13061         -1,
13062       },
13063     };
13064     static int rotatable_elements_8[][8] =
13065     {
13066       {
13067         EL_DF_STEEL_GRID_FIXED_1,
13068         EL_DF_STEEL_GRID_FIXED_8,
13069         EL_DF_STEEL_GRID_FIXED_7,
13070         EL_DF_STEEL_GRID_FIXED_6,
13071         EL_DF_STEEL_GRID_FIXED_5,
13072         EL_DF_STEEL_GRID_FIXED_4,
13073         EL_DF_STEEL_GRID_FIXED_3,
13074         EL_DF_STEEL_GRID_FIXED_2
13075       },
13076       {
13077         EL_DF_WOODEN_GRID_FIXED_1,
13078         EL_DF_WOODEN_GRID_FIXED_8,
13079         EL_DF_WOODEN_GRID_FIXED_7,
13080         EL_DF_WOODEN_GRID_FIXED_6,
13081         EL_DF_WOODEN_GRID_FIXED_5,
13082         EL_DF_WOODEN_GRID_FIXED_4,
13083         EL_DF_WOODEN_GRID_FIXED_3,
13084         EL_DF_WOODEN_GRID_FIXED_2
13085       },
13086       {
13087         EL_DF_STEEL_GRID_ROTATING_1,
13088         EL_DF_STEEL_GRID_ROTATING_8,
13089         EL_DF_STEEL_GRID_ROTATING_7,
13090         EL_DF_STEEL_GRID_ROTATING_6,
13091         EL_DF_STEEL_GRID_ROTATING_5,
13092         EL_DF_STEEL_GRID_ROTATING_4,
13093         EL_DF_STEEL_GRID_ROTATING_3,
13094         EL_DF_STEEL_GRID_ROTATING_2
13095       },
13096       {
13097         EL_DF_WOODEN_GRID_ROTATING_1,
13098         EL_DF_WOODEN_GRID_ROTATING_8,
13099         EL_DF_WOODEN_GRID_ROTATING_7,
13100         EL_DF_WOODEN_GRID_ROTATING_6,
13101         EL_DF_WOODEN_GRID_ROTATING_5,
13102         EL_DF_WOODEN_GRID_ROTATING_4,
13103         EL_DF_WOODEN_GRID_ROTATING_3,
13104         EL_DF_WOODEN_GRID_ROTATING_2
13105       },
13106
13107       {
13108         -1,
13109       },
13110     };
13111     static int rotatable_elements_16[][16] =
13112     {
13113       {
13114         EL_MM_MIRROR_1,
13115         EL_MM_MIRROR_16,
13116         EL_MM_MIRROR_15,
13117         EL_MM_MIRROR_14,
13118         EL_MM_MIRROR_13,
13119         EL_MM_MIRROR_12,
13120         EL_MM_MIRROR_11,
13121         EL_MM_MIRROR_10,
13122         EL_MM_MIRROR_9,
13123         EL_MM_MIRROR_8,
13124         EL_MM_MIRROR_7,
13125         EL_MM_MIRROR_6,
13126         EL_MM_MIRROR_5,
13127         EL_MM_MIRROR_4,
13128         EL_MM_MIRROR_3,
13129         EL_MM_MIRROR_2
13130       },
13131       {
13132         EL_MM_TELEPORTER_5,
13133         EL_MM_TELEPORTER_4,
13134         EL_MM_TELEPORTER_3,
13135         EL_MM_TELEPORTER_2,
13136         EL_MM_TELEPORTER_1,
13137         EL_MM_TELEPORTER_16,
13138         EL_MM_TELEPORTER_15,
13139         EL_MM_TELEPORTER_14,
13140         EL_MM_TELEPORTER_13,
13141         EL_MM_TELEPORTER_12,
13142         EL_MM_TELEPORTER_11,
13143         EL_MM_TELEPORTER_10,
13144         EL_MM_TELEPORTER_9,
13145         EL_MM_TELEPORTER_8,
13146         EL_MM_TELEPORTER_7,
13147         EL_MM_TELEPORTER_6
13148       },
13149       {
13150         EL_MM_TELEPORTER_RED_5,
13151         EL_MM_TELEPORTER_RED_4,
13152         EL_MM_TELEPORTER_RED_3,
13153         EL_MM_TELEPORTER_RED_2,
13154         EL_MM_TELEPORTER_RED_1,
13155         EL_MM_TELEPORTER_RED_16,
13156         EL_MM_TELEPORTER_RED_15,
13157         EL_MM_TELEPORTER_RED_14,
13158         EL_MM_TELEPORTER_RED_13,
13159         EL_MM_TELEPORTER_RED_12,
13160         EL_MM_TELEPORTER_RED_11,
13161         EL_MM_TELEPORTER_RED_10,
13162         EL_MM_TELEPORTER_RED_9,
13163         EL_MM_TELEPORTER_RED_8,
13164         EL_MM_TELEPORTER_RED_7,
13165         EL_MM_TELEPORTER_RED_6
13166       },
13167       {
13168         EL_MM_TELEPORTER_YELLOW_5,
13169         EL_MM_TELEPORTER_YELLOW_4,
13170         EL_MM_TELEPORTER_YELLOW_3,
13171         EL_MM_TELEPORTER_YELLOW_2,
13172         EL_MM_TELEPORTER_YELLOW_1,
13173         EL_MM_TELEPORTER_YELLOW_16,
13174         EL_MM_TELEPORTER_YELLOW_15,
13175         EL_MM_TELEPORTER_YELLOW_14,
13176         EL_MM_TELEPORTER_YELLOW_13,
13177         EL_MM_TELEPORTER_YELLOW_12,
13178         EL_MM_TELEPORTER_YELLOW_11,
13179         EL_MM_TELEPORTER_YELLOW_10,
13180         EL_MM_TELEPORTER_YELLOW_9,
13181         EL_MM_TELEPORTER_YELLOW_8,
13182         EL_MM_TELEPORTER_YELLOW_7,
13183         EL_MM_TELEPORTER_YELLOW_6
13184       },
13185       {
13186         EL_MM_TELEPORTER_GREEN_5,
13187         EL_MM_TELEPORTER_GREEN_4,
13188         EL_MM_TELEPORTER_GREEN_3,
13189         EL_MM_TELEPORTER_GREEN_2,
13190         EL_MM_TELEPORTER_GREEN_1,
13191         EL_MM_TELEPORTER_GREEN_16,
13192         EL_MM_TELEPORTER_GREEN_15,
13193         EL_MM_TELEPORTER_GREEN_14,
13194         EL_MM_TELEPORTER_GREEN_13,
13195         EL_MM_TELEPORTER_GREEN_12,
13196         EL_MM_TELEPORTER_GREEN_11,
13197         EL_MM_TELEPORTER_GREEN_10,
13198         EL_MM_TELEPORTER_GREEN_9,
13199         EL_MM_TELEPORTER_GREEN_8,
13200         EL_MM_TELEPORTER_GREEN_7,
13201         EL_MM_TELEPORTER_GREEN_6
13202       },
13203       {
13204         EL_MM_TELEPORTER_BLUE_5,
13205         EL_MM_TELEPORTER_BLUE_4,
13206         EL_MM_TELEPORTER_BLUE_3,
13207         EL_MM_TELEPORTER_BLUE_2,
13208         EL_MM_TELEPORTER_BLUE_1,
13209         EL_MM_TELEPORTER_BLUE_16,
13210         EL_MM_TELEPORTER_BLUE_15,
13211         EL_MM_TELEPORTER_BLUE_14,
13212         EL_MM_TELEPORTER_BLUE_13,
13213         EL_MM_TELEPORTER_BLUE_12,
13214         EL_MM_TELEPORTER_BLUE_11,
13215         EL_MM_TELEPORTER_BLUE_10,
13216         EL_MM_TELEPORTER_BLUE_9,
13217         EL_MM_TELEPORTER_BLUE_8,
13218         EL_MM_TELEPORTER_BLUE_7,
13219         EL_MM_TELEPORTER_BLUE_6
13220       },
13221       {
13222         EL_MM_POLARIZER_1,
13223         EL_MM_POLARIZER_16,
13224         EL_MM_POLARIZER_15,
13225         EL_MM_POLARIZER_14,
13226         EL_MM_POLARIZER_13,
13227         EL_MM_POLARIZER_12,
13228         EL_MM_POLARIZER_11,
13229         EL_MM_POLARIZER_10,
13230         EL_MM_POLARIZER_9,
13231         EL_MM_POLARIZER_8,
13232         EL_MM_POLARIZER_7,
13233         EL_MM_POLARIZER_6,
13234         EL_MM_POLARIZER_5,
13235         EL_MM_POLARIZER_4,
13236         EL_MM_POLARIZER_3,
13237         EL_MM_POLARIZER_2
13238       },
13239       {
13240         EL_DF_MIRROR_1,
13241         EL_DF_MIRROR_16,
13242         EL_DF_MIRROR_15,
13243         EL_DF_MIRROR_14,
13244         EL_DF_MIRROR_13,
13245         EL_DF_MIRROR_12,
13246         EL_DF_MIRROR_11,
13247         EL_DF_MIRROR_10,
13248         EL_DF_MIRROR_9,
13249         EL_DF_MIRROR_8,
13250         EL_DF_MIRROR_7,
13251         EL_DF_MIRROR_6,
13252         EL_DF_MIRROR_5,
13253         EL_DF_MIRROR_4,
13254         EL_DF_MIRROR_3,
13255         EL_DF_MIRROR_2
13256       },
13257       {
13258         EL_DF_MIRROR_ROTATING_1,
13259         EL_DF_MIRROR_ROTATING_16,
13260         EL_DF_MIRROR_ROTATING_15,
13261         EL_DF_MIRROR_ROTATING_14,
13262         EL_DF_MIRROR_ROTATING_13,
13263         EL_DF_MIRROR_ROTATING_12,
13264         EL_DF_MIRROR_ROTATING_11,
13265         EL_DF_MIRROR_ROTATING_10,
13266         EL_DF_MIRROR_ROTATING_9,
13267         EL_DF_MIRROR_ROTATING_8,
13268         EL_DF_MIRROR_ROTATING_7,
13269         EL_DF_MIRROR_ROTATING_6,
13270         EL_DF_MIRROR_ROTATING_5,
13271         EL_DF_MIRROR_ROTATING_4,
13272         EL_DF_MIRROR_ROTATING_3,
13273         EL_DF_MIRROR_ROTATING_2
13274       },
13275       {
13276         EL_DF_MIRROR_FIXED_1,
13277         EL_DF_MIRROR_FIXED_16,
13278         EL_DF_MIRROR_FIXED_15,
13279         EL_DF_MIRROR_FIXED_14,
13280         EL_DF_MIRROR_FIXED_13,
13281         EL_DF_MIRROR_FIXED_12,
13282         EL_DF_MIRROR_FIXED_11,
13283         EL_DF_MIRROR_FIXED_10,
13284         EL_DF_MIRROR_FIXED_9,
13285         EL_DF_MIRROR_FIXED_8,
13286         EL_DF_MIRROR_FIXED_7,
13287         EL_DF_MIRROR_FIXED_6,
13288         EL_DF_MIRROR_FIXED_5,
13289         EL_DF_MIRROR_FIXED_4,
13290         EL_DF_MIRROR_FIXED_3,
13291         EL_DF_MIRROR_FIXED_2
13292       },
13293
13294       {
13295         -1,
13296       },
13297     };
13298     int i, j;
13299
13300     for (i = 0; swappable_elements[i][0] != -1; i++)
13301     {
13302       int element1 = swappable_elements[i][0];
13303       int element2 = swappable_elements[i][1];
13304
13305       if (old_element == element1 || old_element == element2)
13306         new_element = (old_element == element1 ? element2 : element1);
13307     }
13308
13309     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
13310     {
13311       for (j = 0; j < 4; j++)
13312       {
13313         int element = rotatable_elements_4[i][j];
13314
13315         if (old_element == element)
13316           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
13317                          button == 2 ? rotatable_elements_4[i][0]           :
13318                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
13319                          old_element);
13320       }
13321     }
13322
13323     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
13324     {
13325       for (j = 0; j < 8; j++)
13326       {
13327         int element = rotatable_elements_8[i][j];
13328
13329         if (old_element == element)
13330           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
13331                          button == 2 ? rotatable_elements_8[i][0]           :
13332                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
13333                          old_element);
13334       }
13335     }
13336
13337     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
13338     {
13339       for (j = 0; j < 16; j++)
13340       {
13341         int element = rotatable_elements_16[i][j];
13342
13343         if (old_element == element)
13344           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
13345                          button == 2 ? rotatable_elements_16[i][0]             :
13346                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
13347                          old_element);
13348       }
13349     }
13350
13351     if (old_element != new_element)
13352     {
13353       int max_infotext_len = getMaxInfoTextLength();
13354       char infotext[MAX_OUTPUT_LINESIZE + 1];
13355
13356       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
13357       infotext[max_infotext_len] = '\0';
13358
13359       ClearEditorGadgetInfoText();
13360
13361       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
13362                 infotext);
13363     }
13364   }
13365
13366   if (IS_MM_WALL_EDITOR(new_element))
13367     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
13368   else
13369     SetElementSimple(x, y, new_element, change_level);
13370
13371   last_x = x;
13372   last_y = y;
13373 }
13374
13375 static void ResetIntelliDraw(void)
13376 {
13377   int x, y;
13378
13379   for (x = 0; x < lev_fieldx; x++)
13380     for (y = 0; y < lev_fieldy; y++)
13381       IntelliDrawBuffer[x][y] = Tile[x][y];
13382
13383   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
13384 }
13385
13386 static boolean draw_mode_hires = FALSE;
13387
13388 static boolean isHiresTileElement(int element)
13389 {
13390   return (IS_MM_WALL(element)        || element == EL_EMPTY);
13391 }
13392
13393 static boolean isHiresDrawElement(int element)
13394 {
13395   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
13396 }
13397
13398 static int numHiresTiles(int element)
13399 {
13400   if (IS_MM_WALL(element))
13401     return get_number_of_bits(MM_WALL_BITS(element));
13402
13403   return 1;
13404 }
13405
13406 static void SetDrawModeHiRes(int element)
13407 {
13408   draw_mode_hires =
13409     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13410      isHiresDrawElement(element));
13411 }
13412
13413 static boolean getDrawModeHiRes(void)
13414 {
13415   return draw_mode_hires;
13416 }
13417
13418 static int getLoResScreenPos(int pos)
13419 {
13420   return (getDrawModeHiRes() ? pos / 2 : pos);
13421 }
13422
13423 static int getLoResScreenMod(int pos)
13424 {
13425   return (getDrawModeHiRes() ? pos % 2 : 0);
13426 }
13427
13428 static void SetElementExt(int x, int y, int dx, int dy, int element,
13429                           boolean change_level, int button)
13430 {
13431   if (element < 0)
13432     SetElementSimple(x, y, Tile[x][y], change_level);
13433   else if (GetKeyModState() & KMOD_Shift)
13434     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
13435   else
13436     SetElementSimpleExt(x, y, dx, dy, element, change_level);
13437 }
13438
13439 static void SetElement(int x, int y, int element)
13440 {
13441   SetElementExt(x, y, 0, 0, element, TRUE, -1);
13442 }
13443
13444 static void SetElementButton(int x, int y, int dx, int dy, int element,
13445                              int button)
13446 {
13447   SetElementExt(x, y, dx, dy, element, TRUE, button);
13448 }
13449
13450 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
13451 {
13452   int lx = getLoResScreenPos(sx2) + level_xpos;
13453   int ly = getLoResScreenPos(sy2) + level_ypos;
13454   int dx = getLoResScreenMod(sx2);
13455   int dy = getLoResScreenMod(sy2);
13456
13457   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
13458 }
13459
13460 static void SetLevelElementHiRes(int lx2, int ly2, int element)
13461 {
13462   int lx = lx2 / 2;
13463   int ly = ly2 / 2;
13464   int dx = lx2 % 2;
13465   int dy = ly2 % 2;
13466
13467   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
13468 }
13469
13470 static int getLevelElementHiRes(int lx2, int ly2)
13471 {
13472   int lx = lx2 / 2;
13473   int ly = ly2 / 2;
13474   int dx = lx2 % 2;
13475   int dy = ly2 % 2;
13476   int element = Tile[lx][ly];
13477   unsigned int bitmask = (dx + 1) << (dy * 2);
13478
13479   if (IS_MM_WALL(element))
13480   {
13481     if (element & bitmask)
13482       return map_mm_wall_element(element);
13483     else
13484       return EL_EMPTY;
13485   }
13486
13487   return element;
13488 }
13489
13490 static void DrawLineElement(int x, int y, int element, boolean change_level)
13491 {
13492   SetElementHiRes(x, y, element, change_level);
13493 }
13494
13495 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
13496                      int element, boolean change_level)
13497 {
13498   int xsize = ABS(to_x - from_x);
13499   int ysize = ABS(to_y - from_y);
13500   int dx = (to_x < from_x ? -1 : +1);
13501   int dy = (to_y < from_y ? -1 : +1);
13502   int i;
13503
13504   if (from_y == to_y)                   // horizontal line
13505   {
13506     for (i = 0; i <= xsize; i++)
13507       DrawLineElement(from_x + i * dx, from_y, element, change_level);
13508   }
13509   else if (from_x == to_x)              // vertical line
13510   {
13511     for (i = 0; i <= ysize; i++)
13512       DrawLineElement(from_x, from_y + i * dy, element, change_level);
13513   }
13514   else                                  // diagonal line
13515   {
13516     if (ysize < xsize)                  // a < 1
13517     {
13518       float a = (float)ysize / (float)xsize;
13519
13520       for (i = 0; i <= xsize; i++)
13521       {
13522         int x = dx * i;
13523         int y = dy * (int)(a * i + 0.5);
13524
13525         DrawLineElement(from_x + x, from_y + y, element, change_level);
13526       }
13527     }
13528     else                                // a >= 1
13529     {
13530       float a = (float)xsize / (float)ysize;
13531
13532       for (i = 0; i <= ysize; i++)
13533       {
13534         int x = dx * (int)(a * i + 0.5);
13535         int y = dy * i;
13536
13537         DrawLineElement(from_x + x, from_y + y, element, change_level);
13538       }
13539     }
13540   }
13541 }
13542
13543 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
13544                     int element, boolean change_level)
13545 {
13546   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
13547   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
13548   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
13549   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
13550 }
13551
13552 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
13553                           int element, boolean change_level)
13554 {
13555   int y;
13556
13557   if (from_y > to_y)
13558     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
13559
13560   for (y = from_y; y <= to_y; y++)
13561     DrawLine(from_x, y, to_x, y, element, change_level);
13562 }
13563
13564 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
13565                        int element, boolean change_level)
13566 {
13567   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
13568   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
13569   int len_x = ABS(to_x - from_x);
13570   int len_y = ABS(to_y - from_y);
13571   int radius, x, y;
13572
13573   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
13574
13575   // not optimal (some points get drawn twice) but simple,
13576   // and fast enough for the few points we are drawing
13577
13578   for (x = 0; x <= radius; x++)
13579   {
13580     int sx, sy, sx2, sy2, lx, ly;
13581
13582     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
13583
13584     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13585     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13586     sx = getLoResScreenPos(sx2);
13587     sy = getLoResScreenPos(sy2);
13588     lx = sx + level_xpos;
13589     ly = sy + level_ypos;
13590
13591     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13592       DrawLineElement(sx2, sy2, element, change_level);
13593   }
13594
13595   for (y = 0; y <= radius; y++)
13596   {
13597     int sx, sy, sx2, sy2, lx, ly;
13598
13599     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
13600
13601     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13602     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13603     sx = getLoResScreenPos(sx2);
13604     sy = getLoResScreenPos(sy2);
13605     lx = sx + level_xpos;
13606     ly = sy + level_ypos;
13607
13608     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13609       DrawLineElement(sx2, sy2, element, change_level);
13610   }
13611 }
13612
13613 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
13614                     int element, boolean change_level)
13615 {
13616   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13617   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13618
13619   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13620 }
13621
13622 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
13623
13624 #if DRAW_CIRCLES_BUTTON_AVAILABLE
13625 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
13626                        int element, boolean change_level)
13627 {
13628   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13629   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13630   int mirror_to_x2 = from_x - (to_x2 - from_x);
13631   int mirror_to_y2 = from_y - (to_y2 - from_y);
13632
13633   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13634   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
13635   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
13636   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element, change_level);
13637 }
13638 #endif
13639
13640 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
13641 {
13642   int from_sx, from_sy;
13643   int to_sx, to_sy;
13644
13645   if (from_x > to_x)
13646     swap_numbers(&from_x, &to_x);
13647
13648   if (from_y > to_y)
13649     swap_numbers(&from_y, &to_y);
13650
13651   from_sx = SX + from_x * ed_tilesize;
13652   from_sy = SY + from_y * ed_tilesize;
13653   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
13654   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
13655
13656   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
13657   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
13658   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
13659   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
13660
13661   if (from_x == to_x && from_y == to_y)
13662     MarkTileDirty(from_x/2, from_y/2);
13663   else
13664     redraw_mask |= REDRAW_FIELD;
13665 }
13666
13667 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
13668                         int element, boolean change_level)
13669 {
13670   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
13671 }
13672
13673 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
13674                        int element, boolean change_level)
13675 {
13676   if (element == -1 || change_level)
13677     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
13678   else
13679     DrawAreaBorder(from_x, from_y, to_x, to_y);
13680 }
13681
13682 // values for CopyBrushExt()
13683 #define CB_AREA_TO_BRUSH                0
13684 #define CB_BRUSH_TO_CURSOR              1
13685 #define CB_BRUSH_TO_LEVEL               2
13686 #define CB_DELETE_OLD_CURSOR            3
13687 #define CB_DUMP_BRUSH                   4
13688 #define CB_DUMP_BRUSH_SMALL             5
13689 #define CB_CLIPBOARD_TO_BRUSH           6
13690 #define CB_BRUSH_TO_CLIPBOARD           7
13691 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
13692 #define CB_UPDATE_BRUSH_POSITION        9
13693 #define CB_FLIP_BRUSH_X                 10
13694 #define CB_FLIP_BRUSH_Y                 11
13695 #define CB_FLIP_BRUSH_XY                12
13696
13697 #define MAX_CB_PART_SIZE        10
13698 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
13699 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
13700 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
13701                                  MAX_CB_NUM_LINES *     \
13702                                  MAX_CB_PART_SIZE)
13703
13704 static int getFlippedTileExt(int map[], int element)
13705 {
13706   int i;
13707
13708   for (i = 0; map[i] != -1; i++)
13709     if (map[i] == element)
13710       return map[i ^ 1];        // get flipped element by flipping LSB of index
13711
13712   return element;
13713 }
13714
13715 static int getFlippedTileX(int element)
13716 {
13717   int map[] =
13718   {
13719     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_RIGHT,
13720     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_RIGHT,
13721     EL_BUG_LEFT,                        EL_BUG_RIGHT,
13722     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_RIGHT,
13723     EL_PACMAN_LEFT,                     EL_PACMAN_RIGHT,
13724     EL_ARROW_LEFT,                      EL_ARROW_RIGHT,
13725     EL_MOLE_LEFT,                       EL_MOLE_RIGHT,
13726     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_RIGHT,
13727     EL_YAMYAM_LEFT,                     EL_YAMYAM_RIGHT,
13728     EL_SP_PORT_LEFT,                    EL_SP_PORT_RIGHT,
13729     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_RIGHT,
13730     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_RIGHT,
13731     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_RIGHT,
13732     EL_CONVEYOR_BELT_1_LEFT,            EL_CONVEYOR_BELT_1_RIGHT,
13733     EL_CONVEYOR_BELT_2_LEFT,            EL_CONVEYOR_BELT_2_RIGHT,
13734     EL_CONVEYOR_BELT_3_LEFT,            EL_CONVEYOR_BELT_3_RIGHT,
13735     EL_CONVEYOR_BELT_4_LEFT,            EL_CONVEYOR_BELT_4_RIGHT,
13736     EL_SPRING_LEFT,                     EL_SPRING_RIGHT,
13737     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_RIGHT,
13738     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_VERTICAL_RIGHT,
13739     EL_TUBE_LEFT_UP,                    EL_TUBE_RIGHT_UP,
13740     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_DOWN,
13741     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_RIGHT,
13742     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_TOPRIGHT,
13743     EL_DC_STEELWALL_1_BOTTOMLEFT,       EL_DC_STEELWALL_1_BOTTOMRIGHT,
13744     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_TOPRIGHT_2,
13745     EL_DC_STEELWALL_1_BOTTOMLEFT_2,     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13746     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_RIGHT,
13747     EL_ACID_POOL_TOPLEFT,               EL_ACID_POOL_TOPRIGHT,
13748     EL_ACID_POOL_BOTTOMLEFT,            EL_ACID_POOL_BOTTOMRIGHT,
13749
13750     -1
13751   };
13752
13753   return getFlippedTileExt(map, element);
13754 }
13755
13756 static int getFlippedTileY(int element)
13757 {
13758   int map[] =
13759   {
13760     EL_BD_BUTTERFLY_UP,                 EL_BD_BUTTERFLY_DOWN,
13761     EL_BD_FIREFLY_UP,                   EL_BD_FIREFLY_DOWN,
13762     EL_BUG_UP,                          EL_BUG_DOWN,
13763     EL_SPACESHIP_UP,                    EL_SPACESHIP_DOWN,
13764     EL_PACMAN_UP,                       EL_PACMAN_DOWN,
13765     EL_ARROW_UP,                        EL_ARROW_DOWN,
13766     EL_MOLE_UP,                         EL_MOLE_DOWN,
13767     EL_BALLOON_SWITCH_UP,               EL_BALLOON_SWITCH_DOWN,
13768     EL_YAMYAM_UP,                       EL_YAMYAM_DOWN,
13769     EL_SP_PORT_UP,                      EL_SP_PORT_DOWN,
13770     EL_SP_GRAVITY_PORT_UP,              EL_SP_GRAVITY_PORT_DOWN,
13771     EL_SP_GRAVITY_ON_PORT_UP,           EL_SP_GRAVITY_ON_PORT_DOWN,
13772     EL_SP_GRAVITY_OFF_PORT_UP,          EL_SP_GRAVITY_OFF_PORT_DOWN,
13773     EL_SP_CHIP_TOP,                     EL_SP_CHIP_BOTTOM,
13774     EL_TUBE_HORIZONTAL_UP,              EL_TUBE_HORIZONTAL_DOWN,
13775     EL_TUBE_LEFT_UP,                    EL_TUBE_LEFT_DOWN,
13776     EL_TUBE_RIGHT_UP,                   EL_TUBE_RIGHT_DOWN,
13777     EL_DC_STEELWALL_1_TOP,              EL_DC_STEELWALL_1_BOTTOM,
13778     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_BOTTOMLEFT,
13779     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMRIGHT,
13780     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13781     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13782     EL_DC_STEELWALL_2_TOP,              EL_DC_STEELWALL_2_BOTTOM,
13783     EL_EMC_WALL_1,                      EL_EMC_WALL_3,
13784
13785     -1
13786   };
13787
13788   return getFlippedTileExt(map, element);
13789 }
13790
13791 static int getFlippedTileXY(int element)
13792 {
13793   int map[] =
13794   {
13795     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_UP,
13796     EL_BD_BUTTERFLY_RIGHT,              EL_BD_BUTTERFLY_DOWN,
13797     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_UP,
13798     EL_BD_FIREFLY_RIGHT,                EL_BD_FIREFLY_DOWN,
13799     EL_BUG_LEFT,                        EL_BUG_UP,
13800     EL_BUG_RIGHT,                       EL_BUG_DOWN,
13801     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_UP,
13802     EL_SPACESHIP_RIGHT,                 EL_SPACESHIP_DOWN,
13803     EL_PACMAN_LEFT,                     EL_PACMAN_UP,
13804     EL_PACMAN_RIGHT,                    EL_PACMAN_DOWN,
13805     EL_ARROW_LEFT,                      EL_ARROW_UP,
13806     EL_ARROW_RIGHT,                     EL_ARROW_DOWN,
13807     EL_MOLE_LEFT,                       EL_MOLE_UP,
13808     EL_MOLE_RIGHT,                      EL_MOLE_DOWN,
13809     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_UP,
13810     EL_BALLOON_SWITCH_RIGHT,            EL_BALLOON_SWITCH_DOWN,
13811     EL_YAMYAM_LEFT,                     EL_YAMYAM_UP,
13812     EL_YAMYAM_RIGHT,                    EL_YAMYAM_DOWN,
13813     EL_SP_PORT_LEFT,                    EL_SP_PORT_UP,
13814     EL_SP_PORT_RIGHT,                   EL_SP_PORT_DOWN,
13815     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_UP,
13816     EL_SP_GRAVITY_PORT_RIGHT,           EL_SP_GRAVITY_PORT_DOWN,
13817     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_UP,
13818     EL_SP_GRAVITY_ON_PORT_RIGHT,        EL_SP_GRAVITY_ON_PORT_DOWN,
13819     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_UP,
13820     EL_SP_GRAVITY_OFF_PORT_RIGHT,       EL_SP_GRAVITY_OFF_PORT_DOWN,
13821     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_TOP,
13822     EL_SP_CHIP_RIGHT,                   EL_SP_CHIP_BOTTOM,
13823     EL_TUBE_VERTICAL,                   EL_TUBE_HORIZONTAL,
13824     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_HORIZONTAL_UP,
13825     EL_TUBE_VERTICAL_RIGHT,             EL_TUBE_HORIZONTAL_DOWN,
13826     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_UP,
13827     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_TOP,
13828     EL_DC_STEELWALL_1_RIGHT,            EL_DC_STEELWALL_1_BOTTOM,
13829     EL_DC_STEELWALL_1_HORIZONTAL,       EL_DC_STEELWALL_1_VERTICAL,
13830     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMLEFT,
13831     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13832     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_TOP,
13833     EL_DC_STEELWALL_2_RIGHT,            EL_DC_STEELWALL_2_BOTTOM,
13834     EL_DC_STEELWALL_2_HORIZONTAL,       EL_DC_STEELWALL_2_VERTICAL,
13835     EL_EXPANDABLE_WALL_HORIZONTAL,      EL_EXPANDABLE_WALL_VERTICAL,
13836     EL_EXPANDABLE_STEELWALL_HORIZONTAL, EL_EXPANDABLE_STEELWALL_VERTICAL,
13837
13838     -1
13839   };
13840
13841   return getFlippedTileExt(map, element);
13842 }
13843
13844 static int getFlippedTile(int element, int mode)
13845 {
13846   if (IS_MM_ELEMENT(element))
13847   {
13848     // get MM game element
13849     element = map_element_RND_to_MM(element);
13850
13851     // get flipped game element
13852     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX_MM(element) :
13853                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY_MM(element) :
13854                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY_MM(element) :
13855                element);
13856
13857     // get RND game element again
13858     element = map_element_MM_to_RND(element);
13859   }
13860   else
13861   {
13862     // get flipped game element
13863     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX(element) :
13864                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY(element) :
13865                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY(element) :
13866                element);
13867   }
13868
13869   return element;
13870 }
13871
13872 static void SwapFlippedTiles(short *tile1, short *tile2, int mode)
13873 {
13874   // flip tiles
13875   short tile1_flipped = getFlippedTile(*tile1, mode);
13876   short tile2_flipped = getFlippedTile(*tile2, mode);
13877
13878   // swap tiles
13879   *tile1 = tile2_flipped;
13880   *tile2 = tile1_flipped;
13881 }
13882
13883 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
13884 {
13885   DrawLineElement(sx, sy, element, change_level);
13886 }
13887
13888 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
13889                          int button, int mode)
13890 {
13891   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
13892   static int brush_width, brush_height;
13893   static int last_cursor_x = -1, last_cursor_y = -1;
13894   static boolean delete_old_brush = FALSE;
13895   int new_element = BUTTON_ELEMENT(button);
13896   int x, y;
13897
13898   if (mode == CB_DUMP_BRUSH ||
13899       mode == CB_DUMP_BRUSH_SMALL ||
13900       mode == CB_BRUSH_TO_CLIPBOARD ||
13901       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13902   {
13903     if (edit_mode != ED_MODE_DRAWING)
13904       return;
13905
13906     char part[MAX_CB_PART_SIZE + 1] = "";
13907     char text[MAX_CB_TEXT_SIZE + 1] = "";
13908     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
13909     int height = (draw_with_brush ? brush_height : lev_fieldy);
13910     char *format = "%s%03d";
13911
13912     for (y = 0; y < height; y++)
13913       for (x = 0; x < width; x++)
13914         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
13915           format = "%s%04d";
13916
13917     for (y = 0; y < height; y++)
13918     {
13919       for (x = 0; x < width; x++)
13920       {
13921         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
13922         char *prefix = (mode == CB_DUMP_BRUSH ||
13923                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
13924
13925         if (element >= NUM_FILE_ELEMENTS)
13926           element = EL_UNKNOWN;
13927
13928         // copy brush to level sketch text buffer for the R'n'D forum:
13929         // - large tiles: `xxx or `xxxx (0x60 ASCII)
13930         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
13931         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
13932         strcat(text, part);
13933       }
13934
13935       strcat(text, "\n");
13936     }
13937
13938     if (mode == CB_BRUSH_TO_CLIPBOARD ||
13939         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13940       SDL_SetClipboardText(text);
13941     else
13942       Print("%s", text);        // print brush data to console and log file
13943
13944     return;
13945   }
13946
13947   if (mode == CB_CLIPBOARD_TO_BRUSH)
13948   {
13949     if (edit_mode != ED_MODE_DRAWING)
13950       return;
13951
13952     if (!SDL_HasClipboardText())
13953     {
13954       Request("Clipboard is empty!", REQ_CONFIRM);
13955
13956       return;
13957     }
13958
13959     boolean copy_to_brush = (draw_with_brush ||
13960                              drawing_function == GADGET_ID_GRAB_BRUSH);
13961
13962     // this will delete the old brush, if already drawing with a brush
13963     if (copy_to_brush)
13964       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
13965
13966     // initialization is required for "odd" (incomplete) clipboard content
13967     for (x = 0; x < MAX_LEV_FIELDX; x++)
13968       for (y = 0; y < MAX_LEV_FIELDY; y++)
13969         brush_buffer[x][y] = EL_EMPTY;
13970
13971     brush_width  = 0;
13972     brush_height = 0;
13973     x = 0;
13974     y = 0;
13975
13976     char *clipboard_text = SDL_GetClipboardText();
13977     char *ptr = clipboard_text;
13978     boolean allow_new_row = FALSE;
13979     boolean stop = FALSE;
13980
13981     while (*ptr && !stop)
13982     {
13983       boolean prefix_found = FALSE;
13984       boolean start_new_row = FALSE;
13985
13986       // level sketch element number prefixes (may be multi-byte characters)
13987       char *prefix_list[] = { "`", "¸" };
13988       int i;
13989
13990       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
13991       {
13992         char *prefix = prefix_list[i];
13993
13994         // check if string is large enough for prefix
13995         if (strlen(ptr) < strlen(prefix))
13996         {
13997           stop = TRUE;
13998
13999           break;
14000         }
14001
14002         // check if string starts with prefix
14003         if (strPrefix(ptr, prefix))
14004         {
14005           ptr += strlen(prefix);
14006
14007           prefix_found = TRUE;
14008
14009           break;
14010         }
14011       }
14012
14013       // check if prefix found and followed by (at least) three digits
14014       if (prefix_found &&
14015           strlen(ptr) >= 3 &&
14016           ptr[0] >= '0' && ptr[0] <= '9' &&
14017           ptr[1] >= '0' && ptr[1] <= '9' &&
14018           ptr[2] >= '0' && ptr[2] <= '9')
14019       {
14020         int element = ((ptr[0] - '0') * 100 +
14021                        (ptr[1] - '0') * 10 +
14022                        (ptr[2] - '0'));
14023
14024         ptr += 3;
14025
14026         // level sketch element number might consist of four digits
14027         if (ptr[0] >= '0' && ptr[0] <= '9')
14028         {
14029           element = element * 10 + (ptr[0] - '0');
14030           ptr++;
14031         }
14032
14033         // remap some (historic, now obsolete) elements
14034         element = getMappedElement(element);
14035
14036         if (element >= NUM_FILE_ELEMENTS)
14037           element = EL_UNKNOWN;
14038
14039         brush_buffer[x][y] = element;
14040
14041         brush_width  = MAX(x + 1, brush_width);
14042         brush_height = MAX(y + 1, brush_height);
14043
14044         x++;
14045
14046         if (x >= MAX_LEV_FIELDX)
14047           start_new_row = TRUE;
14048
14049         allow_new_row = TRUE;
14050       }
14051       else
14052       {
14053         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
14054           start_new_row = TRUE;
14055
14056         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
14057       }
14058
14059       if (start_new_row)
14060       {
14061         x = 0;
14062         y++;
14063
14064         if (y >= MAX_LEV_FIELDY)
14065           stop = TRUE;
14066
14067         allow_new_row = FALSE;
14068       }
14069     }
14070
14071     SDL_free(clipboard_text);
14072
14073     if (brush_width == 0 || brush_height == 0)
14074     {
14075       Request("No level sketch found in clipboard!", REQ_CONFIRM);
14076
14077       return;
14078     }
14079
14080     if (copy_to_brush)
14081     {
14082       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
14083       int mx, my;
14084
14085       SDL_GetMouseState(&mx, &my);
14086
14087       // if inside drawing area, activate and draw brush at last mouse position
14088       if (mx >= gi->x && mx < gi->x + gi->width &&
14089           my >= gi->y && my < gi->y + gi->height)
14090         CopyBrushToCursor(last_cursor_x, last_cursor_y);
14091
14092       draw_with_brush = TRUE;
14093     }
14094     else
14095     {
14096       char request[100];
14097
14098       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
14099               brush_width, brush_height);
14100
14101       if (!Request(request, REQ_ASK))
14102         return;
14103
14104       for (x = 0; x < MAX_LEV_FIELDX; x++)
14105         for (y = 0; y < MAX_LEV_FIELDY; y++)
14106           Tile[x][y] = brush_buffer[x][y];
14107
14108       lev_fieldx = level.fieldx = brush_width;
14109       lev_fieldy = level.fieldy = brush_height;
14110
14111       boolean use_bd_engine = TRUE;
14112       boolean use_em_engine = TRUE;
14113       boolean use_sp_engine = TRUE;
14114       boolean use_mm_engine = TRUE;
14115
14116       for (x = 0; x < MAX_LEV_FIELDX; x++)
14117       {
14118         for (y = 0; y < MAX_LEV_FIELDY; y++)
14119         {
14120           int element = Tile[x][y];
14121
14122           if (!IS_BD_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
14123             use_bd_engine = FALSE;
14124
14125           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
14126             use_em_engine = FALSE;
14127
14128           if (!IS_SP_ELEMENT(element))
14129             use_sp_engine = FALSE;
14130
14131           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
14132             use_mm_engine = FALSE;
14133         }
14134       }
14135
14136       level.game_engine_type = (use_bd_engine ? GAME_ENGINE_TYPE_BD :
14137                                 use_em_engine ? GAME_ENGINE_TYPE_EM :
14138                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
14139                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
14140                                 GAME_ENGINE_TYPE_RND);
14141
14142       // update element selection list
14143       ReinitializeElementList();
14144       ModifyEditorElementList();
14145
14146       SetBorderElement();
14147
14148       DrawEditModeWindow();
14149       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14150     }
14151
14152     return;
14153   }
14154
14155   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
14156     return;
14157
14158   if (mode == CB_AREA_TO_BRUSH)
14159   {
14160     int from_lx, from_ly;
14161
14162     if (from_x > to_x)
14163       swap_numbers(&from_x, &to_x);
14164
14165     if (from_y > to_y)
14166       swap_numbers(&from_y, &to_y);
14167
14168     brush_width = to_x - from_x + 1;
14169     brush_height = to_y - from_y + 1;
14170
14171     from_lx = from_x + level_xpos;
14172     from_ly = from_y + level_ypos;
14173
14174     for (y = 0; y < brush_height; y++)
14175     {
14176       for (x = 0; x < brush_width; x++)
14177       {
14178         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
14179
14180         if (button != 1)
14181           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
14182       }
14183     }
14184
14185     if (button != 1)
14186       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14187
14188     delete_old_brush = FALSE;
14189   }
14190   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
14191            mode == CB_BRUSH_TO_LEVEL)
14192   {
14193     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
14194     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
14195     int cursor_from_x = cursor_x - brush_width / 2;
14196     int cursor_from_y = cursor_y - brush_height / 2;
14197     int border_from_x = cursor_x, border_from_y = cursor_y;
14198     int border_to_x = cursor_x, border_to_y = cursor_y;
14199
14200     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
14201       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14202
14203     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
14204         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
14205     {
14206       delete_old_brush = FALSE;
14207
14208       return;
14209     }
14210
14211     for (y = 0; y < brush_height; y++)
14212     {
14213       for (x = 0; x < brush_width; x++)
14214       {
14215         int sx = cursor_from_x + x;
14216         int sy = cursor_from_y + y;
14217         int lx = sx + level_xpos;
14218         int ly = sy + level_ypos;
14219         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
14220         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
14221                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
14222                        brush_buffer[x][y] : new_element);
14223
14224         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
14225         {
14226           if (sx < border_from_x)
14227             border_from_x = sx;
14228           else if (sx > border_to_x)
14229             border_to_x = sx;
14230           if (sy < border_from_y)
14231             border_from_y = sy;
14232           else if (sy > border_to_y)
14233             border_to_y = sy;
14234
14235           DrawBrushElement(sx, sy, element, change_level);
14236         }
14237       }
14238     }
14239
14240     if (mode != CB_DELETE_OLD_CURSOR)
14241       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
14242
14243     last_cursor_x = cursor_x;
14244     last_cursor_y = cursor_y;
14245
14246     delete_old_brush = TRUE;
14247   }
14248   else if (mode == CB_FLIP_BRUSH_X)
14249   {
14250     for (y = 0; y < brush_height; y++)
14251       for (x = 0; x < (brush_width + 1) / 2; x++)
14252         SwapFlippedTiles(&brush_buffer[x][y],
14253                          &brush_buffer[brush_width - x - 1][y], mode);
14254
14255     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14256   }
14257   else if (mode == CB_FLIP_BRUSH_Y)
14258   {
14259     for (y = 0; y < (brush_height + 1) / 2; y++)
14260       for (x = 0; x < brush_width; x++)
14261         SwapFlippedTiles(&brush_buffer[x][y],
14262                          &brush_buffer[x][brush_height - y - 1], mode);
14263
14264     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14265   }
14266   else if (mode == CB_FLIP_BRUSH_XY)
14267   {
14268     CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14269
14270     for (y = 0; y < MAX(brush_width, brush_height); y++)
14271       for (x = 0; x <= y; x++)
14272         SwapFlippedTiles(&brush_buffer[x][y],
14273                          &brush_buffer[y][x], mode);
14274
14275     swap_numbers(&brush_width, &brush_height);
14276
14277     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14278   }
14279
14280   if (mode == CB_UPDATE_BRUSH_POSITION)
14281   {
14282     last_cursor_x = from_x;
14283     last_cursor_y = from_y;
14284   }
14285 }
14286
14287 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
14288                             int button)
14289 {
14290   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
14291 }
14292
14293 static void CopyBrushToLevel(int x, int y, int button)
14294 {
14295   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
14296 }
14297
14298 static void CopyBrushToCursor(int x, int y)
14299 {
14300   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14301 }
14302
14303 static void UpdateBrushPosition(int x, int y)
14304 {
14305   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
14306 }
14307
14308 static void DeleteBrushFromCursor(void)
14309 {
14310   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14311 }
14312
14313 static void FlipBrushX(void)
14314 {
14315   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14316 }
14317
14318 static void FlipBrushY(void)
14319 {
14320   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_Y);
14321 }
14322
14323 static void RotateBrush(void)
14324 {
14325   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_XY);
14326   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14327 }
14328
14329 void DumpBrush(void)
14330 {
14331   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
14332 }
14333
14334 void DumpBrush_Small(void)
14335 {
14336   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
14337 }
14338
14339 void CopyClipboardToBrush(void)
14340 {
14341   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
14342 }
14343
14344 void CopyBrushToClipboard(void)
14345 {
14346   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
14347 }
14348
14349 void CopyBrushToClipboard_Small(void)
14350 {
14351   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
14352 }
14353
14354 void UndoLevelEditorOperation(void)
14355 {
14356   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
14357 }
14358
14359 void RedoLevelEditorOperation(void)
14360 {
14361   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14362 }
14363
14364 static void FloodFill(int from_x, int from_y, int fill_element)
14365 {
14366   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
14367 }
14368
14369 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
14370 {
14371   int from_x = from_sx2 + 2 * level_xpos;
14372   int from_y = from_sy2 + 2 * level_ypos;
14373   int max_fillx = lev_fieldx * 2;
14374   int max_filly = lev_fieldy * 2;
14375   short Fill[max_fillx][max_filly];
14376   int x, y;
14377
14378   for (x = 0; x < max_fillx; x++)
14379     for (y = 0; y < max_filly; y++)
14380       Fill[x][y] = getLevelElementHiRes(x, y);
14381
14382   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
14383                     Fill, max_fillx, max_filly);
14384
14385   for (x = 0; x < max_fillx; x++)
14386     for (y = 0; y < max_filly; y++)
14387       if (Fill[x][y] == fill_element)
14388         SetLevelElementHiRes(x, y, Fill[x][y]);
14389 }
14390
14391 // values for DrawLevelText() modes
14392 #define TEXT_INIT               0
14393 #define TEXT_SETCURSOR          1
14394 #define TEXT_WRITECHAR          2
14395 #define TEXT_BACKSPACE          3
14396 #define TEXT_NEWLINE            4
14397 #define TEXT_END                5
14398 #define TEXT_QUERY_TYPING       6
14399
14400 static int DrawLevelText(int sx, int sy, char letter, int mode)
14401 {
14402   static short delete_buffer[MAX_LEV_FIELDX];
14403   static int start_sx;
14404   static int last_sx, last_sy;
14405   static boolean typing = FALSE;
14406   int letter_element;
14407   int lx = 0, ly = 0;
14408
14409   // map lower case letters to upper case and convert special characters
14410   if (letter >= 'a' && letter <= 'z')
14411     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
14412   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
14413     letter_element = EL_CHAR_AUMLAUT;
14414   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
14415     letter_element = EL_CHAR_OUMLAUT;
14416   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
14417     letter_element = EL_CHAR_UUMLAUT;
14418   else if (letter == '^')
14419     letter_element = EL_CHAR_COPYRIGHT;
14420   else
14421     letter_element = EL_CHAR_ASCII0 + letter;
14422
14423   if (mode != TEXT_INIT)
14424   {
14425     if (!typing)
14426       return FALSE;
14427
14428     if (mode != TEXT_SETCURSOR)
14429     {
14430       sx = last_sx;
14431       sy = last_sy;
14432     }
14433
14434     lx = last_sx + level_xpos;
14435     ly = last_sy + level_ypos;
14436   }
14437
14438   switch (mode)
14439   {
14440     case TEXT_INIT:
14441       if (typing)
14442         DrawLevelText(0, 0, 0, TEXT_END);
14443
14444       typing = TRUE;
14445       start_sx = sx;
14446       last_sx = sx;
14447       last_sy = sy;
14448       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
14449       break;
14450
14451     case TEXT_SETCURSOR:
14452       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
14453       DrawAreaBorder(sx, sy, sx, sy);
14454       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
14455                      ed_tilesize, ed_tilesize);
14456       last_sx = sx;
14457       last_sy = sy;
14458       break;
14459
14460     case TEXT_WRITECHAR:
14461       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
14462       {
14463         if (new_element1 >= EL_STEEL_CHAR_START &&
14464             new_element1 <= EL_STEEL_CHAR_END)
14465           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
14466
14467         delete_buffer[sx - start_sx] = Tile[lx][ly];
14468         Tile[lx][ly] = letter_element;
14469
14470         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
14471           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
14472         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14473           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14474         else
14475           DrawLevelText(0, 0, 0, TEXT_END);
14476
14477         level.changed = TRUE;
14478       }
14479       break;
14480
14481     case TEXT_BACKSPACE:
14482       if (sx > start_sx)
14483       {
14484         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
14485         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
14486         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
14487       }
14488       break;
14489
14490     case TEXT_NEWLINE:
14491       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14492         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14493       else
14494         DrawLevelText(0, 0, 0, TEXT_END);
14495       break;
14496
14497     case TEXT_END:
14498       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14499       DrawEditorElement(sx, sy, Tile[lx][ly]);
14500       StopTextInput();
14501       typing = FALSE;
14502       break;
14503
14504     case TEXT_QUERY_TYPING:
14505       break;
14506
14507     default:
14508       break;
14509   }
14510
14511   return typing;
14512 }
14513
14514 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
14515                           int element, boolean change_level)
14516 {
14517   int lx = sx + level_xpos;
14518   int ly = sy + level_ypos;
14519
14520   if (element == -1)
14521     DrawEditorElement(sx, sy, Tile[lx][ly]);
14522   else
14523     DrawAreaBorder(sx, sy, sx, sy);
14524 }
14525
14526 static void CheckLevelBorderElement(boolean redraw_playfield)
14527 {
14528   int last_border_element = BorderElement;
14529
14530   SetBorderElement();
14531
14532   if (redraw_playfield && BorderElement != last_border_element)
14533     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14534 }
14535
14536 static void CopyLevelToUndoBuffer(int mode)
14537 {
14538   static boolean accumulated_undo = FALSE;
14539   boolean new_undo_buffer_position = TRUE;
14540   int x, y;
14541
14542   if (undo_buffer_steps == 0)
14543     accumulated_undo = FALSE;
14544
14545   switch (mode)
14546   {
14547     case UNDO_IMMEDIATE:
14548       accumulated_undo = FALSE;
14549       break;
14550
14551     case UNDO_ACCUMULATE:
14552       if (accumulated_undo)
14553         new_undo_buffer_position = FALSE;
14554       accumulated_undo = TRUE;
14555       break;
14556
14557     default:
14558       break;
14559   }
14560
14561   if (new_undo_buffer_position)
14562   {
14563     // advance position in undo buffer ring
14564     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14565
14566     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
14567       undo_buffer_steps++;
14568   }
14569
14570   // always reset redo buffer when storing level change into undo buffer
14571   redo_buffer_steps = 0;
14572
14573   for (x = 0; x < lev_fieldx; x++)
14574     for (y = 0; y < lev_fieldy; y++)
14575       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
14576
14577   // check if drawing operation forces change of border style
14578   CheckLevelBorderElement(TRUE);
14579
14580   level.changed = TRUE;
14581 }
14582
14583 static void RandomPlacement(int new_element)
14584 {
14585   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
14586   int num_free_positions = 0;
14587   int num_percentage, num_elements;
14588   int x, y;
14589
14590   ResetIntelliDraw();
14591
14592   // determine number of free positions for randomly placing the new element
14593   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
14594   {
14595     free_position[x][y] =
14596       (random_placement_background_restricted ?
14597        Tile[x][y] == random_placement_background_element :
14598        Tile[x][y] != new_element);
14599
14600     if (free_position[x][y])
14601       num_free_positions++;
14602   }
14603
14604   // determine number of new elements to place there
14605   num_percentage = num_free_positions * random_placement_value / 100;
14606   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
14607                   num_percentage : random_placement_value);
14608
14609   // if less free positions than elements to place, fill all these positions
14610   if (num_free_positions < num_elements)
14611   {
14612     for (x = 0; x < lev_fieldx; x++)
14613       for (y = 0; y < lev_fieldy; y++)
14614         if (free_position[x][y])
14615           SetElement(x, y, new_element);
14616   }
14617   else
14618   {
14619     while (num_elements > 0)
14620     {
14621       x = GetSimpleRandom(lev_fieldx);
14622       y = GetSimpleRandom(lev_fieldy);
14623
14624       // don't place element at the same position twice
14625       if (free_position[x][y])
14626       {
14627         free_position[x][y] = FALSE;
14628         SetElement(x, y, new_element);
14629         num_elements--;
14630       }
14631     }
14632   }
14633
14634   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14635   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14636 }
14637
14638 static void WrapLevel(int dx, int dy)
14639 {
14640   int wrap_dx = lev_fieldx - dx;
14641   int wrap_dy = lev_fieldy - dy;
14642   int x, y;
14643
14644   for (x = 0; x < lev_fieldx; x++)
14645     for (y = 0; y < lev_fieldy; y++)
14646       TileBackup[x][y] = Tile[x][y];
14647
14648   for (x = 0; x < lev_fieldx; x++)
14649     for (y = 0; y < lev_fieldy; y++)
14650       Tile[x][y] =
14651         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
14652
14653   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14654   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
14655 }
14656
14657 static void DrawAreaElementHighlight(boolean highlighted,
14658                                      boolean highlighted_similar)
14659 {
14660   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14661
14662   if (!highlighted)
14663     return;
14664
14665   int x, y;
14666
14667   for (x = 0; x < ed_fieldx; x++)
14668   {
14669     for (y = 0; y < ed_fieldy; y++)
14670     {
14671       boolean highlight = FALSE;
14672       int lx = x + level_xpos;
14673       int ly = y + level_ypos;
14674
14675       if (!IN_LEV_FIELD(lx, ly))
14676         continue;
14677
14678       // check if element is the same
14679       if (Tile[lx][ly] == new_element1)
14680         highlight = TRUE;
14681
14682       // check if element is similar
14683       if (highlighted_similar &&
14684           strEqual(element_info[Tile[lx][ly]].class_name,
14685                    element_info[new_element1].class_name))
14686         highlight = TRUE;
14687
14688       // check if element is matching MM style wall
14689       if (IS_MM_WALL(Tile[lx][ly]) &&
14690           map_mm_wall_element(Tile[lx][ly]) == new_element1)
14691         highlight = TRUE;
14692
14693       if (!highlight)
14694         continue;
14695
14696       if (IS_MM_WALL(Tile[lx][ly]) && !highlighted_similar)
14697       {
14698         int i;
14699
14700         for (i = 0; i < 4; i++)
14701         {
14702           if (!(MM_WALL_BITS(Tile[lx][ly]) & (1 << i)))
14703             continue;
14704
14705           int xx = x * 2 + (i % 2);
14706           int yy = y * 2 + (i / 2);
14707           int sx = SX + xx * ed_tilesize / 2;
14708           int sy = SY + yy * ed_tilesize / 2;
14709           int from_sx = sx;
14710           int from_sy = sy;
14711           int to_sx = sx + ed_tilesize / 2 - 1;
14712           int to_sy = sy + ed_tilesize / 2 - 1;
14713
14714           DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14715           DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14716           DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14717           DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14718         }
14719       }
14720       else
14721       {
14722         int sx = SX + x * ed_tilesize;
14723         int sy = SY + y * ed_tilesize;
14724         int from_sx = sx;
14725         int from_sy = sy;
14726         int to_sx = sx + ed_tilesize - 1;
14727         int to_sy = sy + ed_tilesize - 1;
14728
14729         DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14730         DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14731         DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14732         DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14733       }
14734     }
14735   }
14736 }
14737
14738 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
14739 {
14740   char *template_filename_old = getLocalLevelTemplateFilename();
14741   char *template_filename_new =
14742     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
14743
14744   if (copyFile(template_filename_old, template_filename_new) != 0)
14745     Request("Cannot copy level template!", REQ_CONFIRM);
14746
14747   free(template_filename_new);
14748 }
14749
14750 static void HandleDrawingAreas(struct GadgetInfo *gi)
14751 {
14752   static boolean started_inside_drawing_area = FALSE;
14753   static int last_sx = -1;
14754   static int last_sy = -1;
14755   static int last_sx2 = -1;
14756   static int last_sy2 = -1;
14757   int id = gi->custom_id;
14758   int type_id = gi->custom_type_id;
14759   boolean button_press_event;
14760   boolean button_release_event;
14761   boolean inside_drawing_area = !gi->event.off_borders;
14762   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
14763   int actual_drawing_function;
14764   int button = gi->event.button;
14765   int new_element = BUTTON_ELEMENT(button);
14766   int sx = gi->event.x, sy = gi->event.y;
14767   int min_sx = 0, min_sy = 0;
14768   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
14769   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
14770   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
14771   int sx2 = gi->event.mx / mini_item_xsize;
14772   int sy2 = gi->event.my / mini_item_ysize;
14773   int dx = sx2 % 2;
14774   int dy = sy2 % 2;
14775   int lx = 0, ly = 0;
14776   int x, y;
14777
14778   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
14779   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
14780
14781   // make sure to stay inside drawing area boundaries
14782   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
14783   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
14784
14785   if (draw_level)
14786   {
14787     int min_lx = 0, min_ly = 0;
14788     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
14789
14790     // get positions inside level field
14791     lx = sx + level_xpos;
14792     ly = sy + level_ypos;
14793
14794     if (!IN_LEV_FIELD(lx, ly))
14795       inside_drawing_area = FALSE;
14796
14797     // make sure to stay inside level field boundaries
14798     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
14799     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
14800
14801     // correct drawing area positions accordingly
14802     sx = lx - level_xpos;
14803     sy = ly - level_ypos;
14804   }
14805
14806   // also correct MM wall-sized (double) drawing area positions accordingly
14807   if (sx2 / 2 < sx || sx2 / 2 > sx)
14808   {
14809     dx = (sx2 / 2 < sx ? 0 : 1);
14810     sx2 = sx * 2 + dx;
14811   }
14812   if (sy2 / 2 < sy || sy2 / 2 > sy)
14813   {
14814     dy = (sy2 / 2 < sy ? 0 : 1);
14815     sy2 = sy * 2 + dy;
14816   }
14817
14818   if (!button_press_event && !button_release_event)
14819   {
14820     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
14821     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
14822                              isHiresTileElement(old_element) &&
14823                              isHiresDrawElement(new_element));
14824
14825     // prevent handling events for every pixel position when moving mouse
14826     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
14827         (sx2 == last_sx2 && sy2 == last_sy2))
14828       return;
14829   }
14830
14831   last_sx = sx;
14832   last_sy = sy;
14833   last_sx2 = sx2;
14834   last_sy2 = sy2;
14835
14836   if (button_press_event)
14837     started_inside_drawing_area = inside_drawing_area;
14838
14839   if (!started_inside_drawing_area)
14840     return;
14841
14842   if (!IS_VALID_BUTTON(button))
14843     return;
14844
14845   // handle info callback for each invocation of action callback
14846   gi->callback_info(gi);
14847
14848   // automatically switch to 'single item' drawing mode, if needed
14849   actual_drawing_function =
14850     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
14851      drawing_function : GADGET_ID_SINGLE_ITEMS);
14852
14853   // clicking into drawing area with pressed Control key picks element
14854   if (GetKeyModState() & KMOD_Control)
14855   {
14856     last_drawing_function = drawing_function;
14857     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
14858   }
14859
14860   if (GetKeyModState() & KMOD_Shift)
14861   {
14862     if (button_press_event || button_release_event)
14863       ResetIntelliDraw();
14864   }
14865
14866   SetDrawModeHiRes(-1);         // reset to normal draw mode
14867
14868   switch (actual_drawing_function)
14869   {
14870     case GADGET_ID_SINGLE_ITEMS:
14871       if (draw_level)
14872       {
14873         if (button_release_event)
14874         {
14875           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14876
14877           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
14878               !inside_drawing_area)
14879             DeleteBrushFromCursor();
14880
14881           break;
14882         }
14883
14884         if (draw_with_brush)
14885         {
14886           CopyBrushToLevel(sx, sy, button);
14887         }
14888         else
14889         {
14890           SetDrawModeHiRes(new_element);
14891
14892           if (IS_PLAYER_ELEMENT(new_element) || IS_MM_MCDUFFIN(new_element))
14893           {
14894             // remove player at old position
14895             for (y = 0; y < lev_fieldy; y++)
14896             {
14897               for (x = 0; x < lev_fieldx; x++)
14898               {
14899                 int old_element = Tile[x][y];
14900
14901                 if (IS_PLAYER_ELEMENT(old_element) &&
14902                     IS_PLAYER_ELEMENT(new_element))
14903                 {
14904                   int replaced_with_element =
14905                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
14906                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
14907
14908                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
14909                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
14910
14911                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
14912                      old_element == EL_PLAYER_1 ? EL_EMPTY :
14913
14914                      new_element >= EL_PLAYER_1 &&
14915                      new_element <= EL_PLAYER_4 &&
14916                      new_element == old_element ? EL_EMPTY :
14917
14918                      old_element);
14919
14920                   SetElement(x, y, replaced_with_element);
14921                 }
14922                 else if (IS_MM_MCDUFFIN(old_element) &&
14923                          IS_MM_MCDUFFIN(new_element))
14924                 {
14925                   // remove McDuffin at old position
14926                   SetElement(x, y, EL_EMPTY);
14927                 }
14928               }
14929             }
14930           }
14931
14932           SetElementButton(lx, ly, dx, dy, new_element, button);
14933         }
14934       }
14935       else if (!button_release_event)
14936       {
14937         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14938
14939         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
14940           DrawMiniGraphicExt(drawto,
14941                              gi->x + sx * MINI_TILEX,
14942                              gi->y + sy * MINI_TILEY,
14943                              el2edimg(new_element));
14944         else
14945           DrawFixedGraphicExt(drawto,
14946                               gi->x + sx * TILEX,
14947                               gi->y + sy * TILEY,
14948                               el2edimg(new_element), 0);
14949
14950         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14951           new_element = GFX_ELEMENT(new_element);
14952
14953         drawingarea_info[type_id].value[pos] = new_element;
14954
14955         CopyElementPropertiesToGame(properties_element);
14956
14957         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14958         {
14959           UpdateCustomElementGraphicGadgets();
14960
14961           FrameCounter = 0;     // restart animation frame counter
14962         }
14963       }
14964       break;
14965
14966     case GADGET_ID_CONNECTED_ITEMS:
14967       {
14968         static int last_sx = -1;
14969         static int last_sy = -1;
14970
14971         if (button_release_event)
14972           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14973
14974         SetDrawModeHiRes(new_element);
14975
14976         if (getDrawModeHiRes())
14977         {
14978           sx = sx2;
14979           sy = sy2;
14980         }
14981
14982         if (!button_press_event)
14983           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
14984
14985         last_sx = sx;
14986         last_sy = sy;
14987       }
14988       break;
14989
14990     case GADGET_ID_LINE:
14991     case GADGET_ID_ARC:
14992     case GADGET_ID_RECTANGLE:
14993     case GADGET_ID_FILLED_BOX:
14994       SetDrawModeHiRes(new_element);
14995
14996       if (getDrawModeHiRes())
14997       {
14998         sx = sx2;
14999         sy = sy2;
15000       }
15001       // FALLTHROUGH
15002     case GADGET_ID_GRAB_BRUSH:
15003     case GADGET_ID_TEXT:
15004       {
15005         static int last_sx = -1;
15006         static int last_sy = -1;
15007         static int start_sx = -1;
15008         static int start_sy = -1;
15009         void (*draw_func)(int, int, int, int, int, boolean);
15010
15011         if (drawing_function == GADGET_ID_LINE)
15012           draw_func = DrawLine;
15013         else if (drawing_function == GADGET_ID_ARC)
15014           draw_func = DrawArc;
15015         else if (drawing_function == GADGET_ID_RECTANGLE)
15016           draw_func = DrawBox;
15017         else if (drawing_function == GADGET_ID_FILLED_BOX)
15018           draw_func = DrawFilledBox;
15019         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
15020           draw_func = SelectArea;
15021         else // (drawing_function == GADGET_ID_TEXT)
15022           draw_func = SetTextCursor;
15023
15024         if (button_press_event)
15025         {
15026           draw_func(sx, sy, sx, sy, new_element, FALSE);
15027           start_sx = last_sx = sx;
15028           start_sy = last_sy = sy;
15029
15030           if (drawing_function == GADGET_ID_TEXT)
15031             DrawLevelText(0, 0, 0, TEXT_END);
15032         }
15033         else if (button_release_event)
15034         {
15035           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
15036           if (drawing_function == GADGET_ID_GRAB_BRUSH)
15037           {
15038             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
15039             CopyBrushToCursor(sx, sy);
15040             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
15041                           MB_LEFTBUTTON);
15042             draw_with_brush = TRUE;
15043           }
15044           else if (drawing_function == GADGET_ID_TEXT)
15045             DrawLevelText(sx, sy, 0, TEXT_INIT);
15046           else
15047             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
15048         }
15049         else if (last_sx != sx || last_sy != sy)
15050         {
15051           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
15052           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
15053             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
15054           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
15055           last_sx = sx;
15056           last_sy = sy;
15057         }
15058       }
15059       break;
15060
15061     case GADGET_ID_FLOOD_FILL:
15062       if (button_press_event && Tile[lx][ly] != new_element)
15063       {
15064         if (IS_MM_WALL_EDITOR(new_element))
15065           FloodFillWall_MM(sx2, sy2, new_element);
15066         else
15067           FloodFill(lx, ly, new_element);
15068
15069         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15070         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
15071       }
15072       break;
15073
15074     case GADGET_ID_PICK_ELEMENT:
15075       if (button_release_event)
15076         ClickOnGadget(level_editor_gadget[last_drawing_function],
15077                       MB_LEFTBUTTON);
15078       else if (draw_level)
15079         PickDrawingElement(button, Tile[lx][ly]);
15080       else
15081       {
15082         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
15083
15084         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
15085       }
15086
15087     default:
15088       break;
15089   }
15090
15091   // do not mark level as modified for certain non-level-changing gadgets
15092   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
15093        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
15094       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
15095       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
15096     return;
15097
15098   level.changed = TRUE;
15099 }
15100
15101 static void HandleCounterButtons(struct GadgetInfo *gi)
15102 {
15103   int gadget_id = gi->custom_id;
15104   int counter_id = gi->custom_type_id;
15105   int button = gi->event.button;
15106   int *counter_value = counterbutton_info[counter_id].value;
15107   int step = BUTTON_STEPSIZE(button) *
15108     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
15109
15110   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
15111   {
15112     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
15113     boolean released = (gi->event.type == GD_EVENT_RELEASED);
15114     boolean level_changed = LevelChanged();
15115
15116     if ((level_changed && pressed) || (!level_changed && released))
15117       return;
15118
15119     if (level_changed && !Request("Level has changed! Discard changes?",
15120                                   REQ_ASK))
15121     {
15122       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
15123         ModifyEditorCounterValue(counter_id, *counter_value);
15124
15125       return;
15126     }
15127   }
15128
15129   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
15130     *counter_value = gi->textinput.number_value;
15131   else
15132     ModifyEditorCounterValue(counter_id, *counter_value + step);
15133
15134   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
15135   {
15136     int last_game_engine_type = level.game_engine_type;
15137
15138     LoadLevel(level_nr);
15139     LoadScore(level_nr);
15140
15141     SaveLevelSetup_SeriesInfo();
15142
15143     TapeErase();
15144
15145     ResetUndoBuffer();
15146     DrawEditModeWindow();
15147
15148     if (level.game_engine_type != last_game_engine_type)
15149     {
15150       // update element selection list
15151       ReinitializeElementList();
15152       ModifyEditorElementList();
15153     }
15154
15155     return;
15156   }
15157
15158   switch (counter_id)
15159   {
15160     case ED_COUNTER_ID_YAMYAM_CONTENT:
15161       DrawYamYamContentAreas();
15162       break;
15163
15164     case ED_COUNTER_ID_BALL_CONTENT:
15165       DrawMagicBallContentAreas();
15166       break;
15167
15168     case ED_COUNTER_ID_ANDROID_CONTENT:
15169       DrawAndroidElementArea();
15170       break;
15171
15172     case ED_COUNTER_ID_GROUP_CONTENT:
15173       DrawGroupElementArea();
15174       CopyGroupElementPropertiesToGame(properties_element);
15175       break;
15176
15177     case ED_COUNTER_ID_INVENTORY_SIZE:
15178       DrawPlayerInitialInventoryArea(properties_element);
15179       break;
15180
15181     case ED_COUNTER_ID_MM_BALL_CONTENT:
15182       DrawMMBallContentArea();
15183       break;
15184
15185     case ED_COUNTER_ID_ENVELOPE_XSIZE:
15186     case ED_COUNTER_ID_ENVELOPE_YSIZE:
15187       DrawEnvelopeTextArea(-1);
15188       break;
15189
15190     case ED_COUNTER_ID_LEVEL_XSIZE:
15191     case ED_COUNTER_ID_LEVEL_YSIZE:
15192       lev_fieldx = level.fieldx;
15193       lev_fieldy = level.fieldy;
15194
15195       // check if resizing of level results in change of border border
15196       SetBorderElement();
15197
15198       break;
15199
15200     default:
15201       break;
15202   }
15203
15204   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
15205        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
15206       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
15207        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
15208     CopyElementPropertiesToGame(properties_element);
15209
15210   // do not mark level as modified for certain non-level-changing gadgets
15211   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
15212        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
15213       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
15214        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
15215     return;
15216
15217   level.changed = TRUE;
15218 }
15219
15220 static void HandleTextInputGadgets(struct GadgetInfo *gi)
15221 {
15222   int type_id = gi->custom_type_id;
15223
15224   strcpy(textinput_info[type_id].value, gi->textinput.value);
15225
15226   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
15227   {
15228     CopyElementPropertiesToGame(properties_element);
15229
15230     ModifyEditorElementList();  // update changed button info text
15231   }
15232
15233   // do not mark level as modified for certain non-level-changing gadgets
15234   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
15235       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
15236     return;
15237
15238   level.changed = TRUE;
15239 }
15240
15241 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
15242 {
15243   int type_id = gi->custom_type_id;
15244
15245   strncpy(textarea_info[type_id].value, gi->textarea.value,
15246           MAX_ENVELOPE_TEXT_LEN);
15247   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
15248
15249   level.changed = TRUE;
15250 }
15251
15252 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
15253 {
15254   int type_id = gi->custom_type_id;
15255   int value_old = *selectbox_info[type_id].value;
15256   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
15257
15258   *selectbox_info[type_id].value = value_new;
15259
15260   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
15261   {
15262     DrawLevelConfigWindow();
15263   }
15264   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
15265   {
15266     element_info[properties_element].current_change_page = gi->selectbox.index;
15267
15268     DrawPropertiesWindow();
15269   }
15270   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
15271             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
15272            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
15273             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
15274            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
15275   {
15276     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
15277     {
15278       // when changing action type, also check action mode and action arg
15279       if (value_old != value_new)
15280         setSelectboxSpecialActionVariablesIfNeeded();
15281
15282       DrawPropertiesChange();
15283     }
15284
15285     CopyElementPropertiesToGame(properties_element);
15286   }
15287   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
15288   {
15289     // show or hide "engine" tabulator depending on game engine type
15290     DrawLevelConfigWindow();
15291
15292     // update element selection list depending on game engine type
15293     ReinitializeElementList();
15294     ModifyEditorElementList();
15295   }
15296   else if (type_id == ED_SELECTBOX_ID_BD_SCHEDULING_TYPE)
15297   {
15298     // update BD cycle delay counter gadgets depending on BD scheduling type
15299     DrawLevelConfigWindow();
15300   }
15301
15302   // do not mark level as modified for certain non-level-changing gadgets
15303   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
15304       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
15305     return;
15306
15307   level.changed = TRUE;
15308 }
15309
15310 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
15311 {
15312   int type_id = gi->custom_type_id;
15313   int i;
15314
15315   if (type_id >= ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST &&
15316       type_id <= ED_TAB_BUTTON_ID_LEVELCONFIG_LAST)
15317   {
15318     edit_mode_levelconfig = gi->custom_type_id;
15319
15320     DrawLevelConfigWindow();
15321   }
15322   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
15323            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
15324   {
15325     edit_mode_properties = gi->custom_type_id;
15326
15327     DrawPropertiesWindow();
15328   }
15329   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
15330            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
15331   {
15332     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
15333
15334     // backup original "level.field" (needed to track playfield changes)
15335     CopyPlayfield(level.field, TileBackup);
15336
15337     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
15338     CopyPlayfield(Tile, level.field);
15339
15340     if (new_template ||
15341         Request("Save this template and kill the old?", REQ_ASK))
15342       SaveLevelTemplate();
15343
15344     if (new_template)
15345       Request("Template saved!", REQ_CONFIRM);
15346
15347     // restore original "level.field" (needed to track playfield changes)
15348     CopyPlayfield(TileBackup, level.field);
15349   }
15350   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
15351   {
15352     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
15353
15354     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
15355         leveldir_current->readonly)
15356     {
15357       Request("This level set is read-only!", REQ_CONFIRM);
15358
15359       return;
15360     }
15361
15362     if (strEqual(levelset_name, ""))
15363     {
15364       Request("Please enter level set title!", REQ_CONFIRM);
15365
15366       return;
15367     }
15368
15369     if (strEqual(levelset_author, ""))
15370     {
15371       Request("Please enter level set author!", REQ_CONFIRM);
15372
15373       return;
15374     }
15375
15376     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
15377     {
15378       if (UpdateUserLevelSet(levelset_subdir,
15379                              levelset_name,
15380                              levelset_author,
15381                              levelset_num_levels))
15382       {
15383         Request("Level set updated!", REQ_CONFIRM);
15384       }
15385       else
15386       {
15387         Request("Updating level set failed!", REQ_CONFIRM);
15388       }
15389     }
15390     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
15391     {
15392       if (level.changed && !Request("Level has changed! Discard changes?",
15393                                      REQ_ASK))
15394         return;
15395
15396       if (CreateUserLevelSet(levelset_subdir,
15397                              levelset_name,
15398                              levelset_author,
15399                              levelset_num_levels,
15400                              levelset_use_levelset_artwork))
15401       {
15402         if (levelset_copy_level_template)
15403           CopyLevelTemplateToUserLevelSet(levelset_subdir);
15404
15405         Request("New level set created!", REQ_CONFIRM);
15406
15407         AddUserLevelSetToLevelInfo(levelset_subdir);
15408         ChangeEditorToLevelSet(levelset_subdir);
15409       }
15410       else
15411       {
15412         Request("Creating new level set failed!", REQ_CONFIRM);
15413       }
15414     }
15415   }
15416   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
15417            custom_element.num_change_pages < MAX_CHANGE_PAGES)
15418   {
15419     struct ElementInfo *ei = &element_info[properties_element];
15420
15421     // when modifying custom element, ask for copying level template
15422     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15423       return;
15424
15425     setElementChangePages(ei, ei->num_change_pages + 1);
15426
15427     // set new change page to be new current change page
15428     ei->current_change_page = ei->num_change_pages - 1;
15429     ei->change = &ei->change_page[ei->current_change_page];
15430
15431     setElementChangeInfoToDefaults(ei->change);
15432
15433     DrawPropertiesWindow();
15434
15435     level.changed = TRUE;
15436   }
15437   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
15438            custom_element.num_change_pages > MIN_CHANGE_PAGES)
15439   {
15440     struct ElementInfo *ei = &element_info[properties_element];
15441
15442     // when modifying custom element, ask for copying level template
15443     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15444       return;
15445
15446     // copy all change pages after change page to be deleted
15447     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
15448       ei->change_page[i] = ei->change_page[i + 1];
15449
15450     setElementChangePages(ei, ei->num_change_pages - 1);
15451
15452     DrawPropertiesWindow();
15453
15454     level.changed = TRUE;
15455   }
15456 }
15457
15458 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
15459 {
15460   int type_id = gi->custom_type_id;
15461
15462   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
15463       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
15464   {
15465     struct ElementInfo *ei = &element_info[properties_element];
15466     int step = BUTTON_STEPSIZE(gi->event.button);
15467
15468     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
15469     ei->current_change_page += step;
15470
15471     if (ei->current_change_page < 0)
15472       ei->current_change_page = 0;
15473     else if (ei->current_change_page >= ei->num_change_pages)
15474       ei->current_change_page = ei->num_change_pages - 1;
15475
15476     DrawPropertiesWindow();
15477   }
15478   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
15479            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15480   {
15481     struct ElementInfo *ei = &element_info[properties_element];
15482     int current_change_page = ei->current_change_page;
15483
15484     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
15485     {
15486       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
15487         ei->change_page[current_change_page];
15488     }
15489     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15490     {
15491       // when modifying custom element, ask for copying level template
15492       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15493         return;
15494
15495       ei->change_page[current_change_page] =
15496         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
15497
15498       level.changed = TRUE;
15499     }
15500
15501     DrawPropertiesWindow();
15502   }
15503 }
15504
15505 static void HandleRadiobuttons(struct GadgetInfo *gi)
15506 {
15507   int type_id = gi->custom_type_id;
15508
15509   *radiobutton_info[type_id].value =
15510     radiobutton_info[type_id].checked_value;
15511
15512   // do not mark level as modified for certain non-level-changing gadgets
15513   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
15514       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
15515     return;
15516
15517   level.changed = TRUE;
15518 }
15519
15520 static void HandleCheckbuttons(struct GadgetInfo *gi)
15521 {
15522   int type_id = gi->custom_type_id;
15523
15524   *checkbutton_info[type_id].value ^= TRUE;
15525
15526   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
15527       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
15528       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
15529       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
15530          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
15531         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
15532          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
15533        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
15534   {
15535     CopyElementPropertiesToGame(properties_element);
15536   }
15537
15538   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
15539   {
15540     UpdateCustomElementGraphicGadgets();
15541   }
15542   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
15543            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
15544   {
15545     boolean template_related_changes_found = FALSE;
15546     int i;
15547
15548     // check if any custom, group or empty elements have been changed
15549     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
15550       if ((IS_CUSTOM_ELEMENT(i) ||
15551            IS_GROUP_ELEMENT(i) ||
15552            IS_EMPTY_ELEMENT(i)) &&
15553           element_info[i].modified_settings)
15554         template_related_changes_found = TRUE;
15555
15556     if (level.use_custom_template &&
15557         !fileExists(getGlobalLevelTemplateFilename()))
15558     {
15559       Request("No level template found!", REQ_CONFIRM);
15560
15561       level.use_custom_template = FALSE;
15562
15563       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15564
15565       return;
15566     }
15567
15568     if (level.use_custom_template &&
15569         template_related_changes_found &&
15570         !Request("Discard changes and use level template?", REQ_ASK))
15571     {
15572       level.use_custom_template = FALSE;
15573
15574       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15575
15576       return;
15577     }
15578
15579     if (!level.use_custom_template &&
15580         Request("Copy settings from level template?", REQ_ASK))
15581     {
15582       return;
15583     }
15584
15585     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
15586
15587     DrawEditModeWindow();
15588   }
15589   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
15590   {
15591     if (setup.editor.use_template_for_new_levels &&
15592         !fileExists(getGlobalLevelTemplateFilename()))
15593     {
15594       Request("No level template found!", REQ_CONFIRM);
15595
15596       return;
15597     }
15598
15599     if (setup.editor.use_template_for_new_levels &&
15600         level.changed &&
15601         !Request("Discard level and load template?", REQ_ASK))
15602     {
15603       return;
15604     }
15605
15606     if (!setup.editor.use_template_for_new_levels &&
15607         level.changed &&
15608         !Request("Discard level and use empty level?", REQ_ASK))
15609     {
15610       return;
15611     }
15612
15613     LoadLevel(level_nr);
15614     LoadScore(level_nr);
15615
15616     TapeErase();
15617
15618     ResetUndoBuffer();
15619     DrawEditModeWindow();
15620   }
15621   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
15622   {
15623     SetAutomaticNumberOfGemsNeeded();
15624   }
15625
15626   // do not mark level as modified for certain non-level-changing gadgets
15627   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
15628        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
15629       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
15630        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
15631        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
15632       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
15633     return;
15634
15635   level.changed = TRUE;
15636 }
15637
15638 static void HandleControlButtons(struct GadgetInfo *gi)
15639 {
15640   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
15641   static int last_edit_mode = ED_MODE_DRAWING;
15642   static int last_custom_copy_mode = -1;
15643   static int last_button = 0;
15644   int id = gi->custom_id;
15645   int button = gi->event.button;
15646   int step = BUTTON_STEPSIZE(button);
15647   int new_element = BUTTON_ELEMENT(button);
15648   int last_properties_element = properties_element;
15649   int x, y;
15650
15651   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
15652     DrawLevelText(0, 0, 0, TEXT_END);
15653
15654   if (id < ED_NUM_CTRL1_BUTTONS &&
15655       id != GADGET_ID_SINGLE_ITEMS &&
15656       id != GADGET_ID_PICK_ELEMENT &&
15657       edit_mode != ED_MODE_DRAWING &&
15658       drawing_function != GADGET_ID_PICK_ELEMENT &&
15659       !(GetKeyModState() & KMOD_Control))
15660     ChangeEditModeWindow(ED_MODE_DRAWING);
15661
15662   // element copy mode active, but no element button pressed => deactivate
15663   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
15664     last_custom_copy_mode = -1;
15665
15666   // when showing palette on element buttons, change element of button used
15667   if (editor.palette.show_on_element_buttons &&
15668       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
15669   {
15670     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
15671
15672     id = GADGET_ID_PALETTE;
15673   }
15674
15675   switch (id)
15676   {
15677     case GADGET_ID_SCROLL_LEFT:
15678       if (level_xpos >= 0)
15679       {
15680         if (lev_fieldx < ed_fieldx - 2)
15681           break;
15682
15683         level_xpos -= step;
15684         if (level_xpos < -1)
15685           level_xpos = -1;
15686         if (button == 1)
15687           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
15688         else
15689           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15690
15691         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15692                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15693       }
15694       break;
15695
15696     case GADGET_ID_SCROLL_RIGHT:
15697       if (level_xpos <= lev_fieldx - ed_fieldx)
15698       {
15699         if (lev_fieldx < ed_fieldx - 2)
15700           break;
15701
15702         level_xpos += step;
15703         if (level_xpos > lev_fieldx - ed_fieldx + 1)
15704           level_xpos = lev_fieldx - ed_fieldx + 1;
15705         if (button == 1)
15706           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
15707         else
15708           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15709
15710         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15711                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15712       }
15713       break;
15714
15715     case GADGET_ID_SCROLL_UP:
15716       if (level_ypos >= 0)
15717       {
15718         if (lev_fieldy < ed_fieldy - 2)
15719           break;
15720
15721         level_ypos -= step;
15722         if (level_ypos < -1)
15723           level_ypos = -1;
15724         if (button == 1)
15725           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
15726         else
15727           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15728
15729         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15730                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15731       }
15732       break;
15733
15734     case GADGET_ID_SCROLL_DOWN:
15735       if (level_ypos <= lev_fieldy - ed_fieldy)
15736       {
15737         if (lev_fieldy < ed_fieldy - 2)
15738           break;
15739
15740         level_ypos += step;
15741         if (level_ypos > lev_fieldy - ed_fieldy + 1)
15742           level_ypos = lev_fieldy - ed_fieldy + 1;
15743         if (button == 1)
15744           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
15745         else
15746           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15747
15748         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15749                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15750       }
15751       break;
15752
15753     case GADGET_ID_SCROLL_HORIZONTAL:
15754       level_xpos = gi->event.item_position - 1;
15755
15756       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15757       BackToFront();
15758
15759       break;
15760
15761     case GADGET_ID_SCROLL_VERTICAL:
15762       level_ypos = gi->event.item_position - 1;
15763
15764       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15765       BackToFront();
15766
15767       break;
15768
15769     case GADGET_ID_SCROLL_LIST_UP:
15770     case GADGET_ID_SCROLL_LIST_DOWN:
15771     case GADGET_ID_SCROLL_LIST_VERTICAL:
15772       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
15773         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
15774       else
15775       {
15776         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
15777         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15778
15779         if (element_shift < 0)
15780           element_shift = 0;
15781         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15782           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15783
15784         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15785                      GDI_SCROLLBAR_ITEM_POSITION,
15786                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15787       }
15788
15789       ModifyEditorElementList();
15790
15791       break;
15792
15793     case GADGET_ID_PROPERTIES:
15794       // always switch off element properties when they are already displayed
15795       last_properties_element = new_element;
15796     case GADGET_ID_ELEMENT_LEFT:
15797     case GADGET_ID_ELEMENT_MIDDLE:
15798     case GADGET_ID_ELEMENT_RIGHT:
15799       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
15800                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
15801                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
15802                             new_element);
15803
15804       if (edit_mode != ED_MODE_PROPERTIES)
15805       {
15806         last_edit_mode = edit_mode;
15807
15808         ChangeEditModeWindow(ED_MODE_PROPERTIES);
15809
15810         last_level_drawing_function = drawing_function;
15811         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
15812                       MB_LEFTBUTTON);
15813       }
15814       else if (properties_element != last_properties_element)
15815       {
15816         DrawEditModeWindow();
15817       }
15818       else
15819       {
15820         ChangeEditModeWindow(ED_MODE_DRAWING);
15821
15822         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
15823                       MB_LEFTBUTTON);
15824       }
15825       break;
15826
15827     case GADGET_ID_PALETTE:
15828       if (edit_mode != ED_MODE_PALETTE)
15829       {
15830         last_edit_mode = edit_mode;
15831
15832         ChangeEditModeWindow(ED_MODE_PALETTE);
15833       }
15834       else
15835       {
15836         ChangeEditModeWindow(last_edit_mode);
15837       }
15838       break;
15839
15840     case GADGET_ID_WRAP_LEFT:
15841       WrapLevel(-step, 0);
15842       break;
15843
15844     case GADGET_ID_WRAP_RIGHT:
15845       WrapLevel(step, 0);
15846       break;
15847
15848     case GADGET_ID_WRAP_UP:
15849       WrapLevel(0, -step);
15850       break;
15851
15852     case GADGET_ID_WRAP_DOWN:
15853       WrapLevel(0, step);
15854       break;
15855
15856     case GADGET_ID_SINGLE_ITEMS:
15857     case GADGET_ID_CONNECTED_ITEMS:
15858     case GADGET_ID_LINE:
15859     case GADGET_ID_ARC:
15860     case GADGET_ID_TEXT:
15861     case GADGET_ID_RECTANGLE:
15862     case GADGET_ID_FILLED_BOX:
15863     case GADGET_ID_FLOOD_FILL:
15864     case GADGET_ID_GRAB_BRUSH:
15865     case GADGET_ID_PICK_ELEMENT:
15866       if (drawing_function != GADGET_ID_PICK_ELEMENT)
15867         last_drawing_function = drawing_function;
15868       drawing_function = id;
15869       draw_with_brush = FALSE;
15870       break;
15871
15872     case GADGET_ID_RANDOM_PLACEMENT:
15873       RandomPlacement(new_element);
15874       break;
15875
15876     case GADGET_ID_ZOOM:
15877       // zoom level editor tile size in or out (or reset to default size)
15878       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
15879                      button == 2 ? ed_tilesize_default :
15880                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
15881
15882       // when using touch device, cycle through all zoom tilesizes
15883       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
15884         ed_tilesize = MICRO_TILESIZE;
15885
15886       // limit zoom level by upper and lower bound
15887       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
15888
15889       InitZoomLevelSettings(ed_tilesize);
15890
15891       if (edit_mode == ED_MODE_DRAWING)
15892       {
15893         DrawDrawingWindow();
15894
15895         // redraw zoom gadget info text
15896         PrintEditorGadgetInfoText(level_editor_gadget[id]);
15897       }
15898
15899       // save current editor zoom tilesize
15900       SaveSetup_AutoSetup();
15901
15902       break;
15903
15904     case GADGET_ID_CUSTOM_COPY_FROM:
15905     case GADGET_ID_CUSTOM_COPY_TO:
15906     case GADGET_ID_CUSTOM_EXCHANGE:
15907       last_custom_copy_mode = id;
15908       last_drawing_function = drawing_function;
15909       break;
15910
15911     case GADGET_ID_CUSTOM_COPY:
15912       CopyCustomElement(properties_element, -1, id);
15913       break;
15914
15915     case GADGET_ID_CUSTOM_PASTE:
15916       CopyCustomElement(-1, properties_element, id);
15917       break;
15918
15919     case GADGET_ID_UNDO:
15920       if (button < 0)   // keep button value (even if modifier keys are pressed)
15921         button = -button;
15922       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
15923         button = 3;
15924
15925       if (button == 1 && undo_buffer_steps == 0)
15926       {
15927         Request("Undo buffer empty!", REQ_CONFIRM);
15928
15929         break;
15930       }
15931       else if (button == 2)
15932       {
15933         break;
15934       }
15935       else if (button == 3 && redo_buffer_steps == 0)
15936       {
15937         Request("Redo buffer empty!", REQ_CONFIRM);
15938
15939         break;
15940       }
15941
15942       if (edit_mode != ED_MODE_DRAWING)
15943         ChangeEditModeWindow(ED_MODE_DRAWING);
15944
15945       if (button == 1)
15946       {
15947         // undo
15948
15949         undo_buffer_position =
15950           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
15951
15952         undo_buffer_steps--;
15953         redo_buffer_steps++;
15954       }
15955       else
15956       {
15957         // redo
15958
15959         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
15960
15961         undo_buffer_steps++;
15962         redo_buffer_steps--;
15963       }
15964
15965       for (x = 0; x < lev_fieldx; x++)
15966         for (y = 0; y < lev_fieldy; y++)
15967           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
15968
15969       // check if undo operation forces change of border style
15970       CheckLevelBorderElement(FALSE);
15971
15972       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15973
15974       break;
15975
15976     case GADGET_ID_CONF:
15977       if (edit_mode != ED_MODE_LEVELCONFIG)
15978       {
15979         last_edit_mode = edit_mode;
15980
15981         ChangeEditModeWindow(ED_MODE_LEVELCONFIG);
15982       }
15983       else
15984       {
15985         ChangeEditModeWindow(ED_MODE_DRAWING);
15986       }
15987       break;
15988
15989     case GADGET_ID_CLEAR:
15990       if (edit_mode != ED_MODE_DRAWING)
15991         ChangeEditModeWindow(ED_MODE_DRAWING);
15992
15993       for (x = 0; x < MAX_LEV_FIELDX; x++)
15994         for (y = 0; y < MAX_LEV_FIELDY; y++)
15995           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
15996
15997       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
15998
15999       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
16000       break;
16001
16002     case GADGET_ID_SAVE:
16003     {
16004       // saving read-only levels into personal level set modifies global vars
16005       // "leveldir_current" and "level_nr"; restore them after saving level
16006       LevelDirTree *leveldir_former = leveldir_current;
16007       int level_nr_former = level_nr;
16008       char *level_filename;
16009       boolean new_level;
16010
16011       if (leveldir_current->readonly &&
16012           !PrepareSavingIntoPersonalLevelSet())
16013         break;
16014
16015       level_filename = getDefaultLevelFilename(level_nr);
16016       new_level = !fileExists(level_filename);
16017
16018       if (new_level ||
16019           Request("Save this level and kill the old?", REQ_ASK))
16020       {
16021         if (leveldir_former->readonly)
16022           ModifyLevelConfigForSavingIntoPersonalLevelSet(leveldir_former->name);
16023
16024         SetAutomaticNumberOfGemsNeeded();
16025
16026         CopyPlayfield(Tile, level.field);
16027         SaveLevel(level_nr);
16028
16029         level.changed = FALSE;
16030
16031         if (new_level)
16032         {
16033           char level_saved_msg[64];
16034
16035           if (leveldir_former->readonly)
16036             sprintf(level_saved_msg,
16037                     "Level saved as level %d into personal level set!",
16038                     level_nr);
16039           else
16040             strcpy(level_saved_msg, "Level saved!");
16041
16042           Request(level_saved_msg, REQ_CONFIRM);
16043         }
16044       }
16045
16046       // "cd" back to copied-from levelset (in case of saved read-only level)
16047       leveldir_current = leveldir_former;
16048       level_nr = level_nr_former;
16049
16050       break;
16051     }
16052
16053     case GADGET_ID_TEST:
16054       if (LevelChanged())
16055         level.game_version = GAME_VERSION_ACTUAL;
16056
16057       CopyPlayfield(level.field, TileBackup);
16058       CopyPlayfield(Tile, level.field);
16059
16060       CopyNativeLevel_RND_to_Native(&level);
16061
16062       UnmapLevelEditorGadgets();
16063       UndrawSpecialEditorDoor();
16064
16065       CloseDoor(DOOR_CLOSE_ALL);
16066
16067       // needed before playing if editor playfield area has different size
16068       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
16069
16070       // redraw_mask = REDRAW_ALL;
16071
16072       level_editor_test_game = TRUE;
16073
16074       StartGameActions(FALSE, setup.autorecord, level.random_seed);
16075
16076       break;
16077
16078     case GADGET_ID_EXIT:
16079       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
16080       break;
16081
16082     default:
16083       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
16084           id <= GADGET_ID_ELEMENTLIST_LAST)
16085       {
16086         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
16087
16088         new_element = editor_elements[element_position + element_shift];
16089
16090         if (IS_EDITOR_CASCADE(new_element))
16091         {
16092           int i;
16093
16094           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
16095           {
16096             int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
16097             boolean *cascade_value = editor_elements_info[i].setup_cascade_value;
16098
16099             if (*cascade_element == new_element)
16100             {
16101               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
16102               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
16103
16104               // update element selection list
16105               ReinitializeElementList();
16106               ModifyEditorElementList();
16107
16108               // update cascading gadget info text
16109               PrintEditorGadgetInfoText(level_editor_gadget[id]);
16110
16111               // save current editor cascading state
16112               SaveSetup_EditorCascade();
16113
16114               break;
16115             }
16116           }
16117
16118           break;
16119         }
16120
16121         if (last_custom_copy_mode != -1)
16122         {
16123           if (CopyCustomElement(properties_element, new_element,
16124                                 last_custom_copy_mode))
16125           {
16126             ClickOnGadget(level_editor_gadget[last_drawing_function],
16127                           MB_LEFTBUTTON);
16128
16129             last_custom_copy_mode = -1;
16130           }
16131
16132           break;
16133         }
16134
16135         // change element of button used to show palette
16136         if (editor.palette.show_on_element_buttons)
16137           button = last_button;
16138
16139         PickDrawingElement(button, new_element);
16140
16141         if (!stick_element_properties_window &&
16142             drawing_function != GADGET_ID_PICK_ELEMENT &&
16143             !(GetKeyModState() & KMOD_Control))
16144         {
16145           properties_element = new_element;
16146           if (edit_mode == ED_MODE_PROPERTIES)
16147             DrawPropertiesWindow();
16148         }
16149
16150         if (drawing_function == GADGET_ID_PICK_ELEMENT)
16151           ClickOnGadget(level_editor_gadget[last_drawing_function],
16152                         MB_LEFTBUTTON);
16153
16154         if (!use_permanent_palette)
16155           ChangeEditModeWindow(last_edit_mode);
16156       }
16157 #ifdef DEBUG
16158       else if (gi->event.type == GD_EVENT_PRESSED)
16159         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
16160       else if (gi->event.type == GD_EVENT_RELEASED)
16161         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
16162       else if (gi->event.type == GD_EVENT_MOVING)
16163         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
16164       else
16165         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
16166 #endif
16167       break;
16168   }
16169 }
16170
16171 void HandleLevelEditorKeyInput(Key key)
16172 {
16173   char letter = getCharFromKey(key);
16174
16175   if (drawing_function == GADGET_ID_TEXT &&
16176       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
16177   {
16178     if (letter)
16179       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
16180     else if (key == KSYM_Delete || key == KSYM_BackSpace)
16181       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
16182     else if (key == KSYM_Return)
16183       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
16184     else if (key == KSYM_Escape)
16185       DrawLevelText(0, 0, 0, TEXT_END);
16186
16187     return;
16188   }
16189
16190   int id = GADGET_ID_NONE;
16191   int new_element_shift = element_shift;
16192   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
16193   int button = MB_LEFTBUTTON;
16194   int i;
16195
16196   switch (key)
16197   {
16198     case KSYM_Left:
16199       id = GADGET_ID_SCROLL_LEFT;
16200       break;
16201     case KSYM_Right:
16202       id = GADGET_ID_SCROLL_RIGHT;
16203       break;
16204     case KSYM_Up:
16205       id = GADGET_ID_SCROLL_UP;
16206       break;
16207     case KSYM_Down:
16208       id = GADGET_ID_SCROLL_DOWN;
16209       break;
16210
16211     case KSYM_Page_Up:
16212     case KSYM_Page_Down:
16213       step *= (key == KSYM_Page_Up ? -1 : +1);
16214       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
16215
16216       if (element_shift < 0)
16217         element_shift = 0;
16218       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
16219         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
16220
16221       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
16222                    GDI_SCROLLBAR_ITEM_POSITION,
16223                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
16224
16225       ModifyEditorElementList();
16226
16227       break;
16228
16229     case KSYM_Home:
16230     case KSYM_End:
16231       element_shift = (key == KSYM_Home ? 0 :
16232                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
16233
16234       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
16235                    GDI_SCROLLBAR_ITEM_POSITION,
16236                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
16237
16238       ModifyEditorElementList();
16239
16240       break;
16241
16242     case KSYM_Insert:
16243     case KSYM_Delete:
16244
16245       // this is needed to prevent interference with running "True X-Mouse"
16246       if (GetKeyModStateFromEvents() & KMOD_Control)
16247         break;
16248
16249       // check for last or next editor cascade block in element list
16250       for (i = 0; i < num_editor_elements; i++)
16251       {
16252         if ((key == KSYM_Insert && i == element_shift) ||
16253             (key == KSYM_Delete && new_element_shift > element_shift))
16254           break;
16255
16256         // jump to next cascade block (or to start of element list)
16257         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
16258           new_element_shift = i;
16259       }
16260
16261       if (i < num_editor_elements)
16262         element_shift = new_element_shift;
16263
16264       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
16265         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
16266
16267       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
16268                    GDI_SCROLLBAR_ITEM_POSITION,
16269                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
16270
16271       ModifyEditorElementList();
16272
16273       break;
16274
16275     case KSYM_Escape:
16276       if (edit_mode == ED_MODE_DRAWING)
16277         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
16278       else if (edit_mode == ED_MODE_LEVELCONFIG)
16279         HandleControlButtons(level_editor_gadget[GADGET_ID_CONF]);
16280       else if (edit_mode == ED_MODE_PROPERTIES)
16281         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
16282       else if (edit_mode == ED_MODE_PALETTE)
16283         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
16284       else              // should never happen
16285         ChangeEditModeWindow(ED_MODE_DRAWING);
16286
16287       break;
16288
16289     default:
16290       break;
16291   }
16292
16293   if (id != GADGET_ID_NONE)
16294     ClickOnGadget(level_editor_gadget[id], button);
16295   else if (letter == '1' || letter == '?')
16296     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
16297   else if (letter == '2')
16298     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
16299   else if (letter == '3')
16300     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
16301   else if (letter == '.')
16302     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
16303   else if (letter == 'U')
16304     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
16305   else if (letter == '-' || key == KSYM_KP_Subtract)
16306     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
16307   else if (letter == '0' || key == KSYM_KP_0)
16308     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
16309   else if (letter == '+' || key == KSYM_KP_Add ||
16310            letter == '=')       // ("Shift-=" is "+" on US keyboards)
16311     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
16312   else if (key == KSYM_Return ||
16313            key == KSYM_space ||
16314            key == setup.shortcut.toggle_pause)
16315     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
16316   else
16317     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
16318       if (letter && letter == controlbutton_info[i].shortcut)
16319         if (!anyTextGadgetActive())
16320           ClickOnGadget(level_editor_gadget[i], button);
16321
16322   if (draw_with_brush)
16323   {
16324     if (letter == 'x')
16325       FlipBrushX();
16326     else if (letter == 'y')
16327       FlipBrushY();
16328     else if (letter == 'z')
16329       RotateBrush();
16330   }
16331 }
16332
16333 static void HandleLevelEditorIdle_Properties(void)
16334 {
16335   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
16336   int x = editor.settings.element_graphic.x + element_border;
16337   int y = editor.settings.element_graphic.y + element_border;
16338   static DelayCounter action_delay = { 0 };
16339   int i;
16340
16341   action_delay.value = GameFrameDelay;
16342
16343   if (!DelayReached(&action_delay))
16344     return;
16345
16346   for (i = 0; i < ED_NUM_SELECTBOX; i++)
16347   {
16348     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
16349
16350     if (gi->mapped && gi->active && gi->selectbox.open)
16351       return;
16352   }
16353
16354   DrawEditorElementAnimation(SX + x, SY + y);
16355
16356   redraw_mask |= REDRAW_FIELD;
16357
16358   FrameCounter++;       // increase animation frame counter
16359 }
16360
16361 static void HandleLevelEditorIdle_Drawing(void)
16362 {
16363   static boolean last_highlighted = FALSE;
16364   static boolean last_highlighted_similar = FALSE;
16365   boolean highlighted = (GetKeyModState() & KMOD_Alt);
16366   boolean highlighted_similar = (GetKeyModState() & KMOD_Shift);
16367
16368   if (highlighted != last_highlighted ||
16369       (highlighted && highlighted_similar != last_highlighted_similar))
16370   {
16371     DrawAreaElementHighlight(highlighted, highlighted_similar);
16372
16373     redraw_mask |= REDRAW_FIELD;
16374   }
16375
16376   last_highlighted = highlighted;
16377   last_highlighted_similar = highlighted_similar;
16378 }
16379
16380 void HandleLevelEditorIdle(void)
16381 {
16382   if (edit_mode == ED_MODE_PROPERTIES)
16383     HandleLevelEditorIdle_Properties();
16384   else if (edit_mode == ED_MODE_DRAWING)
16385     HandleLevelEditorIdle_Drawing();
16386 }
16387
16388 static void ClearEditorGadgetInfoText(void)
16389 {
16390   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
16391 }
16392
16393 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
16394 {
16395   char infotext[MAX_OUTPUT_LINESIZE + 1];
16396   int max_infotext_len = getMaxInfoTextLength();
16397
16398   if (gi == NULL || strlen(gi->info_text) == 0)
16399     return;
16400
16401   strncpy(infotext, gi->info_text, max_infotext_len);
16402   infotext[max_infotext_len] = '\0';
16403
16404   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
16405   {
16406     int key = controlbutton_info[gi->custom_id].shortcut;
16407
16408     if (key)
16409     {
16410       char shortcut[MAX_OUTPUT_LINESIZE + 1];
16411
16412       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
16413         sprintf(shortcut, " ('.' or '%c')", key);
16414       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
16415         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
16416       else if (gi->custom_id == GADGET_ID_TEST)
16417         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
16418       else if (gi->custom_id == GADGET_ID_UNDO)
16419         sprintf(shortcut, " ('%c/Shift-U')", key);
16420       else if (gi->custom_id == GADGET_ID_ZOOM)
16421         sprintf(shortcut, " ('%c', '0', '-')", key);
16422       else
16423         sprintf(shortcut, " ('%s%c')",
16424                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
16425
16426       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
16427         strcat(infotext, shortcut);
16428     }
16429   }
16430
16431   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
16432 }
16433
16434 void HandleEditorGadgetInfoText(void *ptr)
16435 {
16436   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
16437
16438   if (game_status != GAME_MODE_EDITOR)
16439     return;
16440
16441   ClearEditorGadgetInfoText();
16442
16443   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
16444     return;
16445
16446   // misuse this function to delete brush cursor, if needed
16447   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
16448     DeleteBrushFromCursor();
16449
16450   PrintEditorGadgetInfoText(gi);
16451 }
16452
16453 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
16454 {
16455   int id = gi->custom_id;
16456   int type_id = gi->custom_type_id;
16457   int sx = gi->event.x;
16458   int sy = gi->event.y;
16459   int lx = sx + level_xpos;
16460   int ly = sy + level_ypos;
16461   int min_sx = 0, min_sy = 0;
16462   int max_sx = gi->drawing.area_xsize - 1;
16463   int max_sy = gi->drawing.area_ysize - 1;
16464   int actual_drawing_function = drawing_function;
16465   int max_infotext_len = getMaxInfoTextLength();
16466   char infotext[MAX_OUTPUT_LINESIZE + 1];
16467
16468   infotext[0] = '\0';           // start with empty info text
16469
16470   // pressed Control key: simulate picking element
16471   if (GetKeyModState() & KMOD_Control)
16472     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
16473
16474   ClearEditorGadgetInfoText();
16475
16476   if (gi->event.type == GD_EVENT_INFO_LEAVING)
16477     return;
16478
16479   // make sure to stay inside drawing area boundaries
16480   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
16481   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
16482
16483   if (id == GADGET_ID_DRAWING_LEVEL)
16484   {
16485     if (button_status)
16486     {
16487       int min_lx = 0, min_ly = 0;
16488       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
16489
16490       // get positions inside level field
16491       lx = sx + level_xpos;
16492       ly = sy + level_ypos;
16493
16494       // make sure to stay inside level field boundaries
16495       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
16496       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
16497
16498       // correct drawing area positions accordingly
16499       sx = lx - level_xpos;
16500       sy = ly - level_ypos;
16501     }
16502
16503     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16504     {
16505       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
16506       {
16507         static int start_lx = 0;
16508         static int start_ly = 0;
16509         char *text;
16510
16511         if (gi->event.type == GD_EVENT_PRESSED)
16512         {
16513           start_lx = lx;
16514           start_ly = ly;
16515         }
16516
16517         switch (actual_drawing_function)
16518         {
16519           case GADGET_ID_SINGLE_ITEMS:
16520             text = "Drawing single items";
16521             break;
16522           case GADGET_ID_CONNECTED_ITEMS:
16523             text = "Drawing connected items";
16524             break;
16525           case GADGET_ID_LINE:
16526             text = "Drawing line";
16527             break;
16528           case GADGET_ID_ARC:
16529             text = "Drawing arc";
16530             break;
16531           case GADGET_ID_TEXT:
16532             text = "Setting text cursor";
16533             break;
16534           case GADGET_ID_RECTANGLE:
16535             text = "Drawing rectangle";
16536             break;
16537           case GADGET_ID_FILLED_BOX:
16538             text = "Drawing filled box";
16539             break;
16540           case GADGET_ID_FLOOD_FILL:
16541             text = "Flood fill";
16542             break;
16543           case GADGET_ID_GRAB_BRUSH:
16544             text = "Grabbing brush";
16545             break;
16546           case GADGET_ID_PICK_ELEMENT:
16547             text = "Picking element";
16548             break;
16549
16550           default:
16551             text = "Drawing position";
16552             break;
16553         }
16554
16555         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16556           sprintf(infotext, "%s: %d, %d", text, lx, ly);
16557         else
16558           sprintf(infotext, "%s: %d, %d", text,
16559                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
16560       }
16561       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16562         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
16563       else
16564         sprintf(infotext, "Level position: %d, %d", lx, ly);
16565     }
16566
16567     // misuse this function to draw brush cursor, if needed
16568     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
16569     {
16570       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16571         CopyBrushToCursor(sx, sy);
16572       else
16573         DeleteBrushFromCursor();
16574     }
16575
16576     if (!draw_with_brush)
16577       UpdateBrushPosition(sx, sy);
16578   }
16579   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16580   {
16581     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
16582     int element = drawingarea_info[type_id].value[pos];
16583
16584     strncpy(infotext, getElementInfoText(element), max_infotext_len);
16585   }
16586   else
16587   {
16588     if (id == GADGET_ID_CUSTOM_CONTENT)
16589       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
16590     else if (id == GADGET_ID_GROUP_CONTENT)
16591       sprintf(infotext, "group element position: %d", sx + 1);
16592     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
16593              id <= GADGET_ID_YAMYAM_CONTENT_7)
16594       sprintf(infotext, "content area %d position: %d, %d",
16595               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
16596     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
16597              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
16598       sprintf(infotext, "content area %d position: %d, %d",
16599               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
16600     else if (id == GADGET_ID_ANDROID_CONTENT)
16601       sprintf(infotext, "android element position: %d", sx + 1);
16602     else if (drawingarea_info[type_id].infotext != NULL)
16603       strcpy(infotext, drawingarea_info[type_id].infotext);
16604   }
16605
16606   infotext[max_infotext_len] = '\0';
16607
16608   if (strlen(infotext) > 0)
16609     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
16610 }
16611
16612 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
16613                             boolean quick_quit)
16614 {
16615   if (!ask_if_level_has_changed ||
16616       !LevelChanged() ||
16617       Request("Level has changed! Exit without saving?",
16618               REQ_ASK | REQ_STAY_OPEN))
16619   {
16620     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
16621     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
16622
16623     // draw normal door
16624     UndrawSpecialEditorDoor();
16625
16626     // use door animation if door 1 viewport is unchanged and contains toolbox
16627     if (useEditorDoorAnimation())
16628       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
16629
16630     // close editor doors if viewport definition is the same as in main menu
16631     if (vp_door_1->x      == DX     &&
16632         vp_door_1->y      == DY     &&
16633         vp_door_1->width  == DXSIZE &&
16634         vp_door_1->height == DYSIZE &&
16635         vp_door_2->x      == VX     &&
16636         vp_door_2->y      == VY     &&
16637         vp_door_2->width  == VXSIZE &&
16638         vp_door_2->height == VYSIZE)
16639       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
16640     else
16641       SetDoorState(DOOR_CLOSE_ALL);
16642
16643     BackToFront();
16644
16645     if (quick_quit)
16646       FadeSkipNextFadeIn();
16647
16648     SetGameStatus(GAME_MODE_MAIN);
16649
16650     DrawMainMenu();
16651   }
16652   else
16653   {
16654     if (!global.use_envelope_request)
16655     {
16656       CloseDoor(DOOR_CLOSE_1);
16657       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
16658     }
16659   }
16660 }