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_emerald_mine[] =
4928 {
4929   EL_INTERNAL_CASCADE_EM_ACTIVE,
4930   EL_CHAR('E'),
4931   EL_CHAR('M'),
4932   EL_EMPTY,
4933 };
4934
4935 static int editor_el_emerald_mine[] =
4936 {
4937   EL_SAND,
4938   EL_ROCK,
4939   EL_QUICKSAND_EMPTY,
4940   EL_QUICKSAND_FULL,
4941
4942   EL_STEELWALL,
4943   EL_WALL,
4944   EL_WALL_SLIPPERY,
4945   EL_MAGIC_WALL,
4946
4947   EL_EMERALD,
4948   EL_DIAMOND,
4949   EL_NUT,
4950   EL_BOMB,
4951
4952   EL_EM_DYNAMITE,
4953   EL_EM_DYNAMITE_ACTIVE,
4954   EL_EM_EXIT_CLOSED,
4955   EL_EM_EXIT_OPEN,
4956
4957   EL_YAMYAM_UP,
4958   EL_BUG_UP,
4959   EL_SPACESHIP_UP,
4960   EL_ROBOT,
4961
4962   EL_BUG_LEFT,
4963   EL_SPACESHIP_LEFT,
4964   EL_BUG_RIGHT,
4965   EL_SPACESHIP_RIGHT,
4966
4967   EL_ROBOT_WHEEL,
4968   EL_BUG_DOWN,
4969   EL_SPACESHIP_DOWN,
4970   EL_INVISIBLE_WALL,
4971
4972   EL_ACID_POOL_TOPLEFT,
4973   EL_ACID,
4974   EL_ACID_POOL_TOPRIGHT,
4975   EL_AMOEBA_DROP,
4976
4977   EL_ACID_POOL_BOTTOMLEFT,
4978   EL_ACID_POOL_BOTTOM,
4979   EL_ACID_POOL_BOTTOMRIGHT,
4980   EL_AMOEBA_WET,
4981
4982   EL_EM_KEY_1,
4983   EL_EM_KEY_2,
4984   EL_EM_KEY_3,
4985   EL_EM_KEY_4,
4986
4987   EL_EM_GATE_1,
4988   EL_EM_GATE_2,
4989   EL_EM_GATE_3,
4990   EL_EM_GATE_4,
4991
4992   EL_EM_GATE_1_GRAY,
4993   EL_EM_GATE_2_GRAY,
4994   EL_EM_GATE_3_GRAY,
4995   EL_EM_GATE_4_GRAY,
4996 };
4997 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
4998 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
4999 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
5000 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
5001
5002 static int editor_hl_emerald_mine_club[] =
5003 {
5004   EL_INTERNAL_CASCADE_EMC_ACTIVE,
5005   EL_CHAR('E'),
5006   EL_CHAR('M'),
5007   EL_CHAR('C'),
5008 };
5009
5010 static int editor_el_emerald_mine_club[] =
5011 {
5012   EL_EMC_KEY_5,
5013   EL_EMC_KEY_6,
5014   EL_EMC_KEY_7,
5015   EL_EMC_KEY_8,
5016
5017   EL_EMC_GATE_5,
5018   EL_EMC_GATE_6,
5019   EL_EMC_GATE_7,
5020   EL_EMC_GATE_8,
5021
5022   EL_EMC_GATE_5_GRAY,
5023   EL_EMC_GATE_6_GRAY,
5024   EL_EMC_GATE_7_GRAY,
5025   EL_EMC_GATE_8_GRAY,
5026
5027   EL_EMC_STEELWALL_1,
5028   EL_EMC_STEELWALL_2,
5029   EL_EMC_STEELWALL_3,
5030   EL_EMC_STEELWALL_4,
5031
5032   EL_EMC_WALL_13,
5033   EL_EMC_WALL_14,
5034   EL_EMC_WALL_15,
5035   EL_EMC_WALL_16,
5036
5037   EL_EMC_WALL_SLIPPERY_1,
5038   EL_EMC_WALL_SLIPPERY_2,
5039   EL_EMC_WALL_SLIPPERY_3,
5040   EL_EMC_WALL_SLIPPERY_4,
5041
5042   EL_EMC_WALL_1,
5043   EL_EMC_WALL_2,
5044   EL_EMC_WALL_3,
5045   EL_EMC_WALL_4,
5046
5047   EL_EMC_WALL_5,
5048   EL_EMC_WALL_6,
5049   EL_EMC_WALL_7,
5050   EL_EMC_WALL_8,
5051
5052   EL_EMC_WALL_9,
5053   EL_EMC_WALL_10,
5054   EL_EMC_WALL_11,
5055   EL_EMC_WALL_12,
5056
5057   EL_EMC_GRASS,
5058   EL_EMC_FAKE_GRASS,
5059   EL_EMC_PLANT,
5060   EL_EMC_DRIPPER,
5061
5062   EL_EMC_MAGIC_BALL,
5063   EL_EMC_MAGIC_BALL_SWITCH,
5064   EL_EMC_LENSES,
5065   EL_EMC_MAGNIFIER,
5066
5067   EL_SPRING_LEFT,
5068   EL_SPRING,
5069   EL_SPRING_RIGHT,
5070   EL_EMC_SPRING_BUMPER,
5071
5072   EL_BALLOON,
5073   EL_YAMYAM_UP,
5074   EL_BALLOON_SWITCH_UP,
5075   EL_BALLOON_SWITCH_ANY,
5076
5077   EL_YAMYAM_LEFT,
5078   EL_BALLOON_SWITCH_LEFT,
5079   EL_YAMYAM_RIGHT,
5080   EL_BALLOON_SWITCH_RIGHT,
5081
5082   EL_EMC_ANDROID,
5083   EL_YAMYAM_DOWN,
5084   EL_BALLOON_SWITCH_DOWN,
5085   EL_BALLOON_SWITCH_NONE,
5086 };
5087 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
5088 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
5089 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
5090 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
5091
5092 static int editor_hl_rnd[] =
5093 {
5094   EL_INTERNAL_CASCADE_RND_ACTIVE,
5095   EL_CHAR('R'),
5096   EL_CHAR('N'),
5097   EL_CHAR('D'),
5098 };
5099
5100 static int editor_el_rnd[] =
5101 {
5102   EL_DYNAMITE,                  // RND
5103   EL_DYNAMITE_ACTIVE,           // RND
5104   EL_EMPTY,
5105   EL_EMPTY,
5106
5107   EL_KEY_1,
5108   EL_KEY_2,
5109   EL_KEY_3,
5110   EL_KEY_4,
5111
5112   EL_GATE_1,
5113   EL_GATE_2,
5114   EL_GATE_3,
5115   EL_GATE_4,
5116
5117   EL_GATE_1_GRAY,
5118   EL_GATE_2_GRAY,
5119   EL_GATE_3_GRAY,
5120   EL_GATE_4_GRAY,
5121
5122   EL_ARROW_LEFT,
5123   EL_ARROW_RIGHT,
5124   EL_ARROW_UP,
5125   EL_ARROW_DOWN,
5126
5127   EL_AMOEBA_DEAD,
5128   EL_AMOEBA_DRY,
5129   EL_AMOEBA_FULL,
5130   EL_GAME_OF_LIFE,
5131
5132   EL_EMERALD_YELLOW,
5133   EL_EMERALD_RED,
5134   EL_EMERALD_PURPLE,
5135   EL_BIOMAZE,
5136
5137   EL_WALL_EMERALD_YELLOW,
5138   EL_WALL_EMERALD_RED,
5139   EL_WALL_EMERALD_PURPLE,
5140   EL_WALL_BD_DIAMOND,
5141
5142   EL_SPEED_PILL,
5143   EL_PACMAN_UP,
5144   EL_TIME_ORB_FULL,
5145   EL_TIME_ORB_EMPTY,
5146
5147   EL_PACMAN_LEFT,
5148   EL_DARK_YAMYAM,
5149   EL_PACMAN_RIGHT,
5150   EL_YAMYAM,                    // RND
5151
5152   EL_BLACK_ORB,
5153   EL_PACMAN_DOWN,
5154   EL_LAMP,
5155   EL_LAMP_ACTIVE,
5156
5157   EL_DYNABOMB_INCREASE_NUMBER,
5158   EL_DYNABOMB_INCREASE_SIZE,
5159   EL_DYNABOMB_INCREASE_POWER,
5160   EL_STONEBLOCK,
5161
5162   EL_MOLE,
5163   EL_PENGUIN,
5164   EL_PIG,
5165   EL_DRAGON,
5166
5167   EL_BUG,
5168   EL_MOLE_UP,
5169   EL_BD_BUTTERFLY,
5170   EL_BD_FIREFLY,
5171
5172   EL_MOLE_LEFT,
5173   EL_SATELLITE,
5174   EL_MOLE_RIGHT,
5175   EL_PACMAN,
5176
5177   EL_SPACESHIP,
5178   EL_MOLE_DOWN,
5179   EL_INVISIBLE_STEELWALL,
5180   EL_INVISIBLE_WALL,
5181
5182   EL_EXPANDABLE_WALL,
5183   EL_EXPANDABLE_WALL_HORIZONTAL,
5184   EL_EXPANDABLE_WALL_VERTICAL,
5185   EL_EXPANDABLE_WALL_ANY,
5186 };
5187 static int *editor_hl_rnd_ptr = editor_hl_rnd;
5188 static int *editor_el_rnd_ptr = editor_el_rnd;
5189 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
5190 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
5191
5192 static int editor_hl_sokoban[] =
5193 {
5194   EL_INTERNAL_CASCADE_SB_ACTIVE,
5195   EL_CHAR('S'),
5196   EL_CHAR('B'),
5197   EL_EMPTY,
5198 };
5199
5200 static int editor_el_sokoban[] =
5201 {
5202   EL_SOKOBAN_OBJECT,
5203   EL_SOKOBAN_FIELD_EMPTY,
5204   EL_SOKOBAN_FIELD_FULL,
5205   EL_SOKOBAN_FIELD_PLAYER,
5206 };
5207 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
5208 static int *editor_el_sokoban_ptr = editor_el_sokoban;
5209 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
5210 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
5211
5212 static int editor_hl_supaplex[] =
5213 {
5214   EL_INTERNAL_CASCADE_SP_ACTIVE,
5215   EL_CHAR('S'),
5216   EL_CHAR('P'),
5217   EL_EMPTY,
5218 };
5219
5220 static int editor_el_supaplex[] =
5221 {
5222   EL_SP_MURPHY,
5223   EL_EMPTY,
5224   EL_SP_BASE,
5225   EL_SP_BUGGY_BASE,
5226
5227   EL_SP_INFOTRON,
5228   EL_SP_ZONK,
5229   EL_SP_SNIKSNAK,
5230   EL_SP_ELECTRON,
5231
5232   EL_SP_DISK_RED,
5233   EL_SP_DISK_ORANGE,
5234   EL_SP_DISK_YELLOW,
5235   EL_SP_TERMINAL,
5236
5237   EL_SP_EXIT_CLOSED,
5238   EL_SP_PORT_HORIZONTAL,
5239   EL_SP_PORT_VERTICAL,
5240   EL_SP_PORT_ANY,
5241
5242   EL_SP_PORT_LEFT,
5243   EL_SP_PORT_RIGHT,
5244   EL_SP_PORT_UP,
5245   EL_SP_PORT_DOWN,
5246
5247   EL_SP_GRAVITY_PORT_LEFT,
5248   EL_SP_GRAVITY_PORT_RIGHT,
5249   EL_SP_GRAVITY_PORT_UP,
5250   EL_SP_GRAVITY_PORT_DOWN,
5251
5252   EL_SP_GRAVITY_ON_PORT_LEFT,
5253   EL_SP_GRAVITY_ON_PORT_RIGHT,
5254   EL_SP_GRAVITY_ON_PORT_UP,
5255   EL_SP_GRAVITY_ON_PORT_DOWN,
5256
5257   EL_SP_GRAVITY_OFF_PORT_LEFT,
5258   EL_SP_GRAVITY_OFF_PORT_RIGHT,
5259   EL_SP_GRAVITY_OFF_PORT_UP,
5260   EL_SP_GRAVITY_OFF_PORT_DOWN,
5261
5262   EL_SP_HARDWARE_GRAY,
5263   EL_SP_HARDWARE_GREEN,
5264   EL_SP_HARDWARE_BLUE,
5265   EL_SP_HARDWARE_RED,
5266
5267   EL_SP_HARDWARE_BASE_1,
5268   EL_SP_HARDWARE_BASE_2,
5269   EL_SP_HARDWARE_BASE_3,
5270   EL_SP_HARDWARE_BASE_4,
5271
5272   EL_SP_HARDWARE_BASE_5,
5273   EL_SP_HARDWARE_BASE_6,
5274   EL_SP_HARDWARE_YELLOW,
5275   EL_SP_CHIP_TOP,
5276
5277   EL_SP_CHIP_SINGLE,
5278   EL_SP_CHIP_LEFT,
5279   EL_SP_CHIP_RIGHT,
5280   EL_SP_CHIP_BOTTOM,
5281 };
5282 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
5283 static int *editor_el_supaplex_ptr = editor_el_supaplex;
5284 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
5285 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
5286
5287 static int editor_hl_diamond_caves[] =
5288 {
5289   EL_INTERNAL_CASCADE_DC_ACTIVE,
5290   EL_CHAR('D'),
5291   EL_CHAR('C'),
5292   EL_CHAR('2'),
5293 };
5294
5295 static int editor_el_diamond_caves[] =
5296 {
5297   EL_EM_STEEL_EXIT_CLOSED,      // DC2
5298   EL_EM_STEEL_EXIT_OPEN,        // DC2
5299   EL_WALL_EMERALD,              // DC2
5300   EL_WALL_DIAMOND,              // DC2
5301
5302   EL_PEARL,
5303   EL_CRYSTAL,
5304   EL_WALL_PEARL,
5305   EL_WALL_CRYSTAL,
5306
5307   EL_CONVEYOR_BELT_1_LEFT,
5308   EL_CONVEYOR_BELT_1_MIDDLE,
5309   EL_CONVEYOR_BELT_1_RIGHT,
5310   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
5311
5312   EL_CONVEYOR_BELT_2_LEFT,
5313   EL_CONVEYOR_BELT_2_MIDDLE,
5314   EL_CONVEYOR_BELT_2_RIGHT,
5315   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
5316
5317   EL_CONVEYOR_BELT_3_LEFT,
5318   EL_CONVEYOR_BELT_3_MIDDLE,
5319   EL_CONVEYOR_BELT_3_RIGHT,
5320   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
5321
5322   EL_CONVEYOR_BELT_4_LEFT,
5323   EL_CONVEYOR_BELT_4_MIDDLE,
5324   EL_CONVEYOR_BELT_4_RIGHT,
5325   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
5326
5327   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
5328   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
5329   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
5330   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
5331
5332   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
5333   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
5334   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
5335   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
5336
5337   EL_TIMEGATE_CLOSED,
5338   EL_TIMEGATE_OPEN,
5339   EL_TIMEGATE_SWITCH,
5340   EL_DC_TIMEGATE_SWITCH,
5341
5342   EL_SWITCHGATE_CLOSED,
5343   EL_SWITCHGATE_OPEN,
5344   EL_SWITCHGATE_SWITCH_UP,
5345   EL_SWITCHGATE_SWITCH_DOWN,
5346
5347   EL_LIGHT_SWITCH,
5348   EL_LIGHT_SWITCH_ACTIVE,
5349   EL_DC_SWITCHGATE_SWITCH_UP,
5350   EL_DC_SWITCHGATE_SWITCH_DOWN,
5351
5352   EL_STEEL_EXIT_CLOSED,
5353   EL_STEEL_EXIT_OPEN,
5354   EL_STEELWALL_SLIPPERY,
5355   EL_INVISIBLE_SAND,
5356
5357   EL_QUICKSAND_FAST_EMPTY,
5358   EL_QUICKSAND_FAST_FULL,
5359   EL_LANDMINE,
5360   EL_DC_LANDMINE,
5361
5362   EL_SHIELD_NORMAL,
5363   EL_SHIELD_DEADLY,
5364   EL_EXTRA_TIME,
5365   EL_DC_MAGIC_WALL,
5366
5367   EL_ENVELOPE_1,
5368   EL_ENVELOPE_2,
5369   EL_ENVELOPE_3,
5370   EL_ENVELOPE_4,
5371
5372   EL_SIGN_RADIOACTIVITY,
5373   EL_SIGN_WHEELCHAIR,
5374   EL_SIGN_PARKING,
5375   EL_SIGN_NO_ENTRY,
5376
5377   EL_SIGN_GIVE_WAY,
5378   EL_SIGN_ENTRY_FORBIDDEN,
5379   EL_SIGN_EMERGENCY_EXIT,
5380   EL_SIGN_YIN_YANG,
5381
5382 #if 0
5383   EL_SIGN_SPERMS,
5384   EL_SIGN_BULLET,
5385   EL_SIGN_HEART,
5386   EL_SIGN_CROSS,
5387
5388   EL_SIGN_FRANKIE,
5389   EL_EMPTY,
5390   EL_EMPTY,
5391   EL_EMPTY,
5392
5393   EL_SPERMS,
5394   EL_BULLET,
5395   EL_HEART,
5396   EL_CROSS,
5397
5398   EL_FRANKIE,
5399   EL_EMPTY,
5400   EL_EMPTY,
5401   EL_EMPTY,
5402 #endif
5403
5404   EL_DC_STEELWALL_2_SINGLE,
5405   EL_DC_STEELWALL_2_TOP,
5406   EL_SIGN_EXCLAMATION,
5407   EL_SIGN_STOP,
5408
5409   EL_DC_STEELWALL_2_LEFT,
5410   EL_DC_STEELWALL_2_MIDDLE,
5411   EL_DC_STEELWALL_2_HORIZONTAL,
5412   EL_DC_STEELWALL_2_RIGHT,
5413
5414   EL_DC_STEELWALL_1_TOPLEFT,
5415   EL_DC_STEELWALL_2_VERTICAL,
5416   EL_DC_STEELWALL_1_TOPRIGHT,
5417   EL_DC_GATE_WHITE,
5418
5419   EL_DC_STEELWALL_1_VERTICAL,
5420   EL_DC_STEELWALL_2_BOTTOM,
5421   EL_DC_KEY_WHITE,
5422   EL_DC_GATE_WHITE_GRAY,
5423
5424   EL_DC_STEELWALL_1_BOTTOMLEFT,
5425   EL_DC_STEELWALL_1_HORIZONTAL,
5426   EL_DC_STEELWALL_1_BOTTOMRIGHT,
5427   EL_DC_GATE_FAKE_GRAY,
5428
5429   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
5430   EL_DC_STEELWALL_1_BOTTOM,
5431   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
5432   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
5433
5434   EL_DC_STEELWALL_1_RIGHT,
5435   EL_EMPTY,
5436   EL_DC_STEELWALL_1_LEFT,
5437   EL_EXPANDABLE_STEELWALL_VERTICAL,
5438
5439   EL_DC_STEELWALL_1_TOPRIGHT_2,
5440   EL_DC_STEELWALL_1_TOP,
5441   EL_DC_STEELWALL_1_TOPLEFT_2,
5442   EL_EXPANDABLE_STEELWALL_ANY,
5443 };
5444 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
5445 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
5446 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
5447 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
5448
5449 static int editor_hl_dx_boulderdash[] =
5450 {
5451   EL_INTERNAL_CASCADE_DX_ACTIVE,
5452   EL_CHAR('D'),
5453   EL_CHAR('X'),
5454   EL_EMPTY,
5455 };
5456
5457 static int editor_el_dx_boulderdash[] =
5458 {
5459   EL_EMPTY,
5460   EL_TUBE_RIGHT_DOWN,
5461   EL_TUBE_HORIZONTAL_DOWN,
5462   EL_TUBE_LEFT_DOWN,
5463
5464   EL_TUBE_HORIZONTAL,
5465   EL_TUBE_VERTICAL_RIGHT,
5466   EL_TUBE_ANY,
5467   EL_TUBE_VERTICAL_LEFT,
5468
5469   EL_TUBE_VERTICAL,
5470   EL_TUBE_RIGHT_UP,
5471   EL_TUBE_HORIZONTAL_UP,
5472   EL_TUBE_LEFT_UP,
5473
5474   EL_TRAP,
5475   EL_DX_SUPABOMB,
5476   EL_EMPTY,
5477   EL_EMPTY
5478 };
5479 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
5480 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
5481 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
5482 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
5483
5484 static int editor_hl_mirror_magic[] =
5485 {
5486   EL_INTERNAL_CASCADE_MM_ACTIVE,
5487   EL_CHAR('M'),
5488   EL_CHAR('M'),
5489   EL_EMPTY,
5490 };
5491
5492 static int editor_el_mirror_magic[] =
5493 {
5494   EL_MM_MCDUFFIN_RIGHT,
5495   EL_MM_MCDUFFIN_UP,
5496   EL_MM_MCDUFFIN_LEFT,
5497   EL_MM_MCDUFFIN_DOWN,
5498
5499   EL_MM_MIRROR_START,
5500   EL_MM_MIRROR_FIXED_START,
5501   EL_MM_POLARIZER_START,
5502   EL_MM_POLARIZER_CROSS_START,
5503
5504   EL_MM_TELEPORTER_RED_START,
5505   EL_MM_TELEPORTER_YELLOW_START,
5506   EL_MM_TELEPORTER_GREEN_START,
5507   EL_MM_TELEPORTER_BLUE_START,
5508
5509   EL_MM_PRISM,
5510   EL_MM_FUSE_ACTIVE,
5511   EL_MM_PACMAN_RIGHT,
5512   EL_MM_EXIT_CLOSED,
5513
5514   EL_MM_KETTLE,
5515   EL_MM_BOMB,
5516   EL_MM_KEY,
5517   EL_MM_FUEL_FULL,
5518
5519   EL_MM_LIGHTBULB,
5520   EL_MM_LIGHTBULB_ACTIVE,
5521   EL_MM_GRAY_BALL,
5522   EL_MM_LIGHTBALL,
5523
5524   EL_MM_STEEL_WALL,
5525   EL_MM_WOODEN_WALL,
5526   EL_MM_ICE_WALL,
5527   EL_MM_AMOEBA_WALL,
5528
5529   EL_MM_STEEL_LOCK,
5530   EL_MM_WOODEN_LOCK,
5531   EL_MM_STEEL_BLOCK,
5532   EL_MM_WOODEN_BLOCK,
5533
5534   EL_MM_STEEL_GRID_FIXED_1,
5535   EL_MM_STEEL_GRID_FIXED_2,
5536   EL_MM_STEEL_GRID_FIXED_3,
5537   EL_MM_STEEL_GRID_FIXED_4,
5538
5539   EL_MM_WOODEN_GRID_FIXED_1,
5540   EL_MM_WOODEN_GRID_FIXED_2,
5541   EL_MM_WOODEN_GRID_FIXED_3,
5542   EL_MM_WOODEN_GRID_FIXED_4,
5543
5544   EL_MM_ENVELOPE_1,
5545   EL_MM_ENVELOPE_2,
5546   EL_MM_ENVELOPE_3,
5547   EL_MM_ENVELOPE_4
5548 };
5549 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
5550 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
5551 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
5552 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
5553
5554 static int editor_hl_deflektor[] =
5555 {
5556   EL_INTERNAL_CASCADE_DF_ACTIVE,
5557   EL_CHAR('D'),
5558   EL_CHAR('F'),
5559   EL_EMPTY,
5560 };
5561
5562 static int editor_el_deflektor[] =
5563 {
5564   EL_DF_LASER_RIGHT,
5565   EL_DF_LASER_UP,
5566   EL_DF_LASER_LEFT,
5567   EL_DF_LASER_DOWN,
5568
5569   EL_DF_RECEIVER_RIGHT,
5570   EL_DF_RECEIVER_UP,
5571   EL_DF_RECEIVER_LEFT,
5572   EL_DF_RECEIVER_DOWN,
5573
5574   EL_DF_MIRROR_START,
5575   EL_DF_MIRROR_ROTATING_START,
5576   EL_DF_MIRROR_FIXED_START,
5577   EL_DF_CELL,
5578
5579   EL_DF_FIBRE_OPTIC_RED_1,
5580   EL_DF_FIBRE_OPTIC_YELLOW_1,
5581   EL_DF_FIBRE_OPTIC_GREEN_1,
5582   EL_DF_FIBRE_OPTIC_BLUE_1,
5583
5584   EL_DF_STEEL_GRID_FIXED_START,
5585   EL_DF_STEEL_GRID_ROTATING_START,
5586   EL_DF_WOODEN_GRID_FIXED_START,
5587   EL_DF_WOODEN_GRID_ROTATING_START,
5588
5589   EL_DF_STEEL_WALL,
5590   EL_DF_WOODEN_WALL,
5591   EL_DF_REFRACTOR,
5592   EL_DF_MINE,
5593
5594   EL_DF_SLOPE_1,
5595   EL_DF_SLOPE_2,
5596   EL_DF_SLOPE_3,
5597   EL_DF_SLOPE_4
5598 };
5599 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
5600 static int *editor_el_deflektor_ptr = editor_el_deflektor;
5601 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
5602 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
5603
5604 static int editor_hl_chars[] =
5605 {
5606   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
5607   EL_CHAR('T'),
5608   EL_CHAR('X'),
5609   EL_CHAR('T'),
5610 };
5611
5612 static int editor_el_chars[] =
5613 {
5614   EL_CHAR(' '),
5615   EL_CHAR('!'),
5616   EL_CHAR('"'),
5617   EL_CHAR('#'),
5618
5619   EL_CHAR('$'),
5620   EL_CHAR('%'),
5621   EL_CHAR('&'),
5622   EL_CHAR('\''),
5623
5624   EL_CHAR('('),
5625   EL_CHAR(')'),
5626   EL_CHAR('*'),
5627   EL_CHAR('+'),
5628
5629   EL_CHAR(','),
5630   EL_CHAR('-'),
5631   EL_CHAR('.'),
5632   EL_CHAR('/'),
5633
5634   EL_CHAR('0'),
5635   EL_CHAR('1'),
5636   EL_CHAR('2'),
5637   EL_CHAR('3'),
5638
5639   EL_CHAR('4'),
5640   EL_CHAR('5'),
5641   EL_CHAR('6'),
5642   EL_CHAR('7'),
5643
5644   EL_CHAR('8'),
5645   EL_CHAR('9'),
5646   EL_CHAR(':'),
5647   EL_CHAR(';'),
5648
5649   EL_CHAR('<'),
5650   EL_CHAR('='),
5651   EL_CHAR('>'),
5652   EL_CHAR('?'),
5653
5654   EL_CHAR('@'),
5655   EL_CHAR('A'),
5656   EL_CHAR('B'),
5657   EL_CHAR('C'),
5658
5659   EL_CHAR('D'),
5660   EL_CHAR('E'),
5661   EL_CHAR('F'),
5662   EL_CHAR('G'),
5663
5664   EL_CHAR('H'),
5665   EL_CHAR('I'),
5666   EL_CHAR('J'),
5667   EL_CHAR('K'),
5668
5669   EL_CHAR('L'),
5670   EL_CHAR('M'),
5671   EL_CHAR('N'),
5672   EL_CHAR('O'),
5673
5674   EL_CHAR('P'),
5675   EL_CHAR('Q'),
5676   EL_CHAR('R'),
5677   EL_CHAR('S'),
5678
5679   EL_CHAR('T'),
5680   EL_CHAR('U'),
5681   EL_CHAR('V'),
5682   EL_CHAR('W'),
5683
5684   EL_CHAR('X'),
5685   EL_CHAR('Y'),
5686   EL_CHAR('Z'),
5687   EL_CHAR('['),
5688
5689   EL_CHAR('\\'),
5690   EL_CHAR(']'),
5691   EL_CHAR('^'),
5692   EL_CHAR('_'),
5693
5694   EL_CHAR(CHAR_BYTE_COPYRIGHT),
5695   EL_CHAR(CHAR_BYTE_UMLAUT_A),
5696   EL_CHAR(CHAR_BYTE_UMLAUT_O),
5697   EL_CHAR(CHAR_BYTE_UMLAUT_U),
5698
5699   EL_CHAR(CHAR_BYTE_DEGREE),
5700   EL_CHAR(CHAR_BYTE_REGISTERED),
5701   EL_CHAR(FONT_ASCII_CURSOR),
5702   EL_CHAR(FONT_ASCII_BUTTON),
5703
5704   EL_CHAR(FONT_ASCII_UP),
5705   EL_CHAR(FONT_ASCII_DOWN),
5706   EL_CHAR(' '),
5707   EL_CHAR(' ')
5708 };
5709 static int *editor_hl_chars_ptr = editor_hl_chars;
5710 static int *editor_el_chars_ptr = editor_el_chars;
5711 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
5712 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
5713
5714 static int editor_hl_steel_chars[] =
5715 {
5716   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
5717   EL_STEEL_CHAR('T'),
5718   EL_STEEL_CHAR('X'),
5719   EL_STEEL_CHAR('T'),
5720 };
5721
5722 static int editor_el_steel_chars[] =
5723 {
5724   EL_STEEL_CHAR(' '),
5725   EL_STEEL_CHAR('!'),
5726   EL_STEEL_CHAR('"'),
5727   EL_STEEL_CHAR('#'),
5728
5729   EL_STEEL_CHAR('$'),
5730   EL_STEEL_CHAR('%'),
5731   EL_STEEL_CHAR('&'),
5732   EL_STEEL_CHAR('\''),
5733
5734   EL_STEEL_CHAR('('),
5735   EL_STEEL_CHAR(')'),
5736   EL_STEEL_CHAR('*'),
5737   EL_STEEL_CHAR('+'),
5738
5739   EL_STEEL_CHAR(','),
5740   EL_STEEL_CHAR('-'),
5741   EL_STEEL_CHAR('.'),
5742   EL_STEEL_CHAR('/'),
5743
5744   EL_STEEL_CHAR('0'),
5745   EL_STEEL_CHAR('1'),
5746   EL_STEEL_CHAR('2'),
5747   EL_STEEL_CHAR('3'),
5748
5749   EL_STEEL_CHAR('4'),
5750   EL_STEEL_CHAR('5'),
5751   EL_STEEL_CHAR('6'),
5752   EL_STEEL_CHAR('7'),
5753
5754   EL_STEEL_CHAR('8'),
5755   EL_STEEL_CHAR('9'),
5756   EL_STEEL_CHAR(':'),
5757   EL_STEEL_CHAR(';'),
5758
5759   EL_STEEL_CHAR('<'),
5760   EL_STEEL_CHAR('='),
5761   EL_STEEL_CHAR('>'),
5762   EL_STEEL_CHAR('?'),
5763
5764   EL_STEEL_CHAR('@'),
5765   EL_STEEL_CHAR('A'),
5766   EL_STEEL_CHAR('B'),
5767   EL_STEEL_CHAR('C'),
5768
5769   EL_STEEL_CHAR('D'),
5770   EL_STEEL_CHAR('E'),
5771   EL_STEEL_CHAR('F'),
5772   EL_STEEL_CHAR('G'),
5773
5774   EL_STEEL_CHAR('H'),
5775   EL_STEEL_CHAR('I'),
5776   EL_STEEL_CHAR('J'),
5777   EL_STEEL_CHAR('K'),
5778
5779   EL_STEEL_CHAR('L'),
5780   EL_STEEL_CHAR('M'),
5781   EL_STEEL_CHAR('N'),
5782   EL_STEEL_CHAR('O'),
5783
5784   EL_STEEL_CHAR('P'),
5785   EL_STEEL_CHAR('Q'),
5786   EL_STEEL_CHAR('R'),
5787   EL_STEEL_CHAR('S'),
5788
5789   EL_STEEL_CHAR('T'),
5790   EL_STEEL_CHAR('U'),
5791   EL_STEEL_CHAR('V'),
5792   EL_STEEL_CHAR('W'),
5793
5794   EL_STEEL_CHAR('X'),
5795   EL_STEEL_CHAR('Y'),
5796   EL_STEEL_CHAR('Z'),
5797   EL_STEEL_CHAR('['),
5798
5799   EL_STEEL_CHAR('\\'),
5800   EL_STEEL_CHAR(']'),
5801   EL_STEEL_CHAR('^'),
5802   EL_STEEL_CHAR('_'),
5803
5804   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
5805   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
5806   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
5807   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
5808
5809   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
5810   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
5811   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
5812   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
5813
5814   EL_STEEL_CHAR(FONT_ASCII_UP),
5815   EL_STEEL_CHAR(FONT_ASCII_DOWN),
5816   EL_STEEL_CHAR(' '),
5817   EL_STEEL_CHAR(' ')
5818 };
5819 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
5820 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
5821 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
5822 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
5823
5824 static int editor_hl_custom[] =
5825 {
5826   EL_INTERNAL_CASCADE_CE_ACTIVE,
5827   EL_CHAR('C'),
5828   EL_CHAR('E'),
5829   EL_EMPTY,
5830 };
5831
5832 static int editor_el_custom[] =
5833 {
5834   EL_CUSTOM_START + 0,
5835   EL_CUSTOM_START + 1,
5836   EL_CUSTOM_START + 2,
5837   EL_CUSTOM_START + 3,
5838
5839   EL_CUSTOM_START + 4,
5840   EL_CUSTOM_START + 5,
5841   EL_CUSTOM_START + 6,
5842   EL_CUSTOM_START + 7,
5843
5844   EL_CUSTOM_START + 8,
5845   EL_CUSTOM_START + 9,
5846   EL_CUSTOM_START + 10,
5847   EL_CUSTOM_START + 11,
5848
5849   EL_CUSTOM_START + 12,
5850   EL_CUSTOM_START + 13,
5851   EL_CUSTOM_START + 14,
5852   EL_CUSTOM_START + 15,
5853
5854   EL_CUSTOM_START + 16,
5855   EL_CUSTOM_START + 17,
5856   EL_CUSTOM_START + 18,
5857   EL_CUSTOM_START + 19,
5858
5859   EL_CUSTOM_START + 20,
5860   EL_CUSTOM_START + 21,
5861   EL_CUSTOM_START + 22,
5862   EL_CUSTOM_START + 23,
5863
5864   EL_CUSTOM_START + 24,
5865   EL_CUSTOM_START + 25,
5866   EL_CUSTOM_START + 26,
5867   EL_CUSTOM_START + 27,
5868
5869   EL_CUSTOM_START + 28,
5870   EL_CUSTOM_START + 29,
5871   EL_CUSTOM_START + 30,
5872   EL_CUSTOM_START + 31,
5873
5874   EL_CUSTOM_START + 32,
5875   EL_CUSTOM_START + 33,
5876   EL_CUSTOM_START + 34,
5877   EL_CUSTOM_START + 35,
5878
5879   EL_CUSTOM_START + 36,
5880   EL_CUSTOM_START + 37,
5881   EL_CUSTOM_START + 38,
5882   EL_CUSTOM_START + 39,
5883
5884   EL_CUSTOM_START + 40,
5885   EL_CUSTOM_START + 41,
5886   EL_CUSTOM_START + 42,
5887   EL_CUSTOM_START + 43,
5888
5889   EL_CUSTOM_START + 44,
5890   EL_CUSTOM_START + 45,
5891   EL_CUSTOM_START + 46,
5892   EL_CUSTOM_START + 47,
5893
5894   EL_CUSTOM_START + 48,
5895   EL_CUSTOM_START + 49,
5896   EL_CUSTOM_START + 50,
5897   EL_CUSTOM_START + 51,
5898
5899   EL_CUSTOM_START + 52,
5900   EL_CUSTOM_START + 53,
5901   EL_CUSTOM_START + 54,
5902   EL_CUSTOM_START + 55,
5903
5904   EL_CUSTOM_START + 56,
5905   EL_CUSTOM_START + 57,
5906   EL_CUSTOM_START + 58,
5907   EL_CUSTOM_START + 59,
5908
5909   EL_CUSTOM_START + 60,
5910   EL_CUSTOM_START + 61,
5911   EL_CUSTOM_START + 62,
5912   EL_CUSTOM_START + 63,
5913
5914   EL_CUSTOM_START + 64,
5915   EL_CUSTOM_START + 65,
5916   EL_CUSTOM_START + 66,
5917   EL_CUSTOM_START + 67,
5918
5919   EL_CUSTOM_START + 68,
5920   EL_CUSTOM_START + 69,
5921   EL_CUSTOM_START + 70,
5922   EL_CUSTOM_START + 71,
5923
5924   EL_CUSTOM_START + 72,
5925   EL_CUSTOM_START + 73,
5926   EL_CUSTOM_START + 74,
5927   EL_CUSTOM_START + 75,
5928
5929   EL_CUSTOM_START + 76,
5930   EL_CUSTOM_START + 77,
5931   EL_CUSTOM_START + 78,
5932   EL_CUSTOM_START + 79,
5933
5934   EL_CUSTOM_START + 80,
5935   EL_CUSTOM_START + 81,
5936   EL_CUSTOM_START + 82,
5937   EL_CUSTOM_START + 83,
5938
5939   EL_CUSTOM_START + 84,
5940   EL_CUSTOM_START + 85,
5941   EL_CUSTOM_START + 86,
5942   EL_CUSTOM_START + 87,
5943
5944   EL_CUSTOM_START + 88,
5945   EL_CUSTOM_START + 89,
5946   EL_CUSTOM_START + 90,
5947   EL_CUSTOM_START + 91,
5948
5949   EL_CUSTOM_START + 92,
5950   EL_CUSTOM_START + 93,
5951   EL_CUSTOM_START + 94,
5952   EL_CUSTOM_START + 95,
5953
5954   EL_CUSTOM_START + 96,
5955   EL_CUSTOM_START + 97,
5956   EL_CUSTOM_START + 98,
5957   EL_CUSTOM_START + 99,
5958
5959   EL_CUSTOM_START + 100,
5960   EL_CUSTOM_START + 101,
5961   EL_CUSTOM_START + 102,
5962   EL_CUSTOM_START + 103,
5963
5964   EL_CUSTOM_START + 104,
5965   EL_CUSTOM_START + 105,
5966   EL_CUSTOM_START + 106,
5967   EL_CUSTOM_START + 107,
5968
5969   EL_CUSTOM_START + 108,
5970   EL_CUSTOM_START + 109,
5971   EL_CUSTOM_START + 110,
5972   EL_CUSTOM_START + 111,
5973
5974   EL_CUSTOM_START + 112,
5975   EL_CUSTOM_START + 113,
5976   EL_CUSTOM_START + 114,
5977   EL_CUSTOM_START + 115,
5978
5979   EL_CUSTOM_START + 116,
5980   EL_CUSTOM_START + 117,
5981   EL_CUSTOM_START + 118,
5982   EL_CUSTOM_START + 119,
5983
5984   EL_CUSTOM_START + 120,
5985   EL_CUSTOM_START + 121,
5986   EL_CUSTOM_START + 122,
5987   EL_CUSTOM_START + 123,
5988
5989   EL_CUSTOM_START + 124,
5990   EL_CUSTOM_START + 125,
5991   EL_CUSTOM_START + 126,
5992   EL_CUSTOM_START + 127,
5993
5994   EL_CUSTOM_START + 128,
5995   EL_CUSTOM_START + 129,
5996   EL_CUSTOM_START + 130,
5997   EL_CUSTOM_START + 131,
5998
5999   EL_CUSTOM_START + 132,
6000   EL_CUSTOM_START + 133,
6001   EL_CUSTOM_START + 134,
6002   EL_CUSTOM_START + 135,
6003
6004   EL_CUSTOM_START + 136,
6005   EL_CUSTOM_START + 137,
6006   EL_CUSTOM_START + 138,
6007   EL_CUSTOM_START + 139,
6008
6009   EL_CUSTOM_START + 140,
6010   EL_CUSTOM_START + 141,
6011   EL_CUSTOM_START + 142,
6012   EL_CUSTOM_START + 143,
6013
6014   EL_CUSTOM_START + 144,
6015   EL_CUSTOM_START + 145,
6016   EL_CUSTOM_START + 146,
6017   EL_CUSTOM_START + 147,
6018
6019   EL_CUSTOM_START + 148,
6020   EL_CUSTOM_START + 149,
6021   EL_CUSTOM_START + 150,
6022   EL_CUSTOM_START + 151,
6023
6024   EL_CUSTOM_START + 152,
6025   EL_CUSTOM_START + 153,
6026   EL_CUSTOM_START + 154,
6027   EL_CUSTOM_START + 155,
6028
6029   EL_CUSTOM_START + 156,
6030   EL_CUSTOM_START + 157,
6031   EL_CUSTOM_START + 158,
6032   EL_CUSTOM_START + 159,
6033
6034   EL_CUSTOM_START + 160,
6035   EL_CUSTOM_START + 161,
6036   EL_CUSTOM_START + 162,
6037   EL_CUSTOM_START + 163,
6038
6039   EL_CUSTOM_START + 164,
6040   EL_CUSTOM_START + 165,
6041   EL_CUSTOM_START + 166,
6042   EL_CUSTOM_START + 167,
6043
6044   EL_CUSTOM_START + 168,
6045   EL_CUSTOM_START + 169,
6046   EL_CUSTOM_START + 170,
6047   EL_CUSTOM_START + 171,
6048
6049   EL_CUSTOM_START + 172,
6050   EL_CUSTOM_START + 173,
6051   EL_CUSTOM_START + 174,
6052   EL_CUSTOM_START + 175,
6053
6054   EL_CUSTOM_START + 176,
6055   EL_CUSTOM_START + 177,
6056   EL_CUSTOM_START + 178,
6057   EL_CUSTOM_START + 179,
6058
6059   EL_CUSTOM_START + 180,
6060   EL_CUSTOM_START + 181,
6061   EL_CUSTOM_START + 182,
6062   EL_CUSTOM_START + 183,
6063
6064   EL_CUSTOM_START + 184,
6065   EL_CUSTOM_START + 185,
6066   EL_CUSTOM_START + 186,
6067   EL_CUSTOM_START + 187,
6068
6069   EL_CUSTOM_START + 188,
6070   EL_CUSTOM_START + 189,
6071   EL_CUSTOM_START + 190,
6072   EL_CUSTOM_START + 191,
6073
6074   EL_CUSTOM_START + 192,
6075   EL_CUSTOM_START + 193,
6076   EL_CUSTOM_START + 194,
6077   EL_CUSTOM_START + 195,
6078
6079   EL_CUSTOM_START + 196,
6080   EL_CUSTOM_START + 197,
6081   EL_CUSTOM_START + 198,
6082   EL_CUSTOM_START + 199,
6083
6084   EL_CUSTOM_START + 200,
6085   EL_CUSTOM_START + 201,
6086   EL_CUSTOM_START + 202,
6087   EL_CUSTOM_START + 203,
6088
6089   EL_CUSTOM_START + 204,
6090   EL_CUSTOM_START + 205,
6091   EL_CUSTOM_START + 206,
6092   EL_CUSTOM_START + 207,
6093
6094   EL_CUSTOM_START + 208,
6095   EL_CUSTOM_START + 209,
6096   EL_CUSTOM_START + 210,
6097   EL_CUSTOM_START + 211,
6098
6099   EL_CUSTOM_START + 212,
6100   EL_CUSTOM_START + 213,
6101   EL_CUSTOM_START + 214,
6102   EL_CUSTOM_START + 215,
6103
6104   EL_CUSTOM_START + 216,
6105   EL_CUSTOM_START + 217,
6106   EL_CUSTOM_START + 218,
6107   EL_CUSTOM_START + 219,
6108
6109   EL_CUSTOM_START + 220,
6110   EL_CUSTOM_START + 221,
6111   EL_CUSTOM_START + 222,
6112   EL_CUSTOM_START + 223,
6113
6114   EL_CUSTOM_START + 224,
6115   EL_CUSTOM_START + 225,
6116   EL_CUSTOM_START + 226,
6117   EL_CUSTOM_START + 227,
6118
6119   EL_CUSTOM_START + 228,
6120   EL_CUSTOM_START + 229,
6121   EL_CUSTOM_START + 230,
6122   EL_CUSTOM_START + 231,
6123
6124   EL_CUSTOM_START + 232,
6125   EL_CUSTOM_START + 233,
6126   EL_CUSTOM_START + 234,
6127   EL_CUSTOM_START + 235,
6128
6129   EL_CUSTOM_START + 236,
6130   EL_CUSTOM_START + 237,
6131   EL_CUSTOM_START + 238,
6132   EL_CUSTOM_START + 239,
6133
6134   EL_CUSTOM_START + 240,
6135   EL_CUSTOM_START + 241,
6136   EL_CUSTOM_START + 242,
6137   EL_CUSTOM_START + 243,
6138
6139   EL_CUSTOM_START + 244,
6140   EL_CUSTOM_START + 245,
6141   EL_CUSTOM_START + 246,
6142   EL_CUSTOM_START + 247,
6143
6144   EL_CUSTOM_START + 248,
6145   EL_CUSTOM_START + 249,
6146   EL_CUSTOM_START + 250,
6147   EL_CUSTOM_START + 251,
6148
6149   EL_CUSTOM_START + 252,
6150   EL_CUSTOM_START + 253,
6151   EL_CUSTOM_START + 254,
6152   EL_CUSTOM_START + 255
6153 };
6154 static int *editor_hl_custom_ptr = editor_hl_custom;
6155 static int *editor_el_custom_ptr = editor_el_custom;
6156 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
6157 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
6158
6159 static int editor_hl_group[] =
6160 {
6161   EL_INTERNAL_CASCADE_GE_ACTIVE,
6162   EL_CHAR('G'),
6163   EL_CHAR('E'),
6164   EL_EMPTY,
6165 };
6166
6167 static int editor_el_group[] =
6168 {
6169   EL_GROUP_START + 0,
6170   EL_GROUP_START + 1,
6171   EL_GROUP_START + 2,
6172   EL_GROUP_START + 3,
6173
6174   EL_GROUP_START + 4,
6175   EL_GROUP_START + 5,
6176   EL_GROUP_START + 6,
6177   EL_GROUP_START + 7,
6178
6179   EL_GROUP_START + 8,
6180   EL_GROUP_START + 9,
6181   EL_GROUP_START + 10,
6182   EL_GROUP_START + 11,
6183
6184   EL_GROUP_START + 12,
6185   EL_GROUP_START + 13,
6186   EL_GROUP_START + 14,
6187   EL_GROUP_START + 15,
6188
6189   EL_GROUP_START + 16,
6190   EL_GROUP_START + 17,
6191   EL_GROUP_START + 18,
6192   EL_GROUP_START + 19,
6193
6194   EL_GROUP_START + 20,
6195   EL_GROUP_START + 21,
6196   EL_GROUP_START + 22,
6197   EL_GROUP_START + 23,
6198
6199   EL_GROUP_START + 24,
6200   EL_GROUP_START + 25,
6201   EL_GROUP_START + 26,
6202   EL_GROUP_START + 27,
6203
6204   EL_GROUP_START + 28,
6205   EL_GROUP_START + 29,
6206   EL_GROUP_START + 30,
6207   EL_GROUP_START + 31
6208 };
6209 static int *editor_hl_group_ptr = editor_hl_group;
6210 static int *editor_el_group_ptr = editor_el_group;
6211 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
6212 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
6213
6214 static int editor_hl_empty_space[] =
6215 {
6216   EL_INTERNAL_CASCADE_ES_ACTIVE,
6217   EL_CHAR('E'),
6218   EL_CHAR('S'),
6219   EL_EMPTY,
6220 };
6221
6222 static int editor_el_empty_space[] =
6223 {
6224   EL_EMPTY_SPACE_1,
6225   EL_EMPTY_SPACE_2,
6226   EL_EMPTY_SPACE_3,
6227   EL_EMPTY_SPACE_4,
6228
6229   EL_EMPTY_SPACE_5,
6230   EL_EMPTY_SPACE_6,
6231   EL_EMPTY_SPACE_7,
6232   EL_EMPTY_SPACE_8,
6233
6234   EL_EMPTY_SPACE_9,
6235   EL_EMPTY_SPACE_10,
6236   EL_EMPTY_SPACE_11,
6237   EL_EMPTY_SPACE_12,
6238
6239   EL_EMPTY_SPACE_13,
6240   EL_EMPTY_SPACE_14,
6241   EL_EMPTY_SPACE_15,
6242   EL_EMPTY_SPACE_16
6243 };
6244 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
6245 static int *editor_el_empty_space_ptr = editor_el_empty_space;
6246 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
6247 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
6248
6249 static int editor_hl_reference[] =
6250 {
6251   EL_INTERNAL_CASCADE_REF_ACTIVE,
6252   EL_CHAR('R'),
6253   EL_CHAR('E'),
6254   EL_CHAR('F')
6255 };
6256
6257 static int editor_el_reference[] =
6258 {
6259   EL_TRIGGER_PLAYER,
6260   EL_TRIGGER_ELEMENT,
6261   EL_TRIGGER_CE_VALUE,
6262   EL_TRIGGER_CE_SCORE,
6263
6264   EL_SELF,
6265   EL_ANY_ELEMENT,
6266   EL_CURRENT_CE_VALUE,
6267   EL_CURRENT_CE_SCORE,
6268
6269   EL_PREV_CE_8,
6270   EL_PREV_CE_7,
6271   EL_PREV_CE_6,
6272   EL_PREV_CE_5,
6273
6274   EL_PREV_CE_4,
6275   EL_PREV_CE_3,
6276   EL_PREV_CE_2,
6277   EL_PREV_CE_1,
6278
6279   EL_NEXT_CE_1,
6280   EL_NEXT_CE_2,
6281   EL_NEXT_CE_3,
6282   EL_NEXT_CE_4,
6283
6284   EL_NEXT_CE_5,
6285   EL_NEXT_CE_6,
6286   EL_NEXT_CE_7,
6287   EL_NEXT_CE_8,
6288 };
6289 static int *editor_hl_reference_ptr = editor_hl_reference;
6290 static int *editor_el_reference_ptr = editor_el_reference;
6291 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
6292 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
6293
6294 static int editor_hl_user_defined[] =
6295 {
6296   EL_INTERNAL_CASCADE_USER_ACTIVE,
6297   EL_CHAR('M'),
6298   EL_CHAR('Y'),
6299   EL_EMPTY,
6300 };
6301
6302 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
6303 static int *editor_el_user_defined_ptr = NULL;
6304 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
6305 static int num_editor_el_user_defined = 0;
6306
6307 static int editor_hl_dynamic[] =
6308 {
6309   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
6310   EL_CHAR('U'),
6311   EL_CHAR('S'),
6312   EL_CHAR('E'),
6313 };
6314
6315 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
6316 static int *editor_el_dynamic_ptr = NULL;
6317 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
6318 static int num_editor_el_dynamic = 0;
6319
6320 static int editor_hl_empty[] = { EL_EMPTY };
6321 static int *editor_el_empty = NULL;     // dynamically allocated
6322
6323 static int *editor_hl_empty_ptr = editor_hl_empty;
6324 static int *editor_el_empty_ptr = NULL;
6325 static int num_editor_hl_empty = 0;
6326 static int num_editor_el_empty = 0;     // dynamically determined, if needed
6327
6328 static boolean use_el_empty = FALSE;
6329
6330 static int *editor_elements = NULL;     // dynamically allocated
6331 static int num_editor_elements = 0;     // dynamically determined
6332
6333 static boolean setup_editor_cascade_never = FALSE;
6334
6335 static boolean setup_editor_el_players                  = TRUE;
6336 static boolean setup_editor_el_boulderdash              = TRUE;
6337 static boolean setup_editor_el_boulderdash_native       = TRUE;
6338 static boolean setup_editor_el_emerald_mine             = TRUE;
6339 static boolean setup_editor_el_emerald_mine_club        = TRUE;
6340 static boolean setup_editor_el_more                     = TRUE;
6341 static boolean setup_editor_el_sokoban                  = TRUE;
6342 static boolean setup_editor_el_supaplex                 = TRUE;
6343 static boolean setup_editor_el_diamond_caves            = TRUE;
6344 static boolean setup_editor_el_dx_boulderdash           = TRUE;
6345 static boolean setup_editor_el_mirror_magic             = TRUE;
6346 static boolean setup_editor_el_deflektor                = TRUE;
6347 static boolean setup_editor_el_chars                    = TRUE;
6348 static boolean setup_editor_el_steel_chars              = TRUE;
6349 static boolean setup_editor_el_custom                   = TRUE;
6350 static boolean setup_editor_el_user_defined             = TRUE;
6351 static boolean setup_editor_el_dynamic                  = TRUE;
6352
6353 static int editor_hl_unused[] = { EL_EMPTY };
6354 static int *editor_hl_unused_ptr = editor_hl_unused;
6355 static int num_editor_hl_unused = 0;
6356
6357 static struct
6358 {
6359   boolean *setup_value;
6360   boolean *setup_cascade_value;
6361
6362   int **headline_list;
6363   int *headline_list_size;
6364
6365   int **element_list;
6366   int *element_list_size;
6367
6368   boolean last_setup_value;
6369 }
6370 editor_elements_info[] =
6371 {
6372   {
6373     &setup_editor_el_players,
6374     &setup_editor_cascade_never,
6375     &editor_hl_unused_ptr,              &num_editor_hl_unused,
6376     &editor_el_players_ptr,             &num_editor_el_players
6377   },
6378   {
6379     &setup_editor_el_boulderdash,
6380     &setup.editor_cascade.el_bd,
6381     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
6382     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
6383   },
6384   {
6385     &setup_editor_el_boulderdash_native,
6386     &setup.editor_cascade.el_bd_native,
6387     &editor_hl_boulderdash_native_ptr,  &num_editor_hl_boulderdash_native,
6388     &editor_el_boulderdash_native_ptr,  &num_editor_el_boulderdash_native
6389   },
6390   {
6391     &setup_editor_el_emerald_mine,
6392     &setup.editor_cascade.el_em,
6393     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
6394     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
6395   },
6396   {
6397     &setup_editor_el_emerald_mine_club,
6398     &setup.editor_cascade.el_emc,
6399     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
6400     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
6401   },
6402   {
6403     &setup_editor_el_more,
6404     &setup.editor_cascade.el_rnd,
6405     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
6406     &editor_el_rnd_ptr,                 &num_editor_el_rnd
6407   },
6408   {
6409     &setup_editor_el_sokoban,
6410     &setup.editor_cascade.el_sb,
6411     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
6412     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
6413   },
6414   {
6415     &setup_editor_el_supaplex,
6416     &setup.editor_cascade.el_sp,
6417     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
6418     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
6419   },
6420   {
6421     &setup_editor_el_diamond_caves,
6422     &setup.editor_cascade.el_dc,
6423     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
6424     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
6425   },
6426   {
6427     &setup_editor_el_dx_boulderdash,
6428     &setup.editor_cascade.el_dx,
6429     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
6430     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
6431   },
6432   {
6433     &setup_editor_el_mirror_magic,
6434     &setup.editor_cascade.el_mm,
6435     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
6436     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
6437   },
6438   {
6439     &setup_editor_el_deflektor,
6440     &setup.editor_cascade.el_df,
6441     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
6442     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
6443   },
6444   {
6445     &setup_editor_el_chars,
6446     &setup.editor_cascade.el_chars,
6447     &editor_hl_chars_ptr,               &num_editor_hl_chars,
6448     &editor_el_chars_ptr,               &num_editor_el_chars
6449   },
6450   {
6451     &setup_editor_el_steel_chars,
6452     &setup.editor_cascade.el_steel_chars,
6453     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
6454     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
6455   },
6456   {
6457     &setup_editor_el_custom,
6458     &setup.editor_cascade.el_ce,
6459     &editor_hl_custom_ptr,              &num_editor_hl_custom,
6460     &editor_el_custom_ptr,              &num_editor_el_custom
6461   },
6462   {
6463     &setup_editor_el_custom,
6464     &setup.editor_cascade.el_ge,
6465     &editor_hl_group_ptr,               &num_editor_hl_group,
6466     &editor_el_group_ptr,               &num_editor_el_group
6467   },
6468   {
6469     &setup_editor_el_custom,
6470     &setup.editor_cascade.el_es,
6471     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
6472     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
6473   },
6474   {
6475     &setup_editor_el_custom,
6476     &setup.editor_cascade.el_ref,
6477     &editor_hl_reference_ptr,           &num_editor_hl_reference,
6478     &editor_el_reference_ptr,           &num_editor_el_reference
6479   },
6480   {
6481     &setup_editor_el_user_defined,
6482     &setup.editor_cascade.el_user,
6483     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
6484     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
6485   },
6486   {
6487     &setup_editor_el_dynamic,
6488     &setup.editor_cascade.el_dynamic,
6489     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
6490     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
6491   },
6492   {
6493     &use_el_empty,
6494     &use_el_empty,
6495     &editor_hl_empty_ptr,               &num_editor_hl_empty,
6496     &editor_el_empty_ptr,               &num_editor_el_empty,
6497   },
6498   {
6499     NULL,
6500     NULL,
6501     NULL,                               NULL,
6502     NULL,                               NULL
6503   }
6504 };
6505
6506 static struct XY xy_directions[] =
6507 {
6508   { -1,  0 },
6509   { +1,  0 },
6510   {  0, -1 },
6511   {  0, +1 }
6512 };
6513
6514
6515 // ----------------------------------------------------------------------------
6516 // functions
6517 // ----------------------------------------------------------------------------
6518
6519 static int getMaxInfoTextLength(void)
6520 {
6521   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
6522 }
6523
6524 static int getTextWidthForGadget(char *text)
6525 {
6526   if (text == NULL)
6527     return 0;
6528
6529   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
6530 }
6531
6532 static int getTextWidthForDrawingArea(char *text)
6533 {
6534   if (text == NULL)
6535     return 0;
6536
6537   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_BORDER_SIZE);
6538 }
6539
6540 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
6541 {
6542   return (gi->x + gi->width + getTextWidthForGadget(text));
6543 }
6544
6545 static char *getElementInfoText(int element)
6546 {
6547   char *info_text = NULL;
6548
6549   if (element < MAX_NUM_ELEMENTS)
6550   {
6551     if (strlen(element_info[element].description) > 0)
6552       info_text = element_info[element].description;
6553     else if (element_info[element].custom_description != NULL)
6554       info_text = element_info[element].custom_description;
6555     else if (element_info[element].editor_description != NULL)
6556       info_text = element_info[element].editor_description;
6557   }
6558
6559   if (info_text == NULL)
6560     info_text = INFOTEXT_UNKNOWN_ELEMENT;
6561
6562   return info_text;
6563 }
6564
6565 static char *getElementDescriptionFilenameExt(char *basename)
6566 {
6567   char *elements_subdir = ELEMENTS_DIRECTORY;
6568   static char *elements_subdir2 = NULL;
6569   static char *filename = NULL;
6570
6571   if (elements_subdir2 == NULL)
6572     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
6573
6574   checked_free(filename);
6575
6576   // 1st try: look for element description in current level set directory
6577   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
6578   if (fileExists(filename))
6579     return filename;
6580
6581   free(filename);
6582
6583   // 2nd try: look for element description in the game's base directory
6584   filename = getPath3(options.docs_directory, elements_subdir, basename);
6585   if (fileExists(filename))
6586     return filename;
6587
6588   return NULL;
6589 }
6590
6591 static char *getElementDescriptionFilename(int element)
6592 {
6593   char basename[MAX_FILENAME_LEN];
6594   char *filename;
6595
6596   // 1st try: look for element description file for exactly this element
6597   sprintf(basename, "%s.txt", element_info[element].token_name);
6598   filename = getElementDescriptionFilenameExt(basename);
6599   if (filename != NULL)
6600     return filename;
6601
6602   // 2nd try: look for element description file for this element's class
6603   sprintf(basename, "%s.txt", element_info[element].class_name);
6604   filename = getElementDescriptionFilenameExt(basename);
6605   if (filename != NULL)
6606     return filename;
6607
6608   // 3rd try: look for generic fallback text file for any element
6609   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
6610   if (filename != NULL)
6611     return filename;
6612
6613   return NULL;
6614 }
6615
6616 static boolean suppressBorderElement(void)
6617 {
6618   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
6619           lev_fieldx <= MAX_ED_FIELDX &&
6620           lev_fieldy <= MAX_ED_FIELDY);
6621 }
6622
6623 static void InitDynamicEditorElementList(int **elements, int *num_elements)
6624 {
6625   boolean element_found[NUM_FILE_ELEMENTS];
6626   int i, x, y;
6627
6628   // initialize list of used elements to "not used"
6629   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6630     element_found[i] = FALSE;
6631
6632   // find all elements used in current level
6633   for (y = 0; y < lev_fieldy; y++)
6634   {
6635     for (x = 0; x < lev_fieldx; x++)
6636     {
6637       if (Tile[x][y] >= NUM_FILE_ELEMENTS)      // should never happen
6638         continue;
6639
6640       if (IS_MM_WALL(Tile[x][y]))
6641         element_found[map_mm_wall_element(Tile[x][y])] = TRUE;
6642       else
6643         element_found[Tile[x][y]] = TRUE;
6644     }
6645   }
6646
6647   *num_elements = 0;
6648
6649   // count number of elements used in current level
6650   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6651     if (element_found[i])
6652       (*num_elements)++;
6653
6654   // add space for up to 3 more elements for padding that may be needed
6655   *num_elements += 3;
6656
6657   // free memory for old list of elements, if needed
6658   checked_free(*elements);
6659
6660   // allocate memory for new list of elements
6661   *elements = checked_malloc(*num_elements * sizeof(int));
6662
6663   *num_elements = 0;
6664
6665   // add all elements used in current level (non-custom/group/empty elements)
6666   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6667     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) ||
6668                               IS_GROUP_ELEMENT(i) ||
6669                               IS_EMPTY_ELEMENT(i)))
6670       (*elements)[(*num_elements)++] = i;
6671
6672   // add all elements used in current level (custom/group/empty elements)
6673   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6674     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) ||
6675                              IS_GROUP_ELEMENT(i) ||
6676                              IS_EMPTY_ELEMENT(i)))
6677       (*elements)[(*num_elements)++] = i;
6678
6679   while (*num_elements % 4)     // pad with empty elements, if needed
6680     (*elements)[(*num_elements)++] = EL_EMPTY;
6681 }
6682
6683 static void ReinitializeElementList_EnableSections(void)
6684 {
6685   // default: enable all element sections
6686
6687   setup_editor_el_players               = TRUE;
6688   setup_editor_el_boulderdash           = TRUE;
6689   setup_editor_el_boulderdash_native    = TRUE;
6690   setup_editor_el_emerald_mine          = TRUE;
6691   setup_editor_el_emerald_mine_club     = TRUE;
6692   setup_editor_el_more                  = TRUE;
6693   setup_editor_el_sokoban               = TRUE;
6694   setup_editor_el_supaplex              = TRUE;
6695   setup_editor_el_diamond_caves         = TRUE;
6696   setup_editor_el_dx_boulderdash        = TRUE;
6697   setup_editor_el_mirror_magic          = TRUE;
6698   setup_editor_el_deflektor             = TRUE;
6699   setup_editor_el_chars                 = TRUE;
6700   setup_editor_el_steel_chars           = TRUE;
6701
6702   setup_editor_el_custom                = TRUE;
6703   setup_editor_el_user_defined          = TRUE;
6704   setup_editor_el_dynamic               = TRUE;
6705
6706   // now disable all element sections not to be displayed
6707
6708   if (!setup.editor.el_classic)
6709   {
6710     setup_editor_el_players             = FALSE;
6711     setup_editor_el_boulderdash         = FALSE;
6712     setup_editor_el_boulderdash_native  = FALSE;
6713     setup_editor_el_emerald_mine        = FALSE;
6714     setup_editor_el_emerald_mine_club   = FALSE;
6715     setup_editor_el_more                = FALSE;
6716     setup_editor_el_sokoban             = FALSE;
6717     setup_editor_el_supaplex            = FALSE;
6718     setup_editor_el_diamond_caves       = FALSE;
6719     setup_editor_el_dx_boulderdash      = FALSE;
6720     setup_editor_el_mirror_magic        = FALSE;
6721     setup_editor_el_deflektor           = FALSE;
6722     setup_editor_el_chars               = FALSE;
6723     setup_editor_el_steel_chars         = FALSE;
6724   }
6725
6726   if (!setup.editor.el_custom)
6727   {
6728     setup_editor_el_custom              = FALSE;
6729   }
6730
6731   if (!setup.editor.el_user_defined)
6732   {
6733     setup_editor_el_user_defined        = FALSE;
6734   }
6735
6736   if (!setup.editor.el_dynamic)
6737   {
6738     setup_editor_el_dynamic             = FALSE;
6739   }
6740
6741   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
6742   {
6743     setup_editor_el_boulderdash_native  = FALSE;
6744     setup_editor_el_mirror_magic        = FALSE;
6745     setup_editor_el_deflektor           = FALSE;
6746   }
6747   else if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
6748   {
6749     setup_editor_el_players             = FALSE;
6750     setup_editor_el_boulderdash         = FALSE;
6751     setup_editor_el_emerald_mine        = FALSE;
6752     setup_editor_el_emerald_mine_club   = FALSE;
6753     setup_editor_el_more                = FALSE;
6754     setup_editor_el_sokoban             = FALSE;
6755     setup_editor_el_supaplex            = FALSE;
6756     setup_editor_el_diamond_caves       = FALSE;
6757     setup_editor_el_dx_boulderdash      = FALSE;
6758     setup_editor_el_mirror_magic        = FALSE;
6759     setup_editor_el_deflektor           = FALSE;
6760     setup_editor_el_chars               = FALSE;
6761     setup_editor_el_steel_chars         = FALSE;
6762
6763     setup_editor_el_custom              = FALSE;
6764   }
6765   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
6766   {
6767     setup_editor_el_boulderdash         = FALSE;
6768     setup_editor_el_boulderdash_native  = FALSE;
6769     setup_editor_el_more                = FALSE;
6770     setup_editor_el_sokoban             = FALSE;
6771     setup_editor_el_supaplex            = FALSE;
6772     setup_editor_el_diamond_caves       = FALSE;
6773     setup_editor_el_dx_boulderdash      = FALSE;
6774     setup_editor_el_mirror_magic        = FALSE;
6775     setup_editor_el_deflektor           = FALSE;
6776     setup_editor_el_steel_chars         = FALSE;
6777
6778     setup_editor_el_custom              = FALSE;
6779   }
6780   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
6781   {
6782     setup_editor_el_players             = FALSE;
6783     setup_editor_el_boulderdash         = FALSE;
6784     setup_editor_el_boulderdash_native  = FALSE;
6785     setup_editor_el_emerald_mine        = FALSE;
6786     setup_editor_el_emerald_mine_club   = FALSE;
6787     setup_editor_el_more                = FALSE;
6788     setup_editor_el_sokoban             = FALSE;
6789     setup_editor_el_diamond_caves       = FALSE;
6790     setup_editor_el_dx_boulderdash      = FALSE;
6791     setup_editor_el_mirror_magic        = FALSE;
6792     setup_editor_el_deflektor           = FALSE;
6793     setup_editor_el_chars               = FALSE;
6794     setup_editor_el_steel_chars         = FALSE;
6795
6796     setup_editor_el_custom              = FALSE;
6797   }
6798   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
6799   {
6800     setup_editor_el_players             = FALSE;
6801     setup_editor_el_boulderdash         = FALSE;
6802     setup_editor_el_boulderdash_native  = FALSE;
6803     setup_editor_el_emerald_mine        = FALSE;
6804     setup_editor_el_emerald_mine_club   = FALSE;
6805     setup_editor_el_more                = FALSE;
6806     setup_editor_el_sokoban             = FALSE;
6807     setup_editor_el_supaplex            = FALSE;
6808     setup_editor_el_diamond_caves       = FALSE;
6809     setup_editor_el_dx_boulderdash      = FALSE;
6810     setup_editor_el_steel_chars         = FALSE;
6811
6812     setup_editor_el_custom              = FALSE;
6813   }
6814 }
6815
6816 static void ReinitializeElementList(void)
6817 {
6818   static boolean initialization_needed = TRUE;
6819   int pos = 0;
6820   int i, j;
6821
6822   ReinitializeElementList_EnableSections();
6823
6824   if (initialization_needed)
6825   {
6826     LoadSetup_EditorCascade();          // load last editor cascade state
6827
6828     // initialize editor cascade element from saved cascade state
6829     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6830     {
6831       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
6832       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
6833
6834       if (IS_EDITOR_CASCADE(*cascade_element))
6835         *cascade_element =
6836           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
6837            EL_CASCADE_INACTIVE(*cascade_element));
6838     }
6839
6840     initialization_needed = FALSE;
6841   }
6842
6843   checked_free(editor_elements);
6844
6845   // reload optional user defined element list for each invocation of editor
6846   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
6847                                    &num_editor_el_user_defined);
6848
6849   // initialize dynamic level element list for each invocation of editor
6850   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
6851                                &num_editor_el_dynamic);
6852
6853   // initialize list of empty elements (used for padding, if needed)
6854   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6855     editor_el_empty[i] = EL_EMPTY;
6856
6857   // do some sanity checks for each element from element list
6858   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6859   {
6860     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6861     {
6862       int element = (*editor_elements_info[i].element_list)[j];
6863
6864       if (element >= NUM_FILE_ELEMENTS)
6865         Warn("editor element %d is runtime element", element);
6866
6867       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
6868         Warn("no element description text for element %d", element);
6869     }
6870   }
6871
6872   num_editor_elements = 0;
6873   use_el_empty = FALSE;
6874
6875   // determine size of element list
6876   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6877   {
6878     if (*editor_elements_info[i].setup_value)
6879     {
6880       boolean found_inactive_cascade = FALSE;
6881
6882       if (setup.editor.el_headlines)
6883       {
6884         // required for correct padding of palette headline buttons
6885         if (*editor_elements_info[i].headline_list_size > 0)
6886           num_editor_elements += ED_ELEMENTLIST_COLS;
6887
6888         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6889         {
6890           int element = (*editor_elements_info[i].headline_list)[j];
6891
6892           if (IS_EDITOR_CASCADE_INACTIVE(element))
6893             found_inactive_cascade = TRUE;
6894         }
6895       }
6896
6897       if (found_inactive_cascade)
6898         continue;
6899
6900       // required for correct padding of palette element buttons
6901       int element_list_size = *editor_elements_info[i].element_list_size;
6902       int element_rows =
6903         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6904       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6905
6906       num_editor_elements += element_buttons;
6907     }
6908   }
6909
6910   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
6911   {
6912     // offer at least as many elements as element buttons exist
6913     use_el_empty = TRUE;
6914     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
6915
6916     num_editor_elements += num_editor_el_empty;
6917   }
6918   else
6919   {
6920     num_editor_el_empty = 0;
6921   }
6922
6923   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
6924
6925   // fill element list
6926   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6927   {
6928     boolean found_inactive_cascade = FALSE;
6929
6930     if (*editor_elements_info[i].setup_value)
6931     {
6932       if (setup.editor.el_headlines)
6933       {
6934         // required for correct padding of palette headline buttons
6935         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
6936                              ED_ELEMENTLIST_COLS : 0);
6937
6938         for (j = 0; j < headline_size; j++)
6939         {
6940           // use empty elements for padding of palette headline buttons
6941           int element = (j < *editor_elements_info[i].headline_list_size ?
6942                          (*editor_elements_info[i].headline_list)[j] :
6943                          editor_el_empty[0]);
6944
6945           editor_elements[pos++] = element;
6946
6947           if (IS_EDITOR_CASCADE_INACTIVE(element))
6948             found_inactive_cascade = TRUE;
6949         }
6950       }
6951
6952       if (found_inactive_cascade)
6953         continue;
6954
6955       // required for correct padding of palette element buttons
6956       int element_list_size = *editor_elements_info[i].element_list_size;
6957       int element_rows =
6958         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6959       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6960
6961       // copy all elements from element list
6962       for (j = 0; j < element_list_size; j++)
6963         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
6964
6965       // use empty elements for padding of palette element buttons
6966       for (j = 0; j < element_buttons - element_list_size; j++)
6967         editor_elements[pos++] = editor_el_empty[0];
6968     }
6969   }
6970
6971   // (this function is also called before editor gadgets are initialized!)
6972   AdjustElementListScrollbar();
6973 }
6974
6975 void PrintEditorElementList(void)
6976 {
6977   boolean *stop = &setup_editor_el_user_defined;
6978   int i, j;
6979
6980   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
6981   {
6982     int cascade_element = (*editor_elements_info[i].headline_list)[0];
6983
6984     if (IS_EDITOR_CASCADE(cascade_element))
6985     {
6986       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
6987       char *headline = element_info[cascade_element_show].editor_description;
6988
6989       PrintLineWithPrefix("# ", "-", 77);
6990       Print("# %s\n", headline);
6991       PrintLineWithPrefix("# ", "-", 77);
6992     }
6993
6994     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6995     {
6996       int element = (*editor_elements_info[i].headline_list)[j];
6997
6998       if (IS_EDITOR_CASCADE(element))
6999         element = EL_CHAR_MINUS;
7000
7001       Print("# %s\n", element_info[element].token_name);
7002     }
7003
7004     if (j > 0)
7005       Print("#\n");
7006
7007     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
7008     {
7009       int element = (*editor_elements_info[i].element_list)[j];
7010
7011       Print("# %s\n", element_info[element].token_name);
7012     }
7013
7014     if (j > 0)
7015       Print("#\n");
7016   }
7017 }
7018
7019 static void ReinitializeElementListButtons(void)
7020 {
7021   static boolean last_setup_value_headlines = FALSE;
7022   static boolean initialization_needed = TRUE;
7023   int i;
7024
7025   if (!initialization_needed)   // check if editor element setup has changed
7026   {
7027     if (last_setup_value_headlines != setup.editor.el_headlines)
7028       initialization_needed = TRUE;
7029
7030     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7031       if (editor_elements_info[i].last_setup_value !=
7032           *editor_elements_info[i].setup_value)
7033         initialization_needed = TRUE;
7034   }
7035
7036   if (!initialization_needed)
7037     return;
7038
7039   FreeLevelEditorGadgets();
7040   CreateLevelEditorGadgets();
7041
7042   // store current setup values for next invocation of this function
7043   last_setup_value_headlines = setup.editor.el_headlines;
7044   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
7045     editor_elements_info[i].last_setup_value =
7046       *editor_elements_info[i].setup_value;
7047
7048   initialization_needed = FALSE;
7049 }
7050
7051 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
7052                               boolean input)
7053 {
7054   int border_graphic =
7055     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
7056   struct GraphicInfo *g = &graphic_info[border_graphic];
7057   Bitmap *src_bitmap = g->bitmap;
7058   int src_x = g->src_x;
7059   int src_y = g->src_y;
7060   int border_size = g->border_size;
7061   int border_xpos = g->width  - border_size;
7062   int border_ypos = g->height - border_size;
7063   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7064   int i;
7065
7066   BlitBitmap(src_bitmap, drawto, src_x, src_y,
7067              border_size, border_size,
7068              dest_x - border_size, dest_y - border_size);
7069   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
7070              border_size, border_size,
7071              dest_x + width, dest_y - border_size);
7072   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
7073              border_size, border_size,
7074              dest_x - border_size, dest_y + height);
7075   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
7076              border_size, border_size,
7077              dest_x + width, dest_y + height);
7078
7079   for (i = 0; i < width / tilesize; i++)
7080   {
7081     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
7082                tilesize, border_size,
7083                dest_x + i * tilesize, dest_y - border_size);
7084     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
7085                tilesize, border_size,
7086                dest_x + i * tilesize, dest_y + height);
7087   }
7088
7089   for (i = 0; i < height / tilesize; i++)
7090   {
7091     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
7092                border_size, tilesize,
7093                dest_x - border_size, dest_y + i * tilesize);
7094     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
7095                border_size, tilesize,
7096                dest_x + width, dest_y + i * tilesize);
7097   }
7098
7099   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
7100 }
7101
7102 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
7103 {
7104   int xsize_tile = MAX(ed_tilesize, xsize);
7105   int ysize_tile = MAX(ed_tilesize, ysize);
7106   int xsize_full = xsize + 1;
7107   int ysize_full = ysize + 1;
7108   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
7109   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
7110   Pixel line_color = getTabulatorBarColor();
7111
7112   if (line_color == BLACK_PIXEL)                // black => transparent
7113     return;
7114
7115   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
7116   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
7117   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
7118 }
7119
7120 static void DrawEditorLevelBorderLinesIfNeeded(void)
7121 {
7122   int xsize = lev_fieldx * ed_tilesize;
7123   int ysize = lev_fieldy * ed_tilesize;
7124   int line_size = getTabulatorBarHeight();
7125
7126   if (!suppressBorderElement())
7127     return;
7128
7129   // draw little border line around editable level playfield
7130
7131   if (xsize < SXSIZE)
7132     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
7133
7134   if (ysize < SYSIZE)
7135     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
7136
7137   if (xsize < SXSIZE && ysize < SYSIZE)
7138     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
7139 }
7140
7141 static void DrawEditorElement(int x, int y, int element)
7142 {
7143   DrawSizedElement(x, y, element, ed_tilesize);
7144 }
7145
7146 static void DrawEditorElementThruMask(int x, int y, int element)
7147 {
7148   DrawSizedElementThruMask(x, y, element, ed_tilesize);
7149 }
7150
7151 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
7152 {
7153   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
7154 }
7155
7156 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
7157 {
7158   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
7159   DrawEditorLevelBorderLinesIfNeeded();
7160 }
7161
7162 static void DrawDrawingArea(int id)
7163 {
7164   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7165   int x, y;
7166
7167   int *value = drawingarea_info[id].value;
7168   int area_xsize = drawingarea_info[id].area_xsize;
7169   int area_ysize = drawingarea_info[id].area_ysize;
7170   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7171
7172   for (x = 0; x < area_xsize; x++)
7173     for (y = 0; y < area_ysize; y++)
7174       DrawSizedGraphicExt(drawto,
7175                           gi->x + x * tilesize,
7176                           gi->y + y * tilesize,
7177                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
7178 }
7179
7180 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
7181 {
7182   int x, y;
7183   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
7184   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
7185
7186   BlitBitmap(drawto, drawto,
7187              SX + (dx == -1 ? ed_tilesize : 0),
7188              SY + (dy == -1 ? ed_tilesize : 0),
7189              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
7190              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
7191              SX + (dx == +1 ? ed_tilesize : 0),
7192              SY + (dy == +1 ? ed_tilesize : 0));
7193
7194   if (dx)
7195   {
7196     x = (dx == 1 ? 0 : ed_fieldx - 1);
7197     for (y = 0; y < ed_fieldy; y++)
7198       DrawEditorElementOrWall(x, y, from_x, from_y);
7199   }
7200   else if (dy)
7201   {
7202     y = (dy == 1 ? 0 : ed_fieldy - 1);
7203     for (x = 0; x < ed_fieldx; x++)
7204       DrawEditorElementOrWall(x, y, from_x, from_y);
7205   }
7206
7207   redraw_mask |= REDRAW_FIELD;
7208   BackToFront();
7209 }
7210
7211 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
7212                                    int *x, int *y)
7213 {
7214   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
7215 }
7216
7217 static void CreateControlButtons(void)
7218 {
7219   struct GadgetInfo *gi;
7220   int i;
7221
7222   // create toolbox buttons
7223   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7224   {
7225     int type_id = controlbutton_info[i].gadget_id;      // same as gadget ID here
7226     int id = controlbutton_info[i].gadget_id;
7227     int type = controlbutton_info[i].gadget_type;
7228     int graphic = controlbutton_info[i].graphic;
7229     struct XYTileSize *pos = controlbutton_info[i].pos;
7230     struct GraphicInfo *gd = &graphic_info[graphic];
7231     Bitmap *deco_bitmap = NULL;
7232     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
7233     int tile_size = 0, deco_shift = 0;
7234     boolean deco_masked = FALSE;
7235     int gd_x1 = gd->src_x;
7236     int gd_y1 = gd->src_y;
7237     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7238     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7239     int gd_x1a = gd->src_x + gd->active_xoffset;
7240     int gd_y1a = gd->src_y + gd->active_yoffset;
7241     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7242     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7243     int x = pos->x;
7244     int y = pos->y;
7245     unsigned int event_mask;
7246     int radio_button_nr = RADIO_NR_NONE;
7247     boolean checked = FALSE;
7248
7249     if (type_id != i)
7250       Fail("'controlbutton_info' structure corrupted at index %d -- please fix", i);
7251
7252     if (type == GD_TYPE_RADIO_BUTTON)
7253     {
7254       event_mask = GD_EVENT_PRESSED;
7255       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
7256
7257       if (id == drawing_function)
7258         checked = TRUE;
7259     }
7260     else
7261     {
7262       if (id == GADGET_ID_WRAP_LEFT ||
7263           id == GADGET_ID_WRAP_RIGHT ||
7264           id == GADGET_ID_WRAP_UP ||
7265           id == GADGET_ID_WRAP_DOWN)
7266         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7267       else
7268         event_mask = GD_EVENT_RELEASED;
7269     }
7270
7271     if (id == GADGET_ID_PROPERTIES ||
7272         id == GADGET_ID_PALETTE)
7273     {
7274       x += DX;
7275       y += DY;
7276     }
7277     else if (id == GADGET_ID_ELEMENT_LEFT ||
7278              id == GADGET_ID_ELEMENT_MIDDLE ||
7279              id == GADGET_ID_ELEMENT_RIGHT)
7280     {
7281       x += DX;
7282       y += DY;
7283
7284       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
7285                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
7286                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
7287
7288       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
7289                                    editor.button.element_left.tile_size :
7290                                    id == GADGET_ID_ELEMENT_MIDDLE ?
7291                                    editor.button.element_middle.tile_size :
7292                                    id == GADGET_ID_ELEMENT_RIGHT ?
7293                                    editor.button.element_right.tile_size : 0);
7294
7295       // make sure that decoration does not overlap gadget border
7296       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
7297
7298       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
7299
7300       deco_xpos = (gd->width  - tile_size) / 2;
7301       deco_ypos = (gd->height - tile_size) / 2;
7302       deco_shift = 1;
7303       deco_masked = gd->draw_masked;
7304     }
7305     else
7306     {
7307       x += EX;
7308       y += EY;
7309     }
7310
7311     gi = CreateGadget(GDI_CUSTOM_ID, id,
7312                       GDI_CUSTOM_TYPE_ID, type_id,
7313                       GDI_IMAGE_ID, graphic,
7314                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
7315                       GDI_X, x,
7316                       GDI_Y, y,
7317                       GDI_WIDTH, gd->width,
7318                       GDI_HEIGHT, gd->height,
7319                       GDI_TYPE, type,
7320                       GDI_STATE, GD_BUTTON_UNPRESSED,
7321                       GDI_RADIO_NR, radio_button_nr,
7322                       GDI_CHECKED, checked,
7323                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7324                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7325                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7326                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7327                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7328                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7329                       GDI_DECORATION_SIZE, tile_size, tile_size,
7330                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
7331                       GDI_DECORATION_MASKED, deco_masked,
7332                       GDI_EVENT_MASK, event_mask,
7333                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7334                       GDI_CALLBACK_ACTION, HandleControlButtons,
7335                       GDI_END);
7336
7337     if (gi == NULL)
7338       Fail("cannot create gadget");
7339
7340     level_editor_gadget[id] = gi;
7341   }
7342
7343   // these values are not constant, but can change at runtime
7344   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
7345   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
7346   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
7347   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
7348   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
7349   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
7350   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
7351   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
7352   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
7353   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
7354   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
7355   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
7356
7357   // create buttons for scrolling of drawing area and element list
7358   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
7359   {
7360     int id = scrollbutton_info[i].gadget_id;
7361     int type_id = scrollbutton_info[i].gadget_type_id;
7362     int graphic = scrollbutton_info[i].graphic;
7363     struct GraphicInfo *gd = &graphic_info[graphic];
7364     Bitmap *gd_bitmap = gd->bitmap;
7365     int gd_x1 = gd->src_x;
7366     int gd_y1 = gd->src_y;
7367     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7368     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7369     int width  = gd->width;
7370     int height = gd->height;
7371     int x = scrollbutton_pos[i].x;
7372     int y = scrollbutton_pos[i].y;
7373     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7374
7375     if (type_id != i)
7376       Fail("'scrollbutton_info' structure corrupted at index %d -- please fix", i);
7377
7378     if (id == GADGET_ID_SCROLL_LIST_UP ||
7379         id == GADGET_ID_SCROLL_LIST_DOWN)
7380     {
7381       x += PX;
7382       y += PY;
7383     }
7384     else
7385     {
7386       x += SX;
7387       y += SY;
7388     }
7389
7390     gi = CreateGadget(GDI_CUSTOM_ID, id,
7391                       GDI_CUSTOM_TYPE_ID, type_id,
7392                       GDI_IMAGE_ID, graphic,
7393                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
7394                       GDI_X, x,
7395                       GDI_Y, y,
7396                       GDI_WIDTH, width,
7397                       GDI_HEIGHT, height,
7398                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7399                       GDI_STATE, GD_BUTTON_UNPRESSED,
7400                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7401                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7402                       GDI_EVENT_MASK, event_mask,
7403                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7404                       GDI_CALLBACK_ACTION, HandleControlButtons,
7405                       GDI_END);
7406
7407     if (gi == NULL)
7408       Fail("cannot create gadget");
7409
7410     level_editor_gadget[id] = gi;
7411   }
7412
7413   // create buttons for element list
7414   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7415   {
7416     int type_id = i;
7417     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
7418     int graphic = IMG_EDITOR_PALETTE_BUTTON;
7419     struct GraphicInfo *gd = &graphic_info[graphic];
7420     Bitmap *gd_bitmap = gd->bitmap;
7421     Bitmap *deco_bitmap;
7422     int deco_x, deco_y, deco_xpos, deco_ypos;
7423     int gd_x1 = gd->src_x;
7424     int gd_y1 = gd->src_y;
7425     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7426     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7427     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
7428     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
7429     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
7430     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
7431     int element = editor_elements[i];
7432     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
7433     unsigned int event_mask = GD_EVENT_RELEASED;
7434
7435     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
7436
7437     deco_xpos = (gd->width  - tile_size) / 2;
7438     deco_ypos = (gd->height - tile_size) / 2;
7439
7440     gi = CreateGadget(GDI_CUSTOM_ID, id,
7441                       GDI_CUSTOM_TYPE_ID, type_id,
7442                       GDI_IMAGE_ID, graphic,
7443                       GDI_INFO_TEXT, getElementInfoText(element),
7444                       GDI_X, x,
7445                       GDI_Y, y,
7446                       GDI_WIDTH, gd->width,
7447                       GDI_HEIGHT, gd->height,
7448                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7449                       GDI_STATE, GD_BUTTON_UNPRESSED,
7450                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7451                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7452                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7453                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7454                       GDI_DECORATION_SIZE, tile_size, tile_size,
7455                       GDI_DECORATION_SHIFTING, 1, 1,
7456                       GDI_EVENT_MASK, event_mask,
7457                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7458                       GDI_CALLBACK_ACTION, HandleControlButtons,
7459                       GDI_END);
7460
7461     if (gi == NULL)
7462       Fail("cannot create gadget");
7463
7464     level_editor_gadget[id] = gi;
7465   }
7466 }
7467
7468 static void CreateCounterButtons(void)
7469 {
7470   int max_infotext_len = getMaxInfoTextLength();
7471   int i;
7472
7473   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
7474   {
7475     int type_id = counterbutton_info[i].gadget_type_id;
7476     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
7477     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
7478     int j;
7479
7480     if (type_id != i)
7481       Fail("'counterbutton_info' structure corrupted at index %d -- please fix", i);
7482
7483     // determine horizontal position to the right of specified gadget
7484     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7485       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
7486            ED_GADGET_TEXT_DISTANCE);
7487
7488     // determine horizontal offset for leading text
7489     if (counterbutton_info[i].text_left != NULL)
7490       x += getTextWidthForGadget(counterbutton_info[i].text_left);
7491
7492     for (j = 0; j < 2; j++)
7493     {
7494       struct GadgetInfo *gi;
7495       int id = (j == 0 ?
7496                 counterbutton_info[i].gadget_id_down :
7497                 counterbutton_info[i].gadget_id_up);
7498       int graphic;
7499       struct GraphicInfo *gd;
7500       int gd_x1, gd_x2, gd_y1, gd_y2;
7501       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7502       char infotext[max_infotext_len + 1];
7503
7504       if (i == ED_COUNTER_ID_SELECT_LEVEL)
7505       {
7506         graphic = (j == 0 ?
7507                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
7508                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
7509
7510         event_mask |= GD_EVENT_RELEASED;
7511
7512         if (j == 0)
7513         {
7514           x = DX + editor.button.prev_level.x;
7515           y = DY + editor.button.prev_level.y;
7516         }
7517         else
7518         {
7519           x = DX + editor.button.next_level.x;
7520           y = DY + editor.button.next_level.y;
7521         }
7522       }
7523       else
7524       {
7525         graphic = (j == 0 ?
7526                    IMG_EDITOR_COUNTER_DOWN :
7527                    IMG_EDITOR_COUNTER_UP);
7528       }
7529
7530       gd = &graphic_info[graphic];
7531
7532       gd_x1 = gd->src_x;
7533       gd_y1 = gd->src_y;
7534       gd_x2 = gd->src_x + gd->pressed_xoffset;
7535       gd_y2 = gd->src_y + gd->pressed_yoffset;
7536
7537       sprintf(infotext, "%s counter value by 1, 5 or 10",
7538               (j == 0 ? "Decrease" : "Increase"));
7539
7540       gi = CreateGadget(GDI_CUSTOM_ID, id,
7541                         GDI_CUSTOM_TYPE_ID, type_id,
7542                         GDI_IMAGE_ID, graphic,
7543                         GDI_INFO_TEXT, infotext,
7544                         GDI_X, x,
7545                         GDI_Y, y,
7546                         GDI_WIDTH, gd->width,
7547                         GDI_HEIGHT, gd->height,
7548                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7549                         GDI_STATE, GD_BUTTON_UNPRESSED,
7550                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7551                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7552                         GDI_EVENT_MASK, event_mask,
7553                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7554                         GDI_CALLBACK_ACTION, HandleCounterButtons,
7555                         GDI_END);
7556
7557       if (gi == NULL)
7558         Fail("cannot create gadget");
7559
7560       level_editor_gadget[id] = gi;
7561       right_gadget_border[id] =
7562         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7563
7564       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
7565
7566       if (j == 0)
7567       {
7568         int font_type = FONT_INPUT_1;
7569         int font_type_active = FONT_INPUT_1_ACTIVE;
7570
7571         id = counterbutton_info[i].gadget_id_text;
7572
7573         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7574
7575         if (i == ED_COUNTER_ID_SELECT_LEVEL)
7576         {
7577           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
7578
7579           font_type = FONT_LEVEL_NUMBER;
7580           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
7581
7582           x = DX + editor.input.level_number.x;
7583           y = DY + editor.input.level_number.y;
7584         }
7585         else
7586         {
7587           graphic = IMG_EDITOR_COUNTER_INPUT;
7588         }
7589
7590         gd = &graphic_info[graphic];
7591
7592         gd_x1 = gd->src_x;
7593         gd_y1 = gd->src_y;
7594         gd_x2 = gd->src_x + gd->active_xoffset;
7595         gd_y2 = gd->src_y + gd->active_yoffset;
7596
7597         gi = CreateGadget(GDI_CUSTOM_ID, id,
7598                           GDI_CUSTOM_TYPE_ID, type_id,
7599                           GDI_IMAGE_ID, graphic,
7600                           GDI_INFO_TEXT, "Enter counter value",
7601                           GDI_X, x,
7602                           GDI_Y, y,
7603                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
7604                           GDI_NUMBER_VALUE, 0,
7605                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
7606                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
7607                           GDI_TEXT_SIZE, 3,     // minimal counter text size
7608                           GDI_TEXT_FONT, font_type,
7609                           GDI_TEXT_FONT_ACTIVE, font_type_active,
7610                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7611                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7612                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7613                           GDI_DESIGN_WIDTH, gd->width,
7614                           GDI_EVENT_MASK, event_mask,
7615                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7616                           GDI_CALLBACK_ACTION, HandleCounterButtons,
7617                           GDI_END);
7618
7619         if (gi == NULL)
7620           Fail("cannot create gadget");
7621
7622         level_editor_gadget[id] = gi;
7623         right_gadget_border[id] =
7624           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7625
7626         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
7627       }
7628     }
7629   }
7630 }
7631
7632 static void CreateDrawingAreas(void)
7633 {
7634   int i;
7635
7636   // these values are not constant, but can change at runtime
7637   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
7638   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
7639
7640   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
7641   {
7642     struct GadgetInfo *gi;
7643     int id = drawingarea_info[i].gadget_id;
7644     int type_id = drawingarea_info[i].gadget_type_id;
7645     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
7646     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
7647     int area_xsize = drawingarea_info[i].area_xsize;
7648     int area_ysize = drawingarea_info[i].area_ysize;
7649     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
7650                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
7651     unsigned int event_mask =
7652       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
7653       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
7654
7655     if (type_id != i)
7656       Fail("'drawingarea_info' structure corrupted at index %d -- please fix", i);
7657
7658     // determine horizontal position to the right of specified gadget
7659     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
7660       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
7661            ED_DRAWINGAREA_TEXT_DISTANCE);
7662
7663     // determine horizontal offset for leading text
7664     if (drawingarea_info[i].text_left != NULL)
7665       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
7666
7667     gi = CreateGadget(GDI_CUSTOM_ID, id,
7668                       GDI_CUSTOM_TYPE_ID, type_id,
7669                       GDI_X, x,
7670                       GDI_Y, y,
7671                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
7672                       GDI_AREA_SIZE, area_xsize, area_ysize,
7673                       GDI_ITEM_SIZE, item_size, item_size,
7674                       GDI_EVENT_MASK, event_mask,
7675                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
7676                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
7677                       GDI_END);
7678
7679     if (gi == NULL)
7680       Fail("cannot create gadget");
7681
7682     level_editor_gadget[id] = gi;
7683     right_gadget_border[id] =
7684       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
7685   }
7686 }
7687
7688 static void CreateTextInputGadgets(void)
7689 {
7690   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
7691   int max_infotext_len = getMaxInfoTextLength();
7692   int i;
7693
7694   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
7695   {
7696     int gd_x1 = gd->src_x;
7697     int gd_y1 = gd->src_y;
7698     int gd_x2 = gd->src_x + gd->active_xoffset;
7699     int gd_y2 = gd->src_y + gd->active_yoffset;
7700     struct GadgetInfo *gi;
7701     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7702     char infotext[MAX_OUTPUT_LINESIZE + 1];
7703     int id = textinput_info[i].gadget_id;
7704     int type_id = textinput_info[i].gadget_type_id;
7705     int x, y;
7706
7707     if (type_id != i)
7708       Fail("'textinput_info' structure corrupted at index %d -- please fix", i);
7709
7710     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
7711     {
7712       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
7713       int border_size = gd->border_size;
7714       int font_nr = FONT_INPUT_1;
7715       int font_height = getFontHeight(font_nr);
7716       int xoffset = element_border + TILEX + element_border + 3 * border_size;
7717       int yoffset = element_border + (TILEY - font_height) / 2;
7718
7719       x = (editor.settings.element_name.x != -1 ?
7720            editor.settings.element_name.x :
7721            editor.settings.element_graphic.x + xoffset) - border_size;
7722       y = (editor.settings.element_name.y != -1 ?
7723            editor.settings.element_name.y :
7724            editor.settings.element_graphic.y + yoffset) - border_size;
7725     }
7726     else
7727     {
7728       x = ED_SETTINGS_X(textinput_info[i].x);
7729       y = ED_SETTINGS_Y(textinput_info[i].y);
7730     }
7731
7732     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
7733     infotext[max_infotext_len] = '\0';
7734
7735     gi = CreateGadget(GDI_CUSTOM_ID, id,
7736                       GDI_CUSTOM_TYPE_ID, type_id,
7737                       GDI_INFO_TEXT, infotext,
7738                       GDI_X, SX + x,
7739                       GDI_Y, SY + y,
7740                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
7741                       GDI_TEXT_VALUE, textinput_info[i].value,
7742                       GDI_TEXT_SIZE, textinput_info[i].size,
7743                       GDI_TEXT_FONT, FONT_INPUT_1,
7744                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7745                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7746                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7747                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7748                       GDI_DESIGN_WIDTH, gd->width,
7749                       GDI_EVENT_MASK, event_mask,
7750                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7751                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
7752                       GDI_END);
7753
7754     if (gi == NULL)
7755       Fail("cannot create gadget");
7756
7757     level_editor_gadget[id] = gi;
7758   }
7759 }
7760
7761 static void CreateTextAreaGadgets(void)
7762 {
7763   int max_infotext_len = getMaxInfoTextLength();
7764   int i;
7765
7766   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
7767   {
7768     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
7769     int gd_x1 = gd->src_x;
7770     int gd_y1 = gd->src_y;
7771     int gd_x2 = gd->src_x + gd->active_xoffset;
7772     int gd_y2 = gd->src_y + gd->active_yoffset;
7773     struct GadgetInfo *gi;
7774     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
7775     char infotext[MAX_OUTPUT_LINESIZE + 1];
7776     int id = textarea_info[i].gadget_id;
7777     int type_id = textarea_info[i].gadget_type_id;
7778     int area_xsize = textarea_info[i].xsize;
7779     int area_ysize = textarea_info[i].ysize;
7780
7781     if (type_id != i)
7782       Fail("'textarea_info' structure corrupted at index %d -- please fix", i);
7783
7784     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
7785     infotext[max_infotext_len] = '\0';
7786
7787     gi = CreateGadget(GDI_CUSTOM_ID, id,
7788                       GDI_CUSTOM_TYPE_ID, type_id,
7789                       GDI_INFO_TEXT, infotext,
7790                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
7791                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
7792                       GDI_TYPE, GD_TYPE_TEXT_AREA,
7793                       GDI_AREA_SIZE, area_xsize, area_ysize,
7794                       GDI_TEXT_FONT, FONT_INPUT_1,
7795                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7796                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7797                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7798                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7799                       GDI_DESIGN_WIDTH, gd->width,
7800                       GDI_EVENT_MASK, event_mask,
7801                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7802                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
7803                       GDI_END);
7804
7805     if (gi == NULL)
7806       Fail("cannot create gadget");
7807
7808     level_editor_gadget[id] = gi;
7809   }
7810 }
7811
7812 static void CreateSelectboxGadgets(void)
7813 {
7814   int max_infotext_len = getMaxInfoTextLength();
7815
7816   int i, j;
7817
7818   for (i = 0; i < ED_NUM_SELECTBOX; i++)
7819   {
7820     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
7821     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
7822     int gd_x1 = gd->src_x;
7823     int gd_y1 = gd->src_y;
7824     int gd_x2 = gd->src_x + gd->active_xoffset;
7825     int gd_y2 = gd->src_y + gd->active_yoffset;
7826     int selectbox_button_xsize = gd2->width;
7827     struct GadgetInfo *gi;
7828     char infotext[MAX_OUTPUT_LINESIZE + 1];
7829     int id = selectbox_info[i].gadget_id;
7830     int type_id = selectbox_info[i].gadget_type_id;
7831     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
7832     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
7833     unsigned int event_mask =
7834       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7835
7836     if (type_id != i)
7837       Fail("'selectbox_info' structure corrupted at index %d -- please fix", i);
7838
7839     if (selectbox_info[i].size == -1)   // dynamically determine size
7840     {
7841       // (we cannot use -1 for uninitialized values if we directly compare
7842       // with results from strlen(), because the '<' and '>' operation will
7843       // implicitely cast -1 to an unsigned integer value!)
7844       selectbox_info[i].size = 0;
7845
7846       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
7847         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
7848           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
7849
7850       selectbox_info[i].size++;         // add one character empty space
7851     }
7852
7853     // determine horizontal position to the right of specified gadget
7854     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
7855       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
7856            ED_GADGET_TEXT_DISTANCE);
7857
7858     // determine horizontal offset for leading text
7859     if (selectbox_info[i].text_left != NULL)
7860       x += getTextWidthForGadget(selectbox_info[i].text_left);
7861
7862     sprintf(infotext, "%s", selectbox_info[i].infotext);
7863     infotext[max_infotext_len] = '\0';
7864
7865     gi = CreateGadget(GDI_CUSTOM_ID, id,
7866                       GDI_CUSTOM_TYPE_ID, type_id,
7867                       GDI_INFO_TEXT, infotext,
7868                       GDI_X, x,
7869                       GDI_Y, y,
7870                       GDI_TYPE, GD_TYPE_SELECTBOX,
7871                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
7872                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
7873                       GDI_TEXT_SIZE, selectbox_info[i].size,
7874                       GDI_TEXT_FONT, FONT_INPUT_1,
7875                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7876                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
7877                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7878                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7879                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7880                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
7881                       GDI_DESIGN_WIDTH, gd->width,
7882                       GDI_EVENT_MASK, event_mask,
7883                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7884                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
7885                       GDI_END);
7886
7887     if (gi == NULL)
7888       Fail("cannot create gadget");
7889
7890     level_editor_gadget[id] = gi;
7891     right_gadget_border[id] =
7892       getRightGadgetBorder(gi, selectbox_info[i].text_right);
7893   }
7894 }
7895
7896 static void CreateTextbuttonGadgets(void)
7897 {
7898   int max_infotext_len = getMaxInfoTextLength();
7899   int i;
7900
7901   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
7902   {
7903     int id = textbutton_info[i].gadget_id;
7904     int type_id = textbutton_info[i].gadget_type_id;
7905     int is_tab_button =
7906       ((id >= GADGET_ID_LEVELCONFIG_LEVEL && id <= GADGET_ID_LEVELCONFIG_ENGINE) ||
7907        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
7908     int graphic =
7909       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
7910     int gadget_distance =
7911       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
7912     struct GraphicInfo *gd = &graphic_info[graphic];
7913     int gd_x1 = gd->src_x;
7914     int gd_y1 = gd->src_y;
7915     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7916     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7917     int gd_x1a = gd->src_x + gd->active_xoffset;
7918     int gd_y1a = gd->src_y + gd->active_yoffset;
7919     int border_xsize = gd->border_size + gd->draw_xoffset;
7920     int border_ysize = gd->border_size;
7921     struct GadgetInfo *gi;
7922     unsigned int event_mask = GD_EVENT_RELEASED;
7923     char infotext[MAX_OUTPUT_LINESIZE + 1];
7924     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
7925     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
7926
7927     if (type_id != i)
7928       Fail("'textbutton_info' structure corrupted at index %d -- please fix", i);
7929
7930     if (textbutton_info[i].size == -1)  // dynamically determine size
7931       textbutton_info[i].size = strlen(textbutton_info[i].text);
7932
7933     sprintf(infotext, "%s", textbutton_info[i].infotext);
7934     infotext[max_infotext_len] = '\0';
7935
7936     // determine horizontal position to the right of specified gadget
7937     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7938     {
7939       int gadget_id_align = textbutton_info[i].gadget_id_align;
7940
7941       x = right_gadget_border[gadget_id_align] + gadget_distance;
7942
7943       if (textbutton_info[i].y == -1)
7944         y = level_editor_gadget[gadget_id_align]->y;
7945     }
7946
7947     // determine horizontal offset for leading text
7948     if (textbutton_info[i].text_left != NULL)
7949       x += getTextWidthForGadget(textbutton_info[i].text_left);
7950
7951     gi = CreateGadget(GDI_CUSTOM_ID, id,
7952                       GDI_CUSTOM_TYPE_ID, type_id,
7953                       GDI_IMAGE_ID, graphic,
7954                       GDI_INFO_TEXT, infotext,
7955                       GDI_X, x,
7956                       GDI_Y, y,
7957                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
7958                       GDI_TEXT_VALUE, textbutton_info[i].text,
7959                       GDI_TEXT_SIZE, textbutton_info[i].size,
7960                       GDI_TEXT_FONT, FONT_INPUT_2,
7961                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
7962                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7963                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7964                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7965                       GDI_BORDER_SIZE, border_xsize, border_ysize,
7966                       GDI_DESIGN_WIDTH, gd->width,
7967                       GDI_DECORATION_SHIFTING, 1, 1,
7968                       GDI_EVENT_MASK, event_mask,
7969                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7970                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
7971                       GDI_END);
7972
7973     if (gi == NULL)
7974       Fail("cannot create gadget");
7975
7976     level_editor_gadget[id] = gi;
7977     right_gadget_border[id] =
7978       getRightGadgetBorder(gi, textbutton_info[i].text_right);
7979   }
7980 }
7981
7982 static void CreateGraphicbuttonGadgets(void)
7983 {
7984   struct GadgetInfo *gi;
7985   int i;
7986
7987   // create buttons for scrolling of drawing area and element list
7988   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
7989   {
7990     int id = graphicbutton_info[i].gadget_id;
7991     int type_id = graphicbutton_info[i].gadget_type_id;
7992     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
7993     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
7994     int graphic = graphicbutton_info[i].graphic;
7995     struct GraphicInfo *gd = &graphic_info[graphic];
7996     int gd_x1 = gd->src_x;
7997     int gd_y1 = gd->src_y;
7998     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7999     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8000     unsigned int event_mask = GD_EVENT_RELEASED;
8001
8002     if (type_id != i)
8003       Fail("'graphicbutton_info' structure corrupted at index %d -- please fix", i);
8004
8005     // determine horizontal position to the right of specified gadget
8006     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8007       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
8008            ED_GADGET_TEXT_DISTANCE);
8009
8010     // determine horizontal offset for leading text
8011     if (graphicbutton_info[i].text_left != NULL)
8012       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
8013
8014     gi = CreateGadget(GDI_CUSTOM_ID, id,
8015                       GDI_CUSTOM_TYPE_ID, type_id,
8016                       GDI_IMAGE_ID, graphic,
8017                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
8018                       GDI_X, x,
8019                       GDI_Y, y,
8020                       GDI_WIDTH, gd->width,
8021                       GDI_HEIGHT, gd->height,
8022                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
8023                       GDI_STATE, GD_BUTTON_UNPRESSED,
8024                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8025                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8026                       GDI_EVENT_MASK, event_mask,
8027                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8028                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
8029                       GDI_END);
8030
8031     if (gi == NULL)
8032       Fail("cannot create gadget");
8033
8034     level_editor_gadget[id] = gi;
8035     right_gadget_border[id] =
8036       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
8037   }
8038 }
8039
8040 static void CreateScrollbarGadgets(void)
8041 {
8042   int i;
8043
8044   // these values are not constant, but can change at runtime
8045   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
8046     SX + ED_SCROLL_HORIZONTAL_XPOS;
8047   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
8048     SY + ED_SCROLL_HORIZONTAL_YPOS;
8049   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
8050     ED_SCROLL_HORIZONTAL_XSIZE;
8051   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
8052     ED_SCROLL_HORIZONTAL_YSIZE;
8053   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
8054   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
8055   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
8056   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
8057
8058   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
8059     SX + ED_SCROLL_VERTICAL_XPOS;
8060   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
8061     SY + ED_SCROLL_VERTICAL_YPOS;
8062   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
8063     ED_SCROLL_VERTICAL_XSIZE;
8064   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
8065     ED_SCROLL_VERTICAL_YSIZE;
8066   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
8067   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
8068   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
8069   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
8070
8071   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
8072     PX + ED_SCROLL2_VERTICAL_XPOS;
8073   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
8074     PY + ED_SCROLL2_VERTICAL_YPOS;
8075   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
8076     ED_SCROLL2_VERTICAL_XSIZE;
8077   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
8078     ED_SCROLL2_VERTICAL_YSIZE;
8079   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
8080   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
8081   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
8082   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
8083
8084   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
8085   {
8086     int id = scrollbar_info[i].gadget_id;
8087     int type_id = scrollbar_info[i].gadget_type_id;
8088     int graphic = scrollbar_info[i].graphic;
8089     struct GraphicInfo *gd = &graphic_info[graphic];
8090     int gd_x1 = gd->src_x;
8091     int gd_y1 = gd->src_y;
8092     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8093     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8094     struct GadgetInfo *gi;
8095     int items_max, items_visible, item_position;
8096     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
8097
8098     if (type_id != i)
8099       Fail("'scrollbar_info' structure corrupted at index %d -- please fix", i);
8100
8101     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
8102     {
8103       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
8104       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
8105       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
8106     }
8107     else        // drawing area scrollbars
8108     {
8109       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
8110       {
8111         items_max = MAX(lev_fieldx + 2, ed_fieldx);
8112         items_visible = ed_fieldx;
8113         item_position = 0;
8114       }
8115       else
8116       {
8117         items_max = MAX(lev_fieldy + 2, ed_fieldy);
8118         items_visible = ed_fieldy;
8119         item_position = 0;
8120       }
8121     }
8122
8123     gi = CreateGadget(GDI_CUSTOM_ID, id,
8124                       GDI_CUSTOM_TYPE_ID, type_id,
8125                       GDI_IMAGE_ID, graphic,
8126                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
8127                       GDI_X, scrollbar_pos[i].x,
8128                       GDI_Y, scrollbar_pos[i].y,
8129                       GDI_WIDTH, scrollbar_pos[i].width,
8130                       GDI_HEIGHT, scrollbar_pos[i].height,
8131                       GDI_TYPE, scrollbar_info[i].type,
8132                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
8133                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8134                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
8135                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
8136                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
8137                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
8138                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
8139                       GDI_STATE, GD_BUTTON_UNPRESSED,
8140                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8141                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8142                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8143                       GDI_EVENT_MASK, event_mask,
8144                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8145                       GDI_CALLBACK_ACTION, HandleControlButtons,
8146                       GDI_END);
8147
8148     if (gi == NULL)
8149       Fail("cannot create gadget");
8150
8151     level_editor_gadget[id] = gi;
8152   }
8153 }
8154
8155 static void CreateCheckbuttonGadgets(void)
8156 {
8157   struct GadgetInfo *gi;
8158   int i;
8159
8160   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
8161   {
8162     int id = checkbutton_info[i].gadget_id;
8163     int type_id = checkbutton_info[i].gadget_type_id;
8164     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
8165                    IMG_EDITOR_CHECKBOX);
8166     struct GraphicInfo *gd = &graphic_info[graphic];
8167     int gd_x1 = gd->src_x;
8168     int gd_y1 = gd->src_y;
8169     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8170     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8171     int gd_x1a = gd->src_x + gd->active_xoffset;
8172     int gd_y1a = gd->src_y + gd->active_yoffset;
8173     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8174     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8175     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
8176     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
8177     unsigned int event_mask = GD_EVENT_PRESSED;
8178
8179     if (type_id != i)
8180       Fail("'checkbutton_info' structure corrupted at index %d -- please fix", i);
8181
8182     // determine horizontal position to the right of specified gadget
8183     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8184       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
8185            ED_GADGET_TEXT_DISTANCE);
8186
8187     // determine horizontal offset for leading text
8188     if (checkbutton_info[i].text_left != NULL)
8189       x += getTextWidthForGadget(checkbutton_info[i].text_left);
8190
8191     gi = CreateGadget(GDI_CUSTOM_ID, id,
8192                       GDI_CUSTOM_TYPE_ID, type_id,
8193                       GDI_IMAGE_ID, graphic,
8194                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
8195                       GDI_X, x,
8196                       GDI_Y, y,
8197                       GDI_WIDTH, gd->width,
8198                       GDI_HEIGHT, gd->height,
8199                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
8200                       GDI_CHECKED, *checkbutton_info[i].value,
8201                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8202                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8203                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8204                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8205                       GDI_EVENT_MASK, event_mask,
8206                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8207                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
8208                       GDI_END);
8209
8210     if (gi == NULL)
8211       Fail("cannot create gadget");
8212
8213     level_editor_gadget[id] = gi;
8214     right_gadget_border[id] =
8215       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
8216   }
8217 }
8218
8219 static void CreateRadiobuttonGadgets(void)
8220 {
8221   int graphic = IMG_EDITOR_RADIOBUTTON;
8222   struct GraphicInfo *gd = &graphic_info[graphic];
8223   int gd_x1 = gd->src_x;
8224   int gd_y1 = gd->src_y;
8225   int gd_x2 = gd->src_x + gd->pressed_xoffset;
8226   int gd_y2 = gd->src_y + gd->pressed_yoffset;
8227   int gd_x1a = gd->src_x + gd->active_xoffset;
8228   int gd_y1a = gd->src_y + gd->active_yoffset;
8229   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8230   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8231   struct GadgetInfo *gi;
8232   int i;
8233
8234   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
8235   {
8236     int id = radiobutton_info[i].gadget_id;
8237     int type_id = radiobutton_info[i].gadget_type_id;
8238     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
8239     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
8240     unsigned int event_mask = GD_EVENT_PRESSED;
8241
8242     if (type_id != i)
8243       Fail("'radiobutton_info' structure corrupted at index %d -- please fix", i);
8244
8245     int checked =
8246       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
8247
8248     // determine horizontal position to the right of specified gadget
8249     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
8250       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
8251            ED_GADGET_TEXT_DISTANCE);
8252
8253     // determine horizontal offset for leading text
8254     if (radiobutton_info[i].text_left != NULL)
8255       x += getTextWidthForGadget(radiobutton_info[i].text_left);
8256
8257     gi = CreateGadget(GDI_CUSTOM_ID, id,
8258                       GDI_CUSTOM_TYPE_ID, type_id,
8259                       GDI_IMAGE_ID, graphic,
8260                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
8261                       GDI_X, x,
8262                       GDI_Y, y,
8263                       GDI_WIDTH, gd->width,
8264                       GDI_HEIGHT, gd->height,
8265                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
8266                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
8267                       GDI_CHECKED, checked,
8268                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8269                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8270                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8271                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8272                       GDI_EVENT_MASK, event_mask,
8273                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8274                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
8275                       GDI_END);
8276
8277     if (gi == NULL)
8278       Fail("cannot create gadget");
8279
8280     level_editor_gadget[id] = gi;
8281     right_gadget_border[id] =
8282       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
8283   }
8284 }
8285
8286 void CreateLevelEditorGadgets(void)
8287 {
8288   // force EDITOR font inside level editor
8289   SetFontStatus(GAME_MODE_EDITOR);
8290
8291   // these values are not constant, but can change at runtime
8292   ed_fieldx = MAX_ED_FIELDX - 1;
8293   ed_fieldy = MAX_ED_FIELDY - 1;
8294
8295   num_editor_gadgets = NUM_EDITOR_GADGETS;
8296
8297   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
8298
8299   level_editor_gadget =
8300     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
8301   right_gadget_border =
8302     checked_calloc(num_editor_gadgets * sizeof(int));
8303
8304   // set number of empty (padding) element buttons to maximum number of buttons
8305   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
8306
8307   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
8308   editor_el_empty_ptr = editor_el_empty;
8309
8310   use_permanent_palette = !editor.palette.show_as_separate_screen;
8311
8312   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
8313
8314   ReinitializeElementList();
8315
8316   CreateControlButtons();
8317   CreateScrollbarGadgets();
8318
8319   // order of function calls is important because of cross-references
8320   CreateCheckbuttonGadgets();
8321   CreateCounterButtons();
8322   CreateRadiobuttonGadgets();
8323   CreateTextInputGadgets();
8324   CreateTextAreaGadgets();
8325   CreateSelectboxGadgets();
8326   CreateGraphicbuttonGadgets();
8327   CreateTextbuttonGadgets();
8328   CreateDrawingAreas();
8329
8330   ResetFontStatus();
8331 }
8332
8333 void FreeLevelEditorGadgets(void)
8334 {
8335   int i;
8336
8337   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
8338
8339   for (i = 0; i < num_editor_gadgets; i++)
8340   {
8341     FreeGadget(level_editor_gadget[i]);
8342
8343     level_editor_gadget[i] = NULL;
8344   }
8345
8346   checked_free(level_editor_gadget);
8347   checked_free(right_gadget_border);
8348
8349   checked_free(editor_el_empty);
8350 }
8351
8352 static void MapCounterButtons(int id)
8353 {
8354   int font_nr = FONT_TEXT_1;
8355   int font_height = getFontHeight(font_nr);
8356   int gadget_id_down = counterbutton_info[id].gadget_id_down;
8357   int gadget_id_text = counterbutton_info[id].gadget_id_text;
8358   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
8359   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
8360   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
8361   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
8362   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
8363   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8364   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8365   int yoffset = (gi_down->height - font_height) / 2;
8366   int x_left = gi_down->x - xoffset_left;
8367   int x_right;  // set after gadget position was modified
8368   int y_above = gi_down->y - yoffset_above;
8369   int x = gi_down->x;
8370   int y;        // set after gadget position was modified
8371
8372   // counter limits must be changed first to prevent value truncation
8373   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
8374                             counterbutton_info[id].max_value);
8375
8376   // right text position might have changed after setting position above
8377   x_right = gi_up->x + gi_up->width + xoffset_right;
8378
8379   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
8380
8381   // set position for counter gadgets with dynamically determined position
8382   if (id != ED_COUNTER_ID_SELECT_LEVEL)
8383   {
8384     ModifyGadget(gi_down, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8385     ModifyGadget(gi_text, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8386     ModifyGadget(gi_up,   GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8387   }
8388
8389   // vertical position might have changed after setting position above
8390   y = gi_up->y + yoffset;
8391
8392   if (counterbutton_info[id].text_above)
8393     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
8394
8395   if (counterbutton_info[id].text_left)
8396     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
8397
8398   if (counterbutton_info[id].text_right)
8399     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
8400
8401   MapGadget(gi_down);
8402   MapGadget(gi_text);
8403   MapGadget(gi_up);
8404 }
8405
8406 static void MapControlButtons(void)
8407 {
8408   int counter_id;
8409   int i;
8410
8411   // map toolbox buttons (excluding special CE toolbox buttons)
8412   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
8413     MapGadget(level_editor_gadget[i]);
8414
8415   // map toolbox buttons (element properties buttons)
8416   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
8417     MapGadget(level_editor_gadget[i]);
8418
8419   if (use_permanent_palette)
8420   {
8421     // map buttons to select elements
8422     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
8423       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
8424     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
8425     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
8426     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
8427   }
8428
8429   // map buttons to select level
8430   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
8431   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
8432   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
8433   MapCounterButtons(counter_id);
8434 }
8435
8436 static void MapDrawingArea(int id)
8437 {
8438   int font_nr = FONT_TEXT_1;
8439   int font_height = getFontHeight(font_nr);
8440   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
8441   int area_xsize = gi->drawing.area_xsize;
8442   int area_ysize = gi->drawing.area_ysize;
8443   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8444   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
8445   int x_left  = gi->x - xoffset_left - ED_DRAWINGAREA_BORDER_SIZE;
8446   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
8447   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
8448   int x_below = gi->x + (gi->width - xoffset_below) / 2;
8449   int y_side  = gi->y + (gi->height - font_height) / 2;
8450   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
8451   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
8452
8453   if (drawingarea_info[id].text_left)
8454     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
8455
8456   if (drawingarea_info[id].text_right)
8457     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
8458
8459   if (drawingarea_info[id].text_above)
8460     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
8461
8462   if (drawingarea_info[id].text_below)
8463     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
8464
8465   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
8466   {
8467     DrawElementBorder(gi->x, gi->y,
8468                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
8469                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
8470
8471     DrawDrawingArea(id);
8472   }
8473
8474   MapGadget(gi);
8475 }
8476
8477 static void MapTextInputGadget(int id)
8478 {
8479   int font_nr = FONT_TEXT_1;
8480   int font_height = getFontHeight(font_nr);
8481   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
8482   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8483   int x_above = ED_SETTINGS_X(textinput_info[id].x);
8484   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
8485
8486   if (textinput_info[id].text_above)
8487     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
8488
8489   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
8490
8491   MapGadget(gi);
8492 }
8493
8494 static void MapTextAreaGadget(int id)
8495 {
8496   int font_nr = FONT_TEXT_1;
8497   int font_height = getFontHeight(font_nr);
8498   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
8499   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8500   int x_above = ED_SETTINGS_X(textarea_info[id].x);
8501   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
8502   char *text_above = textarea_info[id].text_above;
8503
8504   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
8505     text_above = textarea_info[id].text_above_cropped;
8506
8507   if (text_above)
8508     DrawTextS(x_above, y_above, font_nr, text_above);
8509
8510   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
8511
8512   MapGadget(gi);
8513 }
8514
8515 static void MapSelectboxGadget(int id)
8516 {
8517   int font_nr = FONT_TEXT_1;
8518   int font_height = getFontHeight(font_nr);
8519   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
8520   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
8521   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8522   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8523   int yoffset = (gi->height - font_height) / 2;
8524   int x_left = gi->x - xoffset_left;
8525   int x_right = gi->x + gi->width + xoffset_right;
8526   int y_above = gi->y - yoffset_above;
8527   int x = gi->x;
8528   int y = gi->y + yoffset;
8529
8530   if (selectbox_info[id].text_above)
8531     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
8532
8533   if (selectbox_info[id].text_left)
8534     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
8535
8536   if (selectbox_info[id].text_right)
8537     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
8538
8539   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
8540
8541   MapGadget(gi);
8542 }
8543
8544 static void MapTextbuttonGadget(int id)
8545 {
8546   int font_nr = FONT_TEXT_1;
8547   int font_height = getFontHeight(font_nr);
8548   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
8549   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
8550   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8551   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8552   int yoffset = (gi->height - font_height) / 2;
8553   int x_left = gi->x - xoffset_left;
8554   int x_right = gi->x + gi->width + xoffset_right;
8555   int y_above = gi->y - yoffset_above;
8556   int x = gi->x;
8557   int y = gi->y + yoffset;
8558
8559   // only show button to delete change pages when more than minimum pages
8560   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
8561       custom_element.num_change_pages == MIN_CHANGE_PAGES)
8562     return;
8563
8564   if (textbutton_info[id].text_above)
8565     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
8566
8567   if (textbutton_info[id].text_left)
8568     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
8569
8570   if (textbutton_info[id].text_right)
8571     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
8572
8573   MapGadget(gi);
8574 }
8575
8576 static void MapGraphicbuttonGadget(int id)
8577 {
8578   int font_nr = FONT_TEXT_1;
8579   int font_height = getFontHeight(font_nr);
8580   struct GadgetInfo *gi = level_editor_gadget[graphicbutton_info[id].gadget_id];
8581   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
8582   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8583   int yoffset = (gi->height - font_height) / 2;
8584   int x_left = gi->x - xoffset_left;
8585   int x_right = gi->x + gi->width + xoffset_right;
8586   int y = gi->y + yoffset;
8587
8588   if (graphicbutton_info[id].text_left)
8589     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
8590
8591   if (graphicbutton_info[id].text_right)
8592     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
8593
8594   MapGadget(gi);
8595 }
8596
8597 static void MapRadiobuttonGadget(int id)
8598 {
8599   int font_nr = FONT_TEXT_1;
8600   int font_height = getFontHeight(font_nr);
8601   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
8602   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8603   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8604   int yoffset = (gi->height - font_height) / 2;
8605   int x_left = gi->x - xoffset_left;
8606   int x_right = gi->x + gi->width + xoffset_right;
8607   int y = gi->y + yoffset;
8608   boolean checked =
8609     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
8610
8611   if (radiobutton_info[id].text_left)
8612     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
8613
8614   if (radiobutton_info[id].text_right)
8615     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
8616
8617   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
8618
8619   MapGadget(gi);
8620 }
8621
8622 static void MapCheckbuttonGadget(int id)
8623 {
8624   int font_nr = FONT_TEXT_1;
8625   int font_height = getFontHeight(font_nr);
8626   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
8627   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8628   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8629   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8630   int yoffset = (gi->height - font_height) / 2;
8631   int y_above = gi->y - yoffset_above;
8632   int x = gi->x;
8633   int x_left, x_right, y;       // set after gadget position was modified
8634
8635   // set position for gadgets with dynamically determined position
8636   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
8637     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x), GDI_END);
8638   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
8639
8640   x_left = gi->x - xoffset_left;
8641   x_right = gi->x + gi->width + xoffset_right;
8642   y = gi->y + yoffset;
8643
8644   if (checkbutton_info[id].text_above)
8645     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
8646
8647   if (checkbutton_info[id].text_left)
8648     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
8649
8650   if (checkbutton_info[id].text_right)
8651     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
8652
8653   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
8654
8655   MapGadget(gi);
8656 }
8657
8658 static void MapMainDrawingArea(void)
8659 {
8660   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
8661   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
8662   int i;
8663
8664   if (suppressBorderElement())
8665   {
8666     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
8667     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
8668   }
8669
8670   for (i = ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
8671   {
8672     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
8673           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
8674          no_horizontal_scrollbar) ||
8675         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
8676           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
8677          no_vertical_scrollbar))
8678       continue;
8679
8680     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
8681   }
8682
8683   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
8684   {
8685     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
8686         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
8687       continue;
8688
8689     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
8690   }
8691
8692   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
8693 }
8694
8695 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
8696 {
8697   int i;
8698
8699   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
8700   {
8701     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
8702         i == GADGET_ID_CUSTOM_COPY_TO ||
8703         i == GADGET_ID_CUSTOM_EXCHANGE ||
8704         i == GADGET_ID_CUSTOM_COPY ||
8705         i == GADGET_ID_CUSTOM_PASTE)
8706     {
8707       if (map)
8708         MapGadget(level_editor_gadget[i]);
8709       else
8710         UnmapGadget(level_editor_gadget[i]);
8711     }
8712   }
8713 }
8714
8715 static void MapLevelEditorToolboxCustomGadgets(void)
8716 {
8717   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
8718 }
8719
8720 static void MapLevelEditorToolboxCustomGadgetsIfNeeded(void)
8721 {
8722   if (IS_CUSTOM_ELEMENT(properties_element) ||
8723       IS_GROUP_ELEMENT(properties_element) ||
8724       IS_EMPTY_ELEMENT(properties_element))
8725     MapLevelEditorToolboxCustomGadgets();
8726 }
8727
8728 static void UnmapLevelEditorToolboxCustomGadgets(void)
8729 {
8730   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
8731 }
8732
8733 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
8734 {
8735   int i;
8736
8737   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
8738   {
8739     if (i != GADGET_ID_SINGLE_ITEMS &&
8740         i != GADGET_ID_PICK_ELEMENT)
8741     {
8742       struct GadgetInfo *gi = level_editor_gadget[i];
8743
8744       if (map)
8745       {
8746         MapGadget(gi);
8747       }
8748       else
8749       {
8750         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
8751         struct GraphicInfo *gd = &graphic_info[graphic];
8752
8753         UnmapGadget(gi);
8754
8755         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
8756                    gi->width, gi->height, gi->x, gi->y);
8757
8758         redraw_mask |= REDRAW_DOOR_3;
8759       }
8760     }
8761   }
8762 }
8763
8764 static void MapLevelEditorToolboxDrawingGadgets(void)
8765 {
8766   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
8767 }
8768
8769 static void UnmapLevelEditorToolboxDrawingGadgets(void)
8770 {
8771   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
8772 }
8773
8774 static void UnmapDrawingArea(int id)
8775 {
8776   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
8777 }
8778
8779 static void UnmapLevelEditorFieldGadgets(void)
8780 {
8781   int i;
8782
8783   for (i = 0; i < num_editor_gadgets; i++)
8784     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
8785                           level_editor_gadget[i]->y))
8786       UnmapGadget(level_editor_gadget[i]);
8787 }
8788
8789 void UnmapLevelEditorGadgets(void)
8790 {
8791   int i;
8792
8793   for (i = 0; i < num_editor_gadgets; i++)
8794     UnmapGadget(level_editor_gadget[i]);
8795 }
8796
8797 static void ResetUndoBuffer(void)
8798 {
8799   undo_buffer_position = -1;
8800   undo_buffer_steps = -1;
8801   redo_buffer_steps = 0;
8802
8803   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
8804
8805   level.changed = FALSE;
8806 }
8807
8808 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
8809 {
8810   if (remap_toolbox_gadgets)
8811   {
8812     ModifyEditorElementList();
8813     RedrawDrawingElements();
8814   }
8815
8816   if (edit_mode == ED_MODE_LEVELCONFIG)
8817     DrawLevelConfigWindow();
8818   else if (edit_mode == ED_MODE_PROPERTIES)
8819     DrawPropertiesWindow();
8820   else if (edit_mode == ED_MODE_PALETTE)
8821     DrawPaletteWindow();
8822   else  // edit_mode == ED_MODE_DRAWING
8823     DrawDrawingWindowExt(remap_toolbox_gadgets);
8824 }
8825
8826 static void DrawEditModeWindow(void)
8827 {
8828   DrawEditModeWindowExt(TRUE);
8829 }
8830
8831 static void DrawEditModeWindow_PlayfieldOnly(void)
8832 {
8833   DrawEditModeWindowExt(FALSE);
8834 }
8835
8836 static void ChangeEditModeWindow(int new_edit_mode)
8837 {
8838   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
8839
8840   DrawEditModeWindow();
8841 }
8842
8843 static boolean LevelChanged(void)
8844 {
8845   boolean field_changed = FALSE;
8846   int x, y;
8847
8848   for (y = 0; y < lev_fieldy; y++)
8849     for (x = 0; x < lev_fieldx; x++)
8850       if (Tile[x][y] != level.field[x][y])
8851         field_changed = TRUE;
8852
8853   return (level.changed || field_changed);
8854 }
8855
8856 static boolean PrepareSavingIntoPersonalLevelSet(void)
8857 {
8858   static LevelDirTree *last_copied_leveldir = NULL;
8859   static LevelDirTree *last_written_leveldir = NULL;
8860   static int last_copied_level_nr = -1;
8861   static int last_written_level_nr = -1;
8862   LevelDirTree *leveldir_former = leveldir_current;
8863   int level_nr_former = level_nr;
8864   int new_level_nr;
8865
8866   // remember last mod/save so that for current session, we write
8867   // back to the same personal copy, asking only about overwrite.
8868   if (leveldir_current == last_copied_leveldir &&
8869       level_nr == last_copied_level_nr)
8870   {
8871     // "cd" to personal level set dir (as used when writing last copy)
8872     leveldir_current = last_written_leveldir;
8873     level_nr = last_written_level_nr;
8874
8875     return TRUE;
8876   }
8877
8878   if (!Request("This level is read-only! "
8879                "Save into personal level set?", REQ_ASK))
8880     return FALSE;
8881
8882   // "cd" to personal level set dir (for writing copy the first time)
8883   leveldir_current =
8884     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
8885
8886   // this may happen if "setup.internal.create_user_levelset" is FALSE
8887   // or if file "levelinfo.conf" is missing in personal user level set
8888   if (leveldir_current == NULL)
8889   {
8890     Request("Cannot find personal level set?!", REQ_CONFIRM);
8891
8892     leveldir_current = leveldir_former;
8893
8894     return FALSE;
8895   }
8896
8897   // find unused level number
8898   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
8899   {
8900     static char *level_filename = NULL;
8901
8902     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
8903
8904     if (!fileExists(level_filename))
8905       break;
8906   }
8907
8908   last_copied_leveldir = leveldir_former;
8909   last_copied_level_nr = level_nr_former;
8910
8911   last_written_leveldir = leveldir_current;
8912   last_written_level_nr = level_nr = new_level_nr;
8913
8914   return TRUE;
8915 }
8916
8917 static void ModifyLevelConfigForSavingIntoPersonalLevelSet(char *former_name)
8918 {
8919   static char *filename_levelinfo = NULL, *mod_name = NULL;
8920   FILE *file;
8921
8922   // annotate this copy-and-mod in personal levelinfo.conf
8923   setString(&filename_levelinfo,
8924             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
8925
8926   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
8927   {
8928     fprintf(file, "\n");
8929     fprintf(file, "# level %d was modified from:\n", level_nr);
8930     fprintf(file, "# - previous level set name:    %s\n",
8931             former_name);
8932     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
8933             level.file_info.nr, level.name);
8934     fprintf(file, "# - previous author:            %s\n",
8935             level.author);
8936     fprintf(file, "# - previous save date:         ");
8937
8938     if (level.creation_date.src == DATE_SRC_LEVELFILE)
8939     {
8940       fprintf(file, "%04d-%02d-%02d\n",
8941               level.creation_date.year,
8942               level.creation_date.month,
8943               level.creation_date.day);
8944     }
8945     else
8946     {
8947       fprintf(file, "not recorded\n");
8948     }
8949
8950     fclose(file);
8951   }
8952
8953   if (level_nr > leveldir_current->last_level)
8954     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
8955
8956   // else: allow the save even if annotation failed
8957
8958   // now... spray graffiti on the old level vital statistics
8959   // user can change these; just trying to set a good baseline
8960
8961   // don't truncate names for fear of making offensive or silly:
8962   // long-named original author only recorded in levelinfo.conf.
8963   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
8964   if (!strEqual(level.author, leveldir_current->author))
8965   {
8966     setString(&mod_name, getStringCat3(leveldir_current->author,
8967                                        " after ", level.author));
8968
8969     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8970       setString(&mod_name,
8971                 getStringCat2(leveldir_current->author, " (ed.)"));
8972
8973     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8974       setString(&mod_name, leveldir_current->author);
8975
8976     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
8977
8978     // less worried about truncation here
8979     setString(&mod_name, getStringCat2("Mod: ", level.name));
8980     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
8981   }
8982 }
8983
8984 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
8985                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
8986 {
8987   int x, y;
8988
8989   for (x = 0; x < lev_fieldx; x++)
8990     for (y = 0; y < lev_fieldy; y++)
8991       dst[x][y] = src[x][y];
8992 }
8993
8994 static int setSelectboxValue(int selectbox_id, int new_value)
8995 {
8996   int new_index_value = 0;
8997   int i;
8998
8999   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
9000     if (selectbox_info[selectbox_id].options[i].value == new_value)
9001       new_index_value = i;
9002
9003   *selectbox_info[selectbox_id].value =
9004     selectbox_info[selectbox_id].options[new_index_value].value;
9005
9006   return new_index_value;
9007 }
9008
9009 static void setSelectboxSpecialActionVariablesIfNeeded(void)
9010 {
9011   int i;
9012
9013   // change action mode and arg variables according to action type variable
9014   for (i = 0; action_arg_options[i].value != -1; i++)
9015   {
9016     if (action_arg_options[i].value == custom_element_change.action_type)
9017     {
9018       int mode = action_arg_options[i].mode;
9019
9020       // only change if corresponding selectbox has changed
9021       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
9022           action_arg_modes[mode])
9023         custom_element_change.action_mode = -1;
9024
9025       // only change if corresponding selectbox has changed
9026       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
9027           action_arg_options[i].options)
9028         custom_element_change.action_arg = -1;
9029
9030       break;
9031     }
9032   }
9033 }
9034
9035 static void setSelectboxSpecialActionOptions(void)
9036 {
9037   int i;
9038
9039   // change action mode and arg selectbox according to action type selectbox
9040   for (i = 0; action_arg_options[i].value != -1; i++)
9041   {
9042     if (action_arg_options[i].value == custom_element_change.action_type)
9043     {
9044       int mode = action_arg_options[i].mode;
9045
9046       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
9047                                    action_arg_modes[mode]);
9048       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
9049                                  custom_element_change.action_mode);
9050
9051       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
9052                                    action_arg_options[i].options);
9053       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
9054                                  custom_element_change.action_arg);
9055       break;
9056     }
9057   }
9058 }
9059
9060 static void copy_custom_element_settings(int element_from, int element_to)
9061 {
9062   struct ElementInfo *ei_from = &element_info[element_from];
9063   struct ElementInfo *ei_to = &element_info[element_to];
9064
9065   copyElementInfo(ei_from, ei_to);
9066 }
9067
9068 static void replace_custom_element_in_settings(int element_from,
9069                                                int element_to)
9070 {
9071   int i, j, x, y;
9072
9073   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9074   {
9075     struct ElementInfo *ei = &element_info[i];
9076
9077     for (y = 0; y < 3; y++)
9078       for (x = 0; x < 3; x++)
9079         if (ei->content.e[x][y] == element_from)
9080           ei->content.e[x][y] = element_to;
9081
9082     for (j = 0; j < ei->num_change_pages; j++)
9083     {
9084       struct ElementChangeInfo *change = &ei->change_page[j];
9085
9086       if (change->target_element == element_from)
9087         change->target_element = element_to;
9088
9089       if (change->initial_trigger_element == element_from)
9090         change->initial_trigger_element = element_to;
9091
9092       if (change->action_element == element_from)
9093         change->action_element = element_to;
9094
9095       for (y = 0; y < 3; y++)
9096         for (x = 0; x < 3; x++)
9097           if (change->target_content.e[x][y] == element_from)
9098             change->target_content.e[x][y] = element_to;
9099     }
9100
9101     if (ei->group != NULL)                              // group or internal
9102       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
9103         if (ei->group->element[j] == element_from)
9104           ei->group->element[j] = element_to;
9105   }
9106 }
9107
9108 static void replace_custom_element_in_playfield(int element_from,
9109                                                 int element_to)
9110 {
9111   int x, y;
9112
9113   for (x = 0; x < lev_fieldx; x++)
9114     for (y = 0; y < lev_fieldy; y++)
9115       if (Tile[x][y] == element_from)
9116         Tile[x][y] = element_to;
9117 }
9118
9119 static boolean CopyCustomElement(int element_old, int element_new,
9120                                  int copy_mode)
9121 {
9122   int copy_mode_orig = copy_mode;
9123
9124   if (copy_mode == GADGET_ID_CUSTOM_COPY)
9125   {
9126     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
9127                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9128     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9129   }
9130   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
9131   {
9132     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
9133                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9134     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9135
9136     level.changed = TRUE;
9137   }
9138   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
9139   {
9140     Request("Please choose custom element!", REQ_CONFIRM);
9141
9142     return FALSE;
9143   }
9144   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
9145   {
9146     Request("Please choose group element!", REQ_CONFIRM);
9147
9148     return FALSE;
9149   }
9150   else if (IS_EMPTY_ELEMENT(element_old) && !IS_EMPTY_ELEMENT(element_new))
9151   {
9152     Request("Please choose empty element!", REQ_CONFIRM);
9153
9154     return FALSE;
9155   }
9156   else
9157   {
9158     level.changed = TRUE;
9159   }
9160
9161   // when modifying custom/group element, ask for copying level template
9162   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
9163   {
9164     if (!AskToCopyAndModifyLevelTemplate())
9165       return FALSE;
9166   }
9167
9168   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
9169   {
9170     copy_custom_element_settings(element_new, element_old);
9171   }
9172   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
9173   {
9174     copy_custom_element_settings(element_old, element_new);
9175   }
9176   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
9177   {
9178     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
9179     copy_custom_element_settings(element_new, element_old);
9180     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
9181
9182     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
9183     replace_custom_element_in_settings(element_new, element_old);
9184     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
9185
9186     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
9187     replace_custom_element_in_playfield(element_new, element_old);
9188     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
9189   }
9190
9191   UpdateCustomElementGraphicGadgets();
9192   DrawPropertiesWindow();
9193
9194   return TRUE;
9195 }
9196
9197 static void CopyCustomElementPropertiesToEditor(int element)
9198 {
9199   int i;
9200   int current_change_page = element_info[element].current_change_page;
9201
9202   // dynamically (re)build selectbox for selecting change page
9203   for (i = 0; i < element_info[element].num_change_pages; i++)
9204   {
9205     sprintf(options_change_page_strings[i], "%d", i + 1);
9206
9207     options_change_page[i].value = i;
9208     options_change_page[i].text = options_change_page_strings[i];
9209   }
9210
9211   options_change_page[i].value = -1;
9212   options_change_page[i].text = NULL;
9213
9214   // needed here to initialize combined element properties
9215   InitElementPropertiesEngine(level.game_version);
9216
9217   element_info[element].change =
9218     &element_info[element].change_page[current_change_page];
9219
9220   custom_element = element_info[element];
9221   custom_element_change = *element_info[element].change;
9222
9223   // needed to initially set selectbox options for special action options
9224   setSelectboxSpecialActionOptions();
9225
9226   // needed to initially set selectbox value variables to reliable defaults
9227   for (i = 0; i < ED_NUM_SELECTBOX; i++)
9228     setSelectboxValue(i, *selectbox_info[i].value);
9229
9230   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9231     custom_element_properties[i] = HAS_PROPERTY(element, i);
9232
9233   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9234     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
9235
9236   // ---------- element settings: configure (custom elements) -----------------
9237
9238   // set accessible layer selectbox help value
9239   custom_element.access_type =
9240     (IS_WALKABLE(element) ? EP_WALKABLE :
9241      IS_PASSABLE(element) ? EP_PASSABLE :
9242      custom_element.access_type);
9243   custom_element.access_layer =
9244     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
9245      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
9246      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
9247      custom_element.access_layer);
9248   custom_element.access_protected =
9249     (IS_PROTECTED(element) ? 1 : 0);
9250   custom_element_properties[EP_ACCESSIBLE] =
9251     (IS_ACCESSIBLE_OVER(element) ||
9252      IS_ACCESSIBLE_INSIDE(element) ||
9253      IS_ACCESSIBLE_UNDER(element));
9254
9255   // set walk-to-object action selectbox help value
9256   custom_element.walk_to_action =
9257     (IS_DIGGABLE(element) ? EP_DIGGABLE :
9258      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
9259      IS_DROPPABLE(element) ? EP_DROPPABLE :
9260      IS_THROWABLE(element) ? EP_THROWABLE :
9261      IS_PUSHABLE(element) ? EP_PUSHABLE :
9262      custom_element.walk_to_action);
9263   custom_element_properties[EP_WALK_TO_OBJECT] =
9264     (IS_DIGGABLE(element) ||
9265      IS_COLLECTIBLE_ONLY(element) ||
9266      IS_DROPPABLE(element) ||
9267      IS_THROWABLE(element) ||
9268      IS_PUSHABLE(element));
9269
9270   // set smash targets selectbox help value
9271   custom_element.smash_targets =
9272     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
9273      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
9274      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
9275      custom_element.smash_targets);
9276   custom_element_properties[EP_CAN_SMASH] =
9277     (CAN_SMASH_EVERYTHING(element) ||
9278      CAN_SMASH_ENEMIES(element) ||
9279      CAN_SMASH_PLAYER(element));
9280
9281   // set deadliness selectbox help value
9282   custom_element.deadliness =
9283     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
9284      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
9285      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
9286      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
9287      custom_element.deadliness);
9288   custom_element_properties[EP_DEADLY] =
9289     (DONT_TOUCH(element) ||
9290      DONT_GET_HIT_BY(element) ||
9291      DONT_COLLIDE_WITH(element) ||
9292      DONT_RUN_INTO(element));
9293
9294   // ---------- element settings: advanced (custom elements) ------------------
9295
9296   // set "change by direct action" selectbox help value
9297   custom_element_change.direct_action =
9298     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
9299      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
9300      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
9301      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
9302      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
9303      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
9304      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
9305      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
9306      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
9307      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
9308      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
9309      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
9310      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
9311      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
9312      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
9313      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
9314      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
9315      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
9316      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
9317      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
9318      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
9319      custom_element_change.direct_action);
9320
9321   // set "change by other element action" selectbox help value
9322   custom_element_change.other_action =
9323     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
9324      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
9325      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
9326      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
9327      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
9328      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
9329      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
9330      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
9331      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
9332      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
9333      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
9334      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
9335      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
9336      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
9337      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
9338      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
9339      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
9340      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
9341      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
9342      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
9343      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
9344      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
9345      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
9346      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
9347      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
9348      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
9349      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
9350      custom_element_change.other_action);
9351 }
9352
9353 static void CopyGroupElementPropertiesToEditor(int element)
9354 {
9355   group_element_info = *element_info[element].group;
9356   custom_element = element_info[element];       // needed for description
9357 }
9358
9359 static void CopyEmptyElementPropertiesToEditor(int element)
9360 {
9361   custom_element = element_info[element];
9362 }
9363
9364 static void CopyClassicElementPropertiesToEditor(int element)
9365 {
9366   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9367     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
9368       getMoveIntoAcidProperty(&level, element);
9369
9370   if (MAYBE_DONT_COLLIDE_WITH(element))
9371     custom_element_properties[EP_DONT_COLLIDE_WITH] =
9372       getDontCollideWithProperty(&level, element);
9373 }
9374
9375 static void CopyElementPropertiesToEditor(int element)
9376 {
9377   if (IS_CUSTOM_ELEMENT(element))
9378     CopyCustomElementPropertiesToEditor(element);
9379   else if (IS_GROUP_ELEMENT(element))
9380     CopyGroupElementPropertiesToEditor(element);
9381   else if (IS_EMPTY_ELEMENT(element))
9382     CopyEmptyElementPropertiesToEditor(element);
9383   else
9384     CopyClassicElementPropertiesToEditor(element);
9385 }
9386
9387 static boolean AskToCopyAndModifyLevelTemplate(void)
9388 {
9389   if (Request("Copy and modify settings from level template?", REQ_ASK))
9390   {
9391     level.use_custom_template = FALSE;
9392
9393     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
9394                  GDI_CHECKED, FALSE, GDI_END);
9395     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
9396                  GDI_CHECKED, FALSE, GDI_END);
9397
9398     return TRUE;
9399   }
9400   else
9401   {
9402     LoadLevelTemplate(-1);      // this resets all element modifications ...
9403
9404     DrawEditModeWindow();       // ... and copies them to 'custom_element'
9405
9406     return FALSE;
9407   }
9408 }
9409
9410 static void CopyCustomElementPropertiesToGame(int element)
9411 {
9412   int i;
9413   int access_type_and_layer;
9414
9415   // mark that this custom element has been modified
9416   custom_element.modified_settings = TRUE;
9417   level.changed = TRUE;
9418
9419   if (level.use_custom_template)
9420     AskToCopyAndModifyLevelTemplate();
9421
9422   element_info[element] = custom_element;
9423   *element_info[element].change = custom_element_change;
9424
9425   // ---------- element settings: configure (custom elements) -----------------
9426
9427   // set accessible property from checkbox and selectbox
9428   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
9429   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
9430   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
9431   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
9432   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
9433   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
9434   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
9435                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
9436                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
9437   custom_element_properties[access_type_and_layer] =
9438     custom_element_properties[EP_ACCESSIBLE];
9439   custom_element_properties[EP_PROTECTED] =
9440     (custom_element.access_protected != 0 &&
9441      custom_element_properties[EP_ACCESSIBLE]);
9442
9443   // set walk-to-object property from checkbox and selectbox
9444   custom_element_properties[EP_DIGGABLE] = FALSE;
9445   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
9446   custom_element_properties[EP_DROPPABLE] = FALSE;
9447   custom_element_properties[EP_THROWABLE] = FALSE;
9448   custom_element_properties[EP_PUSHABLE] = FALSE;
9449   custom_element_properties[custom_element.walk_to_action] =
9450     custom_element_properties[EP_WALK_TO_OBJECT];
9451
9452   // set smash property from checkbox and selectbox
9453   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
9454   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
9455   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
9456   custom_element_properties[custom_element.smash_targets] =
9457     custom_element_properties[EP_CAN_SMASH];
9458
9459   // set deadliness property from checkbox and selectbox
9460   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
9461   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
9462   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
9463   custom_element_properties[EP_DONT_TOUCH] = FALSE;
9464   custom_element_properties[custom_element.deadliness] =
9465     custom_element_properties[EP_DEADLY];
9466
9467   // ---------- element settings: advanced (custom elements) ------------------
9468
9469   // set player change event from checkbox and selectbox
9470   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
9471   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
9472   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
9473   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
9474   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
9475   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
9476   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
9477   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
9478   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
9479   custom_element_change_events[CE_SWITCHED] = FALSE;
9480   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
9481   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
9482   custom_element_change_events[CE_BLOCKED] = FALSE;
9483   custom_element_change_events[CE_IMPACT] = FALSE;
9484   custom_element_change_events[CE_SMASHED] = FALSE;
9485   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
9486   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
9487   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
9488   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
9489   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
9490   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
9491   custom_element_change_events[custom_element_change.direct_action] =
9492     custom_element_change_events[CE_BY_DIRECT_ACTION];
9493
9494   // set other element action change event from checkbox and selectbox
9495   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
9496   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
9497   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
9498   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
9499   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
9500   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
9501   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
9502   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
9503   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
9504   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
9505   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
9506   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
9507   custom_element_change_events[CE_TOUCHING_X] = FALSE;
9508   custom_element_change_events[CE_HITTING_X] = FALSE;
9509   custom_element_change_events[CE_DIGGING_X] = FALSE;
9510   custom_element_change_events[CE_HIT_BY_X] = FALSE;
9511   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
9512   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
9513   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
9514   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
9515   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
9516   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
9517   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
9518   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
9519   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
9520   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
9521   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
9522   custom_element_change_events[custom_element_change.other_action] =
9523     custom_element_change_events[CE_BY_OTHER_ACTION];
9524
9525   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9526     SET_PROPERTY(element, i, custom_element_properties[i]);
9527
9528   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9529     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
9530
9531   // copy change events also to special level editor variable
9532   custom_element = element_info[element];
9533   custom_element_change = *element_info[element].change;
9534
9535   // needed here to restore runtime value "element_info[element].gfx_element"
9536   InitElementPropertiesGfxElement();
9537 }
9538
9539 static void CopyGroupElementPropertiesToGame(int element)
9540 {
9541   // mark that this group element has been modified
9542   custom_element.modified_settings = TRUE;
9543   level.changed = TRUE;
9544
9545   if (level.use_custom_template)
9546     AskToCopyAndModifyLevelTemplate();
9547
9548   element_info[element] = custom_element;
9549   *element_info[element].group = group_element_info;
9550
9551   // needed here to restore runtime value "element_info[element].gfx_element"
9552   InitElementPropertiesGfxElement();
9553 }
9554
9555 static void CopyEmptyElementPropertiesToGame(int element)
9556 {
9557   // mark that this empty element has been modified
9558   custom_element.modified_settings = TRUE;
9559   level.changed = TRUE;
9560
9561   if (level.use_custom_template)
9562     AskToCopyAndModifyLevelTemplate();
9563
9564   element_info[element] = custom_element;
9565
9566   // needed here to restore runtime value "element_info[element].gfx_element"
9567   InitElementPropertiesGfxElement();
9568 }
9569
9570 static void CopyClassicElementPropertiesToGame(int element)
9571 {
9572   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9573     setMoveIntoAcidProperty(&level, element,
9574                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
9575
9576   if (MAYBE_DONT_COLLIDE_WITH(element))
9577     setDontCollideWithProperty(&level, element,
9578                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
9579 }
9580
9581 static void CopyElementPropertiesToGame(int element)
9582 {
9583   if (IS_CUSTOM_ELEMENT(element))
9584     CopyCustomElementPropertiesToGame(element);
9585   else if (IS_GROUP_ELEMENT(element))
9586     CopyGroupElementPropertiesToGame(element);
9587   else if (IS_EMPTY_ELEMENT(element))
9588     CopyEmptyElementPropertiesToGame(element);
9589   else
9590     CopyClassicElementPropertiesToGame(element);
9591 }
9592
9593 #if DEBUG
9594 static void CheckElementDescriptions(void)
9595 {
9596   int i;
9597
9598   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9599     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
9600       Warn("no element description file for element '%s'", EL_NAME(i));
9601 }
9602 #endif
9603
9604 static int getMaxEdFieldX(boolean has_scrollbar)
9605 {
9606   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
9607   int sxsize = SXSIZE - scrollbar_width;
9608   int max_ed_fieldx = sxsize / ed_tilesize;
9609
9610   return max_ed_fieldx;
9611 }
9612
9613 static int getMaxEdFieldY(boolean has_scrollbar)
9614 {
9615   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
9616                          INFOTEXT_YSIZE_FULL : 0);
9617   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
9618   int sysize = SYSIZE - scrollbar_height - infotext_height;
9619   int max_ed_fieldy = sysize / ed_tilesize;
9620
9621   return max_ed_fieldy;
9622 }
9623
9624 static void InitZoomLevelSettings(int zoom_tilesize)
9625 {
9626   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
9627
9628   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
9629   {
9630     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
9631     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
9632
9633     // make sure that tile size is always a power of 2
9634     ed_tilesize = (1 << log_2(ed_tilesize));
9635
9636     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9637     {
9638       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
9639       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
9640     }
9641   }
9642
9643   last_game_engine_type = level.game_engine_type;
9644
9645   // limit zoom tilesize by upper and lower bound
9646   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
9647
9648   // store zoom tilesize in auto setup file only if it was manually changed
9649   if (zoom_tilesize != -1)
9650     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
9651
9652   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
9653   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
9654 }
9655
9656 static void InitDrawingElements(void)
9657 {
9658   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
9659
9660   if (level.game_engine_type == game_engine_type_last)
9661     return;
9662
9663   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
9664   {
9665     new_element1 = EL_BD_WALL;
9666     new_element2 = EL_EMPTY;
9667     new_element3 = EL_BD_SAND;
9668   }
9669   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
9670   {
9671     new_element1 = EL_SP_CHIP_SINGLE;
9672     new_element2 = EL_EMPTY;
9673     new_element3 = EL_SP_BASE;
9674   }
9675   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9676   {
9677     new_element1 = EL_MM_MIRROR_START;
9678     new_element2 = EL_EMPTY;
9679     new_element3 = EL_MM_WOODEN_WALL;
9680   }
9681   else
9682   {
9683     new_element1 = EL_WALL;
9684     new_element2 = EL_EMPTY;
9685     new_element3 = EL_SAND;
9686   }
9687
9688   game_engine_type_last = level.game_engine_type;
9689 }
9690
9691 static void InitLevelSetInfo(void)
9692 {
9693   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
9694            "%s", leveldir_current->name);
9695   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
9696            "%s", leveldir_current->author);
9697
9698   levelset_num_levels = leveldir_current->levels;
9699
9700   levelset_use_levelset_artwork = FALSE;
9701   levelset_copy_level_template = FALSE;
9702
9703   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
9704 }
9705
9706 static void ChangeEditorToLevelSet(char *levelset_subdir)
9707 {
9708   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
9709
9710   // the previous level set might have used custom artwork
9711   ReloadCustomArtwork(0);
9712
9713   LoadLevelSetup_SeriesInfo();
9714
9715   SaveLevelSetup_LastSeries();
9716   SaveLevelSetup_SeriesInfo();
9717
9718   TapeErase();
9719
9720   LoadLevel(level_nr);
9721   LoadScore(level_nr);
9722
9723   DrawLevelEd();
9724 }
9725
9726 static boolean useEditorDoorAnimation(void)
9727 {
9728   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
9729   boolean door_1_viewport_unchanged =
9730     (vp_door_1->x      == DX     &&
9731      vp_door_1->y      == DY     &&
9732      vp_door_1->width  == DXSIZE &&
9733      vp_door_1->height == DYSIZE);
9734   boolean door_1_contains_toolbox =
9735     (EX >= DX &&
9736      EY >= DY &&
9737      EX + EXSIZE <= DX + DXSIZE &&
9738      EY + EYSIZE <= DY + DYSIZE);
9739
9740   return (door_1_viewport_unchanged && door_1_contains_toolbox);
9741 }
9742
9743 static void DrawEditorDoorBackground(int graphic, int x, int y,
9744                                      int width, int height)
9745 {
9746   struct GraphicInfo *g = &graphic_info[graphic];
9747
9748   if (g->bitmap != NULL)
9749     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
9750                MIN(width, g->width), MIN(height, g->height), x, y);
9751   else
9752     ClearRectangle(drawto, x, y, width, height);
9753 }
9754
9755 static void DrawEditorDoorContent(void)
9756 {
9757   // needed for gadgets drawn on background (like palette scrollbar)
9758   SetDoorBackgroundImage(IMG_UNDEFINED);
9759
9760   // copy default editor door content to main double buffer
9761   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
9762
9763   // draw bigger door
9764   DrawSpecialEditorDoor();
9765
9766   // draw new control window
9767   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
9768
9769   // draw all toolbox gadgets to editor doors
9770   MapControlButtons();
9771
9772   // when returning from test game to properties page, redraw toolbox gadgets
9773   if (edit_mode == ED_MODE_PROPERTIES)
9774   {
9775     UnmapLevelEditorToolboxDrawingGadgets();
9776     UnmapLevelEditorToolboxCustomGadgets();
9777
9778     MapLevelEditorToolboxCustomGadgetsIfNeeded();
9779   }
9780
9781   // draw all palette gadgets to editor doors
9782   ModifyEditorElementList();
9783   RedrawDrawingElements();
9784
9785   // copy actual editor door content to door double buffer for OpenDoor()
9786   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
9787 }
9788
9789 void DrawLevelEd(void)
9790 {
9791   int fade_mask = REDRAW_FIELD;
9792
9793   FadeSoundsAndMusic();
9794
9795   if (CheckFadeAll())
9796     fade_mask = REDRAW_ALL;
9797
9798   FadeOut(fade_mask);
9799
9800   // needed if different viewport properties defined for editor
9801   ChangeViewportPropertiesIfNeeded();
9802
9803   ClearField();
9804
9805   InitZoomLevelSettings(-1);
9806   InitDrawingElements();
9807   InitLevelSetInfo();
9808
9809 #if DEBUG
9810   CheckElementDescriptions();
9811 #endif
9812
9813   if (level_editor_test_game)
9814   {
9815     CopyPlayfield(level.field, Tile);
9816     CopyPlayfield(TileBackup, level.field);
9817
9818     level_editor_test_game = FALSE;
9819   }
9820   else
9821   {
9822     edit_mode = ED_MODE_DRAWING;
9823     edit_mode_levelconfig = ED_MODE_LEVELCONFIG_LEVEL;
9824     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
9825
9826     ResetUndoBuffer();
9827
9828     level_xpos = -1;
9829     level_ypos = -1;
9830   }
9831
9832   // redraw_mask |= REDRAW_ALL;
9833
9834   FreeLevelEditorGadgets();
9835   CreateLevelEditorGadgets();
9836
9837   ReinitializeElementList();            // update dynamic level element list
9838   ReinitializeElementListButtons();     // custom element may look different
9839
9840   InitElementPropertiesGfxElement();
9841
9842   UnmapAllGadgets();
9843
9844   DrawEditModeWindow_PlayfieldOnly();
9845
9846   DrawMaskedBorder(fade_mask);
9847
9848   // use door animation if door 1 viewport is unchanged and contains toolbox
9849   if (useEditorDoorAnimation())
9850   {
9851     FadeIn(fade_mask);
9852
9853     DrawEditorDoorContent();
9854
9855     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
9856   }
9857   else
9858   {
9859     DrawEditorDoorContent();
9860
9861     FadeIn(fade_mask);
9862   }
9863
9864   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
9865 }
9866
9867 static void AdjustDrawingAreaGadgets(void)
9868 {
9869   int ed_xsize = lev_fieldx + 2;
9870   int ed_ysize = lev_fieldy + 2;
9871   int max_ed_fieldx = MAX_ED_FIELDX;
9872   int max_ed_fieldy = MAX_ED_FIELDY;
9873   boolean horizontal_scrollbar_needed;
9874   boolean vertical_scrollbar_needed;
9875   int x, y, width, height;
9876
9877   if (suppressBorderElement())
9878   {
9879     ed_xsize = lev_fieldx;
9880     ed_ysize = lev_fieldy;
9881   }
9882
9883   // check if we need any scrollbars
9884   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9885   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9886
9887   // check if we have a smaller editor field because of scrollbars
9888   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9889   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9890
9891   // check again if we now need more scrollbars because of less space
9892   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9893   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9894
9895   // check if editor field gets even smaller after adding new scrollbars
9896   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9897   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9898
9899   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
9900   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
9901
9902   x = SX + ed_fieldx * ed_tilesize;
9903   y = SY + ed_fieldy * ed_tilesize;
9904
9905   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
9906   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
9907
9908   // adjust drawing area gadget
9909   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
9910                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
9911                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
9912                GDI_END);
9913
9914   // adjust horizontal scrollbar gadgets
9915   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
9916                GDI_Y, y,
9917                GDI_END);
9918   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
9919                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
9920                GDI_Y, y,
9921                GDI_END);
9922   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
9923                GDI_Y, y,
9924                GDI_WIDTH, width,
9925                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
9926                GDI_END);
9927
9928   // adjust vertical scrollbar gadgets
9929   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
9930                GDI_X, x,
9931                GDI_END);
9932   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
9933                GDI_X, x,
9934                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
9935                GDI_END);
9936   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
9937                GDI_X, x,
9938                GDI_HEIGHT, height,
9939                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
9940                GDI_END);
9941 }
9942
9943 static void AdjustLevelScrollPosition(void)
9944 {
9945   if (level_xpos < -1)
9946     level_xpos = -1;
9947   if (level_xpos > lev_fieldx - ed_fieldx + 1)
9948     level_xpos = lev_fieldx - ed_fieldx + 1;
9949   if (lev_fieldx < ed_fieldx - 2)
9950     level_xpos = -1;
9951
9952   if (level_ypos < -1)
9953     level_ypos = -1;
9954   if (level_ypos > lev_fieldy - ed_fieldy + 1)
9955     level_ypos = lev_fieldy - ed_fieldy + 1;
9956   if (lev_fieldy < ed_fieldy - 2)
9957     level_ypos = -1;
9958
9959   if (suppressBorderElement())
9960   {
9961     level_xpos = 0;
9962     level_ypos = 0;
9963   }
9964 }
9965
9966 static void AdjustEditorScrollbar(int id)
9967 {
9968   struct GadgetInfo *gi = level_editor_gadget[id];
9969   int items_max, items_visible, item_position;
9970
9971   if (id == GADGET_ID_SCROLL_HORIZONTAL)
9972   {
9973     items_max = MAX(lev_fieldx + 2, ed_fieldx);
9974     items_visible = ed_fieldx;
9975     item_position = level_xpos + 1;
9976   }
9977   else
9978   {
9979     items_max = MAX(lev_fieldy + 2, ed_fieldy);
9980     items_visible = ed_fieldy;
9981     item_position = level_ypos + 1;
9982   }
9983
9984   if (item_position > items_max - items_visible)
9985     item_position = items_max - items_visible;
9986
9987   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9988                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9989 }
9990
9991 static void AdjustElementListScrollbar(void)
9992 {
9993   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
9994   int items_max, items_visible, item_position;
9995
9996   // correct position of element list scrollbar
9997   if (element_shift < 0)
9998     element_shift = 0;
9999   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
10000     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
10001
10002   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
10003   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
10004   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
10005
10006   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
10007                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
10008                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
10009 }
10010
10011 static void ModifyEditorCounterValue(int counter_id, int new_value)
10012 {
10013   int *counter_value = counterbutton_info[counter_id].value;
10014   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
10015   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10016
10017   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
10018
10019   if (counter_value != NULL)
10020     *counter_value = gi->textinput.number_value;
10021 }
10022
10023 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
10024 {
10025   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
10026   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10027
10028   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
10029
10030   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
10031       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
10032   {
10033     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
10034     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
10035
10036     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
10037     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
10038                  GDI_END);
10039   }
10040 }
10041
10042 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
10043 {
10044   int gadget_id = selectbox_info[selectbox_id].gadget_id;
10045   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10046   int new_index_value = setSelectboxValue(selectbox_id, new_value);
10047
10048   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
10049 }
10050
10051 static void ModifyEditorSelectboxOptions(int selectbox_id,
10052                                          struct ValueTextInfo *options)
10053 {
10054   int gadget_id = selectbox_info[selectbox_id].gadget_id;
10055   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10056
10057   selectbox_info[selectbox_id].options = options;
10058
10059   // set index to zero -- list may be shorter now (correct later, if needed)
10060   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
10061                GDI_SELECTBOX_OPTIONS, options, GDI_END);
10062 }
10063
10064 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
10065 {
10066   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
10067   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10068
10069   drawingarea_info[drawingarea_id].area_xsize = xsize;
10070   drawingarea_info[drawingarea_id].area_ysize = ysize;
10071
10072   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
10073 }
10074
10075 static void ModifyEditorElementList(void)
10076 {
10077   int i;
10078
10079   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
10080     return;
10081
10082   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
10083   {
10084     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
10085     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10086     struct GadgetDesign *gd = &gi->deco.design;
10087     int element = editor_elements[element_shift + i];
10088     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
10089
10090     UnmapGadget(gi);
10091
10092     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
10093
10094     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
10095
10096     MapGadget(gi);
10097   }
10098 }
10099
10100 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
10101 {
10102   int graphic = el2edimg(element);
10103   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
10104
10105   if (pos->x == -1 &&
10106       pos->y == -1)
10107     return;
10108
10109   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
10110 }
10111
10112 static void ModifyDrawingElementButton(int element, int id)
10113 {
10114   struct GadgetInfo *gi = level_editor_gadget[id];
10115   Bitmap *deco_bitmap;
10116   int deco_x, deco_y;
10117   int tile_size = gi->deco.width;
10118
10119   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
10120
10121   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
10122 }
10123
10124 static void PickDrawingElement(int button, int element)
10125 {
10126   struct
10127   {
10128     int *new_element;
10129     struct XYTileSize *pos;
10130     int id;
10131   } de, drawing_elements[] =
10132   {
10133     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
10134     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
10135     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
10136   };
10137
10138   if (button < 1 || button > 3)
10139     return;
10140
10141   if (IS_MM_WALL(element))
10142     element = map_mm_wall_element(element);
10143
10144   de = drawing_elements[button - 1];
10145
10146   *de.new_element = element;    // update global drawing element variable
10147
10148   DrawDrawingElementGraphic(element, de.pos);
10149   ModifyDrawingElementButton(element, de.id);
10150
10151   redraw_mask |= REDRAW_DOOR_1;
10152 }
10153
10154 static void RedrawDrawingElements(void)
10155 {
10156   PickDrawingElement(1, new_element1);
10157   PickDrawingElement(2, new_element2);
10158   PickDrawingElement(3, new_element3);
10159 }
10160
10161 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
10162 {
10163   stick_element_properties_window = FALSE;
10164
10165   SetMainBackgroundImage(IMG_UNDEFINED);
10166   ClearField();
10167
10168   UnmapLevelEditorFieldGadgets();
10169
10170   AdjustDrawingAreaGadgets();
10171   AdjustLevelScrollPosition();
10172   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
10173   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
10174
10175   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10176
10177   MapMainDrawingArea();
10178
10179   if (remap_toolbox_gadgets)
10180   {
10181     UnmapLevelEditorToolboxCustomGadgets();
10182     MapLevelEditorToolboxDrawingGadgets();
10183   }
10184 }
10185
10186 static void DrawDrawingWindow(void)
10187 {
10188   DrawDrawingWindowExt(TRUE);
10189 }
10190
10191 static int getTabulatorBarWidth(void)
10192 {
10193   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10194   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
10195
10196   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
10197 }
10198
10199 static int getTabulatorBarHeight(void)
10200 {
10201   return ED_TAB_BAR_HEIGHT;
10202 }
10203
10204 static Pixel getTabulatorBarColor(void)
10205 {
10206   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10207   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10208   int gd_x = gd->x + gd_gi1->border.width / 2;
10209   int gd_y = gd->y + gd_gi1->height - 1;
10210
10211   return GetPixel(gd->bitmap, gd_x, gd_y);
10212 }
10213
10214 static void DrawLevelConfigTabulatorGadgets(void)
10215 {
10216   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10217   Pixel tab_color = getTabulatorBarColor();
10218   int id_first = ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL;
10219   int id_last  = ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR;
10220   int i;
10221
10222   // draw additional "engine" tabulator when using native BD engine
10223   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
10224     id_last = ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE;
10225
10226   for (i = id_first; i <= id_last; i++)
10227   {
10228     int gadget_id = textbutton_info[i].gadget_id;
10229     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10230     boolean active = (i != edit_mode_levelconfig);
10231
10232     // draw background line below tabulator button
10233     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10234
10235     // draw solid line below inactive tabulator buttons
10236     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10237       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10238                     ED_GADGET_TINY_DISTANCE, tab_color);
10239
10240     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10241     MapTextbuttonGadget(i);
10242   }
10243
10244   // draw little border line below tabulator buttons
10245   if (tab_color != BLACK_PIXEL)                 // black => transparent
10246     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10247                   ED_GADGET_TINY_DISTANCE,
10248                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10249 }
10250
10251 static void DrawPropertiesTabulatorGadgets(void)
10252 {
10253   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10254   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10255   int gd_x = gd->x + gd_gi1->border.width / 2;
10256   int gd_y = gd->y + gd_gi1->height - 1;
10257   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10258   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
10259   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
10260   int i;
10261
10262   // draw two config tabulators for player elements
10263   if (IS_PLAYER_ELEMENT(properties_element))
10264     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
10265
10266   // draw two config and one "change" tabulator for custom elements
10267   if (IS_CUSTOM_ELEMENT(properties_element))
10268     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
10269
10270   for (i = id_first; i <= id_last; i++)
10271   {
10272     int gadget_id = textbutton_info[i].gadget_id;
10273     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10274     boolean active = (i != edit_mode_properties);
10275
10276     // use "config 1" and "config 2" instead of "config" for players and CEs
10277     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
10278         (IS_PLAYER_ELEMENT(properties_element) ||
10279          IS_CUSTOM_ELEMENT(properties_element)))
10280       continue;
10281
10282     // draw background line below tabulator button
10283     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10284
10285     // draw solid line below inactive tabulator buttons
10286     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10287       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10288                     ED_GADGET_TINY_DISTANCE, tab_color);
10289
10290     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10291     MapTextbuttonGadget(i);
10292   }
10293
10294   // draw little border line below tabulator buttons
10295   if (tab_color != BLACK_PIXEL)                 // black => transparent
10296     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10297                   ED_GADGET_TINY_DISTANCE,
10298                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10299 }
10300
10301 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
10302 {
10303   DrawText(SX + xpos, SY + ypos, text, font_nr);
10304 }
10305
10306 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
10307                                            int xpos, int ypos)
10308 {
10309   int font_width = getFontWidth(font_nr);
10310   int font_height = getFontHeight(font_nr);
10311   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
10312   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
10313
10314   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
10315                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
10316                       TRUE, FALSE, FALSE);
10317 }
10318
10319 static void DrawLevelConfigLevel(void)
10320 {
10321   int i;
10322
10323   // draw counter gadgets
10324   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
10325     MapCounterButtons(i);
10326
10327   // draw checkbutton gadgets
10328   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
10329     MapCheckbuttonGadget(i);
10330
10331   // draw selectbox gadgets
10332   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
10333     MapSelectboxGadget(i);
10334
10335   // draw text input gadgets
10336   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
10337     MapTextInputGadget(i);
10338 }
10339
10340 static char *getLevelSubdirFromSaveMode(int save_mode)
10341 {
10342   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
10343     return getNewUserLevelSubdir();
10344
10345   return leveldir_current->subdir;
10346 }
10347
10348 static void DrawLevelConfigLevelSet_DirectoryInfo(void)
10349 {
10350   char *directory_text = "Level set directory:";
10351   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
10352   int font1_nr = FONT_TEXT_1;
10353   int font2_nr = FONT_TEXT_2;
10354   int font1_height = getFontHeight(font1_nr);
10355   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
10356   int x = ED_LEVEL_SETTINGS_X(0);
10357   int y = ED_LEVEL_SETTINGS_Y(6);
10358
10359   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
10360   PrintInfoText(directory_name, font2_nr, x, y);
10361 }
10362
10363 static void DrawLevelConfigLevelSet(void)
10364 {
10365   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
10366   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
10367   int i;
10368
10369   // draw counter gadgets
10370   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
10371     MapCounterButtons(i);
10372
10373   // draw checkbutton gadgets
10374   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
10375   {
10376     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
10377         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
10378         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
10379       continue;
10380
10381     MapCheckbuttonGadget(i);
10382   }
10383
10384   // draw selectbox gadgets
10385   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
10386     MapSelectboxGadget(i);
10387
10388   // draw text input gadgets
10389   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
10390     MapTextInputGadget(i);
10391
10392   // draw textbutton gadgets
10393   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
10394
10395   // draw info text
10396   DrawLevelConfigLevelSet_DirectoryInfo();
10397 }
10398
10399 static void DrawLevelConfigEditor(void)
10400 {
10401   int i;
10402
10403   // draw counter gadgets
10404   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
10405     MapCounterButtons(i);
10406
10407   // draw checkbutton gadgets
10408   for (i = ED_CHECKBUTTON_ID_EDITOR_FIRST; i <= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
10409     MapCheckbuttonGadget(i);
10410
10411   // draw radiobutton gadgets
10412   for (i = ED_RADIOBUTTON_ID_EDITOR_FIRST; i <= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
10413     MapRadiobuttonGadget(i);
10414
10415   // draw drawing area
10416   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
10417
10418   // draw textbutton gadgets
10419   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
10420 }
10421
10422 static void DrawLevelConfigEngine(void)
10423 {
10424   int i;
10425
10426   // draw counter gadgets
10427   if (level.bd_scheduling_type == GD_SCHEDULING_MILLISECONDS)
10428   {
10429     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_MS);
10430     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES);
10431   }
10432   else
10433   {
10434     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_C64);
10435     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS);
10436   }
10437
10438   // draw checkbutton gadgets
10439   for (i = ED_CHECKBUTTON_ID_ENGINE_FIRST; i <= ED_CHECKBUTTON_ID_ENGINE_LAST; i++)
10440     MapCheckbuttonGadget(i);
10441
10442   // draw selectbox gadgets
10443   for (i = ED_SELECTBOX_ID_ENGINE_FIRST; i <= ED_SELECTBOX_ID_ENGINE_LAST; i++)
10444     MapSelectboxGadget(i);
10445 }
10446
10447 static void DrawLevelConfigWindow(void)
10448 {
10449   char *text = "Global Settings";
10450   int font_nr = FONT_TITLE_1;
10451   struct MenuPosInfo *pos = &editor.settings.headline;
10452   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
10453   int sy = SY + pos->y;
10454
10455   stick_element_properties_window = FALSE;
10456
10457   SetAutomaticNumberOfGemsNeeded();
10458
10459   UnmapLevelEditorFieldGadgets();
10460
10461   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10462   ClearField();
10463
10464   DrawText(sx, sy, text, font_nr);
10465
10466   DrawLevelConfigTabulatorGadgets();
10467
10468   if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVEL)
10469     DrawLevelConfigLevel();
10470   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVELSET)
10471     DrawLevelConfigLevelSet();
10472   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_EDITOR)
10473     DrawLevelConfigEditor();
10474   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_ENGINE)
10475     DrawLevelConfigEngine();
10476 }
10477
10478 static void DrawCustomContentArea(void)
10479 {
10480   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
10481   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10482   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
10483   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
10484   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
10485   int xoffset = ED_GADGET_SPACE_DISTANCE;
10486
10487   // add distance for potential left text (without drawing area border)
10488   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
10489
10490   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10491
10492   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
10493 }
10494
10495 static void DrawCustomChangeContentArea(void)
10496 {
10497   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
10498   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10499   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
10500   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
10501   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
10502   int xoffset = ED_GADGET_SPACE_DISTANCE;
10503
10504   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10505
10506   MapDrawingArea(id);
10507 }
10508
10509 static void RemoveElementContentArea(int id, int font_height)
10510 {
10511   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10512
10513   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
10514                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
10515                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10516                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
10517                  ED_GADGET_TEXT_DISTANCE + font_height);
10518 }
10519
10520 static void DrawYamYamContentAreas(void)
10521 {
10522   int font_nr = FONT_TEXT_1;
10523   int font_height = getFontHeight(font_nr);
10524   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10525   int yoffset = (tilesize - font_height) / 2;
10526   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
10527   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
10528   int i;
10529
10530   // display counter to choose number of element content areas
10531   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
10532
10533   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10534   {
10535     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
10536
10537     if (i < level.num_yamyam_contents)
10538     {
10539       MapDrawingArea(id);
10540     }
10541     else
10542     {
10543       UnmapDrawingArea(id);
10544
10545       // delete content areas in case of reducing number of them
10546       RemoveElementContentArea(id, font_height);
10547     }
10548   }
10549
10550   DrawText(x, y + 0 * tilesize, "content", font_nr);
10551   DrawText(x, y + 1 * tilesize, "when",    font_nr);
10552   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
10553 }
10554
10555 static void DrawMagicBallContentAreas(void)
10556 {
10557   int font_nr = FONT_TEXT_1;
10558   int font_height = getFontHeight(font_nr);
10559   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10560   int yoffset = (tilesize - font_height) / 2;
10561   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
10562   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
10563   int i;
10564
10565   // display counter to choose number of element content areas
10566   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
10567
10568   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10569   {
10570     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
10571
10572     if (i < level.num_ball_contents)
10573     {
10574       MapDrawingArea(id);
10575     }
10576     else
10577     {
10578       UnmapDrawingArea(id);
10579
10580       // delete content areas in case of reducing number of them
10581       RemoveElementContentArea(id, font_height);
10582     }
10583   }
10584
10585   DrawText(x, y + 0 * tilesize, "generated", font_nr);
10586   DrawText(x, y + 1 * tilesize, "when",      font_nr);
10587   DrawText(x, y + 2 * tilesize, "active",    font_nr);
10588 }
10589
10590 static void DrawAndroidElementArea(void)
10591 {
10592   int id = ED_DRAWING_ID_ANDROID_CONTENT;
10593   int num_elements = level.num_android_clone_elements;
10594   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10595   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10596   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10597   int xsize = MAX_ANDROID_ELEMENTS;
10598   int ysize = 1;
10599
10600   // display counter to choose number of element areas
10601   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
10602
10603   if (drawingarea_info[id].text_left != NULL)
10604     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10605
10606   UnmapDrawingArea(id);
10607
10608   ModifyEditorDrawingArea(id, num_elements, 1);
10609
10610   // delete content areas in case of reducing number of them
10611   DrawBackground(sx, sy,
10612                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10613                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10614
10615   MapDrawingArea(id);
10616 }
10617
10618 static void DrawGroupElementArea(void)
10619 {
10620   int id = ED_DRAWING_ID_GROUP_CONTENT;
10621   int num_elements = group_element_info.num_elements;
10622   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10623   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10624   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10625   int xsize = MAX_ELEMENTS_IN_GROUP;
10626   int ysize = 1;
10627
10628   if (drawingarea_info[id].text_left != NULL)
10629     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10630
10631   UnmapDrawingArea(id);
10632
10633   ModifyEditorDrawingArea(id, num_elements, 1);
10634
10635   // delete content areas in case of reducing number of them
10636   DrawBackground(sx, sy,
10637                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10638                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10639
10640   MapDrawingArea(id);
10641 }
10642
10643 static void DrawPlayerInitialInventoryArea(int element)
10644 {
10645   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
10646   int player_nr = GET_PLAYER_NR(element);
10647   int num_elements = level.initial_inventory_size[player_nr];
10648   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10649   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10650   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10651   int xsize = MAX_INITIAL_INVENTORY_SIZE;
10652   int ysize = 1;
10653
10654   // determine horizontal position to the right of specified gadget
10655   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
10656     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
10657           ED_DRAWINGAREA_TEXT_DISTANCE);
10658
10659   // determine horizontal offset for leading text
10660   if (drawingarea_info[id].text_left != NULL)
10661     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10662
10663   UnmapDrawingArea(id);
10664
10665   ModifyEditorDrawingArea(id, num_elements, 1);
10666
10667   // delete content areas in case of reducing number of them
10668   DrawBackground(sx, sy,
10669                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10670                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10671
10672   MapDrawingArea(id);
10673 }
10674
10675 static void DrawMMBallContentArea(void)
10676 {
10677   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
10678   int num_elements = level.num_mm_ball_contents;
10679   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10680   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10681   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10682   int xsize = MAX_MM_BALL_CONTENTS;
10683   int ysize = 1;
10684
10685   if (drawingarea_info[id].text_left != NULL)
10686     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10687
10688   UnmapDrawingArea(id);
10689
10690   ModifyEditorDrawingArea(id, num_elements, 1);
10691
10692   // delete content areas in case of reducing number of them
10693   DrawBackground(sx, sy,
10694                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10695                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10696
10697   MapDrawingArea(id);
10698 }
10699
10700 static void DrawEnvelopeTextArea(int envelope_nr)
10701 {
10702   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
10703   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
10704
10705   UnmapGadget(gi);
10706
10707   DrawBackground(gi->x, gi->y,
10708                  gi->textarea.crop_width, gi->textarea.crop_height);
10709
10710   if (envelope_nr != -1)
10711     textarea_info[id].value = level.envelope[envelope_nr].text;
10712
10713   ModifyGadget(gi, GDI_AREA_SIZE,
10714                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
10715                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
10716                GDI_END);
10717
10718   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
10719 }
10720
10721 static void DrawPropertiesInfo(void)
10722 {
10723   static struct
10724   {
10725     int value;
10726     char *text;
10727   }
10728   properties[] =
10729   {
10730     // configurable properties
10731
10732     { EP_WALKABLE_OVER,         "- player can walk over it"             },
10733     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
10734     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
10735     { EP_PASSABLE_OVER,         "- player can pass over it"             },
10736     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
10737     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
10738     { EP_PROTECTED,             "- player is protected by it"           },
10739
10740     { EP_DIGGABLE,              "- can be digged away"                  },
10741     { EP_COLLECTIBLE,           "- can be collected"                    },
10742     { EP_DROPPABLE,             "- can be dropped after collecting"     },
10743     { EP_THROWABLE,             "- can be thrown after collecting"      },
10744     { EP_PUSHABLE,              "- can be pushed"                       },
10745
10746     { EP_CAN_FALL,              "- can fall"                            },
10747     { EP_CAN_MOVE,              "- can move"                            },
10748
10749     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
10750 #if 0
10751     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
10752 #endif
10753     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
10754
10755     { EP_SLIPPERY,              "- slippery for falling elements"       },
10756     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
10757
10758     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
10759     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
10760     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
10761     { EP_DONT_TOUCH,            "- deadly when touching"                },
10762
10763     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
10764
10765     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
10766     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
10767     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
10768
10769     { EP_CAN_CHANGE,            "- can change to other element"         },
10770
10771     // pre-defined properties
10772     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
10773     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
10774     { EP_SWITCHABLE,            "- can be switched"                     },
10775 #if 0
10776     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
10777 #endif
10778
10779     { -1,                       NULL                                    }
10780   };
10781   char *filename = getElementDescriptionFilename(properties_element);
10782   char *num_elements_text = "In this level: ";
10783   char *num_similar_text = "Similar tiles: ";
10784   char *properties_text = "Standard properties: ";
10785   char *description_text = "Description:";
10786   char *no_description_text = "No description available.";
10787   char *none_text = "None";
10788   float percentage;
10789   int num_elements_in_level = 0;
10790   int num_similar_in_level = 0;
10791   int num_hires_tiles_in_level = 0;
10792   int num_standard_properties = 0;
10793   int font1_nr = FONT_TEXT_1;
10794   int font2_nr = FONT_TEXT_2;
10795   int font1_width = getFontWidth(font1_nr);
10796   int font1_height = getFontHeight(font1_nr);
10797   int font2_height = getFontHeight(font2_nr);
10798   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
10799   int font2_yoffset = (font1_height - font2_height) / 2;
10800   int num_elements_text_len = strlen(num_elements_text) * font1_width;
10801   int num_similar_text_len = strlen(num_similar_text) * font1_width;
10802   int properties_text_len = strlen(properties_text) * font1_width;
10803   int xpos = ED_ELEMENT_SETTINGS_X(0);
10804   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10805   int i, x, y;
10806
10807   if (setup.editor.show_element_token)
10808   {
10809     int font3_nr = FONT_TEXT_3;
10810     int font3_height = getFontHeight(font3_nr);
10811
10812     DrawTextF(xpos, ypos, font3_nr,
10813               "[%s]", element_info[properties_element].token_name);
10814
10815     ypos += 2 * font3_height;
10816   }
10817
10818   // ----- print number of elements / percentage of this element in level
10819
10820   for (y = 0; y < lev_fieldy; y++)
10821   {
10822     for (x = 0; x < lev_fieldx; x++)
10823     {
10824       if (Tile[x][y] == properties_element)
10825       {
10826         num_elements_in_level++;
10827       }
10828       else if (IS_MM_WALL(Tile[x][y]) &&
10829                map_mm_wall_element(Tile[x][y]) == properties_element)
10830       {
10831         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
10832       }
10833     }
10834   }
10835
10836   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10837
10838   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
10839
10840   if (num_hires_tiles_in_level > 0)
10841     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10842               "%d wall tiles", num_hires_tiles_in_level);
10843   else if (num_elements_in_level > 0)
10844     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10845               "%d (%.2f %%)", num_elements_in_level, percentage);
10846   else
10847     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10848               none_text);
10849
10850   // ----- print number of similar elements / percentage of them in level
10851
10852   for (y = 0; y < lev_fieldy; y++)
10853   {
10854     for (x = 0; x < lev_fieldx; x++)
10855     {
10856       if (strEqual(element_info[Tile[x][y]].class_name,
10857                    element_info[properties_element].class_name))
10858       {
10859         num_similar_in_level++;
10860       }
10861     }
10862   }
10863
10864   if (num_similar_in_level != num_elements_in_level)
10865   {
10866     ypos += 1 * MAX(font1_height, font2_height);
10867
10868     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10869
10870     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
10871
10872     if (num_similar_in_level > 0)
10873       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10874                 "%d (%.2f %%)", num_similar_in_level, percentage);
10875     else
10876       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10877                 none_text);
10878   }
10879
10880   ypos += 2 * MAX(font1_height, font2_height);
10881
10882   // ----- print standard properties of this element
10883
10884   DrawTextS(xpos, ypos, font1_nr, properties_text);
10885
10886   ypos += line1_height;
10887
10888   for (i = 0; properties[i].value != -1; i++)
10889   {
10890     if (!HAS_PROPERTY(properties_element, properties[i].value))
10891       continue;
10892
10893     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
10894
10895     ypos += font2_height;
10896
10897     num_standard_properties++;
10898   }
10899
10900   if (num_standard_properties == 0)
10901   {
10902     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
10903               font2_nr, none_text);
10904
10905     ypos -= (line1_height - font1_height);
10906   }
10907
10908   ypos += MAX(font1_height, font2_height);
10909
10910   // ----- print special description of this element
10911
10912   PrintInfoText(description_text, font1_nr, xpos, ypos);
10913
10914   ypos += line1_height;
10915
10916   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
10917     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
10918 }
10919
10920 #define TEXT_COLLECTING         "Score for collecting"
10921 #define TEXT_COLLECTING_EXTRA   "Score for extra diamonds"
10922 #define TEXT_SMASHING           "Score for smashing"
10923 #define TEXT_SLURPING           "Score for slurping robot"
10924 #define TEXT_CRACKING           "Score for cracking"
10925 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
10926 #define TEXT_AMOEBA_THRESHOED   "Size for turning to rocks"
10927 #define TEXT_AMOEBA_SLOW_TIME   "Slow growth time (seconds)"
10928 #define TEXT_AMOEBA_SLOW_RATE   "Slow growth rate (percent)"
10929 #define TEXT_AMOEBA_FAST_RATE   "Fast growth rate (percent)"
10930 #define TEXT_DURATION           "Duration when activated"
10931 #define TEXT_DELAY_ON           "Delay before activating"
10932 #define TEXT_DELAY_OFF          "Delay before deactivating"
10933 #define TEXT_DELAY_CHANGING     "Delay before changing"
10934 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
10935 #define TEXT_DELAY_MOVING       "Delay before moving"
10936 #define TEXT_BALL_DELAY         "Element generation delay"
10937 #define TEXT_MOVE_SPEED         "Speed of android moving"
10938 #define TEXT_CLONE_SPEED        "Speed of android cloning"
10939 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
10940 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
10941 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
10942 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
10943 #define TEXT_TIME_BONUS         "Extra time to solve level"
10944 #define TEXT_TIME_PENALTY       "Time penalty if destroyed"
10945 #define TEXT_PERMEABILITY_RATE  "slime permeability rate"
10946 #define TEXT_PERMEABILITY_BITS  "slime permeability bits"
10947 #define TEXT_RANDOM_SEED        "slime random number seed"
10948 #define TEXT_ACID_SPREAD_RATE   "Spread rate (percent)"
10949 #define TEXT_BITER_MOVE_DELAY   "Move delay (BD frames)"
10950 #define TEXT_REPLICATION_DELAY  "Create delay (BD frames)"
10951
10952 static struct
10953 {
10954   int element;
10955   int *value;
10956   char *text;
10957   int min_value;
10958   int max_value;
10959 } elements_with_counter[] =
10960 {
10961   { EL_EMERALD,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10962   { EL_BD_DIAMOND,              &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10963   { EL_BD_DIAMOND,              &level.score[SC_DIAMOND_EXTRA],         TEXT_COLLECTING_EXTRA   },
10964   { EL_EMERALD_YELLOW,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10965   { EL_EMERALD_RED,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10966   { EL_EMERALD_PURPLE,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10967   { EL_SP_INFOTRON,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10968   { EL_DIAMOND,                 &level.score[SC_DIAMOND],               TEXT_COLLECTING         },
10969   { EL_CRYSTAL,                 &level.score[SC_CRYSTAL],               TEXT_COLLECTING         },
10970   { EL_PEARL,                   &level.score[SC_PEARL],                 TEXT_COLLECTING         },
10971   { EL_BUG,                     &level.score[SC_BUG],                   TEXT_SMASHING           },
10972   { EL_BUG_RIGHT,               &level.score[SC_BUG],                   TEXT_SMASHING           },
10973   { EL_BUG_UP,                  &level.score[SC_BUG],                   TEXT_SMASHING           },
10974   { EL_BUG_LEFT,                &level.score[SC_BUG],                   TEXT_SMASHING           },
10975   { EL_BUG_DOWN,                &level.score[SC_BUG],                   TEXT_SMASHING           },
10976   { EL_BD_BUTTERFLY,            &level.score[SC_BUG],                   TEXT_SMASHING           },
10977   { EL_BD_BUTTERFLY_RIGHT,      &level.score[SC_BUG],                   TEXT_SMASHING           },
10978   { EL_BD_BUTTERFLY_UP,         &level.score[SC_BUG],                   TEXT_SMASHING           },
10979   { EL_BD_BUTTERFLY_LEFT,       &level.score[SC_BUG],                   TEXT_SMASHING           },
10980   { EL_BD_BUTTERFLY_DOWN,       &level.score[SC_BUG],                   TEXT_SMASHING           },
10981   { EL_SP_ELECTRON,             &level.score[SC_BUG],                   TEXT_SMASHING           },
10982   { EL_SPACESHIP,               &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10983   { EL_SPACESHIP_RIGHT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10984   { EL_SPACESHIP_UP,            &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10985   { EL_SPACESHIP_LEFT,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10986   { EL_SPACESHIP_DOWN,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10987   { EL_BD_FIREFLY,              &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10988   { EL_BD_FIREFLY_RIGHT,        &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10989   { EL_BD_FIREFLY_UP,           &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10990   { EL_BD_FIREFLY_LEFT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10991   { EL_BD_FIREFLY_DOWN,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10992   { EL_SP_SNIKSNAK,             &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10993   { EL_YAMYAM,                  &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10994   { EL_YAMYAM_LEFT,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10995   { EL_YAMYAM_RIGHT,            &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10996   { EL_YAMYAM_UP,               &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10997   { EL_YAMYAM_DOWN,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10998   { EL_DARK_YAMYAM,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10999   { EL_ROBOT,                   &level.score[SC_ROBOT],                 TEXT_SMASHING           },
11000   { EL_PACMAN,                  &level.score[SC_PACMAN],                TEXT_SMASHING           },
11001   { EL_PACMAN_RIGHT,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
11002   { EL_PACMAN_UP,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
11003   { EL_PACMAN_LEFT,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
11004   { EL_PACMAN_DOWN,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
11005   { EL_NUT,                     &level.score[SC_NUT],                   TEXT_CRACKING           },
11006   { EL_DYNAMITE,                &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11007   { EL_EM_DYNAMITE,             &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11008   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11009   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11010   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
11011   { EL_SHIELD_NORMAL,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
11012   { EL_SHIELD_DEADLY,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
11013   { EL_EXTRA_TIME,              &level.extra_time_score,                TEXT_COLLECTING         },
11014   { EL_KEY_1,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11015   { EL_KEY_2,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11016   { EL_KEY_3,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11017   { EL_KEY_4,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
11018   { EL_EM_KEY_1,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11019   { EL_EM_KEY_2,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11020   { EL_EM_KEY_3,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11021   { EL_EM_KEY_4,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
11022   { EL_EMC_KEY_5,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11023   { EL_EMC_KEY_6,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11024   { EL_EMC_KEY_7,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11025   { EL_EMC_KEY_8,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
11026   { EL_DC_KEY_WHITE,            &level.score[SC_KEY],                   TEXT_COLLECTING         },
11027   { EL_MM_KETTLE,               &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11028   { EL_DF_CELL,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
11029   { EL_MM_KEY,                  &level.score[SC_KEY],                   TEXT_COLLECTING         },
11030   { EL_MM_LIGHTBALL,            &level.score[SC_ELEM_BONUS],            TEXT_COLLECTING         },
11031   { EL_MM_PACMAN,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
11032   { EL_MM_PACMAN_RIGHT,         &level.score[SC_PACMAN],                TEXT_SMASHING           },
11033   { EL_MM_PACMAN_UP,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
11034   { EL_MM_PACMAN_LEFT,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
11035   { EL_MM_PACMAN_DOWN,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
11036   { EL_AMOEBA_WET,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11037   { EL_AMOEBA_DRY,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11038   { EL_AMOEBA_FULL,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11039   { EL_BD_AMOEBA,               &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11040   { EL_EMC_DRIPPER,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
11041   { EL_BD_AMOEBA,               &level.bd_amoeba_threshold_too_big,     TEXT_AMOEBA_THRESHOED   },
11042   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_time,      TEXT_AMOEBA_SLOW_TIME   },
11043   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_rate,      TEXT_AMOEBA_SLOW_RATE,
11044                                 0, 100                                                          },
11045   { EL_BD_AMOEBA,               &level.bd_amoeba_fast_growth_rate,      TEXT_AMOEBA_FAST_RATE,
11046                                 0, 100                                                          },
11047   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_threshold_too_big,   TEXT_AMOEBA_THRESHOED   },
11048   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_time,    TEXT_AMOEBA_SLOW_TIME   },
11049   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_rate,    TEXT_AMOEBA_SLOW_RATE,
11050                                 0, 100                                                          },
11051   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_fast_growth_rate,    TEXT_AMOEBA_FAST_RATE,
11052                                 0, 100                                                          },
11053   { EL_MAGIC_WALL,              &level.time_magic_wall,                 TEXT_DURATION           },
11054   { EL_BD_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
11055   { EL_DC_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
11056   { EL_ROBOT_WHEEL,             &level.time_wheel,                      TEXT_DURATION           },
11057   { EL_TIMEGATE_SWITCH,         &level.time_timegate,                   TEXT_DURATION           },
11058   { EL_DC_TIMEGATE_SWITCH,      &level.time_timegate,                   TEXT_DURATION           },
11059   { EL_LIGHT_SWITCH,            &level.time_light,                      TEXT_DURATION           },
11060   { EL_LIGHT_SWITCH_ACTIVE,     &level.time_light,                      TEXT_DURATION           },
11061   { EL_SHIELD_NORMAL,           &level.shield_normal_time,              TEXT_DURATION           },
11062   { EL_SHIELD_DEADLY,           &level.shield_deadly_time,              TEXT_DURATION           },
11063   { EL_BD_CLOCK,                &level.bd_clock_extra_time,             TEXT_TIME_BONUS,
11064                                 -100, 100                                                       },
11065   { EL_BD_VOODOO_DOLL,          &level.bd_voodoo_penalty_time,          TEXT_TIME_PENALTY,
11066                                 0, 100                                                          },
11067   { EL_BD_SLIME,                &level.bd_slime_permeability_rate,      TEXT_PERMEABILITY_RATE,
11068                                 0, 100                                                          },
11069   { EL_BD_SLIME,                &level.bd_slime_permeability_bits_c64,  TEXT_PERMEABILITY_BITS,
11070                                 0, 255                                                          },
11071   { EL_BD_SLIME,                &level.bd_slime_random_seed_c64,        TEXT_RANDOM_SEED,
11072                                 -1, 65535                                                       },
11073   { EL_BD_ACID,                 &level.bd_acid_spread_rate,             TEXT_ACID_SPREAD_RATE,
11074                                 0, 100                                                          },
11075   { EL_BD_BITER,                &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11076                                 0, 3                                                            },
11077   { EL_BD_BITER_RIGHT,          &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11078                                 0, 3                                                            },
11079   { EL_BD_BITER_UP,             &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11080                                 0, 3                                                            },
11081   { EL_BD_BITER_LEFT,           &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11082                                 0, 3                                                            },
11083   { EL_BD_BITER_DOWN,           &level.bd_biter_move_delay,             TEXT_BITER_MOVE_DELAY,
11084                                 0, 3                                                            },
11085   { EL_BD_REPLICATOR,           &level.bd_replicator_create_delay,      TEXT_REPLICATION_DELAY,
11086                                 0, 100                                                          },
11087   { EL_EXTRA_TIME,              &level.extra_time,                      TEXT_TIME_BONUS         },
11088   { EL_TIME_ORB_FULL,           &level.time_orb_time,                   TEXT_TIME_BONUS         },
11089   { EL_GAME_OF_LIFE,            &level.game_of_life[0],                 TEXT_GAME_OF_LIFE_1,0,8 },
11090   { EL_GAME_OF_LIFE,            &level.game_of_life[1],                 TEXT_GAME_OF_LIFE_2,0,8 },
11091   { EL_GAME_OF_LIFE,            &level.game_of_life[2],                 TEXT_GAME_OF_LIFE_3,0,8 },
11092   { EL_GAME_OF_LIFE,            &level.game_of_life[3],                 TEXT_GAME_OF_LIFE_4,0,8 },
11093   { EL_BIOMAZE,                 &level.biomaze[0],                      TEXT_GAME_OF_LIFE_1,0,8 },
11094   { EL_BIOMAZE,                 &level.biomaze[1],                      TEXT_GAME_OF_LIFE_2,0,8 },
11095   { EL_BIOMAZE,                 &level.biomaze[2],                      TEXT_GAME_OF_LIFE_3,0,8 },
11096   { EL_BIOMAZE,                 &level.biomaze[3],                      TEXT_GAME_OF_LIFE_4,0,8 },
11097   { EL_EMC_ANDROID,             &level.android_move_time,               TEXT_MOVE_SPEED         },
11098   { EL_EMC_ANDROID,             &level.android_clone_time,              TEXT_CLONE_SPEED        },
11099   { EL_EMC_MAGIC_BALL,          &level.ball_time,                       TEXT_BALL_DELAY         },
11100   { EL_EMC_LENSES,              &level.lenses_score,                    TEXT_COLLECTING         },
11101   { EL_EMC_MAGNIFIER,           &level.magnify_score,                   TEXT_COLLECTING         },
11102   { EL_SPRING,                  &level.slurp_score,                     TEXT_SLURPING           },
11103   { EL_SPRING_LEFT,             &level.slurp_score,                     TEXT_SLURPING           },
11104   { EL_SPRING_RIGHT,            &level.slurp_score,                     TEXT_SLURPING           },
11105   { EL_EMC_LENSES,              &level.lenses_time,                     TEXT_DURATION           },
11106   { EL_EMC_MAGNIFIER,           &level.magnify_time,                    TEXT_DURATION           },
11107   { EL_MM_FUSE_ACTIVE,          &level.mm_time_fuse,                    TEXT_DELAY_OFF          },
11108   { EL_MM_BOMB,                 &level.mm_time_bomb,                    TEXT_DELAY_EXPLODING    },
11109   { EL_MM_GRAY_BALL,            &level.mm_time_ball,                    TEXT_DELAY_CHANGING     },
11110   { EL_MM_STEEL_BLOCK,          &level.mm_time_block,                   TEXT_DELAY_MOVING       },
11111   { EL_MM_WOODEN_BLOCK,         &level.mm_time_block,                   TEXT_DELAY_MOVING       },
11112
11113   { -1,                         NULL,                                   NULL                    }
11114 };
11115
11116 static boolean checkPropertiesConfig(int element)
11117 {
11118   int i;
11119
11120   // special case: empty space customization only available in R'n'D game engine
11121   if (element == EL_EMPTY_SPACE && level.game_engine_type != GAME_ENGINE_TYPE_RND)
11122     return FALSE;
11123
11124   // special case: BD style rock customization only available in BD game engine
11125   if (element == EL_BD_ROCK && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11126     return FALSE;
11127
11128   if (IS_GEM(element) ||
11129       IS_CUSTOM_ELEMENT(element) ||
11130       IS_GROUP_ELEMENT(element) ||
11131       IS_EMPTY_ELEMENT(element) ||
11132       IS_BALLOON_ELEMENT(element) ||
11133       IS_ENVELOPE(element) ||
11134       IS_MM_ENVELOPE(element) ||
11135       IS_MM_MCDUFFIN(element) ||
11136       IS_DF_LASER(element) ||
11137       IS_PLAYER_ELEMENT(element) ||
11138       IS_BD_PLAYER_ELEMENT(element) ||
11139       IS_BD_EXPANDABLE_WALL(properties_element) ||
11140       IS_BD_CONVEYOR_BELT(properties_element) ||
11141       IS_BD_CONVEYOR_BELT_SWITCH(properties_element) ||
11142       IS_SOKOBAN_OBJECT_OR_FIELD(element) ||
11143       HAS_EDITOR_CONTENT(element) ||
11144       CAN_GROW(element) ||
11145       COULD_MOVE_INTO_ACID(element) ||
11146       MAYBE_DONT_COLLIDE_WITH(element) ||
11147       element == EL_BD_ROCK ||
11148       element == EL_BD_MEGA_ROCK ||
11149       element == EL_BD_SWEET ||
11150       element == EL_BD_VOODOO_DOLL ||
11151       element == EL_BD_WATER)
11152   {
11153     return TRUE;
11154   }
11155   else
11156   {
11157     for (i = 0; elements_with_counter[i].element != -1; i++)
11158       if (elements_with_counter[i].element == element)
11159         return TRUE;
11160   }
11161
11162   return FALSE;
11163 }
11164
11165 static void SetAutomaticNumberOfGemsNeeded(void)
11166 {
11167   int x, y;
11168
11169   if (!level.auto_count_gems)
11170     return;
11171
11172   level.gems_needed = 0;
11173
11174   for (x = 0; x < lev_fieldx; x++)
11175   {
11176     for (y = 0; y < lev_fieldy; y++)
11177     {
11178       int element = Tile[x][y];
11179
11180       switch (element)
11181       {
11182         case EL_EMERALD:
11183         case EL_EMERALD_YELLOW:
11184         case EL_EMERALD_RED:
11185         case EL_EMERALD_PURPLE:
11186         case EL_BD_DIAMOND:
11187         case EL_WALL_EMERALD:
11188         case EL_WALL_EMERALD_YELLOW:
11189         case EL_WALL_EMERALD_RED:
11190         case EL_WALL_EMERALD_PURPLE:
11191         case EL_WALL_BD_DIAMOND:
11192         case EL_NUT:
11193         case EL_SP_INFOTRON:
11194         case EL_MM_KETTLE:
11195         case EL_DF_CELL:
11196           level.gems_needed++;
11197           break;
11198
11199         case EL_DIAMOND:
11200         case EL_WALL_DIAMOND:
11201           level.gems_needed += 3;
11202           break;
11203
11204         case EL_PEARL:
11205         case EL_WALL_PEARL:
11206           level.gems_needed += 5;
11207           break;
11208
11209         case EL_CRYSTAL:
11210         case EL_WALL_CRYSTAL:
11211           level.gems_needed += 8;
11212           break;
11213
11214         default:
11215           break;
11216       }
11217     }
11218   }
11219
11220   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
11221 }
11222
11223 static void DrawPropertiesConfig(void)
11224 {
11225   boolean draw_footer_line = FALSE;
11226   int max_num_element_counters = 4;
11227   int num_element_counters = 0;
11228   int i;
11229
11230   if (!checkPropertiesConfig(properties_element))
11231   {
11232     int xpos = ED_ELEMENT_SETTINGS_X(0);
11233     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
11234
11235     PrintInfoText("No configuration options available.", FONT_TEXT_1, xpos, ypos);
11236
11237     return;
11238   }
11239
11240   // check if there are elements where a value can be chosen for
11241   for (i = 0; elements_with_counter[i].element != -1; i++)
11242   {
11243     if (elements_with_counter[i].element != properties_element)
11244       continue;
11245
11246     // special case: score for extra diamonds only available in BD game engine
11247     if (elements_with_counter[i].element == EL_BD_DIAMOND &&
11248         elements_with_counter[i].value == &level.score[SC_DIAMOND_EXTRA] &&
11249         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11250       continue;
11251
11252     // special case: some amoeba counters only available in BD game engine
11253     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11254         elements_with_counter[i].value != &level.amoeba_speed &&
11255         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11256       continue;
11257
11258     // special case: some amoeba counters only available in R'n'D game engine
11259     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11260         elements_with_counter[i].value == &level.amoeba_speed &&
11261         level.game_engine_type == GAME_ENGINE_TYPE_BD)
11262       continue;
11263
11264     int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
11265
11266     counterbutton_info[counter_id].y =
11267       ED_ELEMENT_SETTINGS_YPOS((HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
11268                                (CAN_GROW(properties_element)                ? 1 : 0) +
11269                                (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
11270                                (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
11271                                (properties_element == EL_BD_VOODOO_DOLL     ? 4 : 0) +
11272                                (properties_element == EL_BD_SLIME           ? 1 : 0) +
11273                                (properties_element == EL_BD_ACID            ? 1 : 0) +
11274                                (properties_element == EL_BD_REPLICATOR      ? 1 : 0) +
11275                                (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
11276                                num_element_counters);
11277
11278     // special case: set amoeba counters for BD game engine separately
11279     if ((properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD) ||
11280         (properties_element == EL_BD_AMOEBA_2))
11281       counterbutton_info[counter_id].y = ED_ELEMENT_SETTINGS_YPOS(3 + num_element_counters);
11282
11283     counterbutton_info[counter_id].value      = elements_with_counter[i].value;
11284     counterbutton_info[counter_id].text_right = elements_with_counter[i].text;
11285     counterbutton_info[counter_id].min_value  = elements_with_counter[i].min_value;
11286     counterbutton_info[counter_id].max_value  = elements_with_counter[i].max_value;
11287
11288     // default: counter values between 0 and 999
11289     if (counterbutton_info[counter_id].max_value == 0)
11290       counterbutton_info[counter_id].max_value = 999;
11291
11292     MapCounterButtons(counter_id);
11293
11294     num_element_counters++;
11295     if (num_element_counters >= max_num_element_counters)
11296       break;
11297   }
11298
11299   if (HAS_EDITOR_CONTENT(properties_element))
11300   {
11301     // draw stickybutton gadget
11302     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11303
11304     if (properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11305     {
11306       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11307       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11308
11309       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG);
11310       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED);
11311     }
11312     else if (properties_element == EL_BD_AMOEBA_2)
11313     {
11314       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11315       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11316       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA);
11317
11318       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG);
11319       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED);
11320       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING);
11321       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE);
11322     }
11323     else if (IS_AMOEBOID(properties_element))
11324       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
11325     else if (properties_element == EL_BD_ACID)
11326     {
11327       MapDrawingArea(ED_DRAWING_ID_BD_ACID_EATS_ELEMENT);
11328       MapDrawingArea(ED_DRAWING_ID_BD_ACID_TURNS_TO_ELEMENT);
11329     }
11330     else if (IS_BD_BITER(properties_element))
11331     {
11332       MapDrawingArea(ED_DRAWING_ID_BD_BITER_EATS_ELEMENT);
11333     }
11334     else if (properties_element == EL_BD_BLADDER)
11335     {
11336       MapDrawingArea(ED_DRAWING_ID_BD_BLADDER_CONVERTS_BY_ELEMENT);
11337     }
11338     else if (properties_element == EL_YAMYAM ||
11339              properties_element == EL_YAMYAM_LEFT ||
11340              properties_element == EL_YAMYAM_RIGHT ||
11341              properties_element == EL_YAMYAM_UP ||
11342              properties_element == EL_YAMYAM_DOWN)
11343       DrawYamYamContentAreas();
11344     else if (properties_element == EL_EMC_MAGIC_BALL)
11345     {
11346       DrawMagicBallContentAreas();
11347
11348       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
11349       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
11350     }
11351     else if (properties_element == EL_EMC_ANDROID)
11352       DrawAndroidElementArea();
11353     else if (properties_element == EL_MM_GRAY_BALL)
11354     {
11355       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
11356       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
11357       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
11358       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
11359
11360       DrawMMBallContentArea();
11361     }
11362   }
11363
11364   if (IS_PLAYER_ELEMENT(properties_element))
11365   {
11366     int player_nr = GET_PLAYER_NR(properties_element);
11367
11368     // these properties can be set for every player individually
11369
11370     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11371     {
11372       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
11373         &level.start_element[player_nr];
11374       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
11375         &level.artwork_element[player_nr];
11376       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
11377         &level.explosion_element[player_nr];
11378
11379       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
11380         &level.use_start_element[player_nr];
11381       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
11382         &level.use_artwork_element[player_nr];
11383       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
11384         &level.use_explosion_element[player_nr];
11385       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
11386         &level.initial_player_gravity[player_nr];
11387
11388       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
11389         &level.initial_player_stepsize[player_nr];
11390
11391       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
11392       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
11393                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
11394                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
11395       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
11396       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
11397       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
11398       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
11399       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
11400       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
11401       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
11402       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
11403       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
11404       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
11405       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
11406
11407       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
11408       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
11409       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
11410
11411       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
11412     }
11413     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11414     {
11415       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
11416         &level.initial_inventory_content[player_nr][0];
11417
11418       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
11419         &level.initial_inventory_size[player_nr];
11420
11421       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
11422         &level.use_initial_inventory[player_nr];
11423
11424       // draw checkbutton gadgets
11425       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
11426       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
11427       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
11428
11429       // draw counter gadgets
11430       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
11431
11432       // draw drawing area gadgets
11433       DrawPlayerInitialInventoryArea(properties_element);
11434     }
11435   }
11436
11437   if (IS_BD_PLAYER_ELEMENT(properties_element))
11438   {
11439     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11440       ED_ELEMENT_SETTINGS_YPOS(2);
11441     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11442       ED_ELEMENT_SETTINGS_YPOS(3);
11443     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11444       ED_ELEMENT_SETTINGS_YPOS(4);
11445
11446     // draw checkbutton gadgets
11447     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS);
11448     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE);
11449     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11450
11451     // draw counter gadgets
11452     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11453     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11454
11455     // draw drawing area gadgets
11456     MapDrawingArea(ED_DRAWING_ID_BD_SNAP_ELEMENT);
11457   }
11458
11459   if (properties_element == EL_BD_ROCK && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11460   {
11461     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11462       ED_ELEMENT_SETTINGS_YPOS(0);
11463     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11464       ED_ELEMENT_SETTINGS_YPOS(1);
11465
11466     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11467     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11468   }
11469
11470   if (properties_element == EL_BD_MEGA_ROCK ||
11471       properties_element == EL_BD_SWEET)
11472   {
11473     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11474       ED_ELEMENT_SETTINGS_YPOS(0);
11475     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11476       ED_ELEMENT_SETTINGS_YPOS(1);
11477
11478     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11479     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11480   }
11481
11482   if (properties_element == EL_BD_VOODOO_DOLL)
11483   {
11484     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS);
11485     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER);
11486     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK);
11487     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION);
11488   }
11489
11490   if (properties_element == EL_BD_SLIME)
11491   {
11492     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE);
11493   }
11494
11495   if (properties_element == EL_BD_MAGIC_WALL)
11496   {
11497     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING);
11498     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA);
11499   }
11500
11501   if (IS_BD_EXPANDABLE_WALL(properties_element))
11502   {
11503     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_CHANGE_EXPANDING_WALL);
11504   }
11505
11506   if (properties_element == EL_BD_REPLICATOR)
11507   {
11508     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_REPLICATORS_ACTIVE);
11509   }
11510
11511   if (IS_BD_CONVEYOR_BELT(properties_element) ||
11512       IS_BD_CONVEYOR_BELT_SWITCH(properties_element))
11513   {
11514     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_ACTIVE);
11515     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_CONVEYOR_BELTS_CHANGED);
11516   }
11517
11518   if (properties_element == EL_BD_WATER)
11519   {
11520     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_WATER_CANNOT_FLOW_DOWN);
11521   }
11522
11523   // special case: slippery walls option for gems only available in R'n'D game engine
11524   if (IS_GEM(properties_element) && level.game_engine_type == GAME_ENGINE_TYPE_RND)
11525     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
11526
11527   if (properties_element == EL_EM_DYNAMITE)
11528     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
11529
11530   if (COULD_MOVE_INTO_ACID(properties_element) &&
11531       !IS_PLAYER_ELEMENT(properties_element) &&
11532       (!IS_CUSTOM_ELEMENT(properties_element) ||
11533        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
11534   {
11535     // set position for checkbutton for "can move into acid"
11536     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
11537       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
11538     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
11539       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
11540                                IS_BALLOON_ELEMENT(properties_element) ||
11541                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11542
11543     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
11544   }
11545
11546   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
11547     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
11548
11549   if (properties_element == EL_SPRING ||
11550       properties_element == EL_SPRING_LEFT ||
11551       properties_element == EL_SPRING_RIGHT)
11552     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
11553
11554   if (properties_element == EL_TIME_ORB_FULL)
11555     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
11556
11557   if (properties_element == EL_GAME_OF_LIFE ||
11558       properties_element == EL_BIOMAZE)
11559     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
11560
11561   if (CAN_GROW(properties_element) && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11562   {
11563     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
11564       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11565
11566     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
11567   }
11568
11569   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
11570     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
11571
11572   if (properties_element == EL_SOKOBAN_OBJECT)
11573     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
11574
11575   if (properties_element == EL_SOKOBAN_OBJECT ||
11576       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
11577       properties_element == EL_SOKOBAN_FIELD_FULL)
11578   {
11579     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
11580       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
11581                                0 : 1);
11582
11583     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
11584   }
11585
11586   if (IS_BALLOON_ELEMENT(properties_element))
11587     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
11588
11589   if (IS_ENVELOPE(properties_element) ||
11590       IS_MM_ENVELOPE(properties_element))
11591   {
11592     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
11593     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
11594     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
11595     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
11596     int envelope_nr = ENVELOPE_NR(properties_element);
11597
11598     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
11599     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
11600
11601     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
11602     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
11603
11604     // display counter to choose size of envelope text area
11605     MapCounterButtons(counter1_id);
11606     MapCounterButtons(counter2_id);
11607
11608     // display checkbuttons to choose auto-wrap and alignment properties
11609     MapCheckbuttonGadget(button1_id);
11610     MapCheckbuttonGadget(button2_id);
11611
11612     DrawEnvelopeTextArea(envelope_nr);
11613   }
11614
11615   if (IS_MM_MCDUFFIN(properties_element))
11616   {
11617     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
11618     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
11619     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
11620   }
11621
11622   if (IS_DF_LASER(properties_element))
11623   {
11624     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
11625     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
11626     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
11627   }
11628
11629   if (IS_CUSTOM_ELEMENT(properties_element))
11630   {
11631     // draw stickybutton gadget
11632     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11633
11634     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11635     {
11636       // draw checkbutton gadgets
11637       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
11638            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
11639         MapCheckbuttonGadget(i);
11640
11641       // draw counter gadgets
11642       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
11643            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
11644         MapCounterButtons(i);
11645
11646       // draw selectbox gadgets
11647       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
11648            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
11649         MapSelectboxGadget(i);
11650
11651       // draw textbutton gadgets
11652       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11653
11654       // draw text input gadgets
11655       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11656
11657       // draw drawing area gadgets
11658       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11659
11660       draw_footer_line = TRUE;
11661     }
11662     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11663     {
11664       // draw checkbutton gadgets
11665       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
11666            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
11667         MapCheckbuttonGadget(i);
11668
11669       // draw counter gadgets
11670       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
11671            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
11672         MapCounterButtons(i);
11673
11674       // draw selectbox gadgets
11675       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
11676            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
11677         MapSelectboxGadget(i);
11678
11679       // draw drawing area gadgets
11680       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
11681       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
11682       DrawCustomContentArea();
11683     }
11684   }
11685   else if (IS_GROUP_ELEMENT(properties_element))
11686   {
11687     // draw stickybutton gadget
11688     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11689
11690     // draw checkbutton gadgets
11691     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11692     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11693
11694     // draw counter gadgets
11695     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
11696
11697     // draw selectbox gadgets
11698     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
11699
11700     // draw textbutton gadgets
11701     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11702
11703     // draw drawing area gadgets
11704     DrawGroupElementArea();
11705
11706     // draw text input gadgets
11707     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11708
11709     // draw drawing area gadgets
11710     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11711
11712     draw_footer_line = TRUE;
11713   }
11714   else if (IS_EMPTY_ELEMENT(properties_element))
11715   {
11716     // draw stickybutton gadget
11717     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11718
11719     // draw checkbutton gadgets
11720     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11721     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11722
11723     // draw textbutton gadgets
11724     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11725
11726     // draw drawing area gadgets
11727     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11728
11729     draw_footer_line = TRUE;
11730   }
11731
11732   // draw little footer border line above CE/GE use/save template gadgets
11733   if (draw_footer_line)
11734   {
11735     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
11736     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
11737     int gd_x = gd->x + gd_gi1->border.width / 2;
11738     int gd_y = gd->y + gd_gi1->height - 1;
11739     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
11740
11741     if (tab_color != BLACK_PIXEL)               // black => transparent
11742       FillRectangle(drawto,
11743                     SX + ED_ELEMENT_SETTINGS_X(0),
11744                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
11745                     ED_TAB_BAR_HEIGHT,
11746                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
11747   }
11748 }
11749
11750 static void DrawPropertiesChangeDrawingAreas(void)
11751 {
11752   if (IS_CUSTOM_ELEMENT(properties_element))
11753   {
11754     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
11755     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
11756     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
11757
11758     DrawCustomChangeContentArea();
11759   }
11760
11761   redraw_mask |= REDRAW_FIELD;
11762 }
11763
11764 static void DrawPropertiesChange(void)
11765 {
11766   int i;
11767
11768   // needed to initially set selectbox options for special action options
11769   setSelectboxSpecialActionOptions();
11770
11771   // draw stickybutton gadget
11772   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11773
11774   // draw checkbutton gadgets
11775   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
11776        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
11777     MapCheckbuttonGadget(i);
11778
11779   // draw counter gadgets
11780   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
11781        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
11782     MapCounterButtons(i);
11783
11784   // draw selectbox gadgets
11785   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
11786        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
11787     MapSelectboxGadget(i);
11788
11789   // draw textbutton gadgets
11790   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
11791        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
11792     MapTextbuttonGadget(i);
11793
11794   // draw graphicbutton gadgets
11795   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
11796        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
11797     MapGraphicbuttonGadget(i);
11798
11799   // draw drawing area gadgets
11800   DrawPropertiesChangeDrawingAreas();
11801 }
11802
11803 static void DrawEditorElementAnimation(int x, int y)
11804 {
11805   int graphic = el2img(properties_element);
11806   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
11807                custom_element.ce_value_fixed_initial :
11808                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
11809                custom_element.collect_score_initial : FrameCounter);
11810
11811   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
11812 }
11813
11814 static void DrawEditorElementName(int x, int y, int font_nr)
11815 {
11816   char *element_name = getElementInfoText(properties_element);
11817   int font_width = getFontWidth(font_nr);
11818   int font_height = getFontHeight(font_nr);
11819   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
11820   int max_chars_per_line = max_text_width / font_width;
11821
11822   if (strlen(element_name) <= max_chars_per_line)
11823     DrawTextS(x, y, font_nr, element_name);
11824   else
11825   {
11826     char buffer[max_chars_per_line + 1];
11827     int next_pos = max_chars_per_line;
11828
11829     strncpy(buffer, element_name, max_chars_per_line);
11830     buffer[max_chars_per_line] = '\0';
11831
11832     if (element_name[max_chars_per_line] == ' ')
11833       next_pos++;
11834     else
11835     {
11836       int i;
11837
11838       for (i = max_chars_per_line - 1; i >= 0; i--)
11839         if (buffer[i] == ' ')
11840           break;
11841
11842       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
11843       {
11844         buffer[i] = '\0';
11845         next_pos = i + 1;
11846       }
11847     }
11848
11849     DrawTextS(x, y - font_height / 2, font_nr, buffer);
11850
11851     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
11852     buffer[max_chars_per_line] = '\0';
11853
11854     DrawTextS(x, y + font_height / 2, font_nr, buffer);
11855   }
11856 }
11857
11858 static void DrawPropertiesWindow(void)
11859 {
11860   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
11861   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
11862   int border_size = gd->border_size;
11863   int font_nr = FONT_TEXT_1;
11864   int font_height = getFontHeight(font_nr);
11865   int xoffset = TILEX + element_border + 3 * border_size;
11866   int yoffset = (TILEY - font_height) / 2;
11867   int x1 = editor.settings.element_graphic.x + element_border;
11868   int y1 = editor.settings.element_graphic.y + element_border;
11869   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
11870             editor.settings.element_name.x);
11871   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
11872             editor.settings.element_name.y);
11873   char *text = "Element Settings";
11874   int font2_nr = FONT_TITLE_1;
11875   struct MenuPosInfo *pos = &editor.settings.headline;
11876   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
11877   int sy = SY + pos->y;
11878
11879   stick_element_properties_window = FALSE;
11880
11881   // make sure that previous properties edit mode exists for this element
11882   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
11883       !IS_CUSTOM_ELEMENT(properties_element))
11884     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
11885
11886   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
11887       !IS_PLAYER_ELEMENT(properties_element) &&
11888       !IS_CUSTOM_ELEMENT(properties_element))
11889     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
11890
11891   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
11892       (IS_PLAYER_ELEMENT(properties_element) ||
11893        IS_CUSTOM_ELEMENT(properties_element)))
11894     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
11895
11896   CopyElementPropertiesToEditor(properties_element);
11897
11898   UnmapLevelEditorFieldGadgets();
11899   UnmapLevelEditorToolboxDrawingGadgets();
11900   UnmapLevelEditorToolboxCustomGadgets();
11901
11902   MapLevelEditorToolboxCustomGadgetsIfNeeded();
11903
11904   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11905   ClearField();
11906
11907   DrawText(sx, sy, text, font2_nr);
11908
11909   FrameCounter = 0;     // restart animation frame counter
11910
11911   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
11912   DrawEditorElementAnimation(SX + x1, SY + y1);
11913   DrawEditorElementName(x2, y2, font_nr);
11914
11915   DrawPropertiesTabulatorGadgets();
11916
11917   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
11918     DrawPropertiesInfo();
11919   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
11920     DrawPropertiesChange();
11921   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
11922     DrawPropertiesConfig();
11923 }
11924
11925 static void DrawPaletteWindow(void)
11926 {
11927   int i;
11928
11929   UnmapLevelEditorFieldGadgets();
11930
11931   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11932   ClearField();
11933
11934   // map buttons to select elements
11935   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
11936     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
11937   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
11938   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
11939   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
11940 }
11941
11942 static void UpdateCustomElementGraphicGadgets(void)
11943 {
11944   int i;
11945
11946   InitElementPropertiesGfxElement();
11947
11948   ModifyEditorElementList();
11949   RedrawDrawingElements();
11950
11951   // force redraw of all mapped drawing area gadgets
11952   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
11953   {
11954     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
11955
11956     if (gi->mapped)
11957       MapDrawingArea(i);
11958   }
11959 }
11960
11961 static int getOpenDirectionFromTube(int element)
11962 {
11963   switch (element)
11964   {
11965     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
11966     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
11967     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
11968     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
11969     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
11970     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
11971     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
11972     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
11973     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
11974     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
11975     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
11976   }
11977
11978   return MV_NONE;
11979 }
11980
11981 static int getTubeFromOpenDirection(int direction)
11982 {
11983   switch (direction)
11984   {
11985     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
11986     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
11987     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
11988     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
11989     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
11990     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
11991     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
11992     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
11993     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
11994     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
11995     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
11996
11997     // if only one direction, fall back to simple tube with that direction
11998     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
11999     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
12000     case (MV_UP):                       return EL_TUBE_VERTICAL;
12001     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
12002   }
12003
12004   return EL_EMPTY;
12005 }
12006
12007 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
12008 {
12009   int element_new = getTubeFromOpenDirection(direction);
12010
12011   return (element_new != EL_EMPTY ? element_new : element_old);
12012 }
12013
12014 static int getOpenDirectionFromBelt(int element)
12015 {
12016   int belt_dir = getBeltDirFromBeltElement(element);
12017
12018   return (belt_dir == MV_LEFT ? MV_RIGHT :
12019           belt_dir == MV_RIGHT ? MV_LEFT :
12020           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
12021 }
12022
12023 static int getBeltFromNrAndOpenDirection(int nr, int direction)
12024 {
12025   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
12026                   direction == MV_RIGHT ? MV_LEFT :
12027                   direction == MV_HORIZONTAL ? MV_NONE : direction);
12028
12029   if (direction == MV_NONE)
12030     return EL_EMPTY;
12031
12032   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
12033 }
12034
12035 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
12036                                                  int element_old)
12037 {
12038   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
12039
12040   return (element_new != EL_EMPTY ? element_new : element_old);
12041 }
12042
12043 static int getOpenDirectionFromPool(int element)
12044 {
12045   switch (element)
12046   {
12047     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
12048     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
12049     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
12050     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
12051     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
12052     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
12053   }
12054
12055   return MV_NONE;
12056 }
12057
12058 static int getPoolFromOpenDirection(int direction)
12059 {
12060   switch (direction)
12061   {
12062     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
12063     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
12064     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
12065     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
12066     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
12067     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
12068   }
12069
12070   return EL_EMPTY;
12071 }
12072
12073 static int getPoolFromOpenDirectionExt(int direction, int help_element)
12074 {
12075   int element = getPoolFromOpenDirection(direction);
12076   int help_direction = getOpenDirectionFromPool(help_element);
12077
12078   if (element == EL_EMPTY)
12079   {
12080     int help_direction_vertical = help_direction & MV_VERTICAL;
12081
12082     element = getPoolFromOpenDirection(direction | help_direction_vertical);
12083   }
12084
12085   if (element == EL_EMPTY)
12086   {
12087     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
12088
12089     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
12090   }
12091
12092   return element;
12093 }
12094
12095 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
12096 {
12097   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
12098
12099   return (element_new != EL_EMPTY ? element_new : element_old);
12100 }
12101
12102 static int getOpenDirectionFromPillar(int element)
12103 {
12104   switch (element)
12105   {
12106     case EL_EMC_WALL_1:                 return (MV_DOWN);
12107     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
12108     case EL_EMC_WALL_3:                 return (MV_UP);
12109   }
12110
12111   return MV_NONE;
12112 }
12113
12114 static int getPillarFromOpenDirection(int direction)
12115 {
12116   switch (direction)
12117   {
12118     case (MV_DOWN):                     return EL_EMC_WALL_1;
12119     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
12120     case (MV_UP):                       return EL_EMC_WALL_3;
12121   }
12122
12123   return EL_EMPTY;
12124 }
12125
12126 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
12127 {
12128   int element_new = getPillarFromOpenDirection(direction);
12129
12130   return (element_new != EL_EMPTY ? element_new : element_old);
12131 }
12132
12133 static int getOpenDirectionFromSteel2(int element)
12134 {
12135   switch (element)
12136   {
12137     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
12138     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
12139     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
12140     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
12141     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
12142     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
12143     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
12144     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
12145   }
12146
12147   return MV_NONE;
12148 }
12149
12150 static int getSteel2FromOpenDirection(int direction)
12151 {
12152   switch (direction)
12153   {
12154     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
12155     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
12156     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
12157     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
12158     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
12159     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
12160     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
12161     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
12162   }
12163
12164   return EL_EMPTY;
12165 }
12166
12167 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
12168 {
12169   int element_new = getSteel2FromOpenDirection(direction);
12170
12171   return (element_new != EL_EMPTY ? element_new : element_old);
12172 }
12173
12174 static int getOpenDirectionFromChip(int element)
12175 {
12176   switch (element)
12177   {
12178     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
12179     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
12180     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
12181     case EL_SP_CHIP_TOP:                return (MV_DOWN);
12182     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
12183   }
12184
12185   return MV_NONE;
12186 }
12187
12188 static int getChipFromOpenDirection(int direction)
12189 {
12190   switch (direction)
12191   {
12192     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
12193     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
12194     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
12195     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
12196     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
12197   }
12198
12199   return EL_EMPTY;
12200 }
12201
12202 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
12203 {
12204   int element_new = getChipFromOpenDirection(direction);
12205
12206   return (element_new != EL_EMPTY ? element_new : element_old);
12207 }
12208
12209 static int getClosedTube(int x, int y)
12210 {
12211   struct XY *xy = xy_directions;
12212   int element_old = IntelliDrawBuffer[x][y];
12213   int direction_old = getOpenDirectionFromTube(element_old);
12214   int direction_new = MV_NONE;
12215   int i;
12216
12217   for (i = 0; i < NUM_DIRECTIONS; i++)
12218   {
12219     int xx = x + xy[i].x;
12220     int yy = y + xy[i].y;
12221     int dir = MV_DIR_FROM_BIT(i);
12222     int dir_opposite = MV_DIR_OPPOSITE(dir);
12223
12224     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
12225         (direction_old & dir) &&
12226         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12227       direction_new |= dir;
12228   }
12229
12230   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
12231 }
12232
12233 static int getClosedBelt(int x, int y)
12234 {
12235   struct XY *xy = xy_directions;
12236   int element_old = IntelliDrawBuffer[x][y];
12237   int nr = getBeltNrFromBeltElement(element_old);
12238   int direction_old = getOpenDirectionFromBelt(element_old);
12239   int direction_new = MV_NONE;
12240   int i;
12241
12242   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12243   {
12244     int xx = x + xy[i].x;
12245     int yy = y + xy[i].y;
12246     int dir = MV_DIR_FROM_BIT(i);
12247     int dir_opposite = MV_DIR_OPPOSITE(dir);
12248
12249     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
12250         (direction_old & dir) &&
12251         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12252       direction_new |= dir;
12253   }
12254
12255   return getBeltFromNrAndOpenDirection(nr, direction_new);
12256 }
12257
12258 static int getClosedPool(int x, int y)
12259 {
12260   struct XY *xy = xy_directions;
12261   int element_old = IntelliDrawBuffer[x][y];
12262   int direction_old = getOpenDirectionFromPool(element_old);
12263   int direction_new = MV_NONE;
12264   int i;
12265
12266   for (i = 0; i < NUM_DIRECTIONS; i++)
12267   {
12268     int xx = x + xy[i].x;
12269     int yy = y + xy[i].y;
12270     int dir = MV_DIR_FROM_BIT(i);
12271     int dir_opposite = MV_DIR_OPPOSITE(dir);
12272
12273     if (IN_LEV_FIELD(xx, yy) &&
12274         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
12275         (direction_old & dir) &&
12276         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12277       direction_new |= dir;
12278   }
12279
12280   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
12281 }
12282
12283 static int getClosedPillar(int x, int y)
12284 {
12285   struct XY *xy = xy_directions;
12286   int element_old = IntelliDrawBuffer[x][y];
12287   int direction_old = getOpenDirectionFromPillar(element_old);
12288   int direction_new = MV_NONE;
12289   int i;
12290
12291   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12292   {
12293     int xx = x + xy[i].x;
12294     int yy = y + xy[i].y;
12295     int dir = MV_DIR_FROM_BIT(i);
12296     int dir_opposite = MV_DIR_OPPOSITE(dir);
12297
12298     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
12299         (direction_old & dir) &&
12300         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12301       direction_new |= dir;
12302   }
12303
12304   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
12305 }
12306
12307 static int getClosedSteel2(int x, int y)
12308 {
12309   struct XY *xy = xy_directions;
12310   int element_old = IntelliDrawBuffer[x][y];
12311   int direction_old = getOpenDirectionFromSteel2(element_old);
12312   int direction_new = MV_NONE;
12313   int i;
12314
12315   for (i = 0; i < NUM_DIRECTIONS; i++)
12316   {
12317     int xx = x + xy[i].x;
12318     int yy = y + xy[i].y;
12319     int dir = MV_DIR_FROM_BIT(i);
12320     int dir_opposite = MV_DIR_OPPOSITE(dir);
12321
12322     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
12323         (direction_old & dir) &&
12324         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12325       direction_new |= dir;
12326   }
12327
12328   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
12329 }
12330
12331 static int getClosedChip(int x, int y)
12332 {
12333   struct XY *xy = xy_directions;
12334   int element_old = IntelliDrawBuffer[x][y];
12335   int direction_old = getOpenDirectionFromChip(element_old);
12336   int direction_new = MV_NONE;
12337   int i;
12338
12339   for (i = 0; i < NUM_DIRECTIONS; i++)
12340   {
12341     int xx = x + xy[i].x;
12342     int yy = y + xy[i].y;
12343     int dir = MV_DIR_FROM_BIT(i);
12344     int dir_opposite = MV_DIR_OPPOSITE(dir);
12345
12346     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
12347         (direction_old & dir) &&
12348         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12349       direction_new |= dir;
12350   }
12351
12352   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
12353 }
12354
12355 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
12356                                 boolean change_level)
12357 {
12358   int sx = x - level_xpos;
12359   int sy = y - level_ypos;
12360   int old_element = Tile[x][y];
12361   int new_element = element;
12362   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
12363   boolean draw_masked = FALSE;
12364
12365   if (IS_MM_WALL_EDITOR(element))
12366   {
12367     element = map_mm_wall_element_editor(element) | new_bitmask;
12368
12369     if (IS_MM_WALL(old_element))
12370       element |= MM_WALL_BITS(old_element);
12371
12372     if (!change_level)
12373       draw_masked = TRUE;
12374   }
12375   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
12376   {
12377     int element_changed = old_element & ~new_bitmask;
12378
12379     if (MM_WALL_BITS(element_changed) != 0)
12380       element = element_changed;
12381   }
12382
12383   IntelliDrawBuffer[x][y] = element;
12384
12385   if (change_level)
12386     Tile[x][y] = element;
12387
12388   if (IN_ED_FIELD(sx, sy))
12389   {
12390     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
12391       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
12392     else if (draw_masked)
12393       DrawEditorElementThruMask(sx, sy, element);
12394     else
12395       DrawEditorElement(sx, sy, element);
12396   }
12397 }
12398
12399 static void SetElementSimple(int x, int y, int element, boolean change_level)
12400 {
12401   SetElementSimpleExt(x, y, 0, 0, element, change_level);
12402 }
12403
12404 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
12405                                            int x2, int y2, int *element2,
12406                                            int (*close_function)(int, int),
12407                                            boolean change_level)
12408 {
12409   // set neighbour elements to newly determined connections
12410   SetElementSimple(x1, y1, *element1, change_level);
12411   SetElementSimple(x2, y2, *element2, change_level);
12412
12413   // remove all open connections of neighbour elements
12414   *element1 = close_function(x1, y1);
12415   *element2 = close_function(x2, y2);
12416
12417   // set neighbour elements to new, minimized connections
12418   SetElementSimple(x1, y1, *element1, change_level);
12419   SetElementSimple(x2, y2, *element2, change_level);
12420 }
12421
12422 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
12423                                   boolean change_level, int button)
12424 {
12425   struct XY *xy = xy_directions;
12426   static int last_x = -1;
12427   static int last_y = -1;
12428
12429   if (new_element == EL_UNDEFINED)
12430   {
12431     last_x = -1;
12432     last_y = -1;
12433
12434     return;
12435   }
12436
12437   int old_element = IntelliDrawBuffer[x][y];
12438
12439   if (IS_TUBE(new_element))
12440   {
12441     int last_element_new = EL_UNDEFINED;
12442     int direction = MV_NONE;
12443     int i;
12444
12445     // if old element is of same kind, keep all existing directions
12446     if (IS_TUBE(old_element))
12447       direction |= getOpenDirectionFromTube(old_element);
12448
12449     for (i = 0; i < NUM_DIRECTIONS; i++)
12450     {
12451       int xx = x + xy[i].x;
12452       int yy = y + xy[i].y;
12453
12454       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12455           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
12456       {
12457         int dir = MV_DIR_FROM_BIT(i);
12458         int dir_opposite = MV_DIR_OPPOSITE(dir);
12459         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12460         int last_direction_old = getOpenDirectionFromTube(last_element_old);
12461         int last_direction_new = last_direction_old | dir_opposite;
12462
12463         last_element_new = getTubeFromOpenDirection(last_direction_new);
12464
12465         direction |= dir;
12466       }
12467     }
12468
12469     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
12470
12471     if (last_element_new != EL_UNDEFINED)
12472       MergeAndCloseNeighbourElements(x, y, &new_element,
12473                                      last_x, last_y, &last_element_new,
12474                                      getClosedTube, change_level);
12475   }
12476   else if (IS_BELT(new_element))
12477   {
12478     int belt_nr = getBeltNrFromBeltElement(new_element);
12479     int last_element_new = EL_UNDEFINED;
12480     int direction = MV_NONE;
12481     int i;
12482
12483     // if old element is of same kind, keep all existing directions
12484     if (IS_BELT(old_element))
12485       direction |= getOpenDirectionFromBelt(old_element);
12486
12487     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12488     {
12489       int xx = x + xy[i].x;
12490       int yy = y + xy[i].y;
12491
12492       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12493           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
12494       {
12495         int dir = MV_DIR_FROM_BIT(i);
12496         int dir_opposite = MV_DIR_OPPOSITE(dir);
12497         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12498         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
12499         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
12500         int last_direction_new = last_direction_old | dir_opposite;
12501
12502         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
12503                                                          last_direction_new);
12504         direction |= dir;
12505       }
12506     }
12507
12508     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
12509                                                         new_element);
12510     if (last_element_new != EL_UNDEFINED)
12511       MergeAndCloseNeighbourElements(x, y, &new_element,
12512                                      last_x, last_y, &last_element_new,
12513                                      getClosedBelt, change_level);
12514   }
12515   else if (IS_ACID_POOL_OR_ACID(new_element))
12516   {
12517     int last_element_new = EL_UNDEFINED;
12518     int direction = MV_NONE;
12519     int i;
12520
12521     // if old element is of same kind, keep all existing directions
12522     if (IS_ACID_POOL_OR_ACID(old_element))
12523       direction |= getOpenDirectionFromPool(old_element);
12524
12525     for (i = 0; i < NUM_DIRECTIONS; i++)
12526     {
12527       int xx = x + xy[i].x;
12528       int yy = y + xy[i].y;
12529
12530       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12531           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
12532       {
12533         int dir = MV_DIR_FROM_BIT(i);
12534         int dir_opposite = MV_DIR_OPPOSITE(dir);
12535         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12536         int last_direction_old = getOpenDirectionFromPool(last_element_old);
12537         int last_direction_new = last_direction_old | dir_opposite;
12538
12539         last_element_new = getPoolFromOpenDirection(last_direction_new);
12540
12541         direction |= dir;
12542       }
12543     }
12544
12545     // special corrections needed for intuitively correct acid pool drawing
12546     if (last_element_new == EL_EMPTY)
12547       last_element_new = new_element;
12548     else if (last_element_new != EL_UNDEFINED)
12549       new_element = last_element_new;
12550
12551     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
12552
12553     if (last_element_new != EL_UNDEFINED)
12554       MergeAndCloseNeighbourElements(x, y, &new_element,
12555                                      last_x, last_y, &last_element_new,
12556                                      getClosedPool, change_level);
12557   }
12558   else if (IS_EMC_PILLAR(new_element))
12559   {
12560     int last_element_new = EL_UNDEFINED;
12561     int direction = MV_NONE;
12562     int i;
12563
12564     // if old element is of same kind, keep all existing directions
12565     if (IS_EMC_PILLAR(old_element))
12566       direction |= getOpenDirectionFromPillar(old_element);
12567
12568     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12569     {
12570       int xx = x + xy[i].x;
12571       int yy = y + xy[i].y;
12572
12573       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12574           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
12575       {
12576         int dir = MV_DIR_FROM_BIT(i);
12577         int dir_opposite = MV_DIR_OPPOSITE(dir);
12578         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12579         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
12580         int last_direction_new = last_direction_old | dir_opposite;
12581
12582         last_element_new = getPillarFromOpenDirection(last_direction_new);
12583
12584         direction |= dir;
12585       }
12586     }
12587
12588     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
12589
12590     if (last_element_new != EL_UNDEFINED)
12591       MergeAndCloseNeighbourElements(x, y, &new_element,
12592                                      last_x, last_y, &last_element_new,
12593                                      getClosedPillar, change_level);
12594   }
12595   else if (IS_DC_STEELWALL_2(new_element))
12596   {
12597     int last_element_new = EL_UNDEFINED;
12598     int direction = MV_NONE;
12599     int i;
12600
12601     // if old element is of same kind, keep all existing directions
12602     if (IS_DC_STEELWALL_2(old_element))
12603       direction |= getOpenDirectionFromSteel2(old_element);
12604
12605     for (i = 0; i < NUM_DIRECTIONS; i++)
12606     {
12607       int xx = x + xy[i].x;
12608       int yy = y + xy[i].y;
12609
12610       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12611           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
12612       {
12613         int dir = MV_DIR_FROM_BIT(i);
12614         int dir_opposite = MV_DIR_OPPOSITE(dir);
12615         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12616         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
12617         int last_direction_new = last_direction_old | dir_opposite;
12618
12619         last_element_new = getSteel2FromOpenDirection(last_direction_new);
12620
12621         direction |= dir;
12622       }
12623     }
12624
12625     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
12626
12627     if (last_element_new != EL_UNDEFINED)
12628       MergeAndCloseNeighbourElements(x, y, &new_element,
12629                                      last_x, last_y, &last_element_new,
12630                                      getClosedSteel2, change_level);
12631   }
12632   else if (IS_SP_CHIP(new_element))
12633   {
12634     int last_element_new = EL_UNDEFINED;
12635     int direction = MV_NONE;
12636     int i;
12637
12638     // (do not keep existing directions, regardless of kind of old element)
12639
12640     for (i = 0; i < NUM_DIRECTIONS; i++)
12641     {
12642       int xx = x + xy[i].x;
12643       int yy = y + xy[i].y;
12644
12645       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12646           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
12647       {
12648         int dir = MV_DIR_FROM_BIT(i);
12649         int dir_opposite = MV_DIR_OPPOSITE(dir);
12650         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12651         int last_direction_old = getOpenDirectionFromChip(last_element_old);
12652         int last_direction_new = last_direction_old | dir_opposite;
12653
12654         if (last_direction_old == MV_NONE)
12655         {
12656           last_element_new = getChipFromOpenDirection(last_direction_new);
12657           direction |= dir;
12658         }
12659         else if (last_direction_old & (dir | dir_opposite))
12660         {
12661           direction |= MV_DIR_OPPOSITE(last_direction_old);
12662         }
12663         else
12664         {
12665           direction |= MV_DIR_OPPOSITE(dir);
12666         }
12667       }
12668     }
12669
12670     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
12671
12672     if (last_element_new != EL_UNDEFINED)
12673       MergeAndCloseNeighbourElements(x, y, &new_element,
12674                                      last_x, last_y, &last_element_new,
12675                                      getClosedChip, change_level);
12676   }
12677   else if (IS_SP_HARDWARE_BASE(new_element))
12678   {
12679     int nr = GetSimpleRandom(6);
12680
12681     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
12682                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
12683                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
12684                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
12685                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
12686   }
12687   else if (new_element == EL_SP_HARDWARE_GREEN ||
12688            new_element == EL_SP_HARDWARE_BLUE ||
12689            new_element == EL_SP_HARDWARE_RED)
12690   {
12691     int nr = GetSimpleRandom(3);
12692
12693     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
12694                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
12695   }
12696   else if (IS_GROUP_ELEMENT(new_element))
12697   {
12698     boolean connected_drawing = FALSE;
12699     int i;
12700
12701     for (i = 0; i < NUM_DIRECTIONS; i++)
12702     {
12703       int xx = x + xy[i].x;
12704       int yy = y + xy[i].y;
12705
12706       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12707           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
12708         connected_drawing = TRUE;
12709     }
12710
12711     if (!connected_drawing)
12712       ResolveGroupElement(new_element);
12713
12714     new_element = GetElementFromGroupElement(new_element);
12715   }
12716   else if (IS_BELT_SWITCH(old_element))
12717   {
12718     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
12719     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
12720
12721     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
12722                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
12723
12724     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
12725   }
12726   else
12727   {
12728     static int swappable_elements[][2] =
12729     {
12730       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
12731       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
12732       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
12733       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
12734       { EL_EMERALD,                     EL_WALL_EMERALD                 },
12735       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
12736       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
12737       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
12738       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
12739       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
12740       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
12741       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
12742       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
12743       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
12744       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
12745       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
12746       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
12747       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
12748       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
12749       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
12750       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
12751       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
12752       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
12753       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
12754       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
12755       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
12756       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
12757       { EL_PEARL,                       EL_WALL_PEARL                   },
12758       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
12759       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
12760       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
12761       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
12762       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
12763       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
12764       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
12765       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
12766       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
12767       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
12768       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
12769       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
12770       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
12771       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
12772       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
12773       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
12774
12775       { -1,                             -1                              },
12776     };
12777     static int rotatable_elements_4[][4] =
12778     {
12779       {
12780         EL_BUG_UP,
12781         EL_BUG_RIGHT,
12782         EL_BUG_DOWN,
12783         EL_BUG_LEFT
12784       },
12785       {
12786         EL_SPACESHIP_UP,
12787         EL_SPACESHIP_RIGHT,
12788         EL_SPACESHIP_DOWN,
12789         EL_SPACESHIP_LEFT
12790       },
12791       {
12792         EL_BD_BUTTERFLY_UP,
12793         EL_BD_BUTTERFLY_RIGHT,
12794         EL_BD_BUTTERFLY_DOWN,
12795         EL_BD_BUTTERFLY_LEFT
12796       },
12797       {
12798         EL_BD_FIREFLY_UP,
12799         EL_BD_FIREFLY_RIGHT,
12800         EL_BD_FIREFLY_DOWN,
12801         EL_BD_FIREFLY_LEFT
12802       },
12803       {
12804         EL_PACMAN_UP,
12805         EL_PACMAN_RIGHT,
12806         EL_PACMAN_DOWN,
12807         EL_PACMAN_LEFT
12808       },
12809       {
12810         EL_YAMYAM_UP,
12811         EL_YAMYAM_RIGHT,
12812         EL_YAMYAM_DOWN,
12813         EL_YAMYAM_LEFT
12814       },
12815       {
12816         EL_ARROW_UP,
12817         EL_ARROW_RIGHT,
12818         EL_ARROW_DOWN,
12819         EL_ARROW_LEFT
12820       },
12821       {
12822         EL_SP_PORT_UP,
12823         EL_SP_PORT_RIGHT,
12824         EL_SP_PORT_DOWN,
12825         EL_SP_PORT_LEFT
12826       },
12827       {
12828         EL_SP_GRAVITY_PORT_UP,
12829         EL_SP_GRAVITY_PORT_RIGHT,
12830         EL_SP_GRAVITY_PORT_DOWN,
12831         EL_SP_GRAVITY_PORT_LEFT
12832       },
12833       {
12834         EL_SP_GRAVITY_ON_PORT_UP,
12835         EL_SP_GRAVITY_ON_PORT_RIGHT,
12836         EL_SP_GRAVITY_ON_PORT_DOWN,
12837         EL_SP_GRAVITY_ON_PORT_LEFT
12838       },
12839       {
12840         EL_SP_GRAVITY_OFF_PORT_UP,
12841         EL_SP_GRAVITY_OFF_PORT_RIGHT,
12842         EL_SP_GRAVITY_OFF_PORT_DOWN,
12843         EL_SP_GRAVITY_OFF_PORT_LEFT
12844       },
12845       {
12846         EL_MOLE_UP,
12847         EL_MOLE_RIGHT,
12848         EL_MOLE_DOWN,
12849         EL_MOLE_LEFT
12850       },
12851       {
12852         EL_BALLOON_SWITCH_UP,
12853         EL_BALLOON_SWITCH_RIGHT,
12854         EL_BALLOON_SWITCH_DOWN,
12855         EL_BALLOON_SWITCH_LEFT
12856       },
12857       {
12858         EL_MM_MCDUFFIN_UP,
12859         EL_MM_MCDUFFIN_RIGHT,
12860         EL_MM_MCDUFFIN_DOWN,
12861         EL_MM_MCDUFFIN_LEFT
12862       },
12863       {
12864         EL_MM_MIRROR_FIXED_1,
12865         EL_MM_MIRROR_FIXED_4,
12866         EL_MM_MIRROR_FIXED_3,
12867         EL_MM_MIRROR_FIXED_2
12868       },
12869       {
12870         EL_MM_STEEL_GRID_FIXED_1,
12871         EL_MM_STEEL_GRID_FIXED_4,
12872         EL_MM_STEEL_GRID_FIXED_2,
12873         EL_MM_STEEL_GRID_FIXED_3
12874       },
12875       {
12876         EL_MM_WOODEN_GRID_FIXED_1,
12877         EL_MM_WOODEN_GRID_FIXED_4,
12878         EL_MM_WOODEN_GRID_FIXED_2,
12879         EL_MM_WOODEN_GRID_FIXED_3
12880       },
12881       {
12882         EL_MM_POLARIZER_CROSS_1,
12883         EL_MM_POLARIZER_CROSS_4,
12884         EL_MM_POLARIZER_CROSS_3,
12885         EL_MM_POLARIZER_CROSS_2
12886       },
12887       {
12888         EL_MM_PACMAN_UP,
12889         EL_MM_PACMAN_RIGHT,
12890         EL_MM_PACMAN_DOWN,
12891         EL_MM_PACMAN_LEFT
12892       },
12893       {
12894         EL_DF_LASER_UP,
12895         EL_DF_LASER_RIGHT,
12896         EL_DF_LASER_DOWN,
12897         EL_DF_LASER_LEFT
12898       },
12899       {
12900         EL_DF_RECEIVER_UP,
12901         EL_DF_RECEIVER_RIGHT,
12902         EL_DF_RECEIVER_DOWN,
12903         EL_DF_RECEIVER_LEFT
12904       },
12905       {
12906         EL_DF_SLOPE_1,
12907         EL_DF_SLOPE_4,
12908         EL_DF_SLOPE_3,
12909         EL_DF_SLOPE_2
12910       },
12911
12912       {
12913         -1,
12914       },
12915     };
12916     static int rotatable_elements_8[][8] =
12917     {
12918       {
12919         EL_DF_STEEL_GRID_FIXED_1,
12920         EL_DF_STEEL_GRID_FIXED_8,
12921         EL_DF_STEEL_GRID_FIXED_7,
12922         EL_DF_STEEL_GRID_FIXED_6,
12923         EL_DF_STEEL_GRID_FIXED_5,
12924         EL_DF_STEEL_GRID_FIXED_4,
12925         EL_DF_STEEL_GRID_FIXED_3,
12926         EL_DF_STEEL_GRID_FIXED_2
12927       },
12928       {
12929         EL_DF_WOODEN_GRID_FIXED_1,
12930         EL_DF_WOODEN_GRID_FIXED_8,
12931         EL_DF_WOODEN_GRID_FIXED_7,
12932         EL_DF_WOODEN_GRID_FIXED_6,
12933         EL_DF_WOODEN_GRID_FIXED_5,
12934         EL_DF_WOODEN_GRID_FIXED_4,
12935         EL_DF_WOODEN_GRID_FIXED_3,
12936         EL_DF_WOODEN_GRID_FIXED_2
12937       },
12938       {
12939         EL_DF_STEEL_GRID_ROTATING_1,
12940         EL_DF_STEEL_GRID_ROTATING_8,
12941         EL_DF_STEEL_GRID_ROTATING_7,
12942         EL_DF_STEEL_GRID_ROTATING_6,
12943         EL_DF_STEEL_GRID_ROTATING_5,
12944         EL_DF_STEEL_GRID_ROTATING_4,
12945         EL_DF_STEEL_GRID_ROTATING_3,
12946         EL_DF_STEEL_GRID_ROTATING_2
12947       },
12948       {
12949         EL_DF_WOODEN_GRID_ROTATING_1,
12950         EL_DF_WOODEN_GRID_ROTATING_8,
12951         EL_DF_WOODEN_GRID_ROTATING_7,
12952         EL_DF_WOODEN_GRID_ROTATING_6,
12953         EL_DF_WOODEN_GRID_ROTATING_5,
12954         EL_DF_WOODEN_GRID_ROTATING_4,
12955         EL_DF_WOODEN_GRID_ROTATING_3,
12956         EL_DF_WOODEN_GRID_ROTATING_2
12957       },
12958
12959       {
12960         -1,
12961       },
12962     };
12963     static int rotatable_elements_16[][16] =
12964     {
12965       {
12966         EL_MM_MIRROR_1,
12967         EL_MM_MIRROR_16,
12968         EL_MM_MIRROR_15,
12969         EL_MM_MIRROR_14,
12970         EL_MM_MIRROR_13,
12971         EL_MM_MIRROR_12,
12972         EL_MM_MIRROR_11,
12973         EL_MM_MIRROR_10,
12974         EL_MM_MIRROR_9,
12975         EL_MM_MIRROR_8,
12976         EL_MM_MIRROR_7,
12977         EL_MM_MIRROR_6,
12978         EL_MM_MIRROR_5,
12979         EL_MM_MIRROR_4,
12980         EL_MM_MIRROR_3,
12981         EL_MM_MIRROR_2
12982       },
12983       {
12984         EL_MM_TELEPORTER_5,
12985         EL_MM_TELEPORTER_4,
12986         EL_MM_TELEPORTER_3,
12987         EL_MM_TELEPORTER_2,
12988         EL_MM_TELEPORTER_1,
12989         EL_MM_TELEPORTER_16,
12990         EL_MM_TELEPORTER_15,
12991         EL_MM_TELEPORTER_14,
12992         EL_MM_TELEPORTER_13,
12993         EL_MM_TELEPORTER_12,
12994         EL_MM_TELEPORTER_11,
12995         EL_MM_TELEPORTER_10,
12996         EL_MM_TELEPORTER_9,
12997         EL_MM_TELEPORTER_8,
12998         EL_MM_TELEPORTER_7,
12999         EL_MM_TELEPORTER_6
13000       },
13001       {
13002         EL_MM_TELEPORTER_RED_5,
13003         EL_MM_TELEPORTER_RED_4,
13004         EL_MM_TELEPORTER_RED_3,
13005         EL_MM_TELEPORTER_RED_2,
13006         EL_MM_TELEPORTER_RED_1,
13007         EL_MM_TELEPORTER_RED_16,
13008         EL_MM_TELEPORTER_RED_15,
13009         EL_MM_TELEPORTER_RED_14,
13010         EL_MM_TELEPORTER_RED_13,
13011         EL_MM_TELEPORTER_RED_12,
13012         EL_MM_TELEPORTER_RED_11,
13013         EL_MM_TELEPORTER_RED_10,
13014         EL_MM_TELEPORTER_RED_9,
13015         EL_MM_TELEPORTER_RED_8,
13016         EL_MM_TELEPORTER_RED_7,
13017         EL_MM_TELEPORTER_RED_6
13018       },
13019       {
13020         EL_MM_TELEPORTER_YELLOW_5,
13021         EL_MM_TELEPORTER_YELLOW_4,
13022         EL_MM_TELEPORTER_YELLOW_3,
13023         EL_MM_TELEPORTER_YELLOW_2,
13024         EL_MM_TELEPORTER_YELLOW_1,
13025         EL_MM_TELEPORTER_YELLOW_16,
13026         EL_MM_TELEPORTER_YELLOW_15,
13027         EL_MM_TELEPORTER_YELLOW_14,
13028         EL_MM_TELEPORTER_YELLOW_13,
13029         EL_MM_TELEPORTER_YELLOW_12,
13030         EL_MM_TELEPORTER_YELLOW_11,
13031         EL_MM_TELEPORTER_YELLOW_10,
13032         EL_MM_TELEPORTER_YELLOW_9,
13033         EL_MM_TELEPORTER_YELLOW_8,
13034         EL_MM_TELEPORTER_YELLOW_7,
13035         EL_MM_TELEPORTER_YELLOW_6
13036       },
13037       {
13038         EL_MM_TELEPORTER_GREEN_5,
13039         EL_MM_TELEPORTER_GREEN_4,
13040         EL_MM_TELEPORTER_GREEN_3,
13041         EL_MM_TELEPORTER_GREEN_2,
13042         EL_MM_TELEPORTER_GREEN_1,
13043         EL_MM_TELEPORTER_GREEN_16,
13044         EL_MM_TELEPORTER_GREEN_15,
13045         EL_MM_TELEPORTER_GREEN_14,
13046         EL_MM_TELEPORTER_GREEN_13,
13047         EL_MM_TELEPORTER_GREEN_12,
13048         EL_MM_TELEPORTER_GREEN_11,
13049         EL_MM_TELEPORTER_GREEN_10,
13050         EL_MM_TELEPORTER_GREEN_9,
13051         EL_MM_TELEPORTER_GREEN_8,
13052         EL_MM_TELEPORTER_GREEN_7,
13053         EL_MM_TELEPORTER_GREEN_6
13054       },
13055       {
13056         EL_MM_TELEPORTER_BLUE_5,
13057         EL_MM_TELEPORTER_BLUE_4,
13058         EL_MM_TELEPORTER_BLUE_3,
13059         EL_MM_TELEPORTER_BLUE_2,
13060         EL_MM_TELEPORTER_BLUE_1,
13061         EL_MM_TELEPORTER_BLUE_16,
13062         EL_MM_TELEPORTER_BLUE_15,
13063         EL_MM_TELEPORTER_BLUE_14,
13064         EL_MM_TELEPORTER_BLUE_13,
13065         EL_MM_TELEPORTER_BLUE_12,
13066         EL_MM_TELEPORTER_BLUE_11,
13067         EL_MM_TELEPORTER_BLUE_10,
13068         EL_MM_TELEPORTER_BLUE_9,
13069         EL_MM_TELEPORTER_BLUE_8,
13070         EL_MM_TELEPORTER_BLUE_7,
13071         EL_MM_TELEPORTER_BLUE_6
13072       },
13073       {
13074         EL_MM_POLARIZER_1,
13075         EL_MM_POLARIZER_16,
13076         EL_MM_POLARIZER_15,
13077         EL_MM_POLARIZER_14,
13078         EL_MM_POLARIZER_13,
13079         EL_MM_POLARIZER_12,
13080         EL_MM_POLARIZER_11,
13081         EL_MM_POLARIZER_10,
13082         EL_MM_POLARIZER_9,
13083         EL_MM_POLARIZER_8,
13084         EL_MM_POLARIZER_7,
13085         EL_MM_POLARIZER_6,
13086         EL_MM_POLARIZER_5,
13087         EL_MM_POLARIZER_4,
13088         EL_MM_POLARIZER_3,
13089         EL_MM_POLARIZER_2
13090       },
13091       {
13092         EL_DF_MIRROR_1,
13093         EL_DF_MIRROR_16,
13094         EL_DF_MIRROR_15,
13095         EL_DF_MIRROR_14,
13096         EL_DF_MIRROR_13,
13097         EL_DF_MIRROR_12,
13098         EL_DF_MIRROR_11,
13099         EL_DF_MIRROR_10,
13100         EL_DF_MIRROR_9,
13101         EL_DF_MIRROR_8,
13102         EL_DF_MIRROR_7,
13103         EL_DF_MIRROR_6,
13104         EL_DF_MIRROR_5,
13105         EL_DF_MIRROR_4,
13106         EL_DF_MIRROR_3,
13107         EL_DF_MIRROR_2
13108       },
13109       {
13110         EL_DF_MIRROR_ROTATING_1,
13111         EL_DF_MIRROR_ROTATING_16,
13112         EL_DF_MIRROR_ROTATING_15,
13113         EL_DF_MIRROR_ROTATING_14,
13114         EL_DF_MIRROR_ROTATING_13,
13115         EL_DF_MIRROR_ROTATING_12,
13116         EL_DF_MIRROR_ROTATING_11,
13117         EL_DF_MIRROR_ROTATING_10,
13118         EL_DF_MIRROR_ROTATING_9,
13119         EL_DF_MIRROR_ROTATING_8,
13120         EL_DF_MIRROR_ROTATING_7,
13121         EL_DF_MIRROR_ROTATING_6,
13122         EL_DF_MIRROR_ROTATING_5,
13123         EL_DF_MIRROR_ROTATING_4,
13124         EL_DF_MIRROR_ROTATING_3,
13125         EL_DF_MIRROR_ROTATING_2
13126       },
13127       {
13128         EL_DF_MIRROR_FIXED_1,
13129         EL_DF_MIRROR_FIXED_16,
13130         EL_DF_MIRROR_FIXED_15,
13131         EL_DF_MIRROR_FIXED_14,
13132         EL_DF_MIRROR_FIXED_13,
13133         EL_DF_MIRROR_FIXED_12,
13134         EL_DF_MIRROR_FIXED_11,
13135         EL_DF_MIRROR_FIXED_10,
13136         EL_DF_MIRROR_FIXED_9,
13137         EL_DF_MIRROR_FIXED_8,
13138         EL_DF_MIRROR_FIXED_7,
13139         EL_DF_MIRROR_FIXED_6,
13140         EL_DF_MIRROR_FIXED_5,
13141         EL_DF_MIRROR_FIXED_4,
13142         EL_DF_MIRROR_FIXED_3,
13143         EL_DF_MIRROR_FIXED_2
13144       },
13145
13146       {
13147         -1,
13148       },
13149     };
13150     int i, j;
13151
13152     for (i = 0; swappable_elements[i][0] != -1; i++)
13153     {
13154       int element1 = swappable_elements[i][0];
13155       int element2 = swappable_elements[i][1];
13156
13157       if (old_element == element1 || old_element == element2)
13158         new_element = (old_element == element1 ? element2 : element1);
13159     }
13160
13161     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
13162     {
13163       for (j = 0; j < 4; j++)
13164       {
13165         int element = rotatable_elements_4[i][j];
13166
13167         if (old_element == element)
13168           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
13169                          button == 2 ? rotatable_elements_4[i][0]           :
13170                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
13171                          old_element);
13172       }
13173     }
13174
13175     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
13176     {
13177       for (j = 0; j < 8; j++)
13178       {
13179         int element = rotatable_elements_8[i][j];
13180
13181         if (old_element == element)
13182           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
13183                          button == 2 ? rotatable_elements_8[i][0]           :
13184                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
13185                          old_element);
13186       }
13187     }
13188
13189     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
13190     {
13191       for (j = 0; j < 16; j++)
13192       {
13193         int element = rotatable_elements_16[i][j];
13194
13195         if (old_element == element)
13196           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
13197                          button == 2 ? rotatable_elements_16[i][0]             :
13198                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
13199                          old_element);
13200       }
13201     }
13202
13203     if (old_element != new_element)
13204     {
13205       int max_infotext_len = getMaxInfoTextLength();
13206       char infotext[MAX_OUTPUT_LINESIZE + 1];
13207
13208       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
13209       infotext[max_infotext_len] = '\0';
13210
13211       ClearEditorGadgetInfoText();
13212
13213       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
13214                 infotext);
13215     }
13216   }
13217
13218   if (IS_MM_WALL_EDITOR(new_element))
13219     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
13220   else
13221     SetElementSimple(x, y, new_element, change_level);
13222
13223   last_x = x;
13224   last_y = y;
13225 }
13226
13227 static void ResetIntelliDraw(void)
13228 {
13229   int x, y;
13230
13231   for (x = 0; x < lev_fieldx; x++)
13232     for (y = 0; y < lev_fieldy; y++)
13233       IntelliDrawBuffer[x][y] = Tile[x][y];
13234
13235   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
13236 }
13237
13238 static boolean draw_mode_hires = FALSE;
13239
13240 static boolean isHiresTileElement(int element)
13241 {
13242   return (IS_MM_WALL(element)        || element == EL_EMPTY);
13243 }
13244
13245 static boolean isHiresDrawElement(int element)
13246 {
13247   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
13248 }
13249
13250 static int numHiresTiles(int element)
13251 {
13252   if (IS_MM_WALL(element))
13253     return get_number_of_bits(MM_WALL_BITS(element));
13254
13255   return 1;
13256 }
13257
13258 static void SetDrawModeHiRes(int element)
13259 {
13260   draw_mode_hires =
13261     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13262      isHiresDrawElement(element));
13263 }
13264
13265 static boolean getDrawModeHiRes(void)
13266 {
13267   return draw_mode_hires;
13268 }
13269
13270 static int getLoResScreenPos(int pos)
13271 {
13272   return (getDrawModeHiRes() ? pos / 2 : pos);
13273 }
13274
13275 static int getLoResScreenMod(int pos)
13276 {
13277   return (getDrawModeHiRes() ? pos % 2 : 0);
13278 }
13279
13280 static void SetElementExt(int x, int y, int dx, int dy, int element,
13281                           boolean change_level, int button)
13282 {
13283   if (element < 0)
13284     SetElementSimple(x, y, Tile[x][y], change_level);
13285   else if (GetKeyModState() & KMOD_Shift)
13286     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
13287   else
13288     SetElementSimpleExt(x, y, dx, dy, element, change_level);
13289 }
13290
13291 static void SetElement(int x, int y, int element)
13292 {
13293   SetElementExt(x, y, 0, 0, element, TRUE, -1);
13294 }
13295
13296 static void SetElementButton(int x, int y, int dx, int dy, int element,
13297                              int button)
13298 {
13299   SetElementExt(x, y, dx, dy, element, TRUE, button);
13300 }
13301
13302 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
13303 {
13304   int lx = getLoResScreenPos(sx2) + level_xpos;
13305   int ly = getLoResScreenPos(sy2) + level_ypos;
13306   int dx = getLoResScreenMod(sx2);
13307   int dy = getLoResScreenMod(sy2);
13308
13309   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
13310 }
13311
13312 static void SetLevelElementHiRes(int lx2, int ly2, int element)
13313 {
13314   int lx = lx2 / 2;
13315   int ly = ly2 / 2;
13316   int dx = lx2 % 2;
13317   int dy = ly2 % 2;
13318
13319   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
13320 }
13321
13322 static int getLevelElementHiRes(int lx2, int ly2)
13323 {
13324   int lx = lx2 / 2;
13325   int ly = ly2 / 2;
13326   int dx = lx2 % 2;
13327   int dy = ly2 % 2;
13328   int element = Tile[lx][ly];
13329   unsigned int bitmask = (dx + 1) << (dy * 2);
13330
13331   if (IS_MM_WALL(element))
13332   {
13333     if (element & bitmask)
13334       return map_mm_wall_element(element);
13335     else
13336       return EL_EMPTY;
13337   }
13338
13339   return element;
13340 }
13341
13342 static void DrawLineElement(int x, int y, int element, boolean change_level)
13343 {
13344   SetElementHiRes(x, y, element, change_level);
13345 }
13346
13347 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
13348                      int element, boolean change_level)
13349 {
13350   int xsize = ABS(to_x - from_x);
13351   int ysize = ABS(to_y - from_y);
13352   int dx = (to_x < from_x ? -1 : +1);
13353   int dy = (to_y < from_y ? -1 : +1);
13354   int i;
13355
13356   if (from_y == to_y)                   // horizontal line
13357   {
13358     for (i = 0; i <= xsize; i++)
13359       DrawLineElement(from_x + i * dx, from_y, element, change_level);
13360   }
13361   else if (from_x == to_x)              // vertical line
13362   {
13363     for (i = 0; i <= ysize; i++)
13364       DrawLineElement(from_x, from_y + i * dy, element, change_level);
13365   }
13366   else                                  // diagonal line
13367   {
13368     if (ysize < xsize)                  // a < 1
13369     {
13370       float a = (float)ysize / (float)xsize;
13371
13372       for (i = 0; i <= xsize; i++)
13373       {
13374         int x = dx * i;
13375         int y = dy * (int)(a * i + 0.5);
13376
13377         DrawLineElement(from_x + x, from_y + y, element, change_level);
13378       }
13379     }
13380     else                                // a >= 1
13381     {
13382       float a = (float)xsize / (float)ysize;
13383
13384       for (i = 0; i <= ysize; i++)
13385       {
13386         int x = dx * (int)(a * i + 0.5);
13387         int y = dy * i;
13388
13389         DrawLineElement(from_x + x, from_y + y, element, change_level);
13390       }
13391     }
13392   }
13393 }
13394
13395 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
13396                     int element, boolean change_level)
13397 {
13398   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
13399   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
13400   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
13401   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
13402 }
13403
13404 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
13405                           int element, boolean change_level)
13406 {
13407   int y;
13408
13409   if (from_y > to_y)
13410     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
13411
13412   for (y = from_y; y <= to_y; y++)
13413     DrawLine(from_x, y, to_x, y, element, change_level);
13414 }
13415
13416 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
13417                        int element, boolean change_level)
13418 {
13419   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
13420   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
13421   int len_x = ABS(to_x - from_x);
13422   int len_y = ABS(to_y - from_y);
13423   int radius, x, y;
13424
13425   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
13426
13427   // not optimal (some points get drawn twice) but simple,
13428   // and fast enough for the few points we are drawing
13429
13430   for (x = 0; x <= radius; x++)
13431   {
13432     int sx, sy, sx2, sy2, lx, ly;
13433
13434     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
13435
13436     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13437     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13438     sx = getLoResScreenPos(sx2);
13439     sy = getLoResScreenPos(sy2);
13440     lx = sx + level_xpos;
13441     ly = sy + level_ypos;
13442
13443     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13444       DrawLineElement(sx2, sy2, element, change_level);
13445   }
13446
13447   for (y = 0; y <= radius; y++)
13448   {
13449     int sx, sy, sx2, sy2, lx, ly;
13450
13451     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
13452
13453     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13454     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13455     sx = getLoResScreenPos(sx2);
13456     sy = getLoResScreenPos(sy2);
13457     lx = sx + level_xpos;
13458     ly = sy + level_ypos;
13459
13460     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13461       DrawLineElement(sx2, sy2, element, change_level);
13462   }
13463 }
13464
13465 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
13466                     int element, boolean change_level)
13467 {
13468   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13469   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13470
13471   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13472 }
13473
13474 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
13475
13476 #if DRAW_CIRCLES_BUTTON_AVAILABLE
13477 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
13478                        int element, boolean change_level)
13479 {
13480   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13481   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13482   int mirror_to_x2 = from_x - (to_x2 - from_x);
13483   int mirror_to_y2 = from_y - (to_y2 - from_y);
13484
13485   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13486   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
13487   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
13488   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element, change_level);
13489 }
13490 #endif
13491
13492 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
13493 {
13494   int from_sx, from_sy;
13495   int to_sx, to_sy;
13496
13497   if (from_x > to_x)
13498     swap_numbers(&from_x, &to_x);
13499
13500   if (from_y > to_y)
13501     swap_numbers(&from_y, &to_y);
13502
13503   from_sx = SX + from_x * ed_tilesize;
13504   from_sy = SY + from_y * ed_tilesize;
13505   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
13506   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
13507
13508   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
13509   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
13510   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
13511   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
13512
13513   if (from_x == to_x && from_y == to_y)
13514     MarkTileDirty(from_x/2, from_y/2);
13515   else
13516     redraw_mask |= REDRAW_FIELD;
13517 }
13518
13519 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
13520                         int element, boolean change_level)
13521 {
13522   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
13523 }
13524
13525 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
13526                        int element, boolean change_level)
13527 {
13528   if (element == -1 || change_level)
13529     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
13530   else
13531     DrawAreaBorder(from_x, from_y, to_x, to_y);
13532 }
13533
13534 // values for CopyBrushExt()
13535 #define CB_AREA_TO_BRUSH                0
13536 #define CB_BRUSH_TO_CURSOR              1
13537 #define CB_BRUSH_TO_LEVEL               2
13538 #define CB_DELETE_OLD_CURSOR            3
13539 #define CB_DUMP_BRUSH                   4
13540 #define CB_DUMP_BRUSH_SMALL             5
13541 #define CB_CLIPBOARD_TO_BRUSH           6
13542 #define CB_BRUSH_TO_CLIPBOARD           7
13543 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
13544 #define CB_UPDATE_BRUSH_POSITION        9
13545 #define CB_FLIP_BRUSH_X                 10
13546 #define CB_FLIP_BRUSH_Y                 11
13547 #define CB_FLIP_BRUSH_XY                12
13548
13549 #define MAX_CB_PART_SIZE        10
13550 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
13551 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
13552 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
13553                                  MAX_CB_NUM_LINES *     \
13554                                  MAX_CB_PART_SIZE)
13555
13556 static int getFlippedTileExt(int map[], int element)
13557 {
13558   int i;
13559
13560   for (i = 0; map[i] != -1; i++)
13561     if (map[i] == element)
13562       return map[i ^ 1];        // get flipped element by flipping LSB of index
13563
13564   return element;
13565 }
13566
13567 static int getFlippedTileX(int element)
13568 {
13569   int map[] =
13570   {
13571     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_RIGHT,
13572     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_RIGHT,
13573     EL_BUG_LEFT,                        EL_BUG_RIGHT,
13574     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_RIGHT,
13575     EL_PACMAN_LEFT,                     EL_PACMAN_RIGHT,
13576     EL_ARROW_LEFT,                      EL_ARROW_RIGHT,
13577     EL_MOLE_LEFT,                       EL_MOLE_RIGHT,
13578     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_RIGHT,
13579     EL_YAMYAM_LEFT,                     EL_YAMYAM_RIGHT,
13580     EL_SP_PORT_LEFT,                    EL_SP_PORT_RIGHT,
13581     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_RIGHT,
13582     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_RIGHT,
13583     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_RIGHT,
13584     EL_CONVEYOR_BELT_1_LEFT,            EL_CONVEYOR_BELT_1_RIGHT,
13585     EL_CONVEYOR_BELT_2_LEFT,            EL_CONVEYOR_BELT_2_RIGHT,
13586     EL_CONVEYOR_BELT_3_LEFT,            EL_CONVEYOR_BELT_3_RIGHT,
13587     EL_CONVEYOR_BELT_4_LEFT,            EL_CONVEYOR_BELT_4_RIGHT,
13588     EL_SPRING_LEFT,                     EL_SPRING_RIGHT,
13589     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_RIGHT,
13590     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_VERTICAL_RIGHT,
13591     EL_TUBE_LEFT_UP,                    EL_TUBE_RIGHT_UP,
13592     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_DOWN,
13593     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_RIGHT,
13594     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_TOPRIGHT,
13595     EL_DC_STEELWALL_1_BOTTOMLEFT,       EL_DC_STEELWALL_1_BOTTOMRIGHT,
13596     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_TOPRIGHT_2,
13597     EL_DC_STEELWALL_1_BOTTOMLEFT_2,     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13598     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_RIGHT,
13599     EL_ACID_POOL_TOPLEFT,               EL_ACID_POOL_TOPRIGHT,
13600     EL_ACID_POOL_BOTTOMLEFT,            EL_ACID_POOL_BOTTOMRIGHT,
13601
13602     -1
13603   };
13604
13605   return getFlippedTileExt(map, element);
13606 }
13607
13608 static int getFlippedTileY(int element)
13609 {
13610   int map[] =
13611   {
13612     EL_BD_BUTTERFLY_UP,                 EL_BD_BUTTERFLY_DOWN,
13613     EL_BD_FIREFLY_UP,                   EL_BD_FIREFLY_DOWN,
13614     EL_BUG_UP,                          EL_BUG_DOWN,
13615     EL_SPACESHIP_UP,                    EL_SPACESHIP_DOWN,
13616     EL_PACMAN_UP,                       EL_PACMAN_DOWN,
13617     EL_ARROW_UP,                        EL_ARROW_DOWN,
13618     EL_MOLE_UP,                         EL_MOLE_DOWN,
13619     EL_BALLOON_SWITCH_UP,               EL_BALLOON_SWITCH_DOWN,
13620     EL_YAMYAM_UP,                       EL_YAMYAM_DOWN,
13621     EL_SP_PORT_UP,                      EL_SP_PORT_DOWN,
13622     EL_SP_GRAVITY_PORT_UP,              EL_SP_GRAVITY_PORT_DOWN,
13623     EL_SP_GRAVITY_ON_PORT_UP,           EL_SP_GRAVITY_ON_PORT_DOWN,
13624     EL_SP_GRAVITY_OFF_PORT_UP,          EL_SP_GRAVITY_OFF_PORT_DOWN,
13625     EL_SP_CHIP_TOP,                     EL_SP_CHIP_BOTTOM,
13626     EL_TUBE_HORIZONTAL_UP,              EL_TUBE_HORIZONTAL_DOWN,
13627     EL_TUBE_LEFT_UP,                    EL_TUBE_LEFT_DOWN,
13628     EL_TUBE_RIGHT_UP,                   EL_TUBE_RIGHT_DOWN,
13629     EL_DC_STEELWALL_1_TOP,              EL_DC_STEELWALL_1_BOTTOM,
13630     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_BOTTOMLEFT,
13631     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMRIGHT,
13632     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13633     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13634     EL_DC_STEELWALL_2_TOP,              EL_DC_STEELWALL_2_BOTTOM,
13635     EL_EMC_WALL_1,                      EL_EMC_WALL_3,
13636
13637     -1
13638   };
13639
13640   return getFlippedTileExt(map, element);
13641 }
13642
13643 static int getFlippedTileXY(int element)
13644 {
13645   int map[] =
13646   {
13647     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_UP,
13648     EL_BD_BUTTERFLY_RIGHT,              EL_BD_BUTTERFLY_DOWN,
13649     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_UP,
13650     EL_BD_FIREFLY_RIGHT,                EL_BD_FIREFLY_DOWN,
13651     EL_BUG_LEFT,                        EL_BUG_UP,
13652     EL_BUG_RIGHT,                       EL_BUG_DOWN,
13653     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_UP,
13654     EL_SPACESHIP_RIGHT,                 EL_SPACESHIP_DOWN,
13655     EL_PACMAN_LEFT,                     EL_PACMAN_UP,
13656     EL_PACMAN_RIGHT,                    EL_PACMAN_DOWN,
13657     EL_ARROW_LEFT,                      EL_ARROW_UP,
13658     EL_ARROW_RIGHT,                     EL_ARROW_DOWN,
13659     EL_MOLE_LEFT,                       EL_MOLE_UP,
13660     EL_MOLE_RIGHT,                      EL_MOLE_DOWN,
13661     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_UP,
13662     EL_BALLOON_SWITCH_RIGHT,            EL_BALLOON_SWITCH_DOWN,
13663     EL_YAMYAM_LEFT,                     EL_YAMYAM_UP,
13664     EL_YAMYAM_RIGHT,                    EL_YAMYAM_DOWN,
13665     EL_SP_PORT_LEFT,                    EL_SP_PORT_UP,
13666     EL_SP_PORT_RIGHT,                   EL_SP_PORT_DOWN,
13667     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_UP,
13668     EL_SP_GRAVITY_PORT_RIGHT,           EL_SP_GRAVITY_PORT_DOWN,
13669     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_UP,
13670     EL_SP_GRAVITY_ON_PORT_RIGHT,        EL_SP_GRAVITY_ON_PORT_DOWN,
13671     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_UP,
13672     EL_SP_GRAVITY_OFF_PORT_RIGHT,       EL_SP_GRAVITY_OFF_PORT_DOWN,
13673     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_TOP,
13674     EL_SP_CHIP_RIGHT,                   EL_SP_CHIP_BOTTOM,
13675     EL_TUBE_VERTICAL,                   EL_TUBE_HORIZONTAL,
13676     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_HORIZONTAL_UP,
13677     EL_TUBE_VERTICAL_RIGHT,             EL_TUBE_HORIZONTAL_DOWN,
13678     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_UP,
13679     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_TOP,
13680     EL_DC_STEELWALL_1_RIGHT,            EL_DC_STEELWALL_1_BOTTOM,
13681     EL_DC_STEELWALL_1_HORIZONTAL,       EL_DC_STEELWALL_1_VERTICAL,
13682     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMLEFT,
13683     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13684     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_TOP,
13685     EL_DC_STEELWALL_2_RIGHT,            EL_DC_STEELWALL_2_BOTTOM,
13686     EL_DC_STEELWALL_2_HORIZONTAL,       EL_DC_STEELWALL_2_VERTICAL,
13687     EL_EXPANDABLE_WALL_HORIZONTAL,      EL_EXPANDABLE_WALL_VERTICAL,
13688     EL_EXPANDABLE_STEELWALL_HORIZONTAL, EL_EXPANDABLE_STEELWALL_VERTICAL,
13689
13690     -1
13691   };
13692
13693   return getFlippedTileExt(map, element);
13694 }
13695
13696 static int getFlippedTile(int element, int mode)
13697 {
13698   if (IS_MM_ELEMENT(element))
13699   {
13700     // get MM game element
13701     element = map_element_RND_to_MM(element);
13702
13703     // get flipped game element
13704     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX_MM(element) :
13705                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY_MM(element) :
13706                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY_MM(element) :
13707                element);
13708
13709     // get RND game element again
13710     element = map_element_MM_to_RND(element);
13711   }
13712   else
13713   {
13714     // get flipped game element
13715     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX(element) :
13716                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY(element) :
13717                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY(element) :
13718                element);
13719   }
13720
13721   return element;
13722 }
13723
13724 static void SwapFlippedTiles(short *tile1, short *tile2, int mode)
13725 {
13726   // flip tiles
13727   short tile1_flipped = getFlippedTile(*tile1, mode);
13728   short tile2_flipped = getFlippedTile(*tile2, mode);
13729
13730   // swap tiles
13731   *tile1 = tile2_flipped;
13732   *tile2 = tile1_flipped;
13733 }
13734
13735 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
13736 {
13737   DrawLineElement(sx, sy, element, change_level);
13738 }
13739
13740 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
13741                          int button, int mode)
13742 {
13743   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
13744   static int brush_width, brush_height;
13745   static int last_cursor_x = -1, last_cursor_y = -1;
13746   static boolean delete_old_brush = FALSE;
13747   int new_element = BUTTON_ELEMENT(button);
13748   int x, y;
13749
13750   if (mode == CB_DUMP_BRUSH ||
13751       mode == CB_DUMP_BRUSH_SMALL ||
13752       mode == CB_BRUSH_TO_CLIPBOARD ||
13753       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13754   {
13755     if (edit_mode != ED_MODE_DRAWING)
13756       return;
13757
13758     char part[MAX_CB_PART_SIZE + 1] = "";
13759     char text[MAX_CB_TEXT_SIZE + 1] = "";
13760     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
13761     int height = (draw_with_brush ? brush_height : lev_fieldy);
13762     char *format = "%s%03d";
13763
13764     for (y = 0; y < height; y++)
13765       for (x = 0; x < width; x++)
13766         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
13767           format = "%s%04d";
13768
13769     for (y = 0; y < height; y++)
13770     {
13771       for (x = 0; x < width; x++)
13772       {
13773         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
13774         char *prefix = (mode == CB_DUMP_BRUSH ||
13775                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
13776
13777         if (element >= NUM_FILE_ELEMENTS)
13778           element = EL_UNKNOWN;
13779
13780         // copy brush to level sketch text buffer for the R'n'D forum:
13781         // - large tiles: `xxx or `xxxx (0x60 ASCII)
13782         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
13783         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
13784         strcat(text, part);
13785       }
13786
13787       strcat(text, "\n");
13788     }
13789
13790     if (mode == CB_BRUSH_TO_CLIPBOARD ||
13791         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13792       SDL_SetClipboardText(text);
13793     else
13794       Print("%s", text);        // print brush data to console and log file
13795
13796     return;
13797   }
13798
13799   if (mode == CB_CLIPBOARD_TO_BRUSH)
13800   {
13801     if (edit_mode != ED_MODE_DRAWING)
13802       return;
13803
13804     if (!SDL_HasClipboardText())
13805     {
13806       Request("Clipboard is empty!", REQ_CONFIRM);
13807
13808       return;
13809     }
13810
13811     boolean copy_to_brush = (draw_with_brush ||
13812                              drawing_function == GADGET_ID_GRAB_BRUSH);
13813
13814     // this will delete the old brush, if already drawing with a brush
13815     if (copy_to_brush)
13816       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
13817
13818     // initialization is required for "odd" (incomplete) clipboard content
13819     for (x = 0; x < MAX_LEV_FIELDX; x++)
13820       for (y = 0; y < MAX_LEV_FIELDY; y++)
13821         brush_buffer[x][y] = EL_EMPTY;
13822
13823     brush_width  = 0;
13824     brush_height = 0;
13825     x = 0;
13826     y = 0;
13827
13828     char *clipboard_text = SDL_GetClipboardText();
13829     char *ptr = clipboard_text;
13830     boolean allow_new_row = FALSE;
13831     boolean stop = FALSE;
13832
13833     while (*ptr && !stop)
13834     {
13835       boolean prefix_found = FALSE;
13836       boolean start_new_row = FALSE;
13837
13838       // level sketch element number prefixes (may be multi-byte characters)
13839       char *prefix_list[] = { "`", "¸" };
13840       int i;
13841
13842       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
13843       {
13844         char *prefix = prefix_list[i];
13845
13846         // check if string is large enough for prefix
13847         if (strlen(ptr) < strlen(prefix))
13848         {
13849           stop = TRUE;
13850
13851           break;
13852         }
13853
13854         // check if string starts with prefix
13855         if (strPrefix(ptr, prefix))
13856         {
13857           ptr += strlen(prefix);
13858
13859           prefix_found = TRUE;
13860
13861           break;
13862         }
13863       }
13864
13865       // check if prefix found and followed by (at least) three digits
13866       if (prefix_found &&
13867           strlen(ptr) >= 3 &&
13868           ptr[0] >= '0' && ptr[0] <= '9' &&
13869           ptr[1] >= '0' && ptr[1] <= '9' &&
13870           ptr[2] >= '0' && ptr[2] <= '9')
13871       {
13872         int element = ((ptr[0] - '0') * 100 +
13873                        (ptr[1] - '0') * 10 +
13874                        (ptr[2] - '0'));
13875
13876         ptr += 3;
13877
13878         // level sketch element number might consist of four digits
13879         if (ptr[0] >= '0' && ptr[0] <= '9')
13880         {
13881           element = element * 10 + (ptr[0] - '0');
13882           ptr++;
13883         }
13884
13885         // remap some (historic, now obsolete) elements
13886         element = getMappedElement(element);
13887
13888         if (element >= NUM_FILE_ELEMENTS)
13889           element = EL_UNKNOWN;
13890
13891         brush_buffer[x][y] = element;
13892
13893         brush_width  = MAX(x + 1, brush_width);
13894         brush_height = MAX(y + 1, brush_height);
13895
13896         x++;
13897
13898         if (x >= MAX_LEV_FIELDX)
13899           start_new_row = TRUE;
13900
13901         allow_new_row = TRUE;
13902       }
13903       else
13904       {
13905         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
13906           start_new_row = TRUE;
13907
13908         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
13909       }
13910
13911       if (start_new_row)
13912       {
13913         x = 0;
13914         y++;
13915
13916         if (y >= MAX_LEV_FIELDY)
13917           stop = TRUE;
13918
13919         allow_new_row = FALSE;
13920       }
13921     }
13922
13923     SDL_free(clipboard_text);
13924
13925     if (brush_width == 0 || brush_height == 0)
13926     {
13927       Request("No level sketch found in clipboard!", REQ_CONFIRM);
13928
13929       return;
13930     }
13931
13932     if (copy_to_brush)
13933     {
13934       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
13935       int mx, my;
13936
13937       SDL_GetMouseState(&mx, &my);
13938
13939       // if inside drawing area, activate and draw brush at last mouse position
13940       if (mx >= gi->x && mx < gi->x + gi->width &&
13941           my >= gi->y && my < gi->y + gi->height)
13942         CopyBrushToCursor(last_cursor_x, last_cursor_y);
13943
13944       draw_with_brush = TRUE;
13945     }
13946     else
13947     {
13948       char request[100];
13949
13950       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
13951               brush_width, brush_height);
13952
13953       if (!Request(request, REQ_ASK))
13954         return;
13955
13956       for (x = 0; x < MAX_LEV_FIELDX; x++)
13957         for (y = 0; y < MAX_LEV_FIELDY; y++)
13958           Tile[x][y] = brush_buffer[x][y];
13959
13960       lev_fieldx = level.fieldx = brush_width;
13961       lev_fieldy = level.fieldy = brush_height;
13962
13963       boolean use_bd_engine = TRUE;
13964       boolean use_em_engine = TRUE;
13965       boolean use_sp_engine = TRUE;
13966       boolean use_mm_engine = TRUE;
13967
13968       for (x = 0; x < MAX_LEV_FIELDX; x++)
13969       {
13970         for (y = 0; y < MAX_LEV_FIELDY; y++)
13971         {
13972           int element = Tile[x][y];
13973
13974           if (!IS_BD_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13975             use_bd_engine = FALSE;
13976
13977           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13978             use_em_engine = FALSE;
13979
13980           if (!IS_SP_ELEMENT(element))
13981             use_sp_engine = FALSE;
13982
13983           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
13984             use_mm_engine = FALSE;
13985         }
13986       }
13987
13988       level.game_engine_type = (use_bd_engine ? GAME_ENGINE_TYPE_BD :
13989                                 use_em_engine ? GAME_ENGINE_TYPE_EM :
13990                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
13991                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
13992                                 GAME_ENGINE_TYPE_RND);
13993
13994       // update element selection list
13995       ReinitializeElementList();
13996       ModifyEditorElementList();
13997
13998       SetBorderElement();
13999
14000       DrawEditModeWindow();
14001       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14002     }
14003
14004     return;
14005   }
14006
14007   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
14008     return;
14009
14010   if (mode == CB_AREA_TO_BRUSH)
14011   {
14012     int from_lx, from_ly;
14013
14014     if (from_x > to_x)
14015       swap_numbers(&from_x, &to_x);
14016
14017     if (from_y > to_y)
14018       swap_numbers(&from_y, &to_y);
14019
14020     brush_width = to_x - from_x + 1;
14021     brush_height = to_y - from_y + 1;
14022
14023     from_lx = from_x + level_xpos;
14024     from_ly = from_y + level_ypos;
14025
14026     for (y = 0; y < brush_height; y++)
14027     {
14028       for (x = 0; x < brush_width; x++)
14029       {
14030         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
14031
14032         if (button != 1)
14033           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
14034       }
14035     }
14036
14037     if (button != 1)
14038       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14039
14040     delete_old_brush = FALSE;
14041   }
14042   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
14043            mode == CB_BRUSH_TO_LEVEL)
14044   {
14045     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
14046     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
14047     int cursor_from_x = cursor_x - brush_width / 2;
14048     int cursor_from_y = cursor_y - brush_height / 2;
14049     int border_from_x = cursor_x, border_from_y = cursor_y;
14050     int border_to_x = cursor_x, border_to_y = cursor_y;
14051
14052     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
14053       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14054
14055     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
14056         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
14057     {
14058       delete_old_brush = FALSE;
14059
14060       return;
14061     }
14062
14063     for (y = 0; y < brush_height; y++)
14064     {
14065       for (x = 0; x < brush_width; x++)
14066       {
14067         int sx = cursor_from_x + x;
14068         int sy = cursor_from_y + y;
14069         int lx = sx + level_xpos;
14070         int ly = sy + level_ypos;
14071         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
14072         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
14073                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
14074                        brush_buffer[x][y] : new_element);
14075
14076         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
14077         {
14078           if (sx < border_from_x)
14079             border_from_x = sx;
14080           else if (sx > border_to_x)
14081             border_to_x = sx;
14082           if (sy < border_from_y)
14083             border_from_y = sy;
14084           else if (sy > border_to_y)
14085             border_to_y = sy;
14086
14087           DrawBrushElement(sx, sy, element, change_level);
14088         }
14089       }
14090     }
14091
14092     if (mode != CB_DELETE_OLD_CURSOR)
14093       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
14094
14095     last_cursor_x = cursor_x;
14096     last_cursor_y = cursor_y;
14097
14098     delete_old_brush = TRUE;
14099   }
14100   else if (mode == CB_FLIP_BRUSH_X)
14101   {
14102     for (y = 0; y < brush_height; y++)
14103       for (x = 0; x < (brush_width + 1) / 2; x++)
14104         SwapFlippedTiles(&brush_buffer[x][y],
14105                          &brush_buffer[brush_width - x - 1][y], mode);
14106
14107     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14108   }
14109   else if (mode == CB_FLIP_BRUSH_Y)
14110   {
14111     for (y = 0; y < (brush_height + 1) / 2; y++)
14112       for (x = 0; x < brush_width; x++)
14113         SwapFlippedTiles(&brush_buffer[x][y],
14114                          &brush_buffer[x][brush_height - y - 1], mode);
14115
14116     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14117   }
14118   else if (mode == CB_FLIP_BRUSH_XY)
14119   {
14120     CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14121
14122     for (y = 0; y < MAX(brush_width, brush_height); y++)
14123       for (x = 0; x <= y; x++)
14124         SwapFlippedTiles(&brush_buffer[x][y],
14125                          &brush_buffer[y][x], mode);
14126
14127     swap_numbers(&brush_width, &brush_height);
14128
14129     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14130   }
14131
14132   if (mode == CB_UPDATE_BRUSH_POSITION)
14133   {
14134     last_cursor_x = from_x;
14135     last_cursor_y = from_y;
14136   }
14137 }
14138
14139 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
14140                             int button)
14141 {
14142   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
14143 }
14144
14145 static void CopyBrushToLevel(int x, int y, int button)
14146 {
14147   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
14148 }
14149
14150 static void CopyBrushToCursor(int x, int y)
14151 {
14152   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14153 }
14154
14155 static void UpdateBrushPosition(int x, int y)
14156 {
14157   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
14158 }
14159
14160 static void DeleteBrushFromCursor(void)
14161 {
14162   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14163 }
14164
14165 static void FlipBrushX(void)
14166 {
14167   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14168 }
14169
14170 static void FlipBrushY(void)
14171 {
14172   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_Y);
14173 }
14174
14175 static void RotateBrush(void)
14176 {
14177   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_XY);
14178   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14179 }
14180
14181 void DumpBrush(void)
14182 {
14183   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
14184 }
14185
14186 void DumpBrush_Small(void)
14187 {
14188   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
14189 }
14190
14191 void CopyClipboardToBrush(void)
14192 {
14193   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
14194 }
14195
14196 void CopyBrushToClipboard(void)
14197 {
14198   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
14199 }
14200
14201 void CopyBrushToClipboard_Small(void)
14202 {
14203   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
14204 }
14205
14206 void UndoLevelEditorOperation(void)
14207 {
14208   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
14209 }
14210
14211 void RedoLevelEditorOperation(void)
14212 {
14213   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14214 }
14215
14216 static void FloodFill(int from_x, int from_y, int fill_element)
14217 {
14218   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
14219 }
14220
14221 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
14222 {
14223   int from_x = from_sx2 + 2 * level_xpos;
14224   int from_y = from_sy2 + 2 * level_ypos;
14225   int max_fillx = lev_fieldx * 2;
14226   int max_filly = lev_fieldy * 2;
14227   short Fill[max_fillx][max_filly];
14228   int x, y;
14229
14230   for (x = 0; x < max_fillx; x++)
14231     for (y = 0; y < max_filly; y++)
14232       Fill[x][y] = getLevelElementHiRes(x, y);
14233
14234   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
14235                     Fill, max_fillx, max_filly);
14236
14237   for (x = 0; x < max_fillx; x++)
14238     for (y = 0; y < max_filly; y++)
14239       if (Fill[x][y] == fill_element)
14240         SetLevelElementHiRes(x, y, Fill[x][y]);
14241 }
14242
14243 // values for DrawLevelText() modes
14244 #define TEXT_INIT               0
14245 #define TEXT_SETCURSOR          1
14246 #define TEXT_WRITECHAR          2
14247 #define TEXT_BACKSPACE          3
14248 #define TEXT_NEWLINE            4
14249 #define TEXT_END                5
14250 #define TEXT_QUERY_TYPING       6
14251
14252 static int DrawLevelText(int sx, int sy, char letter, int mode)
14253 {
14254   static short delete_buffer[MAX_LEV_FIELDX];
14255   static int start_sx;
14256   static int last_sx, last_sy;
14257   static boolean typing = FALSE;
14258   int letter_element;
14259   int lx = 0, ly = 0;
14260
14261   // map lower case letters to upper case and convert special characters
14262   if (letter >= 'a' && letter <= 'z')
14263     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
14264   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
14265     letter_element = EL_CHAR_AUMLAUT;
14266   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
14267     letter_element = EL_CHAR_OUMLAUT;
14268   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
14269     letter_element = EL_CHAR_UUMLAUT;
14270   else if (letter == '^')
14271     letter_element = EL_CHAR_COPYRIGHT;
14272   else
14273     letter_element = EL_CHAR_ASCII0 + letter;
14274
14275   if (mode != TEXT_INIT)
14276   {
14277     if (!typing)
14278       return FALSE;
14279
14280     if (mode != TEXT_SETCURSOR)
14281     {
14282       sx = last_sx;
14283       sy = last_sy;
14284     }
14285
14286     lx = last_sx + level_xpos;
14287     ly = last_sy + level_ypos;
14288   }
14289
14290   switch (mode)
14291   {
14292     case TEXT_INIT:
14293       if (typing)
14294         DrawLevelText(0, 0, 0, TEXT_END);
14295
14296       typing = TRUE;
14297       start_sx = sx;
14298       last_sx = sx;
14299       last_sy = sy;
14300       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
14301       break;
14302
14303     case TEXT_SETCURSOR:
14304       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
14305       DrawAreaBorder(sx, sy, sx, sy);
14306       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
14307                      ed_tilesize, ed_tilesize);
14308       last_sx = sx;
14309       last_sy = sy;
14310       break;
14311
14312     case TEXT_WRITECHAR:
14313       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
14314       {
14315         if (new_element1 >= EL_STEEL_CHAR_START &&
14316             new_element1 <= EL_STEEL_CHAR_END)
14317           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
14318
14319         delete_buffer[sx - start_sx] = Tile[lx][ly];
14320         Tile[lx][ly] = letter_element;
14321
14322         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
14323           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
14324         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14325           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14326         else
14327           DrawLevelText(0, 0, 0, TEXT_END);
14328
14329         level.changed = TRUE;
14330       }
14331       break;
14332
14333     case TEXT_BACKSPACE:
14334       if (sx > start_sx)
14335       {
14336         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
14337         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
14338         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
14339       }
14340       break;
14341
14342     case TEXT_NEWLINE:
14343       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14344         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14345       else
14346         DrawLevelText(0, 0, 0, TEXT_END);
14347       break;
14348
14349     case TEXT_END:
14350       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14351       DrawEditorElement(sx, sy, Tile[lx][ly]);
14352       StopTextInput();
14353       typing = FALSE;
14354       break;
14355
14356     case TEXT_QUERY_TYPING:
14357       break;
14358
14359     default:
14360       break;
14361   }
14362
14363   return typing;
14364 }
14365
14366 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
14367                           int element, boolean change_level)
14368 {
14369   int lx = sx + level_xpos;
14370   int ly = sy + level_ypos;
14371
14372   if (element == -1)
14373     DrawEditorElement(sx, sy, Tile[lx][ly]);
14374   else
14375     DrawAreaBorder(sx, sy, sx, sy);
14376 }
14377
14378 static void CheckLevelBorderElement(boolean redraw_playfield)
14379 {
14380   int last_border_element = BorderElement;
14381
14382   SetBorderElement();
14383
14384   if (redraw_playfield && BorderElement != last_border_element)
14385     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14386 }
14387
14388 static void CopyLevelToUndoBuffer(int mode)
14389 {
14390   static boolean accumulated_undo = FALSE;
14391   boolean new_undo_buffer_position = TRUE;
14392   int x, y;
14393
14394   if (undo_buffer_steps == 0)
14395     accumulated_undo = FALSE;
14396
14397   switch (mode)
14398   {
14399     case UNDO_IMMEDIATE:
14400       accumulated_undo = FALSE;
14401       break;
14402
14403     case UNDO_ACCUMULATE:
14404       if (accumulated_undo)
14405         new_undo_buffer_position = FALSE;
14406       accumulated_undo = TRUE;
14407       break;
14408
14409     default:
14410       break;
14411   }
14412
14413   if (new_undo_buffer_position)
14414   {
14415     // advance position in undo buffer ring
14416     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14417
14418     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
14419       undo_buffer_steps++;
14420   }
14421
14422   // always reset redo buffer when storing level change into undo buffer
14423   redo_buffer_steps = 0;
14424
14425   for (x = 0; x < lev_fieldx; x++)
14426     for (y = 0; y < lev_fieldy; y++)
14427       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
14428
14429   // check if drawing operation forces change of border style
14430   CheckLevelBorderElement(TRUE);
14431
14432   level.changed = TRUE;
14433 }
14434
14435 static void RandomPlacement(int new_element)
14436 {
14437   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
14438   int num_free_positions = 0;
14439   int num_percentage, num_elements;
14440   int x, y;
14441
14442   ResetIntelliDraw();
14443
14444   // determine number of free positions for randomly placing the new element
14445   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
14446   {
14447     free_position[x][y] =
14448       (random_placement_background_restricted ?
14449        Tile[x][y] == random_placement_background_element :
14450        Tile[x][y] != new_element);
14451
14452     if (free_position[x][y])
14453       num_free_positions++;
14454   }
14455
14456   // determine number of new elements to place there
14457   num_percentage = num_free_positions * random_placement_value / 100;
14458   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
14459                   num_percentage : random_placement_value);
14460
14461   // if less free positions than elements to place, fill all these positions
14462   if (num_free_positions < num_elements)
14463   {
14464     for (x = 0; x < lev_fieldx; x++)
14465       for (y = 0; y < lev_fieldy; y++)
14466         if (free_position[x][y])
14467           SetElement(x, y, new_element);
14468   }
14469   else
14470   {
14471     while (num_elements > 0)
14472     {
14473       x = GetSimpleRandom(lev_fieldx);
14474       y = GetSimpleRandom(lev_fieldy);
14475
14476       // don't place element at the same position twice
14477       if (free_position[x][y])
14478       {
14479         free_position[x][y] = FALSE;
14480         SetElement(x, y, new_element);
14481         num_elements--;
14482       }
14483     }
14484   }
14485
14486   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14487   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14488 }
14489
14490 static void WrapLevel(int dx, int dy)
14491 {
14492   int wrap_dx = lev_fieldx - dx;
14493   int wrap_dy = lev_fieldy - dy;
14494   int x, y;
14495
14496   for (x = 0; x < lev_fieldx; x++)
14497     for (y = 0; y < lev_fieldy; y++)
14498       TileBackup[x][y] = Tile[x][y];
14499
14500   for (x = 0; x < lev_fieldx; x++)
14501     for (y = 0; y < lev_fieldy; y++)
14502       Tile[x][y] =
14503         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
14504
14505   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14506   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
14507 }
14508
14509 static void DrawAreaElementHighlight(boolean highlighted,
14510                                      boolean highlighted_similar)
14511 {
14512   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14513
14514   if (!highlighted)
14515     return;
14516
14517   int x, y;
14518
14519   for (x = 0; x < ed_fieldx; x++)
14520   {
14521     for (y = 0; y < ed_fieldy; y++)
14522     {
14523       boolean highlight = FALSE;
14524       int lx = x + level_xpos;
14525       int ly = y + level_ypos;
14526
14527       if (!IN_LEV_FIELD(lx, ly))
14528         continue;
14529
14530       // check if element is the same
14531       if (Tile[lx][ly] == new_element1)
14532         highlight = TRUE;
14533
14534       // check if element is similar
14535       if (highlighted_similar &&
14536           strEqual(element_info[Tile[lx][ly]].class_name,
14537                    element_info[new_element1].class_name))
14538         highlight = TRUE;
14539
14540       // check if element is matching MM style wall
14541       if (IS_MM_WALL(Tile[lx][ly]) &&
14542           map_mm_wall_element(Tile[lx][ly]) == new_element1)
14543         highlight = TRUE;
14544
14545       if (!highlight)
14546         continue;
14547
14548       if (IS_MM_WALL(Tile[lx][ly]) && !highlighted_similar)
14549       {
14550         int i;
14551
14552         for (i = 0; i < 4; i++)
14553         {
14554           if (!(MM_WALL_BITS(Tile[lx][ly]) & (1 << i)))
14555             continue;
14556
14557           int xx = x * 2 + (i % 2);
14558           int yy = y * 2 + (i / 2);
14559           int sx = SX + xx * ed_tilesize / 2;
14560           int sy = SY + yy * ed_tilesize / 2;
14561           int from_sx = sx;
14562           int from_sy = sy;
14563           int to_sx = sx + ed_tilesize / 2 - 1;
14564           int to_sy = sy + ed_tilesize / 2 - 1;
14565
14566           DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14567           DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14568           DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14569           DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14570         }
14571       }
14572       else
14573       {
14574         int sx = SX + x * ed_tilesize;
14575         int sy = SY + y * ed_tilesize;
14576         int from_sx = sx;
14577         int from_sy = sy;
14578         int to_sx = sx + ed_tilesize - 1;
14579         int to_sy = sy + ed_tilesize - 1;
14580
14581         DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14582         DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14583         DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14584         DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14585       }
14586     }
14587   }
14588 }
14589
14590 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
14591 {
14592   char *template_filename_old = getLocalLevelTemplateFilename();
14593   char *template_filename_new =
14594     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
14595
14596   if (copyFile(template_filename_old, template_filename_new) != 0)
14597     Request("Cannot copy level template!", REQ_CONFIRM);
14598
14599   free(template_filename_new);
14600 }
14601
14602 static void HandleDrawingAreas(struct GadgetInfo *gi)
14603 {
14604   static boolean started_inside_drawing_area = FALSE;
14605   static int last_sx = -1;
14606   static int last_sy = -1;
14607   static int last_sx2 = -1;
14608   static int last_sy2 = -1;
14609   int id = gi->custom_id;
14610   int type_id = gi->custom_type_id;
14611   boolean button_press_event;
14612   boolean button_release_event;
14613   boolean inside_drawing_area = !gi->event.off_borders;
14614   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
14615   int actual_drawing_function;
14616   int button = gi->event.button;
14617   int new_element = BUTTON_ELEMENT(button);
14618   int sx = gi->event.x, sy = gi->event.y;
14619   int min_sx = 0, min_sy = 0;
14620   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
14621   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
14622   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
14623   int sx2 = gi->event.mx / mini_item_xsize;
14624   int sy2 = gi->event.my / mini_item_ysize;
14625   int dx = sx2 % 2;
14626   int dy = sy2 % 2;
14627   int lx = 0, ly = 0;
14628   int x, y;
14629
14630   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
14631   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
14632
14633   // make sure to stay inside drawing area boundaries
14634   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
14635   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
14636
14637   if (draw_level)
14638   {
14639     int min_lx = 0, min_ly = 0;
14640     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
14641
14642     // get positions inside level field
14643     lx = sx + level_xpos;
14644     ly = sy + level_ypos;
14645
14646     if (!IN_LEV_FIELD(lx, ly))
14647       inside_drawing_area = FALSE;
14648
14649     // make sure to stay inside level field boundaries
14650     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
14651     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
14652
14653     // correct drawing area positions accordingly
14654     sx = lx - level_xpos;
14655     sy = ly - level_ypos;
14656   }
14657
14658   // also correct MM wall-sized (double) drawing area positions accordingly
14659   if (sx2 / 2 < sx || sx2 / 2 > sx)
14660   {
14661     dx = (sx2 / 2 < sx ? 0 : 1);
14662     sx2 = sx * 2 + dx;
14663   }
14664   if (sy2 / 2 < sy || sy2 / 2 > sy)
14665   {
14666     dy = (sy2 / 2 < sy ? 0 : 1);
14667     sy2 = sy * 2 + dy;
14668   }
14669
14670   if (!button_press_event && !button_release_event)
14671   {
14672     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
14673     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
14674                              isHiresTileElement(old_element) &&
14675                              isHiresDrawElement(new_element));
14676
14677     // prevent handling events for every pixel position when moving mouse
14678     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
14679         (sx2 == last_sx2 && sy2 == last_sy2))
14680       return;
14681   }
14682
14683   last_sx = sx;
14684   last_sy = sy;
14685   last_sx2 = sx2;
14686   last_sy2 = sy2;
14687
14688   if (button_press_event)
14689     started_inside_drawing_area = inside_drawing_area;
14690
14691   if (!started_inside_drawing_area)
14692     return;
14693
14694   if (!IS_VALID_BUTTON(button))
14695     return;
14696
14697   // handle info callback for each invocation of action callback
14698   gi->callback_info(gi);
14699
14700   // automatically switch to 'single item' drawing mode, if needed
14701   actual_drawing_function =
14702     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
14703      drawing_function : GADGET_ID_SINGLE_ITEMS);
14704
14705   // clicking into drawing area with pressed Control key picks element
14706   if (GetKeyModState() & KMOD_Control)
14707   {
14708     last_drawing_function = drawing_function;
14709     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
14710   }
14711
14712   if (GetKeyModState() & KMOD_Shift)
14713   {
14714     if (button_press_event || button_release_event)
14715       ResetIntelliDraw();
14716   }
14717
14718   SetDrawModeHiRes(-1);         // reset to normal draw mode
14719
14720   switch (actual_drawing_function)
14721   {
14722     case GADGET_ID_SINGLE_ITEMS:
14723       if (draw_level)
14724       {
14725         if (button_release_event)
14726         {
14727           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14728
14729           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
14730               !inside_drawing_area)
14731             DeleteBrushFromCursor();
14732
14733           break;
14734         }
14735
14736         if (draw_with_brush)
14737         {
14738           CopyBrushToLevel(sx, sy, button);
14739         }
14740         else
14741         {
14742           SetDrawModeHiRes(new_element);
14743
14744           if (IS_PLAYER_ELEMENT(new_element) || IS_MM_MCDUFFIN(new_element))
14745           {
14746             // remove player at old position
14747             for (y = 0; y < lev_fieldy; y++)
14748             {
14749               for (x = 0; x < lev_fieldx; x++)
14750               {
14751                 int old_element = Tile[x][y];
14752
14753                 if (IS_PLAYER_ELEMENT(old_element) &&
14754                     IS_PLAYER_ELEMENT(new_element))
14755                 {
14756                   int replaced_with_element =
14757                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
14758                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
14759
14760                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
14761                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
14762
14763                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
14764                      old_element == EL_PLAYER_1 ? EL_EMPTY :
14765
14766                      new_element >= EL_PLAYER_1 &&
14767                      new_element <= EL_PLAYER_4 &&
14768                      new_element == old_element ? EL_EMPTY :
14769
14770                      old_element);
14771
14772                   SetElement(x, y, replaced_with_element);
14773                 }
14774                 else if (IS_MM_MCDUFFIN(old_element) &&
14775                          IS_MM_MCDUFFIN(new_element))
14776                 {
14777                   // remove McDuffin at old position
14778                   SetElement(x, y, EL_EMPTY);
14779                 }
14780               }
14781             }
14782           }
14783
14784           SetElementButton(lx, ly, dx, dy, new_element, button);
14785         }
14786       }
14787       else if (!button_release_event)
14788       {
14789         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14790
14791         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
14792           DrawMiniGraphicExt(drawto,
14793                              gi->x + sx * MINI_TILEX,
14794                              gi->y + sy * MINI_TILEY,
14795                              el2edimg(new_element));
14796         else
14797           DrawFixedGraphicExt(drawto,
14798                               gi->x + sx * TILEX,
14799                               gi->y + sy * TILEY,
14800                               el2edimg(new_element), 0);
14801
14802         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14803           new_element = GFX_ELEMENT(new_element);
14804
14805         drawingarea_info[type_id].value[pos] = new_element;
14806
14807         CopyElementPropertiesToGame(properties_element);
14808
14809         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14810         {
14811           UpdateCustomElementGraphicGadgets();
14812
14813           FrameCounter = 0;     // restart animation frame counter
14814         }
14815       }
14816       break;
14817
14818     case GADGET_ID_CONNECTED_ITEMS:
14819       {
14820         static int last_sx = -1;
14821         static int last_sy = -1;
14822
14823         if (button_release_event)
14824           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14825
14826         SetDrawModeHiRes(new_element);
14827
14828         if (getDrawModeHiRes())
14829         {
14830           sx = sx2;
14831           sy = sy2;
14832         }
14833
14834         if (!button_press_event)
14835           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
14836
14837         last_sx = sx;
14838         last_sy = sy;
14839       }
14840       break;
14841
14842     case GADGET_ID_LINE:
14843     case GADGET_ID_ARC:
14844     case GADGET_ID_RECTANGLE:
14845     case GADGET_ID_FILLED_BOX:
14846       SetDrawModeHiRes(new_element);
14847
14848       if (getDrawModeHiRes())
14849       {
14850         sx = sx2;
14851         sy = sy2;
14852       }
14853       // FALLTHROUGH
14854     case GADGET_ID_GRAB_BRUSH:
14855     case GADGET_ID_TEXT:
14856       {
14857         static int last_sx = -1;
14858         static int last_sy = -1;
14859         static int start_sx = -1;
14860         static int start_sy = -1;
14861         void (*draw_func)(int, int, int, int, int, boolean);
14862
14863         if (drawing_function == GADGET_ID_LINE)
14864           draw_func = DrawLine;
14865         else if (drawing_function == GADGET_ID_ARC)
14866           draw_func = DrawArc;
14867         else if (drawing_function == GADGET_ID_RECTANGLE)
14868           draw_func = DrawBox;
14869         else if (drawing_function == GADGET_ID_FILLED_BOX)
14870           draw_func = DrawFilledBox;
14871         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
14872           draw_func = SelectArea;
14873         else // (drawing_function == GADGET_ID_TEXT)
14874           draw_func = SetTextCursor;
14875
14876         if (button_press_event)
14877         {
14878           draw_func(sx, sy, sx, sy, new_element, FALSE);
14879           start_sx = last_sx = sx;
14880           start_sy = last_sy = sy;
14881
14882           if (drawing_function == GADGET_ID_TEXT)
14883             DrawLevelText(0, 0, 0, TEXT_END);
14884         }
14885         else if (button_release_event)
14886         {
14887           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
14888           if (drawing_function == GADGET_ID_GRAB_BRUSH)
14889           {
14890             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
14891             CopyBrushToCursor(sx, sy);
14892             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
14893                           MB_LEFTBUTTON);
14894             draw_with_brush = TRUE;
14895           }
14896           else if (drawing_function == GADGET_ID_TEXT)
14897             DrawLevelText(sx, sy, 0, TEXT_INIT);
14898           else
14899             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14900         }
14901         else if (last_sx != sx || last_sy != sy)
14902         {
14903           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
14904           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
14905             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
14906           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
14907           last_sx = sx;
14908           last_sy = sy;
14909         }
14910       }
14911       break;
14912
14913     case GADGET_ID_FLOOD_FILL:
14914       if (button_press_event && Tile[lx][ly] != new_element)
14915       {
14916         if (IS_MM_WALL_EDITOR(new_element))
14917           FloodFillWall_MM(sx2, sy2, new_element);
14918         else
14919           FloodFill(lx, ly, new_element);
14920
14921         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14922         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14923       }
14924       break;
14925
14926     case GADGET_ID_PICK_ELEMENT:
14927       if (button_release_event)
14928         ClickOnGadget(level_editor_gadget[last_drawing_function],
14929                       MB_LEFTBUTTON);
14930       else if (draw_level)
14931         PickDrawingElement(button, Tile[lx][ly]);
14932       else
14933       {
14934         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14935
14936         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
14937       }
14938
14939     default:
14940       break;
14941   }
14942
14943   // do not mark level as modified for certain non-level-changing gadgets
14944   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
14945        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
14946       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
14947       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14948     return;
14949
14950   level.changed = TRUE;
14951 }
14952
14953 static void HandleCounterButtons(struct GadgetInfo *gi)
14954 {
14955   int gadget_id = gi->custom_id;
14956   int counter_id = gi->custom_type_id;
14957   int button = gi->event.button;
14958   int *counter_value = counterbutton_info[counter_id].value;
14959   int step = BUTTON_STEPSIZE(button) *
14960     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
14961
14962   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14963   {
14964     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
14965     boolean released = (gi->event.type == GD_EVENT_RELEASED);
14966     boolean level_changed = LevelChanged();
14967
14968     if ((level_changed && pressed) || (!level_changed && released))
14969       return;
14970
14971     if (level_changed && !Request("Level has changed! Discard changes?",
14972                                   REQ_ASK))
14973     {
14974       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14975         ModifyEditorCounterValue(counter_id, *counter_value);
14976
14977       return;
14978     }
14979   }
14980
14981   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14982     *counter_value = gi->textinput.number_value;
14983   else
14984     ModifyEditorCounterValue(counter_id, *counter_value + step);
14985
14986   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14987   {
14988     int last_game_engine_type = level.game_engine_type;
14989
14990     LoadLevel(level_nr);
14991     LoadScore(level_nr);
14992
14993     SaveLevelSetup_SeriesInfo();
14994
14995     TapeErase();
14996
14997     ResetUndoBuffer();
14998     DrawEditModeWindow();
14999
15000     if (level.game_engine_type != last_game_engine_type)
15001     {
15002       // update element selection list
15003       ReinitializeElementList();
15004       ModifyEditorElementList();
15005     }
15006
15007     return;
15008   }
15009
15010   switch (counter_id)
15011   {
15012     case ED_COUNTER_ID_YAMYAM_CONTENT:
15013       DrawYamYamContentAreas();
15014       break;
15015
15016     case ED_COUNTER_ID_BALL_CONTENT:
15017       DrawMagicBallContentAreas();
15018       break;
15019
15020     case ED_COUNTER_ID_ANDROID_CONTENT:
15021       DrawAndroidElementArea();
15022       break;
15023
15024     case ED_COUNTER_ID_GROUP_CONTENT:
15025       DrawGroupElementArea();
15026       CopyGroupElementPropertiesToGame(properties_element);
15027       break;
15028
15029     case ED_COUNTER_ID_INVENTORY_SIZE:
15030       DrawPlayerInitialInventoryArea(properties_element);
15031       break;
15032
15033     case ED_COUNTER_ID_MM_BALL_CONTENT:
15034       DrawMMBallContentArea();
15035       break;
15036
15037     case ED_COUNTER_ID_ENVELOPE_XSIZE:
15038     case ED_COUNTER_ID_ENVELOPE_YSIZE:
15039       DrawEnvelopeTextArea(-1);
15040       break;
15041
15042     case ED_COUNTER_ID_LEVEL_XSIZE:
15043     case ED_COUNTER_ID_LEVEL_YSIZE:
15044       lev_fieldx = level.fieldx;
15045       lev_fieldy = level.fieldy;
15046
15047       // check if resizing of level results in change of border border
15048       SetBorderElement();
15049
15050       break;
15051
15052     default:
15053       break;
15054   }
15055
15056   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
15057        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
15058       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
15059        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
15060     CopyElementPropertiesToGame(properties_element);
15061
15062   // do not mark level as modified for certain non-level-changing gadgets
15063   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
15064        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
15065       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
15066        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
15067     return;
15068
15069   level.changed = TRUE;
15070 }
15071
15072 static void HandleTextInputGadgets(struct GadgetInfo *gi)
15073 {
15074   int type_id = gi->custom_type_id;
15075
15076   strcpy(textinput_info[type_id].value, gi->textinput.value);
15077
15078   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
15079   {
15080     CopyElementPropertiesToGame(properties_element);
15081
15082     ModifyEditorElementList();  // update changed button info text
15083   }
15084
15085   // do not mark level as modified for certain non-level-changing gadgets
15086   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
15087       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
15088     return;
15089
15090   level.changed = TRUE;
15091 }
15092
15093 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
15094 {
15095   int type_id = gi->custom_type_id;
15096
15097   strncpy(textarea_info[type_id].value, gi->textarea.value,
15098           MAX_ENVELOPE_TEXT_LEN);
15099   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
15100
15101   level.changed = TRUE;
15102 }
15103
15104 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
15105 {
15106   int type_id = gi->custom_type_id;
15107   int value_old = *selectbox_info[type_id].value;
15108   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
15109
15110   *selectbox_info[type_id].value = value_new;
15111
15112   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
15113   {
15114     DrawLevelConfigWindow();
15115   }
15116   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
15117   {
15118     element_info[properties_element].current_change_page = gi->selectbox.index;
15119
15120     DrawPropertiesWindow();
15121   }
15122   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
15123             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
15124            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
15125             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
15126            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
15127   {
15128     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
15129     {
15130       // when changing action type, also check action mode and action arg
15131       if (value_old != value_new)
15132         setSelectboxSpecialActionVariablesIfNeeded();
15133
15134       DrawPropertiesChange();
15135     }
15136
15137     CopyElementPropertiesToGame(properties_element);
15138   }
15139   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
15140   {
15141     // show or hide "engine" tabulator depending on game engine type
15142     DrawLevelConfigWindow();
15143
15144     // update element selection list depending on game engine type
15145     ReinitializeElementList();
15146     ModifyEditorElementList();
15147   }
15148   else if (type_id == ED_SELECTBOX_ID_BD_SCHEDULING_TYPE)
15149   {
15150     // update BD cycle delay counter gadgets depending on BD scheduling type
15151     DrawLevelConfigWindow();
15152   }
15153
15154   // do not mark level as modified for certain non-level-changing gadgets
15155   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
15156       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
15157     return;
15158
15159   level.changed = TRUE;
15160 }
15161
15162 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
15163 {
15164   int type_id = gi->custom_type_id;
15165   int i;
15166
15167   if (type_id >= ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST &&
15168       type_id <= ED_TAB_BUTTON_ID_LEVELCONFIG_LAST)
15169   {
15170     edit_mode_levelconfig = gi->custom_type_id;
15171
15172     DrawLevelConfigWindow();
15173   }
15174   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
15175            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
15176   {
15177     edit_mode_properties = gi->custom_type_id;
15178
15179     DrawPropertiesWindow();
15180   }
15181   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
15182            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
15183   {
15184     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
15185
15186     // backup original "level.field" (needed to track playfield changes)
15187     CopyPlayfield(level.field, TileBackup);
15188
15189     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
15190     CopyPlayfield(Tile, level.field);
15191
15192     if (new_template ||
15193         Request("Save this template and kill the old?", REQ_ASK))
15194       SaveLevelTemplate();
15195
15196     if (new_template)
15197       Request("Template saved!", REQ_CONFIRM);
15198
15199     // restore original "level.field" (needed to track playfield changes)
15200     CopyPlayfield(TileBackup, level.field);
15201   }
15202   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
15203   {
15204     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
15205
15206     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
15207         leveldir_current->readonly)
15208     {
15209       Request("This level set is read-only!", REQ_CONFIRM);
15210
15211       return;
15212     }
15213
15214     if (strEqual(levelset_name, ""))
15215     {
15216       Request("Please enter level set title!", REQ_CONFIRM);
15217
15218       return;
15219     }
15220
15221     if (strEqual(levelset_author, ""))
15222     {
15223       Request("Please enter level set author!", REQ_CONFIRM);
15224
15225       return;
15226     }
15227
15228     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
15229     {
15230       if (UpdateUserLevelSet(levelset_subdir,
15231                              levelset_name,
15232                              levelset_author,
15233                              levelset_num_levels))
15234       {
15235         Request("Level set updated!", REQ_CONFIRM);
15236       }
15237       else
15238       {
15239         Request("Updating level set failed!", REQ_CONFIRM);
15240       }
15241     }
15242     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
15243     {
15244       if (level.changed && !Request("Level has changed! Discard changes?",
15245                                      REQ_ASK))
15246         return;
15247
15248       if (CreateUserLevelSet(levelset_subdir,
15249                              levelset_name,
15250                              levelset_author,
15251                              levelset_num_levels,
15252                              levelset_use_levelset_artwork))
15253       {
15254         if (levelset_copy_level_template)
15255           CopyLevelTemplateToUserLevelSet(levelset_subdir);
15256
15257         Request("New level set created!", REQ_CONFIRM);
15258
15259         AddUserLevelSetToLevelInfo(levelset_subdir);
15260         ChangeEditorToLevelSet(levelset_subdir);
15261       }
15262       else
15263       {
15264         Request("Creating new level set failed!", REQ_CONFIRM);
15265       }
15266     }
15267   }
15268   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
15269            custom_element.num_change_pages < MAX_CHANGE_PAGES)
15270   {
15271     struct ElementInfo *ei = &element_info[properties_element];
15272
15273     // when modifying custom element, ask for copying level template
15274     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15275       return;
15276
15277     setElementChangePages(ei, ei->num_change_pages + 1);
15278
15279     // set new change page to be new current change page
15280     ei->current_change_page = ei->num_change_pages - 1;
15281     ei->change = &ei->change_page[ei->current_change_page];
15282
15283     setElementChangeInfoToDefaults(ei->change);
15284
15285     DrawPropertiesWindow();
15286
15287     level.changed = TRUE;
15288   }
15289   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
15290            custom_element.num_change_pages > MIN_CHANGE_PAGES)
15291   {
15292     struct ElementInfo *ei = &element_info[properties_element];
15293
15294     // when modifying custom element, ask for copying level template
15295     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15296       return;
15297
15298     // copy all change pages after change page to be deleted
15299     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
15300       ei->change_page[i] = ei->change_page[i + 1];
15301
15302     setElementChangePages(ei, ei->num_change_pages - 1);
15303
15304     DrawPropertiesWindow();
15305
15306     level.changed = TRUE;
15307   }
15308 }
15309
15310 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
15311 {
15312   int type_id = gi->custom_type_id;
15313
15314   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
15315       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
15316   {
15317     struct ElementInfo *ei = &element_info[properties_element];
15318     int step = BUTTON_STEPSIZE(gi->event.button);
15319
15320     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
15321     ei->current_change_page += step;
15322
15323     if (ei->current_change_page < 0)
15324       ei->current_change_page = 0;
15325     else if (ei->current_change_page >= ei->num_change_pages)
15326       ei->current_change_page = ei->num_change_pages - 1;
15327
15328     DrawPropertiesWindow();
15329   }
15330   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
15331            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15332   {
15333     struct ElementInfo *ei = &element_info[properties_element];
15334     int current_change_page = ei->current_change_page;
15335
15336     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
15337     {
15338       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
15339         ei->change_page[current_change_page];
15340     }
15341     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15342     {
15343       // when modifying custom element, ask for copying level template
15344       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15345         return;
15346
15347       ei->change_page[current_change_page] =
15348         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
15349
15350       level.changed = TRUE;
15351     }
15352
15353     DrawPropertiesWindow();
15354   }
15355 }
15356
15357 static void HandleRadiobuttons(struct GadgetInfo *gi)
15358 {
15359   int type_id = gi->custom_type_id;
15360
15361   *radiobutton_info[type_id].value =
15362     radiobutton_info[type_id].checked_value;
15363
15364   // do not mark level as modified for certain non-level-changing gadgets
15365   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
15366       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
15367     return;
15368
15369   level.changed = TRUE;
15370 }
15371
15372 static void HandleCheckbuttons(struct GadgetInfo *gi)
15373 {
15374   int type_id = gi->custom_type_id;
15375
15376   *checkbutton_info[type_id].value ^= TRUE;
15377
15378   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
15379       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
15380       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
15381       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
15382          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
15383         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
15384          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
15385        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
15386   {
15387     CopyElementPropertiesToGame(properties_element);
15388   }
15389
15390   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
15391   {
15392     UpdateCustomElementGraphicGadgets();
15393   }
15394   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
15395            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
15396   {
15397     boolean template_related_changes_found = FALSE;
15398     int i;
15399
15400     // check if any custom, group or empty elements have been changed
15401     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
15402       if ((IS_CUSTOM_ELEMENT(i) ||
15403            IS_GROUP_ELEMENT(i) ||
15404            IS_EMPTY_ELEMENT(i)) &&
15405           element_info[i].modified_settings)
15406         template_related_changes_found = TRUE;
15407
15408     if (level.use_custom_template &&
15409         !fileExists(getGlobalLevelTemplateFilename()))
15410     {
15411       Request("No level template found!", REQ_CONFIRM);
15412
15413       level.use_custom_template = FALSE;
15414
15415       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15416
15417       return;
15418     }
15419
15420     if (level.use_custom_template &&
15421         template_related_changes_found &&
15422         !Request("Discard changes and use level template?", REQ_ASK))
15423     {
15424       level.use_custom_template = FALSE;
15425
15426       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15427
15428       return;
15429     }
15430
15431     if (!level.use_custom_template &&
15432         Request("Copy settings from level template?", REQ_ASK))
15433     {
15434       return;
15435     }
15436
15437     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
15438
15439     DrawEditModeWindow();
15440   }
15441   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
15442   {
15443     if (setup.editor.use_template_for_new_levels &&
15444         !fileExists(getGlobalLevelTemplateFilename()))
15445     {
15446       Request("No level template found!", REQ_CONFIRM);
15447
15448       return;
15449     }
15450
15451     if (setup.editor.use_template_for_new_levels &&
15452         level.changed &&
15453         !Request("Discard level and load template?", REQ_ASK))
15454     {
15455       return;
15456     }
15457
15458     if (!setup.editor.use_template_for_new_levels &&
15459         level.changed &&
15460         !Request("Discard level and use empty level?", REQ_ASK))
15461     {
15462       return;
15463     }
15464
15465     LoadLevel(level_nr);
15466     LoadScore(level_nr);
15467
15468     TapeErase();
15469
15470     ResetUndoBuffer();
15471     DrawEditModeWindow();
15472   }
15473   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
15474   {
15475     SetAutomaticNumberOfGemsNeeded();
15476   }
15477
15478   // do not mark level as modified for certain non-level-changing gadgets
15479   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
15480        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
15481       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
15482        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
15483        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
15484       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
15485     return;
15486
15487   level.changed = TRUE;
15488 }
15489
15490 static void HandleControlButtons(struct GadgetInfo *gi)
15491 {
15492   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
15493   static int last_edit_mode = ED_MODE_DRAWING;
15494   static int last_custom_copy_mode = -1;
15495   static int last_button = 0;
15496   int id = gi->custom_id;
15497   int button = gi->event.button;
15498   int step = BUTTON_STEPSIZE(button);
15499   int new_element = BUTTON_ELEMENT(button);
15500   int last_properties_element = properties_element;
15501   int x, y;
15502
15503   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
15504     DrawLevelText(0, 0, 0, TEXT_END);
15505
15506   if (id < ED_NUM_CTRL1_BUTTONS &&
15507       id != GADGET_ID_SINGLE_ITEMS &&
15508       id != GADGET_ID_PICK_ELEMENT &&
15509       edit_mode != ED_MODE_DRAWING &&
15510       drawing_function != GADGET_ID_PICK_ELEMENT &&
15511       !(GetKeyModState() & KMOD_Control))
15512     ChangeEditModeWindow(ED_MODE_DRAWING);
15513
15514   // element copy mode active, but no element button pressed => deactivate
15515   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
15516     last_custom_copy_mode = -1;
15517
15518   // when showing palette on element buttons, change element of button used
15519   if (editor.palette.show_on_element_buttons &&
15520       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
15521   {
15522     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
15523
15524     id = GADGET_ID_PALETTE;
15525   }
15526
15527   switch (id)
15528   {
15529     case GADGET_ID_SCROLL_LEFT:
15530       if (level_xpos >= 0)
15531       {
15532         if (lev_fieldx < ed_fieldx - 2)
15533           break;
15534
15535         level_xpos -= step;
15536         if (level_xpos < -1)
15537           level_xpos = -1;
15538         if (button == 1)
15539           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
15540         else
15541           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15542
15543         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15544                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15545       }
15546       break;
15547
15548     case GADGET_ID_SCROLL_RIGHT:
15549       if (level_xpos <= lev_fieldx - ed_fieldx)
15550       {
15551         if (lev_fieldx < ed_fieldx - 2)
15552           break;
15553
15554         level_xpos += step;
15555         if (level_xpos > lev_fieldx - ed_fieldx + 1)
15556           level_xpos = lev_fieldx - ed_fieldx + 1;
15557         if (button == 1)
15558           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
15559         else
15560           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15561
15562         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15563                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15564       }
15565       break;
15566
15567     case GADGET_ID_SCROLL_UP:
15568       if (level_ypos >= 0)
15569       {
15570         if (lev_fieldy < ed_fieldy - 2)
15571           break;
15572
15573         level_ypos -= step;
15574         if (level_ypos < -1)
15575           level_ypos = -1;
15576         if (button == 1)
15577           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
15578         else
15579           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15580
15581         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15582                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15583       }
15584       break;
15585
15586     case GADGET_ID_SCROLL_DOWN:
15587       if (level_ypos <= lev_fieldy - ed_fieldy)
15588       {
15589         if (lev_fieldy < ed_fieldy - 2)
15590           break;
15591
15592         level_ypos += step;
15593         if (level_ypos > lev_fieldy - ed_fieldy + 1)
15594           level_ypos = lev_fieldy - ed_fieldy + 1;
15595         if (button == 1)
15596           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
15597         else
15598           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15599
15600         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15601                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15602       }
15603       break;
15604
15605     case GADGET_ID_SCROLL_HORIZONTAL:
15606       level_xpos = gi->event.item_position - 1;
15607
15608       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15609       BackToFront();
15610
15611       break;
15612
15613     case GADGET_ID_SCROLL_VERTICAL:
15614       level_ypos = gi->event.item_position - 1;
15615
15616       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15617       BackToFront();
15618
15619       break;
15620
15621     case GADGET_ID_SCROLL_LIST_UP:
15622     case GADGET_ID_SCROLL_LIST_DOWN:
15623     case GADGET_ID_SCROLL_LIST_VERTICAL:
15624       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
15625         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
15626       else
15627       {
15628         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
15629         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15630
15631         if (element_shift < 0)
15632           element_shift = 0;
15633         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15634           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15635
15636         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15637                      GDI_SCROLLBAR_ITEM_POSITION,
15638                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15639       }
15640
15641       ModifyEditorElementList();
15642
15643       break;
15644
15645     case GADGET_ID_PROPERTIES:
15646       // always switch off element properties when they are already displayed
15647       last_properties_element = new_element;
15648     case GADGET_ID_ELEMENT_LEFT:
15649     case GADGET_ID_ELEMENT_MIDDLE:
15650     case GADGET_ID_ELEMENT_RIGHT:
15651       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
15652                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
15653                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
15654                             new_element);
15655
15656       if (edit_mode != ED_MODE_PROPERTIES)
15657       {
15658         last_edit_mode = edit_mode;
15659
15660         ChangeEditModeWindow(ED_MODE_PROPERTIES);
15661
15662         last_level_drawing_function = drawing_function;
15663         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
15664                       MB_LEFTBUTTON);
15665       }
15666       else if (properties_element != last_properties_element)
15667       {
15668         DrawEditModeWindow();
15669       }
15670       else
15671       {
15672         ChangeEditModeWindow(ED_MODE_DRAWING);
15673
15674         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
15675                       MB_LEFTBUTTON);
15676       }
15677       break;
15678
15679     case GADGET_ID_PALETTE:
15680       if (edit_mode != ED_MODE_PALETTE)
15681       {
15682         last_edit_mode = edit_mode;
15683
15684         ChangeEditModeWindow(ED_MODE_PALETTE);
15685       }
15686       else
15687       {
15688         ChangeEditModeWindow(last_edit_mode);
15689       }
15690       break;
15691
15692     case GADGET_ID_WRAP_LEFT:
15693       WrapLevel(-step, 0);
15694       break;
15695
15696     case GADGET_ID_WRAP_RIGHT:
15697       WrapLevel(step, 0);
15698       break;
15699
15700     case GADGET_ID_WRAP_UP:
15701       WrapLevel(0, -step);
15702       break;
15703
15704     case GADGET_ID_WRAP_DOWN:
15705       WrapLevel(0, step);
15706       break;
15707
15708     case GADGET_ID_SINGLE_ITEMS:
15709     case GADGET_ID_CONNECTED_ITEMS:
15710     case GADGET_ID_LINE:
15711     case GADGET_ID_ARC:
15712     case GADGET_ID_TEXT:
15713     case GADGET_ID_RECTANGLE:
15714     case GADGET_ID_FILLED_BOX:
15715     case GADGET_ID_FLOOD_FILL:
15716     case GADGET_ID_GRAB_BRUSH:
15717     case GADGET_ID_PICK_ELEMENT:
15718       if (drawing_function != GADGET_ID_PICK_ELEMENT)
15719         last_drawing_function = drawing_function;
15720       drawing_function = id;
15721       draw_with_brush = FALSE;
15722       break;
15723
15724     case GADGET_ID_RANDOM_PLACEMENT:
15725       RandomPlacement(new_element);
15726       break;
15727
15728     case GADGET_ID_ZOOM:
15729       // zoom level editor tile size in or out (or reset to default size)
15730       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
15731                      button == 2 ? ed_tilesize_default :
15732                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
15733
15734       // when using touch device, cycle through all zoom tilesizes
15735       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
15736         ed_tilesize = MICRO_TILESIZE;
15737
15738       // limit zoom level by upper and lower bound
15739       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
15740
15741       InitZoomLevelSettings(ed_tilesize);
15742
15743       if (edit_mode == ED_MODE_DRAWING)
15744       {
15745         DrawDrawingWindow();
15746
15747         // redraw zoom gadget info text
15748         PrintEditorGadgetInfoText(level_editor_gadget[id]);
15749       }
15750
15751       // save current editor zoom tilesize
15752       SaveSetup_AutoSetup();
15753
15754       break;
15755
15756     case GADGET_ID_CUSTOM_COPY_FROM:
15757     case GADGET_ID_CUSTOM_COPY_TO:
15758     case GADGET_ID_CUSTOM_EXCHANGE:
15759       last_custom_copy_mode = id;
15760       last_drawing_function = drawing_function;
15761       break;
15762
15763     case GADGET_ID_CUSTOM_COPY:
15764       CopyCustomElement(properties_element, -1, id);
15765       break;
15766
15767     case GADGET_ID_CUSTOM_PASTE:
15768       CopyCustomElement(-1, properties_element, id);
15769       break;
15770
15771     case GADGET_ID_UNDO:
15772       if (button < 0)   // keep button value (even if modifier keys are pressed)
15773         button = -button;
15774       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
15775         button = 3;
15776
15777       if (button == 1 && undo_buffer_steps == 0)
15778       {
15779         Request("Undo buffer empty!", REQ_CONFIRM);
15780
15781         break;
15782       }
15783       else if (button == 2)
15784       {
15785         break;
15786       }
15787       else if (button == 3 && redo_buffer_steps == 0)
15788       {
15789         Request("Redo buffer empty!", REQ_CONFIRM);
15790
15791         break;
15792       }
15793
15794       if (edit_mode != ED_MODE_DRAWING)
15795         ChangeEditModeWindow(ED_MODE_DRAWING);
15796
15797       if (button == 1)
15798       {
15799         // undo
15800
15801         undo_buffer_position =
15802           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
15803
15804         undo_buffer_steps--;
15805         redo_buffer_steps++;
15806       }
15807       else
15808       {
15809         // redo
15810
15811         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
15812
15813         undo_buffer_steps++;
15814         redo_buffer_steps--;
15815       }
15816
15817       for (x = 0; x < lev_fieldx; x++)
15818         for (y = 0; y < lev_fieldy; y++)
15819           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
15820
15821       // check if undo operation forces change of border style
15822       CheckLevelBorderElement(FALSE);
15823
15824       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15825
15826       break;
15827
15828     case GADGET_ID_CONF:
15829       if (edit_mode != ED_MODE_LEVELCONFIG)
15830       {
15831         last_edit_mode = edit_mode;
15832
15833         ChangeEditModeWindow(ED_MODE_LEVELCONFIG);
15834       }
15835       else
15836       {
15837         ChangeEditModeWindow(ED_MODE_DRAWING);
15838       }
15839       break;
15840
15841     case GADGET_ID_CLEAR:
15842       if (edit_mode != ED_MODE_DRAWING)
15843         ChangeEditModeWindow(ED_MODE_DRAWING);
15844
15845       for (x = 0; x < MAX_LEV_FIELDX; x++)
15846         for (y = 0; y < MAX_LEV_FIELDY; y++)
15847           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
15848
15849       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
15850
15851       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15852       break;
15853
15854     case GADGET_ID_SAVE:
15855     {
15856       // saving read-only levels into personal level set modifies global vars
15857       // "leveldir_current" and "level_nr"; restore them after saving level
15858       LevelDirTree *leveldir_former = leveldir_current;
15859       int level_nr_former = level_nr;
15860       char *level_filename;
15861       boolean new_level;
15862
15863       if (leveldir_current->readonly &&
15864           !PrepareSavingIntoPersonalLevelSet())
15865         break;
15866
15867       level_filename = getDefaultLevelFilename(level_nr);
15868       new_level = !fileExists(level_filename);
15869
15870       if (new_level ||
15871           Request("Save this level and kill the old?", REQ_ASK))
15872       {
15873         if (leveldir_former->readonly)
15874           ModifyLevelConfigForSavingIntoPersonalLevelSet(leveldir_former->name);
15875
15876         SetAutomaticNumberOfGemsNeeded();
15877
15878         CopyPlayfield(Tile, level.field);
15879         SaveLevel(level_nr);
15880
15881         level.changed = FALSE;
15882
15883         if (new_level)
15884         {
15885           char level_saved_msg[64];
15886
15887           if (leveldir_former->readonly)
15888             sprintf(level_saved_msg,
15889                     "Level saved as level %d into personal level set!",
15890                     level_nr);
15891           else
15892             strcpy(level_saved_msg, "Level saved!");
15893
15894           Request(level_saved_msg, REQ_CONFIRM);
15895         }
15896       }
15897
15898       // "cd" back to copied-from levelset (in case of saved read-only level)
15899       leveldir_current = leveldir_former;
15900       level_nr = level_nr_former;
15901
15902       break;
15903     }
15904
15905     case GADGET_ID_TEST:
15906       if (LevelChanged())
15907         level.game_version = GAME_VERSION_ACTUAL;
15908
15909       CopyPlayfield(level.field, TileBackup);
15910       CopyPlayfield(Tile, level.field);
15911
15912       CopyNativeLevel_RND_to_Native(&level);
15913
15914       UnmapLevelEditorGadgets();
15915       UndrawSpecialEditorDoor();
15916
15917       CloseDoor(DOOR_CLOSE_ALL);
15918
15919       // needed before playing if editor playfield area has different size
15920       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
15921
15922       // redraw_mask = REDRAW_ALL;
15923
15924       level_editor_test_game = TRUE;
15925
15926       StartGameActions(FALSE, setup.autorecord, level.random_seed);
15927
15928       break;
15929
15930     case GADGET_ID_EXIT:
15931       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
15932       break;
15933
15934     default:
15935       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
15936           id <= GADGET_ID_ELEMENTLIST_LAST)
15937       {
15938         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
15939
15940         new_element = editor_elements[element_position + element_shift];
15941
15942         if (IS_EDITOR_CASCADE(new_element))
15943         {
15944           int i;
15945
15946           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
15947           {
15948             int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
15949             boolean *cascade_value = editor_elements_info[i].setup_cascade_value;
15950
15951             if (*cascade_element == new_element)
15952             {
15953               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
15954               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
15955
15956               // update element selection list
15957               ReinitializeElementList();
15958               ModifyEditorElementList();
15959
15960               // update cascading gadget info text
15961               PrintEditorGadgetInfoText(level_editor_gadget[id]);
15962
15963               // save current editor cascading state
15964               SaveSetup_EditorCascade();
15965
15966               break;
15967             }
15968           }
15969
15970           break;
15971         }
15972
15973         if (last_custom_copy_mode != -1)
15974         {
15975           if (CopyCustomElement(properties_element, new_element,
15976                                 last_custom_copy_mode))
15977           {
15978             ClickOnGadget(level_editor_gadget[last_drawing_function],
15979                           MB_LEFTBUTTON);
15980
15981             last_custom_copy_mode = -1;
15982           }
15983
15984           break;
15985         }
15986
15987         // change element of button used to show palette
15988         if (editor.palette.show_on_element_buttons)
15989           button = last_button;
15990
15991         PickDrawingElement(button, new_element);
15992
15993         if (!stick_element_properties_window &&
15994             drawing_function != GADGET_ID_PICK_ELEMENT &&
15995             !(GetKeyModState() & KMOD_Control))
15996         {
15997           properties_element = new_element;
15998           if (edit_mode == ED_MODE_PROPERTIES)
15999             DrawPropertiesWindow();
16000         }
16001
16002         if (drawing_function == GADGET_ID_PICK_ELEMENT)
16003           ClickOnGadget(level_editor_gadget[last_drawing_function],
16004                         MB_LEFTBUTTON);
16005
16006         if (!use_permanent_palette)
16007           ChangeEditModeWindow(last_edit_mode);
16008       }
16009 #ifdef DEBUG
16010       else if (gi->event.type == GD_EVENT_PRESSED)
16011         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
16012       else if (gi->event.type == GD_EVENT_RELEASED)
16013         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
16014       else if (gi->event.type == GD_EVENT_MOVING)
16015         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
16016       else
16017         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
16018 #endif
16019       break;
16020   }
16021 }
16022
16023 void HandleLevelEditorKeyInput(Key key)
16024 {
16025   char letter = getCharFromKey(key);
16026
16027   if (drawing_function == GADGET_ID_TEXT &&
16028       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
16029   {
16030     if (letter)
16031       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
16032     else if (key == KSYM_Delete || key == KSYM_BackSpace)
16033       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
16034     else if (key == KSYM_Return)
16035       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
16036     else if (key == KSYM_Escape)
16037       DrawLevelText(0, 0, 0, TEXT_END);
16038
16039     return;
16040   }
16041
16042   int id = GADGET_ID_NONE;
16043   int new_element_shift = element_shift;
16044   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
16045   int button = MB_LEFTBUTTON;
16046   int i;
16047
16048   switch (key)
16049   {
16050     case KSYM_Left:
16051       id = GADGET_ID_SCROLL_LEFT;
16052       break;
16053     case KSYM_Right:
16054       id = GADGET_ID_SCROLL_RIGHT;
16055       break;
16056     case KSYM_Up:
16057       id = GADGET_ID_SCROLL_UP;
16058       break;
16059     case KSYM_Down:
16060       id = GADGET_ID_SCROLL_DOWN;
16061       break;
16062
16063     case KSYM_Page_Up:
16064     case KSYM_Page_Down:
16065       step *= (key == KSYM_Page_Up ? -1 : +1);
16066       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
16067
16068       if (element_shift < 0)
16069         element_shift = 0;
16070       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
16071         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
16072
16073       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
16074                    GDI_SCROLLBAR_ITEM_POSITION,
16075                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
16076
16077       ModifyEditorElementList();
16078
16079       break;
16080
16081     case KSYM_Home:
16082     case KSYM_End:
16083       element_shift = (key == KSYM_Home ? 0 :
16084                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
16085
16086       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
16087                    GDI_SCROLLBAR_ITEM_POSITION,
16088                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
16089
16090       ModifyEditorElementList();
16091
16092       break;
16093
16094     case KSYM_Insert:
16095     case KSYM_Delete:
16096
16097       // this is needed to prevent interference with running "True X-Mouse"
16098       if (GetKeyModStateFromEvents() & KMOD_Control)
16099         break;
16100
16101       // check for last or next editor cascade block in element list
16102       for (i = 0; i < num_editor_elements; i++)
16103       {
16104         if ((key == KSYM_Insert && i == element_shift) ||
16105             (key == KSYM_Delete && new_element_shift > element_shift))
16106           break;
16107
16108         // jump to next cascade block (or to start of element list)
16109         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
16110           new_element_shift = i;
16111       }
16112
16113       if (i < num_editor_elements)
16114         element_shift = new_element_shift;
16115
16116       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
16117         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
16118
16119       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
16120                    GDI_SCROLLBAR_ITEM_POSITION,
16121                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
16122
16123       ModifyEditorElementList();
16124
16125       break;
16126
16127     case KSYM_Escape:
16128       if (edit_mode == ED_MODE_DRAWING)
16129         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
16130       else if (edit_mode == ED_MODE_LEVELCONFIG)
16131         HandleControlButtons(level_editor_gadget[GADGET_ID_CONF]);
16132       else if (edit_mode == ED_MODE_PROPERTIES)
16133         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
16134       else if (edit_mode == ED_MODE_PALETTE)
16135         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
16136       else              // should never happen
16137         ChangeEditModeWindow(ED_MODE_DRAWING);
16138
16139       break;
16140
16141     default:
16142       break;
16143   }
16144
16145   if (id != GADGET_ID_NONE)
16146     ClickOnGadget(level_editor_gadget[id], button);
16147   else if (letter == '1' || letter == '?')
16148     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
16149   else if (letter == '2')
16150     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
16151   else if (letter == '3')
16152     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
16153   else if (letter == '.')
16154     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
16155   else if (letter == 'U')
16156     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
16157   else if (letter == '-' || key == KSYM_KP_Subtract)
16158     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
16159   else if (letter == '0' || key == KSYM_KP_0)
16160     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
16161   else if (letter == '+' || key == KSYM_KP_Add ||
16162            letter == '=')       // ("Shift-=" is "+" on US keyboards)
16163     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
16164   else if (key == KSYM_Return ||
16165            key == KSYM_space ||
16166            key == setup.shortcut.toggle_pause)
16167     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
16168   else
16169     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
16170       if (letter && letter == controlbutton_info[i].shortcut)
16171         if (!anyTextGadgetActive())
16172           ClickOnGadget(level_editor_gadget[i], button);
16173
16174   if (draw_with_brush)
16175   {
16176     if (letter == 'x')
16177       FlipBrushX();
16178     else if (letter == 'y')
16179       FlipBrushY();
16180     else if (letter == 'z')
16181       RotateBrush();
16182   }
16183 }
16184
16185 static void HandleLevelEditorIdle_Properties(void)
16186 {
16187   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
16188   int x = editor.settings.element_graphic.x + element_border;
16189   int y = editor.settings.element_graphic.y + element_border;
16190   static DelayCounter action_delay = { 0 };
16191   int i;
16192
16193   action_delay.value = GameFrameDelay;
16194
16195   if (!DelayReached(&action_delay))
16196     return;
16197
16198   for (i = 0; i < ED_NUM_SELECTBOX; i++)
16199   {
16200     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
16201
16202     if (gi->mapped && gi->active && gi->selectbox.open)
16203       return;
16204   }
16205
16206   DrawEditorElementAnimation(SX + x, SY + y);
16207
16208   redraw_mask |= REDRAW_FIELD;
16209
16210   FrameCounter++;       // increase animation frame counter
16211 }
16212
16213 static void HandleLevelEditorIdle_Drawing(void)
16214 {
16215   static boolean last_highlighted = FALSE;
16216   static boolean last_highlighted_similar = FALSE;
16217   boolean highlighted = (GetKeyModState() & KMOD_Alt);
16218   boolean highlighted_similar = (GetKeyModState() & KMOD_Shift);
16219
16220   if (highlighted != last_highlighted ||
16221       (highlighted && highlighted_similar != last_highlighted_similar))
16222   {
16223     DrawAreaElementHighlight(highlighted, highlighted_similar);
16224
16225     redraw_mask |= REDRAW_FIELD;
16226   }
16227
16228   last_highlighted = highlighted;
16229   last_highlighted_similar = highlighted_similar;
16230 }
16231
16232 void HandleLevelEditorIdle(void)
16233 {
16234   if (edit_mode == ED_MODE_PROPERTIES)
16235     HandleLevelEditorIdle_Properties();
16236   else if (edit_mode == ED_MODE_DRAWING)
16237     HandleLevelEditorIdle_Drawing();
16238 }
16239
16240 static void ClearEditorGadgetInfoText(void)
16241 {
16242   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
16243 }
16244
16245 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
16246 {
16247   char infotext[MAX_OUTPUT_LINESIZE + 1];
16248   int max_infotext_len = getMaxInfoTextLength();
16249
16250   if (gi == NULL || strlen(gi->info_text) == 0)
16251     return;
16252
16253   strncpy(infotext, gi->info_text, max_infotext_len);
16254   infotext[max_infotext_len] = '\0';
16255
16256   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
16257   {
16258     int key = controlbutton_info[gi->custom_id].shortcut;
16259
16260     if (key)
16261     {
16262       char shortcut[MAX_OUTPUT_LINESIZE + 1];
16263
16264       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
16265         sprintf(shortcut, " ('.' or '%c')", key);
16266       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
16267         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
16268       else if (gi->custom_id == GADGET_ID_TEST)
16269         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
16270       else if (gi->custom_id == GADGET_ID_UNDO)
16271         sprintf(shortcut, " ('%c/Shift-U')", key);
16272       else if (gi->custom_id == GADGET_ID_ZOOM)
16273         sprintf(shortcut, " ('%c', '0', '-')", key);
16274       else
16275         sprintf(shortcut, " ('%s%c')",
16276                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
16277
16278       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
16279         strcat(infotext, shortcut);
16280     }
16281   }
16282
16283   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
16284 }
16285
16286 void HandleEditorGadgetInfoText(void *ptr)
16287 {
16288   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
16289
16290   if (game_status != GAME_MODE_EDITOR)
16291     return;
16292
16293   ClearEditorGadgetInfoText();
16294
16295   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
16296     return;
16297
16298   // misuse this function to delete brush cursor, if needed
16299   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
16300     DeleteBrushFromCursor();
16301
16302   PrintEditorGadgetInfoText(gi);
16303 }
16304
16305 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
16306 {
16307   int id = gi->custom_id;
16308   int type_id = gi->custom_type_id;
16309   int sx = gi->event.x;
16310   int sy = gi->event.y;
16311   int lx = sx + level_xpos;
16312   int ly = sy + level_ypos;
16313   int min_sx = 0, min_sy = 0;
16314   int max_sx = gi->drawing.area_xsize - 1;
16315   int max_sy = gi->drawing.area_ysize - 1;
16316   int actual_drawing_function = drawing_function;
16317   int max_infotext_len = getMaxInfoTextLength();
16318   char infotext[MAX_OUTPUT_LINESIZE + 1];
16319
16320   infotext[0] = '\0';           // start with empty info text
16321
16322   // pressed Control key: simulate picking element
16323   if (GetKeyModState() & KMOD_Control)
16324     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
16325
16326   ClearEditorGadgetInfoText();
16327
16328   if (gi->event.type == GD_EVENT_INFO_LEAVING)
16329     return;
16330
16331   // make sure to stay inside drawing area boundaries
16332   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
16333   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
16334
16335   if (id == GADGET_ID_DRAWING_LEVEL)
16336   {
16337     if (button_status)
16338     {
16339       int min_lx = 0, min_ly = 0;
16340       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
16341
16342       // get positions inside level field
16343       lx = sx + level_xpos;
16344       ly = sy + level_ypos;
16345
16346       // make sure to stay inside level field boundaries
16347       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
16348       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
16349
16350       // correct drawing area positions accordingly
16351       sx = lx - level_xpos;
16352       sy = ly - level_ypos;
16353     }
16354
16355     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16356     {
16357       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
16358       {
16359         static int start_lx = 0;
16360         static int start_ly = 0;
16361         char *text;
16362
16363         if (gi->event.type == GD_EVENT_PRESSED)
16364         {
16365           start_lx = lx;
16366           start_ly = ly;
16367         }
16368
16369         switch (actual_drawing_function)
16370         {
16371           case GADGET_ID_SINGLE_ITEMS:
16372             text = "Drawing single items";
16373             break;
16374           case GADGET_ID_CONNECTED_ITEMS:
16375             text = "Drawing connected items";
16376             break;
16377           case GADGET_ID_LINE:
16378             text = "Drawing line";
16379             break;
16380           case GADGET_ID_ARC:
16381             text = "Drawing arc";
16382             break;
16383           case GADGET_ID_TEXT:
16384             text = "Setting text cursor";
16385             break;
16386           case GADGET_ID_RECTANGLE:
16387             text = "Drawing rectangle";
16388             break;
16389           case GADGET_ID_FILLED_BOX:
16390             text = "Drawing filled box";
16391             break;
16392           case GADGET_ID_FLOOD_FILL:
16393             text = "Flood fill";
16394             break;
16395           case GADGET_ID_GRAB_BRUSH:
16396             text = "Grabbing brush";
16397             break;
16398           case GADGET_ID_PICK_ELEMENT:
16399             text = "Picking element";
16400             break;
16401
16402           default:
16403             text = "Drawing position";
16404             break;
16405         }
16406
16407         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16408           sprintf(infotext, "%s: %d, %d", text, lx, ly);
16409         else
16410           sprintf(infotext, "%s: %d, %d", text,
16411                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
16412       }
16413       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16414         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
16415       else
16416         sprintf(infotext, "Level position: %d, %d", lx, ly);
16417     }
16418
16419     // misuse this function to draw brush cursor, if needed
16420     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
16421     {
16422       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16423         CopyBrushToCursor(sx, sy);
16424       else
16425         DeleteBrushFromCursor();
16426     }
16427
16428     if (!draw_with_brush)
16429       UpdateBrushPosition(sx, sy);
16430   }
16431   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16432   {
16433     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
16434     int element = drawingarea_info[type_id].value[pos];
16435
16436     strncpy(infotext, getElementInfoText(element), max_infotext_len);
16437   }
16438   else
16439   {
16440     if (id == GADGET_ID_CUSTOM_CONTENT)
16441       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
16442     else if (id == GADGET_ID_GROUP_CONTENT)
16443       sprintf(infotext, "group element position: %d", sx + 1);
16444     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
16445              id <= GADGET_ID_YAMYAM_CONTENT_7)
16446       sprintf(infotext, "content area %d position: %d, %d",
16447               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
16448     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
16449              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
16450       sprintf(infotext, "content area %d position: %d, %d",
16451               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
16452     else if (id == GADGET_ID_ANDROID_CONTENT)
16453       sprintf(infotext, "android element position: %d", sx + 1);
16454     else if (drawingarea_info[type_id].infotext != NULL)
16455       strcpy(infotext, drawingarea_info[type_id].infotext);
16456   }
16457
16458   infotext[max_infotext_len] = '\0';
16459
16460   if (strlen(infotext) > 0)
16461     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
16462 }
16463
16464 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
16465                             boolean quick_quit)
16466 {
16467   if (!ask_if_level_has_changed ||
16468       !LevelChanged() ||
16469       Request("Level has changed! Exit without saving?",
16470               REQ_ASK | REQ_STAY_OPEN))
16471   {
16472     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
16473     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
16474
16475     // draw normal door
16476     UndrawSpecialEditorDoor();
16477
16478     // use door animation if door 1 viewport is unchanged and contains toolbox
16479     if (useEditorDoorAnimation())
16480       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
16481
16482     // close editor doors if viewport definition is the same as in main menu
16483     if (vp_door_1->x      == DX     &&
16484         vp_door_1->y      == DY     &&
16485         vp_door_1->width  == DXSIZE &&
16486         vp_door_1->height == DYSIZE &&
16487         vp_door_2->x      == VX     &&
16488         vp_door_2->y      == VY     &&
16489         vp_door_2->width  == VXSIZE &&
16490         vp_door_2->height == VYSIZE)
16491       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
16492     else
16493       SetDoorState(DOOR_CLOSE_ALL);
16494
16495     BackToFront();
16496
16497     if (quick_quit)
16498       FadeSkipNextFadeIn();
16499
16500     SetGameStatus(GAME_MODE_MAIN);
16501
16502     DrawMainMenu();
16503   }
16504   else
16505   {
16506     if (!global.use_envelope_request)
16507     {
16508       CloseDoor(DOOR_CLOSE_1);
16509       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
16510     }
16511   }
16512 }