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