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_AMOEBA_CONTENT_TOO_BIG,
 560   GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED,
 561   GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
 562   GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
 563   GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
 564   GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
 565   GADGET_ID_START_ELEMENT,
 566   GADGET_ID_ARTWORK_ELEMENT,
 567   GADGET_ID_EXPLOSION_ELEMENT,
 568   GADGET_ID_INVENTORY_CONTENT,
 569   GADGET_ID_MM_BALL_CONTENT,
 570   GADGET_ID_CUSTOM_GRAPHIC,
 571   GADGET_ID_CUSTOM_CONTENT,
 572   GADGET_ID_CUSTOM_MOVE_ENTER,
 573   GADGET_ID_CUSTOM_MOVE_LEAVE,
 574   GADGET_ID_CUSTOM_CHANGE_TARGET,
 575   GADGET_ID_CUSTOM_CHANGE_CONTENT,
 576   GADGET_ID_CUSTOM_CHANGE_TRIGGER,
 577   GADGET_ID_CUSTOM_CHANGE_ACTION,
 578   GADGET_ID_GROUP_CONTENT,
 579   GADGET_ID_RANDOM_BACKGROUND,
 580
 581   // text input identifiers
 582
 583   GADGET_ID_LEVEL_NAME,
 584   GADGET_ID_LEVEL_AUTHOR,
 585   GADGET_ID_LEVELSET_NAME,
 586   GADGET_ID_LEVELSET_AUTHOR,
 587   GADGET_ID_ELEMENT_NAME,
 588
 589   // text area identifiers
 590
 591   GADGET_ID_ENVELOPE_INFO,
 592
 593   // selectbox identifiers
 594
 595   GADGET_ID_TIME_OR_STEPS,
 596   GADGET_ID_TIME_SCORE_BASE,
 597   GADGET_ID_GAME_ENGINE_TYPE,
 598   GADGET_ID_BD_SCHEDULING_TYPE,
 599   GADGET_ID_LEVELSET_SAVE_MODE,
 600   GADGET_ID_WIND_DIRECTION,
 601   GADGET_ID_PLAYER_SPEED,
 602   GADGET_ID_MM_BALL_CHOICE_MODE,
 603   GADGET_ID_CUSTOM_WALK_TO_ACTION,
 604   GADGET_ID_CUSTOM_EXPLOSION_TYPE,
 605   GADGET_ID_CUSTOM_DEADLINESS,
 606   GADGET_ID_CUSTOM_MOVE_PATTERN,
 607   GADGET_ID_CUSTOM_MOVE_DIRECTION,
 608   GADGET_ID_CUSTOM_MOVE_STEPSIZE,
 609   GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
 610   GADGET_ID_CUSTOM_SMASH_TARGETS,
 611   GADGET_ID_CUSTOM_SLIPPERY_TYPE,
 612   GADGET_ID_CUSTOM_ACCESS_TYPE,
 613   GADGET_ID_CUSTOM_ACCESS_LAYER,
 614   GADGET_ID_CUSTOM_ACCESS_PROTECTED,
 615   GADGET_ID_CUSTOM_ACCESS_DIRECTION,
 616   GADGET_ID_CHANGE_TIME_UNITS,
 617   GADGET_ID_CHANGE_DIRECT_ACTION,
 618   GADGET_ID_CHANGE_OTHER_ACTION,
 619   GADGET_ID_CHANGE_SIDE,
 620   GADGET_ID_CHANGE_PLAYER,
 621   GADGET_ID_CHANGE_PAGE,
 622   GADGET_ID_CHANGE_REPLACE_WHEN,
 623   GADGET_ID_ACTION_TYPE,
 624   GADGET_ID_ACTION_MODE,
 625   GADGET_ID_ACTION_ARG,
 626   GADGET_ID_SELECT_CHANGE_PAGE,
 627   GADGET_ID_GROUP_CHOICE_MODE,
 628
 629   // textbutton identifiers
 630
 631   GADGET_ID_LEVELCONFIG_LEVEL,
 632   GADGET_ID_LEVELCONFIG_LEVELSET,
 633   GADGET_ID_LEVELCONFIG_EDITOR,
 634   GADGET_ID_LEVELCONFIG_ENGINE,
 635   GADGET_ID_PROPERTIES_INFO,
 636   GADGET_ID_PROPERTIES_CONFIG,
 637   GADGET_ID_PROPERTIES_CONFIG_1,
 638   GADGET_ID_PROPERTIES_CONFIG_2,
 639   GADGET_ID_PROPERTIES_CHANGE,
 640   GADGET_ID_SAVE_AS_TEMPLATE_1,
 641   GADGET_ID_SAVE_AS_TEMPLATE_2,
 642   GADGET_ID_SAVE_LEVELSET,
 643   GADGET_ID_ADD_CHANGE_PAGE,
 644   GADGET_ID_DEL_CHANGE_PAGE,
 645
 646   // graphicbutton identifiers
 647
 648   GADGET_ID_PREV_CHANGE_PAGE,
 649   GADGET_ID_NEXT_CHANGE_PAGE,
 650   GADGET_ID_COPY_CHANGE_PAGE,
 651   GADGET_ID_PASTE_CHANGE_PAGE,
 652
 653   // gadgets for scrolling of drawing area
 654
 655   GADGET_ID_SCROLL_UP,
 656   GADGET_ID_SCROLL_DOWN,
 657   GADGET_ID_SCROLL_LEFT,
 658   GADGET_ID_SCROLL_RIGHT,
 659   GADGET_ID_SCROLL_HORIZONTAL,
 660   GADGET_ID_SCROLL_VERTICAL,
 661
 662   // gadgets for scrolling element list
 663
 664   GADGET_ID_SCROLL_LIST_UP,
 665   GADGET_ID_SCROLL_LIST_DOWN,
 666   GADGET_ID_SCROLL_LIST_VERTICAL,
 667
 668   // checkbuttons/radiobuttons for level/element properties
 669
 670   GADGET_ID_AUTO_COUNT_GEMS,
 671   GADGET_ID_RATE_TIME_OVER_SCORE,
 672   GADGET_ID_USE_LEVELSET_ARTWORK,
 673   GADGET_ID_COPY_LEVEL_TEMPLATE,
 674   GADGET_ID_RANDOM_PERCENTAGE,
 675   GADGET_ID_RANDOM_QUANTITY,
 676   GADGET_ID_RANDOM_RESTRICTED,
 677   GADGET_ID_BD_INTERMISSION,
 678   GADGET_ID_BD_PAL_TIMING,
 679   GADGET_ID_BD_LINE_SHIFTING_BORDERS,
 680   GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW,
 681   GADGET_ID_BD_SHORT_EXPLOSIONS,
 682   GADGET_ID_BD_GRAVITY_AFFECTS_ALL,
 683   GADGET_ID_STICK_ELEMENT,
 684   GADGET_ID_EM_SLIPPERY_GEMS,
 685   GADGET_ID_EM_EXPLODES_BY_FIRE,
 686   GADGET_ID_USE_SPRING_BUG,
 687   GADGET_ID_USE_TIME_ORB_BUG,
 688   GADGET_ID_USE_LIFE_BUGS,
 689   GADGET_ID_RANDOM_BALL_CONTENT,
 690   GADGET_ID_INITIAL_BALL_ACTIVE,
 691   GADGET_ID_GROW_INTO_DIGGABLE,
 692   GADGET_ID_SB_FIELDS_NEEDED,
 693   GADGET_ID_SB_OBJECTS_NEEDED,
 694   GADGET_ID_AUTO_EXIT_SOKOBAN,
 695   GADGET_ID_SOLVED_BY_ONE_PLAYER,
 696   GADGET_ID_FINISH_DIG_COLLECT,
 697   GADGET_ID_KEEP_WALKABLE_CE,
 698   GADGET_ID_CONTINUOUS_SNAPPING,
 699   GADGET_ID_BLOCK_SNAP_FIELD,
 700   GADGET_ID_BLOCK_LAST_FIELD,
 701   GADGET_ID_SP_BLOCK_LAST_FIELD,
 702   GADGET_ID_INSTANT_RELOCATION,
 703   GADGET_ID_SHIFTED_RELOCATION,
 704   GADGET_ID_LAZY_RELOCATION,
 705   GADGET_ID_USE_START_ELEMENT,
 706   GADGET_ID_USE_ARTWORK_ELEMENT,
 707   GADGET_ID_USE_EXPLOSION_ELEMENT,
 708   GADGET_ID_INITIAL_GRAVITY,
 709   GADGET_ID_USE_INITIAL_INVENTORY,
 710   GADGET_ID_CAN_PASS_TO_WALKABLE,
 711   GADGET_ID_CAN_FALL_INTO_ACID,
 712   GADGET_ID_CAN_MOVE_INTO_ACID,
 713   GADGET_ID_DONT_COLLIDE_WITH,
 714   GADGET_ID_BD_DIAGONAL_MOVEMENTS,
 715   GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE,
 716   GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
 717   GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING,
 718   GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
 719   GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
 720   GADGET_ID_BD_AMOEBA_START_IMMEDIATELY,
 721   GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
 722   GADGET_ID_ENVELOPE_AUTOWRAP,
 723   GADGET_ID_ENVELOPE_CENTERED,
 724   GADGET_ID_MM_LASER_RED,
 725   GADGET_ID_MM_LASER_GREEN,
 726   GADGET_ID_MM_LASER_BLUE,
 727   GADGET_ID_DF_LASER_RED,
 728   GADGET_ID_DF_LASER_GREEN,
 729   GADGET_ID_DF_LASER_BLUE,
 730   GADGET_ID_ROTATE_MM_BALL_CONTENT,
 731   GADGET_ID_EXPLODE_MM_BALL,
 732   GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 733   GADGET_ID_CUSTOM_CAN_EXPLODE,
 734   GADGET_ID_CUSTOM_EXPLODE_FIRE,
 735   GADGET_ID_CUSTOM_EXPLODE_SMASH,
 736   GADGET_ID_CUSTOM_EXPLODE_IMPACT,
 737   GADGET_ID_CUSTOM_WALK_TO_OBJECT,
 738   GADGET_ID_CUSTOM_DEADLY,
 739   GADGET_ID_CUSTOM_CAN_MOVE,
 740   GADGET_ID_CUSTOM_CAN_FALL,
 741   GADGET_ID_CUSTOM_CAN_SMASH,
 742   GADGET_ID_CUSTOM_SLIPPERY,
 743   GADGET_ID_CUSTOM_ACCESSIBLE,
 744   GADGET_ID_CUSTOM_GRAV_REACHABLE,
 745   GADGET_ID_CUSTOM_USE_LAST_VALUE,
 746   GADGET_ID_CUSTOM_USE_GRAPHIC,
 747   GADGET_ID_CUSTOM_USE_TEMPLATE_1,
 748   GADGET_ID_CUSTOM_USE_TEMPLATE_2,
 749   GADGET_ID_CUSTOM_USE_TEMPLATE_3,
 750   GADGET_ID_CUSTOM_CAN_CHANGE,
 751   GADGET_ID_CHANGE_USE_CONTENT,
 752   GADGET_ID_CHANGE_USE_EXPLOSION,
 753   GADGET_ID_CHANGE_ONLY_COMPLETE,
 754   GADGET_ID_CHANGE_USE_RANDOM,
 755   GADGET_ID_CHANGE_HAS_ACTION,
 756   GADGET_ID_CHANGE_DELAY,
 757   GADGET_ID_CHANGE_BY_DIRECT_ACT,
 758   GADGET_ID_CHANGE_BY_OTHER_ACT,
 759
 760   NUM_STATIC_GADGET_IDS
 761 };
 762
 763 // gadgets for buttons in element list (dynamic)
 764 #define GADGET_ID_ELEMENTLIST_FIRST     (NUM_STATIC_GADGET_IDS)
 765 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 766                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 767
 768 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 769
 770 // radio button numbers
 771 enum
 772 {
 773   RADIO_NR_NONE,
 774   RADIO_NR_DRAWING_TOOLBOX,
 775   RADIO_NR_RANDOM_ELEMENTS
 776 };
 777
 778 // values for counter gadgets
 779 enum
 780 {
 781   ED_COUNTER_ID_SELECT_LEVEL,
 782   ED_COUNTER_ID_LEVEL_XSIZE,
 783   ED_COUNTER_ID_LEVEL_YSIZE,
 784   ED_COUNTER_ID_LEVEL_GEMSLIMIT,
 785   ED_COUNTER_ID_LEVEL_TIMELIMIT,
 786   ED_COUNTER_ID_LEVEL_TIMESCORE,
 787   ED_COUNTER_ID_LEVEL_RANDOM_SEED,
 788   ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
 789   ED_COUNTER_ID_LEVEL_RANDOM,
 790   ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
 791   ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
 792   ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
 793   ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
 794   ED_COUNTER_ID_BD_PUSHING_PROB,
 795   ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
 796   ED_COUNTER_ID_ELEMENT_VALUE1,
 797   ED_COUNTER_ID_ELEMENT_VALUE2,
 798   ED_COUNTER_ID_ELEMENT_VALUE3,
 799   ED_COUNTER_ID_ELEMENT_VALUE4,
 800   ED_COUNTER_ID_YAMYAM_CONTENT,
 801   ED_COUNTER_ID_BALL_CONTENT,
 802   ED_COUNTER_ID_ANDROID_CONTENT,
 803   ED_COUNTER_ID_ENVELOPE_XSIZE,
 804   ED_COUNTER_ID_ENVELOPE_YSIZE,
 805   ED_COUNTER_ID_INVENTORY_SIZE,
 806   ED_COUNTER_ID_MM_BALL_CONTENT,
 807   ED_COUNTER_ID_CUSTOM_SCORE,
 808   ED_COUNTER_ID_CUSTOM_GEMCOUNT,
 809   ED_COUNTER_ID_CUSTOM_VALUE_FIX,
 810   ED_COUNTER_ID_CUSTOM_VALUE_RND,
 811   ED_COUNTER_ID_PUSH_DELAY_FIX,
 812   ED_COUNTER_ID_PUSH_DELAY_RND,
 813   ED_COUNTER_ID_DROP_DELAY_FIX,
 814   ED_COUNTER_ID_DROP_DELAY_RND,
 815   ED_COUNTER_ID_MOVE_DELAY_FIX,
 816   ED_COUNTER_ID_MOVE_DELAY_RND,
 817   ED_COUNTER_ID_STEP_DELAY_FIX,
 818   ED_COUNTER_ID_STEP_DELAY_RND,
 819   ED_COUNTER_ID_EXPLOSION_DELAY,
 820   ED_COUNTER_ID_IGNITION_DELAY,
 821   ED_COUNTER_ID_GROUP_CONTENT,
 822   ED_COUNTER_ID_CHANGE_DELAY_FIX,
 823   ED_COUNTER_ID_CHANGE_DELAY_RND,
 824   ED_COUNTER_ID_CHANGE_CONT_RND,
 825
 826   ED_NUM_COUNTERBUTTONS
 827 };
 828
 829 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 830 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 831 #define ED_COUNTER_ID_LEVELSET_FIRST    ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 832 #define ED_COUNTER_ID_LEVELSET_LAST     ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 833 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 834 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 835
 836 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 837 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 838 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 839 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 840 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 841 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 842
 843 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 844 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 845
 846 // values for scrollbutton gadgets
 847 enum
 848 {
 849   ED_SCROLLBUTTON_ID_AREA_UP,
 850   ED_SCROLLBUTTON_ID_AREA_DOWN,
 851   ED_SCROLLBUTTON_ID_AREA_LEFT,
 852   ED_SCROLLBUTTON_ID_AREA_RIGHT,
 853   ED_SCROLLBUTTON_ID_LIST_UP,
 854   ED_SCROLLBUTTON_ID_LIST_DOWN,
 855
 856   ED_NUM_SCROLLBUTTONS
 857 };
 858
 859 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 860 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 861
 862 // values for scrollbar gadgets
 863 enum
 864 {
 865   ED_SCROLLBAR_ID_AREA_HORIZONTAL,
 866   ED_SCROLLBAR_ID_AREA_VERTICAL,
 867   ED_SCROLLBAR_ID_LIST_VERTICAL,
 868
 869   ED_NUM_SCROLLBARS
 870 };
 871
 872 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 873 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 874
 875 // values for text input gadgets
 876 enum
 877 {
 878   ED_TEXTINPUT_ID_LEVEL_NAME,
 879   ED_TEXTINPUT_ID_LEVEL_AUTHOR,
 880   ED_TEXTINPUT_ID_LEVELSET_NAME,
 881   ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
 882   ED_TEXTINPUT_ID_ELEMENT_NAME,
 883
 884   ED_NUM_TEXTINPUT
 885 };
 886
 887 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 888 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 889
 890 #define ED_TEXTINPUT_ID_LEVELSET_FIRST  ED_TEXTINPUT_ID_LEVELSET_NAME
 891 #define ED_TEXTINPUT_ID_LEVELSET_LAST   ED_TEXTINPUT_ID_LEVELSET_AUTHOR
 892
 893 // values for text area gadgets
 894 enum
 895 {
 896   ED_TEXTAREA_ID_ENVELOPE_INFO,
 897
 898   ED_NUM_TEXTAREAS
 899 };
 900
 901 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 902 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 903
 904 // values for selectbox gadgets
 905 enum
 906 {
 907   ED_SELECTBOX_ID_TIME_OR_STEPS,
 908   ED_SELECTBOX_ID_TIME_SCORE_BASE,
 909   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
 910   ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
 911   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
 912   ED_SELECTBOX_ID_WIND_DIRECTION,
 913   ED_SELECTBOX_ID_PLAYER_SPEED,
 914   ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
 915   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
 916   ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
 917   ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
 918   ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
 919   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
 920   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
 921   ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
 922   ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
 923   ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
 924   ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
 925   ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
 926   ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
 927   ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
 928   ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
 929   ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
 930   ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
 931   ED_SELECTBOX_ID_CHANGE_SIDE,
 932   ED_SELECTBOX_ID_CHANGE_PLAYER,
 933   ED_SELECTBOX_ID_CHANGE_PAGE,
 934   ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
 935   ED_SELECTBOX_ID_ACTION_TYPE,
 936   ED_SELECTBOX_ID_ACTION_MODE,
 937   ED_SELECTBOX_ID_ACTION_ARG,
 938   ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
 939   ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
 940
 941   ED_NUM_SELECTBOX
 942 };
 943
 944 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 945 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 946
 947 #define ED_SELECTBOX_ID_LEVELSET_FIRST  ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 948 #define ED_SELECTBOX_ID_LEVELSET_LAST   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 949
 950 #define ED_SELECTBOX_ID_ENGINE_FIRST    ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 951 #define ED_SELECTBOX_ID_ENGINE_LAST     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 952
 953 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 954 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 955 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 956 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 957 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 958 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 959
 960 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 961 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 962
 963 // values for textbutton gadgets
 964 enum
 965 {
 966   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
 967   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
 968   ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
 969   ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
 970   ED_TEXTBUTTON_ID_PROPERTIES_INFO,
 971   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
 972   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
 973   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
 974   ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
 975   ED_TEXTBUTTON_ID_SAVE_LEVELSET,
 976   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
 977   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
 978   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
 979   ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
 980
 981   ED_NUM_TEXTBUTTONS
 982 };
 983
 984 #define ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
 985 #define ED_TAB_BUTTON_ID_LEVELCONFIG_LAST  ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
 986
 987 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
 988 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 989
 990 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
 991 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
 992
 993 // values for graphicbutton gadgets
 994 enum
 995 {
 996   ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
 997   ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
 998   ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
 999   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
1000
1001   ED_NUM_GRAPHICBUTTONS
1002 };
1003
1004 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
1005 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
1006
1007 // values for checkbutton gadgets
1008 enum
1009 {
1010   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
1011   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
1012   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
1013   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
1014   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
1015   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
1016   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
1017   ED_CHECKBUTTON_ID_BD_INTERMISSION,
1018   ED_CHECKBUTTON_ID_BD_PAL_TIMING,
1019   ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
1020   ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
1021   ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
1022   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
1023   ED_CHECKBUTTON_ID_STICK_ELEMENT,
1024   ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
1025   ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
1026   ED_CHECKBUTTON_ID_USE_SPRING_BUG,
1027   ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
1028   ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
1029   ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
1030   ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
1031   ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
1032   ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
1033   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
1034   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
1035   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
1036   ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
1037   ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
1038   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
1039   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
1040   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
1041   ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
1042   ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
1043   ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
1044   ED_CHECKBUTTON_ID_LAZY_RELOCATION,
1045   ED_CHECKBUTTON_ID_USE_START_ELEMENT,
1046   ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
1047   ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
1048   ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
1049   ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
1050   ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
1051   ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
1052   ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
1053   ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
1054   ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
1055   ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
1056   ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
1057   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
1058   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
1059   ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
1060   ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
1061   ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
1062   ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
1063   ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
1064   ED_CHECKBUTTON_ID_MM_LASER_RED,
1065   ED_CHECKBUTTON_ID_MM_LASER_GREEN,
1066   ED_CHECKBUTTON_ID_MM_LASER_BLUE,
1067   ED_CHECKBUTTON_ID_DF_LASER_RED,
1068   ED_CHECKBUTTON_ID_DF_LASER_GREEN,
1069   ED_CHECKBUTTON_ID_DF_LASER_BLUE,
1070   ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
1071   ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
1072   ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
1073   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
1074   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
1075   ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
1076   ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
1077   ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
1078   ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
1079   ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
1080   ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
1081   ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
1082   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
1083   ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
1084   ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
1085   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
1086   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
1087   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
1088   ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
1089   ED_CHECKBUTTON_ID_CHANGE_DELAY,
1090   ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
1091   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
1092   ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
1093   ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
1094   ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
1095   ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
1096   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
1097
1098   ED_NUM_CHECKBUTTONS
1099 };
1100
1101 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
1102 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
1103
1104 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
1105 #define ED_CHECKBUTTON_ID_LEVELSET_LAST  ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
1106
1107 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
1108 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
1109
1110 #define ED_CHECKBUTTON_ID_ENGINE_FIRST  ED_CHECKBUTTON_ID_BD_INTERMISSION
1111 #define ED_CHECKBUTTON_ID_ENGINE_LAST   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL
1112
1113 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
1114 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
1115 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
1116 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
1117 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
1118 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
1119
1120 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
1121 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
1122
1123 // values for radiobutton gadgets
1124 enum
1125 {
1126   ED_RADIOBUTTON_ID_PERCENTAGE,
1127   ED_RADIOBUTTON_ID_QUANTITY,
1128
1129   ED_NUM_RADIOBUTTONS
1130 };
1131
1132 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
1133 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
1134
1135 // values for drawing area gadgets
1136 enum
1137 {
1138   ED_DRAWING_ID_DRAWING_LEVEL,
1139   ED_DRAWING_ID_YAMYAM_CONTENT_0,
1140   ED_DRAWING_ID_YAMYAM_CONTENT_1,
1141   ED_DRAWING_ID_YAMYAM_CONTENT_2,
1142   ED_DRAWING_ID_YAMYAM_CONTENT_3,
1143   ED_DRAWING_ID_YAMYAM_CONTENT_4,
1144   ED_DRAWING_ID_YAMYAM_CONTENT_5,
1145   ED_DRAWING_ID_YAMYAM_CONTENT_6,
1146   ED_DRAWING_ID_YAMYAM_CONTENT_7,
1147   ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
1148   ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
1149   ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
1150   ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
1151   ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
1152   ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
1153   ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
1154   ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
1155   ED_DRAWING_ID_ANDROID_CONTENT,
1156   ED_DRAWING_ID_AMOEBA_CONTENT,
1157   ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
1158   ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
1159   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
1160   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
1161   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
1162   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
1163   ED_DRAWING_ID_START_ELEMENT,
1164   ED_DRAWING_ID_ARTWORK_ELEMENT,
1165   ED_DRAWING_ID_EXPLOSION_ELEMENT,
1166   ED_DRAWING_ID_INVENTORY_CONTENT,
1167   ED_DRAWING_ID_MM_BALL_CONTENT,
1168   ED_DRAWING_ID_CUSTOM_GRAPHIC,
1169   ED_DRAWING_ID_CUSTOM_CONTENT,
1170   ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
1171   ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
1172   ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
1173   ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
1174   ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
1175   ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
1176   ED_DRAWING_ID_GROUP_CONTENT,
1177   ED_DRAWING_ID_RANDOM_BACKGROUND,
1178
1179   ED_NUM_DRAWING_AREAS
1180 };
1181
1182 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
1183 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
1184
1185
1186 // ----------------------------------------------------------------------------
1187 // some internally used definitions
1188 // ----------------------------------------------------------------------------
1189
1190 // values for CopyLevelToUndoBuffer()
1191 #define UNDO_IMMEDIATE                  0
1192 #define UNDO_ACCUMULATE                 1
1193
1194 // values for scrollbars
1195 #define ED_SCROLL_NO                    0
1196 #define ED_SCROLL_LEFT                  1
1197 #define ED_SCROLL_RIGHT                 2
1198 #define ED_SCROLL_UP                    4
1199 #define ED_SCROLL_DOWN                  8
1200
1201 // screens in the level editor
1202 #define ED_MODE_DRAWING                 0
1203 #define ED_MODE_LEVELCONFIG             1
1204 #define ED_MODE_PROPERTIES              2
1205 #define ED_MODE_PALETTE                 3
1206
1207 // sub-screens in the global settings section
1208 #define ED_MODE_LEVELCONFIG_LEVEL       ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
1209 #define ED_MODE_LEVELCONFIG_LEVELSET    ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET
1210 #define ED_MODE_LEVELCONFIG_EDITOR      ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR
1211 #define ED_MODE_LEVELCONFIG_ENGINE      ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
1212
1213 // sub-screens in the element properties section
1214 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1215 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1216 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1217 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1218 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1219
1220 // how many steps can be cancelled
1221 #define NUM_UNDO_STEPS                  (64 + 1)
1222
1223 // values for elements with score for certain actions
1224 #define MIN_SCORE                       0
1225 #define MAX_SCORE                       999
1226
1227 // values for elements with count for collecting
1228 #define MIN_COLLECT_COUNT               0
1229 #define MAX_COLLECT_COUNT               999
1230
1231 // values for random placement
1232 #define RANDOM_USE_PERCENTAGE           0
1233 #define RANDOM_USE_QUANTITY             1
1234
1235 // values for level set save mode
1236 #define LEVELSET_SAVE_MODE_UPDATE       0
1237 #define LEVELSET_SAVE_MODE_CREATE       1
1238
1239 // default value for element tile size in drawing area
1240 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1241 #define DEFAULT_EDITOR_TILESIZE_MM      TILESIZE
1242
1243
1244 // ----------------------------------------------------------------------------
1245 // some internally used data structure definitions
1246 // ----------------------------------------------------------------------------
1247
1248 static struct
1249 {
1250   int graphic;
1251   int gadget_id;
1252   struct XYTileSize *pos;
1253   int gadget_type;
1254   char *infotext;
1255   char shortcut;
1256 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1257 {
1258   // note: some additional characters are already reserved for "cheat mode"
1259   // shortcuts (":XYZ" style) -- for details, see "events.c"
1260
1261   // ---------- toolbox control buttons ---------------------------------------
1262
1263   {
1264     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1265     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1266     "draw single items",                        's'
1267   },
1268   {
1269     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1270     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1271     "draw connected items",                     'd'
1272   },
1273   {
1274     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1275     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1276     "draw lines",                               'l'
1277   },
1278   {
1279     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1280     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1281     "draw arcs",                                'a'
1282   },
1283   {
1284     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1285     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1286     "draw outline rectangles",                  'r'
1287   },
1288   {
1289     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1290     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1291     "draw filled rectangles",                   'R'
1292   },
1293   {
1294     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1295     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1296     "wrap (rotate) level up",                   0
1297   },
1298   {
1299     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1300     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1301     "enter text elements",                      't'
1302   },
1303   {
1304     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1305     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1306     "flood fill",                               'f'
1307   },
1308   {
1309     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1310     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1311     "wrap (rotate) level left",                 0
1312   },
1313   {
1314     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1315     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1316     "zoom level tile size",                     '+'
1317   },
1318   {
1319     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1320     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1321     "wrap (rotate) level right",                0
1322   },
1323   {
1324     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1325     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1326     "random element placement",                 0
1327   },
1328   {
1329     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1330     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1331     "grab brush",                               'b'
1332   },
1333   {
1334     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1335     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1336     "wrap (rotate) level down",                 0
1337   },
1338   {
1339     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1340     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1341     "pick drawing element",                     ','
1342   },
1343
1344   // ---------- level control buttons -----------------------------------------
1345
1346   {
1347     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1348     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1349     "undo/redo last operation",                 'u'
1350   },
1351   {
1352     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_CONF,
1353     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1354     "level and editor settings",                'I'
1355   },
1356   {
1357     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1358     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1359     "save level",                               'S'
1360   },
1361   {
1362     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1363     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1364     "clear level",                              'C'
1365   },
1366   {
1367     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1368     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1369     "test level",                               'T'
1370   },
1371   {
1372     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1373     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1374     "exit level editor",                        'E'
1375   },
1376
1377   // ---------- CE and GE control buttons -------------------------------------
1378
1379   {
1380     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1381     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1382     "copy settings from other element",         0
1383   },
1384   {
1385     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1386     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1387     "copy settings to other element",           0
1388   },
1389   {
1390     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1391     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1392     "exchange element with other element",      0
1393   },
1394   {
1395     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1396     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1397     "copy settings from this element",          0
1398   },
1399   {
1400     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1401     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1402     "paste settings to this element",           0
1403   },
1404
1405   // ---------- palette control buttons ---------------------------------------
1406
1407   {
1408     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1409     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1410     "properties of drawing element",            'p'
1411   },
1412   {
1413     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1414     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1415     "properties of drawing element 1",          '1'
1416   },
1417   {
1418     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1419     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1420     "properties of drawing element 2",          '2'
1421   },
1422   {
1423     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1424     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1425     "properties of drawing element 3",          '3'
1426   },
1427   {
1428     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1429     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1430     "show list of elements",                    'e'
1431   }
1432 };
1433
1434 static int random_placement_value = 10;
1435 static int random_placement_method = RANDOM_USE_QUANTITY;
1436 static int random_placement_background_element = EL_SAND;
1437 static boolean random_placement_background_restricted = FALSE;
1438 static boolean stick_element_properties_window = FALSE;
1439 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1440 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1441 static struct ElementChangeInfo custom_element_change;
1442 static struct ElementGroupInfo group_element_info;
1443 static struct ElementInfo custom_element;
1444
1445 static char levelset_name[MAX_LEVEL_NAME_LEN + 1];
1446 static char levelset_author[MAX_LEVEL_AUTHOR_LEN + 1];
1447 static int levelset_num_levels = 100;
1448 static boolean levelset_use_levelset_artwork = FALSE;
1449 static boolean levelset_copy_level_template = FALSE;
1450 static int levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
1451
1452 static struct
1453 {
1454   int gadget_type_id;
1455   int x, y;
1456   int min_value, max_value;
1457   int gadget_id_down, gadget_id_up;
1458   int gadget_id_text;
1459   int gadget_id_align;
1460   int *value;
1461   char *text_above, *text_left, *text_right;
1462 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1463 {
1464   // ---------- current level number ------------------------------------------
1465
1466   {
1467     ED_COUNTER_ID_SELECT_LEVEL,
1468     -1, -1,     // these values are not constant, but can change at runtime
1469     1,                                  100,
1470     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1471     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1472     &level_nr,
1473     NULL,                               NULL, NULL
1474   },
1475
1476   // ---------- level and editor settings -------------------------------------
1477
1478   {
1479     ED_COUNTER_ID_LEVEL_XSIZE,
1480     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1481     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1482     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1483     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1484     &level.fieldx,
1485     "playfield size:",                  NULL, "width",
1486   },
1487   {
1488     ED_COUNTER_ID_LEVEL_YSIZE,
1489     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1490     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1491     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1492     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1493     &level.fieldy,
1494     NULL,                               " ", "height",
1495   },
1496   {
1497     ED_COUNTER_ID_LEVEL_GEMSLIMIT,
1498     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1499     0,                                  999,
1500     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1501     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1502     &level.gems_needed,
1503     NULL,                               "number of gems to collect:", NULL
1504   },
1505   {
1506     ED_COUNTER_ID_LEVEL_TIMELIMIT,
1507     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
1508     0,                                  9999,
1509     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1510     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1511     &level.time,
1512     "time or step limit to solve level:", NULL, NULL
1513   },
1514   {
1515     ED_COUNTER_ID_LEVEL_TIMESCORE,
1516     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
1517     0,                                  999,
1518     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1519     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1520     &level.score[SC_TIME_BONUS],
1521     "score for time or steps left:",    NULL, NULL
1522   },
1523   {
1524     ED_COUNTER_ID_LEVEL_RANDOM_SEED,
1525     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(13),
1526     0,                                  9999,
1527     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1528     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1529     &level.random_seed,
1530     NULL,                               "random seed:", "(0 => random)"
1531   },
1532   {
1533     ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
1534     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1535     1,                                  MAX_LEVELS,
1536     GADGET_ID_LEVELSET_NUM_LEVELS_DOWN, GADGET_ID_LEVELSET_NUM_LEVELS_UP,
1537     GADGET_ID_LEVELSET_NUM_LEVELS_TEXT, GADGET_ID_NONE,
1538     &levelset_num_levels,
1539     "number of levels:",                NULL, NULL,
1540   },
1541   {
1542     ED_COUNTER_ID_LEVEL_RANDOM,
1543     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1544     1,                                  100,
1545     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1546     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1547     &random_placement_value,
1548     "random element placement:",        NULL, "in"
1549   },
1550   {
1551     ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
1552     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1553     50,                                 500,
1554     GADGET_ID_BD_CYCLE_DELAY_MS_DOWN,   GADGET_ID_BD_CYCLE_DELAY_MS_UP,
1555     GADGET_ID_BD_CYCLE_DELAY_MS_TEXT,   GADGET_ID_NONE,
1556     &level.bd_cycle_delay_ms,
1557     NULL,                               NULL, "game cycle delay (ms)"
1558   },
1559   {
1560     ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
1561     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1562     0,                                  32,
1563     GADGET_ID_BD_CYCLE_DELAY_C64_DOWN,  GADGET_ID_BD_CYCLE_DELAY_C64_UP,
1564     GADGET_ID_BD_CYCLE_DELAY_C64_TEXT,  GADGET_ID_NONE,
1565     &level.bd_cycle_delay_c64,
1566     NULL,                               NULL, "game cycle delay (C64-style)"
1567   },
1568   {
1569     ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
1570     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1571     1,                                  40,
1572     GADGET_ID_BD_HATCHING_DELAY_CYCLES_DOWN,    GADGET_ID_BD_HATCHING_DELAY_CYCLES_UP,
1573     GADGET_ID_BD_HATCHING_DELAY_CYCLES_TEXT,    GADGET_ID_NONE,
1574     &level.bd_hatching_delay_cycles,
1575     NULL,                               NULL, "hatching delay (cycles)"
1576   },
1577   {
1578     ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
1579     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1580     1,                                  40,
1581     GADGET_ID_BD_HATCHING_DELAY_SECONDS_DOWN,   GADGET_ID_BD_HATCHING_DELAY_SECONDS_UP,
1582     GADGET_ID_BD_HATCHING_DELAY_SECONDS_TEXT,   GADGET_ID_NONE,
1583     &level.bd_hatching_delay_seconds,
1584     NULL,                               NULL, "hatching delay (seconds)"
1585   },
1586
1587   // ---------- element settings: configure (various elements) ----------------
1588
1589   {
1590     ED_COUNTER_ID_BD_PUSHING_PROB,
1591     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1592     0,                                  100,
1593     GADGET_ID_BD_PUSHING_PROB_DOWN,     GADGET_ID_BD_PUSHING_PROB_UP,
1594     GADGET_ID_BD_PUSHING_PROB_TEXT,     GADGET_ID_NONE,
1595     &level.bd_pushing_prob,
1596     NULL,                               NULL, "push probability"
1597   },
1598   {
1599     ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
1600     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1601     0,                                  100,
1602     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_DOWN,  GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_UP,
1603     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_TEXT,  GADGET_ID_NONE,
1604     &level.bd_pushing_prob_with_sweet,
1605     NULL,                               NULL, "push probability with sweet"
1606   },
1607   {
1608     ED_COUNTER_ID_ELEMENT_VALUE1,
1609     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1610     MIN_SCORE,                          MAX_SCORE,
1611     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1612     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1613     NULL,                               // will be set when used
1614     NULL,                               NULL, NULL
1615   },
1616   {
1617     ED_COUNTER_ID_ELEMENT_VALUE2,
1618     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1619     MIN_SCORE,                          MAX_SCORE,
1620     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1621     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1622     NULL,                               // will be set when used
1623     NULL,                               NULL, NULL
1624   },
1625   {
1626     ED_COUNTER_ID_ELEMENT_VALUE3,
1627     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1628     MIN_SCORE,                          MAX_SCORE,
1629     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1630     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1631     NULL,                               // will be set when used
1632     NULL,                               NULL, NULL
1633   },
1634   {
1635     ED_COUNTER_ID_ELEMENT_VALUE4,
1636     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1637     MIN_SCORE,                          MAX_SCORE,
1638     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1639     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1640     NULL,                               // will be set when used
1641     NULL,                               NULL, NULL
1642   },
1643   {
1644     ED_COUNTER_ID_YAMYAM_CONTENT,
1645     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1646     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1647     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1648     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1649     &level.num_yamyam_contents,
1650     NULL,                               NULL, "number of content areas"
1651   },
1652   {
1653     ED_COUNTER_ID_BALL_CONTENT,
1654     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1655     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1656     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1657     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1658     &level.num_ball_contents,
1659     NULL,                               NULL, "number of content areas"
1660   },
1661   {
1662     ED_COUNTER_ID_ANDROID_CONTENT,
1663     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1664     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1665     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1666     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1667     &level.num_android_clone_elements,
1668     NULL,                               NULL, "number of clonable elements"
1669   },
1670   {
1671     ED_COUNTER_ID_ENVELOPE_XSIZE,
1672     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1673     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1674     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1675     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1676     NULL,                               // will be set when used
1677     NULL,                               NULL, "width",
1678   },
1679   {
1680     ED_COUNTER_ID_ENVELOPE_YSIZE,
1681     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1682     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1683     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1684     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1685     NULL,                               // will be set when used
1686     NULL,                               " ", "height",
1687   },
1688   {
1689     ED_COUNTER_ID_INVENTORY_SIZE,
1690     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1691     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1692     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1693     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1694     &level.initial_inventory_size[0],
1695     NULL,                               NULL, "number of inventory elements"
1696   },
1697   {
1698     ED_COUNTER_ID_MM_BALL_CONTENT,
1699     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1700     MIN_ELEMENTS_IN_GROUP,              MAX_MM_BALL_CONTENTS,
1701     GADGET_ID_MM_BALL_CONTENT_DOWN,     GADGET_ID_MM_BALL_CONTENT_UP,
1702     GADGET_ID_MM_BALL_CONTENT_TEXT,     GADGET_ID_NONE,
1703     &level.num_mm_ball_contents,
1704     NULL,                               NULL, "number of content elements"
1705   },
1706
1707   // ---------- element settings: configure 1 (custom elements) ---------------
1708
1709   {
1710     ED_COUNTER_ID_CUSTOM_SCORE,
1711     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1712     MIN_SCORE,                          MAX_SCORE,
1713     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1714     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1715     &custom_element.collect_score_initial,
1716     NULL,                               "CE score", " "
1717   },
1718   {
1719     ED_COUNTER_ID_CUSTOM_GEMCOUNT,
1720     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1721     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1722     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1723     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1724     &custom_element.collect_count_initial,
1725     NULL,                               "CE count", NULL
1726   },
1727   {
1728     ED_COUNTER_ID_CUSTOM_VALUE_FIX,
1729     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1730     0,                                  9999,
1731     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1732     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1733     &custom_element.ce_value_fixed_initial,
1734     NULL,                               "CE value", NULL
1735   },
1736   {
1737     ED_COUNTER_ID_CUSTOM_VALUE_RND,
1738     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1739     0,                                  9999,
1740     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1741     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1742     &custom_element.ce_value_random_initial,
1743     NULL,                               "+random", NULL
1744   },
1745   {
1746     ED_COUNTER_ID_PUSH_DELAY_FIX,
1747     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1748     0,                                  999,
1749     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1750     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1751     &custom_element.push_delay_fixed,
1752     NULL,                               "push delay", NULL
1753   },
1754   {
1755     ED_COUNTER_ID_PUSH_DELAY_RND,
1756     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1757     0,                                  999,
1758     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1759     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1760     &custom_element.push_delay_random,
1761     NULL,                               "+random", NULL
1762   },
1763   {
1764     ED_COUNTER_ID_DROP_DELAY_FIX,
1765     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1766     0,                                  999,
1767     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1768     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1769     &custom_element.drop_delay_fixed,
1770     NULL,                               "drop delay", NULL
1771   },
1772   {
1773     ED_COUNTER_ID_DROP_DELAY_RND,
1774     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1775     0,                                  999,
1776     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1777     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1778     &custom_element.drop_delay_random,
1779     NULL,                               "+random", NULL
1780   },
1781
1782   // ---------- element settings: configure 2 (custom elements) ---------------
1783
1784   {
1785     ED_COUNTER_ID_MOVE_DELAY_FIX,
1786     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1787     0,                                  999,
1788     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1789     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1790     &custom_element.move_delay_fixed,
1791     NULL,                               "move delay", NULL
1792   },
1793   {
1794     ED_COUNTER_ID_MOVE_DELAY_RND,
1795     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1796     0,                                  999,
1797     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1798     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1799     &custom_element.move_delay_random,
1800     NULL,                               "+random", NULL
1801   },
1802   {
1803     ED_COUNTER_ID_STEP_DELAY_FIX,
1804     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1805     0,                                  999,
1806     GADGET_ID_STEP_DELAY_FIX_DOWN,      GADGET_ID_STEP_DELAY_FIX_UP,
1807     GADGET_ID_STEP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1808     &custom_element.step_delay_fixed,
1809     NULL,                               "step delay", NULL
1810   },
1811   {
1812     ED_COUNTER_ID_STEP_DELAY_RND,
1813     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1814     0,                                  999,
1815     GADGET_ID_STEP_DELAY_RND_DOWN,      GADGET_ID_STEP_DELAY_RND_UP,
1816     GADGET_ID_STEP_DELAY_RND_TEXT,      GADGET_ID_STEP_DELAY_FIX_UP,
1817     &custom_element.step_delay_random,
1818     NULL,                               "+random", NULL
1819   },
1820   {
1821     ED_COUNTER_ID_EXPLOSION_DELAY,
1822     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1823     0,                                  999,
1824     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1825     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1826     &custom_element.explosion_delay,
1827     NULL,                               "explosion delay", NULL
1828   },
1829   {
1830     ED_COUNTER_ID_IGNITION_DELAY,
1831     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
1832     0,                                  999,
1833     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1834     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1835     &custom_element.ignition_delay,
1836     NULL,                               "ignition delay", "(by fire)"
1837   },
1838
1839   // ---------- element settings: configure (group elements) ------------------
1840
1841   {
1842     ED_COUNTER_ID_GROUP_CONTENT,
1843     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1844     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1845     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1846     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1847     &group_element_info.num_elements,
1848     NULL,                               NULL, "number of elements in group"
1849   },
1850
1851   // ---------- element settings: advanced (custom elements) ------------------
1852
1853   {
1854     ED_COUNTER_ID_CHANGE_DELAY_FIX,
1855     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1856     0,                                  999,
1857     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1858     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1859     &custom_element_change.delay_fixed,
1860     NULL,                               "CE delay", NULL,
1861   },
1862   {
1863     ED_COUNTER_ID_CHANGE_DELAY_RND,
1864     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1865     0,                                  999,
1866     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1867     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1868     &custom_element_change.delay_random,
1869     NULL,                               "+random", NULL
1870   },
1871   {
1872     ED_COUNTER_ID_CHANGE_CONT_RND,
1873     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1874     0,                                  100,
1875     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1876     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1877     &custom_element_change.random_percentage,
1878     NULL,                               "use random replace:", "%"
1879   },
1880 };
1881
1882 static struct
1883 {
1884   int gadget_type_id;
1885   int x, y;
1886   int gadget_id;
1887   int size;
1888   char *value;
1889   char *text_above, *infotext;
1890 } textinput_info[ED_NUM_TEXTINPUT] =
1891 {
1892   {
1893     ED_TEXTINPUT_ID_LEVEL_NAME,
1894     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1895     GADGET_ID_LEVEL_NAME,
1896     MAX_LEVEL_NAME_LEN,
1897     level.name,
1898     "Title:", "Title for this level"
1899   },
1900   {
1901     ED_TEXTINPUT_ID_LEVEL_AUTHOR,
1902     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1903     GADGET_ID_LEVEL_AUTHOR,
1904     MAX_LEVEL_AUTHOR_LEN,
1905     level.author,
1906     "Author:", "Author for this level"
1907   },
1908   {
1909     ED_TEXTINPUT_ID_LEVELSET_NAME,
1910     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1911     GADGET_ID_LEVELSET_NAME,
1912     MAX_LEVEL_NAME_LEN,
1913     levelset_name,
1914     "Title:", "Title for this or new level set"
1915   },
1916   {
1917     ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
1918     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1919     GADGET_ID_LEVELSET_AUTHOR,
1920     MAX_LEVEL_AUTHOR_LEN,
1921     levelset_author,
1922     "Author:", "Author for this or new level set"
1923   },
1924   {
1925     ED_TEXTINPUT_ID_ELEMENT_NAME,
1926     -1, -1,     // these values are not constant, but can change at runtime
1927     GADGET_ID_ELEMENT_NAME,
1928     MAX_ELEMENT_NAME_LEN - 2,           // currently 2 chars less editable
1929     custom_element.description,
1930     NULL, "Element name"
1931   }
1932 };
1933
1934 static struct
1935 {
1936   int gadget_type_id;
1937   int x, y;
1938   int gadget_id;
1939   int xsize, ysize;
1940   char *value;
1941   char *text_above, *text_above_cropped, *infotext;
1942 } textarea_info[ED_NUM_TEXTAREAS] =
1943 {
1944   {
1945     ED_TEXTAREA_ID_ENVELOPE_INFO,
1946     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1947     GADGET_ID_ENVELOPE_INFO,
1948     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1949     NULL,
1950     "Envelope Content:", "Envelope Content (cropped):", "Envelope Content"
1951   }
1952 };
1953
1954 static struct ValueTextInfo options_time_or_steps[] =
1955 {
1956   { 0,                          "seconds"                       },
1957   { 1,                          "steps"                         },
1958
1959   { -1,                         NULL                            }
1960 };
1961
1962 static struct ValueTextInfo options_time_score_base[] =
1963 {
1964   { 1,                          "per second/step"               },
1965   { 10,                         "per 10 seconds/steps"          },
1966
1967   { -1,                         NULL                            }
1968 };
1969
1970 static struct ValueTextInfo options_game_engine_type[] =
1971 {
1972   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
1973   { GAME_ENGINE_TYPE_BD,        "Boulder Dash"                  },
1974   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
1975   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
1976   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
1977
1978   { -1,                         NULL                            }
1979 };
1980
1981 static struct ValueTextInfo options_levelset_save_mode[] =
1982 {
1983   { LEVELSET_SAVE_MODE_UPDATE,  "Update this level set"         },
1984   { LEVELSET_SAVE_MODE_CREATE,  "Create new level set"          },
1985
1986   { -1,                         NULL                            }
1987 };
1988
1989 static struct ValueTextInfo options_wind_direction[] =
1990 {
1991   { MV_START_NONE,              "none"                          },
1992   { MV_START_LEFT,              "left"                          },
1993   { MV_START_RIGHT,             "right"                         },
1994   { MV_START_UP,                "up"                            },
1995   { MV_START_DOWN,              "down"                          },
1996
1997   { -1,                         NULL                            }
1998 };
1999
2000 static struct ValueTextInfo options_player_speed[] =
2001 {
2002   { 0,                          "frozen"                        },
2003   { 1,                          "very slow"                     },
2004   { 2,                          "slow"                          },
2005   { 4,                          "normal"                        },
2006   { 8,                          "fast"                          },
2007   { 16,                         "very fast"                     },
2008   { 32,                         "ultrafast"                     },
2009
2010   { -1,                         NULL                            }
2011 };
2012
2013 static struct ValueTextInfo options_access_type[] =
2014 {
2015   { EP_WALKABLE,                "walkable"                      },
2016   { EP_PASSABLE,                "passable"                      },
2017
2018   { -1,                         NULL                            }
2019 };
2020
2021 static struct ValueTextInfo options_access_layer[] =
2022 {
2023   { EP_ACCESSIBLE_OVER,         "over"                          },
2024   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
2025   { EP_ACCESSIBLE_UNDER,        "under"                         },
2026
2027   { -1,                         NULL                            }
2028 };
2029
2030 static struct ValueTextInfo options_access_protected[] =
2031 {
2032   { 0,                          "unprotected"                   },
2033   { 1,                          "protected"                     },
2034
2035   { -1,                         NULL                            }
2036 };
2037
2038 static struct ValueTextInfo options_access_direction[] =
2039 {
2040   { MV_NO_DIRECTION,            "no direction"                  },
2041   { MV_LEFT,                    "left"                          },
2042   { MV_RIGHT,                   "right"                         },
2043   { MV_UP,                      "up"                            },
2044   { MV_DOWN,                    "down"                          },
2045   { MV_LEFT  | MV_UP,           "left + up"                     },
2046   { MV_LEFT  | MV_DOWN,         "left + down"                   },
2047   { MV_RIGHT | MV_UP,           "right + up"                    },
2048   { MV_RIGHT | MV_DOWN,         "right + down"                  },
2049   { MV_HORIZONTAL,              "horizontal"                    },
2050   { MV_VERTICAL,                "vertical"                      },
2051   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
2052   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
2053   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
2054   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
2055   { MV_ALL_DIRECTIONS,          "all directions"                },
2056
2057   { -1,                         NULL                            }
2058 };
2059
2060 static struct ValueTextInfo options_walk_to_action[] =
2061 {
2062   { EP_DIGGABLE,                "diggable"                      },
2063   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
2064   { EP_DROPPABLE,               "collectible & droppable"       },
2065   { EP_THROWABLE,               "collectible & throwable"       },
2066   { EP_PUSHABLE,                "pushable"                      },
2067
2068   { -1,                         NULL                            }
2069 };
2070
2071 static struct ValueTextInfo options_move_pattern[] =
2072 {
2073   { MV_LEFT,                    "left"                          },
2074   { MV_RIGHT,                   "right"                         },
2075   { MV_UP,                      "up"                            },
2076   { MV_DOWN,                    "down"                          },
2077   { MV_HORIZONTAL,              "horizontal"                    },
2078   { MV_VERTICAL,                "vertical"                      },
2079   { MV_ALL_DIRECTIONS,          "all directions"                },
2080   { MV_WIND_DIRECTION,          "wind direction"                },
2081   { MV_TOWARDS_PLAYER,          "towards player"                },
2082   { MV_AWAY_FROM_PLAYER,        "away from player"              },
2083   { MV_ALONG_LEFT_SIDE,         "along left side"               },
2084   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
2085   { MV_TURNING_LEFT,            "turning left"                  },
2086   { MV_TURNING_RIGHT,           "turning right"                 },
2087   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
2088   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
2089   { MV_TURNING_RANDOM,          "turning random"                },
2090   { MV_MAZE_RUNNER,             "maze runner style"             },
2091   { MV_MAZE_HUNTER,             "maze hunter style"             },
2092   { MV_WHEN_PUSHED,             "when pushed"                   },
2093   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
2094
2095   { -1,                         NULL                            }
2096 };
2097
2098 static struct ValueTextInfo options_move_direction[] =
2099 {
2100   { MV_START_AUTOMATIC,         "automatic"                     },
2101   { MV_START_LEFT,              "left"                          },
2102   { MV_START_RIGHT,             "right"                         },
2103   { MV_START_UP,                "up"                            },
2104   { MV_START_DOWN,              "down"                          },
2105   { MV_START_RANDOM,            "random"                        },
2106   { MV_START_PREVIOUS,          "previous"                      },
2107
2108   { -1,                         NULL                            }
2109 };
2110
2111 static struct ValueTextInfo options_move_stepsize[] =
2112 {
2113   { 0,                          "not moving"                    },
2114   { 1,                          "very slow"                     },
2115   { 2,                          "slow"                          },
2116   { 4,                          "normal"                        },
2117   { 8,                          "fast"                          },
2118   { 16,                         "very fast"                     },
2119   { 32,                         "even faster"                   },
2120
2121   { -1,                         NULL                            }
2122 };
2123
2124 static struct ValueTextInfo options_move_leave_type[] =
2125 {
2126   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
2127   { LEAVE_TYPE_LIMITED,         "change it to"                  },
2128
2129   { -1,                         NULL                            }
2130 };
2131
2132 static struct ValueTextInfo options_smash_targets[] =
2133 {
2134   { EP_CAN_SMASH_PLAYER,        "player"                        },
2135 #if 0
2136   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
2137 #endif
2138   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
2139
2140   { -1,                         NULL                            }
2141 };
2142
2143 static struct ValueTextInfo options_slippery_type[] =
2144 {
2145   { SLIPPERY_ANY_RANDOM,        "random"                        },
2146   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
2147   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
2148   { SLIPPERY_ONLY_LEFT,         "only left"                     },
2149   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
2150
2151   { -1,                         NULL                            }
2152 };
2153
2154 static struct ValueTextInfo options_deadliness[] =
2155 {
2156   { EP_DONT_RUN_INTO,           "running into"                  },
2157   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
2158   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
2159   { EP_DONT_TOUCH,              "touching"                      },
2160
2161   { -1,                         NULL                            }
2162 };
2163
2164 static struct ValueTextInfo options_explosion_type[] =
2165 {
2166   { EXPLODES_3X3,               "3x3"                           },
2167   { EXPLODES_CROSS,             "3+3"                           },
2168   { EXPLODES_1X1,               "1x1"                           },
2169
2170   { -1,                         NULL                            }
2171 };
2172
2173 static struct ValueTextInfo options_time_units[] =
2174 {
2175   { 1,                          "frames"                        },
2176   { FRAMES_PER_SECOND,          "seconds"                       },
2177
2178   { -1,                         NULL                            }
2179 };
2180
2181 static struct ValueTextInfo options_change_direct_action[] =
2182 {
2183   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
2184   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
2185   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
2186   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
2187   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
2188   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
2189   { CE_LEFT_BY_PLAYER,          "left by player"                },
2190   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
2191   { CE_SWITCHED,                "switched"                      },
2192   { CE_HITTING_SOMETHING,       "hitting something"             },
2193   { CE_HIT_BY_SOMETHING,        "hit by something"              },
2194 #if 0
2195   { CE_BLOCKED,                 "blocked"                       },
2196 #endif
2197   { CE_IMPACT,                  "impact (on something)"         },
2198   { CE_SMASHED,                 "smashed (from above)"          },
2199 #if 0
2200   { CE_VALUE_CHANGES,           "CE value changes"              },
2201   { CE_SCORE_CHANGES,           "CE score changes"              },
2202 #endif
2203   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
2204   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
2205   { CE_UNDEFINED,               " "                             },
2206   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2207   { CE_CLICKED_BY_MOUSE,        "clicked by mouse"              },
2208   { CE_PRESSED_BY_MOUSE,        "pressed by mouse"              },
2209   { CE_UNDEFINED,               " "                             },
2210   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2211   { CE_NEXT_TO_PLAYER,          "next to player"                },
2212
2213   { -1,                         NULL                            }
2214 };
2215
2216 static struct ValueTextInfo options_change_other_action[] =
2217 {
2218   { CE_PLAYER_TOUCHES_X,        "player touches"                },
2219   { CE_PLAYER_PRESSES_X,        "player presses"                },
2220   { CE_PLAYER_SWITCHES_X,       "player switches"               },
2221   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
2222   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
2223   { CE_PLAYER_ENTERS_X,         "player enters"                 },
2224   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
2225   { CE_PLAYER_DIGS_X,           "player digs"                   },
2226   { CE_PLAYER_COLLECTS_X,       "player collects"               },
2227   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
2228   { CE_TOUCHING_X,              "touching"                      },
2229   { CE_HITTING_X,               "hitting"                       },
2230   { CE_DIGGING_X,               "digging"                       },
2231   { CE_HIT_BY_X,                "hit by"                        },
2232   { CE_SWITCH_OF_X,             "switch of"                     },
2233   { CE_CHANGE_OF_X,             "change by page of"             },
2234   { CE_EXPLOSION_OF_X,          "explosion of"                  },
2235   { CE_MOVE_OF_X,               "move of"                       },
2236   { CE_CREATION_OF_X,           "creation of"                   },
2237   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
2238   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
2239   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
2240   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
2241   { CE_UNDEFINED,               " "                             },
2242   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2243   { CE_MOUSE_CLICKED_ON_X,      "mouse clicked on"              },
2244   { CE_MOUSE_PRESSED_ON_X,      "mouse pressed on"              },
2245   { CE_UNDEFINED,               " "                             },
2246   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2247   { CE_PLAYER_NEXT_TO_X,        "player next to"                },
2248   { CE_NEXT_TO_X,               "next to"                       },
2249
2250   { -1,                         NULL                            }
2251 };
2252
2253 static struct ValueTextInfo options_change_trigger_side[] =
2254 {
2255   { CH_SIDE_LEFT,               "left"                          },
2256   { CH_SIDE_RIGHT,              "right"                         },
2257   { CH_SIDE_TOP,                "top"                           },
2258   { CH_SIDE_BOTTOM,             "bottom"                        },
2259   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
2260   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
2261   { CH_SIDE_ANY,                "any"                           },
2262
2263   { -1,                         NULL                            }
2264 };
2265
2266 static struct ValueTextInfo options_change_trigger_player[] =
2267 {
2268   { CH_PLAYER_1,                "1"                             },
2269   { CH_PLAYER_2,                "2"                             },
2270   { CH_PLAYER_3,                "3"                             },
2271   { CH_PLAYER_4,                "4"                             },
2272   { CH_PLAYER_ANY,              "any"                           },
2273
2274   { -1,                         NULL                            }
2275 };
2276
2277 static struct ValueTextInfo options_change_trigger_page[] =
2278 {
2279   { (1u << 0),                  "1"                             },
2280   { (1u << 1),                  "2"                             },
2281   { (1u << 2),                  "3"                             },
2282   { (1u << 3),                  "4"                             },
2283   { (1u << 4),                  "5"                             },
2284   { (1u << 5),                  "6"                             },
2285   { (1u << 6),                  "7"                             },
2286   { (1u << 7),                  "8"                             },
2287   { (1u << 8),                  "9"                             },
2288   { (1u << 9),                  "10"                            },
2289   { (1u << 10),                 "11"                            },
2290   { (1u << 11),                 "12"                            },
2291   { (1u << 12),                 "13"                            },
2292   { (1u << 13),                 "14"                            },
2293   { (1u << 14),                 "15"                            },
2294   { (1u << 15),                 "16"                            },
2295   { (1u << 16),                 "17"                            },
2296   { (1u << 17),                 "18"                            },
2297   { (1u << 18),                 "19"                            },
2298   { (1u << 19),                 "20"                            },
2299   { (1u << 20),                 "21"                            },
2300   { (1u << 21),                 "22"                            },
2301   { (1u << 22),                 "23"                            },
2302   { (1u << 23),                 "24"                            },
2303   { (1u << 24),                 "25"                            },
2304   { (1u << 25),                 "26"                            },
2305   { (1u << 26),                 "27"                            },
2306   { (1u << 27),                 "28"                            },
2307   { (1u << 28),                 "29"                            },
2308   { (1u << 29),                 "30"                            },
2309   { (1u << 30),                 "31"                            },
2310   { (1u << 31),                 "32"                            },
2311   { CH_PAGE_ANY,                "any"                           },
2312
2313   { -1,                         NULL                            }
2314 };
2315
2316 static struct ValueTextInfo options_change_replace_when[] =
2317 {
2318   { CP_WHEN_EMPTY,              "empty"                         },
2319   { CP_WHEN_WALKABLE,           "walkable"                      },
2320   { CP_WHEN_DIGGABLE,           "diggable"                      },
2321   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
2322   { CP_WHEN_REMOVABLE,          "removable"                     },
2323   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
2324
2325   { -1,                         NULL                            }
2326 };
2327
2328 static struct ValueTextInfo options_action_type[] =
2329 {
2330   { CA_NO_ACTION,               "no action"                     },
2331   { CA_UNDEFINED,               " "                             },
2332   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
2333   { CA_RESTART_LEVEL,           "restart level"                 },
2334   { CA_SHOW_ENVELOPE,           "show envelope"                 },
2335   { CA_SET_LEVEL_TIME,          "set time"                      },
2336   { CA_SET_LEVEL_SCORE,         "set score"                     },
2337   { CA_SET_LEVEL_GEMS,          "set gems"                      },
2338   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
2339   { CA_SET_LEVEL_RANDOM_SEED,   "set random seed"               },
2340   { CA_UNDEFINED,               " "                             },
2341   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
2342   { CA_MOVE_PLAYER,             "move player"                   },
2343   { CA_MOVE_PLAYER_NEW,         "move player new"               },
2344   { CA_EXIT_PLAYER,             "exit player"                   },
2345   { CA_KILL_PLAYER,             "kill player"                   },
2346   { CA_SET_PLAYER_KEYS,         "set keys"                      },
2347   { CA_SET_PLAYER_SPEED,        "set speed"                     },
2348   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
2349   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
2350   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
2351   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
2352   { CA_UNDEFINED,               " "                             },
2353   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
2354   { CA_SET_CE_VALUE,            "set CE value"                  },
2355   { CA_SET_CE_SCORE,            "set CE score"                  },
2356   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
2357   { CA_UNDEFINED,               " "                             },
2358   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
2359   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
2360
2361   { -1,                         NULL                            }
2362 };
2363
2364 static struct ValueTextInfo options_action_mode_none[] =
2365 {
2366   { CA_MODE_UNDEFINED,          " "                             },
2367
2368   { -1,                         NULL                            }
2369 };
2370
2371 static struct ValueTextInfo options_action_mode_assign[] =
2372 {
2373   { CA_MODE_SET,                "="                             },
2374
2375   { -1,                         NULL                            }
2376 };
2377
2378 static struct ValueTextInfo options_action_mode_add_remove[] =
2379 {
2380   { CA_MODE_ADD,                "+"                             },
2381   { CA_MODE_SUBTRACT,           "-"                             },
2382
2383   { -1,                         NULL                            }
2384 };
2385
2386 static struct ValueTextInfo options_action_mode_calculate[] =
2387 {
2388   { CA_MODE_SET,                "="                             },
2389   { CA_MODE_ADD,                "+"                             },
2390   { CA_MODE_SUBTRACT,           "-"                             },
2391   { CA_MODE_MULTIPLY,           "*"                             },
2392   { CA_MODE_DIVIDE,             "/"                             },
2393   { CA_MODE_MODULO,             "%"                             },
2394
2395   { -1,                         NULL                            }
2396 };
2397
2398 static struct ValueTextInfo options_action_arg_none[] =
2399 {
2400   { CA_ARG_UNDEFINED,           "         "                     },
2401
2402   { -1,                         NULL                            }
2403 };
2404
2405 static struct ValueTextInfo options_action_arg_player[] =
2406 {
2407   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2408   { CA_ARG_PLAYER_1,            "1"                             },
2409   { CA_ARG_PLAYER_2,            "2"                             },
2410   { CA_ARG_PLAYER_3,            "3"                             },
2411   { CA_ARG_PLAYER_4,            "4"                             },
2412   { CA_ARG_PLAYER_ANY,          "any"                           },
2413   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2414   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2415
2416   { -1,                         NULL                            }
2417 };
2418
2419 static struct ValueTextInfo options_action_arg_number[] =
2420 {
2421   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2422   { CA_ARG_0,                   "0"                             },
2423   { CA_ARG_1,                   "1"                             },
2424   { CA_ARG_2,                   "2"                             },
2425   { CA_ARG_3,                   "3"                             },
2426   { CA_ARG_4,                   "4"                             },
2427   { CA_ARG_5,                   "5"                             },
2428   { CA_ARG_10,                  "10"                            },
2429   { CA_ARG_100,                 "100"                           },
2430   { CA_ARG_1000,                "1000"                          },
2431   { CA_ARG_UNDEFINED,           " "                             },
2432   { CA_ARG_NUMBER_MIN,          "min"                           },
2433   { CA_ARG_NUMBER_MAX,          "max"                           },
2434   { CA_ARG_UNDEFINED,           " "                             },
2435   { CA_ARG_NUMBER_RESET,        "reset"                         },
2436   { CA_ARG_UNDEFINED,           " "                             },
2437   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2438   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2439   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2440   { CA_ARG_UNDEFINED,           " "                             },
2441   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2442   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2443   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2444   { CA_ARG_UNDEFINED,           " "                             },
2445   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2446   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2447   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2448   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2449   { CA_ARG_UNDEFINED,           " "                             },
2450   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2451   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2452   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2453   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2454
2455   { -1,                         NULL                            }
2456 };
2457
2458 static struct ValueTextInfo options_action_arg_value[] =
2459 {
2460   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2461   { CA_ARG_0,                   "0"                             },
2462   { CA_ARG_1,                   "1"                             },
2463   { CA_ARG_2,                   "2"                             },
2464   { CA_ARG_3,                   "3"                             },
2465   { CA_ARG_4,                   "4"                             },
2466   { CA_ARG_5,                   "5"                             },
2467   { CA_ARG_10,                  "10"                            },
2468   { CA_ARG_100,                 "100"                           },
2469   { CA_ARG_1000,                "1000"                          },
2470   { CA_ARG_UNDEFINED,           " "                             },
2471   { CA_ARG_NUMBER_MIN,          "min"                           },
2472   { CA_ARG_NUMBER_MAX,          "max"                           },
2473   { CA_ARG_UNDEFINED,           " "                             },
2474   { CA_ARG_NUMBER_RESET,        "reset"                         },
2475   { CA_ARG_UNDEFINED,           " "                             },
2476   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2477   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2478   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2479   { CA_ARG_UNDEFINED,           " "                             },
2480   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2481   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2482   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2483   { CA_ARG_UNDEFINED,           " "                             },
2484   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2485   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2486   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2487   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2488   { CA_ARG_UNDEFINED,           " "                             },
2489   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2490   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2491   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2492   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2493   { CA_ARG_UNDEFINED,           " "                             },
2494   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2495   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2496   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2497   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2498
2499   { -1,                         NULL                            }
2500 };
2501
2502 static struct ValueTextInfo options_action_arg_envelope[] =
2503 {
2504   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2505   { CA_ARG_1,                   "1"                             },
2506   { CA_ARG_2,                   "2"                             },
2507   { CA_ARG_3,                   "3"                             },
2508   { CA_ARG_4,                   "4"                             },
2509   { CA_ARG_UNDEFINED,           " "                             },
2510   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2511   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2512   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2513   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2514
2515   { -1,                         NULL                            }
2516 };
2517
2518 static struct ValueTextInfo options_action_arg_key[] =
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_5,                   "5"                             },
2526   { CA_ARG_6,                   "6"                             },
2527   { CA_ARG_7,                   "7"                             },
2528   { CA_ARG_8,                   "8"                             },
2529   { CA_ARG_UNDEFINED,           " "                             },
2530   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2531   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2532   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2533   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2534
2535   { -1,                         NULL                            }
2536 };
2537
2538 static struct ValueTextInfo options_action_arg_speed[] =
2539 {
2540   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2541   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2542   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2543   { CA_ARG_SPEED_SLOW,          "slow"                          },
2544   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2545   { CA_ARG_SPEED_FAST,          "fast"                          },
2546   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2547   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2548   { CA_ARG_UNDEFINED,           " "                             },
2549   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2550   { CA_ARG_SPEED_FASTER,        "faster"                        },
2551   { CA_ARG_UNDEFINED,           " "                             },
2552   { CA_ARG_SPEED_RESET,         "reset"                         },
2553
2554   { -1,                         NULL                            }
2555 };
2556
2557 static struct ValueTextInfo options_action_arg_shield[] =
2558 {
2559   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2560   { CA_ARG_SHIELD_OFF,          "off"                           },
2561   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2562   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2563
2564   { -1,                         NULL                            }
2565 };
2566
2567 static struct ValueTextInfo options_action_arg_artwork[] =
2568 {
2569   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2570   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2571   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2572   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2573   { CA_ARG_UNDEFINED,           " "                             },
2574   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2575
2576   { -1,                         NULL                            }
2577 };
2578
2579 static struct ValueTextInfo options_action_arg_gravity[] =
2580 {
2581   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2582   { CA_ARG_GRAVITY_ON,          "on"                            },
2583   { CA_ARG_GRAVITY_OFF,         "off"                           },
2584   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2585
2586   { -1,                         NULL                            }
2587 };
2588
2589 static struct ValueTextInfo options_action_arg_direction[] =
2590 {
2591   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2592   { CA_ARG_DIRECTION_NONE,      "none"                          },
2593   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2594   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2595   { CA_ARG_DIRECTION_UP,        "up"                            },
2596   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2597   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2598   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2599
2600   { -1,                         NULL                            }
2601 };
2602
2603 static struct ValueTextInfo options_action_arg_scan_mode[] =
2604 {
2605   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2606   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2607   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2608
2609   { -1,                         NULL                            }
2610 };
2611
2612 static struct ValueTextInfo options_action_arg_inventory[] =
2613 {
2614   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2615   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2616   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2617   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2618   { CA_ARG_UNDEFINED,           " "                             },
2619   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2620   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2621   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2622   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2623   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2624   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2625   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2626   { CA_ARG_UNDEFINED,           " "                             },
2627   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2628
2629   { -1,                         NULL                            }
2630 };
2631
2632 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2633 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2634 {
2635   { -1,                         NULL                            }
2636 };
2637
2638 static struct ValueTextInfo options_group_choice_mode[] =
2639 {
2640   { ANIM_RANDOM,                "random"                        },
2641   { ANIM_LOOP,                  "loop"                          },
2642   { ANIM_LINEAR,                "linear"                        },
2643   { ANIM_PINGPONG,              "pingpong"                      },
2644   { ANIM_PINGPONG2,             "pingpong 2"                    },
2645   { ANIM_LEVEL_NR,              "level number"                  },
2646
2647   { -1,                         NULL                            }
2648 };
2649
2650 static struct ValueTextInfo options_bd_scheduling_type[] =
2651 {
2652   { GD_SCHEDULING_MILLISECONDS,   "Milliseconds"                },
2653   { GD_SCHEDULING_BD1,            "BD1"                         },
2654   { GD_SCHEDULING_BD2,            "BD2"                         },
2655   { GD_SCHEDULING_PLCK,           "Construction Kit"            },
2656   { GD_SCHEDULING_CRDR,           "Crazy Dream 7"               },
2657   { GD_SCHEDULING_BD1_ATARI,      "Atari BD1"                   },
2658   { GD_SCHEDULING_BD2_PLCK_ATARI, "Atari BD2 / PLCK"            },
2659
2660   { -1,                           NULL                          }
2661 };
2662
2663 static struct ValueTextInfo *action_arg_modes[] =
2664 {
2665   options_action_mode_none,
2666   options_action_mode_assign,
2667   options_action_mode_add_remove,
2668   options_action_mode_calculate,
2669 };
2670
2671 static struct
2672 {
2673   int value;
2674   int mode;
2675   struct ValueTextInfo *options;
2676 }
2677 action_arg_options[] =
2678 {
2679   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2680   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2681   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2682   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2683   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2684   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2685   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2686   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2687   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2688   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2689   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2690   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2691   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2692   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2693   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2694   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2695   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2696   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2697   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2698   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2699   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2700   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2701
2702   { -1,                         FALSE,  NULL                            }
2703 };
2704
2705 static struct
2706 {
2707   int gadget_type_id;
2708   int x, y;
2709   int gadget_id;
2710   int gadget_id_align;
2711   int size;     // char size of selectbox or '-1' (dynamically determined)
2712   struct ValueTextInfo *options;
2713   int *value;
2714   char *text_above, *text_left, *text_right, *infotext;
2715 } selectbox_info[ED_NUM_SELECTBOX] =
2716 {
2717   // ---------- level and editor settings -------------------------------------
2718
2719   {
2720     ED_SELECTBOX_ID_TIME_OR_STEPS,
2721     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2722     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2723     -1,
2724     options_time_or_steps,
2725     &level.use_step_counter,
2726     NULL, NULL, "(0 => no limit)",      "time or step limit"
2727   },
2728   {
2729     ED_SELECTBOX_ID_TIME_SCORE_BASE,
2730     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2731     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2732     -1,
2733     options_time_score_base,
2734     &level.time_score_base,
2735     NULL, NULL, NULL,                   "time score for 1 or 10 seconds/steps"
2736   },
2737   {
2738     ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
2739     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2740     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2741     -1,
2742     options_game_engine_type,
2743     &level.game_engine_type,
2744     NULL, "game engine:", NULL,         "game engine"
2745   },
2746   {
2747     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
2748     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
2749     GADGET_ID_BD_SCHEDULING_TYPE,       GADGET_ID_NONE,
2750     -1,
2751     options_bd_scheduling_type,
2752     &level.bd_scheduling_type,
2753     NULL, "scheduling type:", NULL,     "level timing"
2754   },
2755   {
2756     ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
2757     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2758     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2759     -1,
2760     options_levelset_save_mode,
2761     &levelset_save_mode,
2762     "Action:", NULL, NULL,              "action when saving level set"
2763   },
2764
2765   // ---------- element settings: configure (several elements) ----------------
2766
2767   {
2768     ED_SELECTBOX_ID_WIND_DIRECTION,
2769     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2770     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2771     -1,
2772     options_wind_direction,
2773     &level.wind_direction_initial,
2774     NULL, "initial wind direction:", NULL,      "initial wind direction"
2775   },
2776   {
2777     ED_SELECTBOX_ID_PLAYER_SPEED,
2778     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2779     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2780     -1,
2781     options_player_speed,
2782     &level.initial_player_stepsize[0],
2783     NULL, "initial player speed:", NULL,        "initial player speed"
2784   },
2785   {
2786     ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
2787     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2788     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2789     -1,
2790     options_group_choice_mode,
2791     &level.mm_ball_choice_mode,
2792     NULL, "choice type:", NULL,         "type of content choice"
2793   },
2794
2795   // ---------- element settings: configure 1 (custom elements) ---------------
2796
2797   {
2798     ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
2799     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2800     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2801     -1,
2802     options_access_type,
2803     &custom_element.access_type,
2804     NULL, NULL, NULL,                   "type of access to this field"
2805   },
2806   {
2807     ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
2808     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2809     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2810     -1,
2811     options_access_layer,
2812     &custom_element.access_layer,
2813     NULL, NULL, NULL,                   "layer of access for this field"
2814   },
2815   {
2816     ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
2817     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2818     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2819     -1,
2820     options_access_protected,
2821     &custom_element.access_protected,
2822     NULL, NULL, NULL,                   "protected access for this field"
2823   },
2824   {
2825     ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
2826     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2827     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2828     -1,
2829     options_access_direction,
2830     &custom_element.access_direction,
2831     NULL, "from", NULL,                 "access direction for this field"
2832   },
2833   {
2834     ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
2835     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2836     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2837     -1,
2838     options_walk_to_action,
2839     &custom_element.walk_to_action,
2840     NULL, NULL, NULL,                   "diggable/collectible/pushable"
2841   },
2842
2843   // ---------- element settings: configure 2 (custom elements) ---------------
2844
2845   {
2846     ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
2847     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2848     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2849     -1,
2850     options_move_pattern,
2851     &custom_element.move_pattern,
2852     NULL, "can move", NULL,             "element move pattern"
2853   },
2854   {
2855     ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
2856     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2857     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2858     -1,
2859     options_move_direction,
2860     &custom_element.move_direction_initial,
2861     NULL, "starts moving", NULL,        "initial element move direction"
2862   },
2863   {
2864     ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
2865     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2866     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2867     -1,
2868     options_move_stepsize,
2869     &custom_element.move_stepsize,
2870     NULL, "move/fall speed", NULL,      "speed of element movement"
2871   },
2872   {
2873     ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
2874     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2875     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2876     -1,
2877     options_move_leave_type,
2878     &custom_element.move_leave_type,
2879     // left text with leading spaces to place gadget next to "can dig" gadget
2880     // (needed because drawing area gadgets created after selectbox gadgets)
2881     // NULL, "can dig:    can", ":",    "leave behind or change element"
2882     NULL, "            can", ":",       "leave behind or change element"
2883   },
2884   {
2885     ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
2886     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2887     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2888     -1,
2889     options_smash_targets,
2890     &custom_element.smash_targets,
2891     NULL, "can smash", NULL,            "elements that can be smashed"
2892   },
2893   {
2894     ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
2895     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2896     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2897     -1,
2898     options_slippery_type,
2899     &custom_element.slippery_type,
2900     NULL, "slippery", NULL,             "where other elements fall down"
2901   },
2902   {
2903     ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
2904     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2905     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2906     -1,
2907     options_deadliness,
2908     &custom_element.deadliness,
2909     NULL, "deadly when", NULL,          "deadliness of element"
2910   },
2911   {
2912     ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
2913     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2914     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2915     -1,
2916     options_explosion_type,
2917     &custom_element.explosion_type,
2918     NULL, "can explode", NULL,          "explosion type"
2919   },
2920
2921   // ---------- element settings: advanced (custom elements) ------------------
2922
2923   {
2924     ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
2925     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2926     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2927     -1,
2928     options_time_units,
2929     &custom_element_change.delay_frames,
2930     NULL, "delay time given in", NULL,  "delay time units for change"
2931   },
2932   {
2933     ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
2934     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2935     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2936     -1,
2937     options_change_direct_action,
2938     &custom_element_change.direct_action,
2939     NULL, NULL, NULL,                   "type of direct action"
2940   },
2941   {
2942     ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
2943     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2944     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2945     -1,
2946     options_change_other_action,
2947     &custom_element_change.other_action,
2948     NULL, NULL, "element:",             "type of other element action"
2949   },
2950   {
2951     ED_SELECTBOX_ID_CHANGE_SIDE,
2952     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2953     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2954     -1,
2955     options_change_trigger_side,
2956     &custom_element_change.trigger_side,
2957     NULL, "at", "side",                 "element side triggering change"
2958   },
2959   {
2960     ED_SELECTBOX_ID_CHANGE_PLAYER,
2961     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2962     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2963     -1,
2964     options_change_trigger_player,
2965     &custom_element_change.trigger_player,
2966     NULL, "player:", " ",               "player that causes change"
2967   },
2968   {
2969     ED_SELECTBOX_ID_CHANGE_PAGE,
2970     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2971     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2972     -1,
2973     options_change_trigger_page,
2974     &custom_element_change.trigger_page,
2975     NULL, "page:", NULL,                "change page that causes change"
2976   },
2977   {
2978     ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
2979     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2980     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2981     -1,
2982     options_change_replace_when,
2983     &custom_element_change.replace_when,
2984     NULL, "replace when", NULL,         "which elements can be replaced"
2985   },
2986   {
2987     ED_SELECTBOX_ID_ACTION_TYPE,
2988     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
2989     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
2990     15,
2991     options_action_type,
2992     &custom_element_change.action_type,
2993     NULL, NULL, NULL,                   "action on specified condition"
2994   },
2995   {
2996     ED_SELECTBOX_ID_ACTION_MODE,
2997     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2998     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
2999     -1,
3000     options_action_mode_none,
3001     &custom_element_change.action_mode,
3002     NULL, NULL, NULL,                   "action operator"
3003   },
3004   {
3005     ED_SELECTBOX_ID_ACTION_ARG,
3006     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3007     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
3008     -1,
3009     options_action_arg_none,
3010     &custom_element_change.action_arg,
3011     NULL, NULL, NULL,                   "action parameter"
3012   },
3013   {
3014     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
3015     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
3016     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
3017     3,
3018     options_change_page,
3019     &custom_element.current_change_page,
3020     NULL, NULL, NULL,                   "element change page"
3021   },
3022
3023   // ---------- element settings: configure (group elements) ------------------
3024
3025   {
3026     ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
3027     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3028     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
3029     -1,
3030     options_group_choice_mode,
3031     &group_element_info.choice_mode,
3032     NULL, "choice type:", NULL,         "type of group element choice"
3033   },
3034 };
3035
3036 static struct
3037 {
3038   int gadget_type_id;
3039   int x, y;
3040   int gadget_id;
3041   int gadget_id_align;
3042   int size;
3043   char *text;
3044   char *text_above, *text_left, *text_right, *infotext;
3045 } textbutton_info[ED_NUM_TEXTBUTTONS] =
3046 {
3047   // ---------- level and editor settings (tabs) ------------------------------
3048
3049   {
3050     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
3051     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
3052     GADGET_ID_LEVELCONFIG_LEVEL,        GADGET_ID_NONE,
3053     8,                                  "Level",
3054     NULL, NULL, NULL,                   "Configure level settings"
3055   },
3056   {
3057     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
3058     -1,                                 -1,
3059     GADGET_ID_LEVELCONFIG_LEVELSET,     GADGET_ID_LEVELCONFIG_LEVEL,
3060     8,                                  "Levelset",
3061     NULL, NULL, NULL,                   "Update this or create new level set"
3062   },
3063   {
3064     ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
3065     -1,                                 -1,
3066     GADGET_ID_LEVELCONFIG_EDITOR,       GADGET_ID_LEVELCONFIG_LEVELSET,
3067     8,                                  "Editor",
3068     NULL, NULL, NULL,                   "Configure editor settings"
3069   },
3070   {
3071     ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
3072     -1,                                 -1,
3073     GADGET_ID_LEVELCONFIG_ENGINE,       GADGET_ID_LEVELCONFIG_EDITOR,
3074     8,                                  "Engine",
3075     NULL, NULL, NULL,                   "Configure engine settings"
3076   },
3077
3078   // ---------- element settings (tabs) ---------------------------------------
3079
3080   {
3081     ED_TEXTBUTTON_ID_PROPERTIES_INFO,
3082     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
3083     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
3084     8,                                  "Info",
3085     NULL, NULL, NULL,                   "Show information about element"
3086   },
3087   {
3088     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
3089     -1,                                 -1,
3090     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
3091     8,                                  "Config",
3092     NULL, NULL, NULL,                   "Configure element properties"
3093   },
3094   {
3095     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
3096     -1,                                 -1,
3097     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
3098     8,                                  "Config 1",
3099     NULL, NULL, NULL,                   "Configure element properties, part 1"
3100   },
3101   {
3102     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
3103     -1,                                 -1,
3104     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
3105     8,                                  "Config 2",
3106     NULL, NULL, NULL,                   "Configure element properties, part 2"
3107   },
3108   {
3109     ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
3110     -1,                                 -1,
3111     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
3112     8,                                  "Change",
3113     NULL, NULL, NULL,                   "Configure custom element change pages"
3114   },
3115
3116   // ---------- level and editor settings (buttons) ---------------------------
3117
3118   {
3119     ED_TEXTBUTTON_ID_SAVE_LEVELSET,
3120     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
3121     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
3122     -1,                                 "Save",
3123     NULL, NULL, NULL,                   "Update or create level set"
3124   },
3125   {
3126     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
3127     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3128     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
3129     -1,                                 "Save",
3130     NULL, NULL,                         "this level as level template",
3131     "Save current settings as new template"
3132   },
3133
3134   // ---------- element settings (buttons) ------------------------------------
3135
3136   {
3137     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
3138     -1,                                 -1,
3139     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
3140     -1,                                 "Save",
3141     NULL, " ",                          "As Template",
3142     "Save current settings as new template"
3143   },
3144   {
3145     ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
3146     -1,                                 -1,
3147     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
3148     -1,                                 "New",
3149     NULL, NULL, NULL,                   "Add new change page"
3150   },
3151   {
3152     ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
3153     -1,                                 -1,
3154     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
3155     -1,                                 "Delete",
3156     NULL, NULL, NULL,                   "Delete current change page"
3157   },
3158 };
3159
3160 static struct
3161 {
3162   int gadget_type_id;
3163   int graphic;
3164   int x, y;
3165   int gadget_id;
3166   int gadget_id_align;
3167   char *text_left, *text_right, *infotext;
3168 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
3169 {
3170   {
3171     ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
3172     IMG_EDITOR_COUNTER_DOWN,
3173     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3174     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
3175     NULL, NULL,                         "select previous change page"
3176   },
3177   {
3178     ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
3179     IMG_EDITOR_COUNTER_UP,
3180     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3181     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
3182     NULL, "change page",                "select next change page"
3183   },
3184   {
3185     ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
3186     IMG_GFX_EDITOR_BUTTON_CP_COPY,
3187     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3188     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
3189     " ", NULL,                          "copy settings from this change page"
3190   },
3191   {
3192     ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
3193     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
3194     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3195     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
3196     NULL, NULL,                         "paste settings to this change page"
3197   },
3198 };
3199
3200 static struct
3201 {
3202   int x, y;
3203 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
3204
3205 static struct
3206 {
3207   int gadget_type_id;
3208   int graphic;
3209   int gadget_id;
3210   char *infotext;
3211 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
3212 {
3213   {
3214     ED_SCROLLBUTTON_ID_AREA_UP,
3215     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
3216     GADGET_ID_SCROLL_UP,
3217     "scroll level editing area up"
3218   },
3219   {
3220     ED_SCROLLBUTTON_ID_AREA_DOWN,
3221     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
3222     GADGET_ID_SCROLL_DOWN,
3223     "scroll level editing area down"
3224   },
3225   {
3226     ED_SCROLLBUTTON_ID_AREA_LEFT,
3227     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
3228     GADGET_ID_SCROLL_LEFT,
3229     "scroll level editing area left"
3230   },
3231   {
3232     ED_SCROLLBUTTON_ID_AREA_RIGHT,
3233     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
3234     GADGET_ID_SCROLL_RIGHT,
3235     "scroll level editing area right"
3236   },
3237   {
3238     ED_SCROLLBUTTON_ID_LIST_UP,
3239     IMG_EDITOR_PALETTE_SCROLL_UP,
3240     GADGET_ID_SCROLL_LIST_UP,
3241     "scroll element list up ('Page Up')"
3242   },
3243   {
3244     ED_SCROLLBUTTON_ID_LIST_DOWN,
3245     IMG_EDITOR_PALETTE_SCROLL_DOWN,
3246     GADGET_ID_SCROLL_LIST_DOWN,
3247     "scroll element list down ('Page Down')"
3248   },
3249 };
3250
3251 static struct
3252 {
3253   int x, y;
3254   int width, height;
3255   int wheel_x, wheel_y;
3256   int wheel_width, wheel_height;
3257 } scrollbar_pos[ED_NUM_SCROLLBARS];
3258
3259 static struct
3260 {
3261   int gadget_type_id;
3262   int graphic;
3263   int type;
3264   int gadget_id;
3265   char *infotext;
3266 } scrollbar_info[ED_NUM_SCROLLBARS] =
3267 {
3268   {
3269     ED_SCROLLBAR_ID_AREA_HORIZONTAL,
3270     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3271     GD_TYPE_SCROLLBAR_HORIZONTAL,
3272     GADGET_ID_SCROLL_HORIZONTAL,
3273     "scroll level editing area horizontally"
3274   },
3275   {
3276     ED_SCROLLBAR_ID_AREA_VERTICAL,
3277     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3278     GD_TYPE_SCROLLBAR_VERTICAL,
3279     GADGET_ID_SCROLL_VERTICAL,
3280     "scroll level editing area vertically"
3281   },
3282   {
3283     ED_SCROLLBAR_ID_LIST_VERTICAL,
3284     IMG_EDITOR_PALETTE_SCROLLBAR,
3285     GD_TYPE_SCROLLBAR_VERTICAL,
3286     GADGET_ID_SCROLL_LIST_VERTICAL,
3287     "scroll element list vertically"
3288   }
3289 };
3290
3291
3292 static struct
3293 {
3294   int gadget_type_id;
3295   int x, y;
3296   int gadget_id;
3297   int gadget_id_align;
3298   int radio_button_nr;
3299   int *value;
3300   int checked_value;
3301   char *text_left, *text_right, *infotext;
3302 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3303 {
3304   {
3305     ED_RADIOBUTTON_ID_PERCENTAGE,
3306     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3307     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3308     RADIO_NR_RANDOM_ELEMENTS,
3309     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3310     " ", "percentage",                  "use percentage for random elements"
3311   },
3312   {
3313     ED_RADIOBUTTON_ID_QUANTITY,
3314     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3315     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3316     RADIO_NR_RANDOM_ELEMENTS,
3317     &random_placement_method,           RANDOM_USE_QUANTITY,
3318     " ", "quantity",                    "use quantity for random elements"
3319   }
3320 };
3321
3322 static struct
3323 {
3324   int gadget_type_id;
3325   int x, y;
3326   int gadget_id;
3327   int gadget_id_align;
3328   boolean *value;
3329   char *text_above, *text_left, *text_right, *infotext;
3330 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3331 {
3332   // ---------- level and editor settings -------------------------------------
3333
3334   {
3335     ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
3336     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3337     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3338     &level.auto_count_gems,
3339     NULL, NULL,
3340     "automatically count gems needed",  "set counter to number of gems"
3341   },
3342   {
3343     ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
3344     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3345     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3346     &level.rate_time_over_score,
3347     NULL, NULL,
3348     "rate time/steps used over score",  "sort high scores by playing time/steps"
3349   },
3350   {
3351     ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
3352     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3353     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3354     &levelset_use_levelset_artwork,
3355     NULL, NULL,
3356     "use current custom artwork",       "use custom artwork of this level set"
3357   },
3358   {
3359     ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
3360     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3361     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3362     &levelset_copy_level_template,
3363     NULL, NULL,
3364     "copy current level template",      "copy level template of this level set"
3365   },
3366   {
3367     ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
3368     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3369     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3370     &random_placement_background_restricted,
3371     NULL, NULL,
3372     "restrict random placement to:",    "set random placement restriction"
3373   },
3374   {
3375     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
3376     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3377     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3378     &setup.editor.use_template_for_new_levels,
3379     "Template for new levels and CE/GE:", NULL,
3380     "use template for new levels",      "use template for level properties"
3381   },
3382   {
3383     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
3384     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3385     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3386     &level.use_custom_template,
3387     NULL, NULL,
3388     "use template for custom elements", "use template for custom properties"
3389   },
3390   {
3391     ED_CHECKBUTTON_ID_BD_INTERMISSION,
3392     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
3393     GADGET_ID_BD_INTERMISSION,          GADGET_ID_NONE,
3394     &level.bd_intermission,
3395     "Boulder Dash game engine settings:", NULL,
3396     "intermission",                     "level is an intermission level"
3397   },
3398   {
3399     ED_CHECKBUTTON_ID_BD_PAL_TIMING,
3400     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
3401     GADGET_ID_BD_PAL_TIMING,            GADGET_ID_NONE,
3402     &level.bd_pal_timing,
3403     NULL, NULL,
3404     "PAL timing",                       "use slower timer (like PAL C64)"
3405   },
3406   {
3407     ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
3408     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3409     GADGET_ID_BD_LINE_SHIFTING_BORDERS, GADGET_ID_NONE,
3410     &level.bd_line_shifting_borders,
3411     "Compatibility settings:", NULL,
3412     "line-shifting borders",            "use line-shifting wrap-around"
3413   },
3414   {
3415     ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
3416     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3417     GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW, GADGET_ID_NONE,
3418     &level.bd_scan_first_and_last_row,
3419     NULL, NULL,
3420     "scan first and last row",          "also process top/bottom border rows"
3421   },
3422   {
3423     ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
3424     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3425     GADGET_ID_BD_SHORT_EXPLOSIONS,      GADGET_ID_NONE,
3426     &level.bd_short_explosions,
3427     NULL, NULL,
3428     "short explosions",                 "use four game cycles for explosions"
3429   },
3430   {
3431     ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
3432     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(9),
3433     GADGET_ID_BD_GRAVITY_AFFECTS_ALL,   GADGET_ID_NONE,
3434     &level.bd_gravity_affects_all,
3435     NULL, NULL,
3436     "gravity change affects everything", "gravity affects all falling objects"
3437   },
3438
3439   // ---------- element settings: configure (various elements) ----------------
3440
3441   {
3442     ED_CHECKBUTTON_ID_STICK_ELEMENT,
3443     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3444     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3445     &stick_element_properties_window,
3446     NULL, NULL,
3447     "stick this screen to edit content","stick this screen to edit content"
3448   },
3449   {
3450     ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
3451     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3452     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3453     &level.em_slippery_gems,
3454     NULL, NULL,
3455     "slip down from certain flat walls","use EM/DC style slipping behaviour"
3456   },
3457   {
3458     ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
3459     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3460     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3461     &level.em_explodes_by_fire,
3462     NULL, NULL,
3463     "explodes with chain reaction",     "use R'n'D style explosion behaviour"
3464   },
3465   {
3466     ED_CHECKBUTTON_ID_USE_SPRING_BUG,
3467     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3468     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3469     &level.use_spring_bug,
3470     NULL, NULL,
3471     "use spring pushing bug",           "use odd spring pushing behaviour"
3472   },
3473   {
3474     ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
3475     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3476     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3477     &level.use_time_orb_bug,
3478     NULL, NULL,
3479     "use time orb bug",                 "use odd time orb behaviour"
3480   },
3481   {
3482     ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
3483     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3484     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3485     &level.use_life_bugs,
3486     NULL, NULL,
3487     "use buggy element behaviour",      "use odd (historic) element behaviour"
3488   },
3489   {
3490     ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
3491     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3492     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3493     &level.ball_random,
3494     NULL, NULL,
3495     "create single random element",     "only create one element from content"
3496   },
3497   {
3498     ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
3499     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3500     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3501     &level.ball_active_initial,
3502     NULL, NULL,
3503     "magic ball initially activated",   "activate magic ball after level start"
3504   },
3505   {
3506     ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
3507     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3508     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3509     &level.grow_into_diggable,
3510     NULL, NULL,
3511     "can grow into anything diggable",  "grow into more than just sand"
3512   },
3513   {
3514     ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
3515     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3516     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3517     &level.sb_fields_needed,
3518     NULL, NULL,
3519     "all fields need to be filled",     "require all SB fields to be solved"
3520   },
3521   {
3522     ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
3523     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3524     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3525     &level.sb_objects_needed,
3526     NULL, NULL,
3527     "all objects need to be placed",    "require all SB objects to be solved"
3528   },
3529   {
3530     ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
3531     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3532     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3533     &level.auto_exit_sokoban,
3534     NULL, NULL,
3535     "exit level if all tasks solved",   "automatically finish Sokoban levels"
3536   },
3537   {
3538     ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
3539     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3540     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3541     &level.solved_by_one_player,
3542     NULL, NULL,
3543     "only one player must enter exit",  "level solved by first player in exit"
3544   },
3545   {
3546     ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
3547     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3548     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3549     &level.finish_dig_collect,
3550     NULL, NULL,
3551     "CE action on finished dig/collect", "only finished dig/collect triggers CE"
3552   },
3553   {
3554     ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
3555     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3556     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3557     &level.keep_walkable_ce,
3558     NULL, NULL,
3559     "keep walkable CE changed to player", "keep CE changing to player if walkable"
3560   },
3561   {
3562     ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
3563     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3564     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3565     &level.continuous_snapping,
3566     NULL, NULL,
3567     "continuous snapping",              "use snapping without releasing key"
3568   },
3569   {
3570     ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
3571     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3572     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3573     &level.block_snap_field,
3574     NULL, NULL,
3575     "block snapped field when snapping", "use snapping delay to show animation"
3576   },
3577   {
3578     ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
3579     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3580     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3581     &level.block_last_field,
3582     NULL, NULL,
3583     "block last field when moving",     "player blocks last field when moving"
3584   },
3585   {
3586     ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
3587     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3588     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3589     &level.sp_block_last_field,
3590     NULL, NULL,
3591     "block last field when moving",     "player blocks last field when moving"
3592   },
3593   {
3594     ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
3595     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3596     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3597     &level.instant_relocation,
3598     NULL, NULL,
3599     "no scrolling when relocating",     "player gets relocated without delay"
3600   },
3601   {
3602     ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
3603     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3604     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3605     &level.shifted_relocation,
3606     NULL, NULL,
3607     "no centering when relocating",     "level not centered after relocation"
3608   },
3609   {
3610     ED_CHECKBUTTON_ID_LAZY_RELOCATION,
3611     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3612     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3613     &level.lazy_relocation,
3614     NULL, NULL,
3615     "only redraw off-screen relocation","no redraw if relocation target visible"
3616   },
3617   {
3618     ED_CHECKBUTTON_ID_USE_START_ELEMENT,
3619     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3620     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3621     &level.use_start_element[0],
3622     NULL, NULL,
3623     "use level start element:",        "start level at this element's position"
3624   },
3625   {
3626     ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
3627     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3628     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3629     &level.use_artwork_element[0],
3630     NULL, NULL,
3631     "use artwork from element:",        "use player artwork from other element"
3632   },
3633   {
3634     ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
3635     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3636     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3637     &level.use_explosion_element[0],
3638     NULL, NULL,
3639     "use explosion from element:",      "use explosion properties from element"
3640   },
3641   {
3642     ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
3643     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3644     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3645     &level.initial_player_gravity[0],
3646     NULL, NULL,
3647     "use initial gravity",              "set initial player gravity"
3648   },
3649   {
3650     ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
3651     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3652     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3653     &level.use_initial_inventory[0],
3654     NULL, NULL,
3655     "use initial inventory:",           "use collected elements on level start"
3656   },
3657   {
3658     ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
3659     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3660     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3661     &level.can_pass_to_walkable,
3662     NULL, NULL,
3663     "can pass to walkable element",     "player can pass to empty or walkable"
3664   },
3665   {
3666     ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
3667     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3668     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3669     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3670     NULL, NULL,
3671     "can fall into acid (with gravity)","player can fall into acid pool"
3672   },
3673   {
3674     ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
3675     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3676     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3677     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3678     NULL, NULL,
3679     "can move into acid",               "element can move into acid pool"
3680   },
3681   {
3682     ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
3683     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3684     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3685     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3686     NULL, NULL,
3687     "deadly when colliding with",       "element is deadly when hitting player"
3688   },
3689   {
3690     ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
3691     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3692     GADGET_ID_BD_DIAGONAL_MOVEMENTS,    GADGET_ID_NONE,
3693     &level.bd_diagonal_movements,
3694     NULL, NULL,
3695     "can move diagonally",              "player can move diagonally"
3696   },
3697   {
3698     ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
3699     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3700     GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE, GADGET_ID_NONE,
3701     &level.bd_topmost_player_active,
3702     NULL, NULL,
3703     "topmost player is active",         "use first player found on playfield"
3704   },
3705   {
3706     ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
3707     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3708     GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET, GADGET_ID_NONE,
3709     &level.bd_push_mega_rock_with_sweet,
3710     NULL, NULL,
3711     "mega rocks pushable with sweet",   "push mega rocks after eating sweet"
3712   },
3713   {
3714     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
3715     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3716     GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING, GADGET_ID_NONE,
3717     &level.bd_magic_wall_wait_hatching,
3718     NULL, NULL,
3719     "wait for player's birth",          "timer start waits for player's birth"
3720   },
3721   {
3722     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
3723     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3724     GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA, GADGET_ID_NONE,
3725     &level.bd_magic_wall_stops_amoeba,
3726     NULL, NULL,
3727     "turn amoeba to diamonds",          "activation changes amoeba to diamonds"
3728   },
3729   {
3730     ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
3731     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3732     GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING, GADGET_ID_NONE,
3733     &level.bd_amoeba_wait_for_hatching,
3734     NULL, NULL,
3735     "wait for player's birth",          "timer start waits for player's birth"
3736   },
3737   {
3738     ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
3739     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3740     GADGET_ID_BD_AMOEBA_START_IMMEDIATELY, GADGET_ID_NONE,
3741     &level.bd_amoeba_start_immediately,
3742     NULL, NULL,
3743     "start growing immediately",        "start slow growth time immediately"
3744   },
3745   {
3746     ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
3747     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3748     GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA, GADGET_ID_NONE,
3749     &level.bd_amoeba_2_explode_by_amoeba,
3750     NULL, NULL,
3751     "explodes if touched by amoeba",    "amoeba 2 explodes if touched by amoeba"
3752   },
3753   {
3754     ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
3755     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3756     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3757     &level.envelope[0].autowrap,
3758     NULL, NULL,
3759     "auto-wrap",                        "automatically wrap envelope text"
3760   },
3761   {
3762     ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
3763     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3764     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3765     &level.envelope[0].centered,
3766     NULL, " ",
3767     "centered",                         "automatically center envelope text"
3768   },
3769   {
3770     ED_CHECKBUTTON_ID_MM_LASER_RED,
3771     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3772     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3773     &level.mm_laser_red,
3774     "choose color components for laser:", NULL,
3775     "red",                              "use red color components in laser"
3776   },
3777   {
3778     ED_CHECKBUTTON_ID_MM_LASER_GREEN,
3779     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3780     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3781     &level.mm_laser_green,
3782     NULL, NULL,
3783     "green",                            "use green color components in laser"
3784   },
3785   {
3786     ED_CHECKBUTTON_ID_MM_LASER_BLUE,
3787     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3788     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3789     &level.mm_laser_blue,
3790     NULL, NULL,
3791     "blue",                             "use blue color components in laser"
3792   },
3793   {
3794     ED_CHECKBUTTON_ID_DF_LASER_RED,
3795     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3796     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3797     &level.df_laser_red,
3798     "choose color components for laser:", NULL,
3799     "red",                              "use red color components in laser"
3800   },
3801   {
3802     ED_CHECKBUTTON_ID_DF_LASER_GREEN,
3803     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3804     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3805     &level.df_laser_green,
3806     NULL, NULL,
3807     "green",                            "use green color components in laser"
3808   },
3809   {
3810     ED_CHECKBUTTON_ID_DF_LASER_BLUE,
3811     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3812     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3813     &level.df_laser_blue,
3814     NULL, NULL,
3815     "blue",                             "use blue color components in laser"
3816   },
3817   {
3818     ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
3819     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3820     GADGET_ID_ROTATE_MM_BALL_CONTENT,   GADGET_ID_NONE,
3821     &level.rotate_mm_ball_content,
3822     NULL, NULL,
3823     "randomly rotate created content",  "randomly rotate newly created content"
3824   },
3825   {
3826     ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
3827     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3828     GADGET_ID_EXPLODE_MM_BALL,          GADGET_ID_NONE,
3829     &level.explode_mm_ball,
3830     NULL, NULL,
3831     "explode ball instead of melting",  "use explosion to release ball content"
3832   },
3833
3834   // ---------- element settings: configure 1 (custom elements) ---------------
3835
3836   {
3837     ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
3838     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3839     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3840     &custom_element.use_gfx_element,
3841     NULL, NULL,
3842     "use graphic of element:",          "use existing element graphic"
3843   },
3844   {
3845     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
3846     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3847     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3848     &level.use_custom_template,
3849     NULL, NULL,
3850     "use template",                     "use template for custom properties"
3851   },
3852   {
3853     ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
3854     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3855     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3856     &custom_element_properties[EP_ACCESSIBLE],
3857     NULL, NULL,
3858     NULL,                               "player can walk to or pass this field"
3859   },
3860   {
3861     ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
3862     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3863     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3864     &custom_element_properties[EP_GRAVITY_REACHABLE],
3865     NULL, NULL,
3866     "reachable despite gravity",        "player can walk/dig despite gravity"
3867   },
3868   {
3869     ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
3870     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3871     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3872     &custom_element.use_last_ce_value,
3873     NULL, NULL,
3874     "use last CE value after change",   "use last CE value after change"
3875   },
3876   {
3877     ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
3878     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3879     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3880     &custom_element_properties[EP_WALK_TO_OBJECT],
3881     NULL, NULL,
3882     NULL,                               "player can dig/collect/push element"
3883   },
3884   {
3885     ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
3886     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3887     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3888     &custom_element_properties[EP_INDESTRUCTIBLE],
3889     NULL, NULL,
3890     "indestructible",                   "element is indestructible"
3891   },
3892
3893   // ---------- element settings: configure 2 (custom elements) ---------------
3894
3895   {
3896     ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
3897     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3898     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
3899     &custom_element_properties[EP_CAN_MOVE],
3900     NULL, NULL,
3901     NULL,                               "element can move with some pattern"
3902   },
3903   {
3904     ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
3905     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3906     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
3907     &custom_element_properties[EP_CAN_FALL],
3908     NULL, NULL,
3909     "can fall",                         "element can fall down"
3910   },
3911   {
3912     ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
3913     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
3914     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
3915     &custom_element_properties[EP_CAN_SMASH],
3916     NULL, " ",
3917     NULL,                               "element can smash other elements"
3918   },
3919   {
3920     ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
3921     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3922     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
3923     &custom_element_properties[EP_SLIPPERY],
3924     NULL, NULL,
3925     NULL,                               "other elements can fall down from it"
3926   },
3927   {
3928     ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
3929     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3930     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
3931     &custom_element_properties[EP_DEADLY],
3932     NULL, NULL,
3933     NULL,                               "element can kill the player"
3934   },
3935   {
3936     ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
3937     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3938     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
3939     &custom_element_properties[EP_CAN_EXPLODE],
3940     NULL, NULL,
3941     NULL,                               "element can explode"
3942   },
3943   {
3944     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
3945     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
3946     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
3947     &custom_element_properties[EP_EXPLODES_BY_FIRE],
3948     NULL, NULL,
3949     "by fire",                          "element can explode by fire/explosion"
3950   },
3951   {
3952     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
3953     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3954     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
3955     &custom_element_properties[EP_EXPLODES_SMASHED],
3956     NULL, " ",
3957     "smashed",                          "element can explode when smashed"
3958   },
3959   {
3960     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
3961     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3962     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
3963     &custom_element_properties[EP_EXPLODES_IMPACT],
3964     NULL, " ",
3965     "impact",                           "element can explode on impact"
3966   },
3967
3968   // ---------- element settings: advanced (custom elements) ------------------
3969
3970   {
3971     ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
3972     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3973     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
3974     &custom_element_change.can_change,
3975     NULL, NULL,
3976     "element changes to:",              "change element on specified condition"
3977   },
3978   {
3979     ED_CHECKBUTTON_ID_CHANGE_DELAY,
3980     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
3981     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
3982     &custom_element_change_events[CE_DELAY],
3983     NULL, NULL,
3984     NULL,                               "element changes after delay"
3985   },
3986   {
3987     ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
3988     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
3989     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
3990     &custom_element_change_events[CE_BY_DIRECT_ACTION],
3991     NULL, NULL,
3992     NULL,                               "element changes by direct action"
3993   },
3994   {
3995     ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
3996     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
3997     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
3998     &custom_element_change_events[CE_BY_OTHER_ACTION],
3999     NULL, NULL,
4000     NULL,                               "element changes by other element"
4001   },
4002   {
4003     ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
4004     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
4005     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
4006     &custom_element_change.explode,
4007     NULL, NULL,
4008     "explode instead of change",        "element explodes instead of change"
4009   },
4010   {
4011     ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
4012     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
4013     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
4014     &custom_element_change.use_target_content,
4015     NULL, NULL,
4016     "use extended change target:",      "element changes to more elements"
4017   },
4018   {
4019     ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
4020     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
4021     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
4022     &custom_element_change.only_if_complete,
4023     NULL, NULL,
4024     "replace all or nothing",           "only replace when all can be changed"
4025   },
4026   {
4027     ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
4028     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
4029     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
4030     &custom_element_change.use_random_replace,
4031     NULL, NULL,
4032     NULL,                               "use percentage for random replace"
4033   },
4034   {
4035     ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
4036     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
4037     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
4038     &custom_element_change.has_action,
4039     NULL, NULL,
4040     NULL,                               "execute action on specified condition"
4041   },
4042 };
4043
4044 static struct
4045 {
4046   int gadget_type_id;
4047   int x, y;
4048   int xoffset, yoffset;
4049   int gadget_id;
4050   int gadget_id_align;
4051   int *value;
4052   int area_xsize, area_ysize;
4053   char *text_left, *text_right, *text_above, *text_below, *infotext;
4054 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
4055 {
4056   // ---------- level playfield content ---------------------------------------
4057
4058   {
4059     ED_DRAWING_ID_DRAWING_LEVEL,
4060     0,                                  0,
4061     0,                                  0,
4062     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
4063     NULL,
4064     -1, -1,     // these values are not constant, but can change at runtime
4065     NULL, NULL, NULL, NULL,             NULL
4066   },
4067
4068   // ---------- yam yam content -----------------------------------------------
4069
4070   {
4071     ED_DRAWING_ID_YAMYAM_CONTENT_0,
4072     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4073     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
4074     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
4075     &level.yamyam_content[0].e[0][0],   3, 3,
4076     NULL, NULL, NULL, "1",              NULL
4077   },
4078   {
4079     ED_DRAWING_ID_YAMYAM_CONTENT_1,
4080     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4081     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
4082     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
4083     &level.yamyam_content[1].e[0][0],   3, 3,
4084     NULL, NULL, NULL, "2",              NULL
4085   },
4086   {
4087     ED_DRAWING_ID_YAMYAM_CONTENT_2,
4088     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4089     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
4090     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
4091     &level.yamyam_content[2].e[0][0],   3, 3,
4092     NULL, NULL, NULL, "3",              NULL
4093   },
4094   {
4095     ED_DRAWING_ID_YAMYAM_CONTENT_3,
4096     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4097     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
4098     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
4099     &level.yamyam_content[3].e[0][0],   3, 3,
4100     NULL, NULL, NULL, "4",              NULL
4101   },
4102   {
4103     ED_DRAWING_ID_YAMYAM_CONTENT_4,
4104     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4105     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
4106     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
4107     &level.yamyam_content[4].e[0][0],   3, 3,
4108     NULL, NULL, NULL, "5",              NULL
4109   },
4110   {
4111     ED_DRAWING_ID_YAMYAM_CONTENT_5,
4112     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4113     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
4114     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
4115     &level.yamyam_content[5].e[0][0],   3, 3,
4116     NULL, NULL, NULL, "6",              NULL
4117   },
4118   {
4119     ED_DRAWING_ID_YAMYAM_CONTENT_6,
4120     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4121     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
4122     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
4123     &level.yamyam_content[6].e[0][0],   3, 3,
4124     NULL, NULL, NULL, "7",              NULL
4125   },
4126   {
4127     ED_DRAWING_ID_YAMYAM_CONTENT_7,
4128     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4129     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
4130     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
4131     &level.yamyam_content[7].e[0][0],   3, 3,
4132     NULL, NULL, NULL, "8",              NULL
4133   },
4134
4135   // ---------- magic ball content --------------------------------------------
4136
4137   {
4138     ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
4139     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4140     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
4141     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
4142     &level.ball_content[0].e[0][0],     3, 3,
4143     NULL, NULL, NULL, "1",              NULL
4144   },
4145   {
4146     ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
4147     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4148     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
4149     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
4150     &level.ball_content[1].e[0][0],     3, 3,
4151     NULL, NULL, NULL, "2",              NULL
4152   },
4153   {
4154     ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
4155     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4156     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
4157     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
4158     &level.ball_content[2].e[0][0],     3, 3,
4159     NULL, NULL, NULL, "3",              NULL
4160   },
4161   {
4162     ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
4163     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4164     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
4165     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
4166     &level.ball_content[3].e[0][0],     3, 3,
4167     NULL, NULL, NULL, "4",              NULL
4168   },
4169   {
4170     ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
4171     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4172     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
4173     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
4174     &level.ball_content[4].e[0][0],     3, 3,
4175     NULL, NULL, NULL, "5",              NULL
4176   },
4177   {
4178     ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
4179     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4180     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
4181     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
4182     &level.ball_content[5].e[0][0],     3, 3,
4183     NULL, NULL, NULL, "6",              NULL
4184   },
4185   {
4186     ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
4187     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4188     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
4189     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
4190     &level.ball_content[6].e[0][0],     3, 3,
4191     NULL, NULL, NULL, "7",              NULL
4192   },
4193   {
4194     ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
4195     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4196     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
4197     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
4198     &level.ball_content[7].e[0][0],     3, 3,
4199     NULL, NULL, NULL, "8",              NULL
4200   },
4201
4202   // ---------- android content -----------------------------------------------
4203
4204   {
4205     ED_DRAWING_ID_ANDROID_CONTENT,
4206     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
4207     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4208     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
4209     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
4210     NULL, NULL, "elements:", NULL,      "elements android can clone"
4211   },
4212
4213   // ---------- amoeba content ------------------------------------------------
4214
4215   {
4216     ED_DRAWING_ID_AMOEBA_CONTENT,
4217     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
4218     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4219     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
4220     &level.amoeba_content,              1, 1,
4221     "content:", NULL, NULL, NULL,       "amoeba content"
4222   },
4223
4224   // ---------- BD amoeba content ------------------------------------------------
4225
4226   {
4227     ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
4228     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4229     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4230     GADGET_ID_BD_AMOEBA_CONTENT_TOO_BIG, GADGET_ID_NONE,
4231     &level.bd_amoeba_content_too_big,   1, 1,
4232     "if too big, changes to:", NULL, NULL, NULL,        "BD amoeba content if too big"
4233   },
4234   {
4235     ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
4236     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4237     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4238     GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED, GADGET_ID_NONE,
4239     &level.bd_amoeba_content_enclosed,  1, 1,
4240     "if enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba content if enclosed"
4241   },
4242
4243   // ---------- BD amoeba 2 content ------------------------------------------------
4244
4245   {
4246     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
4247     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4248     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4249     GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG, GADGET_ID_NONE,
4250     &level.bd_amoeba_2_content_too_big, 1, 1,
4251     "if too big, changes to:", NULL, NULL, NULL,        "BD amoeba 2 content if too big"
4252   },
4253   {
4254     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
4255     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4256     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4257     GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED, GADGET_ID_NONE,
4258     &level.bd_amoeba_2_content_enclosed,        1, 1,
4259     "if enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba 2 content if enclosed"
4260   },
4261   {
4262     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
4263     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(10),
4264     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4265     GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING, GADGET_ID_NONE,
4266     &level.bd_amoeba_2_content_exploding,       1, 1,
4267     "if exploding, changes to:", NULL, NULL, NULL,      "BD amoeba 2 content if exploding"
4268   },
4269   {
4270     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
4271     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(11),
4272     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4273     GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,   GADGET_ID_NONE,
4274     &level.bd_amoeba_2_content_looks_like,      1, 1,
4275     "use graphic of element:", NULL, NULL, NULL,        "BD amoeba 2 looks like this element"
4276   },
4277
4278   // ---------- level start element -------------------------------------------
4279
4280   {
4281     ED_DRAWING_ID_START_ELEMENT,
4282     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
4283     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4284     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
4285     &level.start_element[0],            1, 1,
4286     NULL, NULL, NULL, NULL,             "level start element"
4287   },
4288
4289   // ---------- player artwork element ----------------------------------------
4290
4291   {
4292     ED_DRAWING_ID_ARTWORK_ELEMENT,
4293     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
4294     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4295     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
4296     &level.artwork_element[0],          1, 1,
4297     NULL, NULL, NULL, NULL,             "element for player artwork"
4298   },
4299
4300   // ---------- player explosion element --------------------------------------
4301
4302   {
4303     ED_DRAWING_ID_EXPLOSION_ELEMENT,
4304     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
4305     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4306     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
4307     &level.explosion_element[0],        1, 1,
4308     NULL, NULL, NULL, NULL,             "element for player explosion"
4309   },
4310
4311   // ---------- player initial inventory --------------------------------------
4312
4313   {
4314     ED_DRAWING_ID_INVENTORY_CONTENT,
4315     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4316     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4317     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
4318     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
4319     NULL, NULL, NULL, NULL,             "content for initial inventory"
4320   },
4321
4322   // ---------- gray ball content -----------------------------------------
4323
4324   {
4325     ED_DRAWING_ID_MM_BALL_CONTENT,
4326     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4327     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4328     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
4329     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
4330     "content:", NULL, NULL, NULL,       "content for gray ball"
4331   },
4332
4333   // ---------- element settings: configure 1 (custom elements) ---------------
4334
4335   // ---------- custom graphic ------------------------------------------------
4336
4337   {
4338     ED_DRAWING_ID_CUSTOM_GRAPHIC,
4339     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4340     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4341     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
4342     &custom_element.gfx_element_initial, 1, 1,
4343     NULL, NULL, NULL, NULL,             "custom graphic element"
4344   },
4345
4346   // ---------- element settings: configure 2 (custom elements) ---------------
4347
4348   // ---------- custom content (when exploding) -------------------------------
4349
4350   {
4351     ED_DRAWING_ID_CUSTOM_CONTENT,
4352     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
4353     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4354     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
4355     &custom_element.content.e[0][0],    3, 3,
4356     "content:", NULL, NULL, NULL,       NULL
4357   },
4358
4359   // ---------- custom enter and leave element (when moving) ------------------
4360
4361   {
4362     ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
4363     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
4364     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4365     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
4366     &custom_element.move_enter_element, 1, 1,
4367     "can dig:", " ", NULL, NULL,        "element that can be digged/collected"
4368   },
4369   {
4370     ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
4371     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
4372     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4373     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
4374     &custom_element.move_leave_element, 1, 1,
4375     NULL, NULL, NULL, NULL,             "element that will be left behind"
4376   },
4377
4378   // ---------- element settings: advanced (custom elements) ------------------
4379
4380   // ---------- custom change target ------------------------------------------
4381
4382   {
4383     ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
4384     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4385     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4386     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
4387     &custom_element_change.target_element, 1, 1,
4388     NULL, "after/when:", NULL, NULL,    "new target element after change"
4389   },
4390
4391   // ---------- custom change content (extended change target) ----------------
4392
4393   {
4394     ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
4395     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
4396     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4397     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
4398     &custom_element_change.target_content.e[0][0], 3, 3,
4399     NULL, NULL, NULL, NULL,             "new extended elements after change"
4400   },
4401
4402   // ---------- custom change trigger (element causing change) ----------------
4403
4404   {
4405     ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
4406     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
4407     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4408     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
4409     &custom_element_change.initial_trigger_element, 1, 1,
4410     NULL, NULL, NULL, NULL,             "other element triggering change"
4411   },
4412
4413   // ---------- custom change action (element used for action) ----------------
4414
4415   {
4416     ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
4417     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
4418     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4419     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
4420     &custom_element_change.action_element, 1, 1,
4421     NULL, NULL, NULL, NULL,             "element used as action parameter"
4422   },
4423
4424   // ---------- group element content -----------------------------------------
4425
4426   {
4427     ED_DRAWING_ID_GROUP_CONTENT,
4428     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4429     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4430     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
4431     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
4432     "content:", NULL, NULL, NULL,       NULL
4433   },
4434
4435   // ---------- random background (for random painting) -----------------------
4436
4437   {
4438     ED_DRAWING_ID_RANDOM_BACKGROUND,
4439     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
4440     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
4441     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
4442     &random_placement_background_element, 1, 1,
4443     NULL, NULL, NULL, NULL,             "random placement background"
4444   },
4445 };
4446
4447
4448 // ----------------------------------------------------------------------------
4449 // some internally used variables
4450 // ----------------------------------------------------------------------------
4451
4452 // maximal size of level editor drawing area
4453 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
4454
4455 // actual size of level editor drawing area
4456 static int ed_fieldx, ed_fieldy;
4457
4458 // actual position of level editor drawing area in level playfield
4459 static int level_xpos = -1, level_ypos = -1;
4460
4461 // actual tile size used to display playfield drawing area
4462 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
4463 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
4464
4465 #define IN_ED_FIELD(x, y)       IN_FIELD(x, y, ed_fieldx, ed_fieldy)
4466
4467 // drawing elements on the three mouse buttons
4468 static int new_element1 = EL_WALL;
4469 static int new_element2 = EL_EMPTY;
4470 static int new_element3 = EL_SAND;
4471
4472 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
4473 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
4474                                 (button) == 2 ? new_element2 : \
4475                                 (button) == 3 ? new_element3 : EL_EMPTY)
4476
4477 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
4478
4479 static int use_permanent_palette = TRUE;
4480
4481 #define PX              (use_permanent_palette ? DX : SX)
4482 #define PY              (use_permanent_palette ? DY : SY)
4483 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
4484 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
4485
4486 // forward declaration for internal use
4487 static void CopyBrushToCursor(int, int);
4488 static void DeleteBrushFromCursor(void);
4489 static void ModifyEditorCounterValue(int, int);
4490 static void ModifyEditorCounterLimits(int, int, int);
4491 static void ModifyEditorSelectboxValue(int, int);
4492 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
4493 static void ModifyEditorDrawingArea(int, int, int);
4494 static void ModifyEditorElementList(void);
4495 static void AdjustElementListScrollbar(void);
4496 static void RedrawDrawingElements(void);
4497 static void DrawDrawingWindowExt(boolean);
4498 static void DrawDrawingWindow(void);
4499 static void DrawLevelConfigWindow(void);
4500 static void DrawPropertiesWindow(void);
4501 static void DrawPaletteWindow(void);
4502 static void UpdateCustomElementGraphicGadgets(void);
4503 static boolean checkPropertiesConfig(int);
4504 static void SetAutomaticNumberOfGemsNeeded(void);
4505 static void ClearEditorGadgetInfoText(void);
4506 static void CopyLevelToUndoBuffer(int);
4507 static void HandleDrawingAreas(struct GadgetInfo *);
4508 static void HandleCounterButtons(struct GadgetInfo *);
4509 static void HandleTextInputGadgets(struct GadgetInfo *);
4510 static void HandleTextAreaGadgets(struct GadgetInfo *);
4511 static void HandleSelectboxGadgets(struct GadgetInfo *);
4512 static void HandleTextbuttonGadgets(struct GadgetInfo *);
4513 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
4514 static void HandleRadiobuttons(struct GadgetInfo *);
4515 static void HandleCheckbuttons(struct GadgetInfo *);
4516 static void HandleControlButtons(struct GadgetInfo *);
4517 static void HandleDrawingAreaInfo(struct GadgetInfo *);
4518 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
4519 static boolean AskToCopyAndModifyLevelTemplate(void);
4520 static boolean getDrawModeHiRes(void);
4521 static int getTabulatorBarWidth(void);
4522 static int getTabulatorBarHeight(void);
4523 static Pixel getTabulatorBarColor(void);
4524 static int numHiresTiles(int);
4525
4526 static int num_editor_gadgets = 0;      // dynamically determined
4527
4528 static struct GadgetInfo **level_editor_gadget = NULL;
4529 static int *right_gadget_border = NULL;
4530
4531 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
4532 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
4533 static boolean draw_with_brush = FALSE;
4534 static int properties_element = 0;
4535
4536 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4537 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4538 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4539 static int undo_buffer_position = 0;
4540 static int undo_buffer_steps = 0;
4541 static int redo_buffer_steps = 0;
4542
4543 static int edit_mode;
4544 static int edit_mode_levelconfig;
4545 static int edit_mode_properties;
4546
4547 static int element_shift = 0;
4548
4549 static int editor_el_players[] =
4550 {
4551   EL_PLAYER_1,
4552   EL_PLAYER_2,
4553   EL_PLAYER_3,
4554   EL_PLAYER_4
4555 };
4556 static int *editor_el_players_ptr = editor_el_players;
4557 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
4558
4559 static int editor_hl_boulderdash[] =
4560 {
4561   EL_INTERNAL_CASCADE_BD_ACTIVE,
4562   EL_CHAR('B'),
4563   EL_CHAR('D'),
4564   EL_EMPTY,
4565 };
4566
4567 static int editor_el_boulderdash[] =
4568 {
4569   EL_EMPTY,
4570   EL_SAND,
4571   EL_BD_ROCK,
4572   EL_BD_DIAMOND,
4573
4574   EL_STEELWALL,
4575   EL_BD_WALL,
4576   EL_BD_EXPANDABLE_WALL,
4577   EL_BD_MAGIC_WALL,
4578
4579   EL_BD_AMOEBA,
4580   EL_BD_BUTTERFLY_UP,
4581   EL_BD_FIREFLY_UP,
4582   EL_EXIT_CLOSED,
4583
4584   EL_BD_BUTTERFLY_LEFT,
4585   EL_BD_FIREFLY_LEFT,
4586   EL_BD_BUTTERFLY_RIGHT,
4587   EL_BD_FIREFLY_RIGHT,
4588
4589   EL_EMPTY,
4590   EL_BD_BUTTERFLY_DOWN,
4591   EL_BD_FIREFLY_DOWN,
4592   EL_EXIT_OPEN,
4593 };
4594 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4595 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4596 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4597 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4598
4599 static int editor_hl_boulderdash_native[] =
4600 {
4601   EL_INTERNAL_CASCADE_BD_NATIVE_ACTIVE,
4602   EL_CHAR('B'),
4603   EL_CHAR('D'),
4604   EL_EMPTY,
4605 };
4606
4607 static int editor_el_boulderdash_native[] =
4608 {
4609   EL_EMPTY,
4610   EL_BD_SAND,
4611   EL_BD_ROCK,
4612   EL_BD_DIAMOND,
4613
4614   EL_BD_STEELWALL,
4615   EL_BD_WALL,
4616   EL_EMPTY,
4617   EL_BD_MAGIC_WALL,
4618
4619   EL_BD_AMOEBA,
4620   EL_BD_BUTTERFLY_UP,
4621   EL_BD_FIREFLY_UP,
4622   EL_BD_EXIT_CLOSED,
4623
4624   EL_BD_BUTTERFLY_LEFT,
4625   EL_BD_FIREFLY_LEFT,
4626   EL_BD_BUTTERFLY_RIGHT,
4627   EL_BD_FIREFLY_RIGHT,
4628
4629   EL_BD_INBOX,
4630   EL_BD_BUTTERFLY_DOWN,
4631   EL_BD_FIREFLY_DOWN,
4632   EL_BD_EXIT_OPEN,
4633
4634   EL_BD_AMOEBA_2,
4635   EL_BD_BUTTERFLY_2_UP,
4636   EL_BD_FIREFLY_2_UP,
4637   EL_EMPTY,
4638
4639   EL_BD_BUTTERFLY_2_LEFT,
4640   EL_BD_FIREFLY_2_LEFT,
4641   EL_BD_BUTTERFLY_2_RIGHT,
4642   EL_BD_FIREFLY_2_RIGHT,
4643
4644   EL_EMPTY,
4645   EL_BD_BUTTERFLY_2_DOWN,
4646   EL_BD_FIREFLY_2_DOWN,
4647   EL_EMPTY,
4648
4649   EL_EMPTY,
4650   EL_BD_DRAGONFLY_UP,
4651   EL_BD_STONEFLY_UP,
4652   EL_EMPTY,
4653
4654   EL_BD_DRAGONFLY_LEFT,
4655   EL_BD_STONEFLY_LEFT,
4656   EL_BD_DRAGONFLY_RIGHT,
4657   EL_BD_STONEFLY_RIGHT,
4658
4659   EL_EMPTY,
4660   EL_BD_DRAGONFLY_DOWN,
4661   EL_BD_STONEFLY_DOWN,
4662   EL_EMPTY,
4663
4664   EL_EMPTY,
4665   EL_BD_BITER_UP,
4666   EL_BD_COW_UP,
4667   EL_EMPTY,
4668
4669   EL_BD_BITER_LEFT,
4670   EL_BD_COW_LEFT,
4671   EL_BD_BITER_RIGHT,
4672   EL_BD_COW_RIGHT,
4673
4674   EL_EMPTY,
4675   EL_BD_BITER_DOWN,
4676   EL_BD_COW_DOWN,
4677   EL_EMPTY,
4678
4679   EL_EMPTY,
4680   EL_BD_SAND,
4681   EL_BD_SAND_BALL,
4682   EL_BD_SAND_LOOSE,
4683
4684   EL_BD_SAND_SLOPED_UP_LEFT,
4685   EL_BD_SAND_SLOPED_UP_RIGHT,
4686   EL_BD_WALL_SLOPED_UP_LEFT,
4687   EL_BD_WALL_SLOPED_UP_RIGHT,
4688
4689   EL_BD_SAND_SLOPED_DOWN_LEFT,
4690   EL_BD_SAND_SLOPED_DOWN_RIGHT,
4691   EL_BD_WALL_SLOPED_DOWN_LEFT,
4692   EL_BD_WALL_SLOPED_DOWN_RIGHT,
4693
4694   EL_BD_FLYING_DIAMOND,
4695   EL_BD_FLYING_ROCK,
4696   EL_BD_STEELWALL_SLOPED_UP_LEFT,
4697   EL_BD_STEELWALL_SLOPED_UP_RIGHT,
4698
4699   EL_BD_NUT,
4700   EL_BD_MEGA_ROCK,
4701   EL_BD_STEELWALL_SLOPED_DOWN_LEFT,
4702   EL_BD_STEELWALL_SLOPED_DOWN_RIGHT,
4703
4704   EL_BD_SAND_2,
4705   EL_BD_WALL_NON_SLOPED,
4706   EL_BD_WALL,
4707   EL_BD_MAGIC_WALL,
4708
4709   EL_BD_EXIT_CLOSED,
4710   EL_BD_EXIT_OPEN,
4711   EL_BD_INVISIBLE_EXIT_CLOSED,
4712   EL_BD_INVISIBLE_EXIT_OPEN,
4713
4714   EL_BD_STEELWALL,
4715   EL_BD_STEELWALL_EXPLODABLE,
4716   EL_BD_STEELWALL_DIGGABLE,
4717   EL_BD_WALL_DIGGABLE,
4718
4719   EL_BD_EXPANDABLE_WALL_HORIZONTAL,
4720   EL_BD_EXPANDABLE_WALL_VERTICAL,
4721   EL_BD_EXPANDABLE_WALL_ANY,
4722   EL_BD_CREATURE_SWITCH,
4723
4724   EL_BD_EXPANDABLE_STEELWALL_HORIZONTAL,
4725   EL_BD_EXPANDABLE_STEELWALL_VERTICAL,
4726   EL_BD_EXPANDABLE_STEELWALL_ANY,
4727   EL_BD_EXPANDABLE_WALL_SWITCH_HORIZONTAL,
4728
4729   EL_BD_BITER_SWITCH_1,
4730   EL_BD_REPLICATOR_SWITCH,
4731   EL_BD_CONVEYOR_SWITCH,
4732   EL_BD_CONVEYOR_DIR_SWITCH_RIGHT,
4733
4734   EL_BD_ACID,
4735   EL_BD_FALLING_WALL,
4736   EL_BD_BOX,
4737   EL_BD_TIME_PENALTY,
4738
4739   EL_BD_GRAVESTONE,
4740   EL_BD_ROCK_GLUED,
4741   EL_BD_DIAMOND_GLUED,
4742   EL_BD_DIAMOND_KEY,
4743
4744   EL_BD_TRAPPED_DIAMOND,
4745   EL_BD_CLOCK,
4746   EL_BD_SAND_GLUED,
4747   EL_BD_WATER,
4748
4749   EL_BD_KEY_1,
4750   EL_BD_KEY_2,
4751   EL_BD_KEY_3,
4752   EL_EMPTY,
4753
4754   EL_BD_WALL_KEY_1,
4755   EL_BD_WALL_KEY_2,
4756   EL_BD_WALL_KEY_3,
4757   EL_BD_WALL_DIAMOND,
4758
4759   EL_BD_GATE_1,
4760   EL_BD_GATE_2,
4761   EL_BD_GATE_3,
4762   EL_BD_POT,
4763
4764   EL_BD_GRAVITY_SWITCH,
4765   EL_BD_PNEUMATIC_HAMMER,
4766   EL_BD_TELEPORTER,
4767   EL_BD_SKELETON,
4768
4769   EL_BD_AMOEBA,
4770   EL_BD_AMOEBA_2,
4771   EL_BD_REPLICATOR,
4772   EL_BD_BLADDER_SPENDER,
4773
4774   EL_BD_CONVEYOR_LEFT,
4775   EL_BD_CONVEYOR_RIGHT,
4776   EL_BD_BOMB,
4777   EL_BD_NITRO_PACK,
4778
4779   EL_BD_LAVA,
4780   EL_BD_SWEET,
4781   EL_BD_VOODOO_DOLL,
4782   EL_BD_SLIME,
4783
4784   EL_BD_BLADDER,
4785   EL_BD_WAITING_ROCK,
4786   EL_BD_CHASING_ROCK,
4787   EL_BD_GHOST,
4788
4789   EL_BD_PLAYER,
4790   EL_BD_PLAYER_WITH_BOMB,
4791   EL_BD_PLAYER_GLUED,
4792   EL_BD_PLAYER_STIRRING,
4793 };
4794 static int *editor_hl_boulderdash_native_ptr = editor_hl_boulderdash_native;
4795 static int *editor_el_boulderdash_native_ptr = editor_el_boulderdash_native;
4796 static int num_editor_hl_boulderdash_native = ARRAY_SIZE(editor_hl_boulderdash_native);
4797 static int num_editor_el_boulderdash_native = ARRAY_SIZE(editor_el_boulderdash_native);
4798
4799 static int editor_hl_emerald_mine[] =
4800 {
4801   EL_INTERNAL_CASCADE_EM_ACTIVE,
4802   EL_CHAR('E'),
4803   EL_CHAR('M'),
4804   EL_EMPTY,
4805 };
4806
4807 static int editor_el_emerald_mine[] =
4808 {
4809   EL_SAND,
4810   EL_ROCK,
4811   EL_QUICKSAND_EMPTY,
4812   EL_QUICKSAND_FULL,
4813
4814   EL_STEELWALL,
4815   EL_WALL,
4816   EL_WALL_SLIPPERY,
4817   EL_MAGIC_WALL,
4818
4819   EL_EMERALD,
4820   EL_DIAMOND,
4821   EL_NUT,
4822   EL_BOMB,
4823
4824   EL_EM_DYNAMITE,
4825   EL_EM_DYNAMITE_ACTIVE,
4826   EL_EM_EXIT_CLOSED,
4827   EL_EM_EXIT_OPEN,
4828
4829   EL_YAMYAM_UP,
4830   EL_BUG_UP,
4831   EL_SPACESHIP_UP,
4832   EL_ROBOT,
4833
4834   EL_BUG_LEFT,
4835   EL_SPACESHIP_LEFT,
4836   EL_BUG_RIGHT,
4837   EL_SPACESHIP_RIGHT,
4838
4839   EL_ROBOT_WHEEL,
4840   EL_BUG_DOWN,
4841   EL_SPACESHIP_DOWN,
4842   EL_INVISIBLE_WALL,
4843
4844   EL_ACID_POOL_TOPLEFT,
4845   EL_ACID,
4846   EL_ACID_POOL_TOPRIGHT,
4847   EL_AMOEBA_DROP,
4848
4849   EL_ACID_POOL_BOTTOMLEFT,
4850   EL_ACID_POOL_BOTTOM,
4851   EL_ACID_POOL_BOTTOMRIGHT,
4852   EL_AMOEBA_WET,
4853
4854   EL_EM_KEY_1,
4855   EL_EM_KEY_2,
4856   EL_EM_KEY_3,
4857   EL_EM_KEY_4,
4858
4859   EL_EM_GATE_1,
4860   EL_EM_GATE_2,
4861   EL_EM_GATE_3,
4862   EL_EM_GATE_4,
4863
4864   EL_EM_GATE_1_GRAY,
4865   EL_EM_GATE_2_GRAY,
4866   EL_EM_GATE_3_GRAY,
4867   EL_EM_GATE_4_GRAY,
4868 };
4869 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
4870 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
4871 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
4872 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
4873
4874 static int editor_hl_emerald_mine_club[] =
4875 {
4876   EL_INTERNAL_CASCADE_EMC_ACTIVE,
4877   EL_CHAR('E'),
4878   EL_CHAR('M'),
4879   EL_CHAR('C'),
4880 };
4881
4882 static int editor_el_emerald_mine_club[] =
4883 {
4884   EL_EMC_KEY_5,
4885   EL_EMC_KEY_6,
4886   EL_EMC_KEY_7,
4887   EL_EMC_KEY_8,
4888
4889   EL_EMC_GATE_5,
4890   EL_EMC_GATE_6,
4891   EL_EMC_GATE_7,
4892   EL_EMC_GATE_8,
4893
4894   EL_EMC_GATE_5_GRAY,
4895   EL_EMC_GATE_6_GRAY,
4896   EL_EMC_GATE_7_GRAY,
4897   EL_EMC_GATE_8_GRAY,
4898
4899   EL_EMC_STEELWALL_1,
4900   EL_EMC_STEELWALL_2,
4901   EL_EMC_STEELWALL_3,
4902   EL_EMC_STEELWALL_4,
4903
4904   EL_EMC_WALL_13,
4905   EL_EMC_WALL_14,
4906   EL_EMC_WALL_15,
4907   EL_EMC_WALL_16,
4908
4909   EL_EMC_WALL_SLIPPERY_1,
4910   EL_EMC_WALL_SLIPPERY_2,
4911   EL_EMC_WALL_SLIPPERY_3,
4912   EL_EMC_WALL_SLIPPERY_4,
4913
4914   EL_EMC_WALL_1,
4915   EL_EMC_WALL_2,
4916   EL_EMC_WALL_3,
4917   EL_EMC_WALL_4,
4918
4919   EL_EMC_WALL_5,
4920   EL_EMC_WALL_6,
4921   EL_EMC_WALL_7,
4922   EL_EMC_WALL_8,
4923
4924   EL_EMC_WALL_9,
4925   EL_EMC_WALL_10,
4926   EL_EMC_WALL_11,
4927   EL_EMC_WALL_12,
4928
4929   EL_EMC_GRASS,
4930   EL_EMC_FAKE_GRASS,
4931   EL_EMC_PLANT,
4932   EL_EMC_DRIPPER,
4933
4934   EL_EMC_MAGIC_BALL,
4935   EL_EMC_MAGIC_BALL_SWITCH,
4936   EL_EMC_LENSES,
4937   EL_EMC_MAGNIFIER,
4938
4939   EL_SPRING_LEFT,
4940   EL_SPRING,
4941   EL_SPRING_RIGHT,
4942   EL_EMC_SPRING_BUMPER,
4943
4944   EL_BALLOON,
4945   EL_YAMYAM_UP,
4946   EL_BALLOON_SWITCH_UP,
4947   EL_BALLOON_SWITCH_ANY,
4948
4949   EL_YAMYAM_LEFT,
4950   EL_BALLOON_SWITCH_LEFT,
4951   EL_YAMYAM_RIGHT,
4952   EL_BALLOON_SWITCH_RIGHT,
4953
4954   EL_EMC_ANDROID,
4955   EL_YAMYAM_DOWN,
4956   EL_BALLOON_SWITCH_DOWN,
4957   EL_BALLOON_SWITCH_NONE,
4958 };
4959 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
4960 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
4961 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
4962 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
4963
4964 static int editor_hl_rnd[] =
4965 {
4966   EL_INTERNAL_CASCADE_RND_ACTIVE,
4967   EL_CHAR('R'),
4968   EL_CHAR('N'),
4969   EL_CHAR('D'),
4970 };
4971
4972 static int editor_el_rnd[] =
4973 {
4974   EL_DYNAMITE,                  // RND
4975   EL_DYNAMITE_ACTIVE,           // RND
4976   EL_EMPTY,
4977   EL_EMPTY,
4978
4979   EL_KEY_1,
4980   EL_KEY_2,
4981   EL_KEY_3,
4982   EL_KEY_4,
4983
4984   EL_GATE_1,
4985   EL_GATE_2,
4986   EL_GATE_3,
4987   EL_GATE_4,
4988
4989   EL_GATE_1_GRAY,
4990   EL_GATE_2_GRAY,
4991   EL_GATE_3_GRAY,
4992   EL_GATE_4_GRAY,
4993
4994   EL_ARROW_LEFT,
4995   EL_ARROW_RIGHT,
4996   EL_ARROW_UP,
4997   EL_ARROW_DOWN,
4998
4999   EL_AMOEBA_DEAD,
5000   EL_AMOEBA_DRY,
5001   EL_AMOEBA_FULL,
5002   EL_GAME_OF_LIFE,
5003
5004   EL_EMERALD_YELLOW,
5005   EL_EMERALD_RED,
5006   EL_EMERALD_PURPLE,
5007   EL_BIOMAZE,
5008
5009   EL_WALL_EMERALD_YELLOW,
5010   EL_WALL_EMERALD_RED,
5011   EL_WALL_EMERALD_PURPLE,
5012   EL_WALL_BD_DIAMOND,
5013
5014   EL_SPEED_PILL,
5015   EL_PACMAN_UP,
5016   EL_TIME_ORB_FULL,
5017   EL_TIME_ORB_EMPTY,
5018
5019   EL_PACMAN_LEFT,
5020   EL_DARK_YAMYAM,
5021   EL_PACMAN_RIGHT,
5022   EL_YAMYAM,                    // RND
5023
5024   EL_BLACK_ORB,
5025   EL_PACMAN_DOWN,
5026   EL_LAMP,
5027   EL_LAMP_ACTIVE,
5028
5029   EL_DYNABOMB_INCREASE_NUMBER,
5030   EL_DYNABOMB_INCREASE_SIZE,
5031   EL_DYNABOMB_INCREASE_POWER,
5032   EL_STONEBLOCK,
5033
5034   EL_MOLE,
5035   EL_PENGUIN,
5036   EL_PIG,
5037   EL_DRAGON,
5038
5039   EL_BUG,
5040   EL_MOLE_UP,
5041   EL_BD_BUTTERFLY,
5042   EL_BD_FIREFLY,
5043
5044   EL_MOLE_LEFT,
5045   EL_SATELLITE,
5046   EL_MOLE_RIGHT,
5047   EL_PACMAN,
5048
5049   EL_SPACESHIP,
5050   EL_MOLE_DOWN,
5051   EL_INVISIBLE_STEELWALL,
5052   EL_INVISIBLE_WALL,
5053
5054   EL_EXPANDABLE_WALL,
5055   EL_EXPANDABLE_WALL_HORIZONTAL,
5056   EL_EXPANDABLE_WALL_VERTICAL,
5057   EL_EXPANDABLE_WALL_ANY,
5058 };
5059 static int *editor_hl_rnd_ptr = editor_hl_rnd;
5060 static int *editor_el_rnd_ptr = editor_el_rnd;
5061 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
5062 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
5063
5064 static int editor_hl_sokoban[] =
5065 {
5066   EL_INTERNAL_CASCADE_SB_ACTIVE,
5067   EL_CHAR('S'),
5068   EL_CHAR('B'),
5069   EL_EMPTY,
5070 };
5071
5072 static int editor_el_sokoban[] =
5073 {
5074   EL_SOKOBAN_OBJECT,
5075   EL_SOKOBAN_FIELD_EMPTY,
5076   EL_SOKOBAN_FIELD_FULL,
5077   EL_SOKOBAN_FIELD_PLAYER,
5078 };
5079 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
5080 static int *editor_el_sokoban_ptr = editor_el_sokoban;
5081 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
5082 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
5083
5084 static int editor_hl_supaplex[] =
5085 {
5086   EL_INTERNAL_CASCADE_SP_ACTIVE,
5087   EL_CHAR('S'),
5088   EL_CHAR('P'),
5089   EL_EMPTY,
5090 };
5091
5092 static int editor_el_supaplex[] =
5093 {
5094   EL_SP_MURPHY,
5095   EL_EMPTY,
5096   EL_SP_BASE,
5097   EL_SP_BUGGY_BASE,
5098
5099   EL_SP_INFOTRON,
5100   EL_SP_ZONK,
5101   EL_SP_SNIKSNAK,
5102   EL_SP_ELECTRON,
5103
5104   EL_SP_DISK_RED,
5105   EL_SP_DISK_ORANGE,
5106   EL_SP_DISK_YELLOW,
5107   EL_SP_TERMINAL,
5108
5109   EL_SP_EXIT_CLOSED,
5110   EL_SP_PORT_HORIZONTAL,
5111   EL_SP_PORT_VERTICAL,
5112   EL_SP_PORT_ANY,
5113
5114   EL_SP_PORT_LEFT,
5115   EL_SP_PORT_RIGHT,
5116   EL_SP_PORT_UP,
5117   EL_SP_PORT_DOWN,
5118
5119   EL_SP_GRAVITY_PORT_LEFT,
5120   EL_SP_GRAVITY_PORT_RIGHT,
5121   EL_SP_GRAVITY_PORT_UP,
5122   EL_SP_GRAVITY_PORT_DOWN,
5123
5124   EL_SP_GRAVITY_ON_PORT_LEFT,
5125   EL_SP_GRAVITY_ON_PORT_RIGHT,
5126   EL_SP_GRAVITY_ON_PORT_UP,
5127   EL_SP_GRAVITY_ON_PORT_DOWN,
5128
5129   EL_SP_GRAVITY_OFF_PORT_LEFT,
5130   EL_SP_GRAVITY_OFF_PORT_RIGHT,
5131   EL_SP_GRAVITY_OFF_PORT_UP,
5132   EL_SP_GRAVITY_OFF_PORT_DOWN,
5133
5134   EL_SP_HARDWARE_GRAY,
5135   EL_SP_HARDWARE_GREEN,
5136   EL_SP_HARDWARE_BLUE,
5137   EL_SP_HARDWARE_RED,
5138
5139   EL_SP_HARDWARE_BASE_1,
5140   EL_SP_HARDWARE_BASE_2,
5141   EL_SP_HARDWARE_BASE_3,
5142   EL_SP_HARDWARE_BASE_4,
5143
5144   EL_SP_HARDWARE_BASE_5,
5145   EL_SP_HARDWARE_BASE_6,
5146   EL_SP_HARDWARE_YELLOW,
5147   EL_SP_CHIP_TOP,
5148
5149   EL_SP_CHIP_SINGLE,
5150   EL_SP_CHIP_LEFT,
5151   EL_SP_CHIP_RIGHT,
5152   EL_SP_CHIP_BOTTOM,
5153 };
5154 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
5155 static int *editor_el_supaplex_ptr = editor_el_supaplex;
5156 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
5157 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
5158
5159 static int editor_hl_diamond_caves[] =
5160 {
5161   EL_INTERNAL_CASCADE_DC_ACTIVE,
5162   EL_CHAR('D'),
5163   EL_CHAR('C'),
5164   EL_CHAR('2'),
5165 };
5166
5167 static int editor_el_diamond_caves[] =
5168 {
5169   EL_EM_STEEL_EXIT_CLOSED,      // DC2
5170   EL_EM_STEEL_EXIT_OPEN,        // DC2
5171   EL_WALL_EMERALD,              // DC2
5172   EL_WALL_DIAMOND,              // DC2
5173
5174   EL_PEARL,
5175   EL_CRYSTAL,
5176   EL_WALL_PEARL,
5177   EL_WALL_CRYSTAL,
5178
5179   EL_CONVEYOR_BELT_1_LEFT,
5180   EL_CONVEYOR_BELT_1_MIDDLE,
5181   EL_CONVEYOR_BELT_1_RIGHT,
5182   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
5183
5184   EL_CONVEYOR_BELT_2_LEFT,
5185   EL_CONVEYOR_BELT_2_MIDDLE,
5186   EL_CONVEYOR_BELT_2_RIGHT,
5187   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
5188
5189   EL_CONVEYOR_BELT_3_LEFT,
5190   EL_CONVEYOR_BELT_3_MIDDLE,
5191   EL_CONVEYOR_BELT_3_RIGHT,
5192   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
5193
5194   EL_CONVEYOR_BELT_4_LEFT,
5195   EL_CONVEYOR_BELT_4_MIDDLE,
5196   EL_CONVEYOR_BELT_4_RIGHT,
5197   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
5198
5199   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
5200   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
5201   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
5202   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
5203
5204   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
5205   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
5206   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
5207   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
5208
5209   EL_TIMEGATE_CLOSED,
5210   EL_TIMEGATE_OPEN,
5211   EL_TIMEGATE_SWITCH,
5212   EL_DC_TIMEGATE_SWITCH,
5213
5214   EL_SWITCHGATE_CLOSED,
5215   EL_SWITCHGATE_OPEN,
5216   EL_SWITCHGATE_SWITCH_UP,
5217   EL_SWITCHGATE_SWITCH_DOWN,
5218
5219   EL_LIGHT_SWITCH,
5220   EL_LIGHT_SWITCH_ACTIVE,
5221   EL_DC_SWITCHGATE_SWITCH_UP,
5222   EL_DC_SWITCHGATE_SWITCH_DOWN,
5223
5224   EL_STEEL_EXIT_CLOSED,
5225   EL_STEEL_EXIT_OPEN,
5226   EL_STEELWALL_SLIPPERY,
5227   EL_INVISIBLE_SAND,
5228
5229   EL_QUICKSAND_FAST_EMPTY,
5230   EL_QUICKSAND_FAST_FULL,
5231   EL_LANDMINE,
5232   EL_DC_LANDMINE,
5233
5234   EL_SHIELD_NORMAL,
5235   EL_SHIELD_DEADLY,
5236   EL_EXTRA_TIME,
5237   EL_DC_MAGIC_WALL,
5238
5239   EL_ENVELOPE_1,
5240   EL_ENVELOPE_2,
5241   EL_ENVELOPE_3,
5242   EL_ENVELOPE_4,
5243
5244   EL_SIGN_RADIOACTIVITY,
5245   EL_SIGN_WHEELCHAIR,
5246   EL_SIGN_PARKING,
5247   EL_SIGN_NO_ENTRY,
5248
5249   EL_SIGN_GIVE_WAY,
5250   EL_SIGN_ENTRY_FORBIDDEN,
5251   EL_SIGN_EMERGENCY_EXIT,
5252   EL_SIGN_YIN_YANG,
5253
5254 #if 0
5255   EL_SIGN_SPERMS,
5256   EL_SIGN_BULLET,
5257   EL_SIGN_HEART,
5258   EL_SIGN_CROSS,
5259
5260   EL_SIGN_FRANKIE,
5261   EL_EMPTY,
5262   EL_EMPTY,
5263   EL_EMPTY,
5264
5265   EL_SPERMS,
5266   EL_BULLET,
5267   EL_HEART,
5268   EL_CROSS,
5269
5270   EL_FRANKIE,
5271   EL_EMPTY,
5272   EL_EMPTY,
5273   EL_EMPTY,
5274 #endif
5275
5276   EL_DC_STEELWALL_2_SINGLE,
5277   EL_DC_STEELWALL_2_TOP,
5278   EL_SIGN_EXCLAMATION,
5279   EL_SIGN_STOP,
5280
5281   EL_DC_STEELWALL_2_LEFT,
5282   EL_DC_STEELWALL_2_MIDDLE,
5283   EL_DC_STEELWALL_2_HORIZONTAL,
5284   EL_DC_STEELWALL_2_RIGHT,
5285
5286   EL_DC_STEELWALL_1_TOPLEFT,
5287   EL_DC_STEELWALL_2_VERTICAL,
5288   EL_DC_STEELWALL_1_TOPRIGHT,
5289   EL_DC_GATE_WHITE,
5290
5291   EL_DC_STEELWALL_1_VERTICAL,
5292   EL_DC_STEELWALL_2_BOTTOM,
5293   EL_DC_KEY_WHITE,
5294   EL_DC_GATE_WHITE_GRAY,
5295
5296   EL_DC_STEELWALL_1_BOTTOMLEFT,
5297   EL_DC_STEELWALL_1_HORIZONTAL,
5298   EL_DC_STEELWALL_1_BOTTOMRIGHT,
5299   EL_DC_GATE_FAKE_GRAY,
5300
5301   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
5302   EL_DC_STEELWALL_1_BOTTOM,
5303   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
5304   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
5305
5306   EL_DC_STEELWALL_1_RIGHT,
5307   EL_EMPTY,
5308   EL_DC_STEELWALL_1_LEFT,
5309   EL_EXPANDABLE_STEELWALL_VERTICAL,
5310
5311   EL_DC_STEELWALL_1_TOPRIGHT_2,
5312   EL_DC_STEELWALL_1_TOP,
5313   EL_DC_STEELWALL_1_TOPLEFT_2,
5314   EL_EXPANDABLE_STEELWALL_ANY,
5315 };
5316 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
5317 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
5318 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
5319 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
5320
5321 static int editor_hl_dx_boulderdash[] =
5322 {
5323   EL_INTERNAL_CASCADE_DX_ACTIVE,
5324   EL_CHAR('D'),
5325   EL_CHAR('X'),
5326   EL_EMPTY,
5327 };
5328
5329 static int editor_el_dx_boulderdash[] =
5330 {
5331   EL_EMPTY,
5332   EL_TUBE_RIGHT_DOWN,
5333   EL_TUBE_HORIZONTAL_DOWN,
5334   EL_TUBE_LEFT_DOWN,
5335
5336   EL_TUBE_HORIZONTAL,
5337   EL_TUBE_VERTICAL_RIGHT,
5338   EL_TUBE_ANY,
5339   EL_TUBE_VERTICAL_LEFT,
5340
5341   EL_TUBE_VERTICAL,
5342   EL_TUBE_RIGHT_UP,
5343   EL_TUBE_HORIZONTAL_UP,
5344   EL_TUBE_LEFT_UP,
5345
5346   EL_TRAP,
5347   EL_DX_SUPABOMB,
5348   EL_EMPTY,
5349   EL_EMPTY
5350 };
5351 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
5352 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
5353 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
5354 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
5355
5356 static int editor_hl_mirror_magic[] =
5357 {
5358   EL_INTERNAL_CASCADE_MM_ACTIVE,
5359   EL_CHAR('M'),
5360   EL_CHAR('M'),
5361   EL_EMPTY,
5362 };
5363
5364 static int editor_el_mirror_magic[] =
5365 {
5366   EL_MM_MCDUFFIN_RIGHT,
5367   EL_MM_MCDUFFIN_UP,
5368   EL_MM_MCDUFFIN_LEFT,
5369   EL_MM_MCDUFFIN_DOWN,
5370
5371   EL_MM_MIRROR_START,
5372   EL_MM_MIRROR_FIXED_START,
5373   EL_MM_POLARIZER_START,
5374   EL_MM_POLARIZER_CROSS_START,
5375
5376   EL_MM_TELEPORTER_RED_START,
5377   EL_MM_TELEPORTER_YELLOW_START,
5378   EL_MM_TELEPORTER_GREEN_START,
5379   EL_MM_TELEPORTER_BLUE_START,
5380
5381   EL_MM_PRISM,
5382   EL_MM_FUSE_ACTIVE,
5383   EL_MM_PACMAN_RIGHT,
5384   EL_MM_EXIT_CLOSED,
5385
5386   EL_MM_KETTLE,
5387   EL_MM_BOMB,
5388   EL_MM_KEY,
5389   EL_MM_FUEL_FULL,
5390
5391   EL_MM_LIGHTBULB,
5392   EL_MM_LIGHTBULB_ACTIVE,
5393   EL_MM_GRAY_BALL,
5394   EL_MM_LIGHTBALL,
5395
5396   EL_MM_STEEL_WALL,
5397   EL_MM_WOODEN_WALL,
5398   EL_MM_ICE_WALL,
5399   EL_MM_AMOEBA_WALL,
5400
5401   EL_MM_STEEL_LOCK,
5402   EL_MM_WOODEN_LOCK,
5403   EL_MM_STEEL_BLOCK,
5404   EL_MM_WOODEN_BLOCK,
5405
5406   EL_MM_STEEL_GRID_FIXED_1,
5407   EL_MM_STEEL_GRID_FIXED_2,
5408   EL_MM_STEEL_GRID_FIXED_3,
5409   EL_MM_STEEL_GRID_FIXED_4,
5410
5411   EL_MM_WOODEN_GRID_FIXED_1,
5412   EL_MM_WOODEN_GRID_FIXED_2,
5413   EL_MM_WOODEN_GRID_FIXED_3,
5414   EL_MM_WOODEN_GRID_FIXED_4,
5415
5416   EL_MM_ENVELOPE_1,
5417   EL_MM_ENVELOPE_2,
5418   EL_MM_ENVELOPE_3,
5419   EL_MM_ENVELOPE_4
5420 };
5421 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
5422 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
5423 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
5424 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
5425
5426 static int editor_hl_deflektor[] =
5427 {
5428   EL_INTERNAL_CASCADE_DF_ACTIVE,
5429   EL_CHAR('D'),
5430   EL_CHAR('F'),
5431   EL_EMPTY,
5432 };
5433
5434 static int editor_el_deflektor[] =
5435 {
5436   EL_DF_LASER_RIGHT,
5437   EL_DF_LASER_UP,
5438   EL_DF_LASER_LEFT,
5439   EL_DF_LASER_DOWN,
5440
5441   EL_DF_RECEIVER_RIGHT,
5442   EL_DF_RECEIVER_UP,
5443   EL_DF_RECEIVER_LEFT,
5444   EL_DF_RECEIVER_DOWN,
5445
5446   EL_DF_MIRROR_START,
5447   EL_DF_MIRROR_ROTATING_START,
5448   EL_DF_MIRROR_FIXED_START,
5449   EL_DF_CELL,
5450
5451   EL_DF_FIBRE_OPTIC_RED_1,
5452   EL_DF_FIBRE_OPTIC_YELLOW_1,
5453   EL_DF_FIBRE_OPTIC_GREEN_1,
5454   EL_DF_FIBRE_OPTIC_BLUE_1,
5455
5456   EL_DF_STEEL_GRID_FIXED_START,
5457   EL_DF_STEEL_GRID_ROTATING_START,
5458   EL_DF_WOODEN_GRID_FIXED_START,
5459   EL_DF_WOODEN_GRID_ROTATING_START,
5460
5461   EL_DF_STEEL_WALL,
5462   EL_DF_WOODEN_WALL,
5463   EL_DF_REFRACTOR,
5464   EL_DF_MINE,
5465
5466   EL_DF_SLOPE_1,
5467   EL_DF_SLOPE_2,
5468   EL_DF_SLOPE_3,
5469   EL_DF_SLOPE_4
5470 };
5471 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
5472 static int *editor_el_deflektor_ptr = editor_el_deflektor;
5473 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
5474 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
5475
5476 static int editor_hl_chars[] =
5477 {
5478   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
5479   EL_CHAR('T'),
5480   EL_CHAR('X'),
5481   EL_CHAR('T'),
5482 };
5483
5484 static int editor_el_chars[] =
5485 {
5486   EL_CHAR(' '),
5487   EL_CHAR('!'),
5488   EL_CHAR('"'),
5489   EL_CHAR('#'),
5490
5491   EL_CHAR('$'),
5492   EL_CHAR('%'),
5493   EL_CHAR('&'),
5494   EL_CHAR('\''),
5495
5496   EL_CHAR('('),
5497   EL_CHAR(')'),
5498   EL_CHAR('*'),
5499   EL_CHAR('+'),
5500
5501   EL_CHAR(','),
5502   EL_CHAR('-'),
5503   EL_CHAR('.'),
5504   EL_CHAR('/'),
5505
5506   EL_CHAR('0'),
5507   EL_CHAR('1'),
5508   EL_CHAR('2'),
5509   EL_CHAR('3'),
5510
5511   EL_CHAR('4'),
5512   EL_CHAR('5'),
5513   EL_CHAR('6'),
5514   EL_CHAR('7'),
5515
5516   EL_CHAR('8'),
5517   EL_CHAR('9'),
5518   EL_CHAR(':'),
5519   EL_CHAR(';'),
5520
5521   EL_CHAR('<'),
5522   EL_CHAR('='),
5523   EL_CHAR('>'),
5524   EL_CHAR('?'),
5525
5526   EL_CHAR('@'),
5527   EL_CHAR('A'),
5528   EL_CHAR('B'),
5529   EL_CHAR('C'),
5530
5531   EL_CHAR('D'),
5532   EL_CHAR('E'),
5533   EL_CHAR('F'),
5534   EL_CHAR('G'),
5535
5536   EL_CHAR('H'),
5537   EL_CHAR('I'),
5538   EL_CHAR('J'),
5539   EL_CHAR('K'),
5540
5541   EL_CHAR('L'),
5542   EL_CHAR('M'),
5543   EL_CHAR('N'),
5544   EL_CHAR('O'),
5545
5546   EL_CHAR('P'),
5547   EL_CHAR('Q'),
5548   EL_CHAR('R'),
5549   EL_CHAR('S'),
5550
5551   EL_CHAR('T'),
5552   EL_CHAR('U'),
5553   EL_CHAR('V'),
5554   EL_CHAR('W'),
5555
5556   EL_CHAR('X'),
5557   EL_CHAR('Y'),
5558   EL_CHAR('Z'),
5559   EL_CHAR('['),
5560
5561   EL_CHAR('\\'),
5562   EL_CHAR(']'),
5563   EL_CHAR('^'),
5564   EL_CHAR('_'),
5565
5566   EL_CHAR(CHAR_BYTE_COPYRIGHT),
5567   EL_CHAR(CHAR_BYTE_UMLAUT_A),
5568   EL_CHAR(CHAR_BYTE_UMLAUT_O),
5569   EL_CHAR(CHAR_BYTE_UMLAUT_U),
5570
5571   EL_CHAR(CHAR_BYTE_DEGREE),
5572   EL_CHAR(CHAR_BYTE_REGISTERED),
5573   EL_CHAR(FONT_ASCII_CURSOR),
5574   EL_CHAR(FONT_ASCII_BUTTON),
5575
5576   EL_CHAR(FONT_ASCII_UP),
5577   EL_CHAR(FONT_ASCII_DOWN),
5578   EL_CHAR(' '),
5579   EL_CHAR(' ')
5580 };
5581 static int *editor_hl_chars_ptr = editor_hl_chars;
5582 static int *editor_el_chars_ptr = editor_el_chars;
5583 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
5584 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
5585
5586 static int editor_hl_steel_chars[] =
5587 {
5588   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
5589   EL_STEEL_CHAR('T'),
5590   EL_STEEL_CHAR('X'),
5591   EL_STEEL_CHAR('T'),
5592 };
5593
5594 static int editor_el_steel_chars[] =
5595 {
5596   EL_STEEL_CHAR(' '),
5597   EL_STEEL_CHAR('!'),
5598   EL_STEEL_CHAR('"'),
5599   EL_STEEL_CHAR('#'),
5600
5601   EL_STEEL_CHAR('$'),
5602   EL_STEEL_CHAR('%'),
5603   EL_STEEL_CHAR('&'),
5604   EL_STEEL_CHAR('\''),
5605
5606   EL_STEEL_CHAR('('),
5607   EL_STEEL_CHAR(')'),
5608   EL_STEEL_CHAR('*'),
5609   EL_STEEL_CHAR('+'),
5610
5611   EL_STEEL_CHAR(','),
5612   EL_STEEL_CHAR('-'),
5613   EL_STEEL_CHAR('.'),
5614   EL_STEEL_CHAR('/'),
5615
5616   EL_STEEL_CHAR('0'),
5617   EL_STEEL_CHAR('1'),
5618   EL_STEEL_CHAR('2'),
5619   EL_STEEL_CHAR('3'),
5620
5621   EL_STEEL_CHAR('4'),
5622   EL_STEEL_CHAR('5'),
5623   EL_STEEL_CHAR('6'),
5624   EL_STEEL_CHAR('7'),
5625
5626   EL_STEEL_CHAR('8'),
5627   EL_STEEL_CHAR('9'),
5628   EL_STEEL_CHAR(':'),
5629   EL_STEEL_CHAR(';'),
5630
5631   EL_STEEL_CHAR('<'),
5632   EL_STEEL_CHAR('='),
5633   EL_STEEL_CHAR('>'),
5634   EL_STEEL_CHAR('?'),
5635
5636   EL_STEEL_CHAR('@'),
5637   EL_STEEL_CHAR('A'),
5638   EL_STEEL_CHAR('B'),
5639   EL_STEEL_CHAR('C'),
5640
5641   EL_STEEL_CHAR('D'),
5642   EL_STEEL_CHAR('E'),
5643   EL_STEEL_CHAR('F'),
5644   EL_STEEL_CHAR('G'),
5645
5646   EL_STEEL_CHAR('H'),
5647   EL_STEEL_CHAR('I'),
5648   EL_STEEL_CHAR('J'),
5649   EL_STEEL_CHAR('K'),
5650
5651   EL_STEEL_CHAR('L'),
5652   EL_STEEL_CHAR('M'),
5653   EL_STEEL_CHAR('N'),
5654   EL_STEEL_CHAR('O'),
5655
5656   EL_STEEL_CHAR('P'),
5657   EL_STEEL_CHAR('Q'),
5658   EL_STEEL_CHAR('R'),
5659   EL_STEEL_CHAR('S'),
5660
5661   EL_STEEL_CHAR('T'),
5662   EL_STEEL_CHAR('U'),
5663   EL_STEEL_CHAR('V'),
5664   EL_STEEL_CHAR('W'),
5665
5666   EL_STEEL_CHAR('X'),
5667   EL_STEEL_CHAR('Y'),
5668   EL_STEEL_CHAR('Z'),
5669   EL_STEEL_CHAR('['),
5670
5671   EL_STEEL_CHAR('\\'),
5672   EL_STEEL_CHAR(']'),
5673   EL_STEEL_CHAR('^'),
5674   EL_STEEL_CHAR('_'),
5675
5676   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
5677   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
5678   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
5679   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
5680
5681   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
5682   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
5683   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
5684   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
5685
5686   EL_STEEL_CHAR(FONT_ASCII_UP),
5687   EL_STEEL_CHAR(FONT_ASCII_DOWN),
5688   EL_STEEL_CHAR(' '),
5689   EL_STEEL_CHAR(' ')
5690 };
5691 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
5692 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
5693 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
5694 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
5695
5696 static int editor_hl_custom[] =
5697 {
5698   EL_INTERNAL_CASCADE_CE_ACTIVE,
5699   EL_CHAR('C'),
5700   EL_CHAR('E'),
5701   EL_EMPTY,
5702 };
5703
5704 static int editor_el_custom[] =
5705 {
5706   EL_CUSTOM_START + 0,
5707   EL_CUSTOM_START + 1,
5708   EL_CUSTOM_START + 2,
5709   EL_CUSTOM_START + 3,
5710
5711   EL_CUSTOM_START + 4,
5712   EL_CUSTOM_START + 5,
5713   EL_CUSTOM_START + 6,
5714   EL_CUSTOM_START + 7,
5715
5716   EL_CUSTOM_START + 8,
5717   EL_CUSTOM_START + 9,
5718   EL_CUSTOM_START + 10,
5719   EL_CUSTOM_START + 11,
5720
5721   EL_CUSTOM_START + 12,
5722   EL_CUSTOM_START + 13,
5723   EL_CUSTOM_START + 14,
5724   EL_CUSTOM_START + 15,
5725
5726   EL_CUSTOM_START + 16,
5727   EL_CUSTOM_START + 17,
5728   EL_CUSTOM_START + 18,
5729   EL_CUSTOM_START + 19,
5730
5731   EL_CUSTOM_START + 20,
5732   EL_CUSTOM_START + 21,
5733   EL_CUSTOM_START + 22,
5734   EL_CUSTOM_START + 23,
5735
5736   EL_CUSTOM_START + 24,
5737   EL_CUSTOM_START + 25,
5738   EL_CUSTOM_START + 26,
5739   EL_CUSTOM_START + 27,
5740
5741   EL_CUSTOM_START + 28,
5742   EL_CUSTOM_START + 29,
5743   EL_CUSTOM_START + 30,
5744   EL_CUSTOM_START + 31,
5745
5746   EL_CUSTOM_START + 32,
5747   EL_CUSTOM_START + 33,
5748   EL_CUSTOM_START + 34,
5749   EL_CUSTOM_START + 35,
5750
5751   EL_CUSTOM_START + 36,
5752   EL_CUSTOM_START + 37,
5753   EL_CUSTOM_START + 38,
5754   EL_CUSTOM_START + 39,
5755
5756   EL_CUSTOM_START + 40,
5757   EL_CUSTOM_START + 41,
5758   EL_CUSTOM_START + 42,
5759   EL_CUSTOM_START + 43,
5760
5761   EL_CUSTOM_START + 44,
5762   EL_CUSTOM_START + 45,
5763   EL_CUSTOM_START + 46,
5764   EL_CUSTOM_START + 47,
5765
5766   EL_CUSTOM_START + 48,
5767   EL_CUSTOM_START + 49,
5768   EL_CUSTOM_START + 50,
5769   EL_CUSTOM_START + 51,
5770
5771   EL_CUSTOM_START + 52,
5772   EL_CUSTOM_START + 53,
5773   EL_CUSTOM_START + 54,
5774   EL_CUSTOM_START + 55,
5775
5776   EL_CUSTOM_START + 56,
5777   EL_CUSTOM_START + 57,
5778   EL_CUSTOM_START + 58,
5779   EL_CUSTOM_START + 59,
5780
5781   EL_CUSTOM_START + 60,
5782   EL_CUSTOM_START + 61,
5783   EL_CUSTOM_START + 62,
5784   EL_CUSTOM_START + 63,
5785
5786   EL_CUSTOM_START + 64,
5787   EL_CUSTOM_START + 65,
5788   EL_CUSTOM_START + 66,
5789   EL_CUSTOM_START + 67,
5790
5791   EL_CUSTOM_START + 68,
5792   EL_CUSTOM_START + 69,
5793   EL_CUSTOM_START + 70,
5794   EL_CUSTOM_START + 71,
5795
5796   EL_CUSTOM_START + 72,
5797   EL_CUSTOM_START + 73,
5798   EL_CUSTOM_START + 74,
5799   EL_CUSTOM_START + 75,
5800
5801   EL_CUSTOM_START + 76,
5802   EL_CUSTOM_START + 77,
5803   EL_CUSTOM_START + 78,
5804   EL_CUSTOM_START + 79,
5805
5806   EL_CUSTOM_START + 80,
5807   EL_CUSTOM_START + 81,
5808   EL_CUSTOM_START + 82,
5809   EL_CUSTOM_START + 83,
5810
5811   EL_CUSTOM_START + 84,
5812   EL_CUSTOM_START + 85,
5813   EL_CUSTOM_START + 86,
5814   EL_CUSTOM_START + 87,
5815
5816   EL_CUSTOM_START + 88,
5817   EL_CUSTOM_START + 89,
5818   EL_CUSTOM_START + 90,
5819   EL_CUSTOM_START + 91,
5820
5821   EL_CUSTOM_START + 92,
5822   EL_CUSTOM_START + 93,
5823   EL_CUSTOM_START + 94,
5824   EL_CUSTOM_START + 95,
5825
5826   EL_CUSTOM_START + 96,
5827   EL_CUSTOM_START + 97,
5828   EL_CUSTOM_START + 98,
5829   EL_CUSTOM_START + 99,
5830
5831   EL_CUSTOM_START + 100,
5832   EL_CUSTOM_START + 101,
5833   EL_CUSTOM_START + 102,
5834   EL_CUSTOM_START + 103,
5835
5836   EL_CUSTOM_START + 104,
5837   EL_CUSTOM_START + 105,
5838   EL_CUSTOM_START + 106,
5839   EL_CUSTOM_START + 107,
5840
5841   EL_CUSTOM_START + 108,
5842   EL_CUSTOM_START + 109,
5843   EL_CUSTOM_START + 110,
5844   EL_CUSTOM_START + 111,
5845
5846   EL_CUSTOM_START + 112,
5847   EL_CUSTOM_START + 113,
5848   EL_CUSTOM_START + 114,
5849   EL_CUSTOM_START + 115,
5850
5851   EL_CUSTOM_START + 116,
5852   EL_CUSTOM_START + 117,
5853   EL_CUSTOM_START + 118,
5854   EL_CUSTOM_START + 119,
5855
5856   EL_CUSTOM_START + 120,
5857   EL_CUSTOM_START + 121,
5858   EL_CUSTOM_START + 122,
5859   EL_CUSTOM_START + 123,
5860
5861   EL_CUSTOM_START + 124,
5862   EL_CUSTOM_START + 125,
5863   EL_CUSTOM_START + 126,
5864   EL_CUSTOM_START + 127,
5865
5866   EL_CUSTOM_START + 128,
5867   EL_CUSTOM_START + 129,
5868   EL_CUSTOM_START + 130,
5869   EL_CUSTOM_START + 131,
5870
5871   EL_CUSTOM_START + 132,
5872   EL_CUSTOM_START + 133,
5873   EL_CUSTOM_START + 134,
5874   EL_CUSTOM_START + 135,
5875
5876   EL_CUSTOM_START + 136,
5877   EL_CUSTOM_START + 137,
5878   EL_CUSTOM_START + 138,
5879   EL_CUSTOM_START + 139,
5880
5881   EL_CUSTOM_START + 140,
5882   EL_CUSTOM_START + 141,
5883   EL_CUSTOM_START + 142,
5884   EL_CUSTOM_START + 143,
5885
5886   EL_CUSTOM_START + 144,
5887   EL_CUSTOM_START + 145,
5888   EL_CUSTOM_START + 146,
5889   EL_CUSTOM_START + 147,
5890
5891   EL_CUSTOM_START + 148,
5892   EL_CUSTOM_START + 149,
5893   EL_CUSTOM_START + 150,
5894   EL_CUSTOM_START + 151,
5895
5896   EL_CUSTOM_START + 152,
5897   EL_CUSTOM_START + 153,
5898   EL_CUSTOM_START + 154,
5899   EL_CUSTOM_START + 155,
5900
5901   EL_CUSTOM_START + 156,
5902   EL_CUSTOM_START + 157,
5903   EL_CUSTOM_START + 158,
5904   EL_CUSTOM_START + 159,
5905
5906   EL_CUSTOM_START + 160,
5907   EL_CUSTOM_START + 161,
5908   EL_CUSTOM_START + 162,
5909   EL_CUSTOM_START + 163,
5910
5911   EL_CUSTOM_START + 164,
5912   EL_CUSTOM_START + 165,
5913   EL_CUSTOM_START + 166,
5914   EL_CUSTOM_START + 167,
5915
5916   EL_CUSTOM_START + 168,
5917   EL_CUSTOM_START + 169,
5918   EL_CUSTOM_START + 170,
5919   EL_CUSTOM_START + 171,
5920
5921   EL_CUSTOM_START + 172,
5922   EL_CUSTOM_START + 173,
5923   EL_CUSTOM_START + 174,
5924   EL_CUSTOM_START + 175,
5925
5926   EL_CUSTOM_START + 176,
5927   EL_CUSTOM_START + 177,
5928   EL_CUSTOM_START + 178,
5929   EL_CUSTOM_START + 179,
5930
5931   EL_CUSTOM_START + 180,
5932   EL_CUSTOM_START + 181,
5933   EL_CUSTOM_START + 182,
5934   EL_CUSTOM_START + 183,
5935
5936   EL_CUSTOM_START + 184,
5937   EL_CUSTOM_START + 185,
5938   EL_CUSTOM_START + 186,
5939   EL_CUSTOM_START + 187,
5940
5941   EL_CUSTOM_START + 188,
5942   EL_CUSTOM_START + 189,
5943   EL_CUSTOM_START + 190,
5944   EL_CUSTOM_START + 191,
5945
5946   EL_CUSTOM_START + 192,
5947   EL_CUSTOM_START + 193,
5948   EL_CUSTOM_START + 194,
5949   EL_CUSTOM_START + 195,
5950
5951   EL_CUSTOM_START + 196,
5952   EL_CUSTOM_START + 197,
5953   EL_CUSTOM_START + 198,
5954   EL_CUSTOM_START + 199,
5955
5956   EL_CUSTOM_START + 200,
5957   EL_CUSTOM_START + 201,
5958   EL_CUSTOM_START + 202,
5959   EL_CUSTOM_START + 203,
5960
5961   EL_CUSTOM_START + 204,
5962   EL_CUSTOM_START + 205,
5963   EL_CUSTOM_START + 206,
5964   EL_CUSTOM_START + 207,
5965
5966   EL_CUSTOM_START + 208,
5967   EL_CUSTOM_START + 209,
5968   EL_CUSTOM_START + 210,
5969   EL_CUSTOM_START + 211,
5970
5971   EL_CUSTOM_START + 212,
5972   EL_CUSTOM_START + 213,
5973   EL_CUSTOM_START + 214,
5974   EL_CUSTOM_START + 215,
5975
5976   EL_CUSTOM_START + 216,
5977   EL_CUSTOM_START + 217,
5978   EL_CUSTOM_START + 218,
5979   EL_CUSTOM_START + 219,
5980
5981   EL_CUSTOM_START + 220,
5982   EL_CUSTOM_START + 221,
5983   EL_CUSTOM_START + 222,
5984   EL_CUSTOM_START + 223,
5985
5986   EL_CUSTOM_START + 224,
5987   EL_CUSTOM_START + 225,
5988   EL_CUSTOM_START + 226,
5989   EL_CUSTOM_START + 227,
5990
5991   EL_CUSTOM_START + 228,
5992   EL_CUSTOM_START + 229,
5993   EL_CUSTOM_START + 230,
5994   EL_CUSTOM_START + 231,
5995
5996   EL_CUSTOM_START + 232,
5997   EL_CUSTOM_START + 233,
5998   EL_CUSTOM_START + 234,
5999   EL_CUSTOM_START + 235,
6000
6001   EL_CUSTOM_START + 236,
6002   EL_CUSTOM_START + 237,
6003   EL_CUSTOM_START + 238,
6004   EL_CUSTOM_START + 239,
6005
6006   EL_CUSTOM_START + 240,
6007   EL_CUSTOM_START + 241,
6008   EL_CUSTOM_START + 242,
6009   EL_CUSTOM_START + 243,
6010
6011   EL_CUSTOM_START + 244,
6012   EL_CUSTOM_START + 245,
6013   EL_CUSTOM_START + 246,
6014   EL_CUSTOM_START + 247,
6015
6016   EL_CUSTOM_START + 248,
6017   EL_CUSTOM_START + 249,
6018   EL_CUSTOM_START + 250,
6019   EL_CUSTOM_START + 251,
6020
6021   EL_CUSTOM_START + 252,
6022   EL_CUSTOM_START + 253,
6023   EL_CUSTOM_START + 254,
6024   EL_CUSTOM_START + 255
6025 };
6026 static int *editor_hl_custom_ptr = editor_hl_custom;
6027 static int *editor_el_custom_ptr = editor_el_custom;
6028 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
6029 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
6030
6031 static int editor_hl_group[] =
6032 {
6033   EL_INTERNAL_CASCADE_GE_ACTIVE,
6034   EL_CHAR('G'),
6035   EL_CHAR('E'),
6036   EL_EMPTY,
6037 };
6038
6039 static int editor_el_group[] =
6040 {
6041   EL_GROUP_START + 0,
6042   EL_GROUP_START + 1,
6043   EL_GROUP_START + 2,
6044   EL_GROUP_START + 3,
6045
6046   EL_GROUP_START + 4,
6047   EL_GROUP_START + 5,
6048   EL_GROUP_START + 6,
6049   EL_GROUP_START + 7,
6050
6051   EL_GROUP_START + 8,
6052   EL_GROUP_START + 9,
6053   EL_GROUP_START + 10,
6054   EL_GROUP_START + 11,
6055
6056   EL_GROUP_START + 12,
6057   EL_GROUP_START + 13,
6058   EL_GROUP_START + 14,
6059   EL_GROUP_START + 15,
6060
6061   EL_GROUP_START + 16,
6062   EL_GROUP_START + 17,
6063   EL_GROUP_START + 18,
6064   EL_GROUP_START + 19,
6065
6066   EL_GROUP_START + 20,
6067   EL_GROUP_START + 21,
6068   EL_GROUP_START + 22,
6069   EL_GROUP_START + 23,
6070
6071   EL_GROUP_START + 24,
6072   EL_GROUP_START + 25,
6073   EL_GROUP_START + 26,
6074   EL_GROUP_START + 27,
6075
6076   EL_GROUP_START + 28,
6077   EL_GROUP_START + 29,
6078   EL_GROUP_START + 30,
6079   EL_GROUP_START + 31
6080 };
6081 static int *editor_hl_group_ptr = editor_hl_group;
6082 static int *editor_el_group_ptr = editor_el_group;
6083 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
6084 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
6085
6086 static int editor_hl_empty_space[] =
6087 {
6088   EL_INTERNAL_CASCADE_ES_ACTIVE,
6089   EL_CHAR('E'),
6090   EL_CHAR('S'),
6091   EL_EMPTY,
6092 };
6093
6094 static int editor_el_empty_space[] =
6095 {
6096   EL_EMPTY_SPACE_1,
6097   EL_EMPTY_SPACE_2,
6098   EL_EMPTY_SPACE_3,
6099   EL_EMPTY_SPACE_4,
6100
6101   EL_EMPTY_SPACE_5,
6102   EL_EMPTY_SPACE_6,
6103   EL_EMPTY_SPACE_7,
6104   EL_EMPTY_SPACE_8,
6105
6106   EL_EMPTY_SPACE_9,
6107   EL_EMPTY_SPACE_10,
6108   EL_EMPTY_SPACE_11,
6109   EL_EMPTY_SPACE_12,
6110
6111   EL_EMPTY_SPACE_13,
6112   EL_EMPTY_SPACE_14,
6113   EL_EMPTY_SPACE_15,
6114   EL_EMPTY_SPACE_16
6115 };
6116 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
6117 static int *editor_el_empty_space_ptr = editor_el_empty_space;
6118 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
6119 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
6120
6121 static int editor_hl_reference[] =
6122 {
6123   EL_INTERNAL_CASCADE_REF_ACTIVE,
6124   EL_CHAR('R'),
6125   EL_CHAR('E'),
6126   EL_CHAR('F')
6127 };
6128
6129 static int editor_el_reference[] =
6130 {
6131   EL_TRIGGER_PLAYER,
6132   EL_TRIGGER_ELEMENT,
6133   EL_TRIGGER_CE_VALUE,
6134   EL_TRIGGER_CE_SCORE,
6135
6136   EL_SELF,
6137   EL_ANY_ELEMENT,
6138   EL_CURRENT_CE_VALUE,
6139   EL_CURRENT_CE_SCORE,
6140
6141   EL_PREV_CE_8,
6142   EL_PREV_CE_7,
6143   EL_PREV_CE_6,
6144   EL_PREV_CE_5,
6145
6146   EL_PREV_CE_4,
6147   EL_PREV_CE_3,
6148   EL_PREV_CE_2,
6149   EL_PREV_CE_1,
6150
6151   EL_NEXT_CE_1,
6152   EL_NEXT_CE_2,
6153   EL_NEXT_CE_3,
6154   EL_NEXT_CE_4,
6155
6156   EL_NEXT_CE_5,
6157   EL_NEXT_CE_6,
6158   EL_NEXT_CE_7,
6159   EL_NEXT_CE_8,
6160 };
6161 static int *editor_hl_reference_ptr = editor_hl_reference;
6162 static int *editor_el_reference_ptr = editor_el_reference;
6163 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
6164 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
6165
6166 static int editor_hl_user_defined[] =
6167 {
6168   EL_INTERNAL_CASCADE_USER_ACTIVE,
6169   EL_CHAR('M'),
6170   EL_CHAR('Y'),
6171   EL_EMPTY,
6172 };
6173
6174 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
6175 static int *editor_el_user_defined_ptr = NULL;
6176 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
6177 static int num_editor_el_user_defined = 0;
6178
6179 static int editor_hl_dynamic[] =
6180 {
6181   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
6182   EL_CHAR('U'),
6183   EL_CHAR('S'),
6184   EL_CHAR('E'),
6185 };
6186
6187 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
6188 static int *editor_el_dynamic_ptr = NULL;
6189 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
6190 static int num_editor_el_dynamic = 0;
6191
6192 static int editor_hl_empty[] = { EL_EMPTY };
6193 static int *editor_el_empty = NULL;     // dynamically allocated
6194
6195 static int *editor_hl_empty_ptr = editor_hl_empty;
6196 static int *editor_el_empty_ptr = NULL;
6197 static int num_editor_hl_empty = 0;
6198 static int num_editor_el_empty = 0;     // dynamically determined, if needed
6199
6200 static boolean use_el_empty = FALSE;
6201
6202 static int *editor_elements = NULL;     // dynamically allocated
6203 static int num_editor_elements = 0;     // dynamically determined
6204
6205 static boolean setup_editor_cascade_never = FALSE;
6206
6207 static boolean setup_editor_el_players                  = TRUE;
6208 static boolean setup_editor_el_boulderdash              = TRUE;
6209 static boolean setup_editor_el_boulderdash_native       = TRUE;
6210 static boolean setup_editor_el_emerald_mine             = TRUE;
6211 static boolean setup_editor_el_emerald_mine_club        = TRUE;
6212 static boolean setup_editor_el_more                     = TRUE;
6213 static boolean setup_editor_el_sokoban                  = TRUE;
6214 static boolean setup_editor_el_supaplex                 = TRUE;
6215 static boolean setup_editor_el_diamond_caves            = TRUE;
6216 static boolean setup_editor_el_dx_boulderdash           = TRUE;
6217 static boolean setup_editor_el_mirror_magic             = TRUE;
6218 static boolean setup_editor_el_deflektor                = TRUE;
6219 static boolean setup_editor_el_chars                    = TRUE;
6220 static boolean setup_editor_el_steel_chars              = TRUE;
6221 static boolean setup_editor_el_custom                   = TRUE;
6222 static boolean setup_editor_el_user_defined             = TRUE;
6223 static boolean setup_editor_el_dynamic                  = TRUE;
6224
6225 static int editor_hl_unused[] = { EL_EMPTY };
6226 static int *editor_hl_unused_ptr = editor_hl_unused;
6227 static int num_editor_hl_unused = 0;
6228
6229 static struct
6230 {
6231   boolean *setup_value;
6232   boolean *setup_cascade_value;
6233
6234   int **headline_list;
6235   int *headline_list_size;
6236
6237   int **element_list;
6238   int *element_list_size;
6239
6240   boolean last_setup_value;
6241 }
6242 editor_elements_info[] =
6243 {
6244   {
6245     &setup_editor_el_players,
6246     &setup_editor_cascade_never,
6247     &editor_hl_unused_ptr,              &num_editor_hl_unused,
6248     &editor_el_players_ptr,             &num_editor_el_players
6249   },
6250   {
6251     &setup_editor_el_boulderdash,
6252     &setup.editor_cascade.el_bd,
6253     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
6254     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
6255   },
6256   {
6257     &setup_editor_el_boulderdash_native,
6258     &setup.editor_cascade.el_bd_native,
6259     &editor_hl_boulderdash_native_ptr,  &num_editor_hl_boulderdash_native,
6260     &editor_el_boulderdash_native_ptr,  &num_editor_el_boulderdash_native
6261   },
6262   {
6263     &setup_editor_el_emerald_mine,
6264     &setup.editor_cascade.el_em,
6265     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
6266     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
6267   },
6268   {
6269     &setup_editor_el_emerald_mine_club,
6270     &setup.editor_cascade.el_emc,
6271     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
6272     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
6273   },
6274   {
6275     &setup_editor_el_more,
6276     &setup.editor_cascade.el_rnd,
6277     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
6278     &editor_el_rnd_ptr,                 &num_editor_el_rnd
6279   },
6280   {
6281     &setup_editor_el_sokoban,
6282     &setup.editor_cascade.el_sb,
6283     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
6284     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
6285   },
6286   {
6287     &setup_editor_el_supaplex,
6288     &setup.editor_cascade.el_sp,
6289     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
6290     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
6291   },
6292   {
6293     &setup_editor_el_diamond_caves,
6294     &setup.editor_cascade.el_dc,
6295     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
6296     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
6297   },
6298   {
6299     &setup_editor_el_dx_boulderdash,
6300     &setup.editor_cascade.el_dx,
6301     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
6302     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
6303   },
6304   {
6305     &setup_editor_el_mirror_magic,
6306     &setup.editor_cascade.el_mm,
6307     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
6308     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
6309   },
6310   {
6311     &setup_editor_el_deflektor,
6312     &setup.editor_cascade.el_df,
6313     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
6314     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
6315   },
6316   {
6317     &setup_editor_el_chars,
6318     &setup.editor_cascade.el_chars,
6319     &editor_hl_chars_ptr,               &num_editor_hl_chars,
6320     &editor_el_chars_ptr,               &num_editor_el_chars
6321   },
6322   {
6323     &setup_editor_el_steel_chars,
6324     &setup.editor_cascade.el_steel_chars,
6325     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
6326     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
6327   },
6328   {
6329     &setup_editor_el_custom,
6330     &setup.editor_cascade.el_ce,
6331     &editor_hl_custom_ptr,              &num_editor_hl_custom,
6332     &editor_el_custom_ptr,              &num_editor_el_custom
6333   },
6334   {
6335     &setup_editor_el_custom,
6336     &setup.editor_cascade.el_ge,
6337     &editor_hl_group_ptr,               &num_editor_hl_group,
6338     &editor_el_group_ptr,               &num_editor_el_group
6339   },
6340   {
6341     &setup_editor_el_custom,
6342     &setup.editor_cascade.el_es,
6343     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
6344     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
6345   },
6346   {
6347     &setup_editor_el_custom,
6348     &setup.editor_cascade.el_ref,
6349     &editor_hl_reference_ptr,           &num_editor_hl_reference,
6350     &editor_el_reference_ptr,           &num_editor_el_reference
6351   },
6352   {
6353     &setup_editor_el_user_defined,
6354     &setup.editor_cascade.el_user,
6355     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
6356     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
6357   },
6358   {
6359     &setup_editor_el_dynamic,
6360     &setup.editor_cascade.el_dynamic,
6361     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
6362     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
6363   },
6364   {
6365     &use_el_empty,
6366     &use_el_empty,
6367     &editor_hl_empty_ptr,               &num_editor_hl_empty,
6368     &editor_el_empty_ptr,               &num_editor_el_empty,
6369   },
6370   {
6371     NULL,
6372     NULL,
6373     NULL,                               NULL,
6374     NULL,                               NULL
6375   }
6376 };
6377
6378 static struct XY xy_directions[] =
6379 {
6380   { -1,  0 },
6381   { +1,  0 },
6382   {  0, -1 },
6383   {  0, +1 }
6384 };
6385
6386
6387 // ----------------------------------------------------------------------------
6388 // functions
6389 // ----------------------------------------------------------------------------
6390
6391 static int getMaxInfoTextLength(void)
6392 {
6393   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
6394 }
6395
6396 static int getTextWidthForGadget(char *text)
6397 {
6398   if (text == NULL)
6399     return 0;
6400
6401   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
6402 }
6403
6404 static int getTextWidthForDrawingArea(char *text)
6405 {
6406   if (text == NULL)
6407     return 0;
6408
6409   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_BORDER_SIZE);
6410 }
6411
6412 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
6413 {
6414   return (gi->x + gi->width + getTextWidthForGadget(text));
6415 }
6416
6417 static char *getElementInfoText(int element)
6418 {
6419   char *info_text = NULL;
6420
6421   if (element < MAX_NUM_ELEMENTS)
6422   {
6423     if (strlen(element_info[element].description) > 0)
6424       info_text = element_info[element].description;
6425     else if (element_info[element].custom_description != NULL)
6426       info_text = element_info[element].custom_description;
6427     else if (element_info[element].editor_description != NULL)
6428       info_text = element_info[element].editor_description;
6429   }
6430
6431   if (info_text == NULL)
6432     info_text = INFOTEXT_UNKNOWN_ELEMENT;
6433
6434   return info_text;
6435 }
6436
6437 static char *getElementDescriptionFilenameExt(char *basename)
6438 {
6439   char *elements_subdir = ELEMENTS_DIRECTORY;
6440   static char *elements_subdir2 = NULL;
6441   static char *filename = NULL;
6442
6443   if (elements_subdir2 == NULL)
6444     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
6445
6446   checked_free(filename);
6447
6448   // 1st try: look for element description in current level set directory
6449   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
6450   if (fileExists(filename))
6451     return filename;
6452
6453   free(filename);
6454
6455   // 2nd try: look for element description in the game's base directory
6456   filename = getPath3(options.docs_directory, elements_subdir, basename);
6457   if (fileExists(filename))
6458     return filename;
6459
6460   return NULL;
6461 }
6462
6463 static char *getElementDescriptionFilename(int element)
6464 {
6465   char basename[MAX_FILENAME_LEN];
6466   char *filename;
6467
6468   // 1st try: look for element description file for exactly this element
6469   sprintf(basename, "%s.txt", element_info[element].token_name);
6470   filename = getElementDescriptionFilenameExt(basename);
6471   if (filename != NULL)
6472     return filename;
6473
6474   // 2nd try: look for element description file for this element's class
6475   sprintf(basename, "%s.txt", element_info[element].class_name);
6476   filename = getElementDescriptionFilenameExt(basename);
6477   if (filename != NULL)
6478     return filename;
6479
6480   // 3rd try: look for generic fallback text file for any element
6481   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
6482   if (filename != NULL)
6483     return filename;
6484
6485   return NULL;
6486 }
6487
6488 static boolean suppressBorderElement(void)
6489 {
6490   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
6491           lev_fieldx <= MAX_ED_FIELDX &&
6492           lev_fieldy <= MAX_ED_FIELDY);
6493 }
6494
6495 static void InitDynamicEditorElementList(int **elements, int *num_elements)
6496 {
6497   boolean element_found[NUM_FILE_ELEMENTS];
6498   int i, x, y;
6499
6500   // initialize list of used elements to "not used"
6501   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6502     element_found[i] = FALSE;
6503
6504   // find all elements used in current level
6505   for (y = 0; y < lev_fieldy; y++)
6506   {
6507     for (x = 0; x < lev_fieldx; x++)
6508     {
6509       if (Tile[x][y] >= NUM_FILE_ELEMENTS)      // should never happen
6510         continue;
6511
6512       if (IS_MM_WALL(Tile[x][y]))
6513         element_found[map_mm_wall_element(Tile[x][y])] = TRUE;
6514       else
6515         element_found[Tile[x][y]] = TRUE;
6516     }
6517   }
6518
6519   *num_elements = 0;
6520
6521   // count number of elements used in current level
6522   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6523     if (element_found[i])
6524       (*num_elements)++;
6525
6526   // add space for up to 3 more elements for padding that may be needed
6527   *num_elements += 3;
6528
6529   // free memory for old list of elements, if needed
6530   checked_free(*elements);
6531
6532   // allocate memory for new list of elements
6533   *elements = checked_malloc(*num_elements * sizeof(int));
6534
6535   *num_elements = 0;
6536
6537   // add all elements used in current level (non-custom/group/empty elements)
6538   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6539     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) ||
6540                               IS_GROUP_ELEMENT(i) ||
6541                               IS_EMPTY_ELEMENT(i)))
6542       (*elements)[(*num_elements)++] = i;
6543
6544   // add all elements used in current level (custom/group/empty elements)
6545   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6546     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) ||
6547                              IS_GROUP_ELEMENT(i) ||
6548                              IS_EMPTY_ELEMENT(i)))
6549       (*elements)[(*num_elements)++] = i;
6550
6551   while (*num_elements % 4)     // pad with empty elements, if needed
6552     (*elements)[(*num_elements)++] = EL_EMPTY;
6553 }
6554
6555 static void ReinitializeElementList_EnableSections(void)
6556 {
6557   // default: enable all element sections
6558
6559   setup_editor_el_players               = TRUE;
6560   setup_editor_el_boulderdash           = TRUE;
6561   setup_editor_el_boulderdash_native    = TRUE;
6562   setup_editor_el_emerald_mine          = TRUE;
6563   setup_editor_el_emerald_mine_club     = TRUE;
6564   setup_editor_el_more                  = TRUE;
6565   setup_editor_el_sokoban               = TRUE;
6566   setup_editor_el_supaplex              = TRUE;
6567   setup_editor_el_diamond_caves         = TRUE;
6568   setup_editor_el_dx_boulderdash        = TRUE;
6569   setup_editor_el_mirror_magic          = TRUE;
6570   setup_editor_el_deflektor             = TRUE;
6571   setup_editor_el_chars                 = TRUE;
6572   setup_editor_el_steel_chars           = TRUE;
6573
6574   setup_editor_el_custom                = TRUE;
6575   setup_editor_el_user_defined          = TRUE;
6576   setup_editor_el_dynamic               = TRUE;
6577
6578   // now disable all element sections not to be displayed
6579
6580   if (!setup.editor.el_classic)
6581   {
6582     setup_editor_el_players             = FALSE;
6583     setup_editor_el_boulderdash         = FALSE;
6584     setup_editor_el_boulderdash_native  = FALSE;
6585     setup_editor_el_emerald_mine        = FALSE;
6586     setup_editor_el_emerald_mine_club   = FALSE;
6587     setup_editor_el_more                = FALSE;
6588     setup_editor_el_sokoban             = FALSE;
6589     setup_editor_el_supaplex            = FALSE;
6590     setup_editor_el_diamond_caves       = FALSE;
6591     setup_editor_el_dx_boulderdash      = FALSE;
6592     setup_editor_el_mirror_magic        = FALSE;
6593     setup_editor_el_deflektor           = FALSE;
6594     setup_editor_el_chars               = FALSE;
6595     setup_editor_el_steel_chars         = FALSE;
6596   }
6597
6598   if (!setup.editor.el_custom)
6599   {
6600     setup_editor_el_custom              = FALSE;
6601   }
6602
6603   if (!setup.editor.el_user_defined)
6604   {
6605     setup_editor_el_user_defined        = FALSE;
6606   }
6607
6608   if (!setup.editor.el_dynamic)
6609   {
6610     setup_editor_el_dynamic             = FALSE;
6611   }
6612
6613   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
6614   {
6615     setup_editor_el_boulderdash_native  = FALSE;
6616     setup_editor_el_mirror_magic        = FALSE;
6617     setup_editor_el_deflektor           = FALSE;
6618   }
6619   else if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
6620   {
6621     setup_editor_el_players             = FALSE;
6622     setup_editor_el_boulderdash         = FALSE;
6623     setup_editor_el_emerald_mine        = FALSE;
6624     setup_editor_el_emerald_mine_club   = FALSE;
6625     setup_editor_el_more                = FALSE;
6626     setup_editor_el_sokoban             = FALSE;
6627     setup_editor_el_supaplex            = FALSE;
6628     setup_editor_el_diamond_caves       = FALSE;
6629     setup_editor_el_dx_boulderdash      = FALSE;
6630     setup_editor_el_mirror_magic        = FALSE;
6631     setup_editor_el_deflektor           = FALSE;
6632     setup_editor_el_chars               = FALSE;
6633     setup_editor_el_steel_chars         = FALSE;
6634
6635     setup_editor_el_custom              = FALSE;
6636   }
6637   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
6638   {
6639     setup_editor_el_boulderdash         = FALSE;
6640     setup_editor_el_boulderdash_native  = FALSE;
6641     setup_editor_el_more                = FALSE;
6642     setup_editor_el_sokoban             = FALSE;
6643     setup_editor_el_supaplex            = FALSE;
6644     setup_editor_el_diamond_caves       = FALSE;
6645     setup_editor_el_dx_boulderdash      = FALSE;
6646     setup_editor_el_mirror_magic        = FALSE;
6647     setup_editor_el_deflektor           = FALSE;
6648     setup_editor_el_steel_chars         = FALSE;
6649
6650     setup_editor_el_custom              = FALSE;
6651   }
6652   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
6653   {
6654     setup_editor_el_players             = FALSE;
6655     setup_editor_el_boulderdash         = FALSE;
6656     setup_editor_el_boulderdash_native  = FALSE;
6657     setup_editor_el_emerald_mine        = FALSE;
6658     setup_editor_el_emerald_mine_club   = FALSE;
6659     setup_editor_el_more                = FALSE;
6660     setup_editor_el_sokoban             = FALSE;
6661     setup_editor_el_diamond_caves       = FALSE;
6662     setup_editor_el_dx_boulderdash      = FALSE;
6663     setup_editor_el_mirror_magic        = FALSE;
6664     setup_editor_el_deflektor           = FALSE;
6665     setup_editor_el_chars               = FALSE;
6666     setup_editor_el_steel_chars         = FALSE;
6667
6668     setup_editor_el_custom              = FALSE;
6669   }
6670   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
6671   {
6672     setup_editor_el_players             = FALSE;
6673     setup_editor_el_boulderdash         = FALSE;
6674     setup_editor_el_boulderdash_native  = FALSE;
6675     setup_editor_el_emerald_mine        = FALSE;
6676     setup_editor_el_emerald_mine_club   = FALSE;
6677     setup_editor_el_more                = FALSE;
6678     setup_editor_el_sokoban             = FALSE;
6679     setup_editor_el_supaplex            = FALSE;
6680     setup_editor_el_diamond_caves       = FALSE;
6681     setup_editor_el_dx_boulderdash      = FALSE;
6682     setup_editor_el_steel_chars         = FALSE;
6683
6684     setup_editor_el_custom              = FALSE;
6685   }
6686 }
6687
6688 static void ReinitializeElementList(void)
6689 {
6690   static boolean initialization_needed = TRUE;
6691   int pos = 0;
6692   int i, j;
6693
6694   ReinitializeElementList_EnableSections();
6695
6696   if (initialization_needed)
6697   {
6698     LoadSetup_EditorCascade();          // load last editor cascade state
6699
6700     // initialize editor cascade element from saved cascade state
6701     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6702     {
6703       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
6704       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
6705
6706       if (IS_EDITOR_CASCADE(*cascade_element))
6707         *cascade_element =
6708           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
6709            EL_CASCADE_INACTIVE(*cascade_element));
6710     }
6711
6712     initialization_needed = FALSE;
6713   }
6714
6715   checked_free(editor_elements);
6716
6717   // reload optional user defined element list for each invocation of editor
6718   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
6719                                    &num_editor_el_user_defined);
6720
6721   // initialize dynamic level element list for each invocation of editor
6722   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
6723                                &num_editor_el_dynamic);
6724
6725   // initialize list of empty elements (used for padding, if needed)
6726   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6727     editor_el_empty[i] = EL_EMPTY;
6728
6729   // do some sanity checks for each element from element list
6730   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6731   {
6732     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6733     {
6734       int element = (*editor_elements_info[i].element_list)[j];
6735
6736       if (element >= NUM_FILE_ELEMENTS)
6737         Warn("editor element %d is runtime element", element);
6738
6739       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
6740         Warn("no element description text for element %d", element);
6741     }
6742   }
6743
6744   num_editor_elements = 0;
6745   use_el_empty = FALSE;
6746
6747   // determine size of element list
6748   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6749   {
6750     if (*editor_elements_info[i].setup_value)
6751     {
6752       boolean found_inactive_cascade = FALSE;
6753
6754       if (setup.editor.el_headlines)
6755       {
6756         // required for correct padding of palette headline buttons
6757         if (*editor_elements_info[i].headline_list_size > 0)
6758           num_editor_elements += ED_ELEMENTLIST_COLS;
6759
6760         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6761         {
6762           int element = (*editor_elements_info[i].headline_list)[j];
6763
6764           if (IS_EDITOR_CASCADE_INACTIVE(element))
6765             found_inactive_cascade = TRUE;
6766         }
6767       }
6768
6769       if (found_inactive_cascade)
6770         continue;
6771
6772       // required for correct padding of palette element buttons
6773       int element_list_size = *editor_elements_info[i].element_list_size;
6774       int element_rows =
6775         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6776       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6777
6778       num_editor_elements += element_buttons;
6779     }
6780   }
6781
6782   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
6783   {
6784     // offer at least as many elements as element buttons exist
6785     use_el_empty = TRUE;
6786     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
6787
6788     num_editor_elements += num_editor_el_empty;
6789   }
6790   else
6791   {
6792     num_editor_el_empty = 0;
6793   }
6794
6795   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
6796
6797   // fill element list
6798   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6799   {
6800     boolean found_inactive_cascade = FALSE;
6801
6802     if (*editor_elements_info[i].setup_value)
6803     {
6804       if (setup.editor.el_headlines)
6805       {
6806         // required for correct padding of palette headline buttons
6807         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
6808                              ED_ELEMENTLIST_COLS : 0);
6809
6810         for (j = 0; j < headline_size; j++)
6811         {
6812           // use empty elements for padding of palette headline buttons
6813           int element = (j < *editor_elements_info[i].headline_list_size ?
6814                          (*editor_elements_info[i].headline_list)[j] :
6815                          editor_el_empty[0]);
6816
6817           editor_elements[pos++] = element;
6818
6819           if (IS_EDITOR_CASCADE_INACTIVE(element))
6820             found_inactive_cascade = TRUE;
6821         }
6822       }
6823
6824       if (found_inactive_cascade)
6825         continue;
6826
6827       // required for correct padding of palette element buttons
6828       int element_list_size = *editor_elements_info[i].element_list_size;
6829       int element_rows =
6830         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6831       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6832
6833       // copy all elements from element list
6834       for (j = 0; j < element_list_size; j++)
6835         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
6836
6837       // use empty elements for padding of palette element buttons
6838       for (j = 0; j < element_buttons - element_list_size; j++)
6839         editor_elements[pos++] = editor_el_empty[0];
6840     }
6841   }
6842
6843   // (this function is also called before editor gadgets are initialized!)
6844   AdjustElementListScrollbar();
6845 }
6846
6847 void PrintEditorElementList(void)
6848 {
6849   boolean *stop = &setup_editor_el_user_defined;
6850   int i, j;
6851
6852   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
6853   {
6854     int cascade_element = (*editor_elements_info[i].headline_list)[0];
6855
6856     if (IS_EDITOR_CASCADE(cascade_element))
6857     {
6858       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
6859       char *headline = element_info[cascade_element_show].editor_description;
6860
6861       PrintLineWithPrefix("# ", "-", 77);
6862       Print("# %s\n", headline);
6863       PrintLineWithPrefix("# ", "-", 77);
6864     }
6865
6866     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6867     {
6868       int element = (*editor_elements_info[i].headline_list)[j];
6869
6870       if (IS_EDITOR_CASCADE(element))
6871         element = EL_CHAR_MINUS;
6872
6873       Print("# %s\n", element_info[element].token_name);
6874     }
6875
6876     if (j > 0)
6877       Print("#\n");
6878
6879     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6880     {
6881       int element = (*editor_elements_info[i].element_list)[j];
6882
6883       Print("# %s\n", element_info[element].token_name);
6884     }
6885
6886     if (j > 0)
6887       Print("#\n");
6888   }
6889 }
6890
6891 static void ReinitializeElementListButtons(void)
6892 {
6893   static boolean last_setup_value_headlines = FALSE;
6894   static boolean initialization_needed = TRUE;
6895   int i;
6896
6897   if (!initialization_needed)   // check if editor element setup has changed
6898   {
6899     if (last_setup_value_headlines != setup.editor.el_headlines)
6900       initialization_needed = TRUE;
6901
6902     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6903       if (editor_elements_info[i].last_setup_value !=
6904           *editor_elements_info[i].setup_value)
6905         initialization_needed = TRUE;
6906   }
6907
6908   if (!initialization_needed)
6909     return;
6910
6911   FreeLevelEditorGadgets();
6912   CreateLevelEditorGadgets();
6913
6914   // store current setup values for next invocation of this function
6915   last_setup_value_headlines = setup.editor.el_headlines;
6916   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6917     editor_elements_info[i].last_setup_value =
6918       *editor_elements_info[i].setup_value;
6919
6920   initialization_needed = FALSE;
6921 }
6922
6923 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
6924                               boolean input)
6925 {
6926   int border_graphic =
6927     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
6928   struct GraphicInfo *g = &graphic_info[border_graphic];
6929   Bitmap *src_bitmap = g->bitmap;
6930   int src_x = g->src_x;
6931   int src_y = g->src_y;
6932   int border_size = g->border_size;
6933   int border_xpos = g->width  - border_size;
6934   int border_ypos = g->height - border_size;
6935   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6936   int i;
6937
6938   BlitBitmap(src_bitmap, drawto, src_x, src_y,
6939              border_size, border_size,
6940              dest_x - border_size, dest_y - border_size);
6941   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
6942              border_size, border_size,
6943              dest_x + width, dest_y - border_size);
6944   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
6945              border_size, border_size,
6946              dest_x - border_size, dest_y + height);
6947   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
6948              border_size, border_size,
6949              dest_x + width, dest_y + height);
6950
6951   for (i = 0; i < width / tilesize; i++)
6952   {
6953     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
6954                tilesize, border_size,
6955                dest_x + i * tilesize, dest_y - border_size);
6956     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
6957                tilesize, border_size,
6958                dest_x + i * tilesize, dest_y + height);
6959   }
6960
6961   for (i = 0; i < height / tilesize; i++)
6962   {
6963     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
6964                border_size, tilesize,
6965                dest_x - border_size, dest_y + i * tilesize);
6966     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
6967                border_size, tilesize,
6968                dest_x + width, dest_y + i * tilesize);
6969   }
6970
6971   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
6972 }
6973
6974 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
6975 {
6976   int xsize_tile = MAX(ed_tilesize, xsize);
6977   int ysize_tile = MAX(ed_tilesize, ysize);
6978   int xsize_full = xsize + 1;
6979   int ysize_full = ysize + 1;
6980   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
6981   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
6982   Pixel line_color = getTabulatorBarColor();
6983
6984   if (line_color == BLACK_PIXEL)                // black => transparent
6985     return;
6986
6987   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
6988   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
6989   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
6990 }
6991
6992 static void DrawEditorLevelBorderLinesIfNeeded(void)
6993 {
6994   int xsize = lev_fieldx * ed_tilesize;
6995   int ysize = lev_fieldy * ed_tilesize;
6996   int line_size = getTabulatorBarHeight();
6997
6998   if (!suppressBorderElement())
6999     return;
7000
7001   // draw little border line around editable level playfield
7002
7003   if (xsize < SXSIZE)
7004     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
7005
7006   if (ysize < SYSIZE)
7007     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
7008
7009   if (xsize < SXSIZE && ysize < SYSIZE)
7010     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
7011 }
7012
7013 static void DrawEditorElement(int x, int y, int element)
7014 {
7015   DrawSizedElement(x, y, element, ed_tilesize);
7016 }
7017
7018 static void DrawEditorElementThruMask(int x, int y, int element)
7019 {
7020   DrawSizedElementThruMask(x, y, element, ed_tilesize);
7021 }
7022
7023 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
7024 {
7025   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
7026 }
7027
7028 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
7029 {
7030   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
7031   DrawEditorLevelBorderLinesIfNeeded();
7032 }
7033
7034 static void DrawDrawingArea(int id)
7035 {
7036   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7037   int x, y;
7038
7039   int *value = drawingarea_info[id].value;
7040   int area_xsize = drawingarea_info[id].area_xsize;
7041   int area_ysize = drawingarea_info[id].area_ysize;
7042   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7043
7044   for (x = 0; x < area_xsize; x++)
7045     for (y = 0; y < area_ysize; y++)
7046       DrawSizedGraphicExt(drawto,
7047                           gi->x + x * tilesize,
7048                           gi->y + y * tilesize,
7049                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
7050 }
7051
7052 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
7053 {
7054   int x, y;
7055   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
7056   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
7057
7058   BlitBitmap(drawto, drawto,
7059              SX + (dx == -1 ? ed_tilesize : 0),
7060              SY + (dy == -1 ? ed_tilesize : 0),
7061              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
7062              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
7063              SX + (dx == +1 ? ed_tilesize : 0),
7064              SY + (dy == +1 ? ed_tilesize : 0));
7065
7066   if (dx)
7067   {
7068     x = (dx == 1 ? 0 : ed_fieldx - 1);
7069     for (y = 0; y < ed_fieldy; y++)
7070       DrawEditorElementOrWall(x, y, from_x, from_y);
7071   }
7072   else if (dy)
7073   {
7074     y = (dy == 1 ? 0 : ed_fieldy - 1);
7075     for (x = 0; x < ed_fieldx; x++)
7076       DrawEditorElementOrWall(x, y, from_x, from_y);
7077   }
7078
7079   redraw_mask |= REDRAW_FIELD;
7080   BackToFront();
7081 }
7082
7083 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
7084                                    int *x, int *y)
7085 {
7086   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
7087 }
7088
7089 static void CreateControlButtons(void)
7090 {
7091   struct GadgetInfo *gi;
7092   int i;
7093
7094   // create toolbox buttons
7095   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7096   {
7097     int type_id = controlbutton_info[i].gadget_id;      // same as gadget ID here
7098     int id = controlbutton_info[i].gadget_id;
7099     int type = controlbutton_info[i].gadget_type;
7100     int graphic = controlbutton_info[i].graphic;
7101     struct XYTileSize *pos = controlbutton_info[i].pos;
7102     struct GraphicInfo *gd = &graphic_info[graphic];
7103     Bitmap *deco_bitmap = NULL;
7104     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
7105     int tile_size = 0, deco_shift = 0;
7106     boolean deco_masked = FALSE;
7107     int gd_x1 = gd->src_x;
7108     int gd_y1 = gd->src_y;
7109     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7110     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7111     int gd_x1a = gd->src_x + gd->active_xoffset;
7112     int gd_y1a = gd->src_y + gd->active_yoffset;
7113     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7114     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7115     int x = pos->x;
7116     int y = pos->y;
7117     unsigned int event_mask;
7118     int radio_button_nr = RADIO_NR_NONE;
7119     boolean checked = FALSE;
7120
7121     if (type_id != i)
7122       Fail("'controlbutton_info' structure corrupted at index %d -- please fix", i);
7123
7124     if (type == GD_TYPE_RADIO_BUTTON)
7125     {
7126       event_mask = GD_EVENT_PRESSED;
7127       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
7128
7129       if (id == drawing_function)
7130         checked = TRUE;
7131     }
7132     else
7133     {
7134       if (id == GADGET_ID_WRAP_LEFT ||
7135           id == GADGET_ID_WRAP_RIGHT ||
7136           id == GADGET_ID_WRAP_UP ||
7137           id == GADGET_ID_WRAP_DOWN)
7138         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7139       else
7140         event_mask = GD_EVENT_RELEASED;
7141     }
7142
7143     if (id == GADGET_ID_PROPERTIES ||
7144         id == GADGET_ID_PALETTE)
7145     {
7146       x += DX;
7147       y += DY;
7148     }
7149     else if (id == GADGET_ID_ELEMENT_LEFT ||
7150              id == GADGET_ID_ELEMENT_MIDDLE ||
7151              id == GADGET_ID_ELEMENT_RIGHT)
7152     {
7153       x += DX;
7154       y += DY;
7155
7156       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
7157                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
7158                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
7159
7160       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
7161                                    editor.button.element_left.tile_size :
7162                                    id == GADGET_ID_ELEMENT_MIDDLE ?
7163                                    editor.button.element_middle.tile_size :
7164                                    id == GADGET_ID_ELEMENT_RIGHT ?
7165                                    editor.button.element_right.tile_size : 0);
7166
7167       // make sure that decoration does not overlap gadget border
7168       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
7169
7170       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
7171
7172       deco_xpos = (gd->width  - tile_size) / 2;
7173       deco_ypos = (gd->height - tile_size) / 2;
7174       deco_shift = 1;
7175       deco_masked = gd->draw_masked;
7176     }
7177     else
7178     {
7179       x += EX;
7180       y += EY;
7181     }
7182
7183     gi = CreateGadget(GDI_CUSTOM_ID, id,
7184                       GDI_CUSTOM_TYPE_ID, type_id,
7185                       GDI_IMAGE_ID, graphic,
7186                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
7187                       GDI_X, x,
7188                       GDI_Y, y,
7189                       GDI_WIDTH, gd->width,
7190                       GDI_HEIGHT, gd->height,
7191                       GDI_TYPE, type,
7192                       GDI_STATE, GD_BUTTON_UNPRESSED,
7193                       GDI_RADIO_NR, radio_button_nr,
7194                       GDI_CHECKED, checked,
7195                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7196                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7197                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7198                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7199                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7200                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7201                       GDI_DECORATION_SIZE, tile_size, tile_size,
7202                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
7203                       GDI_DECORATION_MASKED, deco_masked,
7204                       GDI_EVENT_MASK, event_mask,
7205                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7206                       GDI_CALLBACK_ACTION, HandleControlButtons,
7207                       GDI_END);
7208
7209     if (gi == NULL)
7210       Fail("cannot create gadget");
7211
7212     level_editor_gadget[id] = gi;
7213   }
7214
7215   // these values are not constant, but can change at runtime
7216   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
7217   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
7218   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
7219   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
7220   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
7221   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
7222   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
7223   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
7224   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
7225   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
7226   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
7227   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
7228
7229   // create buttons for scrolling of drawing area and element list
7230   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
7231   {
7232     int id = scrollbutton_info[i].gadget_id;
7233     int type_id = scrollbutton_info[i].gadget_type_id;
7234     int graphic = scrollbutton_info[i].graphic;
7235     struct GraphicInfo *gd = &graphic_info[graphic];
7236     Bitmap *gd_bitmap = gd->bitmap;
7237     int gd_x1 = gd->src_x;
7238     int gd_y1 = gd->src_y;
7239     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7240     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7241     int width  = gd->width;
7242     int height = gd->height;
7243     int x = scrollbutton_pos[i].x;
7244     int y = scrollbutton_pos[i].y;
7245     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7246
7247     if (type_id != i)
7248       Fail("'scrollbutton_info' structure corrupted at index %d -- please fix", i);
7249
7250     if (id == GADGET_ID_SCROLL_LIST_UP ||
7251         id == GADGET_ID_SCROLL_LIST_DOWN)
7252     {
7253       x += PX;
7254       y += PY;
7255     }
7256     else
7257     {
7258       x += SX;
7259       y += SY;
7260     }
7261
7262     gi = CreateGadget(GDI_CUSTOM_ID, id,
7263                       GDI_CUSTOM_TYPE_ID, type_id,
7264                       GDI_IMAGE_ID, graphic,
7265                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
7266                       GDI_X, x,
7267                       GDI_Y, y,
7268                       GDI_WIDTH, width,
7269                       GDI_HEIGHT, height,
7270                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7271                       GDI_STATE, GD_BUTTON_UNPRESSED,
7272                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7273                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7274                       GDI_EVENT_MASK, event_mask,
7275                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7276                       GDI_CALLBACK_ACTION, HandleControlButtons,
7277                       GDI_END);
7278
7279     if (gi == NULL)
7280       Fail("cannot create gadget");
7281
7282     level_editor_gadget[id] = gi;
7283   }
7284
7285   // create buttons for element list
7286   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7287   {
7288     int type_id = i;
7289     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
7290     int graphic = IMG_EDITOR_PALETTE_BUTTON;
7291     struct GraphicInfo *gd = &graphic_info[graphic];
7292     Bitmap *gd_bitmap = gd->bitmap;
7293     Bitmap *deco_bitmap;
7294     int deco_x, deco_y, deco_xpos, deco_ypos;
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 xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
7300     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
7301     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
7302     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
7303     int element = editor_elements[i];
7304     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
7305     unsigned int event_mask = GD_EVENT_RELEASED;
7306
7307     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
7308
7309     deco_xpos = (gd->width  - tile_size) / 2;
7310     deco_ypos = (gd->height - tile_size) / 2;
7311
7312     gi = CreateGadget(GDI_CUSTOM_ID, id,
7313                       GDI_CUSTOM_TYPE_ID, type_id,
7314                       GDI_IMAGE_ID, graphic,
7315                       GDI_INFO_TEXT, getElementInfoText(element),
7316                       GDI_X, x,
7317                       GDI_Y, y,
7318                       GDI_WIDTH, gd->width,
7319                       GDI_HEIGHT, gd->height,
7320                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7321                       GDI_STATE, GD_BUTTON_UNPRESSED,
7322                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7323                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7324                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7325                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7326                       GDI_DECORATION_SIZE, tile_size, tile_size,
7327                       GDI_DECORATION_SHIFTING, 1, 1,
7328                       GDI_EVENT_MASK, event_mask,
7329                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7330                       GDI_CALLBACK_ACTION, HandleControlButtons,
7331                       GDI_END);
7332
7333     if (gi == NULL)
7334       Fail("cannot create gadget");
7335
7336     level_editor_gadget[id] = gi;
7337   }
7338 }
7339
7340 static void CreateCounterButtons(void)
7341 {
7342   int max_infotext_len = getMaxInfoTextLength();
7343   int i;
7344
7345   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
7346   {
7347     int type_id = counterbutton_info[i].gadget_type_id;
7348     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
7349     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
7350     int j;
7351
7352     if (type_id != i)
7353       Fail("'counterbutton_info' structure corrupted at index %d -- please fix", i);
7354
7355     // determine horizontal position to the right of specified gadget
7356     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7357       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
7358            ED_GADGET_TEXT_DISTANCE);
7359
7360     // determine horizontal offset for leading text
7361     if (counterbutton_info[i].text_left != NULL)
7362       x += getTextWidthForGadget(counterbutton_info[i].text_left);
7363
7364     for (j = 0; j < 2; j++)
7365     {
7366       struct GadgetInfo *gi;
7367       int id = (j == 0 ?
7368                 counterbutton_info[i].gadget_id_down :
7369                 counterbutton_info[i].gadget_id_up);
7370       int graphic;
7371       struct GraphicInfo *gd;
7372       int gd_x1, gd_x2, gd_y1, gd_y2;
7373       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7374       char infotext[max_infotext_len + 1];
7375
7376       if (i == ED_COUNTER_ID_SELECT_LEVEL)
7377       {
7378         graphic = (j == 0 ?
7379                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
7380                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
7381
7382         event_mask |= GD_EVENT_RELEASED;
7383
7384         if (j == 0)
7385         {
7386           x = DX + editor.button.prev_level.x;
7387           y = DY + editor.button.prev_level.y;
7388         }
7389         else
7390         {
7391           x = DX + editor.button.next_level.x;
7392           y = DY + editor.button.next_level.y;
7393         }
7394       }
7395       else
7396       {
7397         graphic = (j == 0 ?
7398                    IMG_EDITOR_COUNTER_DOWN :
7399                    IMG_EDITOR_COUNTER_UP);
7400       }
7401
7402       gd = &graphic_info[graphic];
7403
7404       gd_x1 = gd->src_x;
7405       gd_y1 = gd->src_y;
7406       gd_x2 = gd->src_x + gd->pressed_xoffset;
7407       gd_y2 = gd->src_y + gd->pressed_yoffset;
7408
7409       sprintf(infotext, "%s counter value by 1, 5 or 10",
7410               (j == 0 ? "decrease" : "increase"));
7411
7412       gi = CreateGadget(GDI_CUSTOM_ID, id,
7413                         GDI_CUSTOM_TYPE_ID, type_id,
7414                         GDI_IMAGE_ID, graphic,
7415                         GDI_INFO_TEXT, infotext,
7416                         GDI_X, x,
7417                         GDI_Y, y,
7418                         GDI_WIDTH, gd->width,
7419                         GDI_HEIGHT, gd->height,
7420                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7421                         GDI_STATE, GD_BUTTON_UNPRESSED,
7422                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7423                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7424                         GDI_EVENT_MASK, event_mask,
7425                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7426                         GDI_CALLBACK_ACTION, HandleCounterButtons,
7427                         GDI_END);
7428
7429       if (gi == NULL)
7430         Fail("cannot create gadget");
7431
7432       level_editor_gadget[id] = gi;
7433       right_gadget_border[id] =
7434         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7435
7436       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
7437
7438       if (j == 0)
7439       {
7440         int font_type = FONT_INPUT_1;
7441         int font_type_active = FONT_INPUT_1_ACTIVE;
7442
7443         id = counterbutton_info[i].gadget_id_text;
7444
7445         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7446
7447         if (i == ED_COUNTER_ID_SELECT_LEVEL)
7448         {
7449           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
7450
7451           font_type = FONT_LEVEL_NUMBER;
7452           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
7453
7454           x = DX + editor.input.level_number.x;
7455           y = DY + editor.input.level_number.y;
7456         }
7457         else
7458         {
7459           graphic = IMG_EDITOR_COUNTER_INPUT;
7460         }
7461
7462         gd = &graphic_info[graphic];
7463
7464         gd_x1 = gd->src_x;
7465         gd_y1 = gd->src_y;
7466         gd_x2 = gd->src_x + gd->active_xoffset;
7467         gd_y2 = gd->src_y + gd->active_yoffset;
7468
7469         gi = CreateGadget(GDI_CUSTOM_ID, id,
7470                           GDI_CUSTOM_TYPE_ID, type_id,
7471                           GDI_IMAGE_ID, graphic,
7472                           GDI_INFO_TEXT, "enter counter value",
7473                           GDI_X, x,
7474                           GDI_Y, y,
7475                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
7476                           GDI_NUMBER_VALUE, 0,
7477                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
7478                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
7479                           GDI_TEXT_SIZE, 3,     // minimal counter text size
7480                           GDI_TEXT_FONT, font_type,
7481                           GDI_TEXT_FONT_ACTIVE, font_type_active,
7482                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7483                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7484                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7485                           GDI_DESIGN_WIDTH, gd->width,
7486                           GDI_EVENT_MASK, event_mask,
7487                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7488                           GDI_CALLBACK_ACTION, HandleCounterButtons,
7489                           GDI_END);
7490
7491         if (gi == NULL)
7492           Fail("cannot create gadget");
7493
7494         level_editor_gadget[id] = gi;
7495         right_gadget_border[id] =
7496           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7497
7498         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
7499       }
7500     }
7501   }
7502 }
7503
7504 static void CreateDrawingAreas(void)
7505 {
7506   int i;
7507
7508   // these values are not constant, but can change at runtime
7509   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
7510   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
7511
7512   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
7513   {
7514     struct GadgetInfo *gi;
7515     int id = drawingarea_info[i].gadget_id;
7516     int type_id = drawingarea_info[i].gadget_type_id;
7517     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
7518     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
7519     int area_xsize = drawingarea_info[i].area_xsize;
7520     int area_ysize = drawingarea_info[i].area_ysize;
7521     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
7522                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
7523     unsigned int event_mask =
7524       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
7525       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
7526
7527     if (type_id != i)
7528       Fail("'drawingarea_info' structure corrupted at index %d -- please fix", i);
7529
7530     // determine horizontal position to the right of specified gadget
7531     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
7532       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
7533            ED_DRAWINGAREA_TEXT_DISTANCE);
7534
7535     // determine horizontal offset for leading text
7536     if (drawingarea_info[i].text_left != NULL)
7537       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
7538
7539     gi = CreateGadget(GDI_CUSTOM_ID, id,
7540                       GDI_CUSTOM_TYPE_ID, type_id,
7541                       GDI_X, x,
7542                       GDI_Y, y,
7543                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
7544                       GDI_AREA_SIZE, area_xsize, area_ysize,
7545                       GDI_ITEM_SIZE, item_size, item_size,
7546                       GDI_EVENT_MASK, event_mask,
7547                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
7548                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
7549                       GDI_END);
7550
7551     if (gi == NULL)
7552       Fail("cannot create gadget");
7553
7554     level_editor_gadget[id] = gi;
7555     right_gadget_border[id] =
7556       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
7557   }
7558 }
7559
7560 static void CreateTextInputGadgets(void)
7561 {
7562   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
7563   int max_infotext_len = getMaxInfoTextLength();
7564   int i;
7565
7566   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
7567   {
7568     int gd_x1 = gd->src_x;
7569     int gd_y1 = gd->src_y;
7570     int gd_x2 = gd->src_x + gd->active_xoffset;
7571     int gd_y2 = gd->src_y + gd->active_yoffset;
7572     struct GadgetInfo *gi;
7573     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7574     char infotext[MAX_OUTPUT_LINESIZE + 1];
7575     int id = textinput_info[i].gadget_id;
7576     int type_id = textinput_info[i].gadget_type_id;
7577     int x, y;
7578
7579     if (type_id != i)
7580       Fail("'textinput_info' structure corrupted at index %d -- please fix", i);
7581
7582     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
7583     {
7584       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
7585       int border_size = gd->border_size;
7586       int font_nr = FONT_INPUT_1;
7587       int font_height = getFontHeight(font_nr);
7588       int xoffset = element_border + TILEX + element_border + 3 * border_size;
7589       int yoffset = element_border + (TILEY - font_height) / 2;
7590
7591       x = (editor.settings.element_name.x != -1 ?
7592            editor.settings.element_name.x :
7593            editor.settings.element_graphic.x + xoffset) - border_size;
7594       y = (editor.settings.element_name.y != -1 ?
7595            editor.settings.element_name.y :
7596            editor.settings.element_graphic.y + yoffset) - border_size;
7597     }
7598     else
7599     {
7600       x = ED_SETTINGS_X(textinput_info[i].x);
7601       y = ED_SETTINGS_Y(textinput_info[i].y);
7602     }
7603
7604     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
7605     infotext[max_infotext_len] = '\0';
7606
7607     gi = CreateGadget(GDI_CUSTOM_ID, id,
7608                       GDI_CUSTOM_TYPE_ID, type_id,
7609                       GDI_INFO_TEXT, infotext,
7610                       GDI_X, SX + x,
7611                       GDI_Y, SY + y,
7612                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
7613                       GDI_TEXT_VALUE, textinput_info[i].value,
7614                       GDI_TEXT_SIZE, textinput_info[i].size,
7615                       GDI_TEXT_FONT, FONT_INPUT_1,
7616                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7617                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7618                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7619                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7620                       GDI_DESIGN_WIDTH, gd->width,
7621                       GDI_EVENT_MASK, event_mask,
7622                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7623                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
7624                       GDI_END);
7625
7626     if (gi == NULL)
7627       Fail("cannot create gadget");
7628
7629     level_editor_gadget[id] = gi;
7630   }
7631 }
7632
7633 static void CreateTextAreaGadgets(void)
7634 {
7635   int max_infotext_len = getMaxInfoTextLength();
7636   int i;
7637
7638   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
7639   {
7640     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
7641     int gd_x1 = gd->src_x;
7642     int gd_y1 = gd->src_y;
7643     int gd_x2 = gd->src_x + gd->active_xoffset;
7644     int gd_y2 = gd->src_y + gd->active_yoffset;
7645     struct GadgetInfo *gi;
7646     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
7647     char infotext[MAX_OUTPUT_LINESIZE + 1];
7648     int id = textarea_info[i].gadget_id;
7649     int type_id = textarea_info[i].gadget_type_id;
7650     int area_xsize = textarea_info[i].xsize;
7651     int area_ysize = textarea_info[i].ysize;
7652
7653     if (type_id != i)
7654       Fail("'textarea_info' structure corrupted at index %d -- please fix", i);
7655
7656     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
7657     infotext[max_infotext_len] = '\0';
7658
7659     gi = CreateGadget(GDI_CUSTOM_ID, id,
7660                       GDI_CUSTOM_TYPE_ID, type_id,
7661                       GDI_INFO_TEXT, infotext,
7662                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
7663                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
7664                       GDI_TYPE, GD_TYPE_TEXT_AREA,
7665                       GDI_AREA_SIZE, area_xsize, area_ysize,
7666                       GDI_TEXT_FONT, FONT_INPUT_1,
7667                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7668                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7669                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7670                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7671                       GDI_DESIGN_WIDTH, gd->width,
7672                       GDI_EVENT_MASK, event_mask,
7673                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7674                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
7675                       GDI_END);
7676
7677     if (gi == NULL)
7678       Fail("cannot create gadget");
7679
7680     level_editor_gadget[id] = gi;
7681   }
7682 }
7683
7684 static void CreateSelectboxGadgets(void)
7685 {
7686   int max_infotext_len = getMaxInfoTextLength();
7687   int i, j;
7688
7689   for (i = 0; i < ED_NUM_SELECTBOX; i++)
7690   {
7691     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
7692     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
7693     int gd_x1 = gd->src_x;
7694     int gd_y1 = gd->src_y;
7695     int gd_x2 = gd->src_x + gd->active_xoffset;
7696     int gd_y2 = gd->src_y + gd->active_yoffset;
7697     int selectbox_button_xsize = gd2->width;
7698     struct GadgetInfo *gi;
7699     char infotext[MAX_OUTPUT_LINESIZE + 1];
7700     int id = selectbox_info[i].gadget_id;
7701     int type_id = selectbox_info[i].gadget_type_id;
7702     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
7703     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
7704     unsigned int event_mask =
7705       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7706
7707     if (type_id != i)
7708       Fail("'selectbox_info' structure corrupted at index %d -- please fix", i);
7709
7710     if (selectbox_info[i].size == -1)   // dynamically determine size
7711     {
7712       // (we cannot use -1 for uninitialized values if we directly compare
7713       // with results from strlen(), because the '<' and '>' operation will
7714       // implicitely cast -1 to an unsigned integer value!)
7715       selectbox_info[i].size = 0;
7716
7717       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
7718         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
7719           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
7720
7721       selectbox_info[i].size++;         // add one character empty space
7722     }
7723
7724     // determine horizontal position to the right of specified gadget
7725     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
7726       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
7727            ED_GADGET_TEXT_DISTANCE);
7728
7729     // determine horizontal offset for leading text
7730     if (selectbox_info[i].text_left != NULL)
7731       x += getTextWidthForGadget(selectbox_info[i].text_left);
7732
7733     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
7734     infotext[max_infotext_len] = '\0';
7735
7736     gi = CreateGadget(GDI_CUSTOM_ID, id,
7737                       GDI_CUSTOM_TYPE_ID, type_id,
7738                       GDI_INFO_TEXT, infotext,
7739                       GDI_X, x,
7740                       GDI_Y, y,
7741                       GDI_TYPE, GD_TYPE_SELECTBOX,
7742                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
7743                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
7744                       GDI_TEXT_SIZE, selectbox_info[i].size,
7745                       GDI_TEXT_FONT, FONT_INPUT_1,
7746                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7747                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
7748                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7749                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7750                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7751                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
7752                       GDI_DESIGN_WIDTH, gd->width,
7753                       GDI_EVENT_MASK, event_mask,
7754                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7755                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
7756                       GDI_END);
7757
7758     if (gi == NULL)
7759       Fail("cannot create gadget");
7760
7761     level_editor_gadget[id] = gi;
7762     right_gadget_border[id] =
7763       getRightGadgetBorder(gi, selectbox_info[i].text_right);
7764   }
7765 }
7766
7767 static void CreateTextbuttonGadgets(void)
7768 {
7769   int max_infotext_len = getMaxInfoTextLength();
7770   int i;
7771
7772   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
7773   {
7774     int id = textbutton_info[i].gadget_id;
7775     int type_id = textbutton_info[i].gadget_type_id;
7776     int is_tab_button =
7777       ((id >= GADGET_ID_LEVELCONFIG_LEVEL && id <= GADGET_ID_LEVELCONFIG_ENGINE) ||
7778        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
7779     int graphic =
7780       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
7781     int gadget_distance =
7782       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
7783     struct GraphicInfo *gd = &graphic_info[graphic];
7784     int gd_x1 = gd->src_x;
7785     int gd_y1 = gd->src_y;
7786     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7787     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7788     int gd_x1a = gd->src_x + gd->active_xoffset;
7789     int gd_y1a = gd->src_y + gd->active_yoffset;
7790     int border_xsize = gd->border_size + gd->draw_xoffset;
7791     int border_ysize = gd->border_size;
7792     struct GadgetInfo *gi;
7793     unsigned int event_mask = GD_EVENT_RELEASED;
7794     char infotext[MAX_OUTPUT_LINESIZE + 1];
7795     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
7796     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
7797
7798     if (type_id != i)
7799       Fail("'textbutton_info' structure corrupted at index %d -- please fix", i);
7800
7801     if (textbutton_info[i].size == -1)  // dynamically determine size
7802       textbutton_info[i].size = strlen(textbutton_info[i].text);
7803
7804     sprintf(infotext, "%s", textbutton_info[i].infotext);
7805     infotext[max_infotext_len] = '\0';
7806
7807     // determine horizontal position to the right of specified gadget
7808     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7809     {
7810       int gadget_id_align = textbutton_info[i].gadget_id_align;
7811
7812       x = right_gadget_border[gadget_id_align] + gadget_distance;
7813
7814       if (textbutton_info[i].y == -1)
7815         y = level_editor_gadget[gadget_id_align]->y;
7816     }
7817
7818     // determine horizontal offset for leading text
7819     if (textbutton_info[i].text_left != NULL)
7820       x += getTextWidthForGadget(textbutton_info[i].text_left);
7821
7822     gi = CreateGadget(GDI_CUSTOM_ID, id,
7823                       GDI_CUSTOM_TYPE_ID, type_id,
7824                       GDI_IMAGE_ID, graphic,
7825                       GDI_INFO_TEXT, infotext,
7826                       GDI_X, x,
7827                       GDI_Y, y,
7828                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
7829                       GDI_TEXT_VALUE, textbutton_info[i].text,
7830                       GDI_TEXT_SIZE, textbutton_info[i].size,
7831                       GDI_TEXT_FONT, FONT_INPUT_2,
7832                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
7833                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7834                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7835                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7836                       GDI_BORDER_SIZE, border_xsize, border_ysize,
7837                       GDI_DESIGN_WIDTH, gd->width,
7838                       GDI_DECORATION_SHIFTING, 1, 1,
7839                       GDI_EVENT_MASK, event_mask,
7840                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7841                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
7842                       GDI_END);
7843
7844     if (gi == NULL)
7845       Fail("cannot create gadget");
7846
7847     level_editor_gadget[id] = gi;
7848     right_gadget_border[id] =
7849       getRightGadgetBorder(gi, textbutton_info[i].text_right);
7850   }
7851 }
7852
7853 static void CreateGraphicbuttonGadgets(void)
7854 {
7855   struct GadgetInfo *gi;
7856   int i;
7857
7858   // create buttons for scrolling of drawing area and element list
7859   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
7860   {
7861     int id = graphicbutton_info[i].gadget_id;
7862     int type_id = graphicbutton_info[i].gadget_type_id;
7863     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
7864     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
7865     int graphic = graphicbutton_info[i].graphic;
7866     struct GraphicInfo *gd = &graphic_info[graphic];
7867     int gd_x1 = gd->src_x;
7868     int gd_y1 = gd->src_y;
7869     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7870     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7871     unsigned int event_mask = GD_EVENT_RELEASED;
7872
7873     if (type_id != i)
7874       Fail("'graphicbutton_info' structure corrupted at index %d -- please fix", i);
7875
7876     // determine horizontal position to the right of specified gadget
7877     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7878       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
7879            ED_GADGET_TEXT_DISTANCE);
7880
7881     // determine horizontal offset for leading text
7882     if (graphicbutton_info[i].text_left != NULL)
7883       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
7884
7885     gi = CreateGadget(GDI_CUSTOM_ID, id,
7886                       GDI_CUSTOM_TYPE_ID, type_id,
7887                       GDI_IMAGE_ID, graphic,
7888                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
7889                       GDI_X, x,
7890                       GDI_Y, y,
7891                       GDI_WIDTH, gd->width,
7892                       GDI_HEIGHT, gd->height,
7893                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7894                       GDI_STATE, GD_BUTTON_UNPRESSED,
7895                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7896                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7897                       GDI_EVENT_MASK, event_mask,
7898                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7899                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
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, graphicbutton_info[i].text_right);
7908   }
7909 }
7910
7911 static void CreateScrollbarGadgets(void)
7912 {
7913   int i;
7914
7915   // these values are not constant, but can change at runtime
7916   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
7917     SX + ED_SCROLL_HORIZONTAL_XPOS;
7918   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
7919     SY + ED_SCROLL_HORIZONTAL_YPOS;
7920   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
7921     ED_SCROLL_HORIZONTAL_XSIZE;
7922   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
7923     ED_SCROLL_HORIZONTAL_YSIZE;
7924   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
7925   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
7926   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
7927   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
7928
7929   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
7930     SX + ED_SCROLL_VERTICAL_XPOS;
7931   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
7932     SY + ED_SCROLL_VERTICAL_YPOS;
7933   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
7934     ED_SCROLL_VERTICAL_XSIZE;
7935   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
7936     ED_SCROLL_VERTICAL_YSIZE;
7937   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
7938   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
7939   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
7940   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
7941
7942   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
7943     PX + ED_SCROLL2_VERTICAL_XPOS;
7944   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
7945     PY + ED_SCROLL2_VERTICAL_YPOS;
7946   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
7947     ED_SCROLL2_VERTICAL_XSIZE;
7948   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
7949     ED_SCROLL2_VERTICAL_YSIZE;
7950   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
7951   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
7952   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
7953   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
7954
7955   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
7956   {
7957     int id = scrollbar_info[i].gadget_id;
7958     int type_id = scrollbar_info[i].gadget_type_id;
7959     int graphic = scrollbar_info[i].graphic;
7960     struct GraphicInfo *gd = &graphic_info[graphic];
7961     int gd_x1 = gd->src_x;
7962     int gd_y1 = gd->src_y;
7963     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7964     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7965     struct GadgetInfo *gi;
7966     int items_max, items_visible, item_position;
7967     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
7968
7969     if (type_id != i)
7970       Fail("'scrollbar_info' structure corrupted at index %d -- please fix", i);
7971
7972     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
7973     {
7974       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
7975       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
7976       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
7977     }
7978     else        // drawing area scrollbars
7979     {
7980       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
7981       {
7982         items_max = MAX(lev_fieldx + 2, ed_fieldx);
7983         items_visible = ed_fieldx;
7984         item_position = 0;
7985       }
7986       else
7987       {
7988         items_max = MAX(lev_fieldy + 2, ed_fieldy);
7989         items_visible = ed_fieldy;
7990         item_position = 0;
7991       }
7992     }
7993
7994     gi = CreateGadget(GDI_CUSTOM_ID, id,
7995                       GDI_CUSTOM_TYPE_ID, type_id,
7996                       GDI_IMAGE_ID, graphic,
7997                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
7998                       GDI_X, scrollbar_pos[i].x,
7999                       GDI_Y, scrollbar_pos[i].y,
8000                       GDI_WIDTH, scrollbar_pos[i].width,
8001                       GDI_HEIGHT, scrollbar_pos[i].height,
8002                       GDI_TYPE, scrollbar_info[i].type,
8003                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
8004                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8005                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
8006                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
8007                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
8008                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
8009                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
8010                       GDI_STATE, GD_BUTTON_UNPRESSED,
8011                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8012                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8013                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8014                       GDI_EVENT_MASK, event_mask,
8015                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8016                       GDI_CALLBACK_ACTION, HandleControlButtons,
8017                       GDI_END);
8018
8019     if (gi == NULL)
8020       Fail("cannot create gadget");
8021
8022     level_editor_gadget[id] = gi;
8023   }
8024 }
8025
8026 static void CreateCheckbuttonGadgets(void)
8027 {
8028   struct GadgetInfo *gi;
8029   int i;
8030
8031   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
8032   {
8033     int id = checkbutton_info[i].gadget_id;
8034     int type_id = checkbutton_info[i].gadget_type_id;
8035     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
8036                    IMG_EDITOR_CHECKBOX);
8037     struct GraphicInfo *gd = &graphic_info[graphic];
8038     int gd_x1 = gd->src_x;
8039     int gd_y1 = gd->src_y;
8040     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8041     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8042     int gd_x1a = gd->src_x + gd->active_xoffset;
8043     int gd_y1a = gd->src_y + gd->active_yoffset;
8044     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8045     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8046     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
8047     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
8048     unsigned int event_mask = GD_EVENT_PRESSED;
8049
8050     if (type_id != i)
8051       Fail("'checkbutton_info' structure corrupted at index %d -- please fix", i);
8052
8053     // determine horizontal position to the right of specified gadget
8054     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8055       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
8056            ED_GADGET_TEXT_DISTANCE);
8057
8058     // determine horizontal offset for leading text
8059     if (checkbutton_info[i].text_left != NULL)
8060       x += getTextWidthForGadget(checkbutton_info[i].text_left);
8061
8062     gi = CreateGadget(GDI_CUSTOM_ID, id,
8063                       GDI_CUSTOM_TYPE_ID, type_id,
8064                       GDI_IMAGE_ID, graphic,
8065                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
8066                       GDI_X, x,
8067                       GDI_Y, y,
8068                       GDI_WIDTH, gd->width,
8069                       GDI_HEIGHT, gd->height,
8070                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
8071                       GDI_CHECKED, *checkbutton_info[i].value,
8072                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8073                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8074                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8075                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8076                       GDI_EVENT_MASK, event_mask,
8077                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8078                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
8079                       GDI_END);
8080
8081     if (gi == NULL)
8082       Fail("cannot create gadget");
8083
8084     level_editor_gadget[id] = gi;
8085     right_gadget_border[id] =
8086       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
8087   }
8088 }
8089
8090 static void CreateRadiobuttonGadgets(void)
8091 {
8092   int graphic = IMG_EDITOR_RADIOBUTTON;
8093   struct GraphicInfo *gd = &graphic_info[graphic];
8094   int gd_x1 = gd->src_x;
8095   int gd_y1 = gd->src_y;
8096   int gd_x2 = gd->src_x + gd->pressed_xoffset;
8097   int gd_y2 = gd->src_y + gd->pressed_yoffset;
8098   int gd_x1a = gd->src_x + gd->active_xoffset;
8099   int gd_y1a = gd->src_y + gd->active_yoffset;
8100   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8101   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8102   struct GadgetInfo *gi;
8103   int i;
8104
8105   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
8106   {
8107     int id = radiobutton_info[i].gadget_id;
8108     int type_id = radiobutton_info[i].gadget_type_id;
8109     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
8110     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
8111     unsigned int event_mask = GD_EVENT_PRESSED;
8112
8113     if (type_id != i)
8114       Fail("'radiobutton_info' structure corrupted at index %d -- please fix", i);
8115
8116     int checked =
8117       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
8118
8119     // determine horizontal position to the right of specified gadget
8120     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
8121       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
8122            ED_GADGET_TEXT_DISTANCE);
8123
8124     // determine horizontal offset for leading text
8125     if (radiobutton_info[i].text_left != NULL)
8126       x += getTextWidthForGadget(radiobutton_info[i].text_left);
8127
8128     gi = CreateGadget(GDI_CUSTOM_ID, id,
8129                       GDI_CUSTOM_TYPE_ID, type_id,
8130                       GDI_IMAGE_ID, graphic,
8131                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
8132                       GDI_X, x,
8133                       GDI_Y, y,
8134                       GDI_WIDTH, gd->width,
8135                       GDI_HEIGHT, gd->height,
8136                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
8137                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
8138                       GDI_CHECKED, checked,
8139                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8140                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8141                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8142                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8143                       GDI_EVENT_MASK, event_mask,
8144                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8145                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
8146                       GDI_END);
8147
8148     if (gi == NULL)
8149       Fail("cannot create gadget");
8150
8151     level_editor_gadget[id] = gi;
8152     right_gadget_border[id] =
8153       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
8154   }
8155 }
8156
8157 void CreateLevelEditorGadgets(void)
8158 {
8159   // force EDITOR font inside level editor
8160   SetFontStatus(GAME_MODE_EDITOR);
8161
8162   // these values are not constant, but can change at runtime
8163   ed_fieldx = MAX_ED_FIELDX - 1;
8164   ed_fieldy = MAX_ED_FIELDY - 1;
8165
8166   num_editor_gadgets = NUM_EDITOR_GADGETS;
8167
8168   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
8169
8170   level_editor_gadget =
8171     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
8172   right_gadget_border =
8173     checked_calloc(num_editor_gadgets * sizeof(int));
8174
8175   // set number of empty (padding) element buttons to maximum number of buttons
8176   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
8177
8178   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
8179   editor_el_empty_ptr = editor_el_empty;
8180
8181   use_permanent_palette = !editor.palette.show_as_separate_screen;
8182
8183   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
8184
8185   ReinitializeElementList();
8186
8187   CreateControlButtons();
8188   CreateScrollbarGadgets();
8189
8190   // order of function calls is important because of cross-references
8191   CreateCheckbuttonGadgets();
8192   CreateCounterButtons();
8193   CreateRadiobuttonGadgets();
8194   CreateTextInputGadgets();
8195   CreateTextAreaGadgets();
8196   CreateSelectboxGadgets();
8197   CreateGraphicbuttonGadgets();
8198   CreateTextbuttonGadgets();
8199   CreateDrawingAreas();
8200
8201   ResetFontStatus();
8202 }
8203
8204 void FreeLevelEditorGadgets(void)
8205 {
8206   int i;
8207
8208   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
8209
8210   for (i = 0; i < num_editor_gadgets; i++)
8211   {
8212     FreeGadget(level_editor_gadget[i]);
8213
8214     level_editor_gadget[i] = NULL;
8215   }
8216
8217   checked_free(level_editor_gadget);
8218   checked_free(right_gadget_border);
8219
8220   checked_free(editor_el_empty);
8221 }
8222
8223 static void MapCounterButtons(int id)
8224 {
8225   int font_nr = FONT_TEXT_1;
8226   int font_height = getFontHeight(font_nr);
8227   int gadget_id_down = counterbutton_info[id].gadget_id_down;
8228   int gadget_id_text = counterbutton_info[id].gadget_id_text;
8229   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
8230   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
8231   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
8232   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
8233   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
8234   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8235   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8236   int yoffset = (gi_down->height - font_height) / 2;
8237   int x_left = gi_down->x - xoffset_left;
8238   int x_right;  // set after gadget position was modified
8239   int y_above = gi_down->y - yoffset_above;
8240   int x = gi_down->x;
8241   int y;        // set after gadget position was modified
8242
8243   // counter limits must be changed first to prevent value truncation
8244   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
8245                             counterbutton_info[id].max_value);
8246
8247   // right text position might have changed after setting position above
8248   x_right = gi_up->x + gi_up->width + xoffset_right;
8249
8250   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
8251
8252   // set position for counter gadgets with dynamically determined position
8253   if (id != ED_COUNTER_ID_SELECT_LEVEL)
8254   {
8255     ModifyGadget(gi_down, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8256     ModifyGadget(gi_text, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8257     ModifyGadget(gi_up,   GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8258   }
8259
8260   // vertical position might have changed after setting position above
8261   y = gi_up->y + yoffset;
8262
8263   if (counterbutton_info[id].text_above)
8264     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
8265
8266   if (counterbutton_info[id].text_left)
8267     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
8268
8269   if (counterbutton_info[id].text_right)
8270     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
8271
8272   MapGadget(gi_down);
8273   MapGadget(gi_text);
8274   MapGadget(gi_up);
8275 }
8276
8277 static void MapControlButtons(void)
8278 {
8279   int counter_id;
8280   int i;
8281
8282   // map toolbox buttons (excluding special CE toolbox buttons)
8283   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
8284     MapGadget(level_editor_gadget[i]);
8285
8286   // map toolbox buttons (element properties buttons)
8287   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
8288     MapGadget(level_editor_gadget[i]);
8289
8290   if (use_permanent_palette)
8291   {
8292     // map buttons to select elements
8293     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
8294       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
8295     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
8296     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
8297     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
8298   }
8299
8300   // map buttons to select level
8301   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
8302   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
8303   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
8304   MapCounterButtons(counter_id);
8305 }
8306
8307 static void MapDrawingArea(int id)
8308 {
8309   int font_nr = FONT_TEXT_1;
8310   int font_height = getFontHeight(font_nr);
8311   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
8312   int area_xsize = gi->drawing.area_xsize;
8313   int area_ysize = gi->drawing.area_ysize;
8314   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8315   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
8316   int x_left  = gi->x - xoffset_left - ED_DRAWINGAREA_BORDER_SIZE;
8317   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
8318   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
8319   int x_below = gi->x + (gi->width - xoffset_below) / 2;
8320   int y_side  = gi->y + (gi->height - font_height) / 2;
8321   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
8322   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
8323
8324   if (drawingarea_info[id].text_left)
8325     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
8326
8327   if (drawingarea_info[id].text_right)
8328     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
8329
8330   if (drawingarea_info[id].text_above)
8331     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
8332
8333   if (drawingarea_info[id].text_below)
8334     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
8335
8336   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
8337   {
8338     DrawElementBorder(gi->x, gi->y,
8339                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
8340                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
8341
8342     DrawDrawingArea(id);
8343   }
8344
8345   MapGadget(gi);
8346 }
8347
8348 static void MapTextInputGadget(int id)
8349 {
8350   int font_nr = FONT_TEXT_1;
8351   int font_height = getFontHeight(font_nr);
8352   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
8353   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8354   int x_above = ED_SETTINGS_X(textinput_info[id].x);
8355   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
8356
8357   if (textinput_info[id].text_above)
8358     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
8359
8360   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
8361
8362   MapGadget(gi);
8363 }
8364
8365 static void MapTextAreaGadget(int id)
8366 {
8367   int font_nr = FONT_TEXT_1;
8368   int font_height = getFontHeight(font_nr);
8369   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
8370   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8371   int x_above = ED_SETTINGS_X(textarea_info[id].x);
8372   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
8373   char *text_above = textarea_info[id].text_above;
8374
8375   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
8376     text_above = textarea_info[id].text_above_cropped;
8377
8378   if (text_above)
8379     DrawTextS(x_above, y_above, font_nr, text_above);
8380
8381   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
8382
8383   MapGadget(gi);
8384 }
8385
8386 static void MapSelectboxGadget(int id)
8387 {
8388   int font_nr = FONT_TEXT_1;
8389   int font_height = getFontHeight(font_nr);
8390   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
8391   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
8392   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8393   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8394   int yoffset = (gi->height - font_height) / 2;
8395   int x_left = gi->x - xoffset_left;
8396   int x_right = gi->x + gi->width + xoffset_right;
8397   int y_above = gi->y - yoffset_above;
8398   int x = gi->x;
8399   int y = gi->y + yoffset;
8400
8401   if (selectbox_info[id].text_above)
8402     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
8403
8404   if (selectbox_info[id].text_left)
8405     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
8406
8407   if (selectbox_info[id].text_right)
8408     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
8409
8410   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
8411
8412   MapGadget(gi);
8413 }
8414
8415 static void MapTextbuttonGadget(int id)
8416 {
8417   int font_nr = FONT_TEXT_1;
8418   int font_height = getFontHeight(font_nr);
8419   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
8420   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
8421   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8422   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8423   int yoffset = (gi->height - font_height) / 2;
8424   int x_left = gi->x - xoffset_left;
8425   int x_right = gi->x + gi->width + xoffset_right;
8426   int y_above = gi->y - yoffset_above;
8427   int x = gi->x;
8428   int y = gi->y + yoffset;
8429
8430   // only show button to delete change pages when more than minimum pages
8431   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
8432       custom_element.num_change_pages == MIN_CHANGE_PAGES)
8433     return;
8434
8435   if (textbutton_info[id].text_above)
8436     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
8437
8438   if (textbutton_info[id].text_left)
8439     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
8440
8441   if (textbutton_info[id].text_right)
8442     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
8443
8444   MapGadget(gi);
8445 }
8446
8447 static void MapGraphicbuttonGadget(int id)
8448 {
8449   int font_nr = FONT_TEXT_1;
8450   int font_height = getFontHeight(font_nr);
8451   struct GadgetInfo *gi = level_editor_gadget[graphicbutton_info[id].gadget_id];
8452   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
8453   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8454   int yoffset = (gi->height - font_height) / 2;
8455   int x_left = gi->x - xoffset_left;
8456   int x_right = gi->x + gi->width + xoffset_right;
8457   int y = gi->y + yoffset;
8458
8459   if (graphicbutton_info[id].text_left)
8460     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
8461
8462   if (graphicbutton_info[id].text_right)
8463     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
8464
8465   MapGadget(gi);
8466 }
8467
8468 static void MapRadiobuttonGadget(int id)
8469 {
8470   int font_nr = FONT_TEXT_1;
8471   int font_height = getFontHeight(font_nr);
8472   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
8473   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8474   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8475   int yoffset = (gi->height - font_height) / 2;
8476   int x_left = gi->x - xoffset_left;
8477   int x_right = gi->x + gi->width + xoffset_right;
8478   int y = gi->y + yoffset;
8479   boolean checked =
8480     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
8481
8482   if (radiobutton_info[id].text_left)
8483     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
8484
8485   if (radiobutton_info[id].text_right)
8486     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
8487
8488   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
8489
8490   MapGadget(gi);
8491 }
8492
8493 static void MapCheckbuttonGadget(int id)
8494 {
8495   int font_nr = FONT_TEXT_1;
8496   int font_height = getFontHeight(font_nr);
8497   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
8498   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8499   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8500   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8501   int yoffset = (gi->height - font_height) / 2;
8502   int y_above = gi->y - yoffset_above;
8503   int x = gi->x;
8504   int x_left, x_right, y;       // set after gadget position was modified
8505
8506   // set position for gadgets with dynamically determined position
8507   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
8508     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x), GDI_END);
8509   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
8510
8511   x_left = gi->x - xoffset_left;
8512   x_right = gi->x + gi->width + xoffset_right;
8513   y = gi->y + yoffset;
8514
8515   if (checkbutton_info[id].text_above)
8516     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
8517
8518   if (checkbutton_info[id].text_left)
8519     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
8520
8521   if (checkbutton_info[id].text_right)
8522     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
8523
8524   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
8525
8526   MapGadget(gi);
8527 }
8528
8529 static void MapMainDrawingArea(void)
8530 {
8531   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
8532   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
8533   int i;
8534
8535   if (suppressBorderElement())
8536   {
8537     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
8538     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
8539   }
8540
8541   for (i = ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
8542   {
8543     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
8544           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
8545          no_horizontal_scrollbar) ||
8546         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
8547           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
8548          no_vertical_scrollbar))
8549       continue;
8550
8551     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
8552   }
8553
8554   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
8555   {
8556     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
8557         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
8558       continue;
8559
8560     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
8561   }
8562
8563   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
8564 }
8565
8566 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
8567 {
8568   int i;
8569
8570   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
8571   {
8572     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
8573         i == GADGET_ID_CUSTOM_COPY_TO ||
8574         i == GADGET_ID_CUSTOM_EXCHANGE ||
8575         i == GADGET_ID_CUSTOM_COPY ||
8576         i == GADGET_ID_CUSTOM_PASTE)
8577     {
8578       if (map)
8579         MapGadget(level_editor_gadget[i]);
8580       else
8581         UnmapGadget(level_editor_gadget[i]);
8582     }
8583   }
8584 }
8585
8586 static void MapLevelEditorToolboxCustomGadgets(void)
8587 {
8588   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
8589 }
8590
8591 static void MapLevelEditorToolboxCustomGadgetsIfNeeded(void)
8592 {
8593   if (IS_CUSTOM_ELEMENT(properties_element) ||
8594       IS_GROUP_ELEMENT(properties_element) ||
8595       IS_EMPTY_ELEMENT(properties_element))
8596     MapLevelEditorToolboxCustomGadgets();
8597 }
8598
8599 static void UnmapLevelEditorToolboxCustomGadgets(void)
8600 {
8601   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
8602 }
8603
8604 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
8605 {
8606   int i;
8607
8608   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
8609   {
8610     if (i != GADGET_ID_SINGLE_ITEMS &&
8611         i != GADGET_ID_PICK_ELEMENT)
8612     {
8613       struct GadgetInfo *gi = level_editor_gadget[i];
8614
8615       if (map)
8616       {
8617         MapGadget(gi);
8618       }
8619       else
8620       {
8621         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
8622         struct GraphicInfo *gd = &graphic_info[graphic];
8623
8624         UnmapGadget(gi);
8625
8626         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
8627                    gi->width, gi->height, gi->x, gi->y);
8628
8629         redraw_mask |= REDRAW_DOOR_3;
8630       }
8631     }
8632   }
8633 }
8634
8635 static void MapLevelEditorToolboxDrawingGadgets(void)
8636 {
8637   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
8638 }
8639
8640 static void UnmapLevelEditorToolboxDrawingGadgets(void)
8641 {
8642   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
8643 }
8644
8645 static void UnmapDrawingArea(int id)
8646 {
8647   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
8648 }
8649
8650 static void UnmapLevelEditorFieldGadgets(void)
8651 {
8652   int i;
8653
8654   for (i = 0; i < num_editor_gadgets; i++)
8655     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
8656                           level_editor_gadget[i]->y))
8657       UnmapGadget(level_editor_gadget[i]);
8658 }
8659
8660 void UnmapLevelEditorGadgets(void)
8661 {
8662   int i;
8663
8664   for (i = 0; i < num_editor_gadgets; i++)
8665     UnmapGadget(level_editor_gadget[i]);
8666 }
8667
8668 static void ResetUndoBuffer(void)
8669 {
8670   undo_buffer_position = -1;
8671   undo_buffer_steps = -1;
8672   redo_buffer_steps = 0;
8673
8674   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
8675
8676   level.changed = FALSE;
8677 }
8678
8679 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
8680 {
8681   if (remap_toolbox_gadgets)
8682   {
8683     ModifyEditorElementList();
8684     RedrawDrawingElements();
8685   }
8686
8687   if (edit_mode == ED_MODE_LEVELCONFIG)
8688     DrawLevelConfigWindow();
8689   else if (edit_mode == ED_MODE_PROPERTIES)
8690     DrawPropertiesWindow();
8691   else if (edit_mode == ED_MODE_PALETTE)
8692     DrawPaletteWindow();
8693   else  // edit_mode == ED_MODE_DRAWING
8694     DrawDrawingWindowExt(remap_toolbox_gadgets);
8695 }
8696
8697 static void DrawEditModeWindow(void)
8698 {
8699   DrawEditModeWindowExt(TRUE);
8700 }
8701
8702 static void DrawEditModeWindow_PlayfieldOnly(void)
8703 {
8704   DrawEditModeWindowExt(FALSE);
8705 }
8706
8707 static void ChangeEditModeWindow(int new_edit_mode)
8708 {
8709   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
8710
8711   DrawEditModeWindow();
8712 }
8713
8714 static boolean LevelChanged(void)
8715 {
8716   boolean field_changed = FALSE;
8717   int x, y;
8718
8719   for (y = 0; y < lev_fieldy; y++)
8720     for (x = 0; x < lev_fieldx; x++)
8721       if (Tile[x][y] != level.field[x][y])
8722         field_changed = TRUE;
8723
8724   return (level.changed || field_changed);
8725 }
8726
8727 static boolean PrepareSavingIntoPersonalLevelSet(void)
8728 {
8729   static LevelDirTree *last_copied_leveldir = NULL;
8730   static LevelDirTree *last_written_leveldir = NULL;
8731   static int last_copied_level_nr = -1;
8732   static int last_written_level_nr = -1;
8733   LevelDirTree *leveldir_former = leveldir_current;
8734   int level_nr_former = level_nr;
8735   int new_level_nr;
8736
8737   // remember last mod/save so that for current session, we write
8738   // back to the same personal copy, asking only about overwrite.
8739   if (leveldir_current == last_copied_leveldir &&
8740       level_nr == last_copied_level_nr)
8741   {
8742     // "cd" to personal level set dir (as used when writing last copy)
8743     leveldir_current = last_written_leveldir;
8744     level_nr = last_written_level_nr;
8745
8746     return TRUE;
8747   }
8748
8749   if (!Request("This level is read-only! "
8750                "Save into personal level set?", REQ_ASK))
8751     return FALSE;
8752
8753   // "cd" to personal level set dir (for writing copy the first time)
8754   leveldir_current =
8755     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
8756
8757   // this may happen if "setup.internal.create_user_levelset" is FALSE
8758   // or if file "levelinfo.conf" is missing in personal user level set
8759   if (leveldir_current == NULL)
8760   {
8761     Request("Cannot find personal level set?!", REQ_CONFIRM);
8762
8763     leveldir_current = leveldir_former;
8764
8765     return FALSE;
8766   }
8767
8768   // find unused level number
8769   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
8770   {
8771     static char *level_filename = NULL;
8772
8773     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
8774
8775     if (!fileExists(level_filename))
8776       break;
8777   }
8778
8779   last_copied_leveldir = leveldir_former;
8780   last_copied_level_nr = level_nr_former;
8781
8782   last_written_leveldir = leveldir_current;
8783   last_written_level_nr = level_nr = new_level_nr;
8784
8785   return TRUE;
8786 }
8787
8788 static void ModifyLevelConfigForSavingIntoPersonalLevelSet(char *former_name)
8789 {
8790   static char *filename_levelinfo = NULL, *mod_name = NULL;
8791   FILE *file;
8792
8793   // annotate this copy-and-mod in personal levelinfo.conf
8794   setString(&filename_levelinfo,
8795             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
8796
8797   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
8798   {
8799     fprintf(file, "\n");
8800     fprintf(file, "# level %d was modified from:\n", level_nr);
8801     fprintf(file, "# - previous level set name:    %s\n",
8802             former_name);
8803     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
8804             level.file_info.nr, level.name);
8805     fprintf(file, "# - previous author:            %s\n",
8806             level.author);
8807     fprintf(file, "# - previous save date:         ");
8808
8809     if (level.creation_date.src == DATE_SRC_LEVELFILE)
8810     {
8811       fprintf(file, "%04d-%02d-%02d\n",
8812               level.creation_date.year,
8813               level.creation_date.month,
8814               level.creation_date.day);
8815     }
8816     else
8817     {
8818       fprintf(file, "not recorded\n");
8819     }
8820
8821     fclose(file);
8822   }
8823
8824   if (level_nr > leveldir_current->last_level)
8825     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
8826
8827   // else: allow the save even if annotation failed
8828
8829   // now... spray graffiti on the old level vital statistics
8830   // user can change these; just trying to set a good baseline
8831
8832   // don't truncate names for fear of making offensive or silly:
8833   // long-named original author only recorded in levelinfo.conf.
8834   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
8835   if (!strEqual(level.author, leveldir_current->author))
8836   {
8837     setString(&mod_name, getStringCat3(leveldir_current->author,
8838                                        " after ", level.author));
8839
8840     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8841       setString(&mod_name,
8842                 getStringCat2(leveldir_current->author, " (ed.)"));
8843
8844     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8845       setString(&mod_name, leveldir_current->author);
8846
8847     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
8848
8849     // less worried about truncation here
8850     setString(&mod_name, getStringCat2("Mod: ", level.name));
8851     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
8852   }
8853 }
8854
8855 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
8856                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
8857 {
8858   int x, y;
8859
8860   for (x = 0; x < lev_fieldx; x++)
8861     for (y = 0; y < lev_fieldy; y++)
8862       dst[x][y] = src[x][y];
8863 }
8864
8865 static int setSelectboxValue(int selectbox_id, int new_value)
8866 {
8867   int new_index_value = 0;
8868   int i;
8869
8870   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
8871     if (selectbox_info[selectbox_id].options[i].value == new_value)
8872       new_index_value = i;
8873
8874   *selectbox_info[selectbox_id].value =
8875     selectbox_info[selectbox_id].options[new_index_value].value;
8876
8877   return new_index_value;
8878 }
8879
8880 static void setSelectboxSpecialActionVariablesIfNeeded(void)
8881 {
8882   int i;
8883
8884   // change action mode and arg variables according to action type variable
8885   for (i = 0; action_arg_options[i].value != -1; i++)
8886   {
8887     if (action_arg_options[i].value == custom_element_change.action_type)
8888     {
8889       int mode = action_arg_options[i].mode;
8890
8891       // only change if corresponding selectbox has changed
8892       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
8893           action_arg_modes[mode])
8894         custom_element_change.action_mode = -1;
8895
8896       // only change if corresponding selectbox has changed
8897       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
8898           action_arg_options[i].options)
8899         custom_element_change.action_arg = -1;
8900
8901       break;
8902     }
8903   }
8904 }
8905
8906 static void setSelectboxSpecialActionOptions(void)
8907 {
8908   int i;
8909
8910   // change action mode and arg selectbox according to action type selectbox
8911   for (i = 0; action_arg_options[i].value != -1; i++)
8912   {
8913     if (action_arg_options[i].value == custom_element_change.action_type)
8914     {
8915       int mode = action_arg_options[i].mode;
8916
8917       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
8918                                    action_arg_modes[mode]);
8919       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
8920                                  custom_element_change.action_mode);
8921
8922       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
8923                                    action_arg_options[i].options);
8924       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
8925                                  custom_element_change.action_arg);
8926       break;
8927     }
8928   }
8929 }
8930
8931 static void copy_custom_element_settings(int element_from, int element_to)
8932 {
8933   struct ElementInfo *ei_from = &element_info[element_from];
8934   struct ElementInfo *ei_to = &element_info[element_to];
8935
8936   copyElementInfo(ei_from, ei_to);
8937 }
8938
8939 static void replace_custom_element_in_settings(int element_from,
8940                                                int element_to)
8941 {
8942   int i, j, x, y;
8943
8944   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8945   {
8946     struct ElementInfo *ei = &element_info[i];
8947
8948     for (y = 0; y < 3; y++)
8949       for (x = 0; x < 3; x++)
8950         if (ei->content.e[x][y] == element_from)
8951           ei->content.e[x][y] = element_to;
8952
8953     for (j = 0; j < ei->num_change_pages; j++)
8954     {
8955       struct ElementChangeInfo *change = &ei->change_page[j];
8956
8957       if (change->target_element == element_from)
8958         change->target_element = element_to;
8959
8960       if (change->initial_trigger_element == element_from)
8961         change->initial_trigger_element = element_to;
8962
8963       if (change->action_element == element_from)
8964         change->action_element = element_to;
8965
8966       for (y = 0; y < 3; y++)
8967         for (x = 0; x < 3; x++)
8968           if (change->target_content.e[x][y] == element_from)
8969             change->target_content.e[x][y] = element_to;
8970     }
8971
8972     if (ei->group != NULL)                              // group or internal
8973       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
8974         if (ei->group->element[j] == element_from)
8975           ei->group->element[j] = element_to;
8976   }
8977 }
8978
8979 static void replace_custom_element_in_playfield(int element_from,
8980                                                 int element_to)
8981 {
8982   int x, y;
8983
8984   for (x = 0; x < lev_fieldx; x++)
8985     for (y = 0; y < lev_fieldy; y++)
8986       if (Tile[x][y] == element_from)
8987         Tile[x][y] = element_to;
8988 }
8989
8990 static boolean CopyCustomElement(int element_old, int element_new,
8991                                  int copy_mode)
8992 {
8993   int copy_mode_orig = copy_mode;
8994
8995   if (copy_mode == GADGET_ID_CUSTOM_COPY)
8996   {
8997     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
8998                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
8999     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9000   }
9001   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
9002   {
9003     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
9004                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9005     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9006
9007     level.changed = TRUE;
9008   }
9009   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
9010   {
9011     Request("Please choose custom element!", REQ_CONFIRM);
9012
9013     return FALSE;
9014   }
9015   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
9016   {
9017     Request("Please choose group element!", REQ_CONFIRM);
9018
9019     return FALSE;
9020   }
9021   else if (IS_EMPTY_ELEMENT(element_old) && !IS_EMPTY_ELEMENT(element_new))
9022   {
9023     Request("Please choose empty element!", REQ_CONFIRM);
9024
9025     return FALSE;
9026   }
9027   else
9028   {
9029     level.changed = TRUE;
9030   }
9031
9032   // when modifying custom/group element, ask for copying level template
9033   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
9034   {
9035     if (!AskToCopyAndModifyLevelTemplate())
9036       return FALSE;
9037   }
9038
9039   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
9040   {
9041     copy_custom_element_settings(element_new, element_old);
9042   }
9043   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
9044   {
9045     copy_custom_element_settings(element_old, element_new);
9046   }
9047   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
9048   {
9049     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
9050     copy_custom_element_settings(element_new, element_old);
9051     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
9052
9053     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
9054     replace_custom_element_in_settings(element_new, element_old);
9055     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
9056
9057     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
9058     replace_custom_element_in_playfield(element_new, element_old);
9059     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
9060   }
9061
9062   UpdateCustomElementGraphicGadgets();
9063   DrawPropertiesWindow();
9064
9065   return TRUE;
9066 }
9067
9068 static void CopyCustomElementPropertiesToEditor(int element)
9069 {
9070   int i;
9071   int current_change_page = element_info[element].current_change_page;
9072
9073   // dynamically (re)build selectbox for selecting change page
9074   for (i = 0; i < element_info[element].num_change_pages; i++)
9075   {
9076     sprintf(options_change_page_strings[i], "%d", i + 1);
9077
9078     options_change_page[i].value = i;
9079     options_change_page[i].text = options_change_page_strings[i];
9080   }
9081
9082   options_change_page[i].value = -1;
9083   options_change_page[i].text = NULL;
9084
9085   // needed here to initialize combined element properties
9086   InitElementPropertiesEngine(level.game_version);
9087
9088   element_info[element].change =
9089     &element_info[element].change_page[current_change_page];
9090
9091   custom_element = element_info[element];
9092   custom_element_change = *element_info[element].change;
9093
9094   // needed to initially set selectbox options for special action options
9095   setSelectboxSpecialActionOptions();
9096
9097   // needed to initially set selectbox value variables to reliable defaults
9098   for (i = 0; i < ED_NUM_SELECTBOX; i++)
9099     setSelectboxValue(i, *selectbox_info[i].value);
9100
9101   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9102     custom_element_properties[i] = HAS_PROPERTY(element, i);
9103
9104   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9105     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
9106
9107   // ---------- element settings: configure (custom elements) -----------------
9108
9109   // set accessible layer selectbox help value
9110   custom_element.access_type =
9111     (IS_WALKABLE(element) ? EP_WALKABLE :
9112      IS_PASSABLE(element) ? EP_PASSABLE :
9113      custom_element.access_type);
9114   custom_element.access_layer =
9115     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
9116      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
9117      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
9118      custom_element.access_layer);
9119   custom_element.access_protected =
9120     (IS_PROTECTED(element) ? 1 : 0);
9121   custom_element_properties[EP_ACCESSIBLE] =
9122     (IS_ACCESSIBLE_OVER(element) ||
9123      IS_ACCESSIBLE_INSIDE(element) ||
9124      IS_ACCESSIBLE_UNDER(element));
9125
9126   // set walk-to-object action selectbox help value
9127   custom_element.walk_to_action =
9128     (IS_DIGGABLE(element) ? EP_DIGGABLE :
9129      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
9130      IS_DROPPABLE(element) ? EP_DROPPABLE :
9131      IS_THROWABLE(element) ? EP_THROWABLE :
9132      IS_PUSHABLE(element) ? EP_PUSHABLE :
9133      custom_element.walk_to_action);
9134   custom_element_properties[EP_WALK_TO_OBJECT] =
9135     (IS_DIGGABLE(element) ||
9136      IS_COLLECTIBLE_ONLY(element) ||
9137      IS_DROPPABLE(element) ||
9138      IS_THROWABLE(element) ||
9139      IS_PUSHABLE(element));
9140
9141   // set smash targets selectbox help value
9142   custom_element.smash_targets =
9143     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
9144      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
9145      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
9146      custom_element.smash_targets);
9147   custom_element_properties[EP_CAN_SMASH] =
9148     (CAN_SMASH_EVERYTHING(element) ||
9149      CAN_SMASH_ENEMIES(element) ||
9150      CAN_SMASH_PLAYER(element));
9151
9152   // set deadliness selectbox help value
9153   custom_element.deadliness =
9154     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
9155      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
9156      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
9157      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
9158      custom_element.deadliness);
9159   custom_element_properties[EP_DEADLY] =
9160     (DONT_TOUCH(element) ||
9161      DONT_GET_HIT_BY(element) ||
9162      DONT_COLLIDE_WITH(element) ||
9163      DONT_RUN_INTO(element));
9164
9165   // ---------- element settings: advanced (custom elements) ------------------
9166
9167   // set "change by direct action" selectbox help value
9168   custom_element_change.direct_action =
9169     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
9170      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
9171      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
9172      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
9173      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
9174      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
9175      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
9176      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
9177      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
9178      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
9179      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
9180      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
9181      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
9182      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
9183      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
9184      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
9185      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
9186      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
9187      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
9188      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
9189      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
9190      custom_element_change.direct_action);
9191
9192   // set "change by other element action" selectbox help value
9193   custom_element_change.other_action =
9194     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
9195      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
9196      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
9197      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
9198      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
9199      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
9200      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
9201      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
9202      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
9203      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
9204      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
9205      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
9206      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
9207      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
9208      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
9209      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
9210      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
9211      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
9212      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
9213      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
9214      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
9215      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
9216      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
9217      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
9218      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
9219      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
9220      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
9221      custom_element_change.other_action);
9222 }
9223
9224 static void CopyGroupElementPropertiesToEditor(int element)
9225 {
9226   group_element_info = *element_info[element].group;
9227   custom_element = element_info[element];       // needed for description
9228 }
9229
9230 static void CopyEmptyElementPropertiesToEditor(int element)
9231 {
9232   custom_element = element_info[element];
9233 }
9234
9235 static void CopyClassicElementPropertiesToEditor(int element)
9236 {
9237   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9238     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
9239       getMoveIntoAcidProperty(&level, element);
9240
9241   if (MAYBE_DONT_COLLIDE_WITH(element))
9242     custom_element_properties[EP_DONT_COLLIDE_WITH] =
9243       getDontCollideWithProperty(&level, element);
9244 }
9245
9246 static void CopyElementPropertiesToEditor(int element)
9247 {
9248   if (IS_CUSTOM_ELEMENT(element))
9249     CopyCustomElementPropertiesToEditor(element);
9250   else if (IS_GROUP_ELEMENT(element))
9251     CopyGroupElementPropertiesToEditor(element);
9252   else if (IS_EMPTY_ELEMENT(element))
9253     CopyEmptyElementPropertiesToEditor(element);
9254   else
9255     CopyClassicElementPropertiesToEditor(element);
9256 }
9257
9258 static boolean AskToCopyAndModifyLevelTemplate(void)
9259 {
9260   if (Request("Copy and modify settings from level template?", REQ_ASK))
9261   {
9262     level.use_custom_template = FALSE;
9263
9264     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
9265                  GDI_CHECKED, FALSE, GDI_END);
9266     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
9267                  GDI_CHECKED, FALSE, GDI_END);
9268
9269     return TRUE;
9270   }
9271   else
9272   {
9273     LoadLevelTemplate(-1);      // this resets all element modifications ...
9274
9275     DrawEditModeWindow();       // ... and copies them to 'custom_element'
9276
9277     return FALSE;
9278   }
9279 }
9280
9281 static void CopyCustomElementPropertiesToGame(int element)
9282 {
9283   int i;
9284   int access_type_and_layer;
9285
9286   // mark that this custom element has been modified
9287   custom_element.modified_settings = TRUE;
9288   level.changed = TRUE;
9289
9290   if (level.use_custom_template)
9291     AskToCopyAndModifyLevelTemplate();
9292
9293   element_info[element] = custom_element;
9294   *element_info[element].change = custom_element_change;
9295
9296   // ---------- element settings: configure (custom elements) -----------------
9297
9298   // set accessible property from checkbox and selectbox
9299   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
9300   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
9301   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
9302   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
9303   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
9304   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
9305   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
9306                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
9307                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
9308   custom_element_properties[access_type_and_layer] =
9309     custom_element_properties[EP_ACCESSIBLE];
9310   custom_element_properties[EP_PROTECTED] =
9311     (custom_element.access_protected != 0 &&
9312      custom_element_properties[EP_ACCESSIBLE]);
9313
9314   // set walk-to-object property from checkbox and selectbox
9315   custom_element_properties[EP_DIGGABLE] = FALSE;
9316   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
9317   custom_element_properties[EP_DROPPABLE] = FALSE;
9318   custom_element_properties[EP_THROWABLE] = FALSE;
9319   custom_element_properties[EP_PUSHABLE] = FALSE;
9320   custom_element_properties[custom_element.walk_to_action] =
9321     custom_element_properties[EP_WALK_TO_OBJECT];
9322
9323   // set smash property from checkbox and selectbox
9324   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
9325   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
9326   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
9327   custom_element_properties[custom_element.smash_targets] =
9328     custom_element_properties[EP_CAN_SMASH];
9329
9330   // set deadliness property from checkbox and selectbox
9331   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
9332   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
9333   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
9334   custom_element_properties[EP_DONT_TOUCH] = FALSE;
9335   custom_element_properties[custom_element.deadliness] =
9336     custom_element_properties[EP_DEADLY];
9337
9338   // ---------- element settings: advanced (custom elements) ------------------
9339
9340   // set player change event from checkbox and selectbox
9341   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
9342   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
9343   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
9344   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
9345   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
9346   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
9347   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
9348   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
9349   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
9350   custom_element_change_events[CE_SWITCHED] = FALSE;
9351   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
9352   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
9353   custom_element_change_events[CE_BLOCKED] = FALSE;
9354   custom_element_change_events[CE_IMPACT] = FALSE;
9355   custom_element_change_events[CE_SMASHED] = FALSE;
9356   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
9357   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
9358   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
9359   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
9360   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
9361   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
9362   custom_element_change_events[custom_element_change.direct_action] =
9363     custom_element_change_events[CE_BY_DIRECT_ACTION];
9364
9365   // set other element action change event from checkbox and selectbox
9366   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
9367   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
9368   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
9369   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
9370   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
9371   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
9372   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
9373   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
9374   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
9375   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
9376   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
9377   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
9378   custom_element_change_events[CE_TOUCHING_X] = FALSE;
9379   custom_element_change_events[CE_HITTING_X] = FALSE;
9380   custom_element_change_events[CE_DIGGING_X] = FALSE;
9381   custom_element_change_events[CE_HIT_BY_X] = FALSE;
9382   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
9383   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
9384   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
9385   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
9386   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
9387   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
9388   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
9389   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
9390   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
9391   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
9392   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
9393   custom_element_change_events[custom_element_change.other_action] =
9394     custom_element_change_events[CE_BY_OTHER_ACTION];
9395
9396   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9397     SET_PROPERTY(element, i, custom_element_properties[i]);
9398
9399   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9400     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
9401
9402   // copy change events also to special level editor variable
9403   custom_element = element_info[element];
9404   custom_element_change = *element_info[element].change;
9405
9406   // needed here to restore runtime value "element_info[element].gfx_element"
9407   InitElementPropertiesGfxElement();
9408 }
9409
9410 static void CopyGroupElementPropertiesToGame(int element)
9411 {
9412   // mark that this group element has been modified
9413   custom_element.modified_settings = TRUE;
9414   level.changed = TRUE;
9415
9416   if (level.use_custom_template)
9417     AskToCopyAndModifyLevelTemplate();
9418
9419   element_info[element] = custom_element;
9420   *element_info[element].group = group_element_info;
9421
9422   // needed here to restore runtime value "element_info[element].gfx_element"
9423   InitElementPropertiesGfxElement();
9424 }
9425
9426 static void CopyEmptyElementPropertiesToGame(int element)
9427 {
9428   // mark that this empty element has been modified
9429   custom_element.modified_settings = TRUE;
9430   level.changed = TRUE;
9431
9432   if (level.use_custom_template)
9433     AskToCopyAndModifyLevelTemplate();
9434
9435   element_info[element] = custom_element;
9436
9437   // needed here to restore runtime value "element_info[element].gfx_element"
9438   InitElementPropertiesGfxElement();
9439 }
9440
9441 static void CopyClassicElementPropertiesToGame(int element)
9442 {
9443   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9444     setMoveIntoAcidProperty(&level, element,
9445                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
9446
9447   if (MAYBE_DONT_COLLIDE_WITH(element))
9448     setDontCollideWithProperty(&level, element,
9449                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
9450 }
9451
9452 static void CopyElementPropertiesToGame(int element)
9453 {
9454   if (IS_CUSTOM_ELEMENT(element))
9455     CopyCustomElementPropertiesToGame(element);
9456   else if (IS_GROUP_ELEMENT(element))
9457     CopyGroupElementPropertiesToGame(element);
9458   else if (IS_EMPTY_ELEMENT(element))
9459     CopyEmptyElementPropertiesToGame(element);
9460   else
9461     CopyClassicElementPropertiesToGame(element);
9462 }
9463
9464 #if DEBUG
9465 static void CheckElementDescriptions(void)
9466 {
9467   int i;
9468
9469   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9470     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
9471       Warn("no element description file for element '%s'", EL_NAME(i));
9472 }
9473 #endif
9474
9475 static int getMaxEdFieldX(boolean has_scrollbar)
9476 {
9477   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
9478   int sxsize = SXSIZE - scrollbar_width;
9479   int max_ed_fieldx = sxsize / ed_tilesize;
9480
9481   return max_ed_fieldx;
9482 }
9483
9484 static int getMaxEdFieldY(boolean has_scrollbar)
9485 {
9486   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
9487                          INFOTEXT_YSIZE_FULL : 0);
9488   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
9489   int sysize = SYSIZE - scrollbar_height - infotext_height;
9490   int max_ed_fieldy = sysize / ed_tilesize;
9491
9492   return max_ed_fieldy;
9493 }
9494
9495 static void InitZoomLevelSettings(int zoom_tilesize)
9496 {
9497   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
9498
9499   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
9500   {
9501     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
9502     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
9503
9504     // make sure that tile size is always a power of 2
9505     ed_tilesize = (1 << log_2(ed_tilesize));
9506
9507     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9508     {
9509       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
9510       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
9511     }
9512   }
9513
9514   last_game_engine_type = level.game_engine_type;
9515
9516   // limit zoom tilesize by upper and lower bound
9517   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
9518
9519   // store zoom tilesize in auto setup file only if it was manually changed
9520   if (zoom_tilesize != -1)
9521     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
9522
9523   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
9524   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
9525 }
9526
9527 static void InitDrawingElements(void)
9528 {
9529   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
9530
9531   if (level.game_engine_type == game_engine_type_last)
9532     return;
9533
9534   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
9535   {
9536     new_element1 = EL_BD_WALL;
9537     new_element2 = EL_EMPTY;
9538     new_element3 = EL_BD_SAND;
9539   }
9540   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
9541   {
9542     new_element1 = EL_SP_CHIP_SINGLE;
9543     new_element2 = EL_EMPTY;
9544     new_element3 = EL_SP_BASE;
9545   }
9546   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9547   {
9548     new_element1 = EL_MM_MIRROR_START;
9549     new_element2 = EL_EMPTY;
9550     new_element3 = EL_MM_WOODEN_WALL;
9551   }
9552   else
9553   {
9554     new_element1 = EL_WALL;
9555     new_element2 = EL_EMPTY;
9556     new_element3 = EL_SAND;
9557   }
9558
9559   game_engine_type_last = level.game_engine_type;
9560 }
9561
9562 static void InitLevelSetInfo(void)
9563 {
9564   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
9565            "%s", leveldir_current->name);
9566   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
9567            "%s", leveldir_current->author);
9568
9569   levelset_num_levels = leveldir_current->levels;
9570
9571   levelset_use_levelset_artwork = FALSE;
9572   levelset_copy_level_template = FALSE;
9573
9574   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
9575 }
9576
9577 static void ChangeEditorToLevelSet(char *levelset_subdir)
9578 {
9579   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
9580
9581   // the previous level set might have used custom artwork
9582   ReloadCustomArtwork(0);
9583
9584   LoadLevelSetup_SeriesInfo();
9585
9586   SaveLevelSetup_LastSeries();
9587   SaveLevelSetup_SeriesInfo();
9588
9589   TapeErase();
9590
9591   LoadLevel(level_nr);
9592   LoadScore(level_nr);
9593
9594   DrawLevelEd();
9595 }
9596
9597 static boolean useEditorDoorAnimation(void)
9598 {
9599   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
9600   boolean door_1_viewport_unchanged =
9601     (vp_door_1->x      == DX     &&
9602      vp_door_1->y      == DY     &&
9603      vp_door_1->width  == DXSIZE &&
9604      vp_door_1->height == DYSIZE);
9605   boolean door_1_contains_toolbox =
9606     (EX >= DX &&
9607      EY >= DY &&
9608      EX + EXSIZE <= DX + DXSIZE &&
9609      EY + EYSIZE <= DY + DYSIZE);
9610
9611   return (door_1_viewport_unchanged && door_1_contains_toolbox);
9612 }
9613
9614 static void DrawEditorDoorBackground(int graphic, int x, int y,
9615                                      int width, int height)
9616 {
9617   struct GraphicInfo *g = &graphic_info[graphic];
9618
9619   if (g->bitmap != NULL)
9620     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
9621                MIN(width, g->width), MIN(height, g->height), x, y);
9622   else
9623     ClearRectangle(drawto, x, y, width, height);
9624 }
9625
9626 static void DrawEditorDoorContent(void)
9627 {
9628   // needed for gadgets drawn on background (like palette scrollbar)
9629   SetDoorBackgroundImage(IMG_UNDEFINED);
9630
9631   // copy default editor door content to main double buffer
9632   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
9633
9634   // draw bigger door
9635   DrawSpecialEditorDoor();
9636
9637   // draw new control window
9638   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
9639
9640   // draw all toolbox gadgets to editor doors
9641   MapControlButtons();
9642
9643   // when returning from test game to properties page, redraw toolbox gadgets
9644   if (edit_mode == ED_MODE_PROPERTIES)
9645   {
9646     UnmapLevelEditorToolboxDrawingGadgets();
9647     UnmapLevelEditorToolboxCustomGadgets();
9648
9649     MapLevelEditorToolboxCustomGadgetsIfNeeded();
9650   }
9651
9652   // draw all palette gadgets to editor doors
9653   ModifyEditorElementList();
9654   RedrawDrawingElements();
9655
9656   // copy actual editor door content to door double buffer for OpenDoor()
9657   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
9658 }
9659
9660 void DrawLevelEd(void)
9661 {
9662   int fade_mask = REDRAW_FIELD;
9663
9664   FadeSoundsAndMusic();
9665
9666   if (CheckFadeAll())
9667     fade_mask = REDRAW_ALL;
9668
9669   FadeOut(fade_mask);
9670
9671   // needed if different viewport properties defined for editor
9672   ChangeViewportPropertiesIfNeeded();
9673
9674   ClearField();
9675
9676   InitZoomLevelSettings(-1);
9677   InitDrawingElements();
9678   InitLevelSetInfo();
9679
9680 #if DEBUG
9681   CheckElementDescriptions();
9682 #endif
9683
9684   if (level_editor_test_game)
9685   {
9686     CopyPlayfield(level.field, Tile);
9687     CopyPlayfield(TileBackup, level.field);
9688
9689     level_editor_test_game = FALSE;
9690   }
9691   else
9692   {
9693     edit_mode = ED_MODE_DRAWING;
9694     edit_mode_levelconfig = ED_MODE_LEVELCONFIG_LEVEL;
9695     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
9696
9697     ResetUndoBuffer();
9698
9699     level_xpos = -1;
9700     level_ypos = -1;
9701   }
9702
9703   // redraw_mask |= REDRAW_ALL;
9704
9705   FreeLevelEditorGadgets();
9706   CreateLevelEditorGadgets();
9707
9708   ReinitializeElementList();            // update dynamic level element list
9709   ReinitializeElementListButtons();     // custom element may look different
9710
9711   InitElementPropertiesGfxElement();
9712
9713   UnmapAllGadgets();
9714
9715   DrawEditModeWindow_PlayfieldOnly();
9716
9717   DrawMaskedBorder(fade_mask);
9718
9719   // use door animation if door 1 viewport is unchanged and contains toolbox
9720   if (useEditorDoorAnimation())
9721   {
9722     FadeIn(fade_mask);
9723
9724     DrawEditorDoorContent();
9725
9726     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
9727   }
9728   else
9729   {
9730     DrawEditorDoorContent();
9731
9732     FadeIn(fade_mask);
9733   }
9734
9735   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
9736 }
9737
9738 static void AdjustDrawingAreaGadgets(void)
9739 {
9740   int ed_xsize = lev_fieldx + 2;
9741   int ed_ysize = lev_fieldy + 2;
9742   int max_ed_fieldx = MAX_ED_FIELDX;
9743   int max_ed_fieldy = MAX_ED_FIELDY;
9744   boolean horizontal_scrollbar_needed;
9745   boolean vertical_scrollbar_needed;
9746   int x, y, width, height;
9747
9748   if (suppressBorderElement())
9749   {
9750     ed_xsize = lev_fieldx;
9751     ed_ysize = lev_fieldy;
9752   }
9753
9754   // check if we need any scrollbars
9755   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9756   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9757
9758   // check if we have a smaller editor field because of scrollbars
9759   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9760   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9761
9762   // check again if we now need more scrollbars because of less space
9763   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9764   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9765
9766   // check if editor field gets even smaller after adding new scrollbars
9767   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9768   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9769
9770   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
9771   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
9772
9773   x = SX + ed_fieldx * ed_tilesize;
9774   y = SY + ed_fieldy * ed_tilesize;
9775
9776   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
9777   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
9778
9779   // adjust drawing area gadget
9780   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
9781                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
9782                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
9783                GDI_END);
9784
9785   // adjust horizontal scrollbar gadgets
9786   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
9787                GDI_Y, y,
9788                GDI_END);
9789   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
9790                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
9791                GDI_Y, y,
9792                GDI_END);
9793   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
9794                GDI_Y, y,
9795                GDI_WIDTH, width,
9796                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
9797                GDI_END);
9798
9799   // adjust vertical scrollbar gadgets
9800   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
9801                GDI_X, x,
9802                GDI_END);
9803   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
9804                GDI_X, x,
9805                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
9806                GDI_END);
9807   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
9808                GDI_X, x,
9809                GDI_HEIGHT, height,
9810                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
9811                GDI_END);
9812 }
9813
9814 static void AdjustLevelScrollPosition(void)
9815 {
9816   if (level_xpos < -1)
9817     level_xpos = -1;
9818   if (level_xpos > lev_fieldx - ed_fieldx + 1)
9819     level_xpos = lev_fieldx - ed_fieldx + 1;
9820   if (lev_fieldx < ed_fieldx - 2)
9821     level_xpos = -1;
9822
9823   if (level_ypos < -1)
9824     level_ypos = -1;
9825   if (level_ypos > lev_fieldy - ed_fieldy + 1)
9826     level_ypos = lev_fieldy - ed_fieldy + 1;
9827   if (lev_fieldy < ed_fieldy - 2)
9828     level_ypos = -1;
9829
9830   if (suppressBorderElement())
9831   {
9832     level_xpos = 0;
9833     level_ypos = 0;
9834   }
9835 }
9836
9837 static void AdjustEditorScrollbar(int id)
9838 {
9839   struct GadgetInfo *gi = level_editor_gadget[id];
9840   int items_max, items_visible, item_position;
9841
9842   if (id == GADGET_ID_SCROLL_HORIZONTAL)
9843   {
9844     items_max = MAX(lev_fieldx + 2, ed_fieldx);
9845     items_visible = ed_fieldx;
9846     item_position = level_xpos + 1;
9847   }
9848   else
9849   {
9850     items_max = MAX(lev_fieldy + 2, ed_fieldy);
9851     items_visible = ed_fieldy;
9852     item_position = level_ypos + 1;
9853   }
9854
9855   if (item_position > items_max - items_visible)
9856     item_position = items_max - items_visible;
9857
9858   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9859                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9860 }
9861
9862 static void AdjustElementListScrollbar(void)
9863 {
9864   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
9865   int items_max, items_visible, item_position;
9866
9867   // correct position of element list scrollbar
9868   if (element_shift < 0)
9869     element_shift = 0;
9870   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
9871     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
9872
9873   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
9874   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
9875   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
9876
9877   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9878                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
9879                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9880 }
9881
9882 static void ModifyEditorCounterValue(int counter_id, int new_value)
9883 {
9884   int *counter_value = counterbutton_info[counter_id].value;
9885   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9886   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9887
9888   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
9889
9890   if (counter_value != NULL)
9891     *counter_value = gi->textinput.number_value;
9892 }
9893
9894 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
9895 {
9896   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9897   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9898
9899   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
9900
9901   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
9902       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
9903   {
9904     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
9905     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
9906
9907     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
9908     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
9909                  GDI_END);
9910   }
9911 }
9912
9913 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
9914 {
9915   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9916   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9917   int new_index_value = setSelectboxValue(selectbox_id, new_value);
9918
9919   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
9920 }
9921
9922 static void ModifyEditorSelectboxOptions(int selectbox_id,
9923                                          struct ValueTextInfo *options)
9924 {
9925   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9926   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9927
9928   selectbox_info[selectbox_id].options = options;
9929
9930   // set index to zero -- list may be shorter now (correct later, if needed)
9931   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
9932                GDI_SELECTBOX_OPTIONS, options, GDI_END);
9933 }
9934
9935 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
9936 {
9937   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
9938   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9939
9940   drawingarea_info[drawingarea_id].area_xsize = xsize;
9941   drawingarea_info[drawingarea_id].area_ysize = ysize;
9942
9943   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
9944 }
9945
9946 static void ModifyEditorElementList(void)
9947 {
9948   int i;
9949
9950   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
9951     return;
9952
9953   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
9954   {
9955     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
9956     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9957     struct GadgetDesign *gd = &gi->deco.design;
9958     int element = editor_elements[element_shift + i];
9959     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
9960
9961     UnmapGadget(gi);
9962
9963     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
9964
9965     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
9966
9967     MapGadget(gi);
9968   }
9969 }
9970
9971 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
9972 {
9973   int graphic = el2edimg(element);
9974   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
9975
9976   if (pos->x == -1 &&
9977       pos->y == -1)
9978     return;
9979
9980   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
9981 }
9982
9983 static void ModifyDrawingElementButton(int element, int id)
9984 {
9985   struct GadgetInfo *gi = level_editor_gadget[id];
9986   Bitmap *deco_bitmap;
9987   int deco_x, deco_y;
9988   int tile_size = gi->deco.width;
9989
9990   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
9991
9992   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
9993 }
9994
9995 static void PickDrawingElement(int button, int element)
9996 {
9997   struct
9998   {
9999     int *new_element;
10000     struct XYTileSize *pos;
10001     int id;
10002   } de, drawing_elements[] =
10003   {
10004     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
10005     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
10006     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
10007   };
10008
10009   if (button < 1 || button > 3)
10010     return;
10011
10012   if (IS_MM_WALL(element))
10013     element = map_mm_wall_element(element);
10014
10015   de = drawing_elements[button - 1];
10016
10017   *de.new_element = element;    // update global drawing element variable
10018
10019   DrawDrawingElementGraphic(element, de.pos);
10020   ModifyDrawingElementButton(element, de.id);
10021
10022   redraw_mask |= REDRAW_DOOR_1;
10023 }
10024
10025 static void RedrawDrawingElements(void)
10026 {
10027   PickDrawingElement(1, new_element1);
10028   PickDrawingElement(2, new_element2);
10029   PickDrawingElement(3, new_element3);
10030 }
10031
10032 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
10033 {
10034   stick_element_properties_window = FALSE;
10035
10036   SetMainBackgroundImage(IMG_UNDEFINED);
10037   ClearField();
10038
10039   UnmapLevelEditorFieldGadgets();
10040
10041   AdjustDrawingAreaGadgets();
10042   AdjustLevelScrollPosition();
10043   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
10044   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
10045
10046   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10047
10048   MapMainDrawingArea();
10049
10050   if (remap_toolbox_gadgets)
10051   {
10052     UnmapLevelEditorToolboxCustomGadgets();
10053     MapLevelEditorToolboxDrawingGadgets();
10054   }
10055 }
10056
10057 static void DrawDrawingWindow(void)
10058 {
10059   DrawDrawingWindowExt(TRUE);
10060 }
10061
10062 static int getTabulatorBarWidth(void)
10063 {
10064   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10065   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
10066
10067   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
10068 }
10069
10070 static int getTabulatorBarHeight(void)
10071 {
10072   return ED_TAB_BAR_HEIGHT;
10073 }
10074
10075 static Pixel getTabulatorBarColor(void)
10076 {
10077   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10078   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10079   int gd_x = gd->x + gd_gi1->border.width / 2;
10080   int gd_y = gd->y + gd_gi1->height - 1;
10081
10082   return GetPixel(gd->bitmap, gd_x, gd_y);
10083 }
10084
10085 static void DrawLevelConfigTabulatorGadgets(void)
10086 {
10087   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10088   Pixel tab_color = getTabulatorBarColor();
10089   int id_first = ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL;
10090   int id_last  = ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR;
10091   int i;
10092
10093   // draw additional "engine" tabulator when using native BD engine
10094   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
10095     id_last = ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE;
10096
10097   for (i = id_first; i <= id_last; i++)
10098   {
10099     int gadget_id = textbutton_info[i].gadget_id;
10100     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10101     boolean active = (i != edit_mode_levelconfig);
10102
10103     // draw background line below tabulator button
10104     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10105
10106     // draw solid line below inactive tabulator buttons
10107     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10108       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10109                     ED_GADGET_TINY_DISTANCE, tab_color);
10110
10111     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10112     MapTextbuttonGadget(i);
10113   }
10114
10115   // draw little border line below tabulator buttons
10116   if (tab_color != BLACK_PIXEL)                 // black => transparent
10117     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10118                   ED_GADGET_TINY_DISTANCE,
10119                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10120 }
10121
10122 static void DrawPropertiesTabulatorGadgets(void)
10123 {
10124   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10125   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10126   int gd_x = gd->x + gd_gi1->border.width / 2;
10127   int gd_y = gd->y + gd_gi1->height - 1;
10128   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10129   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
10130   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
10131   int i;
10132
10133   // draw two config tabulators for player elements
10134   if (IS_PLAYER_ELEMENT(properties_element))
10135     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
10136
10137   // draw two config and one "change" tabulator for custom elements
10138   if (IS_CUSTOM_ELEMENT(properties_element))
10139     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
10140
10141   for (i = id_first; i <= id_last; i++)
10142   {
10143     int gadget_id = textbutton_info[i].gadget_id;
10144     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10145     boolean active = (i != edit_mode_properties);
10146
10147     // use "config 1" and "config 2" instead of "config" for players and CEs
10148     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
10149         (IS_PLAYER_ELEMENT(properties_element) ||
10150          IS_CUSTOM_ELEMENT(properties_element)))
10151       continue;
10152
10153     // draw background line below tabulator button
10154     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10155
10156     // draw solid line below inactive tabulator buttons
10157     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10158       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10159                     ED_GADGET_TINY_DISTANCE, tab_color);
10160
10161     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10162     MapTextbuttonGadget(i);
10163   }
10164
10165   // draw little border line below tabulator buttons
10166   if (tab_color != BLACK_PIXEL)                 // black => transparent
10167     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10168                   ED_GADGET_TINY_DISTANCE,
10169                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10170 }
10171
10172 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
10173 {
10174   DrawText(SX + xpos, SY + ypos, text, font_nr);
10175 }
10176
10177 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
10178                                            int xpos, int ypos)
10179 {
10180   int font_width = getFontWidth(font_nr);
10181   int font_height = getFontHeight(font_nr);
10182   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
10183   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
10184
10185   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
10186                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
10187                       TRUE, FALSE, FALSE);
10188 }
10189
10190 static void DrawLevelConfigLevel(void)
10191 {
10192   int i;
10193
10194   // draw counter gadgets
10195   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
10196     MapCounterButtons(i);
10197
10198   // draw checkbutton gadgets
10199   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
10200     MapCheckbuttonGadget(i);
10201
10202   // draw selectbox gadgets
10203   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
10204     MapSelectboxGadget(i);
10205
10206   // draw text input gadgets
10207   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
10208     MapTextInputGadget(i);
10209 }
10210
10211 static char *getLevelSubdirFromSaveMode(int save_mode)
10212 {
10213   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
10214     return getNewUserLevelSubdir();
10215
10216   return leveldir_current->subdir;
10217 }
10218
10219 static void DrawLevelConfigLevelSet_DirectoryInfo(void)
10220 {
10221   char *directory_text = "Level set directory:";
10222   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
10223   int font1_nr = FONT_TEXT_1;
10224   int font2_nr = FONT_TEXT_2;
10225   int font1_height = getFontHeight(font1_nr);
10226   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
10227   int x = ED_LEVEL_SETTINGS_X(0);
10228   int y = ED_LEVEL_SETTINGS_Y(6);
10229
10230   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
10231   PrintInfoText(directory_name, font2_nr, x, y);
10232 }
10233
10234 static void DrawLevelConfigLevelSet(void)
10235 {
10236   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
10237   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
10238   int i;
10239
10240   // draw counter gadgets
10241   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
10242     MapCounterButtons(i);
10243
10244   // draw checkbutton gadgets
10245   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
10246   {
10247     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
10248         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
10249         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
10250       continue;
10251
10252     MapCheckbuttonGadget(i);
10253   }
10254
10255   // draw selectbox gadgets
10256   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
10257     MapSelectboxGadget(i);
10258
10259   // draw text input gadgets
10260   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
10261     MapTextInputGadget(i);
10262
10263   // draw textbutton gadgets
10264   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
10265
10266   // draw info text
10267   DrawLevelConfigLevelSet_DirectoryInfo();
10268 }
10269
10270 static void DrawLevelConfigEditor(void)
10271 {
10272   int i;
10273
10274   // draw counter gadgets
10275   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
10276     MapCounterButtons(i);
10277
10278   // draw checkbutton gadgets
10279   for (i = ED_CHECKBUTTON_ID_EDITOR_FIRST; i <= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
10280     MapCheckbuttonGadget(i);
10281
10282   // draw radiobutton gadgets
10283   for (i = ED_RADIOBUTTON_ID_EDITOR_FIRST; i <= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
10284     MapRadiobuttonGadget(i);
10285
10286   // draw drawing area
10287   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
10288
10289   // draw textbutton gadgets
10290   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
10291 }
10292
10293 static void DrawLevelConfigEngine(void)
10294 {
10295   int i;
10296
10297   // draw counter gadgets
10298   if (level.bd_scheduling_type == GD_SCHEDULING_MILLISECONDS)
10299   {
10300     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_MS);
10301     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES);
10302   }
10303   else
10304   {
10305     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_C64);
10306     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS);
10307   }
10308
10309   // draw checkbutton gadgets
10310   for (i = ED_CHECKBUTTON_ID_ENGINE_FIRST; i <= ED_CHECKBUTTON_ID_ENGINE_LAST; i++)
10311     MapCheckbuttonGadget(i);
10312
10313   // draw selectbox gadgets
10314   for (i = ED_SELECTBOX_ID_ENGINE_FIRST; i <= ED_SELECTBOX_ID_ENGINE_LAST; i++)
10315     MapSelectboxGadget(i);
10316 }
10317
10318 static void DrawLevelConfigWindow(void)
10319 {
10320   char *text = "Global Settings";
10321   int font_nr = FONT_TITLE_1;
10322   struct MenuPosInfo *pos = &editor.settings.headline;
10323   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
10324   int sy = SY + pos->y;
10325
10326   stick_element_properties_window = FALSE;
10327
10328   SetAutomaticNumberOfGemsNeeded();
10329
10330   UnmapLevelEditorFieldGadgets();
10331
10332   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10333   ClearField();
10334
10335   DrawText(sx, sy, text, font_nr);
10336
10337   DrawLevelConfigTabulatorGadgets();
10338
10339   if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVEL)
10340     DrawLevelConfigLevel();
10341   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVELSET)
10342     DrawLevelConfigLevelSet();
10343   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_EDITOR)
10344     DrawLevelConfigEditor();
10345   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_ENGINE)
10346     DrawLevelConfigEngine();
10347 }
10348
10349 static void DrawCustomContentArea(void)
10350 {
10351   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
10352   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10353   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
10354   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
10355   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
10356   int xoffset = ED_GADGET_SPACE_DISTANCE;
10357
10358   // add distance for potential left text (without drawing area border)
10359   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
10360
10361   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10362
10363   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
10364 }
10365
10366 static void DrawCustomChangeContentArea(void)
10367 {
10368   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
10369   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10370   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
10371   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
10372   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
10373   int xoffset = ED_GADGET_SPACE_DISTANCE;
10374
10375   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10376
10377   MapDrawingArea(id);
10378 }
10379
10380 static void RemoveElementContentArea(int id, int font_height)
10381 {
10382   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10383
10384   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
10385                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
10386                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10387                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
10388                  ED_GADGET_TEXT_DISTANCE + font_height);
10389 }
10390
10391 static void DrawYamYamContentAreas(void)
10392 {
10393   int font_nr = FONT_TEXT_1;
10394   int font_height = getFontHeight(font_nr);
10395   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10396   int yoffset = (tilesize - font_height) / 2;
10397   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
10398   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
10399   int i;
10400
10401   // display counter to choose number of element content areas
10402   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
10403
10404   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10405   {
10406     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
10407
10408     if (i < level.num_yamyam_contents)
10409     {
10410       MapDrawingArea(id);
10411     }
10412     else
10413     {
10414       UnmapDrawingArea(id);
10415
10416       // delete content areas in case of reducing number of them
10417       RemoveElementContentArea(id, font_height);
10418     }
10419   }
10420
10421   DrawText(x, y + 0 * tilesize, "content", font_nr);
10422   DrawText(x, y + 1 * tilesize, "when",    font_nr);
10423   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
10424 }
10425
10426 static void DrawMagicBallContentAreas(void)
10427 {
10428   int font_nr = FONT_TEXT_1;
10429   int font_height = getFontHeight(font_nr);
10430   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10431   int yoffset = (tilesize - font_height) / 2;
10432   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
10433   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
10434   int i;
10435
10436   // display counter to choose number of element content areas
10437   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
10438
10439   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10440   {
10441     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
10442
10443     if (i < level.num_ball_contents)
10444     {
10445       MapDrawingArea(id);
10446     }
10447     else
10448     {
10449       UnmapDrawingArea(id);
10450
10451       // delete content areas in case of reducing number of them
10452       RemoveElementContentArea(id, font_height);
10453     }
10454   }
10455
10456   DrawText(x, y + 0 * tilesize, "generated", font_nr);
10457   DrawText(x, y + 1 * tilesize, "when",      font_nr);
10458   DrawText(x, y + 2 * tilesize, "active",    font_nr);
10459 }
10460
10461 static void DrawAndroidElementArea(void)
10462 {
10463   int id = ED_DRAWING_ID_ANDROID_CONTENT;
10464   int num_elements = level.num_android_clone_elements;
10465   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10466   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10467   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10468   int xsize = MAX_ANDROID_ELEMENTS;
10469   int ysize = 1;
10470
10471   // display counter to choose number of element areas
10472   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
10473
10474   if (drawingarea_info[id].text_left != NULL)
10475     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10476
10477   UnmapDrawingArea(id);
10478
10479   ModifyEditorDrawingArea(id, num_elements, 1);
10480
10481   // delete content areas in case of reducing number of them
10482   DrawBackground(sx, sy,
10483                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10484                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10485
10486   MapDrawingArea(id);
10487 }
10488
10489 static void DrawGroupElementArea(void)
10490 {
10491   int id = ED_DRAWING_ID_GROUP_CONTENT;
10492   int num_elements = group_element_info.num_elements;
10493   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10494   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10495   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10496   int xsize = MAX_ELEMENTS_IN_GROUP;
10497   int ysize = 1;
10498
10499   if (drawingarea_info[id].text_left != NULL)
10500     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10501
10502   UnmapDrawingArea(id);
10503
10504   ModifyEditorDrawingArea(id, num_elements, 1);
10505
10506   // delete content areas in case of reducing number of them
10507   DrawBackground(sx, sy,
10508                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10509                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10510
10511   MapDrawingArea(id);
10512 }
10513
10514 static void DrawPlayerInitialInventoryArea(int element)
10515 {
10516   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
10517   int player_nr = GET_PLAYER_NR(element);
10518   int num_elements = level.initial_inventory_size[player_nr];
10519   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10520   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10521   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10522   int xsize = MAX_INITIAL_INVENTORY_SIZE;
10523   int ysize = 1;
10524
10525   // determine horizontal position to the right of specified gadget
10526   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
10527     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
10528           ED_DRAWINGAREA_TEXT_DISTANCE);
10529
10530   // determine horizontal offset for leading text
10531   if (drawingarea_info[id].text_left != NULL)
10532     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10533
10534   UnmapDrawingArea(id);
10535
10536   ModifyEditorDrawingArea(id, num_elements, 1);
10537
10538   // delete content areas in case of reducing number of them
10539   DrawBackground(sx, sy,
10540                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10541                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10542
10543   MapDrawingArea(id);
10544 }
10545
10546 static void DrawMMBallContentArea(void)
10547 {
10548   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
10549   int num_elements = level.num_mm_ball_contents;
10550   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10551   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10552   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10553   int xsize = MAX_MM_BALL_CONTENTS;
10554   int ysize = 1;
10555
10556   if (drawingarea_info[id].text_left != NULL)
10557     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10558
10559   UnmapDrawingArea(id);
10560
10561   ModifyEditorDrawingArea(id, num_elements, 1);
10562
10563   // delete content areas in case of reducing number of them
10564   DrawBackground(sx, sy,
10565                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10566                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10567
10568   MapDrawingArea(id);
10569 }
10570
10571 static void DrawEnvelopeTextArea(int envelope_nr)
10572 {
10573   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
10574   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
10575
10576   UnmapGadget(gi);
10577
10578   DrawBackground(gi->x, gi->y,
10579                  gi->textarea.crop_width, gi->textarea.crop_height);
10580
10581   if (envelope_nr != -1)
10582     textarea_info[id].value = level.envelope[envelope_nr].text;
10583
10584   ModifyGadget(gi, GDI_AREA_SIZE,
10585                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
10586                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
10587                GDI_END);
10588
10589   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
10590 }
10591
10592 static void DrawPropertiesInfo(void)
10593 {
10594   static struct
10595   {
10596     int value;
10597     char *text;
10598   }
10599   properties[] =
10600   {
10601     // configurable properties
10602
10603     { EP_WALKABLE_OVER,         "- player can walk over it"             },
10604     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
10605     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
10606     { EP_PASSABLE_OVER,         "- player can pass over it"             },
10607     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
10608     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
10609     { EP_PROTECTED,             "- player is protected by it"           },
10610
10611     { EP_DIGGABLE,              "- can be digged away"                  },
10612     { EP_COLLECTIBLE,           "- can be collected"                    },
10613     { EP_DROPPABLE,             "- can be dropped after collecting"     },
10614     { EP_THROWABLE,             "- can be thrown after collecting"      },
10615     { EP_PUSHABLE,              "- can be pushed"                       },
10616
10617     { EP_CAN_FALL,              "- can fall"                            },
10618     { EP_CAN_MOVE,              "- can move"                            },
10619
10620     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
10621 #if 0
10622     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
10623 #endif
10624     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
10625
10626     { EP_SLIPPERY,              "- slippery for falling elements"       },
10627     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
10628
10629     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
10630     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
10631     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
10632     { EP_DONT_TOUCH,            "- deadly when touching"                },
10633
10634     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
10635
10636     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
10637     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
10638     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
10639
10640     { EP_CAN_CHANGE,            "- can change to other element"         },
10641
10642     // pre-defined properties
10643     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
10644     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
10645     { EP_SWITCHABLE,            "- can be switched"                     },
10646 #if 0
10647     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
10648 #endif
10649
10650     { -1,                       NULL                                    }
10651   };
10652   char *filename = getElementDescriptionFilename(properties_element);
10653   char *num_elements_text = "In this level: ";
10654   char *num_similar_text = "Similar tiles: ";
10655   char *properties_text = "Standard properties: ";
10656   char *description_text = "Description:";
10657   char *no_description_text = "No description available.";
10658   char *none_text = "None";
10659   float percentage;
10660   int num_elements_in_level = 0;
10661   int num_similar_in_level = 0;
10662   int num_hires_tiles_in_level = 0;
10663   int num_standard_properties = 0;
10664   int font1_nr = FONT_TEXT_1;
10665   int font2_nr = FONT_TEXT_2;
10666   int font1_width = getFontWidth(font1_nr);
10667   int font1_height = getFontHeight(font1_nr);
10668   int font2_height = getFontHeight(font2_nr);
10669   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
10670   int font2_yoffset = (font1_height - font2_height) / 2;
10671   int num_elements_text_len = strlen(num_elements_text) * font1_width;
10672   int num_similar_text_len = strlen(num_similar_text) * font1_width;
10673   int properties_text_len = strlen(properties_text) * font1_width;
10674   int xpos = ED_ELEMENT_SETTINGS_X(0);
10675   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10676   int i, x, y;
10677
10678   if (setup.editor.show_element_token)
10679   {
10680     int font3_nr = FONT_TEXT_3;
10681     int font3_height = getFontHeight(font3_nr);
10682
10683     DrawTextF(xpos, ypos, font3_nr,
10684               "[%s]", element_info[properties_element].token_name);
10685
10686     ypos += 2 * font3_height;
10687   }
10688
10689   // ----- print number of elements / percentage of this element in level
10690
10691   for (y = 0; y < lev_fieldy; y++)
10692   {
10693     for (x = 0; x < lev_fieldx; x++)
10694     {
10695       if (Tile[x][y] == properties_element)
10696       {
10697         num_elements_in_level++;
10698       }
10699       else if (IS_MM_WALL(Tile[x][y]) &&
10700                map_mm_wall_element(Tile[x][y]) == properties_element)
10701       {
10702         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
10703       }
10704     }
10705   }
10706
10707   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10708
10709   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
10710
10711   if (num_hires_tiles_in_level > 0)
10712     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10713               "%d wall tiles", num_hires_tiles_in_level);
10714   else if (num_elements_in_level > 0)
10715     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10716               "%d (%.2f %%)", num_elements_in_level, percentage);
10717   else
10718     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10719               none_text);
10720
10721   // ----- print number of similar elements / percentage of them in level
10722
10723   for (y = 0; y < lev_fieldy; y++)
10724   {
10725     for (x = 0; x < lev_fieldx; x++)
10726     {
10727       if (strEqual(element_info[Tile[x][y]].class_name,
10728                    element_info[properties_element].class_name))
10729       {
10730         num_similar_in_level++;
10731       }
10732     }
10733   }
10734
10735   if (num_similar_in_level != num_elements_in_level)
10736   {
10737     ypos += 1 * MAX(font1_height, font2_height);
10738
10739     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10740
10741     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
10742
10743     if (num_similar_in_level > 0)
10744       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10745                 "%d (%.2f %%)", num_similar_in_level, percentage);
10746     else
10747       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10748                 none_text);
10749   }
10750
10751   ypos += 2 * MAX(font1_height, font2_height);
10752
10753   // ----- print standard properties of this element
10754
10755   DrawTextS(xpos, ypos, font1_nr, properties_text);
10756
10757   ypos += line1_height;
10758
10759   for (i = 0; properties[i].value != -1; i++)
10760   {
10761     if (!HAS_PROPERTY(properties_element, properties[i].value))
10762       continue;
10763
10764     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
10765
10766     ypos += font2_height;
10767
10768     num_standard_properties++;
10769   }
10770
10771   if (num_standard_properties == 0)
10772   {
10773     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
10774               font2_nr, none_text);
10775
10776     ypos -= (line1_height - font1_height);
10777   }
10778
10779   ypos += MAX(font1_height, font2_height);
10780
10781   // ----- print special description of this element
10782
10783   PrintInfoText(description_text, font1_nr, xpos, ypos);
10784
10785   ypos += line1_height;
10786
10787   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
10788     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
10789 }
10790
10791 #define TEXT_COLLECTING         "Score for collecting"
10792 #define TEXT_COLLECTING_EXTRA   "Score for extra diamonds"
10793 #define TEXT_SMASHING           "Score for smashing"
10794 #define TEXT_SLURPING           "Score for slurping robot"
10795 #define TEXT_CRACKING           "Score for cracking"
10796 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
10797 #define TEXT_AMOEBA_THRESHOED   "Size for turning to rocks"
10798 #define TEXT_AMOEBA_SLOW_TIME   "Slow growth time (seconds)"
10799 #define TEXT_AMOEBA_SLOW_RATE   "Slow growth rate (percent)"
10800 #define TEXT_AMOEBA_FAST_RATE   "Fast growth rate (percent)"
10801 #define TEXT_DURATION           "Duration when activated"
10802 #define TEXT_DELAY_ON           "Delay before activating"
10803 #define TEXT_DELAY_OFF          "Delay before deactivating"
10804 #define TEXT_DELAY_CHANGING     "Delay before changing"
10805 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
10806 #define TEXT_DELAY_MOVING       "Delay before moving"
10807 #define TEXT_BALL_DELAY         "Element generation delay"
10808 #define TEXT_MOVE_SPEED         "Speed of android moving"
10809 #define TEXT_CLONE_SPEED        "Speed of android cloning"
10810 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
10811 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
10812 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
10813 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
10814 #define TEXT_TIME_BONUS         "Extra time to solve level"
10815
10816 static struct
10817 {
10818   int element;
10819   int *value;
10820   char *text;
10821 } elements_with_counter[] =
10822 {
10823   { EL_EMERALD,                 &level.score[SC_EMERALD],       TEXT_COLLECTING         },
10824   { EL_BD_DIAMOND,              &level.score[SC_EMERALD],       TEXT_COLLECTING         },
10825   { EL_BD_DIAMOND,              &level.score[SC_DIAMOND_EXTRA], TEXT_COLLECTING_EXTRA   },
10826   { EL_EMERALD_YELLOW,          &level.score[SC_EMERALD],       TEXT_COLLECTING         },
10827   { EL_EMERALD_RED,             &level.score[SC_EMERALD],       TEXT_COLLECTING         },
10828   { EL_EMERALD_PURPLE,          &level.score[SC_EMERALD],       TEXT_COLLECTING         },
10829   { EL_SP_INFOTRON,             &level.score[SC_EMERALD],       TEXT_COLLECTING         },
10830   { EL_DIAMOND,                 &level.score[SC_DIAMOND],       TEXT_COLLECTING         },
10831   { EL_CRYSTAL,                 &level.score[SC_CRYSTAL],       TEXT_COLLECTING         },
10832   { EL_PEARL,                   &level.score[SC_PEARL],         TEXT_COLLECTING         },
10833   { EL_BUG,                     &level.score[SC_BUG],           TEXT_SMASHING           },
10834   { EL_BUG_RIGHT,               &level.score[SC_BUG],           TEXT_SMASHING           },
10835   { EL_BUG_UP,                  &level.score[SC_BUG],           TEXT_SMASHING           },
10836   { EL_BUG_LEFT,                &level.score[SC_BUG],           TEXT_SMASHING           },
10837   { EL_BUG_DOWN,                &level.score[SC_BUG],           TEXT_SMASHING           },
10838   { EL_BD_BUTTERFLY,            &level.score[SC_BUG],           TEXT_SMASHING           },
10839   { EL_BD_BUTTERFLY_RIGHT,      &level.score[SC_BUG],           TEXT_SMASHING           },
10840   { EL_BD_BUTTERFLY_UP,         &level.score[SC_BUG],           TEXT_SMASHING           },
10841   { EL_BD_BUTTERFLY_LEFT,       &level.score[SC_BUG],           TEXT_SMASHING           },
10842   { EL_BD_BUTTERFLY_DOWN,       &level.score[SC_BUG],           TEXT_SMASHING           },
10843   { EL_SP_ELECTRON,             &level.score[SC_BUG],           TEXT_SMASHING           },
10844   { EL_SPACESHIP,               &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10845   { EL_SPACESHIP_RIGHT,         &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10846   { EL_SPACESHIP_UP,            &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10847   { EL_SPACESHIP_LEFT,          &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10848   { EL_SPACESHIP_DOWN,          &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10849   { EL_BD_FIREFLY,              &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10850   { EL_BD_FIREFLY_RIGHT,        &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10851   { EL_BD_FIREFLY_UP,           &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10852   { EL_BD_FIREFLY_LEFT,         &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10853   { EL_BD_FIREFLY_DOWN,         &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10854   { EL_SP_SNIKSNAK,             &level.score[SC_SPACESHIP],     TEXT_SMASHING           },
10855   { EL_YAMYAM,                  &level.score[SC_YAMYAM],        TEXT_SMASHING           },
10856   { EL_YAMYAM_LEFT,             &level.score[SC_YAMYAM],        TEXT_SMASHING           },
10857   { EL_YAMYAM_RIGHT,            &level.score[SC_YAMYAM],        TEXT_SMASHING           },
10858   { EL_YAMYAM_UP,               &level.score[SC_YAMYAM],        TEXT_SMASHING           },
10859   { EL_YAMYAM_DOWN,             &level.score[SC_YAMYAM],        TEXT_SMASHING           },
10860   { EL_DARK_YAMYAM,             &level.score[SC_YAMYAM],        TEXT_SMASHING           },
10861   { EL_ROBOT,                   &level.score[SC_ROBOT],         TEXT_SMASHING           },
10862   { EL_PACMAN,                  &level.score[SC_PACMAN],        TEXT_SMASHING           },
10863   { EL_PACMAN_RIGHT,            &level.score[SC_PACMAN],        TEXT_SMASHING           },
10864   { EL_PACMAN_UP,               &level.score[SC_PACMAN],        TEXT_SMASHING           },
10865   { EL_PACMAN_LEFT,             &level.score[SC_PACMAN],        TEXT_SMASHING           },
10866   { EL_PACMAN_DOWN,             &level.score[SC_PACMAN],        TEXT_SMASHING           },
10867   { EL_NUT,                     &level.score[SC_NUT],           TEXT_CRACKING           },
10868   { EL_DYNAMITE,                &level.score[SC_DYNAMITE],      TEXT_COLLECTING         },
10869   { EL_EM_DYNAMITE,             &level.score[SC_DYNAMITE],      TEXT_COLLECTING         },
10870   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],      TEXT_COLLECTING         },
10871   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],      TEXT_COLLECTING         },
10872   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],      TEXT_COLLECTING         },
10873   { EL_SHIELD_NORMAL,           &level.score[SC_SHIELD],        TEXT_COLLECTING         },
10874   { EL_SHIELD_DEADLY,           &level.score[SC_SHIELD],        TEXT_COLLECTING         },
10875   { EL_EXTRA_TIME,              &level.extra_time_score,        TEXT_COLLECTING         },
10876   { EL_KEY_1,                   &level.score[SC_KEY],           TEXT_COLLECTING         },
10877   { EL_KEY_2,                   &level.score[SC_KEY],           TEXT_COLLECTING         },
10878   { EL_KEY_3,                   &level.score[SC_KEY],           TEXT_COLLECTING         },
10879   { EL_KEY_4,                   &level.score[SC_KEY],           TEXT_COLLECTING         },
10880   { EL_EM_KEY_1,                &level.score[SC_KEY],           TEXT_COLLECTING         },
10881   { EL_EM_KEY_2,                &level.score[SC_KEY],           TEXT_COLLECTING         },
10882   { EL_EM_KEY_3,                &level.score[SC_KEY],           TEXT_COLLECTING         },
10883   { EL_EM_KEY_4,                &level.score[SC_KEY],           TEXT_COLLECTING         },
10884   { EL_EMC_KEY_5,               &level.score[SC_KEY],           TEXT_COLLECTING         },
10885   { EL_EMC_KEY_6,               &level.score[SC_KEY],           TEXT_COLLECTING         },
10886   { EL_EMC_KEY_7,               &level.score[SC_KEY],           TEXT_COLLECTING         },
10887   { EL_EMC_KEY_8,               &level.score[SC_KEY],           TEXT_COLLECTING         },
10888   { EL_DC_KEY_WHITE,            &level.score[SC_KEY],           TEXT_COLLECTING         },
10889   { EL_MM_KETTLE,               &level.score[SC_EMERALD],       TEXT_COLLECTING         },
10890   { EL_DF_CELL,                 &level.score[SC_EMERALD],       TEXT_COLLECTING         },
10891   { EL_MM_KEY,                  &level.score[SC_KEY],           TEXT_COLLECTING         },
10892   { EL_MM_LIGHTBALL,            &level.score[SC_ELEM_BONUS],    TEXT_COLLECTING         },
10893   { EL_MM_PACMAN,               &level.score[SC_PACMAN],        TEXT_SMASHING           },
10894   { EL_MM_PACMAN_RIGHT,         &level.score[SC_PACMAN],        TEXT_SMASHING           },
10895   { EL_MM_PACMAN_UP,            &level.score[SC_PACMAN],        TEXT_SMASHING           },
10896   { EL_MM_PACMAN_LEFT,          &level.score[SC_PACMAN],        TEXT_SMASHING           },
10897   { EL_MM_PACMAN_DOWN,          &level.score[SC_PACMAN],        TEXT_SMASHING           },
10898   { EL_AMOEBA_WET,              &level.amoeba_speed,            TEXT_AMOEBA_SPEED       },
10899   { EL_AMOEBA_DRY,              &level.amoeba_speed,            TEXT_AMOEBA_SPEED       },
10900   { EL_AMOEBA_FULL,             &level.amoeba_speed,            TEXT_AMOEBA_SPEED       },
10901   { EL_BD_AMOEBA,               &level.amoeba_speed,            TEXT_AMOEBA_SPEED       },
10902   { EL_EMC_DRIPPER,             &level.amoeba_speed,            TEXT_AMOEBA_SPEED       },
10903   { EL_BD_AMOEBA,               &level.bd_amoeba_threshold_too_big,     TEXT_AMOEBA_THRESHOED   },
10904   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_time,      TEXT_AMOEBA_SLOW_TIME   },
10905   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_rate,      TEXT_AMOEBA_SLOW_RATE   },
10906   { EL_BD_AMOEBA,               &level.bd_amoeba_fast_growth_rate,      TEXT_AMOEBA_FAST_RATE   },
10907   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_threshold_too_big,   TEXT_AMOEBA_THRESHOED   },
10908   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_time,    TEXT_AMOEBA_SLOW_TIME   },
10909   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_rate,    TEXT_AMOEBA_SLOW_RATE   },
10910   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_fast_growth_rate,    TEXT_AMOEBA_FAST_RATE   },
10911   { EL_MAGIC_WALL,              &level.time_magic_wall,         TEXT_DURATION           },
10912   { EL_BD_MAGIC_WALL,           &level.time_magic_wall,         TEXT_DURATION           },
10913   { EL_DC_MAGIC_WALL,           &level.time_magic_wall,         TEXT_DURATION           },
10914   { EL_ROBOT_WHEEL,             &level.time_wheel,              TEXT_DURATION           },
10915   { EL_TIMEGATE_SWITCH,         &level.time_timegate,           TEXT_DURATION           },
10916   { EL_DC_TIMEGATE_SWITCH,      &level.time_timegate,           TEXT_DURATION           },
10917   { EL_LIGHT_SWITCH,            &level.time_light,              TEXT_DURATION           },
10918   { EL_LIGHT_SWITCH_ACTIVE,     &level.time_light,              TEXT_DURATION           },
10919   { EL_SHIELD_NORMAL,           &level.shield_normal_time,      TEXT_DURATION           },
10920   { EL_SHIELD_DEADLY,           &level.shield_deadly_time,      TEXT_DURATION           },
10921   { EL_EXTRA_TIME,              &level.extra_time,              TEXT_TIME_BONUS         },
10922   { EL_TIME_ORB_FULL,           &level.time_orb_time,           TEXT_TIME_BONUS         },
10923   { EL_GAME_OF_LIFE,            &level.game_of_life[0],         TEXT_GAME_OF_LIFE_1     },
10924   { EL_GAME_OF_LIFE,            &level.game_of_life[1],         TEXT_GAME_OF_LIFE_2     },
10925   { EL_GAME_OF_LIFE,            &level.game_of_life[2],         TEXT_GAME_OF_LIFE_3     },
10926   { EL_GAME_OF_LIFE,            &level.game_of_life[3],         TEXT_GAME_OF_LIFE_4     },
10927   { EL_BIOMAZE,                 &level.biomaze[0],              TEXT_GAME_OF_LIFE_1     },
10928   { EL_BIOMAZE,                 &level.biomaze[1],              TEXT_GAME_OF_LIFE_2     },
10929   { EL_BIOMAZE,                 &level.biomaze[2],              TEXT_GAME_OF_LIFE_3     },
10930   { EL_BIOMAZE,                 &level.biomaze[3],              TEXT_GAME_OF_LIFE_4     },
10931   { EL_EMC_ANDROID,             &level.android_move_time,       TEXT_MOVE_SPEED         },
10932   { EL_EMC_ANDROID,             &level.android_clone_time,      TEXT_CLONE_SPEED        },
10933   { EL_EMC_MAGIC_BALL,          &level.ball_time,               TEXT_BALL_DELAY         },
10934   { EL_EMC_LENSES,              &level.lenses_score,            TEXT_COLLECTING         },
10935   { EL_EMC_MAGNIFIER,           &level.magnify_score,           TEXT_COLLECTING         },
10936   { EL_SPRING,                  &level.slurp_score,             TEXT_SLURPING           },
10937   { EL_SPRING_LEFT,             &level.slurp_score,             TEXT_SLURPING           },
10938   { EL_SPRING_RIGHT,            &level.slurp_score,             TEXT_SLURPING           },
10939   { EL_EMC_LENSES,              &level.lenses_time,             TEXT_DURATION           },
10940   { EL_EMC_MAGNIFIER,           &level.magnify_time,            TEXT_DURATION           },
10941   { EL_MM_FUSE_ACTIVE,          &level.mm_time_fuse,            TEXT_DELAY_OFF          },
10942   { EL_MM_BOMB,                 &level.mm_time_bomb,            TEXT_DELAY_EXPLODING    },
10943   { EL_MM_GRAY_BALL,            &level.mm_time_ball,            TEXT_DELAY_CHANGING     },
10944   { EL_MM_STEEL_BLOCK,          &level.mm_time_block,           TEXT_DELAY_MOVING       },
10945   { EL_MM_WOODEN_BLOCK,         &level.mm_time_block,           TEXT_DELAY_MOVING       },
10946
10947   { -1,                         NULL,                           NULL                    }
10948 };
10949
10950 static boolean checkPropertiesConfig(int element)
10951 {
10952   int i;
10953
10954   // special case: empty space customization only available in R'n'D game engine
10955   if (element == EL_EMPTY_SPACE && level.game_engine_type != GAME_ENGINE_TYPE_RND)
10956     return FALSE;
10957
10958   // special case: BD style rock customization only available in BD game engine
10959   if (element == EL_BD_ROCK && level.game_engine_type != GAME_ENGINE_TYPE_BD)
10960     return FALSE;
10961
10962   if (IS_GEM(element) ||
10963       IS_CUSTOM_ELEMENT(element) ||
10964       IS_GROUP_ELEMENT(element) ||
10965       IS_EMPTY_ELEMENT(element) ||
10966       IS_BALLOON_ELEMENT(element) ||
10967       IS_ENVELOPE(element) ||
10968       IS_MM_ENVELOPE(element) ||
10969       IS_MM_MCDUFFIN(element) ||
10970       IS_DF_LASER(element) ||
10971       IS_PLAYER_ELEMENT(element) ||
10972       IS_BD_PLAYER_ELEMENT(element) ||
10973       IS_SOKOBAN_OBJECT_OR_FIELD(element) ||
10974       HAS_EDITOR_CONTENT(element) ||
10975       CAN_GROW(element) ||
10976       COULD_MOVE_INTO_ACID(element) ||
10977       MAYBE_DONT_COLLIDE_WITH(element) ||
10978       element == EL_BD_ROCK ||
10979       element == EL_BD_MEGA_ROCK ||
10980       element == EL_BD_SWEET)
10981   {
10982     return TRUE;
10983   }
10984   else
10985   {
10986     for (i = 0; elements_with_counter[i].element != -1; i++)
10987       if (elements_with_counter[i].element == element)
10988         return TRUE;
10989   }
10990
10991   return FALSE;
10992 }
10993
10994 static void SetAutomaticNumberOfGemsNeeded(void)
10995 {
10996   int x, y;
10997
10998   if (!level.auto_count_gems)
10999     return;
11000
11001   level.gems_needed = 0;
11002
11003   for (x = 0; x < lev_fieldx; x++)
11004   {
11005     for (y = 0; y < lev_fieldy; y++)
11006     {
11007       int element = Tile[x][y];
11008
11009       switch (element)
11010       {
11011         case EL_EMERALD:
11012         case EL_EMERALD_YELLOW:
11013         case EL_EMERALD_RED:
11014         case EL_EMERALD_PURPLE:
11015         case EL_BD_DIAMOND:
11016         case EL_WALL_EMERALD:
11017         case EL_WALL_EMERALD_YELLOW:
11018         case EL_WALL_EMERALD_RED:
11019         case EL_WALL_EMERALD_PURPLE:
11020         case EL_WALL_BD_DIAMOND:
11021         case EL_NUT:
11022         case EL_SP_INFOTRON:
11023         case EL_MM_KETTLE:
11024         case EL_DF_CELL:
11025           level.gems_needed++;
11026           break;
11027
11028         case EL_DIAMOND:
11029         case EL_WALL_DIAMOND:
11030           level.gems_needed += 3;
11031           break;
11032
11033         case EL_PEARL:
11034         case EL_WALL_PEARL:
11035           level.gems_needed += 5;
11036           break;
11037
11038         case EL_CRYSTAL:
11039         case EL_WALL_CRYSTAL:
11040           level.gems_needed += 8;
11041           break;
11042
11043         default:
11044           break;
11045       }
11046     }
11047   }
11048
11049   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
11050 }
11051
11052 static void DrawPropertiesConfig(void)
11053 {
11054   boolean draw_footer_line = FALSE;
11055   int max_num_element_counters = 4;
11056   int num_element_counters = 0;
11057   int i;
11058
11059   if (!checkPropertiesConfig(properties_element))
11060   {
11061     int xpos = ED_ELEMENT_SETTINGS_X(0);
11062     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
11063
11064     PrintInfoText("No configuration options available.",
11065                   FONT_TEXT_1, xpos, ypos);
11066
11067     return;
11068   }
11069
11070   // check if there are elements where a value can be chosen for
11071   for (i = 0; elements_with_counter[i].element != -1; i++)
11072   {
11073     if (elements_with_counter[i].element == properties_element)
11074     {
11075       // special case: score for extra diamonds only available in BD game engine
11076       if (elements_with_counter[i].element == EL_BD_DIAMOND &&
11077           elements_with_counter[i].value == &level.score[SC_DIAMOND_EXTRA] &&
11078           level.game_engine_type != GAME_ENGINE_TYPE_BD)
11079         continue;
11080
11081       // special case: some amoeba counters only available in BD game engine
11082       if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11083           elements_with_counter[i].value != &level.amoeba_speed &&
11084           level.game_engine_type != GAME_ENGINE_TYPE_BD)
11085         continue;
11086
11087       // special case: some amoeba counters only available in R'n'D game engine
11088       if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11089           elements_with_counter[i].value == &level.amoeba_speed &&
11090           level.game_engine_type == GAME_ENGINE_TYPE_BD)
11091         continue;
11092
11093       int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
11094
11095       counterbutton_info[counter_id].y =
11096         ED_ELEMENT_SETTINGS_YPOS(
11097                 (HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
11098                 (CAN_GROW(properties_element)                ? 1 : 0) +
11099                 (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
11100                 (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
11101                 (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
11102                 num_element_counters);
11103
11104       // special case: set amoeba counters for BD game engine separately
11105       if ((properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD) ||
11106           (properties_element == EL_BD_AMOEBA_2))
11107         counterbutton_info[counter_id].y =
11108           ED_ELEMENT_SETTINGS_YPOS(3 + num_element_counters);
11109
11110       counterbutton_info[counter_id].value = elements_with_counter[i].value;
11111       counterbutton_info[counter_id].text_right = elements_with_counter[i].text;
11112
11113       if (properties_element == EL_GAME_OF_LIFE ||
11114           properties_element == EL_BIOMAZE)
11115       {
11116         counterbutton_info[counter_id].min_value = 0;   // min neighbours
11117         counterbutton_info[counter_id].max_value = 8;   // max neighbours
11118       }
11119       else if (strEqual(elements_with_counter[i].text, TEXT_AMOEBA_SLOW_RATE) ||
11120                strEqual(elements_with_counter[i].text, TEXT_AMOEBA_FAST_RATE))
11121       {
11122         counterbutton_info[counter_id].min_value = 0;   // min percent
11123         counterbutton_info[counter_id].max_value = 100; // max percent
11124       }
11125       else
11126       {
11127         // !!! CHANGE THIS FOR CERTAIN ELEMENTS !!!
11128         counterbutton_info[counter_id].min_value = MIN_SCORE;
11129         counterbutton_info[counter_id].max_value = MAX_SCORE;
11130       }
11131
11132       MapCounterButtons(counter_id);
11133
11134       num_element_counters++;
11135       if (num_element_counters >= max_num_element_counters)
11136         break;
11137     }
11138   }
11139
11140   if (HAS_EDITOR_CONTENT(properties_element))
11141   {
11142     // draw stickybutton gadget
11143     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11144
11145     if (properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11146     {
11147       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11148       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11149
11150       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG);
11151       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED);
11152     }
11153     else if (properties_element == EL_BD_AMOEBA_2)
11154     {
11155       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11156       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11157       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA);
11158
11159       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG);
11160       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED);
11161       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING);
11162       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE);
11163     }
11164     else if (IS_AMOEBOID(properties_element))
11165       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
11166     else if (properties_element == EL_YAMYAM ||
11167              properties_element == EL_YAMYAM_LEFT ||
11168              properties_element == EL_YAMYAM_RIGHT ||
11169              properties_element == EL_YAMYAM_UP ||
11170              properties_element == EL_YAMYAM_DOWN)
11171       DrawYamYamContentAreas();
11172     else if (properties_element == EL_EMC_MAGIC_BALL)
11173     {
11174       DrawMagicBallContentAreas();
11175
11176       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
11177       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
11178     }
11179     else if (properties_element == EL_EMC_ANDROID)
11180       DrawAndroidElementArea();
11181     else if (properties_element == EL_MM_GRAY_BALL)
11182     {
11183       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
11184       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
11185       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
11186       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
11187
11188       DrawMMBallContentArea();
11189     }
11190   }
11191
11192   if (IS_PLAYER_ELEMENT(properties_element))
11193   {
11194     int player_nr = GET_PLAYER_NR(properties_element);
11195
11196     // these properties can be set for every player individually
11197
11198     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11199     {
11200       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
11201         &level.start_element[player_nr];
11202       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
11203         &level.artwork_element[player_nr];
11204       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
11205         &level.explosion_element[player_nr];
11206
11207       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
11208         &level.use_start_element[player_nr];
11209       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
11210         &level.use_artwork_element[player_nr];
11211       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
11212         &level.use_explosion_element[player_nr];
11213       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
11214         &level.initial_player_gravity[player_nr];
11215
11216       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
11217         &level.initial_player_stepsize[player_nr];
11218
11219       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
11220       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
11221                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
11222                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
11223       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
11224       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
11225       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
11226       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
11227       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
11228       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
11229       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
11230       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
11231       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
11232       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
11233       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
11234
11235       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
11236       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
11237       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
11238
11239       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
11240     }
11241     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11242     {
11243       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
11244         &level.initial_inventory_content[player_nr][0];
11245
11246       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
11247         &level.initial_inventory_size[player_nr];
11248
11249       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
11250         &level.use_initial_inventory[player_nr];
11251
11252       // draw checkbutton gadgets
11253       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
11254       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
11255       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
11256
11257       // draw counter gadgets
11258       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
11259
11260       // draw drawing area gadgets
11261       DrawPlayerInitialInventoryArea(properties_element);
11262     }
11263   }
11264
11265   if (IS_BD_PLAYER_ELEMENT(properties_element))
11266   {
11267     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11268       ED_ELEMENT_SETTINGS_YPOS(2);
11269     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11270       ED_ELEMENT_SETTINGS_YPOS(3);
11271     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11272       ED_ELEMENT_SETTINGS_YPOS(4);
11273
11274     // draw checkbutton gadgets
11275     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS);
11276     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE);
11277     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11278
11279     // draw counter gadgets
11280     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11281     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11282   }
11283
11284   if (properties_element == EL_BD_ROCK && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11285   {
11286     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11287       ED_ELEMENT_SETTINGS_YPOS(0);
11288     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11289       ED_ELEMENT_SETTINGS_YPOS(1);
11290
11291     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11292     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11293   }
11294
11295   if (properties_element == EL_BD_MEGA_ROCK ||
11296       properties_element == EL_BD_SWEET)
11297   {
11298     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11299       ED_ELEMENT_SETTINGS_YPOS(0);
11300     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11301       ED_ELEMENT_SETTINGS_YPOS(1);
11302
11303     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11304     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11305   }
11306
11307   if (properties_element == EL_BD_MAGIC_WALL)
11308   {
11309     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING);
11310     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA);
11311   }
11312
11313   // special case: slippery walls option for gems only available in R'n'D game engine
11314   if (IS_GEM(properties_element) && level.game_engine_type == GAME_ENGINE_TYPE_RND)
11315     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
11316
11317   if (properties_element == EL_EM_DYNAMITE)
11318     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
11319
11320   if (COULD_MOVE_INTO_ACID(properties_element) &&
11321       !IS_PLAYER_ELEMENT(properties_element) &&
11322       (!IS_CUSTOM_ELEMENT(properties_element) ||
11323        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
11324   {
11325     // set position for checkbutton for "can move into acid"
11326     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
11327       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
11328     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
11329       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
11330                                IS_BALLOON_ELEMENT(properties_element) ||
11331                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11332
11333     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
11334   }
11335
11336   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
11337     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
11338
11339   if (properties_element == EL_SPRING ||
11340       properties_element == EL_SPRING_LEFT ||
11341       properties_element == EL_SPRING_RIGHT)
11342     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
11343
11344   if (properties_element == EL_TIME_ORB_FULL)
11345     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
11346
11347   if (properties_element == EL_GAME_OF_LIFE ||
11348       properties_element == EL_BIOMAZE)
11349     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
11350
11351   if (CAN_GROW(properties_element) && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11352   {
11353     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
11354       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11355
11356     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
11357   }
11358
11359   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
11360     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
11361
11362   if (properties_element == EL_SOKOBAN_OBJECT)
11363     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
11364
11365   if (properties_element == EL_SOKOBAN_OBJECT ||
11366       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
11367       properties_element == EL_SOKOBAN_FIELD_FULL)
11368   {
11369     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
11370       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
11371                                0 : 1);
11372
11373     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
11374   }
11375
11376   if (IS_BALLOON_ELEMENT(properties_element))
11377     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
11378
11379   if (IS_ENVELOPE(properties_element) ||
11380       IS_MM_ENVELOPE(properties_element))
11381   {
11382     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
11383     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
11384     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
11385     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
11386     int envelope_nr = ENVELOPE_NR(properties_element);
11387
11388     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
11389     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
11390
11391     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
11392     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
11393
11394     // display counter to choose size of envelope text area
11395     MapCounterButtons(counter1_id);
11396     MapCounterButtons(counter2_id);
11397
11398     // display checkbuttons to choose auto-wrap and alignment properties
11399     MapCheckbuttonGadget(button1_id);
11400     MapCheckbuttonGadget(button2_id);
11401
11402     DrawEnvelopeTextArea(envelope_nr);
11403   }
11404
11405   if (IS_MM_MCDUFFIN(properties_element))
11406   {
11407     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
11408     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
11409     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
11410   }
11411
11412   if (IS_DF_LASER(properties_element))
11413   {
11414     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
11415     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
11416     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
11417   }
11418
11419   if (IS_CUSTOM_ELEMENT(properties_element))
11420   {
11421     // draw stickybutton gadget
11422     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11423
11424     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11425     {
11426       // draw checkbutton gadgets
11427       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
11428            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
11429         MapCheckbuttonGadget(i);
11430
11431       // draw counter gadgets
11432       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
11433            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
11434         MapCounterButtons(i);
11435
11436       // draw selectbox gadgets
11437       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
11438            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
11439         MapSelectboxGadget(i);
11440
11441       // draw textbutton gadgets
11442       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11443
11444       // draw text input gadgets
11445       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11446
11447       // draw drawing area gadgets
11448       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11449
11450       draw_footer_line = TRUE;
11451     }
11452     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11453     {
11454       // draw checkbutton gadgets
11455       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
11456            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
11457         MapCheckbuttonGadget(i);
11458
11459       // draw counter gadgets
11460       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
11461            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
11462         MapCounterButtons(i);
11463
11464       // draw selectbox gadgets
11465       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
11466            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
11467         MapSelectboxGadget(i);
11468
11469       // draw drawing area gadgets
11470       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
11471       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
11472       DrawCustomContentArea();
11473     }
11474   }
11475   else if (IS_GROUP_ELEMENT(properties_element))
11476   {
11477     // draw stickybutton gadget
11478     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11479
11480     // draw checkbutton gadgets
11481     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11482     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11483
11484     // draw counter gadgets
11485     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
11486
11487     // draw selectbox gadgets
11488     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
11489
11490     // draw textbutton gadgets
11491     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11492
11493     // draw drawing area gadgets
11494     DrawGroupElementArea();
11495
11496     // draw text input gadgets
11497     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11498
11499     // draw drawing area gadgets
11500     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11501
11502     draw_footer_line = TRUE;
11503   }
11504   else if (IS_EMPTY_ELEMENT(properties_element))
11505   {
11506     // draw stickybutton gadget
11507     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11508
11509     // draw checkbutton gadgets
11510     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11511     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11512
11513     // draw textbutton gadgets
11514     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11515
11516     // draw drawing area gadgets
11517     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11518
11519     draw_footer_line = TRUE;
11520   }
11521
11522   // draw little footer border line above CE/GE use/save template gadgets
11523   if (draw_footer_line)
11524   {
11525     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
11526     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
11527     int gd_x = gd->x + gd_gi1->border.width / 2;
11528     int gd_y = gd->y + gd_gi1->height - 1;
11529     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
11530
11531     if (tab_color != BLACK_PIXEL)               // black => transparent
11532       FillRectangle(drawto,
11533                     SX + ED_ELEMENT_SETTINGS_X(0),
11534                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
11535                     ED_TAB_BAR_HEIGHT,
11536                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
11537   }
11538 }
11539
11540 static void DrawPropertiesChangeDrawingAreas(void)
11541 {
11542   if (IS_CUSTOM_ELEMENT(properties_element))
11543   {
11544     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
11545     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
11546     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
11547
11548     DrawCustomChangeContentArea();
11549   }
11550
11551   redraw_mask |= REDRAW_FIELD;
11552 }
11553
11554 static void DrawPropertiesChange(void)
11555 {
11556   int i;
11557
11558   // needed to initially set selectbox options for special action options
11559   setSelectboxSpecialActionOptions();
11560
11561   // draw stickybutton gadget
11562   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11563
11564   // draw checkbutton gadgets
11565   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
11566        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
11567     MapCheckbuttonGadget(i);
11568
11569   // draw counter gadgets
11570   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
11571        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
11572     MapCounterButtons(i);
11573
11574   // draw selectbox gadgets
11575   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
11576        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
11577     MapSelectboxGadget(i);
11578
11579   // draw textbutton gadgets
11580   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
11581        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
11582     MapTextbuttonGadget(i);
11583
11584   // draw graphicbutton gadgets
11585   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
11586        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
11587     MapGraphicbuttonGadget(i);
11588
11589   // draw drawing area gadgets
11590   DrawPropertiesChangeDrawingAreas();
11591 }
11592
11593 static void DrawEditorElementAnimation(int x, int y)
11594 {
11595   int graphic = el2img(properties_element);
11596   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
11597                custom_element.ce_value_fixed_initial :
11598                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
11599                custom_element.collect_score_initial : FrameCounter);
11600
11601   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
11602 }
11603
11604 static void DrawEditorElementName(int x, int y, int font_nr)
11605 {
11606   char *element_name = getElementInfoText(properties_element);
11607   int font_width = getFontWidth(font_nr);
11608   int font_height = getFontHeight(font_nr);
11609   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
11610   int max_chars_per_line = max_text_width / font_width;
11611
11612   if (strlen(element_name) <= max_chars_per_line)
11613     DrawTextS(x, y, font_nr, element_name);
11614   else
11615   {
11616     char buffer[max_chars_per_line + 1];
11617     int next_pos = max_chars_per_line;
11618
11619     strncpy(buffer, element_name, max_chars_per_line);
11620     buffer[max_chars_per_line] = '\0';
11621
11622     if (element_name[max_chars_per_line] == ' ')
11623       next_pos++;
11624     else
11625     {
11626       int i;
11627
11628       for (i = max_chars_per_line - 1; i >= 0; i--)
11629         if (buffer[i] == ' ')
11630           break;
11631
11632       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
11633       {
11634         buffer[i] = '\0';
11635         next_pos = i + 1;
11636       }
11637     }
11638
11639     DrawTextS(x, y - font_height / 2, font_nr, buffer);
11640
11641     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
11642     buffer[max_chars_per_line] = '\0';
11643
11644     DrawTextS(x, y + font_height / 2, font_nr, buffer);
11645   }
11646 }
11647
11648 static void DrawPropertiesWindow(void)
11649 {
11650   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
11651   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
11652   int border_size = gd->border_size;
11653   int font_nr = FONT_TEXT_1;
11654   int font_height = getFontHeight(font_nr);
11655   int xoffset = TILEX + element_border + 3 * border_size;
11656   int yoffset = (TILEY - font_height) / 2;
11657   int x1 = editor.settings.element_graphic.x + element_border;
11658   int y1 = editor.settings.element_graphic.y + element_border;
11659   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
11660             editor.settings.element_name.x);
11661   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
11662             editor.settings.element_name.y);
11663   char *text = "Element Settings";
11664   int font2_nr = FONT_TITLE_1;
11665   struct MenuPosInfo *pos = &editor.settings.headline;
11666   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
11667   int sy = SY + pos->y;
11668
11669   stick_element_properties_window = FALSE;
11670
11671   // make sure that previous properties edit mode exists for this element
11672   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
11673       !IS_CUSTOM_ELEMENT(properties_element))
11674     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
11675
11676   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
11677       !IS_PLAYER_ELEMENT(properties_element) &&
11678       !IS_CUSTOM_ELEMENT(properties_element))
11679     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
11680
11681   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
11682       (IS_PLAYER_ELEMENT(properties_element) ||
11683        IS_CUSTOM_ELEMENT(properties_element)))
11684     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
11685
11686   CopyElementPropertiesToEditor(properties_element);
11687
11688   UnmapLevelEditorFieldGadgets();
11689   UnmapLevelEditorToolboxDrawingGadgets();
11690   UnmapLevelEditorToolboxCustomGadgets();
11691
11692   MapLevelEditorToolboxCustomGadgetsIfNeeded();
11693
11694   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11695   ClearField();
11696
11697   DrawText(sx, sy, text, font2_nr);
11698
11699   FrameCounter = 0;     // restart animation frame counter
11700
11701   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
11702   DrawEditorElementAnimation(SX + x1, SY + y1);
11703   DrawEditorElementName(x2, y2, font_nr);
11704
11705   DrawPropertiesTabulatorGadgets();
11706
11707   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
11708     DrawPropertiesInfo();
11709   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
11710     DrawPropertiesChange();
11711   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
11712     DrawPropertiesConfig();
11713 }
11714
11715 static void DrawPaletteWindow(void)
11716 {
11717   int i;
11718
11719   UnmapLevelEditorFieldGadgets();
11720
11721   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11722   ClearField();
11723
11724   // map buttons to select elements
11725   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
11726     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
11727   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
11728   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
11729   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
11730 }
11731
11732 static void UpdateCustomElementGraphicGadgets(void)
11733 {
11734   int i;
11735
11736   InitElementPropertiesGfxElement();
11737
11738   ModifyEditorElementList();
11739   RedrawDrawingElements();
11740
11741   // force redraw of all mapped drawing area gadgets
11742   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
11743   {
11744     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
11745
11746     if (gi->mapped)
11747       MapDrawingArea(i);
11748   }
11749 }
11750
11751 static int getOpenDirectionFromTube(int element)
11752 {
11753   switch (element)
11754   {
11755     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
11756     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
11757     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
11758     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
11759     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
11760     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
11761     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
11762     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
11763     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
11764     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
11765     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
11766   }
11767
11768   return MV_NONE;
11769 }
11770
11771 static int getTubeFromOpenDirection(int direction)
11772 {
11773   switch (direction)
11774   {
11775     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
11776     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
11777     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
11778     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
11779     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
11780     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
11781     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
11782     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
11783     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
11784     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
11785     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
11786
11787     // if only one direction, fall back to simple tube with that direction
11788     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
11789     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
11790     case (MV_UP):                       return EL_TUBE_VERTICAL;
11791     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
11792   }
11793
11794   return EL_EMPTY;
11795 }
11796
11797 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
11798 {
11799   int element_new = getTubeFromOpenDirection(direction);
11800
11801   return (element_new != EL_EMPTY ? element_new : element_old);
11802 }
11803
11804 static int getOpenDirectionFromBelt(int element)
11805 {
11806   int belt_dir = getBeltDirFromBeltElement(element);
11807
11808   return (belt_dir == MV_LEFT ? MV_RIGHT :
11809           belt_dir == MV_RIGHT ? MV_LEFT :
11810           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
11811 }
11812
11813 static int getBeltFromNrAndOpenDirection(int nr, int direction)
11814 {
11815   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
11816                   direction == MV_RIGHT ? MV_LEFT :
11817                   direction == MV_HORIZONTAL ? MV_NONE : direction);
11818
11819   if (direction == MV_NONE)
11820     return EL_EMPTY;
11821
11822   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
11823 }
11824
11825 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
11826                                                  int element_old)
11827 {
11828   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
11829
11830   return (element_new != EL_EMPTY ? element_new : element_old);
11831 }
11832
11833 static int getOpenDirectionFromPool(int element)
11834 {
11835   switch (element)
11836   {
11837     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
11838     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
11839     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
11840     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
11841     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
11842     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
11843   }
11844
11845   return MV_NONE;
11846 }
11847
11848 static int getPoolFromOpenDirection(int direction)
11849 {
11850   switch (direction)
11851   {
11852     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
11853     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
11854     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
11855     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
11856     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
11857     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
11858   }
11859
11860   return EL_EMPTY;
11861 }
11862
11863 static int getPoolFromOpenDirectionExt(int direction, int help_element)
11864 {
11865   int element = getPoolFromOpenDirection(direction);
11866   int help_direction = getOpenDirectionFromPool(help_element);
11867
11868   if (element == EL_EMPTY)
11869   {
11870     int help_direction_vertical = help_direction & MV_VERTICAL;
11871
11872     element = getPoolFromOpenDirection(direction | help_direction_vertical);
11873   }
11874
11875   if (element == EL_EMPTY)
11876   {
11877     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
11878
11879     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
11880   }
11881
11882   return element;
11883 }
11884
11885 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
11886 {
11887   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
11888
11889   return (element_new != EL_EMPTY ? element_new : element_old);
11890 }
11891
11892 static int getOpenDirectionFromPillar(int element)
11893 {
11894   switch (element)
11895   {
11896     case EL_EMC_WALL_1:                 return (MV_DOWN);
11897     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
11898     case EL_EMC_WALL_3:                 return (MV_UP);
11899   }
11900
11901   return MV_NONE;
11902 }
11903
11904 static int getPillarFromOpenDirection(int direction)
11905 {
11906   switch (direction)
11907   {
11908     case (MV_DOWN):                     return EL_EMC_WALL_1;
11909     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
11910     case (MV_UP):                       return EL_EMC_WALL_3;
11911   }
11912
11913   return EL_EMPTY;
11914 }
11915
11916 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
11917 {
11918   int element_new = getPillarFromOpenDirection(direction);
11919
11920   return (element_new != EL_EMPTY ? element_new : element_old);
11921 }
11922
11923 static int getOpenDirectionFromSteel2(int element)
11924 {
11925   switch (element)
11926   {
11927     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
11928     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
11929     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
11930     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
11931     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
11932     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
11933     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
11934     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
11935   }
11936
11937   return MV_NONE;
11938 }
11939
11940 static int getSteel2FromOpenDirection(int direction)
11941 {
11942   switch (direction)
11943   {
11944     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
11945     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
11946     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
11947     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
11948     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
11949     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
11950     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
11951     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
11952   }
11953
11954   return EL_EMPTY;
11955 }
11956
11957 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
11958 {
11959   int element_new = getSteel2FromOpenDirection(direction);
11960
11961   return (element_new != EL_EMPTY ? element_new : element_old);
11962 }
11963
11964 static int getOpenDirectionFromChip(int element)
11965 {
11966   switch (element)
11967   {
11968     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
11969     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
11970     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
11971     case EL_SP_CHIP_TOP:                return (MV_DOWN);
11972     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
11973   }
11974
11975   return MV_NONE;
11976 }
11977
11978 static int getChipFromOpenDirection(int direction)
11979 {
11980   switch (direction)
11981   {
11982     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
11983     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
11984     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
11985     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
11986     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
11987   }
11988
11989   return EL_EMPTY;
11990 }
11991
11992 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
11993 {
11994   int element_new = getChipFromOpenDirection(direction);
11995
11996   return (element_new != EL_EMPTY ? element_new : element_old);
11997 }
11998
11999 static int getClosedTube(int x, int y)
12000 {
12001   struct XY *xy = xy_directions;
12002   int element_old = IntelliDrawBuffer[x][y];
12003   int direction_old = getOpenDirectionFromTube(element_old);
12004   int direction_new = MV_NONE;
12005   int i;
12006
12007   for (i = 0; i < NUM_DIRECTIONS; i++)
12008   {
12009     int xx = x + xy[i].x;
12010     int yy = y + xy[i].y;
12011     int dir = MV_DIR_FROM_BIT(i);
12012     int dir_opposite = MV_DIR_OPPOSITE(dir);
12013
12014     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
12015         (direction_old & dir) &&
12016         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12017       direction_new |= dir;
12018   }
12019
12020   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
12021 }
12022
12023 static int getClosedBelt(int x, int y)
12024 {
12025   struct XY *xy = xy_directions;
12026   int element_old = IntelliDrawBuffer[x][y];
12027   int nr = getBeltNrFromBeltElement(element_old);
12028   int direction_old = getOpenDirectionFromBelt(element_old);
12029   int direction_new = MV_NONE;
12030   int i;
12031
12032   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12033   {
12034     int xx = x + xy[i].x;
12035     int yy = y + xy[i].y;
12036     int dir = MV_DIR_FROM_BIT(i);
12037     int dir_opposite = MV_DIR_OPPOSITE(dir);
12038
12039     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
12040         (direction_old & dir) &&
12041         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12042       direction_new |= dir;
12043   }
12044
12045   return getBeltFromNrAndOpenDirection(nr, direction_new);
12046 }
12047
12048 static int getClosedPool(int x, int y)
12049 {
12050   struct XY *xy = xy_directions;
12051   int element_old = IntelliDrawBuffer[x][y];
12052   int direction_old = getOpenDirectionFromPool(element_old);
12053   int direction_new = MV_NONE;
12054   int i;
12055
12056   for (i = 0; i < NUM_DIRECTIONS; i++)
12057   {
12058     int xx = x + xy[i].x;
12059     int yy = y + xy[i].y;
12060     int dir = MV_DIR_FROM_BIT(i);
12061     int dir_opposite = MV_DIR_OPPOSITE(dir);
12062
12063     if (IN_LEV_FIELD(xx, yy) &&
12064         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
12065         (direction_old & dir) &&
12066         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12067       direction_new |= dir;
12068   }
12069
12070   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
12071 }
12072
12073 static int getClosedPillar(int x, int y)
12074 {
12075   struct XY *xy = xy_directions;
12076   int element_old = IntelliDrawBuffer[x][y];
12077   int direction_old = getOpenDirectionFromPillar(element_old);
12078   int direction_new = MV_NONE;
12079   int i;
12080
12081   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12082   {
12083     int xx = x + xy[i].x;
12084     int yy = y + xy[i].y;
12085     int dir = MV_DIR_FROM_BIT(i);
12086     int dir_opposite = MV_DIR_OPPOSITE(dir);
12087
12088     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
12089         (direction_old & dir) &&
12090         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12091       direction_new |= dir;
12092   }
12093
12094   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
12095 }
12096
12097 static int getClosedSteel2(int x, int y)
12098 {
12099   struct XY *xy = xy_directions;
12100   int element_old = IntelliDrawBuffer[x][y];
12101   int direction_old = getOpenDirectionFromSteel2(element_old);
12102   int direction_new = MV_NONE;
12103   int i;
12104
12105   for (i = 0; i < NUM_DIRECTIONS; i++)
12106   {
12107     int xx = x + xy[i].x;
12108     int yy = y + xy[i].y;
12109     int dir = MV_DIR_FROM_BIT(i);
12110     int dir_opposite = MV_DIR_OPPOSITE(dir);
12111
12112     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
12113         (direction_old & dir) &&
12114         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12115       direction_new |= dir;
12116   }
12117
12118   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
12119 }
12120
12121 static int getClosedChip(int x, int y)
12122 {
12123   struct XY *xy = xy_directions;
12124   int element_old = IntelliDrawBuffer[x][y];
12125   int direction_old = getOpenDirectionFromChip(element_old);
12126   int direction_new = MV_NONE;
12127   int i;
12128
12129   for (i = 0; i < NUM_DIRECTIONS; i++)
12130   {
12131     int xx = x + xy[i].x;
12132     int yy = y + xy[i].y;
12133     int dir = MV_DIR_FROM_BIT(i);
12134     int dir_opposite = MV_DIR_OPPOSITE(dir);
12135
12136     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
12137         (direction_old & dir) &&
12138         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12139       direction_new |= dir;
12140   }
12141
12142   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
12143 }
12144
12145 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
12146                                 boolean change_level)
12147 {
12148   int sx = x - level_xpos;
12149   int sy = y - level_ypos;
12150   int old_element = Tile[x][y];
12151   int new_element = element;
12152   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
12153   boolean draw_masked = FALSE;
12154
12155   if (IS_MM_WALL_EDITOR(element))
12156   {
12157     element = map_mm_wall_element_editor(element) | new_bitmask;
12158
12159     if (IS_MM_WALL(old_element))
12160       element |= MM_WALL_BITS(old_element);
12161
12162     if (!change_level)
12163       draw_masked = TRUE;
12164   }
12165   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
12166   {
12167     int element_changed = old_element & ~new_bitmask;
12168
12169     if (MM_WALL_BITS(element_changed) != 0)
12170       element = element_changed;
12171   }
12172
12173   IntelliDrawBuffer[x][y] = element;
12174
12175   if (change_level)
12176     Tile[x][y] = element;
12177
12178   if (IN_ED_FIELD(sx, sy))
12179   {
12180     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
12181       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
12182     else if (draw_masked)
12183       DrawEditorElementThruMask(sx, sy, element);
12184     else
12185       DrawEditorElement(sx, sy, element);
12186   }
12187 }
12188
12189 static void SetElementSimple(int x, int y, int element, boolean change_level)
12190 {
12191   SetElementSimpleExt(x, y, 0, 0, element, change_level);
12192 }
12193
12194 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
12195                                            int x2, int y2, int *element2,
12196                                            int (*close_function)(int, int),
12197                                            boolean change_level)
12198 {
12199   // set neighbour elements to newly determined connections
12200   SetElementSimple(x1, y1, *element1, change_level);
12201   SetElementSimple(x2, y2, *element2, change_level);
12202
12203   // remove all open connections of neighbour elements
12204   *element1 = close_function(x1, y1);
12205   *element2 = close_function(x2, y2);
12206
12207   // set neighbour elements to new, minimized connections
12208   SetElementSimple(x1, y1, *element1, change_level);
12209   SetElementSimple(x2, y2, *element2, change_level);
12210 }
12211
12212 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
12213                                   boolean change_level, int button)
12214 {
12215   struct XY *xy = xy_directions;
12216   static int last_x = -1;
12217   static int last_y = -1;
12218
12219   if (new_element == EL_UNDEFINED)
12220   {
12221     last_x = -1;
12222     last_y = -1;
12223
12224     return;
12225   }
12226
12227   int old_element = IntelliDrawBuffer[x][y];
12228
12229   if (IS_TUBE(new_element))
12230   {
12231     int last_element_new = EL_UNDEFINED;
12232     int direction = MV_NONE;
12233     int i;
12234
12235     // if old element is of same kind, keep all existing directions
12236     if (IS_TUBE(old_element))
12237       direction |= getOpenDirectionFromTube(old_element);
12238
12239     for (i = 0; i < NUM_DIRECTIONS; i++)
12240     {
12241       int xx = x + xy[i].x;
12242       int yy = y + xy[i].y;
12243
12244       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12245           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
12246       {
12247         int dir = MV_DIR_FROM_BIT(i);
12248         int dir_opposite = MV_DIR_OPPOSITE(dir);
12249         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12250         int last_direction_old = getOpenDirectionFromTube(last_element_old);
12251         int last_direction_new = last_direction_old | dir_opposite;
12252
12253         last_element_new = getTubeFromOpenDirection(last_direction_new);
12254
12255         direction |= dir;
12256       }
12257     }
12258
12259     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
12260
12261     if (last_element_new != EL_UNDEFINED)
12262       MergeAndCloseNeighbourElements(x, y, &new_element,
12263                                      last_x, last_y, &last_element_new,
12264                                      getClosedTube, change_level);
12265   }
12266   else if (IS_BELT(new_element))
12267   {
12268     int belt_nr = getBeltNrFromBeltElement(new_element);
12269     int last_element_new = EL_UNDEFINED;
12270     int direction = MV_NONE;
12271     int i;
12272
12273     // if old element is of same kind, keep all existing directions
12274     if (IS_BELT(old_element))
12275       direction |= getOpenDirectionFromBelt(old_element);
12276
12277     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12278     {
12279       int xx = x + xy[i].x;
12280       int yy = y + xy[i].y;
12281
12282       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12283           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
12284       {
12285         int dir = MV_DIR_FROM_BIT(i);
12286         int dir_opposite = MV_DIR_OPPOSITE(dir);
12287         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12288         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
12289         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
12290         int last_direction_new = last_direction_old | dir_opposite;
12291
12292         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
12293                                                          last_direction_new);
12294         direction |= dir;
12295       }
12296     }
12297
12298     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
12299                                                         new_element);
12300     if (last_element_new != EL_UNDEFINED)
12301       MergeAndCloseNeighbourElements(x, y, &new_element,
12302                                      last_x, last_y, &last_element_new,
12303                                      getClosedBelt, change_level);
12304   }
12305   else if (IS_ACID_POOL_OR_ACID(new_element))
12306   {
12307     int last_element_new = EL_UNDEFINED;
12308     int direction = MV_NONE;
12309     int i;
12310
12311     // if old element is of same kind, keep all existing directions
12312     if (IS_ACID_POOL_OR_ACID(old_element))
12313       direction |= getOpenDirectionFromPool(old_element);
12314
12315     for (i = 0; i < NUM_DIRECTIONS; i++)
12316     {
12317       int xx = x + xy[i].x;
12318       int yy = y + xy[i].y;
12319
12320       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12321           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
12322       {
12323         int dir = MV_DIR_FROM_BIT(i);
12324         int dir_opposite = MV_DIR_OPPOSITE(dir);
12325         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12326         int last_direction_old = getOpenDirectionFromPool(last_element_old);
12327         int last_direction_new = last_direction_old | dir_opposite;
12328
12329         last_element_new = getPoolFromOpenDirection(last_direction_new);
12330
12331         direction |= dir;
12332       }
12333     }
12334
12335     // special corrections needed for intuitively correct acid pool drawing
12336     if (last_element_new == EL_EMPTY)
12337       last_element_new = new_element;
12338     else if (last_element_new != EL_UNDEFINED)
12339       new_element = last_element_new;
12340
12341     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
12342
12343     if (last_element_new != EL_UNDEFINED)
12344       MergeAndCloseNeighbourElements(x, y, &new_element,
12345                                      last_x, last_y, &last_element_new,
12346                                      getClosedPool, change_level);
12347   }
12348   else if (IS_EMC_PILLAR(new_element))
12349   {
12350     int last_element_new = EL_UNDEFINED;
12351     int direction = MV_NONE;
12352     int i;
12353
12354     // if old element is of same kind, keep all existing directions
12355     if (IS_EMC_PILLAR(old_element))
12356       direction |= getOpenDirectionFromPillar(old_element);
12357
12358     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12359     {
12360       int xx = x + xy[i].x;
12361       int yy = y + xy[i].y;
12362
12363       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12364           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
12365       {
12366         int dir = MV_DIR_FROM_BIT(i);
12367         int dir_opposite = MV_DIR_OPPOSITE(dir);
12368         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12369         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
12370         int last_direction_new = last_direction_old | dir_opposite;
12371
12372         last_element_new = getPillarFromOpenDirection(last_direction_new);
12373
12374         direction |= dir;
12375       }
12376     }
12377
12378     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
12379
12380     if (last_element_new != EL_UNDEFINED)
12381       MergeAndCloseNeighbourElements(x, y, &new_element,
12382                                      last_x, last_y, &last_element_new,
12383                                      getClosedPillar, change_level);
12384   }
12385   else if (IS_DC_STEELWALL_2(new_element))
12386   {
12387     int last_element_new = EL_UNDEFINED;
12388     int direction = MV_NONE;
12389     int i;
12390
12391     // if old element is of same kind, keep all existing directions
12392     if (IS_DC_STEELWALL_2(old_element))
12393       direction |= getOpenDirectionFromSteel2(old_element);
12394
12395     for (i = 0; i < NUM_DIRECTIONS; i++)
12396     {
12397       int xx = x + xy[i].x;
12398       int yy = y + xy[i].y;
12399
12400       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12401           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
12402       {
12403         int dir = MV_DIR_FROM_BIT(i);
12404         int dir_opposite = MV_DIR_OPPOSITE(dir);
12405         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12406         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
12407         int last_direction_new = last_direction_old | dir_opposite;
12408
12409         last_element_new = getSteel2FromOpenDirection(last_direction_new);
12410
12411         direction |= dir;
12412       }
12413     }
12414
12415     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
12416
12417     if (last_element_new != EL_UNDEFINED)
12418       MergeAndCloseNeighbourElements(x, y, &new_element,
12419                                      last_x, last_y, &last_element_new,
12420                                      getClosedSteel2, change_level);
12421   }
12422   else if (IS_SP_CHIP(new_element))
12423   {
12424     int last_element_new = EL_UNDEFINED;
12425     int direction = MV_NONE;
12426     int i;
12427
12428     // (do not keep existing directions, regardless of kind of old element)
12429
12430     for (i = 0; i < NUM_DIRECTIONS; i++)
12431     {
12432       int xx = x + xy[i].x;
12433       int yy = y + xy[i].y;
12434
12435       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12436           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
12437       {
12438         int dir = MV_DIR_FROM_BIT(i);
12439         int dir_opposite = MV_DIR_OPPOSITE(dir);
12440         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12441         int last_direction_old = getOpenDirectionFromChip(last_element_old);
12442         int last_direction_new = last_direction_old | dir_opposite;
12443
12444         if (last_direction_old == MV_NONE)
12445         {
12446           last_element_new = getChipFromOpenDirection(last_direction_new);
12447           direction |= dir;
12448         }
12449         else if (last_direction_old & (dir | dir_opposite))
12450         {
12451           direction |= MV_DIR_OPPOSITE(last_direction_old);
12452         }
12453         else
12454         {
12455           direction |= MV_DIR_OPPOSITE(dir);
12456         }
12457       }
12458     }
12459
12460     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
12461
12462     if (last_element_new != EL_UNDEFINED)
12463       MergeAndCloseNeighbourElements(x, y, &new_element,
12464                                      last_x, last_y, &last_element_new,
12465                                      getClosedChip, change_level);
12466   }
12467   else if (IS_SP_HARDWARE_BASE(new_element))
12468   {
12469     int nr = GetSimpleRandom(6);
12470
12471     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
12472                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
12473                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
12474                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
12475                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
12476   }
12477   else if (new_element == EL_SP_HARDWARE_GREEN ||
12478            new_element == EL_SP_HARDWARE_BLUE ||
12479            new_element == EL_SP_HARDWARE_RED)
12480   {
12481     int nr = GetSimpleRandom(3);
12482
12483     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
12484                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
12485   }
12486   else if (IS_GROUP_ELEMENT(new_element))
12487   {
12488     boolean connected_drawing = FALSE;
12489     int i;
12490
12491     for (i = 0; i < NUM_DIRECTIONS; i++)
12492     {
12493       int xx = x + xy[i].x;
12494       int yy = y + xy[i].y;
12495
12496       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12497           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
12498         connected_drawing = TRUE;
12499     }
12500
12501     if (!connected_drawing)
12502       ResolveGroupElement(new_element);
12503
12504     new_element = GetElementFromGroupElement(new_element);
12505   }
12506   else if (IS_BELT_SWITCH(old_element))
12507   {
12508     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
12509     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
12510
12511     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
12512                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
12513
12514     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
12515   }
12516   else
12517   {
12518     static int swappable_elements[][2] =
12519     {
12520       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
12521       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
12522       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
12523       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
12524       { EL_EMERALD,                     EL_WALL_EMERALD                 },
12525       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
12526       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
12527       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
12528       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
12529       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
12530       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
12531       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
12532       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
12533       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
12534       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
12535       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
12536       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
12537       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
12538       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
12539       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
12540       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
12541       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
12542       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
12543       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
12544       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
12545       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
12546       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
12547       { EL_PEARL,                       EL_WALL_PEARL                   },
12548       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
12549       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
12550       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
12551       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
12552       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
12553       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
12554       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
12555       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
12556       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
12557       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
12558       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
12559       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
12560       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
12561       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
12562       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
12563       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
12564
12565       { -1,                             -1                              },
12566     };
12567     static int rotatable_elements_4[][4] =
12568     {
12569       {
12570         EL_BUG_UP,
12571         EL_BUG_RIGHT,
12572         EL_BUG_DOWN,
12573         EL_BUG_LEFT
12574       },
12575       {
12576         EL_SPACESHIP_UP,
12577         EL_SPACESHIP_RIGHT,
12578         EL_SPACESHIP_DOWN,
12579         EL_SPACESHIP_LEFT
12580       },
12581       {
12582         EL_BD_BUTTERFLY_UP,
12583         EL_BD_BUTTERFLY_RIGHT,
12584         EL_BD_BUTTERFLY_DOWN,
12585         EL_BD_BUTTERFLY_LEFT
12586       },
12587       {
12588         EL_BD_FIREFLY_UP,
12589         EL_BD_FIREFLY_RIGHT,
12590         EL_BD_FIREFLY_DOWN,
12591         EL_BD_FIREFLY_LEFT
12592       },
12593       {
12594         EL_PACMAN_UP,
12595         EL_PACMAN_RIGHT,
12596         EL_PACMAN_DOWN,
12597         EL_PACMAN_LEFT
12598       },
12599       {
12600         EL_YAMYAM_UP,
12601         EL_YAMYAM_RIGHT,
12602         EL_YAMYAM_DOWN,
12603         EL_YAMYAM_LEFT
12604       },
12605       {
12606         EL_ARROW_UP,
12607         EL_ARROW_RIGHT,
12608         EL_ARROW_DOWN,
12609         EL_ARROW_LEFT
12610       },
12611       {
12612         EL_SP_PORT_UP,
12613         EL_SP_PORT_RIGHT,
12614         EL_SP_PORT_DOWN,
12615         EL_SP_PORT_LEFT
12616       },
12617       {
12618         EL_SP_GRAVITY_PORT_UP,
12619         EL_SP_GRAVITY_PORT_RIGHT,
12620         EL_SP_GRAVITY_PORT_DOWN,
12621         EL_SP_GRAVITY_PORT_LEFT
12622       },
12623       {
12624         EL_SP_GRAVITY_ON_PORT_UP,
12625         EL_SP_GRAVITY_ON_PORT_RIGHT,
12626         EL_SP_GRAVITY_ON_PORT_DOWN,
12627         EL_SP_GRAVITY_ON_PORT_LEFT
12628       },
12629       {
12630         EL_SP_GRAVITY_OFF_PORT_UP,
12631         EL_SP_GRAVITY_OFF_PORT_RIGHT,
12632         EL_SP_GRAVITY_OFF_PORT_DOWN,
12633         EL_SP_GRAVITY_OFF_PORT_LEFT
12634       },
12635       {
12636         EL_MOLE_UP,
12637         EL_MOLE_RIGHT,
12638         EL_MOLE_DOWN,
12639         EL_MOLE_LEFT
12640       },
12641       {
12642         EL_BALLOON_SWITCH_UP,
12643         EL_BALLOON_SWITCH_RIGHT,
12644         EL_BALLOON_SWITCH_DOWN,
12645         EL_BALLOON_SWITCH_LEFT
12646       },
12647       {
12648         EL_MM_MCDUFFIN_UP,
12649         EL_MM_MCDUFFIN_RIGHT,
12650         EL_MM_MCDUFFIN_DOWN,
12651         EL_MM_MCDUFFIN_LEFT
12652       },
12653       {
12654         EL_MM_MIRROR_FIXED_1,
12655         EL_MM_MIRROR_FIXED_4,
12656         EL_MM_MIRROR_FIXED_3,
12657         EL_MM_MIRROR_FIXED_2
12658       },
12659       {
12660         EL_MM_STEEL_GRID_FIXED_1,
12661         EL_MM_STEEL_GRID_FIXED_4,
12662         EL_MM_STEEL_GRID_FIXED_2,
12663         EL_MM_STEEL_GRID_FIXED_3
12664       },
12665       {
12666         EL_MM_WOODEN_GRID_FIXED_1,
12667         EL_MM_WOODEN_GRID_FIXED_4,
12668         EL_MM_WOODEN_GRID_FIXED_2,
12669         EL_MM_WOODEN_GRID_FIXED_3
12670       },
12671       {
12672         EL_MM_POLARIZER_CROSS_1,
12673         EL_MM_POLARIZER_CROSS_4,
12674         EL_MM_POLARIZER_CROSS_3,
12675         EL_MM_POLARIZER_CROSS_2
12676       },
12677       {
12678         EL_MM_PACMAN_UP,
12679         EL_MM_PACMAN_RIGHT,
12680         EL_MM_PACMAN_DOWN,
12681         EL_MM_PACMAN_LEFT
12682       },
12683       {
12684         EL_DF_LASER_UP,
12685         EL_DF_LASER_RIGHT,
12686         EL_DF_LASER_DOWN,
12687         EL_DF_LASER_LEFT
12688       },
12689       {
12690         EL_DF_RECEIVER_UP,
12691         EL_DF_RECEIVER_RIGHT,
12692         EL_DF_RECEIVER_DOWN,
12693         EL_DF_RECEIVER_LEFT
12694       },
12695       {
12696         EL_DF_SLOPE_1,
12697         EL_DF_SLOPE_4,
12698         EL_DF_SLOPE_3,
12699         EL_DF_SLOPE_2
12700       },
12701
12702       {
12703         -1,
12704       },
12705     };
12706     static int rotatable_elements_8[][8] =
12707     {
12708       {
12709         EL_DF_STEEL_GRID_FIXED_1,
12710         EL_DF_STEEL_GRID_FIXED_8,
12711         EL_DF_STEEL_GRID_FIXED_7,
12712         EL_DF_STEEL_GRID_FIXED_6,
12713         EL_DF_STEEL_GRID_FIXED_5,
12714         EL_DF_STEEL_GRID_FIXED_4,
12715         EL_DF_STEEL_GRID_FIXED_3,
12716         EL_DF_STEEL_GRID_FIXED_2
12717       },
12718       {
12719         EL_DF_WOODEN_GRID_FIXED_1,
12720         EL_DF_WOODEN_GRID_FIXED_8,
12721         EL_DF_WOODEN_GRID_FIXED_7,
12722         EL_DF_WOODEN_GRID_FIXED_6,
12723         EL_DF_WOODEN_GRID_FIXED_5,
12724         EL_DF_WOODEN_GRID_FIXED_4,
12725         EL_DF_WOODEN_GRID_FIXED_3,
12726         EL_DF_WOODEN_GRID_FIXED_2
12727       },
12728       {
12729         EL_DF_STEEL_GRID_ROTATING_1,
12730         EL_DF_STEEL_GRID_ROTATING_8,
12731         EL_DF_STEEL_GRID_ROTATING_7,
12732         EL_DF_STEEL_GRID_ROTATING_6,
12733         EL_DF_STEEL_GRID_ROTATING_5,
12734         EL_DF_STEEL_GRID_ROTATING_4,
12735         EL_DF_STEEL_GRID_ROTATING_3,
12736         EL_DF_STEEL_GRID_ROTATING_2
12737       },
12738       {
12739         EL_DF_WOODEN_GRID_ROTATING_1,
12740         EL_DF_WOODEN_GRID_ROTATING_8,
12741         EL_DF_WOODEN_GRID_ROTATING_7,
12742         EL_DF_WOODEN_GRID_ROTATING_6,
12743         EL_DF_WOODEN_GRID_ROTATING_5,
12744         EL_DF_WOODEN_GRID_ROTATING_4,
12745         EL_DF_WOODEN_GRID_ROTATING_3,
12746         EL_DF_WOODEN_GRID_ROTATING_2
12747       },
12748
12749       {
12750         -1,
12751       },
12752     };
12753     static int rotatable_elements_16[][16] =
12754     {
12755       {
12756         EL_MM_MIRROR_1,
12757         EL_MM_MIRROR_16,
12758         EL_MM_MIRROR_15,
12759         EL_MM_MIRROR_14,
12760         EL_MM_MIRROR_13,
12761         EL_MM_MIRROR_12,
12762         EL_MM_MIRROR_11,
12763         EL_MM_MIRROR_10,
12764         EL_MM_MIRROR_9,
12765         EL_MM_MIRROR_8,
12766         EL_MM_MIRROR_7,
12767         EL_MM_MIRROR_6,
12768         EL_MM_MIRROR_5,
12769         EL_MM_MIRROR_4,
12770         EL_MM_MIRROR_3,
12771         EL_MM_MIRROR_2
12772       },
12773       {
12774         EL_MM_TELEPORTER_5,
12775         EL_MM_TELEPORTER_4,
12776         EL_MM_TELEPORTER_3,
12777         EL_MM_TELEPORTER_2,
12778         EL_MM_TELEPORTER_1,
12779         EL_MM_TELEPORTER_16,
12780         EL_MM_TELEPORTER_15,
12781         EL_MM_TELEPORTER_14,
12782         EL_MM_TELEPORTER_13,
12783         EL_MM_TELEPORTER_12,
12784         EL_MM_TELEPORTER_11,
12785         EL_MM_TELEPORTER_10,
12786         EL_MM_TELEPORTER_9,
12787         EL_MM_TELEPORTER_8,
12788         EL_MM_TELEPORTER_7,
12789         EL_MM_TELEPORTER_6
12790       },
12791       {
12792         EL_MM_TELEPORTER_RED_5,
12793         EL_MM_TELEPORTER_RED_4,
12794         EL_MM_TELEPORTER_RED_3,
12795         EL_MM_TELEPORTER_RED_2,
12796         EL_MM_TELEPORTER_RED_1,
12797         EL_MM_TELEPORTER_RED_16,
12798         EL_MM_TELEPORTER_RED_15,
12799         EL_MM_TELEPORTER_RED_14,
12800         EL_MM_TELEPORTER_RED_13,
12801         EL_MM_TELEPORTER_RED_12,
12802         EL_MM_TELEPORTER_RED_11,
12803         EL_MM_TELEPORTER_RED_10,
12804         EL_MM_TELEPORTER_RED_9,
12805         EL_MM_TELEPORTER_RED_8,
12806         EL_MM_TELEPORTER_RED_7,
12807         EL_MM_TELEPORTER_RED_6
12808       },
12809       {
12810         EL_MM_TELEPORTER_YELLOW_5,
12811         EL_MM_TELEPORTER_YELLOW_4,
12812         EL_MM_TELEPORTER_YELLOW_3,
12813         EL_MM_TELEPORTER_YELLOW_2,
12814         EL_MM_TELEPORTER_YELLOW_1,
12815         EL_MM_TELEPORTER_YELLOW_16,
12816         EL_MM_TELEPORTER_YELLOW_15,
12817         EL_MM_TELEPORTER_YELLOW_14,
12818         EL_MM_TELEPORTER_YELLOW_13,
12819         EL_MM_TELEPORTER_YELLOW_12,
12820         EL_MM_TELEPORTER_YELLOW_11,
12821         EL_MM_TELEPORTER_YELLOW_10,
12822         EL_MM_TELEPORTER_YELLOW_9,
12823         EL_MM_TELEPORTER_YELLOW_8,
12824         EL_MM_TELEPORTER_YELLOW_7,
12825         EL_MM_TELEPORTER_YELLOW_6
12826       },
12827       {
12828         EL_MM_TELEPORTER_GREEN_5,
12829         EL_MM_TELEPORTER_GREEN_4,
12830         EL_MM_TELEPORTER_GREEN_3,
12831         EL_MM_TELEPORTER_GREEN_2,
12832         EL_MM_TELEPORTER_GREEN_1,
12833         EL_MM_TELEPORTER_GREEN_16,
12834         EL_MM_TELEPORTER_GREEN_15,
12835         EL_MM_TELEPORTER_GREEN_14,
12836         EL_MM_TELEPORTER_GREEN_13,
12837         EL_MM_TELEPORTER_GREEN_12,
12838         EL_MM_TELEPORTER_GREEN_11,
12839         EL_MM_TELEPORTER_GREEN_10,
12840         EL_MM_TELEPORTER_GREEN_9,
12841         EL_MM_TELEPORTER_GREEN_8,
12842         EL_MM_TELEPORTER_GREEN_7,
12843         EL_MM_TELEPORTER_GREEN_6
12844       },
12845       {
12846         EL_MM_TELEPORTER_BLUE_5,
12847         EL_MM_TELEPORTER_BLUE_4,
12848         EL_MM_TELEPORTER_BLUE_3,
12849         EL_MM_TELEPORTER_BLUE_2,
12850         EL_MM_TELEPORTER_BLUE_1,
12851         EL_MM_TELEPORTER_BLUE_16,
12852         EL_MM_TELEPORTER_BLUE_15,
12853         EL_MM_TELEPORTER_BLUE_14,
12854         EL_MM_TELEPORTER_BLUE_13,
12855         EL_MM_TELEPORTER_BLUE_12,
12856         EL_MM_TELEPORTER_BLUE_11,
12857         EL_MM_TELEPORTER_BLUE_10,
12858         EL_MM_TELEPORTER_BLUE_9,
12859         EL_MM_TELEPORTER_BLUE_8,
12860         EL_MM_TELEPORTER_BLUE_7,
12861         EL_MM_TELEPORTER_BLUE_6
12862       },
12863       {
12864         EL_MM_POLARIZER_1,
12865         EL_MM_POLARIZER_16,
12866         EL_MM_POLARIZER_15,
12867         EL_MM_POLARIZER_14,
12868         EL_MM_POLARIZER_13,
12869         EL_MM_POLARIZER_12,
12870         EL_MM_POLARIZER_11,
12871         EL_MM_POLARIZER_10,
12872         EL_MM_POLARIZER_9,
12873         EL_MM_POLARIZER_8,
12874         EL_MM_POLARIZER_7,
12875         EL_MM_POLARIZER_6,
12876         EL_MM_POLARIZER_5,
12877         EL_MM_POLARIZER_4,
12878         EL_MM_POLARIZER_3,
12879         EL_MM_POLARIZER_2
12880       },
12881       {
12882         EL_DF_MIRROR_1,
12883         EL_DF_MIRROR_16,
12884         EL_DF_MIRROR_15,
12885         EL_DF_MIRROR_14,
12886         EL_DF_MIRROR_13,
12887         EL_DF_MIRROR_12,
12888         EL_DF_MIRROR_11,
12889         EL_DF_MIRROR_10,
12890         EL_DF_MIRROR_9,
12891         EL_DF_MIRROR_8,
12892         EL_DF_MIRROR_7,
12893         EL_DF_MIRROR_6,
12894         EL_DF_MIRROR_5,
12895         EL_DF_MIRROR_4,
12896         EL_DF_MIRROR_3,
12897         EL_DF_MIRROR_2
12898       },
12899       {
12900         EL_DF_MIRROR_ROTATING_1,
12901         EL_DF_MIRROR_ROTATING_16,
12902         EL_DF_MIRROR_ROTATING_15,
12903         EL_DF_MIRROR_ROTATING_14,
12904         EL_DF_MIRROR_ROTATING_13,
12905         EL_DF_MIRROR_ROTATING_12,
12906         EL_DF_MIRROR_ROTATING_11,
12907         EL_DF_MIRROR_ROTATING_10,
12908         EL_DF_MIRROR_ROTATING_9,
12909         EL_DF_MIRROR_ROTATING_8,
12910         EL_DF_MIRROR_ROTATING_7,
12911         EL_DF_MIRROR_ROTATING_6,
12912         EL_DF_MIRROR_ROTATING_5,
12913         EL_DF_MIRROR_ROTATING_4,
12914         EL_DF_MIRROR_ROTATING_3,
12915         EL_DF_MIRROR_ROTATING_2
12916       },
12917       {
12918         EL_DF_MIRROR_FIXED_1,
12919         EL_DF_MIRROR_FIXED_16,
12920         EL_DF_MIRROR_FIXED_15,
12921         EL_DF_MIRROR_FIXED_14,
12922         EL_DF_MIRROR_FIXED_13,
12923         EL_DF_MIRROR_FIXED_12,
12924         EL_DF_MIRROR_FIXED_11,
12925         EL_DF_MIRROR_FIXED_10,
12926         EL_DF_MIRROR_FIXED_9,
12927         EL_DF_MIRROR_FIXED_8,
12928         EL_DF_MIRROR_FIXED_7,
12929         EL_DF_MIRROR_FIXED_6,
12930         EL_DF_MIRROR_FIXED_5,
12931         EL_DF_MIRROR_FIXED_4,
12932         EL_DF_MIRROR_FIXED_3,
12933         EL_DF_MIRROR_FIXED_2
12934       },
12935
12936       {
12937         -1,
12938       },
12939     };
12940     int i, j;
12941
12942     for (i = 0; swappable_elements[i][0] != -1; i++)
12943     {
12944       int element1 = swappable_elements[i][0];
12945       int element2 = swappable_elements[i][1];
12946
12947       if (old_element == element1 || old_element == element2)
12948         new_element = (old_element == element1 ? element2 : element1);
12949     }
12950
12951     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
12952     {
12953       for (j = 0; j < 4; j++)
12954       {
12955         int element = rotatable_elements_4[i][j];
12956
12957         if (old_element == element)
12958           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
12959                          button == 2 ? rotatable_elements_4[i][0]           :
12960                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
12961                          old_element);
12962       }
12963     }
12964
12965     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
12966     {
12967       for (j = 0; j < 8; j++)
12968       {
12969         int element = rotatable_elements_8[i][j];
12970
12971         if (old_element == element)
12972           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
12973                          button == 2 ? rotatable_elements_8[i][0]           :
12974                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
12975                          old_element);
12976       }
12977     }
12978
12979     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
12980     {
12981       for (j = 0; j < 16; j++)
12982       {
12983         int element = rotatable_elements_16[i][j];
12984
12985         if (old_element == element)
12986           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
12987                          button == 2 ? rotatable_elements_16[i][0]             :
12988                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
12989                          old_element);
12990       }
12991     }
12992
12993     if (old_element != new_element)
12994     {
12995       int max_infotext_len = getMaxInfoTextLength();
12996       char infotext[MAX_OUTPUT_LINESIZE + 1];
12997
12998       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
12999       infotext[max_infotext_len] = '\0';
13000
13001       ClearEditorGadgetInfoText();
13002
13003       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
13004                 infotext);
13005     }
13006   }
13007
13008   if (IS_MM_WALL_EDITOR(new_element))
13009     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
13010   else
13011     SetElementSimple(x, y, new_element, change_level);
13012
13013   last_x = x;
13014   last_y = y;
13015 }
13016
13017 static void ResetIntelliDraw(void)
13018 {
13019   int x, y;
13020
13021   for (x = 0; x < lev_fieldx; x++)
13022     for (y = 0; y < lev_fieldy; y++)
13023       IntelliDrawBuffer[x][y] = Tile[x][y];
13024
13025   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
13026 }
13027
13028 static boolean draw_mode_hires = FALSE;
13029
13030 static boolean isHiresTileElement(int element)
13031 {
13032   return (IS_MM_WALL(element)        || element == EL_EMPTY);
13033 }
13034
13035 static boolean isHiresDrawElement(int element)
13036 {
13037   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
13038 }
13039
13040 static int numHiresTiles(int element)
13041 {
13042   if (IS_MM_WALL(element))
13043     return get_number_of_bits(MM_WALL_BITS(element));
13044
13045   return 1;
13046 }
13047
13048 static void SetDrawModeHiRes(int element)
13049 {
13050   draw_mode_hires =
13051     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13052      isHiresDrawElement(element));
13053 }
13054
13055 static boolean getDrawModeHiRes(void)
13056 {
13057   return draw_mode_hires;
13058 }
13059
13060 static int getLoResScreenPos(int pos)
13061 {
13062   return (getDrawModeHiRes() ? pos / 2 : pos);
13063 }
13064
13065 static int getLoResScreenMod(int pos)
13066 {
13067   return (getDrawModeHiRes() ? pos % 2 : 0);
13068 }
13069
13070 static void SetElementExt(int x, int y, int dx, int dy, int element,
13071                           boolean change_level, int button)
13072 {
13073   if (element < 0)
13074     SetElementSimple(x, y, Tile[x][y], change_level);
13075   else if (GetKeyModState() & KMOD_Shift)
13076     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
13077   else
13078     SetElementSimpleExt(x, y, dx, dy, element, change_level);
13079 }
13080
13081 static void SetElement(int x, int y, int element)
13082 {
13083   SetElementExt(x, y, 0, 0, element, TRUE, -1);
13084 }
13085
13086 static void SetElementButton(int x, int y, int dx, int dy, int element,
13087                              int button)
13088 {
13089   SetElementExt(x, y, dx, dy, element, TRUE, button);
13090 }
13091
13092 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
13093 {
13094   int lx = getLoResScreenPos(sx2) + level_xpos;
13095   int ly = getLoResScreenPos(sy2) + level_ypos;
13096   int dx = getLoResScreenMod(sx2);
13097   int dy = getLoResScreenMod(sy2);
13098
13099   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
13100 }
13101
13102 static void SetLevelElementHiRes(int lx2, int ly2, int element)
13103 {
13104   int lx = lx2 / 2;
13105   int ly = ly2 / 2;
13106   int dx = lx2 % 2;
13107   int dy = ly2 % 2;
13108
13109   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
13110 }
13111
13112 static int getLevelElementHiRes(int lx2, int ly2)
13113 {
13114   int lx = lx2 / 2;
13115   int ly = ly2 / 2;
13116   int dx = lx2 % 2;
13117   int dy = ly2 % 2;
13118   int element = Tile[lx][ly];
13119   unsigned int bitmask = (dx + 1) << (dy * 2);
13120
13121   if (IS_MM_WALL(element))
13122   {
13123     if (element & bitmask)
13124       return map_mm_wall_element(element);
13125     else
13126       return EL_EMPTY;
13127   }
13128
13129   return element;
13130 }
13131
13132 static void DrawLineElement(int x, int y, int element, boolean change_level)
13133 {
13134   SetElementHiRes(x, y, element, change_level);
13135 }
13136
13137 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
13138                      int element, boolean change_level)
13139 {
13140   int xsize = ABS(to_x - from_x);
13141   int ysize = ABS(to_y - from_y);
13142   int dx = (to_x < from_x ? -1 : +1);
13143   int dy = (to_y < from_y ? -1 : +1);
13144   int i;
13145
13146   if (from_y == to_y)                   // horizontal line
13147   {
13148     for (i = 0; i <= xsize; i++)
13149       DrawLineElement(from_x + i * dx, from_y, element, change_level);
13150   }
13151   else if (from_x == to_x)              // vertical line
13152   {
13153     for (i = 0; i <= ysize; i++)
13154       DrawLineElement(from_x, from_y + i * dy, element, change_level);
13155   }
13156   else                                  // diagonal line
13157   {
13158     if (ysize < xsize)                  // a < 1
13159     {
13160       float a = (float)ysize / (float)xsize;
13161
13162       for (i = 0; i <= xsize; i++)
13163       {
13164         int x = dx * i;
13165         int y = dy * (int)(a * i + 0.5);
13166
13167         DrawLineElement(from_x + x, from_y + y, element, change_level);
13168       }
13169     }
13170     else                                // a >= 1
13171     {
13172       float a = (float)xsize / (float)ysize;
13173
13174       for (i = 0; i <= ysize; i++)
13175       {
13176         int x = dx * (int)(a * i + 0.5);
13177         int y = dy * i;
13178
13179         DrawLineElement(from_x + x, from_y + y, element, change_level);
13180       }
13181     }
13182   }
13183 }
13184
13185 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
13186                     int element, boolean change_level)
13187 {
13188   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
13189   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
13190   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
13191   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
13192 }
13193
13194 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
13195                           int element, boolean change_level)
13196 {
13197   int y;
13198
13199   if (from_y > to_y)
13200     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
13201
13202   for (y = from_y; y <= to_y; y++)
13203     DrawLine(from_x, y, to_x, y, element, change_level);
13204 }
13205
13206 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
13207                        int element, boolean change_level)
13208 {
13209   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
13210   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
13211   int len_x = ABS(to_x - from_x);
13212   int len_y = ABS(to_y - from_y);
13213   int radius, x, y;
13214
13215   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
13216
13217   // not optimal (some points get drawn twice) but simple,
13218   // and fast enough for the few points we are drawing
13219
13220   for (x = 0; x <= radius; x++)
13221   {
13222     int sx, sy, sx2, sy2, lx, ly;
13223
13224     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
13225
13226     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13227     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13228     sx = getLoResScreenPos(sx2);
13229     sy = getLoResScreenPos(sy2);
13230     lx = sx + level_xpos;
13231     ly = sy + level_ypos;
13232
13233     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13234       DrawLineElement(sx2, sy2, element, change_level);
13235   }
13236
13237   for (y = 0; y <= radius; y++)
13238   {
13239     int sx, sy, sx2, sy2, lx, ly;
13240
13241     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
13242
13243     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13244     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13245     sx = getLoResScreenPos(sx2);
13246     sy = getLoResScreenPos(sy2);
13247     lx = sx + level_xpos;
13248     ly = sy + level_ypos;
13249
13250     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13251       DrawLineElement(sx2, sy2, element, change_level);
13252   }
13253 }
13254
13255 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
13256                     int element, boolean change_level)
13257 {
13258   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13259   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13260
13261   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13262 }
13263
13264 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
13265
13266 #if DRAW_CIRCLES_BUTTON_AVAILABLE
13267 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
13268                        int element, boolean change_level)
13269 {
13270   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13271   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13272   int mirror_to_x2 = from_x - (to_x2 - from_x);
13273   int mirror_to_y2 = from_y - (to_y2 - from_y);
13274
13275   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13276   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
13277   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
13278   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element, change_level);
13279 }
13280 #endif
13281
13282 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
13283 {
13284   int from_sx, from_sy;
13285   int to_sx, to_sy;
13286
13287   if (from_x > to_x)
13288     swap_numbers(&from_x, &to_x);
13289
13290   if (from_y > to_y)
13291     swap_numbers(&from_y, &to_y);
13292
13293   from_sx = SX + from_x * ed_tilesize;
13294   from_sy = SY + from_y * ed_tilesize;
13295   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
13296   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
13297
13298   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
13299   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
13300   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
13301   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
13302
13303   if (from_x == to_x && from_y == to_y)
13304     MarkTileDirty(from_x/2, from_y/2);
13305   else
13306     redraw_mask |= REDRAW_FIELD;
13307 }
13308
13309 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
13310                         int element, boolean change_level)
13311 {
13312   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
13313 }
13314
13315 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
13316                        int element, boolean change_level)
13317 {
13318   if (element == -1 || change_level)
13319     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
13320   else
13321     DrawAreaBorder(from_x, from_y, to_x, to_y);
13322 }
13323
13324 // values for CopyBrushExt()
13325 #define CB_AREA_TO_BRUSH                0
13326 #define CB_BRUSH_TO_CURSOR              1
13327 #define CB_BRUSH_TO_LEVEL               2
13328 #define CB_DELETE_OLD_CURSOR            3
13329 #define CB_DUMP_BRUSH                   4
13330 #define CB_DUMP_BRUSH_SMALL             5
13331 #define CB_CLIPBOARD_TO_BRUSH           6
13332 #define CB_BRUSH_TO_CLIPBOARD           7
13333 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
13334 #define CB_UPDATE_BRUSH_POSITION        9
13335 #define CB_FLIP_BRUSH_X                 10
13336 #define CB_FLIP_BRUSH_Y                 11
13337 #define CB_FLIP_BRUSH_XY                12
13338
13339 #define MAX_CB_PART_SIZE        10
13340 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
13341 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
13342 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
13343                                  MAX_CB_NUM_LINES *     \
13344                                  MAX_CB_PART_SIZE)
13345
13346 static int getFlippedTileExt(int map[], int element)
13347 {
13348   int i;
13349
13350   for (i = 0; map[i] != -1; i++)
13351     if (map[i] == element)
13352       return map[i ^ 1];        // get flipped element by flipping LSB of index
13353
13354   return element;
13355 }
13356
13357 static int getFlippedTileX(int element)
13358 {
13359   int map[] =
13360   {
13361     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_RIGHT,
13362     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_RIGHT,
13363     EL_BUG_LEFT,                        EL_BUG_RIGHT,
13364     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_RIGHT,
13365     EL_PACMAN_LEFT,                     EL_PACMAN_RIGHT,
13366     EL_ARROW_LEFT,                      EL_ARROW_RIGHT,
13367     EL_MOLE_LEFT,                       EL_MOLE_RIGHT,
13368     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_RIGHT,
13369     EL_YAMYAM_LEFT,                     EL_YAMYAM_RIGHT,
13370     EL_SP_PORT_LEFT,                    EL_SP_PORT_RIGHT,
13371     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_RIGHT,
13372     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_RIGHT,
13373     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_RIGHT,
13374     EL_CONVEYOR_BELT_1_LEFT,            EL_CONVEYOR_BELT_1_RIGHT,
13375     EL_CONVEYOR_BELT_2_LEFT,            EL_CONVEYOR_BELT_2_RIGHT,
13376     EL_CONVEYOR_BELT_3_LEFT,            EL_CONVEYOR_BELT_3_RIGHT,
13377     EL_CONVEYOR_BELT_4_LEFT,            EL_CONVEYOR_BELT_4_RIGHT,
13378     EL_SPRING_LEFT,                     EL_SPRING_RIGHT,
13379     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_RIGHT,
13380     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_VERTICAL_RIGHT,
13381     EL_TUBE_LEFT_UP,                    EL_TUBE_RIGHT_UP,
13382     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_DOWN,
13383     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_RIGHT,
13384     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_TOPRIGHT,
13385     EL_DC_STEELWALL_1_BOTTOMLEFT,       EL_DC_STEELWALL_1_BOTTOMRIGHT,
13386     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_TOPRIGHT_2,
13387     EL_DC_STEELWALL_1_BOTTOMLEFT_2,     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13388     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_RIGHT,
13389     EL_ACID_POOL_TOPLEFT,               EL_ACID_POOL_TOPRIGHT,
13390     EL_ACID_POOL_BOTTOMLEFT,            EL_ACID_POOL_BOTTOMRIGHT,
13391
13392     -1
13393   };
13394
13395   return getFlippedTileExt(map, element);
13396 }
13397
13398 static int getFlippedTileY(int element)
13399 {
13400   int map[] =
13401   {
13402     EL_BD_BUTTERFLY_UP,                 EL_BD_BUTTERFLY_DOWN,
13403     EL_BD_FIREFLY_UP,                   EL_BD_FIREFLY_DOWN,
13404     EL_BUG_UP,                          EL_BUG_DOWN,
13405     EL_SPACESHIP_UP,                    EL_SPACESHIP_DOWN,
13406     EL_PACMAN_UP,                       EL_PACMAN_DOWN,
13407     EL_ARROW_UP,                        EL_ARROW_DOWN,
13408     EL_MOLE_UP,                         EL_MOLE_DOWN,
13409     EL_BALLOON_SWITCH_UP,               EL_BALLOON_SWITCH_DOWN,
13410     EL_YAMYAM_UP,                       EL_YAMYAM_DOWN,
13411     EL_SP_PORT_UP,                      EL_SP_PORT_DOWN,
13412     EL_SP_GRAVITY_PORT_UP,              EL_SP_GRAVITY_PORT_DOWN,
13413     EL_SP_GRAVITY_ON_PORT_UP,           EL_SP_GRAVITY_ON_PORT_DOWN,
13414     EL_SP_GRAVITY_OFF_PORT_UP,          EL_SP_GRAVITY_OFF_PORT_DOWN,
13415     EL_SP_CHIP_TOP,                     EL_SP_CHIP_BOTTOM,
13416     EL_TUBE_HORIZONTAL_UP,              EL_TUBE_HORIZONTAL_DOWN,
13417     EL_TUBE_LEFT_UP,                    EL_TUBE_LEFT_DOWN,
13418     EL_TUBE_RIGHT_UP,                   EL_TUBE_RIGHT_DOWN,
13419     EL_DC_STEELWALL_1_TOP,              EL_DC_STEELWALL_1_BOTTOM,
13420     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_BOTTOMLEFT,
13421     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMRIGHT,
13422     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13423     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13424     EL_DC_STEELWALL_2_TOP,              EL_DC_STEELWALL_2_BOTTOM,
13425     EL_EMC_WALL_1,                      EL_EMC_WALL_3,
13426
13427     -1
13428   };
13429
13430   return getFlippedTileExt(map, element);
13431 }
13432
13433 static int getFlippedTileXY(int element)
13434 {
13435   int map[] =
13436   {
13437     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_UP,
13438     EL_BD_BUTTERFLY_RIGHT,              EL_BD_BUTTERFLY_DOWN,
13439     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_UP,
13440     EL_BD_FIREFLY_RIGHT,                EL_BD_FIREFLY_DOWN,
13441     EL_BUG_LEFT,                        EL_BUG_UP,
13442     EL_BUG_RIGHT,                       EL_BUG_DOWN,
13443     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_UP,
13444     EL_SPACESHIP_RIGHT,                 EL_SPACESHIP_DOWN,
13445     EL_PACMAN_LEFT,                     EL_PACMAN_UP,
13446     EL_PACMAN_RIGHT,                    EL_PACMAN_DOWN,
13447     EL_ARROW_LEFT,                      EL_ARROW_UP,
13448     EL_ARROW_RIGHT,                     EL_ARROW_DOWN,
13449     EL_MOLE_LEFT,                       EL_MOLE_UP,
13450     EL_MOLE_RIGHT,                      EL_MOLE_DOWN,
13451     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_UP,
13452     EL_BALLOON_SWITCH_RIGHT,            EL_BALLOON_SWITCH_DOWN,
13453     EL_YAMYAM_LEFT,                     EL_YAMYAM_UP,
13454     EL_YAMYAM_RIGHT,                    EL_YAMYAM_DOWN,
13455     EL_SP_PORT_LEFT,                    EL_SP_PORT_UP,
13456     EL_SP_PORT_RIGHT,                   EL_SP_PORT_DOWN,
13457     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_UP,
13458     EL_SP_GRAVITY_PORT_RIGHT,           EL_SP_GRAVITY_PORT_DOWN,
13459     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_UP,
13460     EL_SP_GRAVITY_ON_PORT_RIGHT,        EL_SP_GRAVITY_ON_PORT_DOWN,
13461     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_UP,
13462     EL_SP_GRAVITY_OFF_PORT_RIGHT,       EL_SP_GRAVITY_OFF_PORT_DOWN,
13463     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_TOP,
13464     EL_SP_CHIP_RIGHT,                   EL_SP_CHIP_BOTTOM,
13465     EL_TUBE_VERTICAL,                   EL_TUBE_HORIZONTAL,
13466     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_HORIZONTAL_UP,
13467     EL_TUBE_VERTICAL_RIGHT,             EL_TUBE_HORIZONTAL_DOWN,
13468     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_UP,
13469     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_TOP,
13470     EL_DC_STEELWALL_1_RIGHT,            EL_DC_STEELWALL_1_BOTTOM,
13471     EL_DC_STEELWALL_1_HORIZONTAL,       EL_DC_STEELWALL_1_VERTICAL,
13472     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMLEFT,
13473     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13474     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_TOP,
13475     EL_DC_STEELWALL_2_RIGHT,            EL_DC_STEELWALL_2_BOTTOM,
13476     EL_DC_STEELWALL_2_HORIZONTAL,       EL_DC_STEELWALL_2_VERTICAL,
13477     EL_EXPANDABLE_WALL_HORIZONTAL,      EL_EXPANDABLE_WALL_VERTICAL,
13478     EL_EXPANDABLE_STEELWALL_HORIZONTAL, EL_EXPANDABLE_STEELWALL_VERTICAL,
13479
13480     -1
13481   };
13482
13483   return getFlippedTileExt(map, element);
13484 }
13485
13486 static int getFlippedTile(int element, int mode)
13487 {
13488   if (IS_MM_ELEMENT(element))
13489   {
13490     // get MM game element
13491     element = map_element_RND_to_MM(element);
13492
13493     // get flipped game element
13494     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX_MM(element) :
13495                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY_MM(element) :
13496                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY_MM(element) :
13497                element);
13498
13499     // get RND game element again
13500     element = map_element_MM_to_RND(element);
13501   }
13502   else
13503   {
13504     // get flipped game element
13505     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX(element) :
13506                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY(element) :
13507                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY(element) :
13508                element);
13509   }
13510
13511   return element;
13512 }
13513
13514 static void SwapFlippedTiles(short *tile1, short *tile2, int mode)
13515 {
13516   // flip tiles
13517   short tile1_flipped = getFlippedTile(*tile1, mode);
13518   short tile2_flipped = getFlippedTile(*tile2, mode);
13519
13520   // swap tiles
13521   *tile1 = tile2_flipped;
13522   *tile2 = tile1_flipped;
13523 }
13524
13525 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
13526 {
13527   DrawLineElement(sx, sy, element, change_level);
13528 }
13529
13530 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
13531                          int button, int mode)
13532 {
13533   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
13534   static int brush_width, brush_height;
13535   static int last_cursor_x = -1, last_cursor_y = -1;
13536   static boolean delete_old_brush = FALSE;
13537   int new_element = BUTTON_ELEMENT(button);
13538   int x, y;
13539
13540   if (mode == CB_DUMP_BRUSH ||
13541       mode == CB_DUMP_BRUSH_SMALL ||
13542       mode == CB_BRUSH_TO_CLIPBOARD ||
13543       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13544   {
13545     if (edit_mode != ED_MODE_DRAWING)
13546       return;
13547
13548     char part[MAX_CB_PART_SIZE + 1] = "";
13549     char text[MAX_CB_TEXT_SIZE + 1] = "";
13550     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
13551     int height = (draw_with_brush ? brush_height : lev_fieldy);
13552     char *format = "%s%03d";
13553
13554     for (y = 0; y < height; y++)
13555       for (x = 0; x < width; x++)
13556         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
13557           format = "%s%04d";
13558
13559     for (y = 0; y < height; y++)
13560     {
13561       for (x = 0; x < width; x++)
13562       {
13563         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
13564         char *prefix = (mode == CB_DUMP_BRUSH ||
13565                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
13566
13567         if (element >= NUM_FILE_ELEMENTS)
13568           element = EL_UNKNOWN;
13569
13570         // copy brush to level sketch text buffer for the R'n'D forum:
13571         // - large tiles: `xxx or `xxxx (0x60 ASCII)
13572         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
13573         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
13574         strcat(text, part);
13575       }
13576
13577       strcat(text, "\n");
13578     }
13579
13580     if (mode == CB_BRUSH_TO_CLIPBOARD ||
13581         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13582       SDL_SetClipboardText(text);
13583     else
13584       Print("%s", text);        // print brush data to console and log file
13585
13586     return;
13587   }
13588
13589   if (mode == CB_CLIPBOARD_TO_BRUSH)
13590   {
13591     if (edit_mode != ED_MODE_DRAWING)
13592       return;
13593
13594     if (!SDL_HasClipboardText())
13595     {
13596       Request("Clipboard is empty!", REQ_CONFIRM);
13597
13598       return;
13599     }
13600
13601     boolean copy_to_brush = (draw_with_brush ||
13602                              drawing_function == GADGET_ID_GRAB_BRUSH);
13603
13604     // this will delete the old brush, if already drawing with a brush
13605     if (copy_to_brush)
13606       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
13607
13608     // initialization is required for "odd" (incomplete) clipboard content
13609     for (x = 0; x < MAX_LEV_FIELDX; x++)
13610       for (y = 0; y < MAX_LEV_FIELDY; y++)
13611         brush_buffer[x][y] = EL_EMPTY;
13612
13613     brush_width  = 0;
13614     brush_height = 0;
13615     x = 0;
13616     y = 0;
13617
13618     char *clipboard_text = SDL_GetClipboardText();
13619     char *ptr = clipboard_text;
13620     boolean allow_new_row = FALSE;
13621     boolean stop = FALSE;
13622
13623     while (*ptr && !stop)
13624     {
13625       boolean prefix_found = FALSE;
13626       boolean start_new_row = FALSE;
13627
13628       // level sketch element number prefixes (may be multi-byte characters)
13629       char *prefix_list[] = { "`", "¸" };
13630       int i;
13631
13632       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
13633       {
13634         char *prefix = prefix_list[i];
13635
13636         // check if string is large enough for prefix
13637         if (strlen(ptr) < strlen(prefix))
13638         {
13639           stop = TRUE;
13640
13641           break;
13642         }
13643
13644         // check if string starts with prefix
13645         if (strPrefix(ptr, prefix))
13646         {
13647           ptr += strlen(prefix);
13648
13649           prefix_found = TRUE;
13650
13651           break;
13652         }
13653       }
13654
13655       // check if prefix found and followed by (at least) three digits
13656       if (prefix_found &&
13657           strlen(ptr) >= 3 &&
13658           ptr[0] >= '0' && ptr[0] <= '9' &&
13659           ptr[1] >= '0' && ptr[1] <= '9' &&
13660           ptr[2] >= '0' && ptr[2] <= '9')
13661       {
13662         int element = ((ptr[0] - '0') * 100 +
13663                        (ptr[1] - '0') * 10 +
13664                        (ptr[2] - '0'));
13665
13666         ptr += 3;
13667
13668         // level sketch element number might consist of four digits
13669         if (ptr[0] >= '0' && ptr[0] <= '9')
13670         {
13671           element = element * 10 + (ptr[0] - '0');
13672           ptr++;
13673         }
13674
13675         // remap some (historic, now obsolete) elements
13676         element = getMappedElement(element);
13677
13678         if (element >= NUM_FILE_ELEMENTS)
13679           element = EL_UNKNOWN;
13680
13681         brush_buffer[x][y] = element;
13682
13683         brush_width  = MAX(x + 1, brush_width);
13684         brush_height = MAX(y + 1, brush_height);
13685
13686         x++;
13687
13688         if (x >= MAX_LEV_FIELDX)
13689           start_new_row = TRUE;
13690
13691         allow_new_row = TRUE;
13692       }
13693       else
13694       {
13695         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
13696           start_new_row = TRUE;
13697
13698         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
13699       }
13700
13701       if (start_new_row)
13702       {
13703         x = 0;
13704         y++;
13705
13706         if (y >= MAX_LEV_FIELDY)
13707           stop = TRUE;
13708
13709         allow_new_row = FALSE;
13710       }
13711     }
13712
13713     SDL_free(clipboard_text);
13714
13715     if (brush_width == 0 || brush_height == 0)
13716     {
13717       Request("No level sketch found in clipboard!", REQ_CONFIRM);
13718
13719       return;
13720     }
13721
13722     if (copy_to_brush)
13723     {
13724       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
13725       int mx, my;
13726
13727       SDL_GetMouseState(&mx, &my);
13728
13729       // if inside drawing area, activate and draw brush at last mouse position
13730       if (mx >= gi->x && mx < gi->x + gi->width &&
13731           my >= gi->y && my < gi->y + gi->height)
13732         CopyBrushToCursor(last_cursor_x, last_cursor_y);
13733
13734       draw_with_brush = TRUE;
13735     }
13736     else
13737     {
13738       char request[100];
13739
13740       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
13741               brush_width, brush_height);
13742
13743       if (!Request(request, REQ_ASK))
13744         return;
13745
13746       for (x = 0; x < MAX_LEV_FIELDX; x++)
13747         for (y = 0; y < MAX_LEV_FIELDY; y++)
13748           Tile[x][y] = brush_buffer[x][y];
13749
13750       lev_fieldx = level.fieldx = brush_width;
13751       lev_fieldy = level.fieldy = brush_height;
13752
13753       boolean use_bd_engine = TRUE;
13754       boolean use_em_engine = TRUE;
13755       boolean use_sp_engine = TRUE;
13756       boolean use_mm_engine = TRUE;
13757
13758       for (x = 0; x < MAX_LEV_FIELDX; x++)
13759       {
13760         for (y = 0; y < MAX_LEV_FIELDY; y++)
13761         {
13762           int element = Tile[x][y];
13763
13764           if (!IS_BD_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13765             use_bd_engine = FALSE;
13766
13767           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13768             use_em_engine = FALSE;
13769
13770           if (!IS_SP_ELEMENT(element))
13771             use_sp_engine = FALSE;
13772
13773           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
13774             use_mm_engine = FALSE;
13775         }
13776       }
13777
13778       level.game_engine_type = (use_bd_engine ? GAME_ENGINE_TYPE_BD :
13779                                 use_em_engine ? GAME_ENGINE_TYPE_EM :
13780                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
13781                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
13782                                 GAME_ENGINE_TYPE_RND);
13783
13784       // update element selection list
13785       ReinitializeElementList();
13786       ModifyEditorElementList();
13787
13788       SetBorderElement();
13789
13790       DrawEditModeWindow();
13791       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13792     }
13793
13794     return;
13795   }
13796
13797   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
13798     return;
13799
13800   if (mode == CB_AREA_TO_BRUSH)
13801   {
13802     int from_lx, from_ly;
13803
13804     if (from_x > to_x)
13805       swap_numbers(&from_x, &to_x);
13806
13807     if (from_y > to_y)
13808       swap_numbers(&from_y, &to_y);
13809
13810     brush_width = to_x - from_x + 1;
13811     brush_height = to_y - from_y + 1;
13812
13813     from_lx = from_x + level_xpos;
13814     from_ly = from_y + level_ypos;
13815
13816     for (y = 0; y < brush_height; y++)
13817     {
13818       for (x = 0; x < brush_width; x++)
13819       {
13820         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
13821
13822         if (button != 1)
13823           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
13824       }
13825     }
13826
13827     if (button != 1)
13828       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13829
13830     delete_old_brush = FALSE;
13831   }
13832   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
13833            mode == CB_BRUSH_TO_LEVEL)
13834   {
13835     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
13836     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
13837     int cursor_from_x = cursor_x - brush_width / 2;
13838     int cursor_from_y = cursor_y - brush_height / 2;
13839     int border_from_x = cursor_x, border_from_y = cursor_y;
13840     int border_to_x = cursor_x, border_to_y = cursor_y;
13841
13842     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
13843       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13844
13845     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
13846         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
13847     {
13848       delete_old_brush = FALSE;
13849
13850       return;
13851     }
13852
13853     for (y = 0; y < brush_height; y++)
13854     {
13855       for (x = 0; x < brush_width; x++)
13856       {
13857         int sx = cursor_from_x + x;
13858         int sy = cursor_from_y + y;
13859         int lx = sx + level_xpos;
13860         int ly = sy + level_ypos;
13861         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
13862         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
13863                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
13864                        brush_buffer[x][y] : new_element);
13865
13866         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13867         {
13868           if (sx < border_from_x)
13869             border_from_x = sx;
13870           else if (sx > border_to_x)
13871             border_to_x = sx;
13872           if (sy < border_from_y)
13873             border_from_y = sy;
13874           else if (sy > border_to_y)
13875             border_to_y = sy;
13876
13877           DrawBrushElement(sx, sy, element, change_level);
13878         }
13879       }
13880     }
13881
13882     if (mode != CB_DELETE_OLD_CURSOR)
13883       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
13884
13885     last_cursor_x = cursor_x;
13886     last_cursor_y = cursor_y;
13887
13888     delete_old_brush = TRUE;
13889   }
13890   else if (mode == CB_FLIP_BRUSH_X)
13891   {
13892     for (y = 0; y < brush_height; y++)
13893       for (x = 0; x < (brush_width + 1) / 2; x++)
13894         SwapFlippedTiles(&brush_buffer[x][y],
13895                          &brush_buffer[brush_width - x - 1][y], mode);
13896
13897     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13898   }
13899   else if (mode == CB_FLIP_BRUSH_Y)
13900   {
13901     for (y = 0; y < (brush_height + 1) / 2; y++)
13902       for (x = 0; x < brush_width; x++)
13903         SwapFlippedTiles(&brush_buffer[x][y],
13904                          &brush_buffer[x][brush_height - y - 1], mode);
13905
13906     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13907   }
13908   else if (mode == CB_FLIP_BRUSH_XY)
13909   {
13910     CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13911
13912     for (y = 0; y < MAX(brush_width, brush_height); y++)
13913       for (x = 0; x <= y; x++)
13914         SwapFlippedTiles(&brush_buffer[x][y],
13915                          &brush_buffer[y][x], mode);
13916
13917     swap_numbers(&brush_width, &brush_height);
13918
13919     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13920   }
13921
13922   if (mode == CB_UPDATE_BRUSH_POSITION)
13923   {
13924     last_cursor_x = from_x;
13925     last_cursor_y = from_y;
13926   }
13927 }
13928
13929 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
13930                             int button)
13931 {
13932   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
13933 }
13934
13935 static void CopyBrushToLevel(int x, int y, int button)
13936 {
13937   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
13938 }
13939
13940 static void CopyBrushToCursor(int x, int y)
13941 {
13942   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13943 }
13944
13945 static void UpdateBrushPosition(int x, int y)
13946 {
13947   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
13948 }
13949
13950 static void DeleteBrushFromCursor(void)
13951 {
13952   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13953 }
13954
13955 static void FlipBrushX(void)
13956 {
13957   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
13958 }
13959
13960 static void FlipBrushY(void)
13961 {
13962   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_Y);
13963 }
13964
13965 static void RotateBrush(void)
13966 {
13967   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_XY);
13968   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
13969 }
13970
13971 void DumpBrush(void)
13972 {
13973   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
13974 }
13975
13976 void DumpBrush_Small(void)
13977 {
13978   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
13979 }
13980
13981 void CopyClipboardToBrush(void)
13982 {
13983   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
13984 }
13985
13986 void CopyBrushToClipboard(void)
13987 {
13988   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
13989 }
13990
13991 void CopyBrushToClipboard_Small(void)
13992 {
13993   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
13994 }
13995
13996 void UndoLevelEditorOperation(void)
13997 {
13998   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
13999 }
14000
14001 void RedoLevelEditorOperation(void)
14002 {
14003   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14004 }
14005
14006 static void FloodFill(int from_x, int from_y, int fill_element)
14007 {
14008   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
14009 }
14010
14011 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
14012 {
14013   int from_x = from_sx2 + 2 * level_xpos;
14014   int from_y = from_sy2 + 2 * level_ypos;
14015   int max_fillx = lev_fieldx * 2;
14016   int max_filly = lev_fieldy * 2;
14017   short Fill[max_fillx][max_filly];
14018   int x, y;
14019
14020   for (x = 0; x < max_fillx; x++)
14021     for (y = 0; y < max_filly; y++)
14022       Fill[x][y] = getLevelElementHiRes(x, y);
14023
14024   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
14025                     Fill, max_fillx, max_filly);
14026
14027   for (x = 0; x < max_fillx; x++)
14028     for (y = 0; y < max_filly; y++)
14029       if (Fill[x][y] == fill_element)
14030         SetLevelElementHiRes(x, y, Fill[x][y]);
14031 }
14032
14033 // values for DrawLevelText() modes
14034 #define TEXT_INIT               0
14035 #define TEXT_SETCURSOR          1
14036 #define TEXT_WRITECHAR          2
14037 #define TEXT_BACKSPACE          3
14038 #define TEXT_NEWLINE            4
14039 #define TEXT_END                5
14040 #define TEXT_QUERY_TYPING       6
14041
14042 static int DrawLevelText(int sx, int sy, char letter, int mode)
14043 {
14044   static short delete_buffer[MAX_LEV_FIELDX];
14045   static int start_sx;
14046   static int last_sx, last_sy;
14047   static boolean typing = FALSE;
14048   int letter_element;
14049   int lx = 0, ly = 0;
14050
14051   // map lower case letters to upper case and convert special characters
14052   if (letter >= 'a' && letter <= 'z')
14053     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
14054   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
14055     letter_element = EL_CHAR_AUMLAUT;
14056   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
14057     letter_element = EL_CHAR_OUMLAUT;
14058   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
14059     letter_element = EL_CHAR_UUMLAUT;
14060   else if (letter == '^')
14061     letter_element = EL_CHAR_COPYRIGHT;
14062   else
14063     letter_element = EL_CHAR_ASCII0 + letter;
14064
14065   if (mode != TEXT_INIT)
14066   {
14067     if (!typing)
14068       return FALSE;
14069
14070     if (mode != TEXT_SETCURSOR)
14071     {
14072       sx = last_sx;
14073       sy = last_sy;
14074     }
14075
14076     lx = last_sx + level_xpos;
14077     ly = last_sy + level_ypos;
14078   }
14079
14080   switch (mode)
14081   {
14082     case TEXT_INIT:
14083       if (typing)
14084         DrawLevelText(0, 0, 0, TEXT_END);
14085
14086       typing = TRUE;
14087       start_sx = sx;
14088       last_sx = sx;
14089       last_sy = sy;
14090       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
14091       break;
14092
14093     case TEXT_SETCURSOR:
14094       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
14095       DrawAreaBorder(sx, sy, sx, sy);
14096       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
14097                      ed_tilesize, ed_tilesize);
14098       last_sx = sx;
14099       last_sy = sy;
14100       break;
14101
14102     case TEXT_WRITECHAR:
14103       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
14104       {
14105         if (new_element1 >= EL_STEEL_CHAR_START &&
14106             new_element1 <= EL_STEEL_CHAR_END)
14107           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
14108
14109         delete_buffer[sx - start_sx] = Tile[lx][ly];
14110         Tile[lx][ly] = letter_element;
14111
14112         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
14113           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
14114         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14115           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14116         else
14117           DrawLevelText(0, 0, 0, TEXT_END);
14118
14119         level.changed = TRUE;
14120       }
14121       break;
14122
14123     case TEXT_BACKSPACE:
14124       if (sx > start_sx)
14125       {
14126         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
14127         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
14128         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
14129       }
14130       break;
14131
14132     case TEXT_NEWLINE:
14133       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14134         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14135       else
14136         DrawLevelText(0, 0, 0, TEXT_END);
14137       break;
14138
14139     case TEXT_END:
14140       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14141       DrawEditorElement(sx, sy, Tile[lx][ly]);
14142       StopTextInput();
14143       typing = FALSE;
14144       break;
14145
14146     case TEXT_QUERY_TYPING:
14147       break;
14148
14149     default:
14150       break;
14151   }
14152
14153   return typing;
14154 }
14155
14156 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
14157                           int element, boolean change_level)
14158 {
14159   int lx = sx + level_xpos;
14160   int ly = sy + level_ypos;
14161
14162   if (element == -1)
14163     DrawEditorElement(sx, sy, Tile[lx][ly]);
14164   else
14165     DrawAreaBorder(sx, sy, sx, sy);
14166 }
14167
14168 static void CheckLevelBorderElement(boolean redraw_playfield)
14169 {
14170   int last_border_element = BorderElement;
14171
14172   SetBorderElement();
14173
14174   if (redraw_playfield && BorderElement != last_border_element)
14175     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14176 }
14177
14178 static void CopyLevelToUndoBuffer(int mode)
14179 {
14180   static boolean accumulated_undo = FALSE;
14181   boolean new_undo_buffer_position = TRUE;
14182   int x, y;
14183
14184   if (undo_buffer_steps == 0)
14185     accumulated_undo = FALSE;
14186
14187   switch (mode)
14188   {
14189     case UNDO_IMMEDIATE:
14190       accumulated_undo = FALSE;
14191       break;
14192
14193     case UNDO_ACCUMULATE:
14194       if (accumulated_undo)
14195         new_undo_buffer_position = FALSE;
14196       accumulated_undo = TRUE;
14197       break;
14198
14199     default:
14200       break;
14201   }
14202
14203   if (new_undo_buffer_position)
14204   {
14205     // advance position in undo buffer ring
14206     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14207
14208     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
14209       undo_buffer_steps++;
14210   }
14211
14212   // always reset redo buffer when storing level change into undo buffer
14213   redo_buffer_steps = 0;
14214
14215   for (x = 0; x < lev_fieldx; x++)
14216     for (y = 0; y < lev_fieldy; y++)
14217       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
14218
14219   // check if drawing operation forces change of border style
14220   CheckLevelBorderElement(TRUE);
14221
14222   level.changed = TRUE;
14223 }
14224
14225 static void RandomPlacement(int new_element)
14226 {
14227   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
14228   int num_free_positions = 0;
14229   int num_percentage, num_elements;
14230   int x, y;
14231
14232   ResetIntelliDraw();
14233
14234   // determine number of free positions for randomly placing the new element
14235   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
14236   {
14237     free_position[x][y] =
14238       (random_placement_background_restricted ?
14239        Tile[x][y] == random_placement_background_element :
14240        Tile[x][y] != new_element);
14241
14242     if (free_position[x][y])
14243       num_free_positions++;
14244   }
14245
14246   // determine number of new elements to place there
14247   num_percentage = num_free_positions * random_placement_value / 100;
14248   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
14249                   num_percentage : random_placement_value);
14250
14251   // if less free positions than elements to place, fill all these positions
14252   if (num_free_positions < num_elements)
14253   {
14254     for (x = 0; x < lev_fieldx; x++)
14255       for (y = 0; y < lev_fieldy; y++)
14256         if (free_position[x][y])
14257           SetElement(x, y, new_element);
14258   }
14259   else
14260   {
14261     while (num_elements > 0)
14262     {
14263       x = GetSimpleRandom(lev_fieldx);
14264       y = GetSimpleRandom(lev_fieldy);
14265
14266       // don't place element at the same position twice
14267       if (free_position[x][y])
14268       {
14269         free_position[x][y] = FALSE;
14270         SetElement(x, y, new_element);
14271         num_elements--;
14272       }
14273     }
14274   }
14275
14276   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14277   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14278 }
14279
14280 static void WrapLevel(int dx, int dy)
14281 {
14282   int wrap_dx = lev_fieldx - dx;
14283   int wrap_dy = lev_fieldy - dy;
14284   int x, y;
14285
14286   for (x = 0; x < lev_fieldx; x++)
14287     for (y = 0; y < lev_fieldy; y++)
14288       TileBackup[x][y] = Tile[x][y];
14289
14290   for (x = 0; x < lev_fieldx; x++)
14291     for (y = 0; y < lev_fieldy; y++)
14292       Tile[x][y] =
14293         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
14294
14295   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14296   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
14297 }
14298
14299 static void DrawAreaElementHighlight(boolean highlighted,
14300                                      boolean highlighted_similar)
14301 {
14302   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14303
14304   if (!highlighted)
14305     return;
14306
14307   int x, y;
14308
14309   for (x = 0; x < ed_fieldx; x++)
14310   {
14311     for (y = 0; y < ed_fieldy; y++)
14312     {
14313       boolean highlight = FALSE;
14314       int lx = x + level_xpos;
14315       int ly = y + level_ypos;
14316
14317       if (!IN_LEV_FIELD(lx, ly))
14318         continue;
14319
14320       // check if element is the same
14321       if (Tile[lx][ly] == new_element1)
14322         highlight = TRUE;
14323
14324       // check if element is similar
14325       if (highlighted_similar &&
14326           strEqual(element_info[Tile[lx][ly]].class_name,
14327                    element_info[new_element1].class_name))
14328         highlight = TRUE;
14329
14330       // check if element is matching MM style wall
14331       if (IS_MM_WALL(Tile[lx][ly]) &&
14332           map_mm_wall_element(Tile[lx][ly]) == new_element1)
14333         highlight = TRUE;
14334
14335       if (!highlight)
14336         continue;
14337
14338       if (IS_MM_WALL(Tile[lx][ly]) && !highlighted_similar)
14339       {
14340         int i;
14341
14342         for (i = 0; i < 4; i++)
14343         {
14344           if (!(MM_WALL_BITS(Tile[lx][ly]) & (1 << i)))
14345             continue;
14346
14347           int xx = x * 2 + (i % 2);
14348           int yy = y * 2 + (i / 2);
14349           int sx = SX + xx * ed_tilesize / 2;
14350           int sy = SY + yy * ed_tilesize / 2;
14351           int from_sx = sx;
14352           int from_sy = sy;
14353           int to_sx = sx + ed_tilesize / 2 - 1;
14354           int to_sy = sy + ed_tilesize / 2 - 1;
14355
14356           DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14357           DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14358           DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14359           DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14360         }
14361       }
14362       else
14363       {
14364         int sx = SX + x * ed_tilesize;
14365         int sy = SY + y * ed_tilesize;
14366         int from_sx = sx;
14367         int from_sy = sy;
14368         int to_sx = sx + ed_tilesize - 1;
14369         int to_sy = sy + ed_tilesize - 1;
14370
14371         DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14372         DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14373         DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14374         DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14375       }
14376     }
14377   }
14378 }
14379
14380 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
14381 {
14382   char *template_filename_old = getLocalLevelTemplateFilename();
14383   char *template_filename_new =
14384     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
14385
14386   if (copyFile(template_filename_old, template_filename_new) != 0)
14387     Request("Cannot copy level template!", REQ_CONFIRM);
14388
14389   free(template_filename_new);
14390 }
14391
14392 static void HandleDrawingAreas(struct GadgetInfo *gi)
14393 {
14394   static boolean started_inside_drawing_area = FALSE;
14395   static int last_sx = -1;
14396   static int last_sy = -1;
14397   static int last_sx2 = -1;
14398   static int last_sy2 = -1;
14399   int id = gi->custom_id;
14400   int type_id = gi->custom_type_id;
14401   boolean button_press_event;
14402   boolean button_release_event;
14403   boolean inside_drawing_area = !gi->event.off_borders;
14404   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
14405   int actual_drawing_function;
14406   int button = gi->event.button;
14407   int new_element = BUTTON_ELEMENT(button);
14408   int sx = gi->event.x, sy = gi->event.y;
14409   int min_sx = 0, min_sy = 0;
14410   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
14411   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
14412   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
14413   int sx2 = gi->event.mx / mini_item_xsize;
14414   int sy2 = gi->event.my / mini_item_ysize;
14415   int dx = sx2 % 2;
14416   int dy = sy2 % 2;
14417   int lx = 0, ly = 0;
14418   int x, y;
14419
14420   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
14421   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
14422
14423   // make sure to stay inside drawing area boundaries
14424   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
14425   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
14426
14427   if (draw_level)
14428   {
14429     int min_lx = 0, min_ly = 0;
14430     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
14431
14432     // get positions inside level field
14433     lx = sx + level_xpos;
14434     ly = sy + level_ypos;
14435
14436     if (!IN_LEV_FIELD(lx, ly))
14437       inside_drawing_area = FALSE;
14438
14439     // make sure to stay inside level field boundaries
14440     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
14441     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
14442
14443     // correct drawing area positions accordingly
14444     sx = lx - level_xpos;
14445     sy = ly - level_ypos;
14446   }
14447
14448   // also correct MM wall-sized (double) drawing area positions accordingly
14449   if (sx2 / 2 < sx || sx2 / 2 > sx)
14450   {
14451     dx = (sx2 / 2 < sx ? 0 : 1);
14452     sx2 = sx * 2 + dx;
14453   }
14454   if (sy2 / 2 < sy || sy2 / 2 > sy)
14455   {
14456     dy = (sy2 / 2 < sy ? 0 : 1);
14457     sy2 = sy * 2 + dy;
14458   }
14459
14460   if (!button_press_event && !button_release_event)
14461   {
14462     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
14463     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
14464                              isHiresTileElement(old_element) &&
14465                              isHiresDrawElement(new_element));
14466
14467     // prevent handling events for every pixel position when moving mouse
14468     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
14469         (sx2 == last_sx2 && sy2 == last_sy2))
14470       return;
14471   }
14472
14473   last_sx = sx;
14474   last_sy = sy;
14475   last_sx2 = sx2;
14476   last_sy2 = sy2;
14477
14478   if (button_press_event)
14479     started_inside_drawing_area = inside_drawing_area;
14480
14481   if (!started_inside_drawing_area)
14482     return;
14483
14484   if (!IS_VALID_BUTTON(button))
14485     return;
14486
14487   // handle info callback for each invocation of action callback
14488   gi->callback_info(gi);
14489
14490   // automatically switch to 'single item' drawing mode, if needed
14491   actual_drawing_function =
14492     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
14493      drawing_function : GADGET_ID_SINGLE_ITEMS);
14494
14495   // clicking into drawing area with pressed Control key picks element
14496   if (GetKeyModState() & KMOD_Control)
14497   {
14498     last_drawing_function = drawing_function;
14499     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
14500   }
14501
14502   if (GetKeyModState() & KMOD_Shift)
14503   {
14504     if (button_press_event || button_release_event)
14505       ResetIntelliDraw();
14506   }
14507
14508   SetDrawModeHiRes(-1);         // reset to normal draw mode
14509
14510   switch (actual_drawing_function)
14511   {
14512     case GADGET_ID_SINGLE_ITEMS:
14513       if (draw_level)
14514       {
14515         if (button_release_event)
14516         {
14517           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14518
14519           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
14520               !inside_drawing_area)
14521             DeleteBrushFromCursor();
14522
14523           break;
14524         }
14525
14526         if (draw_with_brush)
14527         {
14528           CopyBrushToLevel(sx, sy, button);
14529         }
14530         else
14531         {
14532           SetDrawModeHiRes(new_element);
14533
14534           if (IS_PLAYER_ELEMENT(new_element) || IS_MM_MCDUFFIN(new_element))
14535           {
14536             // remove player at old position
14537             for (y = 0; y < lev_fieldy; y++)
14538             {
14539               for (x = 0; x < lev_fieldx; x++)
14540               {
14541                 int old_element = Tile[x][y];
14542
14543                 if (IS_PLAYER_ELEMENT(old_element) &&
14544                     IS_PLAYER_ELEMENT(new_element))
14545                 {
14546                   int replaced_with_element =
14547                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
14548                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
14549
14550                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
14551                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
14552
14553                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
14554                      old_element == EL_PLAYER_1 ? EL_EMPTY :
14555
14556                      new_element >= EL_PLAYER_1 &&
14557                      new_element <= EL_PLAYER_4 &&
14558                      new_element == old_element ? EL_EMPTY :
14559
14560                      old_element);
14561
14562                   SetElement(x, y, replaced_with_element);
14563                 }
14564                 else if (IS_MM_MCDUFFIN(old_element) &&
14565                          IS_MM_MCDUFFIN(new_element))
14566                 {
14567                   // remove McDuffin at old position
14568                   SetElement(x, y, EL_EMPTY);
14569                 }
14570               }
14571             }
14572           }
14573
14574           SetElementButton(lx, ly, dx, dy, new_element, button);
14575         }
14576       }
14577       else if (!button_release_event)
14578       {
14579         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14580
14581         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
14582           DrawMiniGraphicExt(drawto,
14583                              gi->x + sx * MINI_TILEX,
14584                              gi->y + sy * MINI_TILEY,
14585                              el2edimg(new_element));
14586         else
14587           DrawFixedGraphicExt(drawto,
14588                               gi->x + sx * TILEX,
14589                               gi->y + sy * TILEY,
14590                               el2edimg(new_element), 0);
14591
14592         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14593           new_element = GFX_ELEMENT(new_element);
14594
14595         drawingarea_info[type_id].value[pos] = new_element;
14596
14597         CopyElementPropertiesToGame(properties_element);
14598
14599         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14600         {
14601           UpdateCustomElementGraphicGadgets();
14602
14603           FrameCounter = 0;     // restart animation frame counter
14604         }
14605       }
14606       break;
14607
14608     case GADGET_ID_CONNECTED_ITEMS:
14609       {
14610         static int last_sx = -1;
14611         static int last_sy = -1;
14612
14613         if (button_release_event)
14614           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14615
14616         SetDrawModeHiRes(new_element);
14617
14618         if (getDrawModeHiRes())
14619         {
14620           sx = sx2;
14621           sy = sy2;
14622         }
14623
14624         if (!button_press_event)
14625           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
14626
14627         last_sx = sx;
14628         last_sy = sy;
14629       }
14630       break;
14631
14632     case GADGET_ID_LINE:
14633     case GADGET_ID_ARC:
14634     case GADGET_ID_RECTANGLE:
14635     case GADGET_ID_FILLED_BOX:
14636       SetDrawModeHiRes(new_element);
14637
14638       if (getDrawModeHiRes())
14639       {
14640         sx = sx2;
14641         sy = sy2;
14642       }
14643       // FALLTHROUGH
14644     case GADGET_ID_GRAB_BRUSH:
14645     case GADGET_ID_TEXT:
14646       {
14647         static int last_sx = -1;
14648         static int last_sy = -1;
14649         static int start_sx = -1;
14650         static int start_sy = -1;
14651         void (*draw_func)(int, int, int, int, int, boolean);
14652
14653         if (drawing_function == GADGET_ID_LINE)
14654           draw_func = DrawLine;
14655         else if (drawing_function == GADGET_ID_ARC)
14656           draw_func = DrawArc;
14657         else if (drawing_function == GADGET_ID_RECTANGLE)
14658           draw_func = DrawBox;
14659         else if (drawing_function == GADGET_ID_FILLED_BOX)
14660           draw_func = DrawFilledBox;
14661         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
14662           draw_func = SelectArea;
14663         else // (drawing_function == GADGET_ID_TEXT)
14664           draw_func = SetTextCursor;
14665
14666         if (button_press_event)
14667         {
14668           draw_func(sx, sy, sx, sy, new_element, FALSE);
14669           start_sx = last_sx = sx;
14670           start_sy = last_sy = sy;
14671
14672           if (drawing_function == GADGET_ID_TEXT)
14673             DrawLevelText(0, 0, 0, TEXT_END);
14674         }
14675         else if (button_release_event)
14676         {
14677           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
14678           if (drawing_function == GADGET_ID_GRAB_BRUSH)
14679           {
14680             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
14681             CopyBrushToCursor(sx, sy);
14682             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
14683                           MB_LEFTBUTTON);
14684             draw_with_brush = TRUE;
14685           }
14686           else if (drawing_function == GADGET_ID_TEXT)
14687             DrawLevelText(sx, sy, 0, TEXT_INIT);
14688           else
14689             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14690         }
14691         else if (last_sx != sx || last_sy != sy)
14692         {
14693           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
14694           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
14695             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
14696           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
14697           last_sx = sx;
14698           last_sy = sy;
14699         }
14700       }
14701       break;
14702
14703     case GADGET_ID_FLOOD_FILL:
14704       if (button_press_event && Tile[lx][ly] != new_element)
14705       {
14706         if (IS_MM_WALL_EDITOR(new_element))
14707           FloodFillWall_MM(sx2, sy2, new_element);
14708         else
14709           FloodFill(lx, ly, new_element);
14710
14711         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14712         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14713       }
14714       break;
14715
14716     case GADGET_ID_PICK_ELEMENT:
14717       if (button_release_event)
14718         ClickOnGadget(level_editor_gadget[last_drawing_function],
14719                       MB_LEFTBUTTON);
14720       else if (draw_level)
14721         PickDrawingElement(button, Tile[lx][ly]);
14722       else
14723       {
14724         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14725
14726         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
14727       }
14728
14729     default:
14730       break;
14731   }
14732
14733   // do not mark level as modified for certain non-level-changing gadgets
14734   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
14735        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
14736       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
14737       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14738     return;
14739
14740   level.changed = TRUE;
14741 }
14742
14743 static void HandleCounterButtons(struct GadgetInfo *gi)
14744 {
14745   int gadget_id = gi->custom_id;
14746   int counter_id = gi->custom_type_id;
14747   int button = gi->event.button;
14748   int *counter_value = counterbutton_info[counter_id].value;
14749   int step = BUTTON_STEPSIZE(button) *
14750     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
14751
14752   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14753   {
14754     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
14755     boolean released = (gi->event.type == GD_EVENT_RELEASED);
14756     boolean level_changed = LevelChanged();
14757
14758     if ((level_changed && pressed) || (!level_changed && released))
14759       return;
14760
14761     if (level_changed && !Request("Level has changed! Discard changes?",
14762                                   REQ_ASK))
14763     {
14764       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14765         ModifyEditorCounterValue(counter_id, *counter_value);
14766
14767       return;
14768     }
14769   }
14770
14771   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14772     *counter_value = gi->textinput.number_value;
14773   else
14774     ModifyEditorCounterValue(counter_id, *counter_value + step);
14775
14776   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14777   {
14778     int last_game_engine_type = level.game_engine_type;
14779
14780     LoadLevel(level_nr);
14781     LoadScore(level_nr);
14782
14783     SaveLevelSetup_SeriesInfo();
14784
14785     TapeErase();
14786
14787     ResetUndoBuffer();
14788     DrawEditModeWindow();
14789
14790     if (level.game_engine_type != last_game_engine_type)
14791     {
14792       // update element selection list
14793       ReinitializeElementList();
14794       ModifyEditorElementList();
14795     }
14796
14797     return;
14798   }
14799
14800   switch (counter_id)
14801   {
14802     case ED_COUNTER_ID_YAMYAM_CONTENT:
14803       DrawYamYamContentAreas();
14804       break;
14805
14806     case ED_COUNTER_ID_BALL_CONTENT:
14807       DrawMagicBallContentAreas();
14808       break;
14809
14810     case ED_COUNTER_ID_ANDROID_CONTENT:
14811       DrawAndroidElementArea();
14812       break;
14813
14814     case ED_COUNTER_ID_GROUP_CONTENT:
14815       DrawGroupElementArea();
14816       CopyGroupElementPropertiesToGame(properties_element);
14817       break;
14818
14819     case ED_COUNTER_ID_INVENTORY_SIZE:
14820       DrawPlayerInitialInventoryArea(properties_element);
14821       break;
14822
14823     case ED_COUNTER_ID_MM_BALL_CONTENT:
14824       DrawMMBallContentArea();
14825       break;
14826
14827     case ED_COUNTER_ID_ENVELOPE_XSIZE:
14828     case ED_COUNTER_ID_ENVELOPE_YSIZE:
14829       DrawEnvelopeTextArea(-1);
14830       break;
14831
14832     case ED_COUNTER_ID_LEVEL_XSIZE:
14833     case ED_COUNTER_ID_LEVEL_YSIZE:
14834       lev_fieldx = level.fieldx;
14835       lev_fieldy = level.fieldy;
14836
14837       // check if resizing of level results in change of border border
14838       SetBorderElement();
14839
14840       break;
14841
14842     default:
14843       break;
14844   }
14845
14846   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
14847        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
14848       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
14849        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
14850     CopyElementPropertiesToGame(properties_element);
14851
14852   // do not mark level as modified for certain non-level-changing gadgets
14853   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
14854        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
14855       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
14856        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
14857     return;
14858
14859   level.changed = TRUE;
14860 }
14861
14862 static void HandleTextInputGadgets(struct GadgetInfo *gi)
14863 {
14864   int type_id = gi->custom_type_id;
14865
14866   strcpy(textinput_info[type_id].value, gi->textinput.value);
14867
14868   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
14869   {
14870     CopyElementPropertiesToGame(properties_element);
14871
14872     ModifyEditorElementList();  // update changed button info text
14873   }
14874
14875   // do not mark level as modified for certain non-level-changing gadgets
14876   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
14877       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
14878     return;
14879
14880   level.changed = TRUE;
14881 }
14882
14883 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
14884 {
14885   int type_id = gi->custom_type_id;
14886
14887   strncpy(textarea_info[type_id].value, gi->textarea.value,
14888           MAX_ENVELOPE_TEXT_LEN);
14889   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
14890
14891   level.changed = TRUE;
14892 }
14893
14894 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
14895 {
14896   int type_id = gi->custom_type_id;
14897   int value_old = *selectbox_info[type_id].value;
14898   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
14899
14900   *selectbox_info[type_id].value = value_new;
14901
14902   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
14903   {
14904     DrawLevelConfigWindow();
14905   }
14906   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
14907   {
14908     element_info[properties_element].current_change_page = gi->selectbox.index;
14909
14910     DrawPropertiesWindow();
14911   }
14912   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
14913             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
14914            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
14915             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
14916            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
14917   {
14918     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
14919     {
14920       // when changing action type, also check action mode and action arg
14921       if (value_old != value_new)
14922         setSelectboxSpecialActionVariablesIfNeeded();
14923
14924       DrawPropertiesChange();
14925     }
14926
14927     CopyElementPropertiesToGame(properties_element);
14928   }
14929   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
14930   {
14931     // show or hide "engine" tabulator depending on game engine type
14932     DrawLevelConfigWindow();
14933
14934     // update element selection list depending on game engine type
14935     ReinitializeElementList();
14936     ModifyEditorElementList();
14937   }
14938   else if (type_id == ED_SELECTBOX_ID_BD_SCHEDULING_TYPE)
14939   {
14940     // update BD cycle delay counter gadgets depending on BD scheduling type
14941     DrawLevelConfigWindow();
14942   }
14943
14944   // do not mark level as modified for certain non-level-changing gadgets
14945   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
14946       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
14947     return;
14948
14949   level.changed = TRUE;
14950 }
14951
14952 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
14953 {
14954   int type_id = gi->custom_type_id;
14955   int i;
14956
14957   if (type_id >= ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST &&
14958       type_id <= ED_TAB_BUTTON_ID_LEVELCONFIG_LAST)
14959   {
14960     edit_mode_levelconfig = gi->custom_type_id;
14961
14962     DrawLevelConfigWindow();
14963   }
14964   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
14965            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
14966   {
14967     edit_mode_properties = gi->custom_type_id;
14968
14969     DrawPropertiesWindow();
14970   }
14971   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
14972            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
14973   {
14974     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
14975
14976     // backup original "level.field" (needed to track playfield changes)
14977     CopyPlayfield(level.field, TileBackup);
14978
14979     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
14980     CopyPlayfield(Tile, level.field);
14981
14982     if (new_template ||
14983         Request("Save this template and kill the old?", REQ_ASK))
14984       SaveLevelTemplate();
14985
14986     if (new_template)
14987       Request("Template saved!", REQ_CONFIRM);
14988
14989     // restore original "level.field" (needed to track playfield changes)
14990     CopyPlayfield(TileBackup, level.field);
14991   }
14992   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
14993   {
14994     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
14995
14996     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
14997         leveldir_current->readonly)
14998     {
14999       Request("This level set is read-only!", REQ_CONFIRM);
15000
15001       return;
15002     }
15003
15004     if (strEqual(levelset_name, ""))
15005     {
15006       Request("Please enter level set title!", REQ_CONFIRM);
15007
15008       return;
15009     }
15010
15011     if (strEqual(levelset_author, ""))
15012     {
15013       Request("Please enter level set author!", REQ_CONFIRM);
15014
15015       return;
15016     }
15017
15018     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
15019     {
15020       if (UpdateUserLevelSet(levelset_subdir,
15021                              levelset_name,
15022                              levelset_author,
15023                              levelset_num_levels))
15024       {
15025         Request("Level set updated!", REQ_CONFIRM);
15026       }
15027       else
15028       {
15029         Request("Updating level set failed!", REQ_CONFIRM);
15030       }
15031     }
15032     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
15033     {
15034       if (level.changed && !Request("Level has changed! Discard changes?",
15035                                      REQ_ASK))
15036         return;
15037
15038       if (CreateUserLevelSet(levelset_subdir,
15039                              levelset_name,
15040                              levelset_author,
15041                              levelset_num_levels,
15042                              levelset_use_levelset_artwork))
15043       {
15044         if (levelset_copy_level_template)
15045           CopyLevelTemplateToUserLevelSet(levelset_subdir);
15046
15047         Request("New level set created!", REQ_CONFIRM);
15048
15049         AddUserLevelSetToLevelInfo(levelset_subdir);
15050         ChangeEditorToLevelSet(levelset_subdir);
15051       }
15052       else
15053       {
15054         Request("Creating new level set failed!", REQ_CONFIRM);
15055       }
15056     }
15057   }
15058   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
15059            custom_element.num_change_pages < MAX_CHANGE_PAGES)
15060   {
15061     struct ElementInfo *ei = &element_info[properties_element];
15062
15063     // when modifying custom element, ask for copying level template
15064     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15065       return;
15066
15067     setElementChangePages(ei, ei->num_change_pages + 1);
15068
15069     // set new change page to be new current change page
15070     ei->current_change_page = ei->num_change_pages - 1;
15071     ei->change = &ei->change_page[ei->current_change_page];
15072
15073     setElementChangeInfoToDefaults(ei->change);
15074
15075     DrawPropertiesWindow();
15076
15077     level.changed = TRUE;
15078   }
15079   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
15080            custom_element.num_change_pages > MIN_CHANGE_PAGES)
15081   {
15082     struct ElementInfo *ei = &element_info[properties_element];
15083
15084     // when modifying custom element, ask for copying level template
15085     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15086       return;
15087
15088     // copy all change pages after change page to be deleted
15089     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
15090       ei->change_page[i] = ei->change_page[i + 1];
15091
15092     setElementChangePages(ei, ei->num_change_pages - 1);
15093
15094     DrawPropertiesWindow();
15095
15096     level.changed = TRUE;
15097   }
15098 }
15099
15100 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
15101 {
15102   int type_id = gi->custom_type_id;
15103
15104   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
15105       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
15106   {
15107     struct ElementInfo *ei = &element_info[properties_element];
15108     int step = BUTTON_STEPSIZE(gi->event.button);
15109
15110     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
15111     ei->current_change_page += step;
15112
15113     if (ei->current_change_page < 0)
15114       ei->current_change_page = 0;
15115     else if (ei->current_change_page >= ei->num_change_pages)
15116       ei->current_change_page = ei->num_change_pages - 1;
15117
15118     DrawPropertiesWindow();
15119   }
15120   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
15121            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15122   {
15123     struct ElementInfo *ei = &element_info[properties_element];
15124     int current_change_page = ei->current_change_page;
15125
15126     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
15127     {
15128       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
15129         ei->change_page[current_change_page];
15130     }
15131     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15132     {
15133       // when modifying custom element, ask for copying level template
15134       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15135         return;
15136
15137       ei->change_page[current_change_page] =
15138         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
15139
15140       level.changed = TRUE;
15141     }
15142
15143     DrawPropertiesWindow();
15144   }
15145 }
15146
15147 static void HandleRadiobuttons(struct GadgetInfo *gi)
15148 {
15149   int type_id = gi->custom_type_id;
15150
15151   *radiobutton_info[type_id].value =
15152     radiobutton_info[type_id].checked_value;
15153
15154   // do not mark level as modified for certain non-level-changing gadgets
15155   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
15156       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
15157     return;
15158
15159   level.changed = TRUE;
15160 }
15161
15162 static void HandleCheckbuttons(struct GadgetInfo *gi)
15163 {
15164   int type_id = gi->custom_type_id;
15165
15166   *checkbutton_info[type_id].value ^= TRUE;
15167
15168   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
15169       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
15170       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
15171       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
15172          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
15173         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
15174          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
15175        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
15176   {
15177     CopyElementPropertiesToGame(properties_element);
15178   }
15179
15180   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
15181   {
15182     UpdateCustomElementGraphicGadgets();
15183   }
15184   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
15185            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
15186   {
15187     boolean template_related_changes_found = FALSE;
15188     int i;
15189
15190     // check if any custom, group or empty elements have been changed
15191     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
15192       if ((IS_CUSTOM_ELEMENT(i) ||
15193            IS_GROUP_ELEMENT(i) ||
15194            IS_EMPTY_ELEMENT(i)) &&
15195           element_info[i].modified_settings)
15196         template_related_changes_found = TRUE;
15197
15198     if (level.use_custom_template &&
15199         !fileExists(getGlobalLevelTemplateFilename()))
15200     {
15201       Request("No level template found!", REQ_CONFIRM);
15202
15203       level.use_custom_template = FALSE;
15204
15205       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15206
15207       return;
15208     }
15209
15210     if (level.use_custom_template &&
15211         template_related_changes_found &&
15212         !Request("Discard changes and use level template?", REQ_ASK))
15213     {
15214       level.use_custom_template = FALSE;
15215
15216       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15217
15218       return;
15219     }
15220
15221     if (!level.use_custom_template &&
15222         Request("Copy settings from level template?", REQ_ASK))
15223     {
15224       return;
15225     }
15226
15227     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
15228
15229     DrawEditModeWindow();
15230   }
15231   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
15232   {
15233     if (setup.editor.use_template_for_new_levels &&
15234         !fileExists(getGlobalLevelTemplateFilename()))
15235     {
15236       Request("No level template found!", REQ_CONFIRM);
15237
15238       return;
15239     }
15240
15241     if (setup.editor.use_template_for_new_levels &&
15242         level.changed &&
15243         !Request("Discard level and load template?", REQ_ASK))
15244     {
15245       return;
15246     }
15247
15248     if (!setup.editor.use_template_for_new_levels &&
15249         level.changed &&
15250         !Request("Discard level and use empty level?", REQ_ASK))
15251     {
15252       return;
15253     }
15254
15255     LoadLevel(level_nr);
15256     LoadScore(level_nr);
15257
15258     TapeErase();
15259
15260     ResetUndoBuffer();
15261     DrawEditModeWindow();
15262   }
15263   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
15264   {
15265     SetAutomaticNumberOfGemsNeeded();
15266   }
15267
15268   // do not mark level as modified for certain non-level-changing gadgets
15269   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
15270        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
15271       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
15272        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
15273        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
15274       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
15275     return;
15276
15277   level.changed = TRUE;
15278 }
15279
15280 static void HandleControlButtons(struct GadgetInfo *gi)
15281 {
15282   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
15283   static int last_edit_mode = ED_MODE_DRAWING;
15284   static int last_custom_copy_mode = -1;
15285   static int last_button = 0;
15286   int id = gi->custom_id;
15287   int button = gi->event.button;
15288   int step = BUTTON_STEPSIZE(button);
15289   int new_element = BUTTON_ELEMENT(button);
15290   int last_properties_element = properties_element;
15291   int x, y;
15292
15293   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
15294     DrawLevelText(0, 0, 0, TEXT_END);
15295
15296   if (id < ED_NUM_CTRL1_BUTTONS &&
15297       id != GADGET_ID_SINGLE_ITEMS &&
15298       id != GADGET_ID_PICK_ELEMENT &&
15299       edit_mode != ED_MODE_DRAWING &&
15300       drawing_function != GADGET_ID_PICK_ELEMENT &&
15301       !(GetKeyModState() & KMOD_Control))
15302     ChangeEditModeWindow(ED_MODE_DRAWING);
15303
15304   // element copy mode active, but no element button pressed => deactivate
15305   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
15306     last_custom_copy_mode = -1;
15307
15308   // when showing palette on element buttons, change element of button used
15309   if (editor.palette.show_on_element_buttons &&
15310       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
15311   {
15312     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
15313
15314     id = GADGET_ID_PALETTE;
15315   }
15316
15317   switch (id)
15318   {
15319     case GADGET_ID_SCROLL_LEFT:
15320       if (level_xpos >= 0)
15321       {
15322         if (lev_fieldx < ed_fieldx - 2)
15323           break;
15324
15325         level_xpos -= step;
15326         if (level_xpos < -1)
15327           level_xpos = -1;
15328         if (button == 1)
15329           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
15330         else
15331           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15332
15333         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15334                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15335       }
15336       break;
15337
15338     case GADGET_ID_SCROLL_RIGHT:
15339       if (level_xpos <= lev_fieldx - ed_fieldx)
15340       {
15341         if (lev_fieldx < ed_fieldx - 2)
15342           break;
15343
15344         level_xpos += step;
15345         if (level_xpos > lev_fieldx - ed_fieldx + 1)
15346           level_xpos = lev_fieldx - ed_fieldx + 1;
15347         if (button == 1)
15348           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
15349         else
15350           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15351
15352         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15353                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15354       }
15355       break;
15356
15357     case GADGET_ID_SCROLL_UP:
15358       if (level_ypos >= 0)
15359       {
15360         if (lev_fieldy < ed_fieldy - 2)
15361           break;
15362
15363         level_ypos -= step;
15364         if (level_ypos < -1)
15365           level_ypos = -1;
15366         if (button == 1)
15367           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
15368         else
15369           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15370
15371         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15372                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15373       }
15374       break;
15375
15376     case GADGET_ID_SCROLL_DOWN:
15377       if (level_ypos <= lev_fieldy - ed_fieldy)
15378       {
15379         if (lev_fieldy < ed_fieldy - 2)
15380           break;
15381
15382         level_ypos += step;
15383         if (level_ypos > lev_fieldy - ed_fieldy + 1)
15384           level_ypos = lev_fieldy - ed_fieldy + 1;
15385         if (button == 1)
15386           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
15387         else
15388           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15389
15390         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15391                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15392       }
15393       break;
15394
15395     case GADGET_ID_SCROLL_HORIZONTAL:
15396       level_xpos = gi->event.item_position - 1;
15397
15398       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15399       BackToFront();
15400
15401       break;
15402
15403     case GADGET_ID_SCROLL_VERTICAL:
15404       level_ypos = gi->event.item_position - 1;
15405
15406       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15407       BackToFront();
15408
15409       break;
15410
15411     case GADGET_ID_SCROLL_LIST_UP:
15412     case GADGET_ID_SCROLL_LIST_DOWN:
15413     case GADGET_ID_SCROLL_LIST_VERTICAL:
15414       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
15415         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
15416       else
15417       {
15418         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
15419         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15420
15421         if (element_shift < 0)
15422           element_shift = 0;
15423         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15424           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15425
15426         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15427                      GDI_SCROLLBAR_ITEM_POSITION,
15428                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15429       }
15430
15431       ModifyEditorElementList();
15432
15433       break;
15434
15435     case GADGET_ID_PROPERTIES:
15436       // always switch off element properties when they are already displayed
15437       last_properties_element = new_element;
15438     case GADGET_ID_ELEMENT_LEFT:
15439     case GADGET_ID_ELEMENT_MIDDLE:
15440     case GADGET_ID_ELEMENT_RIGHT:
15441       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
15442                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
15443                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
15444                             new_element);
15445
15446       if (edit_mode != ED_MODE_PROPERTIES)
15447       {
15448         last_edit_mode = edit_mode;
15449
15450         ChangeEditModeWindow(ED_MODE_PROPERTIES);
15451
15452         last_level_drawing_function = drawing_function;
15453         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
15454                       MB_LEFTBUTTON);
15455       }
15456       else if (properties_element != last_properties_element)
15457       {
15458         DrawEditModeWindow();
15459       }
15460       else
15461       {
15462         ChangeEditModeWindow(ED_MODE_DRAWING);
15463
15464         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
15465                       MB_LEFTBUTTON);
15466       }
15467       break;
15468
15469     case GADGET_ID_PALETTE:
15470       if (edit_mode != ED_MODE_PALETTE)
15471       {
15472         last_edit_mode = edit_mode;
15473
15474         ChangeEditModeWindow(ED_MODE_PALETTE);
15475       }
15476       else
15477       {
15478         ChangeEditModeWindow(last_edit_mode);
15479       }
15480       break;
15481
15482     case GADGET_ID_WRAP_LEFT:
15483       WrapLevel(-step, 0);
15484       break;
15485
15486     case GADGET_ID_WRAP_RIGHT:
15487       WrapLevel(step, 0);
15488       break;
15489
15490     case GADGET_ID_WRAP_UP:
15491       WrapLevel(0, -step);
15492       break;
15493
15494     case GADGET_ID_WRAP_DOWN:
15495       WrapLevel(0, step);
15496       break;
15497
15498     case GADGET_ID_SINGLE_ITEMS:
15499     case GADGET_ID_CONNECTED_ITEMS:
15500     case GADGET_ID_LINE:
15501     case GADGET_ID_ARC:
15502     case GADGET_ID_TEXT:
15503     case GADGET_ID_RECTANGLE:
15504     case GADGET_ID_FILLED_BOX:
15505     case GADGET_ID_FLOOD_FILL:
15506     case GADGET_ID_GRAB_BRUSH:
15507     case GADGET_ID_PICK_ELEMENT:
15508       if (drawing_function != GADGET_ID_PICK_ELEMENT)
15509         last_drawing_function = drawing_function;
15510       drawing_function = id;
15511       draw_with_brush = FALSE;
15512       break;
15513
15514     case GADGET_ID_RANDOM_PLACEMENT:
15515       RandomPlacement(new_element);
15516       break;
15517
15518     case GADGET_ID_ZOOM:
15519       // zoom level editor tile size in or out (or reset to default size)
15520       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
15521                      button == 2 ? ed_tilesize_default :
15522                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
15523
15524       // when using touch device, cycle through all zoom tilesizes
15525       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
15526         ed_tilesize = MICRO_TILESIZE;
15527
15528       // limit zoom level by upper and lower bound
15529       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
15530
15531       InitZoomLevelSettings(ed_tilesize);
15532
15533       if (edit_mode == ED_MODE_DRAWING)
15534       {
15535         DrawDrawingWindow();
15536
15537         // redraw zoom gadget info text
15538         PrintEditorGadgetInfoText(level_editor_gadget[id]);
15539       }
15540
15541       // save current editor zoom tilesize
15542       SaveSetup_AutoSetup();
15543
15544       break;
15545
15546     case GADGET_ID_CUSTOM_COPY_FROM:
15547     case GADGET_ID_CUSTOM_COPY_TO:
15548     case GADGET_ID_CUSTOM_EXCHANGE:
15549       last_custom_copy_mode = id;
15550       last_drawing_function = drawing_function;
15551       break;
15552
15553     case GADGET_ID_CUSTOM_COPY:
15554       CopyCustomElement(properties_element, -1, id);
15555       break;
15556
15557     case GADGET_ID_CUSTOM_PASTE:
15558       CopyCustomElement(-1, properties_element, id);
15559       break;
15560
15561     case GADGET_ID_UNDO:
15562       if (button < 0)   // keep button value (even if modifier keys are pressed)
15563         button = -button;
15564       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
15565         button = 3;
15566
15567       if (button == 1 && undo_buffer_steps == 0)
15568       {
15569         Request("Undo buffer empty!", REQ_CONFIRM);
15570
15571         break;
15572       }
15573       else if (button == 2)
15574       {
15575         break;
15576       }
15577       else if (button == 3 && redo_buffer_steps == 0)
15578       {
15579         Request("Redo buffer empty!", REQ_CONFIRM);
15580
15581         break;
15582       }
15583
15584       if (edit_mode != ED_MODE_DRAWING)
15585         ChangeEditModeWindow(ED_MODE_DRAWING);
15586
15587       if (button == 1)
15588       {
15589         // undo
15590
15591         undo_buffer_position =
15592           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
15593
15594         undo_buffer_steps--;
15595         redo_buffer_steps++;
15596       }
15597       else
15598       {
15599         // redo
15600
15601         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
15602
15603         undo_buffer_steps++;
15604         redo_buffer_steps--;
15605       }
15606
15607       for (x = 0; x < lev_fieldx; x++)
15608         for (y = 0; y < lev_fieldy; y++)
15609           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
15610
15611       // check if undo operation forces change of border style
15612       CheckLevelBorderElement(FALSE);
15613
15614       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15615
15616       break;
15617
15618     case GADGET_ID_CONF:
15619       if (edit_mode != ED_MODE_LEVELCONFIG)
15620       {
15621         last_edit_mode = edit_mode;
15622
15623         ChangeEditModeWindow(ED_MODE_LEVELCONFIG);
15624       }
15625       else
15626       {
15627         ChangeEditModeWindow(ED_MODE_DRAWING);
15628       }
15629       break;
15630
15631     case GADGET_ID_CLEAR:
15632       if (edit_mode != ED_MODE_DRAWING)
15633         ChangeEditModeWindow(ED_MODE_DRAWING);
15634
15635       for (x = 0; x < MAX_LEV_FIELDX; x++)
15636         for (y = 0; y < MAX_LEV_FIELDY; y++)
15637           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
15638
15639       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
15640
15641       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15642       break;
15643
15644     case GADGET_ID_SAVE:
15645     {
15646       // saving read-only levels into personal level set modifies global vars
15647       // "leveldir_current" and "level_nr"; restore them after saving level
15648       LevelDirTree *leveldir_former = leveldir_current;
15649       int level_nr_former = level_nr;
15650       char *level_filename;
15651       boolean new_level;
15652
15653       if (leveldir_current->readonly &&
15654           !PrepareSavingIntoPersonalLevelSet())
15655         break;
15656
15657       level_filename = getDefaultLevelFilename(level_nr);
15658       new_level = !fileExists(level_filename);
15659
15660       if (new_level ||
15661           Request("Save this level and kill the old?", REQ_ASK))
15662       {
15663         if (leveldir_former->readonly)
15664           ModifyLevelConfigForSavingIntoPersonalLevelSet(leveldir_former->name);
15665
15666         SetAutomaticNumberOfGemsNeeded();
15667
15668         CopyPlayfield(Tile, level.field);
15669         SaveLevel(level_nr);
15670
15671         level.changed = FALSE;
15672
15673         if (new_level)
15674         {
15675           char level_saved_msg[64];
15676
15677           if (leveldir_former->readonly)
15678             sprintf(level_saved_msg,
15679                     "Level saved as level %d into personal level set!",
15680                     level_nr);
15681           else
15682             strcpy(level_saved_msg, "Level saved!");
15683
15684           Request(level_saved_msg, REQ_CONFIRM);
15685         }
15686       }
15687
15688       // "cd" back to copied-from levelset (in case of saved read-only level)
15689       leveldir_current = leveldir_former;
15690       level_nr = level_nr_former;
15691
15692       break;
15693     }
15694
15695     case GADGET_ID_TEST:
15696       if (LevelChanged())
15697         level.game_version = GAME_VERSION_ACTUAL;
15698
15699       CopyPlayfield(level.field, TileBackup);
15700       CopyPlayfield(Tile, level.field);
15701
15702       CopyNativeLevel_RND_to_Native(&level);
15703
15704       UnmapLevelEditorGadgets();
15705       UndrawSpecialEditorDoor();
15706
15707       CloseDoor(DOOR_CLOSE_ALL);
15708
15709       // needed before playing if editor playfield area has different size
15710       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
15711
15712       // redraw_mask = REDRAW_ALL;
15713
15714       level_editor_test_game = TRUE;
15715
15716       StartGameActions(FALSE, setup.autorecord, level.random_seed);
15717
15718       break;
15719
15720     case GADGET_ID_EXIT:
15721       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
15722       break;
15723
15724     default:
15725       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
15726           id <= GADGET_ID_ELEMENTLIST_LAST)
15727       {
15728         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
15729
15730         new_element = editor_elements[element_position + element_shift];
15731
15732         if (IS_EDITOR_CASCADE(new_element))
15733         {
15734           int i;
15735
15736           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
15737           {
15738             int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
15739             boolean *cascade_value = editor_elements_info[i].setup_cascade_value;
15740
15741             if (*cascade_element == new_element)
15742             {
15743               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
15744               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
15745
15746               // update element selection list
15747               ReinitializeElementList();
15748               ModifyEditorElementList();
15749
15750               // update cascading gadget info text
15751               PrintEditorGadgetInfoText(level_editor_gadget[id]);
15752
15753               // save current editor cascading state
15754               SaveSetup_EditorCascade();
15755
15756               break;
15757             }
15758           }
15759
15760           break;
15761         }
15762
15763         if (last_custom_copy_mode != -1)
15764         {
15765           if (CopyCustomElement(properties_element, new_element,
15766                                 last_custom_copy_mode))
15767           {
15768             ClickOnGadget(level_editor_gadget[last_drawing_function],
15769                           MB_LEFTBUTTON);
15770
15771             last_custom_copy_mode = -1;
15772           }
15773
15774           break;
15775         }
15776
15777         // change element of button used to show palette
15778         if (editor.palette.show_on_element_buttons)
15779           button = last_button;
15780
15781         PickDrawingElement(button, new_element);
15782
15783         if (!stick_element_properties_window &&
15784             drawing_function != GADGET_ID_PICK_ELEMENT &&
15785             !(GetKeyModState() & KMOD_Control))
15786         {
15787           properties_element = new_element;
15788           if (edit_mode == ED_MODE_PROPERTIES)
15789             DrawPropertiesWindow();
15790         }
15791
15792         if (drawing_function == GADGET_ID_PICK_ELEMENT)
15793           ClickOnGadget(level_editor_gadget[last_drawing_function],
15794                         MB_LEFTBUTTON);
15795
15796         if (!use_permanent_palette)
15797           ChangeEditModeWindow(last_edit_mode);
15798       }
15799 #ifdef DEBUG
15800       else if (gi->event.type == GD_EVENT_PRESSED)
15801         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
15802       else if (gi->event.type == GD_EVENT_RELEASED)
15803         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
15804       else if (gi->event.type == GD_EVENT_MOVING)
15805         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
15806       else
15807         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
15808 #endif
15809       break;
15810   }
15811 }
15812
15813 void HandleLevelEditorKeyInput(Key key)
15814 {
15815   char letter = getCharFromKey(key);
15816
15817   if (drawing_function == GADGET_ID_TEXT &&
15818       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
15819   {
15820     if (letter)
15821       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
15822     else if (key == KSYM_Delete || key == KSYM_BackSpace)
15823       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
15824     else if (key == KSYM_Return)
15825       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
15826     else if (key == KSYM_Escape)
15827       DrawLevelText(0, 0, 0, TEXT_END);
15828
15829     return;
15830   }
15831
15832   int id = GADGET_ID_NONE;
15833   int new_element_shift = element_shift;
15834   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
15835   int button = MB_LEFTBUTTON;
15836   int i;
15837
15838   switch (key)
15839   {
15840     case KSYM_Left:
15841       id = GADGET_ID_SCROLL_LEFT;
15842       break;
15843     case KSYM_Right:
15844       id = GADGET_ID_SCROLL_RIGHT;
15845       break;
15846     case KSYM_Up:
15847       id = GADGET_ID_SCROLL_UP;
15848       break;
15849     case KSYM_Down:
15850       id = GADGET_ID_SCROLL_DOWN;
15851       break;
15852
15853     case KSYM_Page_Up:
15854     case KSYM_Page_Down:
15855       step *= (key == KSYM_Page_Up ? -1 : +1);
15856       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15857
15858       if (element_shift < 0)
15859         element_shift = 0;
15860       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15861         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15862
15863       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15864                    GDI_SCROLLBAR_ITEM_POSITION,
15865                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15866
15867       ModifyEditorElementList();
15868
15869       break;
15870
15871     case KSYM_Home:
15872     case KSYM_End:
15873       element_shift = (key == KSYM_Home ? 0 :
15874                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
15875
15876       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15877                    GDI_SCROLLBAR_ITEM_POSITION,
15878                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15879
15880       ModifyEditorElementList();
15881
15882       break;
15883
15884     case KSYM_Insert:
15885     case KSYM_Delete:
15886
15887       // this is needed to prevent interference with running "True X-Mouse"
15888       if (GetKeyModStateFromEvents() & KMOD_Control)
15889         break;
15890
15891       // check for last or next editor cascade block in element list
15892       for (i = 0; i < num_editor_elements; i++)
15893       {
15894         if ((key == KSYM_Insert && i == element_shift) ||
15895             (key == KSYM_Delete && new_element_shift > element_shift))
15896           break;
15897
15898         // jump to next cascade block (or to start of element list)
15899         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
15900           new_element_shift = i;
15901       }
15902
15903       if (i < num_editor_elements)
15904         element_shift = new_element_shift;
15905
15906       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15907         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15908
15909       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15910                    GDI_SCROLLBAR_ITEM_POSITION,
15911                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15912
15913       ModifyEditorElementList();
15914
15915       break;
15916
15917     case KSYM_Escape:
15918       if (edit_mode == ED_MODE_DRAWING)
15919         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
15920       else if (edit_mode == ED_MODE_LEVELCONFIG)
15921         HandleControlButtons(level_editor_gadget[GADGET_ID_CONF]);
15922       else if (edit_mode == ED_MODE_PROPERTIES)
15923         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
15924       else if (edit_mode == ED_MODE_PALETTE)
15925         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
15926       else              // should never happen
15927         ChangeEditModeWindow(ED_MODE_DRAWING);
15928
15929       break;
15930
15931     default:
15932       break;
15933   }
15934
15935   if (id != GADGET_ID_NONE)
15936     ClickOnGadget(level_editor_gadget[id], button);
15937   else if (letter == '1' || letter == '?')
15938     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
15939   else if (letter == '2')
15940     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
15941   else if (letter == '3')
15942     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
15943   else if (letter == '.')
15944     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
15945   else if (letter == 'U')
15946     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
15947   else if (letter == '-' || key == KSYM_KP_Subtract)
15948     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
15949   else if (letter == '0' || key == KSYM_KP_0)
15950     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
15951   else if (letter == '+' || key == KSYM_KP_Add ||
15952            letter == '=')       // ("Shift-=" is "+" on US keyboards)
15953     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
15954   else if (key == KSYM_Return ||
15955            key == KSYM_space ||
15956            key == setup.shortcut.toggle_pause)
15957     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
15958   else
15959     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
15960       if (letter && letter == controlbutton_info[i].shortcut)
15961         if (!anyTextGadgetActive())
15962           ClickOnGadget(level_editor_gadget[i], button);
15963
15964   if (draw_with_brush)
15965   {
15966     if (letter == 'x')
15967       FlipBrushX();
15968     else if (letter == 'y')
15969       FlipBrushY();
15970     else if (letter == 'z')
15971       RotateBrush();
15972   }
15973 }
15974
15975 static void HandleLevelEditorIdle_Properties(void)
15976 {
15977   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
15978   int x = editor.settings.element_graphic.x + element_border;
15979   int y = editor.settings.element_graphic.y + element_border;
15980   static DelayCounter action_delay = { 0 };
15981   int i;
15982
15983   action_delay.value = GameFrameDelay;
15984
15985   if (!DelayReached(&action_delay))
15986     return;
15987
15988   for (i = 0; i < ED_NUM_SELECTBOX; i++)
15989   {
15990     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
15991
15992     if (gi->mapped && gi->active && gi->selectbox.open)
15993       return;
15994   }
15995
15996   DrawEditorElementAnimation(SX + x, SY + y);
15997
15998   redraw_mask |= REDRAW_FIELD;
15999
16000   FrameCounter++;       // increase animation frame counter
16001 }
16002
16003 static void HandleLevelEditorIdle_Drawing(void)
16004 {
16005   static boolean last_highlighted = FALSE;
16006   static boolean last_highlighted_similar = FALSE;
16007   boolean highlighted = (GetKeyModState() & KMOD_Alt);
16008   boolean highlighted_similar = (GetKeyModState() & KMOD_Shift);
16009
16010   if (highlighted != last_highlighted ||
16011       (highlighted && highlighted_similar != last_highlighted_similar))
16012   {
16013     DrawAreaElementHighlight(highlighted, highlighted_similar);
16014
16015     redraw_mask |= REDRAW_FIELD;
16016   }
16017
16018   last_highlighted = highlighted;
16019   last_highlighted_similar = highlighted_similar;
16020 }
16021
16022 void HandleLevelEditorIdle(void)
16023 {
16024   if (edit_mode == ED_MODE_PROPERTIES)
16025     HandleLevelEditorIdle_Properties();
16026   else if (edit_mode == ED_MODE_DRAWING)
16027     HandleLevelEditorIdle_Drawing();
16028 }
16029
16030 static void ClearEditorGadgetInfoText(void)
16031 {
16032   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
16033 }
16034
16035 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
16036 {
16037   char infotext[MAX_OUTPUT_LINESIZE + 1];
16038   int max_infotext_len = getMaxInfoTextLength();
16039
16040   if (gi == NULL || strlen(gi->info_text) == 0)
16041     return;
16042
16043   strncpy(infotext, gi->info_text, max_infotext_len);
16044   infotext[max_infotext_len] = '\0';
16045
16046   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
16047   {
16048     int key = controlbutton_info[gi->custom_id].shortcut;
16049
16050     if (key)
16051     {
16052       char shortcut[MAX_OUTPUT_LINESIZE + 1];
16053
16054       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
16055         sprintf(shortcut, " ('.' or '%c')", key);
16056       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
16057         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
16058       else if (gi->custom_id == GADGET_ID_TEST)
16059         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
16060       else if (gi->custom_id == GADGET_ID_UNDO)
16061         sprintf(shortcut, " ('%c/Shift-U')", key);
16062       else if (gi->custom_id == GADGET_ID_ZOOM)
16063         sprintf(shortcut, " ('%c', '0', '-')", key);
16064       else
16065         sprintf(shortcut, " ('%s%c')",
16066                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
16067
16068       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
16069         strcat(infotext, shortcut);
16070     }
16071   }
16072
16073   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
16074 }
16075
16076 void HandleEditorGadgetInfoText(void *ptr)
16077 {
16078   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
16079
16080   if (game_status != GAME_MODE_EDITOR)
16081     return;
16082
16083   ClearEditorGadgetInfoText();
16084
16085   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
16086     return;
16087
16088   // misuse this function to delete brush cursor, if needed
16089   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
16090     DeleteBrushFromCursor();
16091
16092   PrintEditorGadgetInfoText(gi);
16093 }
16094
16095 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
16096 {
16097   int id = gi->custom_id;
16098   int type_id = gi->custom_type_id;
16099   int sx = gi->event.x;
16100   int sy = gi->event.y;
16101   int lx = sx + level_xpos;
16102   int ly = sy + level_ypos;
16103   int min_sx = 0, min_sy = 0;
16104   int max_sx = gi->drawing.area_xsize - 1;
16105   int max_sy = gi->drawing.area_ysize - 1;
16106   int actual_drawing_function = drawing_function;
16107   int max_infotext_len = getMaxInfoTextLength();
16108   char infotext[MAX_OUTPUT_LINESIZE + 1];
16109
16110   infotext[0] = '\0';           // start with empty info text
16111
16112   // pressed Control key: simulate picking element
16113   if (GetKeyModState() & KMOD_Control)
16114     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
16115
16116   ClearEditorGadgetInfoText();
16117
16118   if (gi->event.type == GD_EVENT_INFO_LEAVING)
16119     return;
16120
16121   // make sure to stay inside drawing area boundaries
16122   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
16123   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
16124
16125   if (id == GADGET_ID_DRAWING_LEVEL)
16126   {
16127     if (button_status)
16128     {
16129       int min_lx = 0, min_ly = 0;
16130       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
16131
16132       // get positions inside level field
16133       lx = sx + level_xpos;
16134       ly = sy + level_ypos;
16135
16136       // make sure to stay inside level field boundaries
16137       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
16138       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
16139
16140       // correct drawing area positions accordingly
16141       sx = lx - level_xpos;
16142       sy = ly - level_ypos;
16143     }
16144
16145     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16146     {
16147       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
16148       {
16149         static int start_lx = 0;
16150         static int start_ly = 0;
16151         char *text;
16152
16153         if (gi->event.type == GD_EVENT_PRESSED)
16154         {
16155           start_lx = lx;
16156           start_ly = ly;
16157         }
16158
16159         switch (actual_drawing_function)
16160         {
16161           case GADGET_ID_SINGLE_ITEMS:
16162             text = "Drawing single items";
16163             break;
16164           case GADGET_ID_CONNECTED_ITEMS:
16165             text = "Drawing connected items";
16166             break;
16167           case GADGET_ID_LINE:
16168             text = "Drawing line";
16169             break;
16170           case GADGET_ID_ARC:
16171             text = "Drawing arc";
16172             break;
16173           case GADGET_ID_TEXT:
16174             text = "Setting text cursor";
16175             break;
16176           case GADGET_ID_RECTANGLE:
16177             text = "Drawing rectangle";
16178             break;
16179           case GADGET_ID_FILLED_BOX:
16180             text = "Drawing filled box";
16181             break;
16182           case GADGET_ID_FLOOD_FILL:
16183             text = "Flood fill";
16184             break;
16185           case GADGET_ID_GRAB_BRUSH:
16186             text = "Grabbing brush";
16187             break;
16188           case GADGET_ID_PICK_ELEMENT:
16189             text = "Picking element";
16190             break;
16191
16192           default:
16193             text = "Drawing position";
16194             break;
16195         }
16196
16197         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16198           sprintf(infotext, "%s: %d, %d", text, lx, ly);
16199         else
16200           sprintf(infotext, "%s: %d, %d", text,
16201                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
16202       }
16203       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16204         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
16205       else
16206         sprintf(infotext, "Level position: %d, %d", lx, ly);
16207     }
16208
16209     // misuse this function to draw brush cursor, if needed
16210     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
16211     {
16212       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16213         CopyBrushToCursor(sx, sy);
16214       else
16215         DeleteBrushFromCursor();
16216     }
16217
16218     if (!draw_with_brush)
16219       UpdateBrushPosition(sx, sy);
16220   }
16221   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16222   {
16223     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
16224     int element = drawingarea_info[type_id].value[pos];
16225
16226     strncpy(infotext, getElementInfoText(element), max_infotext_len);
16227   }
16228   else
16229   {
16230     if (id == GADGET_ID_CUSTOM_CONTENT)
16231       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
16232     else if (id == GADGET_ID_GROUP_CONTENT)
16233       sprintf(infotext, "group element position: %d", sx + 1);
16234     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
16235              id <= GADGET_ID_YAMYAM_CONTENT_7)
16236       sprintf(infotext, "content area %d position: %d, %d",
16237               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
16238     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
16239              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
16240       sprintf(infotext, "content area %d position: %d, %d",
16241               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
16242     else if (id == GADGET_ID_ANDROID_CONTENT)
16243       sprintf(infotext, "android element position: %d", sx + 1);
16244     else if (drawingarea_info[type_id].infotext != NULL)
16245       strcpy(infotext, drawingarea_info[type_id].infotext);
16246   }
16247
16248   infotext[max_infotext_len] = '\0';
16249
16250   if (strlen(infotext) > 0)
16251     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
16252 }
16253
16254 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
16255                             boolean quick_quit)
16256 {
16257   if (!ask_if_level_has_changed ||
16258       !LevelChanged() ||
16259       Request("Level has changed! Exit without saving?",
16260               REQ_ASK | REQ_STAY_OPEN))
16261   {
16262     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
16263     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
16264
16265     // draw normal door
16266     UndrawSpecialEditorDoor();
16267
16268     // use door animation if door 1 viewport is unchanged and contains toolbox
16269     if (useEditorDoorAnimation())
16270       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
16271
16272     // close editor doors if viewport definition is the same as in main menu
16273     if (vp_door_1->x      == DX     &&
16274         vp_door_1->y      == DY     &&
16275         vp_door_1->width  == DXSIZE &&
16276         vp_door_1->height == DYSIZE &&
16277         vp_door_2->x      == VX     &&
16278         vp_door_2->y      == VY     &&
16279         vp_door_2->width  == VXSIZE &&
16280         vp_door_2->height == VYSIZE)
16281       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
16282     else
16283       SetDoorState(DOOR_CLOSE_ALL);
16284
16285     BackToFront();
16286
16287     if (quick_quit)
16288       FadeSkipNextFadeIn();
16289
16290     SetGameStatus(GAME_MODE_MAIN);
16291
16292     DrawMainMenu();
16293   }
16294   else
16295   {
16296     if (!global.use_envelope_request)
16297     {
16298       CloseDoor(DOOR_CLOSE_1);
16299       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
16300     }
16301   }
16302 }