src/editor.c

   1 // ============================================================================
   2 // Rocks'n'Diamonds - McDuffin Strikes Back!
   3 // ----------------------------------------------------------------------------
   4 // (c) 1995-2014 by Artsoft Entertainment
   5 //                  Holger Schemel
   6 //                  info@artsoft.org
   7 //                  https://www.artsoft.org/
   8 // ----------------------------------------------------------------------------
   9 // editor.c
  10 // ============================================================================
  11
  12 #include <math.h>
  13
  14 #include "libgame/libgame.h"
  15
  16 #include "editor.h"
  17 #include "screens.h"
  18 #include "tools.h"
  19 #include "files.h"
  20 #include "game.h"
  21 #include "init.h"
  22 #include "tape.h"
  23
  24
  25 #define INFOTEXT_UNKNOWN_ELEMENT        "unknown"
  26
  27
  28 // ----------------------------------------------------------------------------
  29 // screen and artwork graphic pixel position definitions
  30 // ----------------------------------------------------------------------------
  31
  32 // values for the control window
  33 #define ED_CTRL1_BUTTONS_HORIZ          4       // toolbox
  34 #define ED_CTRL1_BUTTONS_VERT           4
  35 #define ED_CTRL2_BUTTONS_HORIZ          3       // level
  36 #define ED_CTRL2_BUTTONS_VERT           2
  37 #define ED_CTRL3_BUTTONS_HORIZ          3       // CE and GE
  38 #define ED_CTRL3_BUTTONS_VERT           1
  39 #define ED_CTRL4_BUTTONS_HORIZ          2       // CE and GE
  40 #define ED_CTRL4_BUTTONS_VERT           1
  41 #define ED_CTRL5_BUTTONS_HORIZ          1       // properties
  42 #define ED_CTRL5_BUTTONS_VERT           1
  43 #define ED_CTRL6_BUTTONS_HORIZ          3       // properties
  44 #define ED_CTRL6_BUTTONS_VERT           1
  45 #define ED_CTRL7_BUTTONS_HORIZ          1       // palette
  46 #define ED_CTRL7_BUTTONS_VERT           1
  47
  48 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  49 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  50 #define ED_NUM_CTRL3_BUTTONS   (ED_CTRL3_BUTTONS_HORIZ * ED_CTRL3_BUTTONS_VERT)
  51 #define ED_NUM_CTRL4_BUTTONS   (ED_CTRL4_BUTTONS_HORIZ * ED_CTRL4_BUTTONS_VERT)
  52 #define ED_NUM_CTRL5_BUTTONS   (ED_CTRL5_BUTTONS_HORIZ * ED_CTRL5_BUTTONS_VERT)
  53 #define ED_NUM_CTRL6_BUTTONS   (ED_CTRL6_BUTTONS_HORIZ * ED_CTRL6_BUTTONS_VERT)
  54 #define ED_NUM_CTRL7_BUTTONS   (ED_CTRL7_BUTTONS_HORIZ * ED_CTRL7_BUTTONS_VERT)
  55 #define ED_NUM_CTRL1_2_BUTTONS (ED_NUM_CTRL1_BUTTONS   + ED_NUM_CTRL2_BUTTONS)
  56 #define ED_NUM_CTRL1_3_BUTTONS (ED_NUM_CTRL1_2_BUTTONS + ED_NUM_CTRL3_BUTTONS)
  57 #define ED_NUM_CTRL1_4_BUTTONS (ED_NUM_CTRL1_3_BUTTONS + ED_NUM_CTRL4_BUTTONS)
  58 #define ED_NUM_CTRL1_5_BUTTONS (ED_NUM_CTRL1_4_BUTTONS + ED_NUM_CTRL5_BUTTONS)
  59 #define ED_NUM_CTRL1_6_BUTTONS (ED_NUM_CTRL1_5_BUTTONS + ED_NUM_CTRL6_BUTTONS)
  60 #define ED_NUM_CTRL1_7_BUTTONS (ED_NUM_CTRL1_6_BUTTONS + ED_NUM_CTRL7_BUTTONS)
  61 #define ED_NUM_CTRL_BUTTONS    ED_NUM_CTRL1_7_BUTTONS
  62
  63 // values for the element list
  64 #define ED_ELEMENTLIST_XPOS             (editor.palette.x)
  65 #define ED_ELEMENTLIST_YPOS             (editor.palette.y)
  66 #define ED_ELEMENTLIST_XSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].width)
  67 #define ED_ELEMENTLIST_YSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].height)
  68 #define ED_ELEMENTLIST_COLS             MAX(1, editor.palette.cols)
  69 #define ED_ELEMENTLIST_ROWS             MAX(1, editor.palette.rows)
  70 #define ED_ELEMENTLIST_BUTTONS_HORIZ    (ED_ELEMENTLIST_COLS)
  71 #define ED_ELEMENTLIST_BUTTONS_VERT     (ED_ELEMENTLIST_ROWS)
  72 #define ED_NUM_ELEMENTLIST_BUTTONS      (ED_ELEMENTLIST_BUTTONS_HORIZ * \
  73                                          ED_ELEMENTLIST_BUTTONS_VERT)
  74
  75 // standard distances
  76 #define ED_GADGET_NORMAL_DISTANCE       (editor.gadget.normal_spacing)
  77 #define ED_GADGET_SMALL_DISTANCE        (editor.gadget.small_spacing)
  78 #define ED_GADGET_TINY_DISTANCE         (editor.gadget.tiny_spacing)
  79 #define ED_GADGET_LINE_DISTANCE         (editor.gadget.line_spacing)
  80 #define ED_GADGET_TEXT_DISTANCE         (editor.gadget.text_spacing)
  81 #define ED_TAB_BAR_HEIGHT               (editor.gadget.separator_line.height)
  82 #define ED_DRAWINGAREA_TEXT_DISTANCE    (ED_GADGET_TEXT_DISTANCE +      \
  83                                          ED_DRAWINGAREA_BORDER_SIZE)
  84 #define ED_GADGET_SPACE_DISTANCE        (getFontWidth(FONT_TEXT_1))
  85
  86 // values for drawingarea gadgets
  87 #define IMG_BORDER_1                    IMG_EDITOR_ELEMENT_BORDER
  88 #define IMG_BORDER_2                    IMG_EDITOR_ELEMENT_BORDER_INPUT
  89 #define ED_ELEMENT_BORDER               (graphic_info[IMG_BORDER_1].border_size)
  90 #define ED_DRAWINGAREA_BORDER_SIZE      (graphic_info[IMG_BORDER_2].border_size)
  91 #define ED_DRAWINGAREA_TILE_SIZE        (editor.drawingarea.tile_size)
  92
  93 // values for checkbutton gadgets
  94 #define ED_CHECKBUTTON_XSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].width)
  95 #define ED_CHECKBUTTON_YSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].height)
  96
  97 #define ED_TABBUTTON_XSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].width)
  98 #define ED_TABBUTTON_YSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].height)
  99
 100 #define ED_SETTINGS_LEVEL_TABS_X        (editor.settings.tabs.x)
 101 #define ED_SETTINGS_LEVEL_TABS_Y        (editor.settings.tabs.y)
 102 #define ED_SETTINGS_ELEMENT_TABS_X      (editor.settings.tabs.x)
 103 #define ED_SETTINGS_ELEMENT_TABS_Y      (editor.settings.tabs.y +       \
 104                                          editor.settings.tabs.yoffset2)
 105
 106 #define ED_SETTINGS_TABS_XOFFSET        (editor.settings.tabs.draw_xoffset)
 107 #define ED_SETTINGS_TABS_YOFFSET        (editor.settings.tabs.draw_yoffset)
 108
 109 #define ED_LEVEL_TABS_XSTART            (ED_SETTINGS_LEVEL_TABS_X)
 110 #define ED_LEVEL_TABS_YSTART            (ED_SETTINGS_LEVEL_TABS_Y)
 111 #define ED_LEVEL_SETTINGS_XSTART        (ED_SETTINGS_LEVEL_TABS_X +     \
 112                                          ED_SETTINGS_TABS_XOFFSET)
 113 #define ED_LEVEL_SETTINGS_YSTART        (ED_SETTINGS_LEVEL_TABS_Y +     \
 114                                          ED_TABBUTTON_YSIZE +           \
 115                                          ED_GADGET_TINY_DISTANCE +      \
 116                                          ED_TAB_BAR_HEIGHT +            \
 117                                          ED_SETTINGS_TABS_YOFFSET +     \
 118                                          getFontHeight(FONT_TEXT_1) +   \
 119                                          ED_GADGET_TEXT_DISTANCE)
 120 #define ED_ELEMENT_TABS_XSTART          (ED_SETTINGS_ELEMENT_TABS_X)
 121 #define ED_ELEMENT_TABS_YSTART          (ED_SETTINGS_ELEMENT_TABS_Y)
 122 #define ED_ELEMENT_SETTINGS_XSTART      (ED_SETTINGS_ELEMENT_TABS_X +   \
 123                                          ED_SETTINGS_TABS_XOFFSET)
 124 #define ED_ELEMENT_SETTINGS_YSTART      (ED_SETTINGS_ELEMENT_TABS_Y +   \
 125                                          ED_TABBUTTON_YSIZE +           \
 126                                          ED_GADGET_TINY_DISTANCE +      \
 127                                          ED_TAB_BAR_HEIGHT +            \
 128                                          ED_SETTINGS_TABS_YOFFSET)
 129
 130 #define ED_SETTINGS_XOFFSET             (ED_CHECKBUTTON_XSIZE +         \
 131                                          ED_GADGET_TEXT_DISTANCE)
 132 #define ED_SETTINGS_YOFFSET             (ED_CHECKBUTTON_YSIZE +         \
 133                                          ED_GADGET_LINE_DISTANCE)
 134
 135 #define ED_POS_RANGE                    (10000)
 136 #define ED_POS_LEVEL_TABS_FIRST         (1 * ED_POS_RANGE)
 137 #define ED_POS_LEVEL_TABS_LAST          (2 * ED_POS_RANGE - 1)
 138 #define ED_POS_LEVEL_SETTINGS_FIRST     (2 * ED_POS_RANGE)
 139 #define ED_POS_LEVEL_SETTINGS_LAST      (3 * ED_POS_RANGE - 1)
 140 #define ED_POS_ELEMENT_TABS_FIRST       (3 * ED_POS_RANGE)
 141 #define ED_POS_ELEMENT_TABS_LAST        (4 * ED_POS_RANGE - 1)
 142 #define ED_POS_ELEMENT_SETTINGS_FIRST   (4 * ED_POS_RANGE)
 143 #define ED_POS_ELEMENT_SETTINGS_LAST    (5 * ED_POS_RANGE - 1)
 144
 145 #define ED_LEVEL_TABS_XPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 146 #define ED_LEVEL_TABS_YPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 147
 148 #define ED_LEVEL_SETTINGS_XPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 149 #define ED_LEVEL_SETTINGS_YPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 150
 151 #define ED_ELEMENT_TABS_XPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 152 #define ED_ELEMENT_TABS_YPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 153
 154 #define ED_ELEMENT_SETTINGS_XPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 155 #define ED_ELEMENT_SETTINGS_YPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 156
 157 #define IS_POS_LEVEL_TABS(n)          ((n) >= ED_POS_LEVEL_TABS_FIRST && \
 158                                        (n) <= ED_POS_LEVEL_TABS_LAST)
 159 #define IS_POS_LEVEL_SETTINGS(n)      ((n) >= ED_POS_LEVEL_SETTINGS_FIRST && \
 160                                        (n) <= ED_POS_LEVEL_SETTINGS_LAST)
 161 #define IS_POS_ELEMENT_TABS(n)        ((n) >= ED_POS_ELEMENT_TABS_FIRST && \
 162                                        (n) <= ED_POS_ELEMENT_TABS_LAST)
 163 #define IS_POS_ELEMENT_SETTINGS(n)    ((n) >= ED_POS_ELEMENT_SETTINGS_FIRST && \
 164                                        (n) <= ED_POS_ELEMENT_SETTINGS_LAST)
 165
 166 #define ED_LEVEL_TABS_LINE(n)           ((n) - ED_POS_LEVEL_TABS_FIRST)
 167 #define ED_LEVEL_SETTINGS_LINE(n)       ((n) - ED_POS_LEVEL_SETTINGS_FIRST)
 168 #define ED_ELEMENT_TABS_LINE(n)         ((n) - ED_POS_ELEMENT_TABS_FIRST)
 169 #define ED_ELEMENT_SETTINGS_LINE(n)     ((n) - ED_POS_ELEMENT_SETTINGS_FIRST)
 170
 171 #define ED_LEVEL_TABS_X(n)              (ED_LEVEL_TABS_XSTART + \
 172                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 173 #define ED_LEVEL_TABS_Y(n)              (ED_LEVEL_TABS_YSTART + \
 174                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 175
 176 #define ED_LEVEL_SETTINGS_X(n)          (ED_LEVEL_SETTINGS_XSTART +     \
 177                                          (n) * ED_SETTINGS_XOFFSET)
 178 #define ED_LEVEL_SETTINGS_Y(n)          (ED_LEVEL_SETTINGS_YSTART +     \
 179                                          (n) * ED_SETTINGS_YOFFSET)
 180
 181 #define ED_ELEMENT_TABS_X(n)            (ED_ELEMENT_TABS_XSTART +       \
 182                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 183 #define ED_ELEMENT_TABS_Y(n)            (ED_ELEMENT_TABS_YSTART +       \
 184                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 185
 186 #define ED_ELEMENT_SETTINGS_X(n)        (ED_ELEMENT_SETTINGS_XSTART +   \
 187                                          (n) * ED_SETTINGS_XOFFSET)
 188 #define ED_ELEMENT_SETTINGS_Y(n)        (ED_ELEMENT_SETTINGS_YSTART +   \
 189                                          (n) * ED_SETTINGS_YOFFSET)
 190
 191 #define ED_POS_TO_LEVEL_TABS_X(n)       \
 192   (ED_LEVEL_TABS_X(ED_LEVEL_TABS_LINE(n)))
 193 #define ED_POS_TO_LEVEL_TABS_Y(n)       \
 194   (ED_LEVEL_TABS_Y(ED_LEVEL_TABS_LINE(n)))
 195
 196 #define ED_POS_TO_LEVEL_SETTINGS_X(n)   \
 197   (ED_LEVEL_SETTINGS_X(ED_LEVEL_SETTINGS_LINE(n)))
 198 #define ED_POS_TO_LEVEL_SETTINGS_Y(n)   \
 199   (ED_LEVEL_SETTINGS_Y(ED_LEVEL_SETTINGS_LINE(n)))
 200
 201 #define ED_POS_TO_ELEMENT_TABS_X(n)     \
 202   (ED_ELEMENT_TABS_X(ED_ELEMENT_TABS_LINE(n)))
 203 #define ED_POS_TO_ELEMENT_TABS_Y(n)     \
 204   (ED_ELEMENT_TABS_Y(ED_ELEMENT_TABS_LINE(n)))
 205
 206 #define ED_POS_TO_ELEMENT_SETTINGS_X(n) \
 207   (ED_ELEMENT_SETTINGS_X(ED_ELEMENT_SETTINGS_LINE(n)))
 208 #define ED_POS_TO_ELEMENT_SETTINGS_Y(n) \
 209   (ED_ELEMENT_SETTINGS_Y(ED_ELEMENT_SETTINGS_LINE(n)))
 210
 211 #define ED_SETTINGS_X(n)                (IS_POS_LEVEL_TABS(n) ? \
 212                                          ED_POS_TO_LEVEL_TABS_X(n) : \
 213                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 214                                          ED_POS_TO_LEVEL_SETTINGS_X(n) : \
 215                                          IS_POS_ELEMENT_TABS(n) ?       \
 216                                          ED_POS_TO_ELEMENT_TABS_X(n) : \
 217                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 218                                          ED_POS_TO_ELEMENT_SETTINGS_X(n) : (n))
 219 #define ED_SETTINGS_Y(n)                (IS_POS_LEVEL_TABS(n) ? \
 220                                          ED_POS_TO_LEVEL_TABS_Y(n) : \
 221                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 222                                          ED_POS_TO_LEVEL_SETTINGS_Y(n) : \
 223                                          IS_POS_ELEMENT_TABS(n) ?       \
 224                                          ED_POS_TO_ELEMENT_TABS_Y(n) : \
 225                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 226                                          ED_POS_TO_ELEMENT_SETTINGS_Y(n) : (n))
 227
 228 #define ED_SETTINGS_XOFF(n)             (5 * ((n) % 4) *                \
 229                                          ED_DRAWINGAREA_TILE_SIZE)
 230 #define ED_SETTINGS_YOFF(n)             (5 * ((n) / 4) *                \
 231                                          ED_DRAWINGAREA_TILE_SIZE)
 232
 233 #define ED_AREA_XOFFSET_1(n)            ((n) != 0 ?                     \
 234                                          ED_DRAWINGAREA_BORDER_SIZE : 0)
 235 #define ED_AREA_YOFFSET_1(n)            ((n) != 0 ?                     \
 236                                          (ED_CHECKBUTTON_YSIZE -        \
 237                                           ED_DRAWINGAREA_TILE_SIZE) / 2 : 0)
 238
 239 #define ED_AREA_XOFFSET_2(n)      (0)
 240 #define ED_AREA_YOFFSET_2(n)      ((n) == 3 ?                   \
 241                                    ((n) - 1) * ED_DRAWINGAREA_TILE_SIZE / 2 : 0)
 242
 243 #define ED_AREA_SETTINGS_X(i)      (ED_SETTINGS_X((i).x) +              \
 244                                     ED_SETTINGS_XOFF((i).xoffset) +     \
 245                                     ED_AREA_XOFFSET_1((i).x) -          \
 246                                     ED_AREA_XOFFSET_2((i).area_xsize))
 247 #define ED_AREA_SETTINGS_Y(i)      (ED_SETTINGS_Y((i).y) +              \
 248                                     ED_SETTINGS_YOFF((i).yoffset) +     \
 249                                     ED_AREA_YOFFSET_1((i).y) -          \
 250                                     ED_AREA_YOFFSET_2((i).area_ysize))
 251
 252 // values for element content drawing areas
 253 #define ED_AREA_1X1_LSETTINGS_XPOS(n)   ED_LEVEL_SETTINGS_XPOS(n)
 254 #define ED_AREA_1X1_LSETTINGS_YPOS(n)   ED_LEVEL_SETTINGS_YPOS(n)
 255 #define ED_AREA_1X1_LSETTINGS_XOFF      (0)
 256 #define ED_AREA_1X1_LSETTINGS_YOFF      (0)
 257
 258 #define ED_AREA_1X1_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 259 #define ED_AREA_1X1_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 260 #define ED_AREA_1X1_SETTINGS_XOFF       (0)
 261 #define ED_AREA_1X1_SETTINGS_YOFF       (0)
 262
 263 #define ED_AREA_3X3_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 264 #define ED_AREA_3X3_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 265 #define ED_AREA_3X3_SETTINGS_XOFF       (0)
 266 #define ED_AREA_3X3_SETTINGS_YOFF       (0)
 267
 268 // element content
 269 #define ED_AREA_ELEMENT_CONTENT_XOFF(n) (n)
 270 #define ED_AREA_ELEMENT_CONTENT_YOFF(n) (n)
 271
 272 // yamyam content
 273 #define ED_XPOS_YAM                     0
 274 #define ED_YPOS_YAM                     5
 275 #define ED_AREA_YAMYAM_CONTENT_XPOS     ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_YAM)
 276 #define ED_AREA_YAMYAM_CONTENT_YPOS     ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_YAM)
 277 #define ED_AREA_YAMYAM_CONTENT_XOFF(n)  ED_AREA_ELEMENT_CONTENT_XOFF(n)
 278 #define ED_AREA_YAMYAM_CONTENT_YOFF(n)  ED_AREA_ELEMENT_CONTENT_YOFF(n)
 279 #define ED_AREA_YAMYAM_CONTENT_X(n)     (ED_ELEMENT_SETTINGS_X(ED_XPOS_YAM) + \
 280                                          ED_SETTINGS_XOFF(n))
 281 #define ED_AREA_YAMYAM_CONTENT_Y(n)     (ED_ELEMENT_SETTINGS_Y(ED_YPOS_YAM) + \
 282                                          ED_SETTINGS_YOFF(n) +          \
 283                                          ED_AREA_YOFFSET_1(ED_YPOS_YAM) - \
 284                                          ED_AREA_YOFFSET_2(3))
 285
 286 // magic ball content
 287 #define ED_XPOS_BALL                    0
 288 #define ED_YPOS_BALL                    6
 289 #define ED_AREA_MAGIC_BALL_CONTENT_XPOS ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_BALL)
 290 #define ED_AREA_MAGIC_BALL_CONTENT_YPOS ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_BALL)
 291 #define ED_AREA_MAGIC_BALL_CONTENT_XOFF(n) ED_AREA_ELEMENT_CONTENT_XOFF(n)
 292 #define ED_AREA_MAGIC_BALL_CONTENT_YOFF(n) ED_AREA_ELEMENT_CONTENT_YOFF(n)
 293 #define ED_AREA_MAGIC_BALL_CONTENT_X(n) (ED_ELEMENT_SETTINGS_X(ED_XPOS_BALL) + \
 294                                          ED_SETTINGS_XOFF(n))
 295 #define ED_AREA_MAGIC_BALL_CONTENT_Y(n) (ED_ELEMENT_SETTINGS_Y(ED_YPOS_BALL) + \
 296                                          ED_SETTINGS_YOFF(n) +          \
 297                                          ED_AREA_YOFFSET_1(ED_YPOS_BALL) - \
 298                                          ED_AREA_YOFFSET_2(3))
 299
 300 // values for scrolling gadgets for drawing area
 301 #define ED_SCROLLBUTTON_XSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].width)
 302 #define ED_SCROLLBUTTON_YSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].height)
 303
 304 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 305 #define ED_SCROLL_UP_YPOS               (0)
 306 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 307 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 308 #define ED_SCROLL_LEFT_XPOS             (0)
 309 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 310 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 311 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 312 #define ED_SCROLL_HORIZONTAL_XPOS       (ED_SCROLL_LEFT_XPOS +          \
 313                                          ED_SCROLLBUTTON_XSIZE)
 314 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 315 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 316 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 317 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 318 #define ED_SCROLL_VERTICAL_YPOS         (ED_SCROLL_UP_YPOS +            \
 319                                          ED_SCROLLBUTTON_YSIZE)
 320 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 321 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 322
 323 // values for scrolling gadgets for element list
 324 #define ED_SCROLLBUTTON2_XSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].width)
 325 #define ED_SCROLLBUTTON2_YSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].height)
 326
 327 #define ED_SCROLL2_UP_XPOS              (ED_ELEMENTLIST_XPOS +          \
 328                                          ED_ELEMENTLIST_BUTTONS_HORIZ * \
 329                                          ED_ELEMENTLIST_XSIZE)
 330 #define ED_SCROLL2_UP_YPOS              ED_ELEMENTLIST_YPOS
 331 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 332 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS +           \
 333                                          ED_ELEMENTLIST_BUTTONS_VERT *  \
 334                                          ED_ELEMENTLIST_YSIZE -         \
 335                                          ED_SCROLLBUTTON2_YSIZE)
 336 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 337 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS +           \
 338                                          ED_SCROLLBUTTON2_YSIZE)
 339 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 340 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT *  \
 341                                          ED_ELEMENTLIST_YSIZE -         \
 342                                          2 * ED_SCROLLBUTTON2_YSIZE)
 343
 344 // values for ClearEditorGadgetInfoText() and HandleEditorGadgetInfoText()
 345 #define INFOTEXT_FONT           FONT_TEXT_2
 346 #define INFOTEXT_XSIZE          SXSIZE
 347 #define INFOTEXT_YSIZE          getFontHeight(INFOTEXT_FONT)
 348 #define INFOTEXT_YSIZE_FULL     (INFOTEXT_YSIZE + ED_GADGET_SMALL_DISTANCE)
 349 #define INFOTEXT_X              (editor.settings.tooltip.x)
 350 #define INFOTEXT_Y              (editor.settings.tooltip.y)
 351 #define INFOTEXT_XY_REDEFINED   (INFOTEXT_X != -1 || INFOTEXT_Y != -1)
 352 #define INFOTEXT_XPOS           SX + (INFOTEXT_XY_REDEFINED ? INFOTEXT_X : 0)
 353 #define INFOTEXT_YPOS           SY + (INFOTEXT_XY_REDEFINED ? INFOTEXT_Y : \
 354                                       SYSIZE - INFOTEXT_YSIZE)
 355
 356
 357 // ----------------------------------------------------------------------------
 358 // editor gadget definitions
 359 // ----------------------------------------------------------------------------
 360
 361 enum
 362 {
 363   GADGET_ID_NONE = -1,
 364
 365   // drawing toolbox buttons
 366
 367   GADGET_ID_SINGLE_ITEMS,
 368   GADGET_ID_CONNECTED_ITEMS,
 369   GADGET_ID_LINE,
 370   GADGET_ID_ARC,
 371   GADGET_ID_RECTANGLE,
 372   GADGET_ID_FILLED_BOX,
 373   GADGET_ID_WRAP_UP,
 374   GADGET_ID_TEXT,
 375   GADGET_ID_FLOOD_FILL,
 376   GADGET_ID_WRAP_LEFT,
 377   GADGET_ID_ZOOM,
 378   GADGET_ID_WRAP_RIGHT,
 379   GADGET_ID_RANDOM_PLACEMENT,
 380   GADGET_ID_GRAB_BRUSH,
 381   GADGET_ID_WRAP_DOWN,
 382   GADGET_ID_PICK_ELEMENT,
 383
 384   GADGET_ID_UNDO,
 385   GADGET_ID_CONF,
 386   GADGET_ID_SAVE,
 387   GADGET_ID_CLEAR,
 388   GADGET_ID_TEST,
 389   GADGET_ID_EXIT,
 390
 391   GADGET_ID_CUSTOM_COPY_FROM,
 392   GADGET_ID_CUSTOM_COPY_TO,
 393   GADGET_ID_CUSTOM_EXCHANGE,
 394   GADGET_ID_CUSTOM_COPY,
 395   GADGET_ID_CUSTOM_PASTE,
 396
 397   GADGET_ID_PROPERTIES,
 398   GADGET_ID_ELEMENT_LEFT,
 399   GADGET_ID_ELEMENT_MIDDLE,
 400   GADGET_ID_ELEMENT_RIGHT,
 401   GADGET_ID_PALETTE,
 402
 403   // counter gadget identifiers
 404
 405   GADGET_ID_SELECT_LEVEL_DOWN,
 406   GADGET_ID_SELECT_LEVEL_TEXT,
 407   GADGET_ID_SELECT_LEVEL_UP,
 408   GADGET_ID_LEVEL_XSIZE_DOWN,
 409   GADGET_ID_LEVEL_XSIZE_TEXT,
 410   GADGET_ID_LEVEL_XSIZE_UP,
 411   GADGET_ID_LEVEL_YSIZE_DOWN,
 412   GADGET_ID_LEVEL_YSIZE_TEXT,
 413   GADGET_ID_LEVEL_YSIZE_UP,
 414   GADGET_ID_LEVEL_RANDOM_DOWN,
 415   GADGET_ID_LEVEL_RANDOM_TEXT,
 416   GADGET_ID_LEVEL_RANDOM_UP,
 417   GADGET_ID_LEVEL_GEMSLIMIT_DOWN,
 418   GADGET_ID_LEVEL_GEMSLIMIT_TEXT,
 419   GADGET_ID_LEVEL_GEMSLIMIT_UP,
 420   GADGET_ID_LEVEL_TIMELIMIT_DOWN,
 421   GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 422   GADGET_ID_LEVEL_TIMELIMIT_UP,
 423   GADGET_ID_LEVEL_TIMESCORE_DOWN,
 424   GADGET_ID_LEVEL_TIMESCORE_TEXT,
 425   GADGET_ID_LEVEL_TIMESCORE_UP,
 426   GADGET_ID_LEVEL_RANDOM_SEED_DOWN,
 427   GADGET_ID_LEVEL_RANDOM_SEED_TEXT,
 428   GADGET_ID_LEVEL_RANDOM_SEED_UP,
 429   GADGET_ID_LEVELSET_NUM_LEVELS_DOWN,
 430   GADGET_ID_LEVELSET_NUM_LEVELS_TEXT,
 431   GADGET_ID_LEVELSET_NUM_LEVELS_UP,
 432   GADGET_ID_BD_CYCLE_DELAY_MS_DOWN,
 433   GADGET_ID_BD_CYCLE_DELAY_MS_TEXT,
 434   GADGET_ID_BD_CYCLE_DELAY_MS_UP,
 435   GADGET_ID_BD_CYCLE_DELAY_C64_DOWN,
 436   GADGET_ID_BD_CYCLE_DELAY_C64_TEXT,
 437   GADGET_ID_BD_CYCLE_DELAY_C64_UP,
 438   GADGET_ID_BD_HATCHING_DELAY_CYCLES_DOWN,
 439   GADGET_ID_BD_HATCHING_DELAY_CYCLES_TEXT,
 440   GADGET_ID_BD_HATCHING_DELAY_CYCLES_UP,
 441   GADGET_ID_BD_HATCHING_DELAY_SECONDS_DOWN,
 442   GADGET_ID_BD_HATCHING_DELAY_SECONDS_TEXT,
 443   GADGET_ID_BD_HATCHING_DELAY_SECONDS_UP,
 444   GADGET_ID_BD_PUSHING_PROB_DOWN,
 445   GADGET_ID_BD_PUSHING_PROB_TEXT,
 446   GADGET_ID_BD_PUSHING_PROB_UP,
 447   GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_DOWN,
 448   GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_TEXT,
 449   GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_UP,
 450   GADGET_ID_ELEMENT_VALUE1_DOWN,
 451   GADGET_ID_ELEMENT_VALUE1_TEXT,
 452   GADGET_ID_ELEMENT_VALUE1_UP,
 453   GADGET_ID_ELEMENT_VALUE2_DOWN,
 454   GADGET_ID_ELEMENT_VALUE2_TEXT,
 455   GADGET_ID_ELEMENT_VALUE2_UP,
 456   GADGET_ID_ELEMENT_VALUE3_DOWN,
 457   GADGET_ID_ELEMENT_VALUE3_TEXT,
 458   GADGET_ID_ELEMENT_VALUE3_UP,
 459   GADGET_ID_ELEMENT_VALUE4_DOWN,
 460   GADGET_ID_ELEMENT_VALUE4_TEXT,
 461   GADGET_ID_ELEMENT_VALUE4_UP,
 462   GADGET_ID_YAMYAM_CONTENT_DOWN,
 463   GADGET_ID_YAMYAM_CONTENT_TEXT,
 464   GADGET_ID_YAMYAM_CONTENT_UP,
 465   GADGET_ID_BALL_CONTENT_DOWN,
 466   GADGET_ID_BALL_CONTENT_TEXT,
 467   GADGET_ID_BALL_CONTENT_UP,
 468   GADGET_ID_ANDROID_CONTENT_DOWN,
 469   GADGET_ID_ANDROID_CONTENT_TEXT,
 470   GADGET_ID_ANDROID_CONTENT_UP,
 471   GADGET_ID_ENVELOPE_XSIZE_DOWN,
 472   GADGET_ID_ENVELOPE_XSIZE_TEXT,
 473   GADGET_ID_ENVELOPE_XSIZE_UP,
 474   GADGET_ID_ENVELOPE_YSIZE_DOWN,
 475   GADGET_ID_ENVELOPE_YSIZE_TEXT,
 476   GADGET_ID_ENVELOPE_YSIZE_UP,
 477   GADGET_ID_INVENTORY_SIZE_DOWN,
 478   GADGET_ID_INVENTORY_SIZE_TEXT,
 479   GADGET_ID_INVENTORY_SIZE_UP,
 480   GADGET_ID_MM_BALL_CONTENT_DOWN,
 481   GADGET_ID_MM_BALL_CONTENT_TEXT,
 482   GADGET_ID_MM_BALL_CONTENT_UP,
 483   GADGET_ID_CUSTOM_SCORE_DOWN,
 484   GADGET_ID_CUSTOM_SCORE_TEXT,
 485   GADGET_ID_CUSTOM_SCORE_UP,
 486   GADGET_ID_CUSTOM_GEMCOUNT_DOWN,
 487   GADGET_ID_CUSTOM_GEMCOUNT_TEXT,
 488   GADGET_ID_CUSTOM_GEMCOUNT_UP,
 489   GADGET_ID_CUSTOM_VALUE_FIX_DOWN,
 490   GADGET_ID_CUSTOM_VALUE_FIX_TEXT,
 491   GADGET_ID_CUSTOM_VALUE_FIX_UP,
 492   GADGET_ID_CUSTOM_VALUE_RND_DOWN,
 493   GADGET_ID_CUSTOM_VALUE_RND_TEXT,
 494   GADGET_ID_CUSTOM_VALUE_RND_UP,
 495   GADGET_ID_PUSH_DELAY_FIX_DOWN,
 496   GADGET_ID_PUSH_DELAY_FIX_TEXT,
 497   GADGET_ID_PUSH_DELAY_FIX_UP,
 498   GADGET_ID_PUSH_DELAY_RND_DOWN,
 499   GADGET_ID_PUSH_DELAY_RND_TEXT,
 500   GADGET_ID_PUSH_DELAY_RND_UP,
 501   GADGET_ID_DROP_DELAY_FIX_DOWN,
 502   GADGET_ID_DROP_DELAY_FIX_TEXT,
 503   GADGET_ID_DROP_DELAY_FIX_UP,
 504   GADGET_ID_DROP_DELAY_RND_DOWN,
 505   GADGET_ID_DROP_DELAY_RND_TEXT,
 506   GADGET_ID_DROP_DELAY_RND_UP,
 507   GADGET_ID_MOVE_DELAY_FIX_DOWN,
 508   GADGET_ID_MOVE_DELAY_FIX_TEXT,
 509   GADGET_ID_MOVE_DELAY_FIX_UP,
 510   GADGET_ID_MOVE_DELAY_RND_DOWN,
 511   GADGET_ID_MOVE_DELAY_RND_TEXT,
 512   GADGET_ID_MOVE_DELAY_RND_UP,
 513   GADGET_ID_STEP_DELAY_FIX_DOWN,
 514   GADGET_ID_STEP_DELAY_FIX_TEXT,
 515   GADGET_ID_STEP_DELAY_FIX_UP,
 516   GADGET_ID_STEP_DELAY_RND_DOWN,
 517   GADGET_ID_STEP_DELAY_RND_TEXT,
 518   GADGET_ID_STEP_DELAY_RND_UP,
 519   GADGET_ID_EXPLOSION_DELAY_DOWN,
 520   GADGET_ID_EXPLOSION_DELAY_TEXT,
 521   GADGET_ID_EXPLOSION_DELAY_UP,
 522   GADGET_ID_IGNITION_DELAY_DOWN,
 523   GADGET_ID_IGNITION_DELAY_TEXT,
 524   GADGET_ID_IGNITION_DELAY_UP,
 525   GADGET_ID_CHANGE_DELAY_FIX_DOWN,
 526   GADGET_ID_CHANGE_DELAY_FIX_TEXT,
 527   GADGET_ID_CHANGE_DELAY_FIX_UP,
 528   GADGET_ID_CHANGE_DELAY_RND_DOWN,
 529   GADGET_ID_CHANGE_DELAY_RND_TEXT,
 530   GADGET_ID_CHANGE_DELAY_RND_UP,
 531   GADGET_ID_CHANGE_CONT_RND_DOWN,
 532   GADGET_ID_CHANGE_CONT_RND_TEXT,
 533   GADGET_ID_CHANGE_CONT_RND_UP,
 534   GADGET_ID_GROUP_CONTENT_DOWN,
 535   GADGET_ID_GROUP_CONTENT_TEXT,
 536   GADGET_ID_GROUP_CONTENT_UP,
 537
 538   // drawing area identifiers
 539
 540   GADGET_ID_DRAWING_LEVEL,
 541   GADGET_ID_YAMYAM_CONTENT_0,
 542   GADGET_ID_YAMYAM_CONTENT_1,
 543   GADGET_ID_YAMYAM_CONTENT_2,
 544   GADGET_ID_YAMYAM_CONTENT_3,
 545   GADGET_ID_YAMYAM_CONTENT_4,
 546   GADGET_ID_YAMYAM_CONTENT_5,
 547   GADGET_ID_YAMYAM_CONTENT_6,
 548   GADGET_ID_YAMYAM_CONTENT_7,
 549   GADGET_ID_MAGIC_BALL_CONTENT_0,
 550   GADGET_ID_MAGIC_BALL_CONTENT_1,
 551   GADGET_ID_MAGIC_BALL_CONTENT_2,
 552   GADGET_ID_MAGIC_BALL_CONTENT_3,
 553   GADGET_ID_MAGIC_BALL_CONTENT_4,
 554   GADGET_ID_MAGIC_BALL_CONTENT_5,
 555   GADGET_ID_MAGIC_BALL_CONTENT_6,
 556   GADGET_ID_MAGIC_BALL_CONTENT_7,
 557   GADGET_ID_ANDROID_CONTENT,
 558   GADGET_ID_AMOEBA_CONTENT,
 559   GADGET_ID_BD_SNAP_ELEMENT,
 560   GADGET_ID_BD_AMOEBA_CONTENT_TOO_BIG,
 561   GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED,
 562   GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
 563   GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
 564   GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
 565   GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
 566   GADGET_ID_START_ELEMENT,
 567   GADGET_ID_ARTWORK_ELEMENT,
 568   GADGET_ID_EXPLOSION_ELEMENT,
 569   GADGET_ID_INVENTORY_CONTENT,
 570   GADGET_ID_MM_BALL_CONTENT,
 571   GADGET_ID_CUSTOM_GRAPHIC,
 572   GADGET_ID_CUSTOM_CONTENT,
 573   GADGET_ID_CUSTOM_MOVE_ENTER,
 574   GADGET_ID_CUSTOM_MOVE_LEAVE,
 575   GADGET_ID_CUSTOM_CHANGE_TARGET,
 576   GADGET_ID_CUSTOM_CHANGE_CONTENT,
 577   GADGET_ID_CUSTOM_CHANGE_TRIGGER,
 578   GADGET_ID_CUSTOM_CHANGE_ACTION,
 579   GADGET_ID_GROUP_CONTENT,
 580   GADGET_ID_RANDOM_BACKGROUND,
 581
 582   // text input identifiers
 583
 584   GADGET_ID_LEVEL_NAME,
 585   GADGET_ID_LEVEL_AUTHOR,
 586   GADGET_ID_LEVELSET_NAME,
 587   GADGET_ID_LEVELSET_AUTHOR,
 588   GADGET_ID_ELEMENT_NAME,
 589
 590   // text area identifiers
 591
 592   GADGET_ID_ENVELOPE_INFO,
 593
 594   // selectbox identifiers
 595
 596   GADGET_ID_TIME_OR_STEPS,
 597   GADGET_ID_TIME_SCORE_BASE,
 598   GADGET_ID_GAME_ENGINE_TYPE,
 599   GADGET_ID_BD_SCHEDULING_TYPE,
 600   GADGET_ID_LEVELSET_SAVE_MODE,
 601   GADGET_ID_WIND_DIRECTION,
 602   GADGET_ID_PLAYER_SPEED,
 603   GADGET_ID_MM_BALL_CHOICE_MODE,
 604   GADGET_ID_CUSTOM_WALK_TO_ACTION,
 605   GADGET_ID_CUSTOM_EXPLOSION_TYPE,
 606   GADGET_ID_CUSTOM_DEADLINESS,
 607   GADGET_ID_CUSTOM_MOVE_PATTERN,
 608   GADGET_ID_CUSTOM_MOVE_DIRECTION,
 609   GADGET_ID_CUSTOM_MOVE_STEPSIZE,
 610   GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
 611   GADGET_ID_CUSTOM_SMASH_TARGETS,
 612   GADGET_ID_CUSTOM_SLIPPERY_TYPE,
 613   GADGET_ID_CUSTOM_ACCESS_TYPE,
 614   GADGET_ID_CUSTOM_ACCESS_LAYER,
 615   GADGET_ID_CUSTOM_ACCESS_PROTECTED,
 616   GADGET_ID_CUSTOM_ACCESS_DIRECTION,
 617   GADGET_ID_CHANGE_TIME_UNITS,
 618   GADGET_ID_CHANGE_DIRECT_ACTION,
 619   GADGET_ID_CHANGE_OTHER_ACTION,
 620   GADGET_ID_CHANGE_SIDE,
 621   GADGET_ID_CHANGE_PLAYER,
 622   GADGET_ID_CHANGE_PAGE,
 623   GADGET_ID_CHANGE_REPLACE_WHEN,
 624   GADGET_ID_ACTION_TYPE,
 625   GADGET_ID_ACTION_MODE,
 626   GADGET_ID_ACTION_ARG,
 627   GADGET_ID_SELECT_CHANGE_PAGE,
 628   GADGET_ID_GROUP_CHOICE_MODE,
 629
 630   // textbutton identifiers
 631
 632   GADGET_ID_LEVELCONFIG_LEVEL,
 633   GADGET_ID_LEVELCONFIG_LEVELSET,
 634   GADGET_ID_LEVELCONFIG_EDITOR,
 635   GADGET_ID_LEVELCONFIG_ENGINE,
 636   GADGET_ID_PROPERTIES_INFO,
 637   GADGET_ID_PROPERTIES_CONFIG,
 638   GADGET_ID_PROPERTIES_CONFIG_1,
 639   GADGET_ID_PROPERTIES_CONFIG_2,
 640   GADGET_ID_PROPERTIES_CHANGE,
 641   GADGET_ID_SAVE_AS_TEMPLATE_1,
 642   GADGET_ID_SAVE_AS_TEMPLATE_2,
 643   GADGET_ID_SAVE_LEVELSET,
 644   GADGET_ID_ADD_CHANGE_PAGE,
 645   GADGET_ID_DEL_CHANGE_PAGE,
 646
 647   // graphicbutton identifiers
 648
 649   GADGET_ID_PREV_CHANGE_PAGE,
 650   GADGET_ID_NEXT_CHANGE_PAGE,
 651   GADGET_ID_COPY_CHANGE_PAGE,
 652   GADGET_ID_PASTE_CHANGE_PAGE,
 653
 654   // gadgets for scrolling of drawing area
 655
 656   GADGET_ID_SCROLL_UP,
 657   GADGET_ID_SCROLL_DOWN,
 658   GADGET_ID_SCROLL_LEFT,
 659   GADGET_ID_SCROLL_RIGHT,
 660   GADGET_ID_SCROLL_HORIZONTAL,
 661   GADGET_ID_SCROLL_VERTICAL,
 662
 663   // gadgets for scrolling element list
 664
 665   GADGET_ID_SCROLL_LIST_UP,
 666   GADGET_ID_SCROLL_LIST_DOWN,
 667   GADGET_ID_SCROLL_LIST_VERTICAL,
 668
 669   // checkbuttons/radiobuttons for level/element properties
 670
 671   GADGET_ID_AUTO_COUNT_GEMS,
 672   GADGET_ID_RATE_TIME_OVER_SCORE,
 673   GADGET_ID_USE_LEVELSET_ARTWORK,
 674   GADGET_ID_COPY_LEVEL_TEMPLATE,
 675   GADGET_ID_RANDOM_PERCENTAGE,
 676   GADGET_ID_RANDOM_QUANTITY,
 677   GADGET_ID_RANDOM_RESTRICTED,
 678   GADGET_ID_BD_INTERMISSION,
 679   GADGET_ID_BD_PAL_TIMING,
 680   GADGET_ID_BD_LINE_SHIFTING_BORDERS,
 681   GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW,
 682   GADGET_ID_BD_SHORT_EXPLOSIONS,
 683   GADGET_ID_BD_GRAVITY_AFFECTS_ALL,
 684   GADGET_ID_STICK_ELEMENT,
 685   GADGET_ID_EM_SLIPPERY_GEMS,
 686   GADGET_ID_EM_EXPLODES_BY_FIRE,
 687   GADGET_ID_USE_SPRING_BUG,
 688   GADGET_ID_USE_TIME_ORB_BUG,
 689   GADGET_ID_USE_LIFE_BUGS,
 690   GADGET_ID_RANDOM_BALL_CONTENT,
 691   GADGET_ID_INITIAL_BALL_ACTIVE,
 692   GADGET_ID_GROW_INTO_DIGGABLE,
 693   GADGET_ID_SB_FIELDS_NEEDED,
 694   GADGET_ID_SB_OBJECTS_NEEDED,
 695   GADGET_ID_AUTO_EXIT_SOKOBAN,
 696   GADGET_ID_SOLVED_BY_ONE_PLAYER,
 697   GADGET_ID_FINISH_DIG_COLLECT,
 698   GADGET_ID_KEEP_WALKABLE_CE,
 699   GADGET_ID_CONTINUOUS_SNAPPING,
 700   GADGET_ID_BLOCK_SNAP_FIELD,
 701   GADGET_ID_BLOCK_LAST_FIELD,
 702   GADGET_ID_SP_BLOCK_LAST_FIELD,
 703   GADGET_ID_INSTANT_RELOCATION,
 704   GADGET_ID_SHIFTED_RELOCATION,
 705   GADGET_ID_LAZY_RELOCATION,
 706   GADGET_ID_USE_START_ELEMENT,
 707   GADGET_ID_USE_ARTWORK_ELEMENT,
 708   GADGET_ID_USE_EXPLOSION_ELEMENT,
 709   GADGET_ID_INITIAL_GRAVITY,
 710   GADGET_ID_USE_INITIAL_INVENTORY,
 711   GADGET_ID_CAN_PASS_TO_WALKABLE,
 712   GADGET_ID_CAN_FALL_INTO_ACID,
 713   GADGET_ID_CAN_MOVE_INTO_ACID,
 714   GADGET_ID_DONT_COLLIDE_WITH,
 715   GADGET_ID_BD_DIAGONAL_MOVEMENTS,
 716   GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE,
 717   GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
 718   GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING,
 719   GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
 720   GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
 721   GADGET_ID_BD_AMOEBA_START_IMMEDIATELY,
 722   GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
 723   GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS,
 724   GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER,
 725   GADGET_ID_BD_VOODOO_DIES_BY_ROCK,
 726   GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
 727   GADGET_ID_BD_SLIME_IS_PREDICTABLE,
 728   GADGET_ID_ENVELOPE_AUTOWRAP,
 729   GADGET_ID_ENVELOPE_CENTERED,
 730   GADGET_ID_MM_LASER_RED,
 731   GADGET_ID_MM_LASER_GREEN,
 732   GADGET_ID_MM_LASER_BLUE,
 733   GADGET_ID_DF_LASER_RED,
 734   GADGET_ID_DF_LASER_GREEN,
 735   GADGET_ID_DF_LASER_BLUE,
 736   GADGET_ID_ROTATE_MM_BALL_CONTENT,
 737   GADGET_ID_EXPLODE_MM_BALL,
 738   GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 739   GADGET_ID_CUSTOM_CAN_EXPLODE,
 740   GADGET_ID_CUSTOM_EXPLODE_FIRE,
 741   GADGET_ID_CUSTOM_EXPLODE_SMASH,
 742   GADGET_ID_CUSTOM_EXPLODE_IMPACT,
 743   GADGET_ID_CUSTOM_WALK_TO_OBJECT,
 744   GADGET_ID_CUSTOM_DEADLY,
 745   GADGET_ID_CUSTOM_CAN_MOVE,
 746   GADGET_ID_CUSTOM_CAN_FALL,
 747   GADGET_ID_CUSTOM_CAN_SMASH,
 748   GADGET_ID_CUSTOM_SLIPPERY,
 749   GADGET_ID_CUSTOM_ACCESSIBLE,
 750   GADGET_ID_CUSTOM_GRAV_REACHABLE,
 751   GADGET_ID_CUSTOM_USE_LAST_VALUE,
 752   GADGET_ID_CUSTOM_USE_GRAPHIC,
 753   GADGET_ID_CUSTOM_USE_TEMPLATE_1,
 754   GADGET_ID_CUSTOM_USE_TEMPLATE_2,
 755   GADGET_ID_CUSTOM_USE_TEMPLATE_3,
 756   GADGET_ID_CUSTOM_CAN_CHANGE,
 757   GADGET_ID_CHANGE_USE_CONTENT,
 758   GADGET_ID_CHANGE_USE_EXPLOSION,
 759   GADGET_ID_CHANGE_ONLY_COMPLETE,
 760   GADGET_ID_CHANGE_USE_RANDOM,
 761   GADGET_ID_CHANGE_HAS_ACTION,
 762   GADGET_ID_CHANGE_DELAY,
 763   GADGET_ID_CHANGE_BY_DIRECT_ACT,
 764   GADGET_ID_CHANGE_BY_OTHER_ACT,
 765
 766   NUM_STATIC_GADGET_IDS
 767 };
 768
 769 // gadgets for buttons in element list (dynamic)
 770 #define GADGET_ID_ELEMENTLIST_FIRST     (NUM_STATIC_GADGET_IDS)
 771 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 772                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 773
 774 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 775
 776 // radio button numbers
 777 enum
 778 {
 779   RADIO_NR_NONE,
 780   RADIO_NR_DRAWING_TOOLBOX,
 781   RADIO_NR_RANDOM_ELEMENTS
 782 };
 783
 784 // values for counter gadgets
 785 enum
 786 {
 787   ED_COUNTER_ID_SELECT_LEVEL,
 788   ED_COUNTER_ID_LEVEL_XSIZE,
 789   ED_COUNTER_ID_LEVEL_YSIZE,
 790   ED_COUNTER_ID_LEVEL_GEMSLIMIT,
 791   ED_COUNTER_ID_LEVEL_TIMELIMIT,
 792   ED_COUNTER_ID_LEVEL_TIMESCORE,
 793   ED_COUNTER_ID_LEVEL_RANDOM_SEED,
 794   ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
 795   ED_COUNTER_ID_LEVEL_RANDOM,
 796   ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
 797   ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
 798   ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
 799   ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
 800   ED_COUNTER_ID_BD_PUSHING_PROB,
 801   ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
 802   ED_COUNTER_ID_ELEMENT_VALUE1,
 803   ED_COUNTER_ID_ELEMENT_VALUE2,
 804   ED_COUNTER_ID_ELEMENT_VALUE3,
 805   ED_COUNTER_ID_ELEMENT_VALUE4,
 806   ED_COUNTER_ID_YAMYAM_CONTENT,
 807   ED_COUNTER_ID_BALL_CONTENT,
 808   ED_COUNTER_ID_ANDROID_CONTENT,
 809   ED_COUNTER_ID_ENVELOPE_XSIZE,
 810   ED_COUNTER_ID_ENVELOPE_YSIZE,
 811   ED_COUNTER_ID_INVENTORY_SIZE,
 812   ED_COUNTER_ID_MM_BALL_CONTENT,
 813   ED_COUNTER_ID_CUSTOM_SCORE,
 814   ED_COUNTER_ID_CUSTOM_GEMCOUNT,
 815   ED_COUNTER_ID_CUSTOM_VALUE_FIX,
 816   ED_COUNTER_ID_CUSTOM_VALUE_RND,
 817   ED_COUNTER_ID_PUSH_DELAY_FIX,
 818   ED_COUNTER_ID_PUSH_DELAY_RND,
 819   ED_COUNTER_ID_DROP_DELAY_FIX,
 820   ED_COUNTER_ID_DROP_DELAY_RND,
 821   ED_COUNTER_ID_MOVE_DELAY_FIX,
 822   ED_COUNTER_ID_MOVE_DELAY_RND,
 823   ED_COUNTER_ID_STEP_DELAY_FIX,
 824   ED_COUNTER_ID_STEP_DELAY_RND,
 825   ED_COUNTER_ID_EXPLOSION_DELAY,
 826   ED_COUNTER_ID_IGNITION_DELAY,
 827   ED_COUNTER_ID_GROUP_CONTENT,
 828   ED_COUNTER_ID_CHANGE_DELAY_FIX,
 829   ED_COUNTER_ID_CHANGE_DELAY_RND,
 830   ED_COUNTER_ID_CHANGE_CONT_RND,
 831
 832   ED_NUM_COUNTERBUTTONS
 833 };
 834
 835 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 836 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 837 #define ED_COUNTER_ID_LEVELSET_FIRST    ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 838 #define ED_COUNTER_ID_LEVELSET_LAST     ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 839 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 840 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 841
 842 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 843 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 844 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 845 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 846 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 847 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 848
 849 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 850 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 851
 852 // values for scrollbutton gadgets
 853 enum
 854 {
 855   ED_SCROLLBUTTON_ID_AREA_UP,
 856   ED_SCROLLBUTTON_ID_AREA_DOWN,
 857   ED_SCROLLBUTTON_ID_AREA_LEFT,
 858   ED_SCROLLBUTTON_ID_AREA_RIGHT,
 859   ED_SCROLLBUTTON_ID_LIST_UP,
 860   ED_SCROLLBUTTON_ID_LIST_DOWN,
 861
 862   ED_NUM_SCROLLBUTTONS
 863 };
 864
 865 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 866 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 867
 868 // values for scrollbar gadgets
 869 enum
 870 {
 871   ED_SCROLLBAR_ID_AREA_HORIZONTAL,
 872   ED_SCROLLBAR_ID_AREA_VERTICAL,
 873   ED_SCROLLBAR_ID_LIST_VERTICAL,
 874
 875   ED_NUM_SCROLLBARS
 876 };
 877
 878 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 879 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 880
 881 // values for text input gadgets
 882 enum
 883 {
 884   ED_TEXTINPUT_ID_LEVEL_NAME,
 885   ED_TEXTINPUT_ID_LEVEL_AUTHOR,
 886   ED_TEXTINPUT_ID_LEVELSET_NAME,
 887   ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
 888   ED_TEXTINPUT_ID_ELEMENT_NAME,
 889
 890   ED_NUM_TEXTINPUT
 891 };
 892
 893 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 894 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 895
 896 #define ED_TEXTINPUT_ID_LEVELSET_FIRST  ED_TEXTINPUT_ID_LEVELSET_NAME
 897 #define ED_TEXTINPUT_ID_LEVELSET_LAST   ED_TEXTINPUT_ID_LEVELSET_AUTHOR
 898
 899 // values for text area gadgets
 900 enum
 901 {
 902   ED_TEXTAREA_ID_ENVELOPE_INFO,
 903
 904   ED_NUM_TEXTAREAS
 905 };
 906
 907 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 908 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 909
 910 // values for selectbox gadgets
 911 enum
 912 {
 913   ED_SELECTBOX_ID_TIME_OR_STEPS,
 914   ED_SELECTBOX_ID_TIME_SCORE_BASE,
 915   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
 916   ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
 917   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
 918   ED_SELECTBOX_ID_WIND_DIRECTION,
 919   ED_SELECTBOX_ID_PLAYER_SPEED,
 920   ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
 921   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
 922   ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
 923   ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
 924   ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
 925   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
 926   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
 927   ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
 928   ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
 929   ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
 930   ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
 931   ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
 932   ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
 933   ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
 934   ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
 935   ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
 936   ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
 937   ED_SELECTBOX_ID_CHANGE_SIDE,
 938   ED_SELECTBOX_ID_CHANGE_PLAYER,
 939   ED_SELECTBOX_ID_CHANGE_PAGE,
 940   ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
 941   ED_SELECTBOX_ID_ACTION_TYPE,
 942   ED_SELECTBOX_ID_ACTION_MODE,
 943   ED_SELECTBOX_ID_ACTION_ARG,
 944   ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
 945   ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
 946
 947   ED_NUM_SELECTBOX
 948 };
 949
 950 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 951 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 952
 953 #define ED_SELECTBOX_ID_LEVELSET_FIRST  ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 954 #define ED_SELECTBOX_ID_LEVELSET_LAST   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 955
 956 #define ED_SELECTBOX_ID_ENGINE_FIRST    ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 957 #define ED_SELECTBOX_ID_ENGINE_LAST     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 958
 959 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 960 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 961 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 962 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 963 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 964 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 965
 966 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 967 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 968
 969 // values for textbutton gadgets
 970 enum
 971 {
 972   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
 973   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
 974   ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
 975   ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
 976   ED_TEXTBUTTON_ID_PROPERTIES_INFO,
 977   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
 978   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
 979   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
 980   ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
 981   ED_TEXTBUTTON_ID_SAVE_LEVELSET,
 982   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
 983   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
 984   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
 985   ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
 986
 987   ED_NUM_TEXTBUTTONS
 988 };
 989
 990 #define ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
 991 #define ED_TAB_BUTTON_ID_LEVELCONFIG_LAST  ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
 992
 993 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
 994 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 995
 996 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
 997 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
 998
 999 // values for graphicbutton gadgets
1000 enum
1001 {
1002   ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
1003   ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
1004   ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
1005   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
1006
1007   ED_NUM_GRAPHICBUTTONS
1008 };
1009
1010 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
1011 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
1012
1013 // values for checkbutton gadgets
1014 enum
1015 {
1016   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
1017   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
1018   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
1019   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
1020   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
1021   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
1022   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
1023   ED_CHECKBUTTON_ID_BD_INTERMISSION,
1024   ED_CHECKBUTTON_ID_BD_PAL_TIMING,
1025   ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
1026   ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
1027   ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
1028   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
1029   ED_CHECKBUTTON_ID_STICK_ELEMENT,
1030   ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
1031   ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
1032   ED_CHECKBUTTON_ID_USE_SPRING_BUG,
1033   ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
1034   ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
1035   ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
1036   ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
1037   ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
1038   ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
1039   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
1040   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
1041   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
1042   ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
1043   ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
1044   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
1045   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
1046   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
1047   ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
1048   ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
1049   ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
1050   ED_CHECKBUTTON_ID_LAZY_RELOCATION,
1051   ED_CHECKBUTTON_ID_USE_START_ELEMENT,
1052   ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
1053   ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
1054   ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
1055   ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
1056   ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
1057   ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
1058   ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
1059   ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
1060   ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
1061   ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
1062   ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
1063   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
1064   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
1065   ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
1066   ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
1067   ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
1068   ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
1069   ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
1070   ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
1071   ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
1072   ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE,
1073   ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
1074   ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
1075   ED_CHECKBUTTON_ID_MM_LASER_RED,
1076   ED_CHECKBUTTON_ID_MM_LASER_GREEN,
1077   ED_CHECKBUTTON_ID_MM_LASER_BLUE,
1078   ED_CHECKBUTTON_ID_DF_LASER_RED,
1079   ED_CHECKBUTTON_ID_DF_LASER_GREEN,
1080   ED_CHECKBUTTON_ID_DF_LASER_BLUE,
1081   ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
1082   ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
1083   ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
1084   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
1085   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
1086   ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
1087   ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
1088   ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
1089   ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
1090   ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
1091   ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
1092   ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
1093   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
1094   ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
1095   ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
1096   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
1097   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
1098   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
1099   ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
1100   ED_CHECKBUTTON_ID_CHANGE_DELAY,
1101   ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
1102   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
1103   ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
1104   ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
1105   ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
1106   ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
1107   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
1108
1109   ED_NUM_CHECKBUTTONS
1110 };
1111
1112 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
1113 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
1114
1115 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
1116 #define ED_CHECKBUTTON_ID_LEVELSET_LAST  ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
1117
1118 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
1119 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
1120
1121 #define ED_CHECKBUTTON_ID_ENGINE_FIRST  ED_CHECKBUTTON_ID_BD_INTERMISSION
1122 #define ED_CHECKBUTTON_ID_ENGINE_LAST   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL
1123
1124 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
1125 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
1126 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
1127 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
1128 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
1129 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
1130
1131 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
1132 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
1133
1134 // values for radiobutton gadgets
1135 enum
1136 {
1137   ED_RADIOBUTTON_ID_PERCENTAGE,
1138   ED_RADIOBUTTON_ID_QUANTITY,
1139
1140   ED_NUM_RADIOBUTTONS
1141 };
1142
1143 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
1144 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
1145
1146 // values for drawing area gadgets
1147 enum
1148 {
1149   ED_DRAWING_ID_DRAWING_LEVEL,
1150   ED_DRAWING_ID_YAMYAM_CONTENT_0,
1151   ED_DRAWING_ID_YAMYAM_CONTENT_1,
1152   ED_DRAWING_ID_YAMYAM_CONTENT_2,
1153   ED_DRAWING_ID_YAMYAM_CONTENT_3,
1154   ED_DRAWING_ID_YAMYAM_CONTENT_4,
1155   ED_DRAWING_ID_YAMYAM_CONTENT_5,
1156   ED_DRAWING_ID_YAMYAM_CONTENT_6,
1157   ED_DRAWING_ID_YAMYAM_CONTENT_7,
1158   ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
1159   ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
1160   ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
1161   ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
1162   ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
1163   ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
1164   ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
1165   ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
1166   ED_DRAWING_ID_ANDROID_CONTENT,
1167   ED_DRAWING_ID_AMOEBA_CONTENT,
1168   ED_DRAWING_ID_BD_SNAP_ELEMENT,
1169   ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
1170   ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
1171   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
1172   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
1173   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
1174   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
1175   ED_DRAWING_ID_START_ELEMENT,
1176   ED_DRAWING_ID_ARTWORK_ELEMENT,
1177   ED_DRAWING_ID_EXPLOSION_ELEMENT,
1178   ED_DRAWING_ID_INVENTORY_CONTENT,
1179   ED_DRAWING_ID_MM_BALL_CONTENT,
1180   ED_DRAWING_ID_CUSTOM_GRAPHIC,
1181   ED_DRAWING_ID_CUSTOM_CONTENT,
1182   ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
1183   ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
1184   ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
1185   ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
1186   ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
1187   ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
1188   ED_DRAWING_ID_GROUP_CONTENT,
1189   ED_DRAWING_ID_RANDOM_BACKGROUND,
1190
1191   ED_NUM_DRAWING_AREAS
1192 };
1193
1194 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
1195 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
1196
1197
1198 // ----------------------------------------------------------------------------
1199 // some internally used definitions
1200 // ----------------------------------------------------------------------------
1201
1202 // values for CopyLevelToUndoBuffer()
1203 #define UNDO_IMMEDIATE                  0
1204 #define UNDO_ACCUMULATE                 1
1205
1206 // values for scrollbars
1207 #define ED_SCROLL_NO                    0
1208 #define ED_SCROLL_LEFT                  1
1209 #define ED_SCROLL_RIGHT                 2
1210 #define ED_SCROLL_UP                    4
1211 #define ED_SCROLL_DOWN                  8
1212
1213 // screens in the level editor
1214 #define ED_MODE_DRAWING                 0
1215 #define ED_MODE_LEVELCONFIG             1
1216 #define ED_MODE_PROPERTIES              2
1217 #define ED_MODE_PALETTE                 3
1218
1219 // sub-screens in the global settings section
1220 #define ED_MODE_LEVELCONFIG_LEVEL       ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
1221 #define ED_MODE_LEVELCONFIG_LEVELSET    ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET
1222 #define ED_MODE_LEVELCONFIG_EDITOR      ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR
1223 #define ED_MODE_LEVELCONFIG_ENGINE      ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
1224
1225 // sub-screens in the element properties section
1226 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1227 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1228 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1229 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1230 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1231
1232 // how many steps can be cancelled
1233 #define NUM_UNDO_STEPS                  (64 + 1)
1234
1235 // values for elements with score for certain actions
1236 #define MIN_SCORE                       0
1237 #define MAX_SCORE                       999
1238
1239 // values for elements with count for collecting
1240 #define MIN_COLLECT_COUNT               0
1241 #define MAX_COLLECT_COUNT               999
1242
1243 // values for random placement
1244 #define RANDOM_USE_PERCENTAGE           0
1245 #define RANDOM_USE_QUANTITY             1
1246
1247 // values for level set save mode
1248 #define LEVELSET_SAVE_MODE_UPDATE       0
1249 #define LEVELSET_SAVE_MODE_CREATE       1
1250
1251 // default value for element tile size in drawing area
1252 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1253 #define DEFAULT_EDITOR_TILESIZE_MM      TILESIZE
1254
1255
1256 // ----------------------------------------------------------------------------
1257 // some internally used data structure definitions
1258 // ----------------------------------------------------------------------------
1259
1260 static struct
1261 {
1262   int graphic;
1263   int gadget_id;
1264   struct XYTileSize *pos;
1265   int gadget_type;
1266   char *infotext;
1267   char shortcut;
1268 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1269 {
1270   // note: some additional characters are already reserved for "cheat mode"
1271   // shortcuts (":XYZ" style) -- for details, see "events.c"
1272
1273   // ---------- toolbox control buttons ---------------------------------------
1274
1275   {
1276     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1277     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1278     "draw single items",                        's'
1279   },
1280   {
1281     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1282     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1283     "draw connected items",                     'd'
1284   },
1285   {
1286     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1287     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1288     "draw lines",                               'l'
1289   },
1290   {
1291     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1292     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1293     "draw arcs",                                'a'
1294   },
1295   {
1296     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1297     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1298     "draw outline rectangles",                  'r'
1299   },
1300   {
1301     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1302     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1303     "draw filled rectangles",                   'R'
1304   },
1305   {
1306     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1307     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1308     "wrap (rotate) level up",                   0
1309   },
1310   {
1311     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1312     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1313     "enter text elements",                      't'
1314   },
1315   {
1316     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1317     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1318     "flood fill",                               'f'
1319   },
1320   {
1321     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1322     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1323     "wrap (rotate) level left",                 0
1324   },
1325   {
1326     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1327     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1328     "zoom level tile size",                     '+'
1329   },
1330   {
1331     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1332     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1333     "wrap (rotate) level right",                0
1334   },
1335   {
1336     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1337     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1338     "random element placement",                 0
1339   },
1340   {
1341     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1342     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1343     "grab brush",                               'b'
1344   },
1345   {
1346     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1347     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1348     "wrap (rotate) level down",                 0
1349   },
1350   {
1351     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1352     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1353     "pick drawing element",                     ','
1354   },
1355
1356   // ---------- level control buttons -----------------------------------------
1357
1358   {
1359     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1360     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1361     "undo/redo last operation",                 'u'
1362   },
1363   {
1364     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_CONF,
1365     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1366     "level and editor settings",                'I'
1367   },
1368   {
1369     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1370     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1371     "save level",                               'S'
1372   },
1373   {
1374     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1375     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1376     "clear level",                              'C'
1377   },
1378   {
1379     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1380     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1381     "test level",                               'T'
1382   },
1383   {
1384     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1385     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1386     "exit level editor",                        'E'
1387   },
1388
1389   // ---------- CE and GE control buttons -------------------------------------
1390
1391   {
1392     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1393     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1394     "copy settings from other element",         0
1395   },
1396   {
1397     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1398     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1399     "copy settings to other element",           0
1400   },
1401   {
1402     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1403     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1404     "exchange element with other element",      0
1405   },
1406   {
1407     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1408     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1409     "copy settings from this element",          0
1410   },
1411   {
1412     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1413     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1414     "paste settings to this element",           0
1415   },
1416
1417   // ---------- palette control buttons ---------------------------------------
1418
1419   {
1420     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1421     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1422     "properties of drawing element",            'p'
1423   },
1424   {
1425     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1426     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1427     "properties of drawing element 1",          '1'
1428   },
1429   {
1430     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1431     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1432     "properties of drawing element 2",          '2'
1433   },
1434   {
1435     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1436     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1437     "properties of drawing element 3",          '3'
1438   },
1439   {
1440     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1441     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1442     "show list of elements",                    'e'
1443   }
1444 };
1445
1446 static int random_placement_value = 10;
1447 static int random_placement_method = RANDOM_USE_QUANTITY;
1448 static int random_placement_background_element = EL_SAND;
1449 static boolean random_placement_background_restricted = FALSE;
1450 static boolean stick_element_properties_window = FALSE;
1451 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1452 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1453 static struct ElementChangeInfo custom_element_change;
1454 static struct ElementGroupInfo group_element_info;
1455 static struct ElementInfo custom_element;
1456
1457 static char levelset_name[MAX_LEVEL_NAME_LEN + 1];
1458 static char levelset_author[MAX_LEVEL_AUTHOR_LEN + 1];
1459 static int levelset_num_levels = 100;
1460 static boolean levelset_use_levelset_artwork = FALSE;
1461 static boolean levelset_copy_level_template = FALSE;
1462 static int levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
1463
1464 static struct
1465 {
1466   int gadget_type_id;
1467   int x, y;
1468   int min_value, max_value;
1469   int gadget_id_down, gadget_id_up;
1470   int gadget_id_text;
1471   int gadget_id_align;
1472   int *value;
1473   char *text_above, *text_left, *text_right;
1474 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1475 {
1476   // ---------- current level number ------------------------------------------
1477
1478   {
1479     ED_COUNTER_ID_SELECT_LEVEL,
1480     -1, -1,     // these values are not constant, but can change at runtime
1481     1,                                  100,
1482     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1483     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1484     &level_nr,
1485     NULL,                               NULL, NULL
1486   },
1487
1488   // ---------- level and editor settings -------------------------------------
1489
1490   {
1491     ED_COUNTER_ID_LEVEL_XSIZE,
1492     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1493     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1494     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1495     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1496     &level.fieldx,
1497     "playfield size:",                  NULL, "width",
1498   },
1499   {
1500     ED_COUNTER_ID_LEVEL_YSIZE,
1501     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1502     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1503     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1504     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1505     &level.fieldy,
1506     NULL,                               " ", "height",
1507   },
1508   {
1509     ED_COUNTER_ID_LEVEL_GEMSLIMIT,
1510     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1511     0,                                  999,
1512     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1513     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1514     &level.gems_needed,
1515     NULL,                               "number of gems to collect:", NULL
1516   },
1517   {
1518     ED_COUNTER_ID_LEVEL_TIMELIMIT,
1519     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
1520     0,                                  9999,
1521     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1522     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1523     &level.time,
1524     "time or step limit to solve level:", NULL, NULL
1525   },
1526   {
1527     ED_COUNTER_ID_LEVEL_TIMESCORE,
1528     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
1529     0,                                  999,
1530     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1531     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1532     &level.score[SC_TIME_BONUS],
1533     "score for time or steps left:",    NULL, NULL
1534   },
1535   {
1536     ED_COUNTER_ID_LEVEL_RANDOM_SEED,
1537     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(13),
1538     0,                                  9999,
1539     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1540     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1541     &level.random_seed,
1542     NULL,                               "random seed:", "(0 => random)"
1543   },
1544   {
1545     ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
1546     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1547     1,                                  MAX_LEVELS,
1548     GADGET_ID_LEVELSET_NUM_LEVELS_DOWN, GADGET_ID_LEVELSET_NUM_LEVELS_UP,
1549     GADGET_ID_LEVELSET_NUM_LEVELS_TEXT, GADGET_ID_NONE,
1550     &levelset_num_levels,
1551     "number of levels:",                NULL, NULL,
1552   },
1553   {
1554     ED_COUNTER_ID_LEVEL_RANDOM,
1555     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1556     1,                                  100,
1557     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1558     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1559     &random_placement_value,
1560     "random element placement:",        NULL, "in"
1561   },
1562   {
1563     ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
1564     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1565     50,                                 500,
1566     GADGET_ID_BD_CYCLE_DELAY_MS_DOWN,   GADGET_ID_BD_CYCLE_DELAY_MS_UP,
1567     GADGET_ID_BD_CYCLE_DELAY_MS_TEXT,   GADGET_ID_NONE,
1568     &level.bd_cycle_delay_ms,
1569     NULL,                               NULL, "game cycle delay (ms)"
1570   },
1571   {
1572     ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
1573     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1574     0,                                  32,
1575     GADGET_ID_BD_CYCLE_DELAY_C64_DOWN,  GADGET_ID_BD_CYCLE_DELAY_C64_UP,
1576     GADGET_ID_BD_CYCLE_DELAY_C64_TEXT,  GADGET_ID_NONE,
1577     &level.bd_cycle_delay_c64,
1578     NULL,                               NULL, "game cycle delay (C64-style)"
1579   },
1580   {
1581     ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
1582     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1583     1,                                  40,
1584     GADGET_ID_BD_HATCHING_DELAY_CYCLES_DOWN,    GADGET_ID_BD_HATCHING_DELAY_CYCLES_UP,
1585     GADGET_ID_BD_HATCHING_DELAY_CYCLES_TEXT,    GADGET_ID_NONE,
1586     &level.bd_hatching_delay_cycles,
1587     NULL,                               NULL, "hatching delay (cycles)"
1588   },
1589   {
1590     ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
1591     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1592     1,                                  40,
1593     GADGET_ID_BD_HATCHING_DELAY_SECONDS_DOWN,   GADGET_ID_BD_HATCHING_DELAY_SECONDS_UP,
1594     GADGET_ID_BD_HATCHING_DELAY_SECONDS_TEXT,   GADGET_ID_NONE,
1595     &level.bd_hatching_delay_seconds,
1596     NULL,                               NULL, "hatching delay (seconds)"
1597   },
1598
1599   // ---------- element settings: configure (various elements) ----------------
1600
1601   {
1602     ED_COUNTER_ID_BD_PUSHING_PROB,
1603     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1604     0,                                  100,
1605     GADGET_ID_BD_PUSHING_PROB_DOWN,     GADGET_ID_BD_PUSHING_PROB_UP,
1606     GADGET_ID_BD_PUSHING_PROB_TEXT,     GADGET_ID_NONE,
1607     &level.bd_pushing_prob,
1608     NULL,                               NULL, "push probability"
1609   },
1610   {
1611     ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
1612     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1613     0,                                  100,
1614     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_DOWN,  GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_UP,
1615     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_TEXT,  GADGET_ID_NONE,
1616     &level.bd_pushing_prob_with_sweet,
1617     NULL,                               NULL, "push probability with sweet"
1618   },
1619   {
1620     ED_COUNTER_ID_ELEMENT_VALUE1,
1621     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1622     MIN_SCORE,                          MAX_SCORE,
1623     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1624     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1625     NULL,                               // will be set when used
1626     NULL,                               NULL, NULL
1627   },
1628   {
1629     ED_COUNTER_ID_ELEMENT_VALUE2,
1630     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1631     MIN_SCORE,                          MAX_SCORE,
1632     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1633     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1634     NULL,                               // will be set when used
1635     NULL,                               NULL, NULL
1636   },
1637   {
1638     ED_COUNTER_ID_ELEMENT_VALUE3,
1639     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1640     MIN_SCORE,                          MAX_SCORE,
1641     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1642     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1643     NULL,                               // will be set when used
1644     NULL,                               NULL, NULL
1645   },
1646   {
1647     ED_COUNTER_ID_ELEMENT_VALUE4,
1648     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1649     MIN_SCORE,                          MAX_SCORE,
1650     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1651     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1652     NULL,                               // will be set when used
1653     NULL,                               NULL, NULL
1654   },
1655   {
1656     ED_COUNTER_ID_YAMYAM_CONTENT,
1657     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1658     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1659     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1660     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1661     &level.num_yamyam_contents,
1662     NULL,                               NULL, "number of content areas"
1663   },
1664   {
1665     ED_COUNTER_ID_BALL_CONTENT,
1666     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1667     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1668     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1669     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1670     &level.num_ball_contents,
1671     NULL,                               NULL, "number of content areas"
1672   },
1673   {
1674     ED_COUNTER_ID_ANDROID_CONTENT,
1675     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1676     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1677     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1678     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1679     &level.num_android_clone_elements,
1680     NULL,                               NULL, "number of clonable elements"
1681   },
1682   {
1683     ED_COUNTER_ID_ENVELOPE_XSIZE,
1684     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1685     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1686     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1687     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1688     NULL,                               // will be set when used
1689     NULL,                               NULL, "width",
1690   },
1691   {
1692     ED_COUNTER_ID_ENVELOPE_YSIZE,
1693     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1694     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1695     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1696     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1697     NULL,                               // will be set when used
1698     NULL,                               " ", "height",
1699   },
1700   {
1701     ED_COUNTER_ID_INVENTORY_SIZE,
1702     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1703     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1704     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1705     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1706     &level.initial_inventory_size[0],
1707     NULL,                               NULL, "number of inventory elements"
1708   },
1709   {
1710     ED_COUNTER_ID_MM_BALL_CONTENT,
1711     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1712     MIN_ELEMENTS_IN_GROUP,              MAX_MM_BALL_CONTENTS,
1713     GADGET_ID_MM_BALL_CONTENT_DOWN,     GADGET_ID_MM_BALL_CONTENT_UP,
1714     GADGET_ID_MM_BALL_CONTENT_TEXT,     GADGET_ID_NONE,
1715     &level.num_mm_ball_contents,
1716     NULL,                               NULL, "number of content elements"
1717   },
1718
1719   // ---------- element settings: configure 1 (custom elements) ---------------
1720
1721   {
1722     ED_COUNTER_ID_CUSTOM_SCORE,
1723     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1724     MIN_SCORE,                          MAX_SCORE,
1725     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1726     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1727     &custom_element.collect_score_initial,
1728     NULL,                               "CE score", " "
1729   },
1730   {
1731     ED_COUNTER_ID_CUSTOM_GEMCOUNT,
1732     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1733     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1734     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1735     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1736     &custom_element.collect_count_initial,
1737     NULL,                               "CE count", NULL
1738   },
1739   {
1740     ED_COUNTER_ID_CUSTOM_VALUE_FIX,
1741     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1742     0,                                  9999,
1743     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1744     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1745     &custom_element.ce_value_fixed_initial,
1746     NULL,                               "CE value", NULL
1747   },
1748   {
1749     ED_COUNTER_ID_CUSTOM_VALUE_RND,
1750     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1751     0,                                  9999,
1752     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1753     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1754     &custom_element.ce_value_random_initial,
1755     NULL,                               "+random", NULL
1756   },
1757   {
1758     ED_COUNTER_ID_PUSH_DELAY_FIX,
1759     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1760     0,                                  999,
1761     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1762     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1763     &custom_element.push_delay_fixed,
1764     NULL,                               "push delay", NULL
1765   },
1766   {
1767     ED_COUNTER_ID_PUSH_DELAY_RND,
1768     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1769     0,                                  999,
1770     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1771     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1772     &custom_element.push_delay_random,
1773     NULL,                               "+random", NULL
1774   },
1775   {
1776     ED_COUNTER_ID_DROP_DELAY_FIX,
1777     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1778     0,                                  999,
1779     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1780     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1781     &custom_element.drop_delay_fixed,
1782     NULL,                               "drop delay", NULL
1783   },
1784   {
1785     ED_COUNTER_ID_DROP_DELAY_RND,
1786     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1787     0,                                  999,
1788     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1789     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1790     &custom_element.drop_delay_random,
1791     NULL,                               "+random", NULL
1792   },
1793
1794   // ---------- element settings: configure 2 (custom elements) ---------------
1795
1796   {
1797     ED_COUNTER_ID_MOVE_DELAY_FIX,
1798     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1799     0,                                  999,
1800     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1801     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1802     &custom_element.move_delay_fixed,
1803     NULL,                               "move delay", NULL
1804   },
1805   {
1806     ED_COUNTER_ID_MOVE_DELAY_RND,
1807     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1808     0,                                  999,
1809     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1810     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1811     &custom_element.move_delay_random,
1812     NULL,                               "+random", NULL
1813   },
1814   {
1815     ED_COUNTER_ID_STEP_DELAY_FIX,
1816     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1817     0,                                  999,
1818     GADGET_ID_STEP_DELAY_FIX_DOWN,      GADGET_ID_STEP_DELAY_FIX_UP,
1819     GADGET_ID_STEP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1820     &custom_element.step_delay_fixed,
1821     NULL,                               "step delay", NULL
1822   },
1823   {
1824     ED_COUNTER_ID_STEP_DELAY_RND,
1825     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1826     0,                                  999,
1827     GADGET_ID_STEP_DELAY_RND_DOWN,      GADGET_ID_STEP_DELAY_RND_UP,
1828     GADGET_ID_STEP_DELAY_RND_TEXT,      GADGET_ID_STEP_DELAY_FIX_UP,
1829     &custom_element.step_delay_random,
1830     NULL,                               "+random", NULL
1831   },
1832   {
1833     ED_COUNTER_ID_EXPLOSION_DELAY,
1834     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1835     0,                                  999,
1836     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1837     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1838     &custom_element.explosion_delay,
1839     NULL,                               "explosion delay", NULL
1840   },
1841   {
1842     ED_COUNTER_ID_IGNITION_DELAY,
1843     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
1844     0,                                  999,
1845     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1846     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1847     &custom_element.ignition_delay,
1848     NULL,                               "ignition delay", "(by fire)"
1849   },
1850
1851   // ---------- element settings: configure (group elements) ------------------
1852
1853   {
1854     ED_COUNTER_ID_GROUP_CONTENT,
1855     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1856     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1857     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1858     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1859     &group_element_info.num_elements,
1860     NULL,                               NULL, "number of elements in group"
1861   },
1862
1863   // ---------- element settings: advanced (custom elements) ------------------
1864
1865   {
1866     ED_COUNTER_ID_CHANGE_DELAY_FIX,
1867     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1868     0,                                  999,
1869     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1870     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1871     &custom_element_change.delay_fixed,
1872     NULL,                               "CE delay", NULL,
1873   },
1874   {
1875     ED_COUNTER_ID_CHANGE_DELAY_RND,
1876     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1877     0,                                  999,
1878     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1879     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1880     &custom_element_change.delay_random,
1881     NULL,                               "+random", NULL
1882   },
1883   {
1884     ED_COUNTER_ID_CHANGE_CONT_RND,
1885     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1886     0,                                  100,
1887     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1888     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1889     &custom_element_change.random_percentage,
1890     NULL,                               "use random replace:", "%"
1891   },
1892 };
1893
1894 static struct
1895 {
1896   int gadget_type_id;
1897   int x, y;
1898   int gadget_id;
1899   int size;
1900   char *value;
1901   char *text_above, *infotext;
1902 } textinput_info[ED_NUM_TEXTINPUT] =
1903 {
1904   {
1905     ED_TEXTINPUT_ID_LEVEL_NAME,
1906     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1907     GADGET_ID_LEVEL_NAME,
1908     MAX_LEVEL_NAME_LEN,
1909     level.name,
1910     "Title:", "Title for this level"
1911   },
1912   {
1913     ED_TEXTINPUT_ID_LEVEL_AUTHOR,
1914     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1915     GADGET_ID_LEVEL_AUTHOR,
1916     MAX_LEVEL_AUTHOR_LEN,
1917     level.author,
1918     "Author:", "Author for this level"
1919   },
1920   {
1921     ED_TEXTINPUT_ID_LEVELSET_NAME,
1922     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1923     GADGET_ID_LEVELSET_NAME,
1924     MAX_LEVEL_NAME_LEN,
1925     levelset_name,
1926     "Title:", "Title for this or new level set"
1927   },
1928   {
1929     ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
1930     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1931     GADGET_ID_LEVELSET_AUTHOR,
1932     MAX_LEVEL_AUTHOR_LEN,
1933     levelset_author,
1934     "Author:", "Author for this or new level set"
1935   },
1936   {
1937     ED_TEXTINPUT_ID_ELEMENT_NAME,
1938     -1, -1,     // these values are not constant, but can change at runtime
1939     GADGET_ID_ELEMENT_NAME,
1940     MAX_ELEMENT_NAME_LEN - 2,           // currently 2 chars less editable
1941     custom_element.description,
1942     NULL, "Element name"
1943   }
1944 };
1945
1946 static struct
1947 {
1948   int gadget_type_id;
1949   int x, y;
1950   int gadget_id;
1951   int xsize, ysize;
1952   char *value;
1953   char *text_above, *text_above_cropped, *infotext;
1954 } textarea_info[ED_NUM_TEXTAREAS] =
1955 {
1956   {
1957     ED_TEXTAREA_ID_ENVELOPE_INFO,
1958     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1959     GADGET_ID_ENVELOPE_INFO,
1960     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1961     NULL,
1962     "Envelope Content:", "Envelope Content (cropped):", "Envelope Content"
1963   }
1964 };
1965
1966 static struct ValueTextInfo options_time_or_steps[] =
1967 {
1968   { 0,                          "seconds"                       },
1969   { 1,                          "steps"                         },
1970
1971   { -1,                         NULL                            }
1972 };
1973
1974 static struct ValueTextInfo options_time_score_base[] =
1975 {
1976   { 1,                          "per second/step"               },
1977   { 10,                         "per 10 seconds/steps"          },
1978
1979   { -1,                         NULL                            }
1980 };
1981
1982 static struct ValueTextInfo options_game_engine_type[] =
1983 {
1984   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
1985   { GAME_ENGINE_TYPE_BD,        "Boulder Dash"                  },
1986   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
1987   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
1988   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
1989
1990   { -1,                         NULL                            }
1991 };
1992
1993 static struct ValueTextInfo options_levelset_save_mode[] =
1994 {
1995   { LEVELSET_SAVE_MODE_UPDATE,  "Update this level set"         },
1996   { LEVELSET_SAVE_MODE_CREATE,  "Create new level set"          },
1997
1998   { -1,                         NULL                            }
1999 };
2000
2001 static struct ValueTextInfo options_wind_direction[] =
2002 {
2003   { MV_START_NONE,              "none"                          },
2004   { MV_START_LEFT,              "left"                          },
2005   { MV_START_RIGHT,             "right"                         },
2006   { MV_START_UP,                "up"                            },
2007   { MV_START_DOWN,              "down"                          },
2008
2009   { -1,                         NULL                            }
2010 };
2011
2012 static struct ValueTextInfo options_player_speed[] =
2013 {
2014   { 0,                          "frozen"                        },
2015   { 1,                          "very slow"                     },
2016   { 2,                          "slow"                          },
2017   { 4,                          "normal"                        },
2018   { 8,                          "fast"                          },
2019   { 16,                         "very fast"                     },
2020   { 32,                         "ultrafast"                     },
2021
2022   { -1,                         NULL                            }
2023 };
2024
2025 static struct ValueTextInfo options_access_type[] =
2026 {
2027   { EP_WALKABLE,                "walkable"                      },
2028   { EP_PASSABLE,                "passable"                      },
2029
2030   { -1,                         NULL                            }
2031 };
2032
2033 static struct ValueTextInfo options_access_layer[] =
2034 {
2035   { EP_ACCESSIBLE_OVER,         "over"                          },
2036   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
2037   { EP_ACCESSIBLE_UNDER,        "under"                         },
2038
2039   { -1,                         NULL                            }
2040 };
2041
2042 static struct ValueTextInfo options_access_protected[] =
2043 {
2044   { 0,                          "unprotected"                   },
2045   { 1,                          "protected"                     },
2046
2047   { -1,                         NULL                            }
2048 };
2049
2050 static struct ValueTextInfo options_access_direction[] =
2051 {
2052   { MV_NO_DIRECTION,            "no direction"                  },
2053   { MV_LEFT,                    "left"                          },
2054   { MV_RIGHT,                   "right"                         },
2055   { MV_UP,                      "up"                            },
2056   { MV_DOWN,                    "down"                          },
2057   { MV_LEFT  | MV_UP,           "left + up"                     },
2058   { MV_LEFT  | MV_DOWN,         "left + down"                   },
2059   { MV_RIGHT | MV_UP,           "right + up"                    },
2060   { MV_RIGHT | MV_DOWN,         "right + down"                  },
2061   { MV_HORIZONTAL,              "horizontal"                    },
2062   { MV_VERTICAL,                "vertical"                      },
2063   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
2064   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
2065   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
2066   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
2067   { MV_ALL_DIRECTIONS,          "all directions"                },
2068
2069   { -1,                         NULL                            }
2070 };
2071
2072 static struct ValueTextInfo options_walk_to_action[] =
2073 {
2074   { EP_DIGGABLE,                "diggable"                      },
2075   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
2076   { EP_DROPPABLE,               "collectible & droppable"       },
2077   { EP_THROWABLE,               "collectible & throwable"       },
2078   { EP_PUSHABLE,                "pushable"                      },
2079
2080   { -1,                         NULL                            }
2081 };
2082
2083 static struct ValueTextInfo options_move_pattern[] =
2084 {
2085   { MV_LEFT,                    "left"                          },
2086   { MV_RIGHT,                   "right"                         },
2087   { MV_UP,                      "up"                            },
2088   { MV_DOWN,                    "down"                          },
2089   { MV_HORIZONTAL,              "horizontal"                    },
2090   { MV_VERTICAL,                "vertical"                      },
2091   { MV_ALL_DIRECTIONS,          "all directions"                },
2092   { MV_WIND_DIRECTION,          "wind direction"                },
2093   { MV_TOWARDS_PLAYER,          "towards player"                },
2094   { MV_AWAY_FROM_PLAYER,        "away from player"              },
2095   { MV_ALONG_LEFT_SIDE,         "along left side"               },
2096   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
2097   { MV_TURNING_LEFT,            "turning left"                  },
2098   { MV_TURNING_RIGHT,           "turning right"                 },
2099   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
2100   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
2101   { MV_TURNING_RANDOM,          "turning random"                },
2102   { MV_MAZE_RUNNER,             "maze runner style"             },
2103   { MV_MAZE_HUNTER,             "maze hunter style"             },
2104   { MV_WHEN_PUSHED,             "when pushed"                   },
2105   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
2106
2107   { -1,                         NULL                            }
2108 };
2109
2110 static struct ValueTextInfo options_move_direction[] =
2111 {
2112   { MV_START_AUTOMATIC,         "automatic"                     },
2113   { MV_START_LEFT,              "left"                          },
2114   { MV_START_RIGHT,             "right"                         },
2115   { MV_START_UP,                "up"                            },
2116   { MV_START_DOWN,              "down"                          },
2117   { MV_START_RANDOM,            "random"                        },
2118   { MV_START_PREVIOUS,          "previous"                      },
2119
2120   { -1,                         NULL                            }
2121 };
2122
2123 static struct ValueTextInfo options_move_stepsize[] =
2124 {
2125   { 0,                          "not moving"                    },
2126   { 1,                          "very slow"                     },
2127   { 2,                          "slow"                          },
2128   { 4,                          "normal"                        },
2129   { 8,                          "fast"                          },
2130   { 16,                         "very fast"                     },
2131   { 32,                         "even faster"                   },
2132
2133   { -1,                         NULL                            }
2134 };
2135
2136 static struct ValueTextInfo options_move_leave_type[] =
2137 {
2138   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
2139   { LEAVE_TYPE_LIMITED,         "change it to"                  },
2140
2141   { -1,                         NULL                            }
2142 };
2143
2144 static struct ValueTextInfo options_smash_targets[] =
2145 {
2146   { EP_CAN_SMASH_PLAYER,        "player"                        },
2147 #if 0
2148   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
2149 #endif
2150   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
2151
2152   { -1,                         NULL                            }
2153 };
2154
2155 static struct ValueTextInfo options_slippery_type[] =
2156 {
2157   { SLIPPERY_ANY_RANDOM,        "random"                        },
2158   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
2159   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
2160   { SLIPPERY_ONLY_LEFT,         "only left"                     },
2161   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
2162
2163   { -1,                         NULL                            }
2164 };
2165
2166 static struct ValueTextInfo options_deadliness[] =
2167 {
2168   { EP_DONT_RUN_INTO,           "running into"                  },
2169   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
2170   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
2171   { EP_DONT_TOUCH,              "touching"                      },
2172
2173   { -1,                         NULL                            }
2174 };
2175
2176 static struct ValueTextInfo options_explosion_type[] =
2177 {
2178   { EXPLODES_3X3,               "3x3"                           },
2179   { EXPLODES_CROSS,             "3+3"                           },
2180   { EXPLODES_1X1,               "1x1"                           },
2181
2182   { -1,                         NULL                            }
2183 };
2184
2185 static struct ValueTextInfo options_time_units[] =
2186 {
2187   { 1,                          "frames"                        },
2188   { FRAMES_PER_SECOND,          "seconds"                       },
2189
2190   { -1,                         NULL                            }
2191 };
2192
2193 static struct ValueTextInfo options_change_direct_action[] =
2194 {
2195   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
2196   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
2197   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
2198   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
2199   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
2200   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
2201   { CE_LEFT_BY_PLAYER,          "left by player"                },
2202   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
2203   { CE_SWITCHED,                "switched"                      },
2204   { CE_HITTING_SOMETHING,       "hitting something"             },
2205   { CE_HIT_BY_SOMETHING,        "hit by something"              },
2206 #if 0
2207   { CE_BLOCKED,                 "blocked"                       },
2208 #endif
2209   { CE_IMPACT,                  "impact (on something)"         },
2210   { CE_SMASHED,                 "smashed (from above)"          },
2211 #if 0
2212   { CE_VALUE_CHANGES,           "CE value changes"              },
2213   { CE_SCORE_CHANGES,           "CE score changes"              },
2214 #endif
2215   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
2216   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
2217   { CE_UNDEFINED,               " "                             },
2218   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2219   { CE_CLICKED_BY_MOUSE,        "clicked by mouse"              },
2220   { CE_PRESSED_BY_MOUSE,        "pressed by mouse"              },
2221   { CE_UNDEFINED,               " "                             },
2222   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2223   { CE_NEXT_TO_PLAYER,          "next to player"                },
2224
2225   { -1,                         NULL                            }
2226 };
2227
2228 static struct ValueTextInfo options_change_other_action[] =
2229 {
2230   { CE_PLAYER_TOUCHES_X,        "player touches"                },
2231   { CE_PLAYER_PRESSES_X,        "player presses"                },
2232   { CE_PLAYER_SWITCHES_X,       "player switches"               },
2233   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
2234   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
2235   { CE_PLAYER_ENTERS_X,         "player enters"                 },
2236   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
2237   { CE_PLAYER_DIGS_X,           "player digs"                   },
2238   { CE_PLAYER_COLLECTS_X,       "player collects"               },
2239   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
2240   { CE_TOUCHING_X,              "touching"                      },
2241   { CE_HITTING_X,               "hitting"                       },
2242   { CE_DIGGING_X,               "digging"                       },
2243   { CE_HIT_BY_X,                "hit by"                        },
2244   { CE_SWITCH_OF_X,             "switch of"                     },
2245   { CE_CHANGE_OF_X,             "change by page of"             },
2246   { CE_EXPLOSION_OF_X,          "explosion of"                  },
2247   { CE_MOVE_OF_X,               "move of"                       },
2248   { CE_CREATION_OF_X,           "creation of"                   },
2249   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
2250   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
2251   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
2252   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
2253   { CE_UNDEFINED,               " "                             },
2254   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2255   { CE_MOUSE_CLICKED_ON_X,      "mouse clicked on"              },
2256   { CE_MOUSE_PRESSED_ON_X,      "mouse pressed on"              },
2257   { CE_UNDEFINED,               " "                             },
2258   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2259   { CE_PLAYER_NEXT_TO_X,        "player next to"                },
2260   { CE_NEXT_TO_X,               "next to"                       },
2261
2262   { -1,                         NULL                            }
2263 };
2264
2265 static struct ValueTextInfo options_change_trigger_side[] =
2266 {
2267   { CH_SIDE_LEFT,               "left"                          },
2268   { CH_SIDE_RIGHT,              "right"                         },
2269   { CH_SIDE_TOP,                "top"                           },
2270   { CH_SIDE_BOTTOM,             "bottom"                        },
2271   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
2272   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
2273   { CH_SIDE_ANY,                "any"                           },
2274
2275   { -1,                         NULL                            }
2276 };
2277
2278 static struct ValueTextInfo options_change_trigger_player[] =
2279 {
2280   { CH_PLAYER_1,                "1"                             },
2281   { CH_PLAYER_2,                "2"                             },
2282   { CH_PLAYER_3,                "3"                             },
2283   { CH_PLAYER_4,                "4"                             },
2284   { CH_PLAYER_ANY,              "any"                           },
2285
2286   { -1,                         NULL                            }
2287 };
2288
2289 static struct ValueTextInfo options_change_trigger_page[] =
2290 {
2291   { (1u << 0),                  "1"                             },
2292   { (1u << 1),                  "2"                             },
2293   { (1u << 2),                  "3"                             },
2294   { (1u << 3),                  "4"                             },
2295   { (1u << 4),                  "5"                             },
2296   { (1u << 5),                  "6"                             },
2297   { (1u << 6),                  "7"                             },
2298   { (1u << 7),                  "8"                             },
2299   { (1u << 8),                  "9"                             },
2300   { (1u << 9),                  "10"                            },
2301   { (1u << 10),                 "11"                            },
2302   { (1u << 11),                 "12"                            },
2303   { (1u << 12),                 "13"                            },
2304   { (1u << 13),                 "14"                            },
2305   { (1u << 14),                 "15"                            },
2306   { (1u << 15),                 "16"                            },
2307   { (1u << 16),                 "17"                            },
2308   { (1u << 17),                 "18"                            },
2309   { (1u << 18),                 "19"                            },
2310   { (1u << 19),                 "20"                            },
2311   { (1u << 20),                 "21"                            },
2312   { (1u << 21),                 "22"                            },
2313   { (1u << 22),                 "23"                            },
2314   { (1u << 23),                 "24"                            },
2315   { (1u << 24),                 "25"                            },
2316   { (1u << 25),                 "26"                            },
2317   { (1u << 26),                 "27"                            },
2318   { (1u << 27),                 "28"                            },
2319   { (1u << 28),                 "29"                            },
2320   { (1u << 29),                 "30"                            },
2321   { (1u << 30),                 "31"                            },
2322   { (1u << 31),                 "32"                            },
2323   { CH_PAGE_ANY,                "any"                           },
2324
2325   { -1,                         NULL                            }
2326 };
2327
2328 static struct ValueTextInfo options_change_replace_when[] =
2329 {
2330   { CP_WHEN_EMPTY,              "empty"                         },
2331   { CP_WHEN_WALKABLE,           "walkable"                      },
2332   { CP_WHEN_DIGGABLE,           "diggable"                      },
2333   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
2334   { CP_WHEN_REMOVABLE,          "removable"                     },
2335   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
2336
2337   { -1,                         NULL                            }
2338 };
2339
2340 static struct ValueTextInfo options_action_type[] =
2341 {
2342   { CA_NO_ACTION,               "no action"                     },
2343   { CA_UNDEFINED,               " "                             },
2344   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
2345   { CA_RESTART_LEVEL,           "restart level"                 },
2346   { CA_SHOW_ENVELOPE,           "show envelope"                 },
2347   { CA_SET_LEVEL_TIME,          "set time"                      },
2348   { CA_SET_LEVEL_SCORE,         "set score"                     },
2349   { CA_SET_LEVEL_GEMS,          "set gems"                      },
2350   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
2351   { CA_SET_LEVEL_RANDOM_SEED,   "set random seed"               },
2352   { CA_UNDEFINED,               " "                             },
2353   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
2354   { CA_MOVE_PLAYER,             "move player"                   },
2355   { CA_MOVE_PLAYER_NEW,         "move player new"               },
2356   { CA_EXIT_PLAYER,             "exit player"                   },
2357   { CA_KILL_PLAYER,             "kill player"                   },
2358   { CA_SET_PLAYER_KEYS,         "set keys"                      },
2359   { CA_SET_PLAYER_SPEED,        "set speed"                     },
2360   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
2361   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
2362   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
2363   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
2364   { CA_UNDEFINED,               " "                             },
2365   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
2366   { CA_SET_CE_VALUE,            "set CE value"                  },
2367   { CA_SET_CE_SCORE,            "set CE score"                  },
2368   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
2369   { CA_UNDEFINED,               " "                             },
2370   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
2371   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
2372
2373   { -1,                         NULL                            }
2374 };
2375
2376 static struct ValueTextInfo options_action_mode_none[] =
2377 {
2378   { CA_MODE_UNDEFINED,          " "                             },
2379
2380   { -1,                         NULL                            }
2381 };
2382
2383 static struct ValueTextInfo options_action_mode_assign[] =
2384 {
2385   { CA_MODE_SET,                "="                             },
2386
2387   { -1,                         NULL                            }
2388 };
2389
2390 static struct ValueTextInfo options_action_mode_add_remove[] =
2391 {
2392   { CA_MODE_ADD,                "+"                             },
2393   { CA_MODE_SUBTRACT,           "-"                             },
2394
2395   { -1,                         NULL                            }
2396 };
2397
2398 static struct ValueTextInfo options_action_mode_calculate[] =
2399 {
2400   { CA_MODE_SET,                "="                             },
2401   { CA_MODE_ADD,                "+"                             },
2402   { CA_MODE_SUBTRACT,           "-"                             },
2403   { CA_MODE_MULTIPLY,           "*"                             },
2404   { CA_MODE_DIVIDE,             "/"                             },
2405   { CA_MODE_MODULO,             "%"                             },
2406
2407   { -1,                         NULL                            }
2408 };
2409
2410 static struct ValueTextInfo options_action_arg_none[] =
2411 {
2412   { CA_ARG_UNDEFINED,           "         "                     },
2413
2414   { -1,                         NULL                            }
2415 };
2416
2417 static struct ValueTextInfo options_action_arg_player[] =
2418 {
2419   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2420   { CA_ARG_PLAYER_1,            "1"                             },
2421   { CA_ARG_PLAYER_2,            "2"                             },
2422   { CA_ARG_PLAYER_3,            "3"                             },
2423   { CA_ARG_PLAYER_4,            "4"                             },
2424   { CA_ARG_PLAYER_ANY,          "any"                           },
2425   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2426   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2427
2428   { -1,                         NULL                            }
2429 };
2430
2431 static struct ValueTextInfo options_action_arg_number[] =
2432 {
2433   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2434   { CA_ARG_0,                   "0"                             },
2435   { CA_ARG_1,                   "1"                             },
2436   { CA_ARG_2,                   "2"                             },
2437   { CA_ARG_3,                   "3"                             },
2438   { CA_ARG_4,                   "4"                             },
2439   { CA_ARG_5,                   "5"                             },
2440   { CA_ARG_10,                  "10"                            },
2441   { CA_ARG_100,                 "100"                           },
2442   { CA_ARG_1000,                "1000"                          },
2443   { CA_ARG_UNDEFINED,           " "                             },
2444   { CA_ARG_NUMBER_MIN,          "min"                           },
2445   { CA_ARG_NUMBER_MAX,          "max"                           },
2446   { CA_ARG_UNDEFINED,           " "                             },
2447   { CA_ARG_NUMBER_RESET,        "reset"                         },
2448   { CA_ARG_UNDEFINED,           " "                             },
2449   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2450   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2451   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2452   { CA_ARG_UNDEFINED,           " "                             },
2453   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2454   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2455   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2456   { CA_ARG_UNDEFINED,           " "                             },
2457   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2458   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2459   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2460   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2461   { CA_ARG_UNDEFINED,           " "                             },
2462   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2463   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2464   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2465   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2466
2467   { -1,                         NULL                            }
2468 };
2469
2470 static struct ValueTextInfo options_action_arg_value[] =
2471 {
2472   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2473   { CA_ARG_0,                   "0"                             },
2474   { CA_ARG_1,                   "1"                             },
2475   { CA_ARG_2,                   "2"                             },
2476   { CA_ARG_3,                   "3"                             },
2477   { CA_ARG_4,                   "4"                             },
2478   { CA_ARG_5,                   "5"                             },
2479   { CA_ARG_10,                  "10"                            },
2480   { CA_ARG_100,                 "100"                           },
2481   { CA_ARG_1000,                "1000"                          },
2482   { CA_ARG_UNDEFINED,           " "                             },
2483   { CA_ARG_NUMBER_MIN,          "min"                           },
2484   { CA_ARG_NUMBER_MAX,          "max"                           },
2485   { CA_ARG_UNDEFINED,           " "                             },
2486   { CA_ARG_NUMBER_RESET,        "reset"                         },
2487   { CA_ARG_UNDEFINED,           " "                             },
2488   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2489   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2490   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2491   { CA_ARG_UNDEFINED,           " "                             },
2492   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2493   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2494   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2495   { CA_ARG_UNDEFINED,           " "                             },
2496   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2497   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2498   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2499   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2500   { CA_ARG_UNDEFINED,           " "                             },
2501   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2502   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2503   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2504   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2505   { CA_ARG_UNDEFINED,           " "                             },
2506   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2507   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2508   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2509   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2510
2511   { -1,                         NULL                            }
2512 };
2513
2514 static struct ValueTextInfo options_action_arg_envelope[] =
2515 {
2516   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2517   { CA_ARG_1,                   "1"                             },
2518   { CA_ARG_2,                   "2"                             },
2519   { CA_ARG_3,                   "3"                             },
2520   { CA_ARG_4,                   "4"                             },
2521   { CA_ARG_UNDEFINED,           " "                             },
2522   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2523   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2524   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2525   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2526
2527   { -1,                         NULL                            }
2528 };
2529
2530 static struct ValueTextInfo options_action_arg_key[] =
2531 {
2532   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2533   { CA_ARG_1,                   "1"                             },
2534   { CA_ARG_2,                   "2"                             },
2535   { CA_ARG_3,                   "3"                             },
2536   { CA_ARG_4,                   "4"                             },
2537   { CA_ARG_5,                   "5"                             },
2538   { CA_ARG_6,                   "6"                             },
2539   { CA_ARG_7,                   "7"                             },
2540   { CA_ARG_8,                   "8"                             },
2541   { CA_ARG_UNDEFINED,           " "                             },
2542   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2543   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2544   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2545   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2546
2547   { -1,                         NULL                            }
2548 };
2549
2550 static struct ValueTextInfo options_action_arg_speed[] =
2551 {
2552   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2553   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2554   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2555   { CA_ARG_SPEED_SLOW,          "slow"                          },
2556   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2557   { CA_ARG_SPEED_FAST,          "fast"                          },
2558   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2559   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2560   { CA_ARG_UNDEFINED,           " "                             },
2561   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2562   { CA_ARG_SPEED_FASTER,        "faster"                        },
2563   { CA_ARG_UNDEFINED,           " "                             },
2564   { CA_ARG_SPEED_RESET,         "reset"                         },
2565
2566   { -1,                         NULL                            }
2567 };
2568
2569 static struct ValueTextInfo options_action_arg_shield[] =
2570 {
2571   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2572   { CA_ARG_SHIELD_OFF,          "off"                           },
2573   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2574   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2575
2576   { -1,                         NULL                            }
2577 };
2578
2579 static struct ValueTextInfo options_action_arg_artwork[] =
2580 {
2581   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2582   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2583   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2584   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2585   { CA_ARG_UNDEFINED,           " "                             },
2586   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2587
2588   { -1,                         NULL                            }
2589 };
2590
2591 static struct ValueTextInfo options_action_arg_gravity[] =
2592 {
2593   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2594   { CA_ARG_GRAVITY_ON,          "on"                            },
2595   { CA_ARG_GRAVITY_OFF,         "off"                           },
2596   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2597
2598   { -1,                         NULL                            }
2599 };
2600
2601 static struct ValueTextInfo options_action_arg_direction[] =
2602 {
2603   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2604   { CA_ARG_DIRECTION_NONE,      "none"                          },
2605   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2606   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2607   { CA_ARG_DIRECTION_UP,        "up"                            },
2608   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2609   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2610   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2611
2612   { -1,                         NULL                            }
2613 };
2614
2615 static struct ValueTextInfo options_action_arg_scan_mode[] =
2616 {
2617   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2618   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2619   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2620
2621   { -1,                         NULL                            }
2622 };
2623
2624 static struct ValueTextInfo options_action_arg_inventory[] =
2625 {
2626   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2627   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2628   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2629   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2630   { CA_ARG_UNDEFINED,           " "                             },
2631   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2632   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2633   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2634   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2635   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2636   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2637   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2638   { CA_ARG_UNDEFINED,           " "                             },
2639   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2640
2641   { -1,                         NULL                            }
2642 };
2643
2644 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2645 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2646 {
2647   { -1,                         NULL                            }
2648 };
2649
2650 static struct ValueTextInfo options_group_choice_mode[] =
2651 {
2652   { ANIM_RANDOM,                "random"                        },
2653   { ANIM_LOOP,                  "loop"                          },
2654   { ANIM_LINEAR,                "linear"                        },
2655   { ANIM_PINGPONG,              "pingpong"                      },
2656   { ANIM_PINGPONG2,             "pingpong 2"                    },
2657   { ANIM_LEVEL_NR,              "level number"                  },
2658
2659   { -1,                         NULL                            }
2660 };
2661
2662 static struct ValueTextInfo options_bd_scheduling_type[] =
2663 {
2664   { GD_SCHEDULING_MILLISECONDS,   "Milliseconds"                },
2665   { GD_SCHEDULING_BD1,            "BD1"                         },
2666   { GD_SCHEDULING_BD2,            "BD2"                         },
2667   { GD_SCHEDULING_PLCK,           "Construction Kit"            },
2668   { GD_SCHEDULING_CRDR,           "Crazy Dream 7"               },
2669   { GD_SCHEDULING_BD1_ATARI,      "Atari BD1"                   },
2670   { GD_SCHEDULING_BD2_PLCK_ATARI, "Atari BD2 / PLCK"            },
2671
2672   { -1,                           NULL                          }
2673 };
2674
2675 static struct ValueTextInfo *action_arg_modes[] =
2676 {
2677   options_action_mode_none,
2678   options_action_mode_assign,
2679   options_action_mode_add_remove,
2680   options_action_mode_calculate,
2681 };
2682
2683 static struct
2684 {
2685   int value;
2686   int mode;
2687   struct ValueTextInfo *options;
2688 }
2689 action_arg_options[] =
2690 {
2691   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2692   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2693   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2694   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2695   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2696   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2697   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2698   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2699   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2700   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2701   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2702   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2703   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2704   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2705   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2706   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2707   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2708   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2709   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2710   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2711   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2712   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2713
2714   { -1,                         FALSE,  NULL                            }
2715 };
2716
2717 static struct
2718 {
2719   int gadget_type_id;
2720   int x, y;
2721   int gadget_id;
2722   int gadget_id_align;
2723   int size;     // char size of selectbox or '-1' (dynamically determined)
2724   struct ValueTextInfo *options;
2725   int *value;
2726   char *text_above, *text_left, *text_right, *infotext;
2727 } selectbox_info[ED_NUM_SELECTBOX] =
2728 {
2729   // ---------- level and editor settings -------------------------------------
2730
2731   {
2732     ED_SELECTBOX_ID_TIME_OR_STEPS,
2733     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2734     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2735     -1,
2736     options_time_or_steps,
2737     &level.use_step_counter,
2738     NULL, NULL, "(0 => no limit)",      "time or step limit"
2739   },
2740   {
2741     ED_SELECTBOX_ID_TIME_SCORE_BASE,
2742     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2743     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2744     -1,
2745     options_time_score_base,
2746     &level.time_score_base,
2747     NULL, NULL, NULL,                   "time score for 1 or 10 seconds/steps"
2748   },
2749   {
2750     ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
2751     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2752     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2753     -1,
2754     options_game_engine_type,
2755     &level.game_engine_type,
2756     NULL, "game engine:", NULL,         "game engine"
2757   },
2758   {
2759     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
2760     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
2761     GADGET_ID_BD_SCHEDULING_TYPE,       GADGET_ID_NONE,
2762     -1,
2763     options_bd_scheduling_type,
2764     &level.bd_scheduling_type,
2765     NULL, "scheduling type:", NULL,     "level timing"
2766   },
2767   {
2768     ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
2769     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2770     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2771     -1,
2772     options_levelset_save_mode,
2773     &levelset_save_mode,
2774     "Action:", NULL, NULL,              "action when saving level set"
2775   },
2776
2777   // ---------- element settings: configure (several elements) ----------------
2778
2779   {
2780     ED_SELECTBOX_ID_WIND_DIRECTION,
2781     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2782     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2783     -1,
2784     options_wind_direction,
2785     &level.wind_direction_initial,
2786     NULL, "initial wind direction:", NULL,      "initial wind direction"
2787   },
2788   {
2789     ED_SELECTBOX_ID_PLAYER_SPEED,
2790     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2791     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2792     -1,
2793     options_player_speed,
2794     &level.initial_player_stepsize[0],
2795     NULL, "initial player speed:", NULL,        "initial player speed"
2796   },
2797   {
2798     ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
2799     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2800     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2801     -1,
2802     options_group_choice_mode,
2803     &level.mm_ball_choice_mode,
2804     NULL, "choice type:", NULL,         "type of content choice"
2805   },
2806
2807   // ---------- element settings: configure 1 (custom elements) ---------------
2808
2809   {
2810     ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
2811     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2812     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2813     -1,
2814     options_access_type,
2815     &custom_element.access_type,
2816     NULL, NULL, NULL,                   "type of access to this field"
2817   },
2818   {
2819     ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
2820     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2821     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2822     -1,
2823     options_access_layer,
2824     &custom_element.access_layer,
2825     NULL, NULL, NULL,                   "layer of access for this field"
2826   },
2827   {
2828     ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
2829     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2830     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2831     -1,
2832     options_access_protected,
2833     &custom_element.access_protected,
2834     NULL, NULL, NULL,                   "protected access for this field"
2835   },
2836   {
2837     ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
2838     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2839     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2840     -1,
2841     options_access_direction,
2842     &custom_element.access_direction,
2843     NULL, "from", NULL,                 "access direction for this field"
2844   },
2845   {
2846     ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
2847     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2848     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2849     -1,
2850     options_walk_to_action,
2851     &custom_element.walk_to_action,
2852     NULL, NULL, NULL,                   "diggable/collectible/pushable"
2853   },
2854
2855   // ---------- element settings: configure 2 (custom elements) ---------------
2856
2857   {
2858     ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
2859     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2860     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2861     -1,
2862     options_move_pattern,
2863     &custom_element.move_pattern,
2864     NULL, "can move", NULL,             "element move pattern"
2865   },
2866   {
2867     ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
2868     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2869     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2870     -1,
2871     options_move_direction,
2872     &custom_element.move_direction_initial,
2873     NULL, "starts moving", NULL,        "initial element move direction"
2874   },
2875   {
2876     ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
2877     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2878     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2879     -1,
2880     options_move_stepsize,
2881     &custom_element.move_stepsize,
2882     NULL, "move/fall speed", NULL,      "speed of element movement"
2883   },
2884   {
2885     ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
2886     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2887     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2888     -1,
2889     options_move_leave_type,
2890     &custom_element.move_leave_type,
2891     // left text with leading spaces to place gadget next to "can dig" gadget
2892     // (needed because drawing area gadgets created after selectbox gadgets)
2893     // NULL, "can dig:    can", ":",    "leave behind or change element"
2894     NULL, "            can", ":",       "leave behind or change element"
2895   },
2896   {
2897     ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
2898     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2899     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2900     -1,
2901     options_smash_targets,
2902     &custom_element.smash_targets,
2903     NULL, "can smash", NULL,            "elements that can be smashed"
2904   },
2905   {
2906     ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
2907     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2908     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2909     -1,
2910     options_slippery_type,
2911     &custom_element.slippery_type,
2912     NULL, "slippery", NULL,             "where other elements fall down"
2913   },
2914   {
2915     ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
2916     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2917     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2918     -1,
2919     options_deadliness,
2920     &custom_element.deadliness,
2921     NULL, "deadly when", NULL,          "deadliness of element"
2922   },
2923   {
2924     ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
2925     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2926     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2927     -1,
2928     options_explosion_type,
2929     &custom_element.explosion_type,
2930     NULL, "can explode", NULL,          "explosion type"
2931   },
2932
2933   // ---------- element settings: advanced (custom elements) ------------------
2934
2935   {
2936     ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
2937     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2938     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2939     -1,
2940     options_time_units,
2941     &custom_element_change.delay_frames,
2942     NULL, "delay time given in", NULL,  "delay time units for change"
2943   },
2944   {
2945     ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
2946     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2947     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2948     -1,
2949     options_change_direct_action,
2950     &custom_element_change.direct_action,
2951     NULL, NULL, NULL,                   "type of direct action"
2952   },
2953   {
2954     ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
2955     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2956     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2957     -1,
2958     options_change_other_action,
2959     &custom_element_change.other_action,
2960     NULL, NULL, "element:",             "type of other element action"
2961   },
2962   {
2963     ED_SELECTBOX_ID_CHANGE_SIDE,
2964     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2965     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2966     -1,
2967     options_change_trigger_side,
2968     &custom_element_change.trigger_side,
2969     NULL, "at", "side",                 "element side triggering change"
2970   },
2971   {
2972     ED_SELECTBOX_ID_CHANGE_PLAYER,
2973     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2974     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2975     -1,
2976     options_change_trigger_player,
2977     &custom_element_change.trigger_player,
2978     NULL, "player:", " ",               "player that causes change"
2979   },
2980   {
2981     ED_SELECTBOX_ID_CHANGE_PAGE,
2982     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2983     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2984     -1,
2985     options_change_trigger_page,
2986     &custom_element_change.trigger_page,
2987     NULL, "page:", NULL,                "change page that causes change"
2988   },
2989   {
2990     ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
2991     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2992     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2993     -1,
2994     options_change_replace_when,
2995     &custom_element_change.replace_when,
2996     NULL, "replace when", NULL,         "which elements can be replaced"
2997   },
2998   {
2999     ED_SELECTBOX_ID_ACTION_TYPE,
3000     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
3001     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
3002     15,
3003     options_action_type,
3004     &custom_element_change.action_type,
3005     NULL, NULL, NULL,                   "action on specified condition"
3006   },
3007   {
3008     ED_SELECTBOX_ID_ACTION_MODE,
3009     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3010     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
3011     -1,
3012     options_action_mode_none,
3013     &custom_element_change.action_mode,
3014     NULL, NULL, NULL,                   "action operator"
3015   },
3016   {
3017     ED_SELECTBOX_ID_ACTION_ARG,
3018     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3019     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
3020     -1,
3021     options_action_arg_none,
3022     &custom_element_change.action_arg,
3023     NULL, NULL, NULL,                   "action parameter"
3024   },
3025   {
3026     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
3027     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
3028     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
3029     3,
3030     options_change_page,
3031     &custom_element.current_change_page,
3032     NULL, NULL, NULL,                   "element change page"
3033   },
3034
3035   // ---------- element settings: configure (group elements) ------------------
3036
3037   {
3038     ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
3039     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3040     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
3041     -1,
3042     options_group_choice_mode,
3043     &group_element_info.choice_mode,
3044     NULL, "choice type:", NULL,         "type of group element choice"
3045   },
3046 };
3047
3048 static struct
3049 {
3050   int gadget_type_id;
3051   int x, y;
3052   int gadget_id;
3053   int gadget_id_align;
3054   int size;
3055   char *text;
3056   char *text_above, *text_left, *text_right, *infotext;
3057 } textbutton_info[ED_NUM_TEXTBUTTONS] =
3058 {
3059   // ---------- level and editor settings (tabs) ------------------------------
3060
3061   {
3062     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
3063     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
3064     GADGET_ID_LEVELCONFIG_LEVEL,        GADGET_ID_NONE,
3065     8,                                  "Level",
3066     NULL, NULL, NULL,                   "Configure level settings"
3067   },
3068   {
3069     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
3070     -1,                                 -1,
3071     GADGET_ID_LEVELCONFIG_LEVELSET,     GADGET_ID_LEVELCONFIG_LEVEL,
3072     8,                                  "Levelset",
3073     NULL, NULL, NULL,                   "Update this or create new level set"
3074   },
3075   {
3076     ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
3077     -1,                                 -1,
3078     GADGET_ID_LEVELCONFIG_EDITOR,       GADGET_ID_LEVELCONFIG_LEVELSET,
3079     8,                                  "Editor",
3080     NULL, NULL, NULL,                   "Configure editor settings"
3081   },
3082   {
3083     ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
3084     -1,                                 -1,
3085     GADGET_ID_LEVELCONFIG_ENGINE,       GADGET_ID_LEVELCONFIG_EDITOR,
3086     8,                                  "Engine",
3087     NULL, NULL, NULL,                   "Configure engine settings"
3088   },
3089
3090   // ---------- element settings (tabs) ---------------------------------------
3091
3092   {
3093     ED_TEXTBUTTON_ID_PROPERTIES_INFO,
3094     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
3095     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
3096     8,                                  "Info",
3097     NULL, NULL, NULL,                   "Show information about element"
3098   },
3099   {
3100     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
3101     -1,                                 -1,
3102     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
3103     8,                                  "Config",
3104     NULL, NULL, NULL,                   "Configure element properties"
3105   },
3106   {
3107     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
3108     -1,                                 -1,
3109     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
3110     8,                                  "Config 1",
3111     NULL, NULL, NULL,                   "Configure element properties, part 1"
3112   },
3113   {
3114     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
3115     -1,                                 -1,
3116     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
3117     8,                                  "Config 2",
3118     NULL, NULL, NULL,                   "Configure element properties, part 2"
3119   },
3120   {
3121     ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
3122     -1,                                 -1,
3123     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
3124     8,                                  "Change",
3125     NULL, NULL, NULL,                   "Configure custom element change pages"
3126   },
3127
3128   // ---------- level and editor settings (buttons) ---------------------------
3129
3130   {
3131     ED_TEXTBUTTON_ID_SAVE_LEVELSET,
3132     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
3133     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
3134     -1,                                 "Save",
3135     NULL, NULL, NULL,                   "Update or create level set"
3136   },
3137   {
3138     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
3139     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3140     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
3141     -1,                                 "Save",
3142     NULL, NULL,                         "this level as level template",
3143     "Save current settings as new template"
3144   },
3145
3146   // ---------- element settings (buttons) ------------------------------------
3147
3148   {
3149     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
3150     -1,                                 -1,
3151     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
3152     -1,                                 "Save",
3153     NULL, " ",                          "As Template",
3154     "Save current settings as new template"
3155   },
3156   {
3157     ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
3158     -1,                                 -1,
3159     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
3160     -1,                                 "New",
3161     NULL, NULL, NULL,                   "Add new change page"
3162   },
3163   {
3164     ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
3165     -1,                                 -1,
3166     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
3167     -1,                                 "Delete",
3168     NULL, NULL, NULL,                   "Delete current change page"
3169   },
3170 };
3171
3172 static struct
3173 {
3174   int gadget_type_id;
3175   int graphic;
3176   int x, y;
3177   int gadget_id;
3178   int gadget_id_align;
3179   char *text_left, *text_right, *infotext;
3180 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
3181 {
3182   {
3183     ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
3184     IMG_EDITOR_COUNTER_DOWN,
3185     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3186     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
3187     NULL, NULL,                         "select previous change page"
3188   },
3189   {
3190     ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
3191     IMG_EDITOR_COUNTER_UP,
3192     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3193     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
3194     NULL, "change page",                "select next change page"
3195   },
3196   {
3197     ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
3198     IMG_GFX_EDITOR_BUTTON_CP_COPY,
3199     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3200     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
3201     " ", NULL,                          "copy settings from this change page"
3202   },
3203   {
3204     ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
3205     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
3206     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3207     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
3208     NULL, NULL,                         "paste settings to this change page"
3209   },
3210 };
3211
3212 static struct
3213 {
3214   int x, y;
3215 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
3216
3217 static struct
3218 {
3219   int gadget_type_id;
3220   int graphic;
3221   int gadget_id;
3222   char *infotext;
3223 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
3224 {
3225   {
3226     ED_SCROLLBUTTON_ID_AREA_UP,
3227     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
3228     GADGET_ID_SCROLL_UP,
3229     "scroll level editing area up"
3230   },
3231   {
3232     ED_SCROLLBUTTON_ID_AREA_DOWN,
3233     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
3234     GADGET_ID_SCROLL_DOWN,
3235     "scroll level editing area down"
3236   },
3237   {
3238     ED_SCROLLBUTTON_ID_AREA_LEFT,
3239     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
3240     GADGET_ID_SCROLL_LEFT,
3241     "scroll level editing area left"
3242   },
3243   {
3244     ED_SCROLLBUTTON_ID_AREA_RIGHT,
3245     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
3246     GADGET_ID_SCROLL_RIGHT,
3247     "scroll level editing area right"
3248   },
3249   {
3250     ED_SCROLLBUTTON_ID_LIST_UP,
3251     IMG_EDITOR_PALETTE_SCROLL_UP,
3252     GADGET_ID_SCROLL_LIST_UP,
3253     "scroll element list up ('Page Up')"
3254   },
3255   {
3256     ED_SCROLLBUTTON_ID_LIST_DOWN,
3257     IMG_EDITOR_PALETTE_SCROLL_DOWN,
3258     GADGET_ID_SCROLL_LIST_DOWN,
3259     "scroll element list down ('Page Down')"
3260   },
3261 };
3262
3263 static struct
3264 {
3265   int x, y;
3266   int width, height;
3267   int wheel_x, wheel_y;
3268   int wheel_width, wheel_height;
3269 } scrollbar_pos[ED_NUM_SCROLLBARS];
3270
3271 static struct
3272 {
3273   int gadget_type_id;
3274   int graphic;
3275   int type;
3276   int gadget_id;
3277   char *infotext;
3278 } scrollbar_info[ED_NUM_SCROLLBARS] =
3279 {
3280   {
3281     ED_SCROLLBAR_ID_AREA_HORIZONTAL,
3282     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3283     GD_TYPE_SCROLLBAR_HORIZONTAL,
3284     GADGET_ID_SCROLL_HORIZONTAL,
3285     "scroll level editing area horizontally"
3286   },
3287   {
3288     ED_SCROLLBAR_ID_AREA_VERTICAL,
3289     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3290     GD_TYPE_SCROLLBAR_VERTICAL,
3291     GADGET_ID_SCROLL_VERTICAL,
3292     "scroll level editing area vertically"
3293   },
3294   {
3295     ED_SCROLLBAR_ID_LIST_VERTICAL,
3296     IMG_EDITOR_PALETTE_SCROLLBAR,
3297     GD_TYPE_SCROLLBAR_VERTICAL,
3298     GADGET_ID_SCROLL_LIST_VERTICAL,
3299     "scroll element list vertically"
3300   }
3301 };
3302
3303
3304 static struct
3305 {
3306   int gadget_type_id;
3307   int x, y;
3308   int gadget_id;
3309   int gadget_id_align;
3310   int radio_button_nr;
3311   int *value;
3312   int checked_value;
3313   char *text_left, *text_right, *infotext;
3314 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3315 {
3316   {
3317     ED_RADIOBUTTON_ID_PERCENTAGE,
3318     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3319     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3320     RADIO_NR_RANDOM_ELEMENTS,
3321     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3322     " ", "percentage",                  "use percentage for random elements"
3323   },
3324   {
3325     ED_RADIOBUTTON_ID_QUANTITY,
3326     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3327     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3328     RADIO_NR_RANDOM_ELEMENTS,
3329     &random_placement_method,           RANDOM_USE_QUANTITY,
3330     " ", "quantity",                    "use quantity for random elements"
3331   }
3332 };
3333
3334 static struct
3335 {
3336   int gadget_type_id;
3337   int x, y;
3338   int gadget_id;
3339   int gadget_id_align;
3340   boolean *value;
3341   char *text_above, *text_left, *text_right, *infotext;
3342 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3343 {
3344   // ---------- level and editor settings -------------------------------------
3345
3346   {
3347     ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
3348     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3349     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3350     &level.auto_count_gems,
3351     NULL, NULL,
3352     "automatically count gems needed",  "set counter to number of gems"
3353   },
3354   {
3355     ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
3356     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3357     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3358     &level.rate_time_over_score,
3359     NULL, NULL,
3360     "rate time/steps used over score",  "sort high scores by playing time/steps"
3361   },
3362   {
3363     ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
3364     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3365     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3366     &levelset_use_levelset_artwork,
3367     NULL, NULL,
3368     "use current custom artwork",       "use custom artwork of this level set"
3369   },
3370   {
3371     ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
3372     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3373     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3374     &levelset_copy_level_template,
3375     NULL, NULL,
3376     "copy current level template",      "copy level template of this level set"
3377   },
3378   {
3379     ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
3380     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3381     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3382     &random_placement_background_restricted,
3383     NULL, NULL,
3384     "restrict random placement to:",    "set random placement restriction"
3385   },
3386   {
3387     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
3388     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3389     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3390     &setup.editor.use_template_for_new_levels,
3391     "Template for new levels and CE/GE:", NULL,
3392     "use template for new levels",      "use template for level properties"
3393   },
3394   {
3395     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
3396     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3397     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3398     &level.use_custom_template,
3399     NULL, NULL,
3400     "use template for custom elements", "use template for custom properties"
3401   },
3402   {
3403     ED_CHECKBUTTON_ID_BD_INTERMISSION,
3404     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
3405     GADGET_ID_BD_INTERMISSION,          GADGET_ID_NONE,
3406     &level.bd_intermission,
3407     "Boulder Dash game engine settings:", NULL,
3408     "intermission",                     "level is an intermission level"
3409   },
3410   {
3411     ED_CHECKBUTTON_ID_BD_PAL_TIMING,
3412     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
3413     GADGET_ID_BD_PAL_TIMING,            GADGET_ID_NONE,
3414     &level.bd_pal_timing,
3415     NULL, NULL,
3416     "PAL timing",                       "use slower timer (like PAL C64)"
3417   },
3418   {
3419     ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
3420     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3421     GADGET_ID_BD_LINE_SHIFTING_BORDERS, GADGET_ID_NONE,
3422     &level.bd_line_shifting_borders,
3423     "Compatibility settings:", NULL,
3424     "line-shifting borders",            "use line-shifting wrap-around"
3425   },
3426   {
3427     ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
3428     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3429     GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW, GADGET_ID_NONE,
3430     &level.bd_scan_first_and_last_row,
3431     NULL, NULL,
3432     "scan first and last row",          "also process top/bottom border rows"
3433   },
3434   {
3435     ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
3436     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3437     GADGET_ID_BD_SHORT_EXPLOSIONS,      GADGET_ID_NONE,
3438     &level.bd_short_explosions,
3439     NULL, NULL,
3440     "short explosions",                 "use four game cycles for explosions"
3441   },
3442   {
3443     ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
3444     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(9),
3445     GADGET_ID_BD_GRAVITY_AFFECTS_ALL,   GADGET_ID_NONE,
3446     &level.bd_gravity_affects_all,
3447     NULL, NULL,
3448     "gravity change affects everything", "gravity affects all falling objects"
3449   },
3450
3451   // ---------- element settings: configure (various elements) ----------------
3452
3453   {
3454     ED_CHECKBUTTON_ID_STICK_ELEMENT,
3455     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3456     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3457     &stick_element_properties_window,
3458     NULL, NULL,
3459     "stick this screen to edit content","stick this screen to edit content"
3460   },
3461   {
3462     ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
3463     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3464     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3465     &level.em_slippery_gems,
3466     NULL, NULL,
3467     "slip down from certain flat walls","use EM/DC style slipping behaviour"
3468   },
3469   {
3470     ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
3471     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3472     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3473     &level.em_explodes_by_fire,
3474     NULL, NULL,
3475     "explodes with chain reaction",     "use R'n'D style explosion behaviour"
3476   },
3477   {
3478     ED_CHECKBUTTON_ID_USE_SPRING_BUG,
3479     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3480     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3481     &level.use_spring_bug,
3482     NULL, NULL,
3483     "use spring pushing bug",           "use odd spring pushing behaviour"
3484   },
3485   {
3486     ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
3487     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3488     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3489     &level.use_time_orb_bug,
3490     NULL, NULL,
3491     "use time orb bug",                 "use odd time orb behaviour"
3492   },
3493   {
3494     ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
3495     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3496     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3497     &level.use_life_bugs,
3498     NULL, NULL,
3499     "use buggy element behaviour",      "use odd (historic) element behaviour"
3500   },
3501   {
3502     ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
3503     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3504     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3505     &level.ball_random,
3506     NULL, NULL,
3507     "create single random element",     "only create one element from content"
3508   },
3509   {
3510     ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
3511     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3512     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3513     &level.ball_active_initial,
3514     NULL, NULL,
3515     "magic ball initially activated",   "activate magic ball after level start"
3516   },
3517   {
3518     ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
3519     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3520     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3521     &level.grow_into_diggable,
3522     NULL, NULL,
3523     "can grow into anything diggable",  "grow into more than just sand"
3524   },
3525   {
3526     ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
3527     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3528     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3529     &level.sb_fields_needed,
3530     NULL, NULL,
3531     "all fields need to be filled",     "require all SB fields to be solved"
3532   },
3533   {
3534     ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
3535     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3536     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3537     &level.sb_objects_needed,
3538     NULL, NULL,
3539     "all objects need to be placed",    "require all SB objects to be solved"
3540   },
3541   {
3542     ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
3543     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3544     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3545     &level.auto_exit_sokoban,
3546     NULL, NULL,
3547     "exit level if all tasks solved",   "automatically finish Sokoban levels"
3548   },
3549   {
3550     ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
3551     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3552     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3553     &level.solved_by_one_player,
3554     NULL, NULL,
3555     "only one player must enter exit",  "level solved by first player in exit"
3556   },
3557   {
3558     ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
3559     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3560     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3561     &level.finish_dig_collect,
3562     NULL, NULL,
3563     "CE action on finished dig/collect", "only finished dig/collect triggers CE"
3564   },
3565   {
3566     ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
3567     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3568     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3569     &level.keep_walkable_ce,
3570     NULL, NULL,
3571     "keep walkable CE changed to player", "keep CE changing to player if walkable"
3572   },
3573   {
3574     ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
3575     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3576     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3577     &level.continuous_snapping,
3578     NULL, NULL,
3579     "continuous snapping",              "use snapping without releasing key"
3580   },
3581   {
3582     ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
3583     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3584     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3585     &level.block_snap_field,
3586     NULL, NULL,
3587     "block snapped field when snapping", "use snapping delay to show animation"
3588   },
3589   {
3590     ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
3591     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3592     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3593     &level.block_last_field,
3594     NULL, NULL,
3595     "block last field when moving",     "player blocks last field when moving"
3596   },
3597   {
3598     ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
3599     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3600     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3601     &level.sp_block_last_field,
3602     NULL, NULL,
3603     "block last field when moving",     "player blocks last field when moving"
3604   },
3605   {
3606     ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
3607     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3608     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3609     &level.instant_relocation,
3610     NULL, NULL,
3611     "no scrolling when relocating",     "player gets relocated without delay"
3612   },
3613   {
3614     ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
3615     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3616     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3617     &level.shifted_relocation,
3618     NULL, NULL,
3619     "no centering when relocating",     "level not centered after relocation"
3620   },
3621   {
3622     ED_CHECKBUTTON_ID_LAZY_RELOCATION,
3623     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3624     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3625     &level.lazy_relocation,
3626     NULL, NULL,
3627     "only redraw off-screen relocation","no redraw if relocation target visible"
3628   },
3629   {
3630     ED_CHECKBUTTON_ID_USE_START_ELEMENT,
3631     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3632     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3633     &level.use_start_element[0],
3634     NULL, NULL,
3635     "use level start element:",        "start level at this element's position"
3636   },
3637   {
3638     ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
3639     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3640     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3641     &level.use_artwork_element[0],
3642     NULL, NULL,
3643     "use artwork from element:",        "use player artwork from other element"
3644   },
3645   {
3646     ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
3647     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3648     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3649     &level.use_explosion_element[0],
3650     NULL, NULL,
3651     "use explosion from element:",      "use explosion properties from element"
3652   },
3653   {
3654     ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
3655     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3656     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3657     &level.initial_player_gravity[0],
3658     NULL, NULL,
3659     "use initial gravity",              "set initial player gravity"
3660   },
3661   {
3662     ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
3663     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3664     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3665     &level.use_initial_inventory[0],
3666     NULL, NULL,
3667     "use initial inventory:",           "use collected elements on level start"
3668   },
3669   {
3670     ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
3671     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3672     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3673     &level.can_pass_to_walkable,
3674     NULL, NULL,
3675     "can pass to walkable element",     "player can pass to empty or walkable"
3676   },
3677   {
3678     ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
3679     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3680     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3681     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3682     NULL, NULL,
3683     "can fall into acid (with gravity)","player can fall into acid pool"
3684   },
3685   {
3686     ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
3687     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3688     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3689     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3690     NULL, NULL,
3691     "can move into acid",               "element can move into acid pool"
3692   },
3693   {
3694     ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
3695     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3696     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3697     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3698     NULL, NULL,
3699     "deadly when colliding with",       "element is deadly when hitting player"
3700   },
3701   {
3702     ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
3703     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3704     GADGET_ID_BD_DIAGONAL_MOVEMENTS,    GADGET_ID_NONE,
3705     &level.bd_diagonal_movements,
3706     NULL, NULL,
3707     "can move diagonally",              "player can move diagonally"
3708   },
3709   {
3710     ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
3711     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3712     GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE, GADGET_ID_NONE,
3713     &level.bd_topmost_player_active,
3714     NULL, NULL,
3715     "topmost player is active",         "use first player found on playfield"
3716   },
3717   {
3718     ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
3719     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3720     GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET, GADGET_ID_NONE,
3721     &level.bd_push_mega_rock_with_sweet,
3722     NULL, NULL,
3723     "mega rocks pushable with sweet",   "push mega rocks after eating sweet"
3724   },
3725   {
3726     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
3727     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3728     GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING, GADGET_ID_NONE,
3729     &level.bd_magic_wall_wait_hatching,
3730     NULL, NULL,
3731     "wait for player's birth",          "timer start waits for player's birth"
3732   },
3733   {
3734     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
3735     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3736     GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA, GADGET_ID_NONE,
3737     &level.bd_magic_wall_stops_amoeba,
3738     NULL, NULL,
3739     "turn amoeba to diamonds",          "activation changes amoeba to diamonds"
3740   },
3741   {
3742     ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
3743     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3744     GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING, GADGET_ID_NONE,
3745     &level.bd_amoeba_wait_for_hatching,
3746     NULL, NULL,
3747     "wait for player's birth",          "timer start waits for player's birth"
3748   },
3749   {
3750     ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
3751     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3752     GADGET_ID_BD_AMOEBA_START_IMMEDIATELY, GADGET_ID_NONE,
3753     &level.bd_amoeba_start_immediately,
3754     NULL, NULL,
3755     "start growing immediately",        "start slow growth time immediately"
3756   },
3757   {
3758     ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
3759     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3760     GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA, GADGET_ID_NONE,
3761     &level.bd_amoeba_2_explode_by_amoeba,
3762     NULL, NULL,
3763     "explodes if touched by amoeba",    "amoeba 2 explodes if touched by amoeba"
3764   },
3765   {
3766     ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
3767     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3768     GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS, GADGET_ID_NONE,
3769     &level.bd_voodoo_collects_diamonds,
3770     NULL, NULL,
3771     "can collect diamonds",             "can collect diamonds for the player"
3772   },
3773   {
3774     ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
3775     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3776     GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER, GADGET_ID_NONE,
3777     &level.bd_voodoo_hurt_kills_player,
3778     NULL, NULL,
3779     "player is killed if hurt",         "if hurt in any way, player is killed"
3780   },
3781   {
3782     ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
3783     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3784     GADGET_ID_BD_VOODOO_DIES_BY_ROCK,   GADGET_ID_NONE,
3785     &level.bd_voodoo_dies_by_rock,
3786     NULL, NULL,
3787     "killed by falling rock",           "can be killed by a falling rock"
3788   },
3789   {
3790     ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
3791     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3792     GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION, GADGET_ID_NONE,
3793     &level.bd_voodoo_vanish_by_explosion,
3794     NULL, NULL,
3795     "disappears in explosions",         "can be destroyed by explosions"
3796   },
3797   {
3798     ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE,
3799     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3800     GADGET_ID_BD_SLIME_IS_PREDICTABLE, GADGET_ID_NONE,
3801     &level.bd_slime_is_predictable,
3802     NULL, NULL,
3803     "slime is predictable",             "use predictable random numbers"
3804   },
3805   {
3806     ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
3807     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3808     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3809     &level.envelope[0].autowrap,
3810     NULL, NULL,
3811     "auto-wrap",                        "automatically wrap envelope text"
3812   },
3813   {
3814     ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
3815     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3816     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3817     &level.envelope[0].centered,
3818     NULL, " ",
3819     "centered",                         "automatically center envelope text"
3820   },
3821   {
3822     ED_CHECKBUTTON_ID_MM_LASER_RED,
3823     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3824     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3825     &level.mm_laser_red,
3826     "choose color components for laser:", NULL,
3827     "red",                              "use red color components in laser"
3828   },
3829   {
3830     ED_CHECKBUTTON_ID_MM_LASER_GREEN,
3831     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3832     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3833     &level.mm_laser_green,
3834     NULL, NULL,
3835     "green",                            "use green color components in laser"
3836   },
3837   {
3838     ED_CHECKBUTTON_ID_MM_LASER_BLUE,
3839     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3840     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3841     &level.mm_laser_blue,
3842     NULL, NULL,
3843     "blue",                             "use blue color components in laser"
3844   },
3845   {
3846     ED_CHECKBUTTON_ID_DF_LASER_RED,
3847     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3848     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3849     &level.df_laser_red,
3850     "choose color components for laser:", NULL,
3851     "red",                              "use red color components in laser"
3852   },
3853   {
3854     ED_CHECKBUTTON_ID_DF_LASER_GREEN,
3855     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3856     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3857     &level.df_laser_green,
3858     NULL, NULL,
3859     "green",                            "use green color components in laser"
3860   },
3861   {
3862     ED_CHECKBUTTON_ID_DF_LASER_BLUE,
3863     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3864     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3865     &level.df_laser_blue,
3866     NULL, NULL,
3867     "blue",                             "use blue color components in laser"
3868   },
3869   {
3870     ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
3871     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3872     GADGET_ID_ROTATE_MM_BALL_CONTENT,   GADGET_ID_NONE,
3873     &level.rotate_mm_ball_content,
3874     NULL, NULL,
3875     "randomly rotate created content",  "randomly rotate newly created content"
3876   },
3877   {
3878     ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
3879     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3880     GADGET_ID_EXPLODE_MM_BALL,          GADGET_ID_NONE,
3881     &level.explode_mm_ball,
3882     NULL, NULL,
3883     "explode ball instead of melting",  "use explosion to release ball content"
3884   },
3885
3886   // ---------- element settings: configure 1 (custom elements) ---------------
3887
3888   {
3889     ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
3890     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3891     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3892     &custom_element.use_gfx_element,
3893     NULL, NULL,
3894     "use graphic of element:",          "use existing element graphic"
3895   },
3896   {
3897     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
3898     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3899     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3900     &level.use_custom_template,
3901     NULL, NULL,
3902     "use template",                     "use template for custom properties"
3903   },
3904   {
3905     ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
3906     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3907     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3908     &custom_element_properties[EP_ACCESSIBLE],
3909     NULL, NULL,
3910     NULL,                               "player can walk to or pass this field"
3911   },
3912   {
3913     ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
3914     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3915     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3916     &custom_element_properties[EP_GRAVITY_REACHABLE],
3917     NULL, NULL,
3918     "reachable despite gravity",        "player can walk/dig despite gravity"
3919   },
3920   {
3921     ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
3922     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3923     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3924     &custom_element.use_last_ce_value,
3925     NULL, NULL,
3926     "use last CE value after change",   "use last CE value after change"
3927   },
3928   {
3929     ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
3930     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3931     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3932     &custom_element_properties[EP_WALK_TO_OBJECT],
3933     NULL, NULL,
3934     NULL,                               "player can dig/collect/push element"
3935   },
3936   {
3937     ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
3938     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3939     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3940     &custom_element_properties[EP_INDESTRUCTIBLE],
3941     NULL, NULL,
3942     "indestructible",                   "element is indestructible"
3943   },
3944
3945   // ---------- element settings: configure 2 (custom elements) ---------------
3946
3947   {
3948     ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
3949     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3950     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
3951     &custom_element_properties[EP_CAN_MOVE],
3952     NULL, NULL,
3953     NULL,                               "element can move with some pattern"
3954   },
3955   {
3956     ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
3957     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3958     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
3959     &custom_element_properties[EP_CAN_FALL],
3960     NULL, NULL,
3961     "can fall",                         "element can fall down"
3962   },
3963   {
3964     ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
3965     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
3966     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
3967     &custom_element_properties[EP_CAN_SMASH],
3968     NULL, " ",
3969     NULL,                               "element can smash other elements"
3970   },
3971   {
3972     ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
3973     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3974     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
3975     &custom_element_properties[EP_SLIPPERY],
3976     NULL, NULL,
3977     NULL,                               "other elements can fall down from it"
3978   },
3979   {
3980     ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
3981     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3982     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
3983     &custom_element_properties[EP_DEADLY],
3984     NULL, NULL,
3985     NULL,                               "element can kill the player"
3986   },
3987   {
3988     ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
3989     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3990     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
3991     &custom_element_properties[EP_CAN_EXPLODE],
3992     NULL, NULL,
3993     NULL,                               "element can explode"
3994   },
3995   {
3996     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
3997     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
3998     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
3999     &custom_element_properties[EP_EXPLODES_BY_FIRE],
4000     NULL, NULL,
4001     "by fire",                          "element can explode by fire/explosion"
4002   },
4003   {
4004     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
4005     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
4006     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
4007     &custom_element_properties[EP_EXPLODES_SMASHED],
4008     NULL, " ",
4009     "smashed",                          "element can explode when smashed"
4010   },
4011   {
4012     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
4013     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
4014     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
4015     &custom_element_properties[EP_EXPLODES_IMPACT],
4016     NULL, " ",
4017     "impact",                           "element can explode on impact"
4018   },
4019
4020   // ---------- element settings: advanced (custom elements) ------------------
4021
4022   {
4023     ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
4024     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
4025     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
4026     &custom_element_change.can_change,
4027     NULL, NULL,
4028     "element changes to:",              "change element on specified condition"
4029   },
4030   {
4031     ED_CHECKBUTTON_ID_CHANGE_DELAY,
4032     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
4033     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
4034     &custom_element_change_events[CE_DELAY],
4035     NULL, NULL,
4036     NULL,                               "element changes after delay"
4037   },
4038   {
4039     ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
4040     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
4041     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
4042     &custom_element_change_events[CE_BY_DIRECT_ACTION],
4043     NULL, NULL,
4044     NULL,                               "element changes by direct action"
4045   },
4046   {
4047     ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
4048     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
4049     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
4050     &custom_element_change_events[CE_BY_OTHER_ACTION],
4051     NULL, NULL,
4052     NULL,                               "element changes by other element"
4053   },
4054   {
4055     ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
4056     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
4057     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
4058     &custom_element_change.explode,
4059     NULL, NULL,
4060     "explode instead of change",        "element explodes instead of change"
4061   },
4062   {
4063     ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
4064     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
4065     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
4066     &custom_element_change.use_target_content,
4067     NULL, NULL,
4068     "use extended change target:",      "element changes to more elements"
4069   },
4070   {
4071     ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
4072     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
4073     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
4074     &custom_element_change.only_if_complete,
4075     NULL, NULL,
4076     "replace all or nothing",           "only replace when all can be changed"
4077   },
4078   {
4079     ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
4080     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
4081     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
4082     &custom_element_change.use_random_replace,
4083     NULL, NULL,
4084     NULL,                               "use percentage for random replace"
4085   },
4086   {
4087     ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
4088     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
4089     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
4090     &custom_element_change.has_action,
4091     NULL, NULL,
4092     NULL,                               "execute action on specified condition"
4093   },
4094 };
4095
4096 static struct
4097 {
4098   int gadget_type_id;
4099   int x, y;
4100   int xoffset, yoffset;
4101   int gadget_id;
4102   int gadget_id_align;
4103   int *value;
4104   int area_xsize, area_ysize;
4105   char *text_left, *text_right, *text_above, *text_below, *infotext;
4106 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
4107 {
4108   // ---------- level playfield content ---------------------------------------
4109
4110   {
4111     ED_DRAWING_ID_DRAWING_LEVEL,
4112     0,                                  0,
4113     0,                                  0,
4114     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
4115     NULL,
4116     -1, -1,     // these values are not constant, but can change at runtime
4117     NULL, NULL, NULL, NULL,             NULL
4118   },
4119
4120   // ---------- yam yam content -----------------------------------------------
4121
4122   {
4123     ED_DRAWING_ID_YAMYAM_CONTENT_0,
4124     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4125     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
4126     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
4127     &level.yamyam_content[0].e[0][0],   3, 3,
4128     NULL, NULL, NULL, "1",              NULL
4129   },
4130   {
4131     ED_DRAWING_ID_YAMYAM_CONTENT_1,
4132     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4133     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
4134     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
4135     &level.yamyam_content[1].e[0][0],   3, 3,
4136     NULL, NULL, NULL, "2",              NULL
4137   },
4138   {
4139     ED_DRAWING_ID_YAMYAM_CONTENT_2,
4140     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4141     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
4142     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
4143     &level.yamyam_content[2].e[0][0],   3, 3,
4144     NULL, NULL, NULL, "3",              NULL
4145   },
4146   {
4147     ED_DRAWING_ID_YAMYAM_CONTENT_3,
4148     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4149     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
4150     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
4151     &level.yamyam_content[3].e[0][0],   3, 3,
4152     NULL, NULL, NULL, "4",              NULL
4153   },
4154   {
4155     ED_DRAWING_ID_YAMYAM_CONTENT_4,
4156     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4157     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
4158     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
4159     &level.yamyam_content[4].e[0][0],   3, 3,
4160     NULL, NULL, NULL, "5",              NULL
4161   },
4162   {
4163     ED_DRAWING_ID_YAMYAM_CONTENT_5,
4164     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4165     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
4166     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
4167     &level.yamyam_content[5].e[0][0],   3, 3,
4168     NULL, NULL, NULL, "6",              NULL
4169   },
4170   {
4171     ED_DRAWING_ID_YAMYAM_CONTENT_6,
4172     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4173     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
4174     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
4175     &level.yamyam_content[6].e[0][0],   3, 3,
4176     NULL, NULL, NULL, "7",              NULL
4177   },
4178   {
4179     ED_DRAWING_ID_YAMYAM_CONTENT_7,
4180     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4181     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
4182     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
4183     &level.yamyam_content[7].e[0][0],   3, 3,
4184     NULL, NULL, NULL, "8",              NULL
4185   },
4186
4187   // ---------- magic ball content --------------------------------------------
4188
4189   {
4190     ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
4191     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4192     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
4193     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
4194     &level.ball_content[0].e[0][0],     3, 3,
4195     NULL, NULL, NULL, "1",              NULL
4196   },
4197   {
4198     ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
4199     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4200     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
4201     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
4202     &level.ball_content[1].e[0][0],     3, 3,
4203     NULL, NULL, NULL, "2",              NULL
4204   },
4205   {
4206     ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
4207     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4208     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
4209     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
4210     &level.ball_content[2].e[0][0],     3, 3,
4211     NULL, NULL, NULL, "3",              NULL
4212   },
4213   {
4214     ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
4215     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4216     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
4217     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
4218     &level.ball_content[3].e[0][0],     3, 3,
4219     NULL, NULL, NULL, "4",              NULL
4220   },
4221   {
4222     ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
4223     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4224     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
4225     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
4226     &level.ball_content[4].e[0][0],     3, 3,
4227     NULL, NULL, NULL, "5",              NULL
4228   },
4229   {
4230     ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
4231     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4232     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
4233     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
4234     &level.ball_content[5].e[0][0],     3, 3,
4235     NULL, NULL, NULL, "6",              NULL
4236   },
4237   {
4238     ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
4239     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4240     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
4241     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
4242     &level.ball_content[6].e[0][0],     3, 3,
4243     NULL, NULL, NULL, "7",              NULL
4244   },
4245   {
4246     ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
4247     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4248     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
4249     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
4250     &level.ball_content[7].e[0][0],     3, 3,
4251     NULL, NULL, NULL, "8",              NULL
4252   },
4253
4254   // ---------- android content -----------------------------------------------
4255
4256   {
4257     ED_DRAWING_ID_ANDROID_CONTENT,
4258     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
4259     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4260     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
4261     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
4262     NULL, NULL, "elements:", NULL,      "elements android can clone"
4263   },
4264
4265   // ---------- amoeba content ------------------------------------------------
4266
4267   {
4268     ED_DRAWING_ID_AMOEBA_CONTENT,
4269     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
4270     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4271     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
4272     &level.amoeba_content,              1, 1,
4273     "content:", NULL, NULL, NULL,       "amoeba content"
4274   },
4275
4276   // ---------- BD snap element -----------------------------------------------
4277
4278   {
4279     ED_DRAWING_ID_BD_SNAP_ELEMENT,
4280     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(5),
4281     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4282     GADGET_ID_BD_SNAP_ELEMENT,          GADGET_ID_NONE,
4283     &level.bd_snap_element,             1, 1,
4284     "snap element:", NULL, NULL, NULL,  "element created when snapping"
4285   },
4286
4287   // ---------- BD amoeba content ---------------------------------------------
4288
4289   {
4290     ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
4291     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4292     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4293     GADGET_ID_BD_AMOEBA_CONTENT_TOO_BIG, GADGET_ID_NONE,
4294     &level.bd_amoeba_content_too_big,   1, 1,
4295     "if too big, changes to:", NULL, NULL, NULL,        "BD amoeba content if too big"
4296   },
4297   {
4298     ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
4299     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4300     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4301     GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED, GADGET_ID_NONE,
4302     &level.bd_amoeba_content_enclosed,  1, 1,
4303     "if enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba content if enclosed"
4304   },
4305
4306   // ---------- BD amoeba 2 content -------------------------------------------
4307
4308   {
4309     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
4310     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4311     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4312     GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG, GADGET_ID_NONE,
4313     &level.bd_amoeba_2_content_too_big, 1, 1,
4314     "if too big, changes to:", NULL, NULL, NULL,        "BD amoeba 2 content if too big"
4315   },
4316   {
4317     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
4318     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4319     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4320     GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED, GADGET_ID_NONE,
4321     &level.bd_amoeba_2_content_enclosed,        1, 1,
4322     "if enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba 2 content if enclosed"
4323   },
4324   {
4325     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
4326     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(10),
4327     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4328     GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING, GADGET_ID_NONE,
4329     &level.bd_amoeba_2_content_exploding,       1, 1,
4330     "if exploding, changes to:", NULL, NULL, NULL,      "BD amoeba 2 content if exploding"
4331   },
4332   {
4333     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
4334     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(11),
4335     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4336     GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,   GADGET_ID_NONE,
4337     &level.bd_amoeba_2_content_looks_like,      1, 1,
4338     "use graphic of element:", NULL, NULL, NULL,        "BD amoeba 2 looks like this element"
4339   },
4340
4341   // ---------- level start element -------------------------------------------
4342
4343   {
4344     ED_DRAWING_ID_START_ELEMENT,
4345     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
4346     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4347     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
4348     &level.start_element[0],            1, 1,
4349     NULL, NULL, NULL, NULL,             "level start element"
4350   },
4351
4352   // ---------- player artwork element ----------------------------------------
4353
4354   {
4355     ED_DRAWING_ID_ARTWORK_ELEMENT,
4356     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
4357     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4358     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
4359     &level.artwork_element[0],          1, 1,
4360     NULL, NULL, NULL, NULL,             "element for player artwork"
4361   },
4362
4363   // ---------- player explosion element --------------------------------------
4364
4365   {
4366     ED_DRAWING_ID_EXPLOSION_ELEMENT,
4367     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
4368     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4369     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
4370     &level.explosion_element[0],        1, 1,
4371     NULL, NULL, NULL, NULL,             "element for player explosion"
4372   },
4373
4374   // ---------- player initial inventory --------------------------------------
4375
4376   {
4377     ED_DRAWING_ID_INVENTORY_CONTENT,
4378     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4379     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4380     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
4381     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
4382     NULL, NULL, NULL, NULL,             "content for initial inventory"
4383   },
4384
4385   // ---------- gray ball content -----------------------------------------
4386
4387   {
4388     ED_DRAWING_ID_MM_BALL_CONTENT,
4389     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4390     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4391     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
4392     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
4393     "content:", NULL, NULL, NULL,       "content for gray ball"
4394   },
4395
4396   // ---------- element settings: configure 1 (custom elements) ---------------
4397
4398   // ---------- custom graphic ------------------------------------------------
4399
4400   {
4401     ED_DRAWING_ID_CUSTOM_GRAPHIC,
4402     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4403     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4404     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
4405     &custom_element.gfx_element_initial, 1, 1,
4406     NULL, NULL, NULL, NULL,             "custom graphic element"
4407   },
4408
4409   // ---------- element settings: configure 2 (custom elements) ---------------
4410
4411   // ---------- custom content (when exploding) -------------------------------
4412
4413   {
4414     ED_DRAWING_ID_CUSTOM_CONTENT,
4415     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
4416     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4417     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
4418     &custom_element.content.e[0][0],    3, 3,
4419     "content:", NULL, NULL, NULL,       NULL
4420   },
4421
4422   // ---------- custom enter and leave element (when moving) ------------------
4423
4424   {
4425     ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
4426     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
4427     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4428     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
4429     &custom_element.move_enter_element, 1, 1,
4430     "can dig:", " ", NULL, NULL,        "element that can be digged/collected"
4431   },
4432   {
4433     ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
4434     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
4435     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4436     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
4437     &custom_element.move_leave_element, 1, 1,
4438     NULL, NULL, NULL, NULL,             "element that will be left behind"
4439   },
4440
4441   // ---------- element settings: advanced (custom elements) ------------------
4442
4443   // ---------- custom change target ------------------------------------------
4444
4445   {
4446     ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
4447     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4448     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4449     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
4450     &custom_element_change.target_element, 1, 1,
4451     NULL, "after/when:", NULL, NULL,    "new target element after change"
4452   },
4453
4454   // ---------- custom change content (extended change target) ----------------
4455
4456   {
4457     ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
4458     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
4459     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4460     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
4461     &custom_element_change.target_content.e[0][0], 3, 3,
4462     NULL, NULL, NULL, NULL,             "new extended elements after change"
4463   },
4464
4465   // ---------- custom change trigger (element causing change) ----------------
4466
4467   {
4468     ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
4469     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
4470     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4471     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
4472     &custom_element_change.initial_trigger_element, 1, 1,
4473     NULL, NULL, NULL, NULL,             "other element triggering change"
4474   },
4475
4476   // ---------- custom change action (element used for action) ----------------
4477
4478   {
4479     ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
4480     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
4481     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4482     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
4483     &custom_element_change.action_element, 1, 1,
4484     NULL, NULL, NULL, NULL,             "element used as action parameter"
4485   },
4486
4487   // ---------- group element content -----------------------------------------
4488
4489   {
4490     ED_DRAWING_ID_GROUP_CONTENT,
4491     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4492     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4493     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
4494     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
4495     "content:", NULL, NULL, NULL,       NULL
4496   },
4497
4498   // ---------- random background (for random painting) -----------------------
4499
4500   {
4501     ED_DRAWING_ID_RANDOM_BACKGROUND,
4502     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
4503     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
4504     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
4505     &random_placement_background_element, 1, 1,
4506     NULL, NULL, NULL, NULL,             "random placement background"
4507   },
4508 };
4509
4510
4511 // ----------------------------------------------------------------------------
4512 // some internally used variables
4513 // ----------------------------------------------------------------------------
4514
4515 // maximal size of level editor drawing area
4516 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
4517
4518 // actual size of level editor drawing area
4519 static int ed_fieldx, ed_fieldy;
4520
4521 // actual position of level editor drawing area in level playfield
4522 static int level_xpos = -1, level_ypos = -1;
4523
4524 // actual tile size used to display playfield drawing area
4525 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
4526 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
4527
4528 #define IN_ED_FIELD(x, y)       IN_FIELD(x, y, ed_fieldx, ed_fieldy)
4529
4530 // drawing elements on the three mouse buttons
4531 static int new_element1 = EL_WALL;
4532 static int new_element2 = EL_EMPTY;
4533 static int new_element3 = EL_SAND;
4534
4535 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
4536 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
4537                                 (button) == 2 ? new_element2 : \
4538                                 (button) == 3 ? new_element3 : EL_EMPTY)
4539
4540 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
4541
4542 static int use_permanent_palette = TRUE;
4543
4544 #define PX              (use_permanent_palette ? DX : SX)
4545 #define PY              (use_permanent_palette ? DY : SY)
4546 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
4547 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
4548
4549 // forward declaration for internal use
4550 static void CopyBrushToCursor(int, int);
4551 static void DeleteBrushFromCursor(void);
4552 static void ModifyEditorCounterValue(int, int);
4553 static void ModifyEditorCounterLimits(int, int, int);
4554 static void ModifyEditorSelectboxValue(int, int);
4555 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
4556 static void ModifyEditorDrawingArea(int, int, int);
4557 static void ModifyEditorElementList(void);
4558 static void AdjustElementListScrollbar(void);
4559 static void RedrawDrawingElements(void);
4560 static void DrawDrawingWindowExt(boolean);
4561 static void DrawDrawingWindow(void);
4562 static void DrawLevelConfigWindow(void);
4563 static void DrawPropertiesWindow(void);
4564 static void DrawPaletteWindow(void);
4565 static void UpdateCustomElementGraphicGadgets(void);
4566 static boolean checkPropertiesConfig(int);
4567 static void SetAutomaticNumberOfGemsNeeded(void);
4568 static void ClearEditorGadgetInfoText(void);
4569 static void CopyLevelToUndoBuffer(int);
4570 static void HandleDrawingAreas(struct GadgetInfo *);
4571 static void HandleCounterButtons(struct GadgetInfo *);
4572 static void HandleTextInputGadgets(struct GadgetInfo *);
4573 static void HandleTextAreaGadgets(struct GadgetInfo *);
4574 static void HandleSelectboxGadgets(struct GadgetInfo *);
4575 static void HandleTextbuttonGadgets(struct GadgetInfo *);
4576 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
4577 static void HandleRadiobuttons(struct GadgetInfo *);
4578 static void HandleCheckbuttons(struct GadgetInfo *);
4579 static void HandleControlButtons(struct GadgetInfo *);
4580 static void HandleDrawingAreaInfo(struct GadgetInfo *);
4581 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
4582 static boolean AskToCopyAndModifyLevelTemplate(void);
4583 static boolean getDrawModeHiRes(void);
4584 static int getTabulatorBarWidth(void);
4585 static int getTabulatorBarHeight(void);
4586 static Pixel getTabulatorBarColor(void);
4587 static int numHiresTiles(int);
4588
4589 static int num_editor_gadgets = 0;      // dynamically determined
4590
4591 static struct GadgetInfo **level_editor_gadget = NULL;
4592 static int *right_gadget_border = NULL;
4593
4594 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
4595 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
4596 static boolean draw_with_brush = FALSE;
4597 static int properties_element = 0;
4598
4599 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4600 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4601 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4602 static int undo_buffer_position = 0;
4603 static int undo_buffer_steps = 0;
4604 static int redo_buffer_steps = 0;
4605
4606 static int edit_mode;
4607 static int edit_mode_levelconfig;
4608 static int edit_mode_properties;
4609
4610 static int element_shift = 0;
4611
4612 static int editor_el_players[] =
4613 {
4614   EL_PLAYER_1,
4615   EL_PLAYER_2,
4616   EL_PLAYER_3,
4617   EL_PLAYER_4
4618 };
4619 static int *editor_el_players_ptr = editor_el_players;
4620 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
4621
4622 static int editor_hl_boulderdash[] =
4623 {
4624   EL_INTERNAL_CASCADE_BD_ACTIVE,
4625   EL_CHAR('B'),
4626   EL_CHAR('D'),
4627   EL_EMPTY,
4628 };
4629
4630 static int editor_el_boulderdash[] =
4631 {
4632   EL_EMPTY,
4633   EL_SAND,
4634   EL_BD_ROCK,
4635   EL_BD_DIAMOND,
4636
4637   EL_STEELWALL,
4638   EL_BD_WALL,
4639   EL_BD_EXPANDABLE_WALL,
4640   EL_BD_MAGIC_WALL,
4641
4642   EL_BD_AMOEBA,
4643   EL_BD_BUTTERFLY_UP,
4644   EL_BD_FIREFLY_UP,
4645   EL_EXIT_CLOSED,
4646
4647   EL_BD_BUTTERFLY_LEFT,
4648   EL_BD_FIREFLY_LEFT,
4649   EL_BD_BUTTERFLY_RIGHT,
4650   EL_BD_FIREFLY_RIGHT,
4651
4652   EL_EMPTY,
4653   EL_BD_BUTTERFLY_DOWN,
4654   EL_BD_FIREFLY_DOWN,
4655   EL_EXIT_OPEN,
4656 };
4657 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4658 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4659 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4660 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4661
4662 static int editor_hl_boulderdash_native[] =
4663 {
4664   EL_INTERNAL_CASCADE_BD_NATIVE_ACTIVE,
4665   EL_CHAR('B'),
4666   EL_CHAR('D'),
4667   EL_EMPTY,
4668 };
4669
4670 static int editor_el_boulderdash_native[] =
4671 {
4672   EL_EMPTY,
4673   EL_BD_SAND,
4674   EL_BD_ROCK,
4675   EL_BD_DIAMOND,
4676
4677   EL_BD_STEELWALL,
4678   EL_BD_WALL,
4679   EL_BD_SAND_2,
4680   EL_BD_MAGIC_WALL,
4681
4682   EL_BD_AMOEBA,
4683   EL_BD_BUTTERFLY_UP,
4684   EL_BD_FIREFLY_UP,
4685   EL_BD_EXIT_CLOSED,
4686
4687   EL_BD_BUTTERFLY_LEFT,
4688   EL_BD_FIREFLY_LEFT,
4689   EL_BD_BUTTERFLY_RIGHT,
4690   EL_BD_FIREFLY_RIGHT,
4691
4692   EL_BD_INBOX,
4693   EL_BD_BUTTERFLY_DOWN,
4694   EL_BD_FIREFLY_DOWN,
4695   EL_BD_EXIT_OPEN,
4696
4697   EL_BD_AMOEBA_2,
4698   EL_BD_BUTTERFLY_2_UP,
4699   EL_BD_FIREFLY_2_UP,
4700   EL_BD_SLIME,
4701
4702   EL_BD_BUTTERFLY_2_LEFT,
4703   EL_BD_FIREFLY_2_LEFT,
4704   EL_BD_BUTTERFLY_2_RIGHT,
4705   EL_BD_FIREFLY_2_RIGHT,
4706
4707   EL_BD_BOMB,
4708   EL_BD_BUTTERFLY_2_DOWN,
4709   EL_BD_FIREFLY_2_DOWN,
4710   EL_BD_FLYING_DIAMOND,
4711
4712   EL_BD_NITRO_PACK,
4713   EL_BD_DRAGONFLY_UP,
4714   EL_BD_STONEFLY_UP,
4715   EL_BD_DIAMOND_GLUED,
4716
4717   EL_BD_DRAGONFLY_LEFT,
4718   EL_BD_STONEFLY_LEFT,
4719   EL_BD_DRAGONFLY_RIGHT,
4720   EL_BD_STONEFLY_RIGHT,
4721
4722   EL_BD_NUT,
4723   EL_BD_DRAGONFLY_DOWN,
4724   EL_BD_STONEFLY_DOWN,
4725   EL_EMPTY,
4726
4727   EL_BD_BITER_SWITCH_1,
4728   EL_BD_BITER_UP,
4729   EL_BD_COW_UP,
4730   EL_EMPTY,
4731
4732   EL_BD_BITER_LEFT,
4733   EL_BD_COW_LEFT,
4734   EL_BD_BITER_RIGHT,
4735   EL_BD_COW_RIGHT,
4736
4737   EL_BD_VOODOO_DOLL,
4738   EL_BD_BITER_DOWN,
4739   EL_BD_COW_DOWN,
4740   EL_BD_GHOST,
4741
4742   EL_BD_SAND_GLUED,
4743   EL_BD_SAND_BALL,
4744   EL_BD_SAND_LOOSE,
4745   EL_BD_WALL_NON_SLOPED,
4746
4747   EL_BD_SAND_SLOPED_UP_LEFT,
4748   EL_BD_SAND_SLOPED_UP_RIGHT,
4749   EL_BD_WALL_SLOPED_UP_LEFT,
4750   EL_BD_WALL_SLOPED_UP_RIGHT,
4751
4752   EL_BD_SAND_SLOPED_DOWN_LEFT,
4753   EL_BD_SAND_SLOPED_DOWN_RIGHT,
4754   EL_BD_WALL_SLOPED_DOWN_LEFT,
4755   EL_BD_WALL_SLOPED_DOWN_RIGHT,
4756
4757   EL_BD_FLYING_ROCK,
4758   EL_BD_ROCK_GLUED,
4759   EL_BD_STEELWALL_SLOPED_UP_LEFT,
4760   EL_BD_STEELWALL_SLOPED_UP_RIGHT,
4761
4762   EL_BD_WAITING_ROCK,
4763   EL_BD_CHASING_ROCK,
4764   EL_BD_STEELWALL_SLOPED_DOWN_LEFT,
4765   EL_BD_STEELWALL_SLOPED_DOWN_RIGHT,
4766
4767   EL_BD_MEGA_ROCK,
4768   EL_BD_SWEET,
4769   EL_BD_INVISIBLE_EXIT_CLOSED,
4770   EL_BD_INVISIBLE_EXIT_OPEN,
4771
4772   EL_BD_STEELWALL_EXPLODABLE,
4773   EL_BD_STEELWALL_DIGGABLE,
4774   EL_BD_WALL_DIGGABLE,
4775   EL_BD_FALLING_WALL,
4776
4777   EL_BD_EXPANDABLE_WALL_HORIZONTAL,
4778   EL_BD_EXPANDABLE_WALL_VERTICAL,
4779   EL_BD_EXPANDABLE_WALL_ANY,
4780   EL_BD_EXPANDABLE_WALL_SWITCH_HORIZONTAL,
4781
4782   EL_BD_EXPANDABLE_STEELWALL_HORIZONTAL,
4783   EL_BD_EXPANDABLE_STEELWALL_VERTICAL,
4784   EL_BD_EXPANDABLE_STEELWALL_ANY,
4785   EL_BD_CREATURE_SWITCH,
4786
4787   EL_BD_BLADDER,
4788   EL_BD_BLADDER_SPENDER,
4789   EL_BD_REPLICATOR,
4790   EL_BD_REPLICATOR_SWITCH,
4791
4792   EL_BD_CONVEYOR_LEFT,
4793   EL_BD_CONVEYOR_RIGHT,
4794   EL_BD_CONVEYOR_SWITCH,
4795   EL_BD_CONVEYOR_DIR_SWITCH_RIGHT,
4796
4797   EL_BD_CLOCK,
4798   EL_BD_TIME_PENALTY,
4799   EL_BD_GRAVESTONE,
4800   EL_BD_SKELETON,
4801
4802   EL_BD_WATER,
4803   EL_BD_ACID,
4804   EL_BD_LAVA,
4805   EL_BD_BOX,
4806
4807   EL_BD_GATE_1,
4808   EL_BD_GATE_2,
4809   EL_BD_GATE_3,
4810   EL_BD_TRAPPED_DIAMOND,
4811
4812   EL_BD_KEY_1,
4813   EL_BD_KEY_2,
4814   EL_BD_KEY_3,
4815   EL_BD_DIAMOND_KEY,
4816
4817   EL_BD_WALL_KEY_1,
4818   EL_BD_WALL_KEY_2,
4819   EL_BD_WALL_KEY_3,
4820   EL_BD_WALL_DIAMOND,
4821
4822   EL_BD_GRAVITY_SWITCH,
4823   EL_BD_PNEUMATIC_HAMMER,
4824   EL_BD_TELEPORTER,
4825   EL_BD_POT,
4826
4827   EL_BD_PLAYER,
4828   EL_BD_PLAYER_WITH_BOMB,
4829   EL_BD_PLAYER_GLUED,
4830   EL_BD_PLAYER_STIRRING,
4831 };
4832 static int *editor_hl_boulderdash_native_ptr = editor_hl_boulderdash_native;
4833 static int *editor_el_boulderdash_native_ptr = editor_el_boulderdash_native;
4834 static int num_editor_hl_boulderdash_native = ARRAY_SIZE(editor_hl_boulderdash_native);
4835 static int num_editor_el_boulderdash_native = ARRAY_SIZE(editor_el_boulderdash_native);
4836
4837 static int editor_hl_emerald_mine[] =
4838 {
4839   EL_INTERNAL_CASCADE_EM_ACTIVE,
4840   EL_CHAR('E'),
4841   EL_CHAR('M'),
4842   EL_EMPTY,
4843 };
4844
4845 static int editor_el_emerald_mine[] =
4846 {
4847   EL_SAND,
4848   EL_ROCK,
4849   EL_QUICKSAND_EMPTY,
4850   EL_QUICKSAND_FULL,
4851
4852   EL_STEELWALL,
4853   EL_WALL,
4854   EL_WALL_SLIPPERY,
4855   EL_MAGIC_WALL,
4856
4857   EL_EMERALD,
4858   EL_DIAMOND,
4859   EL_NUT,
4860   EL_BOMB,
4861
4862   EL_EM_DYNAMITE,
4863   EL_EM_DYNAMITE_ACTIVE,
4864   EL_EM_EXIT_CLOSED,
4865   EL_EM_EXIT_OPEN,
4866
4867   EL_YAMYAM_UP,
4868   EL_BUG_UP,
4869   EL_SPACESHIP_UP,
4870   EL_ROBOT,
4871
4872   EL_BUG_LEFT,
4873   EL_SPACESHIP_LEFT,
4874   EL_BUG_RIGHT,
4875   EL_SPACESHIP_RIGHT,
4876
4877   EL_ROBOT_WHEEL,
4878   EL_BUG_DOWN,
4879   EL_SPACESHIP_DOWN,
4880   EL_INVISIBLE_WALL,
4881
4882   EL_ACID_POOL_TOPLEFT,
4883   EL_ACID,
4884   EL_ACID_POOL_TOPRIGHT,
4885   EL_AMOEBA_DROP,
4886
4887   EL_ACID_POOL_BOTTOMLEFT,
4888   EL_ACID_POOL_BOTTOM,
4889   EL_ACID_POOL_BOTTOMRIGHT,
4890   EL_AMOEBA_WET,
4891
4892   EL_EM_KEY_1,
4893   EL_EM_KEY_2,
4894   EL_EM_KEY_3,
4895   EL_EM_KEY_4,
4896
4897   EL_EM_GATE_1,
4898   EL_EM_GATE_2,
4899   EL_EM_GATE_3,
4900   EL_EM_GATE_4,
4901
4902   EL_EM_GATE_1_GRAY,
4903   EL_EM_GATE_2_GRAY,
4904   EL_EM_GATE_3_GRAY,
4905   EL_EM_GATE_4_GRAY,
4906 };
4907 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
4908 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
4909 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
4910 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
4911
4912 static int editor_hl_emerald_mine_club[] =
4913 {
4914   EL_INTERNAL_CASCADE_EMC_ACTIVE,
4915   EL_CHAR('E'),
4916   EL_CHAR('M'),
4917   EL_CHAR('C'),
4918 };
4919
4920 static int editor_el_emerald_mine_club[] =
4921 {
4922   EL_EMC_KEY_5,
4923   EL_EMC_KEY_6,
4924   EL_EMC_KEY_7,
4925   EL_EMC_KEY_8,
4926
4927   EL_EMC_GATE_5,
4928   EL_EMC_GATE_6,
4929   EL_EMC_GATE_7,
4930   EL_EMC_GATE_8,
4931
4932   EL_EMC_GATE_5_GRAY,
4933   EL_EMC_GATE_6_GRAY,
4934   EL_EMC_GATE_7_GRAY,
4935   EL_EMC_GATE_8_GRAY,
4936
4937   EL_EMC_STEELWALL_1,
4938   EL_EMC_STEELWALL_2,
4939   EL_EMC_STEELWALL_3,
4940   EL_EMC_STEELWALL_4,
4941
4942   EL_EMC_WALL_13,
4943   EL_EMC_WALL_14,
4944   EL_EMC_WALL_15,
4945   EL_EMC_WALL_16,
4946
4947   EL_EMC_WALL_SLIPPERY_1,
4948   EL_EMC_WALL_SLIPPERY_2,
4949   EL_EMC_WALL_SLIPPERY_3,
4950   EL_EMC_WALL_SLIPPERY_4,
4951
4952   EL_EMC_WALL_1,
4953   EL_EMC_WALL_2,
4954   EL_EMC_WALL_3,
4955   EL_EMC_WALL_4,
4956
4957   EL_EMC_WALL_5,
4958   EL_EMC_WALL_6,
4959   EL_EMC_WALL_7,
4960   EL_EMC_WALL_8,
4961
4962   EL_EMC_WALL_9,
4963   EL_EMC_WALL_10,
4964   EL_EMC_WALL_11,
4965   EL_EMC_WALL_12,
4966
4967   EL_EMC_GRASS,
4968   EL_EMC_FAKE_GRASS,
4969   EL_EMC_PLANT,
4970   EL_EMC_DRIPPER,
4971
4972   EL_EMC_MAGIC_BALL,
4973   EL_EMC_MAGIC_BALL_SWITCH,
4974   EL_EMC_LENSES,
4975   EL_EMC_MAGNIFIER,
4976
4977   EL_SPRING_LEFT,
4978   EL_SPRING,
4979   EL_SPRING_RIGHT,
4980   EL_EMC_SPRING_BUMPER,
4981
4982   EL_BALLOON,
4983   EL_YAMYAM_UP,
4984   EL_BALLOON_SWITCH_UP,
4985   EL_BALLOON_SWITCH_ANY,
4986
4987   EL_YAMYAM_LEFT,
4988   EL_BALLOON_SWITCH_LEFT,
4989   EL_YAMYAM_RIGHT,
4990   EL_BALLOON_SWITCH_RIGHT,
4991
4992   EL_EMC_ANDROID,
4993   EL_YAMYAM_DOWN,
4994   EL_BALLOON_SWITCH_DOWN,
4995   EL_BALLOON_SWITCH_NONE,
4996 };
4997 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
4998 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
4999 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
5000 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
5001
5002 static int editor_hl_rnd[] =
5003 {
5004   EL_INTERNAL_CASCADE_RND_ACTIVE,
5005   EL_CHAR('R'),
5006   EL_CHAR('N'),
5007   EL_CHAR('D'),
5008 };
5009
5010 static int editor_el_rnd[] =
5011 {
5012   EL_DYNAMITE,                  // RND
5013   EL_DYNAMITE_ACTIVE,           // RND
5014   EL_EMPTY,
5015   EL_EMPTY,
5016
5017   EL_KEY_1,
5018   EL_KEY_2,
5019   EL_KEY_3,
5020   EL_KEY_4,
5021
5022   EL_GATE_1,
5023   EL_GATE_2,
5024   EL_GATE_3,
5025   EL_GATE_4,
5026
5027   EL_GATE_1_GRAY,
5028   EL_GATE_2_GRAY,
5029   EL_GATE_3_GRAY,
5030   EL_GATE_4_GRAY,
5031
5032   EL_ARROW_LEFT,
5033   EL_ARROW_RIGHT,
5034   EL_ARROW_UP,
5035   EL_ARROW_DOWN,
5036
5037   EL_AMOEBA_DEAD,
5038   EL_AMOEBA_DRY,
5039   EL_AMOEBA_FULL,
5040   EL_GAME_OF_LIFE,
5041
5042   EL_EMERALD_YELLOW,
5043   EL_EMERALD_RED,
5044   EL_EMERALD_PURPLE,
5045   EL_BIOMAZE,
5046
5047   EL_WALL_EMERALD_YELLOW,
5048   EL_WALL_EMERALD_RED,
5049   EL_WALL_EMERALD_PURPLE,
5050   EL_WALL_BD_DIAMOND,
5051
5052   EL_SPEED_PILL,
5053   EL_PACMAN_UP,
5054   EL_TIME_ORB_FULL,
5055   EL_TIME_ORB_EMPTY,
5056
5057   EL_PACMAN_LEFT,
5058   EL_DARK_YAMYAM,
5059   EL_PACMAN_RIGHT,
5060   EL_YAMYAM,                    // RND
5061
5062   EL_BLACK_ORB,
5063   EL_PACMAN_DOWN,
5064   EL_LAMP,
5065   EL_LAMP_ACTIVE,
5066
5067   EL_DYNABOMB_INCREASE_NUMBER,
5068   EL_DYNABOMB_INCREASE_SIZE,
5069   EL_DYNABOMB_INCREASE_POWER,
5070   EL_STONEBLOCK,
5071
5072   EL_MOLE,
5073   EL_PENGUIN,
5074   EL_PIG,
5075   EL_DRAGON,
5076
5077   EL_BUG,
5078   EL_MOLE_UP,
5079   EL_BD_BUTTERFLY,
5080   EL_BD_FIREFLY,
5081
5082   EL_MOLE_LEFT,
5083   EL_SATELLITE,
5084   EL_MOLE_RIGHT,
5085   EL_PACMAN,
5086
5087   EL_SPACESHIP,
5088   EL_MOLE_DOWN,
5089   EL_INVISIBLE_STEELWALL,
5090   EL_INVISIBLE_WALL,
5091
5092   EL_EXPANDABLE_WALL,
5093   EL_EXPANDABLE_WALL_HORIZONTAL,
5094   EL_EXPANDABLE_WALL_VERTICAL,
5095   EL_EXPANDABLE_WALL_ANY,
5096 };
5097 static int *editor_hl_rnd_ptr = editor_hl_rnd;
5098 static int *editor_el_rnd_ptr = editor_el_rnd;
5099 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
5100 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
5101
5102 static int editor_hl_sokoban[] =
5103 {
5104   EL_INTERNAL_CASCADE_SB_ACTIVE,
5105   EL_CHAR('S'),
5106   EL_CHAR('B'),
5107   EL_EMPTY,
5108 };
5109
5110 static int editor_el_sokoban[] =
5111 {
5112   EL_SOKOBAN_OBJECT,
5113   EL_SOKOBAN_FIELD_EMPTY,
5114   EL_SOKOBAN_FIELD_FULL,
5115   EL_SOKOBAN_FIELD_PLAYER,
5116 };
5117 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
5118 static int *editor_el_sokoban_ptr = editor_el_sokoban;
5119 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
5120 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
5121
5122 static int editor_hl_supaplex[] =
5123 {
5124   EL_INTERNAL_CASCADE_SP_ACTIVE,
5125   EL_CHAR('S'),
5126   EL_CHAR('P'),
5127   EL_EMPTY,
5128 };
5129
5130 static int editor_el_supaplex[] =
5131 {
5132   EL_SP_MURPHY,
5133   EL_EMPTY,
5134   EL_SP_BASE,
5135   EL_SP_BUGGY_BASE,
5136
5137   EL_SP_INFOTRON,
5138   EL_SP_ZONK,
5139   EL_SP_SNIKSNAK,
5140   EL_SP_ELECTRON,
5141
5142   EL_SP_DISK_RED,
5143   EL_SP_DISK_ORANGE,
5144   EL_SP_DISK_YELLOW,
5145   EL_SP_TERMINAL,
5146
5147   EL_SP_EXIT_CLOSED,
5148   EL_SP_PORT_HORIZONTAL,
5149   EL_SP_PORT_VERTICAL,
5150   EL_SP_PORT_ANY,
5151
5152   EL_SP_PORT_LEFT,
5153   EL_SP_PORT_RIGHT,
5154   EL_SP_PORT_UP,
5155   EL_SP_PORT_DOWN,
5156
5157   EL_SP_GRAVITY_PORT_LEFT,
5158   EL_SP_GRAVITY_PORT_RIGHT,
5159   EL_SP_GRAVITY_PORT_UP,
5160   EL_SP_GRAVITY_PORT_DOWN,
5161
5162   EL_SP_GRAVITY_ON_PORT_LEFT,
5163   EL_SP_GRAVITY_ON_PORT_RIGHT,
5164   EL_SP_GRAVITY_ON_PORT_UP,
5165   EL_SP_GRAVITY_ON_PORT_DOWN,
5166
5167   EL_SP_GRAVITY_OFF_PORT_LEFT,
5168   EL_SP_GRAVITY_OFF_PORT_RIGHT,
5169   EL_SP_GRAVITY_OFF_PORT_UP,
5170   EL_SP_GRAVITY_OFF_PORT_DOWN,
5171
5172   EL_SP_HARDWARE_GRAY,
5173   EL_SP_HARDWARE_GREEN,
5174   EL_SP_HARDWARE_BLUE,
5175   EL_SP_HARDWARE_RED,
5176
5177   EL_SP_HARDWARE_BASE_1,
5178   EL_SP_HARDWARE_BASE_2,
5179   EL_SP_HARDWARE_BASE_3,
5180   EL_SP_HARDWARE_BASE_4,
5181
5182   EL_SP_HARDWARE_BASE_5,
5183   EL_SP_HARDWARE_BASE_6,
5184   EL_SP_HARDWARE_YELLOW,
5185   EL_SP_CHIP_TOP,
5186
5187   EL_SP_CHIP_SINGLE,
5188   EL_SP_CHIP_LEFT,
5189   EL_SP_CHIP_RIGHT,
5190   EL_SP_CHIP_BOTTOM,
5191 };
5192 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
5193 static int *editor_el_supaplex_ptr = editor_el_supaplex;
5194 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
5195 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
5196
5197 static int editor_hl_diamond_caves[] =
5198 {
5199   EL_INTERNAL_CASCADE_DC_ACTIVE,
5200   EL_CHAR('D'),
5201   EL_CHAR('C'),
5202   EL_CHAR('2'),
5203 };
5204
5205 static int editor_el_diamond_caves[] =
5206 {
5207   EL_EM_STEEL_EXIT_CLOSED,      // DC2
5208   EL_EM_STEEL_EXIT_OPEN,        // DC2
5209   EL_WALL_EMERALD,              // DC2
5210   EL_WALL_DIAMOND,              // DC2
5211
5212   EL_PEARL,
5213   EL_CRYSTAL,
5214   EL_WALL_PEARL,
5215   EL_WALL_CRYSTAL,
5216
5217   EL_CONVEYOR_BELT_1_LEFT,
5218   EL_CONVEYOR_BELT_1_MIDDLE,
5219   EL_CONVEYOR_BELT_1_RIGHT,
5220   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
5221
5222   EL_CONVEYOR_BELT_2_LEFT,
5223   EL_CONVEYOR_BELT_2_MIDDLE,
5224   EL_CONVEYOR_BELT_2_RIGHT,
5225   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
5226
5227   EL_CONVEYOR_BELT_3_LEFT,
5228   EL_CONVEYOR_BELT_3_MIDDLE,
5229   EL_CONVEYOR_BELT_3_RIGHT,
5230   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
5231
5232   EL_CONVEYOR_BELT_4_LEFT,
5233   EL_CONVEYOR_BELT_4_MIDDLE,
5234   EL_CONVEYOR_BELT_4_RIGHT,
5235   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
5236
5237   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
5238   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
5239   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
5240   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
5241
5242   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
5243   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
5244   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
5245   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
5246
5247   EL_TIMEGATE_CLOSED,
5248   EL_TIMEGATE_OPEN,
5249   EL_TIMEGATE_SWITCH,
5250   EL_DC_TIMEGATE_SWITCH,
5251
5252   EL_SWITCHGATE_CLOSED,
5253   EL_SWITCHGATE_OPEN,
5254   EL_SWITCHGATE_SWITCH_UP,
5255   EL_SWITCHGATE_SWITCH_DOWN,
5256
5257   EL_LIGHT_SWITCH,
5258   EL_LIGHT_SWITCH_ACTIVE,
5259   EL_DC_SWITCHGATE_SWITCH_UP,
5260   EL_DC_SWITCHGATE_SWITCH_DOWN,
5261
5262   EL_STEEL_EXIT_CLOSED,
5263   EL_STEEL_EXIT_OPEN,
5264   EL_STEELWALL_SLIPPERY,
5265   EL_INVISIBLE_SAND,
5266
5267   EL_QUICKSAND_FAST_EMPTY,
5268   EL_QUICKSAND_FAST_FULL,
5269   EL_LANDMINE,
5270   EL_DC_LANDMINE,
5271
5272   EL_SHIELD_NORMAL,
5273   EL_SHIELD_DEADLY,
5274   EL_EXTRA_TIME,
5275   EL_DC_MAGIC_WALL,
5276
5277   EL_ENVELOPE_1,
5278   EL_ENVELOPE_2,
5279   EL_ENVELOPE_3,
5280   EL_ENVELOPE_4,
5281
5282   EL_SIGN_RADIOACTIVITY,
5283   EL_SIGN_WHEELCHAIR,
5284   EL_SIGN_PARKING,
5285   EL_SIGN_NO_ENTRY,
5286
5287   EL_SIGN_GIVE_WAY,
5288   EL_SIGN_ENTRY_FORBIDDEN,
5289   EL_SIGN_EMERGENCY_EXIT,
5290   EL_SIGN_YIN_YANG,
5291
5292 #if 0
5293   EL_SIGN_SPERMS,
5294   EL_SIGN_BULLET,
5295   EL_SIGN_HEART,
5296   EL_SIGN_CROSS,
5297
5298   EL_SIGN_FRANKIE,
5299   EL_EMPTY,
5300   EL_EMPTY,
5301   EL_EMPTY,
5302
5303   EL_SPERMS,
5304   EL_BULLET,
5305   EL_HEART,
5306   EL_CROSS,
5307
5308   EL_FRANKIE,
5309   EL_EMPTY,
5310   EL_EMPTY,
5311   EL_EMPTY,
5312 #endif
5313
5314   EL_DC_STEELWALL_2_SINGLE,
5315   EL_DC_STEELWALL_2_TOP,
5316   EL_SIGN_EXCLAMATION,
5317   EL_SIGN_STOP,
5318
5319   EL_DC_STEELWALL_2_LEFT,
5320   EL_DC_STEELWALL_2_MIDDLE,
5321   EL_DC_STEELWALL_2_HORIZONTAL,
5322   EL_DC_STEELWALL_2_RIGHT,
5323
5324   EL_DC_STEELWALL_1_TOPLEFT,
5325   EL_DC_STEELWALL_2_VERTICAL,
5326   EL_DC_STEELWALL_1_TOPRIGHT,
5327   EL_DC_GATE_WHITE,
5328
5329   EL_DC_STEELWALL_1_VERTICAL,
5330   EL_DC_STEELWALL_2_BOTTOM,
5331   EL_DC_KEY_WHITE,
5332   EL_DC_GATE_WHITE_GRAY,
5333
5334   EL_DC_STEELWALL_1_BOTTOMLEFT,
5335   EL_DC_STEELWALL_1_HORIZONTAL,
5336   EL_DC_STEELWALL_1_BOTTOMRIGHT,
5337   EL_DC_GATE_FAKE_GRAY,
5338
5339   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
5340   EL_DC_STEELWALL_1_BOTTOM,
5341   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
5342   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
5343
5344   EL_DC_STEELWALL_1_RIGHT,
5345   EL_EMPTY,
5346   EL_DC_STEELWALL_1_LEFT,
5347   EL_EXPANDABLE_STEELWALL_VERTICAL,
5348
5349   EL_DC_STEELWALL_1_TOPRIGHT_2,
5350   EL_DC_STEELWALL_1_TOP,
5351   EL_DC_STEELWALL_1_TOPLEFT_2,
5352   EL_EXPANDABLE_STEELWALL_ANY,
5353 };
5354 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
5355 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
5356 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
5357 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
5358
5359 static int editor_hl_dx_boulderdash[] =
5360 {
5361   EL_INTERNAL_CASCADE_DX_ACTIVE,
5362   EL_CHAR('D'),
5363   EL_CHAR('X'),
5364   EL_EMPTY,
5365 };
5366
5367 static int editor_el_dx_boulderdash[] =
5368 {
5369   EL_EMPTY,
5370   EL_TUBE_RIGHT_DOWN,
5371   EL_TUBE_HORIZONTAL_DOWN,
5372   EL_TUBE_LEFT_DOWN,
5373
5374   EL_TUBE_HORIZONTAL,
5375   EL_TUBE_VERTICAL_RIGHT,
5376   EL_TUBE_ANY,
5377   EL_TUBE_VERTICAL_LEFT,
5378
5379   EL_TUBE_VERTICAL,
5380   EL_TUBE_RIGHT_UP,
5381   EL_TUBE_HORIZONTAL_UP,
5382   EL_TUBE_LEFT_UP,
5383
5384   EL_TRAP,
5385   EL_DX_SUPABOMB,
5386   EL_EMPTY,
5387   EL_EMPTY
5388 };
5389 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
5390 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
5391 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
5392 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
5393
5394 static int editor_hl_mirror_magic[] =
5395 {
5396   EL_INTERNAL_CASCADE_MM_ACTIVE,
5397   EL_CHAR('M'),
5398   EL_CHAR('M'),
5399   EL_EMPTY,
5400 };
5401
5402 static int editor_el_mirror_magic[] =
5403 {
5404   EL_MM_MCDUFFIN_RIGHT,
5405   EL_MM_MCDUFFIN_UP,
5406   EL_MM_MCDUFFIN_LEFT,
5407   EL_MM_MCDUFFIN_DOWN,
5408
5409   EL_MM_MIRROR_START,
5410   EL_MM_MIRROR_FIXED_START,
5411   EL_MM_POLARIZER_START,
5412   EL_MM_POLARIZER_CROSS_START,
5413
5414   EL_MM_TELEPORTER_RED_START,
5415   EL_MM_TELEPORTER_YELLOW_START,
5416   EL_MM_TELEPORTER_GREEN_START,
5417   EL_MM_TELEPORTER_BLUE_START,
5418
5419   EL_MM_PRISM,
5420   EL_MM_FUSE_ACTIVE,
5421   EL_MM_PACMAN_RIGHT,
5422   EL_MM_EXIT_CLOSED,
5423
5424   EL_MM_KETTLE,
5425   EL_MM_BOMB,
5426   EL_MM_KEY,
5427   EL_MM_FUEL_FULL,
5428
5429   EL_MM_LIGHTBULB,
5430   EL_MM_LIGHTBULB_ACTIVE,
5431   EL_MM_GRAY_BALL,
5432   EL_MM_LIGHTBALL,
5433
5434   EL_MM_STEEL_WALL,
5435   EL_MM_WOODEN_WALL,
5436   EL_MM_ICE_WALL,
5437   EL_MM_AMOEBA_WALL,
5438
5439   EL_MM_STEEL_LOCK,
5440   EL_MM_WOODEN_LOCK,
5441   EL_MM_STEEL_BLOCK,
5442   EL_MM_WOODEN_BLOCK,
5443
5444   EL_MM_STEEL_GRID_FIXED_1,
5445   EL_MM_STEEL_GRID_FIXED_2,
5446   EL_MM_STEEL_GRID_FIXED_3,
5447   EL_MM_STEEL_GRID_FIXED_4,
5448
5449   EL_MM_WOODEN_GRID_FIXED_1,
5450   EL_MM_WOODEN_GRID_FIXED_2,
5451   EL_MM_WOODEN_GRID_FIXED_3,
5452   EL_MM_WOODEN_GRID_FIXED_4,
5453
5454   EL_MM_ENVELOPE_1,
5455   EL_MM_ENVELOPE_2,
5456   EL_MM_ENVELOPE_3,
5457   EL_MM_ENVELOPE_4
5458 };
5459 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
5460 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
5461 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
5462 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
5463
5464 static int editor_hl_deflektor[] =
5465 {
5466   EL_INTERNAL_CASCADE_DF_ACTIVE,
5467   EL_CHAR('D'),
5468   EL_CHAR('F'),
5469   EL_EMPTY,
5470 };
5471
5472 static int editor_el_deflektor[] =
5473 {
5474   EL_DF_LASER_RIGHT,
5475   EL_DF_LASER_UP,
5476   EL_DF_LASER_LEFT,
5477   EL_DF_LASER_DOWN,
5478
5479   EL_DF_RECEIVER_RIGHT,
5480   EL_DF_RECEIVER_UP,
5481   EL_DF_RECEIVER_LEFT,
5482   EL_DF_RECEIVER_DOWN,
5483
5484   EL_DF_MIRROR_START,
5485   EL_DF_MIRROR_ROTATING_START,
5486   EL_DF_MIRROR_FIXED_START,
5487   EL_DF_CELL,
5488
5489   EL_DF_FIBRE_OPTIC_RED_1,
5490   EL_DF_FIBRE_OPTIC_YELLOW_1,
5491   EL_DF_FIBRE_OPTIC_GREEN_1,
5492   EL_DF_FIBRE_OPTIC_BLUE_1,
5493
5494   EL_DF_STEEL_GRID_FIXED_START,
5495   EL_DF_STEEL_GRID_ROTATING_START,
5496   EL_DF_WOODEN_GRID_FIXED_START,
5497   EL_DF_WOODEN_GRID_ROTATING_START,
5498
5499   EL_DF_STEEL_WALL,
5500   EL_DF_WOODEN_WALL,
5501   EL_DF_REFRACTOR,
5502   EL_DF_MINE,
5503
5504   EL_DF_SLOPE_1,
5505   EL_DF_SLOPE_2,
5506   EL_DF_SLOPE_3,
5507   EL_DF_SLOPE_4
5508 };
5509 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
5510 static int *editor_el_deflektor_ptr = editor_el_deflektor;
5511 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
5512 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
5513
5514 static int editor_hl_chars[] =
5515 {
5516   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
5517   EL_CHAR('T'),
5518   EL_CHAR('X'),
5519   EL_CHAR('T'),
5520 };
5521
5522 static int editor_el_chars[] =
5523 {
5524   EL_CHAR(' '),
5525   EL_CHAR('!'),
5526   EL_CHAR('"'),
5527   EL_CHAR('#'),
5528
5529   EL_CHAR('$'),
5530   EL_CHAR('%'),
5531   EL_CHAR('&'),
5532   EL_CHAR('\''),
5533
5534   EL_CHAR('('),
5535   EL_CHAR(')'),
5536   EL_CHAR('*'),
5537   EL_CHAR('+'),
5538
5539   EL_CHAR(','),
5540   EL_CHAR('-'),
5541   EL_CHAR('.'),
5542   EL_CHAR('/'),
5543
5544   EL_CHAR('0'),
5545   EL_CHAR('1'),
5546   EL_CHAR('2'),
5547   EL_CHAR('3'),
5548
5549   EL_CHAR('4'),
5550   EL_CHAR('5'),
5551   EL_CHAR('6'),
5552   EL_CHAR('7'),
5553
5554   EL_CHAR('8'),
5555   EL_CHAR('9'),
5556   EL_CHAR(':'),
5557   EL_CHAR(';'),
5558
5559   EL_CHAR('<'),
5560   EL_CHAR('='),
5561   EL_CHAR('>'),
5562   EL_CHAR('?'),
5563
5564   EL_CHAR('@'),
5565   EL_CHAR('A'),
5566   EL_CHAR('B'),
5567   EL_CHAR('C'),
5568
5569   EL_CHAR('D'),
5570   EL_CHAR('E'),
5571   EL_CHAR('F'),
5572   EL_CHAR('G'),
5573
5574   EL_CHAR('H'),
5575   EL_CHAR('I'),
5576   EL_CHAR('J'),
5577   EL_CHAR('K'),
5578
5579   EL_CHAR('L'),
5580   EL_CHAR('M'),
5581   EL_CHAR('N'),
5582   EL_CHAR('O'),
5583
5584   EL_CHAR('P'),
5585   EL_CHAR('Q'),
5586   EL_CHAR('R'),
5587   EL_CHAR('S'),
5588
5589   EL_CHAR('T'),
5590   EL_CHAR('U'),
5591   EL_CHAR('V'),
5592   EL_CHAR('W'),
5593
5594   EL_CHAR('X'),
5595   EL_CHAR('Y'),
5596   EL_CHAR('Z'),
5597   EL_CHAR('['),
5598
5599   EL_CHAR('\\'),
5600   EL_CHAR(']'),
5601   EL_CHAR('^'),
5602   EL_CHAR('_'),
5603
5604   EL_CHAR(CHAR_BYTE_COPYRIGHT),
5605   EL_CHAR(CHAR_BYTE_UMLAUT_A),
5606   EL_CHAR(CHAR_BYTE_UMLAUT_O),
5607   EL_CHAR(CHAR_BYTE_UMLAUT_U),
5608
5609   EL_CHAR(CHAR_BYTE_DEGREE),
5610   EL_CHAR(CHAR_BYTE_REGISTERED),
5611   EL_CHAR(FONT_ASCII_CURSOR),
5612   EL_CHAR(FONT_ASCII_BUTTON),
5613
5614   EL_CHAR(FONT_ASCII_UP),
5615   EL_CHAR(FONT_ASCII_DOWN),
5616   EL_CHAR(' '),
5617   EL_CHAR(' ')
5618 };
5619 static int *editor_hl_chars_ptr = editor_hl_chars;
5620 static int *editor_el_chars_ptr = editor_el_chars;
5621 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
5622 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
5623
5624 static int editor_hl_steel_chars[] =
5625 {
5626   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
5627   EL_STEEL_CHAR('T'),
5628   EL_STEEL_CHAR('X'),
5629   EL_STEEL_CHAR('T'),
5630 };
5631
5632 static int editor_el_steel_chars[] =
5633 {
5634   EL_STEEL_CHAR(' '),
5635   EL_STEEL_CHAR('!'),
5636   EL_STEEL_CHAR('"'),
5637   EL_STEEL_CHAR('#'),
5638
5639   EL_STEEL_CHAR('$'),
5640   EL_STEEL_CHAR('%'),
5641   EL_STEEL_CHAR('&'),
5642   EL_STEEL_CHAR('\''),
5643
5644   EL_STEEL_CHAR('('),
5645   EL_STEEL_CHAR(')'),
5646   EL_STEEL_CHAR('*'),
5647   EL_STEEL_CHAR('+'),
5648
5649   EL_STEEL_CHAR(','),
5650   EL_STEEL_CHAR('-'),
5651   EL_STEEL_CHAR('.'),
5652   EL_STEEL_CHAR('/'),
5653
5654   EL_STEEL_CHAR('0'),
5655   EL_STEEL_CHAR('1'),
5656   EL_STEEL_CHAR('2'),
5657   EL_STEEL_CHAR('3'),
5658
5659   EL_STEEL_CHAR('4'),
5660   EL_STEEL_CHAR('5'),
5661   EL_STEEL_CHAR('6'),
5662   EL_STEEL_CHAR('7'),
5663
5664   EL_STEEL_CHAR('8'),
5665   EL_STEEL_CHAR('9'),
5666   EL_STEEL_CHAR(':'),
5667   EL_STEEL_CHAR(';'),
5668
5669   EL_STEEL_CHAR('<'),
5670   EL_STEEL_CHAR('='),
5671   EL_STEEL_CHAR('>'),
5672   EL_STEEL_CHAR('?'),
5673
5674   EL_STEEL_CHAR('@'),
5675   EL_STEEL_CHAR('A'),
5676   EL_STEEL_CHAR('B'),
5677   EL_STEEL_CHAR('C'),
5678
5679   EL_STEEL_CHAR('D'),
5680   EL_STEEL_CHAR('E'),
5681   EL_STEEL_CHAR('F'),
5682   EL_STEEL_CHAR('G'),
5683
5684   EL_STEEL_CHAR('H'),
5685   EL_STEEL_CHAR('I'),
5686   EL_STEEL_CHAR('J'),
5687   EL_STEEL_CHAR('K'),
5688
5689   EL_STEEL_CHAR('L'),
5690   EL_STEEL_CHAR('M'),
5691   EL_STEEL_CHAR('N'),
5692   EL_STEEL_CHAR('O'),
5693
5694   EL_STEEL_CHAR('P'),
5695   EL_STEEL_CHAR('Q'),
5696   EL_STEEL_CHAR('R'),
5697   EL_STEEL_CHAR('S'),
5698
5699   EL_STEEL_CHAR('T'),
5700   EL_STEEL_CHAR('U'),
5701   EL_STEEL_CHAR('V'),
5702   EL_STEEL_CHAR('W'),
5703
5704   EL_STEEL_CHAR('X'),
5705   EL_STEEL_CHAR('Y'),
5706   EL_STEEL_CHAR('Z'),
5707   EL_STEEL_CHAR('['),
5708
5709   EL_STEEL_CHAR('\\'),
5710   EL_STEEL_CHAR(']'),
5711   EL_STEEL_CHAR('^'),
5712   EL_STEEL_CHAR('_'),
5713
5714   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
5715   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
5716   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
5717   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
5718
5719   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
5720   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
5721   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
5722   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
5723
5724   EL_STEEL_CHAR(FONT_ASCII_UP),
5725   EL_STEEL_CHAR(FONT_ASCII_DOWN),
5726   EL_STEEL_CHAR(' '),
5727   EL_STEEL_CHAR(' ')
5728 };
5729 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
5730 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
5731 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
5732 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
5733
5734 static int editor_hl_custom[] =
5735 {
5736   EL_INTERNAL_CASCADE_CE_ACTIVE,
5737   EL_CHAR('C'),
5738   EL_CHAR('E'),
5739   EL_EMPTY,
5740 };
5741
5742 static int editor_el_custom[] =
5743 {
5744   EL_CUSTOM_START + 0,
5745   EL_CUSTOM_START + 1,
5746   EL_CUSTOM_START + 2,
5747   EL_CUSTOM_START + 3,
5748
5749   EL_CUSTOM_START + 4,
5750   EL_CUSTOM_START + 5,
5751   EL_CUSTOM_START + 6,
5752   EL_CUSTOM_START + 7,
5753
5754   EL_CUSTOM_START + 8,
5755   EL_CUSTOM_START + 9,
5756   EL_CUSTOM_START + 10,
5757   EL_CUSTOM_START + 11,
5758
5759   EL_CUSTOM_START + 12,
5760   EL_CUSTOM_START + 13,
5761   EL_CUSTOM_START + 14,
5762   EL_CUSTOM_START + 15,
5763
5764   EL_CUSTOM_START + 16,
5765   EL_CUSTOM_START + 17,
5766   EL_CUSTOM_START + 18,
5767   EL_CUSTOM_START + 19,
5768
5769   EL_CUSTOM_START + 20,
5770   EL_CUSTOM_START + 21,
5771   EL_CUSTOM_START + 22,
5772   EL_CUSTOM_START + 23,
5773
5774   EL_CUSTOM_START + 24,
5775   EL_CUSTOM_START + 25,
5776   EL_CUSTOM_START + 26,
5777   EL_CUSTOM_START + 27,
5778
5779   EL_CUSTOM_START + 28,
5780   EL_CUSTOM_START + 29,
5781   EL_CUSTOM_START + 30,
5782   EL_CUSTOM_START + 31,
5783
5784   EL_CUSTOM_START + 32,
5785   EL_CUSTOM_START + 33,
5786   EL_CUSTOM_START + 34,
5787   EL_CUSTOM_START + 35,
5788
5789   EL_CUSTOM_START + 36,
5790   EL_CUSTOM_START + 37,
5791   EL_CUSTOM_START + 38,
5792   EL_CUSTOM_START + 39,
5793
5794   EL_CUSTOM_START + 40,
5795   EL_CUSTOM_START + 41,
5796   EL_CUSTOM_START + 42,
5797   EL_CUSTOM_START + 43,
5798
5799   EL_CUSTOM_START + 44,
5800   EL_CUSTOM_START + 45,
5801   EL_CUSTOM_START + 46,
5802   EL_CUSTOM_START + 47,
5803
5804   EL_CUSTOM_START + 48,
5805   EL_CUSTOM_START + 49,
5806   EL_CUSTOM_START + 50,
5807   EL_CUSTOM_START + 51,
5808
5809   EL_CUSTOM_START + 52,
5810   EL_CUSTOM_START + 53,
5811   EL_CUSTOM_START + 54,
5812   EL_CUSTOM_START + 55,
5813
5814   EL_CUSTOM_START + 56,
5815   EL_CUSTOM_START + 57,
5816   EL_CUSTOM_START + 58,
5817   EL_CUSTOM_START + 59,
5818
5819   EL_CUSTOM_START + 60,
5820   EL_CUSTOM_START + 61,
5821   EL_CUSTOM_START + 62,
5822   EL_CUSTOM_START + 63,
5823
5824   EL_CUSTOM_START + 64,
5825   EL_CUSTOM_START + 65,
5826   EL_CUSTOM_START + 66,
5827   EL_CUSTOM_START + 67,
5828
5829   EL_CUSTOM_START + 68,
5830   EL_CUSTOM_START + 69,
5831   EL_CUSTOM_START + 70,
5832   EL_CUSTOM_START + 71,
5833
5834   EL_CUSTOM_START + 72,
5835   EL_CUSTOM_START + 73,
5836   EL_CUSTOM_START + 74,
5837   EL_CUSTOM_START + 75,
5838
5839   EL_CUSTOM_START + 76,
5840   EL_CUSTOM_START + 77,
5841   EL_CUSTOM_START + 78,
5842   EL_CUSTOM_START + 79,
5843
5844   EL_CUSTOM_START + 80,
5845   EL_CUSTOM_START + 81,
5846   EL_CUSTOM_START + 82,
5847   EL_CUSTOM_START + 83,
5848
5849   EL_CUSTOM_START + 84,
5850   EL_CUSTOM_START + 85,
5851   EL_CUSTOM_START + 86,
5852   EL_CUSTOM_START + 87,
5853
5854   EL_CUSTOM_START + 88,
5855   EL_CUSTOM_START + 89,
5856   EL_CUSTOM_START + 90,
5857   EL_CUSTOM_START + 91,
5858
5859   EL_CUSTOM_START + 92,
5860   EL_CUSTOM_START + 93,
5861   EL_CUSTOM_START + 94,
5862   EL_CUSTOM_START + 95,
5863
5864   EL_CUSTOM_START + 96,
5865   EL_CUSTOM_START + 97,
5866   EL_CUSTOM_START + 98,
5867   EL_CUSTOM_START + 99,
5868
5869   EL_CUSTOM_START + 100,
5870   EL_CUSTOM_START + 101,
5871   EL_CUSTOM_START + 102,
5872   EL_CUSTOM_START + 103,
5873
5874   EL_CUSTOM_START + 104,
5875   EL_CUSTOM_START + 105,
5876   EL_CUSTOM_START + 106,
5877   EL_CUSTOM_START + 107,
5878
5879   EL_CUSTOM_START + 108,
5880   EL_CUSTOM_START + 109,
5881   EL_CUSTOM_START + 110,
5882   EL_CUSTOM_START + 111,
5883
5884   EL_CUSTOM_START + 112,
5885   EL_CUSTOM_START + 113,
5886   EL_CUSTOM_START + 114,
5887   EL_CUSTOM_START + 115,
5888
5889   EL_CUSTOM_START + 116,
5890   EL_CUSTOM_START + 117,
5891   EL_CUSTOM_START + 118,
5892   EL_CUSTOM_START + 119,
5893
5894   EL_CUSTOM_START + 120,
5895   EL_CUSTOM_START + 121,
5896   EL_CUSTOM_START + 122,
5897   EL_CUSTOM_START + 123,
5898
5899   EL_CUSTOM_START + 124,
5900   EL_CUSTOM_START + 125,
5901   EL_CUSTOM_START + 126,
5902   EL_CUSTOM_START + 127,
5903
5904   EL_CUSTOM_START + 128,
5905   EL_CUSTOM_START + 129,
5906   EL_CUSTOM_START + 130,
5907   EL_CUSTOM_START + 131,
5908
5909   EL_CUSTOM_START + 132,
5910   EL_CUSTOM_START + 133,
5911   EL_CUSTOM_START + 134,
5912   EL_CUSTOM_START + 135,
5913
5914   EL_CUSTOM_START + 136,
5915   EL_CUSTOM_START + 137,
5916   EL_CUSTOM_START + 138,
5917   EL_CUSTOM_START + 139,
5918
5919   EL_CUSTOM_START + 140,
5920   EL_CUSTOM_START + 141,
5921   EL_CUSTOM_START + 142,
5922   EL_CUSTOM_START + 143,
5923
5924   EL_CUSTOM_START + 144,
5925   EL_CUSTOM_START + 145,
5926   EL_CUSTOM_START + 146,
5927   EL_CUSTOM_START + 147,
5928
5929   EL_CUSTOM_START + 148,
5930   EL_CUSTOM_START + 149,
5931   EL_CUSTOM_START + 150,
5932   EL_CUSTOM_START + 151,
5933
5934   EL_CUSTOM_START + 152,
5935   EL_CUSTOM_START + 153,
5936   EL_CUSTOM_START + 154,
5937   EL_CUSTOM_START + 155,
5938
5939   EL_CUSTOM_START + 156,
5940   EL_CUSTOM_START + 157,
5941   EL_CUSTOM_START + 158,
5942   EL_CUSTOM_START + 159,
5943
5944   EL_CUSTOM_START + 160,
5945   EL_CUSTOM_START + 161,
5946   EL_CUSTOM_START + 162,
5947   EL_CUSTOM_START + 163,
5948
5949   EL_CUSTOM_START + 164,
5950   EL_CUSTOM_START + 165,
5951   EL_CUSTOM_START + 166,
5952   EL_CUSTOM_START + 167,
5953
5954   EL_CUSTOM_START + 168,
5955   EL_CUSTOM_START + 169,
5956   EL_CUSTOM_START + 170,
5957   EL_CUSTOM_START + 171,
5958
5959   EL_CUSTOM_START + 172,
5960   EL_CUSTOM_START + 173,
5961   EL_CUSTOM_START + 174,
5962   EL_CUSTOM_START + 175,
5963
5964   EL_CUSTOM_START + 176,
5965   EL_CUSTOM_START + 177,
5966   EL_CUSTOM_START + 178,
5967   EL_CUSTOM_START + 179,
5968
5969   EL_CUSTOM_START + 180,
5970   EL_CUSTOM_START + 181,
5971   EL_CUSTOM_START + 182,
5972   EL_CUSTOM_START + 183,
5973
5974   EL_CUSTOM_START + 184,
5975   EL_CUSTOM_START + 185,
5976   EL_CUSTOM_START + 186,
5977   EL_CUSTOM_START + 187,
5978
5979   EL_CUSTOM_START + 188,
5980   EL_CUSTOM_START + 189,
5981   EL_CUSTOM_START + 190,
5982   EL_CUSTOM_START + 191,
5983
5984   EL_CUSTOM_START + 192,
5985   EL_CUSTOM_START + 193,
5986   EL_CUSTOM_START + 194,
5987   EL_CUSTOM_START + 195,
5988
5989   EL_CUSTOM_START + 196,
5990   EL_CUSTOM_START + 197,
5991   EL_CUSTOM_START + 198,
5992   EL_CUSTOM_START + 199,
5993
5994   EL_CUSTOM_START + 200,
5995   EL_CUSTOM_START + 201,
5996   EL_CUSTOM_START + 202,
5997   EL_CUSTOM_START + 203,
5998
5999   EL_CUSTOM_START + 204,
6000   EL_CUSTOM_START + 205,
6001   EL_CUSTOM_START + 206,
6002   EL_CUSTOM_START + 207,
6003
6004   EL_CUSTOM_START + 208,
6005   EL_CUSTOM_START + 209,
6006   EL_CUSTOM_START + 210,
6007   EL_CUSTOM_START + 211,
6008
6009   EL_CUSTOM_START + 212,
6010   EL_CUSTOM_START + 213,
6011   EL_CUSTOM_START + 214,
6012   EL_CUSTOM_START + 215,
6013
6014   EL_CUSTOM_START + 216,
6015   EL_CUSTOM_START + 217,
6016   EL_CUSTOM_START + 218,
6017   EL_CUSTOM_START + 219,
6018
6019   EL_CUSTOM_START + 220,
6020   EL_CUSTOM_START + 221,
6021   EL_CUSTOM_START + 222,
6022   EL_CUSTOM_START + 223,
6023
6024   EL_CUSTOM_START + 224,
6025   EL_CUSTOM_START + 225,
6026   EL_CUSTOM_START + 226,
6027   EL_CUSTOM_START + 227,
6028
6029   EL_CUSTOM_START + 228,
6030   EL_CUSTOM_START + 229,
6031   EL_CUSTOM_START + 230,
6032   EL_CUSTOM_START + 231,
6033
6034   EL_CUSTOM_START + 232,
6035   EL_CUSTOM_START + 233,
6036   EL_CUSTOM_START + 234,
6037   EL_CUSTOM_START + 235,
6038
6039   EL_CUSTOM_START + 236,
6040   EL_CUSTOM_START + 237,
6041   EL_CUSTOM_START + 238,
6042   EL_CUSTOM_START + 239,
6043
6044   EL_CUSTOM_START + 240,
6045   EL_CUSTOM_START + 241,
6046   EL_CUSTOM_START + 242,
6047   EL_CUSTOM_START + 243,
6048
6049   EL_CUSTOM_START + 244,
6050   EL_CUSTOM_START + 245,
6051   EL_CUSTOM_START + 246,
6052   EL_CUSTOM_START + 247,
6053
6054   EL_CUSTOM_START + 248,
6055   EL_CUSTOM_START + 249,
6056   EL_CUSTOM_START + 250,
6057   EL_CUSTOM_START + 251,
6058
6059   EL_CUSTOM_START + 252,
6060   EL_CUSTOM_START + 253,
6061   EL_CUSTOM_START + 254,
6062   EL_CUSTOM_START + 255
6063 };
6064 static int *editor_hl_custom_ptr = editor_hl_custom;
6065 static int *editor_el_custom_ptr = editor_el_custom;
6066 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
6067 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
6068
6069 static int editor_hl_group[] =
6070 {
6071   EL_INTERNAL_CASCADE_GE_ACTIVE,
6072   EL_CHAR('G'),
6073   EL_CHAR('E'),
6074   EL_EMPTY,
6075 };
6076
6077 static int editor_el_group[] =
6078 {
6079   EL_GROUP_START + 0,
6080   EL_GROUP_START + 1,
6081   EL_GROUP_START + 2,
6082   EL_GROUP_START + 3,
6083
6084   EL_GROUP_START + 4,
6085   EL_GROUP_START + 5,
6086   EL_GROUP_START + 6,
6087   EL_GROUP_START + 7,
6088
6089   EL_GROUP_START + 8,
6090   EL_GROUP_START + 9,
6091   EL_GROUP_START + 10,
6092   EL_GROUP_START + 11,
6093
6094   EL_GROUP_START + 12,
6095   EL_GROUP_START + 13,
6096   EL_GROUP_START + 14,
6097   EL_GROUP_START + 15,
6098
6099   EL_GROUP_START + 16,
6100   EL_GROUP_START + 17,
6101   EL_GROUP_START + 18,
6102   EL_GROUP_START + 19,
6103
6104   EL_GROUP_START + 20,
6105   EL_GROUP_START + 21,
6106   EL_GROUP_START + 22,
6107   EL_GROUP_START + 23,
6108
6109   EL_GROUP_START + 24,
6110   EL_GROUP_START + 25,
6111   EL_GROUP_START + 26,
6112   EL_GROUP_START + 27,
6113
6114   EL_GROUP_START + 28,
6115   EL_GROUP_START + 29,
6116   EL_GROUP_START + 30,
6117   EL_GROUP_START + 31
6118 };
6119 static int *editor_hl_group_ptr = editor_hl_group;
6120 static int *editor_el_group_ptr = editor_el_group;
6121 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
6122 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
6123
6124 static int editor_hl_empty_space[] =
6125 {
6126   EL_INTERNAL_CASCADE_ES_ACTIVE,
6127   EL_CHAR('E'),
6128   EL_CHAR('S'),
6129   EL_EMPTY,
6130 };
6131
6132 static int editor_el_empty_space[] =
6133 {
6134   EL_EMPTY_SPACE_1,
6135   EL_EMPTY_SPACE_2,
6136   EL_EMPTY_SPACE_3,
6137   EL_EMPTY_SPACE_4,
6138
6139   EL_EMPTY_SPACE_5,
6140   EL_EMPTY_SPACE_6,
6141   EL_EMPTY_SPACE_7,
6142   EL_EMPTY_SPACE_8,
6143
6144   EL_EMPTY_SPACE_9,
6145   EL_EMPTY_SPACE_10,
6146   EL_EMPTY_SPACE_11,
6147   EL_EMPTY_SPACE_12,
6148
6149   EL_EMPTY_SPACE_13,
6150   EL_EMPTY_SPACE_14,
6151   EL_EMPTY_SPACE_15,
6152   EL_EMPTY_SPACE_16
6153 };
6154 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
6155 static int *editor_el_empty_space_ptr = editor_el_empty_space;
6156 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
6157 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
6158
6159 static int editor_hl_reference[] =
6160 {
6161   EL_INTERNAL_CASCADE_REF_ACTIVE,
6162   EL_CHAR('R'),
6163   EL_CHAR('E'),
6164   EL_CHAR('F')
6165 };
6166
6167 static int editor_el_reference[] =
6168 {
6169   EL_TRIGGER_PLAYER,
6170   EL_TRIGGER_ELEMENT,
6171   EL_TRIGGER_CE_VALUE,
6172   EL_TRIGGER_CE_SCORE,
6173
6174   EL_SELF,
6175   EL_ANY_ELEMENT,
6176   EL_CURRENT_CE_VALUE,
6177   EL_CURRENT_CE_SCORE,
6178
6179   EL_PREV_CE_8,
6180   EL_PREV_CE_7,
6181   EL_PREV_CE_6,
6182   EL_PREV_CE_5,
6183
6184   EL_PREV_CE_4,
6185   EL_PREV_CE_3,
6186   EL_PREV_CE_2,
6187   EL_PREV_CE_1,
6188
6189   EL_NEXT_CE_1,
6190   EL_NEXT_CE_2,
6191   EL_NEXT_CE_3,
6192   EL_NEXT_CE_4,
6193
6194   EL_NEXT_CE_5,
6195   EL_NEXT_CE_6,
6196   EL_NEXT_CE_7,
6197   EL_NEXT_CE_8,
6198 };
6199 static int *editor_hl_reference_ptr = editor_hl_reference;
6200 static int *editor_el_reference_ptr = editor_el_reference;
6201 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
6202 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
6203
6204 static int editor_hl_user_defined[] =
6205 {
6206   EL_INTERNAL_CASCADE_USER_ACTIVE,
6207   EL_CHAR('M'),
6208   EL_CHAR('Y'),
6209   EL_EMPTY,
6210 };
6211
6212 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
6213 static int *editor_el_user_defined_ptr = NULL;
6214 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
6215 static int num_editor_el_user_defined = 0;
6216
6217 static int editor_hl_dynamic[] =
6218 {
6219   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
6220   EL_CHAR('U'),
6221   EL_CHAR('S'),
6222   EL_CHAR('E'),
6223 };
6224
6225 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
6226 static int *editor_el_dynamic_ptr = NULL;
6227 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
6228 static int num_editor_el_dynamic = 0;
6229
6230 static int editor_hl_empty[] = { EL_EMPTY };
6231 static int *editor_el_empty = NULL;     // dynamically allocated
6232
6233 static int *editor_hl_empty_ptr = editor_hl_empty;
6234 static int *editor_el_empty_ptr = NULL;
6235 static int num_editor_hl_empty = 0;
6236 static int num_editor_el_empty = 0;     // dynamically determined, if needed
6237
6238 static boolean use_el_empty = FALSE;
6239
6240 static int *editor_elements = NULL;     // dynamically allocated
6241 static int num_editor_elements = 0;     // dynamically determined
6242
6243 static boolean setup_editor_cascade_never = FALSE;
6244
6245 static boolean setup_editor_el_players                  = TRUE;
6246 static boolean setup_editor_el_boulderdash              = TRUE;
6247 static boolean setup_editor_el_boulderdash_native       = TRUE;
6248 static boolean setup_editor_el_emerald_mine             = TRUE;
6249 static boolean setup_editor_el_emerald_mine_club        = TRUE;
6250 static boolean setup_editor_el_more                     = TRUE;
6251 static boolean setup_editor_el_sokoban                  = TRUE;
6252 static boolean setup_editor_el_supaplex                 = TRUE;
6253 static boolean setup_editor_el_diamond_caves            = TRUE;
6254 static boolean setup_editor_el_dx_boulderdash           = TRUE;
6255 static boolean setup_editor_el_mirror_magic             = TRUE;
6256 static boolean setup_editor_el_deflektor                = TRUE;
6257 static boolean setup_editor_el_chars                    = TRUE;
6258 static boolean setup_editor_el_steel_chars              = TRUE;
6259 static boolean setup_editor_el_custom                   = TRUE;
6260 static boolean setup_editor_el_user_defined             = TRUE;
6261 static boolean setup_editor_el_dynamic                  = TRUE;
6262
6263 static int editor_hl_unused[] = { EL_EMPTY };
6264 static int *editor_hl_unused_ptr = editor_hl_unused;
6265 static int num_editor_hl_unused = 0;
6266
6267 static struct
6268 {
6269   boolean *setup_value;
6270   boolean *setup_cascade_value;
6271
6272   int **headline_list;
6273   int *headline_list_size;
6274
6275   int **element_list;
6276   int *element_list_size;
6277
6278   boolean last_setup_value;
6279 }
6280 editor_elements_info[] =
6281 {
6282   {
6283     &setup_editor_el_players,
6284     &setup_editor_cascade_never,
6285     &editor_hl_unused_ptr,              &num_editor_hl_unused,
6286     &editor_el_players_ptr,             &num_editor_el_players
6287   },
6288   {
6289     &setup_editor_el_boulderdash,
6290     &setup.editor_cascade.el_bd,
6291     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
6292     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
6293   },
6294   {
6295     &setup_editor_el_boulderdash_native,
6296     &setup.editor_cascade.el_bd_native,
6297     &editor_hl_boulderdash_native_ptr,  &num_editor_hl_boulderdash_native,
6298     &editor_el_boulderdash_native_ptr,  &num_editor_el_boulderdash_native
6299   },
6300   {
6301     &setup_editor_el_emerald_mine,
6302     &setup.editor_cascade.el_em,
6303     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
6304     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
6305   },
6306   {
6307     &setup_editor_el_emerald_mine_club,
6308     &setup.editor_cascade.el_emc,
6309     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
6310     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
6311   },
6312   {
6313     &setup_editor_el_more,
6314     &setup.editor_cascade.el_rnd,
6315     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
6316     &editor_el_rnd_ptr,                 &num_editor_el_rnd
6317   },
6318   {
6319     &setup_editor_el_sokoban,
6320     &setup.editor_cascade.el_sb,
6321     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
6322     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
6323   },
6324   {
6325     &setup_editor_el_supaplex,
6326     &setup.editor_cascade.el_sp,
6327     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
6328     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
6329   },
6330   {
6331     &setup_editor_el_diamond_caves,
6332     &setup.editor_cascade.el_dc,
6333     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
6334     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
6335   },
6336   {
6337     &setup_editor_el_dx_boulderdash,
6338     &setup.editor_cascade.el_dx,
6339     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
6340     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
6341   },
6342   {
6343     &setup_editor_el_mirror_magic,
6344     &setup.editor_cascade.el_mm,
6345     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
6346     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
6347   },
6348   {
6349     &setup_editor_el_deflektor,
6350     &setup.editor_cascade.el_df,
6351     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
6352     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
6353   },
6354   {
6355     &setup_editor_el_chars,
6356     &setup.editor_cascade.el_chars,
6357     &editor_hl_chars_ptr,               &num_editor_hl_chars,
6358     &editor_el_chars_ptr,               &num_editor_el_chars
6359   },
6360   {
6361     &setup_editor_el_steel_chars,
6362     &setup.editor_cascade.el_steel_chars,
6363     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
6364     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
6365   },
6366   {
6367     &setup_editor_el_custom,
6368     &setup.editor_cascade.el_ce,
6369     &editor_hl_custom_ptr,              &num_editor_hl_custom,
6370     &editor_el_custom_ptr,              &num_editor_el_custom
6371   },
6372   {
6373     &setup_editor_el_custom,
6374     &setup.editor_cascade.el_ge,
6375     &editor_hl_group_ptr,               &num_editor_hl_group,
6376     &editor_el_group_ptr,               &num_editor_el_group
6377   },
6378   {
6379     &setup_editor_el_custom,
6380     &setup.editor_cascade.el_es,
6381     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
6382     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
6383   },
6384   {
6385     &setup_editor_el_custom,
6386     &setup.editor_cascade.el_ref,
6387     &editor_hl_reference_ptr,           &num_editor_hl_reference,
6388     &editor_el_reference_ptr,           &num_editor_el_reference
6389   },
6390   {
6391     &setup_editor_el_user_defined,
6392     &setup.editor_cascade.el_user,
6393     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
6394     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
6395   },
6396   {
6397     &setup_editor_el_dynamic,
6398     &setup.editor_cascade.el_dynamic,
6399     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
6400     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
6401   },
6402   {
6403     &use_el_empty,
6404     &use_el_empty,
6405     &editor_hl_empty_ptr,               &num_editor_hl_empty,
6406     &editor_el_empty_ptr,               &num_editor_el_empty,
6407   },
6408   {
6409     NULL,
6410     NULL,
6411     NULL,                               NULL,
6412     NULL,                               NULL
6413   }
6414 };
6415
6416 static struct XY xy_directions[] =
6417 {
6418   { -1,  0 },
6419   { +1,  0 },
6420   {  0, -1 },
6421   {  0, +1 }
6422 };
6423
6424
6425 // ----------------------------------------------------------------------------
6426 // functions
6427 // ----------------------------------------------------------------------------
6428
6429 static int getMaxInfoTextLength(void)
6430 {
6431   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
6432 }
6433
6434 static int getTextWidthForGadget(char *text)
6435 {
6436   if (text == NULL)
6437     return 0;
6438
6439   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
6440 }
6441
6442 static int getTextWidthForDrawingArea(char *text)
6443 {
6444   if (text == NULL)
6445     return 0;
6446
6447   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_BORDER_SIZE);
6448 }
6449
6450 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
6451 {
6452   return (gi->x + gi->width + getTextWidthForGadget(text));
6453 }
6454
6455 static char *getElementInfoText(int element)
6456 {
6457   char *info_text = NULL;
6458
6459   if (element < MAX_NUM_ELEMENTS)
6460   {
6461     if (strlen(element_info[element].description) > 0)
6462       info_text = element_info[element].description;
6463     else if (element_info[element].custom_description != NULL)
6464       info_text = element_info[element].custom_description;
6465     else if (element_info[element].editor_description != NULL)
6466       info_text = element_info[element].editor_description;
6467   }
6468
6469   if (info_text == NULL)
6470     info_text = INFOTEXT_UNKNOWN_ELEMENT;
6471
6472   return info_text;
6473 }
6474
6475 static char *getElementDescriptionFilenameExt(char *basename)
6476 {
6477   char *elements_subdir = ELEMENTS_DIRECTORY;
6478   static char *elements_subdir2 = NULL;
6479   static char *filename = NULL;
6480
6481   if (elements_subdir2 == NULL)
6482     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
6483
6484   checked_free(filename);
6485
6486   // 1st try: look for element description in current level set directory
6487   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
6488   if (fileExists(filename))
6489     return filename;
6490
6491   free(filename);
6492
6493   // 2nd try: look for element description in the game's base directory
6494   filename = getPath3(options.docs_directory, elements_subdir, basename);
6495   if (fileExists(filename))
6496     return filename;
6497
6498   return NULL;
6499 }
6500
6501 static char *getElementDescriptionFilename(int element)
6502 {
6503   char basename[MAX_FILENAME_LEN];
6504   char *filename;
6505
6506   // 1st try: look for element description file for exactly this element
6507   sprintf(basename, "%s.txt", element_info[element].token_name);
6508   filename = getElementDescriptionFilenameExt(basename);
6509   if (filename != NULL)
6510     return filename;
6511
6512   // 2nd try: look for element description file for this element's class
6513   sprintf(basename, "%s.txt", element_info[element].class_name);
6514   filename = getElementDescriptionFilenameExt(basename);
6515   if (filename != NULL)
6516     return filename;
6517
6518   // 3rd try: look for generic fallback text file for any element
6519   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
6520   if (filename != NULL)
6521     return filename;
6522
6523   return NULL;
6524 }
6525
6526 static boolean suppressBorderElement(void)
6527 {
6528   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
6529           lev_fieldx <= MAX_ED_FIELDX &&
6530           lev_fieldy <= MAX_ED_FIELDY);
6531 }
6532
6533 static void InitDynamicEditorElementList(int **elements, int *num_elements)
6534 {
6535   boolean element_found[NUM_FILE_ELEMENTS];
6536   int i, x, y;
6537
6538   // initialize list of used elements to "not used"
6539   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6540     element_found[i] = FALSE;
6541
6542   // find all elements used in current level
6543   for (y = 0; y < lev_fieldy; y++)
6544   {
6545     for (x = 0; x < lev_fieldx; x++)
6546     {
6547       if (Tile[x][y] >= NUM_FILE_ELEMENTS)      // should never happen
6548         continue;
6549
6550       if (IS_MM_WALL(Tile[x][y]))
6551         element_found[map_mm_wall_element(Tile[x][y])] = TRUE;
6552       else
6553         element_found[Tile[x][y]] = TRUE;
6554     }
6555   }
6556
6557   *num_elements = 0;
6558
6559   // count number of elements used in current level
6560   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6561     if (element_found[i])
6562       (*num_elements)++;
6563
6564   // add space for up to 3 more elements for padding that may be needed
6565   *num_elements += 3;
6566
6567   // free memory for old list of elements, if needed
6568   checked_free(*elements);
6569
6570   // allocate memory for new list of elements
6571   *elements = checked_malloc(*num_elements * sizeof(int));
6572
6573   *num_elements = 0;
6574
6575   // add all elements used in current level (non-custom/group/empty elements)
6576   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6577     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) ||
6578                               IS_GROUP_ELEMENT(i) ||
6579                               IS_EMPTY_ELEMENT(i)))
6580       (*elements)[(*num_elements)++] = i;
6581
6582   // add all elements used in current level (custom/group/empty elements)
6583   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6584     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) ||
6585                              IS_GROUP_ELEMENT(i) ||
6586                              IS_EMPTY_ELEMENT(i)))
6587       (*elements)[(*num_elements)++] = i;
6588
6589   while (*num_elements % 4)     // pad with empty elements, if needed
6590     (*elements)[(*num_elements)++] = EL_EMPTY;
6591 }
6592
6593 static void ReinitializeElementList_EnableSections(void)
6594 {
6595   // default: enable all element sections
6596
6597   setup_editor_el_players               = TRUE;
6598   setup_editor_el_boulderdash           = TRUE;
6599   setup_editor_el_boulderdash_native    = TRUE;
6600   setup_editor_el_emerald_mine          = TRUE;
6601   setup_editor_el_emerald_mine_club     = TRUE;
6602   setup_editor_el_more                  = TRUE;
6603   setup_editor_el_sokoban               = TRUE;
6604   setup_editor_el_supaplex              = TRUE;
6605   setup_editor_el_diamond_caves         = TRUE;
6606   setup_editor_el_dx_boulderdash        = TRUE;
6607   setup_editor_el_mirror_magic          = TRUE;
6608   setup_editor_el_deflektor             = TRUE;
6609   setup_editor_el_chars                 = TRUE;
6610   setup_editor_el_steel_chars           = TRUE;
6611
6612   setup_editor_el_custom                = TRUE;
6613   setup_editor_el_user_defined          = TRUE;
6614   setup_editor_el_dynamic               = TRUE;
6615
6616   // now disable all element sections not to be displayed
6617
6618   if (!setup.editor.el_classic)
6619   {
6620     setup_editor_el_players             = FALSE;
6621     setup_editor_el_boulderdash         = FALSE;
6622     setup_editor_el_boulderdash_native  = 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
6636   if (!setup.editor.el_custom)
6637   {
6638     setup_editor_el_custom              = FALSE;
6639   }
6640
6641   if (!setup.editor.el_user_defined)
6642   {
6643     setup_editor_el_user_defined        = FALSE;
6644   }
6645
6646   if (!setup.editor.el_dynamic)
6647   {
6648     setup_editor_el_dynamic             = FALSE;
6649   }
6650
6651   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
6652   {
6653     setup_editor_el_boulderdash_native  = FALSE;
6654     setup_editor_el_mirror_magic        = FALSE;
6655     setup_editor_el_deflektor           = FALSE;
6656   }
6657   else if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
6658   {
6659     setup_editor_el_players             = FALSE;
6660     setup_editor_el_boulderdash         = FALSE;
6661     setup_editor_el_emerald_mine        = FALSE;
6662     setup_editor_el_emerald_mine_club   = FALSE;
6663     setup_editor_el_more                = FALSE;
6664     setup_editor_el_sokoban             = FALSE;
6665     setup_editor_el_supaplex            = FALSE;
6666     setup_editor_el_diamond_caves       = FALSE;
6667     setup_editor_el_dx_boulderdash      = FALSE;
6668     setup_editor_el_mirror_magic        = FALSE;
6669     setup_editor_el_deflektor           = FALSE;
6670     setup_editor_el_chars               = FALSE;
6671     setup_editor_el_steel_chars         = FALSE;
6672
6673     setup_editor_el_custom              = FALSE;
6674   }
6675   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
6676   {
6677     setup_editor_el_boulderdash         = FALSE;
6678     setup_editor_el_boulderdash_native  = FALSE;
6679     setup_editor_el_more                = FALSE;
6680     setup_editor_el_sokoban             = FALSE;
6681     setup_editor_el_supaplex            = FALSE;
6682     setup_editor_el_diamond_caves       = FALSE;
6683     setup_editor_el_dx_boulderdash      = FALSE;
6684     setup_editor_el_mirror_magic        = FALSE;
6685     setup_editor_el_deflektor           = FALSE;
6686     setup_editor_el_steel_chars         = FALSE;
6687
6688     setup_editor_el_custom              = FALSE;
6689   }
6690   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
6691   {
6692     setup_editor_el_players             = FALSE;
6693     setup_editor_el_boulderdash         = FALSE;
6694     setup_editor_el_boulderdash_native  = FALSE;
6695     setup_editor_el_emerald_mine        = FALSE;
6696     setup_editor_el_emerald_mine_club   = FALSE;
6697     setup_editor_el_more                = FALSE;
6698     setup_editor_el_sokoban             = FALSE;
6699     setup_editor_el_diamond_caves       = FALSE;
6700     setup_editor_el_dx_boulderdash      = FALSE;
6701     setup_editor_el_mirror_magic        = FALSE;
6702     setup_editor_el_deflektor           = FALSE;
6703     setup_editor_el_chars               = FALSE;
6704     setup_editor_el_steel_chars         = FALSE;
6705
6706     setup_editor_el_custom              = FALSE;
6707   }
6708   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
6709   {
6710     setup_editor_el_players             = FALSE;
6711     setup_editor_el_boulderdash         = FALSE;
6712     setup_editor_el_boulderdash_native  = FALSE;
6713     setup_editor_el_emerald_mine        = FALSE;
6714     setup_editor_el_emerald_mine_club   = FALSE;
6715     setup_editor_el_more                = FALSE;
6716     setup_editor_el_sokoban             = FALSE;
6717     setup_editor_el_supaplex            = FALSE;
6718     setup_editor_el_diamond_caves       = FALSE;
6719     setup_editor_el_dx_boulderdash      = FALSE;
6720     setup_editor_el_steel_chars         = FALSE;
6721
6722     setup_editor_el_custom              = FALSE;
6723   }
6724 }
6725
6726 static void ReinitializeElementList(void)
6727 {
6728   static boolean initialization_needed = TRUE;
6729   int pos = 0;
6730   int i, j;
6731
6732   ReinitializeElementList_EnableSections();
6733
6734   if (initialization_needed)
6735   {
6736     LoadSetup_EditorCascade();          // load last editor cascade state
6737
6738     // initialize editor cascade element from saved cascade state
6739     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6740     {
6741       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
6742       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
6743
6744       if (IS_EDITOR_CASCADE(*cascade_element))
6745         *cascade_element =
6746           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
6747            EL_CASCADE_INACTIVE(*cascade_element));
6748     }
6749
6750     initialization_needed = FALSE;
6751   }
6752
6753   checked_free(editor_elements);
6754
6755   // reload optional user defined element list for each invocation of editor
6756   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
6757                                    &num_editor_el_user_defined);
6758
6759   // initialize dynamic level element list for each invocation of editor
6760   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
6761                                &num_editor_el_dynamic);
6762
6763   // initialize list of empty elements (used for padding, if needed)
6764   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6765     editor_el_empty[i] = EL_EMPTY;
6766
6767   // do some sanity checks for each element from element list
6768   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6769   {
6770     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6771     {
6772       int element = (*editor_elements_info[i].element_list)[j];
6773
6774       if (element >= NUM_FILE_ELEMENTS)
6775         Warn("editor element %d is runtime element", element);
6776
6777       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
6778         Warn("no element description text for element %d", element);
6779     }
6780   }
6781
6782   num_editor_elements = 0;
6783   use_el_empty = FALSE;
6784
6785   // determine size of element list
6786   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6787   {
6788     if (*editor_elements_info[i].setup_value)
6789     {
6790       boolean found_inactive_cascade = FALSE;
6791
6792       if (setup.editor.el_headlines)
6793       {
6794         // required for correct padding of palette headline buttons
6795         if (*editor_elements_info[i].headline_list_size > 0)
6796           num_editor_elements += ED_ELEMENTLIST_COLS;
6797
6798         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6799         {
6800           int element = (*editor_elements_info[i].headline_list)[j];
6801
6802           if (IS_EDITOR_CASCADE_INACTIVE(element))
6803             found_inactive_cascade = TRUE;
6804         }
6805       }
6806
6807       if (found_inactive_cascade)
6808         continue;
6809
6810       // required for correct padding of palette element buttons
6811       int element_list_size = *editor_elements_info[i].element_list_size;
6812       int element_rows =
6813         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6814       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6815
6816       num_editor_elements += element_buttons;
6817     }
6818   }
6819
6820   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
6821   {
6822     // offer at least as many elements as element buttons exist
6823     use_el_empty = TRUE;
6824     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
6825
6826     num_editor_elements += num_editor_el_empty;
6827   }
6828   else
6829   {
6830     num_editor_el_empty = 0;
6831   }
6832
6833   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
6834
6835   // fill element list
6836   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6837   {
6838     boolean found_inactive_cascade = FALSE;
6839
6840     if (*editor_elements_info[i].setup_value)
6841     {
6842       if (setup.editor.el_headlines)
6843       {
6844         // required for correct padding of palette headline buttons
6845         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
6846                              ED_ELEMENTLIST_COLS : 0);
6847
6848         for (j = 0; j < headline_size; j++)
6849         {
6850           // use empty elements for padding of palette headline buttons
6851           int element = (j < *editor_elements_info[i].headline_list_size ?
6852                          (*editor_elements_info[i].headline_list)[j] :
6853                          editor_el_empty[0]);
6854
6855           editor_elements[pos++] = element;
6856
6857           if (IS_EDITOR_CASCADE_INACTIVE(element))
6858             found_inactive_cascade = TRUE;
6859         }
6860       }
6861
6862       if (found_inactive_cascade)
6863         continue;
6864
6865       // required for correct padding of palette element buttons
6866       int element_list_size = *editor_elements_info[i].element_list_size;
6867       int element_rows =
6868         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6869       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6870
6871       // copy all elements from element list
6872       for (j = 0; j < element_list_size; j++)
6873         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
6874
6875       // use empty elements for padding of palette element buttons
6876       for (j = 0; j < element_buttons - element_list_size; j++)
6877         editor_elements[pos++] = editor_el_empty[0];
6878     }
6879   }
6880
6881   // (this function is also called before editor gadgets are initialized!)
6882   AdjustElementListScrollbar();
6883 }
6884
6885 void PrintEditorElementList(void)
6886 {
6887   boolean *stop = &setup_editor_el_user_defined;
6888   int i, j;
6889
6890   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
6891   {
6892     int cascade_element = (*editor_elements_info[i].headline_list)[0];
6893
6894     if (IS_EDITOR_CASCADE(cascade_element))
6895     {
6896       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
6897       char *headline = element_info[cascade_element_show].editor_description;
6898
6899       PrintLineWithPrefix("# ", "-", 77);
6900       Print("# %s\n", headline);
6901       PrintLineWithPrefix("# ", "-", 77);
6902     }
6903
6904     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6905     {
6906       int element = (*editor_elements_info[i].headline_list)[j];
6907
6908       if (IS_EDITOR_CASCADE(element))
6909         element = EL_CHAR_MINUS;
6910
6911       Print("# %s\n", element_info[element].token_name);
6912     }
6913
6914     if (j > 0)
6915       Print("#\n");
6916
6917     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6918     {
6919       int element = (*editor_elements_info[i].element_list)[j];
6920
6921       Print("# %s\n", element_info[element].token_name);
6922     }
6923
6924     if (j > 0)
6925       Print("#\n");
6926   }
6927 }
6928
6929 static void ReinitializeElementListButtons(void)
6930 {
6931   static boolean last_setup_value_headlines = FALSE;
6932   static boolean initialization_needed = TRUE;
6933   int i;
6934
6935   if (!initialization_needed)   // check if editor element setup has changed
6936   {
6937     if (last_setup_value_headlines != setup.editor.el_headlines)
6938       initialization_needed = TRUE;
6939
6940     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6941       if (editor_elements_info[i].last_setup_value !=
6942           *editor_elements_info[i].setup_value)
6943         initialization_needed = TRUE;
6944   }
6945
6946   if (!initialization_needed)
6947     return;
6948
6949   FreeLevelEditorGadgets();
6950   CreateLevelEditorGadgets();
6951
6952   // store current setup values for next invocation of this function
6953   last_setup_value_headlines = setup.editor.el_headlines;
6954   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6955     editor_elements_info[i].last_setup_value =
6956       *editor_elements_info[i].setup_value;
6957
6958   initialization_needed = FALSE;
6959 }
6960
6961 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
6962                               boolean input)
6963 {
6964   int border_graphic =
6965     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
6966   struct GraphicInfo *g = &graphic_info[border_graphic];
6967   Bitmap *src_bitmap = g->bitmap;
6968   int src_x = g->src_x;
6969   int src_y = g->src_y;
6970   int border_size = g->border_size;
6971   int border_xpos = g->width  - border_size;
6972   int border_ypos = g->height - border_size;
6973   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6974   int i;
6975
6976   BlitBitmap(src_bitmap, drawto, src_x, src_y,
6977              border_size, border_size,
6978              dest_x - border_size, dest_y - border_size);
6979   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
6980              border_size, border_size,
6981              dest_x + width, dest_y - border_size);
6982   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
6983              border_size, border_size,
6984              dest_x - border_size, dest_y + height);
6985   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
6986              border_size, border_size,
6987              dest_x + width, dest_y + height);
6988
6989   for (i = 0; i < width / tilesize; i++)
6990   {
6991     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
6992                tilesize, border_size,
6993                dest_x + i * tilesize, dest_y - border_size);
6994     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
6995                tilesize, border_size,
6996                dest_x + i * tilesize, dest_y + height);
6997   }
6998
6999   for (i = 0; i < height / tilesize; i++)
7000   {
7001     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
7002                border_size, tilesize,
7003                dest_x - border_size, dest_y + i * tilesize);
7004     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
7005                border_size, tilesize,
7006                dest_x + width, dest_y + i * tilesize);
7007   }
7008
7009   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
7010 }
7011
7012 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
7013 {
7014   int xsize_tile = MAX(ed_tilesize, xsize);
7015   int ysize_tile = MAX(ed_tilesize, ysize);
7016   int xsize_full = xsize + 1;
7017   int ysize_full = ysize + 1;
7018   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
7019   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
7020   Pixel line_color = getTabulatorBarColor();
7021
7022   if (line_color == BLACK_PIXEL)                // black => transparent
7023     return;
7024
7025   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
7026   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
7027   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
7028 }
7029
7030 static void DrawEditorLevelBorderLinesIfNeeded(void)
7031 {
7032   int xsize = lev_fieldx * ed_tilesize;
7033   int ysize = lev_fieldy * ed_tilesize;
7034   int line_size = getTabulatorBarHeight();
7035
7036   if (!suppressBorderElement())
7037     return;
7038
7039   // draw little border line around editable level playfield
7040
7041   if (xsize < SXSIZE)
7042     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
7043
7044   if (ysize < SYSIZE)
7045     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
7046
7047   if (xsize < SXSIZE && ysize < SYSIZE)
7048     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
7049 }
7050
7051 static void DrawEditorElement(int x, int y, int element)
7052 {
7053   DrawSizedElement(x, y, element, ed_tilesize);
7054 }
7055
7056 static void DrawEditorElementThruMask(int x, int y, int element)
7057 {
7058   DrawSizedElementThruMask(x, y, element, ed_tilesize);
7059 }
7060
7061 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
7062 {
7063   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
7064 }
7065
7066 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
7067 {
7068   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
7069   DrawEditorLevelBorderLinesIfNeeded();
7070 }
7071
7072 static void DrawDrawingArea(int id)
7073 {
7074   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7075   int x, y;
7076
7077   int *value = drawingarea_info[id].value;
7078   int area_xsize = drawingarea_info[id].area_xsize;
7079   int area_ysize = drawingarea_info[id].area_ysize;
7080   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7081
7082   for (x = 0; x < area_xsize; x++)
7083     for (y = 0; y < area_ysize; y++)
7084       DrawSizedGraphicExt(drawto,
7085                           gi->x + x * tilesize,
7086                           gi->y + y * tilesize,
7087                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
7088 }
7089
7090 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
7091 {
7092   int x, y;
7093   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
7094   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
7095
7096   BlitBitmap(drawto, drawto,
7097              SX + (dx == -1 ? ed_tilesize : 0),
7098              SY + (dy == -1 ? ed_tilesize : 0),
7099              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
7100              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
7101              SX + (dx == +1 ? ed_tilesize : 0),
7102              SY + (dy == +1 ? ed_tilesize : 0));
7103
7104   if (dx)
7105   {
7106     x = (dx == 1 ? 0 : ed_fieldx - 1);
7107     for (y = 0; y < ed_fieldy; y++)
7108       DrawEditorElementOrWall(x, y, from_x, from_y);
7109   }
7110   else if (dy)
7111   {
7112     y = (dy == 1 ? 0 : ed_fieldy - 1);
7113     for (x = 0; x < ed_fieldx; x++)
7114       DrawEditorElementOrWall(x, y, from_x, from_y);
7115   }
7116
7117   redraw_mask |= REDRAW_FIELD;
7118   BackToFront();
7119 }
7120
7121 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
7122                                    int *x, int *y)
7123 {
7124   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
7125 }
7126
7127 static void CreateControlButtons(void)
7128 {
7129   struct GadgetInfo *gi;
7130   int i;
7131
7132   // create toolbox buttons
7133   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7134   {
7135     int type_id = controlbutton_info[i].gadget_id;      // same as gadget ID here
7136     int id = controlbutton_info[i].gadget_id;
7137     int type = controlbutton_info[i].gadget_type;
7138     int graphic = controlbutton_info[i].graphic;
7139     struct XYTileSize *pos = controlbutton_info[i].pos;
7140     struct GraphicInfo *gd = &graphic_info[graphic];
7141     Bitmap *deco_bitmap = NULL;
7142     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
7143     int tile_size = 0, deco_shift = 0;
7144     boolean deco_masked = FALSE;
7145     int gd_x1 = gd->src_x;
7146     int gd_y1 = gd->src_y;
7147     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7148     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7149     int gd_x1a = gd->src_x + gd->active_xoffset;
7150     int gd_y1a = gd->src_y + gd->active_yoffset;
7151     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7152     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7153     int x = pos->x;
7154     int y = pos->y;
7155     unsigned int event_mask;
7156     int radio_button_nr = RADIO_NR_NONE;
7157     boolean checked = FALSE;
7158
7159     if (type_id != i)
7160       Fail("'controlbutton_info' structure corrupted at index %d -- please fix", i);
7161
7162     if (type == GD_TYPE_RADIO_BUTTON)
7163     {
7164       event_mask = GD_EVENT_PRESSED;
7165       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
7166
7167       if (id == drawing_function)
7168         checked = TRUE;
7169     }
7170     else
7171     {
7172       if (id == GADGET_ID_WRAP_LEFT ||
7173           id == GADGET_ID_WRAP_RIGHT ||
7174           id == GADGET_ID_WRAP_UP ||
7175           id == GADGET_ID_WRAP_DOWN)
7176         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7177       else
7178         event_mask = GD_EVENT_RELEASED;
7179     }
7180
7181     if (id == GADGET_ID_PROPERTIES ||
7182         id == GADGET_ID_PALETTE)
7183     {
7184       x += DX;
7185       y += DY;
7186     }
7187     else if (id == GADGET_ID_ELEMENT_LEFT ||
7188              id == GADGET_ID_ELEMENT_MIDDLE ||
7189              id == GADGET_ID_ELEMENT_RIGHT)
7190     {
7191       x += DX;
7192       y += DY;
7193
7194       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
7195                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
7196                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
7197
7198       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
7199                                    editor.button.element_left.tile_size :
7200                                    id == GADGET_ID_ELEMENT_MIDDLE ?
7201                                    editor.button.element_middle.tile_size :
7202                                    id == GADGET_ID_ELEMENT_RIGHT ?
7203                                    editor.button.element_right.tile_size : 0);
7204
7205       // make sure that decoration does not overlap gadget border
7206       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
7207
7208       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
7209
7210       deco_xpos = (gd->width  - tile_size) / 2;
7211       deco_ypos = (gd->height - tile_size) / 2;
7212       deco_shift = 1;
7213       deco_masked = gd->draw_masked;
7214     }
7215     else
7216     {
7217       x += EX;
7218       y += EY;
7219     }
7220
7221     gi = CreateGadget(GDI_CUSTOM_ID, id,
7222                       GDI_CUSTOM_TYPE_ID, type_id,
7223                       GDI_IMAGE_ID, graphic,
7224                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
7225                       GDI_X, x,
7226                       GDI_Y, y,
7227                       GDI_WIDTH, gd->width,
7228                       GDI_HEIGHT, gd->height,
7229                       GDI_TYPE, type,
7230                       GDI_STATE, GD_BUTTON_UNPRESSED,
7231                       GDI_RADIO_NR, radio_button_nr,
7232                       GDI_CHECKED, checked,
7233                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7234                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7235                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7236                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7237                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7238                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7239                       GDI_DECORATION_SIZE, tile_size, tile_size,
7240                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
7241                       GDI_DECORATION_MASKED, deco_masked,
7242                       GDI_EVENT_MASK, event_mask,
7243                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7244                       GDI_CALLBACK_ACTION, HandleControlButtons,
7245                       GDI_END);
7246
7247     if (gi == NULL)
7248       Fail("cannot create gadget");
7249
7250     level_editor_gadget[id] = gi;
7251   }
7252
7253   // these values are not constant, but can change at runtime
7254   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
7255   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
7256   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
7257   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
7258   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
7259   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
7260   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
7261   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
7262   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
7263   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
7264   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
7265   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
7266
7267   // create buttons for scrolling of drawing area and element list
7268   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
7269   {
7270     int id = scrollbutton_info[i].gadget_id;
7271     int type_id = scrollbutton_info[i].gadget_type_id;
7272     int graphic = scrollbutton_info[i].graphic;
7273     struct GraphicInfo *gd = &graphic_info[graphic];
7274     Bitmap *gd_bitmap = gd->bitmap;
7275     int gd_x1 = gd->src_x;
7276     int gd_y1 = gd->src_y;
7277     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7278     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7279     int width  = gd->width;
7280     int height = gd->height;
7281     int x = scrollbutton_pos[i].x;
7282     int y = scrollbutton_pos[i].y;
7283     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7284
7285     if (type_id != i)
7286       Fail("'scrollbutton_info' structure corrupted at index %d -- please fix", i);
7287
7288     if (id == GADGET_ID_SCROLL_LIST_UP ||
7289         id == GADGET_ID_SCROLL_LIST_DOWN)
7290     {
7291       x += PX;
7292       y += PY;
7293     }
7294     else
7295     {
7296       x += SX;
7297       y += SY;
7298     }
7299
7300     gi = CreateGadget(GDI_CUSTOM_ID, id,
7301                       GDI_CUSTOM_TYPE_ID, type_id,
7302                       GDI_IMAGE_ID, graphic,
7303                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
7304                       GDI_X, x,
7305                       GDI_Y, y,
7306                       GDI_WIDTH, width,
7307                       GDI_HEIGHT, height,
7308                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7309                       GDI_STATE, GD_BUTTON_UNPRESSED,
7310                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7311                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7312                       GDI_EVENT_MASK, event_mask,
7313                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7314                       GDI_CALLBACK_ACTION, HandleControlButtons,
7315                       GDI_END);
7316
7317     if (gi == NULL)
7318       Fail("cannot create gadget");
7319
7320     level_editor_gadget[id] = gi;
7321   }
7322
7323   // create buttons for element list
7324   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7325   {
7326     int type_id = i;
7327     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
7328     int graphic = IMG_EDITOR_PALETTE_BUTTON;
7329     struct GraphicInfo *gd = &graphic_info[graphic];
7330     Bitmap *gd_bitmap = gd->bitmap;
7331     Bitmap *deco_bitmap;
7332     int deco_x, deco_y, deco_xpos, deco_ypos;
7333     int gd_x1 = gd->src_x;
7334     int gd_y1 = gd->src_y;
7335     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7336     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7337     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
7338     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
7339     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
7340     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
7341     int element = editor_elements[i];
7342     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
7343     unsigned int event_mask = GD_EVENT_RELEASED;
7344
7345     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
7346
7347     deco_xpos = (gd->width  - tile_size) / 2;
7348     deco_ypos = (gd->height - tile_size) / 2;
7349
7350     gi = CreateGadget(GDI_CUSTOM_ID, id,
7351                       GDI_CUSTOM_TYPE_ID, type_id,
7352                       GDI_IMAGE_ID, graphic,
7353                       GDI_INFO_TEXT, getElementInfoText(element),
7354                       GDI_X, x,
7355                       GDI_Y, y,
7356                       GDI_WIDTH, gd->width,
7357                       GDI_HEIGHT, gd->height,
7358                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7359                       GDI_STATE, GD_BUTTON_UNPRESSED,
7360                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7361                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7362                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7363                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7364                       GDI_DECORATION_SIZE, tile_size, tile_size,
7365                       GDI_DECORATION_SHIFTING, 1, 1,
7366                       GDI_EVENT_MASK, event_mask,
7367                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7368                       GDI_CALLBACK_ACTION, HandleControlButtons,
7369                       GDI_END);
7370
7371     if (gi == NULL)
7372       Fail("cannot create gadget");
7373
7374     level_editor_gadget[id] = gi;
7375   }
7376 }
7377
7378 static void CreateCounterButtons(void)
7379 {
7380   int max_infotext_len = getMaxInfoTextLength();
7381   int i;
7382
7383   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
7384   {
7385     int type_id = counterbutton_info[i].gadget_type_id;
7386     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
7387     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
7388     int j;
7389
7390     if (type_id != i)
7391       Fail("'counterbutton_info' structure corrupted at index %d -- please fix", i);
7392
7393     // determine horizontal position to the right of specified gadget
7394     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7395       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
7396            ED_GADGET_TEXT_DISTANCE);
7397
7398     // determine horizontal offset for leading text
7399     if (counterbutton_info[i].text_left != NULL)
7400       x += getTextWidthForGadget(counterbutton_info[i].text_left);
7401
7402     for (j = 0; j < 2; j++)
7403     {
7404       struct GadgetInfo *gi;
7405       int id = (j == 0 ?
7406                 counterbutton_info[i].gadget_id_down :
7407                 counterbutton_info[i].gadget_id_up);
7408       int graphic;
7409       struct GraphicInfo *gd;
7410       int gd_x1, gd_x2, gd_y1, gd_y2;
7411       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7412       char infotext[max_infotext_len + 1];
7413
7414       if (i == ED_COUNTER_ID_SELECT_LEVEL)
7415       {
7416         graphic = (j == 0 ?
7417                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
7418                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
7419
7420         event_mask |= GD_EVENT_RELEASED;
7421
7422         if (j == 0)
7423         {
7424           x = DX + editor.button.prev_level.x;
7425           y = DY + editor.button.prev_level.y;
7426         }
7427         else
7428         {
7429           x = DX + editor.button.next_level.x;
7430           y = DY + editor.button.next_level.y;
7431         }
7432       }
7433       else
7434       {
7435         graphic = (j == 0 ?
7436                    IMG_EDITOR_COUNTER_DOWN :
7437                    IMG_EDITOR_COUNTER_UP);
7438       }
7439
7440       gd = &graphic_info[graphic];
7441
7442       gd_x1 = gd->src_x;
7443       gd_y1 = gd->src_y;
7444       gd_x2 = gd->src_x + gd->pressed_xoffset;
7445       gd_y2 = gd->src_y + gd->pressed_yoffset;
7446
7447       sprintf(infotext, "%s counter value by 1, 5 or 10",
7448               (j == 0 ? "decrease" : "increase"));
7449
7450       gi = CreateGadget(GDI_CUSTOM_ID, id,
7451                         GDI_CUSTOM_TYPE_ID, type_id,
7452                         GDI_IMAGE_ID, graphic,
7453                         GDI_INFO_TEXT, infotext,
7454                         GDI_X, x,
7455                         GDI_Y, y,
7456                         GDI_WIDTH, gd->width,
7457                         GDI_HEIGHT, gd->height,
7458                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7459                         GDI_STATE, GD_BUTTON_UNPRESSED,
7460                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7461                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7462                         GDI_EVENT_MASK, event_mask,
7463                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7464                         GDI_CALLBACK_ACTION, HandleCounterButtons,
7465                         GDI_END);
7466
7467       if (gi == NULL)
7468         Fail("cannot create gadget");
7469
7470       level_editor_gadget[id] = gi;
7471       right_gadget_border[id] =
7472         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7473
7474       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
7475
7476       if (j == 0)
7477       {
7478         int font_type = FONT_INPUT_1;
7479         int font_type_active = FONT_INPUT_1_ACTIVE;
7480
7481         id = counterbutton_info[i].gadget_id_text;
7482
7483         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7484
7485         if (i == ED_COUNTER_ID_SELECT_LEVEL)
7486         {
7487           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
7488
7489           font_type = FONT_LEVEL_NUMBER;
7490           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
7491
7492           x = DX + editor.input.level_number.x;
7493           y = DY + editor.input.level_number.y;
7494         }
7495         else
7496         {
7497           graphic = IMG_EDITOR_COUNTER_INPUT;
7498         }
7499
7500         gd = &graphic_info[graphic];
7501
7502         gd_x1 = gd->src_x;
7503         gd_y1 = gd->src_y;
7504         gd_x2 = gd->src_x + gd->active_xoffset;
7505         gd_y2 = gd->src_y + gd->active_yoffset;
7506
7507         gi = CreateGadget(GDI_CUSTOM_ID, id,
7508                           GDI_CUSTOM_TYPE_ID, type_id,
7509                           GDI_IMAGE_ID, graphic,
7510                           GDI_INFO_TEXT, "enter counter value",
7511                           GDI_X, x,
7512                           GDI_Y, y,
7513                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
7514                           GDI_NUMBER_VALUE, 0,
7515                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
7516                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
7517                           GDI_TEXT_SIZE, 3,     // minimal counter text size
7518                           GDI_TEXT_FONT, font_type,
7519                           GDI_TEXT_FONT_ACTIVE, font_type_active,
7520                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7521                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7522                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7523                           GDI_DESIGN_WIDTH, gd->width,
7524                           GDI_EVENT_MASK, event_mask,
7525                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7526                           GDI_CALLBACK_ACTION, HandleCounterButtons,
7527                           GDI_END);
7528
7529         if (gi == NULL)
7530           Fail("cannot create gadget");
7531
7532         level_editor_gadget[id] = gi;
7533         right_gadget_border[id] =
7534           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7535
7536         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
7537       }
7538     }
7539   }
7540 }
7541
7542 static void CreateDrawingAreas(void)
7543 {
7544   int i;
7545
7546   // these values are not constant, but can change at runtime
7547   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
7548   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
7549
7550   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
7551   {
7552     struct GadgetInfo *gi;
7553     int id = drawingarea_info[i].gadget_id;
7554     int type_id = drawingarea_info[i].gadget_type_id;
7555     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
7556     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
7557     int area_xsize = drawingarea_info[i].area_xsize;
7558     int area_ysize = drawingarea_info[i].area_ysize;
7559     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
7560                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
7561     unsigned int event_mask =
7562       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
7563       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
7564
7565     if (type_id != i)
7566       Fail("'drawingarea_info' structure corrupted at index %d -- please fix", i);
7567
7568     // determine horizontal position to the right of specified gadget
7569     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
7570       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
7571            ED_DRAWINGAREA_TEXT_DISTANCE);
7572
7573     // determine horizontal offset for leading text
7574     if (drawingarea_info[i].text_left != NULL)
7575       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
7576
7577     gi = CreateGadget(GDI_CUSTOM_ID, id,
7578                       GDI_CUSTOM_TYPE_ID, type_id,
7579                       GDI_X, x,
7580                       GDI_Y, y,
7581                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
7582                       GDI_AREA_SIZE, area_xsize, area_ysize,
7583                       GDI_ITEM_SIZE, item_size, item_size,
7584                       GDI_EVENT_MASK, event_mask,
7585                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
7586                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
7587                       GDI_END);
7588
7589     if (gi == NULL)
7590       Fail("cannot create gadget");
7591
7592     level_editor_gadget[id] = gi;
7593     right_gadget_border[id] =
7594       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
7595   }
7596 }
7597
7598 static void CreateTextInputGadgets(void)
7599 {
7600   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
7601   int max_infotext_len = getMaxInfoTextLength();
7602   int i;
7603
7604   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
7605   {
7606     int gd_x1 = gd->src_x;
7607     int gd_y1 = gd->src_y;
7608     int gd_x2 = gd->src_x + gd->active_xoffset;
7609     int gd_y2 = gd->src_y + gd->active_yoffset;
7610     struct GadgetInfo *gi;
7611     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7612     char infotext[MAX_OUTPUT_LINESIZE + 1];
7613     int id = textinput_info[i].gadget_id;
7614     int type_id = textinput_info[i].gadget_type_id;
7615     int x, y;
7616
7617     if (type_id != i)
7618       Fail("'textinput_info' structure corrupted at index %d -- please fix", i);
7619
7620     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
7621     {
7622       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
7623       int border_size = gd->border_size;
7624       int font_nr = FONT_INPUT_1;
7625       int font_height = getFontHeight(font_nr);
7626       int xoffset = element_border + TILEX + element_border + 3 * border_size;
7627       int yoffset = element_border + (TILEY - font_height) / 2;
7628
7629       x = (editor.settings.element_name.x != -1 ?
7630            editor.settings.element_name.x :
7631            editor.settings.element_graphic.x + xoffset) - border_size;
7632       y = (editor.settings.element_name.y != -1 ?
7633            editor.settings.element_name.y :
7634            editor.settings.element_graphic.y + yoffset) - border_size;
7635     }
7636     else
7637     {
7638       x = ED_SETTINGS_X(textinput_info[i].x);
7639       y = ED_SETTINGS_Y(textinput_info[i].y);
7640     }
7641
7642     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
7643     infotext[max_infotext_len] = '\0';
7644
7645     gi = CreateGadget(GDI_CUSTOM_ID, id,
7646                       GDI_CUSTOM_TYPE_ID, type_id,
7647                       GDI_INFO_TEXT, infotext,
7648                       GDI_X, SX + x,
7649                       GDI_Y, SY + y,
7650                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
7651                       GDI_TEXT_VALUE, textinput_info[i].value,
7652                       GDI_TEXT_SIZE, textinput_info[i].size,
7653                       GDI_TEXT_FONT, FONT_INPUT_1,
7654                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7655                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7656                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7657                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7658                       GDI_DESIGN_WIDTH, gd->width,
7659                       GDI_EVENT_MASK, event_mask,
7660                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7661                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
7662                       GDI_END);
7663
7664     if (gi == NULL)
7665       Fail("cannot create gadget");
7666
7667     level_editor_gadget[id] = gi;
7668   }
7669 }
7670
7671 static void CreateTextAreaGadgets(void)
7672 {
7673   int max_infotext_len = getMaxInfoTextLength();
7674   int i;
7675
7676   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
7677   {
7678     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
7679     int gd_x1 = gd->src_x;
7680     int gd_y1 = gd->src_y;
7681     int gd_x2 = gd->src_x + gd->active_xoffset;
7682     int gd_y2 = gd->src_y + gd->active_yoffset;
7683     struct GadgetInfo *gi;
7684     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
7685     char infotext[MAX_OUTPUT_LINESIZE + 1];
7686     int id = textarea_info[i].gadget_id;
7687     int type_id = textarea_info[i].gadget_type_id;
7688     int area_xsize = textarea_info[i].xsize;
7689     int area_ysize = textarea_info[i].ysize;
7690
7691     if (type_id != i)
7692       Fail("'textarea_info' structure corrupted at index %d -- please fix", i);
7693
7694     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
7695     infotext[max_infotext_len] = '\0';
7696
7697     gi = CreateGadget(GDI_CUSTOM_ID, id,
7698                       GDI_CUSTOM_TYPE_ID, type_id,
7699                       GDI_INFO_TEXT, infotext,
7700                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
7701                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
7702                       GDI_TYPE, GD_TYPE_TEXT_AREA,
7703                       GDI_AREA_SIZE, area_xsize, area_ysize,
7704                       GDI_TEXT_FONT, FONT_INPUT_1,
7705                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7706                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7707                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7708                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7709                       GDI_DESIGN_WIDTH, gd->width,
7710                       GDI_EVENT_MASK, event_mask,
7711                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7712                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
7713                       GDI_END);
7714
7715     if (gi == NULL)
7716       Fail("cannot create gadget");
7717
7718     level_editor_gadget[id] = gi;
7719   }
7720 }
7721
7722 static void CreateSelectboxGadgets(void)
7723 {
7724   int max_infotext_len = getMaxInfoTextLength();
7725   int i, j;
7726
7727   for (i = 0; i < ED_NUM_SELECTBOX; i++)
7728   {
7729     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
7730     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
7731     int gd_x1 = gd->src_x;
7732     int gd_y1 = gd->src_y;
7733     int gd_x2 = gd->src_x + gd->active_xoffset;
7734     int gd_y2 = gd->src_y + gd->active_yoffset;
7735     int selectbox_button_xsize = gd2->width;
7736     struct GadgetInfo *gi;
7737     char infotext[MAX_OUTPUT_LINESIZE + 1];
7738     int id = selectbox_info[i].gadget_id;
7739     int type_id = selectbox_info[i].gadget_type_id;
7740     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
7741     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
7742     unsigned int event_mask =
7743       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7744
7745     if (type_id != i)
7746       Fail("'selectbox_info' structure corrupted at index %d -- please fix", i);
7747
7748     if (selectbox_info[i].size == -1)   // dynamically determine size
7749     {
7750       // (we cannot use -1 for uninitialized values if we directly compare
7751       // with results from strlen(), because the '<' and '>' operation will
7752       // implicitely cast -1 to an unsigned integer value!)
7753       selectbox_info[i].size = 0;
7754
7755       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
7756         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
7757           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
7758
7759       selectbox_info[i].size++;         // add one character empty space
7760     }
7761
7762     // determine horizontal position to the right of specified gadget
7763     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
7764       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
7765            ED_GADGET_TEXT_DISTANCE);
7766
7767     // determine horizontal offset for leading text
7768     if (selectbox_info[i].text_left != NULL)
7769       x += getTextWidthForGadget(selectbox_info[i].text_left);
7770
7771     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
7772     infotext[max_infotext_len] = '\0';
7773
7774     gi = CreateGadget(GDI_CUSTOM_ID, id,
7775                       GDI_CUSTOM_TYPE_ID, type_id,
7776                       GDI_INFO_TEXT, infotext,
7777                       GDI_X, x,
7778                       GDI_Y, y,
7779                       GDI_TYPE, GD_TYPE_SELECTBOX,
7780                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
7781                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
7782                       GDI_TEXT_SIZE, selectbox_info[i].size,
7783                       GDI_TEXT_FONT, FONT_INPUT_1,
7784                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7785                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
7786                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7787                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7788                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7789                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
7790                       GDI_DESIGN_WIDTH, gd->width,
7791                       GDI_EVENT_MASK, event_mask,
7792                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7793                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
7794                       GDI_END);
7795
7796     if (gi == NULL)
7797       Fail("cannot create gadget");
7798
7799     level_editor_gadget[id] = gi;
7800     right_gadget_border[id] =
7801       getRightGadgetBorder(gi, selectbox_info[i].text_right);
7802   }
7803 }
7804
7805 static void CreateTextbuttonGadgets(void)
7806 {
7807   int max_infotext_len = getMaxInfoTextLength();
7808   int i;
7809
7810   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
7811   {
7812     int id = textbutton_info[i].gadget_id;
7813     int type_id = textbutton_info[i].gadget_type_id;
7814     int is_tab_button =
7815       ((id >= GADGET_ID_LEVELCONFIG_LEVEL && id <= GADGET_ID_LEVELCONFIG_ENGINE) ||
7816        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
7817     int graphic =
7818       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
7819     int gadget_distance =
7820       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
7821     struct GraphicInfo *gd = &graphic_info[graphic];
7822     int gd_x1 = gd->src_x;
7823     int gd_y1 = gd->src_y;
7824     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7825     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7826     int gd_x1a = gd->src_x + gd->active_xoffset;
7827     int gd_y1a = gd->src_y + gd->active_yoffset;
7828     int border_xsize = gd->border_size + gd->draw_xoffset;
7829     int border_ysize = gd->border_size;
7830     struct GadgetInfo *gi;
7831     unsigned int event_mask = GD_EVENT_RELEASED;
7832     char infotext[MAX_OUTPUT_LINESIZE + 1];
7833     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
7834     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
7835
7836     if (type_id != i)
7837       Fail("'textbutton_info' structure corrupted at index %d -- please fix", i);
7838
7839     if (textbutton_info[i].size == -1)  // dynamically determine size
7840       textbutton_info[i].size = strlen(textbutton_info[i].text);
7841
7842     sprintf(infotext, "%s", textbutton_info[i].infotext);
7843     infotext[max_infotext_len] = '\0';
7844
7845     // determine horizontal position to the right of specified gadget
7846     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7847     {
7848       int gadget_id_align = textbutton_info[i].gadget_id_align;
7849
7850       x = right_gadget_border[gadget_id_align] + gadget_distance;
7851
7852       if (textbutton_info[i].y == -1)
7853         y = level_editor_gadget[gadget_id_align]->y;
7854     }
7855
7856     // determine horizontal offset for leading text
7857     if (textbutton_info[i].text_left != NULL)
7858       x += getTextWidthForGadget(textbutton_info[i].text_left);
7859
7860     gi = CreateGadget(GDI_CUSTOM_ID, id,
7861                       GDI_CUSTOM_TYPE_ID, type_id,
7862                       GDI_IMAGE_ID, graphic,
7863                       GDI_INFO_TEXT, infotext,
7864                       GDI_X, x,
7865                       GDI_Y, y,
7866                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
7867                       GDI_TEXT_VALUE, textbutton_info[i].text,
7868                       GDI_TEXT_SIZE, textbutton_info[i].size,
7869                       GDI_TEXT_FONT, FONT_INPUT_2,
7870                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
7871                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7872                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7873                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7874                       GDI_BORDER_SIZE, border_xsize, border_ysize,
7875                       GDI_DESIGN_WIDTH, gd->width,
7876                       GDI_DECORATION_SHIFTING, 1, 1,
7877                       GDI_EVENT_MASK, event_mask,
7878                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7879                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
7880                       GDI_END);
7881
7882     if (gi == NULL)
7883       Fail("cannot create gadget");
7884
7885     level_editor_gadget[id] = gi;
7886     right_gadget_border[id] =
7887       getRightGadgetBorder(gi, textbutton_info[i].text_right);
7888   }
7889 }
7890
7891 static void CreateGraphicbuttonGadgets(void)
7892 {
7893   struct GadgetInfo *gi;
7894   int i;
7895
7896   // create buttons for scrolling of drawing area and element list
7897   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
7898   {
7899     int id = graphicbutton_info[i].gadget_id;
7900     int type_id = graphicbutton_info[i].gadget_type_id;
7901     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
7902     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
7903     int graphic = graphicbutton_info[i].graphic;
7904     struct GraphicInfo *gd = &graphic_info[graphic];
7905     int gd_x1 = gd->src_x;
7906     int gd_y1 = gd->src_y;
7907     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7908     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7909     unsigned int event_mask = GD_EVENT_RELEASED;
7910
7911     if (type_id != i)
7912       Fail("'graphicbutton_info' structure corrupted at index %d -- please fix", i);
7913
7914     // determine horizontal position to the right of specified gadget
7915     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7916       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
7917            ED_GADGET_TEXT_DISTANCE);
7918
7919     // determine horizontal offset for leading text
7920     if (graphicbutton_info[i].text_left != NULL)
7921       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
7922
7923     gi = CreateGadget(GDI_CUSTOM_ID, id,
7924                       GDI_CUSTOM_TYPE_ID, type_id,
7925                       GDI_IMAGE_ID, graphic,
7926                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
7927                       GDI_X, x,
7928                       GDI_Y, y,
7929                       GDI_WIDTH, gd->width,
7930                       GDI_HEIGHT, gd->height,
7931                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7932                       GDI_STATE, GD_BUTTON_UNPRESSED,
7933                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7934                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7935                       GDI_EVENT_MASK, event_mask,
7936                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7937                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
7938                       GDI_END);
7939
7940     if (gi == NULL)
7941       Fail("cannot create gadget");
7942
7943     level_editor_gadget[id] = gi;
7944     right_gadget_border[id] =
7945       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
7946   }
7947 }
7948
7949 static void CreateScrollbarGadgets(void)
7950 {
7951   int i;
7952
7953   // these values are not constant, but can change at runtime
7954   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
7955     SX + ED_SCROLL_HORIZONTAL_XPOS;
7956   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
7957     SY + ED_SCROLL_HORIZONTAL_YPOS;
7958   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
7959     ED_SCROLL_HORIZONTAL_XSIZE;
7960   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
7961     ED_SCROLL_HORIZONTAL_YSIZE;
7962   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
7963   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
7964   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
7965   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
7966
7967   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
7968     SX + ED_SCROLL_VERTICAL_XPOS;
7969   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
7970     SY + ED_SCROLL_VERTICAL_YPOS;
7971   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
7972     ED_SCROLL_VERTICAL_XSIZE;
7973   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
7974     ED_SCROLL_VERTICAL_YSIZE;
7975   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
7976   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
7977   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
7978   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
7979
7980   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
7981     PX + ED_SCROLL2_VERTICAL_XPOS;
7982   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
7983     PY + ED_SCROLL2_VERTICAL_YPOS;
7984   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
7985     ED_SCROLL2_VERTICAL_XSIZE;
7986   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
7987     ED_SCROLL2_VERTICAL_YSIZE;
7988   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
7989   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
7990   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
7991   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
7992
7993   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
7994   {
7995     int id = scrollbar_info[i].gadget_id;
7996     int type_id = scrollbar_info[i].gadget_type_id;
7997     int graphic = scrollbar_info[i].graphic;
7998     struct GraphicInfo *gd = &graphic_info[graphic];
7999     int gd_x1 = gd->src_x;
8000     int gd_y1 = gd->src_y;
8001     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8002     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8003     struct GadgetInfo *gi;
8004     int items_max, items_visible, item_position;
8005     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
8006
8007     if (type_id != i)
8008       Fail("'scrollbar_info' structure corrupted at index %d -- please fix", i);
8009
8010     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
8011     {
8012       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
8013       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
8014       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
8015     }
8016     else        // drawing area scrollbars
8017     {
8018       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
8019       {
8020         items_max = MAX(lev_fieldx + 2, ed_fieldx);
8021         items_visible = ed_fieldx;
8022         item_position = 0;
8023       }
8024       else
8025       {
8026         items_max = MAX(lev_fieldy + 2, ed_fieldy);
8027         items_visible = ed_fieldy;
8028         item_position = 0;
8029       }
8030     }
8031
8032     gi = CreateGadget(GDI_CUSTOM_ID, id,
8033                       GDI_CUSTOM_TYPE_ID, type_id,
8034                       GDI_IMAGE_ID, graphic,
8035                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
8036                       GDI_X, scrollbar_pos[i].x,
8037                       GDI_Y, scrollbar_pos[i].y,
8038                       GDI_WIDTH, scrollbar_pos[i].width,
8039                       GDI_HEIGHT, scrollbar_pos[i].height,
8040                       GDI_TYPE, scrollbar_info[i].type,
8041                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
8042                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8043                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
8044                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
8045                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
8046                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
8047                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
8048                       GDI_STATE, GD_BUTTON_UNPRESSED,
8049                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8050                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8051                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8052                       GDI_EVENT_MASK, event_mask,
8053                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8054                       GDI_CALLBACK_ACTION, HandleControlButtons,
8055                       GDI_END);
8056
8057     if (gi == NULL)
8058       Fail("cannot create gadget");
8059
8060     level_editor_gadget[id] = gi;
8061   }
8062 }
8063
8064 static void CreateCheckbuttonGadgets(void)
8065 {
8066   struct GadgetInfo *gi;
8067   int i;
8068
8069   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
8070   {
8071     int id = checkbutton_info[i].gadget_id;
8072     int type_id = checkbutton_info[i].gadget_type_id;
8073     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
8074                    IMG_EDITOR_CHECKBOX);
8075     struct GraphicInfo *gd = &graphic_info[graphic];
8076     int gd_x1 = gd->src_x;
8077     int gd_y1 = gd->src_y;
8078     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8079     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8080     int gd_x1a = gd->src_x + gd->active_xoffset;
8081     int gd_y1a = gd->src_y + gd->active_yoffset;
8082     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8083     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8084     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
8085     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
8086     unsigned int event_mask = GD_EVENT_PRESSED;
8087
8088     if (type_id != i)
8089       Fail("'checkbutton_info' structure corrupted at index %d -- please fix", i);
8090
8091     // determine horizontal position to the right of specified gadget
8092     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8093       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
8094            ED_GADGET_TEXT_DISTANCE);
8095
8096     // determine horizontal offset for leading text
8097     if (checkbutton_info[i].text_left != NULL)
8098       x += getTextWidthForGadget(checkbutton_info[i].text_left);
8099
8100     gi = CreateGadget(GDI_CUSTOM_ID, id,
8101                       GDI_CUSTOM_TYPE_ID, type_id,
8102                       GDI_IMAGE_ID, graphic,
8103                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
8104                       GDI_X, x,
8105                       GDI_Y, y,
8106                       GDI_WIDTH, gd->width,
8107                       GDI_HEIGHT, gd->height,
8108                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
8109                       GDI_CHECKED, *checkbutton_info[i].value,
8110                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8111                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8112                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8113                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8114                       GDI_EVENT_MASK, event_mask,
8115                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8116                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
8117                       GDI_END);
8118
8119     if (gi == NULL)
8120       Fail("cannot create gadget");
8121
8122     level_editor_gadget[id] = gi;
8123     right_gadget_border[id] =
8124       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
8125   }
8126 }
8127
8128 static void CreateRadiobuttonGadgets(void)
8129 {
8130   int graphic = IMG_EDITOR_RADIOBUTTON;
8131   struct GraphicInfo *gd = &graphic_info[graphic];
8132   int gd_x1 = gd->src_x;
8133   int gd_y1 = gd->src_y;
8134   int gd_x2 = gd->src_x + gd->pressed_xoffset;
8135   int gd_y2 = gd->src_y + gd->pressed_yoffset;
8136   int gd_x1a = gd->src_x + gd->active_xoffset;
8137   int gd_y1a = gd->src_y + gd->active_yoffset;
8138   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8139   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8140   struct GadgetInfo *gi;
8141   int i;
8142
8143   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
8144   {
8145     int id = radiobutton_info[i].gadget_id;
8146     int type_id = radiobutton_info[i].gadget_type_id;
8147     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
8148     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
8149     unsigned int event_mask = GD_EVENT_PRESSED;
8150
8151     if (type_id != i)
8152       Fail("'radiobutton_info' structure corrupted at index %d -- please fix", i);
8153
8154     int checked =
8155       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
8156
8157     // determine horizontal position to the right of specified gadget
8158     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
8159       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
8160            ED_GADGET_TEXT_DISTANCE);
8161
8162     // determine horizontal offset for leading text
8163     if (radiobutton_info[i].text_left != NULL)
8164       x += getTextWidthForGadget(radiobutton_info[i].text_left);
8165
8166     gi = CreateGadget(GDI_CUSTOM_ID, id,
8167                       GDI_CUSTOM_TYPE_ID, type_id,
8168                       GDI_IMAGE_ID, graphic,
8169                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
8170                       GDI_X, x,
8171                       GDI_Y, y,
8172                       GDI_WIDTH, gd->width,
8173                       GDI_HEIGHT, gd->height,
8174                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
8175                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
8176                       GDI_CHECKED, checked,
8177                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8178                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8179                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8180                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8181                       GDI_EVENT_MASK, event_mask,
8182                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8183                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
8184                       GDI_END);
8185
8186     if (gi == NULL)
8187       Fail("cannot create gadget");
8188
8189     level_editor_gadget[id] = gi;
8190     right_gadget_border[id] =
8191       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
8192   }
8193 }
8194
8195 void CreateLevelEditorGadgets(void)
8196 {
8197   // force EDITOR font inside level editor
8198   SetFontStatus(GAME_MODE_EDITOR);
8199
8200   // these values are not constant, but can change at runtime
8201   ed_fieldx = MAX_ED_FIELDX - 1;
8202   ed_fieldy = MAX_ED_FIELDY - 1;
8203
8204   num_editor_gadgets = NUM_EDITOR_GADGETS;
8205
8206   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
8207
8208   level_editor_gadget =
8209     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
8210   right_gadget_border =
8211     checked_calloc(num_editor_gadgets * sizeof(int));
8212
8213   // set number of empty (padding) element buttons to maximum number of buttons
8214   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
8215
8216   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
8217   editor_el_empty_ptr = editor_el_empty;
8218
8219   use_permanent_palette = !editor.palette.show_as_separate_screen;
8220
8221   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
8222
8223   ReinitializeElementList();
8224
8225   CreateControlButtons();
8226   CreateScrollbarGadgets();
8227
8228   // order of function calls is important because of cross-references
8229   CreateCheckbuttonGadgets();
8230   CreateCounterButtons();
8231   CreateRadiobuttonGadgets();
8232   CreateTextInputGadgets();
8233   CreateTextAreaGadgets();
8234   CreateSelectboxGadgets();
8235   CreateGraphicbuttonGadgets();
8236   CreateTextbuttonGadgets();
8237   CreateDrawingAreas();
8238
8239   ResetFontStatus();
8240 }
8241
8242 void FreeLevelEditorGadgets(void)
8243 {
8244   int i;
8245
8246   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
8247
8248   for (i = 0; i < num_editor_gadgets; i++)
8249   {
8250     FreeGadget(level_editor_gadget[i]);
8251
8252     level_editor_gadget[i] = NULL;
8253   }
8254
8255   checked_free(level_editor_gadget);
8256   checked_free(right_gadget_border);
8257
8258   checked_free(editor_el_empty);
8259 }
8260
8261 static void MapCounterButtons(int id)
8262 {
8263   int font_nr = FONT_TEXT_1;
8264   int font_height = getFontHeight(font_nr);
8265   int gadget_id_down = counterbutton_info[id].gadget_id_down;
8266   int gadget_id_text = counterbutton_info[id].gadget_id_text;
8267   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
8268   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
8269   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
8270   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
8271   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
8272   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8273   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8274   int yoffset = (gi_down->height - font_height) / 2;
8275   int x_left = gi_down->x - xoffset_left;
8276   int x_right;  // set after gadget position was modified
8277   int y_above = gi_down->y - yoffset_above;
8278   int x = gi_down->x;
8279   int y;        // set after gadget position was modified
8280
8281   // counter limits must be changed first to prevent value truncation
8282   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
8283                             counterbutton_info[id].max_value);
8284
8285   // right text position might have changed after setting position above
8286   x_right = gi_up->x + gi_up->width + xoffset_right;
8287
8288   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
8289
8290   // set position for counter gadgets with dynamically determined position
8291   if (id != ED_COUNTER_ID_SELECT_LEVEL)
8292   {
8293     ModifyGadget(gi_down, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8294     ModifyGadget(gi_text, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8295     ModifyGadget(gi_up,   GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8296   }
8297
8298   // vertical position might have changed after setting position above
8299   y = gi_up->y + yoffset;
8300
8301   if (counterbutton_info[id].text_above)
8302     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
8303
8304   if (counterbutton_info[id].text_left)
8305     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
8306
8307   if (counterbutton_info[id].text_right)
8308     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
8309
8310   MapGadget(gi_down);
8311   MapGadget(gi_text);
8312   MapGadget(gi_up);
8313 }
8314
8315 static void MapControlButtons(void)
8316 {
8317   int counter_id;
8318   int i;
8319
8320   // map toolbox buttons (excluding special CE toolbox buttons)
8321   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
8322     MapGadget(level_editor_gadget[i]);
8323
8324   // map toolbox buttons (element properties buttons)
8325   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
8326     MapGadget(level_editor_gadget[i]);
8327
8328   if (use_permanent_palette)
8329   {
8330     // map buttons to select elements
8331     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
8332       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
8333     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
8334     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
8335     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
8336   }
8337
8338   // map buttons to select level
8339   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
8340   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
8341   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
8342   MapCounterButtons(counter_id);
8343 }
8344
8345 static void MapDrawingArea(int id)
8346 {
8347   int font_nr = FONT_TEXT_1;
8348   int font_height = getFontHeight(font_nr);
8349   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
8350   int area_xsize = gi->drawing.area_xsize;
8351   int area_ysize = gi->drawing.area_ysize;
8352   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8353   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
8354   int x_left  = gi->x - xoffset_left - ED_DRAWINGAREA_BORDER_SIZE;
8355   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
8356   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
8357   int x_below = gi->x + (gi->width - xoffset_below) / 2;
8358   int y_side  = gi->y + (gi->height - font_height) / 2;
8359   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
8360   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
8361
8362   if (drawingarea_info[id].text_left)
8363     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
8364
8365   if (drawingarea_info[id].text_right)
8366     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
8367
8368   if (drawingarea_info[id].text_above)
8369     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
8370
8371   if (drawingarea_info[id].text_below)
8372     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
8373
8374   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
8375   {
8376     DrawElementBorder(gi->x, gi->y,
8377                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
8378                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
8379
8380     DrawDrawingArea(id);
8381   }
8382
8383   MapGadget(gi);
8384 }
8385
8386 static void MapTextInputGadget(int id)
8387 {
8388   int font_nr = FONT_TEXT_1;
8389   int font_height = getFontHeight(font_nr);
8390   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
8391   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8392   int x_above = ED_SETTINGS_X(textinput_info[id].x);
8393   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
8394
8395   if (textinput_info[id].text_above)
8396     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
8397
8398   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
8399
8400   MapGadget(gi);
8401 }
8402
8403 static void MapTextAreaGadget(int id)
8404 {
8405   int font_nr = FONT_TEXT_1;
8406   int font_height = getFontHeight(font_nr);
8407   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
8408   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8409   int x_above = ED_SETTINGS_X(textarea_info[id].x);
8410   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
8411   char *text_above = textarea_info[id].text_above;
8412
8413   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
8414     text_above = textarea_info[id].text_above_cropped;
8415
8416   if (text_above)
8417     DrawTextS(x_above, y_above, font_nr, text_above);
8418
8419   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
8420
8421   MapGadget(gi);
8422 }
8423
8424 static void MapSelectboxGadget(int id)
8425 {
8426   int font_nr = FONT_TEXT_1;
8427   int font_height = getFontHeight(font_nr);
8428   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
8429   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
8430   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8431   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8432   int yoffset = (gi->height - font_height) / 2;
8433   int x_left = gi->x - xoffset_left;
8434   int x_right = gi->x + gi->width + xoffset_right;
8435   int y_above = gi->y - yoffset_above;
8436   int x = gi->x;
8437   int y = gi->y + yoffset;
8438
8439   if (selectbox_info[id].text_above)
8440     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
8441
8442   if (selectbox_info[id].text_left)
8443     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
8444
8445   if (selectbox_info[id].text_right)
8446     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
8447
8448   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
8449
8450   MapGadget(gi);
8451 }
8452
8453 static void MapTextbuttonGadget(int id)
8454 {
8455   int font_nr = FONT_TEXT_1;
8456   int font_height = getFontHeight(font_nr);
8457   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
8458   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
8459   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8460   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8461   int yoffset = (gi->height - font_height) / 2;
8462   int x_left = gi->x - xoffset_left;
8463   int x_right = gi->x + gi->width + xoffset_right;
8464   int y_above = gi->y - yoffset_above;
8465   int x = gi->x;
8466   int y = gi->y + yoffset;
8467
8468   // only show button to delete change pages when more than minimum pages
8469   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
8470       custom_element.num_change_pages == MIN_CHANGE_PAGES)
8471     return;
8472
8473   if (textbutton_info[id].text_above)
8474     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
8475
8476   if (textbutton_info[id].text_left)
8477     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
8478
8479   if (textbutton_info[id].text_right)
8480     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
8481
8482   MapGadget(gi);
8483 }
8484
8485 static void MapGraphicbuttonGadget(int id)
8486 {
8487   int font_nr = FONT_TEXT_1;
8488   int font_height = getFontHeight(font_nr);
8489   struct GadgetInfo *gi = level_editor_gadget[graphicbutton_info[id].gadget_id];
8490   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
8491   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8492   int yoffset = (gi->height - font_height) / 2;
8493   int x_left = gi->x - xoffset_left;
8494   int x_right = gi->x + gi->width + xoffset_right;
8495   int y = gi->y + yoffset;
8496
8497   if (graphicbutton_info[id].text_left)
8498     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
8499
8500   if (graphicbutton_info[id].text_right)
8501     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
8502
8503   MapGadget(gi);
8504 }
8505
8506 static void MapRadiobuttonGadget(int id)
8507 {
8508   int font_nr = FONT_TEXT_1;
8509   int font_height = getFontHeight(font_nr);
8510   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
8511   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8512   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8513   int yoffset = (gi->height - font_height) / 2;
8514   int x_left = gi->x - xoffset_left;
8515   int x_right = gi->x + gi->width + xoffset_right;
8516   int y = gi->y + yoffset;
8517   boolean checked =
8518     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
8519
8520   if (radiobutton_info[id].text_left)
8521     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
8522
8523   if (radiobutton_info[id].text_right)
8524     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
8525
8526   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
8527
8528   MapGadget(gi);
8529 }
8530
8531 static void MapCheckbuttonGadget(int id)
8532 {
8533   int font_nr = FONT_TEXT_1;
8534   int font_height = getFontHeight(font_nr);
8535   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
8536   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8537   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8538   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8539   int yoffset = (gi->height - font_height) / 2;
8540   int y_above = gi->y - yoffset_above;
8541   int x = gi->x;
8542   int x_left, x_right, y;       // set after gadget position was modified
8543
8544   // set position for gadgets with dynamically determined position
8545   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
8546     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x), GDI_END);
8547   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
8548
8549   x_left = gi->x - xoffset_left;
8550   x_right = gi->x + gi->width + xoffset_right;
8551   y = gi->y + yoffset;
8552
8553   if (checkbutton_info[id].text_above)
8554     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
8555
8556   if (checkbutton_info[id].text_left)
8557     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
8558
8559   if (checkbutton_info[id].text_right)
8560     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
8561
8562   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
8563
8564   MapGadget(gi);
8565 }
8566
8567 static void MapMainDrawingArea(void)
8568 {
8569   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
8570   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
8571   int i;
8572
8573   if (suppressBorderElement())
8574   {
8575     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
8576     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
8577   }
8578
8579   for (i = ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
8580   {
8581     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
8582           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
8583          no_horizontal_scrollbar) ||
8584         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
8585           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
8586          no_vertical_scrollbar))
8587       continue;
8588
8589     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
8590   }
8591
8592   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
8593   {
8594     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
8595         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
8596       continue;
8597
8598     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
8599   }
8600
8601   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
8602 }
8603
8604 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
8605 {
8606   int i;
8607
8608   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
8609   {
8610     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
8611         i == GADGET_ID_CUSTOM_COPY_TO ||
8612         i == GADGET_ID_CUSTOM_EXCHANGE ||
8613         i == GADGET_ID_CUSTOM_COPY ||
8614         i == GADGET_ID_CUSTOM_PASTE)
8615     {
8616       if (map)
8617         MapGadget(level_editor_gadget[i]);
8618       else
8619         UnmapGadget(level_editor_gadget[i]);
8620     }
8621   }
8622 }
8623
8624 static void MapLevelEditorToolboxCustomGadgets(void)
8625 {
8626   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
8627 }
8628
8629 static void MapLevelEditorToolboxCustomGadgetsIfNeeded(void)
8630 {
8631   if (IS_CUSTOM_ELEMENT(properties_element) ||
8632       IS_GROUP_ELEMENT(properties_element) ||
8633       IS_EMPTY_ELEMENT(properties_element))
8634     MapLevelEditorToolboxCustomGadgets();
8635 }
8636
8637 static void UnmapLevelEditorToolboxCustomGadgets(void)
8638 {
8639   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
8640 }
8641
8642 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
8643 {
8644   int i;
8645
8646   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
8647   {
8648     if (i != GADGET_ID_SINGLE_ITEMS &&
8649         i != GADGET_ID_PICK_ELEMENT)
8650     {
8651       struct GadgetInfo *gi = level_editor_gadget[i];
8652
8653       if (map)
8654       {
8655         MapGadget(gi);
8656       }
8657       else
8658       {
8659         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
8660         struct GraphicInfo *gd = &graphic_info[graphic];
8661
8662         UnmapGadget(gi);
8663
8664         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
8665                    gi->width, gi->height, gi->x, gi->y);
8666
8667         redraw_mask |= REDRAW_DOOR_3;
8668       }
8669     }
8670   }
8671 }
8672
8673 static void MapLevelEditorToolboxDrawingGadgets(void)
8674 {
8675   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
8676 }
8677
8678 static void UnmapLevelEditorToolboxDrawingGadgets(void)
8679 {
8680   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
8681 }
8682
8683 static void UnmapDrawingArea(int id)
8684 {
8685   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
8686 }
8687
8688 static void UnmapLevelEditorFieldGadgets(void)
8689 {
8690   int i;
8691
8692   for (i = 0; i < num_editor_gadgets; i++)
8693     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
8694                           level_editor_gadget[i]->y))
8695       UnmapGadget(level_editor_gadget[i]);
8696 }
8697
8698 void UnmapLevelEditorGadgets(void)
8699 {
8700   int i;
8701
8702   for (i = 0; i < num_editor_gadgets; i++)
8703     UnmapGadget(level_editor_gadget[i]);
8704 }
8705
8706 static void ResetUndoBuffer(void)
8707 {
8708   undo_buffer_position = -1;
8709   undo_buffer_steps = -1;
8710   redo_buffer_steps = 0;
8711
8712   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
8713
8714   level.changed = FALSE;
8715 }
8716
8717 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
8718 {
8719   if (remap_toolbox_gadgets)
8720   {
8721     ModifyEditorElementList();
8722     RedrawDrawingElements();
8723   }
8724
8725   if (edit_mode == ED_MODE_LEVELCONFIG)
8726     DrawLevelConfigWindow();
8727   else if (edit_mode == ED_MODE_PROPERTIES)
8728     DrawPropertiesWindow();
8729   else if (edit_mode == ED_MODE_PALETTE)
8730     DrawPaletteWindow();
8731   else  // edit_mode == ED_MODE_DRAWING
8732     DrawDrawingWindowExt(remap_toolbox_gadgets);
8733 }
8734
8735 static void DrawEditModeWindow(void)
8736 {
8737   DrawEditModeWindowExt(TRUE);
8738 }
8739
8740 static void DrawEditModeWindow_PlayfieldOnly(void)
8741 {
8742   DrawEditModeWindowExt(FALSE);
8743 }
8744
8745 static void ChangeEditModeWindow(int new_edit_mode)
8746 {
8747   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
8748
8749   DrawEditModeWindow();
8750 }
8751
8752 static boolean LevelChanged(void)
8753 {
8754   boolean field_changed = FALSE;
8755   int x, y;
8756
8757   for (y = 0; y < lev_fieldy; y++)
8758     for (x = 0; x < lev_fieldx; x++)
8759       if (Tile[x][y] != level.field[x][y])
8760         field_changed = TRUE;
8761
8762   return (level.changed || field_changed);
8763 }
8764
8765 static boolean PrepareSavingIntoPersonalLevelSet(void)
8766 {
8767   static LevelDirTree *last_copied_leveldir = NULL;
8768   static LevelDirTree *last_written_leveldir = NULL;
8769   static int last_copied_level_nr = -1;
8770   static int last_written_level_nr = -1;
8771   LevelDirTree *leveldir_former = leveldir_current;
8772   int level_nr_former = level_nr;
8773   int new_level_nr;
8774
8775   // remember last mod/save so that for current session, we write
8776   // back to the same personal copy, asking only about overwrite.
8777   if (leveldir_current == last_copied_leveldir &&
8778       level_nr == last_copied_level_nr)
8779   {
8780     // "cd" to personal level set dir (as used when writing last copy)
8781     leveldir_current = last_written_leveldir;
8782     level_nr = last_written_level_nr;
8783
8784     return TRUE;
8785   }
8786
8787   if (!Request("This level is read-only! "
8788                "Save into personal level set?", REQ_ASK))
8789     return FALSE;
8790
8791   // "cd" to personal level set dir (for writing copy the first time)
8792   leveldir_current =
8793     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
8794
8795   // this may happen if "setup.internal.create_user_levelset" is FALSE
8796   // or if file "levelinfo.conf" is missing in personal user level set
8797   if (leveldir_current == NULL)
8798   {
8799     Request("Cannot find personal level set?!", REQ_CONFIRM);
8800
8801     leveldir_current = leveldir_former;
8802
8803     return FALSE;
8804   }
8805
8806   // find unused level number
8807   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
8808   {
8809     static char *level_filename = NULL;
8810
8811     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
8812
8813     if (!fileExists(level_filename))
8814       break;
8815   }
8816
8817   last_copied_leveldir = leveldir_former;
8818   last_copied_level_nr = level_nr_former;
8819
8820   last_written_leveldir = leveldir_current;
8821   last_written_level_nr = level_nr = new_level_nr;
8822
8823   return TRUE;
8824 }
8825
8826 static void ModifyLevelConfigForSavingIntoPersonalLevelSet(char *former_name)
8827 {
8828   static char *filename_levelinfo = NULL, *mod_name = NULL;
8829   FILE *file;
8830
8831   // annotate this copy-and-mod in personal levelinfo.conf
8832   setString(&filename_levelinfo,
8833             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
8834
8835   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
8836   {
8837     fprintf(file, "\n");
8838     fprintf(file, "# level %d was modified from:\n", level_nr);
8839     fprintf(file, "# - previous level set name:    %s\n",
8840             former_name);
8841     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
8842             level.file_info.nr, level.name);
8843     fprintf(file, "# - previous author:            %s\n",
8844             level.author);
8845     fprintf(file, "# - previous save date:         ");
8846
8847     if (level.creation_date.src == DATE_SRC_LEVELFILE)
8848     {
8849       fprintf(file, "%04d-%02d-%02d\n",
8850               level.creation_date.year,
8851               level.creation_date.month,
8852               level.creation_date.day);
8853     }
8854     else
8855     {
8856       fprintf(file, "not recorded\n");
8857     }
8858
8859     fclose(file);
8860   }
8861
8862   if (level_nr > leveldir_current->last_level)
8863     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
8864
8865   // else: allow the save even if annotation failed
8866
8867   // now... spray graffiti on the old level vital statistics
8868   // user can change these; just trying to set a good baseline
8869
8870   // don't truncate names for fear of making offensive or silly:
8871   // long-named original author only recorded in levelinfo.conf.
8872   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
8873   if (!strEqual(level.author, leveldir_current->author))
8874   {
8875     setString(&mod_name, getStringCat3(leveldir_current->author,
8876                                        " after ", level.author));
8877
8878     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8879       setString(&mod_name,
8880                 getStringCat2(leveldir_current->author, " (ed.)"));
8881
8882     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8883       setString(&mod_name, leveldir_current->author);
8884
8885     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
8886
8887     // less worried about truncation here
8888     setString(&mod_name, getStringCat2("Mod: ", level.name));
8889     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
8890   }
8891 }
8892
8893 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
8894                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
8895 {
8896   int x, y;
8897
8898   for (x = 0; x < lev_fieldx; x++)
8899     for (y = 0; y < lev_fieldy; y++)
8900       dst[x][y] = src[x][y];
8901 }
8902
8903 static int setSelectboxValue(int selectbox_id, int new_value)
8904 {
8905   int new_index_value = 0;
8906   int i;
8907
8908   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
8909     if (selectbox_info[selectbox_id].options[i].value == new_value)
8910       new_index_value = i;
8911
8912   *selectbox_info[selectbox_id].value =
8913     selectbox_info[selectbox_id].options[new_index_value].value;
8914
8915   return new_index_value;
8916 }
8917
8918 static void setSelectboxSpecialActionVariablesIfNeeded(void)
8919 {
8920   int i;
8921
8922   // change action mode and arg variables according to action type variable
8923   for (i = 0; action_arg_options[i].value != -1; i++)
8924   {
8925     if (action_arg_options[i].value == custom_element_change.action_type)
8926     {
8927       int mode = action_arg_options[i].mode;
8928
8929       // only change if corresponding selectbox has changed
8930       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
8931           action_arg_modes[mode])
8932         custom_element_change.action_mode = -1;
8933
8934       // only change if corresponding selectbox has changed
8935       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
8936           action_arg_options[i].options)
8937         custom_element_change.action_arg = -1;
8938
8939       break;
8940     }
8941   }
8942 }
8943
8944 static void setSelectboxSpecialActionOptions(void)
8945 {
8946   int i;
8947
8948   // change action mode and arg selectbox according to action type selectbox
8949   for (i = 0; action_arg_options[i].value != -1; i++)
8950   {
8951     if (action_arg_options[i].value == custom_element_change.action_type)
8952     {
8953       int mode = action_arg_options[i].mode;
8954
8955       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
8956                                    action_arg_modes[mode]);
8957       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
8958                                  custom_element_change.action_mode);
8959
8960       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
8961                                    action_arg_options[i].options);
8962       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
8963                                  custom_element_change.action_arg);
8964       break;
8965     }
8966   }
8967 }
8968
8969 static void copy_custom_element_settings(int element_from, int element_to)
8970 {
8971   struct ElementInfo *ei_from = &element_info[element_from];
8972   struct ElementInfo *ei_to = &element_info[element_to];
8973
8974   copyElementInfo(ei_from, ei_to);
8975 }
8976
8977 static void replace_custom_element_in_settings(int element_from,
8978                                                int element_to)
8979 {
8980   int i, j, x, y;
8981
8982   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8983   {
8984     struct ElementInfo *ei = &element_info[i];
8985
8986     for (y = 0; y < 3; y++)
8987       for (x = 0; x < 3; x++)
8988         if (ei->content.e[x][y] == element_from)
8989           ei->content.e[x][y] = element_to;
8990
8991     for (j = 0; j < ei->num_change_pages; j++)
8992     {
8993       struct ElementChangeInfo *change = &ei->change_page[j];
8994
8995       if (change->target_element == element_from)
8996         change->target_element = element_to;
8997
8998       if (change->initial_trigger_element == element_from)
8999         change->initial_trigger_element = element_to;
9000
9001       if (change->action_element == element_from)
9002         change->action_element = element_to;
9003
9004       for (y = 0; y < 3; y++)
9005         for (x = 0; x < 3; x++)
9006           if (change->target_content.e[x][y] == element_from)
9007             change->target_content.e[x][y] = element_to;
9008     }
9009
9010     if (ei->group != NULL)                              // group or internal
9011       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
9012         if (ei->group->element[j] == element_from)
9013           ei->group->element[j] = element_to;
9014   }
9015 }
9016
9017 static void replace_custom_element_in_playfield(int element_from,
9018                                                 int element_to)
9019 {
9020   int x, y;
9021
9022   for (x = 0; x < lev_fieldx; x++)
9023     for (y = 0; y < lev_fieldy; y++)
9024       if (Tile[x][y] == element_from)
9025         Tile[x][y] = element_to;
9026 }
9027
9028 static boolean CopyCustomElement(int element_old, int element_new,
9029                                  int copy_mode)
9030 {
9031   int copy_mode_orig = copy_mode;
9032
9033   if (copy_mode == GADGET_ID_CUSTOM_COPY)
9034   {
9035     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
9036                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9037     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9038   }
9039   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
9040   {
9041     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
9042                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9043     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9044
9045     level.changed = TRUE;
9046   }
9047   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
9048   {
9049     Request("Please choose custom element!", REQ_CONFIRM);
9050
9051     return FALSE;
9052   }
9053   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
9054   {
9055     Request("Please choose group element!", REQ_CONFIRM);
9056
9057     return FALSE;
9058   }
9059   else if (IS_EMPTY_ELEMENT(element_old) && !IS_EMPTY_ELEMENT(element_new))
9060   {
9061     Request("Please choose empty element!", REQ_CONFIRM);
9062
9063     return FALSE;
9064   }
9065   else
9066   {
9067     level.changed = TRUE;
9068   }
9069
9070   // when modifying custom/group element, ask for copying level template
9071   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
9072   {
9073     if (!AskToCopyAndModifyLevelTemplate())
9074       return FALSE;
9075   }
9076
9077   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
9078   {
9079     copy_custom_element_settings(element_new, element_old);
9080   }
9081   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
9082   {
9083     copy_custom_element_settings(element_old, element_new);
9084   }
9085   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
9086   {
9087     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
9088     copy_custom_element_settings(element_new, element_old);
9089     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
9090
9091     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
9092     replace_custom_element_in_settings(element_new, element_old);
9093     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
9094
9095     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
9096     replace_custom_element_in_playfield(element_new, element_old);
9097     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
9098   }
9099
9100   UpdateCustomElementGraphicGadgets();
9101   DrawPropertiesWindow();
9102
9103   return TRUE;
9104 }
9105
9106 static void CopyCustomElementPropertiesToEditor(int element)
9107 {
9108   int i;
9109   int current_change_page = element_info[element].current_change_page;
9110
9111   // dynamically (re)build selectbox for selecting change page
9112   for (i = 0; i < element_info[element].num_change_pages; i++)
9113   {
9114     sprintf(options_change_page_strings[i], "%d", i + 1);
9115
9116     options_change_page[i].value = i;
9117     options_change_page[i].text = options_change_page_strings[i];
9118   }
9119
9120   options_change_page[i].value = -1;
9121   options_change_page[i].text = NULL;
9122
9123   // needed here to initialize combined element properties
9124   InitElementPropertiesEngine(level.game_version);
9125
9126   element_info[element].change =
9127     &element_info[element].change_page[current_change_page];
9128
9129   custom_element = element_info[element];
9130   custom_element_change = *element_info[element].change;
9131
9132   // needed to initially set selectbox options for special action options
9133   setSelectboxSpecialActionOptions();
9134
9135   // needed to initially set selectbox value variables to reliable defaults
9136   for (i = 0; i < ED_NUM_SELECTBOX; i++)
9137     setSelectboxValue(i, *selectbox_info[i].value);
9138
9139   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9140     custom_element_properties[i] = HAS_PROPERTY(element, i);
9141
9142   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9143     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
9144
9145   // ---------- element settings: configure (custom elements) -----------------
9146
9147   // set accessible layer selectbox help value
9148   custom_element.access_type =
9149     (IS_WALKABLE(element) ? EP_WALKABLE :
9150      IS_PASSABLE(element) ? EP_PASSABLE :
9151      custom_element.access_type);
9152   custom_element.access_layer =
9153     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
9154      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
9155      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
9156      custom_element.access_layer);
9157   custom_element.access_protected =
9158     (IS_PROTECTED(element) ? 1 : 0);
9159   custom_element_properties[EP_ACCESSIBLE] =
9160     (IS_ACCESSIBLE_OVER(element) ||
9161      IS_ACCESSIBLE_INSIDE(element) ||
9162      IS_ACCESSIBLE_UNDER(element));
9163
9164   // set walk-to-object action selectbox help value
9165   custom_element.walk_to_action =
9166     (IS_DIGGABLE(element) ? EP_DIGGABLE :
9167      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
9168      IS_DROPPABLE(element) ? EP_DROPPABLE :
9169      IS_THROWABLE(element) ? EP_THROWABLE :
9170      IS_PUSHABLE(element) ? EP_PUSHABLE :
9171      custom_element.walk_to_action);
9172   custom_element_properties[EP_WALK_TO_OBJECT] =
9173     (IS_DIGGABLE(element) ||
9174      IS_COLLECTIBLE_ONLY(element) ||
9175      IS_DROPPABLE(element) ||
9176      IS_THROWABLE(element) ||
9177      IS_PUSHABLE(element));
9178
9179   // set smash targets selectbox help value
9180   custom_element.smash_targets =
9181     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
9182      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
9183      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
9184      custom_element.smash_targets);
9185   custom_element_properties[EP_CAN_SMASH] =
9186     (CAN_SMASH_EVERYTHING(element) ||
9187      CAN_SMASH_ENEMIES(element) ||
9188      CAN_SMASH_PLAYER(element));
9189
9190   // set deadliness selectbox help value
9191   custom_element.deadliness =
9192     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
9193      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
9194      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
9195      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
9196      custom_element.deadliness);
9197   custom_element_properties[EP_DEADLY] =
9198     (DONT_TOUCH(element) ||
9199      DONT_GET_HIT_BY(element) ||
9200      DONT_COLLIDE_WITH(element) ||
9201      DONT_RUN_INTO(element));
9202
9203   // ---------- element settings: advanced (custom elements) ------------------
9204
9205   // set "change by direct action" selectbox help value
9206   custom_element_change.direct_action =
9207     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
9208      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
9209      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
9210      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
9211      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
9212      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
9213      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
9214      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
9215      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
9216      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
9217      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
9218      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
9219      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
9220      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
9221      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
9222      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
9223      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
9224      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
9225      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
9226      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
9227      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
9228      custom_element_change.direct_action);
9229
9230   // set "change by other element action" selectbox help value
9231   custom_element_change.other_action =
9232     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
9233      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
9234      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
9235      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
9236      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
9237      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
9238      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
9239      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
9240      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
9241      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
9242      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
9243      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
9244      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
9245      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
9246      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
9247      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
9248      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
9249      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
9250      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
9251      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
9252      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
9253      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
9254      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
9255      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
9256      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
9257      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
9258      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
9259      custom_element_change.other_action);
9260 }
9261
9262 static void CopyGroupElementPropertiesToEditor(int element)
9263 {
9264   group_element_info = *element_info[element].group;
9265   custom_element = element_info[element];       // needed for description
9266 }
9267
9268 static void CopyEmptyElementPropertiesToEditor(int element)
9269 {
9270   custom_element = element_info[element];
9271 }
9272
9273 static void CopyClassicElementPropertiesToEditor(int element)
9274 {
9275   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9276     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
9277       getMoveIntoAcidProperty(&level, element);
9278
9279   if (MAYBE_DONT_COLLIDE_WITH(element))
9280     custom_element_properties[EP_DONT_COLLIDE_WITH] =
9281       getDontCollideWithProperty(&level, element);
9282 }
9283
9284 static void CopyElementPropertiesToEditor(int element)
9285 {
9286   if (IS_CUSTOM_ELEMENT(element))
9287     CopyCustomElementPropertiesToEditor(element);
9288   else if (IS_GROUP_ELEMENT(element))
9289     CopyGroupElementPropertiesToEditor(element);
9290   else if (IS_EMPTY_ELEMENT(element))
9291     CopyEmptyElementPropertiesToEditor(element);
9292   else
9293     CopyClassicElementPropertiesToEditor(element);
9294 }
9295
9296 static boolean AskToCopyAndModifyLevelTemplate(void)
9297 {
9298   if (Request("Copy and modify settings from level template?", REQ_ASK))
9299   {
9300     level.use_custom_template = FALSE;
9301
9302     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
9303                  GDI_CHECKED, FALSE, GDI_END);
9304     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
9305                  GDI_CHECKED, FALSE, GDI_END);
9306
9307     return TRUE;
9308   }
9309   else
9310   {
9311     LoadLevelTemplate(-1);      // this resets all element modifications ...
9312
9313     DrawEditModeWindow();       // ... and copies them to 'custom_element'
9314
9315     return FALSE;
9316   }
9317 }
9318
9319 static void CopyCustomElementPropertiesToGame(int element)
9320 {
9321   int i;
9322   int access_type_and_layer;
9323
9324   // mark that this custom element has been modified
9325   custom_element.modified_settings = TRUE;
9326   level.changed = TRUE;
9327
9328   if (level.use_custom_template)
9329     AskToCopyAndModifyLevelTemplate();
9330
9331   element_info[element] = custom_element;
9332   *element_info[element].change = custom_element_change;
9333
9334   // ---------- element settings: configure (custom elements) -----------------
9335
9336   // set accessible property from checkbox and selectbox
9337   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
9338   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
9339   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
9340   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
9341   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
9342   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
9343   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
9344                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
9345                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
9346   custom_element_properties[access_type_and_layer] =
9347     custom_element_properties[EP_ACCESSIBLE];
9348   custom_element_properties[EP_PROTECTED] =
9349     (custom_element.access_protected != 0 &&
9350      custom_element_properties[EP_ACCESSIBLE]);
9351
9352   // set walk-to-object property from checkbox and selectbox
9353   custom_element_properties[EP_DIGGABLE] = FALSE;
9354   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
9355   custom_element_properties[EP_DROPPABLE] = FALSE;
9356   custom_element_properties[EP_THROWABLE] = FALSE;
9357   custom_element_properties[EP_PUSHABLE] = FALSE;
9358   custom_element_properties[custom_element.walk_to_action] =
9359     custom_element_properties[EP_WALK_TO_OBJECT];
9360
9361   // set smash property from checkbox and selectbox
9362   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
9363   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
9364   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
9365   custom_element_properties[custom_element.smash_targets] =
9366     custom_element_properties[EP_CAN_SMASH];
9367
9368   // set deadliness property from checkbox and selectbox
9369   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
9370   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
9371   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
9372   custom_element_properties[EP_DONT_TOUCH] = FALSE;
9373   custom_element_properties[custom_element.deadliness] =
9374     custom_element_properties[EP_DEADLY];
9375
9376   // ---------- element settings: advanced (custom elements) ------------------
9377
9378   // set player change event from checkbox and selectbox
9379   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
9380   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
9381   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
9382   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
9383   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
9384   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
9385   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
9386   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
9387   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
9388   custom_element_change_events[CE_SWITCHED] = FALSE;
9389   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
9390   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
9391   custom_element_change_events[CE_BLOCKED] = FALSE;
9392   custom_element_change_events[CE_IMPACT] = FALSE;
9393   custom_element_change_events[CE_SMASHED] = FALSE;
9394   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
9395   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
9396   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
9397   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
9398   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
9399   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
9400   custom_element_change_events[custom_element_change.direct_action] =
9401     custom_element_change_events[CE_BY_DIRECT_ACTION];
9402
9403   // set other element action change event from checkbox and selectbox
9404   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
9405   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
9406   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
9407   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
9408   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
9409   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
9410   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
9411   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
9412   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
9413   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
9414   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
9415   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
9416   custom_element_change_events[CE_TOUCHING_X] = FALSE;
9417   custom_element_change_events[CE_HITTING_X] = FALSE;
9418   custom_element_change_events[CE_DIGGING_X] = FALSE;
9419   custom_element_change_events[CE_HIT_BY_X] = FALSE;
9420   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
9421   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
9422   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
9423   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
9424   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
9425   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
9426   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
9427   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
9428   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
9429   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
9430   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
9431   custom_element_change_events[custom_element_change.other_action] =
9432     custom_element_change_events[CE_BY_OTHER_ACTION];
9433
9434   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9435     SET_PROPERTY(element, i, custom_element_properties[i]);
9436
9437   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9438     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
9439
9440   // copy change events also to special level editor variable
9441   custom_element = element_info[element];
9442   custom_element_change = *element_info[element].change;
9443
9444   // needed here to restore runtime value "element_info[element].gfx_element"
9445   InitElementPropertiesGfxElement();
9446 }
9447
9448 static void CopyGroupElementPropertiesToGame(int element)
9449 {
9450   // mark that this group element has been modified
9451   custom_element.modified_settings = TRUE;
9452   level.changed = TRUE;
9453
9454   if (level.use_custom_template)
9455     AskToCopyAndModifyLevelTemplate();
9456
9457   element_info[element] = custom_element;
9458   *element_info[element].group = group_element_info;
9459
9460   // needed here to restore runtime value "element_info[element].gfx_element"
9461   InitElementPropertiesGfxElement();
9462 }
9463
9464 static void CopyEmptyElementPropertiesToGame(int element)
9465 {
9466   // mark that this empty element has been modified
9467   custom_element.modified_settings = TRUE;
9468   level.changed = TRUE;
9469
9470   if (level.use_custom_template)
9471     AskToCopyAndModifyLevelTemplate();
9472
9473   element_info[element] = custom_element;
9474
9475   // needed here to restore runtime value "element_info[element].gfx_element"
9476   InitElementPropertiesGfxElement();
9477 }
9478
9479 static void CopyClassicElementPropertiesToGame(int element)
9480 {
9481   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9482     setMoveIntoAcidProperty(&level, element,
9483                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
9484
9485   if (MAYBE_DONT_COLLIDE_WITH(element))
9486     setDontCollideWithProperty(&level, element,
9487                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
9488 }
9489
9490 static void CopyElementPropertiesToGame(int element)
9491 {
9492   if (IS_CUSTOM_ELEMENT(element))
9493     CopyCustomElementPropertiesToGame(element);
9494   else if (IS_GROUP_ELEMENT(element))
9495     CopyGroupElementPropertiesToGame(element);
9496   else if (IS_EMPTY_ELEMENT(element))
9497     CopyEmptyElementPropertiesToGame(element);
9498   else
9499     CopyClassicElementPropertiesToGame(element);
9500 }
9501
9502 #if DEBUG
9503 static void CheckElementDescriptions(void)
9504 {
9505   int i;
9506
9507   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9508     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
9509       Warn("no element description file for element '%s'", EL_NAME(i));
9510 }
9511 #endif
9512
9513 static int getMaxEdFieldX(boolean has_scrollbar)
9514 {
9515   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
9516   int sxsize = SXSIZE - scrollbar_width;
9517   int max_ed_fieldx = sxsize / ed_tilesize;
9518
9519   return max_ed_fieldx;
9520 }
9521
9522 static int getMaxEdFieldY(boolean has_scrollbar)
9523 {
9524   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
9525                          INFOTEXT_YSIZE_FULL : 0);
9526   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
9527   int sysize = SYSIZE - scrollbar_height - infotext_height;
9528   int max_ed_fieldy = sysize / ed_tilesize;
9529
9530   return max_ed_fieldy;
9531 }
9532
9533 static void InitZoomLevelSettings(int zoom_tilesize)
9534 {
9535   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
9536
9537   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
9538   {
9539     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
9540     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
9541
9542     // make sure that tile size is always a power of 2
9543     ed_tilesize = (1 << log_2(ed_tilesize));
9544
9545     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9546     {
9547       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
9548       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
9549     }
9550   }
9551
9552   last_game_engine_type = level.game_engine_type;
9553
9554   // limit zoom tilesize by upper and lower bound
9555   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
9556
9557   // store zoom tilesize in auto setup file only if it was manually changed
9558   if (zoom_tilesize != -1)
9559     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
9560
9561   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
9562   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
9563 }
9564
9565 static void InitDrawingElements(void)
9566 {
9567   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
9568
9569   if (level.game_engine_type == game_engine_type_last)
9570     return;
9571
9572   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
9573   {
9574     new_element1 = EL_BD_WALL;
9575     new_element2 = EL_EMPTY;
9576     new_element3 = EL_BD_SAND;
9577   }
9578   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
9579   {
9580     new_element1 = EL_SP_CHIP_SINGLE;
9581     new_element2 = EL_EMPTY;
9582     new_element3 = EL_SP_BASE;
9583   }
9584   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9585   {
9586     new_element1 = EL_MM_MIRROR_START;
9587     new_element2 = EL_EMPTY;
9588     new_element3 = EL_MM_WOODEN_WALL;
9589   }
9590   else
9591   {
9592     new_element1 = EL_WALL;
9593     new_element2 = EL_EMPTY;
9594     new_element3 = EL_SAND;
9595   }
9596
9597   game_engine_type_last = level.game_engine_type;
9598 }
9599
9600 static void InitLevelSetInfo(void)
9601 {
9602   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
9603            "%s", leveldir_current->name);
9604   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
9605            "%s", leveldir_current->author);
9606
9607   levelset_num_levels = leveldir_current->levels;
9608
9609   levelset_use_levelset_artwork = FALSE;
9610   levelset_copy_level_template = FALSE;
9611
9612   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
9613 }
9614
9615 static void ChangeEditorToLevelSet(char *levelset_subdir)
9616 {
9617   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
9618
9619   // the previous level set might have used custom artwork
9620   ReloadCustomArtwork(0);
9621
9622   LoadLevelSetup_SeriesInfo();
9623
9624   SaveLevelSetup_LastSeries();
9625   SaveLevelSetup_SeriesInfo();
9626
9627   TapeErase();
9628
9629   LoadLevel(level_nr);
9630   LoadScore(level_nr);
9631
9632   DrawLevelEd();
9633 }
9634
9635 static boolean useEditorDoorAnimation(void)
9636 {
9637   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
9638   boolean door_1_viewport_unchanged =
9639     (vp_door_1->x      == DX     &&
9640      vp_door_1->y      == DY     &&
9641      vp_door_1->width  == DXSIZE &&
9642      vp_door_1->height == DYSIZE);
9643   boolean door_1_contains_toolbox =
9644     (EX >= DX &&
9645      EY >= DY &&
9646      EX + EXSIZE <= DX + DXSIZE &&
9647      EY + EYSIZE <= DY + DYSIZE);
9648
9649   return (door_1_viewport_unchanged && door_1_contains_toolbox);
9650 }
9651
9652 static void DrawEditorDoorBackground(int graphic, int x, int y,
9653                                      int width, int height)
9654 {
9655   struct GraphicInfo *g = &graphic_info[graphic];
9656
9657   if (g->bitmap != NULL)
9658     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
9659                MIN(width, g->width), MIN(height, g->height), x, y);
9660   else
9661     ClearRectangle(drawto, x, y, width, height);
9662 }
9663
9664 static void DrawEditorDoorContent(void)
9665 {
9666   // needed for gadgets drawn on background (like palette scrollbar)
9667   SetDoorBackgroundImage(IMG_UNDEFINED);
9668
9669   // copy default editor door content to main double buffer
9670   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
9671
9672   // draw bigger door
9673   DrawSpecialEditorDoor();
9674
9675   // draw new control window
9676   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
9677
9678   // draw all toolbox gadgets to editor doors
9679   MapControlButtons();
9680
9681   // when returning from test game to properties page, redraw toolbox gadgets
9682   if (edit_mode == ED_MODE_PROPERTIES)
9683   {
9684     UnmapLevelEditorToolboxDrawingGadgets();
9685     UnmapLevelEditorToolboxCustomGadgets();
9686
9687     MapLevelEditorToolboxCustomGadgetsIfNeeded();
9688   }
9689
9690   // draw all palette gadgets to editor doors
9691   ModifyEditorElementList();
9692   RedrawDrawingElements();
9693
9694   // copy actual editor door content to door double buffer for OpenDoor()
9695   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
9696 }
9697
9698 void DrawLevelEd(void)
9699 {
9700   int fade_mask = REDRAW_FIELD;
9701
9702   FadeSoundsAndMusic();
9703
9704   if (CheckFadeAll())
9705     fade_mask = REDRAW_ALL;
9706
9707   FadeOut(fade_mask);
9708
9709   // needed if different viewport properties defined for editor
9710   ChangeViewportPropertiesIfNeeded();
9711
9712   ClearField();
9713
9714   InitZoomLevelSettings(-1);
9715   InitDrawingElements();
9716   InitLevelSetInfo();
9717
9718 #if DEBUG
9719   CheckElementDescriptions();
9720 #endif
9721
9722   if (level_editor_test_game)
9723   {
9724     CopyPlayfield(level.field, Tile);
9725     CopyPlayfield(TileBackup, level.field);
9726
9727     level_editor_test_game = FALSE;
9728   }
9729   else
9730   {
9731     edit_mode = ED_MODE_DRAWING;
9732     edit_mode_levelconfig = ED_MODE_LEVELCONFIG_LEVEL;
9733     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
9734
9735     ResetUndoBuffer();
9736
9737     level_xpos = -1;
9738     level_ypos = -1;
9739   }
9740
9741   // redraw_mask |= REDRAW_ALL;
9742
9743   FreeLevelEditorGadgets();
9744   CreateLevelEditorGadgets();
9745
9746   ReinitializeElementList();            // update dynamic level element list
9747   ReinitializeElementListButtons();     // custom element may look different
9748
9749   InitElementPropertiesGfxElement();
9750
9751   UnmapAllGadgets();
9752
9753   DrawEditModeWindow_PlayfieldOnly();
9754
9755   DrawMaskedBorder(fade_mask);
9756
9757   // use door animation if door 1 viewport is unchanged and contains toolbox
9758   if (useEditorDoorAnimation())
9759   {
9760     FadeIn(fade_mask);
9761
9762     DrawEditorDoorContent();
9763
9764     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
9765   }
9766   else
9767   {
9768     DrawEditorDoorContent();
9769
9770     FadeIn(fade_mask);
9771   }
9772
9773   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
9774 }
9775
9776 static void AdjustDrawingAreaGadgets(void)
9777 {
9778   int ed_xsize = lev_fieldx + 2;
9779   int ed_ysize = lev_fieldy + 2;
9780   int max_ed_fieldx = MAX_ED_FIELDX;
9781   int max_ed_fieldy = MAX_ED_FIELDY;
9782   boolean horizontal_scrollbar_needed;
9783   boolean vertical_scrollbar_needed;
9784   int x, y, width, height;
9785
9786   if (suppressBorderElement())
9787   {
9788     ed_xsize = lev_fieldx;
9789     ed_ysize = lev_fieldy;
9790   }
9791
9792   // check if we need any scrollbars
9793   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9794   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9795
9796   // check if we have a smaller editor field because of scrollbars
9797   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9798   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9799
9800   // check again if we now need more scrollbars because of less space
9801   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9802   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9803
9804   // check if editor field gets even smaller after adding new scrollbars
9805   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9806   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9807
9808   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
9809   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
9810
9811   x = SX + ed_fieldx * ed_tilesize;
9812   y = SY + ed_fieldy * ed_tilesize;
9813
9814   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
9815   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
9816
9817   // adjust drawing area gadget
9818   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
9819                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
9820                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
9821                GDI_END);
9822
9823   // adjust horizontal scrollbar gadgets
9824   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
9825                GDI_Y, y,
9826                GDI_END);
9827   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
9828                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
9829                GDI_Y, y,
9830                GDI_END);
9831   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
9832                GDI_Y, y,
9833                GDI_WIDTH, width,
9834                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
9835                GDI_END);
9836
9837   // adjust vertical scrollbar gadgets
9838   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
9839                GDI_X, x,
9840                GDI_END);
9841   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
9842                GDI_X, x,
9843                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
9844                GDI_END);
9845   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
9846                GDI_X, x,
9847                GDI_HEIGHT, height,
9848                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
9849                GDI_END);
9850 }
9851
9852 static void AdjustLevelScrollPosition(void)
9853 {
9854   if (level_xpos < -1)
9855     level_xpos = -1;
9856   if (level_xpos > lev_fieldx - ed_fieldx + 1)
9857     level_xpos = lev_fieldx - ed_fieldx + 1;
9858   if (lev_fieldx < ed_fieldx - 2)
9859     level_xpos = -1;
9860
9861   if (level_ypos < -1)
9862     level_ypos = -1;
9863   if (level_ypos > lev_fieldy - ed_fieldy + 1)
9864     level_ypos = lev_fieldy - ed_fieldy + 1;
9865   if (lev_fieldy < ed_fieldy - 2)
9866     level_ypos = -1;
9867
9868   if (suppressBorderElement())
9869   {
9870     level_xpos = 0;
9871     level_ypos = 0;
9872   }
9873 }
9874
9875 static void AdjustEditorScrollbar(int id)
9876 {
9877   struct GadgetInfo *gi = level_editor_gadget[id];
9878   int items_max, items_visible, item_position;
9879
9880   if (id == GADGET_ID_SCROLL_HORIZONTAL)
9881   {
9882     items_max = MAX(lev_fieldx + 2, ed_fieldx);
9883     items_visible = ed_fieldx;
9884     item_position = level_xpos + 1;
9885   }
9886   else
9887   {
9888     items_max = MAX(lev_fieldy + 2, ed_fieldy);
9889     items_visible = ed_fieldy;
9890     item_position = level_ypos + 1;
9891   }
9892
9893   if (item_position > items_max - items_visible)
9894     item_position = items_max - items_visible;
9895
9896   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9897                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9898 }
9899
9900 static void AdjustElementListScrollbar(void)
9901 {
9902   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
9903   int items_max, items_visible, item_position;
9904
9905   // correct position of element list scrollbar
9906   if (element_shift < 0)
9907     element_shift = 0;
9908   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
9909     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
9910
9911   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
9912   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
9913   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
9914
9915   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9916                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
9917                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9918 }
9919
9920 static void ModifyEditorCounterValue(int counter_id, int new_value)
9921 {
9922   int *counter_value = counterbutton_info[counter_id].value;
9923   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9924   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9925
9926   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
9927
9928   if (counter_value != NULL)
9929     *counter_value = gi->textinput.number_value;
9930 }
9931
9932 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
9933 {
9934   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9935   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9936
9937   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
9938
9939   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
9940       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
9941   {
9942     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
9943     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
9944
9945     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
9946     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
9947                  GDI_END);
9948   }
9949 }
9950
9951 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
9952 {
9953   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9954   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9955   int new_index_value = setSelectboxValue(selectbox_id, new_value);
9956
9957   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
9958 }
9959
9960 static void ModifyEditorSelectboxOptions(int selectbox_id,
9961                                          struct ValueTextInfo *options)
9962 {
9963   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9964   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9965
9966   selectbox_info[selectbox_id].options = options;
9967
9968   // set index to zero -- list may be shorter now (correct later, if needed)
9969   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
9970                GDI_SELECTBOX_OPTIONS, options, GDI_END);
9971 }
9972
9973 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
9974 {
9975   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
9976   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9977
9978   drawingarea_info[drawingarea_id].area_xsize = xsize;
9979   drawingarea_info[drawingarea_id].area_ysize = ysize;
9980
9981   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
9982 }
9983
9984 static void ModifyEditorElementList(void)
9985 {
9986   int i;
9987
9988   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
9989     return;
9990
9991   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
9992   {
9993     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
9994     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9995     struct GadgetDesign *gd = &gi->deco.design;
9996     int element = editor_elements[element_shift + i];
9997     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
9998
9999     UnmapGadget(gi);
10000
10001     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
10002
10003     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
10004
10005     MapGadget(gi);
10006   }
10007 }
10008
10009 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
10010 {
10011   int graphic = el2edimg(element);
10012   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
10013
10014   if (pos->x == -1 &&
10015       pos->y == -1)
10016     return;
10017
10018   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
10019 }
10020
10021 static void ModifyDrawingElementButton(int element, int id)
10022 {
10023   struct GadgetInfo *gi = level_editor_gadget[id];
10024   Bitmap *deco_bitmap;
10025   int deco_x, deco_y;
10026   int tile_size = gi->deco.width;
10027
10028   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
10029
10030   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
10031 }
10032
10033 static void PickDrawingElement(int button, int element)
10034 {
10035   struct
10036   {
10037     int *new_element;
10038     struct XYTileSize *pos;
10039     int id;
10040   } de, drawing_elements[] =
10041   {
10042     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
10043     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
10044     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
10045   };
10046
10047   if (button < 1 || button > 3)
10048     return;
10049
10050   if (IS_MM_WALL(element))
10051     element = map_mm_wall_element(element);
10052
10053   de = drawing_elements[button - 1];
10054
10055   *de.new_element = element;    // update global drawing element variable
10056
10057   DrawDrawingElementGraphic(element, de.pos);
10058   ModifyDrawingElementButton(element, de.id);
10059
10060   redraw_mask |= REDRAW_DOOR_1;
10061 }
10062
10063 static void RedrawDrawingElements(void)
10064 {
10065   PickDrawingElement(1, new_element1);
10066   PickDrawingElement(2, new_element2);
10067   PickDrawingElement(3, new_element3);
10068 }
10069
10070 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
10071 {
10072   stick_element_properties_window = FALSE;
10073
10074   SetMainBackgroundImage(IMG_UNDEFINED);
10075   ClearField();
10076
10077   UnmapLevelEditorFieldGadgets();
10078
10079   AdjustDrawingAreaGadgets();
10080   AdjustLevelScrollPosition();
10081   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
10082   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
10083
10084   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10085
10086   MapMainDrawingArea();
10087
10088   if (remap_toolbox_gadgets)
10089   {
10090     UnmapLevelEditorToolboxCustomGadgets();
10091     MapLevelEditorToolboxDrawingGadgets();
10092   }
10093 }
10094
10095 static void DrawDrawingWindow(void)
10096 {
10097   DrawDrawingWindowExt(TRUE);
10098 }
10099
10100 static int getTabulatorBarWidth(void)
10101 {
10102   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10103   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
10104
10105   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
10106 }
10107
10108 static int getTabulatorBarHeight(void)
10109 {
10110   return ED_TAB_BAR_HEIGHT;
10111 }
10112
10113 static Pixel getTabulatorBarColor(void)
10114 {
10115   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10116   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10117   int gd_x = gd->x + gd_gi1->border.width / 2;
10118   int gd_y = gd->y + gd_gi1->height - 1;
10119
10120   return GetPixel(gd->bitmap, gd_x, gd_y);
10121 }
10122
10123 static void DrawLevelConfigTabulatorGadgets(void)
10124 {
10125   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10126   Pixel tab_color = getTabulatorBarColor();
10127   int id_first = ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL;
10128   int id_last  = ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR;
10129   int i;
10130
10131   // draw additional "engine" tabulator when using native BD engine
10132   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
10133     id_last = ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE;
10134
10135   for (i = id_first; i <= id_last; i++)
10136   {
10137     int gadget_id = textbutton_info[i].gadget_id;
10138     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10139     boolean active = (i != edit_mode_levelconfig);
10140
10141     // draw background line below tabulator button
10142     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10143
10144     // draw solid line below inactive tabulator buttons
10145     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10146       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10147                     ED_GADGET_TINY_DISTANCE, tab_color);
10148
10149     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10150     MapTextbuttonGadget(i);
10151   }
10152
10153   // draw little border line below tabulator buttons
10154   if (tab_color != BLACK_PIXEL)                 // black => transparent
10155     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10156                   ED_GADGET_TINY_DISTANCE,
10157                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10158 }
10159
10160 static void DrawPropertiesTabulatorGadgets(void)
10161 {
10162   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10163   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10164   int gd_x = gd->x + gd_gi1->border.width / 2;
10165   int gd_y = gd->y + gd_gi1->height - 1;
10166   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10167   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
10168   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
10169   int i;
10170
10171   // draw two config tabulators for player elements
10172   if (IS_PLAYER_ELEMENT(properties_element))
10173     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
10174
10175   // draw two config and one "change" tabulator for custom elements
10176   if (IS_CUSTOM_ELEMENT(properties_element))
10177     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
10178
10179   for (i = id_first; i <= id_last; i++)
10180   {
10181     int gadget_id = textbutton_info[i].gadget_id;
10182     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10183     boolean active = (i != edit_mode_properties);
10184
10185     // use "config 1" and "config 2" instead of "config" for players and CEs
10186     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
10187         (IS_PLAYER_ELEMENT(properties_element) ||
10188          IS_CUSTOM_ELEMENT(properties_element)))
10189       continue;
10190
10191     // draw background line below tabulator button
10192     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10193
10194     // draw solid line below inactive tabulator buttons
10195     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10196       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10197                     ED_GADGET_TINY_DISTANCE, tab_color);
10198
10199     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10200     MapTextbuttonGadget(i);
10201   }
10202
10203   // draw little border line below tabulator buttons
10204   if (tab_color != BLACK_PIXEL)                 // black => transparent
10205     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10206                   ED_GADGET_TINY_DISTANCE,
10207                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10208 }
10209
10210 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
10211 {
10212   DrawText(SX + xpos, SY + ypos, text, font_nr);
10213 }
10214
10215 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
10216                                            int xpos, int ypos)
10217 {
10218   int font_width = getFontWidth(font_nr);
10219   int font_height = getFontHeight(font_nr);
10220   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
10221   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
10222
10223   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
10224                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
10225                       TRUE, FALSE, FALSE);
10226 }
10227
10228 static void DrawLevelConfigLevel(void)
10229 {
10230   int i;
10231
10232   // draw counter gadgets
10233   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
10234     MapCounterButtons(i);
10235
10236   // draw checkbutton gadgets
10237   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
10238     MapCheckbuttonGadget(i);
10239
10240   // draw selectbox gadgets
10241   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
10242     MapSelectboxGadget(i);
10243
10244   // draw text input gadgets
10245   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
10246     MapTextInputGadget(i);
10247 }
10248
10249 static char *getLevelSubdirFromSaveMode(int save_mode)
10250 {
10251   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
10252     return getNewUserLevelSubdir();
10253
10254   return leveldir_current->subdir;
10255 }
10256
10257 static void DrawLevelConfigLevelSet_DirectoryInfo(void)
10258 {
10259   char *directory_text = "Level set directory:";
10260   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
10261   int font1_nr = FONT_TEXT_1;
10262   int font2_nr = FONT_TEXT_2;
10263   int font1_height = getFontHeight(font1_nr);
10264   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
10265   int x = ED_LEVEL_SETTINGS_X(0);
10266   int y = ED_LEVEL_SETTINGS_Y(6);
10267
10268   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
10269   PrintInfoText(directory_name, font2_nr, x, y);
10270 }
10271
10272 static void DrawLevelConfigLevelSet(void)
10273 {
10274   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
10275   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
10276   int i;
10277
10278   // draw counter gadgets
10279   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
10280     MapCounterButtons(i);
10281
10282   // draw checkbutton gadgets
10283   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
10284   {
10285     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
10286         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
10287         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
10288       continue;
10289
10290     MapCheckbuttonGadget(i);
10291   }
10292
10293   // draw selectbox gadgets
10294   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
10295     MapSelectboxGadget(i);
10296
10297   // draw text input gadgets
10298   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
10299     MapTextInputGadget(i);
10300
10301   // draw textbutton gadgets
10302   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
10303
10304   // draw info text
10305   DrawLevelConfigLevelSet_DirectoryInfo();
10306 }
10307
10308 static void DrawLevelConfigEditor(void)
10309 {
10310   int i;
10311
10312   // draw counter gadgets
10313   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
10314     MapCounterButtons(i);
10315
10316   // draw checkbutton gadgets
10317   for (i = ED_CHECKBUTTON_ID_EDITOR_FIRST; i <= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
10318     MapCheckbuttonGadget(i);
10319
10320   // draw radiobutton gadgets
10321   for (i = ED_RADIOBUTTON_ID_EDITOR_FIRST; i <= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
10322     MapRadiobuttonGadget(i);
10323
10324   // draw drawing area
10325   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
10326
10327   // draw textbutton gadgets
10328   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
10329 }
10330
10331 static void DrawLevelConfigEngine(void)
10332 {
10333   int i;
10334
10335   // draw counter gadgets
10336   if (level.bd_scheduling_type == GD_SCHEDULING_MILLISECONDS)
10337   {
10338     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_MS);
10339     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES);
10340   }
10341   else
10342   {
10343     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_C64);
10344     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS);
10345   }
10346
10347   // draw checkbutton gadgets
10348   for (i = ED_CHECKBUTTON_ID_ENGINE_FIRST; i <= ED_CHECKBUTTON_ID_ENGINE_LAST; i++)
10349     MapCheckbuttonGadget(i);
10350
10351   // draw selectbox gadgets
10352   for (i = ED_SELECTBOX_ID_ENGINE_FIRST; i <= ED_SELECTBOX_ID_ENGINE_LAST; i++)
10353     MapSelectboxGadget(i);
10354 }
10355
10356 static void DrawLevelConfigWindow(void)
10357 {
10358   char *text = "Global Settings";
10359   int font_nr = FONT_TITLE_1;
10360   struct MenuPosInfo *pos = &editor.settings.headline;
10361   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
10362   int sy = SY + pos->y;
10363
10364   stick_element_properties_window = FALSE;
10365
10366   SetAutomaticNumberOfGemsNeeded();
10367
10368   UnmapLevelEditorFieldGadgets();
10369
10370   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10371   ClearField();
10372
10373   DrawText(sx, sy, text, font_nr);
10374
10375   DrawLevelConfigTabulatorGadgets();
10376
10377   if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVEL)
10378     DrawLevelConfigLevel();
10379   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVELSET)
10380     DrawLevelConfigLevelSet();
10381   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_EDITOR)
10382     DrawLevelConfigEditor();
10383   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_ENGINE)
10384     DrawLevelConfigEngine();
10385 }
10386
10387 static void DrawCustomContentArea(void)
10388 {
10389   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
10390   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10391   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
10392   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
10393   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
10394   int xoffset = ED_GADGET_SPACE_DISTANCE;
10395
10396   // add distance for potential left text (without drawing area border)
10397   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
10398
10399   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10400
10401   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
10402 }
10403
10404 static void DrawCustomChangeContentArea(void)
10405 {
10406   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
10407   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10408   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
10409   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
10410   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
10411   int xoffset = ED_GADGET_SPACE_DISTANCE;
10412
10413   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10414
10415   MapDrawingArea(id);
10416 }
10417
10418 static void RemoveElementContentArea(int id, int font_height)
10419 {
10420   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10421
10422   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
10423                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
10424                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10425                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
10426                  ED_GADGET_TEXT_DISTANCE + font_height);
10427 }
10428
10429 static void DrawYamYamContentAreas(void)
10430 {
10431   int font_nr = FONT_TEXT_1;
10432   int font_height = getFontHeight(font_nr);
10433   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10434   int yoffset = (tilesize - font_height) / 2;
10435   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
10436   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
10437   int i;
10438
10439   // display counter to choose number of element content areas
10440   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
10441
10442   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10443   {
10444     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
10445
10446     if (i < level.num_yamyam_contents)
10447     {
10448       MapDrawingArea(id);
10449     }
10450     else
10451     {
10452       UnmapDrawingArea(id);
10453
10454       // delete content areas in case of reducing number of them
10455       RemoveElementContentArea(id, font_height);
10456     }
10457   }
10458
10459   DrawText(x, y + 0 * tilesize, "content", font_nr);
10460   DrawText(x, y + 1 * tilesize, "when",    font_nr);
10461   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
10462 }
10463
10464 static void DrawMagicBallContentAreas(void)
10465 {
10466   int font_nr = FONT_TEXT_1;
10467   int font_height = getFontHeight(font_nr);
10468   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10469   int yoffset = (tilesize - font_height) / 2;
10470   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
10471   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
10472   int i;
10473
10474   // display counter to choose number of element content areas
10475   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
10476
10477   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10478   {
10479     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
10480
10481     if (i < level.num_ball_contents)
10482     {
10483       MapDrawingArea(id);
10484     }
10485     else
10486     {
10487       UnmapDrawingArea(id);
10488
10489       // delete content areas in case of reducing number of them
10490       RemoveElementContentArea(id, font_height);
10491     }
10492   }
10493
10494   DrawText(x, y + 0 * tilesize, "generated", font_nr);
10495   DrawText(x, y + 1 * tilesize, "when",      font_nr);
10496   DrawText(x, y + 2 * tilesize, "active",    font_nr);
10497 }
10498
10499 static void DrawAndroidElementArea(void)
10500 {
10501   int id = ED_DRAWING_ID_ANDROID_CONTENT;
10502   int num_elements = level.num_android_clone_elements;
10503   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10504   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10505   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10506   int xsize = MAX_ANDROID_ELEMENTS;
10507   int ysize = 1;
10508
10509   // display counter to choose number of element areas
10510   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
10511
10512   if (drawingarea_info[id].text_left != NULL)
10513     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10514
10515   UnmapDrawingArea(id);
10516
10517   ModifyEditorDrawingArea(id, num_elements, 1);
10518
10519   // delete content areas in case of reducing number of them
10520   DrawBackground(sx, sy,
10521                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10522                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10523
10524   MapDrawingArea(id);
10525 }
10526
10527 static void DrawGroupElementArea(void)
10528 {
10529   int id = ED_DRAWING_ID_GROUP_CONTENT;
10530   int num_elements = group_element_info.num_elements;
10531   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10532   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10533   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10534   int xsize = MAX_ELEMENTS_IN_GROUP;
10535   int ysize = 1;
10536
10537   if (drawingarea_info[id].text_left != NULL)
10538     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10539
10540   UnmapDrawingArea(id);
10541
10542   ModifyEditorDrawingArea(id, num_elements, 1);
10543
10544   // delete content areas in case of reducing number of them
10545   DrawBackground(sx, sy,
10546                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10547                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10548
10549   MapDrawingArea(id);
10550 }
10551
10552 static void DrawPlayerInitialInventoryArea(int element)
10553 {
10554   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
10555   int player_nr = GET_PLAYER_NR(element);
10556   int num_elements = level.initial_inventory_size[player_nr];
10557   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10558   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10559   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10560   int xsize = MAX_INITIAL_INVENTORY_SIZE;
10561   int ysize = 1;
10562
10563   // determine horizontal position to the right of specified gadget
10564   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
10565     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
10566           ED_DRAWINGAREA_TEXT_DISTANCE);
10567
10568   // determine horizontal offset for leading text
10569   if (drawingarea_info[id].text_left != NULL)
10570     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10571
10572   UnmapDrawingArea(id);
10573
10574   ModifyEditorDrawingArea(id, num_elements, 1);
10575
10576   // delete content areas in case of reducing number of them
10577   DrawBackground(sx, sy,
10578                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10579                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10580
10581   MapDrawingArea(id);
10582 }
10583
10584 static void DrawMMBallContentArea(void)
10585 {
10586   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
10587   int num_elements = level.num_mm_ball_contents;
10588   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10589   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10590   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10591   int xsize = MAX_MM_BALL_CONTENTS;
10592   int ysize = 1;
10593
10594   if (drawingarea_info[id].text_left != NULL)
10595     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10596
10597   UnmapDrawingArea(id);
10598
10599   ModifyEditorDrawingArea(id, num_elements, 1);
10600
10601   // delete content areas in case of reducing number of them
10602   DrawBackground(sx, sy,
10603                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10604                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10605
10606   MapDrawingArea(id);
10607 }
10608
10609 static void DrawEnvelopeTextArea(int envelope_nr)
10610 {
10611   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
10612   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
10613
10614   UnmapGadget(gi);
10615
10616   DrawBackground(gi->x, gi->y,
10617                  gi->textarea.crop_width, gi->textarea.crop_height);
10618
10619   if (envelope_nr != -1)
10620     textarea_info[id].value = level.envelope[envelope_nr].text;
10621
10622   ModifyGadget(gi, GDI_AREA_SIZE,
10623                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
10624                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
10625                GDI_END);
10626
10627   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
10628 }
10629
10630 static void DrawPropertiesInfo(void)
10631 {
10632   static struct
10633   {
10634     int value;
10635     char *text;
10636   }
10637   properties[] =
10638   {
10639     // configurable properties
10640
10641     { EP_WALKABLE_OVER,         "- player can walk over it"             },
10642     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
10643     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
10644     { EP_PASSABLE_OVER,         "- player can pass over it"             },
10645     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
10646     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
10647     { EP_PROTECTED,             "- player is protected by it"           },
10648
10649     { EP_DIGGABLE,              "- can be digged away"                  },
10650     { EP_COLLECTIBLE,           "- can be collected"                    },
10651     { EP_DROPPABLE,             "- can be dropped after collecting"     },
10652     { EP_THROWABLE,             "- can be thrown after collecting"      },
10653     { EP_PUSHABLE,              "- can be pushed"                       },
10654
10655     { EP_CAN_FALL,              "- can fall"                            },
10656     { EP_CAN_MOVE,              "- can move"                            },
10657
10658     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
10659 #if 0
10660     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
10661 #endif
10662     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
10663
10664     { EP_SLIPPERY,              "- slippery for falling elements"       },
10665     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
10666
10667     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
10668     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
10669     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
10670     { EP_DONT_TOUCH,            "- deadly when touching"                },
10671
10672     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
10673
10674     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
10675     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
10676     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
10677
10678     { EP_CAN_CHANGE,            "- can change to other element"         },
10679
10680     // pre-defined properties
10681     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
10682     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
10683     { EP_SWITCHABLE,            "- can be switched"                     },
10684 #if 0
10685     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
10686 #endif
10687
10688     { -1,                       NULL                                    }
10689   };
10690   char *filename = getElementDescriptionFilename(properties_element);
10691   char *num_elements_text = "In this level: ";
10692   char *num_similar_text = "Similar tiles: ";
10693   char *properties_text = "Standard properties: ";
10694   char *description_text = "Description:";
10695   char *no_description_text = "No description available.";
10696   char *none_text = "None";
10697   float percentage;
10698   int num_elements_in_level = 0;
10699   int num_similar_in_level = 0;
10700   int num_hires_tiles_in_level = 0;
10701   int num_standard_properties = 0;
10702   int font1_nr = FONT_TEXT_1;
10703   int font2_nr = FONT_TEXT_2;
10704   int font1_width = getFontWidth(font1_nr);
10705   int font1_height = getFontHeight(font1_nr);
10706   int font2_height = getFontHeight(font2_nr);
10707   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
10708   int font2_yoffset = (font1_height - font2_height) / 2;
10709   int num_elements_text_len = strlen(num_elements_text) * font1_width;
10710   int num_similar_text_len = strlen(num_similar_text) * font1_width;
10711   int properties_text_len = strlen(properties_text) * font1_width;
10712   int xpos = ED_ELEMENT_SETTINGS_X(0);
10713   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10714   int i, x, y;
10715
10716   if (setup.editor.show_element_token)
10717   {
10718     int font3_nr = FONT_TEXT_3;
10719     int font3_height = getFontHeight(font3_nr);
10720
10721     DrawTextF(xpos, ypos, font3_nr,
10722               "[%s]", element_info[properties_element].token_name);
10723
10724     ypos += 2 * font3_height;
10725   }
10726
10727   // ----- print number of elements / percentage of this element in level
10728
10729   for (y = 0; y < lev_fieldy; y++)
10730   {
10731     for (x = 0; x < lev_fieldx; x++)
10732     {
10733       if (Tile[x][y] == properties_element)
10734       {
10735         num_elements_in_level++;
10736       }
10737       else if (IS_MM_WALL(Tile[x][y]) &&
10738                map_mm_wall_element(Tile[x][y]) == properties_element)
10739       {
10740         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
10741       }
10742     }
10743   }
10744
10745   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10746
10747   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
10748
10749   if (num_hires_tiles_in_level > 0)
10750     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10751               "%d wall tiles", num_hires_tiles_in_level);
10752   else if (num_elements_in_level > 0)
10753     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10754               "%d (%.2f %%)", num_elements_in_level, percentage);
10755   else
10756     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10757               none_text);
10758
10759   // ----- print number of similar elements / percentage of them in level
10760
10761   for (y = 0; y < lev_fieldy; y++)
10762   {
10763     for (x = 0; x < lev_fieldx; x++)
10764     {
10765       if (strEqual(element_info[Tile[x][y]].class_name,
10766                    element_info[properties_element].class_name))
10767       {
10768         num_similar_in_level++;
10769       }
10770     }
10771   }
10772
10773   if (num_similar_in_level != num_elements_in_level)
10774   {
10775     ypos += 1 * MAX(font1_height, font2_height);
10776
10777     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10778
10779     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
10780
10781     if (num_similar_in_level > 0)
10782       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10783                 "%d (%.2f %%)", num_similar_in_level, percentage);
10784     else
10785       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10786                 none_text);
10787   }
10788
10789   ypos += 2 * MAX(font1_height, font2_height);
10790
10791   // ----- print standard properties of this element
10792
10793   DrawTextS(xpos, ypos, font1_nr, properties_text);
10794
10795   ypos += line1_height;
10796
10797   for (i = 0; properties[i].value != -1; i++)
10798   {
10799     if (!HAS_PROPERTY(properties_element, properties[i].value))
10800       continue;
10801
10802     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
10803
10804     ypos += font2_height;
10805
10806     num_standard_properties++;
10807   }
10808
10809   if (num_standard_properties == 0)
10810   {
10811     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
10812               font2_nr, none_text);
10813
10814     ypos -= (line1_height - font1_height);
10815   }
10816
10817   ypos += MAX(font1_height, font2_height);
10818
10819   // ----- print special description of this element
10820
10821   PrintInfoText(description_text, font1_nr, xpos, ypos);
10822
10823   ypos += line1_height;
10824
10825   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
10826     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
10827 }
10828
10829 #define TEXT_COLLECTING         "Score for collecting"
10830 #define TEXT_COLLECTING_EXTRA   "Score for extra diamonds"
10831 #define TEXT_SMASHING           "Score for smashing"
10832 #define TEXT_SLURPING           "Score for slurping robot"
10833 #define TEXT_CRACKING           "Score for cracking"
10834 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
10835 #define TEXT_AMOEBA_THRESHOED   "Size for turning to rocks"
10836 #define TEXT_AMOEBA_SLOW_TIME   "Slow growth time (seconds)"
10837 #define TEXT_AMOEBA_SLOW_RATE   "Slow growth rate (percent)"
10838 #define TEXT_AMOEBA_FAST_RATE   "Fast growth rate (percent)"
10839 #define TEXT_DURATION           "Duration when activated"
10840 #define TEXT_DELAY_ON           "Delay before activating"
10841 #define TEXT_DELAY_OFF          "Delay before deactivating"
10842 #define TEXT_DELAY_CHANGING     "Delay before changing"
10843 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
10844 #define TEXT_DELAY_MOVING       "Delay before moving"
10845 #define TEXT_BALL_DELAY         "Element generation delay"
10846 #define TEXT_MOVE_SPEED         "Speed of android moving"
10847 #define TEXT_CLONE_SPEED        "Speed of android cloning"
10848 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
10849 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
10850 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
10851 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
10852 #define TEXT_TIME_BONUS         "Extra time to solve level"
10853 #define TEXT_TIME_PENALTY       "Time penalty if destroyed"
10854 #define TEXT_PERMEABILITY_RATE  "slime permeability rate"
10855 #define TEXT_PERMEABILITY_BITS  "slime permeability bits"
10856 #define TEXT_RANDOM_SEED        "slime random number seed"
10857
10858 static struct
10859 {
10860   int element;
10861   int *value;
10862   char *text;
10863   int min_value;
10864   int max_value;
10865 } elements_with_counter[] =
10866 {
10867   { EL_EMERALD,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10868   { EL_BD_DIAMOND,              &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10869   { EL_BD_DIAMOND,              &level.score[SC_DIAMOND_EXTRA],         TEXT_COLLECTING_EXTRA   },
10870   { EL_EMERALD_YELLOW,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10871   { EL_EMERALD_RED,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10872   { EL_EMERALD_PURPLE,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10873   { EL_SP_INFOTRON,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10874   { EL_DIAMOND,                 &level.score[SC_DIAMOND],               TEXT_COLLECTING         },
10875   { EL_CRYSTAL,                 &level.score[SC_CRYSTAL],               TEXT_COLLECTING         },
10876   { EL_PEARL,                   &level.score[SC_PEARL],                 TEXT_COLLECTING         },
10877   { EL_BUG,                     &level.score[SC_BUG],                   TEXT_SMASHING           },
10878   { EL_BUG_RIGHT,               &level.score[SC_BUG],                   TEXT_SMASHING           },
10879   { EL_BUG_UP,                  &level.score[SC_BUG],                   TEXT_SMASHING           },
10880   { EL_BUG_LEFT,                &level.score[SC_BUG],                   TEXT_SMASHING           },
10881   { EL_BUG_DOWN,                &level.score[SC_BUG],                   TEXT_SMASHING           },
10882   { EL_BD_BUTTERFLY,            &level.score[SC_BUG],                   TEXT_SMASHING           },
10883   { EL_BD_BUTTERFLY_RIGHT,      &level.score[SC_BUG],                   TEXT_SMASHING           },
10884   { EL_BD_BUTTERFLY_UP,         &level.score[SC_BUG],                   TEXT_SMASHING           },
10885   { EL_BD_BUTTERFLY_LEFT,       &level.score[SC_BUG],                   TEXT_SMASHING           },
10886   { EL_BD_BUTTERFLY_DOWN,       &level.score[SC_BUG],                   TEXT_SMASHING           },
10887   { EL_SP_ELECTRON,             &level.score[SC_BUG],                   TEXT_SMASHING           },
10888   { EL_SPACESHIP,               &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10889   { EL_SPACESHIP_RIGHT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10890   { EL_SPACESHIP_UP,            &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10891   { EL_SPACESHIP_LEFT,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10892   { EL_SPACESHIP_DOWN,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10893   { EL_BD_FIREFLY,              &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10894   { EL_BD_FIREFLY_RIGHT,        &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10895   { EL_BD_FIREFLY_UP,           &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10896   { EL_BD_FIREFLY_LEFT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10897   { EL_BD_FIREFLY_DOWN,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10898   { EL_SP_SNIKSNAK,             &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10899   { EL_YAMYAM,                  &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10900   { EL_YAMYAM_LEFT,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10901   { EL_YAMYAM_RIGHT,            &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10902   { EL_YAMYAM_UP,               &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10903   { EL_YAMYAM_DOWN,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10904   { EL_DARK_YAMYAM,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10905   { EL_ROBOT,                   &level.score[SC_ROBOT],                 TEXT_SMASHING           },
10906   { EL_PACMAN,                  &level.score[SC_PACMAN],                TEXT_SMASHING           },
10907   { EL_PACMAN_RIGHT,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
10908   { EL_PACMAN_UP,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
10909   { EL_PACMAN_LEFT,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
10910   { EL_PACMAN_DOWN,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
10911   { EL_NUT,                     &level.score[SC_NUT],                   TEXT_CRACKING           },
10912   { EL_DYNAMITE,                &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10913   { EL_EM_DYNAMITE,             &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10914   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10915   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10916   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10917   { EL_SHIELD_NORMAL,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
10918   { EL_SHIELD_DEADLY,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
10919   { EL_EXTRA_TIME,              &level.extra_time_score,                TEXT_COLLECTING         },
10920   { EL_KEY_1,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10921   { EL_KEY_2,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10922   { EL_KEY_3,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10923   { EL_KEY_4,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10924   { EL_EM_KEY_1,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10925   { EL_EM_KEY_2,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10926   { EL_EM_KEY_3,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10927   { EL_EM_KEY_4,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10928   { EL_EMC_KEY_5,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10929   { EL_EMC_KEY_6,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10930   { EL_EMC_KEY_7,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10931   { EL_EMC_KEY_8,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10932   { EL_DC_KEY_WHITE,            &level.score[SC_KEY],                   TEXT_COLLECTING         },
10933   { EL_MM_KETTLE,               &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10934   { EL_DF_CELL,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10935   { EL_MM_KEY,                  &level.score[SC_KEY],                   TEXT_COLLECTING         },
10936   { EL_MM_LIGHTBALL,            &level.score[SC_ELEM_BONUS],            TEXT_COLLECTING         },
10937   { EL_MM_PACMAN,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
10938   { EL_MM_PACMAN_RIGHT,         &level.score[SC_PACMAN],                TEXT_SMASHING           },
10939   { EL_MM_PACMAN_UP,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
10940   { EL_MM_PACMAN_LEFT,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
10941   { EL_MM_PACMAN_DOWN,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
10942   { EL_AMOEBA_WET,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10943   { EL_AMOEBA_DRY,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10944   { EL_AMOEBA_FULL,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10945   { EL_BD_AMOEBA,               &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10946   { EL_EMC_DRIPPER,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10947   { EL_BD_AMOEBA,               &level.bd_amoeba_threshold_too_big,     TEXT_AMOEBA_THRESHOED   },
10948   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_time,      TEXT_AMOEBA_SLOW_TIME   },
10949   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_rate,      TEXT_AMOEBA_SLOW_RATE,
10950                                 0, 100                                                          },
10951   { EL_BD_AMOEBA,               &level.bd_amoeba_fast_growth_rate,      TEXT_AMOEBA_FAST_RATE,
10952                                 0, 100                                                          },
10953   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_threshold_too_big,   TEXT_AMOEBA_THRESHOED   },
10954   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_time,    TEXT_AMOEBA_SLOW_TIME   },
10955   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_rate,    TEXT_AMOEBA_SLOW_RATE,
10956                                 0, 100                                                          },
10957   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_fast_growth_rate,    TEXT_AMOEBA_FAST_RATE,
10958                                 0, 100                                                          },
10959   { EL_MAGIC_WALL,              &level.time_magic_wall,                 TEXT_DURATION           },
10960   { EL_BD_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
10961   { EL_DC_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
10962   { EL_ROBOT_WHEEL,             &level.time_wheel,                      TEXT_DURATION           },
10963   { EL_TIMEGATE_SWITCH,         &level.time_timegate,                   TEXT_DURATION           },
10964   { EL_DC_TIMEGATE_SWITCH,      &level.time_timegate,                   TEXT_DURATION           },
10965   { EL_LIGHT_SWITCH,            &level.time_light,                      TEXT_DURATION           },
10966   { EL_LIGHT_SWITCH_ACTIVE,     &level.time_light,                      TEXT_DURATION           },
10967   { EL_SHIELD_NORMAL,           &level.shield_normal_time,              TEXT_DURATION           },
10968   { EL_SHIELD_DEADLY,           &level.shield_deadly_time,              TEXT_DURATION           },
10969   { EL_BD_CLOCK,                &level.bd_clock_extra_time,             TEXT_TIME_BONUS,
10970                                 -100, 100                                                       },
10971   { EL_BD_VOODOO_DOLL,          &level.bd_voodoo_penalty_time,          TEXT_TIME_PENALTY,
10972                                 0, 100                                                          },
10973   { EL_BD_SLIME,                &level.bd_slime_permeability_rate,      TEXT_PERMEABILITY_RATE,
10974                                 0, 100                                                          },
10975   { EL_BD_SLIME,                &level.bd_slime_permeability_bits_c64,  TEXT_PERMEABILITY_BITS,
10976                                 0, 255                                                          },
10977   { EL_BD_SLIME,                &level.bd_slime_random_seed_c64,        TEXT_RANDOM_SEED,
10978                                 -1, 65535                                                       },
10979   { EL_EXTRA_TIME,              &level.extra_time,                      TEXT_TIME_BONUS         },
10980   { EL_TIME_ORB_FULL,           &level.time_orb_time,                   TEXT_TIME_BONUS         },
10981   { EL_GAME_OF_LIFE,            &level.game_of_life[0],                 TEXT_GAME_OF_LIFE_1,0,8 },
10982   { EL_GAME_OF_LIFE,            &level.game_of_life[1],                 TEXT_GAME_OF_LIFE_2,0,8 },
10983   { EL_GAME_OF_LIFE,            &level.game_of_life[2],                 TEXT_GAME_OF_LIFE_3,0,8 },
10984   { EL_GAME_OF_LIFE,            &level.game_of_life[3],                 TEXT_GAME_OF_LIFE_4,0,8 },
10985   { EL_BIOMAZE,                 &level.biomaze[0],                      TEXT_GAME_OF_LIFE_1,0,8 },
10986   { EL_BIOMAZE,                 &level.biomaze[1],                      TEXT_GAME_OF_LIFE_2,0,8 },
10987   { EL_BIOMAZE,                 &level.biomaze[2],                      TEXT_GAME_OF_LIFE_3,0,8 },
10988   { EL_BIOMAZE,                 &level.biomaze[3],                      TEXT_GAME_OF_LIFE_4,0,8 },
10989   { EL_EMC_ANDROID,             &level.android_move_time,               TEXT_MOVE_SPEED         },
10990   { EL_EMC_ANDROID,             &level.android_clone_time,              TEXT_CLONE_SPEED        },
10991   { EL_EMC_MAGIC_BALL,          &level.ball_time,                       TEXT_BALL_DELAY         },
10992   { EL_EMC_LENSES,              &level.lenses_score,                    TEXT_COLLECTING         },
10993   { EL_EMC_MAGNIFIER,           &level.magnify_score,                   TEXT_COLLECTING         },
10994   { EL_SPRING,                  &level.slurp_score,                     TEXT_SLURPING           },
10995   { EL_SPRING_LEFT,             &level.slurp_score,                     TEXT_SLURPING           },
10996   { EL_SPRING_RIGHT,            &level.slurp_score,                     TEXT_SLURPING           },
10997   { EL_EMC_LENSES,              &level.lenses_time,                     TEXT_DURATION           },
10998   { EL_EMC_MAGNIFIER,           &level.magnify_time,                    TEXT_DURATION           },
10999   { EL_MM_FUSE_ACTIVE,          &level.mm_time_fuse,                    TEXT_DELAY_OFF          },
11000   { EL_MM_BOMB,                 &level.mm_time_bomb,                    TEXT_DELAY_EXPLODING    },
11001   { EL_MM_GRAY_BALL,            &level.mm_time_ball,                    TEXT_DELAY_CHANGING     },
11002   { EL_MM_STEEL_BLOCK,          &level.mm_time_block,                   TEXT_DELAY_MOVING       },
11003   { EL_MM_WOODEN_BLOCK,         &level.mm_time_block,                   TEXT_DELAY_MOVING       },
11004
11005   { -1,                         NULL,                                   NULL                    }
11006 };
11007
11008 static boolean checkPropertiesConfig(int element)
11009 {
11010   int i;
11011
11012   // special case: empty space customization only available in R'n'D game engine
11013   if (element == EL_EMPTY_SPACE && level.game_engine_type != GAME_ENGINE_TYPE_RND)
11014     return FALSE;
11015
11016   // special case: BD style rock customization only available in BD game engine
11017   if (element == EL_BD_ROCK && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11018     return FALSE;
11019
11020   if (IS_GEM(element) ||
11021       IS_CUSTOM_ELEMENT(element) ||
11022       IS_GROUP_ELEMENT(element) ||
11023       IS_EMPTY_ELEMENT(element) ||
11024       IS_BALLOON_ELEMENT(element) ||
11025       IS_ENVELOPE(element) ||
11026       IS_MM_ENVELOPE(element) ||
11027       IS_MM_MCDUFFIN(element) ||
11028       IS_DF_LASER(element) ||
11029       IS_PLAYER_ELEMENT(element) ||
11030       IS_BD_PLAYER_ELEMENT(element) ||
11031       IS_SOKOBAN_OBJECT_OR_FIELD(element) ||
11032       HAS_EDITOR_CONTENT(element) ||
11033       CAN_GROW(element) ||
11034       COULD_MOVE_INTO_ACID(element) ||
11035       MAYBE_DONT_COLLIDE_WITH(element) ||
11036       element == EL_BD_ROCK ||
11037       element == EL_BD_MEGA_ROCK ||
11038       element == EL_BD_SWEET ||
11039       element == EL_BD_VOODOO_DOLL)
11040   {
11041     return TRUE;
11042   }
11043   else
11044   {
11045     for (i = 0; elements_with_counter[i].element != -1; i++)
11046       if (elements_with_counter[i].element == element)
11047         return TRUE;
11048   }
11049
11050   return FALSE;
11051 }
11052
11053 static void SetAutomaticNumberOfGemsNeeded(void)
11054 {
11055   int x, y;
11056
11057   if (!level.auto_count_gems)
11058     return;
11059
11060   level.gems_needed = 0;
11061
11062   for (x = 0; x < lev_fieldx; x++)
11063   {
11064     for (y = 0; y < lev_fieldy; y++)
11065     {
11066       int element = Tile[x][y];
11067
11068       switch (element)
11069       {
11070         case EL_EMERALD:
11071         case EL_EMERALD_YELLOW:
11072         case EL_EMERALD_RED:
11073         case EL_EMERALD_PURPLE:
11074         case EL_BD_DIAMOND:
11075         case EL_WALL_EMERALD:
11076         case EL_WALL_EMERALD_YELLOW:
11077         case EL_WALL_EMERALD_RED:
11078         case EL_WALL_EMERALD_PURPLE:
11079         case EL_WALL_BD_DIAMOND:
11080         case EL_NUT:
11081         case EL_SP_INFOTRON:
11082         case EL_MM_KETTLE:
11083         case EL_DF_CELL:
11084           level.gems_needed++;
11085           break;
11086
11087         case EL_DIAMOND:
11088         case EL_WALL_DIAMOND:
11089           level.gems_needed += 3;
11090           break;
11091
11092         case EL_PEARL:
11093         case EL_WALL_PEARL:
11094           level.gems_needed += 5;
11095           break;
11096
11097         case EL_CRYSTAL:
11098         case EL_WALL_CRYSTAL:
11099           level.gems_needed += 8;
11100           break;
11101
11102         default:
11103           break;
11104       }
11105     }
11106   }
11107
11108   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
11109 }
11110
11111 static void DrawPropertiesConfig(void)
11112 {
11113   boolean draw_footer_line = FALSE;
11114   int max_num_element_counters = 4;
11115   int num_element_counters = 0;
11116   int i;
11117
11118   if (!checkPropertiesConfig(properties_element))
11119   {
11120     int xpos = ED_ELEMENT_SETTINGS_X(0);
11121     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
11122
11123     PrintInfoText("No configuration options available.", FONT_TEXT_1, xpos, ypos);
11124
11125     return;
11126   }
11127
11128   // check if there are elements where a value can be chosen for
11129   for (i = 0; elements_with_counter[i].element != -1; i++)
11130   {
11131     if (elements_with_counter[i].element != properties_element)
11132       continue;
11133
11134     // special case: score for extra diamonds only available in BD game engine
11135     if (elements_with_counter[i].element == EL_BD_DIAMOND &&
11136         elements_with_counter[i].value == &level.score[SC_DIAMOND_EXTRA] &&
11137         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11138       continue;
11139
11140     // special case: some amoeba counters only available in BD game engine
11141     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11142         elements_with_counter[i].value != &level.amoeba_speed &&
11143         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11144       continue;
11145
11146     // special case: some amoeba counters only available in R'n'D game engine
11147     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11148         elements_with_counter[i].value == &level.amoeba_speed &&
11149         level.game_engine_type == GAME_ENGINE_TYPE_BD)
11150       continue;
11151
11152     int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
11153
11154     counterbutton_info[counter_id].y =
11155       ED_ELEMENT_SETTINGS_YPOS((HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
11156                                (CAN_GROW(properties_element)                ? 1 : 0) +
11157                                (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
11158                                (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
11159                                (properties_element == EL_BD_VOODOO_DOLL     ? 4 : 0) +
11160                                (properties_element == EL_BD_SLIME           ? 1 : 0) +
11161                                (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
11162                                num_element_counters);
11163
11164     // special case: set amoeba counters for BD game engine separately
11165     if ((properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD) ||
11166         (properties_element == EL_BD_AMOEBA_2))
11167       counterbutton_info[counter_id].y = ED_ELEMENT_SETTINGS_YPOS(3 + num_element_counters);
11168
11169     counterbutton_info[counter_id].value      = elements_with_counter[i].value;
11170     counterbutton_info[counter_id].text_right = elements_with_counter[i].text;
11171     counterbutton_info[counter_id].min_value  = elements_with_counter[i].min_value;
11172     counterbutton_info[counter_id].max_value  = elements_with_counter[i].max_value;
11173
11174     // default: counter values between 0 and 999
11175     if (counterbutton_info[counter_id].max_value == 0)
11176       counterbutton_info[counter_id].max_value = 999;
11177
11178     MapCounterButtons(counter_id);
11179
11180     num_element_counters++;
11181     if (num_element_counters >= max_num_element_counters)
11182       break;
11183   }
11184
11185   if (HAS_EDITOR_CONTENT(properties_element))
11186   {
11187     // draw stickybutton gadget
11188     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11189
11190     if (properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11191     {
11192       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11193       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11194
11195       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG);
11196       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED);
11197     }
11198     else if (properties_element == EL_BD_AMOEBA_2)
11199     {
11200       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11201       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11202       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA);
11203
11204       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG);
11205       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED);
11206       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING);
11207       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE);
11208     }
11209     else if (IS_AMOEBOID(properties_element))
11210       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
11211     else if (properties_element == EL_YAMYAM ||
11212              properties_element == EL_YAMYAM_LEFT ||
11213              properties_element == EL_YAMYAM_RIGHT ||
11214              properties_element == EL_YAMYAM_UP ||
11215              properties_element == EL_YAMYAM_DOWN)
11216       DrawYamYamContentAreas();
11217     else if (properties_element == EL_EMC_MAGIC_BALL)
11218     {
11219       DrawMagicBallContentAreas();
11220
11221       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
11222       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
11223     }
11224     else if (properties_element == EL_EMC_ANDROID)
11225       DrawAndroidElementArea();
11226     else if (properties_element == EL_MM_GRAY_BALL)
11227     {
11228       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
11229       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
11230       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
11231       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
11232
11233       DrawMMBallContentArea();
11234     }
11235   }
11236
11237   if (IS_PLAYER_ELEMENT(properties_element))
11238   {
11239     int player_nr = GET_PLAYER_NR(properties_element);
11240
11241     // these properties can be set for every player individually
11242
11243     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11244     {
11245       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
11246         &level.start_element[player_nr];
11247       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
11248         &level.artwork_element[player_nr];
11249       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
11250         &level.explosion_element[player_nr];
11251
11252       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
11253         &level.use_start_element[player_nr];
11254       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
11255         &level.use_artwork_element[player_nr];
11256       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
11257         &level.use_explosion_element[player_nr];
11258       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
11259         &level.initial_player_gravity[player_nr];
11260
11261       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
11262         &level.initial_player_stepsize[player_nr];
11263
11264       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
11265       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
11266                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
11267                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
11268       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
11269       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
11270       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
11271       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
11272       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
11273       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
11274       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
11275       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
11276       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
11277       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
11278       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
11279
11280       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
11281       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
11282       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
11283
11284       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
11285     }
11286     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11287     {
11288       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
11289         &level.initial_inventory_content[player_nr][0];
11290
11291       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
11292         &level.initial_inventory_size[player_nr];
11293
11294       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
11295         &level.use_initial_inventory[player_nr];
11296
11297       // draw checkbutton gadgets
11298       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
11299       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
11300       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
11301
11302       // draw counter gadgets
11303       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
11304
11305       // draw drawing area gadgets
11306       DrawPlayerInitialInventoryArea(properties_element);
11307     }
11308   }
11309
11310   if (IS_BD_PLAYER_ELEMENT(properties_element))
11311   {
11312     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11313       ED_ELEMENT_SETTINGS_YPOS(2);
11314     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11315       ED_ELEMENT_SETTINGS_YPOS(3);
11316     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11317       ED_ELEMENT_SETTINGS_YPOS(4);
11318
11319     // draw checkbutton gadgets
11320     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS);
11321     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE);
11322     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11323
11324     // draw counter gadgets
11325     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11326     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11327
11328     // draw drawing area gadgets
11329     MapDrawingArea(ED_DRAWING_ID_BD_SNAP_ELEMENT);
11330   }
11331
11332   if (properties_element == EL_BD_ROCK && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11333   {
11334     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11335       ED_ELEMENT_SETTINGS_YPOS(0);
11336     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11337       ED_ELEMENT_SETTINGS_YPOS(1);
11338
11339     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11340     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11341   }
11342
11343   if (properties_element == EL_BD_MEGA_ROCK ||
11344       properties_element == EL_BD_SWEET)
11345   {
11346     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11347       ED_ELEMENT_SETTINGS_YPOS(0);
11348     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11349       ED_ELEMENT_SETTINGS_YPOS(1);
11350
11351     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11352     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11353   }
11354
11355   if (properties_element == EL_BD_VOODOO_DOLL)
11356   {
11357     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS);
11358     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER);
11359     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK);
11360     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION);
11361   }
11362
11363   if (properties_element == EL_BD_SLIME)
11364   {
11365     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_SLIME_IS_PREDICTABLE);
11366   }
11367
11368   if (properties_element == EL_BD_MAGIC_WALL)
11369   {
11370     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING);
11371     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA);
11372   }
11373
11374   // special case: slippery walls option for gems only available in R'n'D game engine
11375   if (IS_GEM(properties_element) && level.game_engine_type == GAME_ENGINE_TYPE_RND)
11376     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
11377
11378   if (properties_element == EL_EM_DYNAMITE)
11379     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
11380
11381   if (COULD_MOVE_INTO_ACID(properties_element) &&
11382       !IS_PLAYER_ELEMENT(properties_element) &&
11383       (!IS_CUSTOM_ELEMENT(properties_element) ||
11384        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
11385   {
11386     // set position for checkbutton for "can move into acid"
11387     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
11388       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
11389     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
11390       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
11391                                IS_BALLOON_ELEMENT(properties_element) ||
11392                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11393
11394     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
11395   }
11396
11397   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
11398     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
11399
11400   if (properties_element == EL_SPRING ||
11401       properties_element == EL_SPRING_LEFT ||
11402       properties_element == EL_SPRING_RIGHT)
11403     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
11404
11405   if (properties_element == EL_TIME_ORB_FULL)
11406     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
11407
11408   if (properties_element == EL_GAME_OF_LIFE ||
11409       properties_element == EL_BIOMAZE)
11410     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
11411
11412   if (CAN_GROW(properties_element) && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11413   {
11414     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
11415       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11416
11417     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
11418   }
11419
11420   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
11421     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
11422
11423   if (properties_element == EL_SOKOBAN_OBJECT)
11424     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
11425
11426   if (properties_element == EL_SOKOBAN_OBJECT ||
11427       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
11428       properties_element == EL_SOKOBAN_FIELD_FULL)
11429   {
11430     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
11431       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
11432                                0 : 1);
11433
11434     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
11435   }
11436
11437   if (IS_BALLOON_ELEMENT(properties_element))
11438     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
11439
11440   if (IS_ENVELOPE(properties_element) ||
11441       IS_MM_ENVELOPE(properties_element))
11442   {
11443     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
11444     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
11445     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
11446     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
11447     int envelope_nr = ENVELOPE_NR(properties_element);
11448
11449     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
11450     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
11451
11452     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
11453     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
11454
11455     // display counter to choose size of envelope text area
11456     MapCounterButtons(counter1_id);
11457     MapCounterButtons(counter2_id);
11458
11459     // display checkbuttons to choose auto-wrap and alignment properties
11460     MapCheckbuttonGadget(button1_id);
11461     MapCheckbuttonGadget(button2_id);
11462
11463     DrawEnvelopeTextArea(envelope_nr);
11464   }
11465
11466   if (IS_MM_MCDUFFIN(properties_element))
11467   {
11468     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
11469     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
11470     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
11471   }
11472
11473   if (IS_DF_LASER(properties_element))
11474   {
11475     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
11476     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
11477     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
11478   }
11479
11480   if (IS_CUSTOM_ELEMENT(properties_element))
11481   {
11482     // draw stickybutton gadget
11483     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11484
11485     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11486     {
11487       // draw checkbutton gadgets
11488       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
11489            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
11490         MapCheckbuttonGadget(i);
11491
11492       // draw counter gadgets
11493       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
11494            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
11495         MapCounterButtons(i);
11496
11497       // draw selectbox gadgets
11498       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
11499            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
11500         MapSelectboxGadget(i);
11501
11502       // draw textbutton gadgets
11503       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11504
11505       // draw text input gadgets
11506       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11507
11508       // draw drawing area gadgets
11509       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11510
11511       draw_footer_line = TRUE;
11512     }
11513     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11514     {
11515       // draw checkbutton gadgets
11516       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
11517            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
11518         MapCheckbuttonGadget(i);
11519
11520       // draw counter gadgets
11521       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
11522            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
11523         MapCounterButtons(i);
11524
11525       // draw selectbox gadgets
11526       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
11527            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
11528         MapSelectboxGadget(i);
11529
11530       // draw drawing area gadgets
11531       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
11532       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
11533       DrawCustomContentArea();
11534     }
11535   }
11536   else if (IS_GROUP_ELEMENT(properties_element))
11537   {
11538     // draw stickybutton gadget
11539     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11540
11541     // draw checkbutton gadgets
11542     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11543     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11544
11545     // draw counter gadgets
11546     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
11547
11548     // draw selectbox gadgets
11549     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
11550
11551     // draw textbutton gadgets
11552     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11553
11554     // draw drawing area gadgets
11555     DrawGroupElementArea();
11556
11557     // draw text input gadgets
11558     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11559
11560     // draw drawing area gadgets
11561     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11562
11563     draw_footer_line = TRUE;
11564   }
11565   else if (IS_EMPTY_ELEMENT(properties_element))
11566   {
11567     // draw stickybutton gadget
11568     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11569
11570     // draw checkbutton gadgets
11571     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11572     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11573
11574     // draw textbutton gadgets
11575     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11576
11577     // draw drawing area gadgets
11578     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11579
11580     draw_footer_line = TRUE;
11581   }
11582
11583   // draw little footer border line above CE/GE use/save template gadgets
11584   if (draw_footer_line)
11585   {
11586     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
11587     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
11588     int gd_x = gd->x + gd_gi1->border.width / 2;
11589     int gd_y = gd->y + gd_gi1->height - 1;
11590     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
11591
11592     if (tab_color != BLACK_PIXEL)               // black => transparent
11593       FillRectangle(drawto,
11594                     SX + ED_ELEMENT_SETTINGS_X(0),
11595                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
11596                     ED_TAB_BAR_HEIGHT,
11597                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
11598   }
11599 }
11600
11601 static void DrawPropertiesChangeDrawingAreas(void)
11602 {
11603   if (IS_CUSTOM_ELEMENT(properties_element))
11604   {
11605     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
11606     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
11607     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
11608
11609     DrawCustomChangeContentArea();
11610   }
11611
11612   redraw_mask |= REDRAW_FIELD;
11613 }
11614
11615 static void DrawPropertiesChange(void)
11616 {
11617   int i;
11618
11619   // needed to initially set selectbox options for special action options
11620   setSelectboxSpecialActionOptions();
11621
11622   // draw stickybutton gadget
11623   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11624
11625   // draw checkbutton gadgets
11626   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
11627        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
11628     MapCheckbuttonGadget(i);
11629
11630   // draw counter gadgets
11631   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
11632        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
11633     MapCounterButtons(i);
11634
11635   // draw selectbox gadgets
11636   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
11637        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
11638     MapSelectboxGadget(i);
11639
11640   // draw textbutton gadgets
11641   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
11642        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
11643     MapTextbuttonGadget(i);
11644
11645   // draw graphicbutton gadgets
11646   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
11647        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
11648     MapGraphicbuttonGadget(i);
11649
11650   // draw drawing area gadgets
11651   DrawPropertiesChangeDrawingAreas();
11652 }
11653
11654 static void DrawEditorElementAnimation(int x, int y)
11655 {
11656   int graphic = el2img(properties_element);
11657   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
11658                custom_element.ce_value_fixed_initial :
11659                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
11660                custom_element.collect_score_initial : FrameCounter);
11661
11662   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
11663 }
11664
11665 static void DrawEditorElementName(int x, int y, int font_nr)
11666 {
11667   char *element_name = getElementInfoText(properties_element);
11668   int font_width = getFontWidth(font_nr);
11669   int font_height = getFontHeight(font_nr);
11670   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
11671   int max_chars_per_line = max_text_width / font_width;
11672
11673   if (strlen(element_name) <= max_chars_per_line)
11674     DrawTextS(x, y, font_nr, element_name);
11675   else
11676   {
11677     char buffer[max_chars_per_line + 1];
11678     int next_pos = max_chars_per_line;
11679
11680     strncpy(buffer, element_name, max_chars_per_line);
11681     buffer[max_chars_per_line] = '\0';
11682
11683     if (element_name[max_chars_per_line] == ' ')
11684       next_pos++;
11685     else
11686     {
11687       int i;
11688
11689       for (i = max_chars_per_line - 1; i >= 0; i--)
11690         if (buffer[i] == ' ')
11691           break;
11692
11693       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
11694       {
11695         buffer[i] = '\0';
11696         next_pos = i + 1;
11697       }
11698     }
11699
11700     DrawTextS(x, y - font_height / 2, font_nr, buffer);
11701
11702     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
11703     buffer[max_chars_per_line] = '\0';
11704
11705     DrawTextS(x, y + font_height / 2, font_nr, buffer);
11706   }
11707 }
11708
11709 static void DrawPropertiesWindow(void)
11710 {
11711   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
11712   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
11713   int border_size = gd->border_size;
11714   int font_nr = FONT_TEXT_1;
11715   int font_height = getFontHeight(font_nr);
11716   int xoffset = TILEX + element_border + 3 * border_size;
11717   int yoffset = (TILEY - font_height) / 2;
11718   int x1 = editor.settings.element_graphic.x + element_border;
11719   int y1 = editor.settings.element_graphic.y + element_border;
11720   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
11721             editor.settings.element_name.x);
11722   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
11723             editor.settings.element_name.y);
11724   char *text = "Element Settings";
11725   int font2_nr = FONT_TITLE_1;
11726   struct MenuPosInfo *pos = &editor.settings.headline;
11727   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
11728   int sy = SY + pos->y;
11729
11730   stick_element_properties_window = FALSE;
11731
11732   // make sure that previous properties edit mode exists for this element
11733   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
11734       !IS_CUSTOM_ELEMENT(properties_element))
11735     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
11736
11737   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
11738       !IS_PLAYER_ELEMENT(properties_element) &&
11739       !IS_CUSTOM_ELEMENT(properties_element))
11740     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
11741
11742   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
11743       (IS_PLAYER_ELEMENT(properties_element) ||
11744        IS_CUSTOM_ELEMENT(properties_element)))
11745     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
11746
11747   CopyElementPropertiesToEditor(properties_element);
11748
11749   UnmapLevelEditorFieldGadgets();
11750   UnmapLevelEditorToolboxDrawingGadgets();
11751   UnmapLevelEditorToolboxCustomGadgets();
11752
11753   MapLevelEditorToolboxCustomGadgetsIfNeeded();
11754
11755   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11756   ClearField();
11757
11758   DrawText(sx, sy, text, font2_nr);
11759
11760   FrameCounter = 0;     // restart animation frame counter
11761
11762   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
11763   DrawEditorElementAnimation(SX + x1, SY + y1);
11764   DrawEditorElementName(x2, y2, font_nr);
11765
11766   DrawPropertiesTabulatorGadgets();
11767
11768   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
11769     DrawPropertiesInfo();
11770   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
11771     DrawPropertiesChange();
11772   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
11773     DrawPropertiesConfig();
11774 }
11775
11776 static void DrawPaletteWindow(void)
11777 {
11778   int i;
11779
11780   UnmapLevelEditorFieldGadgets();
11781
11782   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11783   ClearField();
11784
11785   // map buttons to select elements
11786   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
11787     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
11788   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
11789   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
11790   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
11791 }
11792
11793 static void UpdateCustomElementGraphicGadgets(void)
11794 {
11795   int i;
11796
11797   InitElementPropertiesGfxElement();
11798
11799   ModifyEditorElementList();
11800   RedrawDrawingElements();
11801
11802   // force redraw of all mapped drawing area gadgets
11803   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
11804   {
11805     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
11806
11807     if (gi->mapped)
11808       MapDrawingArea(i);
11809   }
11810 }
11811
11812 static int getOpenDirectionFromTube(int element)
11813 {
11814   switch (element)
11815   {
11816     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
11817     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
11818     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
11819     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
11820     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
11821     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
11822     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
11823     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
11824     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
11825     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
11826     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
11827   }
11828
11829   return MV_NONE;
11830 }
11831
11832 static int getTubeFromOpenDirection(int direction)
11833 {
11834   switch (direction)
11835   {
11836     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
11837     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
11838     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
11839     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
11840     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
11841     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
11842     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
11843     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
11844     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
11845     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
11846     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
11847
11848     // if only one direction, fall back to simple tube with that direction
11849     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
11850     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
11851     case (MV_UP):                       return EL_TUBE_VERTICAL;
11852     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
11853   }
11854
11855   return EL_EMPTY;
11856 }
11857
11858 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
11859 {
11860   int element_new = getTubeFromOpenDirection(direction);
11861
11862   return (element_new != EL_EMPTY ? element_new : element_old);
11863 }
11864
11865 static int getOpenDirectionFromBelt(int element)
11866 {
11867   int belt_dir = getBeltDirFromBeltElement(element);
11868
11869   return (belt_dir == MV_LEFT ? MV_RIGHT :
11870           belt_dir == MV_RIGHT ? MV_LEFT :
11871           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
11872 }
11873
11874 static int getBeltFromNrAndOpenDirection(int nr, int direction)
11875 {
11876   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
11877                   direction == MV_RIGHT ? MV_LEFT :
11878                   direction == MV_HORIZONTAL ? MV_NONE : direction);
11879
11880   if (direction == MV_NONE)
11881     return EL_EMPTY;
11882
11883   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
11884 }
11885
11886 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
11887                                                  int element_old)
11888 {
11889   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
11890
11891   return (element_new != EL_EMPTY ? element_new : element_old);
11892 }
11893
11894 static int getOpenDirectionFromPool(int element)
11895 {
11896   switch (element)
11897   {
11898     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
11899     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
11900     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
11901     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
11902     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
11903     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
11904   }
11905
11906   return MV_NONE;
11907 }
11908
11909 static int getPoolFromOpenDirection(int direction)
11910 {
11911   switch (direction)
11912   {
11913     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
11914     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
11915     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
11916     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
11917     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
11918     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
11919   }
11920
11921   return EL_EMPTY;
11922 }
11923
11924 static int getPoolFromOpenDirectionExt(int direction, int help_element)
11925 {
11926   int element = getPoolFromOpenDirection(direction);
11927   int help_direction = getOpenDirectionFromPool(help_element);
11928
11929   if (element == EL_EMPTY)
11930   {
11931     int help_direction_vertical = help_direction & MV_VERTICAL;
11932
11933     element = getPoolFromOpenDirection(direction | help_direction_vertical);
11934   }
11935
11936   if (element == EL_EMPTY)
11937   {
11938     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
11939
11940     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
11941   }
11942
11943   return element;
11944 }
11945
11946 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
11947 {
11948   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
11949
11950   return (element_new != EL_EMPTY ? element_new : element_old);
11951 }
11952
11953 static int getOpenDirectionFromPillar(int element)
11954 {
11955   switch (element)
11956   {
11957     case EL_EMC_WALL_1:                 return (MV_DOWN);
11958     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
11959     case EL_EMC_WALL_3:                 return (MV_UP);
11960   }
11961
11962   return MV_NONE;
11963 }
11964
11965 static int getPillarFromOpenDirection(int direction)
11966 {
11967   switch (direction)
11968   {
11969     case (MV_DOWN):                     return EL_EMC_WALL_1;
11970     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
11971     case (MV_UP):                       return EL_EMC_WALL_3;
11972   }
11973
11974   return EL_EMPTY;
11975 }
11976
11977 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
11978 {
11979   int element_new = getPillarFromOpenDirection(direction);
11980
11981   return (element_new != EL_EMPTY ? element_new : element_old);
11982 }
11983
11984 static int getOpenDirectionFromSteel2(int element)
11985 {
11986   switch (element)
11987   {
11988     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
11989     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
11990     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
11991     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
11992     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
11993     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
11994     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
11995     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
11996   }
11997
11998   return MV_NONE;
11999 }
12000
12001 static int getSteel2FromOpenDirection(int direction)
12002 {
12003   switch (direction)
12004   {
12005     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
12006     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
12007     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
12008     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
12009     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
12010     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
12011     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
12012     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
12013   }
12014
12015   return EL_EMPTY;
12016 }
12017
12018 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
12019 {
12020   int element_new = getSteel2FromOpenDirection(direction);
12021
12022   return (element_new != EL_EMPTY ? element_new : element_old);
12023 }
12024
12025 static int getOpenDirectionFromChip(int element)
12026 {
12027   switch (element)
12028   {
12029     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
12030     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
12031     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
12032     case EL_SP_CHIP_TOP:                return (MV_DOWN);
12033     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
12034   }
12035
12036   return MV_NONE;
12037 }
12038
12039 static int getChipFromOpenDirection(int direction)
12040 {
12041   switch (direction)
12042   {
12043     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
12044     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
12045     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
12046     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
12047     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
12048   }
12049
12050   return EL_EMPTY;
12051 }
12052
12053 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
12054 {
12055   int element_new = getChipFromOpenDirection(direction);
12056
12057   return (element_new != EL_EMPTY ? element_new : element_old);
12058 }
12059
12060 static int getClosedTube(int x, int y)
12061 {
12062   struct XY *xy = xy_directions;
12063   int element_old = IntelliDrawBuffer[x][y];
12064   int direction_old = getOpenDirectionFromTube(element_old);
12065   int direction_new = MV_NONE;
12066   int i;
12067
12068   for (i = 0; i < NUM_DIRECTIONS; i++)
12069   {
12070     int xx = x + xy[i].x;
12071     int yy = y + xy[i].y;
12072     int dir = MV_DIR_FROM_BIT(i);
12073     int dir_opposite = MV_DIR_OPPOSITE(dir);
12074
12075     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
12076         (direction_old & dir) &&
12077         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12078       direction_new |= dir;
12079   }
12080
12081   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
12082 }
12083
12084 static int getClosedBelt(int x, int y)
12085 {
12086   struct XY *xy = xy_directions;
12087   int element_old = IntelliDrawBuffer[x][y];
12088   int nr = getBeltNrFromBeltElement(element_old);
12089   int direction_old = getOpenDirectionFromBelt(element_old);
12090   int direction_new = MV_NONE;
12091   int i;
12092
12093   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12094   {
12095     int xx = x + xy[i].x;
12096     int yy = y + xy[i].y;
12097     int dir = MV_DIR_FROM_BIT(i);
12098     int dir_opposite = MV_DIR_OPPOSITE(dir);
12099
12100     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
12101         (direction_old & dir) &&
12102         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12103       direction_new |= dir;
12104   }
12105
12106   return getBeltFromNrAndOpenDirection(nr, direction_new);
12107 }
12108
12109 static int getClosedPool(int x, int y)
12110 {
12111   struct XY *xy = xy_directions;
12112   int element_old = IntelliDrawBuffer[x][y];
12113   int direction_old = getOpenDirectionFromPool(element_old);
12114   int direction_new = MV_NONE;
12115   int i;
12116
12117   for (i = 0; i < NUM_DIRECTIONS; i++)
12118   {
12119     int xx = x + xy[i].x;
12120     int yy = y + xy[i].y;
12121     int dir = MV_DIR_FROM_BIT(i);
12122     int dir_opposite = MV_DIR_OPPOSITE(dir);
12123
12124     if (IN_LEV_FIELD(xx, yy) &&
12125         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
12126         (direction_old & dir) &&
12127         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12128       direction_new |= dir;
12129   }
12130
12131   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
12132 }
12133
12134 static int getClosedPillar(int x, int y)
12135 {
12136   struct XY *xy = xy_directions;
12137   int element_old = IntelliDrawBuffer[x][y];
12138   int direction_old = getOpenDirectionFromPillar(element_old);
12139   int direction_new = MV_NONE;
12140   int i;
12141
12142   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12143   {
12144     int xx = x + xy[i].x;
12145     int yy = y + xy[i].y;
12146     int dir = MV_DIR_FROM_BIT(i);
12147     int dir_opposite = MV_DIR_OPPOSITE(dir);
12148
12149     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
12150         (direction_old & dir) &&
12151         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12152       direction_new |= dir;
12153   }
12154
12155   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
12156 }
12157
12158 static int getClosedSteel2(int x, int y)
12159 {
12160   struct XY *xy = xy_directions;
12161   int element_old = IntelliDrawBuffer[x][y];
12162   int direction_old = getOpenDirectionFromSteel2(element_old);
12163   int direction_new = MV_NONE;
12164   int i;
12165
12166   for (i = 0; i < NUM_DIRECTIONS; i++)
12167   {
12168     int xx = x + xy[i].x;
12169     int yy = y + xy[i].y;
12170     int dir = MV_DIR_FROM_BIT(i);
12171     int dir_opposite = MV_DIR_OPPOSITE(dir);
12172
12173     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
12174         (direction_old & dir) &&
12175         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12176       direction_new |= dir;
12177   }
12178
12179   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
12180 }
12181
12182 static int getClosedChip(int x, int y)
12183 {
12184   struct XY *xy = xy_directions;
12185   int element_old = IntelliDrawBuffer[x][y];
12186   int direction_old = getOpenDirectionFromChip(element_old);
12187   int direction_new = MV_NONE;
12188   int i;
12189
12190   for (i = 0; i < NUM_DIRECTIONS; i++)
12191   {
12192     int xx = x + xy[i].x;
12193     int yy = y + xy[i].y;
12194     int dir = MV_DIR_FROM_BIT(i);
12195     int dir_opposite = MV_DIR_OPPOSITE(dir);
12196
12197     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
12198         (direction_old & dir) &&
12199         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12200       direction_new |= dir;
12201   }
12202
12203   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
12204 }
12205
12206 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
12207                                 boolean change_level)
12208 {
12209   int sx = x - level_xpos;
12210   int sy = y - level_ypos;
12211   int old_element = Tile[x][y];
12212   int new_element = element;
12213   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
12214   boolean draw_masked = FALSE;
12215
12216   if (IS_MM_WALL_EDITOR(element))
12217   {
12218     element = map_mm_wall_element_editor(element) | new_bitmask;
12219
12220     if (IS_MM_WALL(old_element))
12221       element |= MM_WALL_BITS(old_element);
12222
12223     if (!change_level)
12224       draw_masked = TRUE;
12225   }
12226   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
12227   {
12228     int element_changed = old_element & ~new_bitmask;
12229
12230     if (MM_WALL_BITS(element_changed) != 0)
12231       element = element_changed;
12232   }
12233
12234   IntelliDrawBuffer[x][y] = element;
12235
12236   if (change_level)
12237     Tile[x][y] = element;
12238
12239   if (IN_ED_FIELD(sx, sy))
12240   {
12241     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
12242       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
12243     else if (draw_masked)
12244       DrawEditorElementThruMask(sx, sy, element);
12245     else
12246       DrawEditorElement(sx, sy, element);
12247   }
12248 }
12249
12250 static void SetElementSimple(int x, int y, int element, boolean change_level)
12251 {
12252   SetElementSimpleExt(x, y, 0, 0, element, change_level);
12253 }
12254
12255 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
12256                                            int x2, int y2, int *element2,
12257                                            int (*close_function)(int, int),
12258                                            boolean change_level)
12259 {
12260   // set neighbour elements to newly determined connections
12261   SetElementSimple(x1, y1, *element1, change_level);
12262   SetElementSimple(x2, y2, *element2, change_level);
12263
12264   // remove all open connections of neighbour elements
12265   *element1 = close_function(x1, y1);
12266   *element2 = close_function(x2, y2);
12267
12268   // set neighbour elements to new, minimized connections
12269   SetElementSimple(x1, y1, *element1, change_level);
12270   SetElementSimple(x2, y2, *element2, change_level);
12271 }
12272
12273 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
12274                                   boolean change_level, int button)
12275 {
12276   struct XY *xy = xy_directions;
12277   static int last_x = -1;
12278   static int last_y = -1;
12279
12280   if (new_element == EL_UNDEFINED)
12281   {
12282     last_x = -1;
12283     last_y = -1;
12284
12285     return;
12286   }
12287
12288   int old_element = IntelliDrawBuffer[x][y];
12289
12290   if (IS_TUBE(new_element))
12291   {
12292     int last_element_new = EL_UNDEFINED;
12293     int direction = MV_NONE;
12294     int i;
12295
12296     // if old element is of same kind, keep all existing directions
12297     if (IS_TUBE(old_element))
12298       direction |= getOpenDirectionFromTube(old_element);
12299
12300     for (i = 0; i < NUM_DIRECTIONS; i++)
12301     {
12302       int xx = x + xy[i].x;
12303       int yy = y + xy[i].y;
12304
12305       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12306           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
12307       {
12308         int dir = MV_DIR_FROM_BIT(i);
12309         int dir_opposite = MV_DIR_OPPOSITE(dir);
12310         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12311         int last_direction_old = getOpenDirectionFromTube(last_element_old);
12312         int last_direction_new = last_direction_old | dir_opposite;
12313
12314         last_element_new = getTubeFromOpenDirection(last_direction_new);
12315
12316         direction |= dir;
12317       }
12318     }
12319
12320     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
12321
12322     if (last_element_new != EL_UNDEFINED)
12323       MergeAndCloseNeighbourElements(x, y, &new_element,
12324                                      last_x, last_y, &last_element_new,
12325                                      getClosedTube, change_level);
12326   }
12327   else if (IS_BELT(new_element))
12328   {
12329     int belt_nr = getBeltNrFromBeltElement(new_element);
12330     int last_element_new = EL_UNDEFINED;
12331     int direction = MV_NONE;
12332     int i;
12333
12334     // if old element is of same kind, keep all existing directions
12335     if (IS_BELT(old_element))
12336       direction |= getOpenDirectionFromBelt(old_element);
12337
12338     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12339     {
12340       int xx = x + xy[i].x;
12341       int yy = y + xy[i].y;
12342
12343       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12344           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
12345       {
12346         int dir = MV_DIR_FROM_BIT(i);
12347         int dir_opposite = MV_DIR_OPPOSITE(dir);
12348         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12349         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
12350         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
12351         int last_direction_new = last_direction_old | dir_opposite;
12352
12353         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
12354                                                          last_direction_new);
12355         direction |= dir;
12356       }
12357     }
12358
12359     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
12360                                                         new_element);
12361     if (last_element_new != EL_UNDEFINED)
12362       MergeAndCloseNeighbourElements(x, y, &new_element,
12363                                      last_x, last_y, &last_element_new,
12364                                      getClosedBelt, change_level);
12365   }
12366   else if (IS_ACID_POOL_OR_ACID(new_element))
12367   {
12368     int last_element_new = EL_UNDEFINED;
12369     int direction = MV_NONE;
12370     int i;
12371
12372     // if old element is of same kind, keep all existing directions
12373     if (IS_ACID_POOL_OR_ACID(old_element))
12374       direction |= getOpenDirectionFromPool(old_element);
12375
12376     for (i = 0; i < NUM_DIRECTIONS; i++)
12377     {
12378       int xx = x + xy[i].x;
12379       int yy = y + xy[i].y;
12380
12381       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12382           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
12383       {
12384         int dir = MV_DIR_FROM_BIT(i);
12385         int dir_opposite = MV_DIR_OPPOSITE(dir);
12386         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12387         int last_direction_old = getOpenDirectionFromPool(last_element_old);
12388         int last_direction_new = last_direction_old | dir_opposite;
12389
12390         last_element_new = getPoolFromOpenDirection(last_direction_new);
12391
12392         direction |= dir;
12393       }
12394     }
12395
12396     // special corrections needed for intuitively correct acid pool drawing
12397     if (last_element_new == EL_EMPTY)
12398       last_element_new = new_element;
12399     else if (last_element_new != EL_UNDEFINED)
12400       new_element = last_element_new;
12401
12402     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
12403
12404     if (last_element_new != EL_UNDEFINED)
12405       MergeAndCloseNeighbourElements(x, y, &new_element,
12406                                      last_x, last_y, &last_element_new,
12407                                      getClosedPool, change_level);
12408   }
12409   else if (IS_EMC_PILLAR(new_element))
12410   {
12411     int last_element_new = EL_UNDEFINED;
12412     int direction = MV_NONE;
12413     int i;
12414
12415     // if old element is of same kind, keep all existing directions
12416     if (IS_EMC_PILLAR(old_element))
12417       direction |= getOpenDirectionFromPillar(old_element);
12418
12419     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12420     {
12421       int xx = x + xy[i].x;
12422       int yy = y + xy[i].y;
12423
12424       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12425           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
12426       {
12427         int dir = MV_DIR_FROM_BIT(i);
12428         int dir_opposite = MV_DIR_OPPOSITE(dir);
12429         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12430         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
12431         int last_direction_new = last_direction_old | dir_opposite;
12432
12433         last_element_new = getPillarFromOpenDirection(last_direction_new);
12434
12435         direction |= dir;
12436       }
12437     }
12438
12439     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
12440
12441     if (last_element_new != EL_UNDEFINED)
12442       MergeAndCloseNeighbourElements(x, y, &new_element,
12443                                      last_x, last_y, &last_element_new,
12444                                      getClosedPillar, change_level);
12445   }
12446   else if (IS_DC_STEELWALL_2(new_element))
12447   {
12448     int last_element_new = EL_UNDEFINED;
12449     int direction = MV_NONE;
12450     int i;
12451
12452     // if old element is of same kind, keep all existing directions
12453     if (IS_DC_STEELWALL_2(old_element))
12454       direction |= getOpenDirectionFromSteel2(old_element);
12455
12456     for (i = 0; i < NUM_DIRECTIONS; i++)
12457     {
12458       int xx = x + xy[i].x;
12459       int yy = y + xy[i].y;
12460
12461       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12462           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
12463       {
12464         int dir = MV_DIR_FROM_BIT(i);
12465         int dir_opposite = MV_DIR_OPPOSITE(dir);
12466         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12467         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
12468         int last_direction_new = last_direction_old | dir_opposite;
12469
12470         last_element_new = getSteel2FromOpenDirection(last_direction_new);
12471
12472         direction |= dir;
12473       }
12474     }
12475
12476     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
12477
12478     if (last_element_new != EL_UNDEFINED)
12479       MergeAndCloseNeighbourElements(x, y, &new_element,
12480                                      last_x, last_y, &last_element_new,
12481                                      getClosedSteel2, change_level);
12482   }
12483   else if (IS_SP_CHIP(new_element))
12484   {
12485     int last_element_new = EL_UNDEFINED;
12486     int direction = MV_NONE;
12487     int i;
12488
12489     // (do not keep existing directions, regardless of kind of old element)
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_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
12498       {
12499         int dir = MV_DIR_FROM_BIT(i);
12500         int dir_opposite = MV_DIR_OPPOSITE(dir);
12501         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12502         int last_direction_old = getOpenDirectionFromChip(last_element_old);
12503         int last_direction_new = last_direction_old | dir_opposite;
12504
12505         if (last_direction_old == MV_NONE)
12506         {
12507           last_element_new = getChipFromOpenDirection(last_direction_new);
12508           direction |= dir;
12509         }
12510         else if (last_direction_old & (dir | dir_opposite))
12511         {
12512           direction |= MV_DIR_OPPOSITE(last_direction_old);
12513         }
12514         else
12515         {
12516           direction |= MV_DIR_OPPOSITE(dir);
12517         }
12518       }
12519     }
12520
12521     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
12522
12523     if (last_element_new != EL_UNDEFINED)
12524       MergeAndCloseNeighbourElements(x, y, &new_element,
12525                                      last_x, last_y, &last_element_new,
12526                                      getClosedChip, change_level);
12527   }
12528   else if (IS_SP_HARDWARE_BASE(new_element))
12529   {
12530     int nr = GetSimpleRandom(6);
12531
12532     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
12533                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
12534                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
12535                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
12536                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
12537   }
12538   else if (new_element == EL_SP_HARDWARE_GREEN ||
12539            new_element == EL_SP_HARDWARE_BLUE ||
12540            new_element == EL_SP_HARDWARE_RED)
12541   {
12542     int nr = GetSimpleRandom(3);
12543
12544     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
12545                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
12546   }
12547   else if (IS_GROUP_ELEMENT(new_element))
12548   {
12549     boolean connected_drawing = FALSE;
12550     int i;
12551
12552     for (i = 0; i < NUM_DIRECTIONS; i++)
12553     {
12554       int xx = x + xy[i].x;
12555       int yy = y + xy[i].y;
12556
12557       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12558           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
12559         connected_drawing = TRUE;
12560     }
12561
12562     if (!connected_drawing)
12563       ResolveGroupElement(new_element);
12564
12565     new_element = GetElementFromGroupElement(new_element);
12566   }
12567   else if (IS_BELT_SWITCH(old_element))
12568   {
12569     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
12570     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
12571
12572     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
12573                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
12574
12575     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
12576   }
12577   else
12578   {
12579     static int swappable_elements[][2] =
12580     {
12581       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
12582       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
12583       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
12584       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
12585       { EL_EMERALD,                     EL_WALL_EMERALD                 },
12586       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
12587       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
12588       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
12589       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
12590       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
12591       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
12592       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
12593       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
12594       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
12595       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
12596       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
12597       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
12598       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
12599       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
12600       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
12601       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
12602       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
12603       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
12604       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
12605       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
12606       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
12607       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
12608       { EL_PEARL,                       EL_WALL_PEARL                   },
12609       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
12610       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
12611       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
12612       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
12613       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
12614       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
12615       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
12616       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
12617       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
12618       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
12619       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
12620       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
12621       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
12622       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
12623       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
12624       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
12625
12626       { -1,                             -1                              },
12627     };
12628     static int rotatable_elements_4[][4] =
12629     {
12630       {
12631         EL_BUG_UP,
12632         EL_BUG_RIGHT,
12633         EL_BUG_DOWN,
12634         EL_BUG_LEFT
12635       },
12636       {
12637         EL_SPACESHIP_UP,
12638         EL_SPACESHIP_RIGHT,
12639         EL_SPACESHIP_DOWN,
12640         EL_SPACESHIP_LEFT
12641       },
12642       {
12643         EL_BD_BUTTERFLY_UP,
12644         EL_BD_BUTTERFLY_RIGHT,
12645         EL_BD_BUTTERFLY_DOWN,
12646         EL_BD_BUTTERFLY_LEFT
12647       },
12648       {
12649         EL_BD_FIREFLY_UP,
12650         EL_BD_FIREFLY_RIGHT,
12651         EL_BD_FIREFLY_DOWN,
12652         EL_BD_FIREFLY_LEFT
12653       },
12654       {
12655         EL_PACMAN_UP,
12656         EL_PACMAN_RIGHT,
12657         EL_PACMAN_DOWN,
12658         EL_PACMAN_LEFT
12659       },
12660       {
12661         EL_YAMYAM_UP,
12662         EL_YAMYAM_RIGHT,
12663         EL_YAMYAM_DOWN,
12664         EL_YAMYAM_LEFT
12665       },
12666       {
12667         EL_ARROW_UP,
12668         EL_ARROW_RIGHT,
12669         EL_ARROW_DOWN,
12670         EL_ARROW_LEFT
12671       },
12672       {
12673         EL_SP_PORT_UP,
12674         EL_SP_PORT_RIGHT,
12675         EL_SP_PORT_DOWN,
12676         EL_SP_PORT_LEFT
12677       },
12678       {
12679         EL_SP_GRAVITY_PORT_UP,
12680         EL_SP_GRAVITY_PORT_RIGHT,
12681         EL_SP_GRAVITY_PORT_DOWN,
12682         EL_SP_GRAVITY_PORT_LEFT
12683       },
12684       {
12685         EL_SP_GRAVITY_ON_PORT_UP,
12686         EL_SP_GRAVITY_ON_PORT_RIGHT,
12687         EL_SP_GRAVITY_ON_PORT_DOWN,
12688         EL_SP_GRAVITY_ON_PORT_LEFT
12689       },
12690       {
12691         EL_SP_GRAVITY_OFF_PORT_UP,
12692         EL_SP_GRAVITY_OFF_PORT_RIGHT,
12693         EL_SP_GRAVITY_OFF_PORT_DOWN,
12694         EL_SP_GRAVITY_OFF_PORT_LEFT
12695       },
12696       {
12697         EL_MOLE_UP,
12698         EL_MOLE_RIGHT,
12699         EL_MOLE_DOWN,
12700         EL_MOLE_LEFT
12701       },
12702       {
12703         EL_BALLOON_SWITCH_UP,
12704         EL_BALLOON_SWITCH_RIGHT,
12705         EL_BALLOON_SWITCH_DOWN,
12706         EL_BALLOON_SWITCH_LEFT
12707       },
12708       {
12709         EL_MM_MCDUFFIN_UP,
12710         EL_MM_MCDUFFIN_RIGHT,
12711         EL_MM_MCDUFFIN_DOWN,
12712         EL_MM_MCDUFFIN_LEFT
12713       },
12714       {
12715         EL_MM_MIRROR_FIXED_1,
12716         EL_MM_MIRROR_FIXED_4,
12717         EL_MM_MIRROR_FIXED_3,
12718         EL_MM_MIRROR_FIXED_2
12719       },
12720       {
12721         EL_MM_STEEL_GRID_FIXED_1,
12722         EL_MM_STEEL_GRID_FIXED_4,
12723         EL_MM_STEEL_GRID_FIXED_2,
12724         EL_MM_STEEL_GRID_FIXED_3
12725       },
12726       {
12727         EL_MM_WOODEN_GRID_FIXED_1,
12728         EL_MM_WOODEN_GRID_FIXED_4,
12729         EL_MM_WOODEN_GRID_FIXED_2,
12730         EL_MM_WOODEN_GRID_FIXED_3
12731       },
12732       {
12733         EL_MM_POLARIZER_CROSS_1,
12734         EL_MM_POLARIZER_CROSS_4,
12735         EL_MM_POLARIZER_CROSS_3,
12736         EL_MM_POLARIZER_CROSS_2
12737       },
12738       {
12739         EL_MM_PACMAN_UP,
12740         EL_MM_PACMAN_RIGHT,
12741         EL_MM_PACMAN_DOWN,
12742         EL_MM_PACMAN_LEFT
12743       },
12744       {
12745         EL_DF_LASER_UP,
12746         EL_DF_LASER_RIGHT,
12747         EL_DF_LASER_DOWN,
12748         EL_DF_LASER_LEFT
12749       },
12750       {
12751         EL_DF_RECEIVER_UP,
12752         EL_DF_RECEIVER_RIGHT,
12753         EL_DF_RECEIVER_DOWN,
12754         EL_DF_RECEIVER_LEFT
12755       },
12756       {
12757         EL_DF_SLOPE_1,
12758         EL_DF_SLOPE_4,
12759         EL_DF_SLOPE_3,
12760         EL_DF_SLOPE_2
12761       },
12762
12763       {
12764         -1,
12765       },
12766     };
12767     static int rotatable_elements_8[][8] =
12768     {
12769       {
12770         EL_DF_STEEL_GRID_FIXED_1,
12771         EL_DF_STEEL_GRID_FIXED_8,
12772         EL_DF_STEEL_GRID_FIXED_7,
12773         EL_DF_STEEL_GRID_FIXED_6,
12774         EL_DF_STEEL_GRID_FIXED_5,
12775         EL_DF_STEEL_GRID_FIXED_4,
12776         EL_DF_STEEL_GRID_FIXED_3,
12777         EL_DF_STEEL_GRID_FIXED_2
12778       },
12779       {
12780         EL_DF_WOODEN_GRID_FIXED_1,
12781         EL_DF_WOODEN_GRID_FIXED_8,
12782         EL_DF_WOODEN_GRID_FIXED_7,
12783         EL_DF_WOODEN_GRID_FIXED_6,
12784         EL_DF_WOODEN_GRID_FIXED_5,
12785         EL_DF_WOODEN_GRID_FIXED_4,
12786         EL_DF_WOODEN_GRID_FIXED_3,
12787         EL_DF_WOODEN_GRID_FIXED_2
12788       },
12789       {
12790         EL_DF_STEEL_GRID_ROTATING_1,
12791         EL_DF_STEEL_GRID_ROTATING_8,
12792         EL_DF_STEEL_GRID_ROTATING_7,
12793         EL_DF_STEEL_GRID_ROTATING_6,
12794         EL_DF_STEEL_GRID_ROTATING_5,
12795         EL_DF_STEEL_GRID_ROTATING_4,
12796         EL_DF_STEEL_GRID_ROTATING_3,
12797         EL_DF_STEEL_GRID_ROTATING_2
12798       },
12799       {
12800         EL_DF_WOODEN_GRID_ROTATING_1,
12801         EL_DF_WOODEN_GRID_ROTATING_8,
12802         EL_DF_WOODEN_GRID_ROTATING_7,
12803         EL_DF_WOODEN_GRID_ROTATING_6,
12804         EL_DF_WOODEN_GRID_ROTATING_5,
12805         EL_DF_WOODEN_GRID_ROTATING_4,
12806         EL_DF_WOODEN_GRID_ROTATING_3,
12807         EL_DF_WOODEN_GRID_ROTATING_2
12808       },
12809
12810       {
12811         -1,
12812       },
12813     };
12814     static int rotatable_elements_16[][16] =
12815     {
12816       {
12817         EL_MM_MIRROR_1,
12818         EL_MM_MIRROR_16,
12819         EL_MM_MIRROR_15,
12820         EL_MM_MIRROR_14,
12821         EL_MM_MIRROR_13,
12822         EL_MM_MIRROR_12,
12823         EL_MM_MIRROR_11,
12824         EL_MM_MIRROR_10,
12825         EL_MM_MIRROR_9,
12826         EL_MM_MIRROR_8,
12827         EL_MM_MIRROR_7,
12828         EL_MM_MIRROR_6,
12829         EL_MM_MIRROR_5,
12830         EL_MM_MIRROR_4,
12831         EL_MM_MIRROR_3,
12832         EL_MM_MIRROR_2
12833       },
12834       {
12835         EL_MM_TELEPORTER_5,
12836         EL_MM_TELEPORTER_4,
12837         EL_MM_TELEPORTER_3,
12838         EL_MM_TELEPORTER_2,
12839         EL_MM_TELEPORTER_1,
12840         EL_MM_TELEPORTER_16,
12841         EL_MM_TELEPORTER_15,
12842         EL_MM_TELEPORTER_14,
12843         EL_MM_TELEPORTER_13,
12844         EL_MM_TELEPORTER_12,
12845         EL_MM_TELEPORTER_11,
12846         EL_MM_TELEPORTER_10,
12847         EL_MM_TELEPORTER_9,
12848         EL_MM_TELEPORTER_8,
12849         EL_MM_TELEPORTER_7,
12850         EL_MM_TELEPORTER_6
12851       },
12852       {
12853         EL_MM_TELEPORTER_RED_5,
12854         EL_MM_TELEPORTER_RED_4,
12855         EL_MM_TELEPORTER_RED_3,
12856         EL_MM_TELEPORTER_RED_2,
12857         EL_MM_TELEPORTER_RED_1,
12858         EL_MM_TELEPORTER_RED_16,
12859         EL_MM_TELEPORTER_RED_15,
12860         EL_MM_TELEPORTER_RED_14,
12861         EL_MM_TELEPORTER_RED_13,
12862         EL_MM_TELEPORTER_RED_12,
12863         EL_MM_TELEPORTER_RED_11,
12864         EL_MM_TELEPORTER_RED_10,
12865         EL_MM_TELEPORTER_RED_9,
12866         EL_MM_TELEPORTER_RED_8,
12867         EL_MM_TELEPORTER_RED_7,
12868         EL_MM_TELEPORTER_RED_6
12869       },
12870       {
12871         EL_MM_TELEPORTER_YELLOW_5,
12872         EL_MM_TELEPORTER_YELLOW_4,
12873         EL_MM_TELEPORTER_YELLOW_3,
12874         EL_MM_TELEPORTER_YELLOW_2,
12875         EL_MM_TELEPORTER_YELLOW_1,
12876         EL_MM_TELEPORTER_YELLOW_16,
12877         EL_MM_TELEPORTER_YELLOW_15,
12878         EL_MM_TELEPORTER_YELLOW_14,
12879         EL_MM_TELEPORTER_YELLOW_13,
12880         EL_MM_TELEPORTER_YELLOW_12,
12881         EL_MM_TELEPORTER_YELLOW_11,
12882         EL_MM_TELEPORTER_YELLOW_10,
12883         EL_MM_TELEPORTER_YELLOW_9,
12884         EL_MM_TELEPORTER_YELLOW_8,
12885         EL_MM_TELEPORTER_YELLOW_7,
12886         EL_MM_TELEPORTER_YELLOW_6
12887       },
12888       {
12889         EL_MM_TELEPORTER_GREEN_5,
12890         EL_MM_TELEPORTER_GREEN_4,
12891         EL_MM_TELEPORTER_GREEN_3,
12892         EL_MM_TELEPORTER_GREEN_2,
12893         EL_MM_TELEPORTER_GREEN_1,
12894         EL_MM_TELEPORTER_GREEN_16,
12895         EL_MM_TELEPORTER_GREEN_15,
12896         EL_MM_TELEPORTER_GREEN_14,
12897         EL_MM_TELEPORTER_GREEN_13,
12898         EL_MM_TELEPORTER_GREEN_12,
12899         EL_MM_TELEPORTER_GREEN_11,
12900         EL_MM_TELEPORTER_GREEN_10,
12901         EL_MM_TELEPORTER_GREEN_9,
12902         EL_MM_TELEPORTER_GREEN_8,
12903         EL_MM_TELEPORTER_GREEN_7,
12904         EL_MM_TELEPORTER_GREEN_6
12905       },
12906       {
12907         EL_MM_TELEPORTER_BLUE_5,
12908         EL_MM_TELEPORTER_BLUE_4,
12909         EL_MM_TELEPORTER_BLUE_3,
12910         EL_MM_TELEPORTER_BLUE_2,
12911         EL_MM_TELEPORTER_BLUE_1,
12912         EL_MM_TELEPORTER_BLUE_16,
12913         EL_MM_TELEPORTER_BLUE_15,
12914         EL_MM_TELEPORTER_BLUE_14,
12915         EL_MM_TELEPORTER_BLUE_13,
12916         EL_MM_TELEPORTER_BLUE_12,
12917         EL_MM_TELEPORTER_BLUE_11,
12918         EL_MM_TELEPORTER_BLUE_10,
12919         EL_MM_TELEPORTER_BLUE_9,
12920         EL_MM_TELEPORTER_BLUE_8,
12921         EL_MM_TELEPORTER_BLUE_7,
12922         EL_MM_TELEPORTER_BLUE_6
12923       },
12924       {
12925         EL_MM_POLARIZER_1,
12926         EL_MM_POLARIZER_16,
12927         EL_MM_POLARIZER_15,
12928         EL_MM_POLARIZER_14,
12929         EL_MM_POLARIZER_13,
12930         EL_MM_POLARIZER_12,
12931         EL_MM_POLARIZER_11,
12932         EL_MM_POLARIZER_10,
12933         EL_MM_POLARIZER_9,
12934         EL_MM_POLARIZER_8,
12935         EL_MM_POLARIZER_7,
12936         EL_MM_POLARIZER_6,
12937         EL_MM_POLARIZER_5,
12938         EL_MM_POLARIZER_4,
12939         EL_MM_POLARIZER_3,
12940         EL_MM_POLARIZER_2
12941       },
12942       {
12943         EL_DF_MIRROR_1,
12944         EL_DF_MIRROR_16,
12945         EL_DF_MIRROR_15,
12946         EL_DF_MIRROR_14,
12947         EL_DF_MIRROR_13,
12948         EL_DF_MIRROR_12,
12949         EL_DF_MIRROR_11,
12950         EL_DF_MIRROR_10,
12951         EL_DF_MIRROR_9,
12952         EL_DF_MIRROR_8,
12953         EL_DF_MIRROR_7,
12954         EL_DF_MIRROR_6,
12955         EL_DF_MIRROR_5,
12956         EL_DF_MIRROR_4,
12957         EL_DF_MIRROR_3,
12958         EL_DF_MIRROR_2
12959       },
12960       {
12961         EL_DF_MIRROR_ROTATING_1,
12962         EL_DF_MIRROR_ROTATING_16,
12963         EL_DF_MIRROR_ROTATING_15,
12964         EL_DF_MIRROR_ROTATING_14,
12965         EL_DF_MIRROR_ROTATING_13,
12966         EL_DF_MIRROR_ROTATING_12,
12967         EL_DF_MIRROR_ROTATING_11,
12968         EL_DF_MIRROR_ROTATING_10,
12969         EL_DF_MIRROR_ROTATING_9,
12970         EL_DF_MIRROR_ROTATING_8,
12971         EL_DF_MIRROR_ROTATING_7,
12972         EL_DF_MIRROR_ROTATING_6,
12973         EL_DF_MIRROR_ROTATING_5,
12974         EL_DF_MIRROR_ROTATING_4,
12975         EL_DF_MIRROR_ROTATING_3,
12976         EL_DF_MIRROR_ROTATING_2
12977       },
12978       {
12979         EL_DF_MIRROR_FIXED_1,
12980         EL_DF_MIRROR_FIXED_16,
12981         EL_DF_MIRROR_FIXED_15,
12982         EL_DF_MIRROR_FIXED_14,
12983         EL_DF_MIRROR_FIXED_13,
12984         EL_DF_MIRROR_FIXED_12,
12985         EL_DF_MIRROR_FIXED_11,
12986         EL_DF_MIRROR_FIXED_10,
12987         EL_DF_MIRROR_FIXED_9,
12988         EL_DF_MIRROR_FIXED_8,
12989         EL_DF_MIRROR_FIXED_7,
12990         EL_DF_MIRROR_FIXED_6,
12991         EL_DF_MIRROR_FIXED_5,
12992         EL_DF_MIRROR_FIXED_4,
12993         EL_DF_MIRROR_FIXED_3,
12994         EL_DF_MIRROR_FIXED_2
12995       },
12996
12997       {
12998         -1,
12999       },
13000     };
13001     int i, j;
13002
13003     for (i = 0; swappable_elements[i][0] != -1; i++)
13004     {
13005       int element1 = swappable_elements[i][0];
13006       int element2 = swappable_elements[i][1];
13007
13008       if (old_element == element1 || old_element == element2)
13009         new_element = (old_element == element1 ? element2 : element1);
13010     }
13011
13012     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
13013     {
13014       for (j = 0; j < 4; j++)
13015       {
13016         int element = rotatable_elements_4[i][j];
13017
13018         if (old_element == element)
13019           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
13020                          button == 2 ? rotatable_elements_4[i][0]           :
13021                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
13022                          old_element);
13023       }
13024     }
13025
13026     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
13027     {
13028       for (j = 0; j < 8; j++)
13029       {
13030         int element = rotatable_elements_8[i][j];
13031
13032         if (old_element == element)
13033           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
13034                          button == 2 ? rotatable_elements_8[i][0]           :
13035                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
13036                          old_element);
13037       }
13038     }
13039
13040     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
13041     {
13042       for (j = 0; j < 16; j++)
13043       {
13044         int element = rotatable_elements_16[i][j];
13045
13046         if (old_element == element)
13047           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
13048                          button == 2 ? rotatable_elements_16[i][0]             :
13049                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
13050                          old_element);
13051       }
13052     }
13053
13054     if (old_element != new_element)
13055     {
13056       int max_infotext_len = getMaxInfoTextLength();
13057       char infotext[MAX_OUTPUT_LINESIZE + 1];
13058
13059       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
13060       infotext[max_infotext_len] = '\0';
13061
13062       ClearEditorGadgetInfoText();
13063
13064       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
13065                 infotext);
13066     }
13067   }
13068
13069   if (IS_MM_WALL_EDITOR(new_element))
13070     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
13071   else
13072     SetElementSimple(x, y, new_element, change_level);
13073
13074   last_x = x;
13075   last_y = y;
13076 }
13077
13078 static void ResetIntelliDraw(void)
13079 {
13080   int x, y;
13081
13082   for (x = 0; x < lev_fieldx; x++)
13083     for (y = 0; y < lev_fieldy; y++)
13084       IntelliDrawBuffer[x][y] = Tile[x][y];
13085
13086   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
13087 }
13088
13089 static boolean draw_mode_hires = FALSE;
13090
13091 static boolean isHiresTileElement(int element)
13092 {
13093   return (IS_MM_WALL(element)        || element == EL_EMPTY);
13094 }
13095
13096 static boolean isHiresDrawElement(int element)
13097 {
13098   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
13099 }
13100
13101 static int numHiresTiles(int element)
13102 {
13103   if (IS_MM_WALL(element))
13104     return get_number_of_bits(MM_WALL_BITS(element));
13105
13106   return 1;
13107 }
13108
13109 static void SetDrawModeHiRes(int element)
13110 {
13111   draw_mode_hires =
13112     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13113      isHiresDrawElement(element));
13114 }
13115
13116 static boolean getDrawModeHiRes(void)
13117 {
13118   return draw_mode_hires;
13119 }
13120
13121 static int getLoResScreenPos(int pos)
13122 {
13123   return (getDrawModeHiRes() ? pos / 2 : pos);
13124 }
13125
13126 static int getLoResScreenMod(int pos)
13127 {
13128   return (getDrawModeHiRes() ? pos % 2 : 0);
13129 }
13130
13131 static void SetElementExt(int x, int y, int dx, int dy, int element,
13132                           boolean change_level, int button)
13133 {
13134   if (element < 0)
13135     SetElementSimple(x, y, Tile[x][y], change_level);
13136   else if (GetKeyModState() & KMOD_Shift)
13137     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
13138   else
13139     SetElementSimpleExt(x, y, dx, dy, element, change_level);
13140 }
13141
13142 static void SetElement(int x, int y, int element)
13143 {
13144   SetElementExt(x, y, 0, 0, element, TRUE, -1);
13145 }
13146
13147 static void SetElementButton(int x, int y, int dx, int dy, int element,
13148                              int button)
13149 {
13150   SetElementExt(x, y, dx, dy, element, TRUE, button);
13151 }
13152
13153 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
13154 {
13155   int lx = getLoResScreenPos(sx2) + level_xpos;
13156   int ly = getLoResScreenPos(sy2) + level_ypos;
13157   int dx = getLoResScreenMod(sx2);
13158   int dy = getLoResScreenMod(sy2);
13159
13160   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
13161 }
13162
13163 static void SetLevelElementHiRes(int lx2, int ly2, int element)
13164 {
13165   int lx = lx2 / 2;
13166   int ly = ly2 / 2;
13167   int dx = lx2 % 2;
13168   int dy = ly2 % 2;
13169
13170   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
13171 }
13172
13173 static int getLevelElementHiRes(int lx2, int ly2)
13174 {
13175   int lx = lx2 / 2;
13176   int ly = ly2 / 2;
13177   int dx = lx2 % 2;
13178   int dy = ly2 % 2;
13179   int element = Tile[lx][ly];
13180   unsigned int bitmask = (dx + 1) << (dy * 2);
13181
13182   if (IS_MM_WALL(element))
13183   {
13184     if (element & bitmask)
13185       return map_mm_wall_element(element);
13186     else
13187       return EL_EMPTY;
13188   }
13189
13190   return element;
13191 }
13192
13193 static void DrawLineElement(int x, int y, int element, boolean change_level)
13194 {
13195   SetElementHiRes(x, y, element, change_level);
13196 }
13197
13198 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
13199                      int element, boolean change_level)
13200 {
13201   int xsize = ABS(to_x - from_x);
13202   int ysize = ABS(to_y - from_y);
13203   int dx = (to_x < from_x ? -1 : +1);
13204   int dy = (to_y < from_y ? -1 : +1);
13205   int i;
13206
13207   if (from_y == to_y)                   // horizontal line
13208   {
13209     for (i = 0; i <= xsize; i++)
13210       DrawLineElement(from_x + i * dx, from_y, element, change_level);
13211   }
13212   else if (from_x == to_x)              // vertical line
13213   {
13214     for (i = 0; i <= ysize; i++)
13215       DrawLineElement(from_x, from_y + i * dy, element, change_level);
13216   }
13217   else                                  // diagonal line
13218   {
13219     if (ysize < xsize)                  // a < 1
13220     {
13221       float a = (float)ysize / (float)xsize;
13222
13223       for (i = 0; i <= xsize; i++)
13224       {
13225         int x = dx * i;
13226         int y = dy * (int)(a * i + 0.5);
13227
13228         DrawLineElement(from_x + x, from_y + y, element, change_level);
13229       }
13230     }
13231     else                                // a >= 1
13232     {
13233       float a = (float)xsize / (float)ysize;
13234
13235       for (i = 0; i <= ysize; i++)
13236       {
13237         int x = dx * (int)(a * i + 0.5);
13238         int y = dy * i;
13239
13240         DrawLineElement(from_x + x, from_y + y, element, change_level);
13241       }
13242     }
13243   }
13244 }
13245
13246 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
13247                     int element, boolean change_level)
13248 {
13249   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
13250   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
13251   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
13252   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
13253 }
13254
13255 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
13256                           int element, boolean change_level)
13257 {
13258   int y;
13259
13260   if (from_y > to_y)
13261     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
13262
13263   for (y = from_y; y <= to_y; y++)
13264     DrawLine(from_x, y, to_x, y, element, change_level);
13265 }
13266
13267 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
13268                        int element, boolean change_level)
13269 {
13270   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
13271   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
13272   int len_x = ABS(to_x - from_x);
13273   int len_y = ABS(to_y - from_y);
13274   int radius, x, y;
13275
13276   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
13277
13278   // not optimal (some points get drawn twice) but simple,
13279   // and fast enough for the few points we are drawing
13280
13281   for (x = 0; x <= radius; x++)
13282   {
13283     int sx, sy, sx2, sy2, lx, ly;
13284
13285     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
13286
13287     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13288     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13289     sx = getLoResScreenPos(sx2);
13290     sy = getLoResScreenPos(sy2);
13291     lx = sx + level_xpos;
13292     ly = sy + level_ypos;
13293
13294     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13295       DrawLineElement(sx2, sy2, element, change_level);
13296   }
13297
13298   for (y = 0; y <= radius; y++)
13299   {
13300     int sx, sy, sx2, sy2, lx, ly;
13301
13302     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
13303
13304     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13305     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13306     sx = getLoResScreenPos(sx2);
13307     sy = getLoResScreenPos(sy2);
13308     lx = sx + level_xpos;
13309     ly = sy + level_ypos;
13310
13311     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13312       DrawLineElement(sx2, sy2, element, change_level);
13313   }
13314 }
13315
13316 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
13317                     int element, boolean change_level)
13318 {
13319   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13320   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13321
13322   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13323 }
13324
13325 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
13326
13327 #if DRAW_CIRCLES_BUTTON_AVAILABLE
13328 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
13329                        int element, boolean change_level)
13330 {
13331   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13332   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13333   int mirror_to_x2 = from_x - (to_x2 - from_x);
13334   int mirror_to_y2 = from_y - (to_y2 - from_y);
13335
13336   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13337   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
13338   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
13339   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element, change_level);
13340 }
13341 #endif
13342
13343 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
13344 {
13345   int from_sx, from_sy;
13346   int to_sx, to_sy;
13347
13348   if (from_x > to_x)
13349     swap_numbers(&from_x, &to_x);
13350
13351   if (from_y > to_y)
13352     swap_numbers(&from_y, &to_y);
13353
13354   from_sx = SX + from_x * ed_tilesize;
13355   from_sy = SY + from_y * ed_tilesize;
13356   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
13357   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
13358
13359   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
13360   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
13361   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
13362   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
13363
13364   if (from_x == to_x && from_y == to_y)
13365     MarkTileDirty(from_x/2, from_y/2);
13366   else
13367     redraw_mask |= REDRAW_FIELD;
13368 }
13369
13370 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
13371                         int element, boolean change_level)
13372 {
13373   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
13374 }
13375
13376 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
13377                        int element, boolean change_level)
13378 {
13379   if (element == -1 || change_level)
13380     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
13381   else
13382     DrawAreaBorder(from_x, from_y, to_x, to_y);
13383 }
13384
13385 // values for CopyBrushExt()
13386 #define CB_AREA_TO_BRUSH                0
13387 #define CB_BRUSH_TO_CURSOR              1
13388 #define CB_BRUSH_TO_LEVEL               2
13389 #define CB_DELETE_OLD_CURSOR            3
13390 #define CB_DUMP_BRUSH                   4
13391 #define CB_DUMP_BRUSH_SMALL             5
13392 #define CB_CLIPBOARD_TO_BRUSH           6
13393 #define CB_BRUSH_TO_CLIPBOARD           7
13394 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
13395 #define CB_UPDATE_BRUSH_POSITION        9
13396 #define CB_FLIP_BRUSH_X                 10
13397 #define CB_FLIP_BRUSH_Y                 11
13398 #define CB_FLIP_BRUSH_XY                12
13399
13400 #define MAX_CB_PART_SIZE        10
13401 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
13402 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
13403 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
13404                                  MAX_CB_NUM_LINES *     \
13405                                  MAX_CB_PART_SIZE)
13406
13407 static int getFlippedTileExt(int map[], int element)
13408 {
13409   int i;
13410
13411   for (i = 0; map[i] != -1; i++)
13412     if (map[i] == element)
13413       return map[i ^ 1];        // get flipped element by flipping LSB of index
13414
13415   return element;
13416 }
13417
13418 static int getFlippedTileX(int element)
13419 {
13420   int map[] =
13421   {
13422     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_RIGHT,
13423     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_RIGHT,
13424     EL_BUG_LEFT,                        EL_BUG_RIGHT,
13425     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_RIGHT,
13426     EL_PACMAN_LEFT,                     EL_PACMAN_RIGHT,
13427     EL_ARROW_LEFT,                      EL_ARROW_RIGHT,
13428     EL_MOLE_LEFT,                       EL_MOLE_RIGHT,
13429     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_RIGHT,
13430     EL_YAMYAM_LEFT,                     EL_YAMYAM_RIGHT,
13431     EL_SP_PORT_LEFT,                    EL_SP_PORT_RIGHT,
13432     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_RIGHT,
13433     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_RIGHT,
13434     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_RIGHT,
13435     EL_CONVEYOR_BELT_1_LEFT,            EL_CONVEYOR_BELT_1_RIGHT,
13436     EL_CONVEYOR_BELT_2_LEFT,            EL_CONVEYOR_BELT_2_RIGHT,
13437     EL_CONVEYOR_BELT_3_LEFT,            EL_CONVEYOR_BELT_3_RIGHT,
13438     EL_CONVEYOR_BELT_4_LEFT,            EL_CONVEYOR_BELT_4_RIGHT,
13439     EL_SPRING_LEFT,                     EL_SPRING_RIGHT,
13440     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_RIGHT,
13441     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_VERTICAL_RIGHT,
13442     EL_TUBE_LEFT_UP,                    EL_TUBE_RIGHT_UP,
13443     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_DOWN,
13444     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_RIGHT,
13445     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_TOPRIGHT,
13446     EL_DC_STEELWALL_1_BOTTOMLEFT,       EL_DC_STEELWALL_1_BOTTOMRIGHT,
13447     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_TOPRIGHT_2,
13448     EL_DC_STEELWALL_1_BOTTOMLEFT_2,     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13449     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_RIGHT,
13450     EL_ACID_POOL_TOPLEFT,               EL_ACID_POOL_TOPRIGHT,
13451     EL_ACID_POOL_BOTTOMLEFT,            EL_ACID_POOL_BOTTOMRIGHT,
13452
13453     -1
13454   };
13455
13456   return getFlippedTileExt(map, element);
13457 }
13458
13459 static int getFlippedTileY(int element)
13460 {
13461   int map[] =
13462   {
13463     EL_BD_BUTTERFLY_UP,                 EL_BD_BUTTERFLY_DOWN,
13464     EL_BD_FIREFLY_UP,                   EL_BD_FIREFLY_DOWN,
13465     EL_BUG_UP,                          EL_BUG_DOWN,
13466     EL_SPACESHIP_UP,                    EL_SPACESHIP_DOWN,
13467     EL_PACMAN_UP,                       EL_PACMAN_DOWN,
13468     EL_ARROW_UP,                        EL_ARROW_DOWN,
13469     EL_MOLE_UP,                         EL_MOLE_DOWN,
13470     EL_BALLOON_SWITCH_UP,               EL_BALLOON_SWITCH_DOWN,
13471     EL_YAMYAM_UP,                       EL_YAMYAM_DOWN,
13472     EL_SP_PORT_UP,                      EL_SP_PORT_DOWN,
13473     EL_SP_GRAVITY_PORT_UP,              EL_SP_GRAVITY_PORT_DOWN,
13474     EL_SP_GRAVITY_ON_PORT_UP,           EL_SP_GRAVITY_ON_PORT_DOWN,
13475     EL_SP_GRAVITY_OFF_PORT_UP,          EL_SP_GRAVITY_OFF_PORT_DOWN,
13476     EL_SP_CHIP_TOP,                     EL_SP_CHIP_BOTTOM,
13477     EL_TUBE_HORIZONTAL_UP,              EL_TUBE_HORIZONTAL_DOWN,
13478     EL_TUBE_LEFT_UP,                    EL_TUBE_LEFT_DOWN,
13479     EL_TUBE_RIGHT_UP,                   EL_TUBE_RIGHT_DOWN,
13480     EL_DC_STEELWALL_1_TOP,              EL_DC_STEELWALL_1_BOTTOM,
13481     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_BOTTOMLEFT,
13482     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMRIGHT,
13483     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13484     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13485     EL_DC_STEELWALL_2_TOP,              EL_DC_STEELWALL_2_BOTTOM,
13486     EL_EMC_WALL_1,                      EL_EMC_WALL_3,
13487
13488     -1
13489   };
13490
13491   return getFlippedTileExt(map, element);
13492 }
13493
13494 static int getFlippedTileXY(int element)
13495 {
13496   int map[] =
13497   {
13498     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_UP,
13499     EL_BD_BUTTERFLY_RIGHT,              EL_BD_BUTTERFLY_DOWN,
13500     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_UP,
13501     EL_BD_FIREFLY_RIGHT,                EL_BD_FIREFLY_DOWN,
13502     EL_BUG_LEFT,                        EL_BUG_UP,
13503     EL_BUG_RIGHT,                       EL_BUG_DOWN,
13504     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_UP,
13505     EL_SPACESHIP_RIGHT,                 EL_SPACESHIP_DOWN,
13506     EL_PACMAN_LEFT,                     EL_PACMAN_UP,
13507     EL_PACMAN_RIGHT,                    EL_PACMAN_DOWN,
13508     EL_ARROW_LEFT,                      EL_ARROW_UP,
13509     EL_ARROW_RIGHT,                     EL_ARROW_DOWN,
13510     EL_MOLE_LEFT,                       EL_MOLE_UP,
13511     EL_MOLE_RIGHT,                      EL_MOLE_DOWN,
13512     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_UP,
13513     EL_BALLOON_SWITCH_RIGHT,            EL_BALLOON_SWITCH_DOWN,
13514     EL_YAMYAM_LEFT,                     EL_YAMYAM_UP,
13515     EL_YAMYAM_RIGHT,                    EL_YAMYAM_DOWN,
13516     EL_SP_PORT_LEFT,                    EL_SP_PORT_UP,
13517     EL_SP_PORT_RIGHT,                   EL_SP_PORT_DOWN,
13518     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_UP,
13519     EL_SP_GRAVITY_PORT_RIGHT,           EL_SP_GRAVITY_PORT_DOWN,
13520     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_UP,
13521     EL_SP_GRAVITY_ON_PORT_RIGHT,        EL_SP_GRAVITY_ON_PORT_DOWN,
13522     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_UP,
13523     EL_SP_GRAVITY_OFF_PORT_RIGHT,       EL_SP_GRAVITY_OFF_PORT_DOWN,
13524     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_TOP,
13525     EL_SP_CHIP_RIGHT,                   EL_SP_CHIP_BOTTOM,
13526     EL_TUBE_VERTICAL,                   EL_TUBE_HORIZONTAL,
13527     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_HORIZONTAL_UP,
13528     EL_TUBE_VERTICAL_RIGHT,             EL_TUBE_HORIZONTAL_DOWN,
13529     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_UP,
13530     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_TOP,
13531     EL_DC_STEELWALL_1_RIGHT,            EL_DC_STEELWALL_1_BOTTOM,
13532     EL_DC_STEELWALL_1_HORIZONTAL,       EL_DC_STEELWALL_1_VERTICAL,
13533     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMLEFT,
13534     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13535     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_TOP,
13536     EL_DC_STEELWALL_2_RIGHT,            EL_DC_STEELWALL_2_BOTTOM,
13537     EL_DC_STEELWALL_2_HORIZONTAL,       EL_DC_STEELWALL_2_VERTICAL,
13538     EL_EXPANDABLE_WALL_HORIZONTAL,      EL_EXPANDABLE_WALL_VERTICAL,
13539     EL_EXPANDABLE_STEELWALL_HORIZONTAL, EL_EXPANDABLE_STEELWALL_VERTICAL,
13540
13541     -1
13542   };
13543
13544   return getFlippedTileExt(map, element);
13545 }
13546
13547 static int getFlippedTile(int element, int mode)
13548 {
13549   if (IS_MM_ELEMENT(element))
13550   {
13551     // get MM game element
13552     element = map_element_RND_to_MM(element);
13553
13554     // get flipped game element
13555     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX_MM(element) :
13556                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY_MM(element) :
13557                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY_MM(element) :
13558                element);
13559
13560     // get RND game element again
13561     element = map_element_MM_to_RND(element);
13562   }
13563   else
13564   {
13565     // get flipped game element
13566     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX(element) :
13567                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY(element) :
13568                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY(element) :
13569                element);
13570   }
13571
13572   return element;
13573 }
13574
13575 static void SwapFlippedTiles(short *tile1, short *tile2, int mode)
13576 {
13577   // flip tiles
13578   short tile1_flipped = getFlippedTile(*tile1, mode);
13579   short tile2_flipped = getFlippedTile(*tile2, mode);
13580
13581   // swap tiles
13582   *tile1 = tile2_flipped;
13583   *tile2 = tile1_flipped;
13584 }
13585
13586 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
13587 {
13588   DrawLineElement(sx, sy, element, change_level);
13589 }
13590
13591 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
13592                          int button, int mode)
13593 {
13594   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
13595   static int brush_width, brush_height;
13596   static int last_cursor_x = -1, last_cursor_y = -1;
13597   static boolean delete_old_brush = FALSE;
13598   int new_element = BUTTON_ELEMENT(button);
13599   int x, y;
13600
13601   if (mode == CB_DUMP_BRUSH ||
13602       mode == CB_DUMP_BRUSH_SMALL ||
13603       mode == CB_BRUSH_TO_CLIPBOARD ||
13604       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13605   {
13606     if (edit_mode != ED_MODE_DRAWING)
13607       return;
13608
13609     char part[MAX_CB_PART_SIZE + 1] = "";
13610     char text[MAX_CB_TEXT_SIZE + 1] = "";
13611     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
13612     int height = (draw_with_brush ? brush_height : lev_fieldy);
13613     char *format = "%s%03d";
13614
13615     for (y = 0; y < height; y++)
13616       for (x = 0; x < width; x++)
13617         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
13618           format = "%s%04d";
13619
13620     for (y = 0; y < height; y++)
13621     {
13622       for (x = 0; x < width; x++)
13623       {
13624         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
13625         char *prefix = (mode == CB_DUMP_BRUSH ||
13626                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
13627
13628         if (element >= NUM_FILE_ELEMENTS)
13629           element = EL_UNKNOWN;
13630
13631         // copy brush to level sketch text buffer for the R'n'D forum:
13632         // - large tiles: `xxx or `xxxx (0x60 ASCII)
13633         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
13634         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
13635         strcat(text, part);
13636       }
13637
13638       strcat(text, "\n");
13639     }
13640
13641     if (mode == CB_BRUSH_TO_CLIPBOARD ||
13642         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13643       SDL_SetClipboardText(text);
13644     else
13645       Print("%s", text);        // print brush data to console and log file
13646
13647     return;
13648   }
13649
13650   if (mode == CB_CLIPBOARD_TO_BRUSH)
13651   {
13652     if (edit_mode != ED_MODE_DRAWING)
13653       return;
13654
13655     if (!SDL_HasClipboardText())
13656     {
13657       Request("Clipboard is empty!", REQ_CONFIRM);
13658
13659       return;
13660     }
13661
13662     boolean copy_to_brush = (draw_with_brush ||
13663                              drawing_function == GADGET_ID_GRAB_BRUSH);
13664
13665     // this will delete the old brush, if already drawing with a brush
13666     if (copy_to_brush)
13667       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
13668
13669     // initialization is required for "odd" (incomplete) clipboard content
13670     for (x = 0; x < MAX_LEV_FIELDX; x++)
13671       for (y = 0; y < MAX_LEV_FIELDY; y++)
13672         brush_buffer[x][y] = EL_EMPTY;
13673
13674     brush_width  = 0;
13675     brush_height = 0;
13676     x = 0;
13677     y = 0;
13678
13679     char *clipboard_text = SDL_GetClipboardText();
13680     char *ptr = clipboard_text;
13681     boolean allow_new_row = FALSE;
13682     boolean stop = FALSE;
13683
13684     while (*ptr && !stop)
13685     {
13686       boolean prefix_found = FALSE;
13687       boolean start_new_row = FALSE;
13688
13689       // level sketch element number prefixes (may be multi-byte characters)
13690       char *prefix_list[] = { "`", "¸" };
13691       int i;
13692
13693       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
13694       {
13695         char *prefix = prefix_list[i];
13696
13697         // check if string is large enough for prefix
13698         if (strlen(ptr) < strlen(prefix))
13699         {
13700           stop = TRUE;
13701
13702           break;
13703         }
13704
13705         // check if string starts with prefix
13706         if (strPrefix(ptr, prefix))
13707         {
13708           ptr += strlen(prefix);
13709
13710           prefix_found = TRUE;
13711
13712           break;
13713         }
13714       }
13715
13716       // check if prefix found and followed by (at least) three digits
13717       if (prefix_found &&
13718           strlen(ptr) >= 3 &&
13719           ptr[0] >= '0' && ptr[0] <= '9' &&
13720           ptr[1] >= '0' && ptr[1] <= '9' &&
13721           ptr[2] >= '0' && ptr[2] <= '9')
13722       {
13723         int element = ((ptr[0] - '0') * 100 +
13724                        (ptr[1] - '0') * 10 +
13725                        (ptr[2] - '0'));
13726
13727         ptr += 3;
13728
13729         // level sketch element number might consist of four digits
13730         if (ptr[0] >= '0' && ptr[0] <= '9')
13731         {
13732           element = element * 10 + (ptr[0] - '0');
13733           ptr++;
13734         }
13735
13736         // remap some (historic, now obsolete) elements
13737         element = getMappedElement(element);
13738
13739         if (element >= NUM_FILE_ELEMENTS)
13740           element = EL_UNKNOWN;
13741
13742         brush_buffer[x][y] = element;
13743
13744         brush_width  = MAX(x + 1, brush_width);
13745         brush_height = MAX(y + 1, brush_height);
13746
13747         x++;
13748
13749         if (x >= MAX_LEV_FIELDX)
13750           start_new_row = TRUE;
13751
13752         allow_new_row = TRUE;
13753       }
13754       else
13755       {
13756         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
13757           start_new_row = TRUE;
13758
13759         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
13760       }
13761
13762       if (start_new_row)
13763       {
13764         x = 0;
13765         y++;
13766
13767         if (y >= MAX_LEV_FIELDY)
13768           stop = TRUE;
13769
13770         allow_new_row = FALSE;
13771       }
13772     }
13773
13774     SDL_free(clipboard_text);
13775
13776     if (brush_width == 0 || brush_height == 0)
13777     {
13778       Request("No level sketch found in clipboard!", REQ_CONFIRM);
13779
13780       return;
13781     }
13782
13783     if (copy_to_brush)
13784     {
13785       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
13786       int mx, my;
13787
13788       SDL_GetMouseState(&mx, &my);
13789
13790       // if inside drawing area, activate and draw brush at last mouse position
13791       if (mx >= gi->x && mx < gi->x + gi->width &&
13792           my >= gi->y && my < gi->y + gi->height)
13793         CopyBrushToCursor(last_cursor_x, last_cursor_y);
13794
13795       draw_with_brush = TRUE;
13796     }
13797     else
13798     {
13799       char request[100];
13800
13801       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
13802               brush_width, brush_height);
13803
13804       if (!Request(request, REQ_ASK))
13805         return;
13806
13807       for (x = 0; x < MAX_LEV_FIELDX; x++)
13808         for (y = 0; y < MAX_LEV_FIELDY; y++)
13809           Tile[x][y] = brush_buffer[x][y];
13810
13811       lev_fieldx = level.fieldx = brush_width;
13812       lev_fieldy = level.fieldy = brush_height;
13813
13814       boolean use_bd_engine = TRUE;
13815       boolean use_em_engine = TRUE;
13816       boolean use_sp_engine = TRUE;
13817       boolean use_mm_engine = TRUE;
13818
13819       for (x = 0; x < MAX_LEV_FIELDX; x++)
13820       {
13821         for (y = 0; y < MAX_LEV_FIELDY; y++)
13822         {
13823           int element = Tile[x][y];
13824
13825           if (!IS_BD_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13826             use_bd_engine = FALSE;
13827
13828           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13829             use_em_engine = FALSE;
13830
13831           if (!IS_SP_ELEMENT(element))
13832             use_sp_engine = FALSE;
13833
13834           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
13835             use_mm_engine = FALSE;
13836         }
13837       }
13838
13839       level.game_engine_type = (use_bd_engine ? GAME_ENGINE_TYPE_BD :
13840                                 use_em_engine ? GAME_ENGINE_TYPE_EM :
13841                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
13842                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
13843                                 GAME_ENGINE_TYPE_RND);
13844
13845       // update element selection list
13846       ReinitializeElementList();
13847       ModifyEditorElementList();
13848
13849       SetBorderElement();
13850
13851       DrawEditModeWindow();
13852       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13853     }
13854
13855     return;
13856   }
13857
13858   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
13859     return;
13860
13861   if (mode == CB_AREA_TO_BRUSH)
13862   {
13863     int from_lx, from_ly;
13864
13865     if (from_x > to_x)
13866       swap_numbers(&from_x, &to_x);
13867
13868     if (from_y > to_y)
13869       swap_numbers(&from_y, &to_y);
13870
13871     brush_width = to_x - from_x + 1;
13872     brush_height = to_y - from_y + 1;
13873
13874     from_lx = from_x + level_xpos;
13875     from_ly = from_y + level_ypos;
13876
13877     for (y = 0; y < brush_height; y++)
13878     {
13879       for (x = 0; x < brush_width; x++)
13880       {
13881         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
13882
13883         if (button != 1)
13884           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
13885       }
13886     }
13887
13888     if (button != 1)
13889       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13890
13891     delete_old_brush = FALSE;
13892   }
13893   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
13894            mode == CB_BRUSH_TO_LEVEL)
13895   {
13896     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
13897     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
13898     int cursor_from_x = cursor_x - brush_width / 2;
13899     int cursor_from_y = cursor_y - brush_height / 2;
13900     int border_from_x = cursor_x, border_from_y = cursor_y;
13901     int border_to_x = cursor_x, border_to_y = cursor_y;
13902
13903     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
13904       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13905
13906     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
13907         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
13908     {
13909       delete_old_brush = FALSE;
13910
13911       return;
13912     }
13913
13914     for (y = 0; y < brush_height; y++)
13915     {
13916       for (x = 0; x < brush_width; x++)
13917       {
13918         int sx = cursor_from_x + x;
13919         int sy = cursor_from_y + y;
13920         int lx = sx + level_xpos;
13921         int ly = sy + level_ypos;
13922         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
13923         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
13924                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
13925                        brush_buffer[x][y] : new_element);
13926
13927         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13928         {
13929           if (sx < border_from_x)
13930             border_from_x = sx;
13931           else if (sx > border_to_x)
13932             border_to_x = sx;
13933           if (sy < border_from_y)
13934             border_from_y = sy;
13935           else if (sy > border_to_y)
13936             border_to_y = sy;
13937
13938           DrawBrushElement(sx, sy, element, change_level);
13939         }
13940       }
13941     }
13942
13943     if (mode != CB_DELETE_OLD_CURSOR)
13944       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
13945
13946     last_cursor_x = cursor_x;
13947     last_cursor_y = cursor_y;
13948
13949     delete_old_brush = TRUE;
13950   }
13951   else if (mode == CB_FLIP_BRUSH_X)
13952   {
13953     for (y = 0; y < brush_height; y++)
13954       for (x = 0; x < (brush_width + 1) / 2; x++)
13955         SwapFlippedTiles(&brush_buffer[x][y],
13956                          &brush_buffer[brush_width - x - 1][y], mode);
13957
13958     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13959   }
13960   else if (mode == CB_FLIP_BRUSH_Y)
13961   {
13962     for (y = 0; y < (brush_height + 1) / 2; y++)
13963       for (x = 0; x < brush_width; x++)
13964         SwapFlippedTiles(&brush_buffer[x][y],
13965                          &brush_buffer[x][brush_height - y - 1], mode);
13966
13967     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13968   }
13969   else if (mode == CB_FLIP_BRUSH_XY)
13970   {
13971     CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13972
13973     for (y = 0; y < MAX(brush_width, brush_height); y++)
13974       for (x = 0; x <= y; x++)
13975         SwapFlippedTiles(&brush_buffer[x][y],
13976                          &brush_buffer[y][x], mode);
13977
13978     swap_numbers(&brush_width, &brush_height);
13979
13980     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13981   }
13982
13983   if (mode == CB_UPDATE_BRUSH_POSITION)
13984   {
13985     last_cursor_x = from_x;
13986     last_cursor_y = from_y;
13987   }
13988 }
13989
13990 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
13991                             int button)
13992 {
13993   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
13994 }
13995
13996 static void CopyBrushToLevel(int x, int y, int button)
13997 {
13998   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
13999 }
14000
14001 static void CopyBrushToCursor(int x, int y)
14002 {
14003   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
14004 }
14005
14006 static void UpdateBrushPosition(int x, int y)
14007 {
14008   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
14009 }
14010
14011 static void DeleteBrushFromCursor(void)
14012 {
14013   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
14014 }
14015
14016 static void FlipBrushX(void)
14017 {
14018   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14019 }
14020
14021 static void FlipBrushY(void)
14022 {
14023   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_Y);
14024 }
14025
14026 static void RotateBrush(void)
14027 {
14028   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_XY);
14029   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14030 }
14031
14032 void DumpBrush(void)
14033 {
14034   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
14035 }
14036
14037 void DumpBrush_Small(void)
14038 {
14039   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
14040 }
14041
14042 void CopyClipboardToBrush(void)
14043 {
14044   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
14045 }
14046
14047 void CopyBrushToClipboard(void)
14048 {
14049   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
14050 }
14051
14052 void CopyBrushToClipboard_Small(void)
14053 {
14054   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
14055 }
14056
14057 void UndoLevelEditorOperation(void)
14058 {
14059   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
14060 }
14061
14062 void RedoLevelEditorOperation(void)
14063 {
14064   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14065 }
14066
14067 static void FloodFill(int from_x, int from_y, int fill_element)
14068 {
14069   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
14070 }
14071
14072 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
14073 {
14074   int from_x = from_sx2 + 2 * level_xpos;
14075   int from_y = from_sy2 + 2 * level_ypos;
14076   int max_fillx = lev_fieldx * 2;
14077   int max_filly = lev_fieldy * 2;
14078   short Fill[max_fillx][max_filly];
14079   int x, y;
14080
14081   for (x = 0; x < max_fillx; x++)
14082     for (y = 0; y < max_filly; y++)
14083       Fill[x][y] = getLevelElementHiRes(x, y);
14084
14085   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
14086                     Fill, max_fillx, max_filly);
14087
14088   for (x = 0; x < max_fillx; x++)
14089     for (y = 0; y < max_filly; y++)
14090       if (Fill[x][y] == fill_element)
14091         SetLevelElementHiRes(x, y, Fill[x][y]);
14092 }
14093
14094 // values for DrawLevelText() modes
14095 #define TEXT_INIT               0
14096 #define TEXT_SETCURSOR          1
14097 #define TEXT_WRITECHAR          2
14098 #define TEXT_BACKSPACE          3
14099 #define TEXT_NEWLINE            4
14100 #define TEXT_END                5
14101 #define TEXT_QUERY_TYPING       6
14102
14103 static int DrawLevelText(int sx, int sy, char letter, int mode)
14104 {
14105   static short delete_buffer[MAX_LEV_FIELDX];
14106   static int start_sx;
14107   static int last_sx, last_sy;
14108   static boolean typing = FALSE;
14109   int letter_element;
14110   int lx = 0, ly = 0;
14111
14112   // map lower case letters to upper case and convert special characters
14113   if (letter >= 'a' && letter <= 'z')
14114     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
14115   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
14116     letter_element = EL_CHAR_AUMLAUT;
14117   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
14118     letter_element = EL_CHAR_OUMLAUT;
14119   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
14120     letter_element = EL_CHAR_UUMLAUT;
14121   else if (letter == '^')
14122     letter_element = EL_CHAR_COPYRIGHT;
14123   else
14124     letter_element = EL_CHAR_ASCII0 + letter;
14125
14126   if (mode != TEXT_INIT)
14127   {
14128     if (!typing)
14129       return FALSE;
14130
14131     if (mode != TEXT_SETCURSOR)
14132     {
14133       sx = last_sx;
14134       sy = last_sy;
14135     }
14136
14137     lx = last_sx + level_xpos;
14138     ly = last_sy + level_ypos;
14139   }
14140
14141   switch (mode)
14142   {
14143     case TEXT_INIT:
14144       if (typing)
14145         DrawLevelText(0, 0, 0, TEXT_END);
14146
14147       typing = TRUE;
14148       start_sx = sx;
14149       last_sx = sx;
14150       last_sy = sy;
14151       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
14152       break;
14153
14154     case TEXT_SETCURSOR:
14155       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
14156       DrawAreaBorder(sx, sy, sx, sy);
14157       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
14158                      ed_tilesize, ed_tilesize);
14159       last_sx = sx;
14160       last_sy = sy;
14161       break;
14162
14163     case TEXT_WRITECHAR:
14164       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
14165       {
14166         if (new_element1 >= EL_STEEL_CHAR_START &&
14167             new_element1 <= EL_STEEL_CHAR_END)
14168           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
14169
14170         delete_buffer[sx - start_sx] = Tile[lx][ly];
14171         Tile[lx][ly] = letter_element;
14172
14173         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
14174           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
14175         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14176           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14177         else
14178           DrawLevelText(0, 0, 0, TEXT_END);
14179
14180         level.changed = TRUE;
14181       }
14182       break;
14183
14184     case TEXT_BACKSPACE:
14185       if (sx > start_sx)
14186       {
14187         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
14188         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
14189         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
14190       }
14191       break;
14192
14193     case TEXT_NEWLINE:
14194       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14195         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14196       else
14197         DrawLevelText(0, 0, 0, TEXT_END);
14198       break;
14199
14200     case TEXT_END:
14201       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14202       DrawEditorElement(sx, sy, Tile[lx][ly]);
14203       StopTextInput();
14204       typing = FALSE;
14205       break;
14206
14207     case TEXT_QUERY_TYPING:
14208       break;
14209
14210     default:
14211       break;
14212   }
14213
14214   return typing;
14215 }
14216
14217 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
14218                           int element, boolean change_level)
14219 {
14220   int lx = sx + level_xpos;
14221   int ly = sy + level_ypos;
14222
14223   if (element == -1)
14224     DrawEditorElement(sx, sy, Tile[lx][ly]);
14225   else
14226     DrawAreaBorder(sx, sy, sx, sy);
14227 }
14228
14229 static void CheckLevelBorderElement(boolean redraw_playfield)
14230 {
14231   int last_border_element = BorderElement;
14232
14233   SetBorderElement();
14234
14235   if (redraw_playfield && BorderElement != last_border_element)
14236     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14237 }
14238
14239 static void CopyLevelToUndoBuffer(int mode)
14240 {
14241   static boolean accumulated_undo = FALSE;
14242   boolean new_undo_buffer_position = TRUE;
14243   int x, y;
14244
14245   if (undo_buffer_steps == 0)
14246     accumulated_undo = FALSE;
14247
14248   switch (mode)
14249   {
14250     case UNDO_IMMEDIATE:
14251       accumulated_undo = FALSE;
14252       break;
14253
14254     case UNDO_ACCUMULATE:
14255       if (accumulated_undo)
14256         new_undo_buffer_position = FALSE;
14257       accumulated_undo = TRUE;
14258       break;
14259
14260     default:
14261       break;
14262   }
14263
14264   if (new_undo_buffer_position)
14265   {
14266     // advance position in undo buffer ring
14267     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14268
14269     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
14270       undo_buffer_steps++;
14271   }
14272
14273   // always reset redo buffer when storing level change into undo buffer
14274   redo_buffer_steps = 0;
14275
14276   for (x = 0; x < lev_fieldx; x++)
14277     for (y = 0; y < lev_fieldy; y++)
14278       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
14279
14280   // check if drawing operation forces change of border style
14281   CheckLevelBorderElement(TRUE);
14282
14283   level.changed = TRUE;
14284 }
14285
14286 static void RandomPlacement(int new_element)
14287 {
14288   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
14289   int num_free_positions = 0;
14290   int num_percentage, num_elements;
14291   int x, y;
14292
14293   ResetIntelliDraw();
14294
14295   // determine number of free positions for randomly placing the new element
14296   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
14297   {
14298     free_position[x][y] =
14299       (random_placement_background_restricted ?
14300        Tile[x][y] == random_placement_background_element :
14301        Tile[x][y] != new_element);
14302
14303     if (free_position[x][y])
14304       num_free_positions++;
14305   }
14306
14307   // determine number of new elements to place there
14308   num_percentage = num_free_positions * random_placement_value / 100;
14309   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
14310                   num_percentage : random_placement_value);
14311
14312   // if less free positions than elements to place, fill all these positions
14313   if (num_free_positions < num_elements)
14314   {
14315     for (x = 0; x < lev_fieldx; x++)
14316       for (y = 0; y < lev_fieldy; y++)
14317         if (free_position[x][y])
14318           SetElement(x, y, new_element);
14319   }
14320   else
14321   {
14322     while (num_elements > 0)
14323     {
14324       x = GetSimpleRandom(lev_fieldx);
14325       y = GetSimpleRandom(lev_fieldy);
14326
14327       // don't place element at the same position twice
14328       if (free_position[x][y])
14329       {
14330         free_position[x][y] = FALSE;
14331         SetElement(x, y, new_element);
14332         num_elements--;
14333       }
14334     }
14335   }
14336
14337   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14338   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14339 }
14340
14341 static void WrapLevel(int dx, int dy)
14342 {
14343   int wrap_dx = lev_fieldx - dx;
14344   int wrap_dy = lev_fieldy - dy;
14345   int x, y;
14346
14347   for (x = 0; x < lev_fieldx; x++)
14348     for (y = 0; y < lev_fieldy; y++)
14349       TileBackup[x][y] = Tile[x][y];
14350
14351   for (x = 0; x < lev_fieldx; x++)
14352     for (y = 0; y < lev_fieldy; y++)
14353       Tile[x][y] =
14354         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
14355
14356   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14357   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
14358 }
14359
14360 static void DrawAreaElementHighlight(boolean highlighted,
14361                                      boolean highlighted_similar)
14362 {
14363   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14364
14365   if (!highlighted)
14366     return;
14367
14368   int x, y;
14369
14370   for (x = 0; x < ed_fieldx; x++)
14371   {
14372     for (y = 0; y < ed_fieldy; y++)
14373     {
14374       boolean highlight = FALSE;
14375       int lx = x + level_xpos;
14376       int ly = y + level_ypos;
14377
14378       if (!IN_LEV_FIELD(lx, ly))
14379         continue;
14380
14381       // check if element is the same
14382       if (Tile[lx][ly] == new_element1)
14383         highlight = TRUE;
14384
14385       // check if element is similar
14386       if (highlighted_similar &&
14387           strEqual(element_info[Tile[lx][ly]].class_name,
14388                    element_info[new_element1].class_name))
14389         highlight = TRUE;
14390
14391       // check if element is matching MM style wall
14392       if (IS_MM_WALL(Tile[lx][ly]) &&
14393           map_mm_wall_element(Tile[lx][ly]) == new_element1)
14394         highlight = TRUE;
14395
14396       if (!highlight)
14397         continue;
14398
14399       if (IS_MM_WALL(Tile[lx][ly]) && !highlighted_similar)
14400       {
14401         int i;
14402
14403         for (i = 0; i < 4; i++)
14404         {
14405           if (!(MM_WALL_BITS(Tile[lx][ly]) & (1 << i)))
14406             continue;
14407
14408           int xx = x * 2 + (i % 2);
14409           int yy = y * 2 + (i / 2);
14410           int sx = SX + xx * ed_tilesize / 2;
14411           int sy = SY + yy * ed_tilesize / 2;
14412           int from_sx = sx;
14413           int from_sy = sy;
14414           int to_sx = sx + ed_tilesize / 2 - 1;
14415           int to_sy = sy + ed_tilesize / 2 - 1;
14416
14417           DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14418           DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14419           DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14420           DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14421         }
14422       }
14423       else
14424       {
14425         int sx = SX + x * ed_tilesize;
14426         int sy = SY + y * ed_tilesize;
14427         int from_sx = sx;
14428         int from_sy = sy;
14429         int to_sx = sx + ed_tilesize - 1;
14430         int to_sy = sy + ed_tilesize - 1;
14431
14432         DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14433         DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14434         DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14435         DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14436       }
14437     }
14438   }
14439 }
14440
14441 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
14442 {
14443   char *template_filename_old = getLocalLevelTemplateFilename();
14444   char *template_filename_new =
14445     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
14446
14447   if (copyFile(template_filename_old, template_filename_new) != 0)
14448     Request("Cannot copy level template!", REQ_CONFIRM);
14449
14450   free(template_filename_new);
14451 }
14452
14453 static void HandleDrawingAreas(struct GadgetInfo *gi)
14454 {
14455   static boolean started_inside_drawing_area = FALSE;
14456   static int last_sx = -1;
14457   static int last_sy = -1;
14458   static int last_sx2 = -1;
14459   static int last_sy2 = -1;
14460   int id = gi->custom_id;
14461   int type_id = gi->custom_type_id;
14462   boolean button_press_event;
14463   boolean button_release_event;
14464   boolean inside_drawing_area = !gi->event.off_borders;
14465   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
14466   int actual_drawing_function;
14467   int button = gi->event.button;
14468   int new_element = BUTTON_ELEMENT(button);
14469   int sx = gi->event.x, sy = gi->event.y;
14470   int min_sx = 0, min_sy = 0;
14471   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
14472   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
14473   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
14474   int sx2 = gi->event.mx / mini_item_xsize;
14475   int sy2 = gi->event.my / mini_item_ysize;
14476   int dx = sx2 % 2;
14477   int dy = sy2 % 2;
14478   int lx = 0, ly = 0;
14479   int x, y;
14480
14481   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
14482   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
14483
14484   // make sure to stay inside drawing area boundaries
14485   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
14486   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
14487
14488   if (draw_level)
14489   {
14490     int min_lx = 0, min_ly = 0;
14491     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
14492
14493     // get positions inside level field
14494     lx = sx + level_xpos;
14495     ly = sy + level_ypos;
14496
14497     if (!IN_LEV_FIELD(lx, ly))
14498       inside_drawing_area = FALSE;
14499
14500     // make sure to stay inside level field boundaries
14501     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
14502     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
14503
14504     // correct drawing area positions accordingly
14505     sx = lx - level_xpos;
14506     sy = ly - level_ypos;
14507   }
14508
14509   // also correct MM wall-sized (double) drawing area positions accordingly
14510   if (sx2 / 2 < sx || sx2 / 2 > sx)
14511   {
14512     dx = (sx2 / 2 < sx ? 0 : 1);
14513     sx2 = sx * 2 + dx;
14514   }
14515   if (sy2 / 2 < sy || sy2 / 2 > sy)
14516   {
14517     dy = (sy2 / 2 < sy ? 0 : 1);
14518     sy2 = sy * 2 + dy;
14519   }
14520
14521   if (!button_press_event && !button_release_event)
14522   {
14523     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
14524     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
14525                              isHiresTileElement(old_element) &&
14526                              isHiresDrawElement(new_element));
14527
14528     // prevent handling events for every pixel position when moving mouse
14529     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
14530         (sx2 == last_sx2 && sy2 == last_sy2))
14531       return;
14532   }
14533
14534   last_sx = sx;
14535   last_sy = sy;
14536   last_sx2 = sx2;
14537   last_sy2 = sy2;
14538
14539   if (button_press_event)
14540     started_inside_drawing_area = inside_drawing_area;
14541
14542   if (!started_inside_drawing_area)
14543     return;
14544
14545   if (!IS_VALID_BUTTON(button))
14546     return;
14547
14548   // handle info callback for each invocation of action callback
14549   gi->callback_info(gi);
14550
14551   // automatically switch to 'single item' drawing mode, if needed
14552   actual_drawing_function =
14553     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
14554      drawing_function : GADGET_ID_SINGLE_ITEMS);
14555
14556   // clicking into drawing area with pressed Control key picks element
14557   if (GetKeyModState() & KMOD_Control)
14558   {
14559     last_drawing_function = drawing_function;
14560     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
14561   }
14562
14563   if (GetKeyModState() & KMOD_Shift)
14564   {
14565     if (button_press_event || button_release_event)
14566       ResetIntelliDraw();
14567   }
14568
14569   SetDrawModeHiRes(-1);         // reset to normal draw mode
14570
14571   switch (actual_drawing_function)
14572   {
14573     case GADGET_ID_SINGLE_ITEMS:
14574       if (draw_level)
14575       {
14576         if (button_release_event)
14577         {
14578           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14579
14580           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
14581               !inside_drawing_area)
14582             DeleteBrushFromCursor();
14583
14584           break;
14585         }
14586
14587         if (draw_with_brush)
14588         {
14589           CopyBrushToLevel(sx, sy, button);
14590         }
14591         else
14592         {
14593           SetDrawModeHiRes(new_element);
14594
14595           if (IS_PLAYER_ELEMENT(new_element) || IS_MM_MCDUFFIN(new_element))
14596           {
14597             // remove player at old position
14598             for (y = 0; y < lev_fieldy; y++)
14599             {
14600               for (x = 0; x < lev_fieldx; x++)
14601               {
14602                 int old_element = Tile[x][y];
14603
14604                 if (IS_PLAYER_ELEMENT(old_element) &&
14605                     IS_PLAYER_ELEMENT(new_element))
14606                 {
14607                   int replaced_with_element =
14608                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
14609                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
14610
14611                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
14612                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
14613
14614                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
14615                      old_element == EL_PLAYER_1 ? EL_EMPTY :
14616
14617                      new_element >= EL_PLAYER_1 &&
14618                      new_element <= EL_PLAYER_4 &&
14619                      new_element == old_element ? EL_EMPTY :
14620
14621                      old_element);
14622
14623                   SetElement(x, y, replaced_with_element);
14624                 }
14625                 else if (IS_MM_MCDUFFIN(old_element) &&
14626                          IS_MM_MCDUFFIN(new_element))
14627                 {
14628                   // remove McDuffin at old position
14629                   SetElement(x, y, EL_EMPTY);
14630                 }
14631               }
14632             }
14633           }
14634
14635           SetElementButton(lx, ly, dx, dy, new_element, button);
14636         }
14637       }
14638       else if (!button_release_event)
14639       {
14640         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14641
14642         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
14643           DrawMiniGraphicExt(drawto,
14644                              gi->x + sx * MINI_TILEX,
14645                              gi->y + sy * MINI_TILEY,
14646                              el2edimg(new_element));
14647         else
14648           DrawFixedGraphicExt(drawto,
14649                               gi->x + sx * TILEX,
14650                               gi->y + sy * TILEY,
14651                               el2edimg(new_element), 0);
14652
14653         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14654           new_element = GFX_ELEMENT(new_element);
14655
14656         drawingarea_info[type_id].value[pos] = new_element;
14657
14658         CopyElementPropertiesToGame(properties_element);
14659
14660         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14661         {
14662           UpdateCustomElementGraphicGadgets();
14663
14664           FrameCounter = 0;     // restart animation frame counter
14665         }
14666       }
14667       break;
14668
14669     case GADGET_ID_CONNECTED_ITEMS:
14670       {
14671         static int last_sx = -1;
14672         static int last_sy = -1;
14673
14674         if (button_release_event)
14675           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14676
14677         SetDrawModeHiRes(new_element);
14678
14679         if (getDrawModeHiRes())
14680         {
14681           sx = sx2;
14682           sy = sy2;
14683         }
14684
14685         if (!button_press_event)
14686           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
14687
14688         last_sx = sx;
14689         last_sy = sy;
14690       }
14691       break;
14692
14693     case GADGET_ID_LINE:
14694     case GADGET_ID_ARC:
14695     case GADGET_ID_RECTANGLE:
14696     case GADGET_ID_FILLED_BOX:
14697       SetDrawModeHiRes(new_element);
14698
14699       if (getDrawModeHiRes())
14700       {
14701         sx = sx2;
14702         sy = sy2;
14703       }
14704       // FALLTHROUGH
14705     case GADGET_ID_GRAB_BRUSH:
14706     case GADGET_ID_TEXT:
14707       {
14708         static int last_sx = -1;
14709         static int last_sy = -1;
14710         static int start_sx = -1;
14711         static int start_sy = -1;
14712         void (*draw_func)(int, int, int, int, int, boolean);
14713
14714         if (drawing_function == GADGET_ID_LINE)
14715           draw_func = DrawLine;
14716         else if (drawing_function == GADGET_ID_ARC)
14717           draw_func = DrawArc;
14718         else if (drawing_function == GADGET_ID_RECTANGLE)
14719           draw_func = DrawBox;
14720         else if (drawing_function == GADGET_ID_FILLED_BOX)
14721           draw_func = DrawFilledBox;
14722         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
14723           draw_func = SelectArea;
14724         else // (drawing_function == GADGET_ID_TEXT)
14725           draw_func = SetTextCursor;
14726
14727         if (button_press_event)
14728         {
14729           draw_func(sx, sy, sx, sy, new_element, FALSE);
14730           start_sx = last_sx = sx;
14731           start_sy = last_sy = sy;
14732
14733           if (drawing_function == GADGET_ID_TEXT)
14734             DrawLevelText(0, 0, 0, TEXT_END);
14735         }
14736         else if (button_release_event)
14737         {
14738           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
14739           if (drawing_function == GADGET_ID_GRAB_BRUSH)
14740           {
14741             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
14742             CopyBrushToCursor(sx, sy);
14743             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
14744                           MB_LEFTBUTTON);
14745             draw_with_brush = TRUE;
14746           }
14747           else if (drawing_function == GADGET_ID_TEXT)
14748             DrawLevelText(sx, sy, 0, TEXT_INIT);
14749           else
14750             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14751         }
14752         else if (last_sx != sx || last_sy != sy)
14753         {
14754           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
14755           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
14756             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
14757           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
14758           last_sx = sx;
14759           last_sy = sy;
14760         }
14761       }
14762       break;
14763
14764     case GADGET_ID_FLOOD_FILL:
14765       if (button_press_event && Tile[lx][ly] != new_element)
14766       {
14767         if (IS_MM_WALL_EDITOR(new_element))
14768           FloodFillWall_MM(sx2, sy2, new_element);
14769         else
14770           FloodFill(lx, ly, new_element);
14771
14772         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14773         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14774       }
14775       break;
14776
14777     case GADGET_ID_PICK_ELEMENT:
14778       if (button_release_event)
14779         ClickOnGadget(level_editor_gadget[last_drawing_function],
14780                       MB_LEFTBUTTON);
14781       else if (draw_level)
14782         PickDrawingElement(button, Tile[lx][ly]);
14783       else
14784       {
14785         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14786
14787         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
14788       }
14789
14790     default:
14791       break;
14792   }
14793
14794   // do not mark level as modified for certain non-level-changing gadgets
14795   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
14796        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
14797       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
14798       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14799     return;
14800
14801   level.changed = TRUE;
14802 }
14803
14804 static void HandleCounterButtons(struct GadgetInfo *gi)
14805 {
14806   int gadget_id = gi->custom_id;
14807   int counter_id = gi->custom_type_id;
14808   int button = gi->event.button;
14809   int *counter_value = counterbutton_info[counter_id].value;
14810   int step = BUTTON_STEPSIZE(button) *
14811     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
14812
14813   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14814   {
14815     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
14816     boolean released = (gi->event.type == GD_EVENT_RELEASED);
14817     boolean level_changed = LevelChanged();
14818
14819     if ((level_changed && pressed) || (!level_changed && released))
14820       return;
14821
14822     if (level_changed && !Request("Level has changed! Discard changes?",
14823                                   REQ_ASK))
14824     {
14825       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14826         ModifyEditorCounterValue(counter_id, *counter_value);
14827
14828       return;
14829     }
14830   }
14831
14832   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14833     *counter_value = gi->textinput.number_value;
14834   else
14835     ModifyEditorCounterValue(counter_id, *counter_value + step);
14836
14837   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14838   {
14839     int last_game_engine_type = level.game_engine_type;
14840
14841     LoadLevel(level_nr);
14842     LoadScore(level_nr);
14843
14844     SaveLevelSetup_SeriesInfo();
14845
14846     TapeErase();
14847
14848     ResetUndoBuffer();
14849     DrawEditModeWindow();
14850
14851     if (level.game_engine_type != last_game_engine_type)
14852     {
14853       // update element selection list
14854       ReinitializeElementList();
14855       ModifyEditorElementList();
14856     }
14857
14858     return;
14859   }
14860
14861   switch (counter_id)
14862   {
14863     case ED_COUNTER_ID_YAMYAM_CONTENT:
14864       DrawYamYamContentAreas();
14865       break;
14866
14867     case ED_COUNTER_ID_BALL_CONTENT:
14868       DrawMagicBallContentAreas();
14869       break;
14870
14871     case ED_COUNTER_ID_ANDROID_CONTENT:
14872       DrawAndroidElementArea();
14873       break;
14874
14875     case ED_COUNTER_ID_GROUP_CONTENT:
14876       DrawGroupElementArea();
14877       CopyGroupElementPropertiesToGame(properties_element);
14878       break;
14879
14880     case ED_COUNTER_ID_INVENTORY_SIZE:
14881       DrawPlayerInitialInventoryArea(properties_element);
14882       break;
14883
14884     case ED_COUNTER_ID_MM_BALL_CONTENT:
14885       DrawMMBallContentArea();
14886       break;
14887
14888     case ED_COUNTER_ID_ENVELOPE_XSIZE:
14889     case ED_COUNTER_ID_ENVELOPE_YSIZE:
14890       DrawEnvelopeTextArea(-1);
14891       break;
14892
14893     case ED_COUNTER_ID_LEVEL_XSIZE:
14894     case ED_COUNTER_ID_LEVEL_YSIZE:
14895       lev_fieldx = level.fieldx;
14896       lev_fieldy = level.fieldy;
14897
14898       // check if resizing of level results in change of border border
14899       SetBorderElement();
14900
14901       break;
14902
14903     default:
14904       break;
14905   }
14906
14907   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
14908        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
14909       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
14910        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
14911     CopyElementPropertiesToGame(properties_element);
14912
14913   // do not mark level as modified for certain non-level-changing gadgets
14914   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
14915        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
14916       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
14917        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
14918     return;
14919
14920   level.changed = TRUE;
14921 }
14922
14923 static void HandleTextInputGadgets(struct GadgetInfo *gi)
14924 {
14925   int type_id = gi->custom_type_id;
14926
14927   strcpy(textinput_info[type_id].value, gi->textinput.value);
14928
14929   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
14930   {
14931     CopyElementPropertiesToGame(properties_element);
14932
14933     ModifyEditorElementList();  // update changed button info text
14934   }
14935
14936   // do not mark level as modified for certain non-level-changing gadgets
14937   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
14938       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
14939     return;
14940
14941   level.changed = TRUE;
14942 }
14943
14944 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
14945 {
14946   int type_id = gi->custom_type_id;
14947
14948   strncpy(textarea_info[type_id].value, gi->textarea.value,
14949           MAX_ENVELOPE_TEXT_LEN);
14950   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
14951
14952   level.changed = TRUE;
14953 }
14954
14955 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
14956 {
14957   int type_id = gi->custom_type_id;
14958   int value_old = *selectbox_info[type_id].value;
14959   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
14960
14961   *selectbox_info[type_id].value = value_new;
14962
14963   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
14964   {
14965     DrawLevelConfigWindow();
14966   }
14967   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
14968   {
14969     element_info[properties_element].current_change_page = gi->selectbox.index;
14970
14971     DrawPropertiesWindow();
14972   }
14973   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
14974             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
14975            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
14976             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
14977            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
14978   {
14979     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
14980     {
14981       // when changing action type, also check action mode and action arg
14982       if (value_old != value_new)
14983         setSelectboxSpecialActionVariablesIfNeeded();
14984
14985       DrawPropertiesChange();
14986     }
14987
14988     CopyElementPropertiesToGame(properties_element);
14989   }
14990   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
14991   {
14992     // show or hide "engine" tabulator depending on game engine type
14993     DrawLevelConfigWindow();
14994
14995     // update element selection list depending on game engine type
14996     ReinitializeElementList();
14997     ModifyEditorElementList();
14998   }
14999   else if (type_id == ED_SELECTBOX_ID_BD_SCHEDULING_TYPE)
15000   {
15001     // update BD cycle delay counter gadgets depending on BD scheduling type
15002     DrawLevelConfigWindow();
15003   }
15004
15005   // do not mark level as modified for certain non-level-changing gadgets
15006   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
15007       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
15008     return;
15009
15010   level.changed = TRUE;
15011 }
15012
15013 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
15014 {
15015   int type_id = gi->custom_type_id;
15016   int i;
15017
15018   if (type_id >= ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST &&
15019       type_id <= ED_TAB_BUTTON_ID_LEVELCONFIG_LAST)
15020   {
15021     edit_mode_levelconfig = gi->custom_type_id;
15022
15023     DrawLevelConfigWindow();
15024   }
15025   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
15026            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
15027   {
15028     edit_mode_properties = gi->custom_type_id;
15029
15030     DrawPropertiesWindow();
15031   }
15032   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
15033            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
15034   {
15035     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
15036
15037     // backup original "level.field" (needed to track playfield changes)
15038     CopyPlayfield(level.field, TileBackup);
15039
15040     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
15041     CopyPlayfield(Tile, level.field);
15042
15043     if (new_template ||
15044         Request("Save this template and kill the old?", REQ_ASK))
15045       SaveLevelTemplate();
15046
15047     if (new_template)
15048       Request("Template saved!", REQ_CONFIRM);
15049
15050     // restore original "level.field" (needed to track playfield changes)
15051     CopyPlayfield(TileBackup, level.field);
15052   }
15053   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
15054   {
15055     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
15056
15057     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
15058         leveldir_current->readonly)
15059     {
15060       Request("This level set is read-only!", REQ_CONFIRM);
15061
15062       return;
15063     }
15064
15065     if (strEqual(levelset_name, ""))
15066     {
15067       Request("Please enter level set title!", REQ_CONFIRM);
15068
15069       return;
15070     }
15071
15072     if (strEqual(levelset_author, ""))
15073     {
15074       Request("Please enter level set author!", REQ_CONFIRM);
15075
15076       return;
15077     }
15078
15079     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
15080     {
15081       if (UpdateUserLevelSet(levelset_subdir,
15082                              levelset_name,
15083                              levelset_author,
15084                              levelset_num_levels))
15085       {
15086         Request("Level set updated!", REQ_CONFIRM);
15087       }
15088       else
15089       {
15090         Request("Updating level set failed!", REQ_CONFIRM);
15091       }
15092     }
15093     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
15094     {
15095       if (level.changed && !Request("Level has changed! Discard changes?",
15096                                      REQ_ASK))
15097         return;
15098
15099       if (CreateUserLevelSet(levelset_subdir,
15100                              levelset_name,
15101                              levelset_author,
15102                              levelset_num_levels,
15103                              levelset_use_levelset_artwork))
15104       {
15105         if (levelset_copy_level_template)
15106           CopyLevelTemplateToUserLevelSet(levelset_subdir);
15107
15108         Request("New level set created!", REQ_CONFIRM);
15109
15110         AddUserLevelSetToLevelInfo(levelset_subdir);
15111         ChangeEditorToLevelSet(levelset_subdir);
15112       }
15113       else
15114       {
15115         Request("Creating new level set failed!", REQ_CONFIRM);
15116       }
15117     }
15118   }
15119   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
15120            custom_element.num_change_pages < MAX_CHANGE_PAGES)
15121   {
15122     struct ElementInfo *ei = &element_info[properties_element];
15123
15124     // when modifying custom element, ask for copying level template
15125     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15126       return;
15127
15128     setElementChangePages(ei, ei->num_change_pages + 1);
15129
15130     // set new change page to be new current change page
15131     ei->current_change_page = ei->num_change_pages - 1;
15132     ei->change = &ei->change_page[ei->current_change_page];
15133
15134     setElementChangeInfoToDefaults(ei->change);
15135
15136     DrawPropertiesWindow();
15137
15138     level.changed = TRUE;
15139   }
15140   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
15141            custom_element.num_change_pages > MIN_CHANGE_PAGES)
15142   {
15143     struct ElementInfo *ei = &element_info[properties_element];
15144
15145     // when modifying custom element, ask for copying level template
15146     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15147       return;
15148
15149     // copy all change pages after change page to be deleted
15150     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
15151       ei->change_page[i] = ei->change_page[i + 1];
15152
15153     setElementChangePages(ei, ei->num_change_pages - 1);
15154
15155     DrawPropertiesWindow();
15156
15157     level.changed = TRUE;
15158   }
15159 }
15160
15161 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
15162 {
15163   int type_id = gi->custom_type_id;
15164
15165   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
15166       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
15167   {
15168     struct ElementInfo *ei = &element_info[properties_element];
15169     int step = BUTTON_STEPSIZE(gi->event.button);
15170
15171     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
15172     ei->current_change_page += step;
15173
15174     if (ei->current_change_page < 0)
15175       ei->current_change_page = 0;
15176     else if (ei->current_change_page >= ei->num_change_pages)
15177       ei->current_change_page = ei->num_change_pages - 1;
15178
15179     DrawPropertiesWindow();
15180   }
15181   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
15182            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15183   {
15184     struct ElementInfo *ei = &element_info[properties_element];
15185     int current_change_page = ei->current_change_page;
15186
15187     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
15188     {
15189       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
15190         ei->change_page[current_change_page];
15191     }
15192     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15193     {
15194       // when modifying custom element, ask for copying level template
15195       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15196         return;
15197
15198       ei->change_page[current_change_page] =
15199         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
15200
15201       level.changed = TRUE;
15202     }
15203
15204     DrawPropertiesWindow();
15205   }
15206 }
15207
15208 static void HandleRadiobuttons(struct GadgetInfo *gi)
15209 {
15210   int type_id = gi->custom_type_id;
15211
15212   *radiobutton_info[type_id].value =
15213     radiobutton_info[type_id].checked_value;
15214
15215   // do not mark level as modified for certain non-level-changing gadgets
15216   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
15217       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
15218     return;
15219
15220   level.changed = TRUE;
15221 }
15222
15223 static void HandleCheckbuttons(struct GadgetInfo *gi)
15224 {
15225   int type_id = gi->custom_type_id;
15226
15227   *checkbutton_info[type_id].value ^= TRUE;
15228
15229   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
15230       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
15231       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
15232       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
15233          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
15234         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
15235          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
15236        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
15237   {
15238     CopyElementPropertiesToGame(properties_element);
15239   }
15240
15241   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
15242   {
15243     UpdateCustomElementGraphicGadgets();
15244   }
15245   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
15246            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
15247   {
15248     boolean template_related_changes_found = FALSE;
15249     int i;
15250
15251     // check if any custom, group or empty elements have been changed
15252     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
15253       if ((IS_CUSTOM_ELEMENT(i) ||
15254            IS_GROUP_ELEMENT(i) ||
15255            IS_EMPTY_ELEMENT(i)) &&
15256           element_info[i].modified_settings)
15257         template_related_changes_found = TRUE;
15258
15259     if (level.use_custom_template &&
15260         !fileExists(getGlobalLevelTemplateFilename()))
15261     {
15262       Request("No level template found!", REQ_CONFIRM);
15263
15264       level.use_custom_template = FALSE;
15265
15266       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15267
15268       return;
15269     }
15270
15271     if (level.use_custom_template &&
15272         template_related_changes_found &&
15273         !Request("Discard changes and use level template?", REQ_ASK))
15274     {
15275       level.use_custom_template = FALSE;
15276
15277       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15278
15279       return;
15280     }
15281
15282     if (!level.use_custom_template &&
15283         Request("Copy settings from level template?", REQ_ASK))
15284     {
15285       return;
15286     }
15287
15288     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
15289
15290     DrawEditModeWindow();
15291   }
15292   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
15293   {
15294     if (setup.editor.use_template_for_new_levels &&
15295         !fileExists(getGlobalLevelTemplateFilename()))
15296     {
15297       Request("No level template found!", REQ_CONFIRM);
15298
15299       return;
15300     }
15301
15302     if (setup.editor.use_template_for_new_levels &&
15303         level.changed &&
15304         !Request("Discard level and load template?", REQ_ASK))
15305     {
15306       return;
15307     }
15308
15309     if (!setup.editor.use_template_for_new_levels &&
15310         level.changed &&
15311         !Request("Discard level and use empty level?", REQ_ASK))
15312     {
15313       return;
15314     }
15315
15316     LoadLevel(level_nr);
15317     LoadScore(level_nr);
15318
15319     TapeErase();
15320
15321     ResetUndoBuffer();
15322     DrawEditModeWindow();
15323   }
15324   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
15325   {
15326     SetAutomaticNumberOfGemsNeeded();
15327   }
15328
15329   // do not mark level as modified for certain non-level-changing gadgets
15330   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
15331        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
15332       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
15333        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
15334        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
15335       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
15336     return;
15337
15338   level.changed = TRUE;
15339 }
15340
15341 static void HandleControlButtons(struct GadgetInfo *gi)
15342 {
15343   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
15344   static int last_edit_mode = ED_MODE_DRAWING;
15345   static int last_custom_copy_mode = -1;
15346   static int last_button = 0;
15347   int id = gi->custom_id;
15348   int button = gi->event.button;
15349   int step = BUTTON_STEPSIZE(button);
15350   int new_element = BUTTON_ELEMENT(button);
15351   int last_properties_element = properties_element;
15352   int x, y;
15353
15354   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
15355     DrawLevelText(0, 0, 0, TEXT_END);
15356
15357   if (id < ED_NUM_CTRL1_BUTTONS &&
15358       id != GADGET_ID_SINGLE_ITEMS &&
15359       id != GADGET_ID_PICK_ELEMENT &&
15360       edit_mode != ED_MODE_DRAWING &&
15361       drawing_function != GADGET_ID_PICK_ELEMENT &&
15362       !(GetKeyModState() & KMOD_Control))
15363     ChangeEditModeWindow(ED_MODE_DRAWING);
15364
15365   // element copy mode active, but no element button pressed => deactivate
15366   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
15367     last_custom_copy_mode = -1;
15368
15369   // when showing palette on element buttons, change element of button used
15370   if (editor.palette.show_on_element_buttons &&
15371       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
15372   {
15373     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
15374
15375     id = GADGET_ID_PALETTE;
15376   }
15377
15378   switch (id)
15379   {
15380     case GADGET_ID_SCROLL_LEFT:
15381       if (level_xpos >= 0)
15382       {
15383         if (lev_fieldx < ed_fieldx - 2)
15384           break;
15385
15386         level_xpos -= step;
15387         if (level_xpos < -1)
15388           level_xpos = -1;
15389         if (button == 1)
15390           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
15391         else
15392           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15393
15394         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15395                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15396       }
15397       break;
15398
15399     case GADGET_ID_SCROLL_RIGHT:
15400       if (level_xpos <= lev_fieldx - ed_fieldx)
15401       {
15402         if (lev_fieldx < ed_fieldx - 2)
15403           break;
15404
15405         level_xpos += step;
15406         if (level_xpos > lev_fieldx - ed_fieldx + 1)
15407           level_xpos = lev_fieldx - ed_fieldx + 1;
15408         if (button == 1)
15409           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
15410         else
15411           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15412
15413         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15414                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15415       }
15416       break;
15417
15418     case GADGET_ID_SCROLL_UP:
15419       if (level_ypos >= 0)
15420       {
15421         if (lev_fieldy < ed_fieldy - 2)
15422           break;
15423
15424         level_ypos -= step;
15425         if (level_ypos < -1)
15426           level_ypos = -1;
15427         if (button == 1)
15428           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
15429         else
15430           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15431
15432         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15433                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15434       }
15435       break;
15436
15437     case GADGET_ID_SCROLL_DOWN:
15438       if (level_ypos <= lev_fieldy - ed_fieldy)
15439       {
15440         if (lev_fieldy < ed_fieldy - 2)
15441           break;
15442
15443         level_ypos += step;
15444         if (level_ypos > lev_fieldy - ed_fieldy + 1)
15445           level_ypos = lev_fieldy - ed_fieldy + 1;
15446         if (button == 1)
15447           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
15448         else
15449           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15450
15451         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15452                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15453       }
15454       break;
15455
15456     case GADGET_ID_SCROLL_HORIZONTAL:
15457       level_xpos = gi->event.item_position - 1;
15458
15459       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15460       BackToFront();
15461
15462       break;
15463
15464     case GADGET_ID_SCROLL_VERTICAL:
15465       level_ypos = gi->event.item_position - 1;
15466
15467       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15468       BackToFront();
15469
15470       break;
15471
15472     case GADGET_ID_SCROLL_LIST_UP:
15473     case GADGET_ID_SCROLL_LIST_DOWN:
15474     case GADGET_ID_SCROLL_LIST_VERTICAL:
15475       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
15476         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
15477       else
15478       {
15479         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
15480         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15481
15482         if (element_shift < 0)
15483           element_shift = 0;
15484         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15485           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15486
15487         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15488                      GDI_SCROLLBAR_ITEM_POSITION,
15489                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15490       }
15491
15492       ModifyEditorElementList();
15493
15494       break;
15495
15496     case GADGET_ID_PROPERTIES:
15497       // always switch off element properties when they are already displayed
15498       last_properties_element = new_element;
15499     case GADGET_ID_ELEMENT_LEFT:
15500     case GADGET_ID_ELEMENT_MIDDLE:
15501     case GADGET_ID_ELEMENT_RIGHT:
15502       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
15503                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
15504                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
15505                             new_element);
15506
15507       if (edit_mode != ED_MODE_PROPERTIES)
15508       {
15509         last_edit_mode = edit_mode;
15510
15511         ChangeEditModeWindow(ED_MODE_PROPERTIES);
15512
15513         last_level_drawing_function = drawing_function;
15514         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
15515                       MB_LEFTBUTTON);
15516       }
15517       else if (properties_element != last_properties_element)
15518       {
15519         DrawEditModeWindow();
15520       }
15521       else
15522       {
15523         ChangeEditModeWindow(ED_MODE_DRAWING);
15524
15525         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
15526                       MB_LEFTBUTTON);
15527       }
15528       break;
15529
15530     case GADGET_ID_PALETTE:
15531       if (edit_mode != ED_MODE_PALETTE)
15532       {
15533         last_edit_mode = edit_mode;
15534
15535         ChangeEditModeWindow(ED_MODE_PALETTE);
15536       }
15537       else
15538       {
15539         ChangeEditModeWindow(last_edit_mode);
15540       }
15541       break;
15542
15543     case GADGET_ID_WRAP_LEFT:
15544       WrapLevel(-step, 0);
15545       break;
15546
15547     case GADGET_ID_WRAP_RIGHT:
15548       WrapLevel(step, 0);
15549       break;
15550
15551     case GADGET_ID_WRAP_UP:
15552       WrapLevel(0, -step);
15553       break;
15554
15555     case GADGET_ID_WRAP_DOWN:
15556       WrapLevel(0, step);
15557       break;
15558
15559     case GADGET_ID_SINGLE_ITEMS:
15560     case GADGET_ID_CONNECTED_ITEMS:
15561     case GADGET_ID_LINE:
15562     case GADGET_ID_ARC:
15563     case GADGET_ID_TEXT:
15564     case GADGET_ID_RECTANGLE:
15565     case GADGET_ID_FILLED_BOX:
15566     case GADGET_ID_FLOOD_FILL:
15567     case GADGET_ID_GRAB_BRUSH:
15568     case GADGET_ID_PICK_ELEMENT:
15569       if (drawing_function != GADGET_ID_PICK_ELEMENT)
15570         last_drawing_function = drawing_function;
15571       drawing_function = id;
15572       draw_with_brush = FALSE;
15573       break;
15574
15575     case GADGET_ID_RANDOM_PLACEMENT:
15576       RandomPlacement(new_element);
15577       break;
15578
15579     case GADGET_ID_ZOOM:
15580       // zoom level editor tile size in or out (or reset to default size)
15581       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
15582                      button == 2 ? ed_tilesize_default :
15583                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
15584
15585       // when using touch device, cycle through all zoom tilesizes
15586       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
15587         ed_tilesize = MICRO_TILESIZE;
15588
15589       // limit zoom level by upper and lower bound
15590       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
15591
15592       InitZoomLevelSettings(ed_tilesize);
15593
15594       if (edit_mode == ED_MODE_DRAWING)
15595       {
15596         DrawDrawingWindow();
15597
15598         // redraw zoom gadget info text
15599         PrintEditorGadgetInfoText(level_editor_gadget[id]);
15600       }
15601
15602       // save current editor zoom tilesize
15603       SaveSetup_AutoSetup();
15604
15605       break;
15606
15607     case GADGET_ID_CUSTOM_COPY_FROM:
15608     case GADGET_ID_CUSTOM_COPY_TO:
15609     case GADGET_ID_CUSTOM_EXCHANGE:
15610       last_custom_copy_mode = id;
15611       last_drawing_function = drawing_function;
15612       break;
15613
15614     case GADGET_ID_CUSTOM_COPY:
15615       CopyCustomElement(properties_element, -1, id);
15616       break;
15617
15618     case GADGET_ID_CUSTOM_PASTE:
15619       CopyCustomElement(-1, properties_element, id);
15620       break;
15621
15622     case GADGET_ID_UNDO:
15623       if (button < 0)   // keep button value (even if modifier keys are pressed)
15624         button = -button;
15625       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
15626         button = 3;
15627
15628       if (button == 1 && undo_buffer_steps == 0)
15629       {
15630         Request("Undo buffer empty!", REQ_CONFIRM);
15631
15632         break;
15633       }
15634       else if (button == 2)
15635       {
15636         break;
15637       }
15638       else if (button == 3 && redo_buffer_steps == 0)
15639       {
15640         Request("Redo buffer empty!", REQ_CONFIRM);
15641
15642         break;
15643       }
15644
15645       if (edit_mode != ED_MODE_DRAWING)
15646         ChangeEditModeWindow(ED_MODE_DRAWING);
15647
15648       if (button == 1)
15649       {
15650         // undo
15651
15652         undo_buffer_position =
15653           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
15654
15655         undo_buffer_steps--;
15656         redo_buffer_steps++;
15657       }
15658       else
15659       {
15660         // redo
15661
15662         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
15663
15664         undo_buffer_steps++;
15665         redo_buffer_steps--;
15666       }
15667
15668       for (x = 0; x < lev_fieldx; x++)
15669         for (y = 0; y < lev_fieldy; y++)
15670           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
15671
15672       // check if undo operation forces change of border style
15673       CheckLevelBorderElement(FALSE);
15674
15675       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15676
15677       break;
15678
15679     case GADGET_ID_CONF:
15680       if (edit_mode != ED_MODE_LEVELCONFIG)
15681       {
15682         last_edit_mode = edit_mode;
15683
15684         ChangeEditModeWindow(ED_MODE_LEVELCONFIG);
15685       }
15686       else
15687       {
15688         ChangeEditModeWindow(ED_MODE_DRAWING);
15689       }
15690       break;
15691
15692     case GADGET_ID_CLEAR:
15693       if (edit_mode != ED_MODE_DRAWING)
15694         ChangeEditModeWindow(ED_MODE_DRAWING);
15695
15696       for (x = 0; x < MAX_LEV_FIELDX; x++)
15697         for (y = 0; y < MAX_LEV_FIELDY; y++)
15698           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
15699
15700       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
15701
15702       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15703       break;
15704
15705     case GADGET_ID_SAVE:
15706     {
15707       // saving read-only levels into personal level set modifies global vars
15708       // "leveldir_current" and "level_nr"; restore them after saving level
15709       LevelDirTree *leveldir_former = leveldir_current;
15710       int level_nr_former = level_nr;
15711       char *level_filename;
15712       boolean new_level;
15713
15714       if (leveldir_current->readonly &&
15715           !PrepareSavingIntoPersonalLevelSet())
15716         break;
15717
15718       level_filename = getDefaultLevelFilename(level_nr);
15719       new_level = !fileExists(level_filename);
15720
15721       if (new_level ||
15722           Request("Save this level and kill the old?", REQ_ASK))
15723       {
15724         if (leveldir_former->readonly)
15725           ModifyLevelConfigForSavingIntoPersonalLevelSet(leveldir_former->name);
15726
15727         SetAutomaticNumberOfGemsNeeded();
15728
15729         CopyPlayfield(Tile, level.field);
15730         SaveLevel(level_nr);
15731
15732         level.changed = FALSE;
15733
15734         if (new_level)
15735         {
15736           char level_saved_msg[64];
15737
15738           if (leveldir_former->readonly)
15739             sprintf(level_saved_msg,
15740                     "Level saved as level %d into personal level set!",
15741                     level_nr);
15742           else
15743             strcpy(level_saved_msg, "Level saved!");
15744
15745           Request(level_saved_msg, REQ_CONFIRM);
15746         }
15747       }
15748
15749       // "cd" back to copied-from levelset (in case of saved read-only level)
15750       leveldir_current = leveldir_former;
15751       level_nr = level_nr_former;
15752
15753       break;
15754     }
15755
15756     case GADGET_ID_TEST:
15757       if (LevelChanged())
15758         level.game_version = GAME_VERSION_ACTUAL;
15759
15760       CopyPlayfield(level.field, TileBackup);
15761       CopyPlayfield(Tile, level.field);
15762
15763       CopyNativeLevel_RND_to_Native(&level);
15764
15765       UnmapLevelEditorGadgets();
15766       UndrawSpecialEditorDoor();
15767
15768       CloseDoor(DOOR_CLOSE_ALL);
15769
15770       // needed before playing if editor playfield area has different size
15771       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
15772
15773       // redraw_mask = REDRAW_ALL;
15774
15775       level_editor_test_game = TRUE;
15776
15777       StartGameActions(FALSE, setup.autorecord, level.random_seed);
15778
15779       break;
15780
15781     case GADGET_ID_EXIT:
15782       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
15783       break;
15784
15785     default:
15786       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
15787           id <= GADGET_ID_ELEMENTLIST_LAST)
15788       {
15789         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
15790
15791         new_element = editor_elements[element_position + element_shift];
15792
15793         if (IS_EDITOR_CASCADE(new_element))
15794         {
15795           int i;
15796
15797           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
15798           {
15799             int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
15800             boolean *cascade_value = editor_elements_info[i].setup_cascade_value;
15801
15802             if (*cascade_element == new_element)
15803             {
15804               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
15805               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
15806
15807               // update element selection list
15808               ReinitializeElementList();
15809               ModifyEditorElementList();
15810
15811               // update cascading gadget info text
15812               PrintEditorGadgetInfoText(level_editor_gadget[id]);
15813
15814               // save current editor cascading state
15815               SaveSetup_EditorCascade();
15816
15817               break;
15818             }
15819           }
15820
15821           break;
15822         }
15823
15824         if (last_custom_copy_mode != -1)
15825         {
15826           if (CopyCustomElement(properties_element, new_element,
15827                                 last_custom_copy_mode))
15828           {
15829             ClickOnGadget(level_editor_gadget[last_drawing_function],
15830                           MB_LEFTBUTTON);
15831
15832             last_custom_copy_mode = -1;
15833           }
15834
15835           break;
15836         }
15837
15838         // change element of button used to show palette
15839         if (editor.palette.show_on_element_buttons)
15840           button = last_button;
15841
15842         PickDrawingElement(button, new_element);
15843
15844         if (!stick_element_properties_window &&
15845             drawing_function != GADGET_ID_PICK_ELEMENT &&
15846             !(GetKeyModState() & KMOD_Control))
15847         {
15848           properties_element = new_element;
15849           if (edit_mode == ED_MODE_PROPERTIES)
15850             DrawPropertiesWindow();
15851         }
15852
15853         if (drawing_function == GADGET_ID_PICK_ELEMENT)
15854           ClickOnGadget(level_editor_gadget[last_drawing_function],
15855                         MB_LEFTBUTTON);
15856
15857         if (!use_permanent_palette)
15858           ChangeEditModeWindow(last_edit_mode);
15859       }
15860 #ifdef DEBUG
15861       else if (gi->event.type == GD_EVENT_PRESSED)
15862         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
15863       else if (gi->event.type == GD_EVENT_RELEASED)
15864         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
15865       else if (gi->event.type == GD_EVENT_MOVING)
15866         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
15867       else
15868         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
15869 #endif
15870       break;
15871   }
15872 }
15873
15874 void HandleLevelEditorKeyInput(Key key)
15875 {
15876   char letter = getCharFromKey(key);
15877
15878   if (drawing_function == GADGET_ID_TEXT &&
15879       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
15880   {
15881     if (letter)
15882       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
15883     else if (key == KSYM_Delete || key == KSYM_BackSpace)
15884       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
15885     else if (key == KSYM_Return)
15886       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
15887     else if (key == KSYM_Escape)
15888       DrawLevelText(0, 0, 0, TEXT_END);
15889
15890     return;
15891   }
15892
15893   int id = GADGET_ID_NONE;
15894   int new_element_shift = element_shift;
15895   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
15896   int button = MB_LEFTBUTTON;
15897   int i;
15898
15899   switch (key)
15900   {
15901     case KSYM_Left:
15902       id = GADGET_ID_SCROLL_LEFT;
15903       break;
15904     case KSYM_Right:
15905       id = GADGET_ID_SCROLL_RIGHT;
15906       break;
15907     case KSYM_Up:
15908       id = GADGET_ID_SCROLL_UP;
15909       break;
15910     case KSYM_Down:
15911       id = GADGET_ID_SCROLL_DOWN;
15912       break;
15913
15914     case KSYM_Page_Up:
15915     case KSYM_Page_Down:
15916       step *= (key == KSYM_Page_Up ? -1 : +1);
15917       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15918
15919       if (element_shift < 0)
15920         element_shift = 0;
15921       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15922         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15923
15924       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15925                    GDI_SCROLLBAR_ITEM_POSITION,
15926                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15927
15928       ModifyEditorElementList();
15929
15930       break;
15931
15932     case KSYM_Home:
15933     case KSYM_End:
15934       element_shift = (key == KSYM_Home ? 0 :
15935                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
15936
15937       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15938                    GDI_SCROLLBAR_ITEM_POSITION,
15939                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15940
15941       ModifyEditorElementList();
15942
15943       break;
15944
15945     case KSYM_Insert:
15946     case KSYM_Delete:
15947
15948       // this is needed to prevent interference with running "True X-Mouse"
15949       if (GetKeyModStateFromEvents() & KMOD_Control)
15950         break;
15951
15952       // check for last or next editor cascade block in element list
15953       for (i = 0; i < num_editor_elements; i++)
15954       {
15955         if ((key == KSYM_Insert && i == element_shift) ||
15956             (key == KSYM_Delete && new_element_shift > element_shift))
15957           break;
15958
15959         // jump to next cascade block (or to start of element list)
15960         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
15961           new_element_shift = i;
15962       }
15963
15964       if (i < num_editor_elements)
15965         element_shift = new_element_shift;
15966
15967       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15968         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15969
15970       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15971                    GDI_SCROLLBAR_ITEM_POSITION,
15972                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15973
15974       ModifyEditorElementList();
15975
15976       break;
15977
15978     case KSYM_Escape:
15979       if (edit_mode == ED_MODE_DRAWING)
15980         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
15981       else if (edit_mode == ED_MODE_LEVELCONFIG)
15982         HandleControlButtons(level_editor_gadget[GADGET_ID_CONF]);
15983       else if (edit_mode == ED_MODE_PROPERTIES)
15984         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
15985       else if (edit_mode == ED_MODE_PALETTE)
15986         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
15987       else              // should never happen
15988         ChangeEditModeWindow(ED_MODE_DRAWING);
15989
15990       break;
15991
15992     default:
15993       break;
15994   }
15995
15996   if (id != GADGET_ID_NONE)
15997     ClickOnGadget(level_editor_gadget[id], button);
15998   else if (letter == '1' || letter == '?')
15999     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
16000   else if (letter == '2')
16001     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
16002   else if (letter == '3')
16003     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
16004   else if (letter == '.')
16005     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
16006   else if (letter == 'U')
16007     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
16008   else if (letter == '-' || key == KSYM_KP_Subtract)
16009     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
16010   else if (letter == '0' || key == KSYM_KP_0)
16011     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
16012   else if (letter == '+' || key == KSYM_KP_Add ||
16013            letter == '=')       // ("Shift-=" is "+" on US keyboards)
16014     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
16015   else if (key == KSYM_Return ||
16016            key == KSYM_space ||
16017            key == setup.shortcut.toggle_pause)
16018     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
16019   else
16020     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
16021       if (letter && letter == controlbutton_info[i].shortcut)
16022         if (!anyTextGadgetActive())
16023           ClickOnGadget(level_editor_gadget[i], button);
16024
16025   if (draw_with_brush)
16026   {
16027     if (letter == 'x')
16028       FlipBrushX();
16029     else if (letter == 'y')
16030       FlipBrushY();
16031     else if (letter == 'z')
16032       RotateBrush();
16033   }
16034 }
16035
16036 static void HandleLevelEditorIdle_Properties(void)
16037 {
16038   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
16039   int x = editor.settings.element_graphic.x + element_border;
16040   int y = editor.settings.element_graphic.y + element_border;
16041   static DelayCounter action_delay = { 0 };
16042   int i;
16043
16044   action_delay.value = GameFrameDelay;
16045
16046   if (!DelayReached(&action_delay))
16047     return;
16048
16049   for (i = 0; i < ED_NUM_SELECTBOX; i++)
16050   {
16051     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
16052
16053     if (gi->mapped && gi->active && gi->selectbox.open)
16054       return;
16055   }
16056
16057   DrawEditorElementAnimation(SX + x, SY + y);
16058
16059   redraw_mask |= REDRAW_FIELD;
16060
16061   FrameCounter++;       // increase animation frame counter
16062 }
16063
16064 static void HandleLevelEditorIdle_Drawing(void)
16065 {
16066   static boolean last_highlighted = FALSE;
16067   static boolean last_highlighted_similar = FALSE;
16068   boolean highlighted = (GetKeyModState() & KMOD_Alt);
16069   boolean highlighted_similar = (GetKeyModState() & KMOD_Shift);
16070
16071   if (highlighted != last_highlighted ||
16072       (highlighted && highlighted_similar != last_highlighted_similar))
16073   {
16074     DrawAreaElementHighlight(highlighted, highlighted_similar);
16075
16076     redraw_mask |= REDRAW_FIELD;
16077   }
16078
16079   last_highlighted = highlighted;
16080   last_highlighted_similar = highlighted_similar;
16081 }
16082
16083 void HandleLevelEditorIdle(void)
16084 {
16085   if (edit_mode == ED_MODE_PROPERTIES)
16086     HandleLevelEditorIdle_Properties();
16087   else if (edit_mode == ED_MODE_DRAWING)
16088     HandleLevelEditorIdle_Drawing();
16089 }
16090
16091 static void ClearEditorGadgetInfoText(void)
16092 {
16093   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
16094 }
16095
16096 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
16097 {
16098   char infotext[MAX_OUTPUT_LINESIZE + 1];
16099   int max_infotext_len = getMaxInfoTextLength();
16100
16101   if (gi == NULL || strlen(gi->info_text) == 0)
16102     return;
16103
16104   strncpy(infotext, gi->info_text, max_infotext_len);
16105   infotext[max_infotext_len] = '\0';
16106
16107   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
16108   {
16109     int key = controlbutton_info[gi->custom_id].shortcut;
16110
16111     if (key)
16112     {
16113       char shortcut[MAX_OUTPUT_LINESIZE + 1];
16114
16115       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
16116         sprintf(shortcut, " ('.' or '%c')", key);
16117       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
16118         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
16119       else if (gi->custom_id == GADGET_ID_TEST)
16120         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
16121       else if (gi->custom_id == GADGET_ID_UNDO)
16122         sprintf(shortcut, " ('%c/Shift-U')", key);
16123       else if (gi->custom_id == GADGET_ID_ZOOM)
16124         sprintf(shortcut, " ('%c', '0', '-')", key);
16125       else
16126         sprintf(shortcut, " ('%s%c')",
16127                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
16128
16129       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
16130         strcat(infotext, shortcut);
16131     }
16132   }
16133
16134   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
16135 }
16136
16137 void HandleEditorGadgetInfoText(void *ptr)
16138 {
16139   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
16140
16141   if (game_status != GAME_MODE_EDITOR)
16142     return;
16143
16144   ClearEditorGadgetInfoText();
16145
16146   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
16147     return;
16148
16149   // misuse this function to delete brush cursor, if needed
16150   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
16151     DeleteBrushFromCursor();
16152
16153   PrintEditorGadgetInfoText(gi);
16154 }
16155
16156 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
16157 {
16158   int id = gi->custom_id;
16159   int type_id = gi->custom_type_id;
16160   int sx = gi->event.x;
16161   int sy = gi->event.y;
16162   int lx = sx + level_xpos;
16163   int ly = sy + level_ypos;
16164   int min_sx = 0, min_sy = 0;
16165   int max_sx = gi->drawing.area_xsize - 1;
16166   int max_sy = gi->drawing.area_ysize - 1;
16167   int actual_drawing_function = drawing_function;
16168   int max_infotext_len = getMaxInfoTextLength();
16169   char infotext[MAX_OUTPUT_LINESIZE + 1];
16170
16171   infotext[0] = '\0';           // start with empty info text
16172
16173   // pressed Control key: simulate picking element
16174   if (GetKeyModState() & KMOD_Control)
16175     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
16176
16177   ClearEditorGadgetInfoText();
16178
16179   if (gi->event.type == GD_EVENT_INFO_LEAVING)
16180     return;
16181
16182   // make sure to stay inside drawing area boundaries
16183   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
16184   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
16185
16186   if (id == GADGET_ID_DRAWING_LEVEL)
16187   {
16188     if (button_status)
16189     {
16190       int min_lx = 0, min_ly = 0;
16191       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
16192
16193       // get positions inside level field
16194       lx = sx + level_xpos;
16195       ly = sy + level_ypos;
16196
16197       // make sure to stay inside level field boundaries
16198       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
16199       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
16200
16201       // correct drawing area positions accordingly
16202       sx = lx - level_xpos;
16203       sy = ly - level_ypos;
16204     }
16205
16206     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16207     {
16208       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
16209       {
16210         static int start_lx = 0;
16211         static int start_ly = 0;
16212         char *text;
16213
16214         if (gi->event.type == GD_EVENT_PRESSED)
16215         {
16216           start_lx = lx;
16217           start_ly = ly;
16218         }
16219
16220         switch (actual_drawing_function)
16221         {
16222           case GADGET_ID_SINGLE_ITEMS:
16223             text = "Drawing single items";
16224             break;
16225           case GADGET_ID_CONNECTED_ITEMS:
16226             text = "Drawing connected items";
16227             break;
16228           case GADGET_ID_LINE:
16229             text = "Drawing line";
16230             break;
16231           case GADGET_ID_ARC:
16232             text = "Drawing arc";
16233             break;
16234           case GADGET_ID_TEXT:
16235             text = "Setting text cursor";
16236             break;
16237           case GADGET_ID_RECTANGLE:
16238             text = "Drawing rectangle";
16239             break;
16240           case GADGET_ID_FILLED_BOX:
16241             text = "Drawing filled box";
16242             break;
16243           case GADGET_ID_FLOOD_FILL:
16244             text = "Flood fill";
16245             break;
16246           case GADGET_ID_GRAB_BRUSH:
16247             text = "Grabbing brush";
16248             break;
16249           case GADGET_ID_PICK_ELEMENT:
16250             text = "Picking element";
16251             break;
16252
16253           default:
16254             text = "Drawing position";
16255             break;
16256         }
16257
16258         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16259           sprintf(infotext, "%s: %d, %d", text, lx, ly);
16260         else
16261           sprintf(infotext, "%s: %d, %d", text,
16262                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
16263       }
16264       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16265         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
16266       else
16267         sprintf(infotext, "Level position: %d, %d", lx, ly);
16268     }
16269
16270     // misuse this function to draw brush cursor, if needed
16271     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
16272     {
16273       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16274         CopyBrushToCursor(sx, sy);
16275       else
16276         DeleteBrushFromCursor();
16277     }
16278
16279     if (!draw_with_brush)
16280       UpdateBrushPosition(sx, sy);
16281   }
16282   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16283   {
16284     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
16285     int element = drawingarea_info[type_id].value[pos];
16286
16287     strncpy(infotext, getElementInfoText(element), max_infotext_len);
16288   }
16289   else
16290   {
16291     if (id == GADGET_ID_CUSTOM_CONTENT)
16292       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
16293     else if (id == GADGET_ID_GROUP_CONTENT)
16294       sprintf(infotext, "group element position: %d", sx + 1);
16295     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
16296              id <= GADGET_ID_YAMYAM_CONTENT_7)
16297       sprintf(infotext, "content area %d position: %d, %d",
16298               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
16299     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
16300              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
16301       sprintf(infotext, "content area %d position: %d, %d",
16302               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
16303     else if (id == GADGET_ID_ANDROID_CONTENT)
16304       sprintf(infotext, "android element position: %d", sx + 1);
16305     else if (drawingarea_info[type_id].infotext != NULL)
16306       strcpy(infotext, drawingarea_info[type_id].infotext);
16307   }
16308
16309   infotext[max_infotext_len] = '\0';
16310
16311   if (strlen(infotext) > 0)
16312     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
16313 }
16314
16315 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
16316                             boolean quick_quit)
16317 {
16318   if (!ask_if_level_has_changed ||
16319       !LevelChanged() ||
16320       Request("Level has changed! Exit without saving?",
16321               REQ_ASK | REQ_STAY_OPEN))
16322   {
16323     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
16324     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
16325
16326     // draw normal door
16327     UndrawSpecialEditorDoor();
16328
16329     // use door animation if door 1 viewport is unchanged and contains toolbox
16330     if (useEditorDoorAnimation())
16331       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
16332
16333     // close editor doors if viewport definition is the same as in main menu
16334     if (vp_door_1->x      == DX     &&
16335         vp_door_1->y      == DY     &&
16336         vp_door_1->width  == DXSIZE &&
16337         vp_door_1->height == DYSIZE &&
16338         vp_door_2->x      == VX     &&
16339         vp_door_2->y      == VY     &&
16340         vp_door_2->width  == VXSIZE &&
16341         vp_door_2->height == VYSIZE)
16342       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
16343     else
16344       SetDoorState(DOOR_CLOSE_ALL);
16345
16346     BackToFront();
16347
16348     if (quick_quit)
16349       FadeSkipNextFadeIn();
16350
16351     SetGameStatus(GAME_MODE_MAIN);
16352
16353     DrawMainMenu();
16354   }
16355   else
16356   {
16357     if (!global.use_envelope_request)
16358     {
16359       CloseDoor(DOOR_CLOSE_1);
16360       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
16361     }
16362   }
16363 }