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_ENVELOPE_AUTOWRAP,
 728   GADGET_ID_ENVELOPE_CENTERED,
 729   GADGET_ID_MM_LASER_RED,
 730   GADGET_ID_MM_LASER_GREEN,
 731   GADGET_ID_MM_LASER_BLUE,
 732   GADGET_ID_DF_LASER_RED,
 733   GADGET_ID_DF_LASER_GREEN,
 734   GADGET_ID_DF_LASER_BLUE,
 735   GADGET_ID_ROTATE_MM_BALL_CONTENT,
 736   GADGET_ID_EXPLODE_MM_BALL,
 737   GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 738   GADGET_ID_CUSTOM_CAN_EXPLODE,
 739   GADGET_ID_CUSTOM_EXPLODE_FIRE,
 740   GADGET_ID_CUSTOM_EXPLODE_SMASH,
 741   GADGET_ID_CUSTOM_EXPLODE_IMPACT,
 742   GADGET_ID_CUSTOM_WALK_TO_OBJECT,
 743   GADGET_ID_CUSTOM_DEADLY,
 744   GADGET_ID_CUSTOM_CAN_MOVE,
 745   GADGET_ID_CUSTOM_CAN_FALL,
 746   GADGET_ID_CUSTOM_CAN_SMASH,
 747   GADGET_ID_CUSTOM_SLIPPERY,
 748   GADGET_ID_CUSTOM_ACCESSIBLE,
 749   GADGET_ID_CUSTOM_GRAV_REACHABLE,
 750   GADGET_ID_CUSTOM_USE_LAST_VALUE,
 751   GADGET_ID_CUSTOM_USE_GRAPHIC,
 752   GADGET_ID_CUSTOM_USE_TEMPLATE_1,
 753   GADGET_ID_CUSTOM_USE_TEMPLATE_2,
 754   GADGET_ID_CUSTOM_USE_TEMPLATE_3,
 755   GADGET_ID_CUSTOM_CAN_CHANGE,
 756   GADGET_ID_CHANGE_USE_CONTENT,
 757   GADGET_ID_CHANGE_USE_EXPLOSION,
 758   GADGET_ID_CHANGE_ONLY_COMPLETE,
 759   GADGET_ID_CHANGE_USE_RANDOM,
 760   GADGET_ID_CHANGE_HAS_ACTION,
 761   GADGET_ID_CHANGE_DELAY,
 762   GADGET_ID_CHANGE_BY_DIRECT_ACT,
 763   GADGET_ID_CHANGE_BY_OTHER_ACT,
 764
 765   NUM_STATIC_GADGET_IDS
 766 };
 767
 768 // gadgets for buttons in element list (dynamic)
 769 #define GADGET_ID_ELEMENTLIST_FIRST     (NUM_STATIC_GADGET_IDS)
 770 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 771                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 772
 773 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 774
 775 // radio button numbers
 776 enum
 777 {
 778   RADIO_NR_NONE,
 779   RADIO_NR_DRAWING_TOOLBOX,
 780   RADIO_NR_RANDOM_ELEMENTS
 781 };
 782
 783 // values for counter gadgets
 784 enum
 785 {
 786   ED_COUNTER_ID_SELECT_LEVEL,
 787   ED_COUNTER_ID_LEVEL_XSIZE,
 788   ED_COUNTER_ID_LEVEL_YSIZE,
 789   ED_COUNTER_ID_LEVEL_GEMSLIMIT,
 790   ED_COUNTER_ID_LEVEL_TIMELIMIT,
 791   ED_COUNTER_ID_LEVEL_TIMESCORE,
 792   ED_COUNTER_ID_LEVEL_RANDOM_SEED,
 793   ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
 794   ED_COUNTER_ID_LEVEL_RANDOM,
 795   ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
 796   ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
 797   ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
 798   ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
 799   ED_COUNTER_ID_BD_PUSHING_PROB,
 800   ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
 801   ED_COUNTER_ID_ELEMENT_VALUE1,
 802   ED_COUNTER_ID_ELEMENT_VALUE2,
 803   ED_COUNTER_ID_ELEMENT_VALUE3,
 804   ED_COUNTER_ID_ELEMENT_VALUE4,
 805   ED_COUNTER_ID_YAMYAM_CONTENT,
 806   ED_COUNTER_ID_BALL_CONTENT,
 807   ED_COUNTER_ID_ANDROID_CONTENT,
 808   ED_COUNTER_ID_ENVELOPE_XSIZE,
 809   ED_COUNTER_ID_ENVELOPE_YSIZE,
 810   ED_COUNTER_ID_INVENTORY_SIZE,
 811   ED_COUNTER_ID_MM_BALL_CONTENT,
 812   ED_COUNTER_ID_CUSTOM_SCORE,
 813   ED_COUNTER_ID_CUSTOM_GEMCOUNT,
 814   ED_COUNTER_ID_CUSTOM_VALUE_FIX,
 815   ED_COUNTER_ID_CUSTOM_VALUE_RND,
 816   ED_COUNTER_ID_PUSH_DELAY_FIX,
 817   ED_COUNTER_ID_PUSH_DELAY_RND,
 818   ED_COUNTER_ID_DROP_DELAY_FIX,
 819   ED_COUNTER_ID_DROP_DELAY_RND,
 820   ED_COUNTER_ID_MOVE_DELAY_FIX,
 821   ED_COUNTER_ID_MOVE_DELAY_RND,
 822   ED_COUNTER_ID_STEP_DELAY_FIX,
 823   ED_COUNTER_ID_STEP_DELAY_RND,
 824   ED_COUNTER_ID_EXPLOSION_DELAY,
 825   ED_COUNTER_ID_IGNITION_DELAY,
 826   ED_COUNTER_ID_GROUP_CONTENT,
 827   ED_COUNTER_ID_CHANGE_DELAY_FIX,
 828   ED_COUNTER_ID_CHANGE_DELAY_RND,
 829   ED_COUNTER_ID_CHANGE_CONT_RND,
 830
 831   ED_NUM_COUNTERBUTTONS
 832 };
 833
 834 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 835 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 836 #define ED_COUNTER_ID_LEVELSET_FIRST    ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 837 #define ED_COUNTER_ID_LEVELSET_LAST     ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 838 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 839 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 840
 841 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 842 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 843 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 844 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 845 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 846 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 847
 848 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 849 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 850
 851 // values for scrollbutton gadgets
 852 enum
 853 {
 854   ED_SCROLLBUTTON_ID_AREA_UP,
 855   ED_SCROLLBUTTON_ID_AREA_DOWN,
 856   ED_SCROLLBUTTON_ID_AREA_LEFT,
 857   ED_SCROLLBUTTON_ID_AREA_RIGHT,
 858   ED_SCROLLBUTTON_ID_LIST_UP,
 859   ED_SCROLLBUTTON_ID_LIST_DOWN,
 860
 861   ED_NUM_SCROLLBUTTONS
 862 };
 863
 864 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 865 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 866
 867 // values for scrollbar gadgets
 868 enum
 869 {
 870   ED_SCROLLBAR_ID_AREA_HORIZONTAL,
 871   ED_SCROLLBAR_ID_AREA_VERTICAL,
 872   ED_SCROLLBAR_ID_LIST_VERTICAL,
 873
 874   ED_NUM_SCROLLBARS
 875 };
 876
 877 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 878 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 879
 880 // values for text input gadgets
 881 enum
 882 {
 883   ED_TEXTINPUT_ID_LEVEL_NAME,
 884   ED_TEXTINPUT_ID_LEVEL_AUTHOR,
 885   ED_TEXTINPUT_ID_LEVELSET_NAME,
 886   ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
 887   ED_TEXTINPUT_ID_ELEMENT_NAME,
 888
 889   ED_NUM_TEXTINPUT
 890 };
 891
 892 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 893 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 894
 895 #define ED_TEXTINPUT_ID_LEVELSET_FIRST  ED_TEXTINPUT_ID_LEVELSET_NAME
 896 #define ED_TEXTINPUT_ID_LEVELSET_LAST   ED_TEXTINPUT_ID_LEVELSET_AUTHOR
 897
 898 // values for text area gadgets
 899 enum
 900 {
 901   ED_TEXTAREA_ID_ENVELOPE_INFO,
 902
 903   ED_NUM_TEXTAREAS
 904 };
 905
 906 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 907 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 908
 909 // values for selectbox gadgets
 910 enum
 911 {
 912   ED_SELECTBOX_ID_TIME_OR_STEPS,
 913   ED_SELECTBOX_ID_TIME_SCORE_BASE,
 914   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
 915   ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
 916   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
 917   ED_SELECTBOX_ID_WIND_DIRECTION,
 918   ED_SELECTBOX_ID_PLAYER_SPEED,
 919   ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
 920   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
 921   ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
 922   ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
 923   ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
 924   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
 925   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
 926   ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
 927   ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
 928   ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
 929   ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
 930   ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
 931   ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
 932   ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
 933   ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
 934   ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
 935   ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
 936   ED_SELECTBOX_ID_CHANGE_SIDE,
 937   ED_SELECTBOX_ID_CHANGE_PLAYER,
 938   ED_SELECTBOX_ID_CHANGE_PAGE,
 939   ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
 940   ED_SELECTBOX_ID_ACTION_TYPE,
 941   ED_SELECTBOX_ID_ACTION_MODE,
 942   ED_SELECTBOX_ID_ACTION_ARG,
 943   ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
 944   ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
 945
 946   ED_NUM_SELECTBOX
 947 };
 948
 949 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 950 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 951
 952 #define ED_SELECTBOX_ID_LEVELSET_FIRST  ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 953 #define ED_SELECTBOX_ID_LEVELSET_LAST   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 954
 955 #define ED_SELECTBOX_ID_ENGINE_FIRST    ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 956 #define ED_SELECTBOX_ID_ENGINE_LAST     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 957
 958 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 959 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 960 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 961 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 962 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 963 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 964
 965 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 966 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 967
 968 // values for textbutton gadgets
 969 enum
 970 {
 971   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
 972   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
 973   ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
 974   ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
 975   ED_TEXTBUTTON_ID_PROPERTIES_INFO,
 976   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
 977   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
 978   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
 979   ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
 980   ED_TEXTBUTTON_ID_SAVE_LEVELSET,
 981   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
 982   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
 983   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
 984   ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
 985
 986   ED_NUM_TEXTBUTTONS
 987 };
 988
 989 #define ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
 990 #define ED_TAB_BUTTON_ID_LEVELCONFIG_LAST  ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
 991
 992 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
 993 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 994
 995 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
 996 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
 997
 998 // values for graphicbutton gadgets
 999 enum
1000 {
1001   ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
1002   ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
1003   ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
1004   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
1005
1006   ED_NUM_GRAPHICBUTTONS
1007 };
1008
1009 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
1010 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
1011
1012 // values for checkbutton gadgets
1013 enum
1014 {
1015   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
1016   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
1017   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
1018   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
1019   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
1020   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
1021   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
1022   ED_CHECKBUTTON_ID_BD_INTERMISSION,
1023   ED_CHECKBUTTON_ID_BD_PAL_TIMING,
1024   ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
1025   ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
1026   ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
1027   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
1028   ED_CHECKBUTTON_ID_STICK_ELEMENT,
1029   ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
1030   ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
1031   ED_CHECKBUTTON_ID_USE_SPRING_BUG,
1032   ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
1033   ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
1034   ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
1035   ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
1036   ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
1037   ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
1038   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
1039   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
1040   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
1041   ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
1042   ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
1043   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
1044   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
1045   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
1046   ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
1047   ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
1048   ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
1049   ED_CHECKBUTTON_ID_LAZY_RELOCATION,
1050   ED_CHECKBUTTON_ID_USE_START_ELEMENT,
1051   ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
1052   ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
1053   ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
1054   ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
1055   ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
1056   ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
1057   ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
1058   ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
1059   ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
1060   ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
1061   ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
1062   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
1063   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
1064   ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
1065   ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
1066   ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
1067   ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
1068   ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
1069   ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
1070   ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
1071   ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
1072   ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
1073   ED_CHECKBUTTON_ID_MM_LASER_RED,
1074   ED_CHECKBUTTON_ID_MM_LASER_GREEN,
1075   ED_CHECKBUTTON_ID_MM_LASER_BLUE,
1076   ED_CHECKBUTTON_ID_DF_LASER_RED,
1077   ED_CHECKBUTTON_ID_DF_LASER_GREEN,
1078   ED_CHECKBUTTON_ID_DF_LASER_BLUE,
1079   ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
1080   ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
1081   ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
1082   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
1083   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
1084   ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
1085   ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
1086   ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
1087   ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
1088   ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
1089   ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
1090   ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
1091   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
1092   ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
1093   ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
1094   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
1095   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
1096   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
1097   ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
1098   ED_CHECKBUTTON_ID_CHANGE_DELAY,
1099   ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
1100   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
1101   ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
1102   ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
1103   ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
1104   ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
1105   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
1106
1107   ED_NUM_CHECKBUTTONS
1108 };
1109
1110 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
1111 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
1112
1113 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
1114 #define ED_CHECKBUTTON_ID_LEVELSET_LAST  ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
1115
1116 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
1117 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
1118
1119 #define ED_CHECKBUTTON_ID_ENGINE_FIRST  ED_CHECKBUTTON_ID_BD_INTERMISSION
1120 #define ED_CHECKBUTTON_ID_ENGINE_LAST   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL
1121
1122 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
1123 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
1124 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
1125 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
1126 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
1127 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
1128
1129 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
1130 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
1131
1132 // values for radiobutton gadgets
1133 enum
1134 {
1135   ED_RADIOBUTTON_ID_PERCENTAGE,
1136   ED_RADIOBUTTON_ID_QUANTITY,
1137
1138   ED_NUM_RADIOBUTTONS
1139 };
1140
1141 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
1142 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
1143
1144 // values for drawing area gadgets
1145 enum
1146 {
1147   ED_DRAWING_ID_DRAWING_LEVEL,
1148   ED_DRAWING_ID_YAMYAM_CONTENT_0,
1149   ED_DRAWING_ID_YAMYAM_CONTENT_1,
1150   ED_DRAWING_ID_YAMYAM_CONTENT_2,
1151   ED_DRAWING_ID_YAMYAM_CONTENT_3,
1152   ED_DRAWING_ID_YAMYAM_CONTENT_4,
1153   ED_DRAWING_ID_YAMYAM_CONTENT_5,
1154   ED_DRAWING_ID_YAMYAM_CONTENT_6,
1155   ED_DRAWING_ID_YAMYAM_CONTENT_7,
1156   ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
1157   ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
1158   ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
1159   ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
1160   ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
1161   ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
1162   ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
1163   ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
1164   ED_DRAWING_ID_ANDROID_CONTENT,
1165   ED_DRAWING_ID_AMOEBA_CONTENT,
1166   ED_DRAWING_ID_BD_SNAP_ELEMENT,
1167   ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
1168   ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
1169   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
1170   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
1171   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
1172   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
1173   ED_DRAWING_ID_START_ELEMENT,
1174   ED_DRAWING_ID_ARTWORK_ELEMENT,
1175   ED_DRAWING_ID_EXPLOSION_ELEMENT,
1176   ED_DRAWING_ID_INVENTORY_CONTENT,
1177   ED_DRAWING_ID_MM_BALL_CONTENT,
1178   ED_DRAWING_ID_CUSTOM_GRAPHIC,
1179   ED_DRAWING_ID_CUSTOM_CONTENT,
1180   ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
1181   ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
1182   ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
1183   ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
1184   ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
1185   ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
1186   ED_DRAWING_ID_GROUP_CONTENT,
1187   ED_DRAWING_ID_RANDOM_BACKGROUND,
1188
1189   ED_NUM_DRAWING_AREAS
1190 };
1191
1192 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
1193 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
1194
1195
1196 // ----------------------------------------------------------------------------
1197 // some internally used definitions
1198 // ----------------------------------------------------------------------------
1199
1200 // values for CopyLevelToUndoBuffer()
1201 #define UNDO_IMMEDIATE                  0
1202 #define UNDO_ACCUMULATE                 1
1203
1204 // values for scrollbars
1205 #define ED_SCROLL_NO                    0
1206 #define ED_SCROLL_LEFT                  1
1207 #define ED_SCROLL_RIGHT                 2
1208 #define ED_SCROLL_UP                    4
1209 #define ED_SCROLL_DOWN                  8
1210
1211 // screens in the level editor
1212 #define ED_MODE_DRAWING                 0
1213 #define ED_MODE_LEVELCONFIG             1
1214 #define ED_MODE_PROPERTIES              2
1215 #define ED_MODE_PALETTE                 3
1216
1217 // sub-screens in the global settings section
1218 #define ED_MODE_LEVELCONFIG_LEVEL       ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
1219 #define ED_MODE_LEVELCONFIG_LEVELSET    ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET
1220 #define ED_MODE_LEVELCONFIG_EDITOR      ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR
1221 #define ED_MODE_LEVELCONFIG_ENGINE      ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
1222
1223 // sub-screens in the element properties section
1224 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1225 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1226 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1227 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1228 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1229
1230 // how many steps can be cancelled
1231 #define NUM_UNDO_STEPS                  (64 + 1)
1232
1233 // values for elements with score for certain actions
1234 #define MIN_SCORE                       0
1235 #define MAX_SCORE                       999
1236
1237 // values for elements with count for collecting
1238 #define MIN_COLLECT_COUNT               0
1239 #define MAX_COLLECT_COUNT               999
1240
1241 // values for random placement
1242 #define RANDOM_USE_PERCENTAGE           0
1243 #define RANDOM_USE_QUANTITY             1
1244
1245 // values for level set save mode
1246 #define LEVELSET_SAVE_MODE_UPDATE       0
1247 #define LEVELSET_SAVE_MODE_CREATE       1
1248
1249 // default value for element tile size in drawing area
1250 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1251 #define DEFAULT_EDITOR_TILESIZE_MM      TILESIZE
1252
1253
1254 // ----------------------------------------------------------------------------
1255 // some internally used data structure definitions
1256 // ----------------------------------------------------------------------------
1257
1258 static struct
1259 {
1260   int graphic;
1261   int gadget_id;
1262   struct XYTileSize *pos;
1263   int gadget_type;
1264   char *infotext;
1265   char shortcut;
1266 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1267 {
1268   // note: some additional characters are already reserved for "cheat mode"
1269   // shortcuts (":XYZ" style) -- for details, see "events.c"
1270
1271   // ---------- toolbox control buttons ---------------------------------------
1272
1273   {
1274     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1275     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1276     "draw single items",                        's'
1277   },
1278   {
1279     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1280     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1281     "draw connected items",                     'd'
1282   },
1283   {
1284     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1285     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1286     "draw lines",                               'l'
1287   },
1288   {
1289     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1290     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1291     "draw arcs",                                'a'
1292   },
1293   {
1294     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1295     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1296     "draw outline rectangles",                  'r'
1297   },
1298   {
1299     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1300     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1301     "draw filled rectangles",                   'R'
1302   },
1303   {
1304     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1305     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1306     "wrap (rotate) level up",                   0
1307   },
1308   {
1309     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1310     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1311     "enter text elements",                      't'
1312   },
1313   {
1314     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1315     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1316     "flood fill",                               'f'
1317   },
1318   {
1319     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1320     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1321     "wrap (rotate) level left",                 0
1322   },
1323   {
1324     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1325     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1326     "zoom level tile size",                     '+'
1327   },
1328   {
1329     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1330     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1331     "wrap (rotate) level right",                0
1332   },
1333   {
1334     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1335     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1336     "random element placement",                 0
1337   },
1338   {
1339     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1340     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1341     "grab brush",                               'b'
1342   },
1343   {
1344     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1345     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1346     "wrap (rotate) level down",                 0
1347   },
1348   {
1349     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1350     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1351     "pick drawing element",                     ','
1352   },
1353
1354   // ---------- level control buttons -----------------------------------------
1355
1356   {
1357     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1358     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1359     "undo/redo last operation",                 'u'
1360   },
1361   {
1362     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_CONF,
1363     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1364     "level and editor settings",                'I'
1365   },
1366   {
1367     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1368     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1369     "save level",                               'S'
1370   },
1371   {
1372     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1373     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1374     "clear level",                              'C'
1375   },
1376   {
1377     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1378     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1379     "test level",                               'T'
1380   },
1381   {
1382     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1383     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1384     "exit level editor",                        'E'
1385   },
1386
1387   // ---------- CE and GE control buttons -------------------------------------
1388
1389   {
1390     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1391     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1392     "copy settings from other element",         0
1393   },
1394   {
1395     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1396     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1397     "copy settings to other element",           0
1398   },
1399   {
1400     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1401     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1402     "exchange element with other element",      0
1403   },
1404   {
1405     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1406     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1407     "copy settings from this element",          0
1408   },
1409   {
1410     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1411     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1412     "paste settings to this element",           0
1413   },
1414
1415   // ---------- palette control buttons ---------------------------------------
1416
1417   {
1418     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1419     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1420     "properties of drawing element",            'p'
1421   },
1422   {
1423     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1424     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1425     "properties of drawing element 1",          '1'
1426   },
1427   {
1428     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1429     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1430     "properties of drawing element 2",          '2'
1431   },
1432   {
1433     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1434     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1435     "properties of drawing element 3",          '3'
1436   },
1437   {
1438     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1439     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1440     "show list of elements",                    'e'
1441   }
1442 };
1443
1444 static int random_placement_value = 10;
1445 static int random_placement_method = RANDOM_USE_QUANTITY;
1446 static int random_placement_background_element = EL_SAND;
1447 static boolean random_placement_background_restricted = FALSE;
1448 static boolean stick_element_properties_window = FALSE;
1449 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1450 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1451 static struct ElementChangeInfo custom_element_change;
1452 static struct ElementGroupInfo group_element_info;
1453 static struct ElementInfo custom_element;
1454
1455 static char levelset_name[MAX_LEVEL_NAME_LEN + 1];
1456 static char levelset_author[MAX_LEVEL_AUTHOR_LEN + 1];
1457 static int levelset_num_levels = 100;
1458 static boolean levelset_use_levelset_artwork = FALSE;
1459 static boolean levelset_copy_level_template = FALSE;
1460 static int levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
1461
1462 static struct
1463 {
1464   int gadget_type_id;
1465   int x, y;
1466   int min_value, max_value;
1467   int gadget_id_down, gadget_id_up;
1468   int gadget_id_text;
1469   int gadget_id_align;
1470   int *value;
1471   char *text_above, *text_left, *text_right;
1472 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1473 {
1474   // ---------- current level number ------------------------------------------
1475
1476   {
1477     ED_COUNTER_ID_SELECT_LEVEL,
1478     -1, -1,     // these values are not constant, but can change at runtime
1479     1,                                  100,
1480     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1481     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1482     &level_nr,
1483     NULL,                               NULL, NULL
1484   },
1485
1486   // ---------- level and editor settings -------------------------------------
1487
1488   {
1489     ED_COUNTER_ID_LEVEL_XSIZE,
1490     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1491     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1492     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1493     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1494     &level.fieldx,
1495     "playfield size:",                  NULL, "width",
1496   },
1497   {
1498     ED_COUNTER_ID_LEVEL_YSIZE,
1499     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1500     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1501     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1502     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1503     &level.fieldy,
1504     NULL,                               " ", "height",
1505   },
1506   {
1507     ED_COUNTER_ID_LEVEL_GEMSLIMIT,
1508     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1509     0,                                  999,
1510     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1511     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1512     &level.gems_needed,
1513     NULL,                               "number of gems to collect:", NULL
1514   },
1515   {
1516     ED_COUNTER_ID_LEVEL_TIMELIMIT,
1517     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
1518     0,                                  9999,
1519     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1520     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1521     &level.time,
1522     "time or step limit to solve level:", NULL, NULL
1523   },
1524   {
1525     ED_COUNTER_ID_LEVEL_TIMESCORE,
1526     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
1527     0,                                  999,
1528     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1529     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1530     &level.score[SC_TIME_BONUS],
1531     "score for time or steps left:",    NULL, NULL
1532   },
1533   {
1534     ED_COUNTER_ID_LEVEL_RANDOM_SEED,
1535     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(13),
1536     0,                                  9999,
1537     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1538     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1539     &level.random_seed,
1540     NULL,                               "random seed:", "(0 => random)"
1541   },
1542   {
1543     ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
1544     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1545     1,                                  MAX_LEVELS,
1546     GADGET_ID_LEVELSET_NUM_LEVELS_DOWN, GADGET_ID_LEVELSET_NUM_LEVELS_UP,
1547     GADGET_ID_LEVELSET_NUM_LEVELS_TEXT, GADGET_ID_NONE,
1548     &levelset_num_levels,
1549     "number of levels:",                NULL, NULL,
1550   },
1551   {
1552     ED_COUNTER_ID_LEVEL_RANDOM,
1553     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1554     1,                                  100,
1555     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1556     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1557     &random_placement_value,
1558     "random element placement:",        NULL, "in"
1559   },
1560   {
1561     ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
1562     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1563     50,                                 500,
1564     GADGET_ID_BD_CYCLE_DELAY_MS_DOWN,   GADGET_ID_BD_CYCLE_DELAY_MS_UP,
1565     GADGET_ID_BD_CYCLE_DELAY_MS_TEXT,   GADGET_ID_NONE,
1566     &level.bd_cycle_delay_ms,
1567     NULL,                               NULL, "game cycle delay (ms)"
1568   },
1569   {
1570     ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
1571     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1572     0,                                  32,
1573     GADGET_ID_BD_CYCLE_DELAY_C64_DOWN,  GADGET_ID_BD_CYCLE_DELAY_C64_UP,
1574     GADGET_ID_BD_CYCLE_DELAY_C64_TEXT,  GADGET_ID_NONE,
1575     &level.bd_cycle_delay_c64,
1576     NULL,                               NULL, "game cycle delay (C64-style)"
1577   },
1578   {
1579     ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
1580     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1581     1,                                  40,
1582     GADGET_ID_BD_HATCHING_DELAY_CYCLES_DOWN,    GADGET_ID_BD_HATCHING_DELAY_CYCLES_UP,
1583     GADGET_ID_BD_HATCHING_DELAY_CYCLES_TEXT,    GADGET_ID_NONE,
1584     &level.bd_hatching_delay_cycles,
1585     NULL,                               NULL, "hatching delay (cycles)"
1586   },
1587   {
1588     ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
1589     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1590     1,                                  40,
1591     GADGET_ID_BD_HATCHING_DELAY_SECONDS_DOWN,   GADGET_ID_BD_HATCHING_DELAY_SECONDS_UP,
1592     GADGET_ID_BD_HATCHING_DELAY_SECONDS_TEXT,   GADGET_ID_NONE,
1593     &level.bd_hatching_delay_seconds,
1594     NULL,                               NULL, "hatching delay (seconds)"
1595   },
1596
1597   // ---------- element settings: configure (various elements) ----------------
1598
1599   {
1600     ED_COUNTER_ID_BD_PUSHING_PROB,
1601     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1602     0,                                  100,
1603     GADGET_ID_BD_PUSHING_PROB_DOWN,     GADGET_ID_BD_PUSHING_PROB_UP,
1604     GADGET_ID_BD_PUSHING_PROB_TEXT,     GADGET_ID_NONE,
1605     &level.bd_pushing_prob,
1606     NULL,                               NULL, "push probability"
1607   },
1608   {
1609     ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
1610     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1611     0,                                  100,
1612     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_DOWN,  GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_UP,
1613     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_TEXT,  GADGET_ID_NONE,
1614     &level.bd_pushing_prob_with_sweet,
1615     NULL,                               NULL, "push probability with sweet"
1616   },
1617   {
1618     ED_COUNTER_ID_ELEMENT_VALUE1,
1619     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1620     MIN_SCORE,                          MAX_SCORE,
1621     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1622     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1623     NULL,                               // will be set when used
1624     NULL,                               NULL, NULL
1625   },
1626   {
1627     ED_COUNTER_ID_ELEMENT_VALUE2,
1628     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1629     MIN_SCORE,                          MAX_SCORE,
1630     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1631     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1632     NULL,                               // will be set when used
1633     NULL,                               NULL, NULL
1634   },
1635   {
1636     ED_COUNTER_ID_ELEMENT_VALUE3,
1637     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1638     MIN_SCORE,                          MAX_SCORE,
1639     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1640     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1641     NULL,                               // will be set when used
1642     NULL,                               NULL, NULL
1643   },
1644   {
1645     ED_COUNTER_ID_ELEMENT_VALUE4,
1646     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1647     MIN_SCORE,                          MAX_SCORE,
1648     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1649     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1650     NULL,                               // will be set when used
1651     NULL,                               NULL, NULL
1652   },
1653   {
1654     ED_COUNTER_ID_YAMYAM_CONTENT,
1655     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1656     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1657     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1658     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1659     &level.num_yamyam_contents,
1660     NULL,                               NULL, "number of content areas"
1661   },
1662   {
1663     ED_COUNTER_ID_BALL_CONTENT,
1664     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1665     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1666     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1667     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1668     &level.num_ball_contents,
1669     NULL,                               NULL, "number of content areas"
1670   },
1671   {
1672     ED_COUNTER_ID_ANDROID_CONTENT,
1673     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1674     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1675     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1676     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1677     &level.num_android_clone_elements,
1678     NULL,                               NULL, "number of clonable elements"
1679   },
1680   {
1681     ED_COUNTER_ID_ENVELOPE_XSIZE,
1682     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1683     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1684     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1685     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1686     NULL,                               // will be set when used
1687     NULL,                               NULL, "width",
1688   },
1689   {
1690     ED_COUNTER_ID_ENVELOPE_YSIZE,
1691     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1692     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1693     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1694     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1695     NULL,                               // will be set when used
1696     NULL,                               " ", "height",
1697   },
1698   {
1699     ED_COUNTER_ID_INVENTORY_SIZE,
1700     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1701     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1702     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1703     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1704     &level.initial_inventory_size[0],
1705     NULL,                               NULL, "number of inventory elements"
1706   },
1707   {
1708     ED_COUNTER_ID_MM_BALL_CONTENT,
1709     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1710     MIN_ELEMENTS_IN_GROUP,              MAX_MM_BALL_CONTENTS,
1711     GADGET_ID_MM_BALL_CONTENT_DOWN,     GADGET_ID_MM_BALL_CONTENT_UP,
1712     GADGET_ID_MM_BALL_CONTENT_TEXT,     GADGET_ID_NONE,
1713     &level.num_mm_ball_contents,
1714     NULL,                               NULL, "number of content elements"
1715   },
1716
1717   // ---------- element settings: configure 1 (custom elements) ---------------
1718
1719   {
1720     ED_COUNTER_ID_CUSTOM_SCORE,
1721     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1722     MIN_SCORE,                          MAX_SCORE,
1723     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1724     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1725     &custom_element.collect_score_initial,
1726     NULL,                               "CE score", " "
1727   },
1728   {
1729     ED_COUNTER_ID_CUSTOM_GEMCOUNT,
1730     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1731     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1732     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1733     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1734     &custom_element.collect_count_initial,
1735     NULL,                               "CE count", NULL
1736   },
1737   {
1738     ED_COUNTER_ID_CUSTOM_VALUE_FIX,
1739     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1740     0,                                  9999,
1741     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1742     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1743     &custom_element.ce_value_fixed_initial,
1744     NULL,                               "CE value", NULL
1745   },
1746   {
1747     ED_COUNTER_ID_CUSTOM_VALUE_RND,
1748     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1749     0,                                  9999,
1750     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1751     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1752     &custom_element.ce_value_random_initial,
1753     NULL,                               "+random", NULL
1754   },
1755   {
1756     ED_COUNTER_ID_PUSH_DELAY_FIX,
1757     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1758     0,                                  999,
1759     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1760     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1761     &custom_element.push_delay_fixed,
1762     NULL,                               "push delay", NULL
1763   },
1764   {
1765     ED_COUNTER_ID_PUSH_DELAY_RND,
1766     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1767     0,                                  999,
1768     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1769     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1770     &custom_element.push_delay_random,
1771     NULL,                               "+random", NULL
1772   },
1773   {
1774     ED_COUNTER_ID_DROP_DELAY_FIX,
1775     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1776     0,                                  999,
1777     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1778     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1779     &custom_element.drop_delay_fixed,
1780     NULL,                               "drop delay", NULL
1781   },
1782   {
1783     ED_COUNTER_ID_DROP_DELAY_RND,
1784     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1785     0,                                  999,
1786     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1787     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1788     &custom_element.drop_delay_random,
1789     NULL,                               "+random", NULL
1790   },
1791
1792   // ---------- element settings: configure 2 (custom elements) ---------------
1793
1794   {
1795     ED_COUNTER_ID_MOVE_DELAY_FIX,
1796     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1797     0,                                  999,
1798     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1799     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1800     &custom_element.move_delay_fixed,
1801     NULL,                               "move delay", NULL
1802   },
1803   {
1804     ED_COUNTER_ID_MOVE_DELAY_RND,
1805     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1806     0,                                  999,
1807     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1808     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1809     &custom_element.move_delay_random,
1810     NULL,                               "+random", NULL
1811   },
1812   {
1813     ED_COUNTER_ID_STEP_DELAY_FIX,
1814     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1815     0,                                  999,
1816     GADGET_ID_STEP_DELAY_FIX_DOWN,      GADGET_ID_STEP_DELAY_FIX_UP,
1817     GADGET_ID_STEP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1818     &custom_element.step_delay_fixed,
1819     NULL,                               "step delay", NULL
1820   },
1821   {
1822     ED_COUNTER_ID_STEP_DELAY_RND,
1823     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1824     0,                                  999,
1825     GADGET_ID_STEP_DELAY_RND_DOWN,      GADGET_ID_STEP_DELAY_RND_UP,
1826     GADGET_ID_STEP_DELAY_RND_TEXT,      GADGET_ID_STEP_DELAY_FIX_UP,
1827     &custom_element.step_delay_random,
1828     NULL,                               "+random", NULL
1829   },
1830   {
1831     ED_COUNTER_ID_EXPLOSION_DELAY,
1832     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1833     0,                                  999,
1834     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1835     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1836     &custom_element.explosion_delay,
1837     NULL,                               "explosion delay", NULL
1838   },
1839   {
1840     ED_COUNTER_ID_IGNITION_DELAY,
1841     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
1842     0,                                  999,
1843     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1844     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1845     &custom_element.ignition_delay,
1846     NULL,                               "ignition delay", "(by fire)"
1847   },
1848
1849   // ---------- element settings: configure (group elements) ------------------
1850
1851   {
1852     ED_COUNTER_ID_GROUP_CONTENT,
1853     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1854     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1855     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1856     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1857     &group_element_info.num_elements,
1858     NULL,                               NULL, "number of elements in group"
1859   },
1860
1861   // ---------- element settings: advanced (custom elements) ------------------
1862
1863   {
1864     ED_COUNTER_ID_CHANGE_DELAY_FIX,
1865     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1866     0,                                  999,
1867     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1868     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1869     &custom_element_change.delay_fixed,
1870     NULL,                               "CE delay", NULL,
1871   },
1872   {
1873     ED_COUNTER_ID_CHANGE_DELAY_RND,
1874     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1875     0,                                  999,
1876     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1877     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1878     &custom_element_change.delay_random,
1879     NULL,                               "+random", NULL
1880   },
1881   {
1882     ED_COUNTER_ID_CHANGE_CONT_RND,
1883     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1884     0,                                  100,
1885     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1886     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1887     &custom_element_change.random_percentage,
1888     NULL,                               "use random replace:", "%"
1889   },
1890 };
1891
1892 static struct
1893 {
1894   int gadget_type_id;
1895   int x, y;
1896   int gadget_id;
1897   int size;
1898   char *value;
1899   char *text_above, *infotext;
1900 } textinput_info[ED_NUM_TEXTINPUT] =
1901 {
1902   {
1903     ED_TEXTINPUT_ID_LEVEL_NAME,
1904     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1905     GADGET_ID_LEVEL_NAME,
1906     MAX_LEVEL_NAME_LEN,
1907     level.name,
1908     "Title:", "Title for this level"
1909   },
1910   {
1911     ED_TEXTINPUT_ID_LEVEL_AUTHOR,
1912     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1913     GADGET_ID_LEVEL_AUTHOR,
1914     MAX_LEVEL_AUTHOR_LEN,
1915     level.author,
1916     "Author:", "Author for this level"
1917   },
1918   {
1919     ED_TEXTINPUT_ID_LEVELSET_NAME,
1920     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1921     GADGET_ID_LEVELSET_NAME,
1922     MAX_LEVEL_NAME_LEN,
1923     levelset_name,
1924     "Title:", "Title for this or new level set"
1925   },
1926   {
1927     ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
1928     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1929     GADGET_ID_LEVELSET_AUTHOR,
1930     MAX_LEVEL_AUTHOR_LEN,
1931     levelset_author,
1932     "Author:", "Author for this or new level set"
1933   },
1934   {
1935     ED_TEXTINPUT_ID_ELEMENT_NAME,
1936     -1, -1,     // these values are not constant, but can change at runtime
1937     GADGET_ID_ELEMENT_NAME,
1938     MAX_ELEMENT_NAME_LEN - 2,           // currently 2 chars less editable
1939     custom_element.description,
1940     NULL, "Element name"
1941   }
1942 };
1943
1944 static struct
1945 {
1946   int gadget_type_id;
1947   int x, y;
1948   int gadget_id;
1949   int xsize, ysize;
1950   char *value;
1951   char *text_above, *text_above_cropped, *infotext;
1952 } textarea_info[ED_NUM_TEXTAREAS] =
1953 {
1954   {
1955     ED_TEXTAREA_ID_ENVELOPE_INFO,
1956     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1957     GADGET_ID_ENVELOPE_INFO,
1958     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1959     NULL,
1960     "Envelope Content:", "Envelope Content (cropped):", "Envelope Content"
1961   }
1962 };
1963
1964 static struct ValueTextInfo options_time_or_steps[] =
1965 {
1966   { 0,                          "seconds"                       },
1967   { 1,                          "steps"                         },
1968
1969   { -1,                         NULL                            }
1970 };
1971
1972 static struct ValueTextInfo options_time_score_base[] =
1973 {
1974   { 1,                          "per second/step"               },
1975   { 10,                         "per 10 seconds/steps"          },
1976
1977   { -1,                         NULL                            }
1978 };
1979
1980 static struct ValueTextInfo options_game_engine_type[] =
1981 {
1982   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
1983   { GAME_ENGINE_TYPE_BD,        "Boulder Dash"                  },
1984   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
1985   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
1986   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
1987
1988   { -1,                         NULL                            }
1989 };
1990
1991 static struct ValueTextInfo options_levelset_save_mode[] =
1992 {
1993   { LEVELSET_SAVE_MODE_UPDATE,  "Update this level set"         },
1994   { LEVELSET_SAVE_MODE_CREATE,  "Create new level set"          },
1995
1996   { -1,                         NULL                            }
1997 };
1998
1999 static struct ValueTextInfo options_wind_direction[] =
2000 {
2001   { MV_START_NONE,              "none"                          },
2002   { MV_START_LEFT,              "left"                          },
2003   { MV_START_RIGHT,             "right"                         },
2004   { MV_START_UP,                "up"                            },
2005   { MV_START_DOWN,              "down"                          },
2006
2007   { -1,                         NULL                            }
2008 };
2009
2010 static struct ValueTextInfo options_player_speed[] =
2011 {
2012   { 0,                          "frozen"                        },
2013   { 1,                          "very slow"                     },
2014   { 2,                          "slow"                          },
2015   { 4,                          "normal"                        },
2016   { 8,                          "fast"                          },
2017   { 16,                         "very fast"                     },
2018   { 32,                         "ultrafast"                     },
2019
2020   { -1,                         NULL                            }
2021 };
2022
2023 static struct ValueTextInfo options_access_type[] =
2024 {
2025   { EP_WALKABLE,                "walkable"                      },
2026   { EP_PASSABLE,                "passable"                      },
2027
2028   { -1,                         NULL                            }
2029 };
2030
2031 static struct ValueTextInfo options_access_layer[] =
2032 {
2033   { EP_ACCESSIBLE_OVER,         "over"                          },
2034   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
2035   { EP_ACCESSIBLE_UNDER,        "under"                         },
2036
2037   { -1,                         NULL                            }
2038 };
2039
2040 static struct ValueTextInfo options_access_protected[] =
2041 {
2042   { 0,                          "unprotected"                   },
2043   { 1,                          "protected"                     },
2044
2045   { -1,                         NULL                            }
2046 };
2047
2048 static struct ValueTextInfo options_access_direction[] =
2049 {
2050   { MV_NO_DIRECTION,            "no direction"                  },
2051   { MV_LEFT,                    "left"                          },
2052   { MV_RIGHT,                   "right"                         },
2053   { MV_UP,                      "up"                            },
2054   { MV_DOWN,                    "down"                          },
2055   { MV_LEFT  | MV_UP,           "left + up"                     },
2056   { MV_LEFT  | MV_DOWN,         "left + down"                   },
2057   { MV_RIGHT | MV_UP,           "right + up"                    },
2058   { MV_RIGHT | MV_DOWN,         "right + down"                  },
2059   { MV_HORIZONTAL,              "horizontal"                    },
2060   { MV_VERTICAL,                "vertical"                      },
2061   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
2062   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
2063   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
2064   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
2065   { MV_ALL_DIRECTIONS,          "all directions"                },
2066
2067   { -1,                         NULL                            }
2068 };
2069
2070 static struct ValueTextInfo options_walk_to_action[] =
2071 {
2072   { EP_DIGGABLE,                "diggable"                      },
2073   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
2074   { EP_DROPPABLE,               "collectible & droppable"       },
2075   { EP_THROWABLE,               "collectible & throwable"       },
2076   { EP_PUSHABLE,                "pushable"                      },
2077
2078   { -1,                         NULL                            }
2079 };
2080
2081 static struct ValueTextInfo options_move_pattern[] =
2082 {
2083   { MV_LEFT,                    "left"                          },
2084   { MV_RIGHT,                   "right"                         },
2085   { MV_UP,                      "up"                            },
2086   { MV_DOWN,                    "down"                          },
2087   { MV_HORIZONTAL,              "horizontal"                    },
2088   { MV_VERTICAL,                "vertical"                      },
2089   { MV_ALL_DIRECTIONS,          "all directions"                },
2090   { MV_WIND_DIRECTION,          "wind direction"                },
2091   { MV_TOWARDS_PLAYER,          "towards player"                },
2092   { MV_AWAY_FROM_PLAYER,        "away from player"              },
2093   { MV_ALONG_LEFT_SIDE,         "along left side"               },
2094   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
2095   { MV_TURNING_LEFT,            "turning left"                  },
2096   { MV_TURNING_RIGHT,           "turning right"                 },
2097   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
2098   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
2099   { MV_TURNING_RANDOM,          "turning random"                },
2100   { MV_MAZE_RUNNER,             "maze runner style"             },
2101   { MV_MAZE_HUNTER,             "maze hunter style"             },
2102   { MV_WHEN_PUSHED,             "when pushed"                   },
2103   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
2104
2105   { -1,                         NULL                            }
2106 };
2107
2108 static struct ValueTextInfo options_move_direction[] =
2109 {
2110   { MV_START_AUTOMATIC,         "automatic"                     },
2111   { MV_START_LEFT,              "left"                          },
2112   { MV_START_RIGHT,             "right"                         },
2113   { MV_START_UP,                "up"                            },
2114   { MV_START_DOWN,              "down"                          },
2115   { MV_START_RANDOM,            "random"                        },
2116   { MV_START_PREVIOUS,          "previous"                      },
2117
2118   { -1,                         NULL                            }
2119 };
2120
2121 static struct ValueTextInfo options_move_stepsize[] =
2122 {
2123   { 0,                          "not moving"                    },
2124   { 1,                          "very slow"                     },
2125   { 2,                          "slow"                          },
2126   { 4,                          "normal"                        },
2127   { 8,                          "fast"                          },
2128   { 16,                         "very fast"                     },
2129   { 32,                         "even faster"                   },
2130
2131   { -1,                         NULL                            }
2132 };
2133
2134 static struct ValueTextInfo options_move_leave_type[] =
2135 {
2136   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
2137   { LEAVE_TYPE_LIMITED,         "change it to"                  },
2138
2139   { -1,                         NULL                            }
2140 };
2141
2142 static struct ValueTextInfo options_smash_targets[] =
2143 {
2144   { EP_CAN_SMASH_PLAYER,        "player"                        },
2145 #if 0
2146   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
2147 #endif
2148   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
2149
2150   { -1,                         NULL                            }
2151 };
2152
2153 static struct ValueTextInfo options_slippery_type[] =
2154 {
2155   { SLIPPERY_ANY_RANDOM,        "random"                        },
2156   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
2157   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
2158   { SLIPPERY_ONLY_LEFT,         "only left"                     },
2159   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
2160
2161   { -1,                         NULL                            }
2162 };
2163
2164 static struct ValueTextInfo options_deadliness[] =
2165 {
2166   { EP_DONT_RUN_INTO,           "running into"                  },
2167   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
2168   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
2169   { EP_DONT_TOUCH,              "touching"                      },
2170
2171   { -1,                         NULL                            }
2172 };
2173
2174 static struct ValueTextInfo options_explosion_type[] =
2175 {
2176   { EXPLODES_3X3,               "3x3"                           },
2177   { EXPLODES_CROSS,             "3+3"                           },
2178   { EXPLODES_1X1,               "1x1"                           },
2179
2180   { -1,                         NULL                            }
2181 };
2182
2183 static struct ValueTextInfo options_time_units[] =
2184 {
2185   { 1,                          "frames"                        },
2186   { FRAMES_PER_SECOND,          "seconds"                       },
2187
2188   { -1,                         NULL                            }
2189 };
2190
2191 static struct ValueTextInfo options_change_direct_action[] =
2192 {
2193   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
2194   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
2195   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
2196   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
2197   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
2198   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
2199   { CE_LEFT_BY_PLAYER,          "left by player"                },
2200   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
2201   { CE_SWITCHED,                "switched"                      },
2202   { CE_HITTING_SOMETHING,       "hitting something"             },
2203   { CE_HIT_BY_SOMETHING,        "hit by something"              },
2204 #if 0
2205   { CE_BLOCKED,                 "blocked"                       },
2206 #endif
2207   { CE_IMPACT,                  "impact (on something)"         },
2208   { CE_SMASHED,                 "smashed (from above)"          },
2209 #if 0
2210   { CE_VALUE_CHANGES,           "CE value changes"              },
2211   { CE_SCORE_CHANGES,           "CE score changes"              },
2212 #endif
2213   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
2214   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
2215   { CE_UNDEFINED,               " "                             },
2216   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2217   { CE_CLICKED_BY_MOUSE,        "clicked by mouse"              },
2218   { CE_PRESSED_BY_MOUSE,        "pressed by mouse"              },
2219   { CE_UNDEFINED,               " "                             },
2220   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2221   { CE_NEXT_TO_PLAYER,          "next to player"                },
2222
2223   { -1,                         NULL                            }
2224 };
2225
2226 static struct ValueTextInfo options_change_other_action[] =
2227 {
2228   { CE_PLAYER_TOUCHES_X,        "player touches"                },
2229   { CE_PLAYER_PRESSES_X,        "player presses"                },
2230   { CE_PLAYER_SWITCHES_X,       "player switches"               },
2231   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
2232   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
2233   { CE_PLAYER_ENTERS_X,         "player enters"                 },
2234   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
2235   { CE_PLAYER_DIGS_X,           "player digs"                   },
2236   { CE_PLAYER_COLLECTS_X,       "player collects"               },
2237   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
2238   { CE_TOUCHING_X,              "touching"                      },
2239   { CE_HITTING_X,               "hitting"                       },
2240   { CE_DIGGING_X,               "digging"                       },
2241   { CE_HIT_BY_X,                "hit by"                        },
2242   { CE_SWITCH_OF_X,             "switch of"                     },
2243   { CE_CHANGE_OF_X,             "change by page of"             },
2244   { CE_EXPLOSION_OF_X,          "explosion of"                  },
2245   { CE_MOVE_OF_X,               "move of"                       },
2246   { CE_CREATION_OF_X,           "creation of"                   },
2247   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
2248   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
2249   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
2250   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
2251   { CE_UNDEFINED,               " "                             },
2252   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2253   { CE_MOUSE_CLICKED_ON_X,      "mouse clicked on"              },
2254   { CE_MOUSE_PRESSED_ON_X,      "mouse pressed on"              },
2255   { CE_UNDEFINED,               " "                             },
2256   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2257   { CE_PLAYER_NEXT_TO_X,        "player next to"                },
2258   { CE_NEXT_TO_X,               "next to"                       },
2259
2260   { -1,                         NULL                            }
2261 };
2262
2263 static struct ValueTextInfo options_change_trigger_side[] =
2264 {
2265   { CH_SIDE_LEFT,               "left"                          },
2266   { CH_SIDE_RIGHT,              "right"                         },
2267   { CH_SIDE_TOP,                "top"                           },
2268   { CH_SIDE_BOTTOM,             "bottom"                        },
2269   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
2270   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
2271   { CH_SIDE_ANY,                "any"                           },
2272
2273   { -1,                         NULL                            }
2274 };
2275
2276 static struct ValueTextInfo options_change_trigger_player[] =
2277 {
2278   { CH_PLAYER_1,                "1"                             },
2279   { CH_PLAYER_2,                "2"                             },
2280   { CH_PLAYER_3,                "3"                             },
2281   { CH_PLAYER_4,                "4"                             },
2282   { CH_PLAYER_ANY,              "any"                           },
2283
2284   { -1,                         NULL                            }
2285 };
2286
2287 static struct ValueTextInfo options_change_trigger_page[] =
2288 {
2289   { (1u << 0),                  "1"                             },
2290   { (1u << 1),                  "2"                             },
2291   { (1u << 2),                  "3"                             },
2292   { (1u << 3),                  "4"                             },
2293   { (1u << 4),                  "5"                             },
2294   { (1u << 5),                  "6"                             },
2295   { (1u << 6),                  "7"                             },
2296   { (1u << 7),                  "8"                             },
2297   { (1u << 8),                  "9"                             },
2298   { (1u << 9),                  "10"                            },
2299   { (1u << 10),                 "11"                            },
2300   { (1u << 11),                 "12"                            },
2301   { (1u << 12),                 "13"                            },
2302   { (1u << 13),                 "14"                            },
2303   { (1u << 14),                 "15"                            },
2304   { (1u << 15),                 "16"                            },
2305   { (1u << 16),                 "17"                            },
2306   { (1u << 17),                 "18"                            },
2307   { (1u << 18),                 "19"                            },
2308   { (1u << 19),                 "20"                            },
2309   { (1u << 20),                 "21"                            },
2310   { (1u << 21),                 "22"                            },
2311   { (1u << 22),                 "23"                            },
2312   { (1u << 23),                 "24"                            },
2313   { (1u << 24),                 "25"                            },
2314   { (1u << 25),                 "26"                            },
2315   { (1u << 26),                 "27"                            },
2316   { (1u << 27),                 "28"                            },
2317   { (1u << 28),                 "29"                            },
2318   { (1u << 29),                 "30"                            },
2319   { (1u << 30),                 "31"                            },
2320   { (1u << 31),                 "32"                            },
2321   { CH_PAGE_ANY,                "any"                           },
2322
2323   { -1,                         NULL                            }
2324 };
2325
2326 static struct ValueTextInfo options_change_replace_when[] =
2327 {
2328   { CP_WHEN_EMPTY,              "empty"                         },
2329   { CP_WHEN_WALKABLE,           "walkable"                      },
2330   { CP_WHEN_DIGGABLE,           "diggable"                      },
2331   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
2332   { CP_WHEN_REMOVABLE,          "removable"                     },
2333   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
2334
2335   { -1,                         NULL                            }
2336 };
2337
2338 static struct ValueTextInfo options_action_type[] =
2339 {
2340   { CA_NO_ACTION,               "no action"                     },
2341   { CA_UNDEFINED,               " "                             },
2342   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
2343   { CA_RESTART_LEVEL,           "restart level"                 },
2344   { CA_SHOW_ENVELOPE,           "show envelope"                 },
2345   { CA_SET_LEVEL_TIME,          "set time"                      },
2346   { CA_SET_LEVEL_SCORE,         "set score"                     },
2347   { CA_SET_LEVEL_GEMS,          "set gems"                      },
2348   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
2349   { CA_SET_LEVEL_RANDOM_SEED,   "set random seed"               },
2350   { CA_UNDEFINED,               " "                             },
2351   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
2352   { CA_MOVE_PLAYER,             "move player"                   },
2353   { CA_MOVE_PLAYER_NEW,         "move player new"               },
2354   { CA_EXIT_PLAYER,             "exit player"                   },
2355   { CA_KILL_PLAYER,             "kill player"                   },
2356   { CA_SET_PLAYER_KEYS,         "set keys"                      },
2357   { CA_SET_PLAYER_SPEED,        "set speed"                     },
2358   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
2359   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
2360   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
2361   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
2362   { CA_UNDEFINED,               " "                             },
2363   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
2364   { CA_SET_CE_VALUE,            "set CE value"                  },
2365   { CA_SET_CE_SCORE,            "set CE score"                  },
2366   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
2367   { CA_UNDEFINED,               " "                             },
2368   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
2369   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
2370
2371   { -1,                         NULL                            }
2372 };
2373
2374 static struct ValueTextInfo options_action_mode_none[] =
2375 {
2376   { CA_MODE_UNDEFINED,          " "                             },
2377
2378   { -1,                         NULL                            }
2379 };
2380
2381 static struct ValueTextInfo options_action_mode_assign[] =
2382 {
2383   { CA_MODE_SET,                "="                             },
2384
2385   { -1,                         NULL                            }
2386 };
2387
2388 static struct ValueTextInfo options_action_mode_add_remove[] =
2389 {
2390   { CA_MODE_ADD,                "+"                             },
2391   { CA_MODE_SUBTRACT,           "-"                             },
2392
2393   { -1,                         NULL                            }
2394 };
2395
2396 static struct ValueTextInfo options_action_mode_calculate[] =
2397 {
2398   { CA_MODE_SET,                "="                             },
2399   { CA_MODE_ADD,                "+"                             },
2400   { CA_MODE_SUBTRACT,           "-"                             },
2401   { CA_MODE_MULTIPLY,           "*"                             },
2402   { CA_MODE_DIVIDE,             "/"                             },
2403   { CA_MODE_MODULO,             "%"                             },
2404
2405   { -1,                         NULL                            }
2406 };
2407
2408 static struct ValueTextInfo options_action_arg_none[] =
2409 {
2410   { CA_ARG_UNDEFINED,           "         "                     },
2411
2412   { -1,                         NULL                            }
2413 };
2414
2415 static struct ValueTextInfo options_action_arg_player[] =
2416 {
2417   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2418   { CA_ARG_PLAYER_1,            "1"                             },
2419   { CA_ARG_PLAYER_2,            "2"                             },
2420   { CA_ARG_PLAYER_3,            "3"                             },
2421   { CA_ARG_PLAYER_4,            "4"                             },
2422   { CA_ARG_PLAYER_ANY,          "any"                           },
2423   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2424   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2425
2426   { -1,                         NULL                            }
2427 };
2428
2429 static struct ValueTextInfo options_action_arg_number[] =
2430 {
2431   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2432   { CA_ARG_0,                   "0"                             },
2433   { CA_ARG_1,                   "1"                             },
2434   { CA_ARG_2,                   "2"                             },
2435   { CA_ARG_3,                   "3"                             },
2436   { CA_ARG_4,                   "4"                             },
2437   { CA_ARG_5,                   "5"                             },
2438   { CA_ARG_10,                  "10"                            },
2439   { CA_ARG_100,                 "100"                           },
2440   { CA_ARG_1000,                "1000"                          },
2441   { CA_ARG_UNDEFINED,           " "                             },
2442   { CA_ARG_NUMBER_MIN,          "min"                           },
2443   { CA_ARG_NUMBER_MAX,          "max"                           },
2444   { CA_ARG_UNDEFINED,           " "                             },
2445   { CA_ARG_NUMBER_RESET,        "reset"                         },
2446   { CA_ARG_UNDEFINED,           " "                             },
2447   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2448   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2449   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2450   { CA_ARG_UNDEFINED,           " "                             },
2451   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2452   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2453   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2454   { CA_ARG_UNDEFINED,           " "                             },
2455   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2456   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2457   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2458   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2459   { CA_ARG_UNDEFINED,           " "                             },
2460   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2461   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2462   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2463   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2464
2465   { -1,                         NULL                            }
2466 };
2467
2468 static struct ValueTextInfo options_action_arg_value[] =
2469 {
2470   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2471   { CA_ARG_0,                   "0"                             },
2472   { CA_ARG_1,                   "1"                             },
2473   { CA_ARG_2,                   "2"                             },
2474   { CA_ARG_3,                   "3"                             },
2475   { CA_ARG_4,                   "4"                             },
2476   { CA_ARG_5,                   "5"                             },
2477   { CA_ARG_10,                  "10"                            },
2478   { CA_ARG_100,                 "100"                           },
2479   { CA_ARG_1000,                "1000"                          },
2480   { CA_ARG_UNDEFINED,           " "                             },
2481   { CA_ARG_NUMBER_MIN,          "min"                           },
2482   { CA_ARG_NUMBER_MAX,          "max"                           },
2483   { CA_ARG_UNDEFINED,           " "                             },
2484   { CA_ARG_NUMBER_RESET,        "reset"                         },
2485   { CA_ARG_UNDEFINED,           " "                             },
2486   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2487   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2488   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2489   { CA_ARG_UNDEFINED,           " "                             },
2490   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2491   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2492   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2493   { CA_ARG_UNDEFINED,           " "                             },
2494   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2495   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2496   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2497   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2498   { CA_ARG_UNDEFINED,           " "                             },
2499   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2500   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2501   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2502   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2503   { CA_ARG_UNDEFINED,           " "                             },
2504   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2505   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2506   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2507   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2508
2509   { -1,                         NULL                            }
2510 };
2511
2512 static struct ValueTextInfo options_action_arg_envelope[] =
2513 {
2514   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2515   { CA_ARG_1,                   "1"                             },
2516   { CA_ARG_2,                   "2"                             },
2517   { CA_ARG_3,                   "3"                             },
2518   { CA_ARG_4,                   "4"                             },
2519   { CA_ARG_UNDEFINED,           " "                             },
2520   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2521   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2522   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2523   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2524
2525   { -1,                         NULL                            }
2526 };
2527
2528 static struct ValueTextInfo options_action_arg_key[] =
2529 {
2530   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2531   { CA_ARG_1,                   "1"                             },
2532   { CA_ARG_2,                   "2"                             },
2533   { CA_ARG_3,                   "3"                             },
2534   { CA_ARG_4,                   "4"                             },
2535   { CA_ARG_5,                   "5"                             },
2536   { CA_ARG_6,                   "6"                             },
2537   { CA_ARG_7,                   "7"                             },
2538   { CA_ARG_8,                   "8"                             },
2539   { CA_ARG_UNDEFINED,           " "                             },
2540   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2541   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2542   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2543   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2544
2545   { -1,                         NULL                            }
2546 };
2547
2548 static struct ValueTextInfo options_action_arg_speed[] =
2549 {
2550   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2551   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2552   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2553   { CA_ARG_SPEED_SLOW,          "slow"                          },
2554   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2555   { CA_ARG_SPEED_FAST,          "fast"                          },
2556   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2557   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2558   { CA_ARG_UNDEFINED,           " "                             },
2559   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2560   { CA_ARG_SPEED_FASTER,        "faster"                        },
2561   { CA_ARG_UNDEFINED,           " "                             },
2562   { CA_ARG_SPEED_RESET,         "reset"                         },
2563
2564   { -1,                         NULL                            }
2565 };
2566
2567 static struct ValueTextInfo options_action_arg_shield[] =
2568 {
2569   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2570   { CA_ARG_SHIELD_OFF,          "off"                           },
2571   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2572   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2573
2574   { -1,                         NULL                            }
2575 };
2576
2577 static struct ValueTextInfo options_action_arg_artwork[] =
2578 {
2579   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2580   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2581   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2582   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2583   { CA_ARG_UNDEFINED,           " "                             },
2584   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2585
2586   { -1,                         NULL                            }
2587 };
2588
2589 static struct ValueTextInfo options_action_arg_gravity[] =
2590 {
2591   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2592   { CA_ARG_GRAVITY_ON,          "on"                            },
2593   { CA_ARG_GRAVITY_OFF,         "off"                           },
2594   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2595
2596   { -1,                         NULL                            }
2597 };
2598
2599 static struct ValueTextInfo options_action_arg_direction[] =
2600 {
2601   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2602   { CA_ARG_DIRECTION_NONE,      "none"                          },
2603   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2604   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2605   { CA_ARG_DIRECTION_UP,        "up"                            },
2606   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2607   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2608   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2609
2610   { -1,                         NULL                            }
2611 };
2612
2613 static struct ValueTextInfo options_action_arg_scan_mode[] =
2614 {
2615   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2616   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2617   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2618
2619   { -1,                         NULL                            }
2620 };
2621
2622 static struct ValueTextInfo options_action_arg_inventory[] =
2623 {
2624   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2625   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2626   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2627   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2628   { CA_ARG_UNDEFINED,           " "                             },
2629   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2630   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2631   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2632   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2633   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2634   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2635   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2636   { CA_ARG_UNDEFINED,           " "                             },
2637   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2638
2639   { -1,                         NULL                            }
2640 };
2641
2642 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2643 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2644 {
2645   { -1,                         NULL                            }
2646 };
2647
2648 static struct ValueTextInfo options_group_choice_mode[] =
2649 {
2650   { ANIM_RANDOM,                "random"                        },
2651   { ANIM_LOOP,                  "loop"                          },
2652   { ANIM_LINEAR,                "linear"                        },
2653   { ANIM_PINGPONG,              "pingpong"                      },
2654   { ANIM_PINGPONG2,             "pingpong 2"                    },
2655   { ANIM_LEVEL_NR,              "level number"                  },
2656
2657   { -1,                         NULL                            }
2658 };
2659
2660 static struct ValueTextInfo options_bd_scheduling_type[] =
2661 {
2662   { GD_SCHEDULING_MILLISECONDS,   "Milliseconds"                },
2663   { GD_SCHEDULING_BD1,            "BD1"                         },
2664   { GD_SCHEDULING_BD2,            "BD2"                         },
2665   { GD_SCHEDULING_PLCK,           "Construction Kit"            },
2666   { GD_SCHEDULING_CRDR,           "Crazy Dream 7"               },
2667   { GD_SCHEDULING_BD1_ATARI,      "Atari BD1"                   },
2668   { GD_SCHEDULING_BD2_PLCK_ATARI, "Atari BD2 / PLCK"            },
2669
2670   { -1,                           NULL                          }
2671 };
2672
2673 static struct ValueTextInfo *action_arg_modes[] =
2674 {
2675   options_action_mode_none,
2676   options_action_mode_assign,
2677   options_action_mode_add_remove,
2678   options_action_mode_calculate,
2679 };
2680
2681 static struct
2682 {
2683   int value;
2684   int mode;
2685   struct ValueTextInfo *options;
2686 }
2687 action_arg_options[] =
2688 {
2689   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2690   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2691   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2692   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2693   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2694   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2695   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2696   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2697   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2698   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2699   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2700   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2701   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2702   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2703   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2704   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2705   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2706   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2707   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2708   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2709   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2710   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2711
2712   { -1,                         FALSE,  NULL                            }
2713 };
2714
2715 static struct
2716 {
2717   int gadget_type_id;
2718   int x, y;
2719   int gadget_id;
2720   int gadget_id_align;
2721   int size;     // char size of selectbox or '-1' (dynamically determined)
2722   struct ValueTextInfo *options;
2723   int *value;
2724   char *text_above, *text_left, *text_right, *infotext;
2725 } selectbox_info[ED_NUM_SELECTBOX] =
2726 {
2727   // ---------- level and editor settings -------------------------------------
2728
2729   {
2730     ED_SELECTBOX_ID_TIME_OR_STEPS,
2731     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2732     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2733     -1,
2734     options_time_or_steps,
2735     &level.use_step_counter,
2736     NULL, NULL, "(0 => no limit)",      "time or step limit"
2737   },
2738   {
2739     ED_SELECTBOX_ID_TIME_SCORE_BASE,
2740     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2741     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2742     -1,
2743     options_time_score_base,
2744     &level.time_score_base,
2745     NULL, NULL, NULL,                   "time score for 1 or 10 seconds/steps"
2746   },
2747   {
2748     ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
2749     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2750     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2751     -1,
2752     options_game_engine_type,
2753     &level.game_engine_type,
2754     NULL, "game engine:", NULL,         "game engine"
2755   },
2756   {
2757     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
2758     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
2759     GADGET_ID_BD_SCHEDULING_TYPE,       GADGET_ID_NONE,
2760     -1,
2761     options_bd_scheduling_type,
2762     &level.bd_scheduling_type,
2763     NULL, "scheduling type:", NULL,     "level timing"
2764   },
2765   {
2766     ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
2767     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2768     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2769     -1,
2770     options_levelset_save_mode,
2771     &levelset_save_mode,
2772     "Action:", NULL, NULL,              "action when saving level set"
2773   },
2774
2775   // ---------- element settings: configure (several elements) ----------------
2776
2777   {
2778     ED_SELECTBOX_ID_WIND_DIRECTION,
2779     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2780     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2781     -1,
2782     options_wind_direction,
2783     &level.wind_direction_initial,
2784     NULL, "initial wind direction:", NULL,      "initial wind direction"
2785   },
2786   {
2787     ED_SELECTBOX_ID_PLAYER_SPEED,
2788     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2789     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2790     -1,
2791     options_player_speed,
2792     &level.initial_player_stepsize[0],
2793     NULL, "initial player speed:", NULL,        "initial player speed"
2794   },
2795   {
2796     ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
2797     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2798     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2799     -1,
2800     options_group_choice_mode,
2801     &level.mm_ball_choice_mode,
2802     NULL, "choice type:", NULL,         "type of content choice"
2803   },
2804
2805   // ---------- element settings: configure 1 (custom elements) ---------------
2806
2807   {
2808     ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
2809     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2810     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2811     -1,
2812     options_access_type,
2813     &custom_element.access_type,
2814     NULL, NULL, NULL,                   "type of access to this field"
2815   },
2816   {
2817     ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
2818     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2819     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2820     -1,
2821     options_access_layer,
2822     &custom_element.access_layer,
2823     NULL, NULL, NULL,                   "layer of access for this field"
2824   },
2825   {
2826     ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
2827     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2828     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2829     -1,
2830     options_access_protected,
2831     &custom_element.access_protected,
2832     NULL, NULL, NULL,                   "protected access for this field"
2833   },
2834   {
2835     ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
2836     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2837     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2838     -1,
2839     options_access_direction,
2840     &custom_element.access_direction,
2841     NULL, "from", NULL,                 "access direction for this field"
2842   },
2843   {
2844     ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
2845     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2846     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2847     -1,
2848     options_walk_to_action,
2849     &custom_element.walk_to_action,
2850     NULL, NULL, NULL,                   "diggable/collectible/pushable"
2851   },
2852
2853   // ---------- element settings: configure 2 (custom elements) ---------------
2854
2855   {
2856     ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
2857     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2858     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2859     -1,
2860     options_move_pattern,
2861     &custom_element.move_pattern,
2862     NULL, "can move", NULL,             "element move pattern"
2863   },
2864   {
2865     ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
2866     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2867     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2868     -1,
2869     options_move_direction,
2870     &custom_element.move_direction_initial,
2871     NULL, "starts moving", NULL,        "initial element move direction"
2872   },
2873   {
2874     ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
2875     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2876     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2877     -1,
2878     options_move_stepsize,
2879     &custom_element.move_stepsize,
2880     NULL, "move/fall speed", NULL,      "speed of element movement"
2881   },
2882   {
2883     ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
2884     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2885     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2886     -1,
2887     options_move_leave_type,
2888     &custom_element.move_leave_type,
2889     // left text with leading spaces to place gadget next to "can dig" gadget
2890     // (needed because drawing area gadgets created after selectbox gadgets)
2891     // NULL, "can dig:    can", ":",    "leave behind or change element"
2892     NULL, "            can", ":",       "leave behind or change element"
2893   },
2894   {
2895     ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
2896     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2897     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2898     -1,
2899     options_smash_targets,
2900     &custom_element.smash_targets,
2901     NULL, "can smash", NULL,            "elements that can be smashed"
2902   },
2903   {
2904     ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
2905     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2906     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2907     -1,
2908     options_slippery_type,
2909     &custom_element.slippery_type,
2910     NULL, "slippery", NULL,             "where other elements fall down"
2911   },
2912   {
2913     ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
2914     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2915     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2916     -1,
2917     options_deadliness,
2918     &custom_element.deadliness,
2919     NULL, "deadly when", NULL,          "deadliness of element"
2920   },
2921   {
2922     ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
2923     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2924     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2925     -1,
2926     options_explosion_type,
2927     &custom_element.explosion_type,
2928     NULL, "can explode", NULL,          "explosion type"
2929   },
2930
2931   // ---------- element settings: advanced (custom elements) ------------------
2932
2933   {
2934     ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
2935     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2936     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2937     -1,
2938     options_time_units,
2939     &custom_element_change.delay_frames,
2940     NULL, "delay time given in", NULL,  "delay time units for change"
2941   },
2942   {
2943     ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
2944     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2945     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2946     -1,
2947     options_change_direct_action,
2948     &custom_element_change.direct_action,
2949     NULL, NULL, NULL,                   "type of direct action"
2950   },
2951   {
2952     ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
2953     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2954     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2955     -1,
2956     options_change_other_action,
2957     &custom_element_change.other_action,
2958     NULL, NULL, "element:",             "type of other element action"
2959   },
2960   {
2961     ED_SELECTBOX_ID_CHANGE_SIDE,
2962     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2963     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2964     -1,
2965     options_change_trigger_side,
2966     &custom_element_change.trigger_side,
2967     NULL, "at", "side",                 "element side triggering change"
2968   },
2969   {
2970     ED_SELECTBOX_ID_CHANGE_PLAYER,
2971     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2972     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2973     -1,
2974     options_change_trigger_player,
2975     &custom_element_change.trigger_player,
2976     NULL, "player:", " ",               "player that causes change"
2977   },
2978   {
2979     ED_SELECTBOX_ID_CHANGE_PAGE,
2980     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2981     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2982     -1,
2983     options_change_trigger_page,
2984     &custom_element_change.trigger_page,
2985     NULL, "page:", NULL,                "change page that causes change"
2986   },
2987   {
2988     ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
2989     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2990     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2991     -1,
2992     options_change_replace_when,
2993     &custom_element_change.replace_when,
2994     NULL, "replace when", NULL,         "which elements can be replaced"
2995   },
2996   {
2997     ED_SELECTBOX_ID_ACTION_TYPE,
2998     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
2999     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
3000     15,
3001     options_action_type,
3002     &custom_element_change.action_type,
3003     NULL, NULL, NULL,                   "action on specified condition"
3004   },
3005   {
3006     ED_SELECTBOX_ID_ACTION_MODE,
3007     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3008     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
3009     -1,
3010     options_action_mode_none,
3011     &custom_element_change.action_mode,
3012     NULL, NULL, NULL,                   "action operator"
3013   },
3014   {
3015     ED_SELECTBOX_ID_ACTION_ARG,
3016     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3017     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
3018     -1,
3019     options_action_arg_none,
3020     &custom_element_change.action_arg,
3021     NULL, NULL, NULL,                   "action parameter"
3022   },
3023   {
3024     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
3025     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
3026     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
3027     3,
3028     options_change_page,
3029     &custom_element.current_change_page,
3030     NULL, NULL, NULL,                   "element change page"
3031   },
3032
3033   // ---------- element settings: configure (group elements) ------------------
3034
3035   {
3036     ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
3037     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3038     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
3039     -1,
3040     options_group_choice_mode,
3041     &group_element_info.choice_mode,
3042     NULL, "choice type:", NULL,         "type of group element choice"
3043   },
3044 };
3045
3046 static struct
3047 {
3048   int gadget_type_id;
3049   int x, y;
3050   int gadget_id;
3051   int gadget_id_align;
3052   int size;
3053   char *text;
3054   char *text_above, *text_left, *text_right, *infotext;
3055 } textbutton_info[ED_NUM_TEXTBUTTONS] =
3056 {
3057   // ---------- level and editor settings (tabs) ------------------------------
3058
3059   {
3060     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
3061     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
3062     GADGET_ID_LEVELCONFIG_LEVEL,        GADGET_ID_NONE,
3063     8,                                  "Level",
3064     NULL, NULL, NULL,                   "Configure level settings"
3065   },
3066   {
3067     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
3068     -1,                                 -1,
3069     GADGET_ID_LEVELCONFIG_LEVELSET,     GADGET_ID_LEVELCONFIG_LEVEL,
3070     8,                                  "Levelset",
3071     NULL, NULL, NULL,                   "Update this or create new level set"
3072   },
3073   {
3074     ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
3075     -1,                                 -1,
3076     GADGET_ID_LEVELCONFIG_EDITOR,       GADGET_ID_LEVELCONFIG_LEVELSET,
3077     8,                                  "Editor",
3078     NULL, NULL, NULL,                   "Configure editor settings"
3079   },
3080   {
3081     ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
3082     -1,                                 -1,
3083     GADGET_ID_LEVELCONFIG_ENGINE,       GADGET_ID_LEVELCONFIG_EDITOR,
3084     8,                                  "Engine",
3085     NULL, NULL, NULL,                   "Configure engine settings"
3086   },
3087
3088   // ---------- element settings (tabs) ---------------------------------------
3089
3090   {
3091     ED_TEXTBUTTON_ID_PROPERTIES_INFO,
3092     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
3093     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
3094     8,                                  "Info",
3095     NULL, NULL, NULL,                   "Show information about element"
3096   },
3097   {
3098     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
3099     -1,                                 -1,
3100     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
3101     8,                                  "Config",
3102     NULL, NULL, NULL,                   "Configure element properties"
3103   },
3104   {
3105     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
3106     -1,                                 -1,
3107     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
3108     8,                                  "Config 1",
3109     NULL, NULL, NULL,                   "Configure element properties, part 1"
3110   },
3111   {
3112     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
3113     -1,                                 -1,
3114     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
3115     8,                                  "Config 2",
3116     NULL, NULL, NULL,                   "Configure element properties, part 2"
3117   },
3118   {
3119     ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
3120     -1,                                 -1,
3121     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
3122     8,                                  "Change",
3123     NULL, NULL, NULL,                   "Configure custom element change pages"
3124   },
3125
3126   // ---------- level and editor settings (buttons) ---------------------------
3127
3128   {
3129     ED_TEXTBUTTON_ID_SAVE_LEVELSET,
3130     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
3131     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
3132     -1,                                 "Save",
3133     NULL, NULL, NULL,                   "Update or create level set"
3134   },
3135   {
3136     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
3137     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3138     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
3139     -1,                                 "Save",
3140     NULL, NULL,                         "this level as level template",
3141     "Save current settings as new template"
3142   },
3143
3144   // ---------- element settings (buttons) ------------------------------------
3145
3146   {
3147     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
3148     -1,                                 -1,
3149     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
3150     -1,                                 "Save",
3151     NULL, " ",                          "As Template",
3152     "Save current settings as new template"
3153   },
3154   {
3155     ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
3156     -1,                                 -1,
3157     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
3158     -1,                                 "New",
3159     NULL, NULL, NULL,                   "Add new change page"
3160   },
3161   {
3162     ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
3163     -1,                                 -1,
3164     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
3165     -1,                                 "Delete",
3166     NULL, NULL, NULL,                   "Delete current change page"
3167   },
3168 };
3169
3170 static struct
3171 {
3172   int gadget_type_id;
3173   int graphic;
3174   int x, y;
3175   int gadget_id;
3176   int gadget_id_align;
3177   char *text_left, *text_right, *infotext;
3178 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
3179 {
3180   {
3181     ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
3182     IMG_EDITOR_COUNTER_DOWN,
3183     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3184     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
3185     NULL, NULL,                         "select previous change page"
3186   },
3187   {
3188     ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
3189     IMG_EDITOR_COUNTER_UP,
3190     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3191     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
3192     NULL, "change page",                "select next change page"
3193   },
3194   {
3195     ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
3196     IMG_GFX_EDITOR_BUTTON_CP_COPY,
3197     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3198     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
3199     " ", NULL,                          "copy settings from this change page"
3200   },
3201   {
3202     ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
3203     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
3204     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3205     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
3206     NULL, NULL,                         "paste settings to this change page"
3207   },
3208 };
3209
3210 static struct
3211 {
3212   int x, y;
3213 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
3214
3215 static struct
3216 {
3217   int gadget_type_id;
3218   int graphic;
3219   int gadget_id;
3220   char *infotext;
3221 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
3222 {
3223   {
3224     ED_SCROLLBUTTON_ID_AREA_UP,
3225     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
3226     GADGET_ID_SCROLL_UP,
3227     "scroll level editing area up"
3228   },
3229   {
3230     ED_SCROLLBUTTON_ID_AREA_DOWN,
3231     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
3232     GADGET_ID_SCROLL_DOWN,
3233     "scroll level editing area down"
3234   },
3235   {
3236     ED_SCROLLBUTTON_ID_AREA_LEFT,
3237     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
3238     GADGET_ID_SCROLL_LEFT,
3239     "scroll level editing area left"
3240   },
3241   {
3242     ED_SCROLLBUTTON_ID_AREA_RIGHT,
3243     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
3244     GADGET_ID_SCROLL_RIGHT,
3245     "scroll level editing area right"
3246   },
3247   {
3248     ED_SCROLLBUTTON_ID_LIST_UP,
3249     IMG_EDITOR_PALETTE_SCROLL_UP,
3250     GADGET_ID_SCROLL_LIST_UP,
3251     "scroll element list up ('Page Up')"
3252   },
3253   {
3254     ED_SCROLLBUTTON_ID_LIST_DOWN,
3255     IMG_EDITOR_PALETTE_SCROLL_DOWN,
3256     GADGET_ID_SCROLL_LIST_DOWN,
3257     "scroll element list down ('Page Down')"
3258   },
3259 };
3260
3261 static struct
3262 {
3263   int x, y;
3264   int width, height;
3265   int wheel_x, wheel_y;
3266   int wheel_width, wheel_height;
3267 } scrollbar_pos[ED_NUM_SCROLLBARS];
3268
3269 static struct
3270 {
3271   int gadget_type_id;
3272   int graphic;
3273   int type;
3274   int gadget_id;
3275   char *infotext;
3276 } scrollbar_info[ED_NUM_SCROLLBARS] =
3277 {
3278   {
3279     ED_SCROLLBAR_ID_AREA_HORIZONTAL,
3280     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3281     GD_TYPE_SCROLLBAR_HORIZONTAL,
3282     GADGET_ID_SCROLL_HORIZONTAL,
3283     "scroll level editing area horizontally"
3284   },
3285   {
3286     ED_SCROLLBAR_ID_AREA_VERTICAL,
3287     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3288     GD_TYPE_SCROLLBAR_VERTICAL,
3289     GADGET_ID_SCROLL_VERTICAL,
3290     "scroll level editing area vertically"
3291   },
3292   {
3293     ED_SCROLLBAR_ID_LIST_VERTICAL,
3294     IMG_EDITOR_PALETTE_SCROLLBAR,
3295     GD_TYPE_SCROLLBAR_VERTICAL,
3296     GADGET_ID_SCROLL_LIST_VERTICAL,
3297     "scroll element list vertically"
3298   }
3299 };
3300
3301
3302 static struct
3303 {
3304   int gadget_type_id;
3305   int x, y;
3306   int gadget_id;
3307   int gadget_id_align;
3308   int radio_button_nr;
3309   int *value;
3310   int checked_value;
3311   char *text_left, *text_right, *infotext;
3312 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3313 {
3314   {
3315     ED_RADIOBUTTON_ID_PERCENTAGE,
3316     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3317     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3318     RADIO_NR_RANDOM_ELEMENTS,
3319     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3320     " ", "percentage",                  "use percentage for random elements"
3321   },
3322   {
3323     ED_RADIOBUTTON_ID_QUANTITY,
3324     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3325     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3326     RADIO_NR_RANDOM_ELEMENTS,
3327     &random_placement_method,           RANDOM_USE_QUANTITY,
3328     " ", "quantity",                    "use quantity for random elements"
3329   }
3330 };
3331
3332 static struct
3333 {
3334   int gadget_type_id;
3335   int x, y;
3336   int gadget_id;
3337   int gadget_id_align;
3338   boolean *value;
3339   char *text_above, *text_left, *text_right, *infotext;
3340 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3341 {
3342   // ---------- level and editor settings -------------------------------------
3343
3344   {
3345     ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
3346     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3347     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3348     &level.auto_count_gems,
3349     NULL, NULL,
3350     "automatically count gems needed",  "set counter to number of gems"
3351   },
3352   {
3353     ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
3354     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3355     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3356     &level.rate_time_over_score,
3357     NULL, NULL,
3358     "rate time/steps used over score",  "sort high scores by playing time/steps"
3359   },
3360   {
3361     ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
3362     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3363     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3364     &levelset_use_levelset_artwork,
3365     NULL, NULL,
3366     "use current custom artwork",       "use custom artwork of this level set"
3367   },
3368   {
3369     ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
3370     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3371     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3372     &levelset_copy_level_template,
3373     NULL, NULL,
3374     "copy current level template",      "copy level template of this level set"
3375   },
3376   {
3377     ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
3378     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3379     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3380     &random_placement_background_restricted,
3381     NULL, NULL,
3382     "restrict random placement to:",    "set random placement restriction"
3383   },
3384   {
3385     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
3386     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3387     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3388     &setup.editor.use_template_for_new_levels,
3389     "Template for new levels and CE/GE:", NULL,
3390     "use template for new levels",      "use template for level properties"
3391   },
3392   {
3393     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
3394     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3395     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3396     &level.use_custom_template,
3397     NULL, NULL,
3398     "use template for custom elements", "use template for custom properties"
3399   },
3400   {
3401     ED_CHECKBUTTON_ID_BD_INTERMISSION,
3402     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
3403     GADGET_ID_BD_INTERMISSION,          GADGET_ID_NONE,
3404     &level.bd_intermission,
3405     "Boulder Dash game engine settings:", NULL,
3406     "intermission",                     "level is an intermission level"
3407   },
3408   {
3409     ED_CHECKBUTTON_ID_BD_PAL_TIMING,
3410     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
3411     GADGET_ID_BD_PAL_TIMING,            GADGET_ID_NONE,
3412     &level.bd_pal_timing,
3413     NULL, NULL,
3414     "PAL timing",                       "use slower timer (like PAL C64)"
3415   },
3416   {
3417     ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
3418     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3419     GADGET_ID_BD_LINE_SHIFTING_BORDERS, GADGET_ID_NONE,
3420     &level.bd_line_shifting_borders,
3421     "Compatibility settings:", NULL,
3422     "line-shifting borders",            "use line-shifting wrap-around"
3423   },
3424   {
3425     ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
3426     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3427     GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW, GADGET_ID_NONE,
3428     &level.bd_scan_first_and_last_row,
3429     NULL, NULL,
3430     "scan first and last row",          "also process top/bottom border rows"
3431   },
3432   {
3433     ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
3434     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3435     GADGET_ID_BD_SHORT_EXPLOSIONS,      GADGET_ID_NONE,
3436     &level.bd_short_explosions,
3437     NULL, NULL,
3438     "short explosions",                 "use four game cycles for explosions"
3439   },
3440   {
3441     ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
3442     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(9),
3443     GADGET_ID_BD_GRAVITY_AFFECTS_ALL,   GADGET_ID_NONE,
3444     &level.bd_gravity_affects_all,
3445     NULL, NULL,
3446     "gravity change affects everything", "gravity affects all falling objects"
3447   },
3448
3449   // ---------- element settings: configure (various elements) ----------------
3450
3451   {
3452     ED_CHECKBUTTON_ID_STICK_ELEMENT,
3453     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3454     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3455     &stick_element_properties_window,
3456     NULL, NULL,
3457     "stick this screen to edit content","stick this screen to edit content"
3458   },
3459   {
3460     ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
3461     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3462     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3463     &level.em_slippery_gems,
3464     NULL, NULL,
3465     "slip down from certain flat walls","use EM/DC style slipping behaviour"
3466   },
3467   {
3468     ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
3469     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3470     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3471     &level.em_explodes_by_fire,
3472     NULL, NULL,
3473     "explodes with chain reaction",     "use R'n'D style explosion behaviour"
3474   },
3475   {
3476     ED_CHECKBUTTON_ID_USE_SPRING_BUG,
3477     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3478     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3479     &level.use_spring_bug,
3480     NULL, NULL,
3481     "use spring pushing bug",           "use odd spring pushing behaviour"
3482   },
3483   {
3484     ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
3485     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3486     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3487     &level.use_time_orb_bug,
3488     NULL, NULL,
3489     "use time orb bug",                 "use odd time orb behaviour"
3490   },
3491   {
3492     ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
3493     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3494     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3495     &level.use_life_bugs,
3496     NULL, NULL,
3497     "use buggy element behaviour",      "use odd (historic) element behaviour"
3498   },
3499   {
3500     ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
3501     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3502     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3503     &level.ball_random,
3504     NULL, NULL,
3505     "create single random element",     "only create one element from content"
3506   },
3507   {
3508     ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
3509     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3510     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3511     &level.ball_active_initial,
3512     NULL, NULL,
3513     "magic ball initially activated",   "activate magic ball after level start"
3514   },
3515   {
3516     ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
3517     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3518     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3519     &level.grow_into_diggable,
3520     NULL, NULL,
3521     "can grow into anything diggable",  "grow into more than just sand"
3522   },
3523   {
3524     ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
3525     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3526     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3527     &level.sb_fields_needed,
3528     NULL, NULL,
3529     "all fields need to be filled",     "require all SB fields to be solved"
3530   },
3531   {
3532     ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
3533     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3534     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3535     &level.sb_objects_needed,
3536     NULL, NULL,
3537     "all objects need to be placed",    "require all SB objects to be solved"
3538   },
3539   {
3540     ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
3541     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3542     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3543     &level.auto_exit_sokoban,
3544     NULL, NULL,
3545     "exit level if all tasks solved",   "automatically finish Sokoban levels"
3546   },
3547   {
3548     ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
3549     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3550     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3551     &level.solved_by_one_player,
3552     NULL, NULL,
3553     "only one player must enter exit",  "level solved by first player in exit"
3554   },
3555   {
3556     ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
3557     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3558     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3559     &level.finish_dig_collect,
3560     NULL, NULL,
3561     "CE action on finished dig/collect", "only finished dig/collect triggers CE"
3562   },
3563   {
3564     ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
3565     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3566     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3567     &level.keep_walkable_ce,
3568     NULL, NULL,
3569     "keep walkable CE changed to player", "keep CE changing to player if walkable"
3570   },
3571   {
3572     ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
3573     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3574     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3575     &level.continuous_snapping,
3576     NULL, NULL,
3577     "continuous snapping",              "use snapping without releasing key"
3578   },
3579   {
3580     ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
3581     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3582     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3583     &level.block_snap_field,
3584     NULL, NULL,
3585     "block snapped field when snapping", "use snapping delay to show animation"
3586   },
3587   {
3588     ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
3589     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3590     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3591     &level.block_last_field,
3592     NULL, NULL,
3593     "block last field when moving",     "player blocks last field when moving"
3594   },
3595   {
3596     ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
3597     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3598     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3599     &level.sp_block_last_field,
3600     NULL, NULL,
3601     "block last field when moving",     "player blocks last field when moving"
3602   },
3603   {
3604     ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
3605     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3606     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3607     &level.instant_relocation,
3608     NULL, NULL,
3609     "no scrolling when relocating",     "player gets relocated without delay"
3610   },
3611   {
3612     ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
3613     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3614     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3615     &level.shifted_relocation,
3616     NULL, NULL,
3617     "no centering when relocating",     "level not centered after relocation"
3618   },
3619   {
3620     ED_CHECKBUTTON_ID_LAZY_RELOCATION,
3621     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3622     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3623     &level.lazy_relocation,
3624     NULL, NULL,
3625     "only redraw off-screen relocation","no redraw if relocation target visible"
3626   },
3627   {
3628     ED_CHECKBUTTON_ID_USE_START_ELEMENT,
3629     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3630     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3631     &level.use_start_element[0],
3632     NULL, NULL,
3633     "use level start element:",        "start level at this element's position"
3634   },
3635   {
3636     ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
3637     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3638     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3639     &level.use_artwork_element[0],
3640     NULL, NULL,
3641     "use artwork from element:",        "use player artwork from other element"
3642   },
3643   {
3644     ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
3645     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3646     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3647     &level.use_explosion_element[0],
3648     NULL, NULL,
3649     "use explosion from element:",      "use explosion properties from element"
3650   },
3651   {
3652     ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
3653     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3654     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3655     &level.initial_player_gravity[0],
3656     NULL, NULL,
3657     "use initial gravity",              "set initial player gravity"
3658   },
3659   {
3660     ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
3661     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3662     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3663     &level.use_initial_inventory[0],
3664     NULL, NULL,
3665     "use initial inventory:",           "use collected elements on level start"
3666   },
3667   {
3668     ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
3669     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3670     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3671     &level.can_pass_to_walkable,
3672     NULL, NULL,
3673     "can pass to walkable element",     "player can pass to empty or walkable"
3674   },
3675   {
3676     ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
3677     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3678     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3679     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3680     NULL, NULL,
3681     "can fall into acid (with gravity)","player can fall into acid pool"
3682   },
3683   {
3684     ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
3685     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3686     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3687     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3688     NULL, NULL,
3689     "can move into acid",               "element can move into acid pool"
3690   },
3691   {
3692     ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
3693     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3694     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3695     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3696     NULL, NULL,
3697     "deadly when colliding with",       "element is deadly when hitting player"
3698   },
3699   {
3700     ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
3701     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3702     GADGET_ID_BD_DIAGONAL_MOVEMENTS,    GADGET_ID_NONE,
3703     &level.bd_diagonal_movements,
3704     NULL, NULL,
3705     "can move diagonally",              "player can move diagonally"
3706   },
3707   {
3708     ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
3709     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3710     GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE, GADGET_ID_NONE,
3711     &level.bd_topmost_player_active,
3712     NULL, NULL,
3713     "topmost player is active",         "use first player found on playfield"
3714   },
3715   {
3716     ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
3717     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3718     GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET, GADGET_ID_NONE,
3719     &level.bd_push_mega_rock_with_sweet,
3720     NULL, NULL,
3721     "mega rocks pushable with sweet",   "push mega rocks after eating sweet"
3722   },
3723   {
3724     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
3725     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3726     GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING, GADGET_ID_NONE,
3727     &level.bd_magic_wall_wait_hatching,
3728     NULL, NULL,
3729     "wait for player's birth",          "timer start waits for player's birth"
3730   },
3731   {
3732     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
3733     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3734     GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA, GADGET_ID_NONE,
3735     &level.bd_magic_wall_stops_amoeba,
3736     NULL, NULL,
3737     "turn amoeba to diamonds",          "activation changes amoeba to diamonds"
3738   },
3739   {
3740     ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
3741     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3742     GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING, GADGET_ID_NONE,
3743     &level.bd_amoeba_wait_for_hatching,
3744     NULL, NULL,
3745     "wait for player's birth",          "timer start waits for player's birth"
3746   },
3747   {
3748     ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
3749     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3750     GADGET_ID_BD_AMOEBA_START_IMMEDIATELY, GADGET_ID_NONE,
3751     &level.bd_amoeba_start_immediately,
3752     NULL, NULL,
3753     "start growing immediately",        "start slow growth time immediately"
3754   },
3755   {
3756     ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
3757     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3758     GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA, GADGET_ID_NONE,
3759     &level.bd_amoeba_2_explode_by_amoeba,
3760     NULL, NULL,
3761     "explodes if touched by amoeba",    "amoeba 2 explodes if touched by amoeba"
3762   },
3763   {
3764     ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
3765     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3766     GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS, GADGET_ID_NONE,
3767     &level.bd_voodoo_collects_diamonds,
3768     NULL, NULL,
3769     "can collect diamonds",             "can collect diamonds for the player"
3770   },
3771   {
3772     ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
3773     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3774     GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER, GADGET_ID_NONE,
3775     &level.bd_voodoo_hurt_kills_player,
3776     NULL, NULL,
3777     "player is killed if hurt",         "if hurt in any way, player is killed"
3778   },
3779   {
3780     ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
3781     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3782     GADGET_ID_BD_VOODOO_DIES_BY_ROCK,   GADGET_ID_NONE,
3783     &level.bd_voodoo_dies_by_rock,
3784     NULL, NULL,
3785     "killed by falling rock",           "can be killed by a falling rock"
3786   },
3787   {
3788     ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
3789     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3790     GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION, GADGET_ID_NONE,
3791     &level.bd_voodoo_vanish_by_explosion,
3792     NULL, NULL,
3793     "disappears in explosions",         "can be destroyed by explosions"
3794   },
3795   {
3796     ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
3797     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3798     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3799     &level.envelope[0].autowrap,
3800     NULL, NULL,
3801     "auto-wrap",                        "automatically wrap envelope text"
3802   },
3803   {
3804     ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
3805     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3806     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3807     &level.envelope[0].centered,
3808     NULL, " ",
3809     "centered",                         "automatically center envelope text"
3810   },
3811   {
3812     ED_CHECKBUTTON_ID_MM_LASER_RED,
3813     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3814     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3815     &level.mm_laser_red,
3816     "choose color components for laser:", NULL,
3817     "red",                              "use red color components in laser"
3818   },
3819   {
3820     ED_CHECKBUTTON_ID_MM_LASER_GREEN,
3821     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3822     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3823     &level.mm_laser_green,
3824     NULL, NULL,
3825     "green",                            "use green color components in laser"
3826   },
3827   {
3828     ED_CHECKBUTTON_ID_MM_LASER_BLUE,
3829     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3830     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3831     &level.mm_laser_blue,
3832     NULL, NULL,
3833     "blue",                             "use blue color components in laser"
3834   },
3835   {
3836     ED_CHECKBUTTON_ID_DF_LASER_RED,
3837     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3838     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3839     &level.df_laser_red,
3840     "choose color components for laser:", NULL,
3841     "red",                              "use red color components in laser"
3842   },
3843   {
3844     ED_CHECKBUTTON_ID_DF_LASER_GREEN,
3845     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3846     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3847     &level.df_laser_green,
3848     NULL, NULL,
3849     "green",                            "use green color components in laser"
3850   },
3851   {
3852     ED_CHECKBUTTON_ID_DF_LASER_BLUE,
3853     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3854     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3855     &level.df_laser_blue,
3856     NULL, NULL,
3857     "blue",                             "use blue color components in laser"
3858   },
3859   {
3860     ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
3861     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3862     GADGET_ID_ROTATE_MM_BALL_CONTENT,   GADGET_ID_NONE,
3863     &level.rotate_mm_ball_content,
3864     NULL, NULL,
3865     "randomly rotate created content",  "randomly rotate newly created content"
3866   },
3867   {
3868     ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
3869     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3870     GADGET_ID_EXPLODE_MM_BALL,          GADGET_ID_NONE,
3871     &level.explode_mm_ball,
3872     NULL, NULL,
3873     "explode ball instead of melting",  "use explosion to release ball content"
3874   },
3875
3876   // ---------- element settings: configure 1 (custom elements) ---------------
3877
3878   {
3879     ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
3880     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3881     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3882     &custom_element.use_gfx_element,
3883     NULL, NULL,
3884     "use graphic of element:",          "use existing element graphic"
3885   },
3886   {
3887     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
3888     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3889     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3890     &level.use_custom_template,
3891     NULL, NULL,
3892     "use template",                     "use template for custom properties"
3893   },
3894   {
3895     ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
3896     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3897     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3898     &custom_element_properties[EP_ACCESSIBLE],
3899     NULL, NULL,
3900     NULL,                               "player can walk to or pass this field"
3901   },
3902   {
3903     ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
3904     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3905     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3906     &custom_element_properties[EP_GRAVITY_REACHABLE],
3907     NULL, NULL,
3908     "reachable despite gravity",        "player can walk/dig despite gravity"
3909   },
3910   {
3911     ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
3912     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3913     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3914     &custom_element.use_last_ce_value,
3915     NULL, NULL,
3916     "use last CE value after change",   "use last CE value after change"
3917   },
3918   {
3919     ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
3920     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3921     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3922     &custom_element_properties[EP_WALK_TO_OBJECT],
3923     NULL, NULL,
3924     NULL,                               "player can dig/collect/push element"
3925   },
3926   {
3927     ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
3928     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3929     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3930     &custom_element_properties[EP_INDESTRUCTIBLE],
3931     NULL, NULL,
3932     "indestructible",                   "element is indestructible"
3933   },
3934
3935   // ---------- element settings: configure 2 (custom elements) ---------------
3936
3937   {
3938     ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
3939     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3940     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
3941     &custom_element_properties[EP_CAN_MOVE],
3942     NULL, NULL,
3943     NULL,                               "element can move with some pattern"
3944   },
3945   {
3946     ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
3947     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3948     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
3949     &custom_element_properties[EP_CAN_FALL],
3950     NULL, NULL,
3951     "can fall",                         "element can fall down"
3952   },
3953   {
3954     ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
3955     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
3956     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
3957     &custom_element_properties[EP_CAN_SMASH],
3958     NULL, " ",
3959     NULL,                               "element can smash other elements"
3960   },
3961   {
3962     ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
3963     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3964     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
3965     &custom_element_properties[EP_SLIPPERY],
3966     NULL, NULL,
3967     NULL,                               "other elements can fall down from it"
3968   },
3969   {
3970     ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
3971     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3972     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
3973     &custom_element_properties[EP_DEADLY],
3974     NULL, NULL,
3975     NULL,                               "element can kill the player"
3976   },
3977   {
3978     ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
3979     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3980     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
3981     &custom_element_properties[EP_CAN_EXPLODE],
3982     NULL, NULL,
3983     NULL,                               "element can explode"
3984   },
3985   {
3986     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
3987     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
3988     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
3989     &custom_element_properties[EP_EXPLODES_BY_FIRE],
3990     NULL, NULL,
3991     "by fire",                          "element can explode by fire/explosion"
3992   },
3993   {
3994     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
3995     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3996     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
3997     &custom_element_properties[EP_EXPLODES_SMASHED],
3998     NULL, " ",
3999     "smashed",                          "element can explode when smashed"
4000   },
4001   {
4002     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
4003     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
4004     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
4005     &custom_element_properties[EP_EXPLODES_IMPACT],
4006     NULL, " ",
4007     "impact",                           "element can explode on impact"
4008   },
4009
4010   // ---------- element settings: advanced (custom elements) ------------------
4011
4012   {
4013     ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
4014     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
4015     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
4016     &custom_element_change.can_change,
4017     NULL, NULL,
4018     "element changes to:",              "change element on specified condition"
4019   },
4020   {
4021     ED_CHECKBUTTON_ID_CHANGE_DELAY,
4022     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
4023     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
4024     &custom_element_change_events[CE_DELAY],
4025     NULL, NULL,
4026     NULL,                               "element changes after delay"
4027   },
4028   {
4029     ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
4030     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
4031     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
4032     &custom_element_change_events[CE_BY_DIRECT_ACTION],
4033     NULL, NULL,
4034     NULL,                               "element changes by direct action"
4035   },
4036   {
4037     ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
4038     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
4039     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
4040     &custom_element_change_events[CE_BY_OTHER_ACTION],
4041     NULL, NULL,
4042     NULL,                               "element changes by other element"
4043   },
4044   {
4045     ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
4046     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
4047     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
4048     &custom_element_change.explode,
4049     NULL, NULL,
4050     "explode instead of change",        "element explodes instead of change"
4051   },
4052   {
4053     ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
4054     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
4055     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
4056     &custom_element_change.use_target_content,
4057     NULL, NULL,
4058     "use extended change target:",      "element changes to more elements"
4059   },
4060   {
4061     ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
4062     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
4063     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
4064     &custom_element_change.only_if_complete,
4065     NULL, NULL,
4066     "replace all or nothing",           "only replace when all can be changed"
4067   },
4068   {
4069     ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
4070     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
4071     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
4072     &custom_element_change.use_random_replace,
4073     NULL, NULL,
4074     NULL,                               "use percentage for random replace"
4075   },
4076   {
4077     ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
4078     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
4079     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
4080     &custom_element_change.has_action,
4081     NULL, NULL,
4082     NULL,                               "execute action on specified condition"
4083   },
4084 };
4085
4086 static struct
4087 {
4088   int gadget_type_id;
4089   int x, y;
4090   int xoffset, yoffset;
4091   int gadget_id;
4092   int gadget_id_align;
4093   int *value;
4094   int area_xsize, area_ysize;
4095   char *text_left, *text_right, *text_above, *text_below, *infotext;
4096 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
4097 {
4098   // ---------- level playfield content ---------------------------------------
4099
4100   {
4101     ED_DRAWING_ID_DRAWING_LEVEL,
4102     0,                                  0,
4103     0,                                  0,
4104     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
4105     NULL,
4106     -1, -1,     // these values are not constant, but can change at runtime
4107     NULL, NULL, NULL, NULL,             NULL
4108   },
4109
4110   // ---------- yam yam content -----------------------------------------------
4111
4112   {
4113     ED_DRAWING_ID_YAMYAM_CONTENT_0,
4114     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4115     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
4116     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
4117     &level.yamyam_content[0].e[0][0],   3, 3,
4118     NULL, NULL, NULL, "1",              NULL
4119   },
4120   {
4121     ED_DRAWING_ID_YAMYAM_CONTENT_1,
4122     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4123     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
4124     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
4125     &level.yamyam_content[1].e[0][0],   3, 3,
4126     NULL, NULL, NULL, "2",              NULL
4127   },
4128   {
4129     ED_DRAWING_ID_YAMYAM_CONTENT_2,
4130     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4131     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
4132     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
4133     &level.yamyam_content[2].e[0][0],   3, 3,
4134     NULL, NULL, NULL, "3",              NULL
4135   },
4136   {
4137     ED_DRAWING_ID_YAMYAM_CONTENT_3,
4138     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4139     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
4140     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
4141     &level.yamyam_content[3].e[0][0],   3, 3,
4142     NULL, NULL, NULL, "4",              NULL
4143   },
4144   {
4145     ED_DRAWING_ID_YAMYAM_CONTENT_4,
4146     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4147     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
4148     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
4149     &level.yamyam_content[4].e[0][0],   3, 3,
4150     NULL, NULL, NULL, "5",              NULL
4151   },
4152   {
4153     ED_DRAWING_ID_YAMYAM_CONTENT_5,
4154     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4155     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
4156     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
4157     &level.yamyam_content[5].e[0][0],   3, 3,
4158     NULL, NULL, NULL, "6",              NULL
4159   },
4160   {
4161     ED_DRAWING_ID_YAMYAM_CONTENT_6,
4162     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4163     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
4164     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
4165     &level.yamyam_content[6].e[0][0],   3, 3,
4166     NULL, NULL, NULL, "7",              NULL
4167   },
4168   {
4169     ED_DRAWING_ID_YAMYAM_CONTENT_7,
4170     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4171     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
4172     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
4173     &level.yamyam_content[7].e[0][0],   3, 3,
4174     NULL, NULL, NULL, "8",              NULL
4175   },
4176
4177   // ---------- magic ball content --------------------------------------------
4178
4179   {
4180     ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
4181     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4182     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
4183     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
4184     &level.ball_content[0].e[0][0],     3, 3,
4185     NULL, NULL, NULL, "1",              NULL
4186   },
4187   {
4188     ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
4189     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4190     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
4191     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
4192     &level.ball_content[1].e[0][0],     3, 3,
4193     NULL, NULL, NULL, "2",              NULL
4194   },
4195   {
4196     ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
4197     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4198     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
4199     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
4200     &level.ball_content[2].e[0][0],     3, 3,
4201     NULL, NULL, NULL, "3",              NULL
4202   },
4203   {
4204     ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
4205     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4206     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
4207     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
4208     &level.ball_content[3].e[0][0],     3, 3,
4209     NULL, NULL, NULL, "4",              NULL
4210   },
4211   {
4212     ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
4213     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4214     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
4215     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
4216     &level.ball_content[4].e[0][0],     3, 3,
4217     NULL, NULL, NULL, "5",              NULL
4218   },
4219   {
4220     ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
4221     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4222     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
4223     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
4224     &level.ball_content[5].e[0][0],     3, 3,
4225     NULL, NULL, NULL, "6",              NULL
4226   },
4227   {
4228     ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
4229     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4230     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
4231     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
4232     &level.ball_content[6].e[0][0],     3, 3,
4233     NULL, NULL, NULL, "7",              NULL
4234   },
4235   {
4236     ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
4237     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4238     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
4239     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
4240     &level.ball_content[7].e[0][0],     3, 3,
4241     NULL, NULL, NULL, "8",              NULL
4242   },
4243
4244   // ---------- android content -----------------------------------------------
4245
4246   {
4247     ED_DRAWING_ID_ANDROID_CONTENT,
4248     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
4249     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4250     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
4251     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
4252     NULL, NULL, "elements:", NULL,      "elements android can clone"
4253   },
4254
4255   // ---------- amoeba content ------------------------------------------------
4256
4257   {
4258     ED_DRAWING_ID_AMOEBA_CONTENT,
4259     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
4260     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4261     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
4262     &level.amoeba_content,              1, 1,
4263     "content:", NULL, NULL, NULL,       "amoeba content"
4264   },
4265
4266   // ---------- BD snap element -----------------------------------------------
4267
4268   {
4269     ED_DRAWING_ID_BD_SNAP_ELEMENT,
4270     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(5),
4271     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4272     GADGET_ID_BD_SNAP_ELEMENT,          GADGET_ID_NONE,
4273     &level.bd_snap_element,             1, 1,
4274     "snap element:", NULL, NULL, NULL,  "element created when snapping"
4275   },
4276
4277   // ---------- BD amoeba content ---------------------------------------------
4278
4279   {
4280     ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
4281     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4282     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4283     GADGET_ID_BD_AMOEBA_CONTENT_TOO_BIG, GADGET_ID_NONE,
4284     &level.bd_amoeba_content_too_big,   1, 1,
4285     "if too big, changes to:", NULL, NULL, NULL,        "BD amoeba content if too big"
4286   },
4287   {
4288     ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
4289     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4290     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4291     GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED, GADGET_ID_NONE,
4292     &level.bd_amoeba_content_enclosed,  1, 1,
4293     "if enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba content if enclosed"
4294   },
4295
4296   // ---------- BD amoeba 2 content -------------------------------------------
4297
4298   {
4299     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
4300     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4301     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4302     GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG, GADGET_ID_NONE,
4303     &level.bd_amoeba_2_content_too_big, 1, 1,
4304     "if too big, changes to:", NULL, NULL, NULL,        "BD amoeba 2 content if too big"
4305   },
4306   {
4307     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
4308     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4309     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4310     GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED, GADGET_ID_NONE,
4311     &level.bd_amoeba_2_content_enclosed,        1, 1,
4312     "if enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba 2 content if enclosed"
4313   },
4314   {
4315     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
4316     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(10),
4317     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4318     GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING, GADGET_ID_NONE,
4319     &level.bd_amoeba_2_content_exploding,       1, 1,
4320     "if exploding, changes to:", NULL, NULL, NULL,      "BD amoeba 2 content if exploding"
4321   },
4322   {
4323     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
4324     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(11),
4325     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4326     GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,   GADGET_ID_NONE,
4327     &level.bd_amoeba_2_content_looks_like,      1, 1,
4328     "use graphic of element:", NULL, NULL, NULL,        "BD amoeba 2 looks like this element"
4329   },
4330
4331   // ---------- level start element -------------------------------------------
4332
4333   {
4334     ED_DRAWING_ID_START_ELEMENT,
4335     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
4336     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4337     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
4338     &level.start_element[0],            1, 1,
4339     NULL, NULL, NULL, NULL,             "level start element"
4340   },
4341
4342   // ---------- player artwork element ----------------------------------------
4343
4344   {
4345     ED_DRAWING_ID_ARTWORK_ELEMENT,
4346     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
4347     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4348     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
4349     &level.artwork_element[0],          1, 1,
4350     NULL, NULL, NULL, NULL,             "element for player artwork"
4351   },
4352
4353   // ---------- player explosion element --------------------------------------
4354
4355   {
4356     ED_DRAWING_ID_EXPLOSION_ELEMENT,
4357     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
4358     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4359     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
4360     &level.explosion_element[0],        1, 1,
4361     NULL, NULL, NULL, NULL,             "element for player explosion"
4362   },
4363
4364   // ---------- player initial inventory --------------------------------------
4365
4366   {
4367     ED_DRAWING_ID_INVENTORY_CONTENT,
4368     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4369     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4370     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
4371     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
4372     NULL, NULL, NULL, NULL,             "content for initial inventory"
4373   },
4374
4375   // ---------- gray ball content -----------------------------------------
4376
4377   {
4378     ED_DRAWING_ID_MM_BALL_CONTENT,
4379     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4380     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4381     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
4382     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
4383     "content:", NULL, NULL, NULL,       "content for gray ball"
4384   },
4385
4386   // ---------- element settings: configure 1 (custom elements) ---------------
4387
4388   // ---------- custom graphic ------------------------------------------------
4389
4390   {
4391     ED_DRAWING_ID_CUSTOM_GRAPHIC,
4392     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4393     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4394     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
4395     &custom_element.gfx_element_initial, 1, 1,
4396     NULL, NULL, NULL, NULL,             "custom graphic element"
4397   },
4398
4399   // ---------- element settings: configure 2 (custom elements) ---------------
4400
4401   // ---------- custom content (when exploding) -------------------------------
4402
4403   {
4404     ED_DRAWING_ID_CUSTOM_CONTENT,
4405     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
4406     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4407     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
4408     &custom_element.content.e[0][0],    3, 3,
4409     "content:", NULL, NULL, NULL,       NULL
4410   },
4411
4412   // ---------- custom enter and leave element (when moving) ------------------
4413
4414   {
4415     ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
4416     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
4417     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4418     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
4419     &custom_element.move_enter_element, 1, 1,
4420     "can dig:", " ", NULL, NULL,        "element that can be digged/collected"
4421   },
4422   {
4423     ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
4424     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
4425     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4426     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
4427     &custom_element.move_leave_element, 1, 1,
4428     NULL, NULL, NULL, NULL,             "element that will be left behind"
4429   },
4430
4431   // ---------- element settings: advanced (custom elements) ------------------
4432
4433   // ---------- custom change target ------------------------------------------
4434
4435   {
4436     ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
4437     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4438     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4439     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
4440     &custom_element_change.target_element, 1, 1,
4441     NULL, "after/when:", NULL, NULL,    "new target element after change"
4442   },
4443
4444   // ---------- custom change content (extended change target) ----------------
4445
4446   {
4447     ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
4448     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
4449     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4450     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
4451     &custom_element_change.target_content.e[0][0], 3, 3,
4452     NULL, NULL, NULL, NULL,             "new extended elements after change"
4453   },
4454
4455   // ---------- custom change trigger (element causing change) ----------------
4456
4457   {
4458     ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
4459     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
4460     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4461     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
4462     &custom_element_change.initial_trigger_element, 1, 1,
4463     NULL, NULL, NULL, NULL,             "other element triggering change"
4464   },
4465
4466   // ---------- custom change action (element used for action) ----------------
4467
4468   {
4469     ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
4470     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
4471     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4472     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
4473     &custom_element_change.action_element, 1, 1,
4474     NULL, NULL, NULL, NULL,             "element used as action parameter"
4475   },
4476
4477   // ---------- group element content -----------------------------------------
4478
4479   {
4480     ED_DRAWING_ID_GROUP_CONTENT,
4481     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4482     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4483     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
4484     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
4485     "content:", NULL, NULL, NULL,       NULL
4486   },
4487
4488   // ---------- random background (for random painting) -----------------------
4489
4490   {
4491     ED_DRAWING_ID_RANDOM_BACKGROUND,
4492     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
4493     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
4494     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
4495     &random_placement_background_element, 1, 1,
4496     NULL, NULL, NULL, NULL,             "random placement background"
4497   },
4498 };
4499
4500
4501 // ----------------------------------------------------------------------------
4502 // some internally used variables
4503 // ----------------------------------------------------------------------------
4504
4505 // maximal size of level editor drawing area
4506 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
4507
4508 // actual size of level editor drawing area
4509 static int ed_fieldx, ed_fieldy;
4510
4511 // actual position of level editor drawing area in level playfield
4512 static int level_xpos = -1, level_ypos = -1;
4513
4514 // actual tile size used to display playfield drawing area
4515 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
4516 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
4517
4518 #define IN_ED_FIELD(x, y)       IN_FIELD(x, y, ed_fieldx, ed_fieldy)
4519
4520 // drawing elements on the three mouse buttons
4521 static int new_element1 = EL_WALL;
4522 static int new_element2 = EL_EMPTY;
4523 static int new_element3 = EL_SAND;
4524
4525 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
4526 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
4527                                 (button) == 2 ? new_element2 : \
4528                                 (button) == 3 ? new_element3 : EL_EMPTY)
4529
4530 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
4531
4532 static int use_permanent_palette = TRUE;
4533
4534 #define PX              (use_permanent_palette ? DX : SX)
4535 #define PY              (use_permanent_palette ? DY : SY)
4536 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
4537 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
4538
4539 // forward declaration for internal use
4540 static void CopyBrushToCursor(int, int);
4541 static void DeleteBrushFromCursor(void);
4542 static void ModifyEditorCounterValue(int, int);
4543 static void ModifyEditorCounterLimits(int, int, int);
4544 static void ModifyEditorSelectboxValue(int, int);
4545 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
4546 static void ModifyEditorDrawingArea(int, int, int);
4547 static void ModifyEditorElementList(void);
4548 static void AdjustElementListScrollbar(void);
4549 static void RedrawDrawingElements(void);
4550 static void DrawDrawingWindowExt(boolean);
4551 static void DrawDrawingWindow(void);
4552 static void DrawLevelConfigWindow(void);
4553 static void DrawPropertiesWindow(void);
4554 static void DrawPaletteWindow(void);
4555 static void UpdateCustomElementGraphicGadgets(void);
4556 static boolean checkPropertiesConfig(int);
4557 static void SetAutomaticNumberOfGemsNeeded(void);
4558 static void ClearEditorGadgetInfoText(void);
4559 static void CopyLevelToUndoBuffer(int);
4560 static void HandleDrawingAreas(struct GadgetInfo *);
4561 static void HandleCounterButtons(struct GadgetInfo *);
4562 static void HandleTextInputGadgets(struct GadgetInfo *);
4563 static void HandleTextAreaGadgets(struct GadgetInfo *);
4564 static void HandleSelectboxGadgets(struct GadgetInfo *);
4565 static void HandleTextbuttonGadgets(struct GadgetInfo *);
4566 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
4567 static void HandleRadiobuttons(struct GadgetInfo *);
4568 static void HandleCheckbuttons(struct GadgetInfo *);
4569 static void HandleControlButtons(struct GadgetInfo *);
4570 static void HandleDrawingAreaInfo(struct GadgetInfo *);
4571 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
4572 static boolean AskToCopyAndModifyLevelTemplate(void);
4573 static boolean getDrawModeHiRes(void);
4574 static int getTabulatorBarWidth(void);
4575 static int getTabulatorBarHeight(void);
4576 static Pixel getTabulatorBarColor(void);
4577 static int numHiresTiles(int);
4578
4579 static int num_editor_gadgets = 0;      // dynamically determined
4580
4581 static struct GadgetInfo **level_editor_gadget = NULL;
4582 static int *right_gadget_border = NULL;
4583
4584 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
4585 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
4586 static boolean draw_with_brush = FALSE;
4587 static int properties_element = 0;
4588
4589 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4590 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4591 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4592 static int undo_buffer_position = 0;
4593 static int undo_buffer_steps = 0;
4594 static int redo_buffer_steps = 0;
4595
4596 static int edit_mode;
4597 static int edit_mode_levelconfig;
4598 static int edit_mode_properties;
4599
4600 static int element_shift = 0;
4601
4602 static int editor_el_players[] =
4603 {
4604   EL_PLAYER_1,
4605   EL_PLAYER_2,
4606   EL_PLAYER_3,
4607   EL_PLAYER_4
4608 };
4609 static int *editor_el_players_ptr = editor_el_players;
4610 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
4611
4612 static int editor_hl_boulderdash[] =
4613 {
4614   EL_INTERNAL_CASCADE_BD_ACTIVE,
4615   EL_CHAR('B'),
4616   EL_CHAR('D'),
4617   EL_EMPTY,
4618 };
4619
4620 static int editor_el_boulderdash[] =
4621 {
4622   EL_EMPTY,
4623   EL_SAND,
4624   EL_BD_ROCK,
4625   EL_BD_DIAMOND,
4626
4627   EL_STEELWALL,
4628   EL_BD_WALL,
4629   EL_BD_EXPANDABLE_WALL,
4630   EL_BD_MAGIC_WALL,
4631
4632   EL_BD_AMOEBA,
4633   EL_BD_BUTTERFLY_UP,
4634   EL_BD_FIREFLY_UP,
4635   EL_EXIT_CLOSED,
4636
4637   EL_BD_BUTTERFLY_LEFT,
4638   EL_BD_FIREFLY_LEFT,
4639   EL_BD_BUTTERFLY_RIGHT,
4640   EL_BD_FIREFLY_RIGHT,
4641
4642   EL_EMPTY,
4643   EL_BD_BUTTERFLY_DOWN,
4644   EL_BD_FIREFLY_DOWN,
4645   EL_EXIT_OPEN,
4646 };
4647 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4648 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4649 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4650 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4651
4652 static int editor_hl_boulderdash_native[] =
4653 {
4654   EL_INTERNAL_CASCADE_BD_NATIVE_ACTIVE,
4655   EL_CHAR('B'),
4656   EL_CHAR('D'),
4657   EL_EMPTY,
4658 };
4659
4660 static int editor_el_boulderdash_native[] =
4661 {
4662   EL_EMPTY,
4663   EL_BD_SAND,
4664   EL_BD_ROCK,
4665   EL_BD_DIAMOND,
4666
4667   EL_BD_STEELWALL,
4668   EL_BD_WALL,
4669   EL_BD_SAND_2,
4670   EL_BD_MAGIC_WALL,
4671
4672   EL_BD_AMOEBA,
4673   EL_BD_BUTTERFLY_UP,
4674   EL_BD_FIREFLY_UP,
4675   EL_BD_EXIT_CLOSED,
4676
4677   EL_BD_BUTTERFLY_LEFT,
4678   EL_BD_FIREFLY_LEFT,
4679   EL_BD_BUTTERFLY_RIGHT,
4680   EL_BD_FIREFLY_RIGHT,
4681
4682   EL_BD_INBOX,
4683   EL_BD_BUTTERFLY_DOWN,
4684   EL_BD_FIREFLY_DOWN,
4685   EL_BD_EXIT_OPEN,
4686
4687   EL_BD_AMOEBA_2,
4688   EL_BD_BUTTERFLY_2_UP,
4689   EL_BD_FIREFLY_2_UP,
4690   EL_BD_SLIME,
4691
4692   EL_BD_BUTTERFLY_2_LEFT,
4693   EL_BD_FIREFLY_2_LEFT,
4694   EL_BD_BUTTERFLY_2_RIGHT,
4695   EL_BD_FIREFLY_2_RIGHT,
4696
4697   EL_BD_BOMB,
4698   EL_BD_BUTTERFLY_2_DOWN,
4699   EL_BD_FIREFLY_2_DOWN,
4700   EL_BD_FLYING_DIAMOND,
4701
4702   EL_BD_NITRO_PACK,
4703   EL_BD_DRAGONFLY_UP,
4704   EL_BD_STONEFLY_UP,
4705   EL_BD_DIAMOND_GLUED,
4706
4707   EL_BD_DRAGONFLY_LEFT,
4708   EL_BD_STONEFLY_LEFT,
4709   EL_BD_DRAGONFLY_RIGHT,
4710   EL_BD_STONEFLY_RIGHT,
4711
4712   EL_BD_NUT,
4713   EL_BD_DRAGONFLY_DOWN,
4714   EL_BD_STONEFLY_DOWN,
4715   EL_EMPTY,
4716
4717   EL_BD_BITER_SWITCH_1,
4718   EL_BD_BITER_UP,
4719   EL_BD_COW_UP,
4720   EL_EMPTY,
4721
4722   EL_BD_BITER_LEFT,
4723   EL_BD_COW_LEFT,
4724   EL_BD_BITER_RIGHT,
4725   EL_BD_COW_RIGHT,
4726
4727   EL_BD_VOODOO_DOLL,
4728   EL_BD_BITER_DOWN,
4729   EL_BD_COW_DOWN,
4730   EL_BD_GHOST,
4731
4732   EL_BD_SAND_GLUED,
4733   EL_BD_SAND_BALL,
4734   EL_BD_SAND_LOOSE,
4735   EL_BD_WALL_NON_SLOPED,
4736
4737   EL_BD_SAND_SLOPED_UP_LEFT,
4738   EL_BD_SAND_SLOPED_UP_RIGHT,
4739   EL_BD_WALL_SLOPED_UP_LEFT,
4740   EL_BD_WALL_SLOPED_UP_RIGHT,
4741
4742   EL_BD_SAND_SLOPED_DOWN_LEFT,
4743   EL_BD_SAND_SLOPED_DOWN_RIGHT,
4744   EL_BD_WALL_SLOPED_DOWN_LEFT,
4745   EL_BD_WALL_SLOPED_DOWN_RIGHT,
4746
4747   EL_BD_FLYING_ROCK,
4748   EL_BD_ROCK_GLUED,
4749   EL_BD_STEELWALL_SLOPED_UP_LEFT,
4750   EL_BD_STEELWALL_SLOPED_UP_RIGHT,
4751
4752   EL_BD_WAITING_ROCK,
4753   EL_BD_CHASING_ROCK,
4754   EL_BD_STEELWALL_SLOPED_DOWN_LEFT,
4755   EL_BD_STEELWALL_SLOPED_DOWN_RIGHT,
4756
4757   EL_BD_MEGA_ROCK,
4758   EL_BD_SWEET,
4759   EL_BD_INVISIBLE_EXIT_CLOSED,
4760   EL_BD_INVISIBLE_EXIT_OPEN,
4761
4762   EL_BD_STEELWALL_EXPLODABLE,
4763   EL_BD_STEELWALL_DIGGABLE,
4764   EL_BD_WALL_DIGGABLE,
4765   EL_BD_FALLING_WALL,
4766
4767   EL_BD_EXPANDABLE_WALL_HORIZONTAL,
4768   EL_BD_EXPANDABLE_WALL_VERTICAL,
4769   EL_BD_EXPANDABLE_WALL_ANY,
4770   EL_BD_EXPANDABLE_WALL_SWITCH_HORIZONTAL,
4771
4772   EL_BD_EXPANDABLE_STEELWALL_HORIZONTAL,
4773   EL_BD_EXPANDABLE_STEELWALL_VERTICAL,
4774   EL_BD_EXPANDABLE_STEELWALL_ANY,
4775   EL_BD_CREATURE_SWITCH,
4776
4777   EL_BD_BLADDER,
4778   EL_BD_BLADDER_SPENDER,
4779   EL_BD_REPLICATOR,
4780   EL_BD_REPLICATOR_SWITCH,
4781
4782   EL_BD_CONVEYOR_LEFT,
4783   EL_BD_CONVEYOR_RIGHT,
4784   EL_BD_CONVEYOR_SWITCH,
4785   EL_BD_CONVEYOR_DIR_SWITCH_RIGHT,
4786
4787   EL_BD_CLOCK,
4788   EL_BD_TIME_PENALTY,
4789   EL_BD_GRAVESTONE,
4790   EL_BD_SKELETON,
4791
4792   EL_BD_WATER,
4793   EL_BD_ACID,
4794   EL_BD_LAVA,
4795   EL_BD_BOX,
4796
4797   EL_BD_GATE_1,
4798   EL_BD_GATE_2,
4799   EL_BD_GATE_3,
4800   EL_BD_TRAPPED_DIAMOND,
4801
4802   EL_BD_KEY_1,
4803   EL_BD_KEY_2,
4804   EL_BD_KEY_3,
4805   EL_BD_DIAMOND_KEY,
4806
4807   EL_BD_WALL_KEY_1,
4808   EL_BD_WALL_KEY_2,
4809   EL_BD_WALL_KEY_3,
4810   EL_BD_WALL_DIAMOND,
4811
4812   EL_BD_GRAVITY_SWITCH,
4813   EL_BD_PNEUMATIC_HAMMER,
4814   EL_BD_TELEPORTER,
4815   EL_BD_POT,
4816
4817   EL_BD_PLAYER,
4818   EL_BD_PLAYER_WITH_BOMB,
4819   EL_BD_PLAYER_GLUED,
4820   EL_BD_PLAYER_STIRRING,
4821 };
4822 static int *editor_hl_boulderdash_native_ptr = editor_hl_boulderdash_native;
4823 static int *editor_el_boulderdash_native_ptr = editor_el_boulderdash_native;
4824 static int num_editor_hl_boulderdash_native = ARRAY_SIZE(editor_hl_boulderdash_native);
4825 static int num_editor_el_boulderdash_native = ARRAY_SIZE(editor_el_boulderdash_native);
4826
4827 static int editor_hl_emerald_mine[] =
4828 {
4829   EL_INTERNAL_CASCADE_EM_ACTIVE,
4830   EL_CHAR('E'),
4831   EL_CHAR('M'),
4832   EL_EMPTY,
4833 };
4834
4835 static int editor_el_emerald_mine[] =
4836 {
4837   EL_SAND,
4838   EL_ROCK,
4839   EL_QUICKSAND_EMPTY,
4840   EL_QUICKSAND_FULL,
4841
4842   EL_STEELWALL,
4843   EL_WALL,
4844   EL_WALL_SLIPPERY,
4845   EL_MAGIC_WALL,
4846
4847   EL_EMERALD,
4848   EL_DIAMOND,
4849   EL_NUT,
4850   EL_BOMB,
4851
4852   EL_EM_DYNAMITE,
4853   EL_EM_DYNAMITE_ACTIVE,
4854   EL_EM_EXIT_CLOSED,
4855   EL_EM_EXIT_OPEN,
4856
4857   EL_YAMYAM_UP,
4858   EL_BUG_UP,
4859   EL_SPACESHIP_UP,
4860   EL_ROBOT,
4861
4862   EL_BUG_LEFT,
4863   EL_SPACESHIP_LEFT,
4864   EL_BUG_RIGHT,
4865   EL_SPACESHIP_RIGHT,
4866
4867   EL_ROBOT_WHEEL,
4868   EL_BUG_DOWN,
4869   EL_SPACESHIP_DOWN,
4870   EL_INVISIBLE_WALL,
4871
4872   EL_ACID_POOL_TOPLEFT,
4873   EL_ACID,
4874   EL_ACID_POOL_TOPRIGHT,
4875   EL_AMOEBA_DROP,
4876
4877   EL_ACID_POOL_BOTTOMLEFT,
4878   EL_ACID_POOL_BOTTOM,
4879   EL_ACID_POOL_BOTTOMRIGHT,
4880   EL_AMOEBA_WET,
4881
4882   EL_EM_KEY_1,
4883   EL_EM_KEY_2,
4884   EL_EM_KEY_3,
4885   EL_EM_KEY_4,
4886
4887   EL_EM_GATE_1,
4888   EL_EM_GATE_2,
4889   EL_EM_GATE_3,
4890   EL_EM_GATE_4,
4891
4892   EL_EM_GATE_1_GRAY,
4893   EL_EM_GATE_2_GRAY,
4894   EL_EM_GATE_3_GRAY,
4895   EL_EM_GATE_4_GRAY,
4896 };
4897 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
4898 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
4899 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
4900 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
4901
4902 static int editor_hl_emerald_mine_club[] =
4903 {
4904   EL_INTERNAL_CASCADE_EMC_ACTIVE,
4905   EL_CHAR('E'),
4906   EL_CHAR('M'),
4907   EL_CHAR('C'),
4908 };
4909
4910 static int editor_el_emerald_mine_club[] =
4911 {
4912   EL_EMC_KEY_5,
4913   EL_EMC_KEY_6,
4914   EL_EMC_KEY_7,
4915   EL_EMC_KEY_8,
4916
4917   EL_EMC_GATE_5,
4918   EL_EMC_GATE_6,
4919   EL_EMC_GATE_7,
4920   EL_EMC_GATE_8,
4921
4922   EL_EMC_GATE_5_GRAY,
4923   EL_EMC_GATE_6_GRAY,
4924   EL_EMC_GATE_7_GRAY,
4925   EL_EMC_GATE_8_GRAY,
4926
4927   EL_EMC_STEELWALL_1,
4928   EL_EMC_STEELWALL_2,
4929   EL_EMC_STEELWALL_3,
4930   EL_EMC_STEELWALL_4,
4931
4932   EL_EMC_WALL_13,
4933   EL_EMC_WALL_14,
4934   EL_EMC_WALL_15,
4935   EL_EMC_WALL_16,
4936
4937   EL_EMC_WALL_SLIPPERY_1,
4938   EL_EMC_WALL_SLIPPERY_2,
4939   EL_EMC_WALL_SLIPPERY_3,
4940   EL_EMC_WALL_SLIPPERY_4,
4941
4942   EL_EMC_WALL_1,
4943   EL_EMC_WALL_2,
4944   EL_EMC_WALL_3,
4945   EL_EMC_WALL_4,
4946
4947   EL_EMC_WALL_5,
4948   EL_EMC_WALL_6,
4949   EL_EMC_WALL_7,
4950   EL_EMC_WALL_8,
4951
4952   EL_EMC_WALL_9,
4953   EL_EMC_WALL_10,
4954   EL_EMC_WALL_11,
4955   EL_EMC_WALL_12,
4956
4957   EL_EMC_GRASS,
4958   EL_EMC_FAKE_GRASS,
4959   EL_EMC_PLANT,
4960   EL_EMC_DRIPPER,
4961
4962   EL_EMC_MAGIC_BALL,
4963   EL_EMC_MAGIC_BALL_SWITCH,
4964   EL_EMC_LENSES,
4965   EL_EMC_MAGNIFIER,
4966
4967   EL_SPRING_LEFT,
4968   EL_SPRING,
4969   EL_SPRING_RIGHT,
4970   EL_EMC_SPRING_BUMPER,
4971
4972   EL_BALLOON,
4973   EL_YAMYAM_UP,
4974   EL_BALLOON_SWITCH_UP,
4975   EL_BALLOON_SWITCH_ANY,
4976
4977   EL_YAMYAM_LEFT,
4978   EL_BALLOON_SWITCH_LEFT,
4979   EL_YAMYAM_RIGHT,
4980   EL_BALLOON_SWITCH_RIGHT,
4981
4982   EL_EMC_ANDROID,
4983   EL_YAMYAM_DOWN,
4984   EL_BALLOON_SWITCH_DOWN,
4985   EL_BALLOON_SWITCH_NONE,
4986 };
4987 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
4988 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
4989 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
4990 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
4991
4992 static int editor_hl_rnd[] =
4993 {
4994   EL_INTERNAL_CASCADE_RND_ACTIVE,
4995   EL_CHAR('R'),
4996   EL_CHAR('N'),
4997   EL_CHAR('D'),
4998 };
4999
5000 static int editor_el_rnd[] =
5001 {
5002   EL_DYNAMITE,                  // RND
5003   EL_DYNAMITE_ACTIVE,           // RND
5004   EL_EMPTY,
5005   EL_EMPTY,
5006
5007   EL_KEY_1,
5008   EL_KEY_2,
5009   EL_KEY_3,
5010   EL_KEY_4,
5011
5012   EL_GATE_1,
5013   EL_GATE_2,
5014   EL_GATE_3,
5015   EL_GATE_4,
5016
5017   EL_GATE_1_GRAY,
5018   EL_GATE_2_GRAY,
5019   EL_GATE_3_GRAY,
5020   EL_GATE_4_GRAY,
5021
5022   EL_ARROW_LEFT,
5023   EL_ARROW_RIGHT,
5024   EL_ARROW_UP,
5025   EL_ARROW_DOWN,
5026
5027   EL_AMOEBA_DEAD,
5028   EL_AMOEBA_DRY,
5029   EL_AMOEBA_FULL,
5030   EL_GAME_OF_LIFE,
5031
5032   EL_EMERALD_YELLOW,
5033   EL_EMERALD_RED,
5034   EL_EMERALD_PURPLE,
5035   EL_BIOMAZE,
5036
5037   EL_WALL_EMERALD_YELLOW,
5038   EL_WALL_EMERALD_RED,
5039   EL_WALL_EMERALD_PURPLE,
5040   EL_WALL_BD_DIAMOND,
5041
5042   EL_SPEED_PILL,
5043   EL_PACMAN_UP,
5044   EL_TIME_ORB_FULL,
5045   EL_TIME_ORB_EMPTY,
5046
5047   EL_PACMAN_LEFT,
5048   EL_DARK_YAMYAM,
5049   EL_PACMAN_RIGHT,
5050   EL_YAMYAM,                    // RND
5051
5052   EL_BLACK_ORB,
5053   EL_PACMAN_DOWN,
5054   EL_LAMP,
5055   EL_LAMP_ACTIVE,
5056
5057   EL_DYNABOMB_INCREASE_NUMBER,
5058   EL_DYNABOMB_INCREASE_SIZE,
5059   EL_DYNABOMB_INCREASE_POWER,
5060   EL_STONEBLOCK,
5061
5062   EL_MOLE,
5063   EL_PENGUIN,
5064   EL_PIG,
5065   EL_DRAGON,
5066
5067   EL_BUG,
5068   EL_MOLE_UP,
5069   EL_BD_BUTTERFLY,
5070   EL_BD_FIREFLY,
5071
5072   EL_MOLE_LEFT,
5073   EL_SATELLITE,
5074   EL_MOLE_RIGHT,
5075   EL_PACMAN,
5076
5077   EL_SPACESHIP,
5078   EL_MOLE_DOWN,
5079   EL_INVISIBLE_STEELWALL,
5080   EL_INVISIBLE_WALL,
5081
5082   EL_EXPANDABLE_WALL,
5083   EL_EXPANDABLE_WALL_HORIZONTAL,
5084   EL_EXPANDABLE_WALL_VERTICAL,
5085   EL_EXPANDABLE_WALL_ANY,
5086 };
5087 static int *editor_hl_rnd_ptr = editor_hl_rnd;
5088 static int *editor_el_rnd_ptr = editor_el_rnd;
5089 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
5090 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
5091
5092 static int editor_hl_sokoban[] =
5093 {
5094   EL_INTERNAL_CASCADE_SB_ACTIVE,
5095   EL_CHAR('S'),
5096   EL_CHAR('B'),
5097   EL_EMPTY,
5098 };
5099
5100 static int editor_el_sokoban[] =
5101 {
5102   EL_SOKOBAN_OBJECT,
5103   EL_SOKOBAN_FIELD_EMPTY,
5104   EL_SOKOBAN_FIELD_FULL,
5105   EL_SOKOBAN_FIELD_PLAYER,
5106 };
5107 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
5108 static int *editor_el_sokoban_ptr = editor_el_sokoban;
5109 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
5110 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
5111
5112 static int editor_hl_supaplex[] =
5113 {
5114   EL_INTERNAL_CASCADE_SP_ACTIVE,
5115   EL_CHAR('S'),
5116   EL_CHAR('P'),
5117   EL_EMPTY,
5118 };
5119
5120 static int editor_el_supaplex[] =
5121 {
5122   EL_SP_MURPHY,
5123   EL_EMPTY,
5124   EL_SP_BASE,
5125   EL_SP_BUGGY_BASE,
5126
5127   EL_SP_INFOTRON,
5128   EL_SP_ZONK,
5129   EL_SP_SNIKSNAK,
5130   EL_SP_ELECTRON,
5131
5132   EL_SP_DISK_RED,
5133   EL_SP_DISK_ORANGE,
5134   EL_SP_DISK_YELLOW,
5135   EL_SP_TERMINAL,
5136
5137   EL_SP_EXIT_CLOSED,
5138   EL_SP_PORT_HORIZONTAL,
5139   EL_SP_PORT_VERTICAL,
5140   EL_SP_PORT_ANY,
5141
5142   EL_SP_PORT_LEFT,
5143   EL_SP_PORT_RIGHT,
5144   EL_SP_PORT_UP,
5145   EL_SP_PORT_DOWN,
5146
5147   EL_SP_GRAVITY_PORT_LEFT,
5148   EL_SP_GRAVITY_PORT_RIGHT,
5149   EL_SP_GRAVITY_PORT_UP,
5150   EL_SP_GRAVITY_PORT_DOWN,
5151
5152   EL_SP_GRAVITY_ON_PORT_LEFT,
5153   EL_SP_GRAVITY_ON_PORT_RIGHT,
5154   EL_SP_GRAVITY_ON_PORT_UP,
5155   EL_SP_GRAVITY_ON_PORT_DOWN,
5156
5157   EL_SP_GRAVITY_OFF_PORT_LEFT,
5158   EL_SP_GRAVITY_OFF_PORT_RIGHT,
5159   EL_SP_GRAVITY_OFF_PORT_UP,
5160   EL_SP_GRAVITY_OFF_PORT_DOWN,
5161
5162   EL_SP_HARDWARE_GRAY,
5163   EL_SP_HARDWARE_GREEN,
5164   EL_SP_HARDWARE_BLUE,
5165   EL_SP_HARDWARE_RED,
5166
5167   EL_SP_HARDWARE_BASE_1,
5168   EL_SP_HARDWARE_BASE_2,
5169   EL_SP_HARDWARE_BASE_3,
5170   EL_SP_HARDWARE_BASE_4,
5171
5172   EL_SP_HARDWARE_BASE_5,
5173   EL_SP_HARDWARE_BASE_6,
5174   EL_SP_HARDWARE_YELLOW,
5175   EL_SP_CHIP_TOP,
5176
5177   EL_SP_CHIP_SINGLE,
5178   EL_SP_CHIP_LEFT,
5179   EL_SP_CHIP_RIGHT,
5180   EL_SP_CHIP_BOTTOM,
5181 };
5182 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
5183 static int *editor_el_supaplex_ptr = editor_el_supaplex;
5184 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
5185 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
5186
5187 static int editor_hl_diamond_caves[] =
5188 {
5189   EL_INTERNAL_CASCADE_DC_ACTIVE,
5190   EL_CHAR('D'),
5191   EL_CHAR('C'),
5192   EL_CHAR('2'),
5193 };
5194
5195 static int editor_el_diamond_caves[] =
5196 {
5197   EL_EM_STEEL_EXIT_CLOSED,      // DC2
5198   EL_EM_STEEL_EXIT_OPEN,        // DC2
5199   EL_WALL_EMERALD,              // DC2
5200   EL_WALL_DIAMOND,              // DC2
5201
5202   EL_PEARL,
5203   EL_CRYSTAL,
5204   EL_WALL_PEARL,
5205   EL_WALL_CRYSTAL,
5206
5207   EL_CONVEYOR_BELT_1_LEFT,
5208   EL_CONVEYOR_BELT_1_MIDDLE,
5209   EL_CONVEYOR_BELT_1_RIGHT,
5210   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
5211
5212   EL_CONVEYOR_BELT_2_LEFT,
5213   EL_CONVEYOR_BELT_2_MIDDLE,
5214   EL_CONVEYOR_BELT_2_RIGHT,
5215   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
5216
5217   EL_CONVEYOR_BELT_3_LEFT,
5218   EL_CONVEYOR_BELT_3_MIDDLE,
5219   EL_CONVEYOR_BELT_3_RIGHT,
5220   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
5221
5222   EL_CONVEYOR_BELT_4_LEFT,
5223   EL_CONVEYOR_BELT_4_MIDDLE,
5224   EL_CONVEYOR_BELT_4_RIGHT,
5225   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
5226
5227   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
5228   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
5229   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
5230   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
5231
5232   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
5233   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
5234   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
5235   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
5236
5237   EL_TIMEGATE_CLOSED,
5238   EL_TIMEGATE_OPEN,
5239   EL_TIMEGATE_SWITCH,
5240   EL_DC_TIMEGATE_SWITCH,
5241
5242   EL_SWITCHGATE_CLOSED,
5243   EL_SWITCHGATE_OPEN,
5244   EL_SWITCHGATE_SWITCH_UP,
5245   EL_SWITCHGATE_SWITCH_DOWN,
5246
5247   EL_LIGHT_SWITCH,
5248   EL_LIGHT_SWITCH_ACTIVE,
5249   EL_DC_SWITCHGATE_SWITCH_UP,
5250   EL_DC_SWITCHGATE_SWITCH_DOWN,
5251
5252   EL_STEEL_EXIT_CLOSED,
5253   EL_STEEL_EXIT_OPEN,
5254   EL_STEELWALL_SLIPPERY,
5255   EL_INVISIBLE_SAND,
5256
5257   EL_QUICKSAND_FAST_EMPTY,
5258   EL_QUICKSAND_FAST_FULL,
5259   EL_LANDMINE,
5260   EL_DC_LANDMINE,
5261
5262   EL_SHIELD_NORMAL,
5263   EL_SHIELD_DEADLY,
5264   EL_EXTRA_TIME,
5265   EL_DC_MAGIC_WALL,
5266
5267   EL_ENVELOPE_1,
5268   EL_ENVELOPE_2,
5269   EL_ENVELOPE_3,
5270   EL_ENVELOPE_4,
5271
5272   EL_SIGN_RADIOACTIVITY,
5273   EL_SIGN_WHEELCHAIR,
5274   EL_SIGN_PARKING,
5275   EL_SIGN_NO_ENTRY,
5276
5277   EL_SIGN_GIVE_WAY,
5278   EL_SIGN_ENTRY_FORBIDDEN,
5279   EL_SIGN_EMERGENCY_EXIT,
5280   EL_SIGN_YIN_YANG,
5281
5282 #if 0
5283   EL_SIGN_SPERMS,
5284   EL_SIGN_BULLET,
5285   EL_SIGN_HEART,
5286   EL_SIGN_CROSS,
5287
5288   EL_SIGN_FRANKIE,
5289   EL_EMPTY,
5290   EL_EMPTY,
5291   EL_EMPTY,
5292
5293   EL_SPERMS,
5294   EL_BULLET,
5295   EL_HEART,
5296   EL_CROSS,
5297
5298   EL_FRANKIE,
5299   EL_EMPTY,
5300   EL_EMPTY,
5301   EL_EMPTY,
5302 #endif
5303
5304   EL_DC_STEELWALL_2_SINGLE,
5305   EL_DC_STEELWALL_2_TOP,
5306   EL_SIGN_EXCLAMATION,
5307   EL_SIGN_STOP,
5308
5309   EL_DC_STEELWALL_2_LEFT,
5310   EL_DC_STEELWALL_2_MIDDLE,
5311   EL_DC_STEELWALL_2_HORIZONTAL,
5312   EL_DC_STEELWALL_2_RIGHT,
5313
5314   EL_DC_STEELWALL_1_TOPLEFT,
5315   EL_DC_STEELWALL_2_VERTICAL,
5316   EL_DC_STEELWALL_1_TOPRIGHT,
5317   EL_DC_GATE_WHITE,
5318
5319   EL_DC_STEELWALL_1_VERTICAL,
5320   EL_DC_STEELWALL_2_BOTTOM,
5321   EL_DC_KEY_WHITE,
5322   EL_DC_GATE_WHITE_GRAY,
5323
5324   EL_DC_STEELWALL_1_BOTTOMLEFT,
5325   EL_DC_STEELWALL_1_HORIZONTAL,
5326   EL_DC_STEELWALL_1_BOTTOMRIGHT,
5327   EL_DC_GATE_FAKE_GRAY,
5328
5329   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
5330   EL_DC_STEELWALL_1_BOTTOM,
5331   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
5332   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
5333
5334   EL_DC_STEELWALL_1_RIGHT,
5335   EL_EMPTY,
5336   EL_DC_STEELWALL_1_LEFT,
5337   EL_EXPANDABLE_STEELWALL_VERTICAL,
5338
5339   EL_DC_STEELWALL_1_TOPRIGHT_2,
5340   EL_DC_STEELWALL_1_TOP,
5341   EL_DC_STEELWALL_1_TOPLEFT_2,
5342   EL_EXPANDABLE_STEELWALL_ANY,
5343 };
5344 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
5345 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
5346 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
5347 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
5348
5349 static int editor_hl_dx_boulderdash[] =
5350 {
5351   EL_INTERNAL_CASCADE_DX_ACTIVE,
5352   EL_CHAR('D'),
5353   EL_CHAR('X'),
5354   EL_EMPTY,
5355 };
5356
5357 static int editor_el_dx_boulderdash[] =
5358 {
5359   EL_EMPTY,
5360   EL_TUBE_RIGHT_DOWN,
5361   EL_TUBE_HORIZONTAL_DOWN,
5362   EL_TUBE_LEFT_DOWN,
5363
5364   EL_TUBE_HORIZONTAL,
5365   EL_TUBE_VERTICAL_RIGHT,
5366   EL_TUBE_ANY,
5367   EL_TUBE_VERTICAL_LEFT,
5368
5369   EL_TUBE_VERTICAL,
5370   EL_TUBE_RIGHT_UP,
5371   EL_TUBE_HORIZONTAL_UP,
5372   EL_TUBE_LEFT_UP,
5373
5374   EL_TRAP,
5375   EL_DX_SUPABOMB,
5376   EL_EMPTY,
5377   EL_EMPTY
5378 };
5379 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
5380 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
5381 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
5382 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
5383
5384 static int editor_hl_mirror_magic[] =
5385 {
5386   EL_INTERNAL_CASCADE_MM_ACTIVE,
5387   EL_CHAR('M'),
5388   EL_CHAR('M'),
5389   EL_EMPTY,
5390 };
5391
5392 static int editor_el_mirror_magic[] =
5393 {
5394   EL_MM_MCDUFFIN_RIGHT,
5395   EL_MM_MCDUFFIN_UP,
5396   EL_MM_MCDUFFIN_LEFT,
5397   EL_MM_MCDUFFIN_DOWN,
5398
5399   EL_MM_MIRROR_START,
5400   EL_MM_MIRROR_FIXED_START,
5401   EL_MM_POLARIZER_START,
5402   EL_MM_POLARIZER_CROSS_START,
5403
5404   EL_MM_TELEPORTER_RED_START,
5405   EL_MM_TELEPORTER_YELLOW_START,
5406   EL_MM_TELEPORTER_GREEN_START,
5407   EL_MM_TELEPORTER_BLUE_START,
5408
5409   EL_MM_PRISM,
5410   EL_MM_FUSE_ACTIVE,
5411   EL_MM_PACMAN_RIGHT,
5412   EL_MM_EXIT_CLOSED,
5413
5414   EL_MM_KETTLE,
5415   EL_MM_BOMB,
5416   EL_MM_KEY,
5417   EL_MM_FUEL_FULL,
5418
5419   EL_MM_LIGHTBULB,
5420   EL_MM_LIGHTBULB_ACTIVE,
5421   EL_MM_GRAY_BALL,
5422   EL_MM_LIGHTBALL,
5423
5424   EL_MM_STEEL_WALL,
5425   EL_MM_WOODEN_WALL,
5426   EL_MM_ICE_WALL,
5427   EL_MM_AMOEBA_WALL,
5428
5429   EL_MM_STEEL_LOCK,
5430   EL_MM_WOODEN_LOCK,
5431   EL_MM_STEEL_BLOCK,
5432   EL_MM_WOODEN_BLOCK,
5433
5434   EL_MM_STEEL_GRID_FIXED_1,
5435   EL_MM_STEEL_GRID_FIXED_2,
5436   EL_MM_STEEL_GRID_FIXED_3,
5437   EL_MM_STEEL_GRID_FIXED_4,
5438
5439   EL_MM_WOODEN_GRID_FIXED_1,
5440   EL_MM_WOODEN_GRID_FIXED_2,
5441   EL_MM_WOODEN_GRID_FIXED_3,
5442   EL_MM_WOODEN_GRID_FIXED_4,
5443
5444   EL_MM_ENVELOPE_1,
5445   EL_MM_ENVELOPE_2,
5446   EL_MM_ENVELOPE_3,
5447   EL_MM_ENVELOPE_4
5448 };
5449 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
5450 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
5451 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
5452 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
5453
5454 static int editor_hl_deflektor[] =
5455 {
5456   EL_INTERNAL_CASCADE_DF_ACTIVE,
5457   EL_CHAR('D'),
5458   EL_CHAR('F'),
5459   EL_EMPTY,
5460 };
5461
5462 static int editor_el_deflektor[] =
5463 {
5464   EL_DF_LASER_RIGHT,
5465   EL_DF_LASER_UP,
5466   EL_DF_LASER_LEFT,
5467   EL_DF_LASER_DOWN,
5468
5469   EL_DF_RECEIVER_RIGHT,
5470   EL_DF_RECEIVER_UP,
5471   EL_DF_RECEIVER_LEFT,
5472   EL_DF_RECEIVER_DOWN,
5473
5474   EL_DF_MIRROR_START,
5475   EL_DF_MIRROR_ROTATING_START,
5476   EL_DF_MIRROR_FIXED_START,
5477   EL_DF_CELL,
5478
5479   EL_DF_FIBRE_OPTIC_RED_1,
5480   EL_DF_FIBRE_OPTIC_YELLOW_1,
5481   EL_DF_FIBRE_OPTIC_GREEN_1,
5482   EL_DF_FIBRE_OPTIC_BLUE_1,
5483
5484   EL_DF_STEEL_GRID_FIXED_START,
5485   EL_DF_STEEL_GRID_ROTATING_START,
5486   EL_DF_WOODEN_GRID_FIXED_START,
5487   EL_DF_WOODEN_GRID_ROTATING_START,
5488
5489   EL_DF_STEEL_WALL,
5490   EL_DF_WOODEN_WALL,
5491   EL_DF_REFRACTOR,
5492   EL_DF_MINE,
5493
5494   EL_DF_SLOPE_1,
5495   EL_DF_SLOPE_2,
5496   EL_DF_SLOPE_3,
5497   EL_DF_SLOPE_4
5498 };
5499 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
5500 static int *editor_el_deflektor_ptr = editor_el_deflektor;
5501 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
5502 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
5503
5504 static int editor_hl_chars[] =
5505 {
5506   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
5507   EL_CHAR('T'),
5508   EL_CHAR('X'),
5509   EL_CHAR('T'),
5510 };
5511
5512 static int editor_el_chars[] =
5513 {
5514   EL_CHAR(' '),
5515   EL_CHAR('!'),
5516   EL_CHAR('"'),
5517   EL_CHAR('#'),
5518
5519   EL_CHAR('$'),
5520   EL_CHAR('%'),
5521   EL_CHAR('&'),
5522   EL_CHAR('\''),
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('0'),
5535   EL_CHAR('1'),
5536   EL_CHAR('2'),
5537   EL_CHAR('3'),
5538
5539   EL_CHAR('4'),
5540   EL_CHAR('5'),
5541   EL_CHAR('6'),
5542   EL_CHAR('7'),
5543
5544   EL_CHAR('8'),
5545   EL_CHAR('9'),
5546   EL_CHAR(':'),
5547   EL_CHAR(';'),
5548
5549   EL_CHAR('<'),
5550   EL_CHAR('='),
5551   EL_CHAR('>'),
5552   EL_CHAR('?'),
5553
5554   EL_CHAR('@'),
5555   EL_CHAR('A'),
5556   EL_CHAR('B'),
5557   EL_CHAR('C'),
5558
5559   EL_CHAR('D'),
5560   EL_CHAR('E'),
5561   EL_CHAR('F'),
5562   EL_CHAR('G'),
5563
5564   EL_CHAR('H'),
5565   EL_CHAR('I'),
5566   EL_CHAR('J'),
5567   EL_CHAR('K'),
5568
5569   EL_CHAR('L'),
5570   EL_CHAR('M'),
5571   EL_CHAR('N'),
5572   EL_CHAR('O'),
5573
5574   EL_CHAR('P'),
5575   EL_CHAR('Q'),
5576   EL_CHAR('R'),
5577   EL_CHAR('S'),
5578
5579   EL_CHAR('T'),
5580   EL_CHAR('U'),
5581   EL_CHAR('V'),
5582   EL_CHAR('W'),
5583
5584   EL_CHAR('X'),
5585   EL_CHAR('Y'),
5586   EL_CHAR('Z'),
5587   EL_CHAR('['),
5588
5589   EL_CHAR('\\'),
5590   EL_CHAR(']'),
5591   EL_CHAR('^'),
5592   EL_CHAR('_'),
5593
5594   EL_CHAR(CHAR_BYTE_COPYRIGHT),
5595   EL_CHAR(CHAR_BYTE_UMLAUT_A),
5596   EL_CHAR(CHAR_BYTE_UMLAUT_O),
5597   EL_CHAR(CHAR_BYTE_UMLAUT_U),
5598
5599   EL_CHAR(CHAR_BYTE_DEGREE),
5600   EL_CHAR(CHAR_BYTE_REGISTERED),
5601   EL_CHAR(FONT_ASCII_CURSOR),
5602   EL_CHAR(FONT_ASCII_BUTTON),
5603
5604   EL_CHAR(FONT_ASCII_UP),
5605   EL_CHAR(FONT_ASCII_DOWN),
5606   EL_CHAR(' '),
5607   EL_CHAR(' ')
5608 };
5609 static int *editor_hl_chars_ptr = editor_hl_chars;
5610 static int *editor_el_chars_ptr = editor_el_chars;
5611 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
5612 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
5613
5614 static int editor_hl_steel_chars[] =
5615 {
5616   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
5617   EL_STEEL_CHAR('T'),
5618   EL_STEEL_CHAR('X'),
5619   EL_STEEL_CHAR('T'),
5620 };
5621
5622 static int editor_el_steel_chars[] =
5623 {
5624   EL_STEEL_CHAR(' '),
5625   EL_STEEL_CHAR('!'),
5626   EL_STEEL_CHAR('"'),
5627   EL_STEEL_CHAR('#'),
5628
5629   EL_STEEL_CHAR('$'),
5630   EL_STEEL_CHAR('%'),
5631   EL_STEEL_CHAR('&'),
5632   EL_STEEL_CHAR('\''),
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('0'),
5645   EL_STEEL_CHAR('1'),
5646   EL_STEEL_CHAR('2'),
5647   EL_STEEL_CHAR('3'),
5648
5649   EL_STEEL_CHAR('4'),
5650   EL_STEEL_CHAR('5'),
5651   EL_STEEL_CHAR('6'),
5652   EL_STEEL_CHAR('7'),
5653
5654   EL_STEEL_CHAR('8'),
5655   EL_STEEL_CHAR('9'),
5656   EL_STEEL_CHAR(':'),
5657   EL_STEEL_CHAR(';'),
5658
5659   EL_STEEL_CHAR('<'),
5660   EL_STEEL_CHAR('='),
5661   EL_STEEL_CHAR('>'),
5662   EL_STEEL_CHAR('?'),
5663
5664   EL_STEEL_CHAR('@'),
5665   EL_STEEL_CHAR('A'),
5666   EL_STEEL_CHAR('B'),
5667   EL_STEEL_CHAR('C'),
5668
5669   EL_STEEL_CHAR('D'),
5670   EL_STEEL_CHAR('E'),
5671   EL_STEEL_CHAR('F'),
5672   EL_STEEL_CHAR('G'),
5673
5674   EL_STEEL_CHAR('H'),
5675   EL_STEEL_CHAR('I'),
5676   EL_STEEL_CHAR('J'),
5677   EL_STEEL_CHAR('K'),
5678
5679   EL_STEEL_CHAR('L'),
5680   EL_STEEL_CHAR('M'),
5681   EL_STEEL_CHAR('N'),
5682   EL_STEEL_CHAR('O'),
5683
5684   EL_STEEL_CHAR('P'),
5685   EL_STEEL_CHAR('Q'),
5686   EL_STEEL_CHAR('R'),
5687   EL_STEEL_CHAR('S'),
5688
5689   EL_STEEL_CHAR('T'),
5690   EL_STEEL_CHAR('U'),
5691   EL_STEEL_CHAR('V'),
5692   EL_STEEL_CHAR('W'),
5693
5694   EL_STEEL_CHAR('X'),
5695   EL_STEEL_CHAR('Y'),
5696   EL_STEEL_CHAR('Z'),
5697   EL_STEEL_CHAR('['),
5698
5699   EL_STEEL_CHAR('\\'),
5700   EL_STEEL_CHAR(']'),
5701   EL_STEEL_CHAR('^'),
5702   EL_STEEL_CHAR('_'),
5703
5704   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
5705   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
5706   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
5707   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
5708
5709   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
5710   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
5711   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
5712   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
5713
5714   EL_STEEL_CHAR(FONT_ASCII_UP),
5715   EL_STEEL_CHAR(FONT_ASCII_DOWN),
5716   EL_STEEL_CHAR(' '),
5717   EL_STEEL_CHAR(' ')
5718 };
5719 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
5720 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
5721 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
5722 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
5723
5724 static int editor_hl_custom[] =
5725 {
5726   EL_INTERNAL_CASCADE_CE_ACTIVE,
5727   EL_CHAR('C'),
5728   EL_CHAR('E'),
5729   EL_EMPTY,
5730 };
5731
5732 static int editor_el_custom[] =
5733 {
5734   EL_CUSTOM_START + 0,
5735   EL_CUSTOM_START + 1,
5736   EL_CUSTOM_START + 2,
5737   EL_CUSTOM_START + 3,
5738
5739   EL_CUSTOM_START + 4,
5740   EL_CUSTOM_START + 5,
5741   EL_CUSTOM_START + 6,
5742   EL_CUSTOM_START + 7,
5743
5744   EL_CUSTOM_START + 8,
5745   EL_CUSTOM_START + 9,
5746   EL_CUSTOM_START + 10,
5747   EL_CUSTOM_START + 11,
5748
5749   EL_CUSTOM_START + 12,
5750   EL_CUSTOM_START + 13,
5751   EL_CUSTOM_START + 14,
5752   EL_CUSTOM_START + 15,
5753
5754   EL_CUSTOM_START + 16,
5755   EL_CUSTOM_START + 17,
5756   EL_CUSTOM_START + 18,
5757   EL_CUSTOM_START + 19,
5758
5759   EL_CUSTOM_START + 20,
5760   EL_CUSTOM_START + 21,
5761   EL_CUSTOM_START + 22,
5762   EL_CUSTOM_START + 23,
5763
5764   EL_CUSTOM_START + 24,
5765   EL_CUSTOM_START + 25,
5766   EL_CUSTOM_START + 26,
5767   EL_CUSTOM_START + 27,
5768
5769   EL_CUSTOM_START + 28,
5770   EL_CUSTOM_START + 29,
5771   EL_CUSTOM_START + 30,
5772   EL_CUSTOM_START + 31,
5773
5774   EL_CUSTOM_START + 32,
5775   EL_CUSTOM_START + 33,
5776   EL_CUSTOM_START + 34,
5777   EL_CUSTOM_START + 35,
5778
5779   EL_CUSTOM_START + 36,
5780   EL_CUSTOM_START + 37,
5781   EL_CUSTOM_START + 38,
5782   EL_CUSTOM_START + 39,
5783
5784   EL_CUSTOM_START + 40,
5785   EL_CUSTOM_START + 41,
5786   EL_CUSTOM_START + 42,
5787   EL_CUSTOM_START + 43,
5788
5789   EL_CUSTOM_START + 44,
5790   EL_CUSTOM_START + 45,
5791   EL_CUSTOM_START + 46,
5792   EL_CUSTOM_START + 47,
5793
5794   EL_CUSTOM_START + 48,
5795   EL_CUSTOM_START + 49,
5796   EL_CUSTOM_START + 50,
5797   EL_CUSTOM_START + 51,
5798
5799   EL_CUSTOM_START + 52,
5800   EL_CUSTOM_START + 53,
5801   EL_CUSTOM_START + 54,
5802   EL_CUSTOM_START + 55,
5803
5804   EL_CUSTOM_START + 56,
5805   EL_CUSTOM_START + 57,
5806   EL_CUSTOM_START + 58,
5807   EL_CUSTOM_START + 59,
5808
5809   EL_CUSTOM_START + 60,
5810   EL_CUSTOM_START + 61,
5811   EL_CUSTOM_START + 62,
5812   EL_CUSTOM_START + 63,
5813
5814   EL_CUSTOM_START + 64,
5815   EL_CUSTOM_START + 65,
5816   EL_CUSTOM_START + 66,
5817   EL_CUSTOM_START + 67,
5818
5819   EL_CUSTOM_START + 68,
5820   EL_CUSTOM_START + 69,
5821   EL_CUSTOM_START + 70,
5822   EL_CUSTOM_START + 71,
5823
5824   EL_CUSTOM_START + 72,
5825   EL_CUSTOM_START + 73,
5826   EL_CUSTOM_START + 74,
5827   EL_CUSTOM_START + 75,
5828
5829   EL_CUSTOM_START + 76,
5830   EL_CUSTOM_START + 77,
5831   EL_CUSTOM_START + 78,
5832   EL_CUSTOM_START + 79,
5833
5834   EL_CUSTOM_START + 80,
5835   EL_CUSTOM_START + 81,
5836   EL_CUSTOM_START + 82,
5837   EL_CUSTOM_START + 83,
5838
5839   EL_CUSTOM_START + 84,
5840   EL_CUSTOM_START + 85,
5841   EL_CUSTOM_START + 86,
5842   EL_CUSTOM_START + 87,
5843
5844   EL_CUSTOM_START + 88,
5845   EL_CUSTOM_START + 89,
5846   EL_CUSTOM_START + 90,
5847   EL_CUSTOM_START + 91,
5848
5849   EL_CUSTOM_START + 92,
5850   EL_CUSTOM_START + 93,
5851   EL_CUSTOM_START + 94,
5852   EL_CUSTOM_START + 95,
5853
5854   EL_CUSTOM_START + 96,
5855   EL_CUSTOM_START + 97,
5856   EL_CUSTOM_START + 98,
5857   EL_CUSTOM_START + 99,
5858
5859   EL_CUSTOM_START + 100,
5860   EL_CUSTOM_START + 101,
5861   EL_CUSTOM_START + 102,
5862   EL_CUSTOM_START + 103,
5863
5864   EL_CUSTOM_START + 104,
5865   EL_CUSTOM_START + 105,
5866   EL_CUSTOM_START + 106,
5867   EL_CUSTOM_START + 107,
5868
5869   EL_CUSTOM_START + 108,
5870   EL_CUSTOM_START + 109,
5871   EL_CUSTOM_START + 110,
5872   EL_CUSTOM_START + 111,
5873
5874   EL_CUSTOM_START + 112,
5875   EL_CUSTOM_START + 113,
5876   EL_CUSTOM_START + 114,
5877   EL_CUSTOM_START + 115,
5878
5879   EL_CUSTOM_START + 116,
5880   EL_CUSTOM_START + 117,
5881   EL_CUSTOM_START + 118,
5882   EL_CUSTOM_START + 119,
5883
5884   EL_CUSTOM_START + 120,
5885   EL_CUSTOM_START + 121,
5886   EL_CUSTOM_START + 122,
5887   EL_CUSTOM_START + 123,
5888
5889   EL_CUSTOM_START + 124,
5890   EL_CUSTOM_START + 125,
5891   EL_CUSTOM_START + 126,
5892   EL_CUSTOM_START + 127,
5893
5894   EL_CUSTOM_START + 128,
5895   EL_CUSTOM_START + 129,
5896   EL_CUSTOM_START + 130,
5897   EL_CUSTOM_START + 131,
5898
5899   EL_CUSTOM_START + 132,
5900   EL_CUSTOM_START + 133,
5901   EL_CUSTOM_START + 134,
5902   EL_CUSTOM_START + 135,
5903
5904   EL_CUSTOM_START + 136,
5905   EL_CUSTOM_START + 137,
5906   EL_CUSTOM_START + 138,
5907   EL_CUSTOM_START + 139,
5908
5909   EL_CUSTOM_START + 140,
5910   EL_CUSTOM_START + 141,
5911   EL_CUSTOM_START + 142,
5912   EL_CUSTOM_START + 143,
5913
5914   EL_CUSTOM_START + 144,
5915   EL_CUSTOM_START + 145,
5916   EL_CUSTOM_START + 146,
5917   EL_CUSTOM_START + 147,
5918
5919   EL_CUSTOM_START + 148,
5920   EL_CUSTOM_START + 149,
5921   EL_CUSTOM_START + 150,
5922   EL_CUSTOM_START + 151,
5923
5924   EL_CUSTOM_START + 152,
5925   EL_CUSTOM_START + 153,
5926   EL_CUSTOM_START + 154,
5927   EL_CUSTOM_START + 155,
5928
5929   EL_CUSTOM_START + 156,
5930   EL_CUSTOM_START + 157,
5931   EL_CUSTOM_START + 158,
5932   EL_CUSTOM_START + 159,
5933
5934   EL_CUSTOM_START + 160,
5935   EL_CUSTOM_START + 161,
5936   EL_CUSTOM_START + 162,
5937   EL_CUSTOM_START + 163,
5938
5939   EL_CUSTOM_START + 164,
5940   EL_CUSTOM_START + 165,
5941   EL_CUSTOM_START + 166,
5942   EL_CUSTOM_START + 167,
5943
5944   EL_CUSTOM_START + 168,
5945   EL_CUSTOM_START + 169,
5946   EL_CUSTOM_START + 170,
5947   EL_CUSTOM_START + 171,
5948
5949   EL_CUSTOM_START + 172,
5950   EL_CUSTOM_START + 173,
5951   EL_CUSTOM_START + 174,
5952   EL_CUSTOM_START + 175,
5953
5954   EL_CUSTOM_START + 176,
5955   EL_CUSTOM_START + 177,
5956   EL_CUSTOM_START + 178,
5957   EL_CUSTOM_START + 179,
5958
5959   EL_CUSTOM_START + 180,
5960   EL_CUSTOM_START + 181,
5961   EL_CUSTOM_START + 182,
5962   EL_CUSTOM_START + 183,
5963
5964   EL_CUSTOM_START + 184,
5965   EL_CUSTOM_START + 185,
5966   EL_CUSTOM_START + 186,
5967   EL_CUSTOM_START + 187,
5968
5969   EL_CUSTOM_START + 188,
5970   EL_CUSTOM_START + 189,
5971   EL_CUSTOM_START + 190,
5972   EL_CUSTOM_START + 191,
5973
5974   EL_CUSTOM_START + 192,
5975   EL_CUSTOM_START + 193,
5976   EL_CUSTOM_START + 194,
5977   EL_CUSTOM_START + 195,
5978
5979   EL_CUSTOM_START + 196,
5980   EL_CUSTOM_START + 197,
5981   EL_CUSTOM_START + 198,
5982   EL_CUSTOM_START + 199,
5983
5984   EL_CUSTOM_START + 200,
5985   EL_CUSTOM_START + 201,
5986   EL_CUSTOM_START + 202,
5987   EL_CUSTOM_START + 203,
5988
5989   EL_CUSTOM_START + 204,
5990   EL_CUSTOM_START + 205,
5991   EL_CUSTOM_START + 206,
5992   EL_CUSTOM_START + 207,
5993
5994   EL_CUSTOM_START + 208,
5995   EL_CUSTOM_START + 209,
5996   EL_CUSTOM_START + 210,
5997   EL_CUSTOM_START + 211,
5998
5999   EL_CUSTOM_START + 212,
6000   EL_CUSTOM_START + 213,
6001   EL_CUSTOM_START + 214,
6002   EL_CUSTOM_START + 215,
6003
6004   EL_CUSTOM_START + 216,
6005   EL_CUSTOM_START + 217,
6006   EL_CUSTOM_START + 218,
6007   EL_CUSTOM_START + 219,
6008
6009   EL_CUSTOM_START + 220,
6010   EL_CUSTOM_START + 221,
6011   EL_CUSTOM_START + 222,
6012   EL_CUSTOM_START + 223,
6013
6014   EL_CUSTOM_START + 224,
6015   EL_CUSTOM_START + 225,
6016   EL_CUSTOM_START + 226,
6017   EL_CUSTOM_START + 227,
6018
6019   EL_CUSTOM_START + 228,
6020   EL_CUSTOM_START + 229,
6021   EL_CUSTOM_START + 230,
6022   EL_CUSTOM_START + 231,
6023
6024   EL_CUSTOM_START + 232,
6025   EL_CUSTOM_START + 233,
6026   EL_CUSTOM_START + 234,
6027   EL_CUSTOM_START + 235,
6028
6029   EL_CUSTOM_START + 236,
6030   EL_CUSTOM_START + 237,
6031   EL_CUSTOM_START + 238,
6032   EL_CUSTOM_START + 239,
6033
6034   EL_CUSTOM_START + 240,
6035   EL_CUSTOM_START + 241,
6036   EL_CUSTOM_START + 242,
6037   EL_CUSTOM_START + 243,
6038
6039   EL_CUSTOM_START + 244,
6040   EL_CUSTOM_START + 245,
6041   EL_CUSTOM_START + 246,
6042   EL_CUSTOM_START + 247,
6043
6044   EL_CUSTOM_START + 248,
6045   EL_CUSTOM_START + 249,
6046   EL_CUSTOM_START + 250,
6047   EL_CUSTOM_START + 251,
6048
6049   EL_CUSTOM_START + 252,
6050   EL_CUSTOM_START + 253,
6051   EL_CUSTOM_START + 254,
6052   EL_CUSTOM_START + 255
6053 };
6054 static int *editor_hl_custom_ptr = editor_hl_custom;
6055 static int *editor_el_custom_ptr = editor_el_custom;
6056 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
6057 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
6058
6059 static int editor_hl_group[] =
6060 {
6061   EL_INTERNAL_CASCADE_GE_ACTIVE,
6062   EL_CHAR('G'),
6063   EL_CHAR('E'),
6064   EL_EMPTY,
6065 };
6066
6067 static int editor_el_group[] =
6068 {
6069   EL_GROUP_START + 0,
6070   EL_GROUP_START + 1,
6071   EL_GROUP_START + 2,
6072   EL_GROUP_START + 3,
6073
6074   EL_GROUP_START + 4,
6075   EL_GROUP_START + 5,
6076   EL_GROUP_START + 6,
6077   EL_GROUP_START + 7,
6078
6079   EL_GROUP_START + 8,
6080   EL_GROUP_START + 9,
6081   EL_GROUP_START + 10,
6082   EL_GROUP_START + 11,
6083
6084   EL_GROUP_START + 12,
6085   EL_GROUP_START + 13,
6086   EL_GROUP_START + 14,
6087   EL_GROUP_START + 15,
6088
6089   EL_GROUP_START + 16,
6090   EL_GROUP_START + 17,
6091   EL_GROUP_START + 18,
6092   EL_GROUP_START + 19,
6093
6094   EL_GROUP_START + 20,
6095   EL_GROUP_START + 21,
6096   EL_GROUP_START + 22,
6097   EL_GROUP_START + 23,
6098
6099   EL_GROUP_START + 24,
6100   EL_GROUP_START + 25,
6101   EL_GROUP_START + 26,
6102   EL_GROUP_START + 27,
6103
6104   EL_GROUP_START + 28,
6105   EL_GROUP_START + 29,
6106   EL_GROUP_START + 30,
6107   EL_GROUP_START + 31
6108 };
6109 static int *editor_hl_group_ptr = editor_hl_group;
6110 static int *editor_el_group_ptr = editor_el_group;
6111 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
6112 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
6113
6114 static int editor_hl_empty_space[] =
6115 {
6116   EL_INTERNAL_CASCADE_ES_ACTIVE,
6117   EL_CHAR('E'),
6118   EL_CHAR('S'),
6119   EL_EMPTY,
6120 };
6121
6122 static int editor_el_empty_space[] =
6123 {
6124   EL_EMPTY_SPACE_1,
6125   EL_EMPTY_SPACE_2,
6126   EL_EMPTY_SPACE_3,
6127   EL_EMPTY_SPACE_4,
6128
6129   EL_EMPTY_SPACE_5,
6130   EL_EMPTY_SPACE_6,
6131   EL_EMPTY_SPACE_7,
6132   EL_EMPTY_SPACE_8,
6133
6134   EL_EMPTY_SPACE_9,
6135   EL_EMPTY_SPACE_10,
6136   EL_EMPTY_SPACE_11,
6137   EL_EMPTY_SPACE_12,
6138
6139   EL_EMPTY_SPACE_13,
6140   EL_EMPTY_SPACE_14,
6141   EL_EMPTY_SPACE_15,
6142   EL_EMPTY_SPACE_16
6143 };
6144 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
6145 static int *editor_el_empty_space_ptr = editor_el_empty_space;
6146 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
6147 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
6148
6149 static int editor_hl_reference[] =
6150 {
6151   EL_INTERNAL_CASCADE_REF_ACTIVE,
6152   EL_CHAR('R'),
6153   EL_CHAR('E'),
6154   EL_CHAR('F')
6155 };
6156
6157 static int editor_el_reference[] =
6158 {
6159   EL_TRIGGER_PLAYER,
6160   EL_TRIGGER_ELEMENT,
6161   EL_TRIGGER_CE_VALUE,
6162   EL_TRIGGER_CE_SCORE,
6163
6164   EL_SELF,
6165   EL_ANY_ELEMENT,
6166   EL_CURRENT_CE_VALUE,
6167   EL_CURRENT_CE_SCORE,
6168
6169   EL_PREV_CE_8,
6170   EL_PREV_CE_7,
6171   EL_PREV_CE_6,
6172   EL_PREV_CE_5,
6173
6174   EL_PREV_CE_4,
6175   EL_PREV_CE_3,
6176   EL_PREV_CE_2,
6177   EL_PREV_CE_1,
6178
6179   EL_NEXT_CE_1,
6180   EL_NEXT_CE_2,
6181   EL_NEXT_CE_3,
6182   EL_NEXT_CE_4,
6183
6184   EL_NEXT_CE_5,
6185   EL_NEXT_CE_6,
6186   EL_NEXT_CE_7,
6187   EL_NEXT_CE_8,
6188 };
6189 static int *editor_hl_reference_ptr = editor_hl_reference;
6190 static int *editor_el_reference_ptr = editor_el_reference;
6191 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
6192 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
6193
6194 static int editor_hl_user_defined[] =
6195 {
6196   EL_INTERNAL_CASCADE_USER_ACTIVE,
6197   EL_CHAR('M'),
6198   EL_CHAR('Y'),
6199   EL_EMPTY,
6200 };
6201
6202 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
6203 static int *editor_el_user_defined_ptr = NULL;
6204 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
6205 static int num_editor_el_user_defined = 0;
6206
6207 static int editor_hl_dynamic[] =
6208 {
6209   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
6210   EL_CHAR('U'),
6211   EL_CHAR('S'),
6212   EL_CHAR('E'),
6213 };
6214
6215 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
6216 static int *editor_el_dynamic_ptr = NULL;
6217 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
6218 static int num_editor_el_dynamic = 0;
6219
6220 static int editor_hl_empty[] = { EL_EMPTY };
6221 static int *editor_el_empty = NULL;     // dynamically allocated
6222
6223 static int *editor_hl_empty_ptr = editor_hl_empty;
6224 static int *editor_el_empty_ptr = NULL;
6225 static int num_editor_hl_empty = 0;
6226 static int num_editor_el_empty = 0;     // dynamically determined, if needed
6227
6228 static boolean use_el_empty = FALSE;
6229
6230 static int *editor_elements = NULL;     // dynamically allocated
6231 static int num_editor_elements = 0;     // dynamically determined
6232
6233 static boolean setup_editor_cascade_never = FALSE;
6234
6235 static boolean setup_editor_el_players                  = TRUE;
6236 static boolean setup_editor_el_boulderdash              = TRUE;
6237 static boolean setup_editor_el_boulderdash_native       = TRUE;
6238 static boolean setup_editor_el_emerald_mine             = TRUE;
6239 static boolean setup_editor_el_emerald_mine_club        = TRUE;
6240 static boolean setup_editor_el_more                     = TRUE;
6241 static boolean setup_editor_el_sokoban                  = TRUE;
6242 static boolean setup_editor_el_supaplex                 = TRUE;
6243 static boolean setup_editor_el_diamond_caves            = TRUE;
6244 static boolean setup_editor_el_dx_boulderdash           = TRUE;
6245 static boolean setup_editor_el_mirror_magic             = TRUE;
6246 static boolean setup_editor_el_deflektor                = TRUE;
6247 static boolean setup_editor_el_chars                    = TRUE;
6248 static boolean setup_editor_el_steel_chars              = TRUE;
6249 static boolean setup_editor_el_custom                   = TRUE;
6250 static boolean setup_editor_el_user_defined             = TRUE;
6251 static boolean setup_editor_el_dynamic                  = TRUE;
6252
6253 static int editor_hl_unused[] = { EL_EMPTY };
6254 static int *editor_hl_unused_ptr = editor_hl_unused;
6255 static int num_editor_hl_unused = 0;
6256
6257 static struct
6258 {
6259   boolean *setup_value;
6260   boolean *setup_cascade_value;
6261
6262   int **headline_list;
6263   int *headline_list_size;
6264
6265   int **element_list;
6266   int *element_list_size;
6267
6268   boolean last_setup_value;
6269 }
6270 editor_elements_info[] =
6271 {
6272   {
6273     &setup_editor_el_players,
6274     &setup_editor_cascade_never,
6275     &editor_hl_unused_ptr,              &num_editor_hl_unused,
6276     &editor_el_players_ptr,             &num_editor_el_players
6277   },
6278   {
6279     &setup_editor_el_boulderdash,
6280     &setup.editor_cascade.el_bd,
6281     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
6282     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
6283   },
6284   {
6285     &setup_editor_el_boulderdash_native,
6286     &setup.editor_cascade.el_bd_native,
6287     &editor_hl_boulderdash_native_ptr,  &num_editor_hl_boulderdash_native,
6288     &editor_el_boulderdash_native_ptr,  &num_editor_el_boulderdash_native
6289   },
6290   {
6291     &setup_editor_el_emerald_mine,
6292     &setup.editor_cascade.el_em,
6293     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
6294     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
6295   },
6296   {
6297     &setup_editor_el_emerald_mine_club,
6298     &setup.editor_cascade.el_emc,
6299     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
6300     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
6301   },
6302   {
6303     &setup_editor_el_more,
6304     &setup.editor_cascade.el_rnd,
6305     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
6306     &editor_el_rnd_ptr,                 &num_editor_el_rnd
6307   },
6308   {
6309     &setup_editor_el_sokoban,
6310     &setup.editor_cascade.el_sb,
6311     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
6312     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
6313   },
6314   {
6315     &setup_editor_el_supaplex,
6316     &setup.editor_cascade.el_sp,
6317     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
6318     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
6319   },
6320   {
6321     &setup_editor_el_diamond_caves,
6322     &setup.editor_cascade.el_dc,
6323     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
6324     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
6325   },
6326   {
6327     &setup_editor_el_dx_boulderdash,
6328     &setup.editor_cascade.el_dx,
6329     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
6330     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
6331   },
6332   {
6333     &setup_editor_el_mirror_magic,
6334     &setup.editor_cascade.el_mm,
6335     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
6336     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
6337   },
6338   {
6339     &setup_editor_el_deflektor,
6340     &setup.editor_cascade.el_df,
6341     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
6342     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
6343   },
6344   {
6345     &setup_editor_el_chars,
6346     &setup.editor_cascade.el_chars,
6347     &editor_hl_chars_ptr,               &num_editor_hl_chars,
6348     &editor_el_chars_ptr,               &num_editor_el_chars
6349   },
6350   {
6351     &setup_editor_el_steel_chars,
6352     &setup.editor_cascade.el_steel_chars,
6353     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
6354     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
6355   },
6356   {
6357     &setup_editor_el_custom,
6358     &setup.editor_cascade.el_ce,
6359     &editor_hl_custom_ptr,              &num_editor_hl_custom,
6360     &editor_el_custom_ptr,              &num_editor_el_custom
6361   },
6362   {
6363     &setup_editor_el_custom,
6364     &setup.editor_cascade.el_ge,
6365     &editor_hl_group_ptr,               &num_editor_hl_group,
6366     &editor_el_group_ptr,               &num_editor_el_group
6367   },
6368   {
6369     &setup_editor_el_custom,
6370     &setup.editor_cascade.el_es,
6371     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
6372     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
6373   },
6374   {
6375     &setup_editor_el_custom,
6376     &setup.editor_cascade.el_ref,
6377     &editor_hl_reference_ptr,           &num_editor_hl_reference,
6378     &editor_el_reference_ptr,           &num_editor_el_reference
6379   },
6380   {
6381     &setup_editor_el_user_defined,
6382     &setup.editor_cascade.el_user,
6383     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
6384     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
6385   },
6386   {
6387     &setup_editor_el_dynamic,
6388     &setup.editor_cascade.el_dynamic,
6389     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
6390     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
6391   },
6392   {
6393     &use_el_empty,
6394     &use_el_empty,
6395     &editor_hl_empty_ptr,               &num_editor_hl_empty,
6396     &editor_el_empty_ptr,               &num_editor_el_empty,
6397   },
6398   {
6399     NULL,
6400     NULL,
6401     NULL,                               NULL,
6402     NULL,                               NULL
6403   }
6404 };
6405
6406 static struct XY xy_directions[] =
6407 {
6408   { -1,  0 },
6409   { +1,  0 },
6410   {  0, -1 },
6411   {  0, +1 }
6412 };
6413
6414
6415 // ----------------------------------------------------------------------------
6416 // functions
6417 // ----------------------------------------------------------------------------
6418
6419 static int getMaxInfoTextLength(void)
6420 {
6421   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
6422 }
6423
6424 static int getTextWidthForGadget(char *text)
6425 {
6426   if (text == NULL)
6427     return 0;
6428
6429   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
6430 }
6431
6432 static int getTextWidthForDrawingArea(char *text)
6433 {
6434   if (text == NULL)
6435     return 0;
6436
6437   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_BORDER_SIZE);
6438 }
6439
6440 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
6441 {
6442   return (gi->x + gi->width + getTextWidthForGadget(text));
6443 }
6444
6445 static char *getElementInfoText(int element)
6446 {
6447   char *info_text = NULL;
6448
6449   if (element < MAX_NUM_ELEMENTS)
6450   {
6451     if (strlen(element_info[element].description) > 0)
6452       info_text = element_info[element].description;
6453     else if (element_info[element].custom_description != NULL)
6454       info_text = element_info[element].custom_description;
6455     else if (element_info[element].editor_description != NULL)
6456       info_text = element_info[element].editor_description;
6457   }
6458
6459   if (info_text == NULL)
6460     info_text = INFOTEXT_UNKNOWN_ELEMENT;
6461
6462   return info_text;
6463 }
6464
6465 static char *getElementDescriptionFilenameExt(char *basename)
6466 {
6467   char *elements_subdir = ELEMENTS_DIRECTORY;
6468   static char *elements_subdir2 = NULL;
6469   static char *filename = NULL;
6470
6471   if (elements_subdir2 == NULL)
6472     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
6473
6474   checked_free(filename);
6475
6476   // 1st try: look for element description in current level set directory
6477   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
6478   if (fileExists(filename))
6479     return filename;
6480
6481   free(filename);
6482
6483   // 2nd try: look for element description in the game's base directory
6484   filename = getPath3(options.docs_directory, elements_subdir, basename);
6485   if (fileExists(filename))
6486     return filename;
6487
6488   return NULL;
6489 }
6490
6491 static char *getElementDescriptionFilename(int element)
6492 {
6493   char basename[MAX_FILENAME_LEN];
6494   char *filename;
6495
6496   // 1st try: look for element description file for exactly this element
6497   sprintf(basename, "%s.txt", element_info[element].token_name);
6498   filename = getElementDescriptionFilenameExt(basename);
6499   if (filename != NULL)
6500     return filename;
6501
6502   // 2nd try: look for element description file for this element's class
6503   sprintf(basename, "%s.txt", element_info[element].class_name);
6504   filename = getElementDescriptionFilenameExt(basename);
6505   if (filename != NULL)
6506     return filename;
6507
6508   // 3rd try: look for generic fallback text file for any element
6509   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
6510   if (filename != NULL)
6511     return filename;
6512
6513   return NULL;
6514 }
6515
6516 static boolean suppressBorderElement(void)
6517 {
6518   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
6519           lev_fieldx <= MAX_ED_FIELDX &&
6520           lev_fieldy <= MAX_ED_FIELDY);
6521 }
6522
6523 static void InitDynamicEditorElementList(int **elements, int *num_elements)
6524 {
6525   boolean element_found[NUM_FILE_ELEMENTS];
6526   int i, x, y;
6527
6528   // initialize list of used elements to "not used"
6529   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6530     element_found[i] = FALSE;
6531
6532   // find all elements used in current level
6533   for (y = 0; y < lev_fieldy; y++)
6534   {
6535     for (x = 0; x < lev_fieldx; x++)
6536     {
6537       if (Tile[x][y] >= NUM_FILE_ELEMENTS)      // should never happen
6538         continue;
6539
6540       if (IS_MM_WALL(Tile[x][y]))
6541         element_found[map_mm_wall_element(Tile[x][y])] = TRUE;
6542       else
6543         element_found[Tile[x][y]] = TRUE;
6544     }
6545   }
6546
6547   *num_elements = 0;
6548
6549   // count number of elements used in current level
6550   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6551     if (element_found[i])
6552       (*num_elements)++;
6553
6554   // add space for up to 3 more elements for padding that may be needed
6555   *num_elements += 3;
6556
6557   // free memory for old list of elements, if needed
6558   checked_free(*elements);
6559
6560   // allocate memory for new list of elements
6561   *elements = checked_malloc(*num_elements * sizeof(int));
6562
6563   *num_elements = 0;
6564
6565   // add all elements used in current level (non-custom/group/empty elements)
6566   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6567     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) ||
6568                               IS_GROUP_ELEMENT(i) ||
6569                               IS_EMPTY_ELEMENT(i)))
6570       (*elements)[(*num_elements)++] = i;
6571
6572   // add all elements used in current level (custom/group/empty elements)
6573   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6574     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) ||
6575                              IS_GROUP_ELEMENT(i) ||
6576                              IS_EMPTY_ELEMENT(i)))
6577       (*elements)[(*num_elements)++] = i;
6578
6579   while (*num_elements % 4)     // pad with empty elements, if needed
6580     (*elements)[(*num_elements)++] = EL_EMPTY;
6581 }
6582
6583 static void ReinitializeElementList_EnableSections(void)
6584 {
6585   // default: enable all element sections
6586
6587   setup_editor_el_players               = TRUE;
6588   setup_editor_el_boulderdash           = TRUE;
6589   setup_editor_el_boulderdash_native    = TRUE;
6590   setup_editor_el_emerald_mine          = TRUE;
6591   setup_editor_el_emerald_mine_club     = TRUE;
6592   setup_editor_el_more                  = TRUE;
6593   setup_editor_el_sokoban               = TRUE;
6594   setup_editor_el_supaplex              = TRUE;
6595   setup_editor_el_diamond_caves         = TRUE;
6596   setup_editor_el_dx_boulderdash        = TRUE;
6597   setup_editor_el_mirror_magic          = TRUE;
6598   setup_editor_el_deflektor             = TRUE;
6599   setup_editor_el_chars                 = TRUE;
6600   setup_editor_el_steel_chars           = TRUE;
6601
6602   setup_editor_el_custom                = TRUE;
6603   setup_editor_el_user_defined          = TRUE;
6604   setup_editor_el_dynamic               = TRUE;
6605
6606   // now disable all element sections not to be displayed
6607
6608   if (!setup.editor.el_classic)
6609   {
6610     setup_editor_el_players             = FALSE;
6611     setup_editor_el_boulderdash         = FALSE;
6612     setup_editor_el_boulderdash_native  = FALSE;
6613     setup_editor_el_emerald_mine        = FALSE;
6614     setup_editor_el_emerald_mine_club   = FALSE;
6615     setup_editor_el_more                = FALSE;
6616     setup_editor_el_sokoban             = FALSE;
6617     setup_editor_el_supaplex            = FALSE;
6618     setup_editor_el_diamond_caves       = FALSE;
6619     setup_editor_el_dx_boulderdash      = FALSE;
6620     setup_editor_el_mirror_magic        = FALSE;
6621     setup_editor_el_deflektor           = FALSE;
6622     setup_editor_el_chars               = FALSE;
6623     setup_editor_el_steel_chars         = FALSE;
6624   }
6625
6626   if (!setup.editor.el_custom)
6627   {
6628     setup_editor_el_custom              = FALSE;
6629   }
6630
6631   if (!setup.editor.el_user_defined)
6632   {
6633     setup_editor_el_user_defined        = FALSE;
6634   }
6635
6636   if (!setup.editor.el_dynamic)
6637   {
6638     setup_editor_el_dynamic             = FALSE;
6639   }
6640
6641   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
6642   {
6643     setup_editor_el_boulderdash_native  = FALSE;
6644     setup_editor_el_mirror_magic        = FALSE;
6645     setup_editor_el_deflektor           = FALSE;
6646   }
6647   else if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
6648   {
6649     setup_editor_el_players             = FALSE;
6650     setup_editor_el_boulderdash         = FALSE;
6651     setup_editor_el_emerald_mine        = FALSE;
6652     setup_editor_el_emerald_mine_club   = FALSE;
6653     setup_editor_el_more                = FALSE;
6654     setup_editor_el_sokoban             = FALSE;
6655     setup_editor_el_supaplex            = FALSE;
6656     setup_editor_el_diamond_caves       = FALSE;
6657     setup_editor_el_dx_boulderdash      = FALSE;
6658     setup_editor_el_mirror_magic        = FALSE;
6659     setup_editor_el_deflektor           = FALSE;
6660     setup_editor_el_chars               = FALSE;
6661     setup_editor_el_steel_chars         = FALSE;
6662
6663     setup_editor_el_custom              = FALSE;
6664   }
6665   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
6666   {
6667     setup_editor_el_boulderdash         = FALSE;
6668     setup_editor_el_boulderdash_native  = FALSE;
6669     setup_editor_el_more                = FALSE;
6670     setup_editor_el_sokoban             = FALSE;
6671     setup_editor_el_supaplex            = FALSE;
6672     setup_editor_el_diamond_caves       = FALSE;
6673     setup_editor_el_dx_boulderdash      = FALSE;
6674     setup_editor_el_mirror_magic        = FALSE;
6675     setup_editor_el_deflektor           = FALSE;
6676     setup_editor_el_steel_chars         = FALSE;
6677
6678     setup_editor_el_custom              = FALSE;
6679   }
6680   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
6681   {
6682     setup_editor_el_players             = FALSE;
6683     setup_editor_el_boulderdash         = FALSE;
6684     setup_editor_el_boulderdash_native  = FALSE;
6685     setup_editor_el_emerald_mine        = FALSE;
6686     setup_editor_el_emerald_mine_club   = FALSE;
6687     setup_editor_el_more                = FALSE;
6688     setup_editor_el_sokoban             = FALSE;
6689     setup_editor_el_diamond_caves       = FALSE;
6690     setup_editor_el_dx_boulderdash      = FALSE;
6691     setup_editor_el_mirror_magic        = FALSE;
6692     setup_editor_el_deflektor           = FALSE;
6693     setup_editor_el_chars               = FALSE;
6694     setup_editor_el_steel_chars         = FALSE;
6695
6696     setup_editor_el_custom              = FALSE;
6697   }
6698   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
6699   {
6700     setup_editor_el_players             = FALSE;
6701     setup_editor_el_boulderdash         = FALSE;
6702     setup_editor_el_boulderdash_native  = FALSE;
6703     setup_editor_el_emerald_mine        = FALSE;
6704     setup_editor_el_emerald_mine_club   = FALSE;
6705     setup_editor_el_more                = FALSE;
6706     setup_editor_el_sokoban             = FALSE;
6707     setup_editor_el_supaplex            = FALSE;
6708     setup_editor_el_diamond_caves       = FALSE;
6709     setup_editor_el_dx_boulderdash      = FALSE;
6710     setup_editor_el_steel_chars         = FALSE;
6711
6712     setup_editor_el_custom              = FALSE;
6713   }
6714 }
6715
6716 static void ReinitializeElementList(void)
6717 {
6718   static boolean initialization_needed = TRUE;
6719   int pos = 0;
6720   int i, j;
6721
6722   ReinitializeElementList_EnableSections();
6723
6724   if (initialization_needed)
6725   {
6726     LoadSetup_EditorCascade();          // load last editor cascade state
6727
6728     // initialize editor cascade element from saved cascade state
6729     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6730     {
6731       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
6732       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
6733
6734       if (IS_EDITOR_CASCADE(*cascade_element))
6735         *cascade_element =
6736           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
6737            EL_CASCADE_INACTIVE(*cascade_element));
6738     }
6739
6740     initialization_needed = FALSE;
6741   }
6742
6743   checked_free(editor_elements);
6744
6745   // reload optional user defined element list for each invocation of editor
6746   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
6747                                    &num_editor_el_user_defined);
6748
6749   // initialize dynamic level element list for each invocation of editor
6750   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
6751                                &num_editor_el_dynamic);
6752
6753   // initialize list of empty elements (used for padding, if needed)
6754   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6755     editor_el_empty[i] = EL_EMPTY;
6756
6757   // do some sanity checks for each element from element list
6758   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6759   {
6760     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6761     {
6762       int element = (*editor_elements_info[i].element_list)[j];
6763
6764       if (element >= NUM_FILE_ELEMENTS)
6765         Warn("editor element %d is runtime element", element);
6766
6767       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
6768         Warn("no element description text for element %d", element);
6769     }
6770   }
6771
6772   num_editor_elements = 0;
6773   use_el_empty = FALSE;
6774
6775   // determine size of element list
6776   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6777   {
6778     if (*editor_elements_info[i].setup_value)
6779     {
6780       boolean found_inactive_cascade = FALSE;
6781
6782       if (setup.editor.el_headlines)
6783       {
6784         // required for correct padding of palette headline buttons
6785         if (*editor_elements_info[i].headline_list_size > 0)
6786           num_editor_elements += ED_ELEMENTLIST_COLS;
6787
6788         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6789         {
6790           int element = (*editor_elements_info[i].headline_list)[j];
6791
6792           if (IS_EDITOR_CASCADE_INACTIVE(element))
6793             found_inactive_cascade = TRUE;
6794         }
6795       }
6796
6797       if (found_inactive_cascade)
6798         continue;
6799
6800       // required for correct padding of palette element buttons
6801       int element_list_size = *editor_elements_info[i].element_list_size;
6802       int element_rows =
6803         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6804       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6805
6806       num_editor_elements += element_buttons;
6807     }
6808   }
6809
6810   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
6811   {
6812     // offer at least as many elements as element buttons exist
6813     use_el_empty = TRUE;
6814     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
6815
6816     num_editor_elements += num_editor_el_empty;
6817   }
6818   else
6819   {
6820     num_editor_el_empty = 0;
6821   }
6822
6823   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
6824
6825   // fill element list
6826   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6827   {
6828     boolean found_inactive_cascade = FALSE;
6829
6830     if (*editor_elements_info[i].setup_value)
6831     {
6832       if (setup.editor.el_headlines)
6833       {
6834         // required for correct padding of palette headline buttons
6835         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
6836                              ED_ELEMENTLIST_COLS : 0);
6837
6838         for (j = 0; j < headline_size; j++)
6839         {
6840           // use empty elements for padding of palette headline buttons
6841           int element = (j < *editor_elements_info[i].headline_list_size ?
6842                          (*editor_elements_info[i].headline_list)[j] :
6843                          editor_el_empty[0]);
6844
6845           editor_elements[pos++] = element;
6846
6847           if (IS_EDITOR_CASCADE_INACTIVE(element))
6848             found_inactive_cascade = TRUE;
6849         }
6850       }
6851
6852       if (found_inactive_cascade)
6853         continue;
6854
6855       // required for correct padding of palette element buttons
6856       int element_list_size = *editor_elements_info[i].element_list_size;
6857       int element_rows =
6858         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6859       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6860
6861       // copy all elements from element list
6862       for (j = 0; j < element_list_size; j++)
6863         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
6864
6865       // use empty elements for padding of palette element buttons
6866       for (j = 0; j < element_buttons - element_list_size; j++)
6867         editor_elements[pos++] = editor_el_empty[0];
6868     }
6869   }
6870
6871   // (this function is also called before editor gadgets are initialized!)
6872   AdjustElementListScrollbar();
6873 }
6874
6875 void PrintEditorElementList(void)
6876 {
6877   boolean *stop = &setup_editor_el_user_defined;
6878   int i, j;
6879
6880   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
6881   {
6882     int cascade_element = (*editor_elements_info[i].headline_list)[0];
6883
6884     if (IS_EDITOR_CASCADE(cascade_element))
6885     {
6886       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
6887       char *headline = element_info[cascade_element_show].editor_description;
6888
6889       PrintLineWithPrefix("# ", "-", 77);
6890       Print("# %s\n", headline);
6891       PrintLineWithPrefix("# ", "-", 77);
6892     }
6893
6894     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6895     {
6896       int element = (*editor_elements_info[i].headline_list)[j];
6897
6898       if (IS_EDITOR_CASCADE(element))
6899         element = EL_CHAR_MINUS;
6900
6901       Print("# %s\n", element_info[element].token_name);
6902     }
6903
6904     if (j > 0)
6905       Print("#\n");
6906
6907     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6908     {
6909       int element = (*editor_elements_info[i].element_list)[j];
6910
6911       Print("# %s\n", element_info[element].token_name);
6912     }
6913
6914     if (j > 0)
6915       Print("#\n");
6916   }
6917 }
6918
6919 static void ReinitializeElementListButtons(void)
6920 {
6921   static boolean last_setup_value_headlines = FALSE;
6922   static boolean initialization_needed = TRUE;
6923   int i;
6924
6925   if (!initialization_needed)   // check if editor element setup has changed
6926   {
6927     if (last_setup_value_headlines != setup.editor.el_headlines)
6928       initialization_needed = TRUE;
6929
6930     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6931       if (editor_elements_info[i].last_setup_value !=
6932           *editor_elements_info[i].setup_value)
6933         initialization_needed = TRUE;
6934   }
6935
6936   if (!initialization_needed)
6937     return;
6938
6939   FreeLevelEditorGadgets();
6940   CreateLevelEditorGadgets();
6941
6942   // store current setup values for next invocation of this function
6943   last_setup_value_headlines = setup.editor.el_headlines;
6944   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6945     editor_elements_info[i].last_setup_value =
6946       *editor_elements_info[i].setup_value;
6947
6948   initialization_needed = FALSE;
6949 }
6950
6951 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
6952                               boolean input)
6953 {
6954   int border_graphic =
6955     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
6956   struct GraphicInfo *g = &graphic_info[border_graphic];
6957   Bitmap *src_bitmap = g->bitmap;
6958   int src_x = g->src_x;
6959   int src_y = g->src_y;
6960   int border_size = g->border_size;
6961   int border_xpos = g->width  - border_size;
6962   int border_ypos = g->height - border_size;
6963   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6964   int i;
6965
6966   BlitBitmap(src_bitmap, drawto, src_x, src_y,
6967              border_size, border_size,
6968              dest_x - border_size, dest_y - border_size);
6969   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
6970              border_size, border_size,
6971              dest_x + width, dest_y - border_size);
6972   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
6973              border_size, border_size,
6974              dest_x - border_size, dest_y + height);
6975   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
6976              border_size, border_size,
6977              dest_x + width, dest_y + height);
6978
6979   for (i = 0; i < width / tilesize; i++)
6980   {
6981     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
6982                tilesize, border_size,
6983                dest_x + i * tilesize, dest_y - border_size);
6984     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
6985                tilesize, border_size,
6986                dest_x + i * tilesize, dest_y + height);
6987   }
6988
6989   for (i = 0; i < height / tilesize; i++)
6990   {
6991     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
6992                border_size, tilesize,
6993                dest_x - border_size, dest_y + i * tilesize);
6994     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
6995                border_size, tilesize,
6996                dest_x + width, dest_y + i * tilesize);
6997   }
6998
6999   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
7000 }
7001
7002 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
7003 {
7004   int xsize_tile = MAX(ed_tilesize, xsize);
7005   int ysize_tile = MAX(ed_tilesize, ysize);
7006   int xsize_full = xsize + 1;
7007   int ysize_full = ysize + 1;
7008   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
7009   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
7010   Pixel line_color = getTabulatorBarColor();
7011
7012   if (line_color == BLACK_PIXEL)                // black => transparent
7013     return;
7014
7015   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
7016   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
7017   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
7018 }
7019
7020 static void DrawEditorLevelBorderLinesIfNeeded(void)
7021 {
7022   int xsize = lev_fieldx * ed_tilesize;
7023   int ysize = lev_fieldy * ed_tilesize;
7024   int line_size = getTabulatorBarHeight();
7025
7026   if (!suppressBorderElement())
7027     return;
7028
7029   // draw little border line around editable level playfield
7030
7031   if (xsize < SXSIZE)
7032     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
7033
7034   if (ysize < SYSIZE)
7035     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
7036
7037   if (xsize < SXSIZE && ysize < SYSIZE)
7038     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
7039 }
7040
7041 static void DrawEditorElement(int x, int y, int element)
7042 {
7043   DrawSizedElement(x, y, element, ed_tilesize);
7044 }
7045
7046 static void DrawEditorElementThruMask(int x, int y, int element)
7047 {
7048   DrawSizedElementThruMask(x, y, element, ed_tilesize);
7049 }
7050
7051 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
7052 {
7053   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
7054 }
7055
7056 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
7057 {
7058   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
7059   DrawEditorLevelBorderLinesIfNeeded();
7060 }
7061
7062 static void DrawDrawingArea(int id)
7063 {
7064   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7065   int x, y;
7066
7067   int *value = drawingarea_info[id].value;
7068   int area_xsize = drawingarea_info[id].area_xsize;
7069   int area_ysize = drawingarea_info[id].area_ysize;
7070   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7071
7072   for (x = 0; x < area_xsize; x++)
7073     for (y = 0; y < area_ysize; y++)
7074       DrawSizedGraphicExt(drawto,
7075                           gi->x + x * tilesize,
7076                           gi->y + y * tilesize,
7077                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
7078 }
7079
7080 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
7081 {
7082   int x, y;
7083   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
7084   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
7085
7086   BlitBitmap(drawto, drawto,
7087              SX + (dx == -1 ? ed_tilesize : 0),
7088              SY + (dy == -1 ? ed_tilesize : 0),
7089              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
7090              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
7091              SX + (dx == +1 ? ed_tilesize : 0),
7092              SY + (dy == +1 ? ed_tilesize : 0));
7093
7094   if (dx)
7095   {
7096     x = (dx == 1 ? 0 : ed_fieldx - 1);
7097     for (y = 0; y < ed_fieldy; y++)
7098       DrawEditorElementOrWall(x, y, from_x, from_y);
7099   }
7100   else if (dy)
7101   {
7102     y = (dy == 1 ? 0 : ed_fieldy - 1);
7103     for (x = 0; x < ed_fieldx; x++)
7104       DrawEditorElementOrWall(x, y, from_x, from_y);
7105   }
7106
7107   redraw_mask |= REDRAW_FIELD;
7108   BackToFront();
7109 }
7110
7111 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
7112                                    int *x, int *y)
7113 {
7114   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
7115 }
7116
7117 static void CreateControlButtons(void)
7118 {
7119   struct GadgetInfo *gi;
7120   int i;
7121
7122   // create toolbox buttons
7123   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7124   {
7125     int type_id = controlbutton_info[i].gadget_id;      // same as gadget ID here
7126     int id = controlbutton_info[i].gadget_id;
7127     int type = controlbutton_info[i].gadget_type;
7128     int graphic = controlbutton_info[i].graphic;
7129     struct XYTileSize *pos = controlbutton_info[i].pos;
7130     struct GraphicInfo *gd = &graphic_info[graphic];
7131     Bitmap *deco_bitmap = NULL;
7132     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
7133     int tile_size = 0, deco_shift = 0;
7134     boolean deco_masked = FALSE;
7135     int gd_x1 = gd->src_x;
7136     int gd_y1 = gd->src_y;
7137     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7138     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7139     int gd_x1a = gd->src_x + gd->active_xoffset;
7140     int gd_y1a = gd->src_y + gd->active_yoffset;
7141     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7142     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7143     int x = pos->x;
7144     int y = pos->y;
7145     unsigned int event_mask;
7146     int radio_button_nr = RADIO_NR_NONE;
7147     boolean checked = FALSE;
7148
7149     if (type_id != i)
7150       Fail("'controlbutton_info' structure corrupted at index %d -- please fix", i);
7151
7152     if (type == GD_TYPE_RADIO_BUTTON)
7153     {
7154       event_mask = GD_EVENT_PRESSED;
7155       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
7156
7157       if (id == drawing_function)
7158         checked = TRUE;
7159     }
7160     else
7161     {
7162       if (id == GADGET_ID_WRAP_LEFT ||
7163           id == GADGET_ID_WRAP_RIGHT ||
7164           id == GADGET_ID_WRAP_UP ||
7165           id == GADGET_ID_WRAP_DOWN)
7166         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7167       else
7168         event_mask = GD_EVENT_RELEASED;
7169     }
7170
7171     if (id == GADGET_ID_PROPERTIES ||
7172         id == GADGET_ID_PALETTE)
7173     {
7174       x += DX;
7175       y += DY;
7176     }
7177     else if (id == GADGET_ID_ELEMENT_LEFT ||
7178              id == GADGET_ID_ELEMENT_MIDDLE ||
7179              id == GADGET_ID_ELEMENT_RIGHT)
7180     {
7181       x += DX;
7182       y += DY;
7183
7184       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
7185                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
7186                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
7187
7188       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
7189                                    editor.button.element_left.tile_size :
7190                                    id == GADGET_ID_ELEMENT_MIDDLE ?
7191                                    editor.button.element_middle.tile_size :
7192                                    id == GADGET_ID_ELEMENT_RIGHT ?
7193                                    editor.button.element_right.tile_size : 0);
7194
7195       // make sure that decoration does not overlap gadget border
7196       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
7197
7198       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
7199
7200       deco_xpos = (gd->width  - tile_size) / 2;
7201       deco_ypos = (gd->height - tile_size) / 2;
7202       deco_shift = 1;
7203       deco_masked = gd->draw_masked;
7204     }
7205     else
7206     {
7207       x += EX;
7208       y += EY;
7209     }
7210
7211     gi = CreateGadget(GDI_CUSTOM_ID, id,
7212                       GDI_CUSTOM_TYPE_ID, type_id,
7213                       GDI_IMAGE_ID, graphic,
7214                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
7215                       GDI_X, x,
7216                       GDI_Y, y,
7217                       GDI_WIDTH, gd->width,
7218                       GDI_HEIGHT, gd->height,
7219                       GDI_TYPE, type,
7220                       GDI_STATE, GD_BUTTON_UNPRESSED,
7221                       GDI_RADIO_NR, radio_button_nr,
7222                       GDI_CHECKED, checked,
7223                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7224                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7225                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7226                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7227                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7228                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7229                       GDI_DECORATION_SIZE, tile_size, tile_size,
7230                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
7231                       GDI_DECORATION_MASKED, deco_masked,
7232                       GDI_EVENT_MASK, event_mask,
7233                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7234                       GDI_CALLBACK_ACTION, HandleControlButtons,
7235                       GDI_END);
7236
7237     if (gi == NULL)
7238       Fail("cannot create gadget");
7239
7240     level_editor_gadget[id] = gi;
7241   }
7242
7243   // these values are not constant, but can change at runtime
7244   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
7245   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
7246   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
7247   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
7248   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
7249   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
7250   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
7251   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
7252   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
7253   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
7254   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
7255   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
7256
7257   // create buttons for scrolling of drawing area and element list
7258   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
7259   {
7260     int id = scrollbutton_info[i].gadget_id;
7261     int type_id = scrollbutton_info[i].gadget_type_id;
7262     int graphic = scrollbutton_info[i].graphic;
7263     struct GraphicInfo *gd = &graphic_info[graphic];
7264     Bitmap *gd_bitmap = gd->bitmap;
7265     int gd_x1 = gd->src_x;
7266     int gd_y1 = gd->src_y;
7267     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7268     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7269     int width  = gd->width;
7270     int height = gd->height;
7271     int x = scrollbutton_pos[i].x;
7272     int y = scrollbutton_pos[i].y;
7273     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7274
7275     if (type_id != i)
7276       Fail("'scrollbutton_info' structure corrupted at index %d -- please fix", i);
7277
7278     if (id == GADGET_ID_SCROLL_LIST_UP ||
7279         id == GADGET_ID_SCROLL_LIST_DOWN)
7280     {
7281       x += PX;
7282       y += PY;
7283     }
7284     else
7285     {
7286       x += SX;
7287       y += SY;
7288     }
7289
7290     gi = CreateGadget(GDI_CUSTOM_ID, id,
7291                       GDI_CUSTOM_TYPE_ID, type_id,
7292                       GDI_IMAGE_ID, graphic,
7293                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
7294                       GDI_X, x,
7295                       GDI_Y, y,
7296                       GDI_WIDTH, width,
7297                       GDI_HEIGHT, height,
7298                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7299                       GDI_STATE, GD_BUTTON_UNPRESSED,
7300                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7301                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7302                       GDI_EVENT_MASK, event_mask,
7303                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7304                       GDI_CALLBACK_ACTION, HandleControlButtons,
7305                       GDI_END);
7306
7307     if (gi == NULL)
7308       Fail("cannot create gadget");
7309
7310     level_editor_gadget[id] = gi;
7311   }
7312
7313   // create buttons for element list
7314   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7315   {
7316     int type_id = i;
7317     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
7318     int graphic = IMG_EDITOR_PALETTE_BUTTON;
7319     struct GraphicInfo *gd = &graphic_info[graphic];
7320     Bitmap *gd_bitmap = gd->bitmap;
7321     Bitmap *deco_bitmap;
7322     int deco_x, deco_y, deco_xpos, deco_ypos;
7323     int gd_x1 = gd->src_x;
7324     int gd_y1 = gd->src_y;
7325     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7326     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7327     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
7328     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
7329     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
7330     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
7331     int element = editor_elements[i];
7332     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
7333     unsigned int event_mask = GD_EVENT_RELEASED;
7334
7335     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
7336
7337     deco_xpos = (gd->width  - tile_size) / 2;
7338     deco_ypos = (gd->height - tile_size) / 2;
7339
7340     gi = CreateGadget(GDI_CUSTOM_ID, id,
7341                       GDI_CUSTOM_TYPE_ID, type_id,
7342                       GDI_IMAGE_ID, graphic,
7343                       GDI_INFO_TEXT, getElementInfoText(element),
7344                       GDI_X, x,
7345                       GDI_Y, y,
7346                       GDI_WIDTH, gd->width,
7347                       GDI_HEIGHT, gd->height,
7348                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7349                       GDI_STATE, GD_BUTTON_UNPRESSED,
7350                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7351                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7352                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7353                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7354                       GDI_DECORATION_SIZE, tile_size, tile_size,
7355                       GDI_DECORATION_SHIFTING, 1, 1,
7356                       GDI_EVENT_MASK, event_mask,
7357                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7358                       GDI_CALLBACK_ACTION, HandleControlButtons,
7359                       GDI_END);
7360
7361     if (gi == NULL)
7362       Fail("cannot create gadget");
7363
7364     level_editor_gadget[id] = gi;
7365   }
7366 }
7367
7368 static void CreateCounterButtons(void)
7369 {
7370   int max_infotext_len = getMaxInfoTextLength();
7371   int i;
7372
7373   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
7374   {
7375     int type_id = counterbutton_info[i].gadget_type_id;
7376     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
7377     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
7378     int j;
7379
7380     if (type_id != i)
7381       Fail("'counterbutton_info' structure corrupted at index %d -- please fix", i);
7382
7383     // determine horizontal position to the right of specified gadget
7384     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7385       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
7386            ED_GADGET_TEXT_DISTANCE);
7387
7388     // determine horizontal offset for leading text
7389     if (counterbutton_info[i].text_left != NULL)
7390       x += getTextWidthForGadget(counterbutton_info[i].text_left);
7391
7392     for (j = 0; j < 2; j++)
7393     {
7394       struct GadgetInfo *gi;
7395       int id = (j == 0 ?
7396                 counterbutton_info[i].gadget_id_down :
7397                 counterbutton_info[i].gadget_id_up);
7398       int graphic;
7399       struct GraphicInfo *gd;
7400       int gd_x1, gd_x2, gd_y1, gd_y2;
7401       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7402       char infotext[max_infotext_len + 1];
7403
7404       if (i == ED_COUNTER_ID_SELECT_LEVEL)
7405       {
7406         graphic = (j == 0 ?
7407                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
7408                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
7409
7410         event_mask |= GD_EVENT_RELEASED;
7411
7412         if (j == 0)
7413         {
7414           x = DX + editor.button.prev_level.x;
7415           y = DY + editor.button.prev_level.y;
7416         }
7417         else
7418         {
7419           x = DX + editor.button.next_level.x;
7420           y = DY + editor.button.next_level.y;
7421         }
7422       }
7423       else
7424       {
7425         graphic = (j == 0 ?
7426                    IMG_EDITOR_COUNTER_DOWN :
7427                    IMG_EDITOR_COUNTER_UP);
7428       }
7429
7430       gd = &graphic_info[graphic];
7431
7432       gd_x1 = gd->src_x;
7433       gd_y1 = gd->src_y;
7434       gd_x2 = gd->src_x + gd->pressed_xoffset;
7435       gd_y2 = gd->src_y + gd->pressed_yoffset;
7436
7437       sprintf(infotext, "%s counter value by 1, 5 or 10",
7438               (j == 0 ? "decrease" : "increase"));
7439
7440       gi = CreateGadget(GDI_CUSTOM_ID, id,
7441                         GDI_CUSTOM_TYPE_ID, type_id,
7442                         GDI_IMAGE_ID, graphic,
7443                         GDI_INFO_TEXT, infotext,
7444                         GDI_X, x,
7445                         GDI_Y, y,
7446                         GDI_WIDTH, gd->width,
7447                         GDI_HEIGHT, gd->height,
7448                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7449                         GDI_STATE, GD_BUTTON_UNPRESSED,
7450                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7451                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7452                         GDI_EVENT_MASK, event_mask,
7453                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7454                         GDI_CALLBACK_ACTION, HandleCounterButtons,
7455                         GDI_END);
7456
7457       if (gi == NULL)
7458         Fail("cannot create gadget");
7459
7460       level_editor_gadget[id] = gi;
7461       right_gadget_border[id] =
7462         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7463
7464       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
7465
7466       if (j == 0)
7467       {
7468         int font_type = FONT_INPUT_1;
7469         int font_type_active = FONT_INPUT_1_ACTIVE;
7470
7471         id = counterbutton_info[i].gadget_id_text;
7472
7473         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7474
7475         if (i == ED_COUNTER_ID_SELECT_LEVEL)
7476         {
7477           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
7478
7479           font_type = FONT_LEVEL_NUMBER;
7480           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
7481
7482           x = DX + editor.input.level_number.x;
7483           y = DY + editor.input.level_number.y;
7484         }
7485         else
7486         {
7487           graphic = IMG_EDITOR_COUNTER_INPUT;
7488         }
7489
7490         gd = &graphic_info[graphic];
7491
7492         gd_x1 = gd->src_x;
7493         gd_y1 = gd->src_y;
7494         gd_x2 = gd->src_x + gd->active_xoffset;
7495         gd_y2 = gd->src_y + gd->active_yoffset;
7496
7497         gi = CreateGadget(GDI_CUSTOM_ID, id,
7498                           GDI_CUSTOM_TYPE_ID, type_id,
7499                           GDI_IMAGE_ID, graphic,
7500                           GDI_INFO_TEXT, "enter counter value",
7501                           GDI_X, x,
7502                           GDI_Y, y,
7503                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
7504                           GDI_NUMBER_VALUE, 0,
7505                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
7506                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
7507                           GDI_TEXT_SIZE, 3,     // minimal counter text size
7508                           GDI_TEXT_FONT, font_type,
7509                           GDI_TEXT_FONT_ACTIVE, font_type_active,
7510                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7511                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7512                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7513                           GDI_DESIGN_WIDTH, gd->width,
7514                           GDI_EVENT_MASK, event_mask,
7515                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7516                           GDI_CALLBACK_ACTION, HandleCounterButtons,
7517                           GDI_END);
7518
7519         if (gi == NULL)
7520           Fail("cannot create gadget");
7521
7522         level_editor_gadget[id] = gi;
7523         right_gadget_border[id] =
7524           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7525
7526         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
7527       }
7528     }
7529   }
7530 }
7531
7532 static void CreateDrawingAreas(void)
7533 {
7534   int i;
7535
7536   // these values are not constant, but can change at runtime
7537   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
7538   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
7539
7540   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
7541   {
7542     struct GadgetInfo *gi;
7543     int id = drawingarea_info[i].gadget_id;
7544     int type_id = drawingarea_info[i].gadget_type_id;
7545     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
7546     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
7547     int area_xsize = drawingarea_info[i].area_xsize;
7548     int area_ysize = drawingarea_info[i].area_ysize;
7549     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
7550                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
7551     unsigned int event_mask =
7552       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
7553       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
7554
7555     if (type_id != i)
7556       Fail("'drawingarea_info' structure corrupted at index %d -- please fix", i);
7557
7558     // determine horizontal position to the right of specified gadget
7559     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
7560       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
7561            ED_DRAWINGAREA_TEXT_DISTANCE);
7562
7563     // determine horizontal offset for leading text
7564     if (drawingarea_info[i].text_left != NULL)
7565       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
7566
7567     gi = CreateGadget(GDI_CUSTOM_ID, id,
7568                       GDI_CUSTOM_TYPE_ID, type_id,
7569                       GDI_X, x,
7570                       GDI_Y, y,
7571                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
7572                       GDI_AREA_SIZE, area_xsize, area_ysize,
7573                       GDI_ITEM_SIZE, item_size, item_size,
7574                       GDI_EVENT_MASK, event_mask,
7575                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
7576                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
7577                       GDI_END);
7578
7579     if (gi == NULL)
7580       Fail("cannot create gadget");
7581
7582     level_editor_gadget[id] = gi;
7583     right_gadget_border[id] =
7584       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
7585   }
7586 }
7587
7588 static void CreateTextInputGadgets(void)
7589 {
7590   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
7591   int max_infotext_len = getMaxInfoTextLength();
7592   int i;
7593
7594   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
7595   {
7596     int gd_x1 = gd->src_x;
7597     int gd_y1 = gd->src_y;
7598     int gd_x2 = gd->src_x + gd->active_xoffset;
7599     int gd_y2 = gd->src_y + gd->active_yoffset;
7600     struct GadgetInfo *gi;
7601     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7602     char infotext[MAX_OUTPUT_LINESIZE + 1];
7603     int id = textinput_info[i].gadget_id;
7604     int type_id = textinput_info[i].gadget_type_id;
7605     int x, y;
7606
7607     if (type_id != i)
7608       Fail("'textinput_info' structure corrupted at index %d -- please fix", i);
7609
7610     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
7611     {
7612       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
7613       int border_size = gd->border_size;
7614       int font_nr = FONT_INPUT_1;
7615       int font_height = getFontHeight(font_nr);
7616       int xoffset = element_border + TILEX + element_border + 3 * border_size;
7617       int yoffset = element_border + (TILEY - font_height) / 2;
7618
7619       x = (editor.settings.element_name.x != -1 ?
7620            editor.settings.element_name.x :
7621            editor.settings.element_graphic.x + xoffset) - border_size;
7622       y = (editor.settings.element_name.y != -1 ?
7623            editor.settings.element_name.y :
7624            editor.settings.element_graphic.y + yoffset) - border_size;
7625     }
7626     else
7627     {
7628       x = ED_SETTINGS_X(textinput_info[i].x);
7629       y = ED_SETTINGS_Y(textinput_info[i].y);
7630     }
7631
7632     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
7633     infotext[max_infotext_len] = '\0';
7634
7635     gi = CreateGadget(GDI_CUSTOM_ID, id,
7636                       GDI_CUSTOM_TYPE_ID, type_id,
7637                       GDI_INFO_TEXT, infotext,
7638                       GDI_X, SX + x,
7639                       GDI_Y, SY + y,
7640                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
7641                       GDI_TEXT_VALUE, textinput_info[i].value,
7642                       GDI_TEXT_SIZE, textinput_info[i].size,
7643                       GDI_TEXT_FONT, FONT_INPUT_1,
7644                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7645                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7646                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7647                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7648                       GDI_DESIGN_WIDTH, gd->width,
7649                       GDI_EVENT_MASK, event_mask,
7650                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7651                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
7652                       GDI_END);
7653
7654     if (gi == NULL)
7655       Fail("cannot create gadget");
7656
7657     level_editor_gadget[id] = gi;
7658   }
7659 }
7660
7661 static void CreateTextAreaGadgets(void)
7662 {
7663   int max_infotext_len = getMaxInfoTextLength();
7664   int i;
7665
7666   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
7667   {
7668     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
7669     int gd_x1 = gd->src_x;
7670     int gd_y1 = gd->src_y;
7671     int gd_x2 = gd->src_x + gd->active_xoffset;
7672     int gd_y2 = gd->src_y + gd->active_yoffset;
7673     struct GadgetInfo *gi;
7674     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
7675     char infotext[MAX_OUTPUT_LINESIZE + 1];
7676     int id = textarea_info[i].gadget_id;
7677     int type_id = textarea_info[i].gadget_type_id;
7678     int area_xsize = textarea_info[i].xsize;
7679     int area_ysize = textarea_info[i].ysize;
7680
7681     if (type_id != i)
7682       Fail("'textarea_info' structure corrupted at index %d -- please fix", i);
7683
7684     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
7685     infotext[max_infotext_len] = '\0';
7686
7687     gi = CreateGadget(GDI_CUSTOM_ID, id,
7688                       GDI_CUSTOM_TYPE_ID, type_id,
7689                       GDI_INFO_TEXT, infotext,
7690                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
7691                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
7692                       GDI_TYPE, GD_TYPE_TEXT_AREA,
7693                       GDI_AREA_SIZE, area_xsize, area_ysize,
7694                       GDI_TEXT_FONT, FONT_INPUT_1,
7695                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7696                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7697                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7698                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7699                       GDI_DESIGN_WIDTH, gd->width,
7700                       GDI_EVENT_MASK, event_mask,
7701                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7702                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
7703                       GDI_END);
7704
7705     if (gi == NULL)
7706       Fail("cannot create gadget");
7707
7708     level_editor_gadget[id] = gi;
7709   }
7710 }
7711
7712 static void CreateSelectboxGadgets(void)
7713 {
7714   int max_infotext_len = getMaxInfoTextLength();
7715   int i, j;
7716
7717   for (i = 0; i < ED_NUM_SELECTBOX; i++)
7718   {
7719     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
7720     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
7721     int gd_x1 = gd->src_x;
7722     int gd_y1 = gd->src_y;
7723     int gd_x2 = gd->src_x + gd->active_xoffset;
7724     int gd_y2 = gd->src_y + gd->active_yoffset;
7725     int selectbox_button_xsize = gd2->width;
7726     struct GadgetInfo *gi;
7727     char infotext[MAX_OUTPUT_LINESIZE + 1];
7728     int id = selectbox_info[i].gadget_id;
7729     int type_id = selectbox_info[i].gadget_type_id;
7730     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
7731     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
7732     unsigned int event_mask =
7733       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7734
7735     if (type_id != i)
7736       Fail("'selectbox_info' structure corrupted at index %d -- please fix", i);
7737
7738     if (selectbox_info[i].size == -1)   // dynamically determine size
7739     {
7740       // (we cannot use -1 for uninitialized values if we directly compare
7741       // with results from strlen(), because the '<' and '>' operation will
7742       // implicitely cast -1 to an unsigned integer value!)
7743       selectbox_info[i].size = 0;
7744
7745       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
7746         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
7747           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
7748
7749       selectbox_info[i].size++;         // add one character empty space
7750     }
7751
7752     // determine horizontal position to the right of specified gadget
7753     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
7754       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
7755            ED_GADGET_TEXT_DISTANCE);
7756
7757     // determine horizontal offset for leading text
7758     if (selectbox_info[i].text_left != NULL)
7759       x += getTextWidthForGadget(selectbox_info[i].text_left);
7760
7761     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
7762     infotext[max_infotext_len] = '\0';
7763
7764     gi = CreateGadget(GDI_CUSTOM_ID, id,
7765                       GDI_CUSTOM_TYPE_ID, type_id,
7766                       GDI_INFO_TEXT, infotext,
7767                       GDI_X, x,
7768                       GDI_Y, y,
7769                       GDI_TYPE, GD_TYPE_SELECTBOX,
7770                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
7771                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
7772                       GDI_TEXT_SIZE, selectbox_info[i].size,
7773                       GDI_TEXT_FONT, FONT_INPUT_1,
7774                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7775                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
7776                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7777                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7778                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7779                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
7780                       GDI_DESIGN_WIDTH, gd->width,
7781                       GDI_EVENT_MASK, event_mask,
7782                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7783                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
7784                       GDI_END);
7785
7786     if (gi == NULL)
7787       Fail("cannot create gadget");
7788
7789     level_editor_gadget[id] = gi;
7790     right_gadget_border[id] =
7791       getRightGadgetBorder(gi, selectbox_info[i].text_right);
7792   }
7793 }
7794
7795 static void CreateTextbuttonGadgets(void)
7796 {
7797   int max_infotext_len = getMaxInfoTextLength();
7798   int i;
7799
7800   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
7801   {
7802     int id = textbutton_info[i].gadget_id;
7803     int type_id = textbutton_info[i].gadget_type_id;
7804     int is_tab_button =
7805       ((id >= GADGET_ID_LEVELCONFIG_LEVEL && id <= GADGET_ID_LEVELCONFIG_ENGINE) ||
7806        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
7807     int graphic =
7808       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
7809     int gadget_distance =
7810       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
7811     struct GraphicInfo *gd = &graphic_info[graphic];
7812     int gd_x1 = gd->src_x;
7813     int gd_y1 = gd->src_y;
7814     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7815     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7816     int gd_x1a = gd->src_x + gd->active_xoffset;
7817     int gd_y1a = gd->src_y + gd->active_yoffset;
7818     int border_xsize = gd->border_size + gd->draw_xoffset;
7819     int border_ysize = gd->border_size;
7820     struct GadgetInfo *gi;
7821     unsigned int event_mask = GD_EVENT_RELEASED;
7822     char infotext[MAX_OUTPUT_LINESIZE + 1];
7823     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
7824     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
7825
7826     if (type_id != i)
7827       Fail("'textbutton_info' structure corrupted at index %d -- please fix", i);
7828
7829     if (textbutton_info[i].size == -1)  // dynamically determine size
7830       textbutton_info[i].size = strlen(textbutton_info[i].text);
7831
7832     sprintf(infotext, "%s", textbutton_info[i].infotext);
7833     infotext[max_infotext_len] = '\0';
7834
7835     // determine horizontal position to the right of specified gadget
7836     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7837     {
7838       int gadget_id_align = textbutton_info[i].gadget_id_align;
7839
7840       x = right_gadget_border[gadget_id_align] + gadget_distance;
7841
7842       if (textbutton_info[i].y == -1)
7843         y = level_editor_gadget[gadget_id_align]->y;
7844     }
7845
7846     // determine horizontal offset for leading text
7847     if (textbutton_info[i].text_left != NULL)
7848       x += getTextWidthForGadget(textbutton_info[i].text_left);
7849
7850     gi = CreateGadget(GDI_CUSTOM_ID, id,
7851                       GDI_CUSTOM_TYPE_ID, type_id,
7852                       GDI_IMAGE_ID, graphic,
7853                       GDI_INFO_TEXT, infotext,
7854                       GDI_X, x,
7855                       GDI_Y, y,
7856                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
7857                       GDI_TEXT_VALUE, textbutton_info[i].text,
7858                       GDI_TEXT_SIZE, textbutton_info[i].size,
7859                       GDI_TEXT_FONT, FONT_INPUT_2,
7860                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
7861                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7862                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7863                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7864                       GDI_BORDER_SIZE, border_xsize, border_ysize,
7865                       GDI_DESIGN_WIDTH, gd->width,
7866                       GDI_DECORATION_SHIFTING, 1, 1,
7867                       GDI_EVENT_MASK, event_mask,
7868                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7869                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
7870                       GDI_END);
7871
7872     if (gi == NULL)
7873       Fail("cannot create gadget");
7874
7875     level_editor_gadget[id] = gi;
7876     right_gadget_border[id] =
7877       getRightGadgetBorder(gi, textbutton_info[i].text_right);
7878   }
7879 }
7880
7881 static void CreateGraphicbuttonGadgets(void)
7882 {
7883   struct GadgetInfo *gi;
7884   int i;
7885
7886   // create buttons for scrolling of drawing area and element list
7887   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
7888   {
7889     int id = graphicbutton_info[i].gadget_id;
7890     int type_id = graphicbutton_info[i].gadget_type_id;
7891     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
7892     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
7893     int graphic = graphicbutton_info[i].graphic;
7894     struct GraphicInfo *gd = &graphic_info[graphic];
7895     int gd_x1 = gd->src_x;
7896     int gd_y1 = gd->src_y;
7897     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7898     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7899     unsigned int event_mask = GD_EVENT_RELEASED;
7900
7901     if (type_id != i)
7902       Fail("'graphicbutton_info' structure corrupted at index %d -- please fix", i);
7903
7904     // determine horizontal position to the right of specified gadget
7905     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7906       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
7907            ED_GADGET_TEXT_DISTANCE);
7908
7909     // determine horizontal offset for leading text
7910     if (graphicbutton_info[i].text_left != NULL)
7911       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
7912
7913     gi = CreateGadget(GDI_CUSTOM_ID, id,
7914                       GDI_CUSTOM_TYPE_ID, type_id,
7915                       GDI_IMAGE_ID, graphic,
7916                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
7917                       GDI_X, x,
7918                       GDI_Y, y,
7919                       GDI_WIDTH, gd->width,
7920                       GDI_HEIGHT, gd->height,
7921                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7922                       GDI_STATE, GD_BUTTON_UNPRESSED,
7923                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7924                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7925                       GDI_EVENT_MASK, event_mask,
7926                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7927                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
7928                       GDI_END);
7929
7930     if (gi == NULL)
7931       Fail("cannot create gadget");
7932
7933     level_editor_gadget[id] = gi;
7934     right_gadget_border[id] =
7935       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
7936   }
7937 }
7938
7939 static void CreateScrollbarGadgets(void)
7940 {
7941   int i;
7942
7943   // these values are not constant, but can change at runtime
7944   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
7945     SX + ED_SCROLL_HORIZONTAL_XPOS;
7946   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
7947     SY + ED_SCROLL_HORIZONTAL_YPOS;
7948   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
7949     ED_SCROLL_HORIZONTAL_XSIZE;
7950   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
7951     ED_SCROLL_HORIZONTAL_YSIZE;
7952   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
7953   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
7954   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
7955   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
7956
7957   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
7958     SX + ED_SCROLL_VERTICAL_XPOS;
7959   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
7960     SY + ED_SCROLL_VERTICAL_YPOS;
7961   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
7962     ED_SCROLL_VERTICAL_XSIZE;
7963   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
7964     ED_SCROLL_VERTICAL_YSIZE;
7965   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
7966   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
7967   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
7968   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
7969
7970   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
7971     PX + ED_SCROLL2_VERTICAL_XPOS;
7972   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
7973     PY + ED_SCROLL2_VERTICAL_YPOS;
7974   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
7975     ED_SCROLL2_VERTICAL_XSIZE;
7976   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
7977     ED_SCROLL2_VERTICAL_YSIZE;
7978   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
7979   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
7980   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
7981   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
7982
7983   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
7984   {
7985     int id = scrollbar_info[i].gadget_id;
7986     int type_id = scrollbar_info[i].gadget_type_id;
7987     int graphic = scrollbar_info[i].graphic;
7988     struct GraphicInfo *gd = &graphic_info[graphic];
7989     int gd_x1 = gd->src_x;
7990     int gd_y1 = gd->src_y;
7991     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7992     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7993     struct GadgetInfo *gi;
7994     int items_max, items_visible, item_position;
7995     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
7996
7997     if (type_id != i)
7998       Fail("'scrollbar_info' structure corrupted at index %d -- please fix", i);
7999
8000     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
8001     {
8002       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
8003       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
8004       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
8005     }
8006     else        // drawing area scrollbars
8007     {
8008       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
8009       {
8010         items_max = MAX(lev_fieldx + 2, ed_fieldx);
8011         items_visible = ed_fieldx;
8012         item_position = 0;
8013       }
8014       else
8015       {
8016         items_max = MAX(lev_fieldy + 2, ed_fieldy);
8017         items_visible = ed_fieldy;
8018         item_position = 0;
8019       }
8020     }
8021
8022     gi = CreateGadget(GDI_CUSTOM_ID, id,
8023                       GDI_CUSTOM_TYPE_ID, type_id,
8024                       GDI_IMAGE_ID, graphic,
8025                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
8026                       GDI_X, scrollbar_pos[i].x,
8027                       GDI_Y, scrollbar_pos[i].y,
8028                       GDI_WIDTH, scrollbar_pos[i].width,
8029                       GDI_HEIGHT, scrollbar_pos[i].height,
8030                       GDI_TYPE, scrollbar_info[i].type,
8031                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
8032                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8033                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
8034                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
8035                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
8036                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
8037                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
8038                       GDI_STATE, GD_BUTTON_UNPRESSED,
8039                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8040                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8041                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8042                       GDI_EVENT_MASK, event_mask,
8043                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8044                       GDI_CALLBACK_ACTION, HandleControlButtons,
8045                       GDI_END);
8046
8047     if (gi == NULL)
8048       Fail("cannot create gadget");
8049
8050     level_editor_gadget[id] = gi;
8051   }
8052 }
8053
8054 static void CreateCheckbuttonGadgets(void)
8055 {
8056   struct GadgetInfo *gi;
8057   int i;
8058
8059   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
8060   {
8061     int id = checkbutton_info[i].gadget_id;
8062     int type_id = checkbutton_info[i].gadget_type_id;
8063     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
8064                    IMG_EDITOR_CHECKBOX);
8065     struct GraphicInfo *gd = &graphic_info[graphic];
8066     int gd_x1 = gd->src_x;
8067     int gd_y1 = gd->src_y;
8068     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8069     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8070     int gd_x1a = gd->src_x + gd->active_xoffset;
8071     int gd_y1a = gd->src_y + gd->active_yoffset;
8072     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8073     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8074     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
8075     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
8076     unsigned int event_mask = GD_EVENT_PRESSED;
8077
8078     if (type_id != i)
8079       Fail("'checkbutton_info' structure corrupted at index %d -- please fix", i);
8080
8081     // determine horizontal position to the right of specified gadget
8082     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8083       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
8084            ED_GADGET_TEXT_DISTANCE);
8085
8086     // determine horizontal offset for leading text
8087     if (checkbutton_info[i].text_left != NULL)
8088       x += getTextWidthForGadget(checkbutton_info[i].text_left);
8089
8090     gi = CreateGadget(GDI_CUSTOM_ID, id,
8091                       GDI_CUSTOM_TYPE_ID, type_id,
8092                       GDI_IMAGE_ID, graphic,
8093                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
8094                       GDI_X, x,
8095                       GDI_Y, y,
8096                       GDI_WIDTH, gd->width,
8097                       GDI_HEIGHT, gd->height,
8098                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
8099                       GDI_CHECKED, *checkbutton_info[i].value,
8100                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8101                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8102                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8103                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8104                       GDI_EVENT_MASK, event_mask,
8105                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8106                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
8107                       GDI_END);
8108
8109     if (gi == NULL)
8110       Fail("cannot create gadget");
8111
8112     level_editor_gadget[id] = gi;
8113     right_gadget_border[id] =
8114       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
8115   }
8116 }
8117
8118 static void CreateRadiobuttonGadgets(void)
8119 {
8120   int graphic = IMG_EDITOR_RADIOBUTTON;
8121   struct GraphicInfo *gd = &graphic_info[graphic];
8122   int gd_x1 = gd->src_x;
8123   int gd_y1 = gd->src_y;
8124   int gd_x2 = gd->src_x + gd->pressed_xoffset;
8125   int gd_y2 = gd->src_y + gd->pressed_yoffset;
8126   int gd_x1a = gd->src_x + gd->active_xoffset;
8127   int gd_y1a = gd->src_y + gd->active_yoffset;
8128   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8129   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8130   struct GadgetInfo *gi;
8131   int i;
8132
8133   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
8134   {
8135     int id = radiobutton_info[i].gadget_id;
8136     int type_id = radiobutton_info[i].gadget_type_id;
8137     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
8138     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
8139     unsigned int event_mask = GD_EVENT_PRESSED;
8140
8141     if (type_id != i)
8142       Fail("'radiobutton_info' structure corrupted at index %d -- please fix", i);
8143
8144     int checked =
8145       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
8146
8147     // determine horizontal position to the right of specified gadget
8148     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
8149       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
8150            ED_GADGET_TEXT_DISTANCE);
8151
8152     // determine horizontal offset for leading text
8153     if (radiobutton_info[i].text_left != NULL)
8154       x += getTextWidthForGadget(radiobutton_info[i].text_left);
8155
8156     gi = CreateGadget(GDI_CUSTOM_ID, id,
8157                       GDI_CUSTOM_TYPE_ID, type_id,
8158                       GDI_IMAGE_ID, graphic,
8159                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
8160                       GDI_X, x,
8161                       GDI_Y, y,
8162                       GDI_WIDTH, gd->width,
8163                       GDI_HEIGHT, gd->height,
8164                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
8165                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
8166                       GDI_CHECKED, checked,
8167                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8168                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8169                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8170                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8171                       GDI_EVENT_MASK, event_mask,
8172                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8173                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
8174                       GDI_END);
8175
8176     if (gi == NULL)
8177       Fail("cannot create gadget");
8178
8179     level_editor_gadget[id] = gi;
8180     right_gadget_border[id] =
8181       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
8182   }
8183 }
8184
8185 void CreateLevelEditorGadgets(void)
8186 {
8187   // force EDITOR font inside level editor
8188   SetFontStatus(GAME_MODE_EDITOR);
8189
8190   // these values are not constant, but can change at runtime
8191   ed_fieldx = MAX_ED_FIELDX - 1;
8192   ed_fieldy = MAX_ED_FIELDY - 1;
8193
8194   num_editor_gadgets = NUM_EDITOR_GADGETS;
8195
8196   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
8197
8198   level_editor_gadget =
8199     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
8200   right_gadget_border =
8201     checked_calloc(num_editor_gadgets * sizeof(int));
8202
8203   // set number of empty (padding) element buttons to maximum number of buttons
8204   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
8205
8206   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
8207   editor_el_empty_ptr = editor_el_empty;
8208
8209   use_permanent_palette = !editor.palette.show_as_separate_screen;
8210
8211   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
8212
8213   ReinitializeElementList();
8214
8215   CreateControlButtons();
8216   CreateScrollbarGadgets();
8217
8218   // order of function calls is important because of cross-references
8219   CreateCheckbuttonGadgets();
8220   CreateCounterButtons();
8221   CreateRadiobuttonGadgets();
8222   CreateTextInputGadgets();
8223   CreateTextAreaGadgets();
8224   CreateSelectboxGadgets();
8225   CreateGraphicbuttonGadgets();
8226   CreateTextbuttonGadgets();
8227   CreateDrawingAreas();
8228
8229   ResetFontStatus();
8230 }
8231
8232 void FreeLevelEditorGadgets(void)
8233 {
8234   int i;
8235
8236   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
8237
8238   for (i = 0; i < num_editor_gadgets; i++)
8239   {
8240     FreeGadget(level_editor_gadget[i]);
8241
8242     level_editor_gadget[i] = NULL;
8243   }
8244
8245   checked_free(level_editor_gadget);
8246   checked_free(right_gadget_border);
8247
8248   checked_free(editor_el_empty);
8249 }
8250
8251 static void MapCounterButtons(int id)
8252 {
8253   int font_nr = FONT_TEXT_1;
8254   int font_height = getFontHeight(font_nr);
8255   int gadget_id_down = counterbutton_info[id].gadget_id_down;
8256   int gadget_id_text = counterbutton_info[id].gadget_id_text;
8257   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
8258   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
8259   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
8260   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
8261   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
8262   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8263   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8264   int yoffset = (gi_down->height - font_height) / 2;
8265   int x_left = gi_down->x - xoffset_left;
8266   int x_right;  // set after gadget position was modified
8267   int y_above = gi_down->y - yoffset_above;
8268   int x = gi_down->x;
8269   int y;        // set after gadget position was modified
8270
8271   // counter limits must be changed first to prevent value truncation
8272   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
8273                             counterbutton_info[id].max_value);
8274
8275   // right text position might have changed after setting position above
8276   x_right = gi_up->x + gi_up->width + xoffset_right;
8277
8278   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
8279
8280   // set position for counter gadgets with dynamically determined position
8281   if (id != ED_COUNTER_ID_SELECT_LEVEL)
8282   {
8283     ModifyGadget(gi_down, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8284     ModifyGadget(gi_text, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8285     ModifyGadget(gi_up,   GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8286   }
8287
8288   // vertical position might have changed after setting position above
8289   y = gi_up->y + yoffset;
8290
8291   if (counterbutton_info[id].text_above)
8292     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
8293
8294   if (counterbutton_info[id].text_left)
8295     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
8296
8297   if (counterbutton_info[id].text_right)
8298     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
8299
8300   MapGadget(gi_down);
8301   MapGadget(gi_text);
8302   MapGadget(gi_up);
8303 }
8304
8305 static void MapControlButtons(void)
8306 {
8307   int counter_id;
8308   int i;
8309
8310   // map toolbox buttons (excluding special CE toolbox buttons)
8311   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
8312     MapGadget(level_editor_gadget[i]);
8313
8314   // map toolbox buttons (element properties buttons)
8315   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
8316     MapGadget(level_editor_gadget[i]);
8317
8318   if (use_permanent_palette)
8319   {
8320     // map buttons to select elements
8321     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
8322       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
8323     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
8324     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
8325     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
8326   }
8327
8328   // map buttons to select level
8329   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
8330   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
8331   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
8332   MapCounterButtons(counter_id);
8333 }
8334
8335 static void MapDrawingArea(int id)
8336 {
8337   int font_nr = FONT_TEXT_1;
8338   int font_height = getFontHeight(font_nr);
8339   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
8340   int area_xsize = gi->drawing.area_xsize;
8341   int area_ysize = gi->drawing.area_ysize;
8342   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8343   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
8344   int x_left  = gi->x - xoffset_left - ED_DRAWINGAREA_BORDER_SIZE;
8345   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
8346   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
8347   int x_below = gi->x + (gi->width - xoffset_below) / 2;
8348   int y_side  = gi->y + (gi->height - font_height) / 2;
8349   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
8350   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
8351
8352   if (drawingarea_info[id].text_left)
8353     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
8354
8355   if (drawingarea_info[id].text_right)
8356     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
8357
8358   if (drawingarea_info[id].text_above)
8359     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
8360
8361   if (drawingarea_info[id].text_below)
8362     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
8363
8364   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
8365   {
8366     DrawElementBorder(gi->x, gi->y,
8367                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
8368                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
8369
8370     DrawDrawingArea(id);
8371   }
8372
8373   MapGadget(gi);
8374 }
8375
8376 static void MapTextInputGadget(int id)
8377 {
8378   int font_nr = FONT_TEXT_1;
8379   int font_height = getFontHeight(font_nr);
8380   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
8381   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8382   int x_above = ED_SETTINGS_X(textinput_info[id].x);
8383   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
8384
8385   if (textinput_info[id].text_above)
8386     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
8387
8388   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
8389
8390   MapGadget(gi);
8391 }
8392
8393 static void MapTextAreaGadget(int id)
8394 {
8395   int font_nr = FONT_TEXT_1;
8396   int font_height = getFontHeight(font_nr);
8397   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
8398   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8399   int x_above = ED_SETTINGS_X(textarea_info[id].x);
8400   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
8401   char *text_above = textarea_info[id].text_above;
8402
8403   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
8404     text_above = textarea_info[id].text_above_cropped;
8405
8406   if (text_above)
8407     DrawTextS(x_above, y_above, font_nr, text_above);
8408
8409   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
8410
8411   MapGadget(gi);
8412 }
8413
8414 static void MapSelectboxGadget(int id)
8415 {
8416   int font_nr = FONT_TEXT_1;
8417   int font_height = getFontHeight(font_nr);
8418   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
8419   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
8420   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8421   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8422   int yoffset = (gi->height - font_height) / 2;
8423   int x_left = gi->x - xoffset_left;
8424   int x_right = gi->x + gi->width + xoffset_right;
8425   int y_above = gi->y - yoffset_above;
8426   int x = gi->x;
8427   int y = gi->y + yoffset;
8428
8429   if (selectbox_info[id].text_above)
8430     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
8431
8432   if (selectbox_info[id].text_left)
8433     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
8434
8435   if (selectbox_info[id].text_right)
8436     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
8437
8438   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
8439
8440   MapGadget(gi);
8441 }
8442
8443 static void MapTextbuttonGadget(int id)
8444 {
8445   int font_nr = FONT_TEXT_1;
8446   int font_height = getFontHeight(font_nr);
8447   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
8448   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
8449   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8450   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8451   int yoffset = (gi->height - font_height) / 2;
8452   int x_left = gi->x - xoffset_left;
8453   int x_right = gi->x + gi->width + xoffset_right;
8454   int y_above = gi->y - yoffset_above;
8455   int x = gi->x;
8456   int y = gi->y + yoffset;
8457
8458   // only show button to delete change pages when more than minimum pages
8459   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
8460       custom_element.num_change_pages == MIN_CHANGE_PAGES)
8461     return;
8462
8463   if (textbutton_info[id].text_above)
8464     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
8465
8466   if (textbutton_info[id].text_left)
8467     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
8468
8469   if (textbutton_info[id].text_right)
8470     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
8471
8472   MapGadget(gi);
8473 }
8474
8475 static void MapGraphicbuttonGadget(int id)
8476 {
8477   int font_nr = FONT_TEXT_1;
8478   int font_height = getFontHeight(font_nr);
8479   struct GadgetInfo *gi = level_editor_gadget[graphicbutton_info[id].gadget_id];
8480   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
8481   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8482   int yoffset = (gi->height - font_height) / 2;
8483   int x_left = gi->x - xoffset_left;
8484   int x_right = gi->x + gi->width + xoffset_right;
8485   int y = gi->y + yoffset;
8486
8487   if (graphicbutton_info[id].text_left)
8488     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
8489
8490   if (graphicbutton_info[id].text_right)
8491     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
8492
8493   MapGadget(gi);
8494 }
8495
8496 static void MapRadiobuttonGadget(int id)
8497 {
8498   int font_nr = FONT_TEXT_1;
8499   int font_height = getFontHeight(font_nr);
8500   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
8501   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8502   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8503   int yoffset = (gi->height - font_height) / 2;
8504   int x_left = gi->x - xoffset_left;
8505   int x_right = gi->x + gi->width + xoffset_right;
8506   int y = gi->y + yoffset;
8507   boolean checked =
8508     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
8509
8510   if (radiobutton_info[id].text_left)
8511     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
8512
8513   if (radiobutton_info[id].text_right)
8514     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
8515
8516   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
8517
8518   MapGadget(gi);
8519 }
8520
8521 static void MapCheckbuttonGadget(int id)
8522 {
8523   int font_nr = FONT_TEXT_1;
8524   int font_height = getFontHeight(font_nr);
8525   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
8526   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8527   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8528   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8529   int yoffset = (gi->height - font_height) / 2;
8530   int y_above = gi->y - yoffset_above;
8531   int x = gi->x;
8532   int x_left, x_right, y;       // set after gadget position was modified
8533
8534   // set position for gadgets with dynamically determined position
8535   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
8536     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x), GDI_END);
8537   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
8538
8539   x_left = gi->x - xoffset_left;
8540   x_right = gi->x + gi->width + xoffset_right;
8541   y = gi->y + yoffset;
8542
8543   if (checkbutton_info[id].text_above)
8544     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
8545
8546   if (checkbutton_info[id].text_left)
8547     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
8548
8549   if (checkbutton_info[id].text_right)
8550     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
8551
8552   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
8553
8554   MapGadget(gi);
8555 }
8556
8557 static void MapMainDrawingArea(void)
8558 {
8559   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
8560   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
8561   int i;
8562
8563   if (suppressBorderElement())
8564   {
8565     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
8566     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
8567   }
8568
8569   for (i = ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
8570   {
8571     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
8572           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
8573          no_horizontal_scrollbar) ||
8574         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
8575           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
8576          no_vertical_scrollbar))
8577       continue;
8578
8579     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
8580   }
8581
8582   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
8583   {
8584     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
8585         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
8586       continue;
8587
8588     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
8589   }
8590
8591   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
8592 }
8593
8594 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
8595 {
8596   int i;
8597
8598   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
8599   {
8600     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
8601         i == GADGET_ID_CUSTOM_COPY_TO ||
8602         i == GADGET_ID_CUSTOM_EXCHANGE ||
8603         i == GADGET_ID_CUSTOM_COPY ||
8604         i == GADGET_ID_CUSTOM_PASTE)
8605     {
8606       if (map)
8607         MapGadget(level_editor_gadget[i]);
8608       else
8609         UnmapGadget(level_editor_gadget[i]);
8610     }
8611   }
8612 }
8613
8614 static void MapLevelEditorToolboxCustomGadgets(void)
8615 {
8616   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
8617 }
8618
8619 static void MapLevelEditorToolboxCustomGadgetsIfNeeded(void)
8620 {
8621   if (IS_CUSTOM_ELEMENT(properties_element) ||
8622       IS_GROUP_ELEMENT(properties_element) ||
8623       IS_EMPTY_ELEMENT(properties_element))
8624     MapLevelEditorToolboxCustomGadgets();
8625 }
8626
8627 static void UnmapLevelEditorToolboxCustomGadgets(void)
8628 {
8629   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
8630 }
8631
8632 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
8633 {
8634   int i;
8635
8636   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
8637   {
8638     if (i != GADGET_ID_SINGLE_ITEMS &&
8639         i != GADGET_ID_PICK_ELEMENT)
8640     {
8641       struct GadgetInfo *gi = level_editor_gadget[i];
8642
8643       if (map)
8644       {
8645         MapGadget(gi);
8646       }
8647       else
8648       {
8649         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
8650         struct GraphicInfo *gd = &graphic_info[graphic];
8651
8652         UnmapGadget(gi);
8653
8654         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
8655                    gi->width, gi->height, gi->x, gi->y);
8656
8657         redraw_mask |= REDRAW_DOOR_3;
8658       }
8659     }
8660   }
8661 }
8662
8663 static void MapLevelEditorToolboxDrawingGadgets(void)
8664 {
8665   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
8666 }
8667
8668 static void UnmapLevelEditorToolboxDrawingGadgets(void)
8669 {
8670   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
8671 }
8672
8673 static void UnmapDrawingArea(int id)
8674 {
8675   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
8676 }
8677
8678 static void UnmapLevelEditorFieldGadgets(void)
8679 {
8680   int i;
8681
8682   for (i = 0; i < num_editor_gadgets; i++)
8683     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
8684                           level_editor_gadget[i]->y))
8685       UnmapGadget(level_editor_gadget[i]);
8686 }
8687
8688 void UnmapLevelEditorGadgets(void)
8689 {
8690   int i;
8691
8692   for (i = 0; i < num_editor_gadgets; i++)
8693     UnmapGadget(level_editor_gadget[i]);
8694 }
8695
8696 static void ResetUndoBuffer(void)
8697 {
8698   undo_buffer_position = -1;
8699   undo_buffer_steps = -1;
8700   redo_buffer_steps = 0;
8701
8702   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
8703
8704   level.changed = FALSE;
8705 }
8706
8707 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
8708 {
8709   if (remap_toolbox_gadgets)
8710   {
8711     ModifyEditorElementList();
8712     RedrawDrawingElements();
8713   }
8714
8715   if (edit_mode == ED_MODE_LEVELCONFIG)
8716     DrawLevelConfigWindow();
8717   else if (edit_mode == ED_MODE_PROPERTIES)
8718     DrawPropertiesWindow();
8719   else if (edit_mode == ED_MODE_PALETTE)
8720     DrawPaletteWindow();
8721   else  // edit_mode == ED_MODE_DRAWING
8722     DrawDrawingWindowExt(remap_toolbox_gadgets);
8723 }
8724
8725 static void DrawEditModeWindow(void)
8726 {
8727   DrawEditModeWindowExt(TRUE);
8728 }
8729
8730 static void DrawEditModeWindow_PlayfieldOnly(void)
8731 {
8732   DrawEditModeWindowExt(FALSE);
8733 }
8734
8735 static void ChangeEditModeWindow(int new_edit_mode)
8736 {
8737   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
8738
8739   DrawEditModeWindow();
8740 }
8741
8742 static boolean LevelChanged(void)
8743 {
8744   boolean field_changed = FALSE;
8745   int x, y;
8746
8747   for (y = 0; y < lev_fieldy; y++)
8748     for (x = 0; x < lev_fieldx; x++)
8749       if (Tile[x][y] != level.field[x][y])
8750         field_changed = TRUE;
8751
8752   return (level.changed || field_changed);
8753 }
8754
8755 static boolean PrepareSavingIntoPersonalLevelSet(void)
8756 {
8757   static LevelDirTree *last_copied_leveldir = NULL;
8758   static LevelDirTree *last_written_leveldir = NULL;
8759   static int last_copied_level_nr = -1;
8760   static int last_written_level_nr = -1;
8761   LevelDirTree *leveldir_former = leveldir_current;
8762   int level_nr_former = level_nr;
8763   int new_level_nr;
8764
8765   // remember last mod/save so that for current session, we write
8766   // back to the same personal copy, asking only about overwrite.
8767   if (leveldir_current == last_copied_leveldir &&
8768       level_nr == last_copied_level_nr)
8769   {
8770     // "cd" to personal level set dir (as used when writing last copy)
8771     leveldir_current = last_written_leveldir;
8772     level_nr = last_written_level_nr;
8773
8774     return TRUE;
8775   }
8776
8777   if (!Request("This level is read-only! "
8778                "Save into personal level set?", REQ_ASK))
8779     return FALSE;
8780
8781   // "cd" to personal level set dir (for writing copy the first time)
8782   leveldir_current =
8783     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
8784
8785   // this may happen if "setup.internal.create_user_levelset" is FALSE
8786   // or if file "levelinfo.conf" is missing in personal user level set
8787   if (leveldir_current == NULL)
8788   {
8789     Request("Cannot find personal level set?!", REQ_CONFIRM);
8790
8791     leveldir_current = leveldir_former;
8792
8793     return FALSE;
8794   }
8795
8796   // find unused level number
8797   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
8798   {
8799     static char *level_filename = NULL;
8800
8801     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
8802
8803     if (!fileExists(level_filename))
8804       break;
8805   }
8806
8807   last_copied_leveldir = leveldir_former;
8808   last_copied_level_nr = level_nr_former;
8809
8810   last_written_leveldir = leveldir_current;
8811   last_written_level_nr = level_nr = new_level_nr;
8812
8813   return TRUE;
8814 }
8815
8816 static void ModifyLevelConfigForSavingIntoPersonalLevelSet(char *former_name)
8817 {
8818   static char *filename_levelinfo = NULL, *mod_name = NULL;
8819   FILE *file;
8820
8821   // annotate this copy-and-mod in personal levelinfo.conf
8822   setString(&filename_levelinfo,
8823             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
8824
8825   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
8826   {
8827     fprintf(file, "\n");
8828     fprintf(file, "# level %d was modified from:\n", level_nr);
8829     fprintf(file, "# - previous level set name:    %s\n",
8830             former_name);
8831     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
8832             level.file_info.nr, level.name);
8833     fprintf(file, "# - previous author:            %s\n",
8834             level.author);
8835     fprintf(file, "# - previous save date:         ");
8836
8837     if (level.creation_date.src == DATE_SRC_LEVELFILE)
8838     {
8839       fprintf(file, "%04d-%02d-%02d\n",
8840               level.creation_date.year,
8841               level.creation_date.month,
8842               level.creation_date.day);
8843     }
8844     else
8845     {
8846       fprintf(file, "not recorded\n");
8847     }
8848
8849     fclose(file);
8850   }
8851
8852   if (level_nr > leveldir_current->last_level)
8853     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
8854
8855   // else: allow the save even if annotation failed
8856
8857   // now... spray graffiti on the old level vital statistics
8858   // user can change these; just trying to set a good baseline
8859
8860   // don't truncate names for fear of making offensive or silly:
8861   // long-named original author only recorded in levelinfo.conf.
8862   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
8863   if (!strEqual(level.author, leveldir_current->author))
8864   {
8865     setString(&mod_name, getStringCat3(leveldir_current->author,
8866                                        " after ", level.author));
8867
8868     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8869       setString(&mod_name,
8870                 getStringCat2(leveldir_current->author, " (ed.)"));
8871
8872     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8873       setString(&mod_name, leveldir_current->author);
8874
8875     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
8876
8877     // less worried about truncation here
8878     setString(&mod_name, getStringCat2("Mod: ", level.name));
8879     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
8880   }
8881 }
8882
8883 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
8884                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
8885 {
8886   int x, y;
8887
8888   for (x = 0; x < lev_fieldx; x++)
8889     for (y = 0; y < lev_fieldy; y++)
8890       dst[x][y] = src[x][y];
8891 }
8892
8893 static int setSelectboxValue(int selectbox_id, int new_value)
8894 {
8895   int new_index_value = 0;
8896   int i;
8897
8898   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
8899     if (selectbox_info[selectbox_id].options[i].value == new_value)
8900       new_index_value = i;
8901
8902   *selectbox_info[selectbox_id].value =
8903     selectbox_info[selectbox_id].options[new_index_value].value;
8904
8905   return new_index_value;
8906 }
8907
8908 static void setSelectboxSpecialActionVariablesIfNeeded(void)
8909 {
8910   int i;
8911
8912   // change action mode and arg variables according to action type variable
8913   for (i = 0; action_arg_options[i].value != -1; i++)
8914   {
8915     if (action_arg_options[i].value == custom_element_change.action_type)
8916     {
8917       int mode = action_arg_options[i].mode;
8918
8919       // only change if corresponding selectbox has changed
8920       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
8921           action_arg_modes[mode])
8922         custom_element_change.action_mode = -1;
8923
8924       // only change if corresponding selectbox has changed
8925       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
8926           action_arg_options[i].options)
8927         custom_element_change.action_arg = -1;
8928
8929       break;
8930     }
8931   }
8932 }
8933
8934 static void setSelectboxSpecialActionOptions(void)
8935 {
8936   int i;
8937
8938   // change action mode and arg selectbox according to action type selectbox
8939   for (i = 0; action_arg_options[i].value != -1; i++)
8940   {
8941     if (action_arg_options[i].value == custom_element_change.action_type)
8942     {
8943       int mode = action_arg_options[i].mode;
8944
8945       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
8946                                    action_arg_modes[mode]);
8947       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
8948                                  custom_element_change.action_mode);
8949
8950       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
8951                                    action_arg_options[i].options);
8952       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
8953                                  custom_element_change.action_arg);
8954       break;
8955     }
8956   }
8957 }
8958
8959 static void copy_custom_element_settings(int element_from, int element_to)
8960 {
8961   struct ElementInfo *ei_from = &element_info[element_from];
8962   struct ElementInfo *ei_to = &element_info[element_to];
8963
8964   copyElementInfo(ei_from, ei_to);
8965 }
8966
8967 static void replace_custom_element_in_settings(int element_from,
8968                                                int element_to)
8969 {
8970   int i, j, x, y;
8971
8972   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8973   {
8974     struct ElementInfo *ei = &element_info[i];
8975
8976     for (y = 0; y < 3; y++)
8977       for (x = 0; x < 3; x++)
8978         if (ei->content.e[x][y] == element_from)
8979           ei->content.e[x][y] = element_to;
8980
8981     for (j = 0; j < ei->num_change_pages; j++)
8982     {
8983       struct ElementChangeInfo *change = &ei->change_page[j];
8984
8985       if (change->target_element == element_from)
8986         change->target_element = element_to;
8987
8988       if (change->initial_trigger_element == element_from)
8989         change->initial_trigger_element = element_to;
8990
8991       if (change->action_element == element_from)
8992         change->action_element = element_to;
8993
8994       for (y = 0; y < 3; y++)
8995         for (x = 0; x < 3; x++)
8996           if (change->target_content.e[x][y] == element_from)
8997             change->target_content.e[x][y] = element_to;
8998     }
8999
9000     if (ei->group != NULL)                              // group or internal
9001       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
9002         if (ei->group->element[j] == element_from)
9003           ei->group->element[j] = element_to;
9004   }
9005 }
9006
9007 static void replace_custom_element_in_playfield(int element_from,
9008                                                 int element_to)
9009 {
9010   int x, y;
9011
9012   for (x = 0; x < lev_fieldx; x++)
9013     for (y = 0; y < lev_fieldy; y++)
9014       if (Tile[x][y] == element_from)
9015         Tile[x][y] = element_to;
9016 }
9017
9018 static boolean CopyCustomElement(int element_old, int element_new,
9019                                  int copy_mode)
9020 {
9021   int copy_mode_orig = copy_mode;
9022
9023   if (copy_mode == GADGET_ID_CUSTOM_COPY)
9024   {
9025     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
9026                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9027     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9028   }
9029   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
9030   {
9031     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
9032                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9033     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9034
9035     level.changed = TRUE;
9036   }
9037   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
9038   {
9039     Request("Please choose custom element!", REQ_CONFIRM);
9040
9041     return FALSE;
9042   }
9043   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
9044   {
9045     Request("Please choose group element!", REQ_CONFIRM);
9046
9047     return FALSE;
9048   }
9049   else if (IS_EMPTY_ELEMENT(element_old) && !IS_EMPTY_ELEMENT(element_new))
9050   {
9051     Request("Please choose empty element!", REQ_CONFIRM);
9052
9053     return FALSE;
9054   }
9055   else
9056   {
9057     level.changed = TRUE;
9058   }
9059
9060   // when modifying custom/group element, ask for copying level template
9061   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
9062   {
9063     if (!AskToCopyAndModifyLevelTemplate())
9064       return FALSE;
9065   }
9066
9067   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
9068   {
9069     copy_custom_element_settings(element_new, element_old);
9070   }
9071   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
9072   {
9073     copy_custom_element_settings(element_old, element_new);
9074   }
9075   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
9076   {
9077     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
9078     copy_custom_element_settings(element_new, element_old);
9079     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
9080
9081     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
9082     replace_custom_element_in_settings(element_new, element_old);
9083     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
9084
9085     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
9086     replace_custom_element_in_playfield(element_new, element_old);
9087     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
9088   }
9089
9090   UpdateCustomElementGraphicGadgets();
9091   DrawPropertiesWindow();
9092
9093   return TRUE;
9094 }
9095
9096 static void CopyCustomElementPropertiesToEditor(int element)
9097 {
9098   int i;
9099   int current_change_page = element_info[element].current_change_page;
9100
9101   // dynamically (re)build selectbox for selecting change page
9102   for (i = 0; i < element_info[element].num_change_pages; i++)
9103   {
9104     sprintf(options_change_page_strings[i], "%d", i + 1);
9105
9106     options_change_page[i].value = i;
9107     options_change_page[i].text = options_change_page_strings[i];
9108   }
9109
9110   options_change_page[i].value = -1;
9111   options_change_page[i].text = NULL;
9112
9113   // needed here to initialize combined element properties
9114   InitElementPropertiesEngine(level.game_version);
9115
9116   element_info[element].change =
9117     &element_info[element].change_page[current_change_page];
9118
9119   custom_element = element_info[element];
9120   custom_element_change = *element_info[element].change;
9121
9122   // needed to initially set selectbox options for special action options
9123   setSelectboxSpecialActionOptions();
9124
9125   // needed to initially set selectbox value variables to reliable defaults
9126   for (i = 0; i < ED_NUM_SELECTBOX; i++)
9127     setSelectboxValue(i, *selectbox_info[i].value);
9128
9129   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9130     custom_element_properties[i] = HAS_PROPERTY(element, i);
9131
9132   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9133     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
9134
9135   // ---------- element settings: configure (custom elements) -----------------
9136
9137   // set accessible layer selectbox help value
9138   custom_element.access_type =
9139     (IS_WALKABLE(element) ? EP_WALKABLE :
9140      IS_PASSABLE(element) ? EP_PASSABLE :
9141      custom_element.access_type);
9142   custom_element.access_layer =
9143     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
9144      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
9145      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
9146      custom_element.access_layer);
9147   custom_element.access_protected =
9148     (IS_PROTECTED(element) ? 1 : 0);
9149   custom_element_properties[EP_ACCESSIBLE] =
9150     (IS_ACCESSIBLE_OVER(element) ||
9151      IS_ACCESSIBLE_INSIDE(element) ||
9152      IS_ACCESSIBLE_UNDER(element));
9153
9154   // set walk-to-object action selectbox help value
9155   custom_element.walk_to_action =
9156     (IS_DIGGABLE(element) ? EP_DIGGABLE :
9157      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
9158      IS_DROPPABLE(element) ? EP_DROPPABLE :
9159      IS_THROWABLE(element) ? EP_THROWABLE :
9160      IS_PUSHABLE(element) ? EP_PUSHABLE :
9161      custom_element.walk_to_action);
9162   custom_element_properties[EP_WALK_TO_OBJECT] =
9163     (IS_DIGGABLE(element) ||
9164      IS_COLLECTIBLE_ONLY(element) ||
9165      IS_DROPPABLE(element) ||
9166      IS_THROWABLE(element) ||
9167      IS_PUSHABLE(element));
9168
9169   // set smash targets selectbox help value
9170   custom_element.smash_targets =
9171     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
9172      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
9173      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
9174      custom_element.smash_targets);
9175   custom_element_properties[EP_CAN_SMASH] =
9176     (CAN_SMASH_EVERYTHING(element) ||
9177      CAN_SMASH_ENEMIES(element) ||
9178      CAN_SMASH_PLAYER(element));
9179
9180   // set deadliness selectbox help value
9181   custom_element.deadliness =
9182     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
9183      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
9184      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
9185      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
9186      custom_element.deadliness);
9187   custom_element_properties[EP_DEADLY] =
9188     (DONT_TOUCH(element) ||
9189      DONT_GET_HIT_BY(element) ||
9190      DONT_COLLIDE_WITH(element) ||
9191      DONT_RUN_INTO(element));
9192
9193   // ---------- element settings: advanced (custom elements) ------------------
9194
9195   // set "change by direct action" selectbox help value
9196   custom_element_change.direct_action =
9197     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
9198      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
9199      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
9200      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
9201      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
9202      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
9203      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
9204      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
9205      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
9206      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
9207      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
9208      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
9209      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
9210      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
9211      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
9212      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
9213      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
9214      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
9215      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
9216      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
9217      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
9218      custom_element_change.direct_action);
9219
9220   // set "change by other element action" selectbox help value
9221   custom_element_change.other_action =
9222     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
9223      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
9224      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
9225      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
9226      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
9227      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
9228      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
9229      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
9230      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
9231      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
9232      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
9233      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
9234      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
9235      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
9236      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
9237      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
9238      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
9239      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
9240      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
9241      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
9242      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
9243      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
9244      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
9245      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
9246      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
9247      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
9248      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
9249      custom_element_change.other_action);
9250 }
9251
9252 static void CopyGroupElementPropertiesToEditor(int element)
9253 {
9254   group_element_info = *element_info[element].group;
9255   custom_element = element_info[element];       // needed for description
9256 }
9257
9258 static void CopyEmptyElementPropertiesToEditor(int element)
9259 {
9260   custom_element = element_info[element];
9261 }
9262
9263 static void CopyClassicElementPropertiesToEditor(int element)
9264 {
9265   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9266     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
9267       getMoveIntoAcidProperty(&level, element);
9268
9269   if (MAYBE_DONT_COLLIDE_WITH(element))
9270     custom_element_properties[EP_DONT_COLLIDE_WITH] =
9271       getDontCollideWithProperty(&level, element);
9272 }
9273
9274 static void CopyElementPropertiesToEditor(int element)
9275 {
9276   if (IS_CUSTOM_ELEMENT(element))
9277     CopyCustomElementPropertiesToEditor(element);
9278   else if (IS_GROUP_ELEMENT(element))
9279     CopyGroupElementPropertiesToEditor(element);
9280   else if (IS_EMPTY_ELEMENT(element))
9281     CopyEmptyElementPropertiesToEditor(element);
9282   else
9283     CopyClassicElementPropertiesToEditor(element);
9284 }
9285
9286 static boolean AskToCopyAndModifyLevelTemplate(void)
9287 {
9288   if (Request("Copy and modify settings from level template?", REQ_ASK))
9289   {
9290     level.use_custom_template = FALSE;
9291
9292     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
9293                  GDI_CHECKED, FALSE, GDI_END);
9294     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
9295                  GDI_CHECKED, FALSE, GDI_END);
9296
9297     return TRUE;
9298   }
9299   else
9300   {
9301     LoadLevelTemplate(-1);      // this resets all element modifications ...
9302
9303     DrawEditModeWindow();       // ... and copies them to 'custom_element'
9304
9305     return FALSE;
9306   }
9307 }
9308
9309 static void CopyCustomElementPropertiesToGame(int element)
9310 {
9311   int i;
9312   int access_type_and_layer;
9313
9314   // mark that this custom element has been modified
9315   custom_element.modified_settings = TRUE;
9316   level.changed = TRUE;
9317
9318   if (level.use_custom_template)
9319     AskToCopyAndModifyLevelTemplate();
9320
9321   element_info[element] = custom_element;
9322   *element_info[element].change = custom_element_change;
9323
9324   // ---------- element settings: configure (custom elements) -----------------
9325
9326   // set accessible property from checkbox and selectbox
9327   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
9328   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
9329   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
9330   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
9331   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
9332   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
9333   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
9334                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
9335                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
9336   custom_element_properties[access_type_and_layer] =
9337     custom_element_properties[EP_ACCESSIBLE];
9338   custom_element_properties[EP_PROTECTED] =
9339     (custom_element.access_protected != 0 &&
9340      custom_element_properties[EP_ACCESSIBLE]);
9341
9342   // set walk-to-object property from checkbox and selectbox
9343   custom_element_properties[EP_DIGGABLE] = FALSE;
9344   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
9345   custom_element_properties[EP_DROPPABLE] = FALSE;
9346   custom_element_properties[EP_THROWABLE] = FALSE;
9347   custom_element_properties[EP_PUSHABLE] = FALSE;
9348   custom_element_properties[custom_element.walk_to_action] =
9349     custom_element_properties[EP_WALK_TO_OBJECT];
9350
9351   // set smash property from checkbox and selectbox
9352   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
9353   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
9354   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
9355   custom_element_properties[custom_element.smash_targets] =
9356     custom_element_properties[EP_CAN_SMASH];
9357
9358   // set deadliness property from checkbox and selectbox
9359   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
9360   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
9361   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
9362   custom_element_properties[EP_DONT_TOUCH] = FALSE;
9363   custom_element_properties[custom_element.deadliness] =
9364     custom_element_properties[EP_DEADLY];
9365
9366   // ---------- element settings: advanced (custom elements) ------------------
9367
9368   // set player change event from checkbox and selectbox
9369   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
9370   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
9371   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
9372   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
9373   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
9374   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
9375   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
9376   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
9377   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
9378   custom_element_change_events[CE_SWITCHED] = FALSE;
9379   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
9380   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
9381   custom_element_change_events[CE_BLOCKED] = FALSE;
9382   custom_element_change_events[CE_IMPACT] = FALSE;
9383   custom_element_change_events[CE_SMASHED] = FALSE;
9384   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
9385   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
9386   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
9387   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
9388   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
9389   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
9390   custom_element_change_events[custom_element_change.direct_action] =
9391     custom_element_change_events[CE_BY_DIRECT_ACTION];
9392
9393   // set other element action change event from checkbox and selectbox
9394   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
9395   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
9396   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
9397   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
9398   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
9399   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
9400   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
9401   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
9402   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
9403   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
9404   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
9405   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
9406   custom_element_change_events[CE_TOUCHING_X] = FALSE;
9407   custom_element_change_events[CE_HITTING_X] = FALSE;
9408   custom_element_change_events[CE_DIGGING_X] = FALSE;
9409   custom_element_change_events[CE_HIT_BY_X] = FALSE;
9410   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
9411   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
9412   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
9413   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
9414   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
9415   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
9416   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
9417   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
9418   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
9419   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
9420   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
9421   custom_element_change_events[custom_element_change.other_action] =
9422     custom_element_change_events[CE_BY_OTHER_ACTION];
9423
9424   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9425     SET_PROPERTY(element, i, custom_element_properties[i]);
9426
9427   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9428     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
9429
9430   // copy change events also to special level editor variable
9431   custom_element = element_info[element];
9432   custom_element_change = *element_info[element].change;
9433
9434   // needed here to restore runtime value "element_info[element].gfx_element"
9435   InitElementPropertiesGfxElement();
9436 }
9437
9438 static void CopyGroupElementPropertiesToGame(int element)
9439 {
9440   // mark that this group element has been modified
9441   custom_element.modified_settings = TRUE;
9442   level.changed = TRUE;
9443
9444   if (level.use_custom_template)
9445     AskToCopyAndModifyLevelTemplate();
9446
9447   element_info[element] = custom_element;
9448   *element_info[element].group = group_element_info;
9449
9450   // needed here to restore runtime value "element_info[element].gfx_element"
9451   InitElementPropertiesGfxElement();
9452 }
9453
9454 static void CopyEmptyElementPropertiesToGame(int element)
9455 {
9456   // mark that this empty element has been modified
9457   custom_element.modified_settings = TRUE;
9458   level.changed = TRUE;
9459
9460   if (level.use_custom_template)
9461     AskToCopyAndModifyLevelTemplate();
9462
9463   element_info[element] = custom_element;
9464
9465   // needed here to restore runtime value "element_info[element].gfx_element"
9466   InitElementPropertiesGfxElement();
9467 }
9468
9469 static void CopyClassicElementPropertiesToGame(int element)
9470 {
9471   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9472     setMoveIntoAcidProperty(&level, element,
9473                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
9474
9475   if (MAYBE_DONT_COLLIDE_WITH(element))
9476     setDontCollideWithProperty(&level, element,
9477                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
9478 }
9479
9480 static void CopyElementPropertiesToGame(int element)
9481 {
9482   if (IS_CUSTOM_ELEMENT(element))
9483     CopyCustomElementPropertiesToGame(element);
9484   else if (IS_GROUP_ELEMENT(element))
9485     CopyGroupElementPropertiesToGame(element);
9486   else if (IS_EMPTY_ELEMENT(element))
9487     CopyEmptyElementPropertiesToGame(element);
9488   else
9489     CopyClassicElementPropertiesToGame(element);
9490 }
9491
9492 #if DEBUG
9493 static void CheckElementDescriptions(void)
9494 {
9495   int i;
9496
9497   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9498     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
9499       Warn("no element description file for element '%s'", EL_NAME(i));
9500 }
9501 #endif
9502
9503 static int getMaxEdFieldX(boolean has_scrollbar)
9504 {
9505   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
9506   int sxsize = SXSIZE - scrollbar_width;
9507   int max_ed_fieldx = sxsize / ed_tilesize;
9508
9509   return max_ed_fieldx;
9510 }
9511
9512 static int getMaxEdFieldY(boolean has_scrollbar)
9513 {
9514   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
9515                          INFOTEXT_YSIZE_FULL : 0);
9516   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
9517   int sysize = SYSIZE - scrollbar_height - infotext_height;
9518   int max_ed_fieldy = sysize / ed_tilesize;
9519
9520   return max_ed_fieldy;
9521 }
9522
9523 static void InitZoomLevelSettings(int zoom_tilesize)
9524 {
9525   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
9526
9527   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
9528   {
9529     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
9530     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
9531
9532     // make sure that tile size is always a power of 2
9533     ed_tilesize = (1 << log_2(ed_tilesize));
9534
9535     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9536     {
9537       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
9538       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
9539     }
9540   }
9541
9542   last_game_engine_type = level.game_engine_type;
9543
9544   // limit zoom tilesize by upper and lower bound
9545   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
9546
9547   // store zoom tilesize in auto setup file only if it was manually changed
9548   if (zoom_tilesize != -1)
9549     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
9550
9551   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
9552   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
9553 }
9554
9555 static void InitDrawingElements(void)
9556 {
9557   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
9558
9559   if (level.game_engine_type == game_engine_type_last)
9560     return;
9561
9562   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
9563   {
9564     new_element1 = EL_BD_WALL;
9565     new_element2 = EL_EMPTY;
9566     new_element3 = EL_BD_SAND;
9567   }
9568   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
9569   {
9570     new_element1 = EL_SP_CHIP_SINGLE;
9571     new_element2 = EL_EMPTY;
9572     new_element3 = EL_SP_BASE;
9573   }
9574   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9575   {
9576     new_element1 = EL_MM_MIRROR_START;
9577     new_element2 = EL_EMPTY;
9578     new_element3 = EL_MM_WOODEN_WALL;
9579   }
9580   else
9581   {
9582     new_element1 = EL_WALL;
9583     new_element2 = EL_EMPTY;
9584     new_element3 = EL_SAND;
9585   }
9586
9587   game_engine_type_last = level.game_engine_type;
9588 }
9589
9590 static void InitLevelSetInfo(void)
9591 {
9592   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
9593            "%s", leveldir_current->name);
9594   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
9595            "%s", leveldir_current->author);
9596
9597   levelset_num_levels = leveldir_current->levels;
9598
9599   levelset_use_levelset_artwork = FALSE;
9600   levelset_copy_level_template = FALSE;
9601
9602   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
9603 }
9604
9605 static void ChangeEditorToLevelSet(char *levelset_subdir)
9606 {
9607   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
9608
9609   // the previous level set might have used custom artwork
9610   ReloadCustomArtwork(0);
9611
9612   LoadLevelSetup_SeriesInfo();
9613
9614   SaveLevelSetup_LastSeries();
9615   SaveLevelSetup_SeriesInfo();
9616
9617   TapeErase();
9618
9619   LoadLevel(level_nr);
9620   LoadScore(level_nr);
9621
9622   DrawLevelEd();
9623 }
9624
9625 static boolean useEditorDoorAnimation(void)
9626 {
9627   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
9628   boolean door_1_viewport_unchanged =
9629     (vp_door_1->x      == DX     &&
9630      vp_door_1->y      == DY     &&
9631      vp_door_1->width  == DXSIZE &&
9632      vp_door_1->height == DYSIZE);
9633   boolean door_1_contains_toolbox =
9634     (EX >= DX &&
9635      EY >= DY &&
9636      EX + EXSIZE <= DX + DXSIZE &&
9637      EY + EYSIZE <= DY + DYSIZE);
9638
9639   return (door_1_viewport_unchanged && door_1_contains_toolbox);
9640 }
9641
9642 static void DrawEditorDoorBackground(int graphic, int x, int y,
9643                                      int width, int height)
9644 {
9645   struct GraphicInfo *g = &graphic_info[graphic];
9646
9647   if (g->bitmap != NULL)
9648     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
9649                MIN(width, g->width), MIN(height, g->height), x, y);
9650   else
9651     ClearRectangle(drawto, x, y, width, height);
9652 }
9653
9654 static void DrawEditorDoorContent(void)
9655 {
9656   // needed for gadgets drawn on background (like palette scrollbar)
9657   SetDoorBackgroundImage(IMG_UNDEFINED);
9658
9659   // copy default editor door content to main double buffer
9660   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
9661
9662   // draw bigger door
9663   DrawSpecialEditorDoor();
9664
9665   // draw new control window
9666   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
9667
9668   // draw all toolbox gadgets to editor doors
9669   MapControlButtons();
9670
9671   // when returning from test game to properties page, redraw toolbox gadgets
9672   if (edit_mode == ED_MODE_PROPERTIES)
9673   {
9674     UnmapLevelEditorToolboxDrawingGadgets();
9675     UnmapLevelEditorToolboxCustomGadgets();
9676
9677     MapLevelEditorToolboxCustomGadgetsIfNeeded();
9678   }
9679
9680   // draw all palette gadgets to editor doors
9681   ModifyEditorElementList();
9682   RedrawDrawingElements();
9683
9684   // copy actual editor door content to door double buffer for OpenDoor()
9685   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
9686 }
9687
9688 void DrawLevelEd(void)
9689 {
9690   int fade_mask = REDRAW_FIELD;
9691
9692   FadeSoundsAndMusic();
9693
9694   if (CheckFadeAll())
9695     fade_mask = REDRAW_ALL;
9696
9697   FadeOut(fade_mask);
9698
9699   // needed if different viewport properties defined for editor
9700   ChangeViewportPropertiesIfNeeded();
9701
9702   ClearField();
9703
9704   InitZoomLevelSettings(-1);
9705   InitDrawingElements();
9706   InitLevelSetInfo();
9707
9708 #if DEBUG
9709   CheckElementDescriptions();
9710 #endif
9711
9712   if (level_editor_test_game)
9713   {
9714     CopyPlayfield(level.field, Tile);
9715     CopyPlayfield(TileBackup, level.field);
9716
9717     level_editor_test_game = FALSE;
9718   }
9719   else
9720   {
9721     edit_mode = ED_MODE_DRAWING;
9722     edit_mode_levelconfig = ED_MODE_LEVELCONFIG_LEVEL;
9723     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
9724
9725     ResetUndoBuffer();
9726
9727     level_xpos = -1;
9728     level_ypos = -1;
9729   }
9730
9731   // redraw_mask |= REDRAW_ALL;
9732
9733   FreeLevelEditorGadgets();
9734   CreateLevelEditorGadgets();
9735
9736   ReinitializeElementList();            // update dynamic level element list
9737   ReinitializeElementListButtons();     // custom element may look different
9738
9739   InitElementPropertiesGfxElement();
9740
9741   UnmapAllGadgets();
9742
9743   DrawEditModeWindow_PlayfieldOnly();
9744
9745   DrawMaskedBorder(fade_mask);
9746
9747   // use door animation if door 1 viewport is unchanged and contains toolbox
9748   if (useEditorDoorAnimation())
9749   {
9750     FadeIn(fade_mask);
9751
9752     DrawEditorDoorContent();
9753
9754     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
9755   }
9756   else
9757   {
9758     DrawEditorDoorContent();
9759
9760     FadeIn(fade_mask);
9761   }
9762
9763   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
9764 }
9765
9766 static void AdjustDrawingAreaGadgets(void)
9767 {
9768   int ed_xsize = lev_fieldx + 2;
9769   int ed_ysize = lev_fieldy + 2;
9770   int max_ed_fieldx = MAX_ED_FIELDX;
9771   int max_ed_fieldy = MAX_ED_FIELDY;
9772   boolean horizontal_scrollbar_needed;
9773   boolean vertical_scrollbar_needed;
9774   int x, y, width, height;
9775
9776   if (suppressBorderElement())
9777   {
9778     ed_xsize = lev_fieldx;
9779     ed_ysize = lev_fieldy;
9780   }
9781
9782   // check if we need any scrollbars
9783   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9784   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9785
9786   // check if we have a smaller editor field because of scrollbars
9787   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9788   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9789
9790   // check again if we now need more scrollbars because of less space
9791   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9792   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9793
9794   // check if editor field gets even smaller after adding new scrollbars
9795   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9796   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9797
9798   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
9799   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
9800
9801   x = SX + ed_fieldx * ed_tilesize;
9802   y = SY + ed_fieldy * ed_tilesize;
9803
9804   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
9805   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
9806
9807   // adjust drawing area gadget
9808   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
9809                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
9810                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
9811                GDI_END);
9812
9813   // adjust horizontal scrollbar gadgets
9814   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
9815                GDI_Y, y,
9816                GDI_END);
9817   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
9818                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
9819                GDI_Y, y,
9820                GDI_END);
9821   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
9822                GDI_Y, y,
9823                GDI_WIDTH, width,
9824                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
9825                GDI_END);
9826
9827   // adjust vertical scrollbar gadgets
9828   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
9829                GDI_X, x,
9830                GDI_END);
9831   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
9832                GDI_X, x,
9833                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
9834                GDI_END);
9835   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
9836                GDI_X, x,
9837                GDI_HEIGHT, height,
9838                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
9839                GDI_END);
9840 }
9841
9842 static void AdjustLevelScrollPosition(void)
9843 {
9844   if (level_xpos < -1)
9845     level_xpos = -1;
9846   if (level_xpos > lev_fieldx - ed_fieldx + 1)
9847     level_xpos = lev_fieldx - ed_fieldx + 1;
9848   if (lev_fieldx < ed_fieldx - 2)
9849     level_xpos = -1;
9850
9851   if (level_ypos < -1)
9852     level_ypos = -1;
9853   if (level_ypos > lev_fieldy - ed_fieldy + 1)
9854     level_ypos = lev_fieldy - ed_fieldy + 1;
9855   if (lev_fieldy < ed_fieldy - 2)
9856     level_ypos = -1;
9857
9858   if (suppressBorderElement())
9859   {
9860     level_xpos = 0;
9861     level_ypos = 0;
9862   }
9863 }
9864
9865 static void AdjustEditorScrollbar(int id)
9866 {
9867   struct GadgetInfo *gi = level_editor_gadget[id];
9868   int items_max, items_visible, item_position;
9869
9870   if (id == GADGET_ID_SCROLL_HORIZONTAL)
9871   {
9872     items_max = MAX(lev_fieldx + 2, ed_fieldx);
9873     items_visible = ed_fieldx;
9874     item_position = level_xpos + 1;
9875   }
9876   else
9877   {
9878     items_max = MAX(lev_fieldy + 2, ed_fieldy);
9879     items_visible = ed_fieldy;
9880     item_position = level_ypos + 1;
9881   }
9882
9883   if (item_position > items_max - items_visible)
9884     item_position = items_max - items_visible;
9885
9886   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9887                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9888 }
9889
9890 static void AdjustElementListScrollbar(void)
9891 {
9892   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
9893   int items_max, items_visible, item_position;
9894
9895   // correct position of element list scrollbar
9896   if (element_shift < 0)
9897     element_shift = 0;
9898   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
9899     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
9900
9901   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
9902   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
9903   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
9904
9905   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9906                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
9907                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9908 }
9909
9910 static void ModifyEditorCounterValue(int counter_id, int new_value)
9911 {
9912   int *counter_value = counterbutton_info[counter_id].value;
9913   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9914   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9915
9916   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
9917
9918   if (counter_value != NULL)
9919     *counter_value = gi->textinput.number_value;
9920 }
9921
9922 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
9923 {
9924   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9925   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9926
9927   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
9928
9929   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
9930       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
9931   {
9932     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
9933     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
9934
9935     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
9936     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
9937                  GDI_END);
9938   }
9939 }
9940
9941 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
9942 {
9943   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9944   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9945   int new_index_value = setSelectboxValue(selectbox_id, new_value);
9946
9947   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
9948 }
9949
9950 static void ModifyEditorSelectboxOptions(int selectbox_id,
9951                                          struct ValueTextInfo *options)
9952 {
9953   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9954   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9955
9956   selectbox_info[selectbox_id].options = options;
9957
9958   // set index to zero -- list may be shorter now (correct later, if needed)
9959   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
9960                GDI_SELECTBOX_OPTIONS, options, GDI_END);
9961 }
9962
9963 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
9964 {
9965   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
9966   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9967
9968   drawingarea_info[drawingarea_id].area_xsize = xsize;
9969   drawingarea_info[drawingarea_id].area_ysize = ysize;
9970
9971   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
9972 }
9973
9974 static void ModifyEditorElementList(void)
9975 {
9976   int i;
9977
9978   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
9979     return;
9980
9981   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
9982   {
9983     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
9984     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9985     struct GadgetDesign *gd = &gi->deco.design;
9986     int element = editor_elements[element_shift + i];
9987     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
9988
9989     UnmapGadget(gi);
9990
9991     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
9992
9993     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
9994
9995     MapGadget(gi);
9996   }
9997 }
9998
9999 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
10000 {
10001   int graphic = el2edimg(element);
10002   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
10003
10004   if (pos->x == -1 &&
10005       pos->y == -1)
10006     return;
10007
10008   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
10009 }
10010
10011 static void ModifyDrawingElementButton(int element, int id)
10012 {
10013   struct GadgetInfo *gi = level_editor_gadget[id];
10014   Bitmap *deco_bitmap;
10015   int deco_x, deco_y;
10016   int tile_size = gi->deco.width;
10017
10018   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
10019
10020   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
10021 }
10022
10023 static void PickDrawingElement(int button, int element)
10024 {
10025   struct
10026   {
10027     int *new_element;
10028     struct XYTileSize *pos;
10029     int id;
10030   } de, drawing_elements[] =
10031   {
10032     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
10033     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
10034     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
10035   };
10036
10037   if (button < 1 || button > 3)
10038     return;
10039
10040   if (IS_MM_WALL(element))
10041     element = map_mm_wall_element(element);
10042
10043   de = drawing_elements[button - 1];
10044
10045   *de.new_element = element;    // update global drawing element variable
10046
10047   DrawDrawingElementGraphic(element, de.pos);
10048   ModifyDrawingElementButton(element, de.id);
10049
10050   redraw_mask |= REDRAW_DOOR_1;
10051 }
10052
10053 static void RedrawDrawingElements(void)
10054 {
10055   PickDrawingElement(1, new_element1);
10056   PickDrawingElement(2, new_element2);
10057   PickDrawingElement(3, new_element3);
10058 }
10059
10060 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
10061 {
10062   stick_element_properties_window = FALSE;
10063
10064   SetMainBackgroundImage(IMG_UNDEFINED);
10065   ClearField();
10066
10067   UnmapLevelEditorFieldGadgets();
10068
10069   AdjustDrawingAreaGadgets();
10070   AdjustLevelScrollPosition();
10071   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
10072   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
10073
10074   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10075
10076   MapMainDrawingArea();
10077
10078   if (remap_toolbox_gadgets)
10079   {
10080     UnmapLevelEditorToolboxCustomGadgets();
10081     MapLevelEditorToolboxDrawingGadgets();
10082   }
10083 }
10084
10085 static void DrawDrawingWindow(void)
10086 {
10087   DrawDrawingWindowExt(TRUE);
10088 }
10089
10090 static int getTabulatorBarWidth(void)
10091 {
10092   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10093   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
10094
10095   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
10096 }
10097
10098 static int getTabulatorBarHeight(void)
10099 {
10100   return ED_TAB_BAR_HEIGHT;
10101 }
10102
10103 static Pixel getTabulatorBarColor(void)
10104 {
10105   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10106   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10107   int gd_x = gd->x + gd_gi1->border.width / 2;
10108   int gd_y = gd->y + gd_gi1->height - 1;
10109
10110   return GetPixel(gd->bitmap, gd_x, gd_y);
10111 }
10112
10113 static void DrawLevelConfigTabulatorGadgets(void)
10114 {
10115   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10116   Pixel tab_color = getTabulatorBarColor();
10117   int id_first = ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL;
10118   int id_last  = ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR;
10119   int i;
10120
10121   // draw additional "engine" tabulator when using native BD engine
10122   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
10123     id_last = ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE;
10124
10125   for (i = id_first; i <= id_last; i++)
10126   {
10127     int gadget_id = textbutton_info[i].gadget_id;
10128     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10129     boolean active = (i != edit_mode_levelconfig);
10130
10131     // draw background line below tabulator button
10132     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10133
10134     // draw solid line below inactive tabulator buttons
10135     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10136       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10137                     ED_GADGET_TINY_DISTANCE, tab_color);
10138
10139     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10140     MapTextbuttonGadget(i);
10141   }
10142
10143   // draw little border line below tabulator buttons
10144   if (tab_color != BLACK_PIXEL)                 // black => transparent
10145     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10146                   ED_GADGET_TINY_DISTANCE,
10147                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10148 }
10149
10150 static void DrawPropertiesTabulatorGadgets(void)
10151 {
10152   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10153   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10154   int gd_x = gd->x + gd_gi1->border.width / 2;
10155   int gd_y = gd->y + gd_gi1->height - 1;
10156   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10157   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
10158   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
10159   int i;
10160
10161   // draw two config tabulators for player elements
10162   if (IS_PLAYER_ELEMENT(properties_element))
10163     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
10164
10165   // draw two config and one "change" tabulator for custom elements
10166   if (IS_CUSTOM_ELEMENT(properties_element))
10167     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
10168
10169   for (i = id_first; i <= id_last; i++)
10170   {
10171     int gadget_id = textbutton_info[i].gadget_id;
10172     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10173     boolean active = (i != edit_mode_properties);
10174
10175     // use "config 1" and "config 2" instead of "config" for players and CEs
10176     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
10177         (IS_PLAYER_ELEMENT(properties_element) ||
10178          IS_CUSTOM_ELEMENT(properties_element)))
10179       continue;
10180
10181     // draw background line below tabulator button
10182     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10183
10184     // draw solid line below inactive tabulator buttons
10185     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10186       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10187                     ED_GADGET_TINY_DISTANCE, tab_color);
10188
10189     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10190     MapTextbuttonGadget(i);
10191   }
10192
10193   // draw little border line below tabulator buttons
10194   if (tab_color != BLACK_PIXEL)                 // black => transparent
10195     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10196                   ED_GADGET_TINY_DISTANCE,
10197                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10198 }
10199
10200 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
10201 {
10202   DrawText(SX + xpos, SY + ypos, text, font_nr);
10203 }
10204
10205 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
10206                                            int xpos, int ypos)
10207 {
10208   int font_width = getFontWidth(font_nr);
10209   int font_height = getFontHeight(font_nr);
10210   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
10211   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
10212
10213   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
10214                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
10215                       TRUE, FALSE, FALSE);
10216 }
10217
10218 static void DrawLevelConfigLevel(void)
10219 {
10220   int i;
10221
10222   // draw counter gadgets
10223   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
10224     MapCounterButtons(i);
10225
10226   // draw checkbutton gadgets
10227   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
10228     MapCheckbuttonGadget(i);
10229
10230   // draw selectbox gadgets
10231   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
10232     MapSelectboxGadget(i);
10233
10234   // draw text input gadgets
10235   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
10236     MapTextInputGadget(i);
10237 }
10238
10239 static char *getLevelSubdirFromSaveMode(int save_mode)
10240 {
10241   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
10242     return getNewUserLevelSubdir();
10243
10244   return leveldir_current->subdir;
10245 }
10246
10247 static void DrawLevelConfigLevelSet_DirectoryInfo(void)
10248 {
10249   char *directory_text = "Level set directory:";
10250   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
10251   int font1_nr = FONT_TEXT_1;
10252   int font2_nr = FONT_TEXT_2;
10253   int font1_height = getFontHeight(font1_nr);
10254   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
10255   int x = ED_LEVEL_SETTINGS_X(0);
10256   int y = ED_LEVEL_SETTINGS_Y(6);
10257
10258   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
10259   PrintInfoText(directory_name, font2_nr, x, y);
10260 }
10261
10262 static void DrawLevelConfigLevelSet(void)
10263 {
10264   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
10265   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
10266   int i;
10267
10268   // draw counter gadgets
10269   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
10270     MapCounterButtons(i);
10271
10272   // draw checkbutton gadgets
10273   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
10274   {
10275     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
10276         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
10277         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
10278       continue;
10279
10280     MapCheckbuttonGadget(i);
10281   }
10282
10283   // draw selectbox gadgets
10284   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
10285     MapSelectboxGadget(i);
10286
10287   // draw text input gadgets
10288   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
10289     MapTextInputGadget(i);
10290
10291   // draw textbutton gadgets
10292   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
10293
10294   // draw info text
10295   DrawLevelConfigLevelSet_DirectoryInfo();
10296 }
10297
10298 static void DrawLevelConfigEditor(void)
10299 {
10300   int i;
10301
10302   // draw counter gadgets
10303   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
10304     MapCounterButtons(i);
10305
10306   // draw checkbutton gadgets
10307   for (i = ED_CHECKBUTTON_ID_EDITOR_FIRST; i <= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
10308     MapCheckbuttonGadget(i);
10309
10310   // draw radiobutton gadgets
10311   for (i = ED_RADIOBUTTON_ID_EDITOR_FIRST; i <= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
10312     MapRadiobuttonGadget(i);
10313
10314   // draw drawing area
10315   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
10316
10317   // draw textbutton gadgets
10318   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
10319 }
10320
10321 static void DrawLevelConfigEngine(void)
10322 {
10323   int i;
10324
10325   // draw counter gadgets
10326   if (level.bd_scheduling_type == GD_SCHEDULING_MILLISECONDS)
10327   {
10328     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_MS);
10329     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES);
10330   }
10331   else
10332   {
10333     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_C64);
10334     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS);
10335   }
10336
10337   // draw checkbutton gadgets
10338   for (i = ED_CHECKBUTTON_ID_ENGINE_FIRST; i <= ED_CHECKBUTTON_ID_ENGINE_LAST; i++)
10339     MapCheckbuttonGadget(i);
10340
10341   // draw selectbox gadgets
10342   for (i = ED_SELECTBOX_ID_ENGINE_FIRST; i <= ED_SELECTBOX_ID_ENGINE_LAST; i++)
10343     MapSelectboxGadget(i);
10344 }
10345
10346 static void DrawLevelConfigWindow(void)
10347 {
10348   char *text = "Global Settings";
10349   int font_nr = FONT_TITLE_1;
10350   struct MenuPosInfo *pos = &editor.settings.headline;
10351   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
10352   int sy = SY + pos->y;
10353
10354   stick_element_properties_window = FALSE;
10355
10356   SetAutomaticNumberOfGemsNeeded();
10357
10358   UnmapLevelEditorFieldGadgets();
10359
10360   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10361   ClearField();
10362
10363   DrawText(sx, sy, text, font_nr);
10364
10365   DrawLevelConfigTabulatorGadgets();
10366
10367   if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVEL)
10368     DrawLevelConfigLevel();
10369   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVELSET)
10370     DrawLevelConfigLevelSet();
10371   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_EDITOR)
10372     DrawLevelConfigEditor();
10373   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_ENGINE)
10374     DrawLevelConfigEngine();
10375 }
10376
10377 static void DrawCustomContentArea(void)
10378 {
10379   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
10380   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10381   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
10382   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
10383   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
10384   int xoffset = ED_GADGET_SPACE_DISTANCE;
10385
10386   // add distance for potential left text (without drawing area border)
10387   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
10388
10389   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10390
10391   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
10392 }
10393
10394 static void DrawCustomChangeContentArea(void)
10395 {
10396   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
10397   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10398   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
10399   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
10400   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
10401   int xoffset = ED_GADGET_SPACE_DISTANCE;
10402
10403   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10404
10405   MapDrawingArea(id);
10406 }
10407
10408 static void RemoveElementContentArea(int id, int font_height)
10409 {
10410   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10411
10412   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
10413                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
10414                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10415                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
10416                  ED_GADGET_TEXT_DISTANCE + font_height);
10417 }
10418
10419 static void DrawYamYamContentAreas(void)
10420 {
10421   int font_nr = FONT_TEXT_1;
10422   int font_height = getFontHeight(font_nr);
10423   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10424   int yoffset = (tilesize - font_height) / 2;
10425   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
10426   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
10427   int i;
10428
10429   // display counter to choose number of element content areas
10430   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
10431
10432   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10433   {
10434     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
10435
10436     if (i < level.num_yamyam_contents)
10437     {
10438       MapDrawingArea(id);
10439     }
10440     else
10441     {
10442       UnmapDrawingArea(id);
10443
10444       // delete content areas in case of reducing number of them
10445       RemoveElementContentArea(id, font_height);
10446     }
10447   }
10448
10449   DrawText(x, y + 0 * tilesize, "content", font_nr);
10450   DrawText(x, y + 1 * tilesize, "when",    font_nr);
10451   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
10452 }
10453
10454 static void DrawMagicBallContentAreas(void)
10455 {
10456   int font_nr = FONT_TEXT_1;
10457   int font_height = getFontHeight(font_nr);
10458   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10459   int yoffset = (tilesize - font_height) / 2;
10460   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
10461   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
10462   int i;
10463
10464   // display counter to choose number of element content areas
10465   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
10466
10467   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10468   {
10469     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
10470
10471     if (i < level.num_ball_contents)
10472     {
10473       MapDrawingArea(id);
10474     }
10475     else
10476     {
10477       UnmapDrawingArea(id);
10478
10479       // delete content areas in case of reducing number of them
10480       RemoveElementContentArea(id, font_height);
10481     }
10482   }
10483
10484   DrawText(x, y + 0 * tilesize, "generated", font_nr);
10485   DrawText(x, y + 1 * tilesize, "when",      font_nr);
10486   DrawText(x, y + 2 * tilesize, "active",    font_nr);
10487 }
10488
10489 static void DrawAndroidElementArea(void)
10490 {
10491   int id = ED_DRAWING_ID_ANDROID_CONTENT;
10492   int num_elements = level.num_android_clone_elements;
10493   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10494   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10495   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10496   int xsize = MAX_ANDROID_ELEMENTS;
10497   int ysize = 1;
10498
10499   // display counter to choose number of element areas
10500   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
10501
10502   if (drawingarea_info[id].text_left != NULL)
10503     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10504
10505   UnmapDrawingArea(id);
10506
10507   ModifyEditorDrawingArea(id, num_elements, 1);
10508
10509   // delete content areas in case of reducing number of them
10510   DrawBackground(sx, sy,
10511                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10512                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10513
10514   MapDrawingArea(id);
10515 }
10516
10517 static void DrawGroupElementArea(void)
10518 {
10519   int id = ED_DRAWING_ID_GROUP_CONTENT;
10520   int num_elements = group_element_info.num_elements;
10521   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10522   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10523   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10524   int xsize = MAX_ELEMENTS_IN_GROUP;
10525   int ysize = 1;
10526
10527   if (drawingarea_info[id].text_left != NULL)
10528     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10529
10530   UnmapDrawingArea(id);
10531
10532   ModifyEditorDrawingArea(id, num_elements, 1);
10533
10534   // delete content areas in case of reducing number of them
10535   DrawBackground(sx, sy,
10536                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10537                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10538
10539   MapDrawingArea(id);
10540 }
10541
10542 static void DrawPlayerInitialInventoryArea(int element)
10543 {
10544   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
10545   int player_nr = GET_PLAYER_NR(element);
10546   int num_elements = level.initial_inventory_size[player_nr];
10547   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10548   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10549   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10550   int xsize = MAX_INITIAL_INVENTORY_SIZE;
10551   int ysize = 1;
10552
10553   // determine horizontal position to the right of specified gadget
10554   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
10555     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
10556           ED_DRAWINGAREA_TEXT_DISTANCE);
10557
10558   // determine horizontal offset for leading text
10559   if (drawingarea_info[id].text_left != NULL)
10560     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10561
10562   UnmapDrawingArea(id);
10563
10564   ModifyEditorDrawingArea(id, num_elements, 1);
10565
10566   // delete content areas in case of reducing number of them
10567   DrawBackground(sx, sy,
10568                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10569                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10570
10571   MapDrawingArea(id);
10572 }
10573
10574 static void DrawMMBallContentArea(void)
10575 {
10576   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
10577   int num_elements = level.num_mm_ball_contents;
10578   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10579   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10580   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10581   int xsize = MAX_MM_BALL_CONTENTS;
10582   int ysize = 1;
10583
10584   if (drawingarea_info[id].text_left != NULL)
10585     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10586
10587   UnmapDrawingArea(id);
10588
10589   ModifyEditorDrawingArea(id, num_elements, 1);
10590
10591   // delete content areas in case of reducing number of them
10592   DrawBackground(sx, sy,
10593                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10594                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10595
10596   MapDrawingArea(id);
10597 }
10598
10599 static void DrawEnvelopeTextArea(int envelope_nr)
10600 {
10601   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
10602   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
10603
10604   UnmapGadget(gi);
10605
10606   DrawBackground(gi->x, gi->y,
10607                  gi->textarea.crop_width, gi->textarea.crop_height);
10608
10609   if (envelope_nr != -1)
10610     textarea_info[id].value = level.envelope[envelope_nr].text;
10611
10612   ModifyGadget(gi, GDI_AREA_SIZE,
10613                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
10614                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
10615                GDI_END);
10616
10617   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
10618 }
10619
10620 static void DrawPropertiesInfo(void)
10621 {
10622   static struct
10623   {
10624     int value;
10625     char *text;
10626   }
10627   properties[] =
10628   {
10629     // configurable properties
10630
10631     { EP_WALKABLE_OVER,         "- player can walk over it"             },
10632     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
10633     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
10634     { EP_PASSABLE_OVER,         "- player can pass over it"             },
10635     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
10636     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
10637     { EP_PROTECTED,             "- player is protected by it"           },
10638
10639     { EP_DIGGABLE,              "- can be digged away"                  },
10640     { EP_COLLECTIBLE,           "- can be collected"                    },
10641     { EP_DROPPABLE,             "- can be dropped after collecting"     },
10642     { EP_THROWABLE,             "- can be thrown after collecting"      },
10643     { EP_PUSHABLE,              "- can be pushed"                       },
10644
10645     { EP_CAN_FALL,              "- can fall"                            },
10646     { EP_CAN_MOVE,              "- can move"                            },
10647
10648     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
10649 #if 0
10650     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
10651 #endif
10652     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
10653
10654     { EP_SLIPPERY,              "- slippery for falling elements"       },
10655     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
10656
10657     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
10658     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
10659     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
10660     { EP_DONT_TOUCH,            "- deadly when touching"                },
10661
10662     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
10663
10664     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
10665     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
10666     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
10667
10668     { EP_CAN_CHANGE,            "- can change to other element"         },
10669
10670     // pre-defined properties
10671     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
10672     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
10673     { EP_SWITCHABLE,            "- can be switched"                     },
10674 #if 0
10675     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
10676 #endif
10677
10678     { -1,                       NULL                                    }
10679   };
10680   char *filename = getElementDescriptionFilename(properties_element);
10681   char *num_elements_text = "In this level: ";
10682   char *num_similar_text = "Similar tiles: ";
10683   char *properties_text = "Standard properties: ";
10684   char *description_text = "Description:";
10685   char *no_description_text = "No description available.";
10686   char *none_text = "None";
10687   float percentage;
10688   int num_elements_in_level = 0;
10689   int num_similar_in_level = 0;
10690   int num_hires_tiles_in_level = 0;
10691   int num_standard_properties = 0;
10692   int font1_nr = FONT_TEXT_1;
10693   int font2_nr = FONT_TEXT_2;
10694   int font1_width = getFontWidth(font1_nr);
10695   int font1_height = getFontHeight(font1_nr);
10696   int font2_height = getFontHeight(font2_nr);
10697   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
10698   int font2_yoffset = (font1_height - font2_height) / 2;
10699   int num_elements_text_len = strlen(num_elements_text) * font1_width;
10700   int num_similar_text_len = strlen(num_similar_text) * font1_width;
10701   int properties_text_len = strlen(properties_text) * font1_width;
10702   int xpos = ED_ELEMENT_SETTINGS_X(0);
10703   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10704   int i, x, y;
10705
10706   if (setup.editor.show_element_token)
10707   {
10708     int font3_nr = FONT_TEXT_3;
10709     int font3_height = getFontHeight(font3_nr);
10710
10711     DrawTextF(xpos, ypos, font3_nr,
10712               "[%s]", element_info[properties_element].token_name);
10713
10714     ypos += 2 * font3_height;
10715   }
10716
10717   // ----- print number of elements / percentage of this element in level
10718
10719   for (y = 0; y < lev_fieldy; y++)
10720   {
10721     for (x = 0; x < lev_fieldx; x++)
10722     {
10723       if (Tile[x][y] == properties_element)
10724       {
10725         num_elements_in_level++;
10726       }
10727       else if (IS_MM_WALL(Tile[x][y]) &&
10728                map_mm_wall_element(Tile[x][y]) == properties_element)
10729       {
10730         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
10731       }
10732     }
10733   }
10734
10735   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10736
10737   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
10738
10739   if (num_hires_tiles_in_level > 0)
10740     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10741               "%d wall tiles", num_hires_tiles_in_level);
10742   else if (num_elements_in_level > 0)
10743     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10744               "%d (%.2f %%)", num_elements_in_level, percentage);
10745   else
10746     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10747               none_text);
10748
10749   // ----- print number of similar elements / percentage of them in level
10750
10751   for (y = 0; y < lev_fieldy; y++)
10752   {
10753     for (x = 0; x < lev_fieldx; x++)
10754     {
10755       if (strEqual(element_info[Tile[x][y]].class_name,
10756                    element_info[properties_element].class_name))
10757       {
10758         num_similar_in_level++;
10759       }
10760     }
10761   }
10762
10763   if (num_similar_in_level != num_elements_in_level)
10764   {
10765     ypos += 1 * MAX(font1_height, font2_height);
10766
10767     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10768
10769     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
10770
10771     if (num_similar_in_level > 0)
10772       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10773                 "%d (%.2f %%)", num_similar_in_level, percentage);
10774     else
10775       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10776                 none_text);
10777   }
10778
10779   ypos += 2 * MAX(font1_height, font2_height);
10780
10781   // ----- print standard properties of this element
10782
10783   DrawTextS(xpos, ypos, font1_nr, properties_text);
10784
10785   ypos += line1_height;
10786
10787   for (i = 0; properties[i].value != -1; i++)
10788   {
10789     if (!HAS_PROPERTY(properties_element, properties[i].value))
10790       continue;
10791
10792     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
10793
10794     ypos += font2_height;
10795
10796     num_standard_properties++;
10797   }
10798
10799   if (num_standard_properties == 0)
10800   {
10801     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
10802               font2_nr, none_text);
10803
10804     ypos -= (line1_height - font1_height);
10805   }
10806
10807   ypos += MAX(font1_height, font2_height);
10808
10809   // ----- print special description of this element
10810
10811   PrintInfoText(description_text, font1_nr, xpos, ypos);
10812
10813   ypos += line1_height;
10814
10815   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
10816     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
10817 }
10818
10819 #define TEXT_COLLECTING         "Score for collecting"
10820 #define TEXT_COLLECTING_EXTRA   "Score for extra diamonds"
10821 #define TEXT_SMASHING           "Score for smashing"
10822 #define TEXT_SLURPING           "Score for slurping robot"
10823 #define TEXT_CRACKING           "Score for cracking"
10824 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
10825 #define TEXT_AMOEBA_THRESHOED   "Size for turning to rocks"
10826 #define TEXT_AMOEBA_SLOW_TIME   "Slow growth time (seconds)"
10827 #define TEXT_AMOEBA_SLOW_RATE   "Slow growth rate (percent)"
10828 #define TEXT_AMOEBA_FAST_RATE   "Fast growth rate (percent)"
10829 #define TEXT_DURATION           "Duration when activated"
10830 #define TEXT_DELAY_ON           "Delay before activating"
10831 #define TEXT_DELAY_OFF          "Delay before deactivating"
10832 #define TEXT_DELAY_CHANGING     "Delay before changing"
10833 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
10834 #define TEXT_DELAY_MOVING       "Delay before moving"
10835 #define TEXT_BALL_DELAY         "Element generation delay"
10836 #define TEXT_MOVE_SPEED         "Speed of android moving"
10837 #define TEXT_CLONE_SPEED        "Speed of android cloning"
10838 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
10839 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
10840 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
10841 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
10842 #define TEXT_TIME_BONUS         "Extra time to solve level"
10843 #define TEXT_TIME_PENALTY       "Time penalty if destroyed"
10844
10845 static struct
10846 {
10847   int element;
10848   int *value;
10849   char *text;
10850   int min_value;
10851   int max_value;
10852 } elements_with_counter[] =
10853 {
10854   { EL_EMERALD,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10855   { EL_BD_DIAMOND,              &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10856   { EL_BD_DIAMOND,              &level.score[SC_DIAMOND_EXTRA],         TEXT_COLLECTING_EXTRA   },
10857   { EL_EMERALD_YELLOW,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10858   { EL_EMERALD_RED,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10859   { EL_EMERALD_PURPLE,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10860   { EL_SP_INFOTRON,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10861   { EL_DIAMOND,                 &level.score[SC_DIAMOND],               TEXT_COLLECTING         },
10862   { EL_CRYSTAL,                 &level.score[SC_CRYSTAL],               TEXT_COLLECTING         },
10863   { EL_PEARL,                   &level.score[SC_PEARL],                 TEXT_COLLECTING         },
10864   { EL_BUG,                     &level.score[SC_BUG],                   TEXT_SMASHING           },
10865   { EL_BUG_RIGHT,               &level.score[SC_BUG],                   TEXT_SMASHING           },
10866   { EL_BUG_UP,                  &level.score[SC_BUG],                   TEXT_SMASHING           },
10867   { EL_BUG_LEFT,                &level.score[SC_BUG],                   TEXT_SMASHING           },
10868   { EL_BUG_DOWN,                &level.score[SC_BUG],                   TEXT_SMASHING           },
10869   { EL_BD_BUTTERFLY,            &level.score[SC_BUG],                   TEXT_SMASHING           },
10870   { EL_BD_BUTTERFLY_RIGHT,      &level.score[SC_BUG],                   TEXT_SMASHING           },
10871   { EL_BD_BUTTERFLY_UP,         &level.score[SC_BUG],                   TEXT_SMASHING           },
10872   { EL_BD_BUTTERFLY_LEFT,       &level.score[SC_BUG],                   TEXT_SMASHING           },
10873   { EL_BD_BUTTERFLY_DOWN,       &level.score[SC_BUG],                   TEXT_SMASHING           },
10874   { EL_SP_ELECTRON,             &level.score[SC_BUG],                   TEXT_SMASHING           },
10875   { EL_SPACESHIP,               &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10876   { EL_SPACESHIP_RIGHT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10877   { EL_SPACESHIP_UP,            &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10878   { EL_SPACESHIP_LEFT,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10879   { EL_SPACESHIP_DOWN,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10880   { EL_BD_FIREFLY,              &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10881   { EL_BD_FIREFLY_RIGHT,        &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10882   { EL_BD_FIREFLY_UP,           &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10883   { EL_BD_FIREFLY_LEFT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10884   { EL_BD_FIREFLY_DOWN,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10885   { EL_SP_SNIKSNAK,             &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10886   { EL_YAMYAM,                  &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10887   { EL_YAMYAM_LEFT,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10888   { EL_YAMYAM_RIGHT,            &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10889   { EL_YAMYAM_UP,               &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10890   { EL_YAMYAM_DOWN,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10891   { EL_DARK_YAMYAM,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10892   { EL_ROBOT,                   &level.score[SC_ROBOT],                 TEXT_SMASHING           },
10893   { EL_PACMAN,                  &level.score[SC_PACMAN],                TEXT_SMASHING           },
10894   { EL_PACMAN_RIGHT,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
10895   { EL_PACMAN_UP,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
10896   { EL_PACMAN_LEFT,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
10897   { EL_PACMAN_DOWN,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
10898   { EL_NUT,                     &level.score[SC_NUT],                   TEXT_CRACKING           },
10899   { EL_DYNAMITE,                &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10900   { EL_EM_DYNAMITE,             &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10901   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10902   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10903   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10904   { EL_SHIELD_NORMAL,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
10905   { EL_SHIELD_DEADLY,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
10906   { EL_EXTRA_TIME,              &level.extra_time_score,                TEXT_COLLECTING         },
10907   { EL_KEY_1,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10908   { EL_KEY_2,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10909   { EL_KEY_3,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10910   { EL_KEY_4,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10911   { EL_EM_KEY_1,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10912   { EL_EM_KEY_2,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10913   { EL_EM_KEY_3,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10914   { EL_EM_KEY_4,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10915   { EL_EMC_KEY_5,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10916   { EL_EMC_KEY_6,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10917   { EL_EMC_KEY_7,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10918   { EL_EMC_KEY_8,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10919   { EL_DC_KEY_WHITE,            &level.score[SC_KEY],                   TEXT_COLLECTING         },
10920   { EL_MM_KETTLE,               &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10921   { EL_DF_CELL,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10922   { EL_MM_KEY,                  &level.score[SC_KEY],                   TEXT_COLLECTING         },
10923   { EL_MM_LIGHTBALL,            &level.score[SC_ELEM_BONUS],            TEXT_COLLECTING         },
10924   { EL_MM_PACMAN,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
10925   { EL_MM_PACMAN_RIGHT,         &level.score[SC_PACMAN],                TEXT_SMASHING           },
10926   { EL_MM_PACMAN_UP,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
10927   { EL_MM_PACMAN_LEFT,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
10928   { EL_MM_PACMAN_DOWN,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
10929   { EL_AMOEBA_WET,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10930   { EL_AMOEBA_DRY,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10931   { EL_AMOEBA_FULL,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10932   { EL_BD_AMOEBA,               &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10933   { EL_EMC_DRIPPER,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10934   { EL_BD_AMOEBA,               &level.bd_amoeba_threshold_too_big,     TEXT_AMOEBA_THRESHOED   },
10935   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_time,      TEXT_AMOEBA_SLOW_TIME   },
10936   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_rate,      TEXT_AMOEBA_SLOW_RATE,
10937                                 0, 100                                                          },
10938   { EL_BD_AMOEBA,               &level.bd_amoeba_fast_growth_rate,      TEXT_AMOEBA_FAST_RATE,
10939                                 0, 100                                                          },
10940   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_threshold_too_big,   TEXT_AMOEBA_THRESHOED   },
10941   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_time,    TEXT_AMOEBA_SLOW_TIME   },
10942   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_rate,    TEXT_AMOEBA_SLOW_RATE,
10943                                 0, 100                                                          },
10944   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_fast_growth_rate,    TEXT_AMOEBA_FAST_RATE,
10945                                 0, 100                                                          },
10946   { EL_MAGIC_WALL,              &level.time_magic_wall,                 TEXT_DURATION           },
10947   { EL_BD_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
10948   { EL_DC_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
10949   { EL_ROBOT_WHEEL,             &level.time_wheel,                      TEXT_DURATION           },
10950   { EL_TIMEGATE_SWITCH,         &level.time_timegate,                   TEXT_DURATION           },
10951   { EL_DC_TIMEGATE_SWITCH,      &level.time_timegate,                   TEXT_DURATION           },
10952   { EL_LIGHT_SWITCH,            &level.time_light,                      TEXT_DURATION           },
10953   { EL_LIGHT_SWITCH_ACTIVE,     &level.time_light,                      TEXT_DURATION           },
10954   { EL_SHIELD_NORMAL,           &level.shield_normal_time,              TEXT_DURATION           },
10955   { EL_SHIELD_DEADLY,           &level.shield_deadly_time,              TEXT_DURATION           },
10956   { EL_BD_CLOCK,                &level.bd_clock_extra_time,             TEXT_TIME_BONUS,
10957                                 -100, 100                                                       },
10958   { EL_BD_VOODOO_DOLL,          &level.bd_voodoo_penalty_time,          TEXT_TIME_PENALTY,
10959                                 0, 100                                                          },
10960   { EL_EXTRA_TIME,              &level.extra_time,                      TEXT_TIME_BONUS         },
10961   { EL_TIME_ORB_FULL,           &level.time_orb_time,                   TEXT_TIME_BONUS         },
10962   { EL_GAME_OF_LIFE,            &level.game_of_life[0],                 TEXT_GAME_OF_LIFE_1,0,8 },
10963   { EL_GAME_OF_LIFE,            &level.game_of_life[1],                 TEXT_GAME_OF_LIFE_2,0,8 },
10964   { EL_GAME_OF_LIFE,            &level.game_of_life[2],                 TEXT_GAME_OF_LIFE_3,0,8 },
10965   { EL_GAME_OF_LIFE,            &level.game_of_life[3],                 TEXT_GAME_OF_LIFE_4,0,8 },
10966   { EL_BIOMAZE,                 &level.biomaze[0],                      TEXT_GAME_OF_LIFE_1,0,8 },
10967   { EL_BIOMAZE,                 &level.biomaze[1],                      TEXT_GAME_OF_LIFE_2,0,8 },
10968   { EL_BIOMAZE,                 &level.biomaze[2],                      TEXT_GAME_OF_LIFE_3,0,8 },
10969   { EL_BIOMAZE,                 &level.biomaze[3],                      TEXT_GAME_OF_LIFE_4,0,8 },
10970   { EL_EMC_ANDROID,             &level.android_move_time,               TEXT_MOVE_SPEED         },
10971   { EL_EMC_ANDROID,             &level.android_clone_time,              TEXT_CLONE_SPEED        },
10972   { EL_EMC_MAGIC_BALL,          &level.ball_time,                       TEXT_BALL_DELAY         },
10973   { EL_EMC_LENSES,              &level.lenses_score,                    TEXT_COLLECTING         },
10974   { EL_EMC_MAGNIFIER,           &level.magnify_score,                   TEXT_COLLECTING         },
10975   { EL_SPRING,                  &level.slurp_score,                     TEXT_SLURPING           },
10976   { EL_SPRING_LEFT,             &level.slurp_score,                     TEXT_SLURPING           },
10977   { EL_SPRING_RIGHT,            &level.slurp_score,                     TEXT_SLURPING           },
10978   { EL_EMC_LENSES,              &level.lenses_time,                     TEXT_DURATION           },
10979   { EL_EMC_MAGNIFIER,           &level.magnify_time,                    TEXT_DURATION           },
10980   { EL_MM_FUSE_ACTIVE,          &level.mm_time_fuse,                    TEXT_DELAY_OFF          },
10981   { EL_MM_BOMB,                 &level.mm_time_bomb,                    TEXT_DELAY_EXPLODING    },
10982   { EL_MM_GRAY_BALL,            &level.mm_time_ball,                    TEXT_DELAY_CHANGING     },
10983   { EL_MM_STEEL_BLOCK,          &level.mm_time_block,                   TEXT_DELAY_MOVING       },
10984   { EL_MM_WOODEN_BLOCK,         &level.mm_time_block,                   TEXT_DELAY_MOVING       },
10985
10986   { -1,                         NULL,                                   NULL                    }
10987 };
10988
10989 static boolean checkPropertiesConfig(int element)
10990 {
10991   int i;
10992
10993   // special case: empty space customization only available in R'n'D game engine
10994   if (element == EL_EMPTY_SPACE && level.game_engine_type != GAME_ENGINE_TYPE_RND)
10995     return FALSE;
10996
10997   // special case: BD style rock customization only available in BD game engine
10998   if (element == EL_BD_ROCK && level.game_engine_type != GAME_ENGINE_TYPE_BD)
10999     return FALSE;
11000
11001   if (IS_GEM(element) ||
11002       IS_CUSTOM_ELEMENT(element) ||
11003       IS_GROUP_ELEMENT(element) ||
11004       IS_EMPTY_ELEMENT(element) ||
11005       IS_BALLOON_ELEMENT(element) ||
11006       IS_ENVELOPE(element) ||
11007       IS_MM_ENVELOPE(element) ||
11008       IS_MM_MCDUFFIN(element) ||
11009       IS_DF_LASER(element) ||
11010       IS_PLAYER_ELEMENT(element) ||
11011       IS_BD_PLAYER_ELEMENT(element) ||
11012       IS_SOKOBAN_OBJECT_OR_FIELD(element) ||
11013       HAS_EDITOR_CONTENT(element) ||
11014       CAN_GROW(element) ||
11015       COULD_MOVE_INTO_ACID(element) ||
11016       MAYBE_DONT_COLLIDE_WITH(element) ||
11017       element == EL_BD_ROCK ||
11018       element == EL_BD_MEGA_ROCK ||
11019       element == EL_BD_SWEET ||
11020       element == EL_BD_VOODOO_DOLL)
11021   {
11022     return TRUE;
11023   }
11024   else
11025   {
11026     for (i = 0; elements_with_counter[i].element != -1; i++)
11027       if (elements_with_counter[i].element == element)
11028         return TRUE;
11029   }
11030
11031   return FALSE;
11032 }
11033
11034 static void SetAutomaticNumberOfGemsNeeded(void)
11035 {
11036   int x, y;
11037
11038   if (!level.auto_count_gems)
11039     return;
11040
11041   level.gems_needed = 0;
11042
11043   for (x = 0; x < lev_fieldx; x++)
11044   {
11045     for (y = 0; y < lev_fieldy; y++)
11046     {
11047       int element = Tile[x][y];
11048
11049       switch (element)
11050       {
11051         case EL_EMERALD:
11052         case EL_EMERALD_YELLOW:
11053         case EL_EMERALD_RED:
11054         case EL_EMERALD_PURPLE:
11055         case EL_BD_DIAMOND:
11056         case EL_WALL_EMERALD:
11057         case EL_WALL_EMERALD_YELLOW:
11058         case EL_WALL_EMERALD_RED:
11059         case EL_WALL_EMERALD_PURPLE:
11060         case EL_WALL_BD_DIAMOND:
11061         case EL_NUT:
11062         case EL_SP_INFOTRON:
11063         case EL_MM_KETTLE:
11064         case EL_DF_CELL:
11065           level.gems_needed++;
11066           break;
11067
11068         case EL_DIAMOND:
11069         case EL_WALL_DIAMOND:
11070           level.gems_needed += 3;
11071           break;
11072
11073         case EL_PEARL:
11074         case EL_WALL_PEARL:
11075           level.gems_needed += 5;
11076           break;
11077
11078         case EL_CRYSTAL:
11079         case EL_WALL_CRYSTAL:
11080           level.gems_needed += 8;
11081           break;
11082
11083         default:
11084           break;
11085       }
11086     }
11087   }
11088
11089   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
11090 }
11091
11092 static void DrawPropertiesConfig(void)
11093 {
11094   boolean draw_footer_line = FALSE;
11095   int max_num_element_counters = 4;
11096   int num_element_counters = 0;
11097   int i;
11098
11099   if (!checkPropertiesConfig(properties_element))
11100   {
11101     int xpos = ED_ELEMENT_SETTINGS_X(0);
11102     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
11103
11104     PrintInfoText("No configuration options available.", FONT_TEXT_1, xpos, ypos);
11105
11106     return;
11107   }
11108
11109   // check if there are elements where a value can be chosen for
11110   for (i = 0; elements_with_counter[i].element != -1; i++)
11111   {
11112     if (elements_with_counter[i].element != properties_element)
11113       continue;
11114
11115     // special case: score for extra diamonds only available in BD game engine
11116     if (elements_with_counter[i].element == EL_BD_DIAMOND &&
11117         elements_with_counter[i].value == &level.score[SC_DIAMOND_EXTRA] &&
11118         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11119       continue;
11120
11121     // special case: some amoeba counters only available in BD game engine
11122     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11123         elements_with_counter[i].value != &level.amoeba_speed &&
11124         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11125       continue;
11126
11127     // special case: some amoeba counters only available in R'n'D game engine
11128     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11129         elements_with_counter[i].value == &level.amoeba_speed &&
11130         level.game_engine_type == GAME_ENGINE_TYPE_BD)
11131       continue;
11132
11133     int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
11134
11135     counterbutton_info[counter_id].y =
11136       ED_ELEMENT_SETTINGS_YPOS((HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
11137                                (CAN_GROW(properties_element)                ? 1 : 0) +
11138                                (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
11139                                (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
11140                                (properties_element == EL_BD_VOODOO_DOLL     ? 4 : 0) +
11141                                (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
11142                                num_element_counters);
11143
11144     // special case: set amoeba counters for BD game engine separately
11145     if ((properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD) ||
11146         (properties_element == EL_BD_AMOEBA_2))
11147       counterbutton_info[counter_id].y = ED_ELEMENT_SETTINGS_YPOS(3 + num_element_counters);
11148
11149     counterbutton_info[counter_id].value      = elements_with_counter[i].value;
11150     counterbutton_info[counter_id].text_right = elements_with_counter[i].text;
11151     counterbutton_info[counter_id].min_value  = elements_with_counter[i].min_value;
11152     counterbutton_info[counter_id].max_value  = elements_with_counter[i].max_value;
11153
11154     // default: counter values between 0 and 999
11155     if (counterbutton_info[counter_id].max_value == 0)
11156       counterbutton_info[counter_id].max_value = 999;
11157
11158     MapCounterButtons(counter_id);
11159
11160     num_element_counters++;
11161     if (num_element_counters >= max_num_element_counters)
11162       break;
11163   }
11164
11165   if (HAS_EDITOR_CONTENT(properties_element))
11166   {
11167     // draw stickybutton gadget
11168     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11169
11170     if (properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11171     {
11172       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11173       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11174
11175       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG);
11176       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED);
11177     }
11178     else if (properties_element == EL_BD_AMOEBA_2)
11179     {
11180       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11181       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11182       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA);
11183
11184       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG);
11185       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED);
11186       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING);
11187       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE);
11188     }
11189     else if (IS_AMOEBOID(properties_element))
11190       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
11191     else if (properties_element == EL_YAMYAM ||
11192              properties_element == EL_YAMYAM_LEFT ||
11193              properties_element == EL_YAMYAM_RIGHT ||
11194              properties_element == EL_YAMYAM_UP ||
11195              properties_element == EL_YAMYAM_DOWN)
11196       DrawYamYamContentAreas();
11197     else if (properties_element == EL_EMC_MAGIC_BALL)
11198     {
11199       DrawMagicBallContentAreas();
11200
11201       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
11202       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
11203     }
11204     else if (properties_element == EL_EMC_ANDROID)
11205       DrawAndroidElementArea();
11206     else if (properties_element == EL_MM_GRAY_BALL)
11207     {
11208       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
11209       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
11210       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
11211       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
11212
11213       DrawMMBallContentArea();
11214     }
11215   }
11216
11217   if (IS_PLAYER_ELEMENT(properties_element))
11218   {
11219     int player_nr = GET_PLAYER_NR(properties_element);
11220
11221     // these properties can be set for every player individually
11222
11223     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11224     {
11225       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
11226         &level.start_element[player_nr];
11227       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
11228         &level.artwork_element[player_nr];
11229       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
11230         &level.explosion_element[player_nr];
11231
11232       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
11233         &level.use_start_element[player_nr];
11234       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
11235         &level.use_artwork_element[player_nr];
11236       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
11237         &level.use_explosion_element[player_nr];
11238       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
11239         &level.initial_player_gravity[player_nr];
11240
11241       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
11242         &level.initial_player_stepsize[player_nr];
11243
11244       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
11245       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
11246                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
11247                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
11248       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
11249       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
11250       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
11251       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
11252       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
11253       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
11254       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
11255       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
11256       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
11257       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
11258       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
11259
11260       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
11261       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
11262       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
11263
11264       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
11265     }
11266     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11267     {
11268       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
11269         &level.initial_inventory_content[player_nr][0];
11270
11271       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
11272         &level.initial_inventory_size[player_nr];
11273
11274       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
11275         &level.use_initial_inventory[player_nr];
11276
11277       // draw checkbutton gadgets
11278       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
11279       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
11280       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
11281
11282       // draw counter gadgets
11283       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
11284
11285       // draw drawing area gadgets
11286       DrawPlayerInitialInventoryArea(properties_element);
11287     }
11288   }
11289
11290   if (IS_BD_PLAYER_ELEMENT(properties_element))
11291   {
11292     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11293       ED_ELEMENT_SETTINGS_YPOS(2);
11294     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11295       ED_ELEMENT_SETTINGS_YPOS(3);
11296     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11297       ED_ELEMENT_SETTINGS_YPOS(4);
11298
11299     // draw checkbutton gadgets
11300     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS);
11301     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE);
11302     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11303
11304     // draw counter gadgets
11305     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11306     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11307
11308     // draw drawing area gadgets
11309     MapDrawingArea(ED_DRAWING_ID_BD_SNAP_ELEMENT);
11310   }
11311
11312   if (properties_element == EL_BD_ROCK && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11313   {
11314     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11315       ED_ELEMENT_SETTINGS_YPOS(0);
11316     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11317       ED_ELEMENT_SETTINGS_YPOS(1);
11318
11319     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11320     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11321   }
11322
11323   if (properties_element == EL_BD_MEGA_ROCK ||
11324       properties_element == EL_BD_SWEET)
11325   {
11326     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11327       ED_ELEMENT_SETTINGS_YPOS(0);
11328     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11329       ED_ELEMENT_SETTINGS_YPOS(1);
11330
11331     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11332     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11333   }
11334
11335   if (properties_element == EL_BD_VOODOO_DOLL)
11336   {
11337     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS);
11338     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER);
11339     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK);
11340     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION);
11341   }
11342
11343   if (properties_element == EL_BD_MAGIC_WALL)
11344   {
11345     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING);
11346     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA);
11347   }
11348
11349   // special case: slippery walls option for gems only available in R'n'D game engine
11350   if (IS_GEM(properties_element) && level.game_engine_type == GAME_ENGINE_TYPE_RND)
11351     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
11352
11353   if (properties_element == EL_EM_DYNAMITE)
11354     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
11355
11356   if (COULD_MOVE_INTO_ACID(properties_element) &&
11357       !IS_PLAYER_ELEMENT(properties_element) &&
11358       (!IS_CUSTOM_ELEMENT(properties_element) ||
11359        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
11360   {
11361     // set position for checkbutton for "can move into acid"
11362     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
11363       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
11364     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
11365       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
11366                                IS_BALLOON_ELEMENT(properties_element) ||
11367                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11368
11369     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
11370   }
11371
11372   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
11373     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
11374
11375   if (properties_element == EL_SPRING ||
11376       properties_element == EL_SPRING_LEFT ||
11377       properties_element == EL_SPRING_RIGHT)
11378     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
11379
11380   if (properties_element == EL_TIME_ORB_FULL)
11381     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
11382
11383   if (properties_element == EL_GAME_OF_LIFE ||
11384       properties_element == EL_BIOMAZE)
11385     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
11386
11387   if (CAN_GROW(properties_element) && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11388   {
11389     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
11390       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11391
11392     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
11393   }
11394
11395   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
11396     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
11397
11398   if (properties_element == EL_SOKOBAN_OBJECT)
11399     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
11400
11401   if (properties_element == EL_SOKOBAN_OBJECT ||
11402       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
11403       properties_element == EL_SOKOBAN_FIELD_FULL)
11404   {
11405     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
11406       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
11407                                0 : 1);
11408
11409     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
11410   }
11411
11412   if (IS_BALLOON_ELEMENT(properties_element))
11413     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
11414
11415   if (IS_ENVELOPE(properties_element) ||
11416       IS_MM_ENVELOPE(properties_element))
11417   {
11418     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
11419     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
11420     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
11421     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
11422     int envelope_nr = ENVELOPE_NR(properties_element);
11423
11424     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
11425     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
11426
11427     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
11428     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
11429
11430     // display counter to choose size of envelope text area
11431     MapCounterButtons(counter1_id);
11432     MapCounterButtons(counter2_id);
11433
11434     // display checkbuttons to choose auto-wrap and alignment properties
11435     MapCheckbuttonGadget(button1_id);
11436     MapCheckbuttonGadget(button2_id);
11437
11438     DrawEnvelopeTextArea(envelope_nr);
11439   }
11440
11441   if (IS_MM_MCDUFFIN(properties_element))
11442   {
11443     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
11444     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
11445     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
11446   }
11447
11448   if (IS_DF_LASER(properties_element))
11449   {
11450     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
11451     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
11452     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
11453   }
11454
11455   if (IS_CUSTOM_ELEMENT(properties_element))
11456   {
11457     // draw stickybutton gadget
11458     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11459
11460     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11461     {
11462       // draw checkbutton gadgets
11463       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
11464            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
11465         MapCheckbuttonGadget(i);
11466
11467       // draw counter gadgets
11468       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
11469            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
11470         MapCounterButtons(i);
11471
11472       // draw selectbox gadgets
11473       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
11474            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
11475         MapSelectboxGadget(i);
11476
11477       // draw textbutton gadgets
11478       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11479
11480       // draw text input gadgets
11481       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11482
11483       // draw drawing area gadgets
11484       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11485
11486       draw_footer_line = TRUE;
11487     }
11488     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11489     {
11490       // draw checkbutton gadgets
11491       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
11492            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
11493         MapCheckbuttonGadget(i);
11494
11495       // draw counter gadgets
11496       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
11497            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
11498         MapCounterButtons(i);
11499
11500       // draw selectbox gadgets
11501       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
11502            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
11503         MapSelectboxGadget(i);
11504
11505       // draw drawing area gadgets
11506       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
11507       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
11508       DrawCustomContentArea();
11509     }
11510   }
11511   else if (IS_GROUP_ELEMENT(properties_element))
11512   {
11513     // draw stickybutton gadget
11514     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11515
11516     // draw checkbutton gadgets
11517     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11518     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11519
11520     // draw counter gadgets
11521     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
11522
11523     // draw selectbox gadgets
11524     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
11525
11526     // draw textbutton gadgets
11527     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11528
11529     // draw drawing area gadgets
11530     DrawGroupElementArea();
11531
11532     // draw text input gadgets
11533     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11534
11535     // draw drawing area gadgets
11536     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11537
11538     draw_footer_line = TRUE;
11539   }
11540   else if (IS_EMPTY_ELEMENT(properties_element))
11541   {
11542     // draw stickybutton gadget
11543     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11544
11545     // draw checkbutton gadgets
11546     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11547     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11548
11549     // draw textbutton gadgets
11550     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11551
11552     // draw drawing area gadgets
11553     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11554
11555     draw_footer_line = TRUE;
11556   }
11557
11558   // draw little footer border line above CE/GE use/save template gadgets
11559   if (draw_footer_line)
11560   {
11561     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
11562     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
11563     int gd_x = gd->x + gd_gi1->border.width / 2;
11564     int gd_y = gd->y + gd_gi1->height - 1;
11565     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
11566
11567     if (tab_color != BLACK_PIXEL)               // black => transparent
11568       FillRectangle(drawto,
11569                     SX + ED_ELEMENT_SETTINGS_X(0),
11570                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
11571                     ED_TAB_BAR_HEIGHT,
11572                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
11573   }
11574 }
11575
11576 static void DrawPropertiesChangeDrawingAreas(void)
11577 {
11578   if (IS_CUSTOM_ELEMENT(properties_element))
11579   {
11580     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
11581     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
11582     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
11583
11584     DrawCustomChangeContentArea();
11585   }
11586
11587   redraw_mask |= REDRAW_FIELD;
11588 }
11589
11590 static void DrawPropertiesChange(void)
11591 {
11592   int i;
11593
11594   // needed to initially set selectbox options for special action options
11595   setSelectboxSpecialActionOptions();
11596
11597   // draw stickybutton gadget
11598   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11599
11600   // draw checkbutton gadgets
11601   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
11602        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
11603     MapCheckbuttonGadget(i);
11604
11605   // draw counter gadgets
11606   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
11607        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
11608     MapCounterButtons(i);
11609
11610   // draw selectbox gadgets
11611   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
11612        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
11613     MapSelectboxGadget(i);
11614
11615   // draw textbutton gadgets
11616   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
11617        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
11618     MapTextbuttonGadget(i);
11619
11620   // draw graphicbutton gadgets
11621   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
11622        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
11623     MapGraphicbuttonGadget(i);
11624
11625   // draw drawing area gadgets
11626   DrawPropertiesChangeDrawingAreas();
11627 }
11628
11629 static void DrawEditorElementAnimation(int x, int y)
11630 {
11631   int graphic = el2img(properties_element);
11632   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
11633                custom_element.ce_value_fixed_initial :
11634                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
11635                custom_element.collect_score_initial : FrameCounter);
11636
11637   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
11638 }
11639
11640 static void DrawEditorElementName(int x, int y, int font_nr)
11641 {
11642   char *element_name = getElementInfoText(properties_element);
11643   int font_width = getFontWidth(font_nr);
11644   int font_height = getFontHeight(font_nr);
11645   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
11646   int max_chars_per_line = max_text_width / font_width;
11647
11648   if (strlen(element_name) <= max_chars_per_line)
11649     DrawTextS(x, y, font_nr, element_name);
11650   else
11651   {
11652     char buffer[max_chars_per_line + 1];
11653     int next_pos = max_chars_per_line;
11654
11655     strncpy(buffer, element_name, max_chars_per_line);
11656     buffer[max_chars_per_line] = '\0';
11657
11658     if (element_name[max_chars_per_line] == ' ')
11659       next_pos++;
11660     else
11661     {
11662       int i;
11663
11664       for (i = max_chars_per_line - 1; i >= 0; i--)
11665         if (buffer[i] == ' ')
11666           break;
11667
11668       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
11669       {
11670         buffer[i] = '\0';
11671         next_pos = i + 1;
11672       }
11673     }
11674
11675     DrawTextS(x, y - font_height / 2, font_nr, buffer);
11676
11677     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
11678     buffer[max_chars_per_line] = '\0';
11679
11680     DrawTextS(x, y + font_height / 2, font_nr, buffer);
11681   }
11682 }
11683
11684 static void DrawPropertiesWindow(void)
11685 {
11686   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
11687   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
11688   int border_size = gd->border_size;
11689   int font_nr = FONT_TEXT_1;
11690   int font_height = getFontHeight(font_nr);
11691   int xoffset = TILEX + element_border + 3 * border_size;
11692   int yoffset = (TILEY - font_height) / 2;
11693   int x1 = editor.settings.element_graphic.x + element_border;
11694   int y1 = editor.settings.element_graphic.y + element_border;
11695   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
11696             editor.settings.element_name.x);
11697   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
11698             editor.settings.element_name.y);
11699   char *text = "Element Settings";
11700   int font2_nr = FONT_TITLE_1;
11701   struct MenuPosInfo *pos = &editor.settings.headline;
11702   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
11703   int sy = SY + pos->y;
11704
11705   stick_element_properties_window = FALSE;
11706
11707   // make sure that previous properties edit mode exists for this element
11708   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
11709       !IS_CUSTOM_ELEMENT(properties_element))
11710     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
11711
11712   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
11713       !IS_PLAYER_ELEMENT(properties_element) &&
11714       !IS_CUSTOM_ELEMENT(properties_element))
11715     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
11716
11717   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
11718       (IS_PLAYER_ELEMENT(properties_element) ||
11719        IS_CUSTOM_ELEMENT(properties_element)))
11720     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
11721
11722   CopyElementPropertiesToEditor(properties_element);
11723
11724   UnmapLevelEditorFieldGadgets();
11725   UnmapLevelEditorToolboxDrawingGadgets();
11726   UnmapLevelEditorToolboxCustomGadgets();
11727
11728   MapLevelEditorToolboxCustomGadgetsIfNeeded();
11729
11730   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11731   ClearField();
11732
11733   DrawText(sx, sy, text, font2_nr);
11734
11735   FrameCounter = 0;     // restart animation frame counter
11736
11737   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
11738   DrawEditorElementAnimation(SX + x1, SY + y1);
11739   DrawEditorElementName(x2, y2, font_nr);
11740
11741   DrawPropertiesTabulatorGadgets();
11742
11743   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
11744     DrawPropertiesInfo();
11745   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
11746     DrawPropertiesChange();
11747   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
11748     DrawPropertiesConfig();
11749 }
11750
11751 static void DrawPaletteWindow(void)
11752 {
11753   int i;
11754
11755   UnmapLevelEditorFieldGadgets();
11756
11757   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11758   ClearField();
11759
11760   // map buttons to select elements
11761   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
11762     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
11763   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
11764   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
11765   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
11766 }
11767
11768 static void UpdateCustomElementGraphicGadgets(void)
11769 {
11770   int i;
11771
11772   InitElementPropertiesGfxElement();
11773
11774   ModifyEditorElementList();
11775   RedrawDrawingElements();
11776
11777   // force redraw of all mapped drawing area gadgets
11778   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
11779   {
11780     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
11781
11782     if (gi->mapped)
11783       MapDrawingArea(i);
11784   }
11785 }
11786
11787 static int getOpenDirectionFromTube(int element)
11788 {
11789   switch (element)
11790   {
11791     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
11792     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
11793     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
11794     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
11795     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
11796     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
11797     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
11798     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
11799     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
11800     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
11801     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
11802   }
11803
11804   return MV_NONE;
11805 }
11806
11807 static int getTubeFromOpenDirection(int direction)
11808 {
11809   switch (direction)
11810   {
11811     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
11812     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
11813     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
11814     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
11815     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
11816     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
11817     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
11818     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
11819     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
11820     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
11821     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
11822
11823     // if only one direction, fall back to simple tube with that direction
11824     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
11825     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
11826     case (MV_UP):                       return EL_TUBE_VERTICAL;
11827     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
11828   }
11829
11830   return EL_EMPTY;
11831 }
11832
11833 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
11834 {
11835   int element_new = getTubeFromOpenDirection(direction);
11836
11837   return (element_new != EL_EMPTY ? element_new : element_old);
11838 }
11839
11840 static int getOpenDirectionFromBelt(int element)
11841 {
11842   int belt_dir = getBeltDirFromBeltElement(element);
11843
11844   return (belt_dir == MV_LEFT ? MV_RIGHT :
11845           belt_dir == MV_RIGHT ? MV_LEFT :
11846           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
11847 }
11848
11849 static int getBeltFromNrAndOpenDirection(int nr, int direction)
11850 {
11851   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
11852                   direction == MV_RIGHT ? MV_LEFT :
11853                   direction == MV_HORIZONTAL ? MV_NONE : direction);
11854
11855   if (direction == MV_NONE)
11856     return EL_EMPTY;
11857
11858   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
11859 }
11860
11861 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
11862                                                  int element_old)
11863 {
11864   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
11865
11866   return (element_new != EL_EMPTY ? element_new : element_old);
11867 }
11868
11869 static int getOpenDirectionFromPool(int element)
11870 {
11871   switch (element)
11872   {
11873     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
11874     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
11875     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
11876     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
11877     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
11878     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
11879   }
11880
11881   return MV_NONE;
11882 }
11883
11884 static int getPoolFromOpenDirection(int direction)
11885 {
11886   switch (direction)
11887   {
11888     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
11889     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
11890     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
11891     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
11892     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
11893     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
11894   }
11895
11896   return EL_EMPTY;
11897 }
11898
11899 static int getPoolFromOpenDirectionExt(int direction, int help_element)
11900 {
11901   int element = getPoolFromOpenDirection(direction);
11902   int help_direction = getOpenDirectionFromPool(help_element);
11903
11904   if (element == EL_EMPTY)
11905   {
11906     int help_direction_vertical = help_direction & MV_VERTICAL;
11907
11908     element = getPoolFromOpenDirection(direction | help_direction_vertical);
11909   }
11910
11911   if (element == EL_EMPTY)
11912   {
11913     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
11914
11915     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
11916   }
11917
11918   return element;
11919 }
11920
11921 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
11922 {
11923   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
11924
11925   return (element_new != EL_EMPTY ? element_new : element_old);
11926 }
11927
11928 static int getOpenDirectionFromPillar(int element)
11929 {
11930   switch (element)
11931   {
11932     case EL_EMC_WALL_1:                 return (MV_DOWN);
11933     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
11934     case EL_EMC_WALL_3:                 return (MV_UP);
11935   }
11936
11937   return MV_NONE;
11938 }
11939
11940 static int getPillarFromOpenDirection(int direction)
11941 {
11942   switch (direction)
11943   {
11944     case (MV_DOWN):                     return EL_EMC_WALL_1;
11945     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
11946     case (MV_UP):                       return EL_EMC_WALL_3;
11947   }
11948
11949   return EL_EMPTY;
11950 }
11951
11952 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
11953 {
11954   int element_new = getPillarFromOpenDirection(direction);
11955
11956   return (element_new != EL_EMPTY ? element_new : element_old);
11957 }
11958
11959 static int getOpenDirectionFromSteel2(int element)
11960 {
11961   switch (element)
11962   {
11963     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
11964     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
11965     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
11966     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
11967     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
11968     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
11969     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
11970     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
11971   }
11972
11973   return MV_NONE;
11974 }
11975
11976 static int getSteel2FromOpenDirection(int direction)
11977 {
11978   switch (direction)
11979   {
11980     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
11981     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
11982     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
11983     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
11984     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
11985     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
11986     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
11987     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
11988   }
11989
11990   return EL_EMPTY;
11991 }
11992
11993 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
11994 {
11995   int element_new = getSteel2FromOpenDirection(direction);
11996
11997   return (element_new != EL_EMPTY ? element_new : element_old);
11998 }
11999
12000 static int getOpenDirectionFromChip(int element)
12001 {
12002   switch (element)
12003   {
12004     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
12005     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
12006     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
12007     case EL_SP_CHIP_TOP:                return (MV_DOWN);
12008     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
12009   }
12010
12011   return MV_NONE;
12012 }
12013
12014 static int getChipFromOpenDirection(int direction)
12015 {
12016   switch (direction)
12017   {
12018     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
12019     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
12020     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
12021     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
12022     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
12023   }
12024
12025   return EL_EMPTY;
12026 }
12027
12028 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
12029 {
12030   int element_new = getChipFromOpenDirection(direction);
12031
12032   return (element_new != EL_EMPTY ? element_new : element_old);
12033 }
12034
12035 static int getClosedTube(int x, int y)
12036 {
12037   struct XY *xy = xy_directions;
12038   int element_old = IntelliDrawBuffer[x][y];
12039   int direction_old = getOpenDirectionFromTube(element_old);
12040   int direction_new = MV_NONE;
12041   int i;
12042
12043   for (i = 0; i < NUM_DIRECTIONS; i++)
12044   {
12045     int xx = x + xy[i].x;
12046     int yy = y + xy[i].y;
12047     int dir = MV_DIR_FROM_BIT(i);
12048     int dir_opposite = MV_DIR_OPPOSITE(dir);
12049
12050     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
12051         (direction_old & dir) &&
12052         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12053       direction_new |= dir;
12054   }
12055
12056   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
12057 }
12058
12059 static int getClosedBelt(int x, int y)
12060 {
12061   struct XY *xy = xy_directions;
12062   int element_old = IntelliDrawBuffer[x][y];
12063   int nr = getBeltNrFromBeltElement(element_old);
12064   int direction_old = getOpenDirectionFromBelt(element_old);
12065   int direction_new = MV_NONE;
12066   int i;
12067
12068   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; 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_BELT(IntelliDrawBuffer[xx][yy]) &&
12076         (direction_old & dir) &&
12077         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12078       direction_new |= dir;
12079   }
12080
12081   return getBeltFromNrAndOpenDirection(nr, direction_new);
12082 }
12083
12084 static int getClosedPool(int x, int y)
12085 {
12086   struct XY *xy = xy_directions;
12087   int element_old = IntelliDrawBuffer[x][y];
12088   int direction_old = getOpenDirectionFromPool(element_old);
12089   int direction_new = MV_NONE;
12090   int i;
12091
12092   for (i = 0; i < NUM_DIRECTIONS; i++)
12093   {
12094     int xx = x + xy[i].x;
12095     int yy = y + xy[i].y;
12096     int dir = MV_DIR_FROM_BIT(i);
12097     int dir_opposite = MV_DIR_OPPOSITE(dir);
12098
12099     if (IN_LEV_FIELD(xx, yy) &&
12100         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
12101         (direction_old & dir) &&
12102         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12103       direction_new |= dir;
12104   }
12105
12106   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
12107 }
12108
12109 static int getClosedPillar(int x, int y)
12110 {
12111   struct XY *xy = xy_directions;
12112   int element_old = IntelliDrawBuffer[x][y];
12113   int direction_old = getOpenDirectionFromPillar(element_old);
12114   int direction_new = MV_NONE;
12115   int i;
12116
12117   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; 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) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
12125         (direction_old & dir) &&
12126         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12127       direction_new |= dir;
12128   }
12129
12130   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
12131 }
12132
12133 static int getClosedSteel2(int x, int y)
12134 {
12135   struct XY *xy = xy_directions;
12136   int element_old = IntelliDrawBuffer[x][y];
12137   int direction_old = getOpenDirectionFromSteel2(element_old);
12138   int direction_new = MV_NONE;
12139   int i;
12140
12141   for (i = 0; i < NUM_DIRECTIONS; i++)
12142   {
12143     int xx = x + xy[i].x;
12144     int yy = y + xy[i].y;
12145     int dir = MV_DIR_FROM_BIT(i);
12146     int dir_opposite = MV_DIR_OPPOSITE(dir);
12147
12148     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
12149         (direction_old & dir) &&
12150         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12151       direction_new |= dir;
12152   }
12153
12154   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
12155 }
12156
12157 static int getClosedChip(int x, int y)
12158 {
12159   struct XY *xy = xy_directions;
12160   int element_old = IntelliDrawBuffer[x][y];
12161   int direction_old = getOpenDirectionFromChip(element_old);
12162   int direction_new = MV_NONE;
12163   int i;
12164
12165   for (i = 0; i < NUM_DIRECTIONS; i++)
12166   {
12167     int xx = x + xy[i].x;
12168     int yy = y + xy[i].y;
12169     int dir = MV_DIR_FROM_BIT(i);
12170     int dir_opposite = MV_DIR_OPPOSITE(dir);
12171
12172     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
12173         (direction_old & dir) &&
12174         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12175       direction_new |= dir;
12176   }
12177
12178   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
12179 }
12180
12181 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
12182                                 boolean change_level)
12183 {
12184   int sx = x - level_xpos;
12185   int sy = y - level_ypos;
12186   int old_element = Tile[x][y];
12187   int new_element = element;
12188   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
12189   boolean draw_masked = FALSE;
12190
12191   if (IS_MM_WALL_EDITOR(element))
12192   {
12193     element = map_mm_wall_element_editor(element) | new_bitmask;
12194
12195     if (IS_MM_WALL(old_element))
12196       element |= MM_WALL_BITS(old_element);
12197
12198     if (!change_level)
12199       draw_masked = TRUE;
12200   }
12201   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
12202   {
12203     int element_changed = old_element & ~new_bitmask;
12204
12205     if (MM_WALL_BITS(element_changed) != 0)
12206       element = element_changed;
12207   }
12208
12209   IntelliDrawBuffer[x][y] = element;
12210
12211   if (change_level)
12212     Tile[x][y] = element;
12213
12214   if (IN_ED_FIELD(sx, sy))
12215   {
12216     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
12217       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
12218     else if (draw_masked)
12219       DrawEditorElementThruMask(sx, sy, element);
12220     else
12221       DrawEditorElement(sx, sy, element);
12222   }
12223 }
12224
12225 static void SetElementSimple(int x, int y, int element, boolean change_level)
12226 {
12227   SetElementSimpleExt(x, y, 0, 0, element, change_level);
12228 }
12229
12230 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
12231                                            int x2, int y2, int *element2,
12232                                            int (*close_function)(int, int),
12233                                            boolean change_level)
12234 {
12235   // set neighbour elements to newly determined connections
12236   SetElementSimple(x1, y1, *element1, change_level);
12237   SetElementSimple(x2, y2, *element2, change_level);
12238
12239   // remove all open connections of neighbour elements
12240   *element1 = close_function(x1, y1);
12241   *element2 = close_function(x2, y2);
12242
12243   // set neighbour elements to new, minimized connections
12244   SetElementSimple(x1, y1, *element1, change_level);
12245   SetElementSimple(x2, y2, *element2, change_level);
12246 }
12247
12248 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
12249                                   boolean change_level, int button)
12250 {
12251   struct XY *xy = xy_directions;
12252   static int last_x = -1;
12253   static int last_y = -1;
12254
12255   if (new_element == EL_UNDEFINED)
12256   {
12257     last_x = -1;
12258     last_y = -1;
12259
12260     return;
12261   }
12262
12263   int old_element = IntelliDrawBuffer[x][y];
12264
12265   if (IS_TUBE(new_element))
12266   {
12267     int last_element_new = EL_UNDEFINED;
12268     int direction = MV_NONE;
12269     int i;
12270
12271     // if old element is of same kind, keep all existing directions
12272     if (IS_TUBE(old_element))
12273       direction |= getOpenDirectionFromTube(old_element);
12274
12275     for (i = 0; i < NUM_DIRECTIONS; i++)
12276     {
12277       int xx = x + xy[i].x;
12278       int yy = y + xy[i].y;
12279
12280       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12281           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
12282       {
12283         int dir = MV_DIR_FROM_BIT(i);
12284         int dir_opposite = MV_DIR_OPPOSITE(dir);
12285         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12286         int last_direction_old = getOpenDirectionFromTube(last_element_old);
12287         int last_direction_new = last_direction_old | dir_opposite;
12288
12289         last_element_new = getTubeFromOpenDirection(last_direction_new);
12290
12291         direction |= dir;
12292       }
12293     }
12294
12295     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
12296
12297     if (last_element_new != EL_UNDEFINED)
12298       MergeAndCloseNeighbourElements(x, y, &new_element,
12299                                      last_x, last_y, &last_element_new,
12300                                      getClosedTube, change_level);
12301   }
12302   else if (IS_BELT(new_element))
12303   {
12304     int belt_nr = getBeltNrFromBeltElement(new_element);
12305     int last_element_new = EL_UNDEFINED;
12306     int direction = MV_NONE;
12307     int i;
12308
12309     // if old element is of same kind, keep all existing directions
12310     if (IS_BELT(old_element))
12311       direction |= getOpenDirectionFromBelt(old_element);
12312
12313     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12314     {
12315       int xx = x + xy[i].x;
12316       int yy = y + xy[i].y;
12317
12318       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12319           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
12320       {
12321         int dir = MV_DIR_FROM_BIT(i);
12322         int dir_opposite = MV_DIR_OPPOSITE(dir);
12323         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12324         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
12325         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
12326         int last_direction_new = last_direction_old | dir_opposite;
12327
12328         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
12329                                                          last_direction_new);
12330         direction |= dir;
12331       }
12332     }
12333
12334     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
12335                                                         new_element);
12336     if (last_element_new != EL_UNDEFINED)
12337       MergeAndCloseNeighbourElements(x, y, &new_element,
12338                                      last_x, last_y, &last_element_new,
12339                                      getClosedBelt, change_level);
12340   }
12341   else if (IS_ACID_POOL_OR_ACID(new_element))
12342   {
12343     int last_element_new = EL_UNDEFINED;
12344     int direction = MV_NONE;
12345     int i;
12346
12347     // if old element is of same kind, keep all existing directions
12348     if (IS_ACID_POOL_OR_ACID(old_element))
12349       direction |= getOpenDirectionFromPool(old_element);
12350
12351     for (i = 0; i < NUM_DIRECTIONS; i++)
12352     {
12353       int xx = x + xy[i].x;
12354       int yy = y + xy[i].y;
12355
12356       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12357           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
12358       {
12359         int dir = MV_DIR_FROM_BIT(i);
12360         int dir_opposite = MV_DIR_OPPOSITE(dir);
12361         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12362         int last_direction_old = getOpenDirectionFromPool(last_element_old);
12363         int last_direction_new = last_direction_old | dir_opposite;
12364
12365         last_element_new = getPoolFromOpenDirection(last_direction_new);
12366
12367         direction |= dir;
12368       }
12369     }
12370
12371     // special corrections needed for intuitively correct acid pool drawing
12372     if (last_element_new == EL_EMPTY)
12373       last_element_new = new_element;
12374     else if (last_element_new != EL_UNDEFINED)
12375       new_element = last_element_new;
12376
12377     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
12378
12379     if (last_element_new != EL_UNDEFINED)
12380       MergeAndCloseNeighbourElements(x, y, &new_element,
12381                                      last_x, last_y, &last_element_new,
12382                                      getClosedPool, change_level);
12383   }
12384   else if (IS_EMC_PILLAR(new_element))
12385   {
12386     int last_element_new = EL_UNDEFINED;
12387     int direction = MV_NONE;
12388     int i;
12389
12390     // if old element is of same kind, keep all existing directions
12391     if (IS_EMC_PILLAR(old_element))
12392       direction |= getOpenDirectionFromPillar(old_element);
12393
12394     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12395     {
12396       int xx = x + xy[i].x;
12397       int yy = y + xy[i].y;
12398
12399       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12400           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
12401       {
12402         int dir = MV_DIR_FROM_BIT(i);
12403         int dir_opposite = MV_DIR_OPPOSITE(dir);
12404         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12405         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
12406         int last_direction_new = last_direction_old | dir_opposite;
12407
12408         last_element_new = getPillarFromOpenDirection(last_direction_new);
12409
12410         direction |= dir;
12411       }
12412     }
12413
12414     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
12415
12416     if (last_element_new != EL_UNDEFINED)
12417       MergeAndCloseNeighbourElements(x, y, &new_element,
12418                                      last_x, last_y, &last_element_new,
12419                                      getClosedPillar, change_level);
12420   }
12421   else if (IS_DC_STEELWALL_2(new_element))
12422   {
12423     int last_element_new = EL_UNDEFINED;
12424     int direction = MV_NONE;
12425     int i;
12426
12427     // if old element is of same kind, keep all existing directions
12428     if (IS_DC_STEELWALL_2(old_element))
12429       direction |= getOpenDirectionFromSteel2(old_element);
12430
12431     for (i = 0; i < NUM_DIRECTIONS; i++)
12432     {
12433       int xx = x + xy[i].x;
12434       int yy = y + xy[i].y;
12435
12436       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12437           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
12438       {
12439         int dir = MV_DIR_FROM_BIT(i);
12440         int dir_opposite = MV_DIR_OPPOSITE(dir);
12441         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12442         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
12443         int last_direction_new = last_direction_old | dir_opposite;
12444
12445         last_element_new = getSteel2FromOpenDirection(last_direction_new);
12446
12447         direction |= dir;
12448       }
12449     }
12450
12451     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
12452
12453     if (last_element_new != EL_UNDEFINED)
12454       MergeAndCloseNeighbourElements(x, y, &new_element,
12455                                      last_x, last_y, &last_element_new,
12456                                      getClosedSteel2, change_level);
12457   }
12458   else if (IS_SP_CHIP(new_element))
12459   {
12460     int last_element_new = EL_UNDEFINED;
12461     int direction = MV_NONE;
12462     int i;
12463
12464     // (do not keep existing directions, regardless of kind of old element)
12465
12466     for (i = 0; i < NUM_DIRECTIONS; i++)
12467     {
12468       int xx = x + xy[i].x;
12469       int yy = y + xy[i].y;
12470
12471       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12472           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
12473       {
12474         int dir = MV_DIR_FROM_BIT(i);
12475         int dir_opposite = MV_DIR_OPPOSITE(dir);
12476         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12477         int last_direction_old = getOpenDirectionFromChip(last_element_old);
12478         int last_direction_new = last_direction_old | dir_opposite;
12479
12480         if (last_direction_old == MV_NONE)
12481         {
12482           last_element_new = getChipFromOpenDirection(last_direction_new);
12483           direction |= dir;
12484         }
12485         else if (last_direction_old & (dir | dir_opposite))
12486         {
12487           direction |= MV_DIR_OPPOSITE(last_direction_old);
12488         }
12489         else
12490         {
12491           direction |= MV_DIR_OPPOSITE(dir);
12492         }
12493       }
12494     }
12495
12496     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
12497
12498     if (last_element_new != EL_UNDEFINED)
12499       MergeAndCloseNeighbourElements(x, y, &new_element,
12500                                      last_x, last_y, &last_element_new,
12501                                      getClosedChip, change_level);
12502   }
12503   else if (IS_SP_HARDWARE_BASE(new_element))
12504   {
12505     int nr = GetSimpleRandom(6);
12506
12507     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
12508                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
12509                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
12510                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
12511                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
12512   }
12513   else if (new_element == EL_SP_HARDWARE_GREEN ||
12514            new_element == EL_SP_HARDWARE_BLUE ||
12515            new_element == EL_SP_HARDWARE_RED)
12516   {
12517     int nr = GetSimpleRandom(3);
12518
12519     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
12520                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
12521   }
12522   else if (IS_GROUP_ELEMENT(new_element))
12523   {
12524     boolean connected_drawing = FALSE;
12525     int i;
12526
12527     for (i = 0; i < NUM_DIRECTIONS; i++)
12528     {
12529       int xx = x + xy[i].x;
12530       int yy = y + xy[i].y;
12531
12532       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12533           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
12534         connected_drawing = TRUE;
12535     }
12536
12537     if (!connected_drawing)
12538       ResolveGroupElement(new_element);
12539
12540     new_element = GetElementFromGroupElement(new_element);
12541   }
12542   else if (IS_BELT_SWITCH(old_element))
12543   {
12544     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
12545     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
12546
12547     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
12548                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
12549
12550     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
12551   }
12552   else
12553   {
12554     static int swappable_elements[][2] =
12555     {
12556       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
12557       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
12558       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
12559       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
12560       { EL_EMERALD,                     EL_WALL_EMERALD                 },
12561       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
12562       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
12563       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
12564       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
12565       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
12566       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
12567       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
12568       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
12569       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
12570       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
12571       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
12572       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
12573       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
12574       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
12575       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
12576       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
12577       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
12578       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
12579       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
12580       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
12581       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
12582       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
12583       { EL_PEARL,                       EL_WALL_PEARL                   },
12584       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
12585       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
12586       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
12587       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
12588       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
12589       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
12590       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
12591       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
12592       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
12593       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
12594       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
12595       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
12596       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
12597       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
12598       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
12599       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
12600
12601       { -1,                             -1                              },
12602     };
12603     static int rotatable_elements_4[][4] =
12604     {
12605       {
12606         EL_BUG_UP,
12607         EL_BUG_RIGHT,
12608         EL_BUG_DOWN,
12609         EL_BUG_LEFT
12610       },
12611       {
12612         EL_SPACESHIP_UP,
12613         EL_SPACESHIP_RIGHT,
12614         EL_SPACESHIP_DOWN,
12615         EL_SPACESHIP_LEFT
12616       },
12617       {
12618         EL_BD_BUTTERFLY_UP,
12619         EL_BD_BUTTERFLY_RIGHT,
12620         EL_BD_BUTTERFLY_DOWN,
12621         EL_BD_BUTTERFLY_LEFT
12622       },
12623       {
12624         EL_BD_FIREFLY_UP,
12625         EL_BD_FIREFLY_RIGHT,
12626         EL_BD_FIREFLY_DOWN,
12627         EL_BD_FIREFLY_LEFT
12628       },
12629       {
12630         EL_PACMAN_UP,
12631         EL_PACMAN_RIGHT,
12632         EL_PACMAN_DOWN,
12633         EL_PACMAN_LEFT
12634       },
12635       {
12636         EL_YAMYAM_UP,
12637         EL_YAMYAM_RIGHT,
12638         EL_YAMYAM_DOWN,
12639         EL_YAMYAM_LEFT
12640       },
12641       {
12642         EL_ARROW_UP,
12643         EL_ARROW_RIGHT,
12644         EL_ARROW_DOWN,
12645         EL_ARROW_LEFT
12646       },
12647       {
12648         EL_SP_PORT_UP,
12649         EL_SP_PORT_RIGHT,
12650         EL_SP_PORT_DOWN,
12651         EL_SP_PORT_LEFT
12652       },
12653       {
12654         EL_SP_GRAVITY_PORT_UP,
12655         EL_SP_GRAVITY_PORT_RIGHT,
12656         EL_SP_GRAVITY_PORT_DOWN,
12657         EL_SP_GRAVITY_PORT_LEFT
12658       },
12659       {
12660         EL_SP_GRAVITY_ON_PORT_UP,
12661         EL_SP_GRAVITY_ON_PORT_RIGHT,
12662         EL_SP_GRAVITY_ON_PORT_DOWN,
12663         EL_SP_GRAVITY_ON_PORT_LEFT
12664       },
12665       {
12666         EL_SP_GRAVITY_OFF_PORT_UP,
12667         EL_SP_GRAVITY_OFF_PORT_RIGHT,
12668         EL_SP_GRAVITY_OFF_PORT_DOWN,
12669         EL_SP_GRAVITY_OFF_PORT_LEFT
12670       },
12671       {
12672         EL_MOLE_UP,
12673         EL_MOLE_RIGHT,
12674         EL_MOLE_DOWN,
12675         EL_MOLE_LEFT
12676       },
12677       {
12678         EL_BALLOON_SWITCH_UP,
12679         EL_BALLOON_SWITCH_RIGHT,
12680         EL_BALLOON_SWITCH_DOWN,
12681         EL_BALLOON_SWITCH_LEFT
12682       },
12683       {
12684         EL_MM_MCDUFFIN_UP,
12685         EL_MM_MCDUFFIN_RIGHT,
12686         EL_MM_MCDUFFIN_DOWN,
12687         EL_MM_MCDUFFIN_LEFT
12688       },
12689       {
12690         EL_MM_MIRROR_FIXED_1,
12691         EL_MM_MIRROR_FIXED_4,
12692         EL_MM_MIRROR_FIXED_3,
12693         EL_MM_MIRROR_FIXED_2
12694       },
12695       {
12696         EL_MM_STEEL_GRID_FIXED_1,
12697         EL_MM_STEEL_GRID_FIXED_4,
12698         EL_MM_STEEL_GRID_FIXED_2,
12699         EL_MM_STEEL_GRID_FIXED_3
12700       },
12701       {
12702         EL_MM_WOODEN_GRID_FIXED_1,
12703         EL_MM_WOODEN_GRID_FIXED_4,
12704         EL_MM_WOODEN_GRID_FIXED_2,
12705         EL_MM_WOODEN_GRID_FIXED_3
12706       },
12707       {
12708         EL_MM_POLARIZER_CROSS_1,
12709         EL_MM_POLARIZER_CROSS_4,
12710         EL_MM_POLARIZER_CROSS_3,
12711         EL_MM_POLARIZER_CROSS_2
12712       },
12713       {
12714         EL_MM_PACMAN_UP,
12715         EL_MM_PACMAN_RIGHT,
12716         EL_MM_PACMAN_DOWN,
12717         EL_MM_PACMAN_LEFT
12718       },
12719       {
12720         EL_DF_LASER_UP,
12721         EL_DF_LASER_RIGHT,
12722         EL_DF_LASER_DOWN,
12723         EL_DF_LASER_LEFT
12724       },
12725       {
12726         EL_DF_RECEIVER_UP,
12727         EL_DF_RECEIVER_RIGHT,
12728         EL_DF_RECEIVER_DOWN,
12729         EL_DF_RECEIVER_LEFT
12730       },
12731       {
12732         EL_DF_SLOPE_1,
12733         EL_DF_SLOPE_4,
12734         EL_DF_SLOPE_3,
12735         EL_DF_SLOPE_2
12736       },
12737
12738       {
12739         -1,
12740       },
12741     };
12742     static int rotatable_elements_8[][8] =
12743     {
12744       {
12745         EL_DF_STEEL_GRID_FIXED_1,
12746         EL_DF_STEEL_GRID_FIXED_8,
12747         EL_DF_STEEL_GRID_FIXED_7,
12748         EL_DF_STEEL_GRID_FIXED_6,
12749         EL_DF_STEEL_GRID_FIXED_5,
12750         EL_DF_STEEL_GRID_FIXED_4,
12751         EL_DF_STEEL_GRID_FIXED_3,
12752         EL_DF_STEEL_GRID_FIXED_2
12753       },
12754       {
12755         EL_DF_WOODEN_GRID_FIXED_1,
12756         EL_DF_WOODEN_GRID_FIXED_8,
12757         EL_DF_WOODEN_GRID_FIXED_7,
12758         EL_DF_WOODEN_GRID_FIXED_6,
12759         EL_DF_WOODEN_GRID_FIXED_5,
12760         EL_DF_WOODEN_GRID_FIXED_4,
12761         EL_DF_WOODEN_GRID_FIXED_3,
12762         EL_DF_WOODEN_GRID_FIXED_2
12763       },
12764       {
12765         EL_DF_STEEL_GRID_ROTATING_1,
12766         EL_DF_STEEL_GRID_ROTATING_8,
12767         EL_DF_STEEL_GRID_ROTATING_7,
12768         EL_DF_STEEL_GRID_ROTATING_6,
12769         EL_DF_STEEL_GRID_ROTATING_5,
12770         EL_DF_STEEL_GRID_ROTATING_4,
12771         EL_DF_STEEL_GRID_ROTATING_3,
12772         EL_DF_STEEL_GRID_ROTATING_2
12773       },
12774       {
12775         EL_DF_WOODEN_GRID_ROTATING_1,
12776         EL_DF_WOODEN_GRID_ROTATING_8,
12777         EL_DF_WOODEN_GRID_ROTATING_7,
12778         EL_DF_WOODEN_GRID_ROTATING_6,
12779         EL_DF_WOODEN_GRID_ROTATING_5,
12780         EL_DF_WOODEN_GRID_ROTATING_4,
12781         EL_DF_WOODEN_GRID_ROTATING_3,
12782         EL_DF_WOODEN_GRID_ROTATING_2
12783       },
12784
12785       {
12786         -1,
12787       },
12788     };
12789     static int rotatable_elements_16[][16] =
12790     {
12791       {
12792         EL_MM_MIRROR_1,
12793         EL_MM_MIRROR_16,
12794         EL_MM_MIRROR_15,
12795         EL_MM_MIRROR_14,
12796         EL_MM_MIRROR_13,
12797         EL_MM_MIRROR_12,
12798         EL_MM_MIRROR_11,
12799         EL_MM_MIRROR_10,
12800         EL_MM_MIRROR_9,
12801         EL_MM_MIRROR_8,
12802         EL_MM_MIRROR_7,
12803         EL_MM_MIRROR_6,
12804         EL_MM_MIRROR_5,
12805         EL_MM_MIRROR_4,
12806         EL_MM_MIRROR_3,
12807         EL_MM_MIRROR_2
12808       },
12809       {
12810         EL_MM_TELEPORTER_5,
12811         EL_MM_TELEPORTER_4,
12812         EL_MM_TELEPORTER_3,
12813         EL_MM_TELEPORTER_2,
12814         EL_MM_TELEPORTER_1,
12815         EL_MM_TELEPORTER_16,
12816         EL_MM_TELEPORTER_15,
12817         EL_MM_TELEPORTER_14,
12818         EL_MM_TELEPORTER_13,
12819         EL_MM_TELEPORTER_12,
12820         EL_MM_TELEPORTER_11,
12821         EL_MM_TELEPORTER_10,
12822         EL_MM_TELEPORTER_9,
12823         EL_MM_TELEPORTER_8,
12824         EL_MM_TELEPORTER_7,
12825         EL_MM_TELEPORTER_6
12826       },
12827       {
12828         EL_MM_TELEPORTER_RED_5,
12829         EL_MM_TELEPORTER_RED_4,
12830         EL_MM_TELEPORTER_RED_3,
12831         EL_MM_TELEPORTER_RED_2,
12832         EL_MM_TELEPORTER_RED_1,
12833         EL_MM_TELEPORTER_RED_16,
12834         EL_MM_TELEPORTER_RED_15,
12835         EL_MM_TELEPORTER_RED_14,
12836         EL_MM_TELEPORTER_RED_13,
12837         EL_MM_TELEPORTER_RED_12,
12838         EL_MM_TELEPORTER_RED_11,
12839         EL_MM_TELEPORTER_RED_10,
12840         EL_MM_TELEPORTER_RED_9,
12841         EL_MM_TELEPORTER_RED_8,
12842         EL_MM_TELEPORTER_RED_7,
12843         EL_MM_TELEPORTER_RED_6
12844       },
12845       {
12846         EL_MM_TELEPORTER_YELLOW_5,
12847         EL_MM_TELEPORTER_YELLOW_4,
12848         EL_MM_TELEPORTER_YELLOW_3,
12849         EL_MM_TELEPORTER_YELLOW_2,
12850         EL_MM_TELEPORTER_YELLOW_1,
12851         EL_MM_TELEPORTER_YELLOW_16,
12852         EL_MM_TELEPORTER_YELLOW_15,
12853         EL_MM_TELEPORTER_YELLOW_14,
12854         EL_MM_TELEPORTER_YELLOW_13,
12855         EL_MM_TELEPORTER_YELLOW_12,
12856         EL_MM_TELEPORTER_YELLOW_11,
12857         EL_MM_TELEPORTER_YELLOW_10,
12858         EL_MM_TELEPORTER_YELLOW_9,
12859         EL_MM_TELEPORTER_YELLOW_8,
12860         EL_MM_TELEPORTER_YELLOW_7,
12861         EL_MM_TELEPORTER_YELLOW_6
12862       },
12863       {
12864         EL_MM_TELEPORTER_GREEN_5,
12865         EL_MM_TELEPORTER_GREEN_4,
12866         EL_MM_TELEPORTER_GREEN_3,
12867         EL_MM_TELEPORTER_GREEN_2,
12868         EL_MM_TELEPORTER_GREEN_1,
12869         EL_MM_TELEPORTER_GREEN_16,
12870         EL_MM_TELEPORTER_GREEN_15,
12871         EL_MM_TELEPORTER_GREEN_14,
12872         EL_MM_TELEPORTER_GREEN_13,
12873         EL_MM_TELEPORTER_GREEN_12,
12874         EL_MM_TELEPORTER_GREEN_11,
12875         EL_MM_TELEPORTER_GREEN_10,
12876         EL_MM_TELEPORTER_GREEN_9,
12877         EL_MM_TELEPORTER_GREEN_8,
12878         EL_MM_TELEPORTER_GREEN_7,
12879         EL_MM_TELEPORTER_GREEN_6
12880       },
12881       {
12882         EL_MM_TELEPORTER_BLUE_5,
12883         EL_MM_TELEPORTER_BLUE_4,
12884         EL_MM_TELEPORTER_BLUE_3,
12885         EL_MM_TELEPORTER_BLUE_2,
12886         EL_MM_TELEPORTER_BLUE_1,
12887         EL_MM_TELEPORTER_BLUE_16,
12888         EL_MM_TELEPORTER_BLUE_15,
12889         EL_MM_TELEPORTER_BLUE_14,
12890         EL_MM_TELEPORTER_BLUE_13,
12891         EL_MM_TELEPORTER_BLUE_12,
12892         EL_MM_TELEPORTER_BLUE_11,
12893         EL_MM_TELEPORTER_BLUE_10,
12894         EL_MM_TELEPORTER_BLUE_9,
12895         EL_MM_TELEPORTER_BLUE_8,
12896         EL_MM_TELEPORTER_BLUE_7,
12897         EL_MM_TELEPORTER_BLUE_6
12898       },
12899       {
12900         EL_MM_POLARIZER_1,
12901         EL_MM_POLARIZER_16,
12902         EL_MM_POLARIZER_15,
12903         EL_MM_POLARIZER_14,
12904         EL_MM_POLARIZER_13,
12905         EL_MM_POLARIZER_12,
12906         EL_MM_POLARIZER_11,
12907         EL_MM_POLARIZER_10,
12908         EL_MM_POLARIZER_9,
12909         EL_MM_POLARIZER_8,
12910         EL_MM_POLARIZER_7,
12911         EL_MM_POLARIZER_6,
12912         EL_MM_POLARIZER_5,
12913         EL_MM_POLARIZER_4,
12914         EL_MM_POLARIZER_3,
12915         EL_MM_POLARIZER_2
12916       },
12917       {
12918         EL_DF_MIRROR_1,
12919         EL_DF_MIRROR_16,
12920         EL_DF_MIRROR_15,
12921         EL_DF_MIRROR_14,
12922         EL_DF_MIRROR_13,
12923         EL_DF_MIRROR_12,
12924         EL_DF_MIRROR_11,
12925         EL_DF_MIRROR_10,
12926         EL_DF_MIRROR_9,
12927         EL_DF_MIRROR_8,
12928         EL_DF_MIRROR_7,
12929         EL_DF_MIRROR_6,
12930         EL_DF_MIRROR_5,
12931         EL_DF_MIRROR_4,
12932         EL_DF_MIRROR_3,
12933         EL_DF_MIRROR_2
12934       },
12935       {
12936         EL_DF_MIRROR_ROTATING_1,
12937         EL_DF_MIRROR_ROTATING_16,
12938         EL_DF_MIRROR_ROTATING_15,
12939         EL_DF_MIRROR_ROTATING_14,
12940         EL_DF_MIRROR_ROTATING_13,
12941         EL_DF_MIRROR_ROTATING_12,
12942         EL_DF_MIRROR_ROTATING_11,
12943         EL_DF_MIRROR_ROTATING_10,
12944         EL_DF_MIRROR_ROTATING_9,
12945         EL_DF_MIRROR_ROTATING_8,
12946         EL_DF_MIRROR_ROTATING_7,
12947         EL_DF_MIRROR_ROTATING_6,
12948         EL_DF_MIRROR_ROTATING_5,
12949         EL_DF_MIRROR_ROTATING_4,
12950         EL_DF_MIRROR_ROTATING_3,
12951         EL_DF_MIRROR_ROTATING_2
12952       },
12953       {
12954         EL_DF_MIRROR_FIXED_1,
12955         EL_DF_MIRROR_FIXED_16,
12956         EL_DF_MIRROR_FIXED_15,
12957         EL_DF_MIRROR_FIXED_14,
12958         EL_DF_MIRROR_FIXED_13,
12959         EL_DF_MIRROR_FIXED_12,
12960         EL_DF_MIRROR_FIXED_11,
12961         EL_DF_MIRROR_FIXED_10,
12962         EL_DF_MIRROR_FIXED_9,
12963         EL_DF_MIRROR_FIXED_8,
12964         EL_DF_MIRROR_FIXED_7,
12965         EL_DF_MIRROR_FIXED_6,
12966         EL_DF_MIRROR_FIXED_5,
12967         EL_DF_MIRROR_FIXED_4,
12968         EL_DF_MIRROR_FIXED_3,
12969         EL_DF_MIRROR_FIXED_2
12970       },
12971
12972       {
12973         -1,
12974       },
12975     };
12976     int i, j;
12977
12978     for (i = 0; swappable_elements[i][0] != -1; i++)
12979     {
12980       int element1 = swappable_elements[i][0];
12981       int element2 = swappable_elements[i][1];
12982
12983       if (old_element == element1 || old_element == element2)
12984         new_element = (old_element == element1 ? element2 : element1);
12985     }
12986
12987     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
12988     {
12989       for (j = 0; j < 4; j++)
12990       {
12991         int element = rotatable_elements_4[i][j];
12992
12993         if (old_element == element)
12994           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
12995                          button == 2 ? rotatable_elements_4[i][0]           :
12996                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
12997                          old_element);
12998       }
12999     }
13000
13001     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
13002     {
13003       for (j = 0; j < 8; j++)
13004       {
13005         int element = rotatable_elements_8[i][j];
13006
13007         if (old_element == element)
13008           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
13009                          button == 2 ? rotatable_elements_8[i][0]           :
13010                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
13011                          old_element);
13012       }
13013     }
13014
13015     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
13016     {
13017       for (j = 0; j < 16; j++)
13018       {
13019         int element = rotatable_elements_16[i][j];
13020
13021         if (old_element == element)
13022           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
13023                          button == 2 ? rotatable_elements_16[i][0]             :
13024                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
13025                          old_element);
13026       }
13027     }
13028
13029     if (old_element != new_element)
13030     {
13031       int max_infotext_len = getMaxInfoTextLength();
13032       char infotext[MAX_OUTPUT_LINESIZE + 1];
13033
13034       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
13035       infotext[max_infotext_len] = '\0';
13036
13037       ClearEditorGadgetInfoText();
13038
13039       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
13040                 infotext);
13041     }
13042   }
13043
13044   if (IS_MM_WALL_EDITOR(new_element))
13045     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
13046   else
13047     SetElementSimple(x, y, new_element, change_level);
13048
13049   last_x = x;
13050   last_y = y;
13051 }
13052
13053 static void ResetIntelliDraw(void)
13054 {
13055   int x, y;
13056
13057   for (x = 0; x < lev_fieldx; x++)
13058     for (y = 0; y < lev_fieldy; y++)
13059       IntelliDrawBuffer[x][y] = Tile[x][y];
13060
13061   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
13062 }
13063
13064 static boolean draw_mode_hires = FALSE;
13065
13066 static boolean isHiresTileElement(int element)
13067 {
13068   return (IS_MM_WALL(element)        || element == EL_EMPTY);
13069 }
13070
13071 static boolean isHiresDrawElement(int element)
13072 {
13073   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
13074 }
13075
13076 static int numHiresTiles(int element)
13077 {
13078   if (IS_MM_WALL(element))
13079     return get_number_of_bits(MM_WALL_BITS(element));
13080
13081   return 1;
13082 }
13083
13084 static void SetDrawModeHiRes(int element)
13085 {
13086   draw_mode_hires =
13087     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13088      isHiresDrawElement(element));
13089 }
13090
13091 static boolean getDrawModeHiRes(void)
13092 {
13093   return draw_mode_hires;
13094 }
13095
13096 static int getLoResScreenPos(int pos)
13097 {
13098   return (getDrawModeHiRes() ? pos / 2 : pos);
13099 }
13100
13101 static int getLoResScreenMod(int pos)
13102 {
13103   return (getDrawModeHiRes() ? pos % 2 : 0);
13104 }
13105
13106 static void SetElementExt(int x, int y, int dx, int dy, int element,
13107                           boolean change_level, int button)
13108 {
13109   if (element < 0)
13110     SetElementSimple(x, y, Tile[x][y], change_level);
13111   else if (GetKeyModState() & KMOD_Shift)
13112     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
13113   else
13114     SetElementSimpleExt(x, y, dx, dy, element, change_level);
13115 }
13116
13117 static void SetElement(int x, int y, int element)
13118 {
13119   SetElementExt(x, y, 0, 0, element, TRUE, -1);
13120 }
13121
13122 static void SetElementButton(int x, int y, int dx, int dy, int element,
13123                              int button)
13124 {
13125   SetElementExt(x, y, dx, dy, element, TRUE, button);
13126 }
13127
13128 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
13129 {
13130   int lx = getLoResScreenPos(sx2) + level_xpos;
13131   int ly = getLoResScreenPos(sy2) + level_ypos;
13132   int dx = getLoResScreenMod(sx2);
13133   int dy = getLoResScreenMod(sy2);
13134
13135   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
13136 }
13137
13138 static void SetLevelElementHiRes(int lx2, int ly2, int element)
13139 {
13140   int lx = lx2 / 2;
13141   int ly = ly2 / 2;
13142   int dx = lx2 % 2;
13143   int dy = ly2 % 2;
13144
13145   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
13146 }
13147
13148 static int getLevelElementHiRes(int lx2, int ly2)
13149 {
13150   int lx = lx2 / 2;
13151   int ly = ly2 / 2;
13152   int dx = lx2 % 2;
13153   int dy = ly2 % 2;
13154   int element = Tile[lx][ly];
13155   unsigned int bitmask = (dx + 1) << (dy * 2);
13156
13157   if (IS_MM_WALL(element))
13158   {
13159     if (element & bitmask)
13160       return map_mm_wall_element(element);
13161     else
13162       return EL_EMPTY;
13163   }
13164
13165   return element;
13166 }
13167
13168 static void DrawLineElement(int x, int y, int element, boolean change_level)
13169 {
13170   SetElementHiRes(x, y, element, change_level);
13171 }
13172
13173 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
13174                      int element, boolean change_level)
13175 {
13176   int xsize = ABS(to_x - from_x);
13177   int ysize = ABS(to_y - from_y);
13178   int dx = (to_x < from_x ? -1 : +1);
13179   int dy = (to_y < from_y ? -1 : +1);
13180   int i;
13181
13182   if (from_y == to_y)                   // horizontal line
13183   {
13184     for (i = 0; i <= xsize; i++)
13185       DrawLineElement(from_x + i * dx, from_y, element, change_level);
13186   }
13187   else if (from_x == to_x)              // vertical line
13188   {
13189     for (i = 0; i <= ysize; i++)
13190       DrawLineElement(from_x, from_y + i * dy, element, change_level);
13191   }
13192   else                                  // diagonal line
13193   {
13194     if (ysize < xsize)                  // a < 1
13195     {
13196       float a = (float)ysize / (float)xsize;
13197
13198       for (i = 0; i <= xsize; i++)
13199       {
13200         int x = dx * i;
13201         int y = dy * (int)(a * i + 0.5);
13202
13203         DrawLineElement(from_x + x, from_y + y, element, change_level);
13204       }
13205     }
13206     else                                // a >= 1
13207     {
13208       float a = (float)xsize / (float)ysize;
13209
13210       for (i = 0; i <= ysize; i++)
13211       {
13212         int x = dx * (int)(a * i + 0.5);
13213         int y = dy * i;
13214
13215         DrawLineElement(from_x + x, from_y + y, element, change_level);
13216       }
13217     }
13218   }
13219 }
13220
13221 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
13222                     int element, boolean change_level)
13223 {
13224   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
13225   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
13226   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
13227   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
13228 }
13229
13230 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
13231                           int element, boolean change_level)
13232 {
13233   int y;
13234
13235   if (from_y > to_y)
13236     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
13237
13238   for (y = from_y; y <= to_y; y++)
13239     DrawLine(from_x, y, to_x, y, element, change_level);
13240 }
13241
13242 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
13243                        int element, boolean change_level)
13244 {
13245   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
13246   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
13247   int len_x = ABS(to_x - from_x);
13248   int len_y = ABS(to_y - from_y);
13249   int radius, x, y;
13250
13251   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
13252
13253   // not optimal (some points get drawn twice) but simple,
13254   // and fast enough for the few points we are drawing
13255
13256   for (x = 0; x <= radius; x++)
13257   {
13258     int sx, sy, sx2, sy2, lx, ly;
13259
13260     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
13261
13262     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13263     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13264     sx = getLoResScreenPos(sx2);
13265     sy = getLoResScreenPos(sy2);
13266     lx = sx + level_xpos;
13267     ly = sy + level_ypos;
13268
13269     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13270       DrawLineElement(sx2, sy2, element, change_level);
13271   }
13272
13273   for (y = 0; y <= radius; y++)
13274   {
13275     int sx, sy, sx2, sy2, lx, ly;
13276
13277     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
13278
13279     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13280     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13281     sx = getLoResScreenPos(sx2);
13282     sy = getLoResScreenPos(sy2);
13283     lx = sx + level_xpos;
13284     ly = sy + level_ypos;
13285
13286     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13287       DrawLineElement(sx2, sy2, element, change_level);
13288   }
13289 }
13290
13291 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
13292                     int element, boolean change_level)
13293 {
13294   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13295   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13296
13297   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13298 }
13299
13300 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
13301
13302 #if DRAW_CIRCLES_BUTTON_AVAILABLE
13303 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
13304                        int element, boolean change_level)
13305 {
13306   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13307   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13308   int mirror_to_x2 = from_x - (to_x2 - from_x);
13309   int mirror_to_y2 = from_y - (to_y2 - from_y);
13310
13311   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13312   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
13313   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
13314   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element, change_level);
13315 }
13316 #endif
13317
13318 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
13319 {
13320   int from_sx, from_sy;
13321   int to_sx, to_sy;
13322
13323   if (from_x > to_x)
13324     swap_numbers(&from_x, &to_x);
13325
13326   if (from_y > to_y)
13327     swap_numbers(&from_y, &to_y);
13328
13329   from_sx = SX + from_x * ed_tilesize;
13330   from_sy = SY + from_y * ed_tilesize;
13331   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
13332   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
13333
13334   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
13335   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
13336   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
13337   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
13338
13339   if (from_x == to_x && from_y == to_y)
13340     MarkTileDirty(from_x/2, from_y/2);
13341   else
13342     redraw_mask |= REDRAW_FIELD;
13343 }
13344
13345 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
13346                         int element, boolean change_level)
13347 {
13348   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
13349 }
13350
13351 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
13352                        int element, boolean change_level)
13353 {
13354   if (element == -1 || change_level)
13355     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
13356   else
13357     DrawAreaBorder(from_x, from_y, to_x, to_y);
13358 }
13359
13360 // values for CopyBrushExt()
13361 #define CB_AREA_TO_BRUSH                0
13362 #define CB_BRUSH_TO_CURSOR              1
13363 #define CB_BRUSH_TO_LEVEL               2
13364 #define CB_DELETE_OLD_CURSOR            3
13365 #define CB_DUMP_BRUSH                   4
13366 #define CB_DUMP_BRUSH_SMALL             5
13367 #define CB_CLIPBOARD_TO_BRUSH           6
13368 #define CB_BRUSH_TO_CLIPBOARD           7
13369 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
13370 #define CB_UPDATE_BRUSH_POSITION        9
13371 #define CB_FLIP_BRUSH_X                 10
13372 #define CB_FLIP_BRUSH_Y                 11
13373 #define CB_FLIP_BRUSH_XY                12
13374
13375 #define MAX_CB_PART_SIZE        10
13376 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
13377 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
13378 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
13379                                  MAX_CB_NUM_LINES *     \
13380                                  MAX_CB_PART_SIZE)
13381
13382 static int getFlippedTileExt(int map[], int element)
13383 {
13384   int i;
13385
13386   for (i = 0; map[i] != -1; i++)
13387     if (map[i] == element)
13388       return map[i ^ 1];        // get flipped element by flipping LSB of index
13389
13390   return element;
13391 }
13392
13393 static int getFlippedTileX(int element)
13394 {
13395   int map[] =
13396   {
13397     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_RIGHT,
13398     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_RIGHT,
13399     EL_BUG_LEFT,                        EL_BUG_RIGHT,
13400     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_RIGHT,
13401     EL_PACMAN_LEFT,                     EL_PACMAN_RIGHT,
13402     EL_ARROW_LEFT,                      EL_ARROW_RIGHT,
13403     EL_MOLE_LEFT,                       EL_MOLE_RIGHT,
13404     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_RIGHT,
13405     EL_YAMYAM_LEFT,                     EL_YAMYAM_RIGHT,
13406     EL_SP_PORT_LEFT,                    EL_SP_PORT_RIGHT,
13407     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_RIGHT,
13408     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_RIGHT,
13409     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_RIGHT,
13410     EL_CONVEYOR_BELT_1_LEFT,            EL_CONVEYOR_BELT_1_RIGHT,
13411     EL_CONVEYOR_BELT_2_LEFT,            EL_CONVEYOR_BELT_2_RIGHT,
13412     EL_CONVEYOR_BELT_3_LEFT,            EL_CONVEYOR_BELT_3_RIGHT,
13413     EL_CONVEYOR_BELT_4_LEFT,            EL_CONVEYOR_BELT_4_RIGHT,
13414     EL_SPRING_LEFT,                     EL_SPRING_RIGHT,
13415     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_RIGHT,
13416     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_VERTICAL_RIGHT,
13417     EL_TUBE_LEFT_UP,                    EL_TUBE_RIGHT_UP,
13418     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_DOWN,
13419     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_RIGHT,
13420     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_TOPRIGHT,
13421     EL_DC_STEELWALL_1_BOTTOMLEFT,       EL_DC_STEELWALL_1_BOTTOMRIGHT,
13422     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_TOPRIGHT_2,
13423     EL_DC_STEELWALL_1_BOTTOMLEFT_2,     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13424     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_RIGHT,
13425     EL_ACID_POOL_TOPLEFT,               EL_ACID_POOL_TOPRIGHT,
13426     EL_ACID_POOL_BOTTOMLEFT,            EL_ACID_POOL_BOTTOMRIGHT,
13427
13428     -1
13429   };
13430
13431   return getFlippedTileExt(map, element);
13432 }
13433
13434 static int getFlippedTileY(int element)
13435 {
13436   int map[] =
13437   {
13438     EL_BD_BUTTERFLY_UP,                 EL_BD_BUTTERFLY_DOWN,
13439     EL_BD_FIREFLY_UP,                   EL_BD_FIREFLY_DOWN,
13440     EL_BUG_UP,                          EL_BUG_DOWN,
13441     EL_SPACESHIP_UP,                    EL_SPACESHIP_DOWN,
13442     EL_PACMAN_UP,                       EL_PACMAN_DOWN,
13443     EL_ARROW_UP,                        EL_ARROW_DOWN,
13444     EL_MOLE_UP,                         EL_MOLE_DOWN,
13445     EL_BALLOON_SWITCH_UP,               EL_BALLOON_SWITCH_DOWN,
13446     EL_YAMYAM_UP,                       EL_YAMYAM_DOWN,
13447     EL_SP_PORT_UP,                      EL_SP_PORT_DOWN,
13448     EL_SP_GRAVITY_PORT_UP,              EL_SP_GRAVITY_PORT_DOWN,
13449     EL_SP_GRAVITY_ON_PORT_UP,           EL_SP_GRAVITY_ON_PORT_DOWN,
13450     EL_SP_GRAVITY_OFF_PORT_UP,          EL_SP_GRAVITY_OFF_PORT_DOWN,
13451     EL_SP_CHIP_TOP,                     EL_SP_CHIP_BOTTOM,
13452     EL_TUBE_HORIZONTAL_UP,              EL_TUBE_HORIZONTAL_DOWN,
13453     EL_TUBE_LEFT_UP,                    EL_TUBE_LEFT_DOWN,
13454     EL_TUBE_RIGHT_UP,                   EL_TUBE_RIGHT_DOWN,
13455     EL_DC_STEELWALL_1_TOP,              EL_DC_STEELWALL_1_BOTTOM,
13456     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_BOTTOMLEFT,
13457     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMRIGHT,
13458     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13459     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13460     EL_DC_STEELWALL_2_TOP,              EL_DC_STEELWALL_2_BOTTOM,
13461     EL_EMC_WALL_1,                      EL_EMC_WALL_3,
13462
13463     -1
13464   };
13465
13466   return getFlippedTileExt(map, element);
13467 }
13468
13469 static int getFlippedTileXY(int element)
13470 {
13471   int map[] =
13472   {
13473     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_UP,
13474     EL_BD_BUTTERFLY_RIGHT,              EL_BD_BUTTERFLY_DOWN,
13475     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_UP,
13476     EL_BD_FIREFLY_RIGHT,                EL_BD_FIREFLY_DOWN,
13477     EL_BUG_LEFT,                        EL_BUG_UP,
13478     EL_BUG_RIGHT,                       EL_BUG_DOWN,
13479     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_UP,
13480     EL_SPACESHIP_RIGHT,                 EL_SPACESHIP_DOWN,
13481     EL_PACMAN_LEFT,                     EL_PACMAN_UP,
13482     EL_PACMAN_RIGHT,                    EL_PACMAN_DOWN,
13483     EL_ARROW_LEFT,                      EL_ARROW_UP,
13484     EL_ARROW_RIGHT,                     EL_ARROW_DOWN,
13485     EL_MOLE_LEFT,                       EL_MOLE_UP,
13486     EL_MOLE_RIGHT,                      EL_MOLE_DOWN,
13487     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_UP,
13488     EL_BALLOON_SWITCH_RIGHT,            EL_BALLOON_SWITCH_DOWN,
13489     EL_YAMYAM_LEFT,                     EL_YAMYAM_UP,
13490     EL_YAMYAM_RIGHT,                    EL_YAMYAM_DOWN,
13491     EL_SP_PORT_LEFT,                    EL_SP_PORT_UP,
13492     EL_SP_PORT_RIGHT,                   EL_SP_PORT_DOWN,
13493     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_UP,
13494     EL_SP_GRAVITY_PORT_RIGHT,           EL_SP_GRAVITY_PORT_DOWN,
13495     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_UP,
13496     EL_SP_GRAVITY_ON_PORT_RIGHT,        EL_SP_GRAVITY_ON_PORT_DOWN,
13497     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_UP,
13498     EL_SP_GRAVITY_OFF_PORT_RIGHT,       EL_SP_GRAVITY_OFF_PORT_DOWN,
13499     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_TOP,
13500     EL_SP_CHIP_RIGHT,                   EL_SP_CHIP_BOTTOM,
13501     EL_TUBE_VERTICAL,                   EL_TUBE_HORIZONTAL,
13502     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_HORIZONTAL_UP,
13503     EL_TUBE_VERTICAL_RIGHT,             EL_TUBE_HORIZONTAL_DOWN,
13504     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_UP,
13505     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_TOP,
13506     EL_DC_STEELWALL_1_RIGHT,            EL_DC_STEELWALL_1_BOTTOM,
13507     EL_DC_STEELWALL_1_HORIZONTAL,       EL_DC_STEELWALL_1_VERTICAL,
13508     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMLEFT,
13509     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13510     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_TOP,
13511     EL_DC_STEELWALL_2_RIGHT,            EL_DC_STEELWALL_2_BOTTOM,
13512     EL_DC_STEELWALL_2_HORIZONTAL,       EL_DC_STEELWALL_2_VERTICAL,
13513     EL_EXPANDABLE_WALL_HORIZONTAL,      EL_EXPANDABLE_WALL_VERTICAL,
13514     EL_EXPANDABLE_STEELWALL_HORIZONTAL, EL_EXPANDABLE_STEELWALL_VERTICAL,
13515
13516     -1
13517   };
13518
13519   return getFlippedTileExt(map, element);
13520 }
13521
13522 static int getFlippedTile(int element, int mode)
13523 {
13524   if (IS_MM_ELEMENT(element))
13525   {
13526     // get MM game element
13527     element = map_element_RND_to_MM(element);
13528
13529     // get flipped game element
13530     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX_MM(element) :
13531                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY_MM(element) :
13532                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY_MM(element) :
13533                element);
13534
13535     // get RND game element again
13536     element = map_element_MM_to_RND(element);
13537   }
13538   else
13539   {
13540     // get flipped game element
13541     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX(element) :
13542                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY(element) :
13543                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY(element) :
13544                element);
13545   }
13546
13547   return element;
13548 }
13549
13550 static void SwapFlippedTiles(short *tile1, short *tile2, int mode)
13551 {
13552   // flip tiles
13553   short tile1_flipped = getFlippedTile(*tile1, mode);
13554   short tile2_flipped = getFlippedTile(*tile2, mode);
13555
13556   // swap tiles
13557   *tile1 = tile2_flipped;
13558   *tile2 = tile1_flipped;
13559 }
13560
13561 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
13562 {
13563   DrawLineElement(sx, sy, element, change_level);
13564 }
13565
13566 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
13567                          int button, int mode)
13568 {
13569   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
13570   static int brush_width, brush_height;
13571   static int last_cursor_x = -1, last_cursor_y = -1;
13572   static boolean delete_old_brush = FALSE;
13573   int new_element = BUTTON_ELEMENT(button);
13574   int x, y;
13575
13576   if (mode == CB_DUMP_BRUSH ||
13577       mode == CB_DUMP_BRUSH_SMALL ||
13578       mode == CB_BRUSH_TO_CLIPBOARD ||
13579       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13580   {
13581     if (edit_mode != ED_MODE_DRAWING)
13582       return;
13583
13584     char part[MAX_CB_PART_SIZE + 1] = "";
13585     char text[MAX_CB_TEXT_SIZE + 1] = "";
13586     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
13587     int height = (draw_with_brush ? brush_height : lev_fieldy);
13588     char *format = "%s%03d";
13589
13590     for (y = 0; y < height; y++)
13591       for (x = 0; x < width; x++)
13592         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
13593           format = "%s%04d";
13594
13595     for (y = 0; y < height; y++)
13596     {
13597       for (x = 0; x < width; x++)
13598       {
13599         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
13600         char *prefix = (mode == CB_DUMP_BRUSH ||
13601                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
13602
13603         if (element >= NUM_FILE_ELEMENTS)
13604           element = EL_UNKNOWN;
13605
13606         // copy brush to level sketch text buffer for the R'n'D forum:
13607         // - large tiles: `xxx or `xxxx (0x60 ASCII)
13608         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
13609         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
13610         strcat(text, part);
13611       }
13612
13613       strcat(text, "\n");
13614     }
13615
13616     if (mode == CB_BRUSH_TO_CLIPBOARD ||
13617         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13618       SDL_SetClipboardText(text);
13619     else
13620       Print("%s", text);        // print brush data to console and log file
13621
13622     return;
13623   }
13624
13625   if (mode == CB_CLIPBOARD_TO_BRUSH)
13626   {
13627     if (edit_mode != ED_MODE_DRAWING)
13628       return;
13629
13630     if (!SDL_HasClipboardText())
13631     {
13632       Request("Clipboard is empty!", REQ_CONFIRM);
13633
13634       return;
13635     }
13636
13637     boolean copy_to_brush = (draw_with_brush ||
13638                              drawing_function == GADGET_ID_GRAB_BRUSH);
13639
13640     // this will delete the old brush, if already drawing with a brush
13641     if (copy_to_brush)
13642       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
13643
13644     // initialization is required for "odd" (incomplete) clipboard content
13645     for (x = 0; x < MAX_LEV_FIELDX; x++)
13646       for (y = 0; y < MAX_LEV_FIELDY; y++)
13647         brush_buffer[x][y] = EL_EMPTY;
13648
13649     brush_width  = 0;
13650     brush_height = 0;
13651     x = 0;
13652     y = 0;
13653
13654     char *clipboard_text = SDL_GetClipboardText();
13655     char *ptr = clipboard_text;
13656     boolean allow_new_row = FALSE;
13657     boolean stop = FALSE;
13658
13659     while (*ptr && !stop)
13660     {
13661       boolean prefix_found = FALSE;
13662       boolean start_new_row = FALSE;
13663
13664       // level sketch element number prefixes (may be multi-byte characters)
13665       char *prefix_list[] = { "`", "¸" };
13666       int i;
13667
13668       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
13669       {
13670         char *prefix = prefix_list[i];
13671
13672         // check if string is large enough for prefix
13673         if (strlen(ptr) < strlen(prefix))
13674         {
13675           stop = TRUE;
13676
13677           break;
13678         }
13679
13680         // check if string starts with prefix
13681         if (strPrefix(ptr, prefix))
13682         {
13683           ptr += strlen(prefix);
13684
13685           prefix_found = TRUE;
13686
13687           break;
13688         }
13689       }
13690
13691       // check if prefix found and followed by (at least) three digits
13692       if (prefix_found &&
13693           strlen(ptr) >= 3 &&
13694           ptr[0] >= '0' && ptr[0] <= '9' &&
13695           ptr[1] >= '0' && ptr[1] <= '9' &&
13696           ptr[2] >= '0' && ptr[2] <= '9')
13697       {
13698         int element = ((ptr[0] - '0') * 100 +
13699                        (ptr[1] - '0') * 10 +
13700                        (ptr[2] - '0'));
13701
13702         ptr += 3;
13703
13704         // level sketch element number might consist of four digits
13705         if (ptr[0] >= '0' && ptr[0] <= '9')
13706         {
13707           element = element * 10 + (ptr[0] - '0');
13708           ptr++;
13709         }
13710
13711         // remap some (historic, now obsolete) elements
13712         element = getMappedElement(element);
13713
13714         if (element >= NUM_FILE_ELEMENTS)
13715           element = EL_UNKNOWN;
13716
13717         brush_buffer[x][y] = element;
13718
13719         brush_width  = MAX(x + 1, brush_width);
13720         brush_height = MAX(y + 1, brush_height);
13721
13722         x++;
13723
13724         if (x >= MAX_LEV_FIELDX)
13725           start_new_row = TRUE;
13726
13727         allow_new_row = TRUE;
13728       }
13729       else
13730       {
13731         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
13732           start_new_row = TRUE;
13733
13734         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
13735       }
13736
13737       if (start_new_row)
13738       {
13739         x = 0;
13740         y++;
13741
13742         if (y >= MAX_LEV_FIELDY)
13743           stop = TRUE;
13744
13745         allow_new_row = FALSE;
13746       }
13747     }
13748
13749     SDL_free(clipboard_text);
13750
13751     if (brush_width == 0 || brush_height == 0)
13752     {
13753       Request("No level sketch found in clipboard!", REQ_CONFIRM);
13754
13755       return;
13756     }
13757
13758     if (copy_to_brush)
13759     {
13760       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
13761       int mx, my;
13762
13763       SDL_GetMouseState(&mx, &my);
13764
13765       // if inside drawing area, activate and draw brush at last mouse position
13766       if (mx >= gi->x && mx < gi->x + gi->width &&
13767           my >= gi->y && my < gi->y + gi->height)
13768         CopyBrushToCursor(last_cursor_x, last_cursor_y);
13769
13770       draw_with_brush = TRUE;
13771     }
13772     else
13773     {
13774       char request[100];
13775
13776       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
13777               brush_width, brush_height);
13778
13779       if (!Request(request, REQ_ASK))
13780         return;
13781
13782       for (x = 0; x < MAX_LEV_FIELDX; x++)
13783         for (y = 0; y < MAX_LEV_FIELDY; y++)
13784           Tile[x][y] = brush_buffer[x][y];
13785
13786       lev_fieldx = level.fieldx = brush_width;
13787       lev_fieldy = level.fieldy = brush_height;
13788
13789       boolean use_bd_engine = TRUE;
13790       boolean use_em_engine = TRUE;
13791       boolean use_sp_engine = TRUE;
13792       boolean use_mm_engine = TRUE;
13793
13794       for (x = 0; x < MAX_LEV_FIELDX; x++)
13795       {
13796         for (y = 0; y < MAX_LEV_FIELDY; y++)
13797         {
13798           int element = Tile[x][y];
13799
13800           if (!IS_BD_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13801             use_bd_engine = FALSE;
13802
13803           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13804             use_em_engine = FALSE;
13805
13806           if (!IS_SP_ELEMENT(element))
13807             use_sp_engine = FALSE;
13808
13809           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
13810             use_mm_engine = FALSE;
13811         }
13812       }
13813
13814       level.game_engine_type = (use_bd_engine ? GAME_ENGINE_TYPE_BD :
13815                                 use_em_engine ? GAME_ENGINE_TYPE_EM :
13816                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
13817                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
13818                                 GAME_ENGINE_TYPE_RND);
13819
13820       // update element selection list
13821       ReinitializeElementList();
13822       ModifyEditorElementList();
13823
13824       SetBorderElement();
13825
13826       DrawEditModeWindow();
13827       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13828     }
13829
13830     return;
13831   }
13832
13833   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
13834     return;
13835
13836   if (mode == CB_AREA_TO_BRUSH)
13837   {
13838     int from_lx, from_ly;
13839
13840     if (from_x > to_x)
13841       swap_numbers(&from_x, &to_x);
13842
13843     if (from_y > to_y)
13844       swap_numbers(&from_y, &to_y);
13845
13846     brush_width = to_x - from_x + 1;
13847     brush_height = to_y - from_y + 1;
13848
13849     from_lx = from_x + level_xpos;
13850     from_ly = from_y + level_ypos;
13851
13852     for (y = 0; y < brush_height; y++)
13853     {
13854       for (x = 0; x < brush_width; x++)
13855       {
13856         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
13857
13858         if (button != 1)
13859           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
13860       }
13861     }
13862
13863     if (button != 1)
13864       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13865
13866     delete_old_brush = FALSE;
13867   }
13868   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
13869            mode == CB_BRUSH_TO_LEVEL)
13870   {
13871     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
13872     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
13873     int cursor_from_x = cursor_x - brush_width / 2;
13874     int cursor_from_y = cursor_y - brush_height / 2;
13875     int border_from_x = cursor_x, border_from_y = cursor_y;
13876     int border_to_x = cursor_x, border_to_y = cursor_y;
13877
13878     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
13879       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13880
13881     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
13882         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
13883     {
13884       delete_old_brush = FALSE;
13885
13886       return;
13887     }
13888
13889     for (y = 0; y < brush_height; y++)
13890     {
13891       for (x = 0; x < brush_width; x++)
13892       {
13893         int sx = cursor_from_x + x;
13894         int sy = cursor_from_y + y;
13895         int lx = sx + level_xpos;
13896         int ly = sy + level_ypos;
13897         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
13898         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
13899                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
13900                        brush_buffer[x][y] : new_element);
13901
13902         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13903         {
13904           if (sx < border_from_x)
13905             border_from_x = sx;
13906           else if (sx > border_to_x)
13907             border_to_x = sx;
13908           if (sy < border_from_y)
13909             border_from_y = sy;
13910           else if (sy > border_to_y)
13911             border_to_y = sy;
13912
13913           DrawBrushElement(sx, sy, element, change_level);
13914         }
13915       }
13916     }
13917
13918     if (mode != CB_DELETE_OLD_CURSOR)
13919       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
13920
13921     last_cursor_x = cursor_x;
13922     last_cursor_y = cursor_y;
13923
13924     delete_old_brush = TRUE;
13925   }
13926   else if (mode == CB_FLIP_BRUSH_X)
13927   {
13928     for (y = 0; y < brush_height; y++)
13929       for (x = 0; x < (brush_width + 1) / 2; x++)
13930         SwapFlippedTiles(&brush_buffer[x][y],
13931                          &brush_buffer[brush_width - x - 1][y], mode);
13932
13933     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13934   }
13935   else if (mode == CB_FLIP_BRUSH_Y)
13936   {
13937     for (y = 0; y < (brush_height + 1) / 2; y++)
13938       for (x = 0; x < brush_width; x++)
13939         SwapFlippedTiles(&brush_buffer[x][y],
13940                          &brush_buffer[x][brush_height - y - 1], mode);
13941
13942     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13943   }
13944   else if (mode == CB_FLIP_BRUSH_XY)
13945   {
13946     CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13947
13948     for (y = 0; y < MAX(brush_width, brush_height); y++)
13949       for (x = 0; x <= y; x++)
13950         SwapFlippedTiles(&brush_buffer[x][y],
13951                          &brush_buffer[y][x], mode);
13952
13953     swap_numbers(&brush_width, &brush_height);
13954
13955     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13956   }
13957
13958   if (mode == CB_UPDATE_BRUSH_POSITION)
13959   {
13960     last_cursor_x = from_x;
13961     last_cursor_y = from_y;
13962   }
13963 }
13964
13965 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
13966                             int button)
13967 {
13968   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
13969 }
13970
13971 static void CopyBrushToLevel(int x, int y, int button)
13972 {
13973   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
13974 }
13975
13976 static void CopyBrushToCursor(int x, int y)
13977 {
13978   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13979 }
13980
13981 static void UpdateBrushPosition(int x, int y)
13982 {
13983   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
13984 }
13985
13986 static void DeleteBrushFromCursor(void)
13987 {
13988   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13989 }
13990
13991 static void FlipBrushX(void)
13992 {
13993   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
13994 }
13995
13996 static void FlipBrushY(void)
13997 {
13998   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_Y);
13999 }
14000
14001 static void RotateBrush(void)
14002 {
14003   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_XY);
14004   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
14005 }
14006
14007 void DumpBrush(void)
14008 {
14009   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
14010 }
14011
14012 void DumpBrush_Small(void)
14013 {
14014   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
14015 }
14016
14017 void CopyClipboardToBrush(void)
14018 {
14019   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
14020 }
14021
14022 void CopyBrushToClipboard(void)
14023 {
14024   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
14025 }
14026
14027 void CopyBrushToClipboard_Small(void)
14028 {
14029   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
14030 }
14031
14032 void UndoLevelEditorOperation(void)
14033 {
14034   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
14035 }
14036
14037 void RedoLevelEditorOperation(void)
14038 {
14039   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14040 }
14041
14042 static void FloodFill(int from_x, int from_y, int fill_element)
14043 {
14044   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
14045 }
14046
14047 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
14048 {
14049   int from_x = from_sx2 + 2 * level_xpos;
14050   int from_y = from_sy2 + 2 * level_ypos;
14051   int max_fillx = lev_fieldx * 2;
14052   int max_filly = lev_fieldy * 2;
14053   short Fill[max_fillx][max_filly];
14054   int x, y;
14055
14056   for (x = 0; x < max_fillx; x++)
14057     for (y = 0; y < max_filly; y++)
14058       Fill[x][y] = getLevelElementHiRes(x, y);
14059
14060   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
14061                     Fill, max_fillx, max_filly);
14062
14063   for (x = 0; x < max_fillx; x++)
14064     for (y = 0; y < max_filly; y++)
14065       if (Fill[x][y] == fill_element)
14066         SetLevelElementHiRes(x, y, Fill[x][y]);
14067 }
14068
14069 // values for DrawLevelText() modes
14070 #define TEXT_INIT               0
14071 #define TEXT_SETCURSOR          1
14072 #define TEXT_WRITECHAR          2
14073 #define TEXT_BACKSPACE          3
14074 #define TEXT_NEWLINE            4
14075 #define TEXT_END                5
14076 #define TEXT_QUERY_TYPING       6
14077
14078 static int DrawLevelText(int sx, int sy, char letter, int mode)
14079 {
14080   static short delete_buffer[MAX_LEV_FIELDX];
14081   static int start_sx;
14082   static int last_sx, last_sy;
14083   static boolean typing = FALSE;
14084   int letter_element;
14085   int lx = 0, ly = 0;
14086
14087   // map lower case letters to upper case and convert special characters
14088   if (letter >= 'a' && letter <= 'z')
14089     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
14090   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
14091     letter_element = EL_CHAR_AUMLAUT;
14092   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
14093     letter_element = EL_CHAR_OUMLAUT;
14094   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
14095     letter_element = EL_CHAR_UUMLAUT;
14096   else if (letter == '^')
14097     letter_element = EL_CHAR_COPYRIGHT;
14098   else
14099     letter_element = EL_CHAR_ASCII0 + letter;
14100
14101   if (mode != TEXT_INIT)
14102   {
14103     if (!typing)
14104       return FALSE;
14105
14106     if (mode != TEXT_SETCURSOR)
14107     {
14108       sx = last_sx;
14109       sy = last_sy;
14110     }
14111
14112     lx = last_sx + level_xpos;
14113     ly = last_sy + level_ypos;
14114   }
14115
14116   switch (mode)
14117   {
14118     case TEXT_INIT:
14119       if (typing)
14120         DrawLevelText(0, 0, 0, TEXT_END);
14121
14122       typing = TRUE;
14123       start_sx = sx;
14124       last_sx = sx;
14125       last_sy = sy;
14126       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
14127       break;
14128
14129     case TEXT_SETCURSOR:
14130       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
14131       DrawAreaBorder(sx, sy, sx, sy);
14132       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
14133                      ed_tilesize, ed_tilesize);
14134       last_sx = sx;
14135       last_sy = sy;
14136       break;
14137
14138     case TEXT_WRITECHAR:
14139       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
14140       {
14141         if (new_element1 >= EL_STEEL_CHAR_START &&
14142             new_element1 <= EL_STEEL_CHAR_END)
14143           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
14144
14145         delete_buffer[sx - start_sx] = Tile[lx][ly];
14146         Tile[lx][ly] = letter_element;
14147
14148         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
14149           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
14150         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14151           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14152         else
14153           DrawLevelText(0, 0, 0, TEXT_END);
14154
14155         level.changed = TRUE;
14156       }
14157       break;
14158
14159     case TEXT_BACKSPACE:
14160       if (sx > start_sx)
14161       {
14162         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
14163         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
14164         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
14165       }
14166       break;
14167
14168     case TEXT_NEWLINE:
14169       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14170         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14171       else
14172         DrawLevelText(0, 0, 0, TEXT_END);
14173       break;
14174
14175     case TEXT_END:
14176       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14177       DrawEditorElement(sx, sy, Tile[lx][ly]);
14178       StopTextInput();
14179       typing = FALSE;
14180       break;
14181
14182     case TEXT_QUERY_TYPING:
14183       break;
14184
14185     default:
14186       break;
14187   }
14188
14189   return typing;
14190 }
14191
14192 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
14193                           int element, boolean change_level)
14194 {
14195   int lx = sx + level_xpos;
14196   int ly = sy + level_ypos;
14197
14198   if (element == -1)
14199     DrawEditorElement(sx, sy, Tile[lx][ly]);
14200   else
14201     DrawAreaBorder(sx, sy, sx, sy);
14202 }
14203
14204 static void CheckLevelBorderElement(boolean redraw_playfield)
14205 {
14206   int last_border_element = BorderElement;
14207
14208   SetBorderElement();
14209
14210   if (redraw_playfield && BorderElement != last_border_element)
14211     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14212 }
14213
14214 static void CopyLevelToUndoBuffer(int mode)
14215 {
14216   static boolean accumulated_undo = FALSE;
14217   boolean new_undo_buffer_position = TRUE;
14218   int x, y;
14219
14220   if (undo_buffer_steps == 0)
14221     accumulated_undo = FALSE;
14222
14223   switch (mode)
14224   {
14225     case UNDO_IMMEDIATE:
14226       accumulated_undo = FALSE;
14227       break;
14228
14229     case UNDO_ACCUMULATE:
14230       if (accumulated_undo)
14231         new_undo_buffer_position = FALSE;
14232       accumulated_undo = TRUE;
14233       break;
14234
14235     default:
14236       break;
14237   }
14238
14239   if (new_undo_buffer_position)
14240   {
14241     // advance position in undo buffer ring
14242     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14243
14244     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
14245       undo_buffer_steps++;
14246   }
14247
14248   // always reset redo buffer when storing level change into undo buffer
14249   redo_buffer_steps = 0;
14250
14251   for (x = 0; x < lev_fieldx; x++)
14252     for (y = 0; y < lev_fieldy; y++)
14253       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
14254
14255   // check if drawing operation forces change of border style
14256   CheckLevelBorderElement(TRUE);
14257
14258   level.changed = TRUE;
14259 }
14260
14261 static void RandomPlacement(int new_element)
14262 {
14263   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
14264   int num_free_positions = 0;
14265   int num_percentage, num_elements;
14266   int x, y;
14267
14268   ResetIntelliDraw();
14269
14270   // determine number of free positions for randomly placing the new element
14271   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
14272   {
14273     free_position[x][y] =
14274       (random_placement_background_restricted ?
14275        Tile[x][y] == random_placement_background_element :
14276        Tile[x][y] != new_element);
14277
14278     if (free_position[x][y])
14279       num_free_positions++;
14280   }
14281
14282   // determine number of new elements to place there
14283   num_percentage = num_free_positions * random_placement_value / 100;
14284   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
14285                   num_percentage : random_placement_value);
14286
14287   // if less free positions than elements to place, fill all these positions
14288   if (num_free_positions < num_elements)
14289   {
14290     for (x = 0; x < lev_fieldx; x++)
14291       for (y = 0; y < lev_fieldy; y++)
14292         if (free_position[x][y])
14293           SetElement(x, y, new_element);
14294   }
14295   else
14296   {
14297     while (num_elements > 0)
14298     {
14299       x = GetSimpleRandom(lev_fieldx);
14300       y = GetSimpleRandom(lev_fieldy);
14301
14302       // don't place element at the same position twice
14303       if (free_position[x][y])
14304       {
14305         free_position[x][y] = FALSE;
14306         SetElement(x, y, new_element);
14307         num_elements--;
14308       }
14309     }
14310   }
14311
14312   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14313   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14314 }
14315
14316 static void WrapLevel(int dx, int dy)
14317 {
14318   int wrap_dx = lev_fieldx - dx;
14319   int wrap_dy = lev_fieldy - dy;
14320   int x, y;
14321
14322   for (x = 0; x < lev_fieldx; x++)
14323     for (y = 0; y < lev_fieldy; y++)
14324       TileBackup[x][y] = Tile[x][y];
14325
14326   for (x = 0; x < lev_fieldx; x++)
14327     for (y = 0; y < lev_fieldy; y++)
14328       Tile[x][y] =
14329         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
14330
14331   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14332   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
14333 }
14334
14335 static void DrawAreaElementHighlight(boolean highlighted,
14336                                      boolean highlighted_similar)
14337 {
14338   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14339
14340   if (!highlighted)
14341     return;
14342
14343   int x, y;
14344
14345   for (x = 0; x < ed_fieldx; x++)
14346   {
14347     for (y = 0; y < ed_fieldy; y++)
14348     {
14349       boolean highlight = FALSE;
14350       int lx = x + level_xpos;
14351       int ly = y + level_ypos;
14352
14353       if (!IN_LEV_FIELD(lx, ly))
14354         continue;
14355
14356       // check if element is the same
14357       if (Tile[lx][ly] == new_element1)
14358         highlight = TRUE;
14359
14360       // check if element is similar
14361       if (highlighted_similar &&
14362           strEqual(element_info[Tile[lx][ly]].class_name,
14363                    element_info[new_element1].class_name))
14364         highlight = TRUE;
14365
14366       // check if element is matching MM style wall
14367       if (IS_MM_WALL(Tile[lx][ly]) &&
14368           map_mm_wall_element(Tile[lx][ly]) == new_element1)
14369         highlight = TRUE;
14370
14371       if (!highlight)
14372         continue;
14373
14374       if (IS_MM_WALL(Tile[lx][ly]) && !highlighted_similar)
14375       {
14376         int i;
14377
14378         for (i = 0; i < 4; i++)
14379         {
14380           if (!(MM_WALL_BITS(Tile[lx][ly]) & (1 << i)))
14381             continue;
14382
14383           int xx = x * 2 + (i % 2);
14384           int yy = y * 2 + (i / 2);
14385           int sx = SX + xx * ed_tilesize / 2;
14386           int sy = SY + yy * ed_tilesize / 2;
14387           int from_sx = sx;
14388           int from_sy = sy;
14389           int to_sx = sx + ed_tilesize / 2 - 1;
14390           int to_sy = sy + ed_tilesize / 2 - 1;
14391
14392           DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14393           DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14394           DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14395           DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14396         }
14397       }
14398       else
14399       {
14400         int sx = SX + x * ed_tilesize;
14401         int sy = SY + y * ed_tilesize;
14402         int from_sx = sx;
14403         int from_sy = sy;
14404         int to_sx = sx + ed_tilesize - 1;
14405         int to_sy = sy + ed_tilesize - 1;
14406
14407         DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14408         DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14409         DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14410         DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14411       }
14412     }
14413   }
14414 }
14415
14416 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
14417 {
14418   char *template_filename_old = getLocalLevelTemplateFilename();
14419   char *template_filename_new =
14420     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
14421
14422   if (copyFile(template_filename_old, template_filename_new) != 0)
14423     Request("Cannot copy level template!", REQ_CONFIRM);
14424
14425   free(template_filename_new);
14426 }
14427
14428 static void HandleDrawingAreas(struct GadgetInfo *gi)
14429 {
14430   static boolean started_inside_drawing_area = FALSE;
14431   static int last_sx = -1;
14432   static int last_sy = -1;
14433   static int last_sx2 = -1;
14434   static int last_sy2 = -1;
14435   int id = gi->custom_id;
14436   int type_id = gi->custom_type_id;
14437   boolean button_press_event;
14438   boolean button_release_event;
14439   boolean inside_drawing_area = !gi->event.off_borders;
14440   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
14441   int actual_drawing_function;
14442   int button = gi->event.button;
14443   int new_element = BUTTON_ELEMENT(button);
14444   int sx = gi->event.x, sy = gi->event.y;
14445   int min_sx = 0, min_sy = 0;
14446   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
14447   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
14448   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
14449   int sx2 = gi->event.mx / mini_item_xsize;
14450   int sy2 = gi->event.my / mini_item_ysize;
14451   int dx = sx2 % 2;
14452   int dy = sy2 % 2;
14453   int lx = 0, ly = 0;
14454   int x, y;
14455
14456   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
14457   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
14458
14459   // make sure to stay inside drawing area boundaries
14460   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
14461   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
14462
14463   if (draw_level)
14464   {
14465     int min_lx = 0, min_ly = 0;
14466     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
14467
14468     // get positions inside level field
14469     lx = sx + level_xpos;
14470     ly = sy + level_ypos;
14471
14472     if (!IN_LEV_FIELD(lx, ly))
14473       inside_drawing_area = FALSE;
14474
14475     // make sure to stay inside level field boundaries
14476     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
14477     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
14478
14479     // correct drawing area positions accordingly
14480     sx = lx - level_xpos;
14481     sy = ly - level_ypos;
14482   }
14483
14484   // also correct MM wall-sized (double) drawing area positions accordingly
14485   if (sx2 / 2 < sx || sx2 / 2 > sx)
14486   {
14487     dx = (sx2 / 2 < sx ? 0 : 1);
14488     sx2 = sx * 2 + dx;
14489   }
14490   if (sy2 / 2 < sy || sy2 / 2 > sy)
14491   {
14492     dy = (sy2 / 2 < sy ? 0 : 1);
14493     sy2 = sy * 2 + dy;
14494   }
14495
14496   if (!button_press_event && !button_release_event)
14497   {
14498     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
14499     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
14500                              isHiresTileElement(old_element) &&
14501                              isHiresDrawElement(new_element));
14502
14503     // prevent handling events for every pixel position when moving mouse
14504     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
14505         (sx2 == last_sx2 && sy2 == last_sy2))
14506       return;
14507   }
14508
14509   last_sx = sx;
14510   last_sy = sy;
14511   last_sx2 = sx2;
14512   last_sy2 = sy2;
14513
14514   if (button_press_event)
14515     started_inside_drawing_area = inside_drawing_area;
14516
14517   if (!started_inside_drawing_area)
14518     return;
14519
14520   if (!IS_VALID_BUTTON(button))
14521     return;
14522
14523   // handle info callback for each invocation of action callback
14524   gi->callback_info(gi);
14525
14526   // automatically switch to 'single item' drawing mode, if needed
14527   actual_drawing_function =
14528     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
14529      drawing_function : GADGET_ID_SINGLE_ITEMS);
14530
14531   // clicking into drawing area with pressed Control key picks element
14532   if (GetKeyModState() & KMOD_Control)
14533   {
14534     last_drawing_function = drawing_function;
14535     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
14536   }
14537
14538   if (GetKeyModState() & KMOD_Shift)
14539   {
14540     if (button_press_event || button_release_event)
14541       ResetIntelliDraw();
14542   }
14543
14544   SetDrawModeHiRes(-1);         // reset to normal draw mode
14545
14546   switch (actual_drawing_function)
14547   {
14548     case GADGET_ID_SINGLE_ITEMS:
14549       if (draw_level)
14550       {
14551         if (button_release_event)
14552         {
14553           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14554
14555           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
14556               !inside_drawing_area)
14557             DeleteBrushFromCursor();
14558
14559           break;
14560         }
14561
14562         if (draw_with_brush)
14563         {
14564           CopyBrushToLevel(sx, sy, button);
14565         }
14566         else
14567         {
14568           SetDrawModeHiRes(new_element);
14569
14570           if (IS_PLAYER_ELEMENT(new_element) || IS_MM_MCDUFFIN(new_element))
14571           {
14572             // remove player at old position
14573             for (y = 0; y < lev_fieldy; y++)
14574             {
14575               for (x = 0; x < lev_fieldx; x++)
14576               {
14577                 int old_element = Tile[x][y];
14578
14579                 if (IS_PLAYER_ELEMENT(old_element) &&
14580                     IS_PLAYER_ELEMENT(new_element))
14581                 {
14582                   int replaced_with_element =
14583                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
14584                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
14585
14586                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
14587                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
14588
14589                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
14590                      old_element == EL_PLAYER_1 ? EL_EMPTY :
14591
14592                      new_element >= EL_PLAYER_1 &&
14593                      new_element <= EL_PLAYER_4 &&
14594                      new_element == old_element ? EL_EMPTY :
14595
14596                      old_element);
14597
14598                   SetElement(x, y, replaced_with_element);
14599                 }
14600                 else if (IS_MM_MCDUFFIN(old_element) &&
14601                          IS_MM_MCDUFFIN(new_element))
14602                 {
14603                   // remove McDuffin at old position
14604                   SetElement(x, y, EL_EMPTY);
14605                 }
14606               }
14607             }
14608           }
14609
14610           SetElementButton(lx, ly, dx, dy, new_element, button);
14611         }
14612       }
14613       else if (!button_release_event)
14614       {
14615         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14616
14617         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
14618           DrawMiniGraphicExt(drawto,
14619                              gi->x + sx * MINI_TILEX,
14620                              gi->y + sy * MINI_TILEY,
14621                              el2edimg(new_element));
14622         else
14623           DrawFixedGraphicExt(drawto,
14624                               gi->x + sx * TILEX,
14625                               gi->y + sy * TILEY,
14626                               el2edimg(new_element), 0);
14627
14628         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14629           new_element = GFX_ELEMENT(new_element);
14630
14631         drawingarea_info[type_id].value[pos] = new_element;
14632
14633         CopyElementPropertiesToGame(properties_element);
14634
14635         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14636         {
14637           UpdateCustomElementGraphicGadgets();
14638
14639           FrameCounter = 0;     // restart animation frame counter
14640         }
14641       }
14642       break;
14643
14644     case GADGET_ID_CONNECTED_ITEMS:
14645       {
14646         static int last_sx = -1;
14647         static int last_sy = -1;
14648
14649         if (button_release_event)
14650           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14651
14652         SetDrawModeHiRes(new_element);
14653
14654         if (getDrawModeHiRes())
14655         {
14656           sx = sx2;
14657           sy = sy2;
14658         }
14659
14660         if (!button_press_event)
14661           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
14662
14663         last_sx = sx;
14664         last_sy = sy;
14665       }
14666       break;
14667
14668     case GADGET_ID_LINE:
14669     case GADGET_ID_ARC:
14670     case GADGET_ID_RECTANGLE:
14671     case GADGET_ID_FILLED_BOX:
14672       SetDrawModeHiRes(new_element);
14673
14674       if (getDrawModeHiRes())
14675       {
14676         sx = sx2;
14677         sy = sy2;
14678       }
14679       // FALLTHROUGH
14680     case GADGET_ID_GRAB_BRUSH:
14681     case GADGET_ID_TEXT:
14682       {
14683         static int last_sx = -1;
14684         static int last_sy = -1;
14685         static int start_sx = -1;
14686         static int start_sy = -1;
14687         void (*draw_func)(int, int, int, int, int, boolean);
14688
14689         if (drawing_function == GADGET_ID_LINE)
14690           draw_func = DrawLine;
14691         else if (drawing_function == GADGET_ID_ARC)
14692           draw_func = DrawArc;
14693         else if (drawing_function == GADGET_ID_RECTANGLE)
14694           draw_func = DrawBox;
14695         else if (drawing_function == GADGET_ID_FILLED_BOX)
14696           draw_func = DrawFilledBox;
14697         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
14698           draw_func = SelectArea;
14699         else // (drawing_function == GADGET_ID_TEXT)
14700           draw_func = SetTextCursor;
14701
14702         if (button_press_event)
14703         {
14704           draw_func(sx, sy, sx, sy, new_element, FALSE);
14705           start_sx = last_sx = sx;
14706           start_sy = last_sy = sy;
14707
14708           if (drawing_function == GADGET_ID_TEXT)
14709             DrawLevelText(0, 0, 0, TEXT_END);
14710         }
14711         else if (button_release_event)
14712         {
14713           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
14714           if (drawing_function == GADGET_ID_GRAB_BRUSH)
14715           {
14716             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
14717             CopyBrushToCursor(sx, sy);
14718             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
14719                           MB_LEFTBUTTON);
14720             draw_with_brush = TRUE;
14721           }
14722           else if (drawing_function == GADGET_ID_TEXT)
14723             DrawLevelText(sx, sy, 0, TEXT_INIT);
14724           else
14725             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14726         }
14727         else if (last_sx != sx || last_sy != sy)
14728         {
14729           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
14730           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
14731             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
14732           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
14733           last_sx = sx;
14734           last_sy = sy;
14735         }
14736       }
14737       break;
14738
14739     case GADGET_ID_FLOOD_FILL:
14740       if (button_press_event && Tile[lx][ly] != new_element)
14741       {
14742         if (IS_MM_WALL_EDITOR(new_element))
14743           FloodFillWall_MM(sx2, sy2, new_element);
14744         else
14745           FloodFill(lx, ly, new_element);
14746
14747         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14748         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14749       }
14750       break;
14751
14752     case GADGET_ID_PICK_ELEMENT:
14753       if (button_release_event)
14754         ClickOnGadget(level_editor_gadget[last_drawing_function],
14755                       MB_LEFTBUTTON);
14756       else if (draw_level)
14757         PickDrawingElement(button, Tile[lx][ly]);
14758       else
14759       {
14760         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14761
14762         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
14763       }
14764
14765     default:
14766       break;
14767   }
14768
14769   // do not mark level as modified for certain non-level-changing gadgets
14770   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
14771        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
14772       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
14773       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14774     return;
14775
14776   level.changed = TRUE;
14777 }
14778
14779 static void HandleCounterButtons(struct GadgetInfo *gi)
14780 {
14781   int gadget_id = gi->custom_id;
14782   int counter_id = gi->custom_type_id;
14783   int button = gi->event.button;
14784   int *counter_value = counterbutton_info[counter_id].value;
14785   int step = BUTTON_STEPSIZE(button) *
14786     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
14787
14788   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14789   {
14790     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
14791     boolean released = (gi->event.type == GD_EVENT_RELEASED);
14792     boolean level_changed = LevelChanged();
14793
14794     if ((level_changed && pressed) || (!level_changed && released))
14795       return;
14796
14797     if (level_changed && !Request("Level has changed! Discard changes?",
14798                                   REQ_ASK))
14799     {
14800       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14801         ModifyEditorCounterValue(counter_id, *counter_value);
14802
14803       return;
14804     }
14805   }
14806
14807   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14808     *counter_value = gi->textinput.number_value;
14809   else
14810     ModifyEditorCounterValue(counter_id, *counter_value + step);
14811
14812   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14813   {
14814     int last_game_engine_type = level.game_engine_type;
14815
14816     LoadLevel(level_nr);
14817     LoadScore(level_nr);
14818
14819     SaveLevelSetup_SeriesInfo();
14820
14821     TapeErase();
14822
14823     ResetUndoBuffer();
14824     DrawEditModeWindow();
14825
14826     if (level.game_engine_type != last_game_engine_type)
14827     {
14828       // update element selection list
14829       ReinitializeElementList();
14830       ModifyEditorElementList();
14831     }
14832
14833     return;
14834   }
14835
14836   switch (counter_id)
14837   {
14838     case ED_COUNTER_ID_YAMYAM_CONTENT:
14839       DrawYamYamContentAreas();
14840       break;
14841
14842     case ED_COUNTER_ID_BALL_CONTENT:
14843       DrawMagicBallContentAreas();
14844       break;
14845
14846     case ED_COUNTER_ID_ANDROID_CONTENT:
14847       DrawAndroidElementArea();
14848       break;
14849
14850     case ED_COUNTER_ID_GROUP_CONTENT:
14851       DrawGroupElementArea();
14852       CopyGroupElementPropertiesToGame(properties_element);
14853       break;
14854
14855     case ED_COUNTER_ID_INVENTORY_SIZE:
14856       DrawPlayerInitialInventoryArea(properties_element);
14857       break;
14858
14859     case ED_COUNTER_ID_MM_BALL_CONTENT:
14860       DrawMMBallContentArea();
14861       break;
14862
14863     case ED_COUNTER_ID_ENVELOPE_XSIZE:
14864     case ED_COUNTER_ID_ENVELOPE_YSIZE:
14865       DrawEnvelopeTextArea(-1);
14866       break;
14867
14868     case ED_COUNTER_ID_LEVEL_XSIZE:
14869     case ED_COUNTER_ID_LEVEL_YSIZE:
14870       lev_fieldx = level.fieldx;
14871       lev_fieldy = level.fieldy;
14872
14873       // check if resizing of level results in change of border border
14874       SetBorderElement();
14875
14876       break;
14877
14878     default:
14879       break;
14880   }
14881
14882   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
14883        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
14884       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
14885        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
14886     CopyElementPropertiesToGame(properties_element);
14887
14888   // do not mark level as modified for certain non-level-changing gadgets
14889   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
14890        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
14891       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
14892        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
14893     return;
14894
14895   level.changed = TRUE;
14896 }
14897
14898 static void HandleTextInputGadgets(struct GadgetInfo *gi)
14899 {
14900   int type_id = gi->custom_type_id;
14901
14902   strcpy(textinput_info[type_id].value, gi->textinput.value);
14903
14904   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
14905   {
14906     CopyElementPropertiesToGame(properties_element);
14907
14908     ModifyEditorElementList();  // update changed button info text
14909   }
14910
14911   // do not mark level as modified for certain non-level-changing gadgets
14912   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
14913       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
14914     return;
14915
14916   level.changed = TRUE;
14917 }
14918
14919 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
14920 {
14921   int type_id = gi->custom_type_id;
14922
14923   strncpy(textarea_info[type_id].value, gi->textarea.value,
14924           MAX_ENVELOPE_TEXT_LEN);
14925   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
14926
14927   level.changed = TRUE;
14928 }
14929
14930 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
14931 {
14932   int type_id = gi->custom_type_id;
14933   int value_old = *selectbox_info[type_id].value;
14934   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
14935
14936   *selectbox_info[type_id].value = value_new;
14937
14938   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
14939   {
14940     DrawLevelConfigWindow();
14941   }
14942   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
14943   {
14944     element_info[properties_element].current_change_page = gi->selectbox.index;
14945
14946     DrawPropertiesWindow();
14947   }
14948   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
14949             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
14950            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
14951             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
14952            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
14953   {
14954     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
14955     {
14956       // when changing action type, also check action mode and action arg
14957       if (value_old != value_new)
14958         setSelectboxSpecialActionVariablesIfNeeded();
14959
14960       DrawPropertiesChange();
14961     }
14962
14963     CopyElementPropertiesToGame(properties_element);
14964   }
14965   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
14966   {
14967     // show or hide "engine" tabulator depending on game engine type
14968     DrawLevelConfigWindow();
14969
14970     // update element selection list depending on game engine type
14971     ReinitializeElementList();
14972     ModifyEditorElementList();
14973   }
14974   else if (type_id == ED_SELECTBOX_ID_BD_SCHEDULING_TYPE)
14975   {
14976     // update BD cycle delay counter gadgets depending on BD scheduling type
14977     DrawLevelConfigWindow();
14978   }
14979
14980   // do not mark level as modified for certain non-level-changing gadgets
14981   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
14982       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
14983     return;
14984
14985   level.changed = TRUE;
14986 }
14987
14988 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
14989 {
14990   int type_id = gi->custom_type_id;
14991   int i;
14992
14993   if (type_id >= ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST &&
14994       type_id <= ED_TAB_BUTTON_ID_LEVELCONFIG_LAST)
14995   {
14996     edit_mode_levelconfig = gi->custom_type_id;
14997
14998     DrawLevelConfigWindow();
14999   }
15000   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
15001            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
15002   {
15003     edit_mode_properties = gi->custom_type_id;
15004
15005     DrawPropertiesWindow();
15006   }
15007   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
15008            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
15009   {
15010     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
15011
15012     // backup original "level.field" (needed to track playfield changes)
15013     CopyPlayfield(level.field, TileBackup);
15014
15015     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
15016     CopyPlayfield(Tile, level.field);
15017
15018     if (new_template ||
15019         Request("Save this template and kill the old?", REQ_ASK))
15020       SaveLevelTemplate();
15021
15022     if (new_template)
15023       Request("Template saved!", REQ_CONFIRM);
15024
15025     // restore original "level.field" (needed to track playfield changes)
15026     CopyPlayfield(TileBackup, level.field);
15027   }
15028   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
15029   {
15030     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
15031
15032     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
15033         leveldir_current->readonly)
15034     {
15035       Request("This level set is read-only!", REQ_CONFIRM);
15036
15037       return;
15038     }
15039
15040     if (strEqual(levelset_name, ""))
15041     {
15042       Request("Please enter level set title!", REQ_CONFIRM);
15043
15044       return;
15045     }
15046
15047     if (strEqual(levelset_author, ""))
15048     {
15049       Request("Please enter level set author!", REQ_CONFIRM);
15050
15051       return;
15052     }
15053
15054     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
15055     {
15056       if (UpdateUserLevelSet(levelset_subdir,
15057                              levelset_name,
15058                              levelset_author,
15059                              levelset_num_levels))
15060       {
15061         Request("Level set updated!", REQ_CONFIRM);
15062       }
15063       else
15064       {
15065         Request("Updating level set failed!", REQ_CONFIRM);
15066       }
15067     }
15068     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
15069     {
15070       if (level.changed && !Request("Level has changed! Discard changes?",
15071                                      REQ_ASK))
15072         return;
15073
15074       if (CreateUserLevelSet(levelset_subdir,
15075                              levelset_name,
15076                              levelset_author,
15077                              levelset_num_levels,
15078                              levelset_use_levelset_artwork))
15079       {
15080         if (levelset_copy_level_template)
15081           CopyLevelTemplateToUserLevelSet(levelset_subdir);
15082
15083         Request("New level set created!", REQ_CONFIRM);
15084
15085         AddUserLevelSetToLevelInfo(levelset_subdir);
15086         ChangeEditorToLevelSet(levelset_subdir);
15087       }
15088       else
15089       {
15090         Request("Creating new level set failed!", REQ_CONFIRM);
15091       }
15092     }
15093   }
15094   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
15095            custom_element.num_change_pages < MAX_CHANGE_PAGES)
15096   {
15097     struct ElementInfo *ei = &element_info[properties_element];
15098
15099     // when modifying custom element, ask for copying level template
15100     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15101       return;
15102
15103     setElementChangePages(ei, ei->num_change_pages + 1);
15104
15105     // set new change page to be new current change page
15106     ei->current_change_page = ei->num_change_pages - 1;
15107     ei->change = &ei->change_page[ei->current_change_page];
15108
15109     setElementChangeInfoToDefaults(ei->change);
15110
15111     DrawPropertiesWindow();
15112
15113     level.changed = TRUE;
15114   }
15115   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
15116            custom_element.num_change_pages > MIN_CHANGE_PAGES)
15117   {
15118     struct ElementInfo *ei = &element_info[properties_element];
15119
15120     // when modifying custom element, ask for copying level template
15121     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15122       return;
15123
15124     // copy all change pages after change page to be deleted
15125     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
15126       ei->change_page[i] = ei->change_page[i + 1];
15127
15128     setElementChangePages(ei, ei->num_change_pages - 1);
15129
15130     DrawPropertiesWindow();
15131
15132     level.changed = TRUE;
15133   }
15134 }
15135
15136 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
15137 {
15138   int type_id = gi->custom_type_id;
15139
15140   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
15141       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
15142   {
15143     struct ElementInfo *ei = &element_info[properties_element];
15144     int step = BUTTON_STEPSIZE(gi->event.button);
15145
15146     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
15147     ei->current_change_page += step;
15148
15149     if (ei->current_change_page < 0)
15150       ei->current_change_page = 0;
15151     else if (ei->current_change_page >= ei->num_change_pages)
15152       ei->current_change_page = ei->num_change_pages - 1;
15153
15154     DrawPropertiesWindow();
15155   }
15156   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
15157            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15158   {
15159     struct ElementInfo *ei = &element_info[properties_element];
15160     int current_change_page = ei->current_change_page;
15161
15162     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
15163     {
15164       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
15165         ei->change_page[current_change_page];
15166     }
15167     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15168     {
15169       // when modifying custom element, ask for copying level template
15170       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15171         return;
15172
15173       ei->change_page[current_change_page] =
15174         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
15175
15176       level.changed = TRUE;
15177     }
15178
15179     DrawPropertiesWindow();
15180   }
15181 }
15182
15183 static void HandleRadiobuttons(struct GadgetInfo *gi)
15184 {
15185   int type_id = gi->custom_type_id;
15186
15187   *radiobutton_info[type_id].value =
15188     radiobutton_info[type_id].checked_value;
15189
15190   // do not mark level as modified for certain non-level-changing gadgets
15191   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
15192       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
15193     return;
15194
15195   level.changed = TRUE;
15196 }
15197
15198 static void HandleCheckbuttons(struct GadgetInfo *gi)
15199 {
15200   int type_id = gi->custom_type_id;
15201
15202   *checkbutton_info[type_id].value ^= TRUE;
15203
15204   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
15205       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
15206       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
15207       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
15208          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
15209         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
15210          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
15211        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
15212   {
15213     CopyElementPropertiesToGame(properties_element);
15214   }
15215
15216   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
15217   {
15218     UpdateCustomElementGraphicGadgets();
15219   }
15220   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
15221            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
15222   {
15223     boolean template_related_changes_found = FALSE;
15224     int i;
15225
15226     // check if any custom, group or empty elements have been changed
15227     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
15228       if ((IS_CUSTOM_ELEMENT(i) ||
15229            IS_GROUP_ELEMENT(i) ||
15230            IS_EMPTY_ELEMENT(i)) &&
15231           element_info[i].modified_settings)
15232         template_related_changes_found = TRUE;
15233
15234     if (level.use_custom_template &&
15235         !fileExists(getGlobalLevelTemplateFilename()))
15236     {
15237       Request("No level template found!", REQ_CONFIRM);
15238
15239       level.use_custom_template = FALSE;
15240
15241       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15242
15243       return;
15244     }
15245
15246     if (level.use_custom_template &&
15247         template_related_changes_found &&
15248         !Request("Discard changes and use level template?", REQ_ASK))
15249     {
15250       level.use_custom_template = FALSE;
15251
15252       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15253
15254       return;
15255     }
15256
15257     if (!level.use_custom_template &&
15258         Request("Copy settings from level template?", REQ_ASK))
15259     {
15260       return;
15261     }
15262
15263     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
15264
15265     DrawEditModeWindow();
15266   }
15267   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
15268   {
15269     if (setup.editor.use_template_for_new_levels &&
15270         !fileExists(getGlobalLevelTemplateFilename()))
15271     {
15272       Request("No level template found!", REQ_CONFIRM);
15273
15274       return;
15275     }
15276
15277     if (setup.editor.use_template_for_new_levels &&
15278         level.changed &&
15279         !Request("Discard level and load template?", REQ_ASK))
15280     {
15281       return;
15282     }
15283
15284     if (!setup.editor.use_template_for_new_levels &&
15285         level.changed &&
15286         !Request("Discard level and use empty level?", REQ_ASK))
15287     {
15288       return;
15289     }
15290
15291     LoadLevel(level_nr);
15292     LoadScore(level_nr);
15293
15294     TapeErase();
15295
15296     ResetUndoBuffer();
15297     DrawEditModeWindow();
15298   }
15299   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
15300   {
15301     SetAutomaticNumberOfGemsNeeded();
15302   }
15303
15304   // do not mark level as modified for certain non-level-changing gadgets
15305   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
15306        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
15307       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
15308        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
15309        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
15310       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
15311     return;
15312
15313   level.changed = TRUE;
15314 }
15315
15316 static void HandleControlButtons(struct GadgetInfo *gi)
15317 {
15318   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
15319   static int last_edit_mode = ED_MODE_DRAWING;
15320   static int last_custom_copy_mode = -1;
15321   static int last_button = 0;
15322   int id = gi->custom_id;
15323   int button = gi->event.button;
15324   int step = BUTTON_STEPSIZE(button);
15325   int new_element = BUTTON_ELEMENT(button);
15326   int last_properties_element = properties_element;
15327   int x, y;
15328
15329   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
15330     DrawLevelText(0, 0, 0, TEXT_END);
15331
15332   if (id < ED_NUM_CTRL1_BUTTONS &&
15333       id != GADGET_ID_SINGLE_ITEMS &&
15334       id != GADGET_ID_PICK_ELEMENT &&
15335       edit_mode != ED_MODE_DRAWING &&
15336       drawing_function != GADGET_ID_PICK_ELEMENT &&
15337       !(GetKeyModState() & KMOD_Control))
15338     ChangeEditModeWindow(ED_MODE_DRAWING);
15339
15340   // element copy mode active, but no element button pressed => deactivate
15341   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
15342     last_custom_copy_mode = -1;
15343
15344   // when showing palette on element buttons, change element of button used
15345   if (editor.palette.show_on_element_buttons &&
15346       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
15347   {
15348     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
15349
15350     id = GADGET_ID_PALETTE;
15351   }
15352
15353   switch (id)
15354   {
15355     case GADGET_ID_SCROLL_LEFT:
15356       if (level_xpos >= 0)
15357       {
15358         if (lev_fieldx < ed_fieldx - 2)
15359           break;
15360
15361         level_xpos -= step;
15362         if (level_xpos < -1)
15363           level_xpos = -1;
15364         if (button == 1)
15365           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
15366         else
15367           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15368
15369         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15370                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15371       }
15372       break;
15373
15374     case GADGET_ID_SCROLL_RIGHT:
15375       if (level_xpos <= lev_fieldx - ed_fieldx)
15376       {
15377         if (lev_fieldx < ed_fieldx - 2)
15378           break;
15379
15380         level_xpos += step;
15381         if (level_xpos > lev_fieldx - ed_fieldx + 1)
15382           level_xpos = lev_fieldx - ed_fieldx + 1;
15383         if (button == 1)
15384           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
15385         else
15386           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15387
15388         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15389                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15390       }
15391       break;
15392
15393     case GADGET_ID_SCROLL_UP:
15394       if (level_ypos >= 0)
15395       {
15396         if (lev_fieldy < ed_fieldy - 2)
15397           break;
15398
15399         level_ypos -= step;
15400         if (level_ypos < -1)
15401           level_ypos = -1;
15402         if (button == 1)
15403           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
15404         else
15405           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15406
15407         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15408                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15409       }
15410       break;
15411
15412     case GADGET_ID_SCROLL_DOWN:
15413       if (level_ypos <= lev_fieldy - ed_fieldy)
15414       {
15415         if (lev_fieldy < ed_fieldy - 2)
15416           break;
15417
15418         level_ypos += step;
15419         if (level_ypos > lev_fieldy - ed_fieldy + 1)
15420           level_ypos = lev_fieldy - ed_fieldy + 1;
15421         if (button == 1)
15422           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
15423         else
15424           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15425
15426         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15427                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15428       }
15429       break;
15430
15431     case GADGET_ID_SCROLL_HORIZONTAL:
15432       level_xpos = gi->event.item_position - 1;
15433
15434       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15435       BackToFront();
15436
15437       break;
15438
15439     case GADGET_ID_SCROLL_VERTICAL:
15440       level_ypos = gi->event.item_position - 1;
15441
15442       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15443       BackToFront();
15444
15445       break;
15446
15447     case GADGET_ID_SCROLL_LIST_UP:
15448     case GADGET_ID_SCROLL_LIST_DOWN:
15449     case GADGET_ID_SCROLL_LIST_VERTICAL:
15450       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
15451         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
15452       else
15453       {
15454         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
15455         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15456
15457         if (element_shift < 0)
15458           element_shift = 0;
15459         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15460           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15461
15462         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15463                      GDI_SCROLLBAR_ITEM_POSITION,
15464                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15465       }
15466
15467       ModifyEditorElementList();
15468
15469       break;
15470
15471     case GADGET_ID_PROPERTIES:
15472       // always switch off element properties when they are already displayed
15473       last_properties_element = new_element;
15474     case GADGET_ID_ELEMENT_LEFT:
15475     case GADGET_ID_ELEMENT_MIDDLE:
15476     case GADGET_ID_ELEMENT_RIGHT:
15477       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
15478                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
15479                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
15480                             new_element);
15481
15482       if (edit_mode != ED_MODE_PROPERTIES)
15483       {
15484         last_edit_mode = edit_mode;
15485
15486         ChangeEditModeWindow(ED_MODE_PROPERTIES);
15487
15488         last_level_drawing_function = drawing_function;
15489         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
15490                       MB_LEFTBUTTON);
15491       }
15492       else if (properties_element != last_properties_element)
15493       {
15494         DrawEditModeWindow();
15495       }
15496       else
15497       {
15498         ChangeEditModeWindow(ED_MODE_DRAWING);
15499
15500         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
15501                       MB_LEFTBUTTON);
15502       }
15503       break;
15504
15505     case GADGET_ID_PALETTE:
15506       if (edit_mode != ED_MODE_PALETTE)
15507       {
15508         last_edit_mode = edit_mode;
15509
15510         ChangeEditModeWindow(ED_MODE_PALETTE);
15511       }
15512       else
15513       {
15514         ChangeEditModeWindow(last_edit_mode);
15515       }
15516       break;
15517
15518     case GADGET_ID_WRAP_LEFT:
15519       WrapLevel(-step, 0);
15520       break;
15521
15522     case GADGET_ID_WRAP_RIGHT:
15523       WrapLevel(step, 0);
15524       break;
15525
15526     case GADGET_ID_WRAP_UP:
15527       WrapLevel(0, -step);
15528       break;
15529
15530     case GADGET_ID_WRAP_DOWN:
15531       WrapLevel(0, step);
15532       break;
15533
15534     case GADGET_ID_SINGLE_ITEMS:
15535     case GADGET_ID_CONNECTED_ITEMS:
15536     case GADGET_ID_LINE:
15537     case GADGET_ID_ARC:
15538     case GADGET_ID_TEXT:
15539     case GADGET_ID_RECTANGLE:
15540     case GADGET_ID_FILLED_BOX:
15541     case GADGET_ID_FLOOD_FILL:
15542     case GADGET_ID_GRAB_BRUSH:
15543     case GADGET_ID_PICK_ELEMENT:
15544       if (drawing_function != GADGET_ID_PICK_ELEMENT)
15545         last_drawing_function = drawing_function;
15546       drawing_function = id;
15547       draw_with_brush = FALSE;
15548       break;
15549
15550     case GADGET_ID_RANDOM_PLACEMENT:
15551       RandomPlacement(new_element);
15552       break;
15553
15554     case GADGET_ID_ZOOM:
15555       // zoom level editor tile size in or out (or reset to default size)
15556       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
15557                      button == 2 ? ed_tilesize_default :
15558                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
15559
15560       // when using touch device, cycle through all zoom tilesizes
15561       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
15562         ed_tilesize = MICRO_TILESIZE;
15563
15564       // limit zoom level by upper and lower bound
15565       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
15566
15567       InitZoomLevelSettings(ed_tilesize);
15568
15569       if (edit_mode == ED_MODE_DRAWING)
15570       {
15571         DrawDrawingWindow();
15572
15573         // redraw zoom gadget info text
15574         PrintEditorGadgetInfoText(level_editor_gadget[id]);
15575       }
15576
15577       // save current editor zoom tilesize
15578       SaveSetup_AutoSetup();
15579
15580       break;
15581
15582     case GADGET_ID_CUSTOM_COPY_FROM:
15583     case GADGET_ID_CUSTOM_COPY_TO:
15584     case GADGET_ID_CUSTOM_EXCHANGE:
15585       last_custom_copy_mode = id;
15586       last_drawing_function = drawing_function;
15587       break;
15588
15589     case GADGET_ID_CUSTOM_COPY:
15590       CopyCustomElement(properties_element, -1, id);
15591       break;
15592
15593     case GADGET_ID_CUSTOM_PASTE:
15594       CopyCustomElement(-1, properties_element, id);
15595       break;
15596
15597     case GADGET_ID_UNDO:
15598       if (button < 0)   // keep button value (even if modifier keys are pressed)
15599         button = -button;
15600       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
15601         button = 3;
15602
15603       if (button == 1 && undo_buffer_steps == 0)
15604       {
15605         Request("Undo buffer empty!", REQ_CONFIRM);
15606
15607         break;
15608       }
15609       else if (button == 2)
15610       {
15611         break;
15612       }
15613       else if (button == 3 && redo_buffer_steps == 0)
15614       {
15615         Request("Redo buffer empty!", REQ_CONFIRM);
15616
15617         break;
15618       }
15619
15620       if (edit_mode != ED_MODE_DRAWING)
15621         ChangeEditModeWindow(ED_MODE_DRAWING);
15622
15623       if (button == 1)
15624       {
15625         // undo
15626
15627         undo_buffer_position =
15628           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
15629
15630         undo_buffer_steps--;
15631         redo_buffer_steps++;
15632       }
15633       else
15634       {
15635         // redo
15636
15637         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
15638
15639         undo_buffer_steps++;
15640         redo_buffer_steps--;
15641       }
15642
15643       for (x = 0; x < lev_fieldx; x++)
15644         for (y = 0; y < lev_fieldy; y++)
15645           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
15646
15647       // check if undo operation forces change of border style
15648       CheckLevelBorderElement(FALSE);
15649
15650       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15651
15652       break;
15653
15654     case GADGET_ID_CONF:
15655       if (edit_mode != ED_MODE_LEVELCONFIG)
15656       {
15657         last_edit_mode = edit_mode;
15658
15659         ChangeEditModeWindow(ED_MODE_LEVELCONFIG);
15660       }
15661       else
15662       {
15663         ChangeEditModeWindow(ED_MODE_DRAWING);
15664       }
15665       break;
15666
15667     case GADGET_ID_CLEAR:
15668       if (edit_mode != ED_MODE_DRAWING)
15669         ChangeEditModeWindow(ED_MODE_DRAWING);
15670
15671       for (x = 0; x < MAX_LEV_FIELDX; x++)
15672         for (y = 0; y < MAX_LEV_FIELDY; y++)
15673           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
15674
15675       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
15676
15677       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15678       break;
15679
15680     case GADGET_ID_SAVE:
15681     {
15682       // saving read-only levels into personal level set modifies global vars
15683       // "leveldir_current" and "level_nr"; restore them after saving level
15684       LevelDirTree *leveldir_former = leveldir_current;
15685       int level_nr_former = level_nr;
15686       char *level_filename;
15687       boolean new_level;
15688
15689       if (leveldir_current->readonly &&
15690           !PrepareSavingIntoPersonalLevelSet())
15691         break;
15692
15693       level_filename = getDefaultLevelFilename(level_nr);
15694       new_level = !fileExists(level_filename);
15695
15696       if (new_level ||
15697           Request("Save this level and kill the old?", REQ_ASK))
15698       {
15699         if (leveldir_former->readonly)
15700           ModifyLevelConfigForSavingIntoPersonalLevelSet(leveldir_former->name);
15701
15702         SetAutomaticNumberOfGemsNeeded();
15703
15704         CopyPlayfield(Tile, level.field);
15705         SaveLevel(level_nr);
15706
15707         level.changed = FALSE;
15708
15709         if (new_level)
15710         {
15711           char level_saved_msg[64];
15712
15713           if (leveldir_former->readonly)
15714             sprintf(level_saved_msg,
15715                     "Level saved as level %d into personal level set!",
15716                     level_nr);
15717           else
15718             strcpy(level_saved_msg, "Level saved!");
15719
15720           Request(level_saved_msg, REQ_CONFIRM);
15721         }
15722       }
15723
15724       // "cd" back to copied-from levelset (in case of saved read-only level)
15725       leveldir_current = leveldir_former;
15726       level_nr = level_nr_former;
15727
15728       break;
15729     }
15730
15731     case GADGET_ID_TEST:
15732       if (LevelChanged())
15733         level.game_version = GAME_VERSION_ACTUAL;
15734
15735       CopyPlayfield(level.field, TileBackup);
15736       CopyPlayfield(Tile, level.field);
15737
15738       CopyNativeLevel_RND_to_Native(&level);
15739
15740       UnmapLevelEditorGadgets();
15741       UndrawSpecialEditorDoor();
15742
15743       CloseDoor(DOOR_CLOSE_ALL);
15744
15745       // needed before playing if editor playfield area has different size
15746       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
15747
15748       // redraw_mask = REDRAW_ALL;
15749
15750       level_editor_test_game = TRUE;
15751
15752       StartGameActions(FALSE, setup.autorecord, level.random_seed);
15753
15754       break;
15755
15756     case GADGET_ID_EXIT:
15757       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
15758       break;
15759
15760     default:
15761       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
15762           id <= GADGET_ID_ELEMENTLIST_LAST)
15763       {
15764         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
15765
15766         new_element = editor_elements[element_position + element_shift];
15767
15768         if (IS_EDITOR_CASCADE(new_element))
15769         {
15770           int i;
15771
15772           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
15773           {
15774             int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
15775             boolean *cascade_value = editor_elements_info[i].setup_cascade_value;
15776
15777             if (*cascade_element == new_element)
15778             {
15779               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
15780               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
15781
15782               // update element selection list
15783               ReinitializeElementList();
15784               ModifyEditorElementList();
15785
15786               // update cascading gadget info text
15787               PrintEditorGadgetInfoText(level_editor_gadget[id]);
15788
15789               // save current editor cascading state
15790               SaveSetup_EditorCascade();
15791
15792               break;
15793             }
15794           }
15795
15796           break;
15797         }
15798
15799         if (last_custom_copy_mode != -1)
15800         {
15801           if (CopyCustomElement(properties_element, new_element,
15802                                 last_custom_copy_mode))
15803           {
15804             ClickOnGadget(level_editor_gadget[last_drawing_function],
15805                           MB_LEFTBUTTON);
15806
15807             last_custom_copy_mode = -1;
15808           }
15809
15810           break;
15811         }
15812
15813         // change element of button used to show palette
15814         if (editor.palette.show_on_element_buttons)
15815           button = last_button;
15816
15817         PickDrawingElement(button, new_element);
15818
15819         if (!stick_element_properties_window &&
15820             drawing_function != GADGET_ID_PICK_ELEMENT &&
15821             !(GetKeyModState() & KMOD_Control))
15822         {
15823           properties_element = new_element;
15824           if (edit_mode == ED_MODE_PROPERTIES)
15825             DrawPropertiesWindow();
15826         }
15827
15828         if (drawing_function == GADGET_ID_PICK_ELEMENT)
15829           ClickOnGadget(level_editor_gadget[last_drawing_function],
15830                         MB_LEFTBUTTON);
15831
15832         if (!use_permanent_palette)
15833           ChangeEditModeWindow(last_edit_mode);
15834       }
15835 #ifdef DEBUG
15836       else if (gi->event.type == GD_EVENT_PRESSED)
15837         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
15838       else if (gi->event.type == GD_EVENT_RELEASED)
15839         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
15840       else if (gi->event.type == GD_EVENT_MOVING)
15841         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
15842       else
15843         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
15844 #endif
15845       break;
15846   }
15847 }
15848
15849 void HandleLevelEditorKeyInput(Key key)
15850 {
15851   char letter = getCharFromKey(key);
15852
15853   if (drawing_function == GADGET_ID_TEXT &&
15854       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
15855   {
15856     if (letter)
15857       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
15858     else if (key == KSYM_Delete || key == KSYM_BackSpace)
15859       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
15860     else if (key == KSYM_Return)
15861       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
15862     else if (key == KSYM_Escape)
15863       DrawLevelText(0, 0, 0, TEXT_END);
15864
15865     return;
15866   }
15867
15868   int id = GADGET_ID_NONE;
15869   int new_element_shift = element_shift;
15870   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
15871   int button = MB_LEFTBUTTON;
15872   int i;
15873
15874   switch (key)
15875   {
15876     case KSYM_Left:
15877       id = GADGET_ID_SCROLL_LEFT;
15878       break;
15879     case KSYM_Right:
15880       id = GADGET_ID_SCROLL_RIGHT;
15881       break;
15882     case KSYM_Up:
15883       id = GADGET_ID_SCROLL_UP;
15884       break;
15885     case KSYM_Down:
15886       id = GADGET_ID_SCROLL_DOWN;
15887       break;
15888
15889     case KSYM_Page_Up:
15890     case KSYM_Page_Down:
15891       step *= (key == KSYM_Page_Up ? -1 : +1);
15892       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15893
15894       if (element_shift < 0)
15895         element_shift = 0;
15896       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15897         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15898
15899       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15900                    GDI_SCROLLBAR_ITEM_POSITION,
15901                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15902
15903       ModifyEditorElementList();
15904
15905       break;
15906
15907     case KSYM_Home:
15908     case KSYM_End:
15909       element_shift = (key == KSYM_Home ? 0 :
15910                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
15911
15912       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15913                    GDI_SCROLLBAR_ITEM_POSITION,
15914                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15915
15916       ModifyEditorElementList();
15917
15918       break;
15919
15920     case KSYM_Insert:
15921     case KSYM_Delete:
15922
15923       // this is needed to prevent interference with running "True X-Mouse"
15924       if (GetKeyModStateFromEvents() & KMOD_Control)
15925         break;
15926
15927       // check for last or next editor cascade block in element list
15928       for (i = 0; i < num_editor_elements; i++)
15929       {
15930         if ((key == KSYM_Insert && i == element_shift) ||
15931             (key == KSYM_Delete && new_element_shift > element_shift))
15932           break;
15933
15934         // jump to next cascade block (or to start of element list)
15935         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
15936           new_element_shift = i;
15937       }
15938
15939       if (i < num_editor_elements)
15940         element_shift = new_element_shift;
15941
15942       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15943         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15944
15945       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15946                    GDI_SCROLLBAR_ITEM_POSITION,
15947                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15948
15949       ModifyEditorElementList();
15950
15951       break;
15952
15953     case KSYM_Escape:
15954       if (edit_mode == ED_MODE_DRAWING)
15955         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
15956       else if (edit_mode == ED_MODE_LEVELCONFIG)
15957         HandleControlButtons(level_editor_gadget[GADGET_ID_CONF]);
15958       else if (edit_mode == ED_MODE_PROPERTIES)
15959         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
15960       else if (edit_mode == ED_MODE_PALETTE)
15961         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
15962       else              // should never happen
15963         ChangeEditModeWindow(ED_MODE_DRAWING);
15964
15965       break;
15966
15967     default:
15968       break;
15969   }
15970
15971   if (id != GADGET_ID_NONE)
15972     ClickOnGadget(level_editor_gadget[id], button);
15973   else if (letter == '1' || letter == '?')
15974     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
15975   else if (letter == '2')
15976     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
15977   else if (letter == '3')
15978     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
15979   else if (letter == '.')
15980     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
15981   else if (letter == 'U')
15982     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
15983   else if (letter == '-' || key == KSYM_KP_Subtract)
15984     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
15985   else if (letter == '0' || key == KSYM_KP_0)
15986     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
15987   else if (letter == '+' || key == KSYM_KP_Add ||
15988            letter == '=')       // ("Shift-=" is "+" on US keyboards)
15989     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
15990   else if (key == KSYM_Return ||
15991            key == KSYM_space ||
15992            key == setup.shortcut.toggle_pause)
15993     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
15994   else
15995     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
15996       if (letter && letter == controlbutton_info[i].shortcut)
15997         if (!anyTextGadgetActive())
15998           ClickOnGadget(level_editor_gadget[i], button);
15999
16000   if (draw_with_brush)
16001   {
16002     if (letter == 'x')
16003       FlipBrushX();
16004     else if (letter == 'y')
16005       FlipBrushY();
16006     else if (letter == 'z')
16007       RotateBrush();
16008   }
16009 }
16010
16011 static void HandleLevelEditorIdle_Properties(void)
16012 {
16013   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
16014   int x = editor.settings.element_graphic.x + element_border;
16015   int y = editor.settings.element_graphic.y + element_border;
16016   static DelayCounter action_delay = { 0 };
16017   int i;
16018
16019   action_delay.value = GameFrameDelay;
16020
16021   if (!DelayReached(&action_delay))
16022     return;
16023
16024   for (i = 0; i < ED_NUM_SELECTBOX; i++)
16025   {
16026     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
16027
16028     if (gi->mapped && gi->active && gi->selectbox.open)
16029       return;
16030   }
16031
16032   DrawEditorElementAnimation(SX + x, SY + y);
16033
16034   redraw_mask |= REDRAW_FIELD;
16035
16036   FrameCounter++;       // increase animation frame counter
16037 }
16038
16039 static void HandleLevelEditorIdle_Drawing(void)
16040 {
16041   static boolean last_highlighted = FALSE;
16042   static boolean last_highlighted_similar = FALSE;
16043   boolean highlighted = (GetKeyModState() & KMOD_Alt);
16044   boolean highlighted_similar = (GetKeyModState() & KMOD_Shift);
16045
16046   if (highlighted != last_highlighted ||
16047       (highlighted && highlighted_similar != last_highlighted_similar))
16048   {
16049     DrawAreaElementHighlight(highlighted, highlighted_similar);
16050
16051     redraw_mask |= REDRAW_FIELD;
16052   }
16053
16054   last_highlighted = highlighted;
16055   last_highlighted_similar = highlighted_similar;
16056 }
16057
16058 void HandleLevelEditorIdle(void)
16059 {
16060   if (edit_mode == ED_MODE_PROPERTIES)
16061     HandleLevelEditorIdle_Properties();
16062   else if (edit_mode == ED_MODE_DRAWING)
16063     HandleLevelEditorIdle_Drawing();
16064 }
16065
16066 static void ClearEditorGadgetInfoText(void)
16067 {
16068   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
16069 }
16070
16071 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
16072 {
16073   char infotext[MAX_OUTPUT_LINESIZE + 1];
16074   int max_infotext_len = getMaxInfoTextLength();
16075
16076   if (gi == NULL || strlen(gi->info_text) == 0)
16077     return;
16078
16079   strncpy(infotext, gi->info_text, max_infotext_len);
16080   infotext[max_infotext_len] = '\0';
16081
16082   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
16083   {
16084     int key = controlbutton_info[gi->custom_id].shortcut;
16085
16086     if (key)
16087     {
16088       char shortcut[MAX_OUTPUT_LINESIZE + 1];
16089
16090       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
16091         sprintf(shortcut, " ('.' or '%c')", key);
16092       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
16093         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
16094       else if (gi->custom_id == GADGET_ID_TEST)
16095         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
16096       else if (gi->custom_id == GADGET_ID_UNDO)
16097         sprintf(shortcut, " ('%c/Shift-U')", key);
16098       else if (gi->custom_id == GADGET_ID_ZOOM)
16099         sprintf(shortcut, " ('%c', '0', '-')", key);
16100       else
16101         sprintf(shortcut, " ('%s%c')",
16102                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
16103
16104       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
16105         strcat(infotext, shortcut);
16106     }
16107   }
16108
16109   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
16110 }
16111
16112 void HandleEditorGadgetInfoText(void *ptr)
16113 {
16114   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
16115
16116   if (game_status != GAME_MODE_EDITOR)
16117     return;
16118
16119   ClearEditorGadgetInfoText();
16120
16121   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
16122     return;
16123
16124   // misuse this function to delete brush cursor, if needed
16125   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
16126     DeleteBrushFromCursor();
16127
16128   PrintEditorGadgetInfoText(gi);
16129 }
16130
16131 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
16132 {
16133   int id = gi->custom_id;
16134   int type_id = gi->custom_type_id;
16135   int sx = gi->event.x;
16136   int sy = gi->event.y;
16137   int lx = sx + level_xpos;
16138   int ly = sy + level_ypos;
16139   int min_sx = 0, min_sy = 0;
16140   int max_sx = gi->drawing.area_xsize - 1;
16141   int max_sy = gi->drawing.area_ysize - 1;
16142   int actual_drawing_function = drawing_function;
16143   int max_infotext_len = getMaxInfoTextLength();
16144   char infotext[MAX_OUTPUT_LINESIZE + 1];
16145
16146   infotext[0] = '\0';           // start with empty info text
16147
16148   // pressed Control key: simulate picking element
16149   if (GetKeyModState() & KMOD_Control)
16150     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
16151
16152   ClearEditorGadgetInfoText();
16153
16154   if (gi->event.type == GD_EVENT_INFO_LEAVING)
16155     return;
16156
16157   // make sure to stay inside drawing area boundaries
16158   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
16159   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
16160
16161   if (id == GADGET_ID_DRAWING_LEVEL)
16162   {
16163     if (button_status)
16164     {
16165       int min_lx = 0, min_ly = 0;
16166       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
16167
16168       // get positions inside level field
16169       lx = sx + level_xpos;
16170       ly = sy + level_ypos;
16171
16172       // make sure to stay inside level field boundaries
16173       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
16174       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
16175
16176       // correct drawing area positions accordingly
16177       sx = lx - level_xpos;
16178       sy = ly - level_ypos;
16179     }
16180
16181     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16182     {
16183       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
16184       {
16185         static int start_lx = 0;
16186         static int start_ly = 0;
16187         char *text;
16188
16189         if (gi->event.type == GD_EVENT_PRESSED)
16190         {
16191           start_lx = lx;
16192           start_ly = ly;
16193         }
16194
16195         switch (actual_drawing_function)
16196         {
16197           case GADGET_ID_SINGLE_ITEMS:
16198             text = "Drawing single items";
16199             break;
16200           case GADGET_ID_CONNECTED_ITEMS:
16201             text = "Drawing connected items";
16202             break;
16203           case GADGET_ID_LINE:
16204             text = "Drawing line";
16205             break;
16206           case GADGET_ID_ARC:
16207             text = "Drawing arc";
16208             break;
16209           case GADGET_ID_TEXT:
16210             text = "Setting text cursor";
16211             break;
16212           case GADGET_ID_RECTANGLE:
16213             text = "Drawing rectangle";
16214             break;
16215           case GADGET_ID_FILLED_BOX:
16216             text = "Drawing filled box";
16217             break;
16218           case GADGET_ID_FLOOD_FILL:
16219             text = "Flood fill";
16220             break;
16221           case GADGET_ID_GRAB_BRUSH:
16222             text = "Grabbing brush";
16223             break;
16224           case GADGET_ID_PICK_ELEMENT:
16225             text = "Picking element";
16226             break;
16227
16228           default:
16229             text = "Drawing position";
16230             break;
16231         }
16232
16233         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16234           sprintf(infotext, "%s: %d, %d", text, lx, ly);
16235         else
16236           sprintf(infotext, "%s: %d, %d", text,
16237                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
16238       }
16239       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16240         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
16241       else
16242         sprintf(infotext, "Level position: %d, %d", lx, ly);
16243     }
16244
16245     // misuse this function to draw brush cursor, if needed
16246     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
16247     {
16248       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16249         CopyBrushToCursor(sx, sy);
16250       else
16251         DeleteBrushFromCursor();
16252     }
16253
16254     if (!draw_with_brush)
16255       UpdateBrushPosition(sx, sy);
16256   }
16257   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16258   {
16259     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
16260     int element = drawingarea_info[type_id].value[pos];
16261
16262     strncpy(infotext, getElementInfoText(element), max_infotext_len);
16263   }
16264   else
16265   {
16266     if (id == GADGET_ID_CUSTOM_CONTENT)
16267       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
16268     else if (id == GADGET_ID_GROUP_CONTENT)
16269       sprintf(infotext, "group element position: %d", sx + 1);
16270     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
16271              id <= GADGET_ID_YAMYAM_CONTENT_7)
16272       sprintf(infotext, "content area %d position: %d, %d",
16273               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
16274     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
16275              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
16276       sprintf(infotext, "content area %d position: %d, %d",
16277               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
16278     else if (id == GADGET_ID_ANDROID_CONTENT)
16279       sprintf(infotext, "android element position: %d", sx + 1);
16280     else if (drawingarea_info[type_id].infotext != NULL)
16281       strcpy(infotext, drawingarea_info[type_id].infotext);
16282   }
16283
16284   infotext[max_infotext_len] = '\0';
16285
16286   if (strlen(infotext) > 0)
16287     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
16288 }
16289
16290 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
16291                             boolean quick_quit)
16292 {
16293   if (!ask_if_level_has_changed ||
16294       !LevelChanged() ||
16295       Request("Level has changed! Exit without saving?",
16296               REQ_ASK | REQ_STAY_OPEN))
16297   {
16298     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
16299     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
16300
16301     // draw normal door
16302     UndrawSpecialEditorDoor();
16303
16304     // use door animation if door 1 viewport is unchanged and contains toolbox
16305     if (useEditorDoorAnimation())
16306       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
16307
16308     // close editor doors if viewport definition is the same as in main menu
16309     if (vp_door_1->x      == DX     &&
16310         vp_door_1->y      == DY     &&
16311         vp_door_1->width  == DXSIZE &&
16312         vp_door_1->height == DYSIZE &&
16313         vp_door_2->x      == VX     &&
16314         vp_door_2->y      == VY     &&
16315         vp_door_2->width  == VXSIZE &&
16316         vp_door_2->height == VYSIZE)
16317       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
16318     else
16319       SetDoorState(DOOR_CLOSE_ALL);
16320
16321     BackToFront();
16322
16323     if (quick_quit)
16324       FadeSkipNextFadeIn();
16325
16326     SetGameStatus(GAME_MODE_MAIN);
16327
16328     DrawMainMenu();
16329   }
16330   else
16331   {
16332     if (!global.use_envelope_request)
16333     {
16334       CloseDoor(DOOR_CLOSE_1);
16335       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
16336     }
16337   }
16338 }