src/editor.c

   1 // ============================================================================
   2 // Rocks'n'Diamonds - McDuffin Strikes Back!
   3 // ----------------------------------------------------------------------------
   4 // (c) 1995-2014 by Artsoft Entertainment
   5 //                  Holger Schemel
   6 //                  info@artsoft.org
   7 //                  https://www.artsoft.org/
   8 // ----------------------------------------------------------------------------
   9 // editor.c
  10 // ============================================================================
  11
  12 #include <math.h>
  13
  14 #include "libgame/libgame.h"
  15
  16 #include "editor.h"
  17 #include "screens.h"
  18 #include "tools.h"
  19 #include "files.h"
  20 #include "game.h"
  21 #include "init.h"
  22 #include "tape.h"
  23
  24
  25 #define INFOTEXT_UNKNOWN_ELEMENT        "unknown"
  26
  27
  28 // ----------------------------------------------------------------------------
  29 // screen and artwork graphic pixel position definitions
  30 // ----------------------------------------------------------------------------
  31
  32 // values for the control window
  33 #define ED_CTRL1_BUTTONS_HORIZ          4       // toolbox
  34 #define ED_CTRL1_BUTTONS_VERT           4
  35 #define ED_CTRL2_BUTTONS_HORIZ          3       // level
  36 #define ED_CTRL2_BUTTONS_VERT           2
  37 #define ED_CTRL3_BUTTONS_HORIZ          3       // CE and GE
  38 #define ED_CTRL3_BUTTONS_VERT           1
  39 #define ED_CTRL4_BUTTONS_HORIZ          2       // CE and GE
  40 #define ED_CTRL4_BUTTONS_VERT           1
  41 #define ED_CTRL5_BUTTONS_HORIZ          1       // properties
  42 #define ED_CTRL5_BUTTONS_VERT           1
  43 #define ED_CTRL6_BUTTONS_HORIZ          3       // properties
  44 #define ED_CTRL6_BUTTONS_VERT           1
  45 #define ED_CTRL7_BUTTONS_HORIZ          1       // palette
  46 #define ED_CTRL7_BUTTONS_VERT           1
  47
  48 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  49 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  50 #define ED_NUM_CTRL3_BUTTONS   (ED_CTRL3_BUTTONS_HORIZ * ED_CTRL3_BUTTONS_VERT)
  51 #define ED_NUM_CTRL4_BUTTONS   (ED_CTRL4_BUTTONS_HORIZ * ED_CTRL4_BUTTONS_VERT)
  52 #define ED_NUM_CTRL5_BUTTONS   (ED_CTRL5_BUTTONS_HORIZ * ED_CTRL5_BUTTONS_VERT)
  53 #define ED_NUM_CTRL6_BUTTONS   (ED_CTRL6_BUTTONS_HORIZ * ED_CTRL6_BUTTONS_VERT)
  54 #define ED_NUM_CTRL7_BUTTONS   (ED_CTRL7_BUTTONS_HORIZ * ED_CTRL7_BUTTONS_VERT)
  55 #define ED_NUM_CTRL1_2_BUTTONS (ED_NUM_CTRL1_BUTTONS   + ED_NUM_CTRL2_BUTTONS)
  56 #define ED_NUM_CTRL1_3_BUTTONS (ED_NUM_CTRL1_2_BUTTONS + ED_NUM_CTRL3_BUTTONS)
  57 #define ED_NUM_CTRL1_4_BUTTONS (ED_NUM_CTRL1_3_BUTTONS + ED_NUM_CTRL4_BUTTONS)
  58 #define ED_NUM_CTRL1_5_BUTTONS (ED_NUM_CTRL1_4_BUTTONS + ED_NUM_CTRL5_BUTTONS)
  59 #define ED_NUM_CTRL1_6_BUTTONS (ED_NUM_CTRL1_5_BUTTONS + ED_NUM_CTRL6_BUTTONS)
  60 #define ED_NUM_CTRL1_7_BUTTONS (ED_NUM_CTRL1_6_BUTTONS + ED_NUM_CTRL7_BUTTONS)
  61 #define ED_NUM_CTRL_BUTTONS    ED_NUM_CTRL1_7_BUTTONS
  62
  63 // values for the element list
  64 #define ED_ELEMENTLIST_XPOS             (editor.palette.x)
  65 #define ED_ELEMENTLIST_YPOS             (editor.palette.y)
  66 #define ED_ELEMENTLIST_XSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].width)
  67 #define ED_ELEMENTLIST_YSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].height)
  68 #define ED_ELEMENTLIST_COLS             MAX(1, editor.palette.cols)
  69 #define ED_ELEMENTLIST_ROWS             MAX(1, editor.palette.rows)
  70 #define ED_ELEMENTLIST_BUTTONS_HORIZ    (ED_ELEMENTLIST_COLS)
  71 #define ED_ELEMENTLIST_BUTTONS_VERT     (ED_ELEMENTLIST_ROWS)
  72 #define ED_NUM_ELEMENTLIST_BUTTONS      (ED_ELEMENTLIST_BUTTONS_HORIZ * \
  73                                          ED_ELEMENTLIST_BUTTONS_VERT)
  74
  75 // standard distances
  76 #define ED_GADGET_NORMAL_DISTANCE       (editor.gadget.normal_spacing)
  77 #define ED_GADGET_SMALL_DISTANCE        (editor.gadget.small_spacing)
  78 #define ED_GADGET_TINY_DISTANCE         (editor.gadget.tiny_spacing)
  79 #define ED_GADGET_LINE_DISTANCE         (editor.gadget.line_spacing)
  80 #define ED_GADGET_TEXT_DISTANCE         (editor.gadget.text_spacing)
  81 #define ED_TAB_BAR_HEIGHT               (editor.gadget.separator_line.height)
  82 #define ED_DRAWINGAREA_TEXT_DISTANCE    (ED_GADGET_TEXT_DISTANCE +      \
  83                                          ED_DRAWINGAREA_BORDER_SIZE)
  84 #define ED_GADGET_SPACE_DISTANCE        (getFontWidth(FONT_TEXT_1))
  85
  86 // values for drawingarea gadgets
  87 #define IMG_BORDER_1                    IMG_EDITOR_ELEMENT_BORDER
  88 #define IMG_BORDER_2                    IMG_EDITOR_ELEMENT_BORDER_INPUT
  89 #define ED_ELEMENT_BORDER               (graphic_info[IMG_BORDER_1].border_size)
  90 #define ED_DRAWINGAREA_BORDER_SIZE      (graphic_info[IMG_BORDER_2].border_size)
  91 #define ED_DRAWINGAREA_TILE_SIZE        (editor.drawingarea.tile_size)
  92
  93 // values for checkbutton gadgets
  94 #define ED_CHECKBUTTON_XSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].width)
  95 #define ED_CHECKBUTTON_YSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].height)
  96
  97 #define ED_TABBUTTON_XSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].width)
  98 #define ED_TABBUTTON_YSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].height)
  99
 100 #define ED_SETTINGS_LEVEL_TABS_X        (editor.settings.tabs.x)
 101 #define ED_SETTINGS_LEVEL_TABS_Y        (editor.settings.tabs.y)
 102 #define ED_SETTINGS_ELEMENT_TABS_X      (editor.settings.tabs.x)
 103 #define ED_SETTINGS_ELEMENT_TABS_Y      (editor.settings.tabs.y +       \
 104                                          editor.settings.tabs.yoffset2)
 105
 106 #define ED_SETTINGS_TABS_XOFFSET        (editor.settings.tabs.draw_xoffset)
 107 #define ED_SETTINGS_TABS_YOFFSET        (editor.settings.tabs.draw_yoffset)
 108
 109 #define ED_LEVEL_TABS_XSTART            (ED_SETTINGS_LEVEL_TABS_X)
 110 #define ED_LEVEL_TABS_YSTART            (ED_SETTINGS_LEVEL_TABS_Y)
 111 #define ED_LEVEL_SETTINGS_XSTART        (ED_SETTINGS_LEVEL_TABS_X +     \
 112                                          ED_SETTINGS_TABS_XOFFSET)
 113 #define ED_LEVEL_SETTINGS_YSTART        (ED_SETTINGS_LEVEL_TABS_Y +     \
 114                                          ED_TABBUTTON_YSIZE +           \
 115                                          ED_GADGET_TINY_DISTANCE +      \
 116                                          ED_TAB_BAR_HEIGHT +            \
 117                                          ED_SETTINGS_TABS_YOFFSET +     \
 118                                          getFontHeight(FONT_TEXT_1) +   \
 119                                          ED_GADGET_TEXT_DISTANCE)
 120 #define ED_ELEMENT_TABS_XSTART          (ED_SETTINGS_ELEMENT_TABS_X)
 121 #define ED_ELEMENT_TABS_YSTART          (ED_SETTINGS_ELEMENT_TABS_Y)
 122 #define ED_ELEMENT_SETTINGS_XSTART      (ED_SETTINGS_ELEMENT_TABS_X +   \
 123                                          ED_SETTINGS_TABS_XOFFSET)
 124 #define ED_ELEMENT_SETTINGS_YSTART      (ED_SETTINGS_ELEMENT_TABS_Y +   \
 125                                          ED_TABBUTTON_YSIZE +           \
 126                                          ED_GADGET_TINY_DISTANCE +      \
 127                                          ED_TAB_BAR_HEIGHT +            \
 128                                          ED_SETTINGS_TABS_YOFFSET)
 129
 130 #define ED_SETTINGS_XOFFSET             (ED_CHECKBUTTON_XSIZE +         \
 131                                          ED_GADGET_TEXT_DISTANCE)
 132 #define ED_SETTINGS_YOFFSET             (ED_CHECKBUTTON_YSIZE +         \
 133                                          ED_GADGET_LINE_DISTANCE)
 134
 135 #define ED_POS_RANGE                    (10000)
 136 #define ED_POS_LEVEL_TABS_FIRST         (1 * ED_POS_RANGE)
 137 #define ED_POS_LEVEL_TABS_LAST          (2 * ED_POS_RANGE - 1)
 138 #define ED_POS_LEVEL_SETTINGS_FIRST     (2 * ED_POS_RANGE)
 139 #define ED_POS_LEVEL_SETTINGS_LAST      (3 * ED_POS_RANGE - 1)
 140 #define ED_POS_ELEMENT_TABS_FIRST       (3 * ED_POS_RANGE)
 141 #define ED_POS_ELEMENT_TABS_LAST        (4 * ED_POS_RANGE - 1)
 142 #define ED_POS_ELEMENT_SETTINGS_FIRST   (4 * ED_POS_RANGE)
 143 #define ED_POS_ELEMENT_SETTINGS_LAST    (5 * ED_POS_RANGE - 1)
 144
 145 #define ED_LEVEL_TABS_XPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 146 #define ED_LEVEL_TABS_YPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 147
 148 #define ED_LEVEL_SETTINGS_XPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 149 #define ED_LEVEL_SETTINGS_YPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 150
 151 #define ED_ELEMENT_TABS_XPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 152 #define ED_ELEMENT_TABS_YPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 153
 154 #define ED_ELEMENT_SETTINGS_XPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 155 #define ED_ELEMENT_SETTINGS_YPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 156
 157 #define IS_POS_LEVEL_TABS(n)          ((n) >= ED_POS_LEVEL_TABS_FIRST && \
 158                                        (n) <= ED_POS_LEVEL_TABS_LAST)
 159 #define IS_POS_LEVEL_SETTINGS(n)      ((n) >= ED_POS_LEVEL_SETTINGS_FIRST && \
 160                                        (n) <= ED_POS_LEVEL_SETTINGS_LAST)
 161 #define IS_POS_ELEMENT_TABS(n)        ((n) >= ED_POS_ELEMENT_TABS_FIRST && \
 162                                        (n) <= ED_POS_ELEMENT_TABS_LAST)
 163 #define IS_POS_ELEMENT_SETTINGS(n)    ((n) >= ED_POS_ELEMENT_SETTINGS_FIRST && \
 164                                        (n) <= ED_POS_ELEMENT_SETTINGS_LAST)
 165
 166 #define ED_LEVEL_TABS_LINE(n)           ((n) - ED_POS_LEVEL_TABS_FIRST)
 167 #define ED_LEVEL_SETTINGS_LINE(n)       ((n) - ED_POS_LEVEL_SETTINGS_FIRST)
 168 #define ED_ELEMENT_TABS_LINE(n)         ((n) - ED_POS_ELEMENT_TABS_FIRST)
 169 #define ED_ELEMENT_SETTINGS_LINE(n)     ((n) - ED_POS_ELEMENT_SETTINGS_FIRST)
 170
 171 #define ED_LEVEL_TABS_X(n)              (ED_LEVEL_TABS_XSTART + \
 172                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 173 #define ED_LEVEL_TABS_Y(n)              (ED_LEVEL_TABS_YSTART + \
 174                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 175
 176 #define ED_LEVEL_SETTINGS_X(n)          (ED_LEVEL_SETTINGS_XSTART +     \
 177                                          (n) * ED_SETTINGS_XOFFSET)
 178 #define ED_LEVEL_SETTINGS_Y(n)          (ED_LEVEL_SETTINGS_YSTART +     \
 179                                          (n) * ED_SETTINGS_YOFFSET)
 180
 181 #define ED_ELEMENT_TABS_X(n)            (ED_ELEMENT_TABS_XSTART +       \
 182                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 183 #define ED_ELEMENT_TABS_Y(n)            (ED_ELEMENT_TABS_YSTART +       \
 184                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 185
 186 #define ED_ELEMENT_SETTINGS_X(n)        (ED_ELEMENT_SETTINGS_XSTART +   \
 187                                          (n) * ED_SETTINGS_XOFFSET)
 188 #define ED_ELEMENT_SETTINGS_Y(n)        (ED_ELEMENT_SETTINGS_YSTART +   \
 189                                          (n) * ED_SETTINGS_YOFFSET)
 190
 191 #define ED_POS_TO_LEVEL_TABS_X(n)       \
 192   (ED_LEVEL_TABS_X(ED_LEVEL_TABS_LINE(n)))
 193 #define ED_POS_TO_LEVEL_TABS_Y(n)       \
 194   (ED_LEVEL_TABS_Y(ED_LEVEL_TABS_LINE(n)))
 195
 196 #define ED_POS_TO_LEVEL_SETTINGS_X(n)   \
 197   (ED_LEVEL_SETTINGS_X(ED_LEVEL_SETTINGS_LINE(n)))
 198 #define ED_POS_TO_LEVEL_SETTINGS_Y(n)   \
 199   (ED_LEVEL_SETTINGS_Y(ED_LEVEL_SETTINGS_LINE(n)))
 200
 201 #define ED_POS_TO_ELEMENT_TABS_X(n)     \
 202   (ED_ELEMENT_TABS_X(ED_ELEMENT_TABS_LINE(n)))
 203 #define ED_POS_TO_ELEMENT_TABS_Y(n)     \
 204   (ED_ELEMENT_TABS_Y(ED_ELEMENT_TABS_LINE(n)))
 205
 206 #define ED_POS_TO_ELEMENT_SETTINGS_X(n) \
 207   (ED_ELEMENT_SETTINGS_X(ED_ELEMENT_SETTINGS_LINE(n)))
 208 #define ED_POS_TO_ELEMENT_SETTINGS_Y(n) \
 209   (ED_ELEMENT_SETTINGS_Y(ED_ELEMENT_SETTINGS_LINE(n)))
 210
 211 #define ED_SETTINGS_X(n)                (IS_POS_LEVEL_TABS(n) ? \
 212                                          ED_POS_TO_LEVEL_TABS_X(n) : \
 213                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 214                                          ED_POS_TO_LEVEL_SETTINGS_X(n) : \
 215                                          IS_POS_ELEMENT_TABS(n) ?       \
 216                                          ED_POS_TO_ELEMENT_TABS_X(n) : \
 217                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 218                                          ED_POS_TO_ELEMENT_SETTINGS_X(n) : (n))
 219 #define ED_SETTINGS_Y(n)                (IS_POS_LEVEL_TABS(n) ? \
 220                                          ED_POS_TO_LEVEL_TABS_Y(n) : \
 221                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 222                                          ED_POS_TO_LEVEL_SETTINGS_Y(n) : \
 223                                          IS_POS_ELEMENT_TABS(n) ?       \
 224                                          ED_POS_TO_ELEMENT_TABS_Y(n) : \
 225                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 226                                          ED_POS_TO_ELEMENT_SETTINGS_Y(n) : (n))
 227
 228 #define ED_SETTINGS_XOFF(n)             (5 * ((n) % 4) *                \
 229                                          ED_DRAWINGAREA_TILE_SIZE)
 230 #define ED_SETTINGS_YOFF(n)             (5 * ((n) / 4) *                \
 231                                          ED_DRAWINGAREA_TILE_SIZE)
 232
 233 #define ED_AREA_XOFFSET_1(n)            ((n) != 0 ?                     \
 234                                          ED_DRAWINGAREA_BORDER_SIZE : 0)
 235 #define ED_AREA_YOFFSET_1(n)            ((n) != 0 ?                     \
 236                                          (ED_CHECKBUTTON_YSIZE -        \
 237                                           ED_DRAWINGAREA_TILE_SIZE) / 2 : 0)
 238
 239 #define ED_AREA_XOFFSET_2(n)      (0)
 240 #define ED_AREA_YOFFSET_2(n)      ((n) == 3 ?                   \
 241                                    ((n) - 1) * ED_DRAWINGAREA_TILE_SIZE / 2 : 0)
 242
 243 #define ED_AREA_SETTINGS_X(i)      (ED_SETTINGS_X((i).x) +              \
 244                                     ED_SETTINGS_XOFF((i).xoffset) +     \
 245                                     ED_AREA_XOFFSET_1((i).x) -          \
 246                                     ED_AREA_XOFFSET_2((i).area_xsize))
 247 #define ED_AREA_SETTINGS_Y(i)      (ED_SETTINGS_Y((i).y) +              \
 248                                     ED_SETTINGS_YOFF((i).yoffset) +     \
 249                                     ED_AREA_YOFFSET_1((i).y) -          \
 250                                     ED_AREA_YOFFSET_2((i).area_ysize))
 251
 252 // values for element content drawing areas
 253 #define ED_AREA_1X1_LSETTINGS_XPOS(n)   ED_LEVEL_SETTINGS_XPOS(n)
 254 #define ED_AREA_1X1_LSETTINGS_YPOS(n)   ED_LEVEL_SETTINGS_YPOS(n)
 255 #define ED_AREA_1X1_LSETTINGS_XOFF      (0)
 256 #define ED_AREA_1X1_LSETTINGS_YOFF      (0)
 257
 258 #define ED_AREA_1X1_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 259 #define ED_AREA_1X1_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 260 #define ED_AREA_1X1_SETTINGS_XOFF       (0)
 261 #define ED_AREA_1X1_SETTINGS_YOFF       (0)
 262
 263 #define ED_AREA_3X3_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 264 #define ED_AREA_3X3_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 265 #define ED_AREA_3X3_SETTINGS_XOFF       (0)
 266 #define ED_AREA_3X3_SETTINGS_YOFF       (0)
 267
 268 // element content
 269 #define ED_AREA_ELEMENT_CONTENT_XOFF(n) (n)
 270 #define ED_AREA_ELEMENT_CONTENT_YOFF(n) (n)
 271
 272 // yamyam content
 273 #define ED_XPOS_YAM                     0
 274 #define ED_YPOS_YAM                     5
 275 #define ED_AREA_YAMYAM_CONTENT_XPOS     ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_YAM)
 276 #define ED_AREA_YAMYAM_CONTENT_YPOS     ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_YAM)
 277 #define ED_AREA_YAMYAM_CONTENT_XOFF(n)  ED_AREA_ELEMENT_CONTENT_XOFF(n)
 278 #define ED_AREA_YAMYAM_CONTENT_YOFF(n)  ED_AREA_ELEMENT_CONTENT_YOFF(n)
 279 #define ED_AREA_YAMYAM_CONTENT_X(n)     (ED_ELEMENT_SETTINGS_X(ED_XPOS_YAM) + \
 280                                          ED_SETTINGS_XOFF(n))
 281 #define ED_AREA_YAMYAM_CONTENT_Y(n)     (ED_ELEMENT_SETTINGS_Y(ED_YPOS_YAM) + \
 282                                          ED_SETTINGS_YOFF(n) +          \
 283                                          ED_AREA_YOFFSET_1(ED_YPOS_YAM) - \
 284                                          ED_AREA_YOFFSET_2(3))
 285
 286 // magic ball content
 287 #define ED_XPOS_BALL                    0
 288 #define ED_YPOS_BALL                    6
 289 #define ED_AREA_MAGIC_BALL_CONTENT_XPOS ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_BALL)
 290 #define ED_AREA_MAGIC_BALL_CONTENT_YPOS ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_BALL)
 291 #define ED_AREA_MAGIC_BALL_CONTENT_XOFF(n) ED_AREA_ELEMENT_CONTENT_XOFF(n)
 292 #define ED_AREA_MAGIC_BALL_CONTENT_YOFF(n) ED_AREA_ELEMENT_CONTENT_YOFF(n)
 293 #define ED_AREA_MAGIC_BALL_CONTENT_X(n) (ED_ELEMENT_SETTINGS_X(ED_XPOS_BALL) + \
 294                                          ED_SETTINGS_XOFF(n))
 295 #define ED_AREA_MAGIC_BALL_CONTENT_Y(n) (ED_ELEMENT_SETTINGS_Y(ED_YPOS_BALL) + \
 296                                          ED_SETTINGS_YOFF(n) +          \
 297                                          ED_AREA_YOFFSET_1(ED_YPOS_BALL) - \
 298                                          ED_AREA_YOFFSET_2(3))
 299
 300 // values for scrolling gadgets for drawing area
 301 #define ED_SCROLLBUTTON_XSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].width)
 302 #define ED_SCROLLBUTTON_YSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].height)
 303
 304 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 305 #define ED_SCROLL_UP_YPOS               (0)
 306 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 307 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 308 #define ED_SCROLL_LEFT_XPOS             (0)
 309 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 310 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 311 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 312 #define ED_SCROLL_HORIZONTAL_XPOS       (ED_SCROLL_LEFT_XPOS +          \
 313                                          ED_SCROLLBUTTON_XSIZE)
 314 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 315 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 316 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 317 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 318 #define ED_SCROLL_VERTICAL_YPOS         (ED_SCROLL_UP_YPOS +            \
 319                                          ED_SCROLLBUTTON_YSIZE)
 320 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 321 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 322
 323 // values for scrolling gadgets for element list
 324 #define ED_SCROLLBUTTON2_XSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].width)
 325 #define ED_SCROLLBUTTON2_YSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].height)
 326
 327 #define ED_SCROLL2_UP_XPOS              (ED_ELEMENTLIST_XPOS +          \
 328                                          ED_ELEMENTLIST_BUTTONS_HORIZ * \
 329                                          ED_ELEMENTLIST_XSIZE)
 330 #define ED_SCROLL2_UP_YPOS              ED_ELEMENTLIST_YPOS
 331 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 332 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS +           \
 333                                          ED_ELEMENTLIST_BUTTONS_VERT *  \
 334                                          ED_ELEMENTLIST_YSIZE -         \
 335                                          ED_SCROLLBUTTON2_YSIZE)
 336 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 337 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS +           \
 338                                          ED_SCROLLBUTTON2_YSIZE)
 339 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 340 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT *  \
 341                                          ED_ELEMENTLIST_YSIZE -         \
 342                                          2 * ED_SCROLLBUTTON2_YSIZE)
 343
 344 // values for ClearEditorGadgetInfoText() and HandleEditorGadgetInfoText()
 345 #define INFOTEXT_FONT           FONT_TEXT_2
 346 #define INFOTEXT_XSIZE          SXSIZE
 347 #define INFOTEXT_YSIZE          getFontHeight(INFOTEXT_FONT)
 348 #define INFOTEXT_YSIZE_FULL     (INFOTEXT_YSIZE + ED_GADGET_SMALL_DISTANCE)
 349 #define INFOTEXT_X              (editor.settings.tooltip.x)
 350 #define INFOTEXT_Y              (editor.settings.tooltip.y)
 351 #define INFOTEXT_XY_REDEFINED   (INFOTEXT_X != -1 || INFOTEXT_Y != -1)
 352 #define INFOTEXT_XPOS           SX + (INFOTEXT_XY_REDEFINED ? INFOTEXT_X : 0)
 353 #define INFOTEXT_YPOS           SY + (INFOTEXT_XY_REDEFINED ? INFOTEXT_Y : \
 354                                       SYSIZE - INFOTEXT_YSIZE)
 355
 356
 357 // ----------------------------------------------------------------------------
 358 // editor gadget definitions
 359 // ----------------------------------------------------------------------------
 360
 361 enum
 362 {
 363   GADGET_ID_NONE = -1,
 364
 365   // drawing toolbox buttons
 366
 367   GADGET_ID_SINGLE_ITEMS,
 368   GADGET_ID_CONNECTED_ITEMS,
 369   GADGET_ID_LINE,
 370   GADGET_ID_ARC,
 371   GADGET_ID_RECTANGLE,
 372   GADGET_ID_FILLED_BOX,
 373   GADGET_ID_WRAP_UP,
 374   GADGET_ID_TEXT,
 375   GADGET_ID_FLOOD_FILL,
 376   GADGET_ID_WRAP_LEFT,
 377   GADGET_ID_ZOOM,
 378   GADGET_ID_WRAP_RIGHT,
 379   GADGET_ID_RANDOM_PLACEMENT,
 380   GADGET_ID_GRAB_BRUSH,
 381   GADGET_ID_WRAP_DOWN,
 382   GADGET_ID_PICK_ELEMENT,
 383
 384   GADGET_ID_UNDO,
 385   GADGET_ID_CONF,
 386   GADGET_ID_SAVE,
 387   GADGET_ID_CLEAR,
 388   GADGET_ID_TEST,
 389   GADGET_ID_EXIT,
 390
 391   GADGET_ID_CUSTOM_COPY_FROM,
 392   GADGET_ID_CUSTOM_COPY_TO,
 393   GADGET_ID_CUSTOM_EXCHANGE,
 394   GADGET_ID_CUSTOM_COPY,
 395   GADGET_ID_CUSTOM_PASTE,
 396
 397   GADGET_ID_PROPERTIES,
 398   GADGET_ID_ELEMENT_LEFT,
 399   GADGET_ID_ELEMENT_MIDDLE,
 400   GADGET_ID_ELEMENT_RIGHT,
 401   GADGET_ID_PALETTE,
 402
 403   // counter gadget identifiers
 404
 405   GADGET_ID_SELECT_LEVEL_DOWN,
 406   GADGET_ID_SELECT_LEVEL_TEXT,
 407   GADGET_ID_SELECT_LEVEL_UP,
 408   GADGET_ID_LEVEL_XSIZE_DOWN,
 409   GADGET_ID_LEVEL_XSIZE_TEXT,
 410   GADGET_ID_LEVEL_XSIZE_UP,
 411   GADGET_ID_LEVEL_YSIZE_DOWN,
 412   GADGET_ID_LEVEL_YSIZE_TEXT,
 413   GADGET_ID_LEVEL_YSIZE_UP,
 414   GADGET_ID_LEVEL_RANDOM_DOWN,
 415   GADGET_ID_LEVEL_RANDOM_TEXT,
 416   GADGET_ID_LEVEL_RANDOM_UP,
 417   GADGET_ID_LEVEL_GEMSLIMIT_DOWN,
 418   GADGET_ID_LEVEL_GEMSLIMIT_TEXT,
 419   GADGET_ID_LEVEL_GEMSLIMIT_UP,
 420   GADGET_ID_LEVEL_TIMELIMIT_DOWN,
 421   GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 422   GADGET_ID_LEVEL_TIMELIMIT_UP,
 423   GADGET_ID_LEVEL_TIMESCORE_DOWN,
 424   GADGET_ID_LEVEL_TIMESCORE_TEXT,
 425   GADGET_ID_LEVEL_TIMESCORE_UP,
 426   GADGET_ID_LEVEL_RANDOM_SEED_DOWN,
 427   GADGET_ID_LEVEL_RANDOM_SEED_TEXT,
 428   GADGET_ID_LEVEL_RANDOM_SEED_UP,
 429   GADGET_ID_LEVELSET_NUM_LEVELS_DOWN,
 430   GADGET_ID_LEVELSET_NUM_LEVELS_TEXT,
 431   GADGET_ID_LEVELSET_NUM_LEVELS_UP,
 432   GADGET_ID_BD_CYCLE_DELAY_MS_DOWN,
 433   GADGET_ID_BD_CYCLE_DELAY_MS_TEXT,
 434   GADGET_ID_BD_CYCLE_DELAY_MS_UP,
 435   GADGET_ID_BD_CYCLE_DELAY_C64_DOWN,
 436   GADGET_ID_BD_CYCLE_DELAY_C64_TEXT,
 437   GADGET_ID_BD_CYCLE_DELAY_C64_UP,
 438   GADGET_ID_BD_HATCHING_DELAY_CYCLES_DOWN,
 439   GADGET_ID_BD_HATCHING_DELAY_CYCLES_TEXT,
 440   GADGET_ID_BD_HATCHING_DELAY_CYCLES_UP,
 441   GADGET_ID_BD_HATCHING_DELAY_SECONDS_DOWN,
 442   GADGET_ID_BD_HATCHING_DELAY_SECONDS_TEXT,
 443   GADGET_ID_BD_HATCHING_DELAY_SECONDS_UP,
 444   GADGET_ID_BD_PUSHING_PROB_DOWN,
 445   GADGET_ID_BD_PUSHING_PROB_TEXT,
 446   GADGET_ID_BD_PUSHING_PROB_UP,
 447   GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_DOWN,
 448   GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_TEXT,
 449   GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_UP,
 450   GADGET_ID_ELEMENT_VALUE1_DOWN,
 451   GADGET_ID_ELEMENT_VALUE1_TEXT,
 452   GADGET_ID_ELEMENT_VALUE1_UP,
 453   GADGET_ID_ELEMENT_VALUE2_DOWN,
 454   GADGET_ID_ELEMENT_VALUE2_TEXT,
 455   GADGET_ID_ELEMENT_VALUE2_UP,
 456   GADGET_ID_ELEMENT_VALUE3_DOWN,
 457   GADGET_ID_ELEMENT_VALUE3_TEXT,
 458   GADGET_ID_ELEMENT_VALUE3_UP,
 459   GADGET_ID_ELEMENT_VALUE4_DOWN,
 460   GADGET_ID_ELEMENT_VALUE4_TEXT,
 461   GADGET_ID_ELEMENT_VALUE4_UP,
 462   GADGET_ID_YAMYAM_CONTENT_DOWN,
 463   GADGET_ID_YAMYAM_CONTENT_TEXT,
 464   GADGET_ID_YAMYAM_CONTENT_UP,
 465   GADGET_ID_BALL_CONTENT_DOWN,
 466   GADGET_ID_BALL_CONTENT_TEXT,
 467   GADGET_ID_BALL_CONTENT_UP,
 468   GADGET_ID_ANDROID_CONTENT_DOWN,
 469   GADGET_ID_ANDROID_CONTENT_TEXT,
 470   GADGET_ID_ANDROID_CONTENT_UP,
 471   GADGET_ID_ENVELOPE_XSIZE_DOWN,
 472   GADGET_ID_ENVELOPE_XSIZE_TEXT,
 473   GADGET_ID_ENVELOPE_XSIZE_UP,
 474   GADGET_ID_ENVELOPE_YSIZE_DOWN,
 475   GADGET_ID_ENVELOPE_YSIZE_TEXT,
 476   GADGET_ID_ENVELOPE_YSIZE_UP,
 477   GADGET_ID_INVENTORY_SIZE_DOWN,
 478   GADGET_ID_INVENTORY_SIZE_TEXT,
 479   GADGET_ID_INVENTORY_SIZE_UP,
 480   GADGET_ID_MM_BALL_CONTENT_DOWN,
 481   GADGET_ID_MM_BALL_CONTENT_TEXT,
 482   GADGET_ID_MM_BALL_CONTENT_UP,
 483   GADGET_ID_CUSTOM_SCORE_DOWN,
 484   GADGET_ID_CUSTOM_SCORE_TEXT,
 485   GADGET_ID_CUSTOM_SCORE_UP,
 486   GADGET_ID_CUSTOM_GEMCOUNT_DOWN,
 487   GADGET_ID_CUSTOM_GEMCOUNT_TEXT,
 488   GADGET_ID_CUSTOM_GEMCOUNT_UP,
 489   GADGET_ID_CUSTOM_VALUE_FIX_DOWN,
 490   GADGET_ID_CUSTOM_VALUE_FIX_TEXT,
 491   GADGET_ID_CUSTOM_VALUE_FIX_UP,
 492   GADGET_ID_CUSTOM_VALUE_RND_DOWN,
 493   GADGET_ID_CUSTOM_VALUE_RND_TEXT,
 494   GADGET_ID_CUSTOM_VALUE_RND_UP,
 495   GADGET_ID_PUSH_DELAY_FIX_DOWN,
 496   GADGET_ID_PUSH_DELAY_FIX_TEXT,
 497   GADGET_ID_PUSH_DELAY_FIX_UP,
 498   GADGET_ID_PUSH_DELAY_RND_DOWN,
 499   GADGET_ID_PUSH_DELAY_RND_TEXT,
 500   GADGET_ID_PUSH_DELAY_RND_UP,
 501   GADGET_ID_DROP_DELAY_FIX_DOWN,
 502   GADGET_ID_DROP_DELAY_FIX_TEXT,
 503   GADGET_ID_DROP_DELAY_FIX_UP,
 504   GADGET_ID_DROP_DELAY_RND_DOWN,
 505   GADGET_ID_DROP_DELAY_RND_TEXT,
 506   GADGET_ID_DROP_DELAY_RND_UP,
 507   GADGET_ID_MOVE_DELAY_FIX_DOWN,
 508   GADGET_ID_MOVE_DELAY_FIX_TEXT,
 509   GADGET_ID_MOVE_DELAY_FIX_UP,
 510   GADGET_ID_MOVE_DELAY_RND_DOWN,
 511   GADGET_ID_MOVE_DELAY_RND_TEXT,
 512   GADGET_ID_MOVE_DELAY_RND_UP,
 513   GADGET_ID_STEP_DELAY_FIX_DOWN,
 514   GADGET_ID_STEP_DELAY_FIX_TEXT,
 515   GADGET_ID_STEP_DELAY_FIX_UP,
 516   GADGET_ID_STEP_DELAY_RND_DOWN,
 517   GADGET_ID_STEP_DELAY_RND_TEXT,
 518   GADGET_ID_STEP_DELAY_RND_UP,
 519   GADGET_ID_EXPLOSION_DELAY_DOWN,
 520   GADGET_ID_EXPLOSION_DELAY_TEXT,
 521   GADGET_ID_EXPLOSION_DELAY_UP,
 522   GADGET_ID_IGNITION_DELAY_DOWN,
 523   GADGET_ID_IGNITION_DELAY_TEXT,
 524   GADGET_ID_IGNITION_DELAY_UP,
 525   GADGET_ID_CHANGE_DELAY_FIX_DOWN,
 526   GADGET_ID_CHANGE_DELAY_FIX_TEXT,
 527   GADGET_ID_CHANGE_DELAY_FIX_UP,
 528   GADGET_ID_CHANGE_DELAY_RND_DOWN,
 529   GADGET_ID_CHANGE_DELAY_RND_TEXT,
 530   GADGET_ID_CHANGE_DELAY_RND_UP,
 531   GADGET_ID_CHANGE_CONT_RND_DOWN,
 532   GADGET_ID_CHANGE_CONT_RND_TEXT,
 533   GADGET_ID_CHANGE_CONT_RND_UP,
 534   GADGET_ID_GROUP_CONTENT_DOWN,
 535   GADGET_ID_GROUP_CONTENT_TEXT,
 536   GADGET_ID_GROUP_CONTENT_UP,
 537
 538   // drawing area identifiers
 539
 540   GADGET_ID_DRAWING_LEVEL,
 541   GADGET_ID_YAMYAM_CONTENT_0,
 542   GADGET_ID_YAMYAM_CONTENT_1,
 543   GADGET_ID_YAMYAM_CONTENT_2,
 544   GADGET_ID_YAMYAM_CONTENT_3,
 545   GADGET_ID_YAMYAM_CONTENT_4,
 546   GADGET_ID_YAMYAM_CONTENT_5,
 547   GADGET_ID_YAMYAM_CONTENT_6,
 548   GADGET_ID_YAMYAM_CONTENT_7,
 549   GADGET_ID_MAGIC_BALL_CONTENT_0,
 550   GADGET_ID_MAGIC_BALL_CONTENT_1,
 551   GADGET_ID_MAGIC_BALL_CONTENT_2,
 552   GADGET_ID_MAGIC_BALL_CONTENT_3,
 553   GADGET_ID_MAGIC_BALL_CONTENT_4,
 554   GADGET_ID_MAGIC_BALL_CONTENT_5,
 555   GADGET_ID_MAGIC_BALL_CONTENT_6,
 556   GADGET_ID_MAGIC_BALL_CONTENT_7,
 557   GADGET_ID_ANDROID_CONTENT,
 558   GADGET_ID_AMOEBA_CONTENT,
 559   GADGET_ID_BD_AMOEBA_CONTENT_TOO_BIG,
 560   GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED,
 561   GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
 562   GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
 563   GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
 564   GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
 565   GADGET_ID_START_ELEMENT,
 566   GADGET_ID_ARTWORK_ELEMENT,
 567   GADGET_ID_EXPLOSION_ELEMENT,
 568   GADGET_ID_INVENTORY_CONTENT,
 569   GADGET_ID_MM_BALL_CONTENT,
 570   GADGET_ID_CUSTOM_GRAPHIC,
 571   GADGET_ID_CUSTOM_CONTENT,
 572   GADGET_ID_CUSTOM_MOVE_ENTER,
 573   GADGET_ID_CUSTOM_MOVE_LEAVE,
 574   GADGET_ID_CUSTOM_CHANGE_TARGET,
 575   GADGET_ID_CUSTOM_CHANGE_CONTENT,
 576   GADGET_ID_CUSTOM_CHANGE_TRIGGER,
 577   GADGET_ID_CUSTOM_CHANGE_ACTION,
 578   GADGET_ID_GROUP_CONTENT,
 579   GADGET_ID_RANDOM_BACKGROUND,
 580
 581   // text input identifiers
 582
 583   GADGET_ID_LEVEL_NAME,
 584   GADGET_ID_LEVEL_AUTHOR,
 585   GADGET_ID_LEVELSET_NAME,
 586   GADGET_ID_LEVELSET_AUTHOR,
 587   GADGET_ID_ELEMENT_NAME,
 588
 589   // text area identifiers
 590
 591   GADGET_ID_ENVELOPE_INFO,
 592
 593   // selectbox identifiers
 594
 595   GADGET_ID_TIME_OR_STEPS,
 596   GADGET_ID_TIME_SCORE_BASE,
 597   GADGET_ID_GAME_ENGINE_TYPE,
 598   GADGET_ID_BD_SCHEDULING_TYPE,
 599   GADGET_ID_LEVELSET_SAVE_MODE,
 600   GADGET_ID_WIND_DIRECTION,
 601   GADGET_ID_PLAYER_SPEED,
 602   GADGET_ID_MM_BALL_CHOICE_MODE,
 603   GADGET_ID_CUSTOM_WALK_TO_ACTION,
 604   GADGET_ID_CUSTOM_EXPLOSION_TYPE,
 605   GADGET_ID_CUSTOM_DEADLINESS,
 606   GADGET_ID_CUSTOM_MOVE_PATTERN,
 607   GADGET_ID_CUSTOM_MOVE_DIRECTION,
 608   GADGET_ID_CUSTOM_MOVE_STEPSIZE,
 609   GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
 610   GADGET_ID_CUSTOM_SMASH_TARGETS,
 611   GADGET_ID_CUSTOM_SLIPPERY_TYPE,
 612   GADGET_ID_CUSTOM_ACCESS_TYPE,
 613   GADGET_ID_CUSTOM_ACCESS_LAYER,
 614   GADGET_ID_CUSTOM_ACCESS_PROTECTED,
 615   GADGET_ID_CUSTOM_ACCESS_DIRECTION,
 616   GADGET_ID_CHANGE_TIME_UNITS,
 617   GADGET_ID_CHANGE_DIRECT_ACTION,
 618   GADGET_ID_CHANGE_OTHER_ACTION,
 619   GADGET_ID_CHANGE_SIDE,
 620   GADGET_ID_CHANGE_PLAYER,
 621   GADGET_ID_CHANGE_PAGE,
 622   GADGET_ID_CHANGE_REPLACE_WHEN,
 623   GADGET_ID_ACTION_TYPE,
 624   GADGET_ID_ACTION_MODE,
 625   GADGET_ID_ACTION_ARG,
 626   GADGET_ID_SELECT_CHANGE_PAGE,
 627   GADGET_ID_GROUP_CHOICE_MODE,
 628
 629   // textbutton identifiers
 630
 631   GADGET_ID_LEVELCONFIG_LEVEL,
 632   GADGET_ID_LEVELCONFIG_LEVELSET,
 633   GADGET_ID_LEVELCONFIG_EDITOR,
 634   GADGET_ID_LEVELCONFIG_ENGINE,
 635   GADGET_ID_PROPERTIES_INFO,
 636   GADGET_ID_PROPERTIES_CONFIG,
 637   GADGET_ID_PROPERTIES_CONFIG_1,
 638   GADGET_ID_PROPERTIES_CONFIG_2,
 639   GADGET_ID_PROPERTIES_CHANGE,
 640   GADGET_ID_SAVE_AS_TEMPLATE_1,
 641   GADGET_ID_SAVE_AS_TEMPLATE_2,
 642   GADGET_ID_SAVE_LEVELSET,
 643   GADGET_ID_ADD_CHANGE_PAGE,
 644   GADGET_ID_DEL_CHANGE_PAGE,
 645
 646   // graphicbutton identifiers
 647
 648   GADGET_ID_PREV_CHANGE_PAGE,
 649   GADGET_ID_NEXT_CHANGE_PAGE,
 650   GADGET_ID_COPY_CHANGE_PAGE,
 651   GADGET_ID_PASTE_CHANGE_PAGE,
 652
 653   // gadgets for scrolling of drawing area
 654
 655   GADGET_ID_SCROLL_UP,
 656   GADGET_ID_SCROLL_DOWN,
 657   GADGET_ID_SCROLL_LEFT,
 658   GADGET_ID_SCROLL_RIGHT,
 659   GADGET_ID_SCROLL_HORIZONTAL,
 660   GADGET_ID_SCROLL_VERTICAL,
 661
 662   // gadgets for scrolling element list
 663
 664   GADGET_ID_SCROLL_LIST_UP,
 665   GADGET_ID_SCROLL_LIST_DOWN,
 666   GADGET_ID_SCROLL_LIST_VERTICAL,
 667
 668   // checkbuttons/radiobuttons for level/element properties
 669
 670   GADGET_ID_AUTO_COUNT_GEMS,
 671   GADGET_ID_RATE_TIME_OVER_SCORE,
 672   GADGET_ID_USE_LEVELSET_ARTWORK,
 673   GADGET_ID_COPY_LEVEL_TEMPLATE,
 674   GADGET_ID_RANDOM_PERCENTAGE,
 675   GADGET_ID_RANDOM_QUANTITY,
 676   GADGET_ID_RANDOM_RESTRICTED,
 677   GADGET_ID_BD_INTERMISSION,
 678   GADGET_ID_BD_PAL_TIMING,
 679   GADGET_ID_BD_LINE_SHIFTING_BORDERS,
 680   GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW,
 681   GADGET_ID_BD_SHORT_EXPLOSIONS,
 682   GADGET_ID_BD_GRAVITY_AFFECTS_ALL,
 683   GADGET_ID_STICK_ELEMENT,
 684   GADGET_ID_EM_SLIPPERY_GEMS,
 685   GADGET_ID_EM_EXPLODES_BY_FIRE,
 686   GADGET_ID_USE_SPRING_BUG,
 687   GADGET_ID_USE_TIME_ORB_BUG,
 688   GADGET_ID_USE_LIFE_BUGS,
 689   GADGET_ID_RANDOM_BALL_CONTENT,
 690   GADGET_ID_INITIAL_BALL_ACTIVE,
 691   GADGET_ID_GROW_INTO_DIGGABLE,
 692   GADGET_ID_SB_FIELDS_NEEDED,
 693   GADGET_ID_SB_OBJECTS_NEEDED,
 694   GADGET_ID_AUTO_EXIT_SOKOBAN,
 695   GADGET_ID_SOLVED_BY_ONE_PLAYER,
 696   GADGET_ID_FINISH_DIG_COLLECT,
 697   GADGET_ID_KEEP_WALKABLE_CE,
 698   GADGET_ID_CONTINUOUS_SNAPPING,
 699   GADGET_ID_BLOCK_SNAP_FIELD,
 700   GADGET_ID_BLOCK_LAST_FIELD,
 701   GADGET_ID_SP_BLOCK_LAST_FIELD,
 702   GADGET_ID_INSTANT_RELOCATION,
 703   GADGET_ID_SHIFTED_RELOCATION,
 704   GADGET_ID_LAZY_RELOCATION,
 705   GADGET_ID_USE_START_ELEMENT,
 706   GADGET_ID_USE_ARTWORK_ELEMENT,
 707   GADGET_ID_USE_EXPLOSION_ELEMENT,
 708   GADGET_ID_INITIAL_GRAVITY,
 709   GADGET_ID_USE_INITIAL_INVENTORY,
 710   GADGET_ID_CAN_PASS_TO_WALKABLE,
 711   GADGET_ID_CAN_FALL_INTO_ACID,
 712   GADGET_ID_CAN_MOVE_INTO_ACID,
 713   GADGET_ID_DONT_COLLIDE_WITH,
 714   GADGET_ID_BD_DIAGONAL_MOVEMENTS,
 715   GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE,
 716   GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
 717   GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING,
 718   GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
 719   GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
 720   GADGET_ID_BD_AMOEBA_START_IMMEDIATELY,
 721   GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
 722   GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS,
 723   GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER,
 724   GADGET_ID_BD_VOODOO_DIES_BY_ROCK,
 725   GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
 726   GADGET_ID_ENVELOPE_AUTOWRAP,
 727   GADGET_ID_ENVELOPE_CENTERED,
 728   GADGET_ID_MM_LASER_RED,
 729   GADGET_ID_MM_LASER_GREEN,
 730   GADGET_ID_MM_LASER_BLUE,
 731   GADGET_ID_DF_LASER_RED,
 732   GADGET_ID_DF_LASER_GREEN,
 733   GADGET_ID_DF_LASER_BLUE,
 734   GADGET_ID_ROTATE_MM_BALL_CONTENT,
 735   GADGET_ID_EXPLODE_MM_BALL,
 736   GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 737   GADGET_ID_CUSTOM_CAN_EXPLODE,
 738   GADGET_ID_CUSTOM_EXPLODE_FIRE,
 739   GADGET_ID_CUSTOM_EXPLODE_SMASH,
 740   GADGET_ID_CUSTOM_EXPLODE_IMPACT,
 741   GADGET_ID_CUSTOM_WALK_TO_OBJECT,
 742   GADGET_ID_CUSTOM_DEADLY,
 743   GADGET_ID_CUSTOM_CAN_MOVE,
 744   GADGET_ID_CUSTOM_CAN_FALL,
 745   GADGET_ID_CUSTOM_CAN_SMASH,
 746   GADGET_ID_CUSTOM_SLIPPERY,
 747   GADGET_ID_CUSTOM_ACCESSIBLE,
 748   GADGET_ID_CUSTOM_GRAV_REACHABLE,
 749   GADGET_ID_CUSTOM_USE_LAST_VALUE,
 750   GADGET_ID_CUSTOM_USE_GRAPHIC,
 751   GADGET_ID_CUSTOM_USE_TEMPLATE_1,
 752   GADGET_ID_CUSTOM_USE_TEMPLATE_2,
 753   GADGET_ID_CUSTOM_USE_TEMPLATE_3,
 754   GADGET_ID_CUSTOM_CAN_CHANGE,
 755   GADGET_ID_CHANGE_USE_CONTENT,
 756   GADGET_ID_CHANGE_USE_EXPLOSION,
 757   GADGET_ID_CHANGE_ONLY_COMPLETE,
 758   GADGET_ID_CHANGE_USE_RANDOM,
 759   GADGET_ID_CHANGE_HAS_ACTION,
 760   GADGET_ID_CHANGE_DELAY,
 761   GADGET_ID_CHANGE_BY_DIRECT_ACT,
 762   GADGET_ID_CHANGE_BY_OTHER_ACT,
 763
 764   NUM_STATIC_GADGET_IDS
 765 };
 766
 767 // gadgets for buttons in element list (dynamic)
 768 #define GADGET_ID_ELEMENTLIST_FIRST     (NUM_STATIC_GADGET_IDS)
 769 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 770                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 771
 772 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 773
 774 // radio button numbers
 775 enum
 776 {
 777   RADIO_NR_NONE,
 778   RADIO_NR_DRAWING_TOOLBOX,
 779   RADIO_NR_RANDOM_ELEMENTS
 780 };
 781
 782 // values for counter gadgets
 783 enum
 784 {
 785   ED_COUNTER_ID_SELECT_LEVEL,
 786   ED_COUNTER_ID_LEVEL_XSIZE,
 787   ED_COUNTER_ID_LEVEL_YSIZE,
 788   ED_COUNTER_ID_LEVEL_GEMSLIMIT,
 789   ED_COUNTER_ID_LEVEL_TIMELIMIT,
 790   ED_COUNTER_ID_LEVEL_TIMESCORE,
 791   ED_COUNTER_ID_LEVEL_RANDOM_SEED,
 792   ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
 793   ED_COUNTER_ID_LEVEL_RANDOM,
 794   ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
 795   ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
 796   ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
 797   ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
 798   ED_COUNTER_ID_BD_PUSHING_PROB,
 799   ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
 800   ED_COUNTER_ID_ELEMENT_VALUE1,
 801   ED_COUNTER_ID_ELEMENT_VALUE2,
 802   ED_COUNTER_ID_ELEMENT_VALUE3,
 803   ED_COUNTER_ID_ELEMENT_VALUE4,
 804   ED_COUNTER_ID_YAMYAM_CONTENT,
 805   ED_COUNTER_ID_BALL_CONTENT,
 806   ED_COUNTER_ID_ANDROID_CONTENT,
 807   ED_COUNTER_ID_ENVELOPE_XSIZE,
 808   ED_COUNTER_ID_ENVELOPE_YSIZE,
 809   ED_COUNTER_ID_INVENTORY_SIZE,
 810   ED_COUNTER_ID_MM_BALL_CONTENT,
 811   ED_COUNTER_ID_CUSTOM_SCORE,
 812   ED_COUNTER_ID_CUSTOM_GEMCOUNT,
 813   ED_COUNTER_ID_CUSTOM_VALUE_FIX,
 814   ED_COUNTER_ID_CUSTOM_VALUE_RND,
 815   ED_COUNTER_ID_PUSH_DELAY_FIX,
 816   ED_COUNTER_ID_PUSH_DELAY_RND,
 817   ED_COUNTER_ID_DROP_DELAY_FIX,
 818   ED_COUNTER_ID_DROP_DELAY_RND,
 819   ED_COUNTER_ID_MOVE_DELAY_FIX,
 820   ED_COUNTER_ID_MOVE_DELAY_RND,
 821   ED_COUNTER_ID_STEP_DELAY_FIX,
 822   ED_COUNTER_ID_STEP_DELAY_RND,
 823   ED_COUNTER_ID_EXPLOSION_DELAY,
 824   ED_COUNTER_ID_IGNITION_DELAY,
 825   ED_COUNTER_ID_GROUP_CONTENT,
 826   ED_COUNTER_ID_CHANGE_DELAY_FIX,
 827   ED_COUNTER_ID_CHANGE_DELAY_RND,
 828   ED_COUNTER_ID_CHANGE_CONT_RND,
 829
 830   ED_NUM_COUNTERBUTTONS
 831 };
 832
 833 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 834 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 835 #define ED_COUNTER_ID_LEVELSET_FIRST    ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 836 #define ED_COUNTER_ID_LEVELSET_LAST     ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 837 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 838 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 839
 840 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 841 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 842 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 843 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 844 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 845 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 846
 847 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 848 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 849
 850 // values for scrollbutton gadgets
 851 enum
 852 {
 853   ED_SCROLLBUTTON_ID_AREA_UP,
 854   ED_SCROLLBUTTON_ID_AREA_DOWN,
 855   ED_SCROLLBUTTON_ID_AREA_LEFT,
 856   ED_SCROLLBUTTON_ID_AREA_RIGHT,
 857   ED_SCROLLBUTTON_ID_LIST_UP,
 858   ED_SCROLLBUTTON_ID_LIST_DOWN,
 859
 860   ED_NUM_SCROLLBUTTONS
 861 };
 862
 863 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 864 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 865
 866 // values for scrollbar gadgets
 867 enum
 868 {
 869   ED_SCROLLBAR_ID_AREA_HORIZONTAL,
 870   ED_SCROLLBAR_ID_AREA_VERTICAL,
 871   ED_SCROLLBAR_ID_LIST_VERTICAL,
 872
 873   ED_NUM_SCROLLBARS
 874 };
 875
 876 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 877 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 878
 879 // values for text input gadgets
 880 enum
 881 {
 882   ED_TEXTINPUT_ID_LEVEL_NAME,
 883   ED_TEXTINPUT_ID_LEVEL_AUTHOR,
 884   ED_TEXTINPUT_ID_LEVELSET_NAME,
 885   ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
 886   ED_TEXTINPUT_ID_ELEMENT_NAME,
 887
 888   ED_NUM_TEXTINPUT
 889 };
 890
 891 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 892 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 893
 894 #define ED_TEXTINPUT_ID_LEVELSET_FIRST  ED_TEXTINPUT_ID_LEVELSET_NAME
 895 #define ED_TEXTINPUT_ID_LEVELSET_LAST   ED_TEXTINPUT_ID_LEVELSET_AUTHOR
 896
 897 // values for text area gadgets
 898 enum
 899 {
 900   ED_TEXTAREA_ID_ENVELOPE_INFO,
 901
 902   ED_NUM_TEXTAREAS
 903 };
 904
 905 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 906 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 907
 908 // values for selectbox gadgets
 909 enum
 910 {
 911   ED_SELECTBOX_ID_TIME_OR_STEPS,
 912   ED_SELECTBOX_ID_TIME_SCORE_BASE,
 913   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
 914   ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
 915   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
 916   ED_SELECTBOX_ID_WIND_DIRECTION,
 917   ED_SELECTBOX_ID_PLAYER_SPEED,
 918   ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
 919   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
 920   ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
 921   ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
 922   ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
 923   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
 924   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
 925   ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
 926   ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
 927   ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
 928   ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
 929   ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
 930   ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
 931   ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
 932   ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
 933   ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
 934   ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
 935   ED_SELECTBOX_ID_CHANGE_SIDE,
 936   ED_SELECTBOX_ID_CHANGE_PLAYER,
 937   ED_SELECTBOX_ID_CHANGE_PAGE,
 938   ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
 939   ED_SELECTBOX_ID_ACTION_TYPE,
 940   ED_SELECTBOX_ID_ACTION_MODE,
 941   ED_SELECTBOX_ID_ACTION_ARG,
 942   ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
 943   ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
 944
 945   ED_NUM_SELECTBOX
 946 };
 947
 948 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 949 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 950
 951 #define ED_SELECTBOX_ID_LEVELSET_FIRST  ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 952 #define ED_SELECTBOX_ID_LEVELSET_LAST   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 953
 954 #define ED_SELECTBOX_ID_ENGINE_FIRST    ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 955 #define ED_SELECTBOX_ID_ENGINE_LAST     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE
 956
 957 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 958 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 959 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 960 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 961 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 962 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 963
 964 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 965 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 966
 967 // values for textbutton gadgets
 968 enum
 969 {
 970   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
 971   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
 972   ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
 973   ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
 974   ED_TEXTBUTTON_ID_PROPERTIES_INFO,
 975   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
 976   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
 977   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
 978   ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
 979   ED_TEXTBUTTON_ID_SAVE_LEVELSET,
 980   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
 981   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
 982   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
 983   ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
 984
 985   ED_NUM_TEXTBUTTONS
 986 };
 987
 988 #define ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
 989 #define ED_TAB_BUTTON_ID_LEVELCONFIG_LAST  ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
 990
 991 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
 992 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 993
 994 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
 995 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
 996
 997 // values for graphicbutton gadgets
 998 enum
 999 {
1000   ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
1001   ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
1002   ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
1003   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
1004
1005   ED_NUM_GRAPHICBUTTONS
1006 };
1007
1008 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
1009 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
1010
1011 // values for checkbutton gadgets
1012 enum
1013 {
1014   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
1015   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
1016   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
1017   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
1018   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
1019   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
1020   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
1021   ED_CHECKBUTTON_ID_BD_INTERMISSION,
1022   ED_CHECKBUTTON_ID_BD_PAL_TIMING,
1023   ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
1024   ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
1025   ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
1026   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
1027   ED_CHECKBUTTON_ID_STICK_ELEMENT,
1028   ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
1029   ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
1030   ED_CHECKBUTTON_ID_USE_SPRING_BUG,
1031   ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
1032   ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
1033   ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
1034   ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
1035   ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
1036   ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
1037   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
1038   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
1039   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
1040   ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
1041   ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
1042   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
1043   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
1044   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
1045   ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
1046   ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
1047   ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
1048   ED_CHECKBUTTON_ID_LAZY_RELOCATION,
1049   ED_CHECKBUTTON_ID_USE_START_ELEMENT,
1050   ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
1051   ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
1052   ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
1053   ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
1054   ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
1055   ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
1056   ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
1057   ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
1058   ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
1059   ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
1060   ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
1061   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
1062   ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
1063   ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
1064   ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
1065   ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
1066   ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
1067   ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
1068   ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
1069   ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
1070   ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
1071   ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
1072   ED_CHECKBUTTON_ID_MM_LASER_RED,
1073   ED_CHECKBUTTON_ID_MM_LASER_GREEN,
1074   ED_CHECKBUTTON_ID_MM_LASER_BLUE,
1075   ED_CHECKBUTTON_ID_DF_LASER_RED,
1076   ED_CHECKBUTTON_ID_DF_LASER_GREEN,
1077   ED_CHECKBUTTON_ID_DF_LASER_BLUE,
1078   ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
1079   ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
1080   ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
1081   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
1082   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
1083   ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
1084   ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
1085   ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
1086   ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
1087   ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
1088   ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
1089   ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
1090   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
1091   ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
1092   ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
1093   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
1094   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
1095   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
1096   ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
1097   ED_CHECKBUTTON_ID_CHANGE_DELAY,
1098   ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
1099   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
1100   ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
1101   ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
1102   ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
1103   ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
1104   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
1105
1106   ED_NUM_CHECKBUTTONS
1107 };
1108
1109 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
1110 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
1111
1112 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
1113 #define ED_CHECKBUTTON_ID_LEVELSET_LAST  ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
1114
1115 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
1116 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
1117
1118 #define ED_CHECKBUTTON_ID_ENGINE_FIRST  ED_CHECKBUTTON_ID_BD_INTERMISSION
1119 #define ED_CHECKBUTTON_ID_ENGINE_LAST   ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL
1120
1121 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
1122 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
1123 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
1124 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
1125 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
1126 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
1127
1128 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
1129 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
1130
1131 // values for radiobutton gadgets
1132 enum
1133 {
1134   ED_RADIOBUTTON_ID_PERCENTAGE,
1135   ED_RADIOBUTTON_ID_QUANTITY,
1136
1137   ED_NUM_RADIOBUTTONS
1138 };
1139
1140 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
1141 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
1142
1143 // values for drawing area gadgets
1144 enum
1145 {
1146   ED_DRAWING_ID_DRAWING_LEVEL,
1147   ED_DRAWING_ID_YAMYAM_CONTENT_0,
1148   ED_DRAWING_ID_YAMYAM_CONTENT_1,
1149   ED_DRAWING_ID_YAMYAM_CONTENT_2,
1150   ED_DRAWING_ID_YAMYAM_CONTENT_3,
1151   ED_DRAWING_ID_YAMYAM_CONTENT_4,
1152   ED_DRAWING_ID_YAMYAM_CONTENT_5,
1153   ED_DRAWING_ID_YAMYAM_CONTENT_6,
1154   ED_DRAWING_ID_YAMYAM_CONTENT_7,
1155   ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
1156   ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
1157   ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
1158   ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
1159   ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
1160   ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
1161   ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
1162   ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
1163   ED_DRAWING_ID_ANDROID_CONTENT,
1164   ED_DRAWING_ID_AMOEBA_CONTENT,
1165   ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
1166   ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
1167   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
1168   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
1169   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
1170   ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
1171   ED_DRAWING_ID_START_ELEMENT,
1172   ED_DRAWING_ID_ARTWORK_ELEMENT,
1173   ED_DRAWING_ID_EXPLOSION_ELEMENT,
1174   ED_DRAWING_ID_INVENTORY_CONTENT,
1175   ED_DRAWING_ID_MM_BALL_CONTENT,
1176   ED_DRAWING_ID_CUSTOM_GRAPHIC,
1177   ED_DRAWING_ID_CUSTOM_CONTENT,
1178   ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
1179   ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
1180   ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
1181   ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
1182   ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
1183   ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
1184   ED_DRAWING_ID_GROUP_CONTENT,
1185   ED_DRAWING_ID_RANDOM_BACKGROUND,
1186
1187   ED_NUM_DRAWING_AREAS
1188 };
1189
1190 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
1191 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
1192
1193
1194 // ----------------------------------------------------------------------------
1195 // some internally used definitions
1196 // ----------------------------------------------------------------------------
1197
1198 // values for CopyLevelToUndoBuffer()
1199 #define UNDO_IMMEDIATE                  0
1200 #define UNDO_ACCUMULATE                 1
1201
1202 // values for scrollbars
1203 #define ED_SCROLL_NO                    0
1204 #define ED_SCROLL_LEFT                  1
1205 #define ED_SCROLL_RIGHT                 2
1206 #define ED_SCROLL_UP                    4
1207 #define ED_SCROLL_DOWN                  8
1208
1209 // screens in the level editor
1210 #define ED_MODE_DRAWING                 0
1211 #define ED_MODE_LEVELCONFIG             1
1212 #define ED_MODE_PROPERTIES              2
1213 #define ED_MODE_PALETTE                 3
1214
1215 // sub-screens in the global settings section
1216 #define ED_MODE_LEVELCONFIG_LEVEL       ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
1217 #define ED_MODE_LEVELCONFIG_LEVELSET    ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET
1218 #define ED_MODE_LEVELCONFIG_EDITOR      ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR
1219 #define ED_MODE_LEVELCONFIG_ENGINE      ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE
1220
1221 // sub-screens in the element properties section
1222 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1223 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1224 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1225 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1226 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1227
1228 // how many steps can be cancelled
1229 #define NUM_UNDO_STEPS                  (64 + 1)
1230
1231 // values for elements with score for certain actions
1232 #define MIN_SCORE                       0
1233 #define MAX_SCORE                       999
1234
1235 // values for elements with count for collecting
1236 #define MIN_COLLECT_COUNT               0
1237 #define MAX_COLLECT_COUNT               999
1238
1239 // values for random placement
1240 #define RANDOM_USE_PERCENTAGE           0
1241 #define RANDOM_USE_QUANTITY             1
1242
1243 // values for level set save mode
1244 #define LEVELSET_SAVE_MODE_UPDATE       0
1245 #define LEVELSET_SAVE_MODE_CREATE       1
1246
1247 // default value for element tile size in drawing area
1248 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1249 #define DEFAULT_EDITOR_TILESIZE_MM      TILESIZE
1250
1251
1252 // ----------------------------------------------------------------------------
1253 // some internally used data structure definitions
1254 // ----------------------------------------------------------------------------
1255
1256 static struct
1257 {
1258   int graphic;
1259   int gadget_id;
1260   struct XYTileSize *pos;
1261   int gadget_type;
1262   char *infotext;
1263   char shortcut;
1264 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1265 {
1266   // note: some additional characters are already reserved for "cheat mode"
1267   // shortcuts (":XYZ" style) -- for details, see "events.c"
1268
1269   // ---------- toolbox control buttons ---------------------------------------
1270
1271   {
1272     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1273     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1274     "draw single items",                        's'
1275   },
1276   {
1277     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1278     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1279     "draw connected items",                     'd'
1280   },
1281   {
1282     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1283     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1284     "draw lines",                               'l'
1285   },
1286   {
1287     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1288     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1289     "draw arcs",                                'a'
1290   },
1291   {
1292     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1293     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1294     "draw outline rectangles",                  'r'
1295   },
1296   {
1297     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1298     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1299     "draw filled rectangles",                   'R'
1300   },
1301   {
1302     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1303     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1304     "wrap (rotate) level up",                   0
1305   },
1306   {
1307     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1308     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1309     "enter text elements",                      't'
1310   },
1311   {
1312     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1313     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1314     "flood fill",                               'f'
1315   },
1316   {
1317     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1318     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1319     "wrap (rotate) level left",                 0
1320   },
1321   {
1322     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1323     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1324     "zoom level tile size",                     '+'
1325   },
1326   {
1327     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1328     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1329     "wrap (rotate) level right",                0
1330   },
1331   {
1332     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1333     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1334     "random element placement",                 0
1335   },
1336   {
1337     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1338     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1339     "grab brush",                               'b'
1340   },
1341   {
1342     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1343     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1344     "wrap (rotate) level down",                 0
1345   },
1346   {
1347     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1348     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1349     "pick drawing element",                     ','
1350   },
1351
1352   // ---------- level control buttons -----------------------------------------
1353
1354   {
1355     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1356     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1357     "undo/redo last operation",                 'u'
1358   },
1359   {
1360     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_CONF,
1361     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1362     "level and editor settings",                'I'
1363   },
1364   {
1365     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1366     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1367     "save level",                               'S'
1368   },
1369   {
1370     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1371     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1372     "clear level",                              'C'
1373   },
1374   {
1375     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1376     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1377     "test level",                               'T'
1378   },
1379   {
1380     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1381     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1382     "exit level editor",                        'E'
1383   },
1384
1385   // ---------- CE and GE control buttons -------------------------------------
1386
1387   {
1388     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1389     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1390     "copy settings from other element",         0
1391   },
1392   {
1393     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1394     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1395     "copy settings to other element",           0
1396   },
1397   {
1398     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1399     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1400     "exchange element with other element",      0
1401   },
1402   {
1403     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1404     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1405     "copy settings from this element",          0
1406   },
1407   {
1408     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1409     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1410     "paste settings to this element",           0
1411   },
1412
1413   // ---------- palette control buttons ---------------------------------------
1414
1415   {
1416     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1417     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1418     "properties of drawing element",            'p'
1419   },
1420   {
1421     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1422     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1423     "properties of drawing element 1",          '1'
1424   },
1425   {
1426     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1427     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1428     "properties of drawing element 2",          '2'
1429   },
1430   {
1431     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1432     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1433     "properties of drawing element 3",          '3'
1434   },
1435   {
1436     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1437     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1438     "show list of elements",                    'e'
1439   }
1440 };
1441
1442 static int random_placement_value = 10;
1443 static int random_placement_method = RANDOM_USE_QUANTITY;
1444 static int random_placement_background_element = EL_SAND;
1445 static boolean random_placement_background_restricted = FALSE;
1446 static boolean stick_element_properties_window = FALSE;
1447 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1448 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1449 static struct ElementChangeInfo custom_element_change;
1450 static struct ElementGroupInfo group_element_info;
1451 static struct ElementInfo custom_element;
1452
1453 static char levelset_name[MAX_LEVEL_NAME_LEN + 1];
1454 static char levelset_author[MAX_LEVEL_AUTHOR_LEN + 1];
1455 static int levelset_num_levels = 100;
1456 static boolean levelset_use_levelset_artwork = FALSE;
1457 static boolean levelset_copy_level_template = FALSE;
1458 static int levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
1459
1460 static struct
1461 {
1462   int gadget_type_id;
1463   int x, y;
1464   int min_value, max_value;
1465   int gadget_id_down, gadget_id_up;
1466   int gadget_id_text;
1467   int gadget_id_align;
1468   int *value;
1469   char *text_above, *text_left, *text_right;
1470 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1471 {
1472   // ---------- current level number ------------------------------------------
1473
1474   {
1475     ED_COUNTER_ID_SELECT_LEVEL,
1476     -1, -1,     // these values are not constant, but can change at runtime
1477     1,                                  100,
1478     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1479     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1480     &level_nr,
1481     NULL,                               NULL, NULL
1482   },
1483
1484   // ---------- level and editor settings -------------------------------------
1485
1486   {
1487     ED_COUNTER_ID_LEVEL_XSIZE,
1488     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1489     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1490     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1491     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1492     &level.fieldx,
1493     "playfield size:",                  NULL, "width",
1494   },
1495   {
1496     ED_COUNTER_ID_LEVEL_YSIZE,
1497     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1498     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1499     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1500     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1501     &level.fieldy,
1502     NULL,                               " ", "height",
1503   },
1504   {
1505     ED_COUNTER_ID_LEVEL_GEMSLIMIT,
1506     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1507     0,                                  999,
1508     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1509     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1510     &level.gems_needed,
1511     NULL,                               "number of gems to collect:", NULL
1512   },
1513   {
1514     ED_COUNTER_ID_LEVEL_TIMELIMIT,
1515     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
1516     0,                                  9999,
1517     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1518     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1519     &level.time,
1520     "time or step limit to solve level:", NULL, NULL
1521   },
1522   {
1523     ED_COUNTER_ID_LEVEL_TIMESCORE,
1524     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
1525     0,                                  999,
1526     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1527     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1528     &level.score[SC_TIME_BONUS],
1529     "score for time or steps left:",    NULL, NULL
1530   },
1531   {
1532     ED_COUNTER_ID_LEVEL_RANDOM_SEED,
1533     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(13),
1534     0,                                  9999,
1535     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1536     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1537     &level.random_seed,
1538     NULL,                               "random seed:", "(0 => random)"
1539   },
1540   {
1541     ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
1542     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1543     1,                                  MAX_LEVELS,
1544     GADGET_ID_LEVELSET_NUM_LEVELS_DOWN, GADGET_ID_LEVELSET_NUM_LEVELS_UP,
1545     GADGET_ID_LEVELSET_NUM_LEVELS_TEXT, GADGET_ID_NONE,
1546     &levelset_num_levels,
1547     "number of levels:",                NULL, NULL,
1548   },
1549   {
1550     ED_COUNTER_ID_LEVEL_RANDOM,
1551     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1552     1,                                  100,
1553     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1554     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1555     &random_placement_value,
1556     "random element placement:",        NULL, "in"
1557   },
1558   {
1559     ED_COUNTER_ID_BD_CYCLE_DELAY_MS,
1560     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1561     50,                                 500,
1562     GADGET_ID_BD_CYCLE_DELAY_MS_DOWN,   GADGET_ID_BD_CYCLE_DELAY_MS_UP,
1563     GADGET_ID_BD_CYCLE_DELAY_MS_TEXT,   GADGET_ID_NONE,
1564     &level.bd_cycle_delay_ms,
1565     NULL,                               NULL, "game cycle delay (ms)"
1566   },
1567   {
1568     ED_COUNTER_ID_BD_CYCLE_DELAY_C64,
1569     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(3),
1570     0,                                  32,
1571     GADGET_ID_BD_CYCLE_DELAY_C64_DOWN,  GADGET_ID_BD_CYCLE_DELAY_C64_UP,
1572     GADGET_ID_BD_CYCLE_DELAY_C64_TEXT,  GADGET_ID_NONE,
1573     &level.bd_cycle_delay_c64,
1574     NULL,                               NULL, "game cycle delay (C64-style)"
1575   },
1576   {
1577     ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES,
1578     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1579     1,                                  40,
1580     GADGET_ID_BD_HATCHING_DELAY_CYCLES_DOWN,    GADGET_ID_BD_HATCHING_DELAY_CYCLES_UP,
1581     GADGET_ID_BD_HATCHING_DELAY_CYCLES_TEXT,    GADGET_ID_NONE,
1582     &level.bd_hatching_delay_cycles,
1583     NULL,                               NULL, "hatching delay (cycles)"
1584   },
1585   {
1586     ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS,
1587     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1588     1,                                  40,
1589     GADGET_ID_BD_HATCHING_DELAY_SECONDS_DOWN,   GADGET_ID_BD_HATCHING_DELAY_SECONDS_UP,
1590     GADGET_ID_BD_HATCHING_DELAY_SECONDS_TEXT,   GADGET_ID_NONE,
1591     &level.bd_hatching_delay_seconds,
1592     NULL,                               NULL, "hatching delay (seconds)"
1593   },
1594
1595   // ---------- element settings: configure (various elements) ----------------
1596
1597   {
1598     ED_COUNTER_ID_BD_PUSHING_PROB,
1599     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1600     0,                                  100,
1601     GADGET_ID_BD_PUSHING_PROB_DOWN,     GADGET_ID_BD_PUSHING_PROB_UP,
1602     GADGET_ID_BD_PUSHING_PROB_TEXT,     GADGET_ID_NONE,
1603     &level.bd_pushing_prob,
1604     NULL,                               NULL, "push probability"
1605   },
1606   {
1607     ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET,
1608     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1609     0,                                  100,
1610     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_DOWN,  GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_UP,
1611     GADGET_ID_BD_PUSHING_PROB_WITH_SWEET_TEXT,  GADGET_ID_NONE,
1612     &level.bd_pushing_prob_with_sweet,
1613     NULL,                               NULL, "push probability with sweet"
1614   },
1615   {
1616     ED_COUNTER_ID_ELEMENT_VALUE1,
1617     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1618     MIN_SCORE,                          MAX_SCORE,
1619     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1620     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1621     NULL,                               // will be set when used
1622     NULL,                               NULL, NULL
1623   },
1624   {
1625     ED_COUNTER_ID_ELEMENT_VALUE2,
1626     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1627     MIN_SCORE,                          MAX_SCORE,
1628     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1629     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1630     NULL,                               // will be set when used
1631     NULL,                               NULL, NULL
1632   },
1633   {
1634     ED_COUNTER_ID_ELEMENT_VALUE3,
1635     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1636     MIN_SCORE,                          MAX_SCORE,
1637     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1638     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1639     NULL,                               // will be set when used
1640     NULL,                               NULL, NULL
1641   },
1642   {
1643     ED_COUNTER_ID_ELEMENT_VALUE4,
1644     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1645     MIN_SCORE,                          MAX_SCORE,
1646     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1647     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1648     NULL,                               // will be set when used
1649     NULL,                               NULL, NULL
1650   },
1651   {
1652     ED_COUNTER_ID_YAMYAM_CONTENT,
1653     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1654     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1655     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1656     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1657     &level.num_yamyam_contents,
1658     NULL,                               NULL, "number of content areas"
1659   },
1660   {
1661     ED_COUNTER_ID_BALL_CONTENT,
1662     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1663     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1664     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1665     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1666     &level.num_ball_contents,
1667     NULL,                               NULL, "number of content areas"
1668   },
1669   {
1670     ED_COUNTER_ID_ANDROID_CONTENT,
1671     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1672     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1673     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1674     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1675     &level.num_android_clone_elements,
1676     NULL,                               NULL, "number of clonable elements"
1677   },
1678   {
1679     ED_COUNTER_ID_ENVELOPE_XSIZE,
1680     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1681     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1682     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1683     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1684     NULL,                               // will be set when used
1685     NULL,                               NULL, "width",
1686   },
1687   {
1688     ED_COUNTER_ID_ENVELOPE_YSIZE,
1689     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1690     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1691     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1692     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1693     NULL,                               // will be set when used
1694     NULL,                               " ", "height",
1695   },
1696   {
1697     ED_COUNTER_ID_INVENTORY_SIZE,
1698     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1699     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1700     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1701     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1702     &level.initial_inventory_size[0],
1703     NULL,                               NULL, "number of inventory elements"
1704   },
1705   {
1706     ED_COUNTER_ID_MM_BALL_CONTENT,
1707     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1708     MIN_ELEMENTS_IN_GROUP,              MAX_MM_BALL_CONTENTS,
1709     GADGET_ID_MM_BALL_CONTENT_DOWN,     GADGET_ID_MM_BALL_CONTENT_UP,
1710     GADGET_ID_MM_BALL_CONTENT_TEXT,     GADGET_ID_NONE,
1711     &level.num_mm_ball_contents,
1712     NULL,                               NULL, "number of content elements"
1713   },
1714
1715   // ---------- element settings: configure 1 (custom elements) ---------------
1716
1717   {
1718     ED_COUNTER_ID_CUSTOM_SCORE,
1719     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1720     MIN_SCORE,                          MAX_SCORE,
1721     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1722     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1723     &custom_element.collect_score_initial,
1724     NULL,                               "CE score", " "
1725   },
1726   {
1727     ED_COUNTER_ID_CUSTOM_GEMCOUNT,
1728     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1729     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1730     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1731     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1732     &custom_element.collect_count_initial,
1733     NULL,                               "CE count", NULL
1734   },
1735   {
1736     ED_COUNTER_ID_CUSTOM_VALUE_FIX,
1737     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1738     0,                                  9999,
1739     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1740     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1741     &custom_element.ce_value_fixed_initial,
1742     NULL,                               "CE value", NULL
1743   },
1744   {
1745     ED_COUNTER_ID_CUSTOM_VALUE_RND,
1746     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1747     0,                                  9999,
1748     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1749     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1750     &custom_element.ce_value_random_initial,
1751     NULL,                               "+random", NULL
1752   },
1753   {
1754     ED_COUNTER_ID_PUSH_DELAY_FIX,
1755     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1756     0,                                  999,
1757     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1758     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1759     &custom_element.push_delay_fixed,
1760     NULL,                               "push delay", NULL
1761   },
1762   {
1763     ED_COUNTER_ID_PUSH_DELAY_RND,
1764     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1765     0,                                  999,
1766     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1767     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1768     &custom_element.push_delay_random,
1769     NULL,                               "+random", NULL
1770   },
1771   {
1772     ED_COUNTER_ID_DROP_DELAY_FIX,
1773     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1774     0,                                  999,
1775     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1776     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1777     &custom_element.drop_delay_fixed,
1778     NULL,                               "drop delay", NULL
1779   },
1780   {
1781     ED_COUNTER_ID_DROP_DELAY_RND,
1782     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1783     0,                                  999,
1784     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1785     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1786     &custom_element.drop_delay_random,
1787     NULL,                               "+random", NULL
1788   },
1789
1790   // ---------- element settings: configure 2 (custom elements) ---------------
1791
1792   {
1793     ED_COUNTER_ID_MOVE_DELAY_FIX,
1794     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1795     0,                                  999,
1796     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1797     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1798     &custom_element.move_delay_fixed,
1799     NULL,                               "move delay", NULL
1800   },
1801   {
1802     ED_COUNTER_ID_MOVE_DELAY_RND,
1803     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1804     0,                                  999,
1805     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1806     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1807     &custom_element.move_delay_random,
1808     NULL,                               "+random", NULL
1809   },
1810   {
1811     ED_COUNTER_ID_STEP_DELAY_FIX,
1812     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1813     0,                                  999,
1814     GADGET_ID_STEP_DELAY_FIX_DOWN,      GADGET_ID_STEP_DELAY_FIX_UP,
1815     GADGET_ID_STEP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1816     &custom_element.step_delay_fixed,
1817     NULL,                               "step delay", NULL
1818   },
1819   {
1820     ED_COUNTER_ID_STEP_DELAY_RND,
1821     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1822     0,                                  999,
1823     GADGET_ID_STEP_DELAY_RND_DOWN,      GADGET_ID_STEP_DELAY_RND_UP,
1824     GADGET_ID_STEP_DELAY_RND_TEXT,      GADGET_ID_STEP_DELAY_FIX_UP,
1825     &custom_element.step_delay_random,
1826     NULL,                               "+random", NULL
1827   },
1828   {
1829     ED_COUNTER_ID_EXPLOSION_DELAY,
1830     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1831     0,                                  999,
1832     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1833     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1834     &custom_element.explosion_delay,
1835     NULL,                               "explosion delay", NULL
1836   },
1837   {
1838     ED_COUNTER_ID_IGNITION_DELAY,
1839     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
1840     0,                                  999,
1841     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1842     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1843     &custom_element.ignition_delay,
1844     NULL,                               "ignition delay", "(by fire)"
1845   },
1846
1847   // ---------- element settings: configure (group elements) ------------------
1848
1849   {
1850     ED_COUNTER_ID_GROUP_CONTENT,
1851     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1852     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1853     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1854     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1855     &group_element_info.num_elements,
1856     NULL,                               NULL, "number of elements in group"
1857   },
1858
1859   // ---------- element settings: advanced (custom elements) ------------------
1860
1861   {
1862     ED_COUNTER_ID_CHANGE_DELAY_FIX,
1863     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1864     0,                                  999,
1865     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1866     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1867     &custom_element_change.delay_fixed,
1868     NULL,                               "CE delay", NULL,
1869   },
1870   {
1871     ED_COUNTER_ID_CHANGE_DELAY_RND,
1872     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1873     0,                                  999,
1874     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1875     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1876     &custom_element_change.delay_random,
1877     NULL,                               "+random", NULL
1878   },
1879   {
1880     ED_COUNTER_ID_CHANGE_CONT_RND,
1881     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1882     0,                                  100,
1883     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1884     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1885     &custom_element_change.random_percentage,
1886     NULL,                               "use random replace:", "%"
1887   },
1888 };
1889
1890 static struct
1891 {
1892   int gadget_type_id;
1893   int x, y;
1894   int gadget_id;
1895   int size;
1896   char *value;
1897   char *text_above, *infotext;
1898 } textinput_info[ED_NUM_TEXTINPUT] =
1899 {
1900   {
1901     ED_TEXTINPUT_ID_LEVEL_NAME,
1902     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1903     GADGET_ID_LEVEL_NAME,
1904     MAX_LEVEL_NAME_LEN,
1905     level.name,
1906     "Title:", "Title for this level"
1907   },
1908   {
1909     ED_TEXTINPUT_ID_LEVEL_AUTHOR,
1910     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1911     GADGET_ID_LEVEL_AUTHOR,
1912     MAX_LEVEL_AUTHOR_LEN,
1913     level.author,
1914     "Author:", "Author for this level"
1915   },
1916   {
1917     ED_TEXTINPUT_ID_LEVELSET_NAME,
1918     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1919     GADGET_ID_LEVELSET_NAME,
1920     MAX_LEVEL_NAME_LEN,
1921     levelset_name,
1922     "Title:", "Title for this or new level set"
1923   },
1924   {
1925     ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
1926     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1927     GADGET_ID_LEVELSET_AUTHOR,
1928     MAX_LEVEL_AUTHOR_LEN,
1929     levelset_author,
1930     "Author:", "Author for this or new level set"
1931   },
1932   {
1933     ED_TEXTINPUT_ID_ELEMENT_NAME,
1934     -1, -1,     // these values are not constant, but can change at runtime
1935     GADGET_ID_ELEMENT_NAME,
1936     MAX_ELEMENT_NAME_LEN - 2,           // currently 2 chars less editable
1937     custom_element.description,
1938     NULL, "Element name"
1939   }
1940 };
1941
1942 static struct
1943 {
1944   int gadget_type_id;
1945   int x, y;
1946   int gadget_id;
1947   int xsize, ysize;
1948   char *value;
1949   char *text_above, *text_above_cropped, *infotext;
1950 } textarea_info[ED_NUM_TEXTAREAS] =
1951 {
1952   {
1953     ED_TEXTAREA_ID_ENVELOPE_INFO,
1954     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1955     GADGET_ID_ENVELOPE_INFO,
1956     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1957     NULL,
1958     "Envelope Content:", "Envelope Content (cropped):", "Envelope Content"
1959   }
1960 };
1961
1962 static struct ValueTextInfo options_time_or_steps[] =
1963 {
1964   { 0,                          "seconds"                       },
1965   { 1,                          "steps"                         },
1966
1967   { -1,                         NULL                            }
1968 };
1969
1970 static struct ValueTextInfo options_time_score_base[] =
1971 {
1972   { 1,                          "per second/step"               },
1973   { 10,                         "per 10 seconds/steps"          },
1974
1975   { -1,                         NULL                            }
1976 };
1977
1978 static struct ValueTextInfo options_game_engine_type[] =
1979 {
1980   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
1981   { GAME_ENGINE_TYPE_BD,        "Boulder Dash"                  },
1982   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
1983   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
1984   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
1985
1986   { -1,                         NULL                            }
1987 };
1988
1989 static struct ValueTextInfo options_levelset_save_mode[] =
1990 {
1991   { LEVELSET_SAVE_MODE_UPDATE,  "Update this level set"         },
1992   { LEVELSET_SAVE_MODE_CREATE,  "Create new level set"          },
1993
1994   { -1,                         NULL                            }
1995 };
1996
1997 static struct ValueTextInfo options_wind_direction[] =
1998 {
1999   { MV_START_NONE,              "none"                          },
2000   { MV_START_LEFT,              "left"                          },
2001   { MV_START_RIGHT,             "right"                         },
2002   { MV_START_UP,                "up"                            },
2003   { MV_START_DOWN,              "down"                          },
2004
2005   { -1,                         NULL                            }
2006 };
2007
2008 static struct ValueTextInfo options_player_speed[] =
2009 {
2010   { 0,                          "frozen"                        },
2011   { 1,                          "very slow"                     },
2012   { 2,                          "slow"                          },
2013   { 4,                          "normal"                        },
2014   { 8,                          "fast"                          },
2015   { 16,                         "very fast"                     },
2016   { 32,                         "ultrafast"                     },
2017
2018   { -1,                         NULL                            }
2019 };
2020
2021 static struct ValueTextInfo options_access_type[] =
2022 {
2023   { EP_WALKABLE,                "walkable"                      },
2024   { EP_PASSABLE,                "passable"                      },
2025
2026   { -1,                         NULL                            }
2027 };
2028
2029 static struct ValueTextInfo options_access_layer[] =
2030 {
2031   { EP_ACCESSIBLE_OVER,         "over"                          },
2032   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
2033   { EP_ACCESSIBLE_UNDER,        "under"                         },
2034
2035   { -1,                         NULL                            }
2036 };
2037
2038 static struct ValueTextInfo options_access_protected[] =
2039 {
2040   { 0,                          "unprotected"                   },
2041   { 1,                          "protected"                     },
2042
2043   { -1,                         NULL                            }
2044 };
2045
2046 static struct ValueTextInfo options_access_direction[] =
2047 {
2048   { MV_NO_DIRECTION,            "no direction"                  },
2049   { MV_LEFT,                    "left"                          },
2050   { MV_RIGHT,                   "right"                         },
2051   { MV_UP,                      "up"                            },
2052   { MV_DOWN,                    "down"                          },
2053   { MV_LEFT  | MV_UP,           "left + up"                     },
2054   { MV_LEFT  | MV_DOWN,         "left + down"                   },
2055   { MV_RIGHT | MV_UP,           "right + up"                    },
2056   { MV_RIGHT | MV_DOWN,         "right + down"                  },
2057   { MV_HORIZONTAL,              "horizontal"                    },
2058   { MV_VERTICAL,                "vertical"                      },
2059   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
2060   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
2061   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
2062   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
2063   { MV_ALL_DIRECTIONS,          "all directions"                },
2064
2065   { -1,                         NULL                            }
2066 };
2067
2068 static struct ValueTextInfo options_walk_to_action[] =
2069 {
2070   { EP_DIGGABLE,                "diggable"                      },
2071   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
2072   { EP_DROPPABLE,               "collectible & droppable"       },
2073   { EP_THROWABLE,               "collectible & throwable"       },
2074   { EP_PUSHABLE,                "pushable"                      },
2075
2076   { -1,                         NULL                            }
2077 };
2078
2079 static struct ValueTextInfo options_move_pattern[] =
2080 {
2081   { MV_LEFT,                    "left"                          },
2082   { MV_RIGHT,                   "right"                         },
2083   { MV_UP,                      "up"                            },
2084   { MV_DOWN,                    "down"                          },
2085   { MV_HORIZONTAL,              "horizontal"                    },
2086   { MV_VERTICAL,                "vertical"                      },
2087   { MV_ALL_DIRECTIONS,          "all directions"                },
2088   { MV_WIND_DIRECTION,          "wind direction"                },
2089   { MV_TOWARDS_PLAYER,          "towards player"                },
2090   { MV_AWAY_FROM_PLAYER,        "away from player"              },
2091   { MV_ALONG_LEFT_SIDE,         "along left side"               },
2092   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
2093   { MV_TURNING_LEFT,            "turning left"                  },
2094   { MV_TURNING_RIGHT,           "turning right"                 },
2095   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
2096   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
2097   { MV_TURNING_RANDOM,          "turning random"                },
2098   { MV_MAZE_RUNNER,             "maze runner style"             },
2099   { MV_MAZE_HUNTER,             "maze hunter style"             },
2100   { MV_WHEN_PUSHED,             "when pushed"                   },
2101   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
2102
2103   { -1,                         NULL                            }
2104 };
2105
2106 static struct ValueTextInfo options_move_direction[] =
2107 {
2108   { MV_START_AUTOMATIC,         "automatic"                     },
2109   { MV_START_LEFT,              "left"                          },
2110   { MV_START_RIGHT,             "right"                         },
2111   { MV_START_UP,                "up"                            },
2112   { MV_START_DOWN,              "down"                          },
2113   { MV_START_RANDOM,            "random"                        },
2114   { MV_START_PREVIOUS,          "previous"                      },
2115
2116   { -1,                         NULL                            }
2117 };
2118
2119 static struct ValueTextInfo options_move_stepsize[] =
2120 {
2121   { 0,                          "not moving"                    },
2122   { 1,                          "very slow"                     },
2123   { 2,                          "slow"                          },
2124   { 4,                          "normal"                        },
2125   { 8,                          "fast"                          },
2126   { 16,                         "very fast"                     },
2127   { 32,                         "even faster"                   },
2128
2129   { -1,                         NULL                            }
2130 };
2131
2132 static struct ValueTextInfo options_move_leave_type[] =
2133 {
2134   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
2135   { LEAVE_TYPE_LIMITED,         "change it to"                  },
2136
2137   { -1,                         NULL                            }
2138 };
2139
2140 static struct ValueTextInfo options_smash_targets[] =
2141 {
2142   { EP_CAN_SMASH_PLAYER,        "player"                        },
2143 #if 0
2144   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
2145 #endif
2146   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
2147
2148   { -1,                         NULL                            }
2149 };
2150
2151 static struct ValueTextInfo options_slippery_type[] =
2152 {
2153   { SLIPPERY_ANY_RANDOM,        "random"                        },
2154   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
2155   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
2156   { SLIPPERY_ONLY_LEFT,         "only left"                     },
2157   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
2158
2159   { -1,                         NULL                            }
2160 };
2161
2162 static struct ValueTextInfo options_deadliness[] =
2163 {
2164   { EP_DONT_RUN_INTO,           "running into"                  },
2165   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
2166   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
2167   { EP_DONT_TOUCH,              "touching"                      },
2168
2169   { -1,                         NULL                            }
2170 };
2171
2172 static struct ValueTextInfo options_explosion_type[] =
2173 {
2174   { EXPLODES_3X3,               "3x3"                           },
2175   { EXPLODES_CROSS,             "3+3"                           },
2176   { EXPLODES_1X1,               "1x1"                           },
2177
2178   { -1,                         NULL                            }
2179 };
2180
2181 static struct ValueTextInfo options_time_units[] =
2182 {
2183   { 1,                          "frames"                        },
2184   { FRAMES_PER_SECOND,          "seconds"                       },
2185
2186   { -1,                         NULL                            }
2187 };
2188
2189 static struct ValueTextInfo options_change_direct_action[] =
2190 {
2191   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
2192   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
2193   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
2194   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
2195   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
2196   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
2197   { CE_LEFT_BY_PLAYER,          "left by player"                },
2198   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
2199   { CE_SWITCHED,                "switched"                      },
2200   { CE_HITTING_SOMETHING,       "hitting something"             },
2201   { CE_HIT_BY_SOMETHING,        "hit by something"              },
2202 #if 0
2203   { CE_BLOCKED,                 "blocked"                       },
2204 #endif
2205   { CE_IMPACT,                  "impact (on something)"         },
2206   { CE_SMASHED,                 "smashed (from above)"          },
2207 #if 0
2208   { CE_VALUE_CHANGES,           "CE value changes"              },
2209   { CE_SCORE_CHANGES,           "CE score changes"              },
2210 #endif
2211   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
2212   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
2213   { CE_UNDEFINED,               " "                             },
2214   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2215   { CE_CLICKED_BY_MOUSE,        "clicked by mouse"              },
2216   { CE_PRESSED_BY_MOUSE,        "pressed by mouse"              },
2217   { CE_UNDEFINED,               " "                             },
2218   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2219   { CE_NEXT_TO_PLAYER,          "next to player"                },
2220
2221   { -1,                         NULL                            }
2222 };
2223
2224 static struct ValueTextInfo options_change_other_action[] =
2225 {
2226   { CE_PLAYER_TOUCHES_X,        "player touches"                },
2227   { CE_PLAYER_PRESSES_X,        "player presses"                },
2228   { CE_PLAYER_SWITCHES_X,       "player switches"               },
2229   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
2230   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
2231   { CE_PLAYER_ENTERS_X,         "player enters"                 },
2232   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
2233   { CE_PLAYER_DIGS_X,           "player digs"                   },
2234   { CE_PLAYER_COLLECTS_X,       "player collects"               },
2235   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
2236   { CE_TOUCHING_X,              "touching"                      },
2237   { CE_HITTING_X,               "hitting"                       },
2238   { CE_DIGGING_X,               "digging"                       },
2239   { CE_HIT_BY_X,                "hit by"                        },
2240   { CE_SWITCH_OF_X,             "switch of"                     },
2241   { CE_CHANGE_OF_X,             "change by page of"             },
2242   { CE_EXPLOSION_OF_X,          "explosion of"                  },
2243   { CE_MOVE_OF_X,               "move of"                       },
2244   { CE_CREATION_OF_X,           "creation of"                   },
2245   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
2246   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
2247   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
2248   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
2249   { CE_UNDEFINED,               " "                             },
2250   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2251   { CE_MOUSE_CLICKED_ON_X,      "mouse clicked on"              },
2252   { CE_MOUSE_PRESSED_ON_X,      "mouse pressed on"              },
2253   { CE_UNDEFINED,               " "                             },
2254   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2255   { CE_PLAYER_NEXT_TO_X,        "player next to"                },
2256   { CE_NEXT_TO_X,               "next to"                       },
2257
2258   { -1,                         NULL                            }
2259 };
2260
2261 static struct ValueTextInfo options_change_trigger_side[] =
2262 {
2263   { CH_SIDE_LEFT,               "left"                          },
2264   { CH_SIDE_RIGHT,              "right"                         },
2265   { CH_SIDE_TOP,                "top"                           },
2266   { CH_SIDE_BOTTOM,             "bottom"                        },
2267   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
2268   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
2269   { CH_SIDE_ANY,                "any"                           },
2270
2271   { -1,                         NULL                            }
2272 };
2273
2274 static struct ValueTextInfo options_change_trigger_player[] =
2275 {
2276   { CH_PLAYER_1,                "1"                             },
2277   { CH_PLAYER_2,                "2"                             },
2278   { CH_PLAYER_3,                "3"                             },
2279   { CH_PLAYER_4,                "4"                             },
2280   { CH_PLAYER_ANY,              "any"                           },
2281
2282   { -1,                         NULL                            }
2283 };
2284
2285 static struct ValueTextInfo options_change_trigger_page[] =
2286 {
2287   { (1u << 0),                  "1"                             },
2288   { (1u << 1),                  "2"                             },
2289   { (1u << 2),                  "3"                             },
2290   { (1u << 3),                  "4"                             },
2291   { (1u << 4),                  "5"                             },
2292   { (1u << 5),                  "6"                             },
2293   { (1u << 6),                  "7"                             },
2294   { (1u << 7),                  "8"                             },
2295   { (1u << 8),                  "9"                             },
2296   { (1u << 9),                  "10"                            },
2297   { (1u << 10),                 "11"                            },
2298   { (1u << 11),                 "12"                            },
2299   { (1u << 12),                 "13"                            },
2300   { (1u << 13),                 "14"                            },
2301   { (1u << 14),                 "15"                            },
2302   { (1u << 15),                 "16"                            },
2303   { (1u << 16),                 "17"                            },
2304   { (1u << 17),                 "18"                            },
2305   { (1u << 18),                 "19"                            },
2306   { (1u << 19),                 "20"                            },
2307   { (1u << 20),                 "21"                            },
2308   { (1u << 21),                 "22"                            },
2309   { (1u << 22),                 "23"                            },
2310   { (1u << 23),                 "24"                            },
2311   { (1u << 24),                 "25"                            },
2312   { (1u << 25),                 "26"                            },
2313   { (1u << 26),                 "27"                            },
2314   { (1u << 27),                 "28"                            },
2315   { (1u << 28),                 "29"                            },
2316   { (1u << 29),                 "30"                            },
2317   { (1u << 30),                 "31"                            },
2318   { (1u << 31),                 "32"                            },
2319   { CH_PAGE_ANY,                "any"                           },
2320
2321   { -1,                         NULL                            }
2322 };
2323
2324 static struct ValueTextInfo options_change_replace_when[] =
2325 {
2326   { CP_WHEN_EMPTY,              "empty"                         },
2327   { CP_WHEN_WALKABLE,           "walkable"                      },
2328   { CP_WHEN_DIGGABLE,           "diggable"                      },
2329   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
2330   { CP_WHEN_REMOVABLE,          "removable"                     },
2331   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
2332
2333   { -1,                         NULL                            }
2334 };
2335
2336 static struct ValueTextInfo options_action_type[] =
2337 {
2338   { CA_NO_ACTION,               "no action"                     },
2339   { CA_UNDEFINED,               " "                             },
2340   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
2341   { CA_RESTART_LEVEL,           "restart level"                 },
2342   { CA_SHOW_ENVELOPE,           "show envelope"                 },
2343   { CA_SET_LEVEL_TIME,          "set time"                      },
2344   { CA_SET_LEVEL_SCORE,         "set score"                     },
2345   { CA_SET_LEVEL_GEMS,          "set gems"                      },
2346   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
2347   { CA_SET_LEVEL_RANDOM_SEED,   "set random seed"               },
2348   { CA_UNDEFINED,               " "                             },
2349   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
2350   { CA_MOVE_PLAYER,             "move player"                   },
2351   { CA_MOVE_PLAYER_NEW,         "move player new"               },
2352   { CA_EXIT_PLAYER,             "exit player"                   },
2353   { CA_KILL_PLAYER,             "kill player"                   },
2354   { CA_SET_PLAYER_KEYS,         "set keys"                      },
2355   { CA_SET_PLAYER_SPEED,        "set speed"                     },
2356   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
2357   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
2358   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
2359   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
2360   { CA_UNDEFINED,               " "                             },
2361   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
2362   { CA_SET_CE_VALUE,            "set CE value"                  },
2363   { CA_SET_CE_SCORE,            "set CE score"                  },
2364   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
2365   { CA_UNDEFINED,               " "                             },
2366   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
2367   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
2368
2369   { -1,                         NULL                            }
2370 };
2371
2372 static struct ValueTextInfo options_action_mode_none[] =
2373 {
2374   { CA_MODE_UNDEFINED,          " "                             },
2375
2376   { -1,                         NULL                            }
2377 };
2378
2379 static struct ValueTextInfo options_action_mode_assign[] =
2380 {
2381   { CA_MODE_SET,                "="                             },
2382
2383   { -1,                         NULL                            }
2384 };
2385
2386 static struct ValueTextInfo options_action_mode_add_remove[] =
2387 {
2388   { CA_MODE_ADD,                "+"                             },
2389   { CA_MODE_SUBTRACT,           "-"                             },
2390
2391   { -1,                         NULL                            }
2392 };
2393
2394 static struct ValueTextInfo options_action_mode_calculate[] =
2395 {
2396   { CA_MODE_SET,                "="                             },
2397   { CA_MODE_ADD,                "+"                             },
2398   { CA_MODE_SUBTRACT,           "-"                             },
2399   { CA_MODE_MULTIPLY,           "*"                             },
2400   { CA_MODE_DIVIDE,             "/"                             },
2401   { CA_MODE_MODULO,             "%"                             },
2402
2403   { -1,                         NULL                            }
2404 };
2405
2406 static struct ValueTextInfo options_action_arg_none[] =
2407 {
2408   { CA_ARG_UNDEFINED,           "         "                     },
2409
2410   { -1,                         NULL                            }
2411 };
2412
2413 static struct ValueTextInfo options_action_arg_player[] =
2414 {
2415   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2416   { CA_ARG_PLAYER_1,            "1"                             },
2417   { CA_ARG_PLAYER_2,            "2"                             },
2418   { CA_ARG_PLAYER_3,            "3"                             },
2419   { CA_ARG_PLAYER_4,            "4"                             },
2420   { CA_ARG_PLAYER_ANY,          "any"                           },
2421   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2422   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2423
2424   { -1,                         NULL                            }
2425 };
2426
2427 static struct ValueTextInfo options_action_arg_number[] =
2428 {
2429   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2430   { CA_ARG_0,                   "0"                             },
2431   { CA_ARG_1,                   "1"                             },
2432   { CA_ARG_2,                   "2"                             },
2433   { CA_ARG_3,                   "3"                             },
2434   { CA_ARG_4,                   "4"                             },
2435   { CA_ARG_5,                   "5"                             },
2436   { CA_ARG_10,                  "10"                            },
2437   { CA_ARG_100,                 "100"                           },
2438   { CA_ARG_1000,                "1000"                          },
2439   { CA_ARG_UNDEFINED,           " "                             },
2440   { CA_ARG_NUMBER_MIN,          "min"                           },
2441   { CA_ARG_NUMBER_MAX,          "max"                           },
2442   { CA_ARG_UNDEFINED,           " "                             },
2443   { CA_ARG_NUMBER_RESET,        "reset"                         },
2444   { CA_ARG_UNDEFINED,           " "                             },
2445   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2446   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2447   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2448   { CA_ARG_UNDEFINED,           " "                             },
2449   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2450   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2451   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2452   { CA_ARG_UNDEFINED,           " "                             },
2453   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2454   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2455   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2456   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2457   { CA_ARG_UNDEFINED,           " "                             },
2458   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2459   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2460   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2461   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2462
2463   { -1,                         NULL                            }
2464 };
2465
2466 static struct ValueTextInfo options_action_arg_value[] =
2467 {
2468   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2469   { CA_ARG_0,                   "0"                             },
2470   { CA_ARG_1,                   "1"                             },
2471   { CA_ARG_2,                   "2"                             },
2472   { CA_ARG_3,                   "3"                             },
2473   { CA_ARG_4,                   "4"                             },
2474   { CA_ARG_5,                   "5"                             },
2475   { CA_ARG_10,                  "10"                            },
2476   { CA_ARG_100,                 "100"                           },
2477   { CA_ARG_1000,                "1000"                          },
2478   { CA_ARG_UNDEFINED,           " "                             },
2479   { CA_ARG_NUMBER_MIN,          "min"                           },
2480   { CA_ARG_NUMBER_MAX,          "max"                           },
2481   { CA_ARG_UNDEFINED,           " "                             },
2482   { CA_ARG_NUMBER_RESET,        "reset"                         },
2483   { CA_ARG_UNDEFINED,           " "                             },
2484   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2485   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2486   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2487   { CA_ARG_UNDEFINED,           " "                             },
2488   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2489   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2490   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2491   { CA_ARG_UNDEFINED,           " "                             },
2492   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2493   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2494   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2495   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2496   { CA_ARG_UNDEFINED,           " "                             },
2497   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2498   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2499   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2500   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2501   { CA_ARG_UNDEFINED,           " "                             },
2502   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2503   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2504   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2505   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2506
2507   { -1,                         NULL                            }
2508 };
2509
2510 static struct ValueTextInfo options_action_arg_envelope[] =
2511 {
2512   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2513   { CA_ARG_1,                   "1"                             },
2514   { CA_ARG_2,                   "2"                             },
2515   { CA_ARG_3,                   "3"                             },
2516   { CA_ARG_4,                   "4"                             },
2517   { CA_ARG_UNDEFINED,           " "                             },
2518   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2519   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2520   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2521   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2522
2523   { -1,                         NULL                            }
2524 };
2525
2526 static struct ValueTextInfo options_action_arg_key[] =
2527 {
2528   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2529   { CA_ARG_1,                   "1"                             },
2530   { CA_ARG_2,                   "2"                             },
2531   { CA_ARG_3,                   "3"                             },
2532   { CA_ARG_4,                   "4"                             },
2533   { CA_ARG_5,                   "5"                             },
2534   { CA_ARG_6,                   "6"                             },
2535   { CA_ARG_7,                   "7"                             },
2536   { CA_ARG_8,                   "8"                             },
2537   { CA_ARG_UNDEFINED,           " "                             },
2538   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2539   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2540   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2541   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2542
2543   { -1,                         NULL                            }
2544 };
2545
2546 static struct ValueTextInfo options_action_arg_speed[] =
2547 {
2548   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2549   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2550   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2551   { CA_ARG_SPEED_SLOW,          "slow"                          },
2552   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2553   { CA_ARG_SPEED_FAST,          "fast"                          },
2554   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2555   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2556   { CA_ARG_UNDEFINED,           " "                             },
2557   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2558   { CA_ARG_SPEED_FASTER,        "faster"                        },
2559   { CA_ARG_UNDEFINED,           " "                             },
2560   { CA_ARG_SPEED_RESET,         "reset"                         },
2561
2562   { -1,                         NULL                            }
2563 };
2564
2565 static struct ValueTextInfo options_action_arg_shield[] =
2566 {
2567   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2568   { CA_ARG_SHIELD_OFF,          "off"                           },
2569   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2570   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2571
2572   { -1,                         NULL                            }
2573 };
2574
2575 static struct ValueTextInfo options_action_arg_artwork[] =
2576 {
2577   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2578   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2579   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2580   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2581   { CA_ARG_UNDEFINED,           " "                             },
2582   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2583
2584   { -1,                         NULL                            }
2585 };
2586
2587 static struct ValueTextInfo options_action_arg_gravity[] =
2588 {
2589   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2590   { CA_ARG_GRAVITY_ON,          "on"                            },
2591   { CA_ARG_GRAVITY_OFF,         "off"                           },
2592   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2593
2594   { -1,                         NULL                            }
2595 };
2596
2597 static struct ValueTextInfo options_action_arg_direction[] =
2598 {
2599   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2600   { CA_ARG_DIRECTION_NONE,      "none"                          },
2601   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2602   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2603   { CA_ARG_DIRECTION_UP,        "up"                            },
2604   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2605   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2606   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2607
2608   { -1,                         NULL                            }
2609 };
2610
2611 static struct ValueTextInfo options_action_arg_scan_mode[] =
2612 {
2613   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2614   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2615   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2616
2617   { -1,                         NULL                            }
2618 };
2619
2620 static struct ValueTextInfo options_action_arg_inventory[] =
2621 {
2622   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2623   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2624   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2625   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2626   { CA_ARG_UNDEFINED,           " "                             },
2627   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2628   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2629   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2630   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2631   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2632   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2633   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2634   { CA_ARG_UNDEFINED,           " "                             },
2635   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2636
2637   { -1,                         NULL                            }
2638 };
2639
2640 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2641 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2642 {
2643   { -1,                         NULL                            }
2644 };
2645
2646 static struct ValueTextInfo options_group_choice_mode[] =
2647 {
2648   { ANIM_RANDOM,                "random"                        },
2649   { ANIM_LOOP,                  "loop"                          },
2650   { ANIM_LINEAR,                "linear"                        },
2651   { ANIM_PINGPONG,              "pingpong"                      },
2652   { ANIM_PINGPONG2,             "pingpong 2"                    },
2653   { ANIM_LEVEL_NR,              "level number"                  },
2654
2655   { -1,                         NULL                            }
2656 };
2657
2658 static struct ValueTextInfo options_bd_scheduling_type[] =
2659 {
2660   { GD_SCHEDULING_MILLISECONDS,   "Milliseconds"                },
2661   { GD_SCHEDULING_BD1,            "BD1"                         },
2662   { GD_SCHEDULING_BD2,            "BD2"                         },
2663   { GD_SCHEDULING_PLCK,           "Construction Kit"            },
2664   { GD_SCHEDULING_CRDR,           "Crazy Dream 7"               },
2665   { GD_SCHEDULING_BD1_ATARI,      "Atari BD1"                   },
2666   { GD_SCHEDULING_BD2_PLCK_ATARI, "Atari BD2 / PLCK"            },
2667
2668   { -1,                           NULL                          }
2669 };
2670
2671 static struct ValueTextInfo *action_arg_modes[] =
2672 {
2673   options_action_mode_none,
2674   options_action_mode_assign,
2675   options_action_mode_add_remove,
2676   options_action_mode_calculate,
2677 };
2678
2679 static struct
2680 {
2681   int value;
2682   int mode;
2683   struct ValueTextInfo *options;
2684 }
2685 action_arg_options[] =
2686 {
2687   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2688   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2689   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2690   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2691   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2692   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2693   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2694   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2695   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2696   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2697   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2698   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2699   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2700   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2701   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2702   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2703   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2704   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2705   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2706   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2707   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2708   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2709
2710   { -1,                         FALSE,  NULL                            }
2711 };
2712
2713 static struct
2714 {
2715   int gadget_type_id;
2716   int x, y;
2717   int gadget_id;
2718   int gadget_id_align;
2719   int size;     // char size of selectbox or '-1' (dynamically determined)
2720   struct ValueTextInfo *options;
2721   int *value;
2722   char *text_above, *text_left, *text_right, *infotext;
2723 } selectbox_info[ED_NUM_SELECTBOX] =
2724 {
2725   // ---------- level and editor settings -------------------------------------
2726
2727   {
2728     ED_SELECTBOX_ID_TIME_OR_STEPS,
2729     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2730     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2731     -1,
2732     options_time_or_steps,
2733     &level.use_step_counter,
2734     NULL, NULL, "(0 => no limit)",      "time or step limit"
2735   },
2736   {
2737     ED_SELECTBOX_ID_TIME_SCORE_BASE,
2738     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2739     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2740     -1,
2741     options_time_score_base,
2742     &level.time_score_base,
2743     NULL, NULL, NULL,                   "time score for 1 or 10 seconds/steps"
2744   },
2745   {
2746     ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
2747     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2748     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2749     -1,
2750     options_game_engine_type,
2751     &level.game_engine_type,
2752     NULL, "game engine:", NULL,         "game engine"
2753   },
2754   {
2755     ED_SELECTBOX_ID_BD_SCHEDULING_TYPE,
2756     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
2757     GADGET_ID_BD_SCHEDULING_TYPE,       GADGET_ID_NONE,
2758     -1,
2759     options_bd_scheduling_type,
2760     &level.bd_scheduling_type,
2761     NULL, "scheduling type:", NULL,     "level timing"
2762   },
2763   {
2764     ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
2765     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2766     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2767     -1,
2768     options_levelset_save_mode,
2769     &levelset_save_mode,
2770     "Action:", NULL, NULL,              "action when saving level set"
2771   },
2772
2773   // ---------- element settings: configure (several elements) ----------------
2774
2775   {
2776     ED_SELECTBOX_ID_WIND_DIRECTION,
2777     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2778     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2779     -1,
2780     options_wind_direction,
2781     &level.wind_direction_initial,
2782     NULL, "initial wind direction:", NULL,      "initial wind direction"
2783   },
2784   {
2785     ED_SELECTBOX_ID_PLAYER_SPEED,
2786     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2787     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2788     -1,
2789     options_player_speed,
2790     &level.initial_player_stepsize[0],
2791     NULL, "initial player speed:", NULL,        "initial player speed"
2792   },
2793   {
2794     ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
2795     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2796     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2797     -1,
2798     options_group_choice_mode,
2799     &level.mm_ball_choice_mode,
2800     NULL, "choice type:", NULL,         "type of content choice"
2801   },
2802
2803   // ---------- element settings: configure 1 (custom elements) ---------------
2804
2805   {
2806     ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
2807     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2808     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2809     -1,
2810     options_access_type,
2811     &custom_element.access_type,
2812     NULL, NULL, NULL,                   "type of access to this field"
2813   },
2814   {
2815     ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
2816     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2817     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2818     -1,
2819     options_access_layer,
2820     &custom_element.access_layer,
2821     NULL, NULL, NULL,                   "layer of access for this field"
2822   },
2823   {
2824     ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
2825     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2826     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2827     -1,
2828     options_access_protected,
2829     &custom_element.access_protected,
2830     NULL, NULL, NULL,                   "protected access for this field"
2831   },
2832   {
2833     ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
2834     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2835     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2836     -1,
2837     options_access_direction,
2838     &custom_element.access_direction,
2839     NULL, "from", NULL,                 "access direction for this field"
2840   },
2841   {
2842     ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
2843     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2844     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2845     -1,
2846     options_walk_to_action,
2847     &custom_element.walk_to_action,
2848     NULL, NULL, NULL,                   "diggable/collectible/pushable"
2849   },
2850
2851   // ---------- element settings: configure 2 (custom elements) ---------------
2852
2853   {
2854     ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
2855     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2856     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2857     -1,
2858     options_move_pattern,
2859     &custom_element.move_pattern,
2860     NULL, "can move", NULL,             "element move pattern"
2861   },
2862   {
2863     ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
2864     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2865     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2866     -1,
2867     options_move_direction,
2868     &custom_element.move_direction_initial,
2869     NULL, "starts moving", NULL,        "initial element move direction"
2870   },
2871   {
2872     ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
2873     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2874     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2875     -1,
2876     options_move_stepsize,
2877     &custom_element.move_stepsize,
2878     NULL, "move/fall speed", NULL,      "speed of element movement"
2879   },
2880   {
2881     ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
2882     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2883     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2884     -1,
2885     options_move_leave_type,
2886     &custom_element.move_leave_type,
2887     // left text with leading spaces to place gadget next to "can dig" gadget
2888     // (needed because drawing area gadgets created after selectbox gadgets)
2889     // NULL, "can dig:    can", ":",    "leave behind or change element"
2890     NULL, "            can", ":",       "leave behind or change element"
2891   },
2892   {
2893     ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
2894     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2895     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2896     -1,
2897     options_smash_targets,
2898     &custom_element.smash_targets,
2899     NULL, "can smash", NULL,            "elements that can be smashed"
2900   },
2901   {
2902     ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
2903     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2904     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2905     -1,
2906     options_slippery_type,
2907     &custom_element.slippery_type,
2908     NULL, "slippery", NULL,             "where other elements fall down"
2909   },
2910   {
2911     ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
2912     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2913     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2914     -1,
2915     options_deadliness,
2916     &custom_element.deadliness,
2917     NULL, "deadly when", NULL,          "deadliness of element"
2918   },
2919   {
2920     ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
2921     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2922     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2923     -1,
2924     options_explosion_type,
2925     &custom_element.explosion_type,
2926     NULL, "can explode", NULL,          "explosion type"
2927   },
2928
2929   // ---------- element settings: advanced (custom elements) ------------------
2930
2931   {
2932     ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
2933     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2934     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2935     -1,
2936     options_time_units,
2937     &custom_element_change.delay_frames,
2938     NULL, "delay time given in", NULL,  "delay time units for change"
2939   },
2940   {
2941     ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
2942     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2943     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2944     -1,
2945     options_change_direct_action,
2946     &custom_element_change.direct_action,
2947     NULL, NULL, NULL,                   "type of direct action"
2948   },
2949   {
2950     ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
2951     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2952     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2953     -1,
2954     options_change_other_action,
2955     &custom_element_change.other_action,
2956     NULL, NULL, "element:",             "type of other element action"
2957   },
2958   {
2959     ED_SELECTBOX_ID_CHANGE_SIDE,
2960     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2961     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2962     -1,
2963     options_change_trigger_side,
2964     &custom_element_change.trigger_side,
2965     NULL, "at", "side",                 "element side triggering change"
2966   },
2967   {
2968     ED_SELECTBOX_ID_CHANGE_PLAYER,
2969     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2970     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2971     -1,
2972     options_change_trigger_player,
2973     &custom_element_change.trigger_player,
2974     NULL, "player:", " ",               "player that causes change"
2975   },
2976   {
2977     ED_SELECTBOX_ID_CHANGE_PAGE,
2978     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2979     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2980     -1,
2981     options_change_trigger_page,
2982     &custom_element_change.trigger_page,
2983     NULL, "page:", NULL,                "change page that causes change"
2984   },
2985   {
2986     ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
2987     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2988     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2989     -1,
2990     options_change_replace_when,
2991     &custom_element_change.replace_when,
2992     NULL, "replace when", NULL,         "which elements can be replaced"
2993   },
2994   {
2995     ED_SELECTBOX_ID_ACTION_TYPE,
2996     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
2997     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
2998     15,
2999     options_action_type,
3000     &custom_element_change.action_type,
3001     NULL, NULL, NULL,                   "action on specified condition"
3002   },
3003   {
3004     ED_SELECTBOX_ID_ACTION_MODE,
3005     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3006     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
3007     -1,
3008     options_action_mode_none,
3009     &custom_element_change.action_mode,
3010     NULL, NULL, NULL,                   "action operator"
3011   },
3012   {
3013     ED_SELECTBOX_ID_ACTION_ARG,
3014     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
3015     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
3016     -1,
3017     options_action_arg_none,
3018     &custom_element_change.action_arg,
3019     NULL, NULL, NULL,                   "action parameter"
3020   },
3021   {
3022     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
3023     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
3024     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
3025     3,
3026     options_change_page,
3027     &custom_element.current_change_page,
3028     NULL, NULL, NULL,                   "element change page"
3029   },
3030
3031   // ---------- element settings: configure (group elements) ------------------
3032
3033   {
3034     ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
3035     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3036     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
3037     -1,
3038     options_group_choice_mode,
3039     &group_element_info.choice_mode,
3040     NULL, "choice type:", NULL,         "type of group element choice"
3041   },
3042 };
3043
3044 static struct
3045 {
3046   int gadget_type_id;
3047   int x, y;
3048   int gadget_id;
3049   int gadget_id_align;
3050   int size;
3051   char *text;
3052   char *text_above, *text_left, *text_right, *infotext;
3053 } textbutton_info[ED_NUM_TEXTBUTTONS] =
3054 {
3055   // ---------- level and editor settings (tabs) ------------------------------
3056
3057   {
3058     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
3059     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
3060     GADGET_ID_LEVELCONFIG_LEVEL,        GADGET_ID_NONE,
3061     8,                                  "Level",
3062     NULL, NULL, NULL,                   "Configure level settings"
3063   },
3064   {
3065     ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
3066     -1,                                 -1,
3067     GADGET_ID_LEVELCONFIG_LEVELSET,     GADGET_ID_LEVELCONFIG_LEVEL,
3068     8,                                  "Levelset",
3069     NULL, NULL, NULL,                   "Update this or create new level set"
3070   },
3071   {
3072     ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
3073     -1,                                 -1,
3074     GADGET_ID_LEVELCONFIG_EDITOR,       GADGET_ID_LEVELCONFIG_LEVELSET,
3075     8,                                  "Editor",
3076     NULL, NULL, NULL,                   "Configure editor settings"
3077   },
3078   {
3079     ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE,
3080     -1,                                 -1,
3081     GADGET_ID_LEVELCONFIG_ENGINE,       GADGET_ID_LEVELCONFIG_EDITOR,
3082     8,                                  "Engine",
3083     NULL, NULL, NULL,                   "Configure engine settings"
3084   },
3085
3086   // ---------- element settings (tabs) ---------------------------------------
3087
3088   {
3089     ED_TEXTBUTTON_ID_PROPERTIES_INFO,
3090     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
3091     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
3092     8,                                  "Info",
3093     NULL, NULL, NULL,                   "Show information about element"
3094   },
3095   {
3096     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
3097     -1,                                 -1,
3098     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
3099     8,                                  "Config",
3100     NULL, NULL, NULL,                   "Configure element properties"
3101   },
3102   {
3103     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
3104     -1,                                 -1,
3105     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
3106     8,                                  "Config 1",
3107     NULL, NULL, NULL,                   "Configure element properties, part 1"
3108   },
3109   {
3110     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
3111     -1,                                 -1,
3112     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
3113     8,                                  "Config 2",
3114     NULL, NULL, NULL,                   "Configure element properties, part 2"
3115   },
3116   {
3117     ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
3118     -1,                                 -1,
3119     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
3120     8,                                  "Change",
3121     NULL, NULL, NULL,                   "Configure custom element change pages"
3122   },
3123
3124   // ---------- level and editor settings (buttons) ---------------------------
3125
3126   {
3127     ED_TEXTBUTTON_ID_SAVE_LEVELSET,
3128     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
3129     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
3130     -1,                                 "Save",
3131     NULL, NULL, NULL,                   "Update or create level set"
3132   },
3133   {
3134     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
3135     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3136     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
3137     -1,                                 "Save",
3138     NULL, NULL,                         "this level as level template",
3139     "Save current settings as new template"
3140   },
3141
3142   // ---------- element settings (buttons) ------------------------------------
3143
3144   {
3145     ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
3146     -1,                                 -1,
3147     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
3148     -1,                                 "Save",
3149     NULL, " ",                          "As Template",
3150     "Save current settings as new template"
3151   },
3152   {
3153     ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
3154     -1,                                 -1,
3155     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
3156     -1,                                 "New",
3157     NULL, NULL, NULL,                   "Add new change page"
3158   },
3159   {
3160     ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
3161     -1,                                 -1,
3162     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
3163     -1,                                 "Delete",
3164     NULL, NULL, NULL,                   "Delete current change page"
3165   },
3166 };
3167
3168 static struct
3169 {
3170   int gadget_type_id;
3171   int graphic;
3172   int x, y;
3173   int gadget_id;
3174   int gadget_id_align;
3175   char *text_left, *text_right, *infotext;
3176 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
3177 {
3178   {
3179     ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
3180     IMG_EDITOR_COUNTER_DOWN,
3181     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3182     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
3183     NULL, NULL,                         "select previous change page"
3184   },
3185   {
3186     ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
3187     IMG_EDITOR_COUNTER_UP,
3188     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3189     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
3190     NULL, "change page",                "select next change page"
3191   },
3192   {
3193     ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
3194     IMG_GFX_EDITOR_BUTTON_CP_COPY,
3195     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3196     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
3197     " ", NULL,                          "copy settings from this change page"
3198   },
3199   {
3200     ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
3201     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
3202     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
3203     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
3204     NULL, NULL,                         "paste settings to this change page"
3205   },
3206 };
3207
3208 static struct
3209 {
3210   int x, y;
3211 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
3212
3213 static struct
3214 {
3215   int gadget_type_id;
3216   int graphic;
3217   int gadget_id;
3218   char *infotext;
3219 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
3220 {
3221   {
3222     ED_SCROLLBUTTON_ID_AREA_UP,
3223     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
3224     GADGET_ID_SCROLL_UP,
3225     "scroll level editing area up"
3226   },
3227   {
3228     ED_SCROLLBUTTON_ID_AREA_DOWN,
3229     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
3230     GADGET_ID_SCROLL_DOWN,
3231     "scroll level editing area down"
3232   },
3233   {
3234     ED_SCROLLBUTTON_ID_AREA_LEFT,
3235     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
3236     GADGET_ID_SCROLL_LEFT,
3237     "scroll level editing area left"
3238   },
3239   {
3240     ED_SCROLLBUTTON_ID_AREA_RIGHT,
3241     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
3242     GADGET_ID_SCROLL_RIGHT,
3243     "scroll level editing area right"
3244   },
3245   {
3246     ED_SCROLLBUTTON_ID_LIST_UP,
3247     IMG_EDITOR_PALETTE_SCROLL_UP,
3248     GADGET_ID_SCROLL_LIST_UP,
3249     "scroll element list up ('Page Up')"
3250   },
3251   {
3252     ED_SCROLLBUTTON_ID_LIST_DOWN,
3253     IMG_EDITOR_PALETTE_SCROLL_DOWN,
3254     GADGET_ID_SCROLL_LIST_DOWN,
3255     "scroll element list down ('Page Down')"
3256   },
3257 };
3258
3259 static struct
3260 {
3261   int x, y;
3262   int width, height;
3263   int wheel_x, wheel_y;
3264   int wheel_width, wheel_height;
3265 } scrollbar_pos[ED_NUM_SCROLLBARS];
3266
3267 static struct
3268 {
3269   int gadget_type_id;
3270   int graphic;
3271   int type;
3272   int gadget_id;
3273   char *infotext;
3274 } scrollbar_info[ED_NUM_SCROLLBARS] =
3275 {
3276   {
3277     ED_SCROLLBAR_ID_AREA_HORIZONTAL,
3278     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3279     GD_TYPE_SCROLLBAR_HORIZONTAL,
3280     GADGET_ID_SCROLL_HORIZONTAL,
3281     "scroll level editing area horizontally"
3282   },
3283   {
3284     ED_SCROLLBAR_ID_AREA_VERTICAL,
3285     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3286     GD_TYPE_SCROLLBAR_VERTICAL,
3287     GADGET_ID_SCROLL_VERTICAL,
3288     "scroll level editing area vertically"
3289   },
3290   {
3291     ED_SCROLLBAR_ID_LIST_VERTICAL,
3292     IMG_EDITOR_PALETTE_SCROLLBAR,
3293     GD_TYPE_SCROLLBAR_VERTICAL,
3294     GADGET_ID_SCROLL_LIST_VERTICAL,
3295     "scroll element list vertically"
3296   }
3297 };
3298
3299
3300 static struct
3301 {
3302   int gadget_type_id;
3303   int x, y;
3304   int gadget_id;
3305   int gadget_id_align;
3306   int radio_button_nr;
3307   int *value;
3308   int checked_value;
3309   char *text_left, *text_right, *infotext;
3310 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3311 {
3312   {
3313     ED_RADIOBUTTON_ID_PERCENTAGE,
3314     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3315     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3316     RADIO_NR_RANDOM_ELEMENTS,
3317     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3318     " ", "percentage",                  "use percentage for random elements"
3319   },
3320   {
3321     ED_RADIOBUTTON_ID_QUANTITY,
3322     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3323     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3324     RADIO_NR_RANDOM_ELEMENTS,
3325     &random_placement_method,           RANDOM_USE_QUANTITY,
3326     " ", "quantity",                    "use quantity for random elements"
3327   }
3328 };
3329
3330 static struct
3331 {
3332   int gadget_type_id;
3333   int x, y;
3334   int gadget_id;
3335   int gadget_id_align;
3336   boolean *value;
3337   char *text_above, *text_left, *text_right, *infotext;
3338 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3339 {
3340   // ---------- level and editor settings -------------------------------------
3341
3342   {
3343     ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
3344     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3345     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3346     &level.auto_count_gems,
3347     NULL, NULL,
3348     "automatically count gems needed",  "set counter to number of gems"
3349   },
3350   {
3351     ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
3352     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3353     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3354     &level.rate_time_over_score,
3355     NULL, NULL,
3356     "rate time/steps used over score",  "sort high scores by playing time/steps"
3357   },
3358   {
3359     ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
3360     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3361     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3362     &levelset_use_levelset_artwork,
3363     NULL, NULL,
3364     "use current custom artwork",       "use custom artwork of this level set"
3365   },
3366   {
3367     ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
3368     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3369     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3370     &levelset_copy_level_template,
3371     NULL, NULL,
3372     "copy current level template",      "copy level template of this level set"
3373   },
3374   {
3375     ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
3376     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3377     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3378     &random_placement_background_restricted,
3379     NULL, NULL,
3380     "restrict random placement to:",    "set random placement restriction"
3381   },
3382   {
3383     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
3384     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3385     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3386     &setup.editor.use_template_for_new_levels,
3387     "Template for new levels and CE/GE:", NULL,
3388     "use template for new levels",      "use template for level properties"
3389   },
3390   {
3391     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
3392     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3393     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3394     &level.use_custom_template,
3395     NULL, NULL,
3396     "use template for custom elements", "use template for custom properties"
3397   },
3398   {
3399     ED_CHECKBUTTON_ID_BD_INTERMISSION,
3400     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
3401     GADGET_ID_BD_INTERMISSION,          GADGET_ID_NONE,
3402     &level.bd_intermission,
3403     "Boulder Dash game engine settings:", NULL,
3404     "intermission",                     "level is an intermission level"
3405   },
3406   {
3407     ED_CHECKBUTTON_ID_BD_PAL_TIMING,
3408     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
3409     GADGET_ID_BD_PAL_TIMING,            GADGET_ID_NONE,
3410     &level.bd_pal_timing,
3411     NULL, NULL,
3412     "PAL timing",                       "use slower timer (like PAL C64)"
3413   },
3414   {
3415     ED_CHECKBUTTON_ID_BD_LINE_SHIFTING_BORDERS,
3416     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3417     GADGET_ID_BD_LINE_SHIFTING_BORDERS, GADGET_ID_NONE,
3418     &level.bd_line_shifting_borders,
3419     "Compatibility settings:", NULL,
3420     "line-shifting borders",            "use line-shifting wrap-around"
3421   },
3422   {
3423     ED_CHECKBUTTON_ID_BD_SCAN_FIRST_AND_LAST_ROW,
3424     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3425     GADGET_ID_BD_SCAN_FIRST_AND_LAST_ROW, GADGET_ID_NONE,
3426     &level.bd_scan_first_and_last_row,
3427     NULL, NULL,
3428     "scan first and last row",          "also process top/bottom border rows"
3429   },
3430   {
3431     ED_CHECKBUTTON_ID_BD_SHORT_EXPLOSIONS,
3432     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3433     GADGET_ID_BD_SHORT_EXPLOSIONS,      GADGET_ID_NONE,
3434     &level.bd_short_explosions,
3435     NULL, NULL,
3436     "short explosions",                 "use four game cycles for explosions"
3437   },
3438   {
3439     ED_CHECKBUTTON_ID_BD_GRAVITY_AFFECTS_ALL,
3440     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(9),
3441     GADGET_ID_BD_GRAVITY_AFFECTS_ALL,   GADGET_ID_NONE,
3442     &level.bd_gravity_affects_all,
3443     NULL, NULL,
3444     "gravity change affects everything", "gravity affects all falling objects"
3445   },
3446
3447   // ---------- element settings: configure (various elements) ----------------
3448
3449   {
3450     ED_CHECKBUTTON_ID_STICK_ELEMENT,
3451     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3452     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3453     &stick_element_properties_window,
3454     NULL, NULL,
3455     "stick this screen to edit content","stick this screen to edit content"
3456   },
3457   {
3458     ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
3459     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3460     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3461     &level.em_slippery_gems,
3462     NULL, NULL,
3463     "slip down from certain flat walls","use EM/DC style slipping behaviour"
3464   },
3465   {
3466     ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
3467     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3468     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3469     &level.em_explodes_by_fire,
3470     NULL, NULL,
3471     "explodes with chain reaction",     "use R'n'D style explosion behaviour"
3472   },
3473   {
3474     ED_CHECKBUTTON_ID_USE_SPRING_BUG,
3475     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3476     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3477     &level.use_spring_bug,
3478     NULL, NULL,
3479     "use spring pushing bug",           "use odd spring pushing behaviour"
3480   },
3481   {
3482     ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
3483     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3484     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3485     &level.use_time_orb_bug,
3486     NULL, NULL,
3487     "use time orb bug",                 "use odd time orb behaviour"
3488   },
3489   {
3490     ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
3491     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3492     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3493     &level.use_life_bugs,
3494     NULL, NULL,
3495     "use buggy element behaviour",      "use odd (historic) element behaviour"
3496   },
3497   {
3498     ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
3499     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3500     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3501     &level.ball_random,
3502     NULL, NULL,
3503     "create single random element",     "only create one element from content"
3504   },
3505   {
3506     ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
3507     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3508     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3509     &level.ball_active_initial,
3510     NULL, NULL,
3511     "magic ball initially activated",   "activate magic ball after level start"
3512   },
3513   {
3514     ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
3515     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3516     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3517     &level.grow_into_diggable,
3518     NULL, NULL,
3519     "can grow into anything diggable",  "grow into more than just sand"
3520   },
3521   {
3522     ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
3523     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3524     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3525     &level.sb_fields_needed,
3526     NULL, NULL,
3527     "all fields need to be filled",     "require all SB fields to be solved"
3528   },
3529   {
3530     ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
3531     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3532     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3533     &level.sb_objects_needed,
3534     NULL, NULL,
3535     "all objects need to be placed",    "require all SB objects to be solved"
3536   },
3537   {
3538     ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
3539     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3540     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3541     &level.auto_exit_sokoban,
3542     NULL, NULL,
3543     "exit level if all tasks solved",   "automatically finish Sokoban levels"
3544   },
3545   {
3546     ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
3547     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3548     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3549     &level.solved_by_one_player,
3550     NULL, NULL,
3551     "only one player must enter exit",  "level solved by first player in exit"
3552   },
3553   {
3554     ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
3555     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3556     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3557     &level.finish_dig_collect,
3558     NULL, NULL,
3559     "CE action on finished dig/collect", "only finished dig/collect triggers CE"
3560   },
3561   {
3562     ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
3563     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3564     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3565     &level.keep_walkable_ce,
3566     NULL, NULL,
3567     "keep walkable CE changed to player", "keep CE changing to player if walkable"
3568   },
3569   {
3570     ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
3571     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3572     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3573     &level.continuous_snapping,
3574     NULL, NULL,
3575     "continuous snapping",              "use snapping without releasing key"
3576   },
3577   {
3578     ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
3579     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3580     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3581     &level.block_snap_field,
3582     NULL, NULL,
3583     "block snapped field when snapping", "use snapping delay to show animation"
3584   },
3585   {
3586     ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
3587     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3588     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3589     &level.block_last_field,
3590     NULL, NULL,
3591     "block last field when moving",     "player blocks last field when moving"
3592   },
3593   {
3594     ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
3595     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3596     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3597     &level.sp_block_last_field,
3598     NULL, NULL,
3599     "block last field when moving",     "player blocks last field when moving"
3600   },
3601   {
3602     ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
3603     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3604     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3605     &level.instant_relocation,
3606     NULL, NULL,
3607     "no scrolling when relocating",     "player gets relocated without delay"
3608   },
3609   {
3610     ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
3611     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3612     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3613     &level.shifted_relocation,
3614     NULL, NULL,
3615     "no centering when relocating",     "level not centered after relocation"
3616   },
3617   {
3618     ED_CHECKBUTTON_ID_LAZY_RELOCATION,
3619     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3620     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3621     &level.lazy_relocation,
3622     NULL, NULL,
3623     "only redraw off-screen relocation","no redraw if relocation target visible"
3624   },
3625   {
3626     ED_CHECKBUTTON_ID_USE_START_ELEMENT,
3627     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3628     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3629     &level.use_start_element[0],
3630     NULL, NULL,
3631     "use level start element:",        "start level at this element's position"
3632   },
3633   {
3634     ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
3635     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3636     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3637     &level.use_artwork_element[0],
3638     NULL, NULL,
3639     "use artwork from element:",        "use player artwork from other element"
3640   },
3641   {
3642     ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
3643     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3644     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3645     &level.use_explosion_element[0],
3646     NULL, NULL,
3647     "use explosion from element:",      "use explosion properties from element"
3648   },
3649   {
3650     ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
3651     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3652     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3653     &level.initial_player_gravity[0],
3654     NULL, NULL,
3655     "use initial gravity",              "set initial player gravity"
3656   },
3657   {
3658     ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
3659     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3660     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3661     &level.use_initial_inventory[0],
3662     NULL, NULL,
3663     "use initial inventory:",           "use collected elements on level start"
3664   },
3665   {
3666     ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
3667     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3668     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3669     &level.can_pass_to_walkable,
3670     NULL, NULL,
3671     "can pass to walkable element",     "player can pass to empty or walkable"
3672   },
3673   {
3674     ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
3675     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3676     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3677     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3678     NULL, NULL,
3679     "can fall into acid (with gravity)","player can fall into acid pool"
3680   },
3681   {
3682     ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
3683     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3684     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3685     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3686     NULL, NULL,
3687     "can move into acid",               "element can move into acid pool"
3688   },
3689   {
3690     ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
3691     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3692     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3693     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3694     NULL, NULL,
3695     "deadly when colliding with",       "element is deadly when hitting player"
3696   },
3697   {
3698     ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS,
3699     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3700     GADGET_ID_BD_DIAGONAL_MOVEMENTS,    GADGET_ID_NONE,
3701     &level.bd_diagonal_movements,
3702     NULL, NULL,
3703     "can move diagonally",              "player can move diagonally"
3704   },
3705   {
3706     ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE,
3707     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3708     GADGET_ID_BD_TOPMOST_PLAYER_ACTIVE, GADGET_ID_NONE,
3709     &level.bd_topmost_player_active,
3710     NULL, NULL,
3711     "topmost player is active",         "use first player found on playfield"
3712   },
3713   {
3714     ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET,
3715     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3716     GADGET_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET, GADGET_ID_NONE,
3717     &level.bd_push_mega_rock_with_sweet,
3718     NULL, NULL,
3719     "mega rocks pushable with sweet",   "push mega rocks after eating sweet"
3720   },
3721   {
3722     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING,
3723     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3724     GADGET_ID_BD_MAGIC_WALL_WAIT_HATCHING, GADGET_ID_NONE,
3725     &level.bd_magic_wall_wait_hatching,
3726     NULL, NULL,
3727     "wait for player's birth",          "timer start waits for player's birth"
3728   },
3729   {
3730     ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA,
3731     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3732     GADGET_ID_BD_MAGIC_WALL_STOPS_AMOEBA, GADGET_ID_NONE,
3733     &level.bd_magic_wall_stops_amoeba,
3734     NULL, NULL,
3735     "turn amoeba to diamonds",          "activation changes amoeba to diamonds"
3736   },
3737   {
3738     ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING,
3739     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3740     GADGET_ID_BD_AMOEBA_WAIT_FOR_HATCHING, GADGET_ID_NONE,
3741     &level.bd_amoeba_wait_for_hatching,
3742     NULL, NULL,
3743     "wait for player's birth",          "timer start waits for player's birth"
3744   },
3745   {
3746     ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY,
3747     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3748     GADGET_ID_BD_AMOEBA_START_IMMEDIATELY, GADGET_ID_NONE,
3749     &level.bd_amoeba_start_immediately,
3750     NULL, NULL,
3751     "start growing immediately",        "start slow growth time immediately"
3752   },
3753   {
3754     ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA,
3755     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3756     GADGET_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA, GADGET_ID_NONE,
3757     &level.bd_amoeba_2_explode_by_amoeba,
3758     NULL, NULL,
3759     "explodes if touched by amoeba",    "amoeba 2 explodes if touched by amoeba"
3760   },
3761   {
3762     ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS,
3763     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3764     GADGET_ID_BD_VOODOO_COLLECTS_DIAMONDS, GADGET_ID_NONE,
3765     &level.bd_voodoo_collects_diamonds,
3766     NULL, NULL,
3767     "can collect diamonds",             "can collect diamonds for the player"
3768   },
3769   {
3770     ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER,
3771     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3772     GADGET_ID_BD_VOODOO_HURT_KILLS_PLAYER, GADGET_ID_NONE,
3773     &level.bd_voodoo_hurt_kills_player,
3774     NULL, NULL,
3775     "player is killed if hurt",         "if hurt in any way, player is killed"
3776   },
3777   {
3778     ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK,
3779     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3780     GADGET_ID_BD_VOODOO_DIES_BY_ROCK,   GADGET_ID_NONE,
3781     &level.bd_voodoo_dies_by_rock,
3782     NULL, NULL,
3783     "killed by falling rock",           "can be killed by a falling rock"
3784   },
3785   {
3786     ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION,
3787     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3788     GADGET_ID_BD_VOODOO_VANISH_BY_EXPLOSION, GADGET_ID_NONE,
3789     &level.bd_voodoo_vanish_by_explosion,
3790     NULL, NULL,
3791     "disappears in explosions",         "can be destroyed by explosions"
3792   },
3793   {
3794     ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
3795     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3796     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3797     &level.envelope[0].autowrap,
3798     NULL, NULL,
3799     "auto-wrap",                        "automatically wrap envelope text"
3800   },
3801   {
3802     ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
3803     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3804     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3805     &level.envelope[0].centered,
3806     NULL, " ",
3807     "centered",                         "automatically center envelope text"
3808   },
3809   {
3810     ED_CHECKBUTTON_ID_MM_LASER_RED,
3811     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3812     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3813     &level.mm_laser_red,
3814     "choose color components for laser:", NULL,
3815     "red",                              "use red color components in laser"
3816   },
3817   {
3818     ED_CHECKBUTTON_ID_MM_LASER_GREEN,
3819     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3820     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3821     &level.mm_laser_green,
3822     NULL, NULL,
3823     "green",                            "use green color components in laser"
3824   },
3825   {
3826     ED_CHECKBUTTON_ID_MM_LASER_BLUE,
3827     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3828     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3829     &level.mm_laser_blue,
3830     NULL, NULL,
3831     "blue",                             "use blue color components in laser"
3832   },
3833   {
3834     ED_CHECKBUTTON_ID_DF_LASER_RED,
3835     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3836     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3837     &level.df_laser_red,
3838     "choose color components for laser:", NULL,
3839     "red",                              "use red color components in laser"
3840   },
3841   {
3842     ED_CHECKBUTTON_ID_DF_LASER_GREEN,
3843     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3844     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3845     &level.df_laser_green,
3846     NULL, NULL,
3847     "green",                            "use green color components in laser"
3848   },
3849   {
3850     ED_CHECKBUTTON_ID_DF_LASER_BLUE,
3851     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3852     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3853     &level.df_laser_blue,
3854     NULL, NULL,
3855     "blue",                             "use blue color components in laser"
3856   },
3857   {
3858     ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
3859     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3860     GADGET_ID_ROTATE_MM_BALL_CONTENT,   GADGET_ID_NONE,
3861     &level.rotate_mm_ball_content,
3862     NULL, NULL,
3863     "randomly rotate created content",  "randomly rotate newly created content"
3864   },
3865   {
3866     ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
3867     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3868     GADGET_ID_EXPLODE_MM_BALL,          GADGET_ID_NONE,
3869     &level.explode_mm_ball,
3870     NULL, NULL,
3871     "explode ball instead of melting",  "use explosion to release ball content"
3872   },
3873
3874   // ---------- element settings: configure 1 (custom elements) ---------------
3875
3876   {
3877     ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
3878     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3879     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3880     &custom_element.use_gfx_element,
3881     NULL, NULL,
3882     "use graphic of element:",          "use existing element graphic"
3883   },
3884   {
3885     ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
3886     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3887     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3888     &level.use_custom_template,
3889     NULL, NULL,
3890     "use template",                     "use template for custom properties"
3891   },
3892   {
3893     ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
3894     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3895     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3896     &custom_element_properties[EP_ACCESSIBLE],
3897     NULL, NULL,
3898     NULL,                               "player can walk to or pass this field"
3899   },
3900   {
3901     ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
3902     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3903     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3904     &custom_element_properties[EP_GRAVITY_REACHABLE],
3905     NULL, NULL,
3906     "reachable despite gravity",        "player can walk/dig despite gravity"
3907   },
3908   {
3909     ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
3910     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3911     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3912     &custom_element.use_last_ce_value,
3913     NULL, NULL,
3914     "use last CE value after change",   "use last CE value after change"
3915   },
3916   {
3917     ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
3918     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3919     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3920     &custom_element_properties[EP_WALK_TO_OBJECT],
3921     NULL, NULL,
3922     NULL,                               "player can dig/collect/push element"
3923   },
3924   {
3925     ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
3926     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3927     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3928     &custom_element_properties[EP_INDESTRUCTIBLE],
3929     NULL, NULL,
3930     "indestructible",                   "element is indestructible"
3931   },
3932
3933   // ---------- element settings: configure 2 (custom elements) ---------------
3934
3935   {
3936     ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
3937     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3938     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
3939     &custom_element_properties[EP_CAN_MOVE],
3940     NULL, NULL,
3941     NULL,                               "element can move with some pattern"
3942   },
3943   {
3944     ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
3945     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3946     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
3947     &custom_element_properties[EP_CAN_FALL],
3948     NULL, NULL,
3949     "can fall",                         "element can fall down"
3950   },
3951   {
3952     ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
3953     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
3954     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
3955     &custom_element_properties[EP_CAN_SMASH],
3956     NULL, " ",
3957     NULL,                               "element can smash other elements"
3958   },
3959   {
3960     ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
3961     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3962     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
3963     &custom_element_properties[EP_SLIPPERY],
3964     NULL, NULL,
3965     NULL,                               "other elements can fall down from it"
3966   },
3967   {
3968     ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
3969     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3970     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
3971     &custom_element_properties[EP_DEADLY],
3972     NULL, NULL,
3973     NULL,                               "element can kill the player"
3974   },
3975   {
3976     ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
3977     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3978     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
3979     &custom_element_properties[EP_CAN_EXPLODE],
3980     NULL, NULL,
3981     NULL,                               "element can explode"
3982   },
3983   {
3984     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
3985     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
3986     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
3987     &custom_element_properties[EP_EXPLODES_BY_FIRE],
3988     NULL, NULL,
3989     "by fire",                          "element can explode by fire/explosion"
3990   },
3991   {
3992     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
3993     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3994     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
3995     &custom_element_properties[EP_EXPLODES_SMASHED],
3996     NULL, " ",
3997     "smashed",                          "element can explode when smashed"
3998   },
3999   {
4000     ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
4001     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
4002     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
4003     &custom_element_properties[EP_EXPLODES_IMPACT],
4004     NULL, " ",
4005     "impact",                           "element can explode on impact"
4006   },
4007
4008   // ---------- element settings: advanced (custom elements) ------------------
4009
4010   {
4011     ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
4012     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
4013     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
4014     &custom_element_change.can_change,
4015     NULL, NULL,
4016     "element changes to:",              "change element on specified condition"
4017   },
4018   {
4019     ED_CHECKBUTTON_ID_CHANGE_DELAY,
4020     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
4021     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
4022     &custom_element_change_events[CE_DELAY],
4023     NULL, NULL,
4024     NULL,                               "element changes after delay"
4025   },
4026   {
4027     ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
4028     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
4029     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
4030     &custom_element_change_events[CE_BY_DIRECT_ACTION],
4031     NULL, NULL,
4032     NULL,                               "element changes by direct action"
4033   },
4034   {
4035     ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
4036     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
4037     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
4038     &custom_element_change_events[CE_BY_OTHER_ACTION],
4039     NULL, NULL,
4040     NULL,                               "element changes by other element"
4041   },
4042   {
4043     ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
4044     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
4045     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
4046     &custom_element_change.explode,
4047     NULL, NULL,
4048     "explode instead of change",        "element explodes instead of change"
4049   },
4050   {
4051     ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
4052     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
4053     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
4054     &custom_element_change.use_target_content,
4055     NULL, NULL,
4056     "use extended change target:",      "element changes to more elements"
4057   },
4058   {
4059     ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
4060     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
4061     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
4062     &custom_element_change.only_if_complete,
4063     NULL, NULL,
4064     "replace all or nothing",           "only replace when all can be changed"
4065   },
4066   {
4067     ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
4068     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
4069     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
4070     &custom_element_change.use_random_replace,
4071     NULL, NULL,
4072     NULL,                               "use percentage for random replace"
4073   },
4074   {
4075     ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
4076     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
4077     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
4078     &custom_element_change.has_action,
4079     NULL, NULL,
4080     NULL,                               "execute action on specified condition"
4081   },
4082 };
4083
4084 static struct
4085 {
4086   int gadget_type_id;
4087   int x, y;
4088   int xoffset, yoffset;
4089   int gadget_id;
4090   int gadget_id_align;
4091   int *value;
4092   int area_xsize, area_ysize;
4093   char *text_left, *text_right, *text_above, *text_below, *infotext;
4094 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
4095 {
4096   // ---------- level playfield content ---------------------------------------
4097
4098   {
4099     ED_DRAWING_ID_DRAWING_LEVEL,
4100     0,                                  0,
4101     0,                                  0,
4102     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
4103     NULL,
4104     -1, -1,     // these values are not constant, but can change at runtime
4105     NULL, NULL, NULL, NULL,             NULL
4106   },
4107
4108   // ---------- yam yam content -----------------------------------------------
4109
4110   {
4111     ED_DRAWING_ID_YAMYAM_CONTENT_0,
4112     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4113     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
4114     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
4115     &level.yamyam_content[0].e[0][0],   3, 3,
4116     NULL, NULL, NULL, "1",              NULL
4117   },
4118   {
4119     ED_DRAWING_ID_YAMYAM_CONTENT_1,
4120     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4121     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
4122     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
4123     &level.yamyam_content[1].e[0][0],   3, 3,
4124     NULL, NULL, NULL, "2",              NULL
4125   },
4126   {
4127     ED_DRAWING_ID_YAMYAM_CONTENT_2,
4128     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4129     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
4130     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
4131     &level.yamyam_content[2].e[0][0],   3, 3,
4132     NULL, NULL, NULL, "3",              NULL
4133   },
4134   {
4135     ED_DRAWING_ID_YAMYAM_CONTENT_3,
4136     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4137     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
4138     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
4139     &level.yamyam_content[3].e[0][0],   3, 3,
4140     NULL, NULL, NULL, "4",              NULL
4141   },
4142   {
4143     ED_DRAWING_ID_YAMYAM_CONTENT_4,
4144     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4145     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
4146     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
4147     &level.yamyam_content[4].e[0][0],   3, 3,
4148     NULL, NULL, NULL, "5",              NULL
4149   },
4150   {
4151     ED_DRAWING_ID_YAMYAM_CONTENT_5,
4152     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4153     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
4154     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
4155     &level.yamyam_content[5].e[0][0],   3, 3,
4156     NULL, NULL, NULL, "6",              NULL
4157   },
4158   {
4159     ED_DRAWING_ID_YAMYAM_CONTENT_6,
4160     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4161     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
4162     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
4163     &level.yamyam_content[6].e[0][0],   3, 3,
4164     NULL, NULL, NULL, "7",              NULL
4165   },
4166   {
4167     ED_DRAWING_ID_YAMYAM_CONTENT_7,
4168     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
4169     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
4170     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
4171     &level.yamyam_content[7].e[0][0],   3, 3,
4172     NULL, NULL, NULL, "8",              NULL
4173   },
4174
4175   // ---------- magic ball content --------------------------------------------
4176
4177   {
4178     ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
4179     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4180     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
4181     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
4182     &level.ball_content[0].e[0][0],     3, 3,
4183     NULL, NULL, NULL, "1",              NULL
4184   },
4185   {
4186     ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
4187     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4188     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
4189     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
4190     &level.ball_content[1].e[0][0],     3, 3,
4191     NULL, NULL, NULL, "2",              NULL
4192   },
4193   {
4194     ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
4195     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4196     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
4197     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
4198     &level.ball_content[2].e[0][0],     3, 3,
4199     NULL, NULL, NULL, "3",              NULL
4200   },
4201   {
4202     ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
4203     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4204     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
4205     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
4206     &level.ball_content[3].e[0][0],     3, 3,
4207     NULL, NULL, NULL, "4",              NULL
4208   },
4209   {
4210     ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
4211     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4212     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
4213     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
4214     &level.ball_content[4].e[0][0],     3, 3,
4215     NULL, NULL, NULL, "5",              NULL
4216   },
4217   {
4218     ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
4219     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4220     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
4221     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
4222     &level.ball_content[5].e[0][0],     3, 3,
4223     NULL, NULL, NULL, "6",              NULL
4224   },
4225   {
4226     ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
4227     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4228     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
4229     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
4230     &level.ball_content[6].e[0][0],     3, 3,
4231     NULL, NULL, NULL, "7",              NULL
4232   },
4233   {
4234     ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
4235     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
4236     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
4237     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
4238     &level.ball_content[7].e[0][0],     3, 3,
4239     NULL, NULL, NULL, "8",              NULL
4240   },
4241
4242   // ---------- android content -----------------------------------------------
4243
4244   {
4245     ED_DRAWING_ID_ANDROID_CONTENT,
4246     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
4247     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4248     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
4249     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
4250     NULL, NULL, "elements:", NULL,      "elements android can clone"
4251   },
4252
4253   // ---------- amoeba content ------------------------------------------------
4254
4255   {
4256     ED_DRAWING_ID_AMOEBA_CONTENT,
4257     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
4258     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4259     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
4260     &level.amoeba_content,              1, 1,
4261     "content:", NULL, NULL, NULL,       "amoeba content"
4262   },
4263
4264   // ---------- BD amoeba content ------------------------------------------------
4265
4266   {
4267     ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG,
4268     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4269     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4270     GADGET_ID_BD_AMOEBA_CONTENT_TOO_BIG, GADGET_ID_NONE,
4271     &level.bd_amoeba_content_too_big,   1, 1,
4272     "if too big, changes to:", NULL, NULL, NULL,        "BD amoeba content if too big"
4273   },
4274   {
4275     ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED,
4276     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4277     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4278     GADGET_ID_BD_AMOEBA_CONTENT_ENCLOSED, GADGET_ID_NONE,
4279     &level.bd_amoeba_content_enclosed,  1, 1,
4280     "if enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba content if enclosed"
4281   },
4282
4283   // ---------- BD amoeba 2 content ------------------------------------------------
4284
4285   {
4286     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG,
4287     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(7),
4288     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4289     GADGET_ID_BD_AMOEBA_2_CONTENT_TOO_BIG, GADGET_ID_NONE,
4290     &level.bd_amoeba_2_content_too_big, 1, 1,
4291     "if too big, changes to:", NULL, NULL, NULL,        "BD amoeba 2 content if too big"
4292   },
4293   {
4294     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED,
4295     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(8),
4296     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4297     GADGET_ID_BD_AMOEBA_2_CONTENT_ENCLOSED, GADGET_ID_NONE,
4298     &level.bd_amoeba_2_content_enclosed,        1, 1,
4299     "if enclosed, changes to:", NULL, NULL, NULL,       "BD amoeba 2 content if enclosed"
4300   },
4301   {
4302     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING,
4303     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(10),
4304     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4305     GADGET_ID_BD_AMOEBA_2_CONTENT_EXPLODING, GADGET_ID_NONE,
4306     &level.bd_amoeba_2_content_exploding,       1, 1,
4307     "if exploding, changes to:", NULL, NULL, NULL,      "BD amoeba 2 content if exploding"
4308   },
4309   {
4310     ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,
4311     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(11),
4312     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4313     GADGET_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE,   GADGET_ID_NONE,
4314     &level.bd_amoeba_2_content_looks_like,      1, 1,
4315     "use graphic of element:", NULL, NULL, NULL,        "BD amoeba 2 looks like this element"
4316   },
4317
4318   // ---------- level start element -------------------------------------------
4319
4320   {
4321     ED_DRAWING_ID_START_ELEMENT,
4322     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
4323     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4324     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
4325     &level.start_element[0],            1, 1,
4326     NULL, NULL, NULL, NULL,             "level start element"
4327   },
4328
4329   // ---------- player artwork element ----------------------------------------
4330
4331   {
4332     ED_DRAWING_ID_ARTWORK_ELEMENT,
4333     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
4334     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4335     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
4336     &level.artwork_element[0],          1, 1,
4337     NULL, NULL, NULL, NULL,             "element for player artwork"
4338   },
4339
4340   // ---------- player explosion element --------------------------------------
4341
4342   {
4343     ED_DRAWING_ID_EXPLOSION_ELEMENT,
4344     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
4345     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4346     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
4347     &level.explosion_element[0],        1, 1,
4348     NULL, NULL, NULL, NULL,             "element for player explosion"
4349   },
4350
4351   // ---------- player initial inventory --------------------------------------
4352
4353   {
4354     ED_DRAWING_ID_INVENTORY_CONTENT,
4355     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4356     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4357     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
4358     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
4359     NULL, NULL, NULL, NULL,             "content for initial inventory"
4360   },
4361
4362   // ---------- gray ball content -----------------------------------------
4363
4364   {
4365     ED_DRAWING_ID_MM_BALL_CONTENT,
4366     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4367     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4368     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
4369     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
4370     "content:", NULL, NULL, NULL,       "content for gray ball"
4371   },
4372
4373   // ---------- element settings: configure 1 (custom elements) ---------------
4374
4375   // ---------- custom graphic ------------------------------------------------
4376
4377   {
4378     ED_DRAWING_ID_CUSTOM_GRAPHIC,
4379     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4380     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4381     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
4382     &custom_element.gfx_element_initial, 1, 1,
4383     NULL, NULL, NULL, NULL,             "custom graphic element"
4384   },
4385
4386   // ---------- element settings: configure 2 (custom elements) ---------------
4387
4388   // ---------- custom content (when exploding) -------------------------------
4389
4390   {
4391     ED_DRAWING_ID_CUSTOM_CONTENT,
4392     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
4393     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4394     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
4395     &custom_element.content.e[0][0],    3, 3,
4396     "content:", NULL, NULL, NULL,       NULL
4397   },
4398
4399   // ---------- custom enter and leave element (when moving) ------------------
4400
4401   {
4402     ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
4403     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
4404     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4405     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
4406     &custom_element.move_enter_element, 1, 1,
4407     "can dig:", " ", NULL, NULL,        "element that can be digged/collected"
4408   },
4409   {
4410     ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
4411     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
4412     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4413     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
4414     &custom_element.move_leave_element, 1, 1,
4415     NULL, NULL, NULL, NULL,             "element that will be left behind"
4416   },
4417
4418   // ---------- element settings: advanced (custom elements) ------------------
4419
4420   // ---------- custom change target ------------------------------------------
4421
4422   {
4423     ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
4424     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
4425     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4426     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
4427     &custom_element_change.target_element, 1, 1,
4428     NULL, "after/when:", NULL, NULL,    "new target element after change"
4429   },
4430
4431   // ---------- custom change content (extended change target) ----------------
4432
4433   {
4434     ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
4435     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
4436     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
4437     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
4438     &custom_element_change.target_content.e[0][0], 3, 3,
4439     NULL, NULL, NULL, NULL,             "new extended elements after change"
4440   },
4441
4442   // ---------- custom change trigger (element causing change) ----------------
4443
4444   {
4445     ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
4446     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
4447     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4448     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
4449     &custom_element_change.initial_trigger_element, 1, 1,
4450     NULL, NULL, NULL, NULL,             "other element triggering change"
4451   },
4452
4453   // ---------- custom change action (element used for action) ----------------
4454
4455   {
4456     ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
4457     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
4458     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
4459     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
4460     &custom_element_change.action_element, 1, 1,
4461     NULL, NULL, NULL, NULL,             "element used as action parameter"
4462   },
4463
4464   // ---------- group element content -----------------------------------------
4465
4466   {
4467     ED_DRAWING_ID_GROUP_CONTENT,
4468     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
4469     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
4470     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
4471     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
4472     "content:", NULL, NULL, NULL,       NULL
4473   },
4474
4475   // ---------- random background (for random painting) -----------------------
4476
4477   {
4478     ED_DRAWING_ID_RANDOM_BACKGROUND,
4479     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
4480     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
4481     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
4482     &random_placement_background_element, 1, 1,
4483     NULL, NULL, NULL, NULL,             "random placement background"
4484   },
4485 };
4486
4487
4488 // ----------------------------------------------------------------------------
4489 // some internally used variables
4490 // ----------------------------------------------------------------------------
4491
4492 // maximal size of level editor drawing area
4493 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
4494
4495 // actual size of level editor drawing area
4496 static int ed_fieldx, ed_fieldy;
4497
4498 // actual position of level editor drawing area in level playfield
4499 static int level_xpos = -1, level_ypos = -1;
4500
4501 // actual tile size used to display playfield drawing area
4502 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
4503 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
4504
4505 #define IN_ED_FIELD(x, y)       IN_FIELD(x, y, ed_fieldx, ed_fieldy)
4506
4507 // drawing elements on the three mouse buttons
4508 static int new_element1 = EL_WALL;
4509 static int new_element2 = EL_EMPTY;
4510 static int new_element3 = EL_SAND;
4511
4512 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
4513 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
4514                                 (button) == 2 ? new_element2 : \
4515                                 (button) == 3 ? new_element3 : EL_EMPTY)
4516
4517 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
4518
4519 static int use_permanent_palette = TRUE;
4520
4521 #define PX              (use_permanent_palette ? DX : SX)
4522 #define PY              (use_permanent_palette ? DY : SY)
4523 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
4524 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
4525
4526 // forward declaration for internal use
4527 static void CopyBrushToCursor(int, int);
4528 static void DeleteBrushFromCursor(void);
4529 static void ModifyEditorCounterValue(int, int);
4530 static void ModifyEditorCounterLimits(int, int, int);
4531 static void ModifyEditorSelectboxValue(int, int);
4532 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
4533 static void ModifyEditorDrawingArea(int, int, int);
4534 static void ModifyEditorElementList(void);
4535 static void AdjustElementListScrollbar(void);
4536 static void RedrawDrawingElements(void);
4537 static void DrawDrawingWindowExt(boolean);
4538 static void DrawDrawingWindow(void);
4539 static void DrawLevelConfigWindow(void);
4540 static void DrawPropertiesWindow(void);
4541 static void DrawPaletteWindow(void);
4542 static void UpdateCustomElementGraphicGadgets(void);
4543 static boolean checkPropertiesConfig(int);
4544 static void SetAutomaticNumberOfGemsNeeded(void);
4545 static void ClearEditorGadgetInfoText(void);
4546 static void CopyLevelToUndoBuffer(int);
4547 static void HandleDrawingAreas(struct GadgetInfo *);
4548 static void HandleCounterButtons(struct GadgetInfo *);
4549 static void HandleTextInputGadgets(struct GadgetInfo *);
4550 static void HandleTextAreaGadgets(struct GadgetInfo *);
4551 static void HandleSelectboxGadgets(struct GadgetInfo *);
4552 static void HandleTextbuttonGadgets(struct GadgetInfo *);
4553 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
4554 static void HandleRadiobuttons(struct GadgetInfo *);
4555 static void HandleCheckbuttons(struct GadgetInfo *);
4556 static void HandleControlButtons(struct GadgetInfo *);
4557 static void HandleDrawingAreaInfo(struct GadgetInfo *);
4558 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
4559 static boolean AskToCopyAndModifyLevelTemplate(void);
4560 static boolean getDrawModeHiRes(void);
4561 static int getTabulatorBarWidth(void);
4562 static int getTabulatorBarHeight(void);
4563 static Pixel getTabulatorBarColor(void);
4564 static int numHiresTiles(int);
4565
4566 static int num_editor_gadgets = 0;      // dynamically determined
4567
4568 static struct GadgetInfo **level_editor_gadget = NULL;
4569 static int *right_gadget_border = NULL;
4570
4571 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
4572 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
4573 static boolean draw_with_brush = FALSE;
4574 static int properties_element = 0;
4575
4576 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4577 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4578 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4579 static int undo_buffer_position = 0;
4580 static int undo_buffer_steps = 0;
4581 static int redo_buffer_steps = 0;
4582
4583 static int edit_mode;
4584 static int edit_mode_levelconfig;
4585 static int edit_mode_properties;
4586
4587 static int element_shift = 0;
4588
4589 static int editor_el_players[] =
4590 {
4591   EL_PLAYER_1,
4592   EL_PLAYER_2,
4593   EL_PLAYER_3,
4594   EL_PLAYER_4
4595 };
4596 static int *editor_el_players_ptr = editor_el_players;
4597 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
4598
4599 static int editor_hl_boulderdash[] =
4600 {
4601   EL_INTERNAL_CASCADE_BD_ACTIVE,
4602   EL_CHAR('B'),
4603   EL_CHAR('D'),
4604   EL_EMPTY,
4605 };
4606
4607 static int editor_el_boulderdash[] =
4608 {
4609   EL_EMPTY,
4610   EL_SAND,
4611   EL_BD_ROCK,
4612   EL_BD_DIAMOND,
4613
4614   EL_STEELWALL,
4615   EL_BD_WALL,
4616   EL_BD_EXPANDABLE_WALL,
4617   EL_BD_MAGIC_WALL,
4618
4619   EL_BD_AMOEBA,
4620   EL_BD_BUTTERFLY_UP,
4621   EL_BD_FIREFLY_UP,
4622   EL_EXIT_CLOSED,
4623
4624   EL_BD_BUTTERFLY_LEFT,
4625   EL_BD_FIREFLY_LEFT,
4626   EL_BD_BUTTERFLY_RIGHT,
4627   EL_BD_FIREFLY_RIGHT,
4628
4629   EL_EMPTY,
4630   EL_BD_BUTTERFLY_DOWN,
4631   EL_BD_FIREFLY_DOWN,
4632   EL_EXIT_OPEN,
4633 };
4634 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4635 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4636 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4637 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4638
4639 static int editor_hl_boulderdash_native[] =
4640 {
4641   EL_INTERNAL_CASCADE_BD_NATIVE_ACTIVE,
4642   EL_CHAR('B'),
4643   EL_CHAR('D'),
4644   EL_EMPTY,
4645 };
4646
4647 static int editor_el_boulderdash_native[] =
4648 {
4649   EL_EMPTY,
4650   EL_BD_SAND,
4651   EL_BD_ROCK,
4652   EL_BD_DIAMOND,
4653
4654   EL_BD_STEELWALL,
4655   EL_BD_WALL,
4656   EL_BD_SAND_2,
4657   EL_BD_MAGIC_WALL,
4658
4659   EL_BD_AMOEBA,
4660   EL_BD_BUTTERFLY_UP,
4661   EL_BD_FIREFLY_UP,
4662   EL_BD_EXIT_CLOSED,
4663
4664   EL_BD_BUTTERFLY_LEFT,
4665   EL_BD_FIREFLY_LEFT,
4666   EL_BD_BUTTERFLY_RIGHT,
4667   EL_BD_FIREFLY_RIGHT,
4668
4669   EL_BD_INBOX,
4670   EL_BD_BUTTERFLY_DOWN,
4671   EL_BD_FIREFLY_DOWN,
4672   EL_BD_EXIT_OPEN,
4673
4674   EL_BD_AMOEBA_2,
4675   EL_BD_BUTTERFLY_2_UP,
4676   EL_BD_FIREFLY_2_UP,
4677   EL_BD_SLIME,
4678
4679   EL_BD_BUTTERFLY_2_LEFT,
4680   EL_BD_FIREFLY_2_LEFT,
4681   EL_BD_BUTTERFLY_2_RIGHT,
4682   EL_BD_FIREFLY_2_RIGHT,
4683
4684   EL_BD_BOMB,
4685   EL_BD_BUTTERFLY_2_DOWN,
4686   EL_BD_FIREFLY_2_DOWN,
4687   EL_BD_FLYING_DIAMOND,
4688
4689   EL_BD_NITRO_PACK,
4690   EL_BD_DRAGONFLY_UP,
4691   EL_BD_STONEFLY_UP,
4692   EL_BD_DIAMOND_GLUED,
4693
4694   EL_BD_DRAGONFLY_LEFT,
4695   EL_BD_STONEFLY_LEFT,
4696   EL_BD_DRAGONFLY_RIGHT,
4697   EL_BD_STONEFLY_RIGHT,
4698
4699   EL_BD_NUT,
4700   EL_BD_DRAGONFLY_DOWN,
4701   EL_BD_STONEFLY_DOWN,
4702   EL_EMPTY,
4703
4704   EL_BD_BITER_SWITCH_1,
4705   EL_BD_BITER_UP,
4706   EL_BD_COW_UP,
4707   EL_EMPTY,
4708
4709   EL_BD_BITER_LEFT,
4710   EL_BD_COW_LEFT,
4711   EL_BD_BITER_RIGHT,
4712   EL_BD_COW_RIGHT,
4713
4714   EL_BD_VOODOO_DOLL,
4715   EL_BD_BITER_DOWN,
4716   EL_BD_COW_DOWN,
4717   EL_BD_GHOST,
4718
4719   EL_BD_SAND_GLUED,
4720   EL_BD_SAND_BALL,
4721   EL_BD_SAND_LOOSE,
4722   EL_BD_WALL_NON_SLOPED,
4723
4724   EL_BD_SAND_SLOPED_UP_LEFT,
4725   EL_BD_SAND_SLOPED_UP_RIGHT,
4726   EL_BD_WALL_SLOPED_UP_LEFT,
4727   EL_BD_WALL_SLOPED_UP_RIGHT,
4728
4729   EL_BD_SAND_SLOPED_DOWN_LEFT,
4730   EL_BD_SAND_SLOPED_DOWN_RIGHT,
4731   EL_BD_WALL_SLOPED_DOWN_LEFT,
4732   EL_BD_WALL_SLOPED_DOWN_RIGHT,
4733
4734   EL_BD_FLYING_ROCK,
4735   EL_BD_ROCK_GLUED,
4736   EL_BD_STEELWALL_SLOPED_UP_LEFT,
4737   EL_BD_STEELWALL_SLOPED_UP_RIGHT,
4738
4739   EL_BD_WAITING_ROCK,
4740   EL_BD_CHASING_ROCK,
4741   EL_BD_STEELWALL_SLOPED_DOWN_LEFT,
4742   EL_BD_STEELWALL_SLOPED_DOWN_RIGHT,
4743
4744   EL_BD_MEGA_ROCK,
4745   EL_BD_SWEET,
4746   EL_BD_INVISIBLE_EXIT_CLOSED,
4747   EL_BD_INVISIBLE_EXIT_OPEN,
4748
4749   EL_BD_STEELWALL_EXPLODABLE,
4750   EL_BD_STEELWALL_DIGGABLE,
4751   EL_BD_WALL_DIGGABLE,
4752   EL_BD_FALLING_WALL,
4753
4754   EL_BD_EXPANDABLE_WALL_HORIZONTAL,
4755   EL_BD_EXPANDABLE_WALL_VERTICAL,
4756   EL_BD_EXPANDABLE_WALL_ANY,
4757   EL_BD_EXPANDABLE_WALL_SWITCH_HORIZONTAL,
4758
4759   EL_BD_EXPANDABLE_STEELWALL_HORIZONTAL,
4760   EL_BD_EXPANDABLE_STEELWALL_VERTICAL,
4761   EL_BD_EXPANDABLE_STEELWALL_ANY,
4762   EL_BD_CREATURE_SWITCH,
4763
4764   EL_BD_BLADDER,
4765   EL_BD_BLADDER_SPENDER,
4766   EL_BD_REPLICATOR,
4767   EL_BD_REPLICATOR_SWITCH,
4768
4769   EL_BD_CONVEYOR_LEFT,
4770   EL_BD_CONVEYOR_RIGHT,
4771   EL_BD_CONVEYOR_SWITCH,
4772   EL_BD_CONVEYOR_DIR_SWITCH_RIGHT,
4773
4774   EL_BD_CLOCK,
4775   EL_BD_TIME_PENALTY,
4776   EL_BD_GRAVESTONE,
4777   EL_BD_SKELETON,
4778
4779   EL_BD_WATER,
4780   EL_BD_ACID,
4781   EL_BD_LAVA,
4782   EL_BD_BOX,
4783
4784   EL_BD_GATE_1,
4785   EL_BD_GATE_2,
4786   EL_BD_GATE_3,
4787   EL_BD_TRAPPED_DIAMOND,
4788
4789   EL_BD_KEY_1,
4790   EL_BD_KEY_2,
4791   EL_BD_KEY_3,
4792   EL_BD_DIAMOND_KEY,
4793
4794   EL_BD_WALL_KEY_1,
4795   EL_BD_WALL_KEY_2,
4796   EL_BD_WALL_KEY_3,
4797   EL_BD_WALL_DIAMOND,
4798
4799   EL_BD_GRAVITY_SWITCH,
4800   EL_BD_PNEUMATIC_HAMMER,
4801   EL_BD_TELEPORTER,
4802   EL_BD_POT,
4803
4804   EL_BD_PLAYER,
4805   EL_BD_PLAYER_WITH_BOMB,
4806   EL_BD_PLAYER_GLUED,
4807   EL_BD_PLAYER_STIRRING,
4808 };
4809 static int *editor_hl_boulderdash_native_ptr = editor_hl_boulderdash_native;
4810 static int *editor_el_boulderdash_native_ptr = editor_el_boulderdash_native;
4811 static int num_editor_hl_boulderdash_native = ARRAY_SIZE(editor_hl_boulderdash_native);
4812 static int num_editor_el_boulderdash_native = ARRAY_SIZE(editor_el_boulderdash_native);
4813
4814 static int editor_hl_emerald_mine[] =
4815 {
4816   EL_INTERNAL_CASCADE_EM_ACTIVE,
4817   EL_CHAR('E'),
4818   EL_CHAR('M'),
4819   EL_EMPTY,
4820 };
4821
4822 static int editor_el_emerald_mine[] =
4823 {
4824   EL_SAND,
4825   EL_ROCK,
4826   EL_QUICKSAND_EMPTY,
4827   EL_QUICKSAND_FULL,
4828
4829   EL_STEELWALL,
4830   EL_WALL,
4831   EL_WALL_SLIPPERY,
4832   EL_MAGIC_WALL,
4833
4834   EL_EMERALD,
4835   EL_DIAMOND,
4836   EL_NUT,
4837   EL_BOMB,
4838
4839   EL_EM_DYNAMITE,
4840   EL_EM_DYNAMITE_ACTIVE,
4841   EL_EM_EXIT_CLOSED,
4842   EL_EM_EXIT_OPEN,
4843
4844   EL_YAMYAM_UP,
4845   EL_BUG_UP,
4846   EL_SPACESHIP_UP,
4847   EL_ROBOT,
4848
4849   EL_BUG_LEFT,
4850   EL_SPACESHIP_LEFT,
4851   EL_BUG_RIGHT,
4852   EL_SPACESHIP_RIGHT,
4853
4854   EL_ROBOT_WHEEL,
4855   EL_BUG_DOWN,
4856   EL_SPACESHIP_DOWN,
4857   EL_INVISIBLE_WALL,
4858
4859   EL_ACID_POOL_TOPLEFT,
4860   EL_ACID,
4861   EL_ACID_POOL_TOPRIGHT,
4862   EL_AMOEBA_DROP,
4863
4864   EL_ACID_POOL_BOTTOMLEFT,
4865   EL_ACID_POOL_BOTTOM,
4866   EL_ACID_POOL_BOTTOMRIGHT,
4867   EL_AMOEBA_WET,
4868
4869   EL_EM_KEY_1,
4870   EL_EM_KEY_2,
4871   EL_EM_KEY_3,
4872   EL_EM_KEY_4,
4873
4874   EL_EM_GATE_1,
4875   EL_EM_GATE_2,
4876   EL_EM_GATE_3,
4877   EL_EM_GATE_4,
4878
4879   EL_EM_GATE_1_GRAY,
4880   EL_EM_GATE_2_GRAY,
4881   EL_EM_GATE_3_GRAY,
4882   EL_EM_GATE_4_GRAY,
4883 };
4884 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
4885 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
4886 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
4887 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
4888
4889 static int editor_hl_emerald_mine_club[] =
4890 {
4891   EL_INTERNAL_CASCADE_EMC_ACTIVE,
4892   EL_CHAR('E'),
4893   EL_CHAR('M'),
4894   EL_CHAR('C'),
4895 };
4896
4897 static int editor_el_emerald_mine_club[] =
4898 {
4899   EL_EMC_KEY_5,
4900   EL_EMC_KEY_6,
4901   EL_EMC_KEY_7,
4902   EL_EMC_KEY_8,
4903
4904   EL_EMC_GATE_5,
4905   EL_EMC_GATE_6,
4906   EL_EMC_GATE_7,
4907   EL_EMC_GATE_8,
4908
4909   EL_EMC_GATE_5_GRAY,
4910   EL_EMC_GATE_6_GRAY,
4911   EL_EMC_GATE_7_GRAY,
4912   EL_EMC_GATE_8_GRAY,
4913
4914   EL_EMC_STEELWALL_1,
4915   EL_EMC_STEELWALL_2,
4916   EL_EMC_STEELWALL_3,
4917   EL_EMC_STEELWALL_4,
4918
4919   EL_EMC_WALL_13,
4920   EL_EMC_WALL_14,
4921   EL_EMC_WALL_15,
4922   EL_EMC_WALL_16,
4923
4924   EL_EMC_WALL_SLIPPERY_1,
4925   EL_EMC_WALL_SLIPPERY_2,
4926   EL_EMC_WALL_SLIPPERY_3,
4927   EL_EMC_WALL_SLIPPERY_4,
4928
4929   EL_EMC_WALL_1,
4930   EL_EMC_WALL_2,
4931   EL_EMC_WALL_3,
4932   EL_EMC_WALL_4,
4933
4934   EL_EMC_WALL_5,
4935   EL_EMC_WALL_6,
4936   EL_EMC_WALL_7,
4937   EL_EMC_WALL_8,
4938
4939   EL_EMC_WALL_9,
4940   EL_EMC_WALL_10,
4941   EL_EMC_WALL_11,
4942   EL_EMC_WALL_12,
4943
4944   EL_EMC_GRASS,
4945   EL_EMC_FAKE_GRASS,
4946   EL_EMC_PLANT,
4947   EL_EMC_DRIPPER,
4948
4949   EL_EMC_MAGIC_BALL,
4950   EL_EMC_MAGIC_BALL_SWITCH,
4951   EL_EMC_LENSES,
4952   EL_EMC_MAGNIFIER,
4953
4954   EL_SPRING_LEFT,
4955   EL_SPRING,
4956   EL_SPRING_RIGHT,
4957   EL_EMC_SPRING_BUMPER,
4958
4959   EL_BALLOON,
4960   EL_YAMYAM_UP,
4961   EL_BALLOON_SWITCH_UP,
4962   EL_BALLOON_SWITCH_ANY,
4963
4964   EL_YAMYAM_LEFT,
4965   EL_BALLOON_SWITCH_LEFT,
4966   EL_YAMYAM_RIGHT,
4967   EL_BALLOON_SWITCH_RIGHT,
4968
4969   EL_EMC_ANDROID,
4970   EL_YAMYAM_DOWN,
4971   EL_BALLOON_SWITCH_DOWN,
4972   EL_BALLOON_SWITCH_NONE,
4973 };
4974 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
4975 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
4976 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
4977 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
4978
4979 static int editor_hl_rnd[] =
4980 {
4981   EL_INTERNAL_CASCADE_RND_ACTIVE,
4982   EL_CHAR('R'),
4983   EL_CHAR('N'),
4984   EL_CHAR('D'),
4985 };
4986
4987 static int editor_el_rnd[] =
4988 {
4989   EL_DYNAMITE,                  // RND
4990   EL_DYNAMITE_ACTIVE,           // RND
4991   EL_EMPTY,
4992   EL_EMPTY,
4993
4994   EL_KEY_1,
4995   EL_KEY_2,
4996   EL_KEY_3,
4997   EL_KEY_4,
4998
4999   EL_GATE_1,
5000   EL_GATE_2,
5001   EL_GATE_3,
5002   EL_GATE_4,
5003
5004   EL_GATE_1_GRAY,
5005   EL_GATE_2_GRAY,
5006   EL_GATE_3_GRAY,
5007   EL_GATE_4_GRAY,
5008
5009   EL_ARROW_LEFT,
5010   EL_ARROW_RIGHT,
5011   EL_ARROW_UP,
5012   EL_ARROW_DOWN,
5013
5014   EL_AMOEBA_DEAD,
5015   EL_AMOEBA_DRY,
5016   EL_AMOEBA_FULL,
5017   EL_GAME_OF_LIFE,
5018
5019   EL_EMERALD_YELLOW,
5020   EL_EMERALD_RED,
5021   EL_EMERALD_PURPLE,
5022   EL_BIOMAZE,
5023
5024   EL_WALL_EMERALD_YELLOW,
5025   EL_WALL_EMERALD_RED,
5026   EL_WALL_EMERALD_PURPLE,
5027   EL_WALL_BD_DIAMOND,
5028
5029   EL_SPEED_PILL,
5030   EL_PACMAN_UP,
5031   EL_TIME_ORB_FULL,
5032   EL_TIME_ORB_EMPTY,
5033
5034   EL_PACMAN_LEFT,
5035   EL_DARK_YAMYAM,
5036   EL_PACMAN_RIGHT,
5037   EL_YAMYAM,                    // RND
5038
5039   EL_BLACK_ORB,
5040   EL_PACMAN_DOWN,
5041   EL_LAMP,
5042   EL_LAMP_ACTIVE,
5043
5044   EL_DYNABOMB_INCREASE_NUMBER,
5045   EL_DYNABOMB_INCREASE_SIZE,
5046   EL_DYNABOMB_INCREASE_POWER,
5047   EL_STONEBLOCK,
5048
5049   EL_MOLE,
5050   EL_PENGUIN,
5051   EL_PIG,
5052   EL_DRAGON,
5053
5054   EL_BUG,
5055   EL_MOLE_UP,
5056   EL_BD_BUTTERFLY,
5057   EL_BD_FIREFLY,
5058
5059   EL_MOLE_LEFT,
5060   EL_SATELLITE,
5061   EL_MOLE_RIGHT,
5062   EL_PACMAN,
5063
5064   EL_SPACESHIP,
5065   EL_MOLE_DOWN,
5066   EL_INVISIBLE_STEELWALL,
5067   EL_INVISIBLE_WALL,
5068
5069   EL_EXPANDABLE_WALL,
5070   EL_EXPANDABLE_WALL_HORIZONTAL,
5071   EL_EXPANDABLE_WALL_VERTICAL,
5072   EL_EXPANDABLE_WALL_ANY,
5073 };
5074 static int *editor_hl_rnd_ptr = editor_hl_rnd;
5075 static int *editor_el_rnd_ptr = editor_el_rnd;
5076 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
5077 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
5078
5079 static int editor_hl_sokoban[] =
5080 {
5081   EL_INTERNAL_CASCADE_SB_ACTIVE,
5082   EL_CHAR('S'),
5083   EL_CHAR('B'),
5084   EL_EMPTY,
5085 };
5086
5087 static int editor_el_sokoban[] =
5088 {
5089   EL_SOKOBAN_OBJECT,
5090   EL_SOKOBAN_FIELD_EMPTY,
5091   EL_SOKOBAN_FIELD_FULL,
5092   EL_SOKOBAN_FIELD_PLAYER,
5093 };
5094 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
5095 static int *editor_el_sokoban_ptr = editor_el_sokoban;
5096 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
5097 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
5098
5099 static int editor_hl_supaplex[] =
5100 {
5101   EL_INTERNAL_CASCADE_SP_ACTIVE,
5102   EL_CHAR('S'),
5103   EL_CHAR('P'),
5104   EL_EMPTY,
5105 };
5106
5107 static int editor_el_supaplex[] =
5108 {
5109   EL_SP_MURPHY,
5110   EL_EMPTY,
5111   EL_SP_BASE,
5112   EL_SP_BUGGY_BASE,
5113
5114   EL_SP_INFOTRON,
5115   EL_SP_ZONK,
5116   EL_SP_SNIKSNAK,
5117   EL_SP_ELECTRON,
5118
5119   EL_SP_DISK_RED,
5120   EL_SP_DISK_ORANGE,
5121   EL_SP_DISK_YELLOW,
5122   EL_SP_TERMINAL,
5123
5124   EL_SP_EXIT_CLOSED,
5125   EL_SP_PORT_HORIZONTAL,
5126   EL_SP_PORT_VERTICAL,
5127   EL_SP_PORT_ANY,
5128
5129   EL_SP_PORT_LEFT,
5130   EL_SP_PORT_RIGHT,
5131   EL_SP_PORT_UP,
5132   EL_SP_PORT_DOWN,
5133
5134   EL_SP_GRAVITY_PORT_LEFT,
5135   EL_SP_GRAVITY_PORT_RIGHT,
5136   EL_SP_GRAVITY_PORT_UP,
5137   EL_SP_GRAVITY_PORT_DOWN,
5138
5139   EL_SP_GRAVITY_ON_PORT_LEFT,
5140   EL_SP_GRAVITY_ON_PORT_RIGHT,
5141   EL_SP_GRAVITY_ON_PORT_UP,
5142   EL_SP_GRAVITY_ON_PORT_DOWN,
5143
5144   EL_SP_GRAVITY_OFF_PORT_LEFT,
5145   EL_SP_GRAVITY_OFF_PORT_RIGHT,
5146   EL_SP_GRAVITY_OFF_PORT_UP,
5147   EL_SP_GRAVITY_OFF_PORT_DOWN,
5148
5149   EL_SP_HARDWARE_GRAY,
5150   EL_SP_HARDWARE_GREEN,
5151   EL_SP_HARDWARE_BLUE,
5152   EL_SP_HARDWARE_RED,
5153
5154   EL_SP_HARDWARE_BASE_1,
5155   EL_SP_HARDWARE_BASE_2,
5156   EL_SP_HARDWARE_BASE_3,
5157   EL_SP_HARDWARE_BASE_4,
5158
5159   EL_SP_HARDWARE_BASE_5,
5160   EL_SP_HARDWARE_BASE_6,
5161   EL_SP_HARDWARE_YELLOW,
5162   EL_SP_CHIP_TOP,
5163
5164   EL_SP_CHIP_SINGLE,
5165   EL_SP_CHIP_LEFT,
5166   EL_SP_CHIP_RIGHT,
5167   EL_SP_CHIP_BOTTOM,
5168 };
5169 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
5170 static int *editor_el_supaplex_ptr = editor_el_supaplex;
5171 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
5172 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
5173
5174 static int editor_hl_diamond_caves[] =
5175 {
5176   EL_INTERNAL_CASCADE_DC_ACTIVE,
5177   EL_CHAR('D'),
5178   EL_CHAR('C'),
5179   EL_CHAR('2'),
5180 };
5181
5182 static int editor_el_diamond_caves[] =
5183 {
5184   EL_EM_STEEL_EXIT_CLOSED,      // DC2
5185   EL_EM_STEEL_EXIT_OPEN,        // DC2
5186   EL_WALL_EMERALD,              // DC2
5187   EL_WALL_DIAMOND,              // DC2
5188
5189   EL_PEARL,
5190   EL_CRYSTAL,
5191   EL_WALL_PEARL,
5192   EL_WALL_CRYSTAL,
5193
5194   EL_CONVEYOR_BELT_1_LEFT,
5195   EL_CONVEYOR_BELT_1_MIDDLE,
5196   EL_CONVEYOR_BELT_1_RIGHT,
5197   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
5198
5199   EL_CONVEYOR_BELT_2_LEFT,
5200   EL_CONVEYOR_BELT_2_MIDDLE,
5201   EL_CONVEYOR_BELT_2_RIGHT,
5202   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
5203
5204   EL_CONVEYOR_BELT_3_LEFT,
5205   EL_CONVEYOR_BELT_3_MIDDLE,
5206   EL_CONVEYOR_BELT_3_RIGHT,
5207   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
5208
5209   EL_CONVEYOR_BELT_4_LEFT,
5210   EL_CONVEYOR_BELT_4_MIDDLE,
5211   EL_CONVEYOR_BELT_4_RIGHT,
5212   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
5213
5214   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
5215   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
5216   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
5217   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
5218
5219   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
5220   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
5221   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
5222   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
5223
5224   EL_TIMEGATE_CLOSED,
5225   EL_TIMEGATE_OPEN,
5226   EL_TIMEGATE_SWITCH,
5227   EL_DC_TIMEGATE_SWITCH,
5228
5229   EL_SWITCHGATE_CLOSED,
5230   EL_SWITCHGATE_OPEN,
5231   EL_SWITCHGATE_SWITCH_UP,
5232   EL_SWITCHGATE_SWITCH_DOWN,
5233
5234   EL_LIGHT_SWITCH,
5235   EL_LIGHT_SWITCH_ACTIVE,
5236   EL_DC_SWITCHGATE_SWITCH_UP,
5237   EL_DC_SWITCHGATE_SWITCH_DOWN,
5238
5239   EL_STEEL_EXIT_CLOSED,
5240   EL_STEEL_EXIT_OPEN,
5241   EL_STEELWALL_SLIPPERY,
5242   EL_INVISIBLE_SAND,
5243
5244   EL_QUICKSAND_FAST_EMPTY,
5245   EL_QUICKSAND_FAST_FULL,
5246   EL_LANDMINE,
5247   EL_DC_LANDMINE,
5248
5249   EL_SHIELD_NORMAL,
5250   EL_SHIELD_DEADLY,
5251   EL_EXTRA_TIME,
5252   EL_DC_MAGIC_WALL,
5253
5254   EL_ENVELOPE_1,
5255   EL_ENVELOPE_2,
5256   EL_ENVELOPE_3,
5257   EL_ENVELOPE_4,
5258
5259   EL_SIGN_RADIOACTIVITY,
5260   EL_SIGN_WHEELCHAIR,
5261   EL_SIGN_PARKING,
5262   EL_SIGN_NO_ENTRY,
5263
5264   EL_SIGN_GIVE_WAY,
5265   EL_SIGN_ENTRY_FORBIDDEN,
5266   EL_SIGN_EMERGENCY_EXIT,
5267   EL_SIGN_YIN_YANG,
5268
5269 #if 0
5270   EL_SIGN_SPERMS,
5271   EL_SIGN_BULLET,
5272   EL_SIGN_HEART,
5273   EL_SIGN_CROSS,
5274
5275   EL_SIGN_FRANKIE,
5276   EL_EMPTY,
5277   EL_EMPTY,
5278   EL_EMPTY,
5279
5280   EL_SPERMS,
5281   EL_BULLET,
5282   EL_HEART,
5283   EL_CROSS,
5284
5285   EL_FRANKIE,
5286   EL_EMPTY,
5287   EL_EMPTY,
5288   EL_EMPTY,
5289 #endif
5290
5291   EL_DC_STEELWALL_2_SINGLE,
5292   EL_DC_STEELWALL_2_TOP,
5293   EL_SIGN_EXCLAMATION,
5294   EL_SIGN_STOP,
5295
5296   EL_DC_STEELWALL_2_LEFT,
5297   EL_DC_STEELWALL_2_MIDDLE,
5298   EL_DC_STEELWALL_2_HORIZONTAL,
5299   EL_DC_STEELWALL_2_RIGHT,
5300
5301   EL_DC_STEELWALL_1_TOPLEFT,
5302   EL_DC_STEELWALL_2_VERTICAL,
5303   EL_DC_STEELWALL_1_TOPRIGHT,
5304   EL_DC_GATE_WHITE,
5305
5306   EL_DC_STEELWALL_1_VERTICAL,
5307   EL_DC_STEELWALL_2_BOTTOM,
5308   EL_DC_KEY_WHITE,
5309   EL_DC_GATE_WHITE_GRAY,
5310
5311   EL_DC_STEELWALL_1_BOTTOMLEFT,
5312   EL_DC_STEELWALL_1_HORIZONTAL,
5313   EL_DC_STEELWALL_1_BOTTOMRIGHT,
5314   EL_DC_GATE_FAKE_GRAY,
5315
5316   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
5317   EL_DC_STEELWALL_1_BOTTOM,
5318   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
5319   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
5320
5321   EL_DC_STEELWALL_1_RIGHT,
5322   EL_EMPTY,
5323   EL_DC_STEELWALL_1_LEFT,
5324   EL_EXPANDABLE_STEELWALL_VERTICAL,
5325
5326   EL_DC_STEELWALL_1_TOPRIGHT_2,
5327   EL_DC_STEELWALL_1_TOP,
5328   EL_DC_STEELWALL_1_TOPLEFT_2,
5329   EL_EXPANDABLE_STEELWALL_ANY,
5330 };
5331 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
5332 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
5333 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
5334 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
5335
5336 static int editor_hl_dx_boulderdash[] =
5337 {
5338   EL_INTERNAL_CASCADE_DX_ACTIVE,
5339   EL_CHAR('D'),
5340   EL_CHAR('X'),
5341   EL_EMPTY,
5342 };
5343
5344 static int editor_el_dx_boulderdash[] =
5345 {
5346   EL_EMPTY,
5347   EL_TUBE_RIGHT_DOWN,
5348   EL_TUBE_HORIZONTAL_DOWN,
5349   EL_TUBE_LEFT_DOWN,
5350
5351   EL_TUBE_HORIZONTAL,
5352   EL_TUBE_VERTICAL_RIGHT,
5353   EL_TUBE_ANY,
5354   EL_TUBE_VERTICAL_LEFT,
5355
5356   EL_TUBE_VERTICAL,
5357   EL_TUBE_RIGHT_UP,
5358   EL_TUBE_HORIZONTAL_UP,
5359   EL_TUBE_LEFT_UP,
5360
5361   EL_TRAP,
5362   EL_DX_SUPABOMB,
5363   EL_EMPTY,
5364   EL_EMPTY
5365 };
5366 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
5367 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
5368 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
5369 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
5370
5371 static int editor_hl_mirror_magic[] =
5372 {
5373   EL_INTERNAL_CASCADE_MM_ACTIVE,
5374   EL_CHAR('M'),
5375   EL_CHAR('M'),
5376   EL_EMPTY,
5377 };
5378
5379 static int editor_el_mirror_magic[] =
5380 {
5381   EL_MM_MCDUFFIN_RIGHT,
5382   EL_MM_MCDUFFIN_UP,
5383   EL_MM_MCDUFFIN_LEFT,
5384   EL_MM_MCDUFFIN_DOWN,
5385
5386   EL_MM_MIRROR_START,
5387   EL_MM_MIRROR_FIXED_START,
5388   EL_MM_POLARIZER_START,
5389   EL_MM_POLARIZER_CROSS_START,
5390
5391   EL_MM_TELEPORTER_RED_START,
5392   EL_MM_TELEPORTER_YELLOW_START,
5393   EL_MM_TELEPORTER_GREEN_START,
5394   EL_MM_TELEPORTER_BLUE_START,
5395
5396   EL_MM_PRISM,
5397   EL_MM_FUSE_ACTIVE,
5398   EL_MM_PACMAN_RIGHT,
5399   EL_MM_EXIT_CLOSED,
5400
5401   EL_MM_KETTLE,
5402   EL_MM_BOMB,
5403   EL_MM_KEY,
5404   EL_MM_FUEL_FULL,
5405
5406   EL_MM_LIGHTBULB,
5407   EL_MM_LIGHTBULB_ACTIVE,
5408   EL_MM_GRAY_BALL,
5409   EL_MM_LIGHTBALL,
5410
5411   EL_MM_STEEL_WALL,
5412   EL_MM_WOODEN_WALL,
5413   EL_MM_ICE_WALL,
5414   EL_MM_AMOEBA_WALL,
5415
5416   EL_MM_STEEL_LOCK,
5417   EL_MM_WOODEN_LOCK,
5418   EL_MM_STEEL_BLOCK,
5419   EL_MM_WOODEN_BLOCK,
5420
5421   EL_MM_STEEL_GRID_FIXED_1,
5422   EL_MM_STEEL_GRID_FIXED_2,
5423   EL_MM_STEEL_GRID_FIXED_3,
5424   EL_MM_STEEL_GRID_FIXED_4,
5425
5426   EL_MM_WOODEN_GRID_FIXED_1,
5427   EL_MM_WOODEN_GRID_FIXED_2,
5428   EL_MM_WOODEN_GRID_FIXED_3,
5429   EL_MM_WOODEN_GRID_FIXED_4,
5430
5431   EL_MM_ENVELOPE_1,
5432   EL_MM_ENVELOPE_2,
5433   EL_MM_ENVELOPE_3,
5434   EL_MM_ENVELOPE_4
5435 };
5436 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
5437 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
5438 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
5439 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
5440
5441 static int editor_hl_deflektor[] =
5442 {
5443   EL_INTERNAL_CASCADE_DF_ACTIVE,
5444   EL_CHAR('D'),
5445   EL_CHAR('F'),
5446   EL_EMPTY,
5447 };
5448
5449 static int editor_el_deflektor[] =
5450 {
5451   EL_DF_LASER_RIGHT,
5452   EL_DF_LASER_UP,
5453   EL_DF_LASER_LEFT,
5454   EL_DF_LASER_DOWN,
5455
5456   EL_DF_RECEIVER_RIGHT,
5457   EL_DF_RECEIVER_UP,
5458   EL_DF_RECEIVER_LEFT,
5459   EL_DF_RECEIVER_DOWN,
5460
5461   EL_DF_MIRROR_START,
5462   EL_DF_MIRROR_ROTATING_START,
5463   EL_DF_MIRROR_FIXED_START,
5464   EL_DF_CELL,
5465
5466   EL_DF_FIBRE_OPTIC_RED_1,
5467   EL_DF_FIBRE_OPTIC_YELLOW_1,
5468   EL_DF_FIBRE_OPTIC_GREEN_1,
5469   EL_DF_FIBRE_OPTIC_BLUE_1,
5470
5471   EL_DF_STEEL_GRID_FIXED_START,
5472   EL_DF_STEEL_GRID_ROTATING_START,
5473   EL_DF_WOODEN_GRID_FIXED_START,
5474   EL_DF_WOODEN_GRID_ROTATING_START,
5475
5476   EL_DF_STEEL_WALL,
5477   EL_DF_WOODEN_WALL,
5478   EL_DF_REFRACTOR,
5479   EL_DF_MINE,
5480
5481   EL_DF_SLOPE_1,
5482   EL_DF_SLOPE_2,
5483   EL_DF_SLOPE_3,
5484   EL_DF_SLOPE_4
5485 };
5486 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
5487 static int *editor_el_deflektor_ptr = editor_el_deflektor;
5488 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
5489 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
5490
5491 static int editor_hl_chars[] =
5492 {
5493   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
5494   EL_CHAR('T'),
5495   EL_CHAR('X'),
5496   EL_CHAR('T'),
5497 };
5498
5499 static int editor_el_chars[] =
5500 {
5501   EL_CHAR(' '),
5502   EL_CHAR('!'),
5503   EL_CHAR('"'),
5504   EL_CHAR('#'),
5505
5506   EL_CHAR('$'),
5507   EL_CHAR('%'),
5508   EL_CHAR('&'),
5509   EL_CHAR('\''),
5510
5511   EL_CHAR('('),
5512   EL_CHAR(')'),
5513   EL_CHAR('*'),
5514   EL_CHAR('+'),
5515
5516   EL_CHAR(','),
5517   EL_CHAR('-'),
5518   EL_CHAR('.'),
5519   EL_CHAR('/'),
5520
5521   EL_CHAR('0'),
5522   EL_CHAR('1'),
5523   EL_CHAR('2'),
5524   EL_CHAR('3'),
5525
5526   EL_CHAR('4'),
5527   EL_CHAR('5'),
5528   EL_CHAR('6'),
5529   EL_CHAR('7'),
5530
5531   EL_CHAR('8'),
5532   EL_CHAR('9'),
5533   EL_CHAR(':'),
5534   EL_CHAR(';'),
5535
5536   EL_CHAR('<'),
5537   EL_CHAR('='),
5538   EL_CHAR('>'),
5539   EL_CHAR('?'),
5540
5541   EL_CHAR('@'),
5542   EL_CHAR('A'),
5543   EL_CHAR('B'),
5544   EL_CHAR('C'),
5545
5546   EL_CHAR('D'),
5547   EL_CHAR('E'),
5548   EL_CHAR('F'),
5549   EL_CHAR('G'),
5550
5551   EL_CHAR('H'),
5552   EL_CHAR('I'),
5553   EL_CHAR('J'),
5554   EL_CHAR('K'),
5555
5556   EL_CHAR('L'),
5557   EL_CHAR('M'),
5558   EL_CHAR('N'),
5559   EL_CHAR('O'),
5560
5561   EL_CHAR('P'),
5562   EL_CHAR('Q'),
5563   EL_CHAR('R'),
5564   EL_CHAR('S'),
5565
5566   EL_CHAR('T'),
5567   EL_CHAR('U'),
5568   EL_CHAR('V'),
5569   EL_CHAR('W'),
5570
5571   EL_CHAR('X'),
5572   EL_CHAR('Y'),
5573   EL_CHAR('Z'),
5574   EL_CHAR('['),
5575
5576   EL_CHAR('\\'),
5577   EL_CHAR(']'),
5578   EL_CHAR('^'),
5579   EL_CHAR('_'),
5580
5581   EL_CHAR(CHAR_BYTE_COPYRIGHT),
5582   EL_CHAR(CHAR_BYTE_UMLAUT_A),
5583   EL_CHAR(CHAR_BYTE_UMLAUT_O),
5584   EL_CHAR(CHAR_BYTE_UMLAUT_U),
5585
5586   EL_CHAR(CHAR_BYTE_DEGREE),
5587   EL_CHAR(CHAR_BYTE_REGISTERED),
5588   EL_CHAR(FONT_ASCII_CURSOR),
5589   EL_CHAR(FONT_ASCII_BUTTON),
5590
5591   EL_CHAR(FONT_ASCII_UP),
5592   EL_CHAR(FONT_ASCII_DOWN),
5593   EL_CHAR(' '),
5594   EL_CHAR(' ')
5595 };
5596 static int *editor_hl_chars_ptr = editor_hl_chars;
5597 static int *editor_el_chars_ptr = editor_el_chars;
5598 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
5599 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
5600
5601 static int editor_hl_steel_chars[] =
5602 {
5603   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
5604   EL_STEEL_CHAR('T'),
5605   EL_STEEL_CHAR('X'),
5606   EL_STEEL_CHAR('T'),
5607 };
5608
5609 static int editor_el_steel_chars[] =
5610 {
5611   EL_STEEL_CHAR(' '),
5612   EL_STEEL_CHAR('!'),
5613   EL_STEEL_CHAR('"'),
5614   EL_STEEL_CHAR('#'),
5615
5616   EL_STEEL_CHAR('$'),
5617   EL_STEEL_CHAR('%'),
5618   EL_STEEL_CHAR('&'),
5619   EL_STEEL_CHAR('\''),
5620
5621   EL_STEEL_CHAR('('),
5622   EL_STEEL_CHAR(')'),
5623   EL_STEEL_CHAR('*'),
5624   EL_STEEL_CHAR('+'),
5625
5626   EL_STEEL_CHAR(','),
5627   EL_STEEL_CHAR('-'),
5628   EL_STEEL_CHAR('.'),
5629   EL_STEEL_CHAR('/'),
5630
5631   EL_STEEL_CHAR('0'),
5632   EL_STEEL_CHAR('1'),
5633   EL_STEEL_CHAR('2'),
5634   EL_STEEL_CHAR('3'),
5635
5636   EL_STEEL_CHAR('4'),
5637   EL_STEEL_CHAR('5'),
5638   EL_STEEL_CHAR('6'),
5639   EL_STEEL_CHAR('7'),
5640
5641   EL_STEEL_CHAR('8'),
5642   EL_STEEL_CHAR('9'),
5643   EL_STEEL_CHAR(':'),
5644   EL_STEEL_CHAR(';'),
5645
5646   EL_STEEL_CHAR('<'),
5647   EL_STEEL_CHAR('='),
5648   EL_STEEL_CHAR('>'),
5649   EL_STEEL_CHAR('?'),
5650
5651   EL_STEEL_CHAR('@'),
5652   EL_STEEL_CHAR('A'),
5653   EL_STEEL_CHAR('B'),
5654   EL_STEEL_CHAR('C'),
5655
5656   EL_STEEL_CHAR('D'),
5657   EL_STEEL_CHAR('E'),
5658   EL_STEEL_CHAR('F'),
5659   EL_STEEL_CHAR('G'),
5660
5661   EL_STEEL_CHAR('H'),
5662   EL_STEEL_CHAR('I'),
5663   EL_STEEL_CHAR('J'),
5664   EL_STEEL_CHAR('K'),
5665
5666   EL_STEEL_CHAR('L'),
5667   EL_STEEL_CHAR('M'),
5668   EL_STEEL_CHAR('N'),
5669   EL_STEEL_CHAR('O'),
5670
5671   EL_STEEL_CHAR('P'),
5672   EL_STEEL_CHAR('Q'),
5673   EL_STEEL_CHAR('R'),
5674   EL_STEEL_CHAR('S'),
5675
5676   EL_STEEL_CHAR('T'),
5677   EL_STEEL_CHAR('U'),
5678   EL_STEEL_CHAR('V'),
5679   EL_STEEL_CHAR('W'),
5680
5681   EL_STEEL_CHAR('X'),
5682   EL_STEEL_CHAR('Y'),
5683   EL_STEEL_CHAR('Z'),
5684   EL_STEEL_CHAR('['),
5685
5686   EL_STEEL_CHAR('\\'),
5687   EL_STEEL_CHAR(']'),
5688   EL_STEEL_CHAR('^'),
5689   EL_STEEL_CHAR('_'),
5690
5691   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
5692   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
5693   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
5694   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
5695
5696   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
5697   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
5698   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
5699   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
5700
5701   EL_STEEL_CHAR(FONT_ASCII_UP),
5702   EL_STEEL_CHAR(FONT_ASCII_DOWN),
5703   EL_STEEL_CHAR(' '),
5704   EL_STEEL_CHAR(' ')
5705 };
5706 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
5707 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
5708 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
5709 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
5710
5711 static int editor_hl_custom[] =
5712 {
5713   EL_INTERNAL_CASCADE_CE_ACTIVE,
5714   EL_CHAR('C'),
5715   EL_CHAR('E'),
5716   EL_EMPTY,
5717 };
5718
5719 static int editor_el_custom[] =
5720 {
5721   EL_CUSTOM_START + 0,
5722   EL_CUSTOM_START + 1,
5723   EL_CUSTOM_START + 2,
5724   EL_CUSTOM_START + 3,
5725
5726   EL_CUSTOM_START + 4,
5727   EL_CUSTOM_START + 5,
5728   EL_CUSTOM_START + 6,
5729   EL_CUSTOM_START + 7,
5730
5731   EL_CUSTOM_START + 8,
5732   EL_CUSTOM_START + 9,
5733   EL_CUSTOM_START + 10,
5734   EL_CUSTOM_START + 11,
5735
5736   EL_CUSTOM_START + 12,
5737   EL_CUSTOM_START + 13,
5738   EL_CUSTOM_START + 14,
5739   EL_CUSTOM_START + 15,
5740
5741   EL_CUSTOM_START + 16,
5742   EL_CUSTOM_START + 17,
5743   EL_CUSTOM_START + 18,
5744   EL_CUSTOM_START + 19,
5745
5746   EL_CUSTOM_START + 20,
5747   EL_CUSTOM_START + 21,
5748   EL_CUSTOM_START + 22,
5749   EL_CUSTOM_START + 23,
5750
5751   EL_CUSTOM_START + 24,
5752   EL_CUSTOM_START + 25,
5753   EL_CUSTOM_START + 26,
5754   EL_CUSTOM_START + 27,
5755
5756   EL_CUSTOM_START + 28,
5757   EL_CUSTOM_START + 29,
5758   EL_CUSTOM_START + 30,
5759   EL_CUSTOM_START + 31,
5760
5761   EL_CUSTOM_START + 32,
5762   EL_CUSTOM_START + 33,
5763   EL_CUSTOM_START + 34,
5764   EL_CUSTOM_START + 35,
5765
5766   EL_CUSTOM_START + 36,
5767   EL_CUSTOM_START + 37,
5768   EL_CUSTOM_START + 38,
5769   EL_CUSTOM_START + 39,
5770
5771   EL_CUSTOM_START + 40,
5772   EL_CUSTOM_START + 41,
5773   EL_CUSTOM_START + 42,
5774   EL_CUSTOM_START + 43,
5775
5776   EL_CUSTOM_START + 44,
5777   EL_CUSTOM_START + 45,
5778   EL_CUSTOM_START + 46,
5779   EL_CUSTOM_START + 47,
5780
5781   EL_CUSTOM_START + 48,
5782   EL_CUSTOM_START + 49,
5783   EL_CUSTOM_START + 50,
5784   EL_CUSTOM_START + 51,
5785
5786   EL_CUSTOM_START + 52,
5787   EL_CUSTOM_START + 53,
5788   EL_CUSTOM_START + 54,
5789   EL_CUSTOM_START + 55,
5790
5791   EL_CUSTOM_START + 56,
5792   EL_CUSTOM_START + 57,
5793   EL_CUSTOM_START + 58,
5794   EL_CUSTOM_START + 59,
5795
5796   EL_CUSTOM_START + 60,
5797   EL_CUSTOM_START + 61,
5798   EL_CUSTOM_START + 62,
5799   EL_CUSTOM_START + 63,
5800
5801   EL_CUSTOM_START + 64,
5802   EL_CUSTOM_START + 65,
5803   EL_CUSTOM_START + 66,
5804   EL_CUSTOM_START + 67,
5805
5806   EL_CUSTOM_START + 68,
5807   EL_CUSTOM_START + 69,
5808   EL_CUSTOM_START + 70,
5809   EL_CUSTOM_START + 71,
5810
5811   EL_CUSTOM_START + 72,
5812   EL_CUSTOM_START + 73,
5813   EL_CUSTOM_START + 74,
5814   EL_CUSTOM_START + 75,
5815
5816   EL_CUSTOM_START + 76,
5817   EL_CUSTOM_START + 77,
5818   EL_CUSTOM_START + 78,
5819   EL_CUSTOM_START + 79,
5820
5821   EL_CUSTOM_START + 80,
5822   EL_CUSTOM_START + 81,
5823   EL_CUSTOM_START + 82,
5824   EL_CUSTOM_START + 83,
5825
5826   EL_CUSTOM_START + 84,
5827   EL_CUSTOM_START + 85,
5828   EL_CUSTOM_START + 86,
5829   EL_CUSTOM_START + 87,
5830
5831   EL_CUSTOM_START + 88,
5832   EL_CUSTOM_START + 89,
5833   EL_CUSTOM_START + 90,
5834   EL_CUSTOM_START + 91,
5835
5836   EL_CUSTOM_START + 92,
5837   EL_CUSTOM_START + 93,
5838   EL_CUSTOM_START + 94,
5839   EL_CUSTOM_START + 95,
5840
5841   EL_CUSTOM_START + 96,
5842   EL_CUSTOM_START + 97,
5843   EL_CUSTOM_START + 98,
5844   EL_CUSTOM_START + 99,
5845
5846   EL_CUSTOM_START + 100,
5847   EL_CUSTOM_START + 101,
5848   EL_CUSTOM_START + 102,
5849   EL_CUSTOM_START + 103,
5850
5851   EL_CUSTOM_START + 104,
5852   EL_CUSTOM_START + 105,
5853   EL_CUSTOM_START + 106,
5854   EL_CUSTOM_START + 107,
5855
5856   EL_CUSTOM_START + 108,
5857   EL_CUSTOM_START + 109,
5858   EL_CUSTOM_START + 110,
5859   EL_CUSTOM_START + 111,
5860
5861   EL_CUSTOM_START + 112,
5862   EL_CUSTOM_START + 113,
5863   EL_CUSTOM_START + 114,
5864   EL_CUSTOM_START + 115,
5865
5866   EL_CUSTOM_START + 116,
5867   EL_CUSTOM_START + 117,
5868   EL_CUSTOM_START + 118,
5869   EL_CUSTOM_START + 119,
5870
5871   EL_CUSTOM_START + 120,
5872   EL_CUSTOM_START + 121,
5873   EL_CUSTOM_START + 122,
5874   EL_CUSTOM_START + 123,
5875
5876   EL_CUSTOM_START + 124,
5877   EL_CUSTOM_START + 125,
5878   EL_CUSTOM_START + 126,
5879   EL_CUSTOM_START + 127,
5880
5881   EL_CUSTOM_START + 128,
5882   EL_CUSTOM_START + 129,
5883   EL_CUSTOM_START + 130,
5884   EL_CUSTOM_START + 131,
5885
5886   EL_CUSTOM_START + 132,
5887   EL_CUSTOM_START + 133,
5888   EL_CUSTOM_START + 134,
5889   EL_CUSTOM_START + 135,
5890
5891   EL_CUSTOM_START + 136,
5892   EL_CUSTOM_START + 137,
5893   EL_CUSTOM_START + 138,
5894   EL_CUSTOM_START + 139,
5895
5896   EL_CUSTOM_START + 140,
5897   EL_CUSTOM_START + 141,
5898   EL_CUSTOM_START + 142,
5899   EL_CUSTOM_START + 143,
5900
5901   EL_CUSTOM_START + 144,
5902   EL_CUSTOM_START + 145,
5903   EL_CUSTOM_START + 146,
5904   EL_CUSTOM_START + 147,
5905
5906   EL_CUSTOM_START + 148,
5907   EL_CUSTOM_START + 149,
5908   EL_CUSTOM_START + 150,
5909   EL_CUSTOM_START + 151,
5910
5911   EL_CUSTOM_START + 152,
5912   EL_CUSTOM_START + 153,
5913   EL_CUSTOM_START + 154,
5914   EL_CUSTOM_START + 155,
5915
5916   EL_CUSTOM_START + 156,
5917   EL_CUSTOM_START + 157,
5918   EL_CUSTOM_START + 158,
5919   EL_CUSTOM_START + 159,
5920
5921   EL_CUSTOM_START + 160,
5922   EL_CUSTOM_START + 161,
5923   EL_CUSTOM_START + 162,
5924   EL_CUSTOM_START + 163,
5925
5926   EL_CUSTOM_START + 164,
5927   EL_CUSTOM_START + 165,
5928   EL_CUSTOM_START + 166,
5929   EL_CUSTOM_START + 167,
5930
5931   EL_CUSTOM_START + 168,
5932   EL_CUSTOM_START + 169,
5933   EL_CUSTOM_START + 170,
5934   EL_CUSTOM_START + 171,
5935
5936   EL_CUSTOM_START + 172,
5937   EL_CUSTOM_START + 173,
5938   EL_CUSTOM_START + 174,
5939   EL_CUSTOM_START + 175,
5940
5941   EL_CUSTOM_START + 176,
5942   EL_CUSTOM_START + 177,
5943   EL_CUSTOM_START + 178,
5944   EL_CUSTOM_START + 179,
5945
5946   EL_CUSTOM_START + 180,
5947   EL_CUSTOM_START + 181,
5948   EL_CUSTOM_START + 182,
5949   EL_CUSTOM_START + 183,
5950
5951   EL_CUSTOM_START + 184,
5952   EL_CUSTOM_START + 185,
5953   EL_CUSTOM_START + 186,
5954   EL_CUSTOM_START + 187,
5955
5956   EL_CUSTOM_START + 188,
5957   EL_CUSTOM_START + 189,
5958   EL_CUSTOM_START + 190,
5959   EL_CUSTOM_START + 191,
5960
5961   EL_CUSTOM_START + 192,
5962   EL_CUSTOM_START + 193,
5963   EL_CUSTOM_START + 194,
5964   EL_CUSTOM_START + 195,
5965
5966   EL_CUSTOM_START + 196,
5967   EL_CUSTOM_START + 197,
5968   EL_CUSTOM_START + 198,
5969   EL_CUSTOM_START + 199,
5970
5971   EL_CUSTOM_START + 200,
5972   EL_CUSTOM_START + 201,
5973   EL_CUSTOM_START + 202,
5974   EL_CUSTOM_START + 203,
5975
5976   EL_CUSTOM_START + 204,
5977   EL_CUSTOM_START + 205,
5978   EL_CUSTOM_START + 206,
5979   EL_CUSTOM_START + 207,
5980
5981   EL_CUSTOM_START + 208,
5982   EL_CUSTOM_START + 209,
5983   EL_CUSTOM_START + 210,
5984   EL_CUSTOM_START + 211,
5985
5986   EL_CUSTOM_START + 212,
5987   EL_CUSTOM_START + 213,
5988   EL_CUSTOM_START + 214,
5989   EL_CUSTOM_START + 215,
5990
5991   EL_CUSTOM_START + 216,
5992   EL_CUSTOM_START + 217,
5993   EL_CUSTOM_START + 218,
5994   EL_CUSTOM_START + 219,
5995
5996   EL_CUSTOM_START + 220,
5997   EL_CUSTOM_START + 221,
5998   EL_CUSTOM_START + 222,
5999   EL_CUSTOM_START + 223,
6000
6001   EL_CUSTOM_START + 224,
6002   EL_CUSTOM_START + 225,
6003   EL_CUSTOM_START + 226,
6004   EL_CUSTOM_START + 227,
6005
6006   EL_CUSTOM_START + 228,
6007   EL_CUSTOM_START + 229,
6008   EL_CUSTOM_START + 230,
6009   EL_CUSTOM_START + 231,
6010
6011   EL_CUSTOM_START + 232,
6012   EL_CUSTOM_START + 233,
6013   EL_CUSTOM_START + 234,
6014   EL_CUSTOM_START + 235,
6015
6016   EL_CUSTOM_START + 236,
6017   EL_CUSTOM_START + 237,
6018   EL_CUSTOM_START + 238,
6019   EL_CUSTOM_START + 239,
6020
6021   EL_CUSTOM_START + 240,
6022   EL_CUSTOM_START + 241,
6023   EL_CUSTOM_START + 242,
6024   EL_CUSTOM_START + 243,
6025
6026   EL_CUSTOM_START + 244,
6027   EL_CUSTOM_START + 245,
6028   EL_CUSTOM_START + 246,
6029   EL_CUSTOM_START + 247,
6030
6031   EL_CUSTOM_START + 248,
6032   EL_CUSTOM_START + 249,
6033   EL_CUSTOM_START + 250,
6034   EL_CUSTOM_START + 251,
6035
6036   EL_CUSTOM_START + 252,
6037   EL_CUSTOM_START + 253,
6038   EL_CUSTOM_START + 254,
6039   EL_CUSTOM_START + 255
6040 };
6041 static int *editor_hl_custom_ptr = editor_hl_custom;
6042 static int *editor_el_custom_ptr = editor_el_custom;
6043 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
6044 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
6045
6046 static int editor_hl_group[] =
6047 {
6048   EL_INTERNAL_CASCADE_GE_ACTIVE,
6049   EL_CHAR('G'),
6050   EL_CHAR('E'),
6051   EL_EMPTY,
6052 };
6053
6054 static int editor_el_group[] =
6055 {
6056   EL_GROUP_START + 0,
6057   EL_GROUP_START + 1,
6058   EL_GROUP_START + 2,
6059   EL_GROUP_START + 3,
6060
6061   EL_GROUP_START + 4,
6062   EL_GROUP_START + 5,
6063   EL_GROUP_START + 6,
6064   EL_GROUP_START + 7,
6065
6066   EL_GROUP_START + 8,
6067   EL_GROUP_START + 9,
6068   EL_GROUP_START + 10,
6069   EL_GROUP_START + 11,
6070
6071   EL_GROUP_START + 12,
6072   EL_GROUP_START + 13,
6073   EL_GROUP_START + 14,
6074   EL_GROUP_START + 15,
6075
6076   EL_GROUP_START + 16,
6077   EL_GROUP_START + 17,
6078   EL_GROUP_START + 18,
6079   EL_GROUP_START + 19,
6080
6081   EL_GROUP_START + 20,
6082   EL_GROUP_START + 21,
6083   EL_GROUP_START + 22,
6084   EL_GROUP_START + 23,
6085
6086   EL_GROUP_START + 24,
6087   EL_GROUP_START + 25,
6088   EL_GROUP_START + 26,
6089   EL_GROUP_START + 27,
6090
6091   EL_GROUP_START + 28,
6092   EL_GROUP_START + 29,
6093   EL_GROUP_START + 30,
6094   EL_GROUP_START + 31
6095 };
6096 static int *editor_hl_group_ptr = editor_hl_group;
6097 static int *editor_el_group_ptr = editor_el_group;
6098 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
6099 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
6100
6101 static int editor_hl_empty_space[] =
6102 {
6103   EL_INTERNAL_CASCADE_ES_ACTIVE,
6104   EL_CHAR('E'),
6105   EL_CHAR('S'),
6106   EL_EMPTY,
6107 };
6108
6109 static int editor_el_empty_space[] =
6110 {
6111   EL_EMPTY_SPACE_1,
6112   EL_EMPTY_SPACE_2,
6113   EL_EMPTY_SPACE_3,
6114   EL_EMPTY_SPACE_4,
6115
6116   EL_EMPTY_SPACE_5,
6117   EL_EMPTY_SPACE_6,
6118   EL_EMPTY_SPACE_7,
6119   EL_EMPTY_SPACE_8,
6120
6121   EL_EMPTY_SPACE_9,
6122   EL_EMPTY_SPACE_10,
6123   EL_EMPTY_SPACE_11,
6124   EL_EMPTY_SPACE_12,
6125
6126   EL_EMPTY_SPACE_13,
6127   EL_EMPTY_SPACE_14,
6128   EL_EMPTY_SPACE_15,
6129   EL_EMPTY_SPACE_16
6130 };
6131 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
6132 static int *editor_el_empty_space_ptr = editor_el_empty_space;
6133 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
6134 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
6135
6136 static int editor_hl_reference[] =
6137 {
6138   EL_INTERNAL_CASCADE_REF_ACTIVE,
6139   EL_CHAR('R'),
6140   EL_CHAR('E'),
6141   EL_CHAR('F')
6142 };
6143
6144 static int editor_el_reference[] =
6145 {
6146   EL_TRIGGER_PLAYER,
6147   EL_TRIGGER_ELEMENT,
6148   EL_TRIGGER_CE_VALUE,
6149   EL_TRIGGER_CE_SCORE,
6150
6151   EL_SELF,
6152   EL_ANY_ELEMENT,
6153   EL_CURRENT_CE_VALUE,
6154   EL_CURRENT_CE_SCORE,
6155
6156   EL_PREV_CE_8,
6157   EL_PREV_CE_7,
6158   EL_PREV_CE_6,
6159   EL_PREV_CE_5,
6160
6161   EL_PREV_CE_4,
6162   EL_PREV_CE_3,
6163   EL_PREV_CE_2,
6164   EL_PREV_CE_1,
6165
6166   EL_NEXT_CE_1,
6167   EL_NEXT_CE_2,
6168   EL_NEXT_CE_3,
6169   EL_NEXT_CE_4,
6170
6171   EL_NEXT_CE_5,
6172   EL_NEXT_CE_6,
6173   EL_NEXT_CE_7,
6174   EL_NEXT_CE_8,
6175 };
6176 static int *editor_hl_reference_ptr = editor_hl_reference;
6177 static int *editor_el_reference_ptr = editor_el_reference;
6178 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
6179 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
6180
6181 static int editor_hl_user_defined[] =
6182 {
6183   EL_INTERNAL_CASCADE_USER_ACTIVE,
6184   EL_CHAR('M'),
6185   EL_CHAR('Y'),
6186   EL_EMPTY,
6187 };
6188
6189 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
6190 static int *editor_el_user_defined_ptr = NULL;
6191 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
6192 static int num_editor_el_user_defined = 0;
6193
6194 static int editor_hl_dynamic[] =
6195 {
6196   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
6197   EL_CHAR('U'),
6198   EL_CHAR('S'),
6199   EL_CHAR('E'),
6200 };
6201
6202 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
6203 static int *editor_el_dynamic_ptr = NULL;
6204 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
6205 static int num_editor_el_dynamic = 0;
6206
6207 static int editor_hl_empty[] = { EL_EMPTY };
6208 static int *editor_el_empty = NULL;     // dynamically allocated
6209
6210 static int *editor_hl_empty_ptr = editor_hl_empty;
6211 static int *editor_el_empty_ptr = NULL;
6212 static int num_editor_hl_empty = 0;
6213 static int num_editor_el_empty = 0;     // dynamically determined, if needed
6214
6215 static boolean use_el_empty = FALSE;
6216
6217 static int *editor_elements = NULL;     // dynamically allocated
6218 static int num_editor_elements = 0;     // dynamically determined
6219
6220 static boolean setup_editor_cascade_never = FALSE;
6221
6222 static boolean setup_editor_el_players                  = TRUE;
6223 static boolean setup_editor_el_boulderdash              = TRUE;
6224 static boolean setup_editor_el_boulderdash_native       = TRUE;
6225 static boolean setup_editor_el_emerald_mine             = TRUE;
6226 static boolean setup_editor_el_emerald_mine_club        = TRUE;
6227 static boolean setup_editor_el_more                     = TRUE;
6228 static boolean setup_editor_el_sokoban                  = TRUE;
6229 static boolean setup_editor_el_supaplex                 = TRUE;
6230 static boolean setup_editor_el_diamond_caves            = TRUE;
6231 static boolean setup_editor_el_dx_boulderdash           = TRUE;
6232 static boolean setup_editor_el_mirror_magic             = TRUE;
6233 static boolean setup_editor_el_deflektor                = TRUE;
6234 static boolean setup_editor_el_chars                    = TRUE;
6235 static boolean setup_editor_el_steel_chars              = TRUE;
6236 static boolean setup_editor_el_custom                   = TRUE;
6237 static boolean setup_editor_el_user_defined             = TRUE;
6238 static boolean setup_editor_el_dynamic                  = TRUE;
6239
6240 static int editor_hl_unused[] = { EL_EMPTY };
6241 static int *editor_hl_unused_ptr = editor_hl_unused;
6242 static int num_editor_hl_unused = 0;
6243
6244 static struct
6245 {
6246   boolean *setup_value;
6247   boolean *setup_cascade_value;
6248
6249   int **headline_list;
6250   int *headline_list_size;
6251
6252   int **element_list;
6253   int *element_list_size;
6254
6255   boolean last_setup_value;
6256 }
6257 editor_elements_info[] =
6258 {
6259   {
6260     &setup_editor_el_players,
6261     &setup_editor_cascade_never,
6262     &editor_hl_unused_ptr,              &num_editor_hl_unused,
6263     &editor_el_players_ptr,             &num_editor_el_players
6264   },
6265   {
6266     &setup_editor_el_boulderdash,
6267     &setup.editor_cascade.el_bd,
6268     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
6269     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
6270   },
6271   {
6272     &setup_editor_el_boulderdash_native,
6273     &setup.editor_cascade.el_bd_native,
6274     &editor_hl_boulderdash_native_ptr,  &num_editor_hl_boulderdash_native,
6275     &editor_el_boulderdash_native_ptr,  &num_editor_el_boulderdash_native
6276   },
6277   {
6278     &setup_editor_el_emerald_mine,
6279     &setup.editor_cascade.el_em,
6280     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
6281     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
6282   },
6283   {
6284     &setup_editor_el_emerald_mine_club,
6285     &setup.editor_cascade.el_emc,
6286     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
6287     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
6288   },
6289   {
6290     &setup_editor_el_more,
6291     &setup.editor_cascade.el_rnd,
6292     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
6293     &editor_el_rnd_ptr,                 &num_editor_el_rnd
6294   },
6295   {
6296     &setup_editor_el_sokoban,
6297     &setup.editor_cascade.el_sb,
6298     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
6299     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
6300   },
6301   {
6302     &setup_editor_el_supaplex,
6303     &setup.editor_cascade.el_sp,
6304     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
6305     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
6306   },
6307   {
6308     &setup_editor_el_diamond_caves,
6309     &setup.editor_cascade.el_dc,
6310     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
6311     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
6312   },
6313   {
6314     &setup_editor_el_dx_boulderdash,
6315     &setup.editor_cascade.el_dx,
6316     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
6317     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
6318   },
6319   {
6320     &setup_editor_el_mirror_magic,
6321     &setup.editor_cascade.el_mm,
6322     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
6323     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
6324   },
6325   {
6326     &setup_editor_el_deflektor,
6327     &setup.editor_cascade.el_df,
6328     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
6329     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
6330   },
6331   {
6332     &setup_editor_el_chars,
6333     &setup.editor_cascade.el_chars,
6334     &editor_hl_chars_ptr,               &num_editor_hl_chars,
6335     &editor_el_chars_ptr,               &num_editor_el_chars
6336   },
6337   {
6338     &setup_editor_el_steel_chars,
6339     &setup.editor_cascade.el_steel_chars,
6340     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
6341     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
6342   },
6343   {
6344     &setup_editor_el_custom,
6345     &setup.editor_cascade.el_ce,
6346     &editor_hl_custom_ptr,              &num_editor_hl_custom,
6347     &editor_el_custom_ptr,              &num_editor_el_custom
6348   },
6349   {
6350     &setup_editor_el_custom,
6351     &setup.editor_cascade.el_ge,
6352     &editor_hl_group_ptr,               &num_editor_hl_group,
6353     &editor_el_group_ptr,               &num_editor_el_group
6354   },
6355   {
6356     &setup_editor_el_custom,
6357     &setup.editor_cascade.el_es,
6358     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
6359     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
6360   },
6361   {
6362     &setup_editor_el_custom,
6363     &setup.editor_cascade.el_ref,
6364     &editor_hl_reference_ptr,           &num_editor_hl_reference,
6365     &editor_el_reference_ptr,           &num_editor_el_reference
6366   },
6367   {
6368     &setup_editor_el_user_defined,
6369     &setup.editor_cascade.el_user,
6370     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
6371     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
6372   },
6373   {
6374     &setup_editor_el_dynamic,
6375     &setup.editor_cascade.el_dynamic,
6376     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
6377     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
6378   },
6379   {
6380     &use_el_empty,
6381     &use_el_empty,
6382     &editor_hl_empty_ptr,               &num_editor_hl_empty,
6383     &editor_el_empty_ptr,               &num_editor_el_empty,
6384   },
6385   {
6386     NULL,
6387     NULL,
6388     NULL,                               NULL,
6389     NULL,                               NULL
6390   }
6391 };
6392
6393 static struct XY xy_directions[] =
6394 {
6395   { -1,  0 },
6396   { +1,  0 },
6397   {  0, -1 },
6398   {  0, +1 }
6399 };
6400
6401
6402 // ----------------------------------------------------------------------------
6403 // functions
6404 // ----------------------------------------------------------------------------
6405
6406 static int getMaxInfoTextLength(void)
6407 {
6408   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
6409 }
6410
6411 static int getTextWidthForGadget(char *text)
6412 {
6413   if (text == NULL)
6414     return 0;
6415
6416   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
6417 }
6418
6419 static int getTextWidthForDrawingArea(char *text)
6420 {
6421   if (text == NULL)
6422     return 0;
6423
6424   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_BORDER_SIZE);
6425 }
6426
6427 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
6428 {
6429   return (gi->x + gi->width + getTextWidthForGadget(text));
6430 }
6431
6432 static char *getElementInfoText(int element)
6433 {
6434   char *info_text = NULL;
6435
6436   if (element < MAX_NUM_ELEMENTS)
6437   {
6438     if (strlen(element_info[element].description) > 0)
6439       info_text = element_info[element].description;
6440     else if (element_info[element].custom_description != NULL)
6441       info_text = element_info[element].custom_description;
6442     else if (element_info[element].editor_description != NULL)
6443       info_text = element_info[element].editor_description;
6444   }
6445
6446   if (info_text == NULL)
6447     info_text = INFOTEXT_UNKNOWN_ELEMENT;
6448
6449   return info_text;
6450 }
6451
6452 static char *getElementDescriptionFilenameExt(char *basename)
6453 {
6454   char *elements_subdir = ELEMENTS_DIRECTORY;
6455   static char *elements_subdir2 = NULL;
6456   static char *filename = NULL;
6457
6458   if (elements_subdir2 == NULL)
6459     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
6460
6461   checked_free(filename);
6462
6463   // 1st try: look for element description in current level set directory
6464   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
6465   if (fileExists(filename))
6466     return filename;
6467
6468   free(filename);
6469
6470   // 2nd try: look for element description in the game's base directory
6471   filename = getPath3(options.docs_directory, elements_subdir, basename);
6472   if (fileExists(filename))
6473     return filename;
6474
6475   return NULL;
6476 }
6477
6478 static char *getElementDescriptionFilename(int element)
6479 {
6480   char basename[MAX_FILENAME_LEN];
6481   char *filename;
6482
6483   // 1st try: look for element description file for exactly this element
6484   sprintf(basename, "%s.txt", element_info[element].token_name);
6485   filename = getElementDescriptionFilenameExt(basename);
6486   if (filename != NULL)
6487     return filename;
6488
6489   // 2nd try: look for element description file for this element's class
6490   sprintf(basename, "%s.txt", element_info[element].class_name);
6491   filename = getElementDescriptionFilenameExt(basename);
6492   if (filename != NULL)
6493     return filename;
6494
6495   // 3rd try: look for generic fallback text file for any element
6496   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
6497   if (filename != NULL)
6498     return filename;
6499
6500   return NULL;
6501 }
6502
6503 static boolean suppressBorderElement(void)
6504 {
6505   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
6506           lev_fieldx <= MAX_ED_FIELDX &&
6507           lev_fieldy <= MAX_ED_FIELDY);
6508 }
6509
6510 static void InitDynamicEditorElementList(int **elements, int *num_elements)
6511 {
6512   boolean element_found[NUM_FILE_ELEMENTS];
6513   int i, x, y;
6514
6515   // initialize list of used elements to "not used"
6516   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6517     element_found[i] = FALSE;
6518
6519   // find all elements used in current level
6520   for (y = 0; y < lev_fieldy; y++)
6521   {
6522     for (x = 0; x < lev_fieldx; x++)
6523     {
6524       if (Tile[x][y] >= NUM_FILE_ELEMENTS)      // should never happen
6525         continue;
6526
6527       if (IS_MM_WALL(Tile[x][y]))
6528         element_found[map_mm_wall_element(Tile[x][y])] = TRUE;
6529       else
6530         element_found[Tile[x][y]] = TRUE;
6531     }
6532   }
6533
6534   *num_elements = 0;
6535
6536   // count number of elements used in current level
6537   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6538     if (element_found[i])
6539       (*num_elements)++;
6540
6541   // add space for up to 3 more elements for padding that may be needed
6542   *num_elements += 3;
6543
6544   // free memory for old list of elements, if needed
6545   checked_free(*elements);
6546
6547   // allocate memory for new list of elements
6548   *elements = checked_malloc(*num_elements * sizeof(int));
6549
6550   *num_elements = 0;
6551
6552   // add all elements used in current level (non-custom/group/empty elements)
6553   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6554     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) ||
6555                               IS_GROUP_ELEMENT(i) ||
6556                               IS_EMPTY_ELEMENT(i)))
6557       (*elements)[(*num_elements)++] = i;
6558
6559   // add all elements used in current level (custom/group/empty elements)
6560   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6561     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) ||
6562                              IS_GROUP_ELEMENT(i) ||
6563                              IS_EMPTY_ELEMENT(i)))
6564       (*elements)[(*num_elements)++] = i;
6565
6566   while (*num_elements % 4)     // pad with empty elements, if needed
6567     (*elements)[(*num_elements)++] = EL_EMPTY;
6568 }
6569
6570 static void ReinitializeElementList_EnableSections(void)
6571 {
6572   // default: enable all element sections
6573
6574   setup_editor_el_players               = TRUE;
6575   setup_editor_el_boulderdash           = TRUE;
6576   setup_editor_el_boulderdash_native    = TRUE;
6577   setup_editor_el_emerald_mine          = TRUE;
6578   setup_editor_el_emerald_mine_club     = TRUE;
6579   setup_editor_el_more                  = TRUE;
6580   setup_editor_el_sokoban               = TRUE;
6581   setup_editor_el_supaplex              = TRUE;
6582   setup_editor_el_diamond_caves         = TRUE;
6583   setup_editor_el_dx_boulderdash        = TRUE;
6584   setup_editor_el_mirror_magic          = TRUE;
6585   setup_editor_el_deflektor             = TRUE;
6586   setup_editor_el_chars                 = TRUE;
6587   setup_editor_el_steel_chars           = TRUE;
6588
6589   setup_editor_el_custom                = TRUE;
6590   setup_editor_el_user_defined          = TRUE;
6591   setup_editor_el_dynamic               = TRUE;
6592
6593   // now disable all element sections not to be displayed
6594
6595   if (!setup.editor.el_classic)
6596   {
6597     setup_editor_el_players             = FALSE;
6598     setup_editor_el_boulderdash         = FALSE;
6599     setup_editor_el_boulderdash_native  = FALSE;
6600     setup_editor_el_emerald_mine        = FALSE;
6601     setup_editor_el_emerald_mine_club   = FALSE;
6602     setup_editor_el_more                = FALSE;
6603     setup_editor_el_sokoban             = FALSE;
6604     setup_editor_el_supaplex            = FALSE;
6605     setup_editor_el_diamond_caves       = FALSE;
6606     setup_editor_el_dx_boulderdash      = FALSE;
6607     setup_editor_el_mirror_magic        = FALSE;
6608     setup_editor_el_deflektor           = FALSE;
6609     setup_editor_el_chars               = FALSE;
6610     setup_editor_el_steel_chars         = FALSE;
6611   }
6612
6613   if (!setup.editor.el_custom)
6614   {
6615     setup_editor_el_custom              = FALSE;
6616   }
6617
6618   if (!setup.editor.el_user_defined)
6619   {
6620     setup_editor_el_user_defined        = FALSE;
6621   }
6622
6623   if (!setup.editor.el_dynamic)
6624   {
6625     setup_editor_el_dynamic             = FALSE;
6626   }
6627
6628   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
6629   {
6630     setup_editor_el_boulderdash_native  = FALSE;
6631     setup_editor_el_mirror_magic        = FALSE;
6632     setup_editor_el_deflektor           = FALSE;
6633   }
6634   else if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
6635   {
6636     setup_editor_el_players             = FALSE;
6637     setup_editor_el_boulderdash         = FALSE;
6638     setup_editor_el_emerald_mine        = FALSE;
6639     setup_editor_el_emerald_mine_club   = FALSE;
6640     setup_editor_el_more                = FALSE;
6641     setup_editor_el_sokoban             = FALSE;
6642     setup_editor_el_supaplex            = FALSE;
6643     setup_editor_el_diamond_caves       = FALSE;
6644     setup_editor_el_dx_boulderdash      = FALSE;
6645     setup_editor_el_mirror_magic        = FALSE;
6646     setup_editor_el_deflektor           = FALSE;
6647     setup_editor_el_chars               = FALSE;
6648     setup_editor_el_steel_chars         = FALSE;
6649
6650     setup_editor_el_custom              = FALSE;
6651   }
6652   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
6653   {
6654     setup_editor_el_boulderdash         = FALSE;
6655     setup_editor_el_boulderdash_native  = FALSE;
6656     setup_editor_el_more                = FALSE;
6657     setup_editor_el_sokoban             = FALSE;
6658     setup_editor_el_supaplex            = FALSE;
6659     setup_editor_el_diamond_caves       = FALSE;
6660     setup_editor_el_dx_boulderdash      = FALSE;
6661     setup_editor_el_mirror_magic        = FALSE;
6662     setup_editor_el_deflektor           = FALSE;
6663     setup_editor_el_steel_chars         = FALSE;
6664
6665     setup_editor_el_custom              = FALSE;
6666   }
6667   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
6668   {
6669     setup_editor_el_players             = FALSE;
6670     setup_editor_el_boulderdash         = FALSE;
6671     setup_editor_el_boulderdash_native  = FALSE;
6672     setup_editor_el_emerald_mine        = FALSE;
6673     setup_editor_el_emerald_mine_club   = FALSE;
6674     setup_editor_el_more                = FALSE;
6675     setup_editor_el_sokoban             = FALSE;
6676     setup_editor_el_diamond_caves       = FALSE;
6677     setup_editor_el_dx_boulderdash      = FALSE;
6678     setup_editor_el_mirror_magic        = FALSE;
6679     setup_editor_el_deflektor           = FALSE;
6680     setup_editor_el_chars               = FALSE;
6681     setup_editor_el_steel_chars         = FALSE;
6682
6683     setup_editor_el_custom              = FALSE;
6684   }
6685   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
6686   {
6687     setup_editor_el_players             = FALSE;
6688     setup_editor_el_boulderdash         = FALSE;
6689     setup_editor_el_boulderdash_native  = FALSE;
6690     setup_editor_el_emerald_mine        = FALSE;
6691     setup_editor_el_emerald_mine_club   = FALSE;
6692     setup_editor_el_more                = FALSE;
6693     setup_editor_el_sokoban             = FALSE;
6694     setup_editor_el_supaplex            = FALSE;
6695     setup_editor_el_diamond_caves       = FALSE;
6696     setup_editor_el_dx_boulderdash      = FALSE;
6697     setup_editor_el_steel_chars         = FALSE;
6698
6699     setup_editor_el_custom              = FALSE;
6700   }
6701 }
6702
6703 static void ReinitializeElementList(void)
6704 {
6705   static boolean initialization_needed = TRUE;
6706   int pos = 0;
6707   int i, j;
6708
6709   ReinitializeElementList_EnableSections();
6710
6711   if (initialization_needed)
6712   {
6713     LoadSetup_EditorCascade();          // load last editor cascade state
6714
6715     // initialize editor cascade element from saved cascade state
6716     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6717     {
6718       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
6719       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
6720
6721       if (IS_EDITOR_CASCADE(*cascade_element))
6722         *cascade_element =
6723           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
6724            EL_CASCADE_INACTIVE(*cascade_element));
6725     }
6726
6727     initialization_needed = FALSE;
6728   }
6729
6730   checked_free(editor_elements);
6731
6732   // reload optional user defined element list for each invocation of editor
6733   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
6734                                    &num_editor_el_user_defined);
6735
6736   // initialize dynamic level element list for each invocation of editor
6737   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
6738                                &num_editor_el_dynamic);
6739
6740   // initialize list of empty elements (used for padding, if needed)
6741   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6742     editor_el_empty[i] = EL_EMPTY;
6743
6744   // do some sanity checks for each element from element list
6745   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6746   {
6747     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6748     {
6749       int element = (*editor_elements_info[i].element_list)[j];
6750
6751       if (element >= NUM_FILE_ELEMENTS)
6752         Warn("editor element %d is runtime element", element);
6753
6754       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
6755         Warn("no element description text for element %d", element);
6756     }
6757   }
6758
6759   num_editor_elements = 0;
6760   use_el_empty = FALSE;
6761
6762   // determine size of element list
6763   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6764   {
6765     if (*editor_elements_info[i].setup_value)
6766     {
6767       boolean found_inactive_cascade = FALSE;
6768
6769       if (setup.editor.el_headlines)
6770       {
6771         // required for correct padding of palette headline buttons
6772         if (*editor_elements_info[i].headline_list_size > 0)
6773           num_editor_elements += ED_ELEMENTLIST_COLS;
6774
6775         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6776         {
6777           int element = (*editor_elements_info[i].headline_list)[j];
6778
6779           if (IS_EDITOR_CASCADE_INACTIVE(element))
6780             found_inactive_cascade = TRUE;
6781         }
6782       }
6783
6784       if (found_inactive_cascade)
6785         continue;
6786
6787       // required for correct padding of palette element buttons
6788       int element_list_size = *editor_elements_info[i].element_list_size;
6789       int element_rows =
6790         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6791       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6792
6793       num_editor_elements += element_buttons;
6794     }
6795   }
6796
6797   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
6798   {
6799     // offer at least as many elements as element buttons exist
6800     use_el_empty = TRUE;
6801     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
6802
6803     num_editor_elements += num_editor_el_empty;
6804   }
6805   else
6806   {
6807     num_editor_el_empty = 0;
6808   }
6809
6810   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
6811
6812   // fill element list
6813   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6814   {
6815     boolean found_inactive_cascade = FALSE;
6816
6817     if (*editor_elements_info[i].setup_value)
6818     {
6819       if (setup.editor.el_headlines)
6820       {
6821         // required for correct padding of palette headline buttons
6822         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
6823                              ED_ELEMENTLIST_COLS : 0);
6824
6825         for (j = 0; j < headline_size; j++)
6826         {
6827           // use empty elements for padding of palette headline buttons
6828           int element = (j < *editor_elements_info[i].headline_list_size ?
6829                          (*editor_elements_info[i].headline_list)[j] :
6830                          editor_el_empty[0]);
6831
6832           editor_elements[pos++] = element;
6833
6834           if (IS_EDITOR_CASCADE_INACTIVE(element))
6835             found_inactive_cascade = TRUE;
6836         }
6837       }
6838
6839       if (found_inactive_cascade)
6840         continue;
6841
6842       // required for correct padding of palette element buttons
6843       int element_list_size = *editor_elements_info[i].element_list_size;
6844       int element_rows =
6845         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6846       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6847
6848       // copy all elements from element list
6849       for (j = 0; j < element_list_size; j++)
6850         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
6851
6852       // use empty elements for padding of palette element buttons
6853       for (j = 0; j < element_buttons - element_list_size; j++)
6854         editor_elements[pos++] = editor_el_empty[0];
6855     }
6856   }
6857
6858   // (this function is also called before editor gadgets are initialized!)
6859   AdjustElementListScrollbar();
6860 }
6861
6862 void PrintEditorElementList(void)
6863 {
6864   boolean *stop = &setup_editor_el_user_defined;
6865   int i, j;
6866
6867   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
6868   {
6869     int cascade_element = (*editor_elements_info[i].headline_list)[0];
6870
6871     if (IS_EDITOR_CASCADE(cascade_element))
6872     {
6873       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
6874       char *headline = element_info[cascade_element_show].editor_description;
6875
6876       PrintLineWithPrefix("# ", "-", 77);
6877       Print("# %s\n", headline);
6878       PrintLineWithPrefix("# ", "-", 77);
6879     }
6880
6881     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6882     {
6883       int element = (*editor_elements_info[i].headline_list)[j];
6884
6885       if (IS_EDITOR_CASCADE(element))
6886         element = EL_CHAR_MINUS;
6887
6888       Print("# %s\n", element_info[element].token_name);
6889     }
6890
6891     if (j > 0)
6892       Print("#\n");
6893
6894     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6895     {
6896       int element = (*editor_elements_info[i].element_list)[j];
6897
6898       Print("# %s\n", element_info[element].token_name);
6899     }
6900
6901     if (j > 0)
6902       Print("#\n");
6903   }
6904 }
6905
6906 static void ReinitializeElementListButtons(void)
6907 {
6908   static boolean last_setup_value_headlines = FALSE;
6909   static boolean initialization_needed = TRUE;
6910   int i;
6911
6912   if (!initialization_needed)   // check if editor element setup has changed
6913   {
6914     if (last_setup_value_headlines != setup.editor.el_headlines)
6915       initialization_needed = TRUE;
6916
6917     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6918       if (editor_elements_info[i].last_setup_value !=
6919           *editor_elements_info[i].setup_value)
6920         initialization_needed = TRUE;
6921   }
6922
6923   if (!initialization_needed)
6924     return;
6925
6926   FreeLevelEditorGadgets();
6927   CreateLevelEditorGadgets();
6928
6929   // store current setup values for next invocation of this function
6930   last_setup_value_headlines = setup.editor.el_headlines;
6931   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6932     editor_elements_info[i].last_setup_value =
6933       *editor_elements_info[i].setup_value;
6934
6935   initialization_needed = FALSE;
6936 }
6937
6938 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
6939                               boolean input)
6940 {
6941   int border_graphic =
6942     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
6943   struct GraphicInfo *g = &graphic_info[border_graphic];
6944   Bitmap *src_bitmap = g->bitmap;
6945   int src_x = g->src_x;
6946   int src_y = g->src_y;
6947   int border_size = g->border_size;
6948   int border_xpos = g->width  - border_size;
6949   int border_ypos = g->height - border_size;
6950   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6951   int i;
6952
6953   BlitBitmap(src_bitmap, drawto, src_x, src_y,
6954              border_size, border_size,
6955              dest_x - border_size, dest_y - border_size);
6956   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
6957              border_size, border_size,
6958              dest_x + width, dest_y - border_size);
6959   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
6960              border_size, border_size,
6961              dest_x - border_size, dest_y + height);
6962   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
6963              border_size, border_size,
6964              dest_x + width, dest_y + height);
6965
6966   for (i = 0; i < width / tilesize; i++)
6967   {
6968     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
6969                tilesize, border_size,
6970                dest_x + i * tilesize, dest_y - border_size);
6971     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
6972                tilesize, border_size,
6973                dest_x + i * tilesize, dest_y + height);
6974   }
6975
6976   for (i = 0; i < height / tilesize; i++)
6977   {
6978     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
6979                border_size, tilesize,
6980                dest_x - border_size, dest_y + i * tilesize);
6981     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
6982                border_size, tilesize,
6983                dest_x + width, dest_y + i * tilesize);
6984   }
6985
6986   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
6987 }
6988
6989 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
6990 {
6991   int xsize_tile = MAX(ed_tilesize, xsize);
6992   int ysize_tile = MAX(ed_tilesize, ysize);
6993   int xsize_full = xsize + 1;
6994   int ysize_full = ysize + 1;
6995   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
6996   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
6997   Pixel line_color = getTabulatorBarColor();
6998
6999   if (line_color == BLACK_PIXEL)                // black => transparent
7000     return;
7001
7002   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
7003   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
7004   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
7005 }
7006
7007 static void DrawEditorLevelBorderLinesIfNeeded(void)
7008 {
7009   int xsize = lev_fieldx * ed_tilesize;
7010   int ysize = lev_fieldy * ed_tilesize;
7011   int line_size = getTabulatorBarHeight();
7012
7013   if (!suppressBorderElement())
7014     return;
7015
7016   // draw little border line around editable level playfield
7017
7018   if (xsize < SXSIZE)
7019     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
7020
7021   if (ysize < SYSIZE)
7022     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
7023
7024   if (xsize < SXSIZE && ysize < SYSIZE)
7025     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
7026 }
7027
7028 static void DrawEditorElement(int x, int y, int element)
7029 {
7030   DrawSizedElement(x, y, element, ed_tilesize);
7031 }
7032
7033 static void DrawEditorElementThruMask(int x, int y, int element)
7034 {
7035   DrawSizedElementThruMask(x, y, element, ed_tilesize);
7036 }
7037
7038 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
7039 {
7040   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
7041 }
7042
7043 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
7044 {
7045   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
7046   DrawEditorLevelBorderLinesIfNeeded();
7047 }
7048
7049 static void DrawDrawingArea(int id)
7050 {
7051   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7052   int x, y;
7053
7054   int *value = drawingarea_info[id].value;
7055   int area_xsize = drawingarea_info[id].area_xsize;
7056   int area_ysize = drawingarea_info[id].area_ysize;
7057   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
7058
7059   for (x = 0; x < area_xsize; x++)
7060     for (y = 0; y < area_ysize; y++)
7061       DrawSizedGraphicExt(drawto,
7062                           gi->x + x * tilesize,
7063                           gi->y + y * tilesize,
7064                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
7065 }
7066
7067 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
7068 {
7069   int x, y;
7070   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
7071   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
7072
7073   BlitBitmap(drawto, drawto,
7074              SX + (dx == -1 ? ed_tilesize : 0),
7075              SY + (dy == -1 ? ed_tilesize : 0),
7076              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
7077              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
7078              SX + (dx == +1 ? ed_tilesize : 0),
7079              SY + (dy == +1 ? ed_tilesize : 0));
7080
7081   if (dx)
7082   {
7083     x = (dx == 1 ? 0 : ed_fieldx - 1);
7084     for (y = 0; y < ed_fieldy; y++)
7085       DrawEditorElementOrWall(x, y, from_x, from_y);
7086   }
7087   else if (dy)
7088   {
7089     y = (dy == 1 ? 0 : ed_fieldy - 1);
7090     for (x = 0; x < ed_fieldx; x++)
7091       DrawEditorElementOrWall(x, y, from_x, from_y);
7092   }
7093
7094   redraw_mask |= REDRAW_FIELD;
7095   BackToFront();
7096 }
7097
7098 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
7099                                    int *x, int *y)
7100 {
7101   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
7102 }
7103
7104 static void CreateControlButtons(void)
7105 {
7106   struct GadgetInfo *gi;
7107   int i;
7108
7109   // create toolbox buttons
7110   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7111   {
7112     int type_id = controlbutton_info[i].gadget_id;      // same as gadget ID here
7113     int id = controlbutton_info[i].gadget_id;
7114     int type = controlbutton_info[i].gadget_type;
7115     int graphic = controlbutton_info[i].graphic;
7116     struct XYTileSize *pos = controlbutton_info[i].pos;
7117     struct GraphicInfo *gd = &graphic_info[graphic];
7118     Bitmap *deco_bitmap = NULL;
7119     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
7120     int tile_size = 0, deco_shift = 0;
7121     boolean deco_masked = FALSE;
7122     int gd_x1 = gd->src_x;
7123     int gd_y1 = gd->src_y;
7124     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7125     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7126     int gd_x1a = gd->src_x + gd->active_xoffset;
7127     int gd_y1a = gd->src_y + gd->active_yoffset;
7128     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7129     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7130     int x = pos->x;
7131     int y = pos->y;
7132     unsigned int event_mask;
7133     int radio_button_nr = RADIO_NR_NONE;
7134     boolean checked = FALSE;
7135
7136     if (type_id != i)
7137       Fail("'controlbutton_info' structure corrupted at index %d -- please fix", i);
7138
7139     if (type == GD_TYPE_RADIO_BUTTON)
7140     {
7141       event_mask = GD_EVENT_PRESSED;
7142       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
7143
7144       if (id == drawing_function)
7145         checked = TRUE;
7146     }
7147     else
7148     {
7149       if (id == GADGET_ID_WRAP_LEFT ||
7150           id == GADGET_ID_WRAP_RIGHT ||
7151           id == GADGET_ID_WRAP_UP ||
7152           id == GADGET_ID_WRAP_DOWN)
7153         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7154       else
7155         event_mask = GD_EVENT_RELEASED;
7156     }
7157
7158     if (id == GADGET_ID_PROPERTIES ||
7159         id == GADGET_ID_PALETTE)
7160     {
7161       x += DX;
7162       y += DY;
7163     }
7164     else if (id == GADGET_ID_ELEMENT_LEFT ||
7165              id == GADGET_ID_ELEMENT_MIDDLE ||
7166              id == GADGET_ID_ELEMENT_RIGHT)
7167     {
7168       x += DX;
7169       y += DY;
7170
7171       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
7172                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
7173                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
7174
7175       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
7176                                    editor.button.element_left.tile_size :
7177                                    id == GADGET_ID_ELEMENT_MIDDLE ?
7178                                    editor.button.element_middle.tile_size :
7179                                    id == GADGET_ID_ELEMENT_RIGHT ?
7180                                    editor.button.element_right.tile_size : 0);
7181
7182       // make sure that decoration does not overlap gadget border
7183       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
7184
7185       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
7186
7187       deco_xpos = (gd->width  - tile_size) / 2;
7188       deco_ypos = (gd->height - tile_size) / 2;
7189       deco_shift = 1;
7190       deco_masked = gd->draw_masked;
7191     }
7192     else
7193     {
7194       x += EX;
7195       y += EY;
7196     }
7197
7198     gi = CreateGadget(GDI_CUSTOM_ID, id,
7199                       GDI_CUSTOM_TYPE_ID, type_id,
7200                       GDI_IMAGE_ID, graphic,
7201                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
7202                       GDI_X, x,
7203                       GDI_Y, y,
7204                       GDI_WIDTH, gd->width,
7205                       GDI_HEIGHT, gd->height,
7206                       GDI_TYPE, type,
7207                       GDI_STATE, GD_BUTTON_UNPRESSED,
7208                       GDI_RADIO_NR, radio_button_nr,
7209                       GDI_CHECKED, checked,
7210                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7211                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7212                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7213                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7214                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7215                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7216                       GDI_DECORATION_SIZE, tile_size, tile_size,
7217                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
7218                       GDI_DECORATION_MASKED, deco_masked,
7219                       GDI_EVENT_MASK, event_mask,
7220                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7221                       GDI_CALLBACK_ACTION, HandleControlButtons,
7222                       GDI_END);
7223
7224     if (gi == NULL)
7225       Fail("cannot create gadget");
7226
7227     level_editor_gadget[id] = gi;
7228   }
7229
7230   // these values are not constant, but can change at runtime
7231   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
7232   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
7233   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
7234   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
7235   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
7236   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
7237   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
7238   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
7239   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
7240   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
7241   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
7242   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
7243
7244   // create buttons for scrolling of drawing area and element list
7245   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
7246   {
7247     int id = scrollbutton_info[i].gadget_id;
7248     int type_id = scrollbutton_info[i].gadget_type_id;
7249     int graphic = scrollbutton_info[i].graphic;
7250     struct GraphicInfo *gd = &graphic_info[graphic];
7251     Bitmap *gd_bitmap = gd->bitmap;
7252     int gd_x1 = gd->src_x;
7253     int gd_y1 = gd->src_y;
7254     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7255     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7256     int width  = gd->width;
7257     int height = gd->height;
7258     int x = scrollbutton_pos[i].x;
7259     int y = scrollbutton_pos[i].y;
7260     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7261
7262     if (type_id != i)
7263       Fail("'scrollbutton_info' structure corrupted at index %d -- please fix", i);
7264
7265     if (id == GADGET_ID_SCROLL_LIST_UP ||
7266         id == GADGET_ID_SCROLL_LIST_DOWN)
7267     {
7268       x += PX;
7269       y += PY;
7270     }
7271     else
7272     {
7273       x += SX;
7274       y += SY;
7275     }
7276
7277     gi = CreateGadget(GDI_CUSTOM_ID, id,
7278                       GDI_CUSTOM_TYPE_ID, type_id,
7279                       GDI_IMAGE_ID, graphic,
7280                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
7281                       GDI_X, x,
7282                       GDI_Y, y,
7283                       GDI_WIDTH, width,
7284                       GDI_HEIGHT, height,
7285                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7286                       GDI_STATE, GD_BUTTON_UNPRESSED,
7287                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7288                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7289                       GDI_EVENT_MASK, event_mask,
7290                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7291                       GDI_CALLBACK_ACTION, HandleControlButtons,
7292                       GDI_END);
7293
7294     if (gi == NULL)
7295       Fail("cannot create gadget");
7296
7297     level_editor_gadget[id] = gi;
7298   }
7299
7300   // create buttons for element list
7301   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7302   {
7303     int type_id = i;
7304     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
7305     int graphic = IMG_EDITOR_PALETTE_BUTTON;
7306     struct GraphicInfo *gd = &graphic_info[graphic];
7307     Bitmap *gd_bitmap = gd->bitmap;
7308     Bitmap *deco_bitmap;
7309     int deco_x, deco_y, deco_xpos, deco_ypos;
7310     int gd_x1 = gd->src_x;
7311     int gd_y1 = gd->src_y;
7312     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7313     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7314     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
7315     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
7316     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
7317     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
7318     int element = editor_elements[i];
7319     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
7320     unsigned int event_mask = GD_EVENT_RELEASED;
7321
7322     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
7323
7324     deco_xpos = (gd->width  - tile_size) / 2;
7325     deco_ypos = (gd->height - tile_size) / 2;
7326
7327     gi = CreateGadget(GDI_CUSTOM_ID, id,
7328                       GDI_CUSTOM_TYPE_ID, type_id,
7329                       GDI_IMAGE_ID, graphic,
7330                       GDI_INFO_TEXT, getElementInfoText(element),
7331                       GDI_X, x,
7332                       GDI_Y, y,
7333                       GDI_WIDTH, gd->width,
7334                       GDI_HEIGHT, gd->height,
7335                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7336                       GDI_STATE, GD_BUTTON_UNPRESSED,
7337                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
7338                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
7339                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
7340                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
7341                       GDI_DECORATION_SIZE, tile_size, tile_size,
7342                       GDI_DECORATION_SHIFTING, 1, 1,
7343                       GDI_EVENT_MASK, event_mask,
7344                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7345                       GDI_CALLBACK_ACTION, HandleControlButtons,
7346                       GDI_END);
7347
7348     if (gi == NULL)
7349       Fail("cannot create gadget");
7350
7351     level_editor_gadget[id] = gi;
7352   }
7353 }
7354
7355 static void CreateCounterButtons(void)
7356 {
7357   int max_infotext_len = getMaxInfoTextLength();
7358   int i;
7359
7360   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
7361   {
7362     int type_id = counterbutton_info[i].gadget_type_id;
7363     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
7364     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
7365     int j;
7366
7367     if (type_id != i)
7368       Fail("'counterbutton_info' structure corrupted at index %d -- please fix", i);
7369
7370     // determine horizontal position to the right of specified gadget
7371     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7372       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
7373            ED_GADGET_TEXT_DISTANCE);
7374
7375     // determine horizontal offset for leading text
7376     if (counterbutton_info[i].text_left != NULL)
7377       x += getTextWidthForGadget(counterbutton_info[i].text_left);
7378
7379     for (j = 0; j < 2; j++)
7380     {
7381       struct GadgetInfo *gi;
7382       int id = (j == 0 ?
7383                 counterbutton_info[i].gadget_id_down :
7384                 counterbutton_info[i].gadget_id_up);
7385       int graphic;
7386       struct GraphicInfo *gd;
7387       int gd_x1, gd_x2, gd_y1, gd_y2;
7388       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7389       char infotext[max_infotext_len + 1];
7390
7391       if (i == ED_COUNTER_ID_SELECT_LEVEL)
7392       {
7393         graphic = (j == 0 ?
7394                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
7395                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
7396
7397         event_mask |= GD_EVENT_RELEASED;
7398
7399         if (j == 0)
7400         {
7401           x = DX + editor.button.prev_level.x;
7402           y = DY + editor.button.prev_level.y;
7403         }
7404         else
7405         {
7406           x = DX + editor.button.next_level.x;
7407           y = DY + editor.button.next_level.y;
7408         }
7409       }
7410       else
7411       {
7412         graphic = (j == 0 ?
7413                    IMG_EDITOR_COUNTER_DOWN :
7414                    IMG_EDITOR_COUNTER_UP);
7415       }
7416
7417       gd = &graphic_info[graphic];
7418
7419       gd_x1 = gd->src_x;
7420       gd_y1 = gd->src_y;
7421       gd_x2 = gd->src_x + gd->pressed_xoffset;
7422       gd_y2 = gd->src_y + gd->pressed_yoffset;
7423
7424       sprintf(infotext, "%s counter value by 1, 5 or 10",
7425               (j == 0 ? "decrease" : "increase"));
7426
7427       gi = CreateGadget(GDI_CUSTOM_ID, id,
7428                         GDI_CUSTOM_TYPE_ID, type_id,
7429                         GDI_IMAGE_ID, graphic,
7430                         GDI_INFO_TEXT, infotext,
7431                         GDI_X, x,
7432                         GDI_Y, y,
7433                         GDI_WIDTH, gd->width,
7434                         GDI_HEIGHT, gd->height,
7435                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7436                         GDI_STATE, GD_BUTTON_UNPRESSED,
7437                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7438                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7439                         GDI_EVENT_MASK, event_mask,
7440                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7441                         GDI_CALLBACK_ACTION, HandleCounterButtons,
7442                         GDI_END);
7443
7444       if (gi == NULL)
7445         Fail("cannot create gadget");
7446
7447       level_editor_gadget[id] = gi;
7448       right_gadget_border[id] =
7449         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7450
7451       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
7452
7453       if (j == 0)
7454       {
7455         int font_type = FONT_INPUT_1;
7456         int font_type_active = FONT_INPUT_1_ACTIVE;
7457
7458         id = counterbutton_info[i].gadget_id_text;
7459
7460         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7461
7462         if (i == ED_COUNTER_ID_SELECT_LEVEL)
7463         {
7464           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
7465
7466           font_type = FONT_LEVEL_NUMBER;
7467           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
7468
7469           x = DX + editor.input.level_number.x;
7470           y = DY + editor.input.level_number.y;
7471         }
7472         else
7473         {
7474           graphic = IMG_EDITOR_COUNTER_INPUT;
7475         }
7476
7477         gd = &graphic_info[graphic];
7478
7479         gd_x1 = gd->src_x;
7480         gd_y1 = gd->src_y;
7481         gd_x2 = gd->src_x + gd->active_xoffset;
7482         gd_y2 = gd->src_y + gd->active_yoffset;
7483
7484         gi = CreateGadget(GDI_CUSTOM_ID, id,
7485                           GDI_CUSTOM_TYPE_ID, type_id,
7486                           GDI_IMAGE_ID, graphic,
7487                           GDI_INFO_TEXT, "enter counter value",
7488                           GDI_X, x,
7489                           GDI_Y, y,
7490                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
7491                           GDI_NUMBER_VALUE, 0,
7492                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
7493                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
7494                           GDI_TEXT_SIZE, 3,     // minimal counter text size
7495                           GDI_TEXT_FONT, font_type,
7496                           GDI_TEXT_FONT_ACTIVE, font_type_active,
7497                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7498                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7499                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7500                           GDI_DESIGN_WIDTH, gd->width,
7501                           GDI_EVENT_MASK, event_mask,
7502                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7503                           GDI_CALLBACK_ACTION, HandleCounterButtons,
7504                           GDI_END);
7505
7506         if (gi == NULL)
7507           Fail("cannot create gadget");
7508
7509         level_editor_gadget[id] = gi;
7510         right_gadget_border[id] =
7511           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
7512
7513         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
7514       }
7515     }
7516   }
7517 }
7518
7519 static void CreateDrawingAreas(void)
7520 {
7521   int i;
7522
7523   // these values are not constant, but can change at runtime
7524   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
7525   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
7526
7527   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
7528   {
7529     struct GadgetInfo *gi;
7530     int id = drawingarea_info[i].gadget_id;
7531     int type_id = drawingarea_info[i].gadget_type_id;
7532     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
7533     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
7534     int area_xsize = drawingarea_info[i].area_xsize;
7535     int area_ysize = drawingarea_info[i].area_ysize;
7536     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
7537                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
7538     unsigned int event_mask =
7539       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
7540       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
7541
7542     if (type_id != i)
7543       Fail("'drawingarea_info' structure corrupted at index %d -- please fix", i);
7544
7545     // determine horizontal position to the right of specified gadget
7546     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
7547       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
7548            ED_DRAWINGAREA_TEXT_DISTANCE);
7549
7550     // determine horizontal offset for leading text
7551     if (drawingarea_info[i].text_left != NULL)
7552       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
7553
7554     gi = CreateGadget(GDI_CUSTOM_ID, id,
7555                       GDI_CUSTOM_TYPE_ID, type_id,
7556                       GDI_X, x,
7557                       GDI_Y, y,
7558                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
7559                       GDI_AREA_SIZE, area_xsize, area_ysize,
7560                       GDI_ITEM_SIZE, item_size, item_size,
7561                       GDI_EVENT_MASK, event_mask,
7562                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
7563                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
7564                       GDI_END);
7565
7566     if (gi == NULL)
7567       Fail("cannot create gadget");
7568
7569     level_editor_gadget[id] = gi;
7570     right_gadget_border[id] =
7571       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
7572   }
7573 }
7574
7575 static void CreateTextInputGadgets(void)
7576 {
7577   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
7578   int max_infotext_len = getMaxInfoTextLength();
7579   int i;
7580
7581   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
7582   {
7583     int gd_x1 = gd->src_x;
7584     int gd_y1 = gd->src_y;
7585     int gd_x2 = gd->src_x + gd->active_xoffset;
7586     int gd_y2 = gd->src_y + gd->active_yoffset;
7587     struct GadgetInfo *gi;
7588     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7589     char infotext[MAX_OUTPUT_LINESIZE + 1];
7590     int id = textinput_info[i].gadget_id;
7591     int type_id = textinput_info[i].gadget_type_id;
7592     int x, y;
7593
7594     if (type_id != i)
7595       Fail("'textinput_info' structure corrupted at index %d -- please fix", i);
7596
7597     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
7598     {
7599       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
7600       int border_size = gd->border_size;
7601       int font_nr = FONT_INPUT_1;
7602       int font_height = getFontHeight(font_nr);
7603       int xoffset = element_border + TILEX + element_border + 3 * border_size;
7604       int yoffset = element_border + (TILEY - font_height) / 2;
7605
7606       x = (editor.settings.element_name.x != -1 ?
7607            editor.settings.element_name.x :
7608            editor.settings.element_graphic.x + xoffset) - border_size;
7609       y = (editor.settings.element_name.y != -1 ?
7610            editor.settings.element_name.y :
7611            editor.settings.element_graphic.y + yoffset) - border_size;
7612     }
7613     else
7614     {
7615       x = ED_SETTINGS_X(textinput_info[i].x);
7616       y = ED_SETTINGS_Y(textinput_info[i].y);
7617     }
7618
7619     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
7620     infotext[max_infotext_len] = '\0';
7621
7622     gi = CreateGadget(GDI_CUSTOM_ID, id,
7623                       GDI_CUSTOM_TYPE_ID, type_id,
7624                       GDI_INFO_TEXT, infotext,
7625                       GDI_X, SX + x,
7626                       GDI_Y, SY + y,
7627                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
7628                       GDI_TEXT_VALUE, textinput_info[i].value,
7629                       GDI_TEXT_SIZE, textinput_info[i].size,
7630                       GDI_TEXT_FONT, FONT_INPUT_1,
7631                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7632                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7633                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7634                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7635                       GDI_DESIGN_WIDTH, gd->width,
7636                       GDI_EVENT_MASK, event_mask,
7637                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7638                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
7639                       GDI_END);
7640
7641     if (gi == NULL)
7642       Fail("cannot create gadget");
7643
7644     level_editor_gadget[id] = gi;
7645   }
7646 }
7647
7648 static void CreateTextAreaGadgets(void)
7649 {
7650   int max_infotext_len = getMaxInfoTextLength();
7651   int i;
7652
7653   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
7654   {
7655     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
7656     int gd_x1 = gd->src_x;
7657     int gd_y1 = gd->src_y;
7658     int gd_x2 = gd->src_x + gd->active_xoffset;
7659     int gd_y2 = gd->src_y + gd->active_yoffset;
7660     struct GadgetInfo *gi;
7661     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
7662     char infotext[MAX_OUTPUT_LINESIZE + 1];
7663     int id = textarea_info[i].gadget_id;
7664     int type_id = textarea_info[i].gadget_type_id;
7665     int area_xsize = textarea_info[i].xsize;
7666     int area_ysize = textarea_info[i].ysize;
7667
7668     if (type_id != i)
7669       Fail("'textarea_info' structure corrupted at index %d -- please fix", i);
7670
7671     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
7672     infotext[max_infotext_len] = '\0';
7673
7674     gi = CreateGadget(GDI_CUSTOM_ID, id,
7675                       GDI_CUSTOM_TYPE_ID, type_id,
7676                       GDI_INFO_TEXT, infotext,
7677                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
7678                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
7679                       GDI_TYPE, GD_TYPE_TEXT_AREA,
7680                       GDI_AREA_SIZE, area_xsize, area_ysize,
7681                       GDI_TEXT_FONT, FONT_INPUT_1,
7682                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7683                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7684                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7685                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7686                       GDI_DESIGN_WIDTH, gd->width,
7687                       GDI_EVENT_MASK, event_mask,
7688                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7689                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
7690                       GDI_END);
7691
7692     if (gi == NULL)
7693       Fail("cannot create gadget");
7694
7695     level_editor_gadget[id] = gi;
7696   }
7697 }
7698
7699 static void CreateSelectboxGadgets(void)
7700 {
7701   int max_infotext_len = getMaxInfoTextLength();
7702   int i, j;
7703
7704   for (i = 0; i < ED_NUM_SELECTBOX; i++)
7705   {
7706     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
7707     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
7708     int gd_x1 = gd->src_x;
7709     int gd_y1 = gd->src_y;
7710     int gd_x2 = gd->src_x + gd->active_xoffset;
7711     int gd_y2 = gd->src_y + gd->active_yoffset;
7712     int selectbox_button_xsize = gd2->width;
7713     struct GadgetInfo *gi;
7714     char infotext[MAX_OUTPUT_LINESIZE + 1];
7715     int id = selectbox_info[i].gadget_id;
7716     int type_id = selectbox_info[i].gadget_type_id;
7717     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
7718     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
7719     unsigned int event_mask =
7720       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
7721
7722     if (type_id != i)
7723       Fail("'selectbox_info' structure corrupted at index %d -- please fix", i);
7724
7725     if (selectbox_info[i].size == -1)   // dynamically determine size
7726     {
7727       // (we cannot use -1 for uninitialized values if we directly compare
7728       // with results from strlen(), because the '<' and '>' operation will
7729       // implicitely cast -1 to an unsigned integer value!)
7730       selectbox_info[i].size = 0;
7731
7732       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
7733         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
7734           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
7735
7736       selectbox_info[i].size++;         // add one character empty space
7737     }
7738
7739     // determine horizontal position to the right of specified gadget
7740     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
7741       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
7742            ED_GADGET_TEXT_DISTANCE);
7743
7744     // determine horizontal offset for leading text
7745     if (selectbox_info[i].text_left != NULL)
7746       x += getTextWidthForGadget(selectbox_info[i].text_left);
7747
7748     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
7749     infotext[max_infotext_len] = '\0';
7750
7751     gi = CreateGadget(GDI_CUSTOM_ID, id,
7752                       GDI_CUSTOM_TYPE_ID, type_id,
7753                       GDI_INFO_TEXT, infotext,
7754                       GDI_X, x,
7755                       GDI_Y, y,
7756                       GDI_TYPE, GD_TYPE_SELECTBOX,
7757                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
7758                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
7759                       GDI_TEXT_SIZE, selectbox_info[i].size,
7760                       GDI_TEXT_FONT, FONT_INPUT_1,
7761                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
7762                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
7763                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7764                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7765                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7766                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
7767                       GDI_DESIGN_WIDTH, gd->width,
7768                       GDI_EVENT_MASK, event_mask,
7769                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7770                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
7771                       GDI_END);
7772
7773     if (gi == NULL)
7774       Fail("cannot create gadget");
7775
7776     level_editor_gadget[id] = gi;
7777     right_gadget_border[id] =
7778       getRightGadgetBorder(gi, selectbox_info[i].text_right);
7779   }
7780 }
7781
7782 static void CreateTextbuttonGadgets(void)
7783 {
7784   int max_infotext_len = getMaxInfoTextLength();
7785   int i;
7786
7787   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
7788   {
7789     int id = textbutton_info[i].gadget_id;
7790     int type_id = textbutton_info[i].gadget_type_id;
7791     int is_tab_button =
7792       ((id >= GADGET_ID_LEVELCONFIG_LEVEL && id <= GADGET_ID_LEVELCONFIG_ENGINE) ||
7793        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
7794     int graphic =
7795       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
7796     int gadget_distance =
7797       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
7798     struct GraphicInfo *gd = &graphic_info[graphic];
7799     int gd_x1 = gd->src_x;
7800     int gd_y1 = gd->src_y;
7801     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7802     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7803     int gd_x1a = gd->src_x + gd->active_xoffset;
7804     int gd_y1a = gd->src_y + gd->active_yoffset;
7805     int border_xsize = gd->border_size + gd->draw_xoffset;
7806     int border_ysize = gd->border_size;
7807     struct GadgetInfo *gi;
7808     unsigned int event_mask = GD_EVENT_RELEASED;
7809     char infotext[MAX_OUTPUT_LINESIZE + 1];
7810     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
7811     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
7812
7813     if (type_id != i)
7814       Fail("'textbutton_info' structure corrupted at index %d -- please fix", i);
7815
7816     if (textbutton_info[i].size == -1)  // dynamically determine size
7817       textbutton_info[i].size = strlen(textbutton_info[i].text);
7818
7819     sprintf(infotext, "%s", textbutton_info[i].infotext);
7820     infotext[max_infotext_len] = '\0';
7821
7822     // determine horizontal position to the right of specified gadget
7823     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7824     {
7825       int gadget_id_align = textbutton_info[i].gadget_id_align;
7826
7827       x = right_gadget_border[gadget_id_align] + gadget_distance;
7828
7829       if (textbutton_info[i].y == -1)
7830         y = level_editor_gadget[gadget_id_align]->y;
7831     }
7832
7833     // determine horizontal offset for leading text
7834     if (textbutton_info[i].text_left != NULL)
7835       x += getTextWidthForGadget(textbutton_info[i].text_left);
7836
7837     gi = CreateGadget(GDI_CUSTOM_ID, id,
7838                       GDI_CUSTOM_TYPE_ID, type_id,
7839                       GDI_IMAGE_ID, graphic,
7840                       GDI_INFO_TEXT, infotext,
7841                       GDI_X, x,
7842                       GDI_Y, y,
7843                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
7844                       GDI_TEXT_VALUE, textbutton_info[i].text,
7845                       GDI_TEXT_SIZE, textbutton_info[i].size,
7846                       GDI_TEXT_FONT, FONT_INPUT_2,
7847                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
7848                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7849                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7850                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7851                       GDI_BORDER_SIZE, border_xsize, border_ysize,
7852                       GDI_DESIGN_WIDTH, gd->width,
7853                       GDI_DECORATION_SHIFTING, 1, 1,
7854                       GDI_EVENT_MASK, event_mask,
7855                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7856                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
7857                       GDI_END);
7858
7859     if (gi == NULL)
7860       Fail("cannot create gadget");
7861
7862     level_editor_gadget[id] = gi;
7863     right_gadget_border[id] =
7864       getRightGadgetBorder(gi, textbutton_info[i].text_right);
7865   }
7866 }
7867
7868 static void CreateGraphicbuttonGadgets(void)
7869 {
7870   struct GadgetInfo *gi;
7871   int i;
7872
7873   // create buttons for scrolling of drawing area and element list
7874   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
7875   {
7876     int id = graphicbutton_info[i].gadget_id;
7877     int type_id = graphicbutton_info[i].gadget_type_id;
7878     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
7879     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
7880     int graphic = graphicbutton_info[i].graphic;
7881     struct GraphicInfo *gd = &graphic_info[graphic];
7882     int gd_x1 = gd->src_x;
7883     int gd_y1 = gd->src_y;
7884     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7885     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7886     unsigned int event_mask = GD_EVENT_RELEASED;
7887
7888     if (type_id != i)
7889       Fail("'graphicbutton_info' structure corrupted at index %d -- please fix", i);
7890
7891     // determine horizontal position to the right of specified gadget
7892     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7893       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
7894            ED_GADGET_TEXT_DISTANCE);
7895
7896     // determine horizontal offset for leading text
7897     if (graphicbutton_info[i].text_left != NULL)
7898       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
7899
7900     gi = CreateGadget(GDI_CUSTOM_ID, id,
7901                       GDI_CUSTOM_TYPE_ID, type_id,
7902                       GDI_IMAGE_ID, graphic,
7903                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
7904                       GDI_X, x,
7905                       GDI_Y, y,
7906                       GDI_WIDTH, gd->width,
7907                       GDI_HEIGHT, gd->height,
7908                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7909                       GDI_STATE, GD_BUTTON_UNPRESSED,
7910                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7911                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7912                       GDI_EVENT_MASK, event_mask,
7913                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7914                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
7915                       GDI_END);
7916
7917     if (gi == NULL)
7918       Fail("cannot create gadget");
7919
7920     level_editor_gadget[id] = gi;
7921     right_gadget_border[id] =
7922       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
7923   }
7924 }
7925
7926 static void CreateScrollbarGadgets(void)
7927 {
7928   int i;
7929
7930   // these values are not constant, but can change at runtime
7931   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
7932     SX + ED_SCROLL_HORIZONTAL_XPOS;
7933   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
7934     SY + ED_SCROLL_HORIZONTAL_YPOS;
7935   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
7936     ED_SCROLL_HORIZONTAL_XSIZE;
7937   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
7938     ED_SCROLL_HORIZONTAL_YSIZE;
7939   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
7940   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
7941   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
7942   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
7943
7944   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
7945     SX + ED_SCROLL_VERTICAL_XPOS;
7946   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
7947     SY + ED_SCROLL_VERTICAL_YPOS;
7948   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
7949     ED_SCROLL_VERTICAL_XSIZE;
7950   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
7951     ED_SCROLL_VERTICAL_YSIZE;
7952   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
7953   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
7954   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
7955   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
7956
7957   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
7958     PX + ED_SCROLL2_VERTICAL_XPOS;
7959   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
7960     PY + ED_SCROLL2_VERTICAL_YPOS;
7961   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
7962     ED_SCROLL2_VERTICAL_XSIZE;
7963   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
7964     ED_SCROLL2_VERTICAL_YSIZE;
7965   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
7966   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
7967   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
7968   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
7969
7970   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
7971   {
7972     int id = scrollbar_info[i].gadget_id;
7973     int type_id = scrollbar_info[i].gadget_type_id;
7974     int graphic = scrollbar_info[i].graphic;
7975     struct GraphicInfo *gd = &graphic_info[graphic];
7976     int gd_x1 = gd->src_x;
7977     int gd_y1 = gd->src_y;
7978     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7979     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7980     struct GadgetInfo *gi;
7981     int items_max, items_visible, item_position;
7982     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
7983
7984     if (type_id != i)
7985       Fail("'scrollbar_info' structure corrupted at index %d -- please fix", i);
7986
7987     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
7988     {
7989       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
7990       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
7991       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
7992     }
7993     else        // drawing area scrollbars
7994     {
7995       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
7996       {
7997         items_max = MAX(lev_fieldx + 2, ed_fieldx);
7998         items_visible = ed_fieldx;
7999         item_position = 0;
8000       }
8001       else
8002       {
8003         items_max = MAX(lev_fieldy + 2, ed_fieldy);
8004         items_visible = ed_fieldy;
8005         item_position = 0;
8006       }
8007     }
8008
8009     gi = CreateGadget(GDI_CUSTOM_ID, id,
8010                       GDI_CUSTOM_TYPE_ID, type_id,
8011                       GDI_IMAGE_ID, graphic,
8012                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
8013                       GDI_X, scrollbar_pos[i].x,
8014                       GDI_Y, scrollbar_pos[i].y,
8015                       GDI_WIDTH, scrollbar_pos[i].width,
8016                       GDI_HEIGHT, scrollbar_pos[i].height,
8017                       GDI_TYPE, scrollbar_info[i].type,
8018                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
8019                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8020                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
8021                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
8022                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
8023                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
8024                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
8025                       GDI_STATE, GD_BUTTON_UNPRESSED,
8026                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8027                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8028                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
8029                       GDI_EVENT_MASK, event_mask,
8030                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8031                       GDI_CALLBACK_ACTION, HandleControlButtons,
8032                       GDI_END);
8033
8034     if (gi == NULL)
8035       Fail("cannot create gadget");
8036
8037     level_editor_gadget[id] = gi;
8038   }
8039 }
8040
8041 static void CreateCheckbuttonGadgets(void)
8042 {
8043   struct GadgetInfo *gi;
8044   int i;
8045
8046   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
8047   {
8048     int id = checkbutton_info[i].gadget_id;
8049     int type_id = checkbutton_info[i].gadget_type_id;
8050     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
8051                    IMG_EDITOR_CHECKBOX);
8052     struct GraphicInfo *gd = &graphic_info[graphic];
8053     int gd_x1 = gd->src_x;
8054     int gd_y1 = gd->src_y;
8055     int gd_x2 = gd->src_x + gd->pressed_xoffset;
8056     int gd_y2 = gd->src_y + gd->pressed_yoffset;
8057     int gd_x1a = gd->src_x + gd->active_xoffset;
8058     int gd_y1a = gd->src_y + gd->active_yoffset;
8059     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8060     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8061     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
8062     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
8063     unsigned int event_mask = GD_EVENT_PRESSED;
8064
8065     if (type_id != i)
8066       Fail("'checkbutton_info' structure corrupted at index %d -- please fix", i);
8067
8068     // determine horizontal position to the right of specified gadget
8069     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
8070       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
8071            ED_GADGET_TEXT_DISTANCE);
8072
8073     // determine horizontal offset for leading text
8074     if (checkbutton_info[i].text_left != NULL)
8075       x += getTextWidthForGadget(checkbutton_info[i].text_left);
8076
8077     gi = CreateGadget(GDI_CUSTOM_ID, id,
8078                       GDI_CUSTOM_TYPE_ID, type_id,
8079                       GDI_IMAGE_ID, graphic,
8080                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
8081                       GDI_X, x,
8082                       GDI_Y, y,
8083                       GDI_WIDTH, gd->width,
8084                       GDI_HEIGHT, gd->height,
8085                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
8086                       GDI_CHECKED, *checkbutton_info[i].value,
8087                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8088                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8089                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8090                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8091                       GDI_EVENT_MASK, event_mask,
8092                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8093                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
8094                       GDI_END);
8095
8096     if (gi == NULL)
8097       Fail("cannot create gadget");
8098
8099     level_editor_gadget[id] = gi;
8100     right_gadget_border[id] =
8101       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
8102   }
8103 }
8104
8105 static void CreateRadiobuttonGadgets(void)
8106 {
8107   int graphic = IMG_EDITOR_RADIOBUTTON;
8108   struct GraphicInfo *gd = &graphic_info[graphic];
8109   int gd_x1 = gd->src_x;
8110   int gd_y1 = gd->src_y;
8111   int gd_x2 = gd->src_x + gd->pressed_xoffset;
8112   int gd_y2 = gd->src_y + gd->pressed_yoffset;
8113   int gd_x1a = gd->src_x + gd->active_xoffset;
8114   int gd_y1a = gd->src_y + gd->active_yoffset;
8115   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
8116   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
8117   struct GadgetInfo *gi;
8118   int i;
8119
8120   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
8121   {
8122     int id = radiobutton_info[i].gadget_id;
8123     int type_id = radiobutton_info[i].gadget_type_id;
8124     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
8125     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
8126     unsigned int event_mask = GD_EVENT_PRESSED;
8127
8128     if (type_id != i)
8129       Fail("'radiobutton_info' structure corrupted at index %d -- please fix", i);
8130
8131     int checked =
8132       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
8133
8134     // determine horizontal position to the right of specified gadget
8135     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
8136       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
8137            ED_GADGET_TEXT_DISTANCE);
8138
8139     // determine horizontal offset for leading text
8140     if (radiobutton_info[i].text_left != NULL)
8141       x += getTextWidthForGadget(radiobutton_info[i].text_left);
8142
8143     gi = CreateGadget(GDI_CUSTOM_ID, id,
8144                       GDI_CUSTOM_TYPE_ID, type_id,
8145                       GDI_IMAGE_ID, graphic,
8146                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
8147                       GDI_X, x,
8148                       GDI_Y, y,
8149                       GDI_WIDTH, gd->width,
8150                       GDI_HEIGHT, gd->height,
8151                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
8152                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
8153                       GDI_CHECKED, checked,
8154                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
8155                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
8156                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
8157                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
8158                       GDI_EVENT_MASK, event_mask,
8159                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
8160                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
8161                       GDI_END);
8162
8163     if (gi == NULL)
8164       Fail("cannot create gadget");
8165
8166     level_editor_gadget[id] = gi;
8167     right_gadget_border[id] =
8168       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
8169   }
8170 }
8171
8172 void CreateLevelEditorGadgets(void)
8173 {
8174   // force EDITOR font inside level editor
8175   SetFontStatus(GAME_MODE_EDITOR);
8176
8177   // these values are not constant, but can change at runtime
8178   ed_fieldx = MAX_ED_FIELDX - 1;
8179   ed_fieldy = MAX_ED_FIELDY - 1;
8180
8181   num_editor_gadgets = NUM_EDITOR_GADGETS;
8182
8183   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
8184
8185   level_editor_gadget =
8186     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
8187   right_gadget_border =
8188     checked_calloc(num_editor_gadgets * sizeof(int));
8189
8190   // set number of empty (padding) element buttons to maximum number of buttons
8191   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
8192
8193   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
8194   editor_el_empty_ptr = editor_el_empty;
8195
8196   use_permanent_palette = !editor.palette.show_as_separate_screen;
8197
8198   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
8199
8200   ReinitializeElementList();
8201
8202   CreateControlButtons();
8203   CreateScrollbarGadgets();
8204
8205   // order of function calls is important because of cross-references
8206   CreateCheckbuttonGadgets();
8207   CreateCounterButtons();
8208   CreateRadiobuttonGadgets();
8209   CreateTextInputGadgets();
8210   CreateTextAreaGadgets();
8211   CreateSelectboxGadgets();
8212   CreateGraphicbuttonGadgets();
8213   CreateTextbuttonGadgets();
8214   CreateDrawingAreas();
8215
8216   ResetFontStatus();
8217 }
8218
8219 void FreeLevelEditorGadgets(void)
8220 {
8221   int i;
8222
8223   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
8224
8225   for (i = 0; i < num_editor_gadgets; i++)
8226   {
8227     FreeGadget(level_editor_gadget[i]);
8228
8229     level_editor_gadget[i] = NULL;
8230   }
8231
8232   checked_free(level_editor_gadget);
8233   checked_free(right_gadget_border);
8234
8235   checked_free(editor_el_empty);
8236 }
8237
8238 static void MapCounterButtons(int id)
8239 {
8240   int font_nr = FONT_TEXT_1;
8241   int font_height = getFontHeight(font_nr);
8242   int gadget_id_down = counterbutton_info[id].gadget_id_down;
8243   int gadget_id_text = counterbutton_info[id].gadget_id_text;
8244   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
8245   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
8246   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
8247   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
8248   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
8249   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8250   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8251   int yoffset = (gi_down->height - font_height) / 2;
8252   int x_left = gi_down->x - xoffset_left;
8253   int x_right;  // set after gadget position was modified
8254   int y_above = gi_down->y - yoffset_above;
8255   int x = gi_down->x;
8256   int y;        // set after gadget position was modified
8257
8258   // counter limits must be changed first to prevent value truncation
8259   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
8260                             counterbutton_info[id].max_value);
8261
8262   // right text position might have changed after setting position above
8263   x_right = gi_up->x + gi_up->width + xoffset_right;
8264
8265   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
8266
8267   // set position for counter gadgets with dynamically determined position
8268   if (id != ED_COUNTER_ID_SELECT_LEVEL)
8269   {
8270     ModifyGadget(gi_down, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8271     ModifyGadget(gi_text, GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8272     ModifyGadget(gi_up,   GDI_Y, SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
8273   }
8274
8275   // vertical position might have changed after setting position above
8276   y = gi_up->y + yoffset;
8277
8278   if (counterbutton_info[id].text_above)
8279     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
8280
8281   if (counterbutton_info[id].text_left)
8282     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
8283
8284   if (counterbutton_info[id].text_right)
8285     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
8286
8287   MapGadget(gi_down);
8288   MapGadget(gi_text);
8289   MapGadget(gi_up);
8290 }
8291
8292 static void MapControlButtons(void)
8293 {
8294   int counter_id;
8295   int i;
8296
8297   // map toolbox buttons (excluding special CE toolbox buttons)
8298   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
8299     MapGadget(level_editor_gadget[i]);
8300
8301   // map toolbox buttons (element properties buttons)
8302   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
8303     MapGadget(level_editor_gadget[i]);
8304
8305   if (use_permanent_palette)
8306   {
8307     // map buttons to select elements
8308     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
8309       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
8310     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
8311     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
8312     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
8313   }
8314
8315   // map buttons to select level
8316   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
8317   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
8318   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
8319   MapCounterButtons(counter_id);
8320 }
8321
8322 static void MapDrawingArea(int id)
8323 {
8324   int font_nr = FONT_TEXT_1;
8325   int font_height = getFontHeight(font_nr);
8326   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
8327   int area_xsize = gi->drawing.area_xsize;
8328   int area_ysize = gi->drawing.area_ysize;
8329   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8330   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
8331   int x_left  = gi->x - xoffset_left - ED_DRAWINGAREA_BORDER_SIZE;
8332   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
8333   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
8334   int x_below = gi->x + (gi->width - xoffset_below) / 2;
8335   int y_side  = gi->y + (gi->height - font_height) / 2;
8336   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
8337   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
8338
8339   if (drawingarea_info[id].text_left)
8340     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
8341
8342   if (drawingarea_info[id].text_right)
8343     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
8344
8345   if (drawingarea_info[id].text_above)
8346     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
8347
8348   if (drawingarea_info[id].text_below)
8349     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
8350
8351   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
8352   {
8353     DrawElementBorder(gi->x, gi->y,
8354                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
8355                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
8356
8357     DrawDrawingArea(id);
8358   }
8359
8360   MapGadget(gi);
8361 }
8362
8363 static void MapTextInputGadget(int id)
8364 {
8365   int font_nr = FONT_TEXT_1;
8366   int font_height = getFontHeight(font_nr);
8367   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
8368   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8369   int x_above = ED_SETTINGS_X(textinput_info[id].x);
8370   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
8371
8372   if (textinput_info[id].text_above)
8373     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
8374
8375   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
8376
8377   MapGadget(gi);
8378 }
8379
8380 static void MapTextAreaGadget(int id)
8381 {
8382   int font_nr = FONT_TEXT_1;
8383   int font_height = getFontHeight(font_nr);
8384   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
8385   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8386   int x_above = ED_SETTINGS_X(textarea_info[id].x);
8387   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
8388   char *text_above = textarea_info[id].text_above;
8389
8390   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
8391     text_above = textarea_info[id].text_above_cropped;
8392
8393   if (text_above)
8394     DrawTextS(x_above, y_above, font_nr, text_above);
8395
8396   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
8397
8398   MapGadget(gi);
8399 }
8400
8401 static void MapSelectboxGadget(int id)
8402 {
8403   int font_nr = FONT_TEXT_1;
8404   int font_height = getFontHeight(font_nr);
8405   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
8406   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
8407   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8408   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8409   int yoffset = (gi->height - font_height) / 2;
8410   int x_left = gi->x - xoffset_left;
8411   int x_right = gi->x + gi->width + xoffset_right;
8412   int y_above = gi->y - yoffset_above;
8413   int x = gi->x;
8414   int y = gi->y + yoffset;
8415
8416   if (selectbox_info[id].text_above)
8417     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
8418
8419   if (selectbox_info[id].text_left)
8420     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
8421
8422   if (selectbox_info[id].text_right)
8423     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
8424
8425   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
8426
8427   MapGadget(gi);
8428 }
8429
8430 static void MapTextbuttonGadget(int id)
8431 {
8432   int font_nr = FONT_TEXT_1;
8433   int font_height = getFontHeight(font_nr);
8434   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
8435   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
8436   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8437   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8438   int yoffset = (gi->height - font_height) / 2;
8439   int x_left = gi->x - xoffset_left;
8440   int x_right = gi->x + gi->width + xoffset_right;
8441   int y_above = gi->y - yoffset_above;
8442   int x = gi->x;
8443   int y = gi->y + yoffset;
8444
8445   // only show button to delete change pages when more than minimum pages
8446   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
8447       custom_element.num_change_pages == MIN_CHANGE_PAGES)
8448     return;
8449
8450   if (textbutton_info[id].text_above)
8451     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
8452
8453   if (textbutton_info[id].text_left)
8454     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
8455
8456   if (textbutton_info[id].text_right)
8457     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
8458
8459   MapGadget(gi);
8460 }
8461
8462 static void MapGraphicbuttonGadget(int id)
8463 {
8464   int font_nr = FONT_TEXT_1;
8465   int font_height = getFontHeight(font_nr);
8466   struct GadgetInfo *gi = level_editor_gadget[graphicbutton_info[id].gadget_id];
8467   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
8468   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8469   int yoffset = (gi->height - font_height) / 2;
8470   int x_left = gi->x - xoffset_left;
8471   int x_right = gi->x + gi->width + xoffset_right;
8472   int y = gi->y + yoffset;
8473
8474   if (graphicbutton_info[id].text_left)
8475     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
8476
8477   if (graphicbutton_info[id].text_right)
8478     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
8479
8480   MapGadget(gi);
8481 }
8482
8483 static void MapRadiobuttonGadget(int id)
8484 {
8485   int font_nr = FONT_TEXT_1;
8486   int font_height = getFontHeight(font_nr);
8487   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
8488   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8489   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8490   int yoffset = (gi->height - font_height) / 2;
8491   int x_left = gi->x - xoffset_left;
8492   int x_right = gi->x + gi->width + xoffset_right;
8493   int y = gi->y + yoffset;
8494   boolean checked =
8495     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
8496
8497   if (radiobutton_info[id].text_left)
8498     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
8499
8500   if (radiobutton_info[id].text_right)
8501     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
8502
8503   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
8504
8505   MapGadget(gi);
8506 }
8507
8508 static void MapCheckbuttonGadget(int id)
8509 {
8510   int font_nr = FONT_TEXT_1;
8511   int font_height = getFontHeight(font_nr);
8512   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
8513   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
8514   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
8515   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
8516   int yoffset = (gi->height - font_height) / 2;
8517   int y_above = gi->y - yoffset_above;
8518   int x = gi->x;
8519   int x_left, x_right, y;       // set after gadget position was modified
8520
8521   // set position for gadgets with dynamically determined position
8522   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
8523     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x), GDI_END);
8524   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
8525
8526   x_left = gi->x - xoffset_left;
8527   x_right = gi->x + gi->width + xoffset_right;
8528   y = gi->y + yoffset;
8529
8530   if (checkbutton_info[id].text_above)
8531     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
8532
8533   if (checkbutton_info[id].text_left)
8534     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
8535
8536   if (checkbutton_info[id].text_right)
8537     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
8538
8539   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
8540
8541   MapGadget(gi);
8542 }
8543
8544 static void MapMainDrawingArea(void)
8545 {
8546   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
8547   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
8548   int i;
8549
8550   if (suppressBorderElement())
8551   {
8552     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
8553     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
8554   }
8555
8556   for (i = ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
8557   {
8558     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
8559           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
8560          no_horizontal_scrollbar) ||
8561         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
8562           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
8563          no_vertical_scrollbar))
8564       continue;
8565
8566     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
8567   }
8568
8569   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
8570   {
8571     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
8572         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
8573       continue;
8574
8575     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
8576   }
8577
8578   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
8579 }
8580
8581 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
8582 {
8583   int i;
8584
8585   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
8586   {
8587     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
8588         i == GADGET_ID_CUSTOM_COPY_TO ||
8589         i == GADGET_ID_CUSTOM_EXCHANGE ||
8590         i == GADGET_ID_CUSTOM_COPY ||
8591         i == GADGET_ID_CUSTOM_PASTE)
8592     {
8593       if (map)
8594         MapGadget(level_editor_gadget[i]);
8595       else
8596         UnmapGadget(level_editor_gadget[i]);
8597     }
8598   }
8599 }
8600
8601 static void MapLevelEditorToolboxCustomGadgets(void)
8602 {
8603   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
8604 }
8605
8606 static void MapLevelEditorToolboxCustomGadgetsIfNeeded(void)
8607 {
8608   if (IS_CUSTOM_ELEMENT(properties_element) ||
8609       IS_GROUP_ELEMENT(properties_element) ||
8610       IS_EMPTY_ELEMENT(properties_element))
8611     MapLevelEditorToolboxCustomGadgets();
8612 }
8613
8614 static void UnmapLevelEditorToolboxCustomGadgets(void)
8615 {
8616   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
8617 }
8618
8619 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
8620 {
8621   int i;
8622
8623   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
8624   {
8625     if (i != GADGET_ID_SINGLE_ITEMS &&
8626         i != GADGET_ID_PICK_ELEMENT)
8627     {
8628       struct GadgetInfo *gi = level_editor_gadget[i];
8629
8630       if (map)
8631       {
8632         MapGadget(gi);
8633       }
8634       else
8635       {
8636         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
8637         struct GraphicInfo *gd = &graphic_info[graphic];
8638
8639         UnmapGadget(gi);
8640
8641         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
8642                    gi->width, gi->height, gi->x, gi->y);
8643
8644         redraw_mask |= REDRAW_DOOR_3;
8645       }
8646     }
8647   }
8648 }
8649
8650 static void MapLevelEditorToolboxDrawingGadgets(void)
8651 {
8652   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
8653 }
8654
8655 static void UnmapLevelEditorToolboxDrawingGadgets(void)
8656 {
8657   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
8658 }
8659
8660 static void UnmapDrawingArea(int id)
8661 {
8662   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
8663 }
8664
8665 static void UnmapLevelEditorFieldGadgets(void)
8666 {
8667   int i;
8668
8669   for (i = 0; i < num_editor_gadgets; i++)
8670     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
8671                           level_editor_gadget[i]->y))
8672       UnmapGadget(level_editor_gadget[i]);
8673 }
8674
8675 void UnmapLevelEditorGadgets(void)
8676 {
8677   int i;
8678
8679   for (i = 0; i < num_editor_gadgets; i++)
8680     UnmapGadget(level_editor_gadget[i]);
8681 }
8682
8683 static void ResetUndoBuffer(void)
8684 {
8685   undo_buffer_position = -1;
8686   undo_buffer_steps = -1;
8687   redo_buffer_steps = 0;
8688
8689   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
8690
8691   level.changed = FALSE;
8692 }
8693
8694 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
8695 {
8696   if (remap_toolbox_gadgets)
8697   {
8698     ModifyEditorElementList();
8699     RedrawDrawingElements();
8700   }
8701
8702   if (edit_mode == ED_MODE_LEVELCONFIG)
8703     DrawLevelConfigWindow();
8704   else if (edit_mode == ED_MODE_PROPERTIES)
8705     DrawPropertiesWindow();
8706   else if (edit_mode == ED_MODE_PALETTE)
8707     DrawPaletteWindow();
8708   else  // edit_mode == ED_MODE_DRAWING
8709     DrawDrawingWindowExt(remap_toolbox_gadgets);
8710 }
8711
8712 static void DrawEditModeWindow(void)
8713 {
8714   DrawEditModeWindowExt(TRUE);
8715 }
8716
8717 static void DrawEditModeWindow_PlayfieldOnly(void)
8718 {
8719   DrawEditModeWindowExt(FALSE);
8720 }
8721
8722 static void ChangeEditModeWindow(int new_edit_mode)
8723 {
8724   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
8725
8726   DrawEditModeWindow();
8727 }
8728
8729 static boolean LevelChanged(void)
8730 {
8731   boolean field_changed = FALSE;
8732   int x, y;
8733
8734   for (y = 0; y < lev_fieldy; y++)
8735     for (x = 0; x < lev_fieldx; x++)
8736       if (Tile[x][y] != level.field[x][y])
8737         field_changed = TRUE;
8738
8739   return (level.changed || field_changed);
8740 }
8741
8742 static boolean PrepareSavingIntoPersonalLevelSet(void)
8743 {
8744   static LevelDirTree *last_copied_leveldir = NULL;
8745   static LevelDirTree *last_written_leveldir = NULL;
8746   static int last_copied_level_nr = -1;
8747   static int last_written_level_nr = -1;
8748   LevelDirTree *leveldir_former = leveldir_current;
8749   int level_nr_former = level_nr;
8750   int new_level_nr;
8751
8752   // remember last mod/save so that for current session, we write
8753   // back to the same personal copy, asking only about overwrite.
8754   if (leveldir_current == last_copied_leveldir &&
8755       level_nr == last_copied_level_nr)
8756   {
8757     // "cd" to personal level set dir (as used when writing last copy)
8758     leveldir_current = last_written_leveldir;
8759     level_nr = last_written_level_nr;
8760
8761     return TRUE;
8762   }
8763
8764   if (!Request("This level is read-only! "
8765                "Save into personal level set?", REQ_ASK))
8766     return FALSE;
8767
8768   // "cd" to personal level set dir (for writing copy the first time)
8769   leveldir_current =
8770     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
8771
8772   // this may happen if "setup.internal.create_user_levelset" is FALSE
8773   // or if file "levelinfo.conf" is missing in personal user level set
8774   if (leveldir_current == NULL)
8775   {
8776     Request("Cannot find personal level set?!", REQ_CONFIRM);
8777
8778     leveldir_current = leveldir_former;
8779
8780     return FALSE;
8781   }
8782
8783   // find unused level number
8784   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
8785   {
8786     static char *level_filename = NULL;
8787
8788     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
8789
8790     if (!fileExists(level_filename))
8791       break;
8792   }
8793
8794   last_copied_leveldir = leveldir_former;
8795   last_copied_level_nr = level_nr_former;
8796
8797   last_written_leveldir = leveldir_current;
8798   last_written_level_nr = level_nr = new_level_nr;
8799
8800   return TRUE;
8801 }
8802
8803 static void ModifyLevelConfigForSavingIntoPersonalLevelSet(char *former_name)
8804 {
8805   static char *filename_levelinfo = NULL, *mod_name = NULL;
8806   FILE *file;
8807
8808   // annotate this copy-and-mod in personal levelinfo.conf
8809   setString(&filename_levelinfo,
8810             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
8811
8812   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
8813   {
8814     fprintf(file, "\n");
8815     fprintf(file, "# level %d was modified from:\n", level_nr);
8816     fprintf(file, "# - previous level set name:    %s\n",
8817             former_name);
8818     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
8819             level.file_info.nr, level.name);
8820     fprintf(file, "# - previous author:            %s\n",
8821             level.author);
8822     fprintf(file, "# - previous save date:         ");
8823
8824     if (level.creation_date.src == DATE_SRC_LEVELFILE)
8825     {
8826       fprintf(file, "%04d-%02d-%02d\n",
8827               level.creation_date.year,
8828               level.creation_date.month,
8829               level.creation_date.day);
8830     }
8831     else
8832     {
8833       fprintf(file, "not recorded\n");
8834     }
8835
8836     fclose(file);
8837   }
8838
8839   if (level_nr > leveldir_current->last_level)
8840     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
8841
8842   // else: allow the save even if annotation failed
8843
8844   // now... spray graffiti on the old level vital statistics
8845   // user can change these; just trying to set a good baseline
8846
8847   // don't truncate names for fear of making offensive or silly:
8848   // long-named original author only recorded in levelinfo.conf.
8849   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
8850   if (!strEqual(level.author, leveldir_current->author))
8851   {
8852     setString(&mod_name, getStringCat3(leveldir_current->author,
8853                                        " after ", level.author));
8854
8855     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8856       setString(&mod_name,
8857                 getStringCat2(leveldir_current->author, " (ed.)"));
8858
8859     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8860       setString(&mod_name, leveldir_current->author);
8861
8862     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
8863
8864     // less worried about truncation here
8865     setString(&mod_name, getStringCat2("Mod: ", level.name));
8866     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
8867   }
8868 }
8869
8870 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
8871                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
8872 {
8873   int x, y;
8874
8875   for (x = 0; x < lev_fieldx; x++)
8876     for (y = 0; y < lev_fieldy; y++)
8877       dst[x][y] = src[x][y];
8878 }
8879
8880 static int setSelectboxValue(int selectbox_id, int new_value)
8881 {
8882   int new_index_value = 0;
8883   int i;
8884
8885   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
8886     if (selectbox_info[selectbox_id].options[i].value == new_value)
8887       new_index_value = i;
8888
8889   *selectbox_info[selectbox_id].value =
8890     selectbox_info[selectbox_id].options[new_index_value].value;
8891
8892   return new_index_value;
8893 }
8894
8895 static void setSelectboxSpecialActionVariablesIfNeeded(void)
8896 {
8897   int i;
8898
8899   // change action mode and arg variables according to action type variable
8900   for (i = 0; action_arg_options[i].value != -1; i++)
8901   {
8902     if (action_arg_options[i].value == custom_element_change.action_type)
8903     {
8904       int mode = action_arg_options[i].mode;
8905
8906       // only change if corresponding selectbox has changed
8907       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
8908           action_arg_modes[mode])
8909         custom_element_change.action_mode = -1;
8910
8911       // only change if corresponding selectbox has changed
8912       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
8913           action_arg_options[i].options)
8914         custom_element_change.action_arg = -1;
8915
8916       break;
8917     }
8918   }
8919 }
8920
8921 static void setSelectboxSpecialActionOptions(void)
8922 {
8923   int i;
8924
8925   // change action mode and arg selectbox according to action type selectbox
8926   for (i = 0; action_arg_options[i].value != -1; i++)
8927   {
8928     if (action_arg_options[i].value == custom_element_change.action_type)
8929     {
8930       int mode = action_arg_options[i].mode;
8931
8932       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
8933                                    action_arg_modes[mode]);
8934       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
8935                                  custom_element_change.action_mode);
8936
8937       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
8938                                    action_arg_options[i].options);
8939       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
8940                                  custom_element_change.action_arg);
8941       break;
8942     }
8943   }
8944 }
8945
8946 static void copy_custom_element_settings(int element_from, int element_to)
8947 {
8948   struct ElementInfo *ei_from = &element_info[element_from];
8949   struct ElementInfo *ei_to = &element_info[element_to];
8950
8951   copyElementInfo(ei_from, ei_to);
8952 }
8953
8954 static void replace_custom_element_in_settings(int element_from,
8955                                                int element_to)
8956 {
8957   int i, j, x, y;
8958
8959   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8960   {
8961     struct ElementInfo *ei = &element_info[i];
8962
8963     for (y = 0; y < 3; y++)
8964       for (x = 0; x < 3; x++)
8965         if (ei->content.e[x][y] == element_from)
8966           ei->content.e[x][y] = element_to;
8967
8968     for (j = 0; j < ei->num_change_pages; j++)
8969     {
8970       struct ElementChangeInfo *change = &ei->change_page[j];
8971
8972       if (change->target_element == element_from)
8973         change->target_element = element_to;
8974
8975       if (change->initial_trigger_element == element_from)
8976         change->initial_trigger_element = element_to;
8977
8978       if (change->action_element == element_from)
8979         change->action_element = element_to;
8980
8981       for (y = 0; y < 3; y++)
8982         for (x = 0; x < 3; x++)
8983           if (change->target_content.e[x][y] == element_from)
8984             change->target_content.e[x][y] = element_to;
8985     }
8986
8987     if (ei->group != NULL)                              // group or internal
8988       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
8989         if (ei->group->element[j] == element_from)
8990           ei->group->element[j] = element_to;
8991   }
8992 }
8993
8994 static void replace_custom_element_in_playfield(int element_from,
8995                                                 int element_to)
8996 {
8997   int x, y;
8998
8999   for (x = 0; x < lev_fieldx; x++)
9000     for (y = 0; y < lev_fieldy; y++)
9001       if (Tile[x][y] == element_from)
9002         Tile[x][y] = element_to;
9003 }
9004
9005 static boolean CopyCustomElement(int element_old, int element_new,
9006                                  int copy_mode)
9007 {
9008   int copy_mode_orig = copy_mode;
9009
9010   if (copy_mode == GADGET_ID_CUSTOM_COPY)
9011   {
9012     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
9013                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9014     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9015   }
9016   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
9017   {
9018     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
9019                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
9020     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
9021
9022     level.changed = TRUE;
9023   }
9024   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
9025   {
9026     Request("Please choose custom element!", REQ_CONFIRM);
9027
9028     return FALSE;
9029   }
9030   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
9031   {
9032     Request("Please choose group element!", REQ_CONFIRM);
9033
9034     return FALSE;
9035   }
9036   else if (IS_EMPTY_ELEMENT(element_old) && !IS_EMPTY_ELEMENT(element_new))
9037   {
9038     Request("Please choose empty element!", REQ_CONFIRM);
9039
9040     return FALSE;
9041   }
9042   else
9043   {
9044     level.changed = TRUE;
9045   }
9046
9047   // when modifying custom/group element, ask for copying level template
9048   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
9049   {
9050     if (!AskToCopyAndModifyLevelTemplate())
9051       return FALSE;
9052   }
9053
9054   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
9055   {
9056     copy_custom_element_settings(element_new, element_old);
9057   }
9058   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
9059   {
9060     copy_custom_element_settings(element_old, element_new);
9061   }
9062   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
9063   {
9064     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
9065     copy_custom_element_settings(element_new, element_old);
9066     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
9067
9068     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
9069     replace_custom_element_in_settings(element_new, element_old);
9070     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
9071
9072     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
9073     replace_custom_element_in_playfield(element_new, element_old);
9074     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
9075   }
9076
9077   UpdateCustomElementGraphicGadgets();
9078   DrawPropertiesWindow();
9079
9080   return TRUE;
9081 }
9082
9083 static void CopyCustomElementPropertiesToEditor(int element)
9084 {
9085   int i;
9086   int current_change_page = element_info[element].current_change_page;
9087
9088   // dynamically (re)build selectbox for selecting change page
9089   for (i = 0; i < element_info[element].num_change_pages; i++)
9090   {
9091     sprintf(options_change_page_strings[i], "%d", i + 1);
9092
9093     options_change_page[i].value = i;
9094     options_change_page[i].text = options_change_page_strings[i];
9095   }
9096
9097   options_change_page[i].value = -1;
9098   options_change_page[i].text = NULL;
9099
9100   // needed here to initialize combined element properties
9101   InitElementPropertiesEngine(level.game_version);
9102
9103   element_info[element].change =
9104     &element_info[element].change_page[current_change_page];
9105
9106   custom_element = element_info[element];
9107   custom_element_change = *element_info[element].change;
9108
9109   // needed to initially set selectbox options for special action options
9110   setSelectboxSpecialActionOptions();
9111
9112   // needed to initially set selectbox value variables to reliable defaults
9113   for (i = 0; i < ED_NUM_SELECTBOX; i++)
9114     setSelectboxValue(i, *selectbox_info[i].value);
9115
9116   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9117     custom_element_properties[i] = HAS_PROPERTY(element, i);
9118
9119   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9120     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
9121
9122   // ---------- element settings: configure (custom elements) -----------------
9123
9124   // set accessible layer selectbox help value
9125   custom_element.access_type =
9126     (IS_WALKABLE(element) ? EP_WALKABLE :
9127      IS_PASSABLE(element) ? EP_PASSABLE :
9128      custom_element.access_type);
9129   custom_element.access_layer =
9130     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
9131      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
9132      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
9133      custom_element.access_layer);
9134   custom_element.access_protected =
9135     (IS_PROTECTED(element) ? 1 : 0);
9136   custom_element_properties[EP_ACCESSIBLE] =
9137     (IS_ACCESSIBLE_OVER(element) ||
9138      IS_ACCESSIBLE_INSIDE(element) ||
9139      IS_ACCESSIBLE_UNDER(element));
9140
9141   // set walk-to-object action selectbox help value
9142   custom_element.walk_to_action =
9143     (IS_DIGGABLE(element) ? EP_DIGGABLE :
9144      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
9145      IS_DROPPABLE(element) ? EP_DROPPABLE :
9146      IS_THROWABLE(element) ? EP_THROWABLE :
9147      IS_PUSHABLE(element) ? EP_PUSHABLE :
9148      custom_element.walk_to_action);
9149   custom_element_properties[EP_WALK_TO_OBJECT] =
9150     (IS_DIGGABLE(element) ||
9151      IS_COLLECTIBLE_ONLY(element) ||
9152      IS_DROPPABLE(element) ||
9153      IS_THROWABLE(element) ||
9154      IS_PUSHABLE(element));
9155
9156   // set smash targets selectbox help value
9157   custom_element.smash_targets =
9158     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
9159      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
9160      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
9161      custom_element.smash_targets);
9162   custom_element_properties[EP_CAN_SMASH] =
9163     (CAN_SMASH_EVERYTHING(element) ||
9164      CAN_SMASH_ENEMIES(element) ||
9165      CAN_SMASH_PLAYER(element));
9166
9167   // set deadliness selectbox help value
9168   custom_element.deadliness =
9169     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
9170      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
9171      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
9172      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
9173      custom_element.deadliness);
9174   custom_element_properties[EP_DEADLY] =
9175     (DONT_TOUCH(element) ||
9176      DONT_GET_HIT_BY(element) ||
9177      DONT_COLLIDE_WITH(element) ||
9178      DONT_RUN_INTO(element));
9179
9180   // ---------- element settings: advanced (custom elements) ------------------
9181
9182   // set "change by direct action" selectbox help value
9183   custom_element_change.direct_action =
9184     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
9185      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
9186      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
9187      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
9188      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
9189      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
9190      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
9191      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
9192      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
9193      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
9194      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
9195      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
9196      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
9197      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
9198      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
9199      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
9200      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
9201      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
9202      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
9203      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
9204      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
9205      custom_element_change.direct_action);
9206
9207   // set "change by other element action" selectbox help value
9208   custom_element_change.other_action =
9209     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
9210      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
9211      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
9212      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
9213      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
9214      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
9215      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
9216      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
9217      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
9218      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
9219      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
9220      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
9221      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
9222      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
9223      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
9224      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
9225      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
9226      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
9227      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
9228      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
9229      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
9230      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
9231      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
9232      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
9233      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
9234      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
9235      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
9236      custom_element_change.other_action);
9237 }
9238
9239 static void CopyGroupElementPropertiesToEditor(int element)
9240 {
9241   group_element_info = *element_info[element].group;
9242   custom_element = element_info[element];       // needed for description
9243 }
9244
9245 static void CopyEmptyElementPropertiesToEditor(int element)
9246 {
9247   custom_element = element_info[element];
9248 }
9249
9250 static void CopyClassicElementPropertiesToEditor(int element)
9251 {
9252   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9253     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
9254       getMoveIntoAcidProperty(&level, element);
9255
9256   if (MAYBE_DONT_COLLIDE_WITH(element))
9257     custom_element_properties[EP_DONT_COLLIDE_WITH] =
9258       getDontCollideWithProperty(&level, element);
9259 }
9260
9261 static void CopyElementPropertiesToEditor(int element)
9262 {
9263   if (IS_CUSTOM_ELEMENT(element))
9264     CopyCustomElementPropertiesToEditor(element);
9265   else if (IS_GROUP_ELEMENT(element))
9266     CopyGroupElementPropertiesToEditor(element);
9267   else if (IS_EMPTY_ELEMENT(element))
9268     CopyEmptyElementPropertiesToEditor(element);
9269   else
9270     CopyClassicElementPropertiesToEditor(element);
9271 }
9272
9273 static boolean AskToCopyAndModifyLevelTemplate(void)
9274 {
9275   if (Request("Copy and modify settings from level template?", REQ_ASK))
9276   {
9277     level.use_custom_template = FALSE;
9278
9279     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
9280                  GDI_CHECKED, FALSE, GDI_END);
9281     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
9282                  GDI_CHECKED, FALSE, GDI_END);
9283
9284     return TRUE;
9285   }
9286   else
9287   {
9288     LoadLevelTemplate(-1);      // this resets all element modifications ...
9289
9290     DrawEditModeWindow();       // ... and copies them to 'custom_element'
9291
9292     return FALSE;
9293   }
9294 }
9295
9296 static void CopyCustomElementPropertiesToGame(int element)
9297 {
9298   int i;
9299   int access_type_and_layer;
9300
9301   // mark that this custom element has been modified
9302   custom_element.modified_settings = TRUE;
9303   level.changed = TRUE;
9304
9305   if (level.use_custom_template)
9306     AskToCopyAndModifyLevelTemplate();
9307
9308   element_info[element] = custom_element;
9309   *element_info[element].change = custom_element_change;
9310
9311   // ---------- element settings: configure (custom elements) -----------------
9312
9313   // set accessible property from checkbox and selectbox
9314   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
9315   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
9316   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
9317   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
9318   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
9319   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
9320   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
9321                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
9322                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
9323   custom_element_properties[access_type_and_layer] =
9324     custom_element_properties[EP_ACCESSIBLE];
9325   custom_element_properties[EP_PROTECTED] =
9326     (custom_element.access_protected != 0 &&
9327      custom_element_properties[EP_ACCESSIBLE]);
9328
9329   // set walk-to-object property from checkbox and selectbox
9330   custom_element_properties[EP_DIGGABLE] = FALSE;
9331   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
9332   custom_element_properties[EP_DROPPABLE] = FALSE;
9333   custom_element_properties[EP_THROWABLE] = FALSE;
9334   custom_element_properties[EP_PUSHABLE] = FALSE;
9335   custom_element_properties[custom_element.walk_to_action] =
9336     custom_element_properties[EP_WALK_TO_OBJECT];
9337
9338   // set smash property from checkbox and selectbox
9339   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
9340   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
9341   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
9342   custom_element_properties[custom_element.smash_targets] =
9343     custom_element_properties[EP_CAN_SMASH];
9344
9345   // set deadliness property from checkbox and selectbox
9346   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
9347   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
9348   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
9349   custom_element_properties[EP_DONT_TOUCH] = FALSE;
9350   custom_element_properties[custom_element.deadliness] =
9351     custom_element_properties[EP_DEADLY];
9352
9353   // ---------- element settings: advanced (custom elements) ------------------
9354
9355   // set player change event from checkbox and selectbox
9356   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
9357   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
9358   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
9359   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
9360   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
9361   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
9362   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
9363   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
9364   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
9365   custom_element_change_events[CE_SWITCHED] = FALSE;
9366   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
9367   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
9368   custom_element_change_events[CE_BLOCKED] = FALSE;
9369   custom_element_change_events[CE_IMPACT] = FALSE;
9370   custom_element_change_events[CE_SMASHED] = FALSE;
9371   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
9372   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
9373   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
9374   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
9375   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
9376   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
9377   custom_element_change_events[custom_element_change.direct_action] =
9378     custom_element_change_events[CE_BY_DIRECT_ACTION];
9379
9380   // set other element action change event from checkbox and selectbox
9381   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
9382   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
9383   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
9384   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
9385   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
9386   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
9387   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
9388   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
9389   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
9390   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
9391   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
9392   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
9393   custom_element_change_events[CE_TOUCHING_X] = FALSE;
9394   custom_element_change_events[CE_HITTING_X] = FALSE;
9395   custom_element_change_events[CE_DIGGING_X] = FALSE;
9396   custom_element_change_events[CE_HIT_BY_X] = FALSE;
9397   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
9398   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
9399   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
9400   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
9401   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
9402   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
9403   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
9404   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
9405   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
9406   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
9407   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
9408   custom_element_change_events[custom_element_change.other_action] =
9409     custom_element_change_events[CE_BY_OTHER_ACTION];
9410
9411   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
9412     SET_PROPERTY(element, i, custom_element_properties[i]);
9413
9414   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
9415     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
9416
9417   // copy change events also to special level editor variable
9418   custom_element = element_info[element];
9419   custom_element_change = *element_info[element].change;
9420
9421   // needed here to restore runtime value "element_info[element].gfx_element"
9422   InitElementPropertiesGfxElement();
9423 }
9424
9425 static void CopyGroupElementPropertiesToGame(int element)
9426 {
9427   // mark that this group element has been modified
9428   custom_element.modified_settings = TRUE;
9429   level.changed = TRUE;
9430
9431   if (level.use_custom_template)
9432     AskToCopyAndModifyLevelTemplate();
9433
9434   element_info[element] = custom_element;
9435   *element_info[element].group = group_element_info;
9436
9437   // needed here to restore runtime value "element_info[element].gfx_element"
9438   InitElementPropertiesGfxElement();
9439 }
9440
9441 static void CopyEmptyElementPropertiesToGame(int element)
9442 {
9443   // mark that this empty element has been modified
9444   custom_element.modified_settings = TRUE;
9445   level.changed = TRUE;
9446
9447   if (level.use_custom_template)
9448     AskToCopyAndModifyLevelTemplate();
9449
9450   element_info[element] = custom_element;
9451
9452   // needed here to restore runtime value "element_info[element].gfx_element"
9453   InitElementPropertiesGfxElement();
9454 }
9455
9456 static void CopyClassicElementPropertiesToGame(int element)
9457 {
9458   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
9459     setMoveIntoAcidProperty(&level, element,
9460                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
9461
9462   if (MAYBE_DONT_COLLIDE_WITH(element))
9463     setDontCollideWithProperty(&level, element,
9464                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
9465 }
9466
9467 static void CopyElementPropertiesToGame(int element)
9468 {
9469   if (IS_CUSTOM_ELEMENT(element))
9470     CopyCustomElementPropertiesToGame(element);
9471   else if (IS_GROUP_ELEMENT(element))
9472     CopyGroupElementPropertiesToGame(element);
9473   else if (IS_EMPTY_ELEMENT(element))
9474     CopyEmptyElementPropertiesToGame(element);
9475   else
9476     CopyClassicElementPropertiesToGame(element);
9477 }
9478
9479 #if DEBUG
9480 static void CheckElementDescriptions(void)
9481 {
9482   int i;
9483
9484   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
9485     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
9486       Warn("no element description file for element '%s'", EL_NAME(i));
9487 }
9488 #endif
9489
9490 static int getMaxEdFieldX(boolean has_scrollbar)
9491 {
9492   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
9493   int sxsize = SXSIZE - scrollbar_width;
9494   int max_ed_fieldx = sxsize / ed_tilesize;
9495
9496   return max_ed_fieldx;
9497 }
9498
9499 static int getMaxEdFieldY(boolean has_scrollbar)
9500 {
9501   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
9502                          INFOTEXT_YSIZE_FULL : 0);
9503   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
9504   int sysize = SYSIZE - scrollbar_height - infotext_height;
9505   int max_ed_fieldy = sysize / ed_tilesize;
9506
9507   return max_ed_fieldy;
9508 }
9509
9510 static void InitZoomLevelSettings(int zoom_tilesize)
9511 {
9512   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
9513
9514   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
9515   {
9516     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
9517     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
9518
9519     // make sure that tile size is always a power of 2
9520     ed_tilesize = (1 << log_2(ed_tilesize));
9521
9522     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9523     {
9524       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
9525       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
9526     }
9527   }
9528
9529   last_game_engine_type = level.game_engine_type;
9530
9531   // limit zoom tilesize by upper and lower bound
9532   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
9533
9534   // store zoom tilesize in auto setup file only if it was manually changed
9535   if (zoom_tilesize != -1)
9536     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
9537
9538   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
9539   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
9540 }
9541
9542 static void InitDrawingElements(void)
9543 {
9544   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
9545
9546   if (level.game_engine_type == game_engine_type_last)
9547     return;
9548
9549   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
9550   {
9551     new_element1 = EL_BD_WALL;
9552     new_element2 = EL_EMPTY;
9553     new_element3 = EL_BD_SAND;
9554   }
9555   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
9556   {
9557     new_element1 = EL_SP_CHIP_SINGLE;
9558     new_element2 = EL_EMPTY;
9559     new_element3 = EL_SP_BASE;
9560   }
9561   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
9562   {
9563     new_element1 = EL_MM_MIRROR_START;
9564     new_element2 = EL_EMPTY;
9565     new_element3 = EL_MM_WOODEN_WALL;
9566   }
9567   else
9568   {
9569     new_element1 = EL_WALL;
9570     new_element2 = EL_EMPTY;
9571     new_element3 = EL_SAND;
9572   }
9573
9574   game_engine_type_last = level.game_engine_type;
9575 }
9576
9577 static void InitLevelSetInfo(void)
9578 {
9579   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
9580            "%s", leveldir_current->name);
9581   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
9582            "%s", leveldir_current->author);
9583
9584   levelset_num_levels = leveldir_current->levels;
9585
9586   levelset_use_levelset_artwork = FALSE;
9587   levelset_copy_level_template = FALSE;
9588
9589   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
9590 }
9591
9592 static void ChangeEditorToLevelSet(char *levelset_subdir)
9593 {
9594   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
9595
9596   // the previous level set might have used custom artwork
9597   ReloadCustomArtwork(0);
9598
9599   LoadLevelSetup_SeriesInfo();
9600
9601   SaveLevelSetup_LastSeries();
9602   SaveLevelSetup_SeriesInfo();
9603
9604   TapeErase();
9605
9606   LoadLevel(level_nr);
9607   LoadScore(level_nr);
9608
9609   DrawLevelEd();
9610 }
9611
9612 static boolean useEditorDoorAnimation(void)
9613 {
9614   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
9615   boolean door_1_viewport_unchanged =
9616     (vp_door_1->x      == DX     &&
9617      vp_door_1->y      == DY     &&
9618      vp_door_1->width  == DXSIZE &&
9619      vp_door_1->height == DYSIZE);
9620   boolean door_1_contains_toolbox =
9621     (EX >= DX &&
9622      EY >= DY &&
9623      EX + EXSIZE <= DX + DXSIZE &&
9624      EY + EYSIZE <= DY + DYSIZE);
9625
9626   return (door_1_viewport_unchanged && door_1_contains_toolbox);
9627 }
9628
9629 static void DrawEditorDoorBackground(int graphic, int x, int y,
9630                                      int width, int height)
9631 {
9632   struct GraphicInfo *g = &graphic_info[graphic];
9633
9634   if (g->bitmap != NULL)
9635     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
9636                MIN(width, g->width), MIN(height, g->height), x, y);
9637   else
9638     ClearRectangle(drawto, x, y, width, height);
9639 }
9640
9641 static void DrawEditorDoorContent(void)
9642 {
9643   // needed for gadgets drawn on background (like palette scrollbar)
9644   SetDoorBackgroundImage(IMG_UNDEFINED);
9645
9646   // copy default editor door content to main double buffer
9647   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
9648
9649   // draw bigger door
9650   DrawSpecialEditorDoor();
9651
9652   // draw new control window
9653   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
9654
9655   // draw all toolbox gadgets to editor doors
9656   MapControlButtons();
9657
9658   // when returning from test game to properties page, redraw toolbox gadgets
9659   if (edit_mode == ED_MODE_PROPERTIES)
9660   {
9661     UnmapLevelEditorToolboxDrawingGadgets();
9662     UnmapLevelEditorToolboxCustomGadgets();
9663
9664     MapLevelEditorToolboxCustomGadgetsIfNeeded();
9665   }
9666
9667   // draw all palette gadgets to editor doors
9668   ModifyEditorElementList();
9669   RedrawDrawingElements();
9670
9671   // copy actual editor door content to door double buffer for OpenDoor()
9672   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
9673 }
9674
9675 void DrawLevelEd(void)
9676 {
9677   int fade_mask = REDRAW_FIELD;
9678
9679   FadeSoundsAndMusic();
9680
9681   if (CheckFadeAll())
9682     fade_mask = REDRAW_ALL;
9683
9684   FadeOut(fade_mask);
9685
9686   // needed if different viewport properties defined for editor
9687   ChangeViewportPropertiesIfNeeded();
9688
9689   ClearField();
9690
9691   InitZoomLevelSettings(-1);
9692   InitDrawingElements();
9693   InitLevelSetInfo();
9694
9695 #if DEBUG
9696   CheckElementDescriptions();
9697 #endif
9698
9699   if (level_editor_test_game)
9700   {
9701     CopyPlayfield(level.field, Tile);
9702     CopyPlayfield(TileBackup, level.field);
9703
9704     level_editor_test_game = FALSE;
9705   }
9706   else
9707   {
9708     edit_mode = ED_MODE_DRAWING;
9709     edit_mode_levelconfig = ED_MODE_LEVELCONFIG_LEVEL;
9710     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
9711
9712     ResetUndoBuffer();
9713
9714     level_xpos = -1;
9715     level_ypos = -1;
9716   }
9717
9718   // redraw_mask |= REDRAW_ALL;
9719
9720   FreeLevelEditorGadgets();
9721   CreateLevelEditorGadgets();
9722
9723   ReinitializeElementList();            // update dynamic level element list
9724   ReinitializeElementListButtons();     // custom element may look different
9725
9726   InitElementPropertiesGfxElement();
9727
9728   UnmapAllGadgets();
9729
9730   DrawEditModeWindow_PlayfieldOnly();
9731
9732   DrawMaskedBorder(fade_mask);
9733
9734   // use door animation if door 1 viewport is unchanged and contains toolbox
9735   if (useEditorDoorAnimation())
9736   {
9737     FadeIn(fade_mask);
9738
9739     DrawEditorDoorContent();
9740
9741     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
9742   }
9743   else
9744   {
9745     DrawEditorDoorContent();
9746
9747     FadeIn(fade_mask);
9748   }
9749
9750   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
9751 }
9752
9753 static void AdjustDrawingAreaGadgets(void)
9754 {
9755   int ed_xsize = lev_fieldx + 2;
9756   int ed_ysize = lev_fieldy + 2;
9757   int max_ed_fieldx = MAX_ED_FIELDX;
9758   int max_ed_fieldy = MAX_ED_FIELDY;
9759   boolean horizontal_scrollbar_needed;
9760   boolean vertical_scrollbar_needed;
9761   int x, y, width, height;
9762
9763   if (suppressBorderElement())
9764   {
9765     ed_xsize = lev_fieldx;
9766     ed_ysize = lev_fieldy;
9767   }
9768
9769   // check if we need any scrollbars
9770   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9771   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9772
9773   // check if we have a smaller editor field because of scrollbars
9774   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9775   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9776
9777   // check again if we now need more scrollbars because of less space
9778   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
9779   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
9780
9781   // check if editor field gets even smaller after adding new scrollbars
9782   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
9783   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
9784
9785   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
9786   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
9787
9788   x = SX + ed_fieldx * ed_tilesize;
9789   y = SY + ed_fieldy * ed_tilesize;
9790
9791   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
9792   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
9793
9794   // adjust drawing area gadget
9795   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
9796                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
9797                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
9798                GDI_END);
9799
9800   // adjust horizontal scrollbar gadgets
9801   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
9802                GDI_Y, y,
9803                GDI_END);
9804   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
9805                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
9806                GDI_Y, y,
9807                GDI_END);
9808   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
9809                GDI_Y, y,
9810                GDI_WIDTH, width,
9811                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
9812                GDI_END);
9813
9814   // adjust vertical scrollbar gadgets
9815   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
9816                GDI_X, x,
9817                GDI_END);
9818   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
9819                GDI_X, x,
9820                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
9821                GDI_END);
9822   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
9823                GDI_X, x,
9824                GDI_HEIGHT, height,
9825                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
9826                GDI_END);
9827 }
9828
9829 static void AdjustLevelScrollPosition(void)
9830 {
9831   if (level_xpos < -1)
9832     level_xpos = -1;
9833   if (level_xpos > lev_fieldx - ed_fieldx + 1)
9834     level_xpos = lev_fieldx - ed_fieldx + 1;
9835   if (lev_fieldx < ed_fieldx - 2)
9836     level_xpos = -1;
9837
9838   if (level_ypos < -1)
9839     level_ypos = -1;
9840   if (level_ypos > lev_fieldy - ed_fieldy + 1)
9841     level_ypos = lev_fieldy - ed_fieldy + 1;
9842   if (lev_fieldy < ed_fieldy - 2)
9843     level_ypos = -1;
9844
9845   if (suppressBorderElement())
9846   {
9847     level_xpos = 0;
9848     level_ypos = 0;
9849   }
9850 }
9851
9852 static void AdjustEditorScrollbar(int id)
9853 {
9854   struct GadgetInfo *gi = level_editor_gadget[id];
9855   int items_max, items_visible, item_position;
9856
9857   if (id == GADGET_ID_SCROLL_HORIZONTAL)
9858   {
9859     items_max = MAX(lev_fieldx + 2, ed_fieldx);
9860     items_visible = ed_fieldx;
9861     item_position = level_xpos + 1;
9862   }
9863   else
9864   {
9865     items_max = MAX(lev_fieldy + 2, ed_fieldy);
9866     items_visible = ed_fieldy;
9867     item_position = level_ypos + 1;
9868   }
9869
9870   if (item_position > items_max - items_visible)
9871     item_position = items_max - items_visible;
9872
9873   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9874                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9875 }
9876
9877 static void AdjustElementListScrollbar(void)
9878 {
9879   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
9880   int items_max, items_visible, item_position;
9881
9882   // correct position of element list scrollbar
9883   if (element_shift < 0)
9884     element_shift = 0;
9885   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
9886     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
9887
9888   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
9889   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
9890   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
9891
9892   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9893                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
9894                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9895 }
9896
9897 static void ModifyEditorCounterValue(int counter_id, int new_value)
9898 {
9899   int *counter_value = counterbutton_info[counter_id].value;
9900   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9901   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9902
9903   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
9904
9905   if (counter_value != NULL)
9906     *counter_value = gi->textinput.number_value;
9907 }
9908
9909 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
9910 {
9911   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9912   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9913
9914   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
9915
9916   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
9917       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
9918   {
9919     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
9920     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
9921
9922     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
9923     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
9924                  GDI_END);
9925   }
9926 }
9927
9928 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
9929 {
9930   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9931   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9932   int new_index_value = setSelectboxValue(selectbox_id, new_value);
9933
9934   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
9935 }
9936
9937 static void ModifyEditorSelectboxOptions(int selectbox_id,
9938                                          struct ValueTextInfo *options)
9939 {
9940   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9941   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9942
9943   selectbox_info[selectbox_id].options = options;
9944
9945   // set index to zero -- list may be shorter now (correct later, if needed)
9946   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
9947                GDI_SELECTBOX_OPTIONS, options, GDI_END);
9948 }
9949
9950 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
9951 {
9952   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
9953   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9954
9955   drawingarea_info[drawingarea_id].area_xsize = xsize;
9956   drawingarea_info[drawingarea_id].area_ysize = ysize;
9957
9958   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
9959 }
9960
9961 static void ModifyEditorElementList(void)
9962 {
9963   int i;
9964
9965   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
9966     return;
9967
9968   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
9969   {
9970     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
9971     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9972     struct GadgetDesign *gd = &gi->deco.design;
9973     int element = editor_elements[element_shift + i];
9974     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
9975
9976     UnmapGadget(gi);
9977
9978     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
9979
9980     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
9981
9982     MapGadget(gi);
9983   }
9984 }
9985
9986 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
9987 {
9988   int graphic = el2edimg(element);
9989   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
9990
9991   if (pos->x == -1 &&
9992       pos->y == -1)
9993     return;
9994
9995   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
9996 }
9997
9998 static void ModifyDrawingElementButton(int element, int id)
9999 {
10000   struct GadgetInfo *gi = level_editor_gadget[id];
10001   Bitmap *deco_bitmap;
10002   int deco_x, deco_y;
10003   int tile_size = gi->deco.width;
10004
10005   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
10006
10007   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
10008 }
10009
10010 static void PickDrawingElement(int button, int element)
10011 {
10012   struct
10013   {
10014     int *new_element;
10015     struct XYTileSize *pos;
10016     int id;
10017   } de, drawing_elements[] =
10018   {
10019     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
10020     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
10021     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
10022   };
10023
10024   if (button < 1 || button > 3)
10025     return;
10026
10027   if (IS_MM_WALL(element))
10028     element = map_mm_wall_element(element);
10029
10030   de = drawing_elements[button - 1];
10031
10032   *de.new_element = element;    // update global drawing element variable
10033
10034   DrawDrawingElementGraphic(element, de.pos);
10035   ModifyDrawingElementButton(element, de.id);
10036
10037   redraw_mask |= REDRAW_DOOR_1;
10038 }
10039
10040 static void RedrawDrawingElements(void)
10041 {
10042   PickDrawingElement(1, new_element1);
10043   PickDrawingElement(2, new_element2);
10044   PickDrawingElement(3, new_element3);
10045 }
10046
10047 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
10048 {
10049   stick_element_properties_window = FALSE;
10050
10051   SetMainBackgroundImage(IMG_UNDEFINED);
10052   ClearField();
10053
10054   UnmapLevelEditorFieldGadgets();
10055
10056   AdjustDrawingAreaGadgets();
10057   AdjustLevelScrollPosition();
10058   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
10059   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
10060
10061   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10062
10063   MapMainDrawingArea();
10064
10065   if (remap_toolbox_gadgets)
10066   {
10067     UnmapLevelEditorToolboxCustomGadgets();
10068     MapLevelEditorToolboxDrawingGadgets();
10069   }
10070 }
10071
10072 static void DrawDrawingWindow(void)
10073 {
10074   DrawDrawingWindowExt(TRUE);
10075 }
10076
10077 static int getTabulatorBarWidth(void)
10078 {
10079   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10080   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
10081
10082   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
10083 }
10084
10085 static int getTabulatorBarHeight(void)
10086 {
10087   return ED_TAB_BAR_HEIGHT;
10088 }
10089
10090 static Pixel getTabulatorBarColor(void)
10091 {
10092   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10093   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10094   int gd_x = gd->x + gd_gi1->border.width / 2;
10095   int gd_y = gd->y + gd_gi1->height - 1;
10096
10097   return GetPixel(gd->bitmap, gd_x, gd_y);
10098 }
10099
10100 static void DrawLevelConfigTabulatorGadgets(void)
10101 {
10102   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
10103   Pixel tab_color = getTabulatorBarColor();
10104   int id_first = ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL;
10105   int id_last  = ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR;
10106   int i;
10107
10108   // draw additional "engine" tabulator when using native BD engine
10109   if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
10110     id_last = ED_TEXTBUTTON_ID_LEVELCONFIG_ENGINE;
10111
10112   for (i = id_first; i <= id_last; i++)
10113   {
10114     int gadget_id = textbutton_info[i].gadget_id;
10115     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10116     boolean active = (i != edit_mode_levelconfig);
10117
10118     // draw background line below tabulator button
10119     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10120
10121     // draw solid line below inactive tabulator buttons
10122     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10123       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10124                     ED_GADGET_TINY_DISTANCE, tab_color);
10125
10126     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10127     MapTextbuttonGadget(i);
10128   }
10129
10130   // draw little border line below tabulator buttons
10131   if (tab_color != BLACK_PIXEL)                 // black => transparent
10132     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10133                   ED_GADGET_TINY_DISTANCE,
10134                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10135 }
10136
10137 static void DrawPropertiesTabulatorGadgets(void)
10138 {
10139   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10140   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10141   int gd_x = gd->x + gd_gi1->border.width / 2;
10142   int gd_y = gd->y + gd_gi1->height - 1;
10143   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10144   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
10145   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
10146   int i;
10147
10148   // draw two config tabulators for player elements
10149   if (IS_PLAYER_ELEMENT(properties_element))
10150     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
10151
10152   // draw two config and one "change" tabulator for custom elements
10153   if (IS_CUSTOM_ELEMENT(properties_element))
10154     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
10155
10156   for (i = id_first; i <= id_last; i++)
10157   {
10158     int gadget_id = textbutton_info[i].gadget_id;
10159     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
10160     boolean active = (i != edit_mode_properties);
10161
10162     // use "config 1" and "config 2" instead of "config" for players and CEs
10163     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
10164         (IS_PLAYER_ELEMENT(properties_element) ||
10165          IS_CUSTOM_ELEMENT(properties_element)))
10166       continue;
10167
10168     // draw background line below tabulator button
10169     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
10170
10171     // draw solid line below inactive tabulator buttons
10172     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
10173       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
10174                     ED_GADGET_TINY_DISTANCE, tab_color);
10175
10176     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
10177     MapTextbuttonGadget(i);
10178   }
10179
10180   // draw little border line below tabulator buttons
10181   if (tab_color != BLACK_PIXEL)                 // black => transparent
10182     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
10183                   ED_GADGET_TINY_DISTANCE,
10184                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10185 }
10186
10187 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
10188 {
10189   DrawText(SX + xpos, SY + ypos, text, font_nr);
10190 }
10191
10192 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
10193                                            int xpos, int ypos)
10194 {
10195   int font_width = getFontWidth(font_nr);
10196   int font_height = getFontHeight(font_nr);
10197   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
10198   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
10199
10200   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
10201                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
10202                       TRUE, FALSE, FALSE);
10203 }
10204
10205 static void DrawLevelConfigLevel(void)
10206 {
10207   int i;
10208
10209   // draw counter gadgets
10210   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
10211     MapCounterButtons(i);
10212
10213   // draw checkbutton gadgets
10214   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
10215     MapCheckbuttonGadget(i);
10216
10217   // draw selectbox gadgets
10218   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
10219     MapSelectboxGadget(i);
10220
10221   // draw text input gadgets
10222   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
10223     MapTextInputGadget(i);
10224 }
10225
10226 static char *getLevelSubdirFromSaveMode(int save_mode)
10227 {
10228   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
10229     return getNewUserLevelSubdir();
10230
10231   return leveldir_current->subdir;
10232 }
10233
10234 static void DrawLevelConfigLevelSet_DirectoryInfo(void)
10235 {
10236   char *directory_text = "Level set directory:";
10237   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
10238   int font1_nr = FONT_TEXT_1;
10239   int font2_nr = FONT_TEXT_2;
10240   int font1_height = getFontHeight(font1_nr);
10241   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
10242   int x = ED_LEVEL_SETTINGS_X(0);
10243   int y = ED_LEVEL_SETTINGS_Y(6);
10244
10245   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
10246   PrintInfoText(directory_name, font2_nr, x, y);
10247 }
10248
10249 static void DrawLevelConfigLevelSet(void)
10250 {
10251   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
10252   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
10253   int i;
10254
10255   // draw counter gadgets
10256   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
10257     MapCounterButtons(i);
10258
10259   // draw checkbutton gadgets
10260   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
10261   {
10262     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
10263         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
10264         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
10265       continue;
10266
10267     MapCheckbuttonGadget(i);
10268   }
10269
10270   // draw selectbox gadgets
10271   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
10272     MapSelectboxGadget(i);
10273
10274   // draw text input gadgets
10275   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
10276     MapTextInputGadget(i);
10277
10278   // draw textbutton gadgets
10279   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
10280
10281   // draw info text
10282   DrawLevelConfigLevelSet_DirectoryInfo();
10283 }
10284
10285 static void DrawLevelConfigEditor(void)
10286 {
10287   int i;
10288
10289   // draw counter gadgets
10290   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
10291     MapCounterButtons(i);
10292
10293   // draw checkbutton gadgets
10294   for (i = ED_CHECKBUTTON_ID_EDITOR_FIRST; i <= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
10295     MapCheckbuttonGadget(i);
10296
10297   // draw radiobutton gadgets
10298   for (i = ED_RADIOBUTTON_ID_EDITOR_FIRST; i <= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
10299     MapRadiobuttonGadget(i);
10300
10301   // draw drawing area
10302   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
10303
10304   // draw textbutton gadgets
10305   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
10306 }
10307
10308 static void DrawLevelConfigEngine(void)
10309 {
10310   int i;
10311
10312   // draw counter gadgets
10313   if (level.bd_scheduling_type == GD_SCHEDULING_MILLISECONDS)
10314   {
10315     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_MS);
10316     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_CYCLES);
10317   }
10318   else
10319   {
10320     MapCounterButtons(ED_COUNTER_ID_BD_CYCLE_DELAY_C64);
10321     MapCounterButtons(ED_COUNTER_ID_BD_HATCHING_DELAY_SECONDS);
10322   }
10323
10324   // draw checkbutton gadgets
10325   for (i = ED_CHECKBUTTON_ID_ENGINE_FIRST; i <= ED_CHECKBUTTON_ID_ENGINE_LAST; i++)
10326     MapCheckbuttonGadget(i);
10327
10328   // draw selectbox gadgets
10329   for (i = ED_SELECTBOX_ID_ENGINE_FIRST; i <= ED_SELECTBOX_ID_ENGINE_LAST; i++)
10330     MapSelectboxGadget(i);
10331 }
10332
10333 static void DrawLevelConfigWindow(void)
10334 {
10335   char *text = "Global Settings";
10336   int font_nr = FONT_TITLE_1;
10337   struct MenuPosInfo *pos = &editor.settings.headline;
10338   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
10339   int sy = SY + pos->y;
10340
10341   stick_element_properties_window = FALSE;
10342
10343   SetAutomaticNumberOfGemsNeeded();
10344
10345   UnmapLevelEditorFieldGadgets();
10346
10347   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10348   ClearField();
10349
10350   DrawText(sx, sy, text, font_nr);
10351
10352   DrawLevelConfigTabulatorGadgets();
10353
10354   if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVEL)
10355     DrawLevelConfigLevel();
10356   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVELSET)
10357     DrawLevelConfigLevelSet();
10358   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_EDITOR)
10359     DrawLevelConfigEditor();
10360   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_ENGINE)
10361     DrawLevelConfigEngine();
10362 }
10363
10364 static void DrawCustomContentArea(void)
10365 {
10366   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
10367   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10368   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
10369   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
10370   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
10371   int xoffset = ED_GADGET_SPACE_DISTANCE;
10372
10373   // add distance for potential left text (without drawing area border)
10374   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
10375
10376   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10377
10378   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
10379 }
10380
10381 static void DrawCustomChangeContentArea(void)
10382 {
10383   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
10384   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
10385   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
10386   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
10387   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
10388   int xoffset = ED_GADGET_SPACE_DISTANCE;
10389
10390   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
10391
10392   MapDrawingArea(id);
10393 }
10394
10395 static void RemoveElementContentArea(int id, int font_height)
10396 {
10397   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10398
10399   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
10400                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
10401                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10402                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
10403                  ED_GADGET_TEXT_DISTANCE + font_height);
10404 }
10405
10406 static void DrawYamYamContentAreas(void)
10407 {
10408   int font_nr = FONT_TEXT_1;
10409   int font_height = getFontHeight(font_nr);
10410   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10411   int yoffset = (tilesize - font_height) / 2;
10412   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
10413   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
10414   int i;
10415
10416   // display counter to choose number of element content areas
10417   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
10418
10419   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10420   {
10421     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
10422
10423     if (i < level.num_yamyam_contents)
10424     {
10425       MapDrawingArea(id);
10426     }
10427     else
10428     {
10429       UnmapDrawingArea(id);
10430
10431       // delete content areas in case of reducing number of them
10432       RemoveElementContentArea(id, font_height);
10433     }
10434   }
10435
10436   DrawText(x, y + 0 * tilesize, "content", font_nr);
10437   DrawText(x, y + 1 * tilesize, "when",    font_nr);
10438   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
10439 }
10440
10441 static void DrawMagicBallContentAreas(void)
10442 {
10443   int font_nr = FONT_TEXT_1;
10444   int font_height = getFontHeight(font_nr);
10445   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
10446   int yoffset = (tilesize - font_height) / 2;
10447   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
10448   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
10449   int i;
10450
10451   // display counter to choose number of element content areas
10452   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
10453
10454   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
10455   {
10456     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
10457
10458     if (i < level.num_ball_contents)
10459     {
10460       MapDrawingArea(id);
10461     }
10462     else
10463     {
10464       UnmapDrawingArea(id);
10465
10466       // delete content areas in case of reducing number of them
10467       RemoveElementContentArea(id, font_height);
10468     }
10469   }
10470
10471   DrawText(x, y + 0 * tilesize, "generated", font_nr);
10472   DrawText(x, y + 1 * tilesize, "when",      font_nr);
10473   DrawText(x, y + 2 * tilesize, "active",    font_nr);
10474 }
10475
10476 static void DrawAndroidElementArea(void)
10477 {
10478   int id = ED_DRAWING_ID_ANDROID_CONTENT;
10479   int num_elements = level.num_android_clone_elements;
10480   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10481   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10482   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10483   int xsize = MAX_ANDROID_ELEMENTS;
10484   int ysize = 1;
10485
10486   // display counter to choose number of element areas
10487   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
10488
10489   if (drawingarea_info[id].text_left != NULL)
10490     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10491
10492   UnmapDrawingArea(id);
10493
10494   ModifyEditorDrawingArea(id, num_elements, 1);
10495
10496   // delete content areas in case of reducing number of them
10497   DrawBackground(sx, sy,
10498                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10499                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10500
10501   MapDrawingArea(id);
10502 }
10503
10504 static void DrawGroupElementArea(void)
10505 {
10506   int id = ED_DRAWING_ID_GROUP_CONTENT;
10507   int num_elements = group_element_info.num_elements;
10508   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10509   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10510   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10511   int xsize = MAX_ELEMENTS_IN_GROUP;
10512   int ysize = 1;
10513
10514   if (drawingarea_info[id].text_left != NULL)
10515     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10516
10517   UnmapDrawingArea(id);
10518
10519   ModifyEditorDrawingArea(id, num_elements, 1);
10520
10521   // delete content areas in case of reducing number of them
10522   DrawBackground(sx, sy,
10523                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10524                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10525
10526   MapDrawingArea(id);
10527 }
10528
10529 static void DrawPlayerInitialInventoryArea(int element)
10530 {
10531   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
10532   int player_nr = GET_PLAYER_NR(element);
10533   int num_elements = level.initial_inventory_size[player_nr];
10534   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10535   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10536   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10537   int xsize = MAX_INITIAL_INVENTORY_SIZE;
10538   int ysize = 1;
10539
10540   // determine horizontal position to the right of specified gadget
10541   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
10542     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
10543           ED_DRAWINGAREA_TEXT_DISTANCE);
10544
10545   // determine horizontal offset for leading text
10546   if (drawingarea_info[id].text_left != NULL)
10547     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10548
10549   UnmapDrawingArea(id);
10550
10551   ModifyEditorDrawingArea(id, num_elements, 1);
10552
10553   // delete content areas in case of reducing number of them
10554   DrawBackground(sx, sy,
10555                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10556                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10557
10558   MapDrawingArea(id);
10559 }
10560
10561 static void DrawMMBallContentArea(void)
10562 {
10563   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
10564   int num_elements = level.num_mm_ball_contents;
10565   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
10566   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
10567   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
10568   int xsize = MAX_MM_BALL_CONTENTS;
10569   int ysize = 1;
10570
10571   if (drawingarea_info[id].text_left != NULL)
10572     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
10573
10574   UnmapDrawingArea(id);
10575
10576   ModifyEditorDrawingArea(id, num_elements, 1);
10577
10578   // delete content areas in case of reducing number of them
10579   DrawBackground(sx, sy,
10580                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
10581                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
10582
10583   MapDrawingArea(id);
10584 }
10585
10586 static void DrawEnvelopeTextArea(int envelope_nr)
10587 {
10588   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
10589   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
10590
10591   UnmapGadget(gi);
10592
10593   DrawBackground(gi->x, gi->y,
10594                  gi->textarea.crop_width, gi->textarea.crop_height);
10595
10596   if (envelope_nr != -1)
10597     textarea_info[id].value = level.envelope[envelope_nr].text;
10598
10599   ModifyGadget(gi, GDI_AREA_SIZE,
10600                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
10601                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
10602                GDI_END);
10603
10604   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
10605 }
10606
10607 static void DrawPropertiesInfo(void)
10608 {
10609   static struct
10610   {
10611     int value;
10612     char *text;
10613   }
10614   properties[] =
10615   {
10616     // configurable properties
10617
10618     { EP_WALKABLE_OVER,         "- player can walk over it"             },
10619     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
10620     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
10621     { EP_PASSABLE_OVER,         "- player can pass over it"             },
10622     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
10623     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
10624     { EP_PROTECTED,             "- player is protected by it"           },
10625
10626     { EP_DIGGABLE,              "- can be digged away"                  },
10627     { EP_COLLECTIBLE,           "- can be collected"                    },
10628     { EP_DROPPABLE,             "- can be dropped after collecting"     },
10629     { EP_THROWABLE,             "- can be thrown after collecting"      },
10630     { EP_PUSHABLE,              "- can be pushed"                       },
10631
10632     { EP_CAN_FALL,              "- can fall"                            },
10633     { EP_CAN_MOVE,              "- can move"                            },
10634
10635     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
10636 #if 0
10637     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
10638 #endif
10639     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
10640
10641     { EP_SLIPPERY,              "- slippery for falling elements"       },
10642     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
10643
10644     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
10645     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
10646     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
10647     { EP_DONT_TOUCH,            "- deadly when touching"                },
10648
10649     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
10650
10651     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
10652     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
10653     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
10654
10655     { EP_CAN_CHANGE,            "- can change to other element"         },
10656
10657     // pre-defined properties
10658     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
10659     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
10660     { EP_SWITCHABLE,            "- can be switched"                     },
10661 #if 0
10662     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
10663 #endif
10664
10665     { -1,                       NULL                                    }
10666   };
10667   char *filename = getElementDescriptionFilename(properties_element);
10668   char *num_elements_text = "In this level: ";
10669   char *num_similar_text = "Similar tiles: ";
10670   char *properties_text = "Standard properties: ";
10671   char *description_text = "Description:";
10672   char *no_description_text = "No description available.";
10673   char *none_text = "None";
10674   float percentage;
10675   int num_elements_in_level = 0;
10676   int num_similar_in_level = 0;
10677   int num_hires_tiles_in_level = 0;
10678   int num_standard_properties = 0;
10679   int font1_nr = FONT_TEXT_1;
10680   int font2_nr = FONT_TEXT_2;
10681   int font1_width = getFontWidth(font1_nr);
10682   int font1_height = getFontHeight(font1_nr);
10683   int font2_height = getFontHeight(font2_nr);
10684   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
10685   int font2_yoffset = (font1_height - font2_height) / 2;
10686   int num_elements_text_len = strlen(num_elements_text) * font1_width;
10687   int num_similar_text_len = strlen(num_similar_text) * font1_width;
10688   int properties_text_len = strlen(properties_text) * font1_width;
10689   int xpos = ED_ELEMENT_SETTINGS_X(0);
10690   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10691   int i, x, y;
10692
10693   if (setup.editor.show_element_token)
10694   {
10695     int font3_nr = FONT_TEXT_3;
10696     int font3_height = getFontHeight(font3_nr);
10697
10698     DrawTextF(xpos, ypos, font3_nr,
10699               "[%s]", element_info[properties_element].token_name);
10700
10701     ypos += 2 * font3_height;
10702   }
10703
10704   // ----- print number of elements / percentage of this element in level
10705
10706   for (y = 0; y < lev_fieldy; y++)
10707   {
10708     for (x = 0; x < lev_fieldx; x++)
10709     {
10710       if (Tile[x][y] == properties_element)
10711       {
10712         num_elements_in_level++;
10713       }
10714       else if (IS_MM_WALL(Tile[x][y]) &&
10715                map_mm_wall_element(Tile[x][y]) == properties_element)
10716       {
10717         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
10718       }
10719     }
10720   }
10721
10722   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10723
10724   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
10725
10726   if (num_hires_tiles_in_level > 0)
10727     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10728               "%d wall tiles", num_hires_tiles_in_level);
10729   else if (num_elements_in_level > 0)
10730     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10731               "%d (%.2f %%)", num_elements_in_level, percentage);
10732   else
10733     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
10734               none_text);
10735
10736   // ----- print number of similar elements / percentage of them in level
10737
10738   for (y = 0; y < lev_fieldy; y++)
10739   {
10740     for (x = 0; x < lev_fieldx; x++)
10741     {
10742       if (strEqual(element_info[Tile[x][y]].class_name,
10743                    element_info[properties_element].class_name))
10744       {
10745         num_similar_in_level++;
10746       }
10747     }
10748   }
10749
10750   if (num_similar_in_level != num_elements_in_level)
10751   {
10752     ypos += 1 * MAX(font1_height, font2_height);
10753
10754     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
10755
10756     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
10757
10758     if (num_similar_in_level > 0)
10759       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10760                 "%d (%.2f %%)", num_similar_in_level, percentage);
10761     else
10762       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
10763                 none_text);
10764   }
10765
10766   ypos += 2 * MAX(font1_height, font2_height);
10767
10768   // ----- print standard properties of this element
10769
10770   DrawTextS(xpos, ypos, font1_nr, properties_text);
10771
10772   ypos += line1_height;
10773
10774   for (i = 0; properties[i].value != -1; i++)
10775   {
10776     if (!HAS_PROPERTY(properties_element, properties[i].value))
10777       continue;
10778
10779     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
10780
10781     ypos += font2_height;
10782
10783     num_standard_properties++;
10784   }
10785
10786   if (num_standard_properties == 0)
10787   {
10788     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
10789               font2_nr, none_text);
10790
10791     ypos -= (line1_height - font1_height);
10792   }
10793
10794   ypos += MAX(font1_height, font2_height);
10795
10796   // ----- print special description of this element
10797
10798   PrintInfoText(description_text, font1_nr, xpos, ypos);
10799
10800   ypos += line1_height;
10801
10802   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
10803     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
10804 }
10805
10806 #define TEXT_COLLECTING         "Score for collecting"
10807 #define TEXT_COLLECTING_EXTRA   "Score for extra diamonds"
10808 #define TEXT_SMASHING           "Score for smashing"
10809 #define TEXT_SLURPING           "Score for slurping robot"
10810 #define TEXT_CRACKING           "Score for cracking"
10811 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
10812 #define TEXT_AMOEBA_THRESHOED   "Size for turning to rocks"
10813 #define TEXT_AMOEBA_SLOW_TIME   "Slow growth time (seconds)"
10814 #define TEXT_AMOEBA_SLOW_RATE   "Slow growth rate (percent)"
10815 #define TEXT_AMOEBA_FAST_RATE   "Fast growth rate (percent)"
10816 #define TEXT_DURATION           "Duration when activated"
10817 #define TEXT_DELAY_ON           "Delay before activating"
10818 #define TEXT_DELAY_OFF          "Delay before deactivating"
10819 #define TEXT_DELAY_CHANGING     "Delay before changing"
10820 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
10821 #define TEXT_DELAY_MOVING       "Delay before moving"
10822 #define TEXT_BALL_DELAY         "Element generation delay"
10823 #define TEXT_MOVE_SPEED         "Speed of android moving"
10824 #define TEXT_CLONE_SPEED        "Speed of android cloning"
10825 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
10826 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
10827 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
10828 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
10829 #define TEXT_TIME_BONUS         "Extra time to solve level"
10830 #define TEXT_TIME_PENALTY       "Time penalty if destroyed"
10831
10832 static struct
10833 {
10834   int element;
10835   int *value;
10836   char *text;
10837   int min_value;
10838   int max_value;
10839 } elements_with_counter[] =
10840 {
10841   { EL_EMERALD,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10842   { EL_BD_DIAMOND,              &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10843   { EL_BD_DIAMOND,              &level.score[SC_DIAMOND_EXTRA],         TEXT_COLLECTING_EXTRA   },
10844   { EL_EMERALD_YELLOW,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10845   { EL_EMERALD_RED,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10846   { EL_EMERALD_PURPLE,          &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10847   { EL_SP_INFOTRON,             &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10848   { EL_DIAMOND,                 &level.score[SC_DIAMOND],               TEXT_COLLECTING         },
10849   { EL_CRYSTAL,                 &level.score[SC_CRYSTAL],               TEXT_COLLECTING         },
10850   { EL_PEARL,                   &level.score[SC_PEARL],                 TEXT_COLLECTING         },
10851   { EL_BUG,                     &level.score[SC_BUG],                   TEXT_SMASHING           },
10852   { EL_BUG_RIGHT,               &level.score[SC_BUG],                   TEXT_SMASHING           },
10853   { EL_BUG_UP,                  &level.score[SC_BUG],                   TEXT_SMASHING           },
10854   { EL_BUG_LEFT,                &level.score[SC_BUG],                   TEXT_SMASHING           },
10855   { EL_BUG_DOWN,                &level.score[SC_BUG],                   TEXT_SMASHING           },
10856   { EL_BD_BUTTERFLY,            &level.score[SC_BUG],                   TEXT_SMASHING           },
10857   { EL_BD_BUTTERFLY_RIGHT,      &level.score[SC_BUG],                   TEXT_SMASHING           },
10858   { EL_BD_BUTTERFLY_UP,         &level.score[SC_BUG],                   TEXT_SMASHING           },
10859   { EL_BD_BUTTERFLY_LEFT,       &level.score[SC_BUG],                   TEXT_SMASHING           },
10860   { EL_BD_BUTTERFLY_DOWN,       &level.score[SC_BUG],                   TEXT_SMASHING           },
10861   { EL_SP_ELECTRON,             &level.score[SC_BUG],                   TEXT_SMASHING           },
10862   { EL_SPACESHIP,               &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10863   { EL_SPACESHIP_RIGHT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10864   { EL_SPACESHIP_UP,            &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10865   { EL_SPACESHIP_LEFT,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10866   { EL_SPACESHIP_DOWN,          &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10867   { EL_BD_FIREFLY,              &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10868   { EL_BD_FIREFLY_RIGHT,        &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10869   { EL_BD_FIREFLY_UP,           &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10870   { EL_BD_FIREFLY_LEFT,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10871   { EL_BD_FIREFLY_DOWN,         &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10872   { EL_SP_SNIKSNAK,             &level.score[SC_SPACESHIP],             TEXT_SMASHING           },
10873   { EL_YAMYAM,                  &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10874   { EL_YAMYAM_LEFT,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10875   { EL_YAMYAM_RIGHT,            &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10876   { EL_YAMYAM_UP,               &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10877   { EL_YAMYAM_DOWN,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10878   { EL_DARK_YAMYAM,             &level.score[SC_YAMYAM],                TEXT_SMASHING           },
10879   { EL_ROBOT,                   &level.score[SC_ROBOT],                 TEXT_SMASHING           },
10880   { EL_PACMAN,                  &level.score[SC_PACMAN],                TEXT_SMASHING           },
10881   { EL_PACMAN_RIGHT,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
10882   { EL_PACMAN_UP,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
10883   { EL_PACMAN_LEFT,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
10884   { EL_PACMAN_DOWN,             &level.score[SC_PACMAN],                TEXT_SMASHING           },
10885   { EL_NUT,                     &level.score[SC_NUT],                   TEXT_CRACKING           },
10886   { EL_DYNAMITE,                &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10887   { EL_EM_DYNAMITE,             &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10888   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10889   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10890   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],              TEXT_COLLECTING         },
10891   { EL_SHIELD_NORMAL,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
10892   { EL_SHIELD_DEADLY,           &level.score[SC_SHIELD],                TEXT_COLLECTING         },
10893   { EL_EXTRA_TIME,              &level.extra_time_score,                TEXT_COLLECTING         },
10894   { EL_KEY_1,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10895   { EL_KEY_2,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10896   { EL_KEY_3,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10897   { EL_KEY_4,                   &level.score[SC_KEY],                   TEXT_COLLECTING         },
10898   { EL_EM_KEY_1,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10899   { EL_EM_KEY_2,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10900   { EL_EM_KEY_3,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10901   { EL_EM_KEY_4,                &level.score[SC_KEY],                   TEXT_COLLECTING         },
10902   { EL_EMC_KEY_5,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10903   { EL_EMC_KEY_6,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10904   { EL_EMC_KEY_7,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10905   { EL_EMC_KEY_8,               &level.score[SC_KEY],                   TEXT_COLLECTING         },
10906   { EL_DC_KEY_WHITE,            &level.score[SC_KEY],                   TEXT_COLLECTING         },
10907   { EL_MM_KETTLE,               &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10908   { EL_DF_CELL,                 &level.score[SC_EMERALD],               TEXT_COLLECTING         },
10909   { EL_MM_KEY,                  &level.score[SC_KEY],                   TEXT_COLLECTING         },
10910   { EL_MM_LIGHTBALL,            &level.score[SC_ELEM_BONUS],            TEXT_COLLECTING         },
10911   { EL_MM_PACMAN,               &level.score[SC_PACMAN],                TEXT_SMASHING           },
10912   { EL_MM_PACMAN_RIGHT,         &level.score[SC_PACMAN],                TEXT_SMASHING           },
10913   { EL_MM_PACMAN_UP,            &level.score[SC_PACMAN],                TEXT_SMASHING           },
10914   { EL_MM_PACMAN_LEFT,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
10915   { EL_MM_PACMAN_DOWN,          &level.score[SC_PACMAN],                TEXT_SMASHING           },
10916   { EL_AMOEBA_WET,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10917   { EL_AMOEBA_DRY,              &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10918   { EL_AMOEBA_FULL,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10919   { EL_BD_AMOEBA,               &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10920   { EL_EMC_DRIPPER,             &level.amoeba_speed,                    TEXT_AMOEBA_SPEED       },
10921   { EL_BD_AMOEBA,               &level.bd_amoeba_threshold_too_big,     TEXT_AMOEBA_THRESHOED   },
10922   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_time,      TEXT_AMOEBA_SLOW_TIME   },
10923   { EL_BD_AMOEBA,               &level.bd_amoeba_slow_growth_rate,      TEXT_AMOEBA_SLOW_RATE,
10924                                 0, 100                                                          },
10925   { EL_BD_AMOEBA,               &level.bd_amoeba_fast_growth_rate,      TEXT_AMOEBA_FAST_RATE,
10926                                 0, 100                                                          },
10927   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_threshold_too_big,   TEXT_AMOEBA_THRESHOED   },
10928   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_time,    TEXT_AMOEBA_SLOW_TIME   },
10929   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_slow_growth_rate,    TEXT_AMOEBA_SLOW_RATE,
10930                                 0, 100                                                          },
10931   { EL_BD_AMOEBA_2,             &level.bd_amoeba_2_fast_growth_rate,    TEXT_AMOEBA_FAST_RATE,
10932                                 0, 100                                                          },
10933   { EL_MAGIC_WALL,              &level.time_magic_wall,                 TEXT_DURATION           },
10934   { EL_BD_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
10935   { EL_DC_MAGIC_WALL,           &level.time_magic_wall,                 TEXT_DURATION           },
10936   { EL_ROBOT_WHEEL,             &level.time_wheel,                      TEXT_DURATION           },
10937   { EL_TIMEGATE_SWITCH,         &level.time_timegate,                   TEXT_DURATION           },
10938   { EL_DC_TIMEGATE_SWITCH,      &level.time_timegate,                   TEXT_DURATION           },
10939   { EL_LIGHT_SWITCH,            &level.time_light,                      TEXT_DURATION           },
10940   { EL_LIGHT_SWITCH_ACTIVE,     &level.time_light,                      TEXT_DURATION           },
10941   { EL_SHIELD_NORMAL,           &level.shield_normal_time,              TEXT_DURATION           },
10942   { EL_SHIELD_DEADLY,           &level.shield_deadly_time,              TEXT_DURATION           },
10943   { EL_BD_CLOCK,                &level.bd_clock_extra_time,             TEXT_TIME_BONUS,
10944                                 -100, 100                                                       },
10945   { EL_BD_VOODOO_DOLL,          &level.bd_voodoo_penalty_time,          TEXT_TIME_PENALTY,
10946                                 0, 100                                                          },
10947   { EL_EXTRA_TIME,              &level.extra_time,                      TEXT_TIME_BONUS         },
10948   { EL_TIME_ORB_FULL,           &level.time_orb_time,                   TEXT_TIME_BONUS         },
10949   { EL_GAME_OF_LIFE,            &level.game_of_life[0],                 TEXT_GAME_OF_LIFE_1,0,8 },
10950   { EL_GAME_OF_LIFE,            &level.game_of_life[1],                 TEXT_GAME_OF_LIFE_2,0,8 },
10951   { EL_GAME_OF_LIFE,            &level.game_of_life[2],                 TEXT_GAME_OF_LIFE_3,0,8 },
10952   { EL_GAME_OF_LIFE,            &level.game_of_life[3],                 TEXT_GAME_OF_LIFE_4,0,8 },
10953   { EL_BIOMAZE,                 &level.biomaze[0],                      TEXT_GAME_OF_LIFE_1,0,8 },
10954   { EL_BIOMAZE,                 &level.biomaze[1],                      TEXT_GAME_OF_LIFE_2,0,8 },
10955   { EL_BIOMAZE,                 &level.biomaze[2],                      TEXT_GAME_OF_LIFE_3,0,8 },
10956   { EL_BIOMAZE,                 &level.biomaze[3],                      TEXT_GAME_OF_LIFE_4,0,8 },
10957   { EL_EMC_ANDROID,             &level.android_move_time,               TEXT_MOVE_SPEED         },
10958   { EL_EMC_ANDROID,             &level.android_clone_time,              TEXT_CLONE_SPEED        },
10959   { EL_EMC_MAGIC_BALL,          &level.ball_time,                       TEXT_BALL_DELAY         },
10960   { EL_EMC_LENSES,              &level.lenses_score,                    TEXT_COLLECTING         },
10961   { EL_EMC_MAGNIFIER,           &level.magnify_score,                   TEXT_COLLECTING         },
10962   { EL_SPRING,                  &level.slurp_score,                     TEXT_SLURPING           },
10963   { EL_SPRING_LEFT,             &level.slurp_score,                     TEXT_SLURPING           },
10964   { EL_SPRING_RIGHT,            &level.slurp_score,                     TEXT_SLURPING           },
10965   { EL_EMC_LENSES,              &level.lenses_time,                     TEXT_DURATION           },
10966   { EL_EMC_MAGNIFIER,           &level.magnify_time,                    TEXT_DURATION           },
10967   { EL_MM_FUSE_ACTIVE,          &level.mm_time_fuse,                    TEXT_DELAY_OFF          },
10968   { EL_MM_BOMB,                 &level.mm_time_bomb,                    TEXT_DELAY_EXPLODING    },
10969   { EL_MM_GRAY_BALL,            &level.mm_time_ball,                    TEXT_DELAY_CHANGING     },
10970   { EL_MM_STEEL_BLOCK,          &level.mm_time_block,                   TEXT_DELAY_MOVING       },
10971   { EL_MM_WOODEN_BLOCK,         &level.mm_time_block,                   TEXT_DELAY_MOVING       },
10972
10973   { -1,                         NULL,                                   NULL                    }
10974 };
10975
10976 static boolean checkPropertiesConfig(int element)
10977 {
10978   int i;
10979
10980   // special case: empty space customization only available in R'n'D game engine
10981   if (element == EL_EMPTY_SPACE && level.game_engine_type != GAME_ENGINE_TYPE_RND)
10982     return FALSE;
10983
10984   // special case: BD style rock customization only available in BD game engine
10985   if (element == EL_BD_ROCK && level.game_engine_type != GAME_ENGINE_TYPE_BD)
10986     return FALSE;
10987
10988   if (IS_GEM(element) ||
10989       IS_CUSTOM_ELEMENT(element) ||
10990       IS_GROUP_ELEMENT(element) ||
10991       IS_EMPTY_ELEMENT(element) ||
10992       IS_BALLOON_ELEMENT(element) ||
10993       IS_ENVELOPE(element) ||
10994       IS_MM_ENVELOPE(element) ||
10995       IS_MM_MCDUFFIN(element) ||
10996       IS_DF_LASER(element) ||
10997       IS_PLAYER_ELEMENT(element) ||
10998       IS_BD_PLAYER_ELEMENT(element) ||
10999       IS_SOKOBAN_OBJECT_OR_FIELD(element) ||
11000       HAS_EDITOR_CONTENT(element) ||
11001       CAN_GROW(element) ||
11002       COULD_MOVE_INTO_ACID(element) ||
11003       MAYBE_DONT_COLLIDE_WITH(element) ||
11004       element == EL_BD_ROCK ||
11005       element == EL_BD_MEGA_ROCK ||
11006       element == EL_BD_SWEET ||
11007       element == EL_BD_VOODOO_DOLL)
11008   {
11009     return TRUE;
11010   }
11011   else
11012   {
11013     for (i = 0; elements_with_counter[i].element != -1; i++)
11014       if (elements_with_counter[i].element == element)
11015         return TRUE;
11016   }
11017
11018   return FALSE;
11019 }
11020
11021 static void SetAutomaticNumberOfGemsNeeded(void)
11022 {
11023   int x, y;
11024
11025   if (!level.auto_count_gems)
11026     return;
11027
11028   level.gems_needed = 0;
11029
11030   for (x = 0; x < lev_fieldx; x++)
11031   {
11032     for (y = 0; y < lev_fieldy; y++)
11033     {
11034       int element = Tile[x][y];
11035
11036       switch (element)
11037       {
11038         case EL_EMERALD:
11039         case EL_EMERALD_YELLOW:
11040         case EL_EMERALD_RED:
11041         case EL_EMERALD_PURPLE:
11042         case EL_BD_DIAMOND:
11043         case EL_WALL_EMERALD:
11044         case EL_WALL_EMERALD_YELLOW:
11045         case EL_WALL_EMERALD_RED:
11046         case EL_WALL_EMERALD_PURPLE:
11047         case EL_WALL_BD_DIAMOND:
11048         case EL_NUT:
11049         case EL_SP_INFOTRON:
11050         case EL_MM_KETTLE:
11051         case EL_DF_CELL:
11052           level.gems_needed++;
11053           break;
11054
11055         case EL_DIAMOND:
11056         case EL_WALL_DIAMOND:
11057           level.gems_needed += 3;
11058           break;
11059
11060         case EL_PEARL:
11061         case EL_WALL_PEARL:
11062           level.gems_needed += 5;
11063           break;
11064
11065         case EL_CRYSTAL:
11066         case EL_WALL_CRYSTAL:
11067           level.gems_needed += 8;
11068           break;
11069
11070         default:
11071           break;
11072       }
11073     }
11074   }
11075
11076   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
11077 }
11078
11079 static void DrawPropertiesConfig(void)
11080 {
11081   boolean draw_footer_line = FALSE;
11082   int max_num_element_counters = 4;
11083   int num_element_counters = 0;
11084   int i;
11085
11086   if (!checkPropertiesConfig(properties_element))
11087   {
11088     int xpos = ED_ELEMENT_SETTINGS_X(0);
11089     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
11090
11091     PrintInfoText("No configuration options available.", FONT_TEXT_1, xpos, ypos);
11092
11093     return;
11094   }
11095
11096   // check if there are elements where a value can be chosen for
11097   for (i = 0; elements_with_counter[i].element != -1; i++)
11098   {
11099     if (elements_with_counter[i].element != properties_element)
11100       continue;
11101
11102     // special case: score for extra diamonds only available in BD game engine
11103     if (elements_with_counter[i].element == EL_BD_DIAMOND &&
11104         elements_with_counter[i].value == &level.score[SC_DIAMOND_EXTRA] &&
11105         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11106       continue;
11107
11108     // special case: some amoeba counters only available in BD game engine
11109     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11110         elements_with_counter[i].value != &level.amoeba_speed &&
11111         level.game_engine_type != GAME_ENGINE_TYPE_BD)
11112       continue;
11113
11114     // special case: some amoeba counters only available in R'n'D game engine
11115     if (elements_with_counter[i].element == EL_BD_AMOEBA &&
11116         elements_with_counter[i].value == &level.amoeba_speed &&
11117         level.game_engine_type == GAME_ENGINE_TYPE_BD)
11118       continue;
11119
11120     int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
11121
11122     counterbutton_info[counter_id].y =
11123       ED_ELEMENT_SETTINGS_YPOS((HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
11124                                (CAN_GROW(properties_element)                ? 1 : 0) +
11125                                (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
11126                                (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
11127                                (properties_element == EL_BD_VOODOO_DOLL     ? 4 : 0) +
11128                                (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
11129                                num_element_counters);
11130
11131     // special case: set amoeba counters for BD game engine separately
11132     if ((properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD) ||
11133         (properties_element == EL_BD_AMOEBA_2))
11134       counterbutton_info[counter_id].y = ED_ELEMENT_SETTINGS_YPOS(3 + num_element_counters);
11135
11136     counterbutton_info[counter_id].value      = elements_with_counter[i].value;
11137     counterbutton_info[counter_id].text_right = elements_with_counter[i].text;
11138     counterbutton_info[counter_id].min_value  = elements_with_counter[i].min_value;
11139     counterbutton_info[counter_id].max_value  = elements_with_counter[i].max_value;
11140
11141     // default: counter values between 0 and 999
11142     if (counterbutton_info[counter_id].max_value == 0)
11143       counterbutton_info[counter_id].max_value = 999;
11144
11145     MapCounterButtons(counter_id);
11146
11147     num_element_counters++;
11148     if (num_element_counters >= max_num_element_counters)
11149       break;
11150   }
11151
11152   if (HAS_EDITOR_CONTENT(properties_element))
11153   {
11154     // draw stickybutton gadget
11155     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11156
11157     if (properties_element == EL_BD_AMOEBA && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11158     {
11159       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11160       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11161
11162       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_TOO_BIG);
11163       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_CONTENT_ENCLOSED);
11164     }
11165     else if (properties_element == EL_BD_AMOEBA_2)
11166     {
11167       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_WAIT_FOR_HATCHING);
11168       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_START_IMMEDIATELY);
11169       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_AMOEBA_2_EXPLODE_BY_AMOEBA);
11170
11171       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_TOO_BIG);
11172       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_ENCLOSED);
11173       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_EXPLODING);
11174       MapDrawingArea(ED_DRAWING_ID_BD_AMOEBA_2_CONTENT_LOOKS_LIKE);
11175     }
11176     else if (IS_AMOEBOID(properties_element))
11177       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
11178     else if (properties_element == EL_YAMYAM ||
11179              properties_element == EL_YAMYAM_LEFT ||
11180              properties_element == EL_YAMYAM_RIGHT ||
11181              properties_element == EL_YAMYAM_UP ||
11182              properties_element == EL_YAMYAM_DOWN)
11183       DrawYamYamContentAreas();
11184     else if (properties_element == EL_EMC_MAGIC_BALL)
11185     {
11186       DrawMagicBallContentAreas();
11187
11188       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
11189       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
11190     }
11191     else if (properties_element == EL_EMC_ANDROID)
11192       DrawAndroidElementArea();
11193     else if (properties_element == EL_MM_GRAY_BALL)
11194     {
11195       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
11196       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
11197       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
11198       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
11199
11200       DrawMMBallContentArea();
11201     }
11202   }
11203
11204   if (IS_PLAYER_ELEMENT(properties_element))
11205   {
11206     int player_nr = GET_PLAYER_NR(properties_element);
11207
11208     // these properties can be set for every player individually
11209
11210     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11211     {
11212       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
11213         &level.start_element[player_nr];
11214       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
11215         &level.artwork_element[player_nr];
11216       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
11217         &level.explosion_element[player_nr];
11218
11219       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
11220         &level.use_start_element[player_nr];
11221       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
11222         &level.use_artwork_element[player_nr];
11223       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
11224         &level.use_explosion_element[player_nr];
11225       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
11226         &level.initial_player_gravity[player_nr];
11227
11228       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
11229         &level.initial_player_stepsize[player_nr];
11230
11231       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
11232       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
11233                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
11234                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
11235       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
11236       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
11237       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
11238       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
11239       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
11240       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
11241       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
11242       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
11243       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
11244       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
11245       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
11246
11247       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
11248       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
11249       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
11250
11251       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
11252     }
11253     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11254     {
11255       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
11256         &level.initial_inventory_content[player_nr][0];
11257
11258       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
11259         &level.initial_inventory_size[player_nr];
11260
11261       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
11262         &level.use_initial_inventory[player_nr];
11263
11264       // draw checkbutton gadgets
11265       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
11266       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
11267       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
11268
11269       // draw counter gadgets
11270       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
11271
11272       // draw drawing area gadgets
11273       DrawPlayerInitialInventoryArea(properties_element);
11274     }
11275   }
11276
11277   if (IS_BD_PLAYER_ELEMENT(properties_element))
11278   {
11279     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11280       ED_ELEMENT_SETTINGS_YPOS(2);
11281     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11282       ED_ELEMENT_SETTINGS_YPOS(3);
11283     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11284       ED_ELEMENT_SETTINGS_YPOS(4);
11285
11286     // draw checkbutton gadgets
11287     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_DIAGONAL_MOVEMENTS);
11288     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_TOPMOST_PLAYER_ACTIVE);
11289     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11290
11291     // draw counter gadgets
11292     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11293     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11294   }
11295
11296   if (properties_element == EL_BD_ROCK && level.game_engine_type == GAME_ENGINE_TYPE_BD)
11297   {
11298     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB].y =
11299       ED_ELEMENT_SETTINGS_YPOS(0);
11300     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11301       ED_ELEMENT_SETTINGS_YPOS(1);
11302
11303     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB);
11304     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11305   }
11306
11307   if (properties_element == EL_BD_MEGA_ROCK ||
11308       properties_element == EL_BD_SWEET)
11309   {
11310     counterbutton_info[ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET].y =
11311       ED_ELEMENT_SETTINGS_YPOS(0);
11312     checkbutton_info[ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET].y =
11313       ED_ELEMENT_SETTINGS_YPOS(1);
11314
11315     MapCounterButtons(ED_COUNTER_ID_BD_PUSHING_PROB_WITH_SWEET);
11316     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_PUSH_MEGA_ROCK_WITH_SWEET);
11317   }
11318
11319   if (properties_element == EL_BD_VOODOO_DOLL)
11320   {
11321     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_COLLECTS_DIAMONDS);
11322     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_HURT_KILLS_PLAYER);
11323     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_DIES_BY_ROCK);
11324     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_VOODOO_VANISH_BY_EXPLOSION);
11325   }
11326
11327   if (properties_element == EL_BD_MAGIC_WALL)
11328   {
11329     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_WAIT_HATCHING);
11330     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BD_MAGIC_WALL_STOPS_AMOEBA);
11331   }
11332
11333   // special case: slippery walls option for gems only available in R'n'D game engine
11334   if (IS_GEM(properties_element) && level.game_engine_type == GAME_ENGINE_TYPE_RND)
11335     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
11336
11337   if (properties_element == EL_EM_DYNAMITE)
11338     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
11339
11340   if (COULD_MOVE_INTO_ACID(properties_element) &&
11341       !IS_PLAYER_ELEMENT(properties_element) &&
11342       (!IS_CUSTOM_ELEMENT(properties_element) ||
11343        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
11344   {
11345     // set position for checkbutton for "can move into acid"
11346     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
11347       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
11348     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
11349       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
11350                                IS_BALLOON_ELEMENT(properties_element) ||
11351                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11352
11353     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
11354   }
11355
11356   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
11357     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
11358
11359   if (properties_element == EL_SPRING ||
11360       properties_element == EL_SPRING_LEFT ||
11361       properties_element == EL_SPRING_RIGHT)
11362     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
11363
11364   if (properties_element == EL_TIME_ORB_FULL)
11365     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
11366
11367   if (properties_element == EL_GAME_OF_LIFE ||
11368       properties_element == EL_BIOMAZE)
11369     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
11370
11371   if (CAN_GROW(properties_element) && level.game_engine_type != GAME_ENGINE_TYPE_BD)
11372   {
11373     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
11374       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
11375
11376     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
11377   }
11378
11379   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
11380     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
11381
11382   if (properties_element == EL_SOKOBAN_OBJECT)
11383     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
11384
11385   if (properties_element == EL_SOKOBAN_OBJECT ||
11386       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
11387       properties_element == EL_SOKOBAN_FIELD_FULL)
11388   {
11389     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
11390       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
11391                                0 : 1);
11392
11393     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
11394   }
11395
11396   if (IS_BALLOON_ELEMENT(properties_element))
11397     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
11398
11399   if (IS_ENVELOPE(properties_element) ||
11400       IS_MM_ENVELOPE(properties_element))
11401   {
11402     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
11403     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
11404     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
11405     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
11406     int envelope_nr = ENVELOPE_NR(properties_element);
11407
11408     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
11409     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
11410
11411     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
11412     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
11413
11414     // display counter to choose size of envelope text area
11415     MapCounterButtons(counter1_id);
11416     MapCounterButtons(counter2_id);
11417
11418     // display checkbuttons to choose auto-wrap and alignment properties
11419     MapCheckbuttonGadget(button1_id);
11420     MapCheckbuttonGadget(button2_id);
11421
11422     DrawEnvelopeTextArea(envelope_nr);
11423   }
11424
11425   if (IS_MM_MCDUFFIN(properties_element))
11426   {
11427     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
11428     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
11429     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
11430   }
11431
11432   if (IS_DF_LASER(properties_element))
11433   {
11434     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
11435     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
11436     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
11437   }
11438
11439   if (IS_CUSTOM_ELEMENT(properties_element))
11440   {
11441     // draw stickybutton gadget
11442     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11443
11444     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
11445     {
11446       // draw checkbutton gadgets
11447       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
11448            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
11449         MapCheckbuttonGadget(i);
11450
11451       // draw counter gadgets
11452       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
11453            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
11454         MapCounterButtons(i);
11455
11456       // draw selectbox gadgets
11457       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
11458            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
11459         MapSelectboxGadget(i);
11460
11461       // draw textbutton gadgets
11462       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11463
11464       // draw text input gadgets
11465       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11466
11467       // draw drawing area gadgets
11468       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11469
11470       draw_footer_line = TRUE;
11471     }
11472     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
11473     {
11474       // draw checkbutton gadgets
11475       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
11476            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
11477         MapCheckbuttonGadget(i);
11478
11479       // draw counter gadgets
11480       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
11481            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
11482         MapCounterButtons(i);
11483
11484       // draw selectbox gadgets
11485       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
11486            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
11487         MapSelectboxGadget(i);
11488
11489       // draw drawing area gadgets
11490       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
11491       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
11492       DrawCustomContentArea();
11493     }
11494   }
11495   else if (IS_GROUP_ELEMENT(properties_element))
11496   {
11497     // draw stickybutton gadget
11498     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11499
11500     // draw checkbutton gadgets
11501     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11502     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11503
11504     // draw counter gadgets
11505     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
11506
11507     // draw selectbox gadgets
11508     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
11509
11510     // draw textbutton gadgets
11511     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11512
11513     // draw drawing area gadgets
11514     DrawGroupElementArea();
11515
11516     // draw text input gadgets
11517     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
11518
11519     // draw drawing area gadgets
11520     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11521
11522     draw_footer_line = TRUE;
11523   }
11524   else if (IS_EMPTY_ELEMENT(properties_element))
11525   {
11526     // draw stickybutton gadget
11527     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11528
11529     // draw checkbutton gadgets
11530     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
11531     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
11532
11533     // draw textbutton gadgets
11534     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
11535
11536     // draw drawing area gadgets
11537     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
11538
11539     draw_footer_line = TRUE;
11540   }
11541
11542   // draw little footer border line above CE/GE use/save template gadgets
11543   if (draw_footer_line)
11544   {
11545     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
11546     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
11547     int gd_x = gd->x + gd_gi1->border.width / 2;
11548     int gd_y = gd->y + gd_gi1->height - 1;
11549     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
11550
11551     if (tab_color != BLACK_PIXEL)               // black => transparent
11552       FillRectangle(drawto,
11553                     SX + ED_ELEMENT_SETTINGS_X(0),
11554                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
11555                     ED_TAB_BAR_HEIGHT,
11556                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
11557   }
11558 }
11559
11560 static void DrawPropertiesChangeDrawingAreas(void)
11561 {
11562   if (IS_CUSTOM_ELEMENT(properties_element))
11563   {
11564     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
11565     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
11566     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
11567
11568     DrawCustomChangeContentArea();
11569   }
11570
11571   redraw_mask |= REDRAW_FIELD;
11572 }
11573
11574 static void DrawPropertiesChange(void)
11575 {
11576   int i;
11577
11578   // needed to initially set selectbox options for special action options
11579   setSelectboxSpecialActionOptions();
11580
11581   // draw stickybutton gadget
11582   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
11583
11584   // draw checkbutton gadgets
11585   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
11586        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
11587     MapCheckbuttonGadget(i);
11588
11589   // draw counter gadgets
11590   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
11591        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
11592     MapCounterButtons(i);
11593
11594   // draw selectbox gadgets
11595   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
11596        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
11597     MapSelectboxGadget(i);
11598
11599   // draw textbutton gadgets
11600   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
11601        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
11602     MapTextbuttonGadget(i);
11603
11604   // draw graphicbutton gadgets
11605   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
11606        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
11607     MapGraphicbuttonGadget(i);
11608
11609   // draw drawing area gadgets
11610   DrawPropertiesChangeDrawingAreas();
11611 }
11612
11613 static void DrawEditorElementAnimation(int x, int y)
11614 {
11615   int graphic = el2img(properties_element);
11616   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
11617                custom_element.ce_value_fixed_initial :
11618                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
11619                custom_element.collect_score_initial : FrameCounter);
11620
11621   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
11622 }
11623
11624 static void DrawEditorElementName(int x, int y, int font_nr)
11625 {
11626   char *element_name = getElementInfoText(properties_element);
11627   int font_width = getFontWidth(font_nr);
11628   int font_height = getFontHeight(font_nr);
11629   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
11630   int max_chars_per_line = max_text_width / font_width;
11631
11632   if (strlen(element_name) <= max_chars_per_line)
11633     DrawTextS(x, y, font_nr, element_name);
11634   else
11635   {
11636     char buffer[max_chars_per_line + 1];
11637     int next_pos = max_chars_per_line;
11638
11639     strncpy(buffer, element_name, max_chars_per_line);
11640     buffer[max_chars_per_line] = '\0';
11641
11642     if (element_name[max_chars_per_line] == ' ')
11643       next_pos++;
11644     else
11645     {
11646       int i;
11647
11648       for (i = max_chars_per_line - 1; i >= 0; i--)
11649         if (buffer[i] == ' ')
11650           break;
11651
11652       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
11653       {
11654         buffer[i] = '\0';
11655         next_pos = i + 1;
11656       }
11657     }
11658
11659     DrawTextS(x, y - font_height / 2, font_nr, buffer);
11660
11661     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
11662     buffer[max_chars_per_line] = '\0';
11663
11664     DrawTextS(x, y + font_height / 2, font_nr, buffer);
11665   }
11666 }
11667
11668 static void DrawPropertiesWindow(void)
11669 {
11670   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
11671   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
11672   int border_size = gd->border_size;
11673   int font_nr = FONT_TEXT_1;
11674   int font_height = getFontHeight(font_nr);
11675   int xoffset = TILEX + element_border + 3 * border_size;
11676   int yoffset = (TILEY - font_height) / 2;
11677   int x1 = editor.settings.element_graphic.x + element_border;
11678   int y1 = editor.settings.element_graphic.y + element_border;
11679   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
11680             editor.settings.element_name.x);
11681   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
11682             editor.settings.element_name.y);
11683   char *text = "Element Settings";
11684   int font2_nr = FONT_TITLE_1;
11685   struct MenuPosInfo *pos = &editor.settings.headline;
11686   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
11687   int sy = SY + pos->y;
11688
11689   stick_element_properties_window = FALSE;
11690
11691   // make sure that previous properties edit mode exists for this element
11692   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
11693       !IS_CUSTOM_ELEMENT(properties_element))
11694     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
11695
11696   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
11697       !IS_PLAYER_ELEMENT(properties_element) &&
11698       !IS_CUSTOM_ELEMENT(properties_element))
11699     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
11700
11701   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
11702       (IS_PLAYER_ELEMENT(properties_element) ||
11703        IS_CUSTOM_ELEMENT(properties_element)))
11704     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
11705
11706   CopyElementPropertiesToEditor(properties_element);
11707
11708   UnmapLevelEditorFieldGadgets();
11709   UnmapLevelEditorToolboxDrawingGadgets();
11710   UnmapLevelEditorToolboxCustomGadgets();
11711
11712   MapLevelEditorToolboxCustomGadgetsIfNeeded();
11713
11714   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11715   ClearField();
11716
11717   DrawText(sx, sy, text, font2_nr);
11718
11719   FrameCounter = 0;     // restart animation frame counter
11720
11721   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
11722   DrawEditorElementAnimation(SX + x1, SY + y1);
11723   DrawEditorElementName(x2, y2, font_nr);
11724
11725   DrawPropertiesTabulatorGadgets();
11726
11727   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
11728     DrawPropertiesInfo();
11729   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
11730     DrawPropertiesChange();
11731   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
11732     DrawPropertiesConfig();
11733 }
11734
11735 static void DrawPaletteWindow(void)
11736 {
11737   int i;
11738
11739   UnmapLevelEditorFieldGadgets();
11740
11741   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
11742   ClearField();
11743
11744   // map buttons to select elements
11745   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
11746     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
11747   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
11748   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
11749   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
11750 }
11751
11752 static void UpdateCustomElementGraphicGadgets(void)
11753 {
11754   int i;
11755
11756   InitElementPropertiesGfxElement();
11757
11758   ModifyEditorElementList();
11759   RedrawDrawingElements();
11760
11761   // force redraw of all mapped drawing area gadgets
11762   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
11763   {
11764     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
11765
11766     if (gi->mapped)
11767       MapDrawingArea(i);
11768   }
11769 }
11770
11771 static int getOpenDirectionFromTube(int element)
11772 {
11773   switch (element)
11774   {
11775     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
11776     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
11777     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
11778     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
11779     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
11780     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
11781     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
11782     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
11783     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
11784     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
11785     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
11786   }
11787
11788   return MV_NONE;
11789 }
11790
11791 static int getTubeFromOpenDirection(int direction)
11792 {
11793   switch (direction)
11794   {
11795     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
11796     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
11797     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
11798     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
11799     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
11800     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
11801     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
11802     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
11803     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
11804     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
11805     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
11806
11807     // if only one direction, fall back to simple tube with that direction
11808     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
11809     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
11810     case (MV_UP):                       return EL_TUBE_VERTICAL;
11811     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
11812   }
11813
11814   return EL_EMPTY;
11815 }
11816
11817 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
11818 {
11819   int element_new = getTubeFromOpenDirection(direction);
11820
11821   return (element_new != EL_EMPTY ? element_new : element_old);
11822 }
11823
11824 static int getOpenDirectionFromBelt(int element)
11825 {
11826   int belt_dir = getBeltDirFromBeltElement(element);
11827
11828   return (belt_dir == MV_LEFT ? MV_RIGHT :
11829           belt_dir == MV_RIGHT ? MV_LEFT :
11830           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
11831 }
11832
11833 static int getBeltFromNrAndOpenDirection(int nr, int direction)
11834 {
11835   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
11836                   direction == MV_RIGHT ? MV_LEFT :
11837                   direction == MV_HORIZONTAL ? MV_NONE : direction);
11838
11839   if (direction == MV_NONE)
11840     return EL_EMPTY;
11841
11842   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
11843 }
11844
11845 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
11846                                                  int element_old)
11847 {
11848   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
11849
11850   return (element_new != EL_EMPTY ? element_new : element_old);
11851 }
11852
11853 static int getOpenDirectionFromPool(int element)
11854 {
11855   switch (element)
11856   {
11857     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
11858     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
11859     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
11860     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
11861     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
11862     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
11863   }
11864
11865   return MV_NONE;
11866 }
11867
11868 static int getPoolFromOpenDirection(int direction)
11869 {
11870   switch (direction)
11871   {
11872     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
11873     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
11874     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
11875     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
11876     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
11877     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
11878   }
11879
11880   return EL_EMPTY;
11881 }
11882
11883 static int getPoolFromOpenDirectionExt(int direction, int help_element)
11884 {
11885   int element = getPoolFromOpenDirection(direction);
11886   int help_direction = getOpenDirectionFromPool(help_element);
11887
11888   if (element == EL_EMPTY)
11889   {
11890     int help_direction_vertical = help_direction & MV_VERTICAL;
11891
11892     element = getPoolFromOpenDirection(direction | help_direction_vertical);
11893   }
11894
11895   if (element == EL_EMPTY)
11896   {
11897     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
11898
11899     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
11900   }
11901
11902   return element;
11903 }
11904
11905 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
11906 {
11907   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
11908
11909   return (element_new != EL_EMPTY ? element_new : element_old);
11910 }
11911
11912 static int getOpenDirectionFromPillar(int element)
11913 {
11914   switch (element)
11915   {
11916     case EL_EMC_WALL_1:                 return (MV_DOWN);
11917     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
11918     case EL_EMC_WALL_3:                 return (MV_UP);
11919   }
11920
11921   return MV_NONE;
11922 }
11923
11924 static int getPillarFromOpenDirection(int direction)
11925 {
11926   switch (direction)
11927   {
11928     case (MV_DOWN):                     return EL_EMC_WALL_1;
11929     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
11930     case (MV_UP):                       return EL_EMC_WALL_3;
11931   }
11932
11933   return EL_EMPTY;
11934 }
11935
11936 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
11937 {
11938   int element_new = getPillarFromOpenDirection(direction);
11939
11940   return (element_new != EL_EMPTY ? element_new : element_old);
11941 }
11942
11943 static int getOpenDirectionFromSteel2(int element)
11944 {
11945   switch (element)
11946   {
11947     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
11948     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
11949     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
11950     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
11951     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
11952     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
11953     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
11954     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
11955   }
11956
11957   return MV_NONE;
11958 }
11959
11960 static int getSteel2FromOpenDirection(int direction)
11961 {
11962   switch (direction)
11963   {
11964     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
11965     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
11966     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
11967     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
11968     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
11969     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
11970     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
11971     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
11972   }
11973
11974   return EL_EMPTY;
11975 }
11976
11977 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
11978 {
11979   int element_new = getSteel2FromOpenDirection(direction);
11980
11981   return (element_new != EL_EMPTY ? element_new : element_old);
11982 }
11983
11984 static int getOpenDirectionFromChip(int element)
11985 {
11986   switch (element)
11987   {
11988     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
11989     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
11990     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
11991     case EL_SP_CHIP_TOP:                return (MV_DOWN);
11992     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
11993   }
11994
11995   return MV_NONE;
11996 }
11997
11998 static int getChipFromOpenDirection(int direction)
11999 {
12000   switch (direction)
12001   {
12002     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
12003     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
12004     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
12005     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
12006     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
12007   }
12008
12009   return EL_EMPTY;
12010 }
12011
12012 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
12013 {
12014   int element_new = getChipFromOpenDirection(direction);
12015
12016   return (element_new != EL_EMPTY ? element_new : element_old);
12017 }
12018
12019 static int getClosedTube(int x, int y)
12020 {
12021   struct XY *xy = xy_directions;
12022   int element_old = IntelliDrawBuffer[x][y];
12023   int direction_old = getOpenDirectionFromTube(element_old);
12024   int direction_new = MV_NONE;
12025   int i;
12026
12027   for (i = 0; i < NUM_DIRECTIONS; i++)
12028   {
12029     int xx = x + xy[i].x;
12030     int yy = y + xy[i].y;
12031     int dir = MV_DIR_FROM_BIT(i);
12032     int dir_opposite = MV_DIR_OPPOSITE(dir);
12033
12034     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
12035         (direction_old & dir) &&
12036         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12037       direction_new |= dir;
12038   }
12039
12040   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
12041 }
12042
12043 static int getClosedBelt(int x, int y)
12044 {
12045   struct XY *xy = xy_directions;
12046   int element_old = IntelliDrawBuffer[x][y];
12047   int nr = getBeltNrFromBeltElement(element_old);
12048   int direction_old = getOpenDirectionFromBelt(element_old);
12049   int direction_new = MV_NONE;
12050   int i;
12051
12052   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12053   {
12054     int xx = x + xy[i].x;
12055     int yy = y + xy[i].y;
12056     int dir = MV_DIR_FROM_BIT(i);
12057     int dir_opposite = MV_DIR_OPPOSITE(dir);
12058
12059     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
12060         (direction_old & dir) &&
12061         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12062       direction_new |= dir;
12063   }
12064
12065   return getBeltFromNrAndOpenDirection(nr, direction_new);
12066 }
12067
12068 static int getClosedPool(int x, int y)
12069 {
12070   struct XY *xy = xy_directions;
12071   int element_old = IntelliDrawBuffer[x][y];
12072   int direction_old = getOpenDirectionFromPool(element_old);
12073   int direction_new = MV_NONE;
12074   int i;
12075
12076   for (i = 0; i < NUM_DIRECTIONS; i++)
12077   {
12078     int xx = x + xy[i].x;
12079     int yy = y + xy[i].y;
12080     int dir = MV_DIR_FROM_BIT(i);
12081     int dir_opposite = MV_DIR_OPPOSITE(dir);
12082
12083     if (IN_LEV_FIELD(xx, yy) &&
12084         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
12085         (direction_old & dir) &&
12086         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12087       direction_new |= dir;
12088   }
12089
12090   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
12091 }
12092
12093 static int getClosedPillar(int x, int y)
12094 {
12095   struct XY *xy = xy_directions;
12096   int element_old = IntelliDrawBuffer[x][y];
12097   int direction_old = getOpenDirectionFromPillar(element_old);
12098   int direction_new = MV_NONE;
12099   int i;
12100
12101   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12102   {
12103     int xx = x + xy[i].x;
12104     int yy = y + xy[i].y;
12105     int dir = MV_DIR_FROM_BIT(i);
12106     int dir_opposite = MV_DIR_OPPOSITE(dir);
12107
12108     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
12109         (direction_old & dir) &&
12110         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12111       direction_new |= dir;
12112   }
12113
12114   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
12115 }
12116
12117 static int getClosedSteel2(int x, int y)
12118 {
12119   struct XY *xy = xy_directions;
12120   int element_old = IntelliDrawBuffer[x][y];
12121   int direction_old = getOpenDirectionFromSteel2(element_old);
12122   int direction_new = MV_NONE;
12123   int i;
12124
12125   for (i = 0; i < NUM_DIRECTIONS; i++)
12126   {
12127     int xx = x + xy[i].x;
12128     int yy = y + xy[i].y;
12129     int dir = MV_DIR_FROM_BIT(i);
12130     int dir_opposite = MV_DIR_OPPOSITE(dir);
12131
12132     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
12133         (direction_old & dir) &&
12134         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12135       direction_new |= dir;
12136   }
12137
12138   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
12139 }
12140
12141 static int getClosedChip(int x, int y)
12142 {
12143   struct XY *xy = xy_directions;
12144   int element_old = IntelliDrawBuffer[x][y];
12145   int direction_old = getOpenDirectionFromChip(element_old);
12146   int direction_new = MV_NONE;
12147   int i;
12148
12149   for (i = 0; i < NUM_DIRECTIONS; i++)
12150   {
12151     int xx = x + xy[i].x;
12152     int yy = y + xy[i].y;
12153     int dir = MV_DIR_FROM_BIT(i);
12154     int dir_opposite = MV_DIR_OPPOSITE(dir);
12155
12156     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
12157         (direction_old & dir) &&
12158         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
12159       direction_new |= dir;
12160   }
12161
12162   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
12163 }
12164
12165 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
12166                                 boolean change_level)
12167 {
12168   int sx = x - level_xpos;
12169   int sy = y - level_ypos;
12170   int old_element = Tile[x][y];
12171   int new_element = element;
12172   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
12173   boolean draw_masked = FALSE;
12174
12175   if (IS_MM_WALL_EDITOR(element))
12176   {
12177     element = map_mm_wall_element_editor(element) | new_bitmask;
12178
12179     if (IS_MM_WALL(old_element))
12180       element |= MM_WALL_BITS(old_element);
12181
12182     if (!change_level)
12183       draw_masked = TRUE;
12184   }
12185   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
12186   {
12187     int element_changed = old_element & ~new_bitmask;
12188
12189     if (MM_WALL_BITS(element_changed) != 0)
12190       element = element_changed;
12191   }
12192
12193   IntelliDrawBuffer[x][y] = element;
12194
12195   if (change_level)
12196     Tile[x][y] = element;
12197
12198   if (IN_ED_FIELD(sx, sy))
12199   {
12200     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
12201       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
12202     else if (draw_masked)
12203       DrawEditorElementThruMask(sx, sy, element);
12204     else
12205       DrawEditorElement(sx, sy, element);
12206   }
12207 }
12208
12209 static void SetElementSimple(int x, int y, int element, boolean change_level)
12210 {
12211   SetElementSimpleExt(x, y, 0, 0, element, change_level);
12212 }
12213
12214 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
12215                                            int x2, int y2, int *element2,
12216                                            int (*close_function)(int, int),
12217                                            boolean change_level)
12218 {
12219   // set neighbour elements to newly determined connections
12220   SetElementSimple(x1, y1, *element1, change_level);
12221   SetElementSimple(x2, y2, *element2, change_level);
12222
12223   // remove all open connections of neighbour elements
12224   *element1 = close_function(x1, y1);
12225   *element2 = close_function(x2, y2);
12226
12227   // set neighbour elements to new, minimized connections
12228   SetElementSimple(x1, y1, *element1, change_level);
12229   SetElementSimple(x2, y2, *element2, change_level);
12230 }
12231
12232 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
12233                                   boolean change_level, int button)
12234 {
12235   struct XY *xy = xy_directions;
12236   static int last_x = -1;
12237   static int last_y = -1;
12238
12239   if (new_element == EL_UNDEFINED)
12240   {
12241     last_x = -1;
12242     last_y = -1;
12243
12244     return;
12245   }
12246
12247   int old_element = IntelliDrawBuffer[x][y];
12248
12249   if (IS_TUBE(new_element))
12250   {
12251     int last_element_new = EL_UNDEFINED;
12252     int direction = MV_NONE;
12253     int i;
12254
12255     // if old element is of same kind, keep all existing directions
12256     if (IS_TUBE(old_element))
12257       direction |= getOpenDirectionFromTube(old_element);
12258
12259     for (i = 0; i < NUM_DIRECTIONS; i++)
12260     {
12261       int xx = x + xy[i].x;
12262       int yy = y + xy[i].y;
12263
12264       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12265           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
12266       {
12267         int dir = MV_DIR_FROM_BIT(i);
12268         int dir_opposite = MV_DIR_OPPOSITE(dir);
12269         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12270         int last_direction_old = getOpenDirectionFromTube(last_element_old);
12271         int last_direction_new = last_direction_old | dir_opposite;
12272
12273         last_element_new = getTubeFromOpenDirection(last_direction_new);
12274
12275         direction |= dir;
12276       }
12277     }
12278
12279     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
12280
12281     if (last_element_new != EL_UNDEFINED)
12282       MergeAndCloseNeighbourElements(x, y, &new_element,
12283                                      last_x, last_y, &last_element_new,
12284                                      getClosedTube, change_level);
12285   }
12286   else if (IS_BELT(new_element))
12287   {
12288     int belt_nr = getBeltNrFromBeltElement(new_element);
12289     int last_element_new = EL_UNDEFINED;
12290     int direction = MV_NONE;
12291     int i;
12292
12293     // if old element is of same kind, keep all existing directions
12294     if (IS_BELT(old_element))
12295       direction |= getOpenDirectionFromBelt(old_element);
12296
12297     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
12298     {
12299       int xx = x + xy[i].x;
12300       int yy = y + xy[i].y;
12301
12302       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12303           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
12304       {
12305         int dir = MV_DIR_FROM_BIT(i);
12306         int dir_opposite = MV_DIR_OPPOSITE(dir);
12307         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12308         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
12309         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
12310         int last_direction_new = last_direction_old | dir_opposite;
12311
12312         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
12313                                                          last_direction_new);
12314         direction |= dir;
12315       }
12316     }
12317
12318     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
12319                                                         new_element);
12320     if (last_element_new != EL_UNDEFINED)
12321       MergeAndCloseNeighbourElements(x, y, &new_element,
12322                                      last_x, last_y, &last_element_new,
12323                                      getClosedBelt, change_level);
12324   }
12325   else if (IS_ACID_POOL_OR_ACID(new_element))
12326   {
12327     int last_element_new = EL_UNDEFINED;
12328     int direction = MV_NONE;
12329     int i;
12330
12331     // if old element is of same kind, keep all existing directions
12332     if (IS_ACID_POOL_OR_ACID(old_element))
12333       direction |= getOpenDirectionFromPool(old_element);
12334
12335     for (i = 0; i < NUM_DIRECTIONS; i++)
12336     {
12337       int xx = x + xy[i].x;
12338       int yy = y + xy[i].y;
12339
12340       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12341           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
12342       {
12343         int dir = MV_DIR_FROM_BIT(i);
12344         int dir_opposite = MV_DIR_OPPOSITE(dir);
12345         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12346         int last_direction_old = getOpenDirectionFromPool(last_element_old);
12347         int last_direction_new = last_direction_old | dir_opposite;
12348
12349         last_element_new = getPoolFromOpenDirection(last_direction_new);
12350
12351         direction |= dir;
12352       }
12353     }
12354
12355     // special corrections needed for intuitively correct acid pool drawing
12356     if (last_element_new == EL_EMPTY)
12357       last_element_new = new_element;
12358     else if (last_element_new != EL_UNDEFINED)
12359       new_element = last_element_new;
12360
12361     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
12362
12363     if (last_element_new != EL_UNDEFINED)
12364       MergeAndCloseNeighbourElements(x, y, &new_element,
12365                                      last_x, last_y, &last_element_new,
12366                                      getClosedPool, change_level);
12367   }
12368   else if (IS_EMC_PILLAR(new_element))
12369   {
12370     int last_element_new = EL_UNDEFINED;
12371     int direction = MV_NONE;
12372     int i;
12373
12374     // if old element is of same kind, keep all existing directions
12375     if (IS_EMC_PILLAR(old_element))
12376       direction |= getOpenDirectionFromPillar(old_element);
12377
12378     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
12379     {
12380       int xx = x + xy[i].x;
12381       int yy = y + xy[i].y;
12382
12383       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12384           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
12385       {
12386         int dir = MV_DIR_FROM_BIT(i);
12387         int dir_opposite = MV_DIR_OPPOSITE(dir);
12388         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12389         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
12390         int last_direction_new = last_direction_old | dir_opposite;
12391
12392         last_element_new = getPillarFromOpenDirection(last_direction_new);
12393
12394         direction |= dir;
12395       }
12396     }
12397
12398     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
12399
12400     if (last_element_new != EL_UNDEFINED)
12401       MergeAndCloseNeighbourElements(x, y, &new_element,
12402                                      last_x, last_y, &last_element_new,
12403                                      getClosedPillar, change_level);
12404   }
12405   else if (IS_DC_STEELWALL_2(new_element))
12406   {
12407     int last_element_new = EL_UNDEFINED;
12408     int direction = MV_NONE;
12409     int i;
12410
12411     // if old element is of same kind, keep all existing directions
12412     if (IS_DC_STEELWALL_2(old_element))
12413       direction |= getOpenDirectionFromSteel2(old_element);
12414
12415     for (i = 0; i < NUM_DIRECTIONS; i++)
12416     {
12417       int xx = x + xy[i].x;
12418       int yy = y + xy[i].y;
12419
12420       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12421           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
12422       {
12423         int dir = MV_DIR_FROM_BIT(i);
12424         int dir_opposite = MV_DIR_OPPOSITE(dir);
12425         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12426         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
12427         int last_direction_new = last_direction_old | dir_opposite;
12428
12429         last_element_new = getSteel2FromOpenDirection(last_direction_new);
12430
12431         direction |= dir;
12432       }
12433     }
12434
12435     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
12436
12437     if (last_element_new != EL_UNDEFINED)
12438       MergeAndCloseNeighbourElements(x, y, &new_element,
12439                                      last_x, last_y, &last_element_new,
12440                                      getClosedSteel2, change_level);
12441   }
12442   else if (IS_SP_CHIP(new_element))
12443   {
12444     int last_element_new = EL_UNDEFINED;
12445     int direction = MV_NONE;
12446     int i;
12447
12448     // (do not keep existing directions, regardless of kind of old element)
12449
12450     for (i = 0; i < NUM_DIRECTIONS; i++)
12451     {
12452       int xx = x + xy[i].x;
12453       int yy = y + xy[i].y;
12454
12455       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12456           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
12457       {
12458         int dir = MV_DIR_FROM_BIT(i);
12459         int dir_opposite = MV_DIR_OPPOSITE(dir);
12460         int last_element_old = IntelliDrawBuffer[last_x][last_y];
12461         int last_direction_old = getOpenDirectionFromChip(last_element_old);
12462         int last_direction_new = last_direction_old | dir_opposite;
12463
12464         if (last_direction_old == MV_NONE)
12465         {
12466           last_element_new = getChipFromOpenDirection(last_direction_new);
12467           direction |= dir;
12468         }
12469         else if (last_direction_old & (dir | dir_opposite))
12470         {
12471           direction |= MV_DIR_OPPOSITE(last_direction_old);
12472         }
12473         else
12474         {
12475           direction |= MV_DIR_OPPOSITE(dir);
12476         }
12477       }
12478     }
12479
12480     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
12481
12482     if (last_element_new != EL_UNDEFINED)
12483       MergeAndCloseNeighbourElements(x, y, &new_element,
12484                                      last_x, last_y, &last_element_new,
12485                                      getClosedChip, change_level);
12486   }
12487   else if (IS_SP_HARDWARE_BASE(new_element))
12488   {
12489     int nr = GetSimpleRandom(6);
12490
12491     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
12492                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
12493                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
12494                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
12495                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
12496   }
12497   else if (new_element == EL_SP_HARDWARE_GREEN ||
12498            new_element == EL_SP_HARDWARE_BLUE ||
12499            new_element == EL_SP_HARDWARE_RED)
12500   {
12501     int nr = GetSimpleRandom(3);
12502
12503     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
12504                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
12505   }
12506   else if (IS_GROUP_ELEMENT(new_element))
12507   {
12508     boolean connected_drawing = FALSE;
12509     int i;
12510
12511     for (i = 0; i < NUM_DIRECTIONS; i++)
12512     {
12513       int xx = x + xy[i].x;
12514       int yy = y + xy[i].y;
12515
12516       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
12517           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
12518         connected_drawing = TRUE;
12519     }
12520
12521     if (!connected_drawing)
12522       ResolveGroupElement(new_element);
12523
12524     new_element = GetElementFromGroupElement(new_element);
12525   }
12526   else if (IS_BELT_SWITCH(old_element))
12527   {
12528     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
12529     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
12530
12531     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
12532                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
12533
12534     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
12535   }
12536   else
12537   {
12538     static int swappable_elements[][2] =
12539     {
12540       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
12541       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
12542       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
12543       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
12544       { EL_EMERALD,                     EL_WALL_EMERALD                 },
12545       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
12546       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
12547       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
12548       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
12549       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
12550       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
12551       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
12552       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
12553       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
12554       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
12555       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
12556       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
12557       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
12558       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
12559       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
12560       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
12561       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
12562       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
12563       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
12564       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
12565       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
12566       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
12567       { EL_PEARL,                       EL_WALL_PEARL                   },
12568       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
12569       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
12570       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
12571       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
12572       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
12573       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
12574       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
12575       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
12576       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
12577       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
12578       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
12579       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
12580       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
12581       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
12582       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
12583       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
12584
12585       { -1,                             -1                              },
12586     };
12587     static int rotatable_elements_4[][4] =
12588     {
12589       {
12590         EL_BUG_UP,
12591         EL_BUG_RIGHT,
12592         EL_BUG_DOWN,
12593         EL_BUG_LEFT
12594       },
12595       {
12596         EL_SPACESHIP_UP,
12597         EL_SPACESHIP_RIGHT,
12598         EL_SPACESHIP_DOWN,
12599         EL_SPACESHIP_LEFT
12600       },
12601       {
12602         EL_BD_BUTTERFLY_UP,
12603         EL_BD_BUTTERFLY_RIGHT,
12604         EL_BD_BUTTERFLY_DOWN,
12605         EL_BD_BUTTERFLY_LEFT
12606       },
12607       {
12608         EL_BD_FIREFLY_UP,
12609         EL_BD_FIREFLY_RIGHT,
12610         EL_BD_FIREFLY_DOWN,
12611         EL_BD_FIREFLY_LEFT
12612       },
12613       {
12614         EL_PACMAN_UP,
12615         EL_PACMAN_RIGHT,
12616         EL_PACMAN_DOWN,
12617         EL_PACMAN_LEFT
12618       },
12619       {
12620         EL_YAMYAM_UP,
12621         EL_YAMYAM_RIGHT,
12622         EL_YAMYAM_DOWN,
12623         EL_YAMYAM_LEFT
12624       },
12625       {
12626         EL_ARROW_UP,
12627         EL_ARROW_RIGHT,
12628         EL_ARROW_DOWN,
12629         EL_ARROW_LEFT
12630       },
12631       {
12632         EL_SP_PORT_UP,
12633         EL_SP_PORT_RIGHT,
12634         EL_SP_PORT_DOWN,
12635         EL_SP_PORT_LEFT
12636       },
12637       {
12638         EL_SP_GRAVITY_PORT_UP,
12639         EL_SP_GRAVITY_PORT_RIGHT,
12640         EL_SP_GRAVITY_PORT_DOWN,
12641         EL_SP_GRAVITY_PORT_LEFT
12642       },
12643       {
12644         EL_SP_GRAVITY_ON_PORT_UP,
12645         EL_SP_GRAVITY_ON_PORT_RIGHT,
12646         EL_SP_GRAVITY_ON_PORT_DOWN,
12647         EL_SP_GRAVITY_ON_PORT_LEFT
12648       },
12649       {
12650         EL_SP_GRAVITY_OFF_PORT_UP,
12651         EL_SP_GRAVITY_OFF_PORT_RIGHT,
12652         EL_SP_GRAVITY_OFF_PORT_DOWN,
12653         EL_SP_GRAVITY_OFF_PORT_LEFT
12654       },
12655       {
12656         EL_MOLE_UP,
12657         EL_MOLE_RIGHT,
12658         EL_MOLE_DOWN,
12659         EL_MOLE_LEFT
12660       },
12661       {
12662         EL_BALLOON_SWITCH_UP,
12663         EL_BALLOON_SWITCH_RIGHT,
12664         EL_BALLOON_SWITCH_DOWN,
12665         EL_BALLOON_SWITCH_LEFT
12666       },
12667       {
12668         EL_MM_MCDUFFIN_UP,
12669         EL_MM_MCDUFFIN_RIGHT,
12670         EL_MM_MCDUFFIN_DOWN,
12671         EL_MM_MCDUFFIN_LEFT
12672       },
12673       {
12674         EL_MM_MIRROR_FIXED_1,
12675         EL_MM_MIRROR_FIXED_4,
12676         EL_MM_MIRROR_FIXED_3,
12677         EL_MM_MIRROR_FIXED_2
12678       },
12679       {
12680         EL_MM_STEEL_GRID_FIXED_1,
12681         EL_MM_STEEL_GRID_FIXED_4,
12682         EL_MM_STEEL_GRID_FIXED_2,
12683         EL_MM_STEEL_GRID_FIXED_3
12684       },
12685       {
12686         EL_MM_WOODEN_GRID_FIXED_1,
12687         EL_MM_WOODEN_GRID_FIXED_4,
12688         EL_MM_WOODEN_GRID_FIXED_2,
12689         EL_MM_WOODEN_GRID_FIXED_3
12690       },
12691       {
12692         EL_MM_POLARIZER_CROSS_1,
12693         EL_MM_POLARIZER_CROSS_4,
12694         EL_MM_POLARIZER_CROSS_3,
12695         EL_MM_POLARIZER_CROSS_2
12696       },
12697       {
12698         EL_MM_PACMAN_UP,
12699         EL_MM_PACMAN_RIGHT,
12700         EL_MM_PACMAN_DOWN,
12701         EL_MM_PACMAN_LEFT
12702       },
12703       {
12704         EL_DF_LASER_UP,
12705         EL_DF_LASER_RIGHT,
12706         EL_DF_LASER_DOWN,
12707         EL_DF_LASER_LEFT
12708       },
12709       {
12710         EL_DF_RECEIVER_UP,
12711         EL_DF_RECEIVER_RIGHT,
12712         EL_DF_RECEIVER_DOWN,
12713         EL_DF_RECEIVER_LEFT
12714       },
12715       {
12716         EL_DF_SLOPE_1,
12717         EL_DF_SLOPE_4,
12718         EL_DF_SLOPE_3,
12719         EL_DF_SLOPE_2
12720       },
12721
12722       {
12723         -1,
12724       },
12725     };
12726     static int rotatable_elements_8[][8] =
12727     {
12728       {
12729         EL_DF_STEEL_GRID_FIXED_1,
12730         EL_DF_STEEL_GRID_FIXED_8,
12731         EL_DF_STEEL_GRID_FIXED_7,
12732         EL_DF_STEEL_GRID_FIXED_6,
12733         EL_DF_STEEL_GRID_FIXED_5,
12734         EL_DF_STEEL_GRID_FIXED_4,
12735         EL_DF_STEEL_GRID_FIXED_3,
12736         EL_DF_STEEL_GRID_FIXED_2
12737       },
12738       {
12739         EL_DF_WOODEN_GRID_FIXED_1,
12740         EL_DF_WOODEN_GRID_FIXED_8,
12741         EL_DF_WOODEN_GRID_FIXED_7,
12742         EL_DF_WOODEN_GRID_FIXED_6,
12743         EL_DF_WOODEN_GRID_FIXED_5,
12744         EL_DF_WOODEN_GRID_FIXED_4,
12745         EL_DF_WOODEN_GRID_FIXED_3,
12746         EL_DF_WOODEN_GRID_FIXED_2
12747       },
12748       {
12749         EL_DF_STEEL_GRID_ROTATING_1,
12750         EL_DF_STEEL_GRID_ROTATING_8,
12751         EL_DF_STEEL_GRID_ROTATING_7,
12752         EL_DF_STEEL_GRID_ROTATING_6,
12753         EL_DF_STEEL_GRID_ROTATING_5,
12754         EL_DF_STEEL_GRID_ROTATING_4,
12755         EL_DF_STEEL_GRID_ROTATING_3,
12756         EL_DF_STEEL_GRID_ROTATING_2
12757       },
12758       {
12759         EL_DF_WOODEN_GRID_ROTATING_1,
12760         EL_DF_WOODEN_GRID_ROTATING_8,
12761         EL_DF_WOODEN_GRID_ROTATING_7,
12762         EL_DF_WOODEN_GRID_ROTATING_6,
12763         EL_DF_WOODEN_GRID_ROTATING_5,
12764         EL_DF_WOODEN_GRID_ROTATING_4,
12765         EL_DF_WOODEN_GRID_ROTATING_3,
12766         EL_DF_WOODEN_GRID_ROTATING_2
12767       },
12768
12769       {
12770         -1,
12771       },
12772     };
12773     static int rotatable_elements_16[][16] =
12774     {
12775       {
12776         EL_MM_MIRROR_1,
12777         EL_MM_MIRROR_16,
12778         EL_MM_MIRROR_15,
12779         EL_MM_MIRROR_14,
12780         EL_MM_MIRROR_13,
12781         EL_MM_MIRROR_12,
12782         EL_MM_MIRROR_11,
12783         EL_MM_MIRROR_10,
12784         EL_MM_MIRROR_9,
12785         EL_MM_MIRROR_8,
12786         EL_MM_MIRROR_7,
12787         EL_MM_MIRROR_6,
12788         EL_MM_MIRROR_5,
12789         EL_MM_MIRROR_4,
12790         EL_MM_MIRROR_3,
12791         EL_MM_MIRROR_2
12792       },
12793       {
12794         EL_MM_TELEPORTER_5,
12795         EL_MM_TELEPORTER_4,
12796         EL_MM_TELEPORTER_3,
12797         EL_MM_TELEPORTER_2,
12798         EL_MM_TELEPORTER_1,
12799         EL_MM_TELEPORTER_16,
12800         EL_MM_TELEPORTER_15,
12801         EL_MM_TELEPORTER_14,
12802         EL_MM_TELEPORTER_13,
12803         EL_MM_TELEPORTER_12,
12804         EL_MM_TELEPORTER_11,
12805         EL_MM_TELEPORTER_10,
12806         EL_MM_TELEPORTER_9,
12807         EL_MM_TELEPORTER_8,
12808         EL_MM_TELEPORTER_7,
12809         EL_MM_TELEPORTER_6
12810       },
12811       {
12812         EL_MM_TELEPORTER_RED_5,
12813         EL_MM_TELEPORTER_RED_4,
12814         EL_MM_TELEPORTER_RED_3,
12815         EL_MM_TELEPORTER_RED_2,
12816         EL_MM_TELEPORTER_RED_1,
12817         EL_MM_TELEPORTER_RED_16,
12818         EL_MM_TELEPORTER_RED_15,
12819         EL_MM_TELEPORTER_RED_14,
12820         EL_MM_TELEPORTER_RED_13,
12821         EL_MM_TELEPORTER_RED_12,
12822         EL_MM_TELEPORTER_RED_11,
12823         EL_MM_TELEPORTER_RED_10,
12824         EL_MM_TELEPORTER_RED_9,
12825         EL_MM_TELEPORTER_RED_8,
12826         EL_MM_TELEPORTER_RED_7,
12827         EL_MM_TELEPORTER_RED_6
12828       },
12829       {
12830         EL_MM_TELEPORTER_YELLOW_5,
12831         EL_MM_TELEPORTER_YELLOW_4,
12832         EL_MM_TELEPORTER_YELLOW_3,
12833         EL_MM_TELEPORTER_YELLOW_2,
12834         EL_MM_TELEPORTER_YELLOW_1,
12835         EL_MM_TELEPORTER_YELLOW_16,
12836         EL_MM_TELEPORTER_YELLOW_15,
12837         EL_MM_TELEPORTER_YELLOW_14,
12838         EL_MM_TELEPORTER_YELLOW_13,
12839         EL_MM_TELEPORTER_YELLOW_12,
12840         EL_MM_TELEPORTER_YELLOW_11,
12841         EL_MM_TELEPORTER_YELLOW_10,
12842         EL_MM_TELEPORTER_YELLOW_9,
12843         EL_MM_TELEPORTER_YELLOW_8,
12844         EL_MM_TELEPORTER_YELLOW_7,
12845         EL_MM_TELEPORTER_YELLOW_6
12846       },
12847       {
12848         EL_MM_TELEPORTER_GREEN_5,
12849         EL_MM_TELEPORTER_GREEN_4,
12850         EL_MM_TELEPORTER_GREEN_3,
12851         EL_MM_TELEPORTER_GREEN_2,
12852         EL_MM_TELEPORTER_GREEN_1,
12853         EL_MM_TELEPORTER_GREEN_16,
12854         EL_MM_TELEPORTER_GREEN_15,
12855         EL_MM_TELEPORTER_GREEN_14,
12856         EL_MM_TELEPORTER_GREEN_13,
12857         EL_MM_TELEPORTER_GREEN_12,
12858         EL_MM_TELEPORTER_GREEN_11,
12859         EL_MM_TELEPORTER_GREEN_10,
12860         EL_MM_TELEPORTER_GREEN_9,
12861         EL_MM_TELEPORTER_GREEN_8,
12862         EL_MM_TELEPORTER_GREEN_7,
12863         EL_MM_TELEPORTER_GREEN_6
12864       },
12865       {
12866         EL_MM_TELEPORTER_BLUE_5,
12867         EL_MM_TELEPORTER_BLUE_4,
12868         EL_MM_TELEPORTER_BLUE_3,
12869         EL_MM_TELEPORTER_BLUE_2,
12870         EL_MM_TELEPORTER_BLUE_1,
12871         EL_MM_TELEPORTER_BLUE_16,
12872         EL_MM_TELEPORTER_BLUE_15,
12873         EL_MM_TELEPORTER_BLUE_14,
12874         EL_MM_TELEPORTER_BLUE_13,
12875         EL_MM_TELEPORTER_BLUE_12,
12876         EL_MM_TELEPORTER_BLUE_11,
12877         EL_MM_TELEPORTER_BLUE_10,
12878         EL_MM_TELEPORTER_BLUE_9,
12879         EL_MM_TELEPORTER_BLUE_8,
12880         EL_MM_TELEPORTER_BLUE_7,
12881         EL_MM_TELEPORTER_BLUE_6
12882       },
12883       {
12884         EL_MM_POLARIZER_1,
12885         EL_MM_POLARIZER_16,
12886         EL_MM_POLARIZER_15,
12887         EL_MM_POLARIZER_14,
12888         EL_MM_POLARIZER_13,
12889         EL_MM_POLARIZER_12,
12890         EL_MM_POLARIZER_11,
12891         EL_MM_POLARIZER_10,
12892         EL_MM_POLARIZER_9,
12893         EL_MM_POLARIZER_8,
12894         EL_MM_POLARIZER_7,
12895         EL_MM_POLARIZER_6,
12896         EL_MM_POLARIZER_5,
12897         EL_MM_POLARIZER_4,
12898         EL_MM_POLARIZER_3,
12899         EL_MM_POLARIZER_2
12900       },
12901       {
12902         EL_DF_MIRROR_1,
12903         EL_DF_MIRROR_16,
12904         EL_DF_MIRROR_15,
12905         EL_DF_MIRROR_14,
12906         EL_DF_MIRROR_13,
12907         EL_DF_MIRROR_12,
12908         EL_DF_MIRROR_11,
12909         EL_DF_MIRROR_10,
12910         EL_DF_MIRROR_9,
12911         EL_DF_MIRROR_8,
12912         EL_DF_MIRROR_7,
12913         EL_DF_MIRROR_6,
12914         EL_DF_MIRROR_5,
12915         EL_DF_MIRROR_4,
12916         EL_DF_MIRROR_3,
12917         EL_DF_MIRROR_2
12918       },
12919       {
12920         EL_DF_MIRROR_ROTATING_1,
12921         EL_DF_MIRROR_ROTATING_16,
12922         EL_DF_MIRROR_ROTATING_15,
12923         EL_DF_MIRROR_ROTATING_14,
12924         EL_DF_MIRROR_ROTATING_13,
12925         EL_DF_MIRROR_ROTATING_12,
12926         EL_DF_MIRROR_ROTATING_11,
12927         EL_DF_MIRROR_ROTATING_10,
12928         EL_DF_MIRROR_ROTATING_9,
12929         EL_DF_MIRROR_ROTATING_8,
12930         EL_DF_MIRROR_ROTATING_7,
12931         EL_DF_MIRROR_ROTATING_6,
12932         EL_DF_MIRROR_ROTATING_5,
12933         EL_DF_MIRROR_ROTATING_4,
12934         EL_DF_MIRROR_ROTATING_3,
12935         EL_DF_MIRROR_ROTATING_2
12936       },
12937       {
12938         EL_DF_MIRROR_FIXED_1,
12939         EL_DF_MIRROR_FIXED_16,
12940         EL_DF_MIRROR_FIXED_15,
12941         EL_DF_MIRROR_FIXED_14,
12942         EL_DF_MIRROR_FIXED_13,
12943         EL_DF_MIRROR_FIXED_12,
12944         EL_DF_MIRROR_FIXED_11,
12945         EL_DF_MIRROR_FIXED_10,
12946         EL_DF_MIRROR_FIXED_9,
12947         EL_DF_MIRROR_FIXED_8,
12948         EL_DF_MIRROR_FIXED_7,
12949         EL_DF_MIRROR_FIXED_6,
12950         EL_DF_MIRROR_FIXED_5,
12951         EL_DF_MIRROR_FIXED_4,
12952         EL_DF_MIRROR_FIXED_3,
12953         EL_DF_MIRROR_FIXED_2
12954       },
12955
12956       {
12957         -1,
12958       },
12959     };
12960     int i, j;
12961
12962     for (i = 0; swappable_elements[i][0] != -1; i++)
12963     {
12964       int element1 = swappable_elements[i][0];
12965       int element2 = swappable_elements[i][1];
12966
12967       if (old_element == element1 || old_element == element2)
12968         new_element = (old_element == element1 ? element2 : element1);
12969     }
12970
12971     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
12972     {
12973       for (j = 0; j < 4; j++)
12974       {
12975         int element = rotatable_elements_4[i][j];
12976
12977         if (old_element == element)
12978           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
12979                          button == 2 ? rotatable_elements_4[i][0]           :
12980                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
12981                          old_element);
12982       }
12983     }
12984
12985     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
12986     {
12987       for (j = 0; j < 8; j++)
12988       {
12989         int element = rotatable_elements_8[i][j];
12990
12991         if (old_element == element)
12992           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
12993                          button == 2 ? rotatable_elements_8[i][0]           :
12994                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
12995                          old_element);
12996       }
12997     }
12998
12999     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
13000     {
13001       for (j = 0; j < 16; j++)
13002       {
13003         int element = rotatable_elements_16[i][j];
13004
13005         if (old_element == element)
13006           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
13007                          button == 2 ? rotatable_elements_16[i][0]             :
13008                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
13009                          old_element);
13010       }
13011     }
13012
13013     if (old_element != new_element)
13014     {
13015       int max_infotext_len = getMaxInfoTextLength();
13016       char infotext[MAX_OUTPUT_LINESIZE + 1];
13017
13018       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
13019       infotext[max_infotext_len] = '\0';
13020
13021       ClearEditorGadgetInfoText();
13022
13023       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
13024                 infotext);
13025     }
13026   }
13027
13028   if (IS_MM_WALL_EDITOR(new_element))
13029     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
13030   else
13031     SetElementSimple(x, y, new_element, change_level);
13032
13033   last_x = x;
13034   last_y = y;
13035 }
13036
13037 static void ResetIntelliDraw(void)
13038 {
13039   int x, y;
13040
13041   for (x = 0; x < lev_fieldx; x++)
13042     for (y = 0; y < lev_fieldy; y++)
13043       IntelliDrawBuffer[x][y] = Tile[x][y];
13044
13045   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
13046 }
13047
13048 static boolean draw_mode_hires = FALSE;
13049
13050 static boolean isHiresTileElement(int element)
13051 {
13052   return (IS_MM_WALL(element)        || element == EL_EMPTY);
13053 }
13054
13055 static boolean isHiresDrawElement(int element)
13056 {
13057   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
13058 }
13059
13060 static int numHiresTiles(int element)
13061 {
13062   if (IS_MM_WALL(element))
13063     return get_number_of_bits(MM_WALL_BITS(element));
13064
13065   return 1;
13066 }
13067
13068 static void SetDrawModeHiRes(int element)
13069 {
13070   draw_mode_hires =
13071     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13072      isHiresDrawElement(element));
13073 }
13074
13075 static boolean getDrawModeHiRes(void)
13076 {
13077   return draw_mode_hires;
13078 }
13079
13080 static int getLoResScreenPos(int pos)
13081 {
13082   return (getDrawModeHiRes() ? pos / 2 : pos);
13083 }
13084
13085 static int getLoResScreenMod(int pos)
13086 {
13087   return (getDrawModeHiRes() ? pos % 2 : 0);
13088 }
13089
13090 static void SetElementExt(int x, int y, int dx, int dy, int element,
13091                           boolean change_level, int button)
13092 {
13093   if (element < 0)
13094     SetElementSimple(x, y, Tile[x][y], change_level);
13095   else if (GetKeyModState() & KMOD_Shift)
13096     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
13097   else
13098     SetElementSimpleExt(x, y, dx, dy, element, change_level);
13099 }
13100
13101 static void SetElement(int x, int y, int element)
13102 {
13103   SetElementExt(x, y, 0, 0, element, TRUE, -1);
13104 }
13105
13106 static void SetElementButton(int x, int y, int dx, int dy, int element,
13107                              int button)
13108 {
13109   SetElementExt(x, y, dx, dy, element, TRUE, button);
13110 }
13111
13112 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
13113 {
13114   int lx = getLoResScreenPos(sx2) + level_xpos;
13115   int ly = getLoResScreenPos(sy2) + level_ypos;
13116   int dx = getLoResScreenMod(sx2);
13117   int dy = getLoResScreenMod(sy2);
13118
13119   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
13120 }
13121
13122 static void SetLevelElementHiRes(int lx2, int ly2, int element)
13123 {
13124   int lx = lx2 / 2;
13125   int ly = ly2 / 2;
13126   int dx = lx2 % 2;
13127   int dy = ly2 % 2;
13128
13129   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
13130 }
13131
13132 static int getLevelElementHiRes(int lx2, int ly2)
13133 {
13134   int lx = lx2 / 2;
13135   int ly = ly2 / 2;
13136   int dx = lx2 % 2;
13137   int dy = ly2 % 2;
13138   int element = Tile[lx][ly];
13139   unsigned int bitmask = (dx + 1) << (dy * 2);
13140
13141   if (IS_MM_WALL(element))
13142   {
13143     if (element & bitmask)
13144       return map_mm_wall_element(element);
13145     else
13146       return EL_EMPTY;
13147   }
13148
13149   return element;
13150 }
13151
13152 static void DrawLineElement(int x, int y, int element, boolean change_level)
13153 {
13154   SetElementHiRes(x, y, element, change_level);
13155 }
13156
13157 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
13158                      int element, boolean change_level)
13159 {
13160   int xsize = ABS(to_x - from_x);
13161   int ysize = ABS(to_y - from_y);
13162   int dx = (to_x < from_x ? -1 : +1);
13163   int dy = (to_y < from_y ? -1 : +1);
13164   int i;
13165
13166   if (from_y == to_y)                   // horizontal line
13167   {
13168     for (i = 0; i <= xsize; i++)
13169       DrawLineElement(from_x + i * dx, from_y, element, change_level);
13170   }
13171   else if (from_x == to_x)              // vertical line
13172   {
13173     for (i = 0; i <= ysize; i++)
13174       DrawLineElement(from_x, from_y + i * dy, element, change_level);
13175   }
13176   else                                  // diagonal line
13177   {
13178     if (ysize < xsize)                  // a < 1
13179     {
13180       float a = (float)ysize / (float)xsize;
13181
13182       for (i = 0; i <= xsize; i++)
13183       {
13184         int x = dx * i;
13185         int y = dy * (int)(a * i + 0.5);
13186
13187         DrawLineElement(from_x + x, from_y + y, element, change_level);
13188       }
13189     }
13190     else                                // a >= 1
13191     {
13192       float a = (float)xsize / (float)ysize;
13193
13194       for (i = 0; i <= ysize; i++)
13195       {
13196         int x = dx * (int)(a * i + 0.5);
13197         int y = dy * i;
13198
13199         DrawLineElement(from_x + x, from_y + y, element, change_level);
13200       }
13201     }
13202   }
13203 }
13204
13205 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
13206                     int element, boolean change_level)
13207 {
13208   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
13209   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
13210   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
13211   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
13212 }
13213
13214 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
13215                           int element, boolean change_level)
13216 {
13217   int y;
13218
13219   if (from_y > to_y)
13220     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
13221
13222   for (y = from_y; y <= to_y; y++)
13223     DrawLine(from_x, y, to_x, y, element, change_level);
13224 }
13225
13226 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
13227                        int element, boolean change_level)
13228 {
13229   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
13230   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
13231   int len_x = ABS(to_x - from_x);
13232   int len_y = ABS(to_y - from_y);
13233   int radius, x, y;
13234
13235   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
13236
13237   // not optimal (some points get drawn twice) but simple,
13238   // and fast enough for the few points we are drawing
13239
13240   for (x = 0; x <= radius; x++)
13241   {
13242     int sx, sy, sx2, sy2, lx, ly;
13243
13244     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
13245
13246     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13247     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13248     sx = getLoResScreenPos(sx2);
13249     sy = getLoResScreenPos(sy2);
13250     lx = sx + level_xpos;
13251     ly = sy + level_ypos;
13252
13253     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13254       DrawLineElement(sx2, sy2, element, change_level);
13255   }
13256
13257   for (y = 0; y <= radius; y++)
13258   {
13259     int sx, sy, sx2, sy2, lx, ly;
13260
13261     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
13262
13263     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
13264     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
13265     sx = getLoResScreenPos(sx2);
13266     sy = getLoResScreenPos(sy2);
13267     lx = sx + level_xpos;
13268     ly = sy + level_ypos;
13269
13270     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13271       DrawLineElement(sx2, sy2, element, change_level);
13272   }
13273 }
13274
13275 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
13276                     int element, boolean change_level)
13277 {
13278   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13279   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13280
13281   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13282 }
13283
13284 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
13285
13286 #if DRAW_CIRCLES_BUTTON_AVAILABLE
13287 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
13288                        int element, boolean change_level)
13289 {
13290   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
13291   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
13292   int mirror_to_x2 = from_x - (to_x2 - from_x);
13293   int mirror_to_y2 = from_y - (to_y2 - from_y);
13294
13295   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
13296   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
13297   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
13298   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element, change_level);
13299 }
13300 #endif
13301
13302 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
13303 {
13304   int from_sx, from_sy;
13305   int to_sx, to_sy;
13306
13307   if (from_x > to_x)
13308     swap_numbers(&from_x, &to_x);
13309
13310   if (from_y > to_y)
13311     swap_numbers(&from_y, &to_y);
13312
13313   from_sx = SX + from_x * ed_tilesize;
13314   from_sy = SY + from_y * ed_tilesize;
13315   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
13316   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
13317
13318   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
13319   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
13320   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
13321   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
13322
13323   if (from_x == to_x && from_y == to_y)
13324     MarkTileDirty(from_x/2, from_y/2);
13325   else
13326     redraw_mask |= REDRAW_FIELD;
13327 }
13328
13329 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
13330                         int element, boolean change_level)
13331 {
13332   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
13333 }
13334
13335 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
13336                        int element, boolean change_level)
13337 {
13338   if (element == -1 || change_level)
13339     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
13340   else
13341     DrawAreaBorder(from_x, from_y, to_x, to_y);
13342 }
13343
13344 // values for CopyBrushExt()
13345 #define CB_AREA_TO_BRUSH                0
13346 #define CB_BRUSH_TO_CURSOR              1
13347 #define CB_BRUSH_TO_LEVEL               2
13348 #define CB_DELETE_OLD_CURSOR            3
13349 #define CB_DUMP_BRUSH                   4
13350 #define CB_DUMP_BRUSH_SMALL             5
13351 #define CB_CLIPBOARD_TO_BRUSH           6
13352 #define CB_BRUSH_TO_CLIPBOARD           7
13353 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
13354 #define CB_UPDATE_BRUSH_POSITION        9
13355 #define CB_FLIP_BRUSH_X                 10
13356 #define CB_FLIP_BRUSH_Y                 11
13357 #define CB_FLIP_BRUSH_XY                12
13358
13359 #define MAX_CB_PART_SIZE        10
13360 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
13361 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
13362 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
13363                                  MAX_CB_NUM_LINES *     \
13364                                  MAX_CB_PART_SIZE)
13365
13366 static int getFlippedTileExt(int map[], int element)
13367 {
13368   int i;
13369
13370   for (i = 0; map[i] != -1; i++)
13371     if (map[i] == element)
13372       return map[i ^ 1];        // get flipped element by flipping LSB of index
13373
13374   return element;
13375 }
13376
13377 static int getFlippedTileX(int element)
13378 {
13379   int map[] =
13380   {
13381     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_RIGHT,
13382     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_RIGHT,
13383     EL_BUG_LEFT,                        EL_BUG_RIGHT,
13384     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_RIGHT,
13385     EL_PACMAN_LEFT,                     EL_PACMAN_RIGHT,
13386     EL_ARROW_LEFT,                      EL_ARROW_RIGHT,
13387     EL_MOLE_LEFT,                       EL_MOLE_RIGHT,
13388     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_RIGHT,
13389     EL_YAMYAM_LEFT,                     EL_YAMYAM_RIGHT,
13390     EL_SP_PORT_LEFT,                    EL_SP_PORT_RIGHT,
13391     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_RIGHT,
13392     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_RIGHT,
13393     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_RIGHT,
13394     EL_CONVEYOR_BELT_1_LEFT,            EL_CONVEYOR_BELT_1_RIGHT,
13395     EL_CONVEYOR_BELT_2_LEFT,            EL_CONVEYOR_BELT_2_RIGHT,
13396     EL_CONVEYOR_BELT_3_LEFT,            EL_CONVEYOR_BELT_3_RIGHT,
13397     EL_CONVEYOR_BELT_4_LEFT,            EL_CONVEYOR_BELT_4_RIGHT,
13398     EL_SPRING_LEFT,                     EL_SPRING_RIGHT,
13399     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_RIGHT,
13400     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_VERTICAL_RIGHT,
13401     EL_TUBE_LEFT_UP,                    EL_TUBE_RIGHT_UP,
13402     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_DOWN,
13403     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_RIGHT,
13404     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_TOPRIGHT,
13405     EL_DC_STEELWALL_1_BOTTOMLEFT,       EL_DC_STEELWALL_1_BOTTOMRIGHT,
13406     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_TOPRIGHT_2,
13407     EL_DC_STEELWALL_1_BOTTOMLEFT_2,     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13408     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_RIGHT,
13409     EL_ACID_POOL_TOPLEFT,               EL_ACID_POOL_TOPRIGHT,
13410     EL_ACID_POOL_BOTTOMLEFT,            EL_ACID_POOL_BOTTOMRIGHT,
13411
13412     -1
13413   };
13414
13415   return getFlippedTileExt(map, element);
13416 }
13417
13418 static int getFlippedTileY(int element)
13419 {
13420   int map[] =
13421   {
13422     EL_BD_BUTTERFLY_UP,                 EL_BD_BUTTERFLY_DOWN,
13423     EL_BD_FIREFLY_UP,                   EL_BD_FIREFLY_DOWN,
13424     EL_BUG_UP,                          EL_BUG_DOWN,
13425     EL_SPACESHIP_UP,                    EL_SPACESHIP_DOWN,
13426     EL_PACMAN_UP,                       EL_PACMAN_DOWN,
13427     EL_ARROW_UP,                        EL_ARROW_DOWN,
13428     EL_MOLE_UP,                         EL_MOLE_DOWN,
13429     EL_BALLOON_SWITCH_UP,               EL_BALLOON_SWITCH_DOWN,
13430     EL_YAMYAM_UP,                       EL_YAMYAM_DOWN,
13431     EL_SP_PORT_UP,                      EL_SP_PORT_DOWN,
13432     EL_SP_GRAVITY_PORT_UP,              EL_SP_GRAVITY_PORT_DOWN,
13433     EL_SP_GRAVITY_ON_PORT_UP,           EL_SP_GRAVITY_ON_PORT_DOWN,
13434     EL_SP_GRAVITY_OFF_PORT_UP,          EL_SP_GRAVITY_OFF_PORT_DOWN,
13435     EL_SP_CHIP_TOP,                     EL_SP_CHIP_BOTTOM,
13436     EL_TUBE_HORIZONTAL_UP,              EL_TUBE_HORIZONTAL_DOWN,
13437     EL_TUBE_LEFT_UP,                    EL_TUBE_LEFT_DOWN,
13438     EL_TUBE_RIGHT_UP,                   EL_TUBE_RIGHT_DOWN,
13439     EL_DC_STEELWALL_1_TOP,              EL_DC_STEELWALL_1_BOTTOM,
13440     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_BOTTOMLEFT,
13441     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMRIGHT,
13442     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13443     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
13444     EL_DC_STEELWALL_2_TOP,              EL_DC_STEELWALL_2_BOTTOM,
13445     EL_EMC_WALL_1,                      EL_EMC_WALL_3,
13446
13447     -1
13448   };
13449
13450   return getFlippedTileExt(map, element);
13451 }
13452
13453 static int getFlippedTileXY(int element)
13454 {
13455   int map[] =
13456   {
13457     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_UP,
13458     EL_BD_BUTTERFLY_RIGHT,              EL_BD_BUTTERFLY_DOWN,
13459     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_UP,
13460     EL_BD_FIREFLY_RIGHT,                EL_BD_FIREFLY_DOWN,
13461     EL_BUG_LEFT,                        EL_BUG_UP,
13462     EL_BUG_RIGHT,                       EL_BUG_DOWN,
13463     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_UP,
13464     EL_SPACESHIP_RIGHT,                 EL_SPACESHIP_DOWN,
13465     EL_PACMAN_LEFT,                     EL_PACMAN_UP,
13466     EL_PACMAN_RIGHT,                    EL_PACMAN_DOWN,
13467     EL_ARROW_LEFT,                      EL_ARROW_UP,
13468     EL_ARROW_RIGHT,                     EL_ARROW_DOWN,
13469     EL_MOLE_LEFT,                       EL_MOLE_UP,
13470     EL_MOLE_RIGHT,                      EL_MOLE_DOWN,
13471     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_UP,
13472     EL_BALLOON_SWITCH_RIGHT,            EL_BALLOON_SWITCH_DOWN,
13473     EL_YAMYAM_LEFT,                     EL_YAMYAM_UP,
13474     EL_YAMYAM_RIGHT,                    EL_YAMYAM_DOWN,
13475     EL_SP_PORT_LEFT,                    EL_SP_PORT_UP,
13476     EL_SP_PORT_RIGHT,                   EL_SP_PORT_DOWN,
13477     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_UP,
13478     EL_SP_GRAVITY_PORT_RIGHT,           EL_SP_GRAVITY_PORT_DOWN,
13479     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_UP,
13480     EL_SP_GRAVITY_ON_PORT_RIGHT,        EL_SP_GRAVITY_ON_PORT_DOWN,
13481     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_UP,
13482     EL_SP_GRAVITY_OFF_PORT_RIGHT,       EL_SP_GRAVITY_OFF_PORT_DOWN,
13483     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_TOP,
13484     EL_SP_CHIP_RIGHT,                   EL_SP_CHIP_BOTTOM,
13485     EL_TUBE_VERTICAL,                   EL_TUBE_HORIZONTAL,
13486     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_HORIZONTAL_UP,
13487     EL_TUBE_VERTICAL_RIGHT,             EL_TUBE_HORIZONTAL_DOWN,
13488     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_UP,
13489     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_TOP,
13490     EL_DC_STEELWALL_1_RIGHT,            EL_DC_STEELWALL_1_BOTTOM,
13491     EL_DC_STEELWALL_1_HORIZONTAL,       EL_DC_STEELWALL_1_VERTICAL,
13492     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMLEFT,
13493     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMLEFT_2,
13494     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_TOP,
13495     EL_DC_STEELWALL_2_RIGHT,            EL_DC_STEELWALL_2_BOTTOM,
13496     EL_DC_STEELWALL_2_HORIZONTAL,       EL_DC_STEELWALL_2_VERTICAL,
13497     EL_EXPANDABLE_WALL_HORIZONTAL,      EL_EXPANDABLE_WALL_VERTICAL,
13498     EL_EXPANDABLE_STEELWALL_HORIZONTAL, EL_EXPANDABLE_STEELWALL_VERTICAL,
13499
13500     -1
13501   };
13502
13503   return getFlippedTileExt(map, element);
13504 }
13505
13506 static int getFlippedTile(int element, int mode)
13507 {
13508   if (IS_MM_ELEMENT(element))
13509   {
13510     // get MM game element
13511     element = map_element_RND_to_MM(element);
13512
13513     // get flipped game element
13514     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX_MM(element) :
13515                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY_MM(element) :
13516                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY_MM(element) :
13517                element);
13518
13519     // get RND game element again
13520     element = map_element_MM_to_RND(element);
13521   }
13522   else
13523   {
13524     // get flipped game element
13525     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX(element) :
13526                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY(element) :
13527                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY(element) :
13528                element);
13529   }
13530
13531   return element;
13532 }
13533
13534 static void SwapFlippedTiles(short *tile1, short *tile2, int mode)
13535 {
13536   // flip tiles
13537   short tile1_flipped = getFlippedTile(*tile1, mode);
13538   short tile2_flipped = getFlippedTile(*tile2, mode);
13539
13540   // swap tiles
13541   *tile1 = tile2_flipped;
13542   *tile2 = tile1_flipped;
13543 }
13544
13545 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
13546 {
13547   DrawLineElement(sx, sy, element, change_level);
13548 }
13549
13550 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
13551                          int button, int mode)
13552 {
13553   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
13554   static int brush_width, brush_height;
13555   static int last_cursor_x = -1, last_cursor_y = -1;
13556   static boolean delete_old_brush = FALSE;
13557   int new_element = BUTTON_ELEMENT(button);
13558   int x, y;
13559
13560   if (mode == CB_DUMP_BRUSH ||
13561       mode == CB_DUMP_BRUSH_SMALL ||
13562       mode == CB_BRUSH_TO_CLIPBOARD ||
13563       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13564   {
13565     if (edit_mode != ED_MODE_DRAWING)
13566       return;
13567
13568     char part[MAX_CB_PART_SIZE + 1] = "";
13569     char text[MAX_CB_TEXT_SIZE + 1] = "";
13570     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
13571     int height = (draw_with_brush ? brush_height : lev_fieldy);
13572     char *format = "%s%03d";
13573
13574     for (y = 0; y < height; y++)
13575       for (x = 0; x < width; x++)
13576         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
13577           format = "%s%04d";
13578
13579     for (y = 0; y < height; y++)
13580     {
13581       for (x = 0; x < width; x++)
13582       {
13583         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
13584         char *prefix = (mode == CB_DUMP_BRUSH ||
13585                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
13586
13587         if (element >= NUM_FILE_ELEMENTS)
13588           element = EL_UNKNOWN;
13589
13590         // copy brush to level sketch text buffer for the R'n'D forum:
13591         // - large tiles: `xxx or `xxxx (0x60 ASCII)
13592         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
13593         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
13594         strcat(text, part);
13595       }
13596
13597       strcat(text, "\n");
13598     }
13599
13600     if (mode == CB_BRUSH_TO_CLIPBOARD ||
13601         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
13602       SDL_SetClipboardText(text);
13603     else
13604       Print("%s", text);        // print brush data to console and log file
13605
13606     return;
13607   }
13608
13609   if (mode == CB_CLIPBOARD_TO_BRUSH)
13610   {
13611     if (edit_mode != ED_MODE_DRAWING)
13612       return;
13613
13614     if (!SDL_HasClipboardText())
13615     {
13616       Request("Clipboard is empty!", REQ_CONFIRM);
13617
13618       return;
13619     }
13620
13621     boolean copy_to_brush = (draw_with_brush ||
13622                              drawing_function == GADGET_ID_GRAB_BRUSH);
13623
13624     // this will delete the old brush, if already drawing with a brush
13625     if (copy_to_brush)
13626       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
13627
13628     // initialization is required for "odd" (incomplete) clipboard content
13629     for (x = 0; x < MAX_LEV_FIELDX; x++)
13630       for (y = 0; y < MAX_LEV_FIELDY; y++)
13631         brush_buffer[x][y] = EL_EMPTY;
13632
13633     brush_width  = 0;
13634     brush_height = 0;
13635     x = 0;
13636     y = 0;
13637
13638     char *clipboard_text = SDL_GetClipboardText();
13639     char *ptr = clipboard_text;
13640     boolean allow_new_row = FALSE;
13641     boolean stop = FALSE;
13642
13643     while (*ptr && !stop)
13644     {
13645       boolean prefix_found = FALSE;
13646       boolean start_new_row = FALSE;
13647
13648       // level sketch element number prefixes (may be multi-byte characters)
13649       char *prefix_list[] = { "`", "¸" };
13650       int i;
13651
13652       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
13653       {
13654         char *prefix = prefix_list[i];
13655
13656         // check if string is large enough for prefix
13657         if (strlen(ptr) < strlen(prefix))
13658         {
13659           stop = TRUE;
13660
13661           break;
13662         }
13663
13664         // check if string starts with prefix
13665         if (strPrefix(ptr, prefix))
13666         {
13667           ptr += strlen(prefix);
13668
13669           prefix_found = TRUE;
13670
13671           break;
13672         }
13673       }
13674
13675       // check if prefix found and followed by (at least) three digits
13676       if (prefix_found &&
13677           strlen(ptr) >= 3 &&
13678           ptr[0] >= '0' && ptr[0] <= '9' &&
13679           ptr[1] >= '0' && ptr[1] <= '9' &&
13680           ptr[2] >= '0' && ptr[2] <= '9')
13681       {
13682         int element = ((ptr[0] - '0') * 100 +
13683                        (ptr[1] - '0') * 10 +
13684                        (ptr[2] - '0'));
13685
13686         ptr += 3;
13687
13688         // level sketch element number might consist of four digits
13689         if (ptr[0] >= '0' && ptr[0] <= '9')
13690         {
13691           element = element * 10 + (ptr[0] - '0');
13692           ptr++;
13693         }
13694
13695         // remap some (historic, now obsolete) elements
13696         element = getMappedElement(element);
13697
13698         if (element >= NUM_FILE_ELEMENTS)
13699           element = EL_UNKNOWN;
13700
13701         brush_buffer[x][y] = element;
13702
13703         brush_width  = MAX(x + 1, brush_width);
13704         brush_height = MAX(y + 1, brush_height);
13705
13706         x++;
13707
13708         if (x >= MAX_LEV_FIELDX)
13709           start_new_row = TRUE;
13710
13711         allow_new_row = TRUE;
13712       }
13713       else
13714       {
13715         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
13716           start_new_row = TRUE;
13717
13718         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
13719       }
13720
13721       if (start_new_row)
13722       {
13723         x = 0;
13724         y++;
13725
13726         if (y >= MAX_LEV_FIELDY)
13727           stop = TRUE;
13728
13729         allow_new_row = FALSE;
13730       }
13731     }
13732
13733     SDL_free(clipboard_text);
13734
13735     if (brush_width == 0 || brush_height == 0)
13736     {
13737       Request("No level sketch found in clipboard!", REQ_CONFIRM);
13738
13739       return;
13740     }
13741
13742     if (copy_to_brush)
13743     {
13744       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
13745       int mx, my;
13746
13747       SDL_GetMouseState(&mx, &my);
13748
13749       // if inside drawing area, activate and draw brush at last mouse position
13750       if (mx >= gi->x && mx < gi->x + gi->width &&
13751           my >= gi->y && my < gi->y + gi->height)
13752         CopyBrushToCursor(last_cursor_x, last_cursor_y);
13753
13754       draw_with_brush = TRUE;
13755     }
13756     else
13757     {
13758       char request[100];
13759
13760       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
13761               brush_width, brush_height);
13762
13763       if (!Request(request, REQ_ASK))
13764         return;
13765
13766       for (x = 0; x < MAX_LEV_FIELDX; x++)
13767         for (y = 0; y < MAX_LEV_FIELDY; y++)
13768           Tile[x][y] = brush_buffer[x][y];
13769
13770       lev_fieldx = level.fieldx = brush_width;
13771       lev_fieldy = level.fieldy = brush_height;
13772
13773       boolean use_bd_engine = TRUE;
13774       boolean use_em_engine = TRUE;
13775       boolean use_sp_engine = TRUE;
13776       boolean use_mm_engine = TRUE;
13777
13778       for (x = 0; x < MAX_LEV_FIELDX; x++)
13779       {
13780         for (y = 0; y < MAX_LEV_FIELDY; y++)
13781         {
13782           int element = Tile[x][y];
13783
13784           if (!IS_BD_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13785             use_bd_engine = FALSE;
13786
13787           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
13788             use_em_engine = FALSE;
13789
13790           if (!IS_SP_ELEMENT(element))
13791             use_sp_engine = FALSE;
13792
13793           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
13794             use_mm_engine = FALSE;
13795         }
13796       }
13797
13798       level.game_engine_type = (use_bd_engine ? GAME_ENGINE_TYPE_BD :
13799                                 use_em_engine ? GAME_ENGINE_TYPE_EM :
13800                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
13801                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
13802                                 GAME_ENGINE_TYPE_RND);
13803
13804       // update element selection list
13805       ReinitializeElementList();
13806       ModifyEditorElementList();
13807
13808       SetBorderElement();
13809
13810       DrawEditModeWindow();
13811       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13812     }
13813
13814     return;
13815   }
13816
13817   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
13818     return;
13819
13820   if (mode == CB_AREA_TO_BRUSH)
13821   {
13822     int from_lx, from_ly;
13823
13824     if (from_x > to_x)
13825       swap_numbers(&from_x, &to_x);
13826
13827     if (from_y > to_y)
13828       swap_numbers(&from_y, &to_y);
13829
13830     brush_width = to_x - from_x + 1;
13831     brush_height = to_y - from_y + 1;
13832
13833     from_lx = from_x + level_xpos;
13834     from_ly = from_y + level_ypos;
13835
13836     for (y = 0; y < brush_height; y++)
13837     {
13838       for (x = 0; x < brush_width; x++)
13839       {
13840         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
13841
13842         if (button != 1)
13843           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
13844       }
13845     }
13846
13847     if (button != 1)
13848       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13849
13850     delete_old_brush = FALSE;
13851   }
13852   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
13853            mode == CB_BRUSH_TO_LEVEL)
13854   {
13855     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
13856     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
13857     int cursor_from_x = cursor_x - brush_width / 2;
13858     int cursor_from_y = cursor_y - brush_height / 2;
13859     int border_from_x = cursor_x, border_from_y = cursor_y;
13860     int border_to_x = cursor_x, border_to_y = cursor_y;
13861
13862     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
13863       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13864
13865     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
13866         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
13867     {
13868       delete_old_brush = FALSE;
13869
13870       return;
13871     }
13872
13873     for (y = 0; y < brush_height; y++)
13874     {
13875       for (x = 0; x < brush_width; x++)
13876       {
13877         int sx = cursor_from_x + x;
13878         int sy = cursor_from_y + y;
13879         int lx = sx + level_xpos;
13880         int ly = sy + level_ypos;
13881         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
13882         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
13883                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
13884                        brush_buffer[x][y] : new_element);
13885
13886         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
13887         {
13888           if (sx < border_from_x)
13889             border_from_x = sx;
13890           else if (sx > border_to_x)
13891             border_to_x = sx;
13892           if (sy < border_from_y)
13893             border_from_y = sy;
13894           else if (sy > border_to_y)
13895             border_to_y = sy;
13896
13897           DrawBrushElement(sx, sy, element, change_level);
13898         }
13899       }
13900     }
13901
13902     if (mode != CB_DELETE_OLD_CURSOR)
13903       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
13904
13905     last_cursor_x = cursor_x;
13906     last_cursor_y = cursor_y;
13907
13908     delete_old_brush = TRUE;
13909   }
13910   else if (mode == CB_FLIP_BRUSH_X)
13911   {
13912     for (y = 0; y < brush_height; y++)
13913       for (x = 0; x < (brush_width + 1) / 2; x++)
13914         SwapFlippedTiles(&brush_buffer[x][y],
13915                          &brush_buffer[brush_width - x - 1][y], mode);
13916
13917     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13918   }
13919   else if (mode == CB_FLIP_BRUSH_Y)
13920   {
13921     for (y = 0; y < (brush_height + 1) / 2; y++)
13922       for (x = 0; x < brush_width; x++)
13923         SwapFlippedTiles(&brush_buffer[x][y],
13924                          &brush_buffer[x][brush_height - y - 1], mode);
13925
13926     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13927   }
13928   else if (mode == CB_FLIP_BRUSH_XY)
13929   {
13930     CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13931
13932     for (y = 0; y < MAX(brush_width, brush_height); y++)
13933       for (x = 0; x <= y; x++)
13934         SwapFlippedTiles(&brush_buffer[x][y],
13935                          &brush_buffer[y][x], mode);
13936
13937     swap_numbers(&brush_width, &brush_height);
13938
13939     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13940   }
13941
13942   if (mode == CB_UPDATE_BRUSH_POSITION)
13943   {
13944     last_cursor_x = from_x;
13945     last_cursor_y = from_y;
13946   }
13947 }
13948
13949 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
13950                             int button)
13951 {
13952   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
13953 }
13954
13955 static void CopyBrushToLevel(int x, int y, int button)
13956 {
13957   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
13958 }
13959
13960 static void CopyBrushToCursor(int x, int y)
13961 {
13962   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
13963 }
13964
13965 static void UpdateBrushPosition(int x, int y)
13966 {
13967   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
13968 }
13969
13970 static void DeleteBrushFromCursor(void)
13971 {
13972   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
13973 }
13974
13975 static void FlipBrushX(void)
13976 {
13977   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
13978 }
13979
13980 static void FlipBrushY(void)
13981 {
13982   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_Y);
13983 }
13984
13985 static void RotateBrush(void)
13986 {
13987   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_XY);
13988   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
13989 }
13990
13991 void DumpBrush(void)
13992 {
13993   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
13994 }
13995
13996 void DumpBrush_Small(void)
13997 {
13998   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
13999 }
14000
14001 void CopyClipboardToBrush(void)
14002 {
14003   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
14004 }
14005
14006 void CopyBrushToClipboard(void)
14007 {
14008   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
14009 }
14010
14011 void CopyBrushToClipboard_Small(void)
14012 {
14013   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
14014 }
14015
14016 void UndoLevelEditorOperation(void)
14017 {
14018   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
14019 }
14020
14021 void RedoLevelEditorOperation(void)
14022 {
14023   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14024 }
14025
14026 static void FloodFill(int from_x, int from_y, int fill_element)
14027 {
14028   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
14029 }
14030
14031 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
14032 {
14033   int from_x = from_sx2 + 2 * level_xpos;
14034   int from_y = from_sy2 + 2 * level_ypos;
14035   int max_fillx = lev_fieldx * 2;
14036   int max_filly = lev_fieldy * 2;
14037   short Fill[max_fillx][max_filly];
14038   int x, y;
14039
14040   for (x = 0; x < max_fillx; x++)
14041     for (y = 0; y < max_filly; y++)
14042       Fill[x][y] = getLevelElementHiRes(x, y);
14043
14044   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
14045                     Fill, max_fillx, max_filly);
14046
14047   for (x = 0; x < max_fillx; x++)
14048     for (y = 0; y < max_filly; y++)
14049       if (Fill[x][y] == fill_element)
14050         SetLevelElementHiRes(x, y, Fill[x][y]);
14051 }
14052
14053 // values for DrawLevelText() modes
14054 #define TEXT_INIT               0
14055 #define TEXT_SETCURSOR          1
14056 #define TEXT_WRITECHAR          2
14057 #define TEXT_BACKSPACE          3
14058 #define TEXT_NEWLINE            4
14059 #define TEXT_END                5
14060 #define TEXT_QUERY_TYPING       6
14061
14062 static int DrawLevelText(int sx, int sy, char letter, int mode)
14063 {
14064   static short delete_buffer[MAX_LEV_FIELDX];
14065   static int start_sx;
14066   static int last_sx, last_sy;
14067   static boolean typing = FALSE;
14068   int letter_element;
14069   int lx = 0, ly = 0;
14070
14071   // map lower case letters to upper case and convert special characters
14072   if (letter >= 'a' && letter <= 'z')
14073     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
14074   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
14075     letter_element = EL_CHAR_AUMLAUT;
14076   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
14077     letter_element = EL_CHAR_OUMLAUT;
14078   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
14079     letter_element = EL_CHAR_UUMLAUT;
14080   else if (letter == '^')
14081     letter_element = EL_CHAR_COPYRIGHT;
14082   else
14083     letter_element = EL_CHAR_ASCII0 + letter;
14084
14085   if (mode != TEXT_INIT)
14086   {
14087     if (!typing)
14088       return FALSE;
14089
14090     if (mode != TEXT_SETCURSOR)
14091     {
14092       sx = last_sx;
14093       sy = last_sy;
14094     }
14095
14096     lx = last_sx + level_xpos;
14097     ly = last_sy + level_ypos;
14098   }
14099
14100   switch (mode)
14101   {
14102     case TEXT_INIT:
14103       if (typing)
14104         DrawLevelText(0, 0, 0, TEXT_END);
14105
14106       typing = TRUE;
14107       start_sx = sx;
14108       last_sx = sx;
14109       last_sy = sy;
14110       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
14111       break;
14112
14113     case TEXT_SETCURSOR:
14114       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
14115       DrawAreaBorder(sx, sy, sx, sy);
14116       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
14117                      ed_tilesize, ed_tilesize);
14118       last_sx = sx;
14119       last_sy = sy;
14120       break;
14121
14122     case TEXT_WRITECHAR:
14123       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
14124       {
14125         if (new_element1 >= EL_STEEL_CHAR_START &&
14126             new_element1 <= EL_STEEL_CHAR_END)
14127           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
14128
14129         delete_buffer[sx - start_sx] = Tile[lx][ly];
14130         Tile[lx][ly] = letter_element;
14131
14132         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
14133           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
14134         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14135           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14136         else
14137           DrawLevelText(0, 0, 0, TEXT_END);
14138
14139         level.changed = TRUE;
14140       }
14141       break;
14142
14143     case TEXT_BACKSPACE:
14144       if (sx > start_sx)
14145       {
14146         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
14147         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
14148         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
14149       }
14150       break;
14151
14152     case TEXT_NEWLINE:
14153       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
14154         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
14155       else
14156         DrawLevelText(0, 0, 0, TEXT_END);
14157       break;
14158
14159     case TEXT_END:
14160       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14161       DrawEditorElement(sx, sy, Tile[lx][ly]);
14162       StopTextInput();
14163       typing = FALSE;
14164       break;
14165
14166     case TEXT_QUERY_TYPING:
14167       break;
14168
14169     default:
14170       break;
14171   }
14172
14173   return typing;
14174 }
14175
14176 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
14177                           int element, boolean change_level)
14178 {
14179   int lx = sx + level_xpos;
14180   int ly = sy + level_ypos;
14181
14182   if (element == -1)
14183     DrawEditorElement(sx, sy, Tile[lx][ly]);
14184   else
14185     DrawAreaBorder(sx, sy, sx, sy);
14186 }
14187
14188 static void CheckLevelBorderElement(boolean redraw_playfield)
14189 {
14190   int last_border_element = BorderElement;
14191
14192   SetBorderElement();
14193
14194   if (redraw_playfield && BorderElement != last_border_element)
14195     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14196 }
14197
14198 static void CopyLevelToUndoBuffer(int mode)
14199 {
14200   static boolean accumulated_undo = FALSE;
14201   boolean new_undo_buffer_position = TRUE;
14202   int x, y;
14203
14204   if (undo_buffer_steps == 0)
14205     accumulated_undo = FALSE;
14206
14207   switch (mode)
14208   {
14209     case UNDO_IMMEDIATE:
14210       accumulated_undo = FALSE;
14211       break;
14212
14213     case UNDO_ACCUMULATE:
14214       if (accumulated_undo)
14215         new_undo_buffer_position = FALSE;
14216       accumulated_undo = TRUE;
14217       break;
14218
14219     default:
14220       break;
14221   }
14222
14223   if (new_undo_buffer_position)
14224   {
14225     // advance position in undo buffer ring
14226     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14227
14228     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
14229       undo_buffer_steps++;
14230   }
14231
14232   // always reset redo buffer when storing level change into undo buffer
14233   redo_buffer_steps = 0;
14234
14235   for (x = 0; x < lev_fieldx; x++)
14236     for (y = 0; y < lev_fieldy; y++)
14237       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
14238
14239   // check if drawing operation forces change of border style
14240   CheckLevelBorderElement(TRUE);
14241
14242   level.changed = TRUE;
14243 }
14244
14245 static void RandomPlacement(int new_element)
14246 {
14247   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
14248   int num_free_positions = 0;
14249   int num_percentage, num_elements;
14250   int x, y;
14251
14252   ResetIntelliDraw();
14253
14254   // determine number of free positions for randomly placing the new element
14255   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
14256   {
14257     free_position[x][y] =
14258       (random_placement_background_restricted ?
14259        Tile[x][y] == random_placement_background_element :
14260        Tile[x][y] != new_element);
14261
14262     if (free_position[x][y])
14263       num_free_positions++;
14264   }
14265
14266   // determine number of new elements to place there
14267   num_percentage = num_free_positions * random_placement_value / 100;
14268   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
14269                   num_percentage : random_placement_value);
14270
14271   // if less free positions than elements to place, fill all these positions
14272   if (num_free_positions < num_elements)
14273   {
14274     for (x = 0; x < lev_fieldx; x++)
14275       for (y = 0; y < lev_fieldy; y++)
14276         if (free_position[x][y])
14277           SetElement(x, y, new_element);
14278   }
14279   else
14280   {
14281     while (num_elements > 0)
14282     {
14283       x = GetSimpleRandom(lev_fieldx);
14284       y = GetSimpleRandom(lev_fieldy);
14285
14286       // don't place element at the same position twice
14287       if (free_position[x][y])
14288       {
14289         free_position[x][y] = FALSE;
14290         SetElement(x, y, new_element);
14291         num_elements--;
14292       }
14293     }
14294   }
14295
14296   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14297   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14298 }
14299
14300 static void WrapLevel(int dx, int dy)
14301 {
14302   int wrap_dx = lev_fieldx - dx;
14303   int wrap_dy = lev_fieldy - dy;
14304   int x, y;
14305
14306   for (x = 0; x < lev_fieldx; x++)
14307     for (y = 0; y < lev_fieldy; y++)
14308       TileBackup[x][y] = Tile[x][y];
14309
14310   for (x = 0; x < lev_fieldx; x++)
14311     for (y = 0; y < lev_fieldy; y++)
14312       Tile[x][y] =
14313         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
14314
14315   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14316   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
14317 }
14318
14319 static void DrawAreaElementHighlight(boolean highlighted,
14320                                      boolean highlighted_similar)
14321 {
14322   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14323
14324   if (!highlighted)
14325     return;
14326
14327   int x, y;
14328
14329   for (x = 0; x < ed_fieldx; x++)
14330   {
14331     for (y = 0; y < ed_fieldy; y++)
14332     {
14333       boolean highlight = FALSE;
14334       int lx = x + level_xpos;
14335       int ly = y + level_ypos;
14336
14337       if (!IN_LEV_FIELD(lx, ly))
14338         continue;
14339
14340       // check if element is the same
14341       if (Tile[lx][ly] == new_element1)
14342         highlight = TRUE;
14343
14344       // check if element is similar
14345       if (highlighted_similar &&
14346           strEqual(element_info[Tile[lx][ly]].class_name,
14347                    element_info[new_element1].class_name))
14348         highlight = TRUE;
14349
14350       // check if element is matching MM style wall
14351       if (IS_MM_WALL(Tile[lx][ly]) &&
14352           map_mm_wall_element(Tile[lx][ly]) == new_element1)
14353         highlight = TRUE;
14354
14355       if (!highlight)
14356         continue;
14357
14358       if (IS_MM_WALL(Tile[lx][ly]) && !highlighted_similar)
14359       {
14360         int i;
14361
14362         for (i = 0; i < 4; i++)
14363         {
14364           if (!(MM_WALL_BITS(Tile[lx][ly]) & (1 << i)))
14365             continue;
14366
14367           int xx = x * 2 + (i % 2);
14368           int yy = y * 2 + (i / 2);
14369           int sx = SX + xx * ed_tilesize / 2;
14370           int sy = SY + yy * ed_tilesize / 2;
14371           int from_sx = sx;
14372           int from_sy = sy;
14373           int to_sx = sx + ed_tilesize / 2 - 1;
14374           int to_sy = sy + ed_tilesize / 2 - 1;
14375
14376           DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14377           DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14378           DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14379           DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14380         }
14381       }
14382       else
14383       {
14384         int sx = SX + x * ed_tilesize;
14385         int sy = SY + y * ed_tilesize;
14386         int from_sx = sx;
14387         int from_sy = sy;
14388         int to_sx = sx + ed_tilesize - 1;
14389         int to_sy = sy + ed_tilesize - 1;
14390
14391         DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
14392         DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
14393         DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
14394         DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
14395       }
14396     }
14397   }
14398 }
14399
14400 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
14401 {
14402   char *template_filename_old = getLocalLevelTemplateFilename();
14403   char *template_filename_new =
14404     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
14405
14406   if (copyFile(template_filename_old, template_filename_new) != 0)
14407     Request("Cannot copy level template!", REQ_CONFIRM);
14408
14409   free(template_filename_new);
14410 }
14411
14412 static void HandleDrawingAreas(struct GadgetInfo *gi)
14413 {
14414   static boolean started_inside_drawing_area = FALSE;
14415   static int last_sx = -1;
14416   static int last_sy = -1;
14417   static int last_sx2 = -1;
14418   static int last_sy2 = -1;
14419   int id = gi->custom_id;
14420   int type_id = gi->custom_type_id;
14421   boolean button_press_event;
14422   boolean button_release_event;
14423   boolean inside_drawing_area = !gi->event.off_borders;
14424   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
14425   int actual_drawing_function;
14426   int button = gi->event.button;
14427   int new_element = BUTTON_ELEMENT(button);
14428   int sx = gi->event.x, sy = gi->event.y;
14429   int min_sx = 0, min_sy = 0;
14430   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
14431   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
14432   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
14433   int sx2 = gi->event.mx / mini_item_xsize;
14434   int sy2 = gi->event.my / mini_item_ysize;
14435   int dx = sx2 % 2;
14436   int dy = sy2 % 2;
14437   int lx = 0, ly = 0;
14438   int x, y;
14439
14440   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
14441   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
14442
14443   // make sure to stay inside drawing area boundaries
14444   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
14445   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
14446
14447   if (draw_level)
14448   {
14449     int min_lx = 0, min_ly = 0;
14450     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
14451
14452     // get positions inside level field
14453     lx = sx + level_xpos;
14454     ly = sy + level_ypos;
14455
14456     if (!IN_LEV_FIELD(lx, ly))
14457       inside_drawing_area = FALSE;
14458
14459     // make sure to stay inside level field boundaries
14460     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
14461     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
14462
14463     // correct drawing area positions accordingly
14464     sx = lx - level_xpos;
14465     sy = ly - level_ypos;
14466   }
14467
14468   // also correct MM wall-sized (double) drawing area positions accordingly
14469   if (sx2 / 2 < sx || sx2 / 2 > sx)
14470   {
14471     dx = (sx2 / 2 < sx ? 0 : 1);
14472     sx2 = sx * 2 + dx;
14473   }
14474   if (sy2 / 2 < sy || sy2 / 2 > sy)
14475   {
14476     dy = (sy2 / 2 < sy ? 0 : 1);
14477     sy2 = sy * 2 + dy;
14478   }
14479
14480   if (!button_press_event && !button_release_event)
14481   {
14482     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
14483     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
14484                              isHiresTileElement(old_element) &&
14485                              isHiresDrawElement(new_element));
14486
14487     // prevent handling events for every pixel position when moving mouse
14488     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
14489         (sx2 == last_sx2 && sy2 == last_sy2))
14490       return;
14491   }
14492
14493   last_sx = sx;
14494   last_sy = sy;
14495   last_sx2 = sx2;
14496   last_sy2 = sy2;
14497
14498   if (button_press_event)
14499     started_inside_drawing_area = inside_drawing_area;
14500
14501   if (!started_inside_drawing_area)
14502     return;
14503
14504   if (!IS_VALID_BUTTON(button))
14505     return;
14506
14507   // handle info callback for each invocation of action callback
14508   gi->callback_info(gi);
14509
14510   // automatically switch to 'single item' drawing mode, if needed
14511   actual_drawing_function =
14512     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
14513      drawing_function : GADGET_ID_SINGLE_ITEMS);
14514
14515   // clicking into drawing area with pressed Control key picks element
14516   if (GetKeyModState() & KMOD_Control)
14517   {
14518     last_drawing_function = drawing_function;
14519     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
14520   }
14521
14522   if (GetKeyModState() & KMOD_Shift)
14523   {
14524     if (button_press_event || button_release_event)
14525       ResetIntelliDraw();
14526   }
14527
14528   SetDrawModeHiRes(-1);         // reset to normal draw mode
14529
14530   switch (actual_drawing_function)
14531   {
14532     case GADGET_ID_SINGLE_ITEMS:
14533       if (draw_level)
14534       {
14535         if (button_release_event)
14536         {
14537           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14538
14539           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
14540               !inside_drawing_area)
14541             DeleteBrushFromCursor();
14542
14543           break;
14544         }
14545
14546         if (draw_with_brush)
14547         {
14548           CopyBrushToLevel(sx, sy, button);
14549         }
14550         else
14551         {
14552           SetDrawModeHiRes(new_element);
14553
14554           if (IS_PLAYER_ELEMENT(new_element) || IS_MM_MCDUFFIN(new_element))
14555           {
14556             // remove player at old position
14557             for (y = 0; y < lev_fieldy; y++)
14558             {
14559               for (x = 0; x < lev_fieldx; x++)
14560               {
14561                 int old_element = Tile[x][y];
14562
14563                 if (IS_PLAYER_ELEMENT(old_element) &&
14564                     IS_PLAYER_ELEMENT(new_element))
14565                 {
14566                   int replaced_with_element =
14567                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
14568                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
14569
14570                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
14571                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
14572
14573                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
14574                      old_element == EL_PLAYER_1 ? EL_EMPTY :
14575
14576                      new_element >= EL_PLAYER_1 &&
14577                      new_element <= EL_PLAYER_4 &&
14578                      new_element == old_element ? EL_EMPTY :
14579
14580                      old_element);
14581
14582                   SetElement(x, y, replaced_with_element);
14583                 }
14584                 else if (IS_MM_MCDUFFIN(old_element) &&
14585                          IS_MM_MCDUFFIN(new_element))
14586                 {
14587                   // remove McDuffin at old position
14588                   SetElement(x, y, EL_EMPTY);
14589                 }
14590               }
14591             }
14592           }
14593
14594           SetElementButton(lx, ly, dx, dy, new_element, button);
14595         }
14596       }
14597       else if (!button_release_event)
14598       {
14599         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14600
14601         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
14602           DrawMiniGraphicExt(drawto,
14603                              gi->x + sx * MINI_TILEX,
14604                              gi->y + sy * MINI_TILEY,
14605                              el2edimg(new_element));
14606         else
14607           DrawFixedGraphicExt(drawto,
14608                               gi->x + sx * TILEX,
14609                               gi->y + sy * TILEY,
14610                               el2edimg(new_element), 0);
14611
14612         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14613           new_element = GFX_ELEMENT(new_element);
14614
14615         drawingarea_info[type_id].value[pos] = new_element;
14616
14617         CopyElementPropertiesToGame(properties_element);
14618
14619         if (id == GADGET_ID_CUSTOM_GRAPHIC)
14620         {
14621           UpdateCustomElementGraphicGadgets();
14622
14623           FrameCounter = 0;     // restart animation frame counter
14624         }
14625       }
14626       break;
14627
14628     case GADGET_ID_CONNECTED_ITEMS:
14629       {
14630         static int last_sx = -1;
14631         static int last_sy = -1;
14632
14633         if (button_release_event)
14634           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14635
14636         SetDrawModeHiRes(new_element);
14637
14638         if (getDrawModeHiRes())
14639         {
14640           sx = sx2;
14641           sy = sy2;
14642         }
14643
14644         if (!button_press_event)
14645           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
14646
14647         last_sx = sx;
14648         last_sy = sy;
14649       }
14650       break;
14651
14652     case GADGET_ID_LINE:
14653     case GADGET_ID_ARC:
14654     case GADGET_ID_RECTANGLE:
14655     case GADGET_ID_FILLED_BOX:
14656       SetDrawModeHiRes(new_element);
14657
14658       if (getDrawModeHiRes())
14659       {
14660         sx = sx2;
14661         sy = sy2;
14662       }
14663       // FALLTHROUGH
14664     case GADGET_ID_GRAB_BRUSH:
14665     case GADGET_ID_TEXT:
14666       {
14667         static int last_sx = -1;
14668         static int last_sy = -1;
14669         static int start_sx = -1;
14670         static int start_sy = -1;
14671         void (*draw_func)(int, int, int, int, int, boolean);
14672
14673         if (drawing_function == GADGET_ID_LINE)
14674           draw_func = DrawLine;
14675         else if (drawing_function == GADGET_ID_ARC)
14676           draw_func = DrawArc;
14677         else if (drawing_function == GADGET_ID_RECTANGLE)
14678           draw_func = DrawBox;
14679         else if (drawing_function == GADGET_ID_FILLED_BOX)
14680           draw_func = DrawFilledBox;
14681         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
14682           draw_func = SelectArea;
14683         else // (drawing_function == GADGET_ID_TEXT)
14684           draw_func = SetTextCursor;
14685
14686         if (button_press_event)
14687         {
14688           draw_func(sx, sy, sx, sy, new_element, FALSE);
14689           start_sx = last_sx = sx;
14690           start_sy = last_sy = sy;
14691
14692           if (drawing_function == GADGET_ID_TEXT)
14693             DrawLevelText(0, 0, 0, TEXT_END);
14694         }
14695         else if (button_release_event)
14696         {
14697           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
14698           if (drawing_function == GADGET_ID_GRAB_BRUSH)
14699           {
14700             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
14701             CopyBrushToCursor(sx, sy);
14702             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
14703                           MB_LEFTBUTTON);
14704             draw_with_brush = TRUE;
14705           }
14706           else if (drawing_function == GADGET_ID_TEXT)
14707             DrawLevelText(sx, sy, 0, TEXT_INIT);
14708           else
14709             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14710         }
14711         else if (last_sx != sx || last_sy != sy)
14712         {
14713           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
14714           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
14715             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
14716           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
14717           last_sx = sx;
14718           last_sy = sy;
14719         }
14720       }
14721       break;
14722
14723     case GADGET_ID_FLOOD_FILL:
14724       if (button_press_event && Tile[lx][ly] != new_element)
14725       {
14726         if (IS_MM_WALL_EDITOR(new_element))
14727           FloodFillWall_MM(sx2, sy2, new_element);
14728         else
14729           FloodFill(lx, ly, new_element);
14730
14731         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14732         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
14733       }
14734       break;
14735
14736     case GADGET_ID_PICK_ELEMENT:
14737       if (button_release_event)
14738         ClickOnGadget(level_editor_gadget[last_drawing_function],
14739                       MB_LEFTBUTTON);
14740       else if (draw_level)
14741         PickDrawingElement(button, Tile[lx][ly]);
14742       else
14743       {
14744         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14745
14746         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
14747       }
14748
14749     default:
14750       break;
14751   }
14752
14753   // do not mark level as modified for certain non-level-changing gadgets
14754   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
14755        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
14756       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
14757       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14758     return;
14759
14760   level.changed = TRUE;
14761 }
14762
14763 static void HandleCounterButtons(struct GadgetInfo *gi)
14764 {
14765   int gadget_id = gi->custom_id;
14766   int counter_id = gi->custom_type_id;
14767   int button = gi->event.button;
14768   int *counter_value = counterbutton_info[counter_id].value;
14769   int step = BUTTON_STEPSIZE(button) *
14770     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
14771
14772   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14773   {
14774     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
14775     boolean released = (gi->event.type == GD_EVENT_RELEASED);
14776     boolean level_changed = LevelChanged();
14777
14778     if ((level_changed && pressed) || (!level_changed && released))
14779       return;
14780
14781     if (level_changed && !Request("Level has changed! Discard changes?",
14782                                   REQ_ASK))
14783     {
14784       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14785         ModifyEditorCounterValue(counter_id, *counter_value);
14786
14787       return;
14788     }
14789   }
14790
14791   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
14792     *counter_value = gi->textinput.number_value;
14793   else
14794     ModifyEditorCounterValue(counter_id, *counter_value + step);
14795
14796   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
14797   {
14798     int last_game_engine_type = level.game_engine_type;
14799
14800     LoadLevel(level_nr);
14801     LoadScore(level_nr);
14802
14803     SaveLevelSetup_SeriesInfo();
14804
14805     TapeErase();
14806
14807     ResetUndoBuffer();
14808     DrawEditModeWindow();
14809
14810     if (level.game_engine_type != last_game_engine_type)
14811     {
14812       // update element selection list
14813       ReinitializeElementList();
14814       ModifyEditorElementList();
14815     }
14816
14817     return;
14818   }
14819
14820   switch (counter_id)
14821   {
14822     case ED_COUNTER_ID_YAMYAM_CONTENT:
14823       DrawYamYamContentAreas();
14824       break;
14825
14826     case ED_COUNTER_ID_BALL_CONTENT:
14827       DrawMagicBallContentAreas();
14828       break;
14829
14830     case ED_COUNTER_ID_ANDROID_CONTENT:
14831       DrawAndroidElementArea();
14832       break;
14833
14834     case ED_COUNTER_ID_GROUP_CONTENT:
14835       DrawGroupElementArea();
14836       CopyGroupElementPropertiesToGame(properties_element);
14837       break;
14838
14839     case ED_COUNTER_ID_INVENTORY_SIZE:
14840       DrawPlayerInitialInventoryArea(properties_element);
14841       break;
14842
14843     case ED_COUNTER_ID_MM_BALL_CONTENT:
14844       DrawMMBallContentArea();
14845       break;
14846
14847     case ED_COUNTER_ID_ENVELOPE_XSIZE:
14848     case ED_COUNTER_ID_ENVELOPE_YSIZE:
14849       DrawEnvelopeTextArea(-1);
14850       break;
14851
14852     case ED_COUNTER_ID_LEVEL_XSIZE:
14853     case ED_COUNTER_ID_LEVEL_YSIZE:
14854       lev_fieldx = level.fieldx;
14855       lev_fieldy = level.fieldy;
14856
14857       // check if resizing of level results in change of border border
14858       SetBorderElement();
14859
14860       break;
14861
14862     default:
14863       break;
14864   }
14865
14866   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
14867        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
14868       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
14869        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
14870     CopyElementPropertiesToGame(properties_element);
14871
14872   // do not mark level as modified for certain non-level-changing gadgets
14873   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
14874        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
14875       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
14876        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
14877     return;
14878
14879   level.changed = TRUE;
14880 }
14881
14882 static void HandleTextInputGadgets(struct GadgetInfo *gi)
14883 {
14884   int type_id = gi->custom_type_id;
14885
14886   strcpy(textinput_info[type_id].value, gi->textinput.value);
14887
14888   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
14889   {
14890     CopyElementPropertiesToGame(properties_element);
14891
14892     ModifyEditorElementList();  // update changed button info text
14893   }
14894
14895   // do not mark level as modified for certain non-level-changing gadgets
14896   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
14897       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
14898     return;
14899
14900   level.changed = TRUE;
14901 }
14902
14903 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
14904 {
14905   int type_id = gi->custom_type_id;
14906
14907   strncpy(textarea_info[type_id].value, gi->textarea.value,
14908           MAX_ENVELOPE_TEXT_LEN);
14909   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
14910
14911   level.changed = TRUE;
14912 }
14913
14914 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
14915 {
14916   int type_id = gi->custom_type_id;
14917   int value_old = *selectbox_info[type_id].value;
14918   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
14919
14920   *selectbox_info[type_id].value = value_new;
14921
14922   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
14923   {
14924     DrawLevelConfigWindow();
14925   }
14926   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
14927   {
14928     element_info[properties_element].current_change_page = gi->selectbox.index;
14929
14930     DrawPropertiesWindow();
14931   }
14932   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
14933             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
14934            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
14935             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
14936            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
14937   {
14938     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
14939     {
14940       // when changing action type, also check action mode and action arg
14941       if (value_old != value_new)
14942         setSelectboxSpecialActionVariablesIfNeeded();
14943
14944       DrawPropertiesChange();
14945     }
14946
14947     CopyElementPropertiesToGame(properties_element);
14948   }
14949   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
14950   {
14951     // show or hide "engine" tabulator depending on game engine type
14952     DrawLevelConfigWindow();
14953
14954     // update element selection list depending on game engine type
14955     ReinitializeElementList();
14956     ModifyEditorElementList();
14957   }
14958   else if (type_id == ED_SELECTBOX_ID_BD_SCHEDULING_TYPE)
14959   {
14960     // update BD cycle delay counter gadgets depending on BD scheduling type
14961     DrawLevelConfigWindow();
14962   }
14963
14964   // do not mark level as modified for certain non-level-changing gadgets
14965   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
14966       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
14967     return;
14968
14969   level.changed = TRUE;
14970 }
14971
14972 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
14973 {
14974   int type_id = gi->custom_type_id;
14975   int i;
14976
14977   if (type_id >= ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST &&
14978       type_id <= ED_TAB_BUTTON_ID_LEVELCONFIG_LAST)
14979   {
14980     edit_mode_levelconfig = gi->custom_type_id;
14981
14982     DrawLevelConfigWindow();
14983   }
14984   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
14985            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
14986   {
14987     edit_mode_properties = gi->custom_type_id;
14988
14989     DrawPropertiesWindow();
14990   }
14991   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
14992            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
14993   {
14994     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
14995
14996     // backup original "level.field" (needed to track playfield changes)
14997     CopyPlayfield(level.field, TileBackup);
14998
14999     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
15000     CopyPlayfield(Tile, level.field);
15001
15002     if (new_template ||
15003         Request("Save this template and kill the old?", REQ_ASK))
15004       SaveLevelTemplate();
15005
15006     if (new_template)
15007       Request("Template saved!", REQ_CONFIRM);
15008
15009     // restore original "level.field" (needed to track playfield changes)
15010     CopyPlayfield(TileBackup, level.field);
15011   }
15012   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
15013   {
15014     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
15015
15016     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
15017         leveldir_current->readonly)
15018     {
15019       Request("This level set is read-only!", REQ_CONFIRM);
15020
15021       return;
15022     }
15023
15024     if (strEqual(levelset_name, ""))
15025     {
15026       Request("Please enter level set title!", REQ_CONFIRM);
15027
15028       return;
15029     }
15030
15031     if (strEqual(levelset_author, ""))
15032     {
15033       Request("Please enter level set author!", REQ_CONFIRM);
15034
15035       return;
15036     }
15037
15038     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
15039     {
15040       if (UpdateUserLevelSet(levelset_subdir,
15041                              levelset_name,
15042                              levelset_author,
15043                              levelset_num_levels))
15044       {
15045         Request("Level set updated!", REQ_CONFIRM);
15046       }
15047       else
15048       {
15049         Request("Updating level set failed!", REQ_CONFIRM);
15050       }
15051     }
15052     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
15053     {
15054       if (level.changed && !Request("Level has changed! Discard changes?",
15055                                      REQ_ASK))
15056         return;
15057
15058       if (CreateUserLevelSet(levelset_subdir,
15059                              levelset_name,
15060                              levelset_author,
15061                              levelset_num_levels,
15062                              levelset_use_levelset_artwork))
15063       {
15064         if (levelset_copy_level_template)
15065           CopyLevelTemplateToUserLevelSet(levelset_subdir);
15066
15067         Request("New level set created!", REQ_CONFIRM);
15068
15069         AddUserLevelSetToLevelInfo(levelset_subdir);
15070         ChangeEditorToLevelSet(levelset_subdir);
15071       }
15072       else
15073       {
15074         Request("Creating new level set failed!", REQ_CONFIRM);
15075       }
15076     }
15077   }
15078   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
15079            custom_element.num_change_pages < MAX_CHANGE_PAGES)
15080   {
15081     struct ElementInfo *ei = &element_info[properties_element];
15082
15083     // when modifying custom element, ask for copying level template
15084     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15085       return;
15086
15087     setElementChangePages(ei, ei->num_change_pages + 1);
15088
15089     // set new change page to be new current change page
15090     ei->current_change_page = ei->num_change_pages - 1;
15091     ei->change = &ei->change_page[ei->current_change_page];
15092
15093     setElementChangeInfoToDefaults(ei->change);
15094
15095     DrawPropertiesWindow();
15096
15097     level.changed = TRUE;
15098   }
15099   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
15100            custom_element.num_change_pages > MIN_CHANGE_PAGES)
15101   {
15102     struct ElementInfo *ei = &element_info[properties_element];
15103
15104     // when modifying custom element, ask for copying level template
15105     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15106       return;
15107
15108     // copy all change pages after change page to be deleted
15109     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
15110       ei->change_page[i] = ei->change_page[i + 1];
15111
15112     setElementChangePages(ei, ei->num_change_pages - 1);
15113
15114     DrawPropertiesWindow();
15115
15116     level.changed = TRUE;
15117   }
15118 }
15119
15120 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
15121 {
15122   int type_id = gi->custom_type_id;
15123
15124   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
15125       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
15126   {
15127     struct ElementInfo *ei = &element_info[properties_element];
15128     int step = BUTTON_STEPSIZE(gi->event.button);
15129
15130     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
15131     ei->current_change_page += step;
15132
15133     if (ei->current_change_page < 0)
15134       ei->current_change_page = 0;
15135     else if (ei->current_change_page >= ei->num_change_pages)
15136       ei->current_change_page = ei->num_change_pages - 1;
15137
15138     DrawPropertiesWindow();
15139   }
15140   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
15141            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15142   {
15143     struct ElementInfo *ei = &element_info[properties_element];
15144     int current_change_page = ei->current_change_page;
15145
15146     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
15147     {
15148       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
15149         ei->change_page[current_change_page];
15150     }
15151     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
15152     {
15153       // when modifying custom element, ask for copying level template
15154       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
15155         return;
15156
15157       ei->change_page[current_change_page] =
15158         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
15159
15160       level.changed = TRUE;
15161     }
15162
15163     DrawPropertiesWindow();
15164   }
15165 }
15166
15167 static void HandleRadiobuttons(struct GadgetInfo *gi)
15168 {
15169   int type_id = gi->custom_type_id;
15170
15171   *radiobutton_info[type_id].value =
15172     radiobutton_info[type_id].checked_value;
15173
15174   // do not mark level as modified for certain non-level-changing gadgets
15175   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
15176       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
15177     return;
15178
15179   level.changed = TRUE;
15180 }
15181
15182 static void HandleCheckbuttons(struct GadgetInfo *gi)
15183 {
15184   int type_id = gi->custom_type_id;
15185
15186   *checkbutton_info[type_id].value ^= TRUE;
15187
15188   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
15189       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
15190       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
15191       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
15192          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
15193         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
15194          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
15195        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
15196   {
15197     CopyElementPropertiesToGame(properties_element);
15198   }
15199
15200   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
15201   {
15202     UpdateCustomElementGraphicGadgets();
15203   }
15204   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
15205            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
15206   {
15207     boolean template_related_changes_found = FALSE;
15208     int i;
15209
15210     // check if any custom, group or empty elements have been changed
15211     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
15212       if ((IS_CUSTOM_ELEMENT(i) ||
15213            IS_GROUP_ELEMENT(i) ||
15214            IS_EMPTY_ELEMENT(i)) &&
15215           element_info[i].modified_settings)
15216         template_related_changes_found = TRUE;
15217
15218     if (level.use_custom_template &&
15219         !fileExists(getGlobalLevelTemplateFilename()))
15220     {
15221       Request("No level template found!", REQ_CONFIRM);
15222
15223       level.use_custom_template = FALSE;
15224
15225       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15226
15227       return;
15228     }
15229
15230     if (level.use_custom_template &&
15231         template_related_changes_found &&
15232         !Request("Discard changes and use level template?", REQ_ASK))
15233     {
15234       level.use_custom_template = FALSE;
15235
15236       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
15237
15238       return;
15239     }
15240
15241     if (!level.use_custom_template &&
15242         Request("Copy settings from level template?", REQ_ASK))
15243     {
15244       return;
15245     }
15246
15247     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
15248
15249     DrawEditModeWindow();
15250   }
15251   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
15252   {
15253     if (setup.editor.use_template_for_new_levels &&
15254         !fileExists(getGlobalLevelTemplateFilename()))
15255     {
15256       Request("No level template found!", REQ_CONFIRM);
15257
15258       return;
15259     }
15260
15261     if (setup.editor.use_template_for_new_levels &&
15262         level.changed &&
15263         !Request("Discard level and load template?", REQ_ASK))
15264     {
15265       return;
15266     }
15267
15268     if (!setup.editor.use_template_for_new_levels &&
15269         level.changed &&
15270         !Request("Discard level and use empty level?", REQ_ASK))
15271     {
15272       return;
15273     }
15274
15275     LoadLevel(level_nr);
15276     LoadScore(level_nr);
15277
15278     TapeErase();
15279
15280     ResetUndoBuffer();
15281     DrawEditModeWindow();
15282   }
15283   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
15284   {
15285     SetAutomaticNumberOfGemsNeeded();
15286   }
15287
15288   // do not mark level as modified for certain non-level-changing gadgets
15289   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
15290        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
15291       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
15292        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
15293        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
15294       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
15295     return;
15296
15297   level.changed = TRUE;
15298 }
15299
15300 static void HandleControlButtons(struct GadgetInfo *gi)
15301 {
15302   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
15303   static int last_edit_mode = ED_MODE_DRAWING;
15304   static int last_custom_copy_mode = -1;
15305   static int last_button = 0;
15306   int id = gi->custom_id;
15307   int button = gi->event.button;
15308   int step = BUTTON_STEPSIZE(button);
15309   int new_element = BUTTON_ELEMENT(button);
15310   int last_properties_element = properties_element;
15311   int x, y;
15312
15313   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
15314     DrawLevelText(0, 0, 0, TEXT_END);
15315
15316   if (id < ED_NUM_CTRL1_BUTTONS &&
15317       id != GADGET_ID_SINGLE_ITEMS &&
15318       id != GADGET_ID_PICK_ELEMENT &&
15319       edit_mode != ED_MODE_DRAWING &&
15320       drawing_function != GADGET_ID_PICK_ELEMENT &&
15321       !(GetKeyModState() & KMOD_Control))
15322     ChangeEditModeWindow(ED_MODE_DRAWING);
15323
15324   // element copy mode active, but no element button pressed => deactivate
15325   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
15326     last_custom_copy_mode = -1;
15327
15328   // when showing palette on element buttons, change element of button used
15329   if (editor.palette.show_on_element_buttons &&
15330       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
15331   {
15332     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
15333
15334     id = GADGET_ID_PALETTE;
15335   }
15336
15337   switch (id)
15338   {
15339     case GADGET_ID_SCROLL_LEFT:
15340       if (level_xpos >= 0)
15341       {
15342         if (lev_fieldx < ed_fieldx - 2)
15343           break;
15344
15345         level_xpos -= step;
15346         if (level_xpos < -1)
15347           level_xpos = -1;
15348         if (button == 1)
15349           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
15350         else
15351           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15352
15353         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15354                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15355       }
15356       break;
15357
15358     case GADGET_ID_SCROLL_RIGHT:
15359       if (level_xpos <= lev_fieldx - ed_fieldx)
15360       {
15361         if (lev_fieldx < ed_fieldx - 2)
15362           break;
15363
15364         level_xpos += step;
15365         if (level_xpos > lev_fieldx - ed_fieldx + 1)
15366           level_xpos = lev_fieldx - ed_fieldx + 1;
15367         if (button == 1)
15368           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
15369         else
15370           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15371
15372         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
15373                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
15374       }
15375       break;
15376
15377     case GADGET_ID_SCROLL_UP:
15378       if (level_ypos >= 0)
15379       {
15380         if (lev_fieldy < ed_fieldy - 2)
15381           break;
15382
15383         level_ypos -= step;
15384         if (level_ypos < -1)
15385           level_ypos = -1;
15386         if (button == 1)
15387           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
15388         else
15389           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15390
15391         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15392                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15393       }
15394       break;
15395
15396     case GADGET_ID_SCROLL_DOWN:
15397       if (level_ypos <= lev_fieldy - ed_fieldy)
15398       {
15399         if (lev_fieldy < ed_fieldy - 2)
15400           break;
15401
15402         level_ypos += step;
15403         if (level_ypos > lev_fieldy - ed_fieldy + 1)
15404           level_ypos = lev_fieldy - ed_fieldy + 1;
15405         if (button == 1)
15406           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
15407         else
15408           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15409
15410         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
15411                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
15412       }
15413       break;
15414
15415     case GADGET_ID_SCROLL_HORIZONTAL:
15416       level_xpos = gi->event.item_position - 1;
15417
15418       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15419       BackToFront();
15420
15421       break;
15422
15423     case GADGET_ID_SCROLL_VERTICAL:
15424       level_ypos = gi->event.item_position - 1;
15425
15426       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15427       BackToFront();
15428
15429       break;
15430
15431     case GADGET_ID_SCROLL_LIST_UP:
15432     case GADGET_ID_SCROLL_LIST_DOWN:
15433     case GADGET_ID_SCROLL_LIST_VERTICAL:
15434       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
15435         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
15436       else
15437       {
15438         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
15439         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15440
15441         if (element_shift < 0)
15442           element_shift = 0;
15443         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15444           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15445
15446         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15447                      GDI_SCROLLBAR_ITEM_POSITION,
15448                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15449       }
15450
15451       ModifyEditorElementList();
15452
15453       break;
15454
15455     case GADGET_ID_PROPERTIES:
15456       // always switch off element properties when they are already displayed
15457       last_properties_element = new_element;
15458     case GADGET_ID_ELEMENT_LEFT:
15459     case GADGET_ID_ELEMENT_MIDDLE:
15460     case GADGET_ID_ELEMENT_RIGHT:
15461       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
15462                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
15463                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
15464                             new_element);
15465
15466       if (edit_mode != ED_MODE_PROPERTIES)
15467       {
15468         last_edit_mode = edit_mode;
15469
15470         ChangeEditModeWindow(ED_MODE_PROPERTIES);
15471
15472         last_level_drawing_function = drawing_function;
15473         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
15474                       MB_LEFTBUTTON);
15475       }
15476       else if (properties_element != last_properties_element)
15477       {
15478         DrawEditModeWindow();
15479       }
15480       else
15481       {
15482         ChangeEditModeWindow(ED_MODE_DRAWING);
15483
15484         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
15485                       MB_LEFTBUTTON);
15486       }
15487       break;
15488
15489     case GADGET_ID_PALETTE:
15490       if (edit_mode != ED_MODE_PALETTE)
15491       {
15492         last_edit_mode = edit_mode;
15493
15494         ChangeEditModeWindow(ED_MODE_PALETTE);
15495       }
15496       else
15497       {
15498         ChangeEditModeWindow(last_edit_mode);
15499       }
15500       break;
15501
15502     case GADGET_ID_WRAP_LEFT:
15503       WrapLevel(-step, 0);
15504       break;
15505
15506     case GADGET_ID_WRAP_RIGHT:
15507       WrapLevel(step, 0);
15508       break;
15509
15510     case GADGET_ID_WRAP_UP:
15511       WrapLevel(0, -step);
15512       break;
15513
15514     case GADGET_ID_WRAP_DOWN:
15515       WrapLevel(0, step);
15516       break;
15517
15518     case GADGET_ID_SINGLE_ITEMS:
15519     case GADGET_ID_CONNECTED_ITEMS:
15520     case GADGET_ID_LINE:
15521     case GADGET_ID_ARC:
15522     case GADGET_ID_TEXT:
15523     case GADGET_ID_RECTANGLE:
15524     case GADGET_ID_FILLED_BOX:
15525     case GADGET_ID_FLOOD_FILL:
15526     case GADGET_ID_GRAB_BRUSH:
15527     case GADGET_ID_PICK_ELEMENT:
15528       if (drawing_function != GADGET_ID_PICK_ELEMENT)
15529         last_drawing_function = drawing_function;
15530       drawing_function = id;
15531       draw_with_brush = FALSE;
15532       break;
15533
15534     case GADGET_ID_RANDOM_PLACEMENT:
15535       RandomPlacement(new_element);
15536       break;
15537
15538     case GADGET_ID_ZOOM:
15539       // zoom level editor tile size in or out (or reset to default size)
15540       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
15541                      button == 2 ? ed_tilesize_default :
15542                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
15543
15544       // when using touch device, cycle through all zoom tilesizes
15545       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
15546         ed_tilesize = MICRO_TILESIZE;
15547
15548       // limit zoom level by upper and lower bound
15549       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
15550
15551       InitZoomLevelSettings(ed_tilesize);
15552
15553       if (edit_mode == ED_MODE_DRAWING)
15554       {
15555         DrawDrawingWindow();
15556
15557         // redraw zoom gadget info text
15558         PrintEditorGadgetInfoText(level_editor_gadget[id]);
15559       }
15560
15561       // save current editor zoom tilesize
15562       SaveSetup_AutoSetup();
15563
15564       break;
15565
15566     case GADGET_ID_CUSTOM_COPY_FROM:
15567     case GADGET_ID_CUSTOM_COPY_TO:
15568     case GADGET_ID_CUSTOM_EXCHANGE:
15569       last_custom_copy_mode = id;
15570       last_drawing_function = drawing_function;
15571       break;
15572
15573     case GADGET_ID_CUSTOM_COPY:
15574       CopyCustomElement(properties_element, -1, id);
15575       break;
15576
15577     case GADGET_ID_CUSTOM_PASTE:
15578       CopyCustomElement(-1, properties_element, id);
15579       break;
15580
15581     case GADGET_ID_UNDO:
15582       if (button < 0)   // keep button value (even if modifier keys are pressed)
15583         button = -button;
15584       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
15585         button = 3;
15586
15587       if (button == 1 && undo_buffer_steps == 0)
15588       {
15589         Request("Undo buffer empty!", REQ_CONFIRM);
15590
15591         break;
15592       }
15593       else if (button == 2)
15594       {
15595         break;
15596       }
15597       else if (button == 3 && redo_buffer_steps == 0)
15598       {
15599         Request("Redo buffer empty!", REQ_CONFIRM);
15600
15601         break;
15602       }
15603
15604       if (edit_mode != ED_MODE_DRAWING)
15605         ChangeEditModeWindow(ED_MODE_DRAWING);
15606
15607       if (button == 1)
15608       {
15609         // undo
15610
15611         undo_buffer_position =
15612           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
15613
15614         undo_buffer_steps--;
15615         redo_buffer_steps++;
15616       }
15617       else
15618       {
15619         // redo
15620
15621         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
15622
15623         undo_buffer_steps++;
15624         redo_buffer_steps--;
15625       }
15626
15627       for (x = 0; x < lev_fieldx; x++)
15628         for (y = 0; y < lev_fieldy; y++)
15629           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
15630
15631       // check if undo operation forces change of border style
15632       CheckLevelBorderElement(FALSE);
15633
15634       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15635
15636       break;
15637
15638     case GADGET_ID_CONF:
15639       if (edit_mode != ED_MODE_LEVELCONFIG)
15640       {
15641         last_edit_mode = edit_mode;
15642
15643         ChangeEditModeWindow(ED_MODE_LEVELCONFIG);
15644       }
15645       else
15646       {
15647         ChangeEditModeWindow(ED_MODE_DRAWING);
15648       }
15649       break;
15650
15651     case GADGET_ID_CLEAR:
15652       if (edit_mode != ED_MODE_DRAWING)
15653         ChangeEditModeWindow(ED_MODE_DRAWING);
15654
15655       for (x = 0; x < MAX_LEV_FIELDX; x++)
15656         for (y = 0; y < MAX_LEV_FIELDY; y++)
15657           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
15658
15659       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
15660
15661       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
15662       break;
15663
15664     case GADGET_ID_SAVE:
15665     {
15666       // saving read-only levels into personal level set modifies global vars
15667       // "leveldir_current" and "level_nr"; restore them after saving level
15668       LevelDirTree *leveldir_former = leveldir_current;
15669       int level_nr_former = level_nr;
15670       char *level_filename;
15671       boolean new_level;
15672
15673       if (leveldir_current->readonly &&
15674           !PrepareSavingIntoPersonalLevelSet())
15675         break;
15676
15677       level_filename = getDefaultLevelFilename(level_nr);
15678       new_level = !fileExists(level_filename);
15679
15680       if (new_level ||
15681           Request("Save this level and kill the old?", REQ_ASK))
15682       {
15683         if (leveldir_former->readonly)
15684           ModifyLevelConfigForSavingIntoPersonalLevelSet(leveldir_former->name);
15685
15686         SetAutomaticNumberOfGemsNeeded();
15687
15688         CopyPlayfield(Tile, level.field);
15689         SaveLevel(level_nr);
15690
15691         level.changed = FALSE;
15692
15693         if (new_level)
15694         {
15695           char level_saved_msg[64];
15696
15697           if (leveldir_former->readonly)
15698             sprintf(level_saved_msg,
15699                     "Level saved as level %d into personal level set!",
15700                     level_nr);
15701           else
15702             strcpy(level_saved_msg, "Level saved!");
15703
15704           Request(level_saved_msg, REQ_CONFIRM);
15705         }
15706       }
15707
15708       // "cd" back to copied-from levelset (in case of saved read-only level)
15709       leveldir_current = leveldir_former;
15710       level_nr = level_nr_former;
15711
15712       break;
15713     }
15714
15715     case GADGET_ID_TEST:
15716       if (LevelChanged())
15717         level.game_version = GAME_VERSION_ACTUAL;
15718
15719       CopyPlayfield(level.field, TileBackup);
15720       CopyPlayfield(Tile, level.field);
15721
15722       CopyNativeLevel_RND_to_Native(&level);
15723
15724       UnmapLevelEditorGadgets();
15725       UndrawSpecialEditorDoor();
15726
15727       CloseDoor(DOOR_CLOSE_ALL);
15728
15729       // needed before playing if editor playfield area has different size
15730       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
15731
15732       // redraw_mask = REDRAW_ALL;
15733
15734       level_editor_test_game = TRUE;
15735
15736       StartGameActions(FALSE, setup.autorecord, level.random_seed);
15737
15738       break;
15739
15740     case GADGET_ID_EXIT:
15741       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
15742       break;
15743
15744     default:
15745       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
15746           id <= GADGET_ID_ELEMENTLIST_LAST)
15747       {
15748         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
15749
15750         new_element = editor_elements[element_position + element_shift];
15751
15752         if (IS_EDITOR_CASCADE(new_element))
15753         {
15754           int i;
15755
15756           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
15757           {
15758             int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
15759             boolean *cascade_value = editor_elements_info[i].setup_cascade_value;
15760
15761             if (*cascade_element == new_element)
15762             {
15763               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
15764               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
15765
15766               // update element selection list
15767               ReinitializeElementList();
15768               ModifyEditorElementList();
15769
15770               // update cascading gadget info text
15771               PrintEditorGadgetInfoText(level_editor_gadget[id]);
15772
15773               // save current editor cascading state
15774               SaveSetup_EditorCascade();
15775
15776               break;
15777             }
15778           }
15779
15780           break;
15781         }
15782
15783         if (last_custom_copy_mode != -1)
15784         {
15785           if (CopyCustomElement(properties_element, new_element,
15786                                 last_custom_copy_mode))
15787           {
15788             ClickOnGadget(level_editor_gadget[last_drawing_function],
15789                           MB_LEFTBUTTON);
15790
15791             last_custom_copy_mode = -1;
15792           }
15793
15794           break;
15795         }
15796
15797         // change element of button used to show palette
15798         if (editor.palette.show_on_element_buttons)
15799           button = last_button;
15800
15801         PickDrawingElement(button, new_element);
15802
15803         if (!stick_element_properties_window &&
15804             drawing_function != GADGET_ID_PICK_ELEMENT &&
15805             !(GetKeyModState() & KMOD_Control))
15806         {
15807           properties_element = new_element;
15808           if (edit_mode == ED_MODE_PROPERTIES)
15809             DrawPropertiesWindow();
15810         }
15811
15812         if (drawing_function == GADGET_ID_PICK_ELEMENT)
15813           ClickOnGadget(level_editor_gadget[last_drawing_function],
15814                         MB_LEFTBUTTON);
15815
15816         if (!use_permanent_palette)
15817           ChangeEditModeWindow(last_edit_mode);
15818       }
15819 #ifdef DEBUG
15820       else if (gi->event.type == GD_EVENT_PRESSED)
15821         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
15822       else if (gi->event.type == GD_EVENT_RELEASED)
15823         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
15824       else if (gi->event.type == GD_EVENT_MOVING)
15825         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
15826       else
15827         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
15828 #endif
15829       break;
15830   }
15831 }
15832
15833 void HandleLevelEditorKeyInput(Key key)
15834 {
15835   char letter = getCharFromKey(key);
15836
15837   if (drawing_function == GADGET_ID_TEXT &&
15838       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
15839   {
15840     if (letter)
15841       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
15842     else if (key == KSYM_Delete || key == KSYM_BackSpace)
15843       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
15844     else if (key == KSYM_Return)
15845       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
15846     else if (key == KSYM_Escape)
15847       DrawLevelText(0, 0, 0, TEXT_END);
15848
15849     return;
15850   }
15851
15852   int id = GADGET_ID_NONE;
15853   int new_element_shift = element_shift;
15854   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
15855   int button = MB_LEFTBUTTON;
15856   int i;
15857
15858   switch (key)
15859   {
15860     case KSYM_Left:
15861       id = GADGET_ID_SCROLL_LEFT;
15862       break;
15863     case KSYM_Right:
15864       id = GADGET_ID_SCROLL_RIGHT;
15865       break;
15866     case KSYM_Up:
15867       id = GADGET_ID_SCROLL_UP;
15868       break;
15869     case KSYM_Down:
15870       id = GADGET_ID_SCROLL_DOWN;
15871       break;
15872
15873     case KSYM_Page_Up:
15874     case KSYM_Page_Down:
15875       step *= (key == KSYM_Page_Up ? -1 : +1);
15876       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
15877
15878       if (element_shift < 0)
15879         element_shift = 0;
15880       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15881         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15882
15883       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15884                    GDI_SCROLLBAR_ITEM_POSITION,
15885                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15886
15887       ModifyEditorElementList();
15888
15889       break;
15890
15891     case KSYM_Home:
15892     case KSYM_End:
15893       element_shift = (key == KSYM_Home ? 0 :
15894                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
15895
15896       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15897                    GDI_SCROLLBAR_ITEM_POSITION,
15898                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15899
15900       ModifyEditorElementList();
15901
15902       break;
15903
15904     case KSYM_Insert:
15905     case KSYM_Delete:
15906
15907       // this is needed to prevent interference with running "True X-Mouse"
15908       if (GetKeyModStateFromEvents() & KMOD_Control)
15909         break;
15910
15911       // check for last or next editor cascade block in element list
15912       for (i = 0; i < num_editor_elements; i++)
15913       {
15914         if ((key == KSYM_Insert && i == element_shift) ||
15915             (key == KSYM_Delete && new_element_shift > element_shift))
15916           break;
15917
15918         // jump to next cascade block (or to start of element list)
15919         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
15920           new_element_shift = i;
15921       }
15922
15923       if (i < num_editor_elements)
15924         element_shift = new_element_shift;
15925
15926       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
15927         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
15928
15929       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
15930                    GDI_SCROLLBAR_ITEM_POSITION,
15931                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
15932
15933       ModifyEditorElementList();
15934
15935       break;
15936
15937     case KSYM_Escape:
15938       if (edit_mode == ED_MODE_DRAWING)
15939         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
15940       else if (edit_mode == ED_MODE_LEVELCONFIG)
15941         HandleControlButtons(level_editor_gadget[GADGET_ID_CONF]);
15942       else if (edit_mode == ED_MODE_PROPERTIES)
15943         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
15944       else if (edit_mode == ED_MODE_PALETTE)
15945         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
15946       else              // should never happen
15947         ChangeEditModeWindow(ED_MODE_DRAWING);
15948
15949       break;
15950
15951     default:
15952       break;
15953   }
15954
15955   if (id != GADGET_ID_NONE)
15956     ClickOnGadget(level_editor_gadget[id], button);
15957   else if (letter == '1' || letter == '?')
15958     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
15959   else if (letter == '2')
15960     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
15961   else if (letter == '3')
15962     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
15963   else if (letter == '.')
15964     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
15965   else if (letter == 'U')
15966     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
15967   else if (letter == '-' || key == KSYM_KP_Subtract)
15968     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
15969   else if (letter == '0' || key == KSYM_KP_0)
15970     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
15971   else if (letter == '+' || key == KSYM_KP_Add ||
15972            letter == '=')       // ("Shift-=" is "+" on US keyboards)
15973     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
15974   else if (key == KSYM_Return ||
15975            key == KSYM_space ||
15976            key == setup.shortcut.toggle_pause)
15977     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
15978   else
15979     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
15980       if (letter && letter == controlbutton_info[i].shortcut)
15981         if (!anyTextGadgetActive())
15982           ClickOnGadget(level_editor_gadget[i], button);
15983
15984   if (draw_with_brush)
15985   {
15986     if (letter == 'x')
15987       FlipBrushX();
15988     else if (letter == 'y')
15989       FlipBrushY();
15990     else if (letter == 'z')
15991       RotateBrush();
15992   }
15993 }
15994
15995 static void HandleLevelEditorIdle_Properties(void)
15996 {
15997   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
15998   int x = editor.settings.element_graphic.x + element_border;
15999   int y = editor.settings.element_graphic.y + element_border;
16000   static DelayCounter action_delay = { 0 };
16001   int i;
16002
16003   action_delay.value = GameFrameDelay;
16004
16005   if (!DelayReached(&action_delay))
16006     return;
16007
16008   for (i = 0; i < ED_NUM_SELECTBOX; i++)
16009   {
16010     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
16011
16012     if (gi->mapped && gi->active && gi->selectbox.open)
16013       return;
16014   }
16015
16016   DrawEditorElementAnimation(SX + x, SY + y);
16017
16018   redraw_mask |= REDRAW_FIELD;
16019
16020   FrameCounter++;       // increase animation frame counter
16021 }
16022
16023 static void HandleLevelEditorIdle_Drawing(void)
16024 {
16025   static boolean last_highlighted = FALSE;
16026   static boolean last_highlighted_similar = FALSE;
16027   boolean highlighted = (GetKeyModState() & KMOD_Alt);
16028   boolean highlighted_similar = (GetKeyModState() & KMOD_Shift);
16029
16030   if (highlighted != last_highlighted ||
16031       (highlighted && highlighted_similar != last_highlighted_similar))
16032   {
16033     DrawAreaElementHighlight(highlighted, highlighted_similar);
16034
16035     redraw_mask |= REDRAW_FIELD;
16036   }
16037
16038   last_highlighted = highlighted;
16039   last_highlighted_similar = highlighted_similar;
16040 }
16041
16042 void HandleLevelEditorIdle(void)
16043 {
16044   if (edit_mode == ED_MODE_PROPERTIES)
16045     HandleLevelEditorIdle_Properties();
16046   else if (edit_mode == ED_MODE_DRAWING)
16047     HandleLevelEditorIdle_Drawing();
16048 }
16049
16050 static void ClearEditorGadgetInfoText(void)
16051 {
16052   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
16053 }
16054
16055 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
16056 {
16057   char infotext[MAX_OUTPUT_LINESIZE + 1];
16058   int max_infotext_len = getMaxInfoTextLength();
16059
16060   if (gi == NULL || strlen(gi->info_text) == 0)
16061     return;
16062
16063   strncpy(infotext, gi->info_text, max_infotext_len);
16064   infotext[max_infotext_len] = '\0';
16065
16066   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
16067   {
16068     int key = controlbutton_info[gi->custom_id].shortcut;
16069
16070     if (key)
16071     {
16072       char shortcut[MAX_OUTPUT_LINESIZE + 1];
16073
16074       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
16075         sprintf(shortcut, " ('.' or '%c')", key);
16076       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
16077         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
16078       else if (gi->custom_id == GADGET_ID_TEST)
16079         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
16080       else if (gi->custom_id == GADGET_ID_UNDO)
16081         sprintf(shortcut, " ('%c/Shift-U')", key);
16082       else if (gi->custom_id == GADGET_ID_ZOOM)
16083         sprintf(shortcut, " ('%c', '0', '-')", key);
16084       else
16085         sprintf(shortcut, " ('%s%c')",
16086                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
16087
16088       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
16089         strcat(infotext, shortcut);
16090     }
16091   }
16092
16093   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
16094 }
16095
16096 void HandleEditorGadgetInfoText(void *ptr)
16097 {
16098   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
16099
16100   if (game_status != GAME_MODE_EDITOR)
16101     return;
16102
16103   ClearEditorGadgetInfoText();
16104
16105   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
16106     return;
16107
16108   // misuse this function to delete brush cursor, if needed
16109   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
16110     DeleteBrushFromCursor();
16111
16112   PrintEditorGadgetInfoText(gi);
16113 }
16114
16115 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
16116 {
16117   int id = gi->custom_id;
16118   int type_id = gi->custom_type_id;
16119   int sx = gi->event.x;
16120   int sy = gi->event.y;
16121   int lx = sx + level_xpos;
16122   int ly = sy + level_ypos;
16123   int min_sx = 0, min_sy = 0;
16124   int max_sx = gi->drawing.area_xsize - 1;
16125   int max_sy = gi->drawing.area_ysize - 1;
16126   int actual_drawing_function = drawing_function;
16127   int max_infotext_len = getMaxInfoTextLength();
16128   char infotext[MAX_OUTPUT_LINESIZE + 1];
16129
16130   infotext[0] = '\0';           // start with empty info text
16131
16132   // pressed Control key: simulate picking element
16133   if (GetKeyModState() & KMOD_Control)
16134     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
16135
16136   ClearEditorGadgetInfoText();
16137
16138   if (gi->event.type == GD_EVENT_INFO_LEAVING)
16139     return;
16140
16141   // make sure to stay inside drawing area boundaries
16142   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
16143   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
16144
16145   if (id == GADGET_ID_DRAWING_LEVEL)
16146   {
16147     if (button_status)
16148     {
16149       int min_lx = 0, min_ly = 0;
16150       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
16151
16152       // get positions inside level field
16153       lx = sx + level_xpos;
16154       ly = sy + level_ypos;
16155
16156       // make sure to stay inside level field boundaries
16157       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
16158       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
16159
16160       // correct drawing area positions accordingly
16161       sx = lx - level_xpos;
16162       sy = ly - level_ypos;
16163     }
16164
16165     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16166     {
16167       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
16168       {
16169         static int start_lx = 0;
16170         static int start_ly = 0;
16171         char *text;
16172
16173         if (gi->event.type == GD_EVENT_PRESSED)
16174         {
16175           start_lx = lx;
16176           start_ly = ly;
16177         }
16178
16179         switch (actual_drawing_function)
16180         {
16181           case GADGET_ID_SINGLE_ITEMS:
16182             text = "Drawing single items";
16183             break;
16184           case GADGET_ID_CONNECTED_ITEMS:
16185             text = "Drawing connected items";
16186             break;
16187           case GADGET_ID_LINE:
16188             text = "Drawing line";
16189             break;
16190           case GADGET_ID_ARC:
16191             text = "Drawing arc";
16192             break;
16193           case GADGET_ID_TEXT:
16194             text = "Setting text cursor";
16195             break;
16196           case GADGET_ID_RECTANGLE:
16197             text = "Drawing rectangle";
16198             break;
16199           case GADGET_ID_FILLED_BOX:
16200             text = "Drawing filled box";
16201             break;
16202           case GADGET_ID_FLOOD_FILL:
16203             text = "Flood fill";
16204             break;
16205           case GADGET_ID_GRAB_BRUSH:
16206             text = "Grabbing brush";
16207             break;
16208           case GADGET_ID_PICK_ELEMENT:
16209             text = "Picking element";
16210             break;
16211
16212           default:
16213             text = "Drawing position";
16214             break;
16215         }
16216
16217         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16218           sprintf(infotext, "%s: %d, %d", text, lx, ly);
16219         else
16220           sprintf(infotext, "%s: %d, %d", text,
16221                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
16222       }
16223       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16224         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
16225       else
16226         sprintf(infotext, "Level position: %d, %d", lx, ly);
16227     }
16228
16229     // misuse this function to draw brush cursor, if needed
16230     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
16231     {
16232       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
16233         CopyBrushToCursor(sx, sy);
16234       else
16235         DeleteBrushFromCursor();
16236     }
16237
16238     if (!draw_with_brush)
16239       UpdateBrushPosition(sx, sy);
16240   }
16241   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
16242   {
16243     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
16244     int element = drawingarea_info[type_id].value[pos];
16245
16246     strncpy(infotext, getElementInfoText(element), max_infotext_len);
16247   }
16248   else
16249   {
16250     if (id == GADGET_ID_CUSTOM_CONTENT)
16251       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
16252     else if (id == GADGET_ID_GROUP_CONTENT)
16253       sprintf(infotext, "group element position: %d", sx + 1);
16254     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
16255              id <= GADGET_ID_YAMYAM_CONTENT_7)
16256       sprintf(infotext, "content area %d position: %d, %d",
16257               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
16258     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
16259              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
16260       sprintf(infotext, "content area %d position: %d, %d",
16261               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
16262     else if (id == GADGET_ID_ANDROID_CONTENT)
16263       sprintf(infotext, "android element position: %d", sx + 1);
16264     else if (drawingarea_info[type_id].infotext != NULL)
16265       strcpy(infotext, drawingarea_info[type_id].infotext);
16266   }
16267
16268   infotext[max_infotext_len] = '\0';
16269
16270   if (strlen(infotext) > 0)
16271     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
16272 }
16273
16274 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
16275                             boolean quick_quit)
16276 {
16277   if (!ask_if_level_has_changed ||
16278       !LevelChanged() ||
16279       Request("Level has changed! Exit without saving?",
16280               REQ_ASK | REQ_STAY_OPEN))
16281   {
16282     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
16283     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
16284
16285     // draw normal door
16286     UndrawSpecialEditorDoor();
16287
16288     // use door animation if door 1 viewport is unchanged and contains toolbox
16289     if (useEditorDoorAnimation())
16290       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
16291
16292     // close editor doors if viewport definition is the same as in main menu
16293     if (vp_door_1->x      == DX     &&
16294         vp_door_1->y      == DY     &&
16295         vp_door_1->width  == DXSIZE &&
16296         vp_door_1->height == DYSIZE &&
16297         vp_door_2->x      == VX     &&
16298         vp_door_2->y      == VY     &&
16299         vp_door_2->width  == VXSIZE &&
16300         vp_door_2->height == VYSIZE)
16301       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
16302     else
16303       SetDoorState(DOOR_CLOSE_ALL);
16304
16305     BackToFront();
16306
16307     if (quick_quit)
16308       FadeSkipNextFadeIn();
16309
16310     SetGameStatus(GAME_MODE_MAIN);
16311
16312     DrawMainMenu();
16313   }
16314   else
16315   {
16316     if (!global.use_envelope_request)
16317     {
16318       CloseDoor(DOOR_CLOSE_1);
16319       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
16320     }
16321   }
16322 }