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 //                  http://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   -----------------------------------------------------------------------------
  30   screen and artwork graphic pixel position definitions
  31   -----------------------------------------------------------------------------
  32 */
  33
  34 /* values for the control window */
  35 #define ED_CTRL1_BUTTONS_HORIZ          4       /* toolbox */
  36 #define ED_CTRL1_BUTTONS_VERT           4
  37 #define ED_CTRL2_BUTTONS_HORIZ          3       /* level */
  38 #define ED_CTRL2_BUTTONS_VERT           2
  39 #define ED_CTRL3_BUTTONS_HORIZ          3       /* CE and GE */
  40 #define ED_CTRL3_BUTTONS_VERT           1
  41 #define ED_CTRL4_BUTTONS_HORIZ          2       /* CE and GE */
  42 #define ED_CTRL4_BUTTONS_VERT           1
  43 #define ED_CTRL5_BUTTONS_HORIZ          1       /* properties */
  44 #define ED_CTRL5_BUTTONS_VERT           1
  45 #define ED_CTRL6_BUTTONS_HORIZ          3       /* properties */
  46 #define ED_CTRL6_BUTTONS_VERT           1
  47 #define ED_CTRL7_BUTTONS_HORIZ          1       /* palette */
  48 #define ED_CTRL7_BUTTONS_VERT           1
  49
  50 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  51 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  52 #define ED_NUM_CTRL3_BUTTONS   (ED_CTRL3_BUTTONS_HORIZ * ED_CTRL3_BUTTONS_VERT)
  53 #define ED_NUM_CTRL4_BUTTONS   (ED_CTRL4_BUTTONS_HORIZ * ED_CTRL4_BUTTONS_VERT)
  54 #define ED_NUM_CTRL5_BUTTONS   (ED_CTRL5_BUTTONS_HORIZ * ED_CTRL5_BUTTONS_VERT)
  55 #define ED_NUM_CTRL6_BUTTONS   (ED_CTRL6_BUTTONS_HORIZ * ED_CTRL6_BUTTONS_VERT)
  56 #define ED_NUM_CTRL7_BUTTONS   (ED_CTRL7_BUTTONS_HORIZ * ED_CTRL7_BUTTONS_VERT)
  57 #define ED_NUM_CTRL1_2_BUTTONS (ED_NUM_CTRL1_BUTTONS   + ED_NUM_CTRL2_BUTTONS)
  58 #define ED_NUM_CTRL1_3_BUTTONS (ED_NUM_CTRL1_2_BUTTONS + ED_NUM_CTRL3_BUTTONS)
  59 #define ED_NUM_CTRL1_4_BUTTONS (ED_NUM_CTRL1_3_BUTTONS + ED_NUM_CTRL4_BUTTONS)
  60 #define ED_NUM_CTRL1_5_BUTTONS (ED_NUM_CTRL1_4_BUTTONS + ED_NUM_CTRL5_BUTTONS)
  61 #define ED_NUM_CTRL1_6_BUTTONS (ED_NUM_CTRL1_5_BUTTONS + ED_NUM_CTRL6_BUTTONS)
  62 #define ED_NUM_CTRL1_7_BUTTONS (ED_NUM_CTRL1_6_BUTTONS + ED_NUM_CTRL7_BUTTONS)
  63 #define ED_NUM_CTRL_BUTTONS    ED_NUM_CTRL1_7_BUTTONS
  64
  65 /* values for the element list */
  66 #define ED_ELEMENTLIST_XPOS             (editor.palette.x)
  67 #define ED_ELEMENTLIST_YPOS             (editor.palette.y)
  68 #define ED_ELEMENTLIST_XSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].width)
  69 #define ED_ELEMENTLIST_YSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].height)
  70 #define ED_ELEMENTLIST_BUTTONS_HORIZ    (editor.palette.cols)
  71 #define ED_ELEMENTLIST_BUTTONS_VERT     (editor.palette.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_XPOS           SX
 350 #define INFOTEXT_YPOS           (SY + SYSIZE - INFOTEXT_YSIZE)
 351
 352
 353 /*
 354   -----------------------------------------------------------------------------
 355   editor gadget definitions
 356   -----------------------------------------------------------------------------
 357 */
 358
 359 /* drawing toolbox buttons */
 360 #define GADGET_ID_NONE                  -1
 361 #define GADGET_ID_TOOLBOX_FIRST         0
 362
 363 #define GADGET_ID_SINGLE_ITEMS          (GADGET_ID_TOOLBOX_FIRST + 0)
 364 #define GADGET_ID_CONNECTED_ITEMS       (GADGET_ID_TOOLBOX_FIRST + 1)
 365 #define GADGET_ID_LINE                  (GADGET_ID_TOOLBOX_FIRST + 2)
 366 #define GADGET_ID_ARC                   (GADGET_ID_TOOLBOX_FIRST + 3)
 367 #define GADGET_ID_RECTANGLE             (GADGET_ID_TOOLBOX_FIRST + 4)
 368 #define GADGET_ID_FILLED_BOX            (GADGET_ID_TOOLBOX_FIRST + 5)
 369 #define GADGET_ID_WRAP_UP               (GADGET_ID_TOOLBOX_FIRST + 6)
 370 #define GADGET_ID_TEXT                  (GADGET_ID_TOOLBOX_FIRST + 7)
 371 #define GADGET_ID_FLOOD_FILL            (GADGET_ID_TOOLBOX_FIRST + 8)
 372 #define GADGET_ID_WRAP_LEFT             (GADGET_ID_TOOLBOX_FIRST + 9)
 373 #define GADGET_ID_ZOOM                  (GADGET_ID_TOOLBOX_FIRST + 10)
 374 #define GADGET_ID_WRAP_RIGHT            (GADGET_ID_TOOLBOX_FIRST + 11)
 375 #define GADGET_ID_RANDOM_PLACEMENT      (GADGET_ID_TOOLBOX_FIRST + 12)
 376 #define GADGET_ID_GRAB_BRUSH            (GADGET_ID_TOOLBOX_FIRST + 13)
 377 #define GADGET_ID_WRAP_DOWN             (GADGET_ID_TOOLBOX_FIRST + 14)
 378 #define GADGET_ID_PICK_ELEMENT          (GADGET_ID_TOOLBOX_FIRST + 15)
 379
 380 #define GADGET_ID_UNDO                  (GADGET_ID_TOOLBOX_FIRST + 16)
 381 #define GADGET_ID_INFO                  (GADGET_ID_TOOLBOX_FIRST + 17)
 382 #define GADGET_ID_SAVE                  (GADGET_ID_TOOLBOX_FIRST + 18)
 383 #define GADGET_ID_CLEAR                 (GADGET_ID_TOOLBOX_FIRST + 19)
 384 #define GADGET_ID_TEST                  (GADGET_ID_TOOLBOX_FIRST + 20)
 385 #define GADGET_ID_EXIT                  (GADGET_ID_TOOLBOX_FIRST + 21)
 386
 387 #define GADGET_ID_CUSTOM_COPY_FROM      (GADGET_ID_TOOLBOX_FIRST + 22)
 388 #define GADGET_ID_CUSTOM_COPY_TO        (GADGET_ID_TOOLBOX_FIRST + 23)
 389 #define GADGET_ID_CUSTOM_EXCHANGE       (GADGET_ID_TOOLBOX_FIRST + 24)
 390 #define GADGET_ID_CUSTOM_COPY           (GADGET_ID_TOOLBOX_FIRST + 25)
 391 #define GADGET_ID_CUSTOM_PASTE          (GADGET_ID_TOOLBOX_FIRST + 26)
 392
 393 #define GADGET_ID_PROPERTIES            (GADGET_ID_TOOLBOX_FIRST + 27)
 394 #define GADGET_ID_ELEMENT_LEFT          (GADGET_ID_TOOLBOX_FIRST + 28)
 395 #define GADGET_ID_ELEMENT_MIDDLE        (GADGET_ID_TOOLBOX_FIRST + 29)
 396 #define GADGET_ID_ELEMENT_RIGHT         (GADGET_ID_TOOLBOX_FIRST + 30)
 397 #define GADGET_ID_PALETTE               (GADGET_ID_TOOLBOX_FIRST + 31)
 398
 399 /* counter gadget identifiers */
 400 #define GADGET_ID_COUNTER_FIRST         (GADGET_ID_TOOLBOX_FIRST + 32)
 401
 402 #define GADGET_ID_SELECT_LEVEL_DOWN     (GADGET_ID_COUNTER_FIRST + 0)
 403 #define GADGET_ID_SELECT_LEVEL_TEXT     (GADGET_ID_COUNTER_FIRST + 1)
 404 #define GADGET_ID_SELECT_LEVEL_UP       (GADGET_ID_COUNTER_FIRST + 2)
 405 #define GADGET_ID_LEVEL_XSIZE_DOWN      (GADGET_ID_COUNTER_FIRST + 3)
 406 #define GADGET_ID_LEVEL_XSIZE_TEXT      (GADGET_ID_COUNTER_FIRST + 4)
 407 #define GADGET_ID_LEVEL_XSIZE_UP        (GADGET_ID_COUNTER_FIRST + 5)
 408 #define GADGET_ID_LEVEL_YSIZE_DOWN      (GADGET_ID_COUNTER_FIRST + 6)
 409 #define GADGET_ID_LEVEL_YSIZE_TEXT      (GADGET_ID_COUNTER_FIRST + 7)
 410 #define GADGET_ID_LEVEL_YSIZE_UP        (GADGET_ID_COUNTER_FIRST + 8)
 411 #define GADGET_ID_LEVEL_RANDOM_DOWN     (GADGET_ID_COUNTER_FIRST + 9)
 412 #define GADGET_ID_LEVEL_RANDOM_TEXT     (GADGET_ID_COUNTER_FIRST + 10)
 413 #define GADGET_ID_LEVEL_RANDOM_UP       (GADGET_ID_COUNTER_FIRST + 11)
 414 #define GADGET_ID_LEVEL_GEMSLIMIT_DOWN  (GADGET_ID_COUNTER_FIRST + 12)
 415 #define GADGET_ID_LEVEL_GEMSLIMIT_TEXT  (GADGET_ID_COUNTER_FIRST + 13)
 416 #define GADGET_ID_LEVEL_GEMSLIMIT_UP    (GADGET_ID_COUNTER_FIRST + 14)
 417 #define GADGET_ID_LEVEL_TIMELIMIT_DOWN  (GADGET_ID_COUNTER_FIRST + 15)
 418 #define GADGET_ID_LEVEL_TIMELIMIT_TEXT  (GADGET_ID_COUNTER_FIRST + 16)
 419 #define GADGET_ID_LEVEL_TIMELIMIT_UP    (GADGET_ID_COUNTER_FIRST + 17)
 420 #define GADGET_ID_LEVEL_TIMESCORE_DOWN  (GADGET_ID_COUNTER_FIRST + 18)
 421 #define GADGET_ID_LEVEL_TIMESCORE_TEXT  (GADGET_ID_COUNTER_FIRST + 19)
 422 #define GADGET_ID_LEVEL_TIMESCORE_UP    (GADGET_ID_COUNTER_FIRST + 20)
 423 #define GADGET_ID_LEVEL_RANDOM_SEED_DOWN (GADGET_ID_COUNTER_FIRST + 21)
 424 #define GADGET_ID_LEVEL_RANDOM_SEED_TEXT (GADGET_ID_COUNTER_FIRST + 22)
 425 #define GADGET_ID_LEVEL_RANDOM_SEED_UP  (GADGET_ID_COUNTER_FIRST + 23)
 426 #define GADGET_ID_ELEMENT_VALUE1_DOWN   (GADGET_ID_COUNTER_FIRST + 24)
 427 #define GADGET_ID_ELEMENT_VALUE1_TEXT   (GADGET_ID_COUNTER_FIRST + 25)
 428 #define GADGET_ID_ELEMENT_VALUE1_UP     (GADGET_ID_COUNTER_FIRST + 26)
 429 #define GADGET_ID_ELEMENT_VALUE2_DOWN   (GADGET_ID_COUNTER_FIRST + 27)
 430 #define GADGET_ID_ELEMENT_VALUE2_TEXT   (GADGET_ID_COUNTER_FIRST + 28)
 431 #define GADGET_ID_ELEMENT_VALUE2_UP     (GADGET_ID_COUNTER_FIRST + 29)
 432 #define GADGET_ID_ELEMENT_VALUE3_DOWN   (GADGET_ID_COUNTER_FIRST + 30)
 433 #define GADGET_ID_ELEMENT_VALUE3_TEXT   (GADGET_ID_COUNTER_FIRST + 31)
 434 #define GADGET_ID_ELEMENT_VALUE3_UP     (GADGET_ID_COUNTER_FIRST + 32)
 435 #define GADGET_ID_ELEMENT_VALUE4_DOWN   (GADGET_ID_COUNTER_FIRST + 33)
 436 #define GADGET_ID_ELEMENT_VALUE4_TEXT   (GADGET_ID_COUNTER_FIRST + 34)
 437 #define GADGET_ID_ELEMENT_VALUE4_UP     (GADGET_ID_COUNTER_FIRST + 35)
 438 #define GADGET_ID_YAMYAM_CONTENT_DOWN   (GADGET_ID_COUNTER_FIRST + 36)
 439 #define GADGET_ID_YAMYAM_CONTENT_TEXT   (GADGET_ID_COUNTER_FIRST + 37)
 440 #define GADGET_ID_YAMYAM_CONTENT_UP     (GADGET_ID_COUNTER_FIRST + 38)
 441 #define GADGET_ID_BALL_CONTENT_DOWN     (GADGET_ID_COUNTER_FIRST + 39)
 442 #define GADGET_ID_BALL_CONTENT_TEXT     (GADGET_ID_COUNTER_FIRST + 40)
 443 #define GADGET_ID_BALL_CONTENT_UP       (GADGET_ID_COUNTER_FIRST + 41)
 444 #define GADGET_ID_ANDROID_CONTENT_DOWN  (GADGET_ID_COUNTER_FIRST + 42)
 445 #define GADGET_ID_ANDROID_CONTENT_TEXT  (GADGET_ID_COUNTER_FIRST + 43)
 446 #define GADGET_ID_ANDROID_CONTENT_UP    (GADGET_ID_COUNTER_FIRST + 44)
 447 #define GADGET_ID_ENVELOPE_XSIZE_DOWN   (GADGET_ID_COUNTER_FIRST + 45)
 448 #define GADGET_ID_ENVELOPE_XSIZE_TEXT   (GADGET_ID_COUNTER_FIRST + 46)
 449 #define GADGET_ID_ENVELOPE_XSIZE_UP     (GADGET_ID_COUNTER_FIRST + 47)
 450 #define GADGET_ID_ENVELOPE_YSIZE_DOWN   (GADGET_ID_COUNTER_FIRST + 48)
 451 #define GADGET_ID_ENVELOPE_YSIZE_TEXT   (GADGET_ID_COUNTER_FIRST + 49)
 452 #define GADGET_ID_ENVELOPE_YSIZE_UP     (GADGET_ID_COUNTER_FIRST + 50)
 453 #define GADGET_ID_INVENTORY_SIZE_DOWN   (GADGET_ID_COUNTER_FIRST + 51)
 454 #define GADGET_ID_INVENTORY_SIZE_TEXT   (GADGET_ID_COUNTER_FIRST + 52)
 455 #define GADGET_ID_INVENTORY_SIZE_UP     (GADGET_ID_COUNTER_FIRST + 53)
 456 #define GADGET_ID_CUSTOM_SCORE_DOWN     (GADGET_ID_COUNTER_FIRST + 54)
 457 #define GADGET_ID_CUSTOM_SCORE_TEXT     (GADGET_ID_COUNTER_FIRST + 55)
 458 #define GADGET_ID_CUSTOM_SCORE_UP       (GADGET_ID_COUNTER_FIRST + 56)
 459 #define GADGET_ID_CUSTOM_GEMCOUNT_DOWN  (GADGET_ID_COUNTER_FIRST + 57)
 460 #define GADGET_ID_CUSTOM_GEMCOUNT_TEXT  (GADGET_ID_COUNTER_FIRST + 58)
 461 #define GADGET_ID_CUSTOM_GEMCOUNT_UP    (GADGET_ID_COUNTER_FIRST + 59)
 462 #define GADGET_ID_CUSTOM_VALUE_FIX_DOWN (GADGET_ID_COUNTER_FIRST + 60)
 463 #define GADGET_ID_CUSTOM_VALUE_FIX_TEXT (GADGET_ID_COUNTER_FIRST + 61)
 464 #define GADGET_ID_CUSTOM_VALUE_FIX_UP   (GADGET_ID_COUNTER_FIRST + 62)
 465 #define GADGET_ID_CUSTOM_VALUE_RND_DOWN (GADGET_ID_COUNTER_FIRST + 63)
 466 #define GADGET_ID_CUSTOM_VALUE_RND_TEXT (GADGET_ID_COUNTER_FIRST + 64)
 467 #define GADGET_ID_CUSTOM_VALUE_RND_UP   (GADGET_ID_COUNTER_FIRST + 65)
 468 #define GADGET_ID_PUSH_DELAY_FIX_DOWN   (GADGET_ID_COUNTER_FIRST + 66)
 469 #define GADGET_ID_PUSH_DELAY_FIX_TEXT   (GADGET_ID_COUNTER_FIRST + 67)
 470 #define GADGET_ID_PUSH_DELAY_FIX_UP     (GADGET_ID_COUNTER_FIRST + 68)
 471 #define GADGET_ID_PUSH_DELAY_RND_DOWN   (GADGET_ID_COUNTER_FIRST + 69)
 472 #define GADGET_ID_PUSH_DELAY_RND_TEXT   (GADGET_ID_COUNTER_FIRST + 70)
 473 #define GADGET_ID_PUSH_DELAY_RND_UP     (GADGET_ID_COUNTER_FIRST + 71)
 474 #define GADGET_ID_DROP_DELAY_FIX_DOWN   (GADGET_ID_COUNTER_FIRST + 72)
 475 #define GADGET_ID_DROP_DELAY_FIX_TEXT   (GADGET_ID_COUNTER_FIRST + 73)
 476 #define GADGET_ID_DROP_DELAY_FIX_UP     (GADGET_ID_COUNTER_FIRST + 74)
 477 #define GADGET_ID_DROP_DELAY_RND_DOWN   (GADGET_ID_COUNTER_FIRST + 75)
 478 #define GADGET_ID_DROP_DELAY_RND_TEXT   (GADGET_ID_COUNTER_FIRST + 76)
 479 #define GADGET_ID_DROP_DELAY_RND_UP     (GADGET_ID_COUNTER_FIRST + 77)
 480 #define GADGET_ID_MOVE_DELAY_FIX_DOWN   (GADGET_ID_COUNTER_FIRST + 78)
 481 #define GADGET_ID_MOVE_DELAY_FIX_TEXT   (GADGET_ID_COUNTER_FIRST + 79)
 482 #define GADGET_ID_MOVE_DELAY_FIX_UP     (GADGET_ID_COUNTER_FIRST + 80)
 483 #define GADGET_ID_MOVE_DELAY_RND_DOWN   (GADGET_ID_COUNTER_FIRST + 81)
 484 #define GADGET_ID_MOVE_DELAY_RND_TEXT   (GADGET_ID_COUNTER_FIRST + 82)
 485 #define GADGET_ID_MOVE_DELAY_RND_UP     (GADGET_ID_COUNTER_FIRST + 83)
 486 #define GADGET_ID_EXPLOSION_DELAY_DOWN  (GADGET_ID_COUNTER_FIRST + 84)
 487 #define GADGET_ID_EXPLOSION_DELAY_TEXT  (GADGET_ID_COUNTER_FIRST + 85)
 488 #define GADGET_ID_EXPLOSION_DELAY_UP    (GADGET_ID_COUNTER_FIRST + 86)
 489 #define GADGET_ID_IGNITION_DELAY_DOWN   (GADGET_ID_COUNTER_FIRST + 87)
 490 #define GADGET_ID_IGNITION_DELAY_TEXT   (GADGET_ID_COUNTER_FIRST + 88)
 491 #define GADGET_ID_IGNITION_DELAY_UP     (GADGET_ID_COUNTER_FIRST + 89)
 492 #define GADGET_ID_CHANGE_DELAY_FIX_DOWN (GADGET_ID_COUNTER_FIRST + 90)
 493 #define GADGET_ID_CHANGE_DELAY_FIX_TEXT (GADGET_ID_COUNTER_FIRST + 91)
 494 #define GADGET_ID_CHANGE_DELAY_FIX_UP   (GADGET_ID_COUNTER_FIRST + 92)
 495 #define GADGET_ID_CHANGE_DELAY_RND_DOWN (GADGET_ID_COUNTER_FIRST + 93)
 496 #define GADGET_ID_CHANGE_DELAY_RND_TEXT (GADGET_ID_COUNTER_FIRST + 94)
 497 #define GADGET_ID_CHANGE_DELAY_RND_UP   (GADGET_ID_COUNTER_FIRST + 95)
 498 #define GADGET_ID_CHANGE_CONT_RND_DOWN  (GADGET_ID_COUNTER_FIRST + 96)
 499 #define GADGET_ID_CHANGE_CONT_RND_TEXT  (GADGET_ID_COUNTER_FIRST + 97)
 500 #define GADGET_ID_CHANGE_CONT_RND_UP    (GADGET_ID_COUNTER_FIRST + 98)
 501 #define GADGET_ID_GROUP_CONTENT_DOWN    (GADGET_ID_COUNTER_FIRST + 99)
 502 #define GADGET_ID_GROUP_CONTENT_TEXT    (GADGET_ID_COUNTER_FIRST + 100)
 503 #define GADGET_ID_GROUP_CONTENT_UP      (GADGET_ID_COUNTER_FIRST + 101)
 504
 505 /* drawing area identifiers */
 506 #define GADGET_ID_DRAWING_AREA_FIRST    (GADGET_ID_COUNTER_FIRST + 102)
 507
 508 #define GADGET_ID_DRAWING_LEVEL         (GADGET_ID_DRAWING_AREA_FIRST + 0)
 509 #define GADGET_ID_YAMYAM_CONTENT_0      (GADGET_ID_DRAWING_AREA_FIRST + 1)
 510 #define GADGET_ID_YAMYAM_CONTENT_1      (GADGET_ID_DRAWING_AREA_FIRST + 2)
 511 #define GADGET_ID_YAMYAM_CONTENT_2      (GADGET_ID_DRAWING_AREA_FIRST + 3)
 512 #define GADGET_ID_YAMYAM_CONTENT_3      (GADGET_ID_DRAWING_AREA_FIRST + 4)
 513 #define GADGET_ID_YAMYAM_CONTENT_4      (GADGET_ID_DRAWING_AREA_FIRST + 5)
 514 #define GADGET_ID_YAMYAM_CONTENT_5      (GADGET_ID_DRAWING_AREA_FIRST + 6)
 515 #define GADGET_ID_YAMYAM_CONTENT_6      (GADGET_ID_DRAWING_AREA_FIRST + 7)
 516 #define GADGET_ID_YAMYAM_CONTENT_7      (GADGET_ID_DRAWING_AREA_FIRST + 8)
 517 #define GADGET_ID_MAGIC_BALL_CONTENT_0  (GADGET_ID_DRAWING_AREA_FIRST + 9)
 518 #define GADGET_ID_MAGIC_BALL_CONTENT_1  (GADGET_ID_DRAWING_AREA_FIRST + 10)
 519 #define GADGET_ID_MAGIC_BALL_CONTENT_2  (GADGET_ID_DRAWING_AREA_FIRST + 11)
 520 #define GADGET_ID_MAGIC_BALL_CONTENT_3  (GADGET_ID_DRAWING_AREA_FIRST + 12)
 521 #define GADGET_ID_MAGIC_BALL_CONTENT_4  (GADGET_ID_DRAWING_AREA_FIRST + 13)
 522 #define GADGET_ID_MAGIC_BALL_CONTENT_5  (GADGET_ID_DRAWING_AREA_FIRST + 14)
 523 #define GADGET_ID_MAGIC_BALL_CONTENT_6  (GADGET_ID_DRAWING_AREA_FIRST + 15)
 524 #define GADGET_ID_MAGIC_BALL_CONTENT_7  (GADGET_ID_DRAWING_AREA_FIRST + 16)
 525 #define GADGET_ID_ANDROID_CONTENT       (GADGET_ID_DRAWING_AREA_FIRST + 17)
 526 #define GADGET_ID_AMOEBA_CONTENT        (GADGET_ID_DRAWING_AREA_FIRST + 18)
 527 #define GADGET_ID_START_ELEMENT         (GADGET_ID_DRAWING_AREA_FIRST + 19)
 528 #define GADGET_ID_ARTWORK_ELEMENT       (GADGET_ID_DRAWING_AREA_FIRST + 20)
 529 #define GADGET_ID_EXPLOSION_ELEMENT     (GADGET_ID_DRAWING_AREA_FIRST + 21)
 530 #define GADGET_ID_INVENTORY_CONTENT     (GADGET_ID_DRAWING_AREA_FIRST + 22)
 531 #define GADGET_ID_CUSTOM_GRAPHIC        (GADGET_ID_DRAWING_AREA_FIRST + 23)
 532 #define GADGET_ID_CUSTOM_CONTENT        (GADGET_ID_DRAWING_AREA_FIRST + 24)
 533 #define GADGET_ID_CUSTOM_MOVE_ENTER     (GADGET_ID_DRAWING_AREA_FIRST + 25)
 534 #define GADGET_ID_CUSTOM_MOVE_LEAVE     (GADGET_ID_DRAWING_AREA_FIRST + 26)
 535 #define GADGET_ID_CUSTOM_CHANGE_TARGET  (GADGET_ID_DRAWING_AREA_FIRST + 27)
 536 #define GADGET_ID_CUSTOM_CHANGE_CONTENT (GADGET_ID_DRAWING_AREA_FIRST + 28)
 537 #define GADGET_ID_CUSTOM_CHANGE_TRIGGER (GADGET_ID_DRAWING_AREA_FIRST + 29)
 538 #define GADGET_ID_CUSTOM_CHANGE_ACTION  (GADGET_ID_DRAWING_AREA_FIRST + 30)
 539 #define GADGET_ID_GROUP_CONTENT         (GADGET_ID_DRAWING_AREA_FIRST + 31)
 540 #define GADGET_ID_RANDOM_BACKGROUND     (GADGET_ID_DRAWING_AREA_FIRST + 32)
 541
 542 /* text input identifiers */
 543 #define GADGET_ID_TEXT_INPUT_FIRST      (GADGET_ID_DRAWING_AREA_FIRST + 33)
 544
 545 #define GADGET_ID_LEVEL_NAME            (GADGET_ID_TEXT_INPUT_FIRST + 0)
 546 #define GADGET_ID_LEVEL_AUTHOR          (GADGET_ID_TEXT_INPUT_FIRST + 1)
 547 #define GADGET_ID_ELEMENT_NAME          (GADGET_ID_TEXT_INPUT_FIRST + 2)
 548
 549 /* text area identifiers */
 550 #define GADGET_ID_TEXT_AREA_FIRST       (GADGET_ID_TEXT_INPUT_FIRST + 3)
 551
 552 #define GADGET_ID_ENVELOPE_INFO         (GADGET_ID_TEXT_AREA_FIRST + 0)
 553
 554 /* selectbox identifiers */
 555 #define GADGET_ID_SELECTBOX_FIRST       (GADGET_ID_TEXT_AREA_FIRST + 1)
 556
 557 #define GADGET_ID_TIME_OR_STEPS         (GADGET_ID_SELECTBOX_FIRST + 0)
 558 #define GADGET_ID_GAME_ENGINE_TYPE      (GADGET_ID_SELECTBOX_FIRST + 1)
 559 #define GADGET_ID_WIND_DIRECTION        (GADGET_ID_SELECTBOX_FIRST + 2)
 560 #define GADGET_ID_PLAYER_SPEED          (GADGET_ID_SELECTBOX_FIRST + 3)
 561 #define GADGET_ID_CUSTOM_WALK_TO_ACTION (GADGET_ID_SELECTBOX_FIRST + 4)
 562 #define GADGET_ID_CUSTOM_EXPLOSION_TYPE (GADGET_ID_SELECTBOX_FIRST + 5)
 563 #define GADGET_ID_CUSTOM_DEADLINESS     (GADGET_ID_SELECTBOX_FIRST + 6)
 564 #define GADGET_ID_CUSTOM_MOVE_PATTERN   (GADGET_ID_SELECTBOX_FIRST + 7)
 565 #define GADGET_ID_CUSTOM_MOVE_DIRECTION (GADGET_ID_SELECTBOX_FIRST + 8)
 566 #define GADGET_ID_CUSTOM_MOVE_STEPSIZE  (GADGET_ID_SELECTBOX_FIRST + 9)
 567 #define GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE (GADGET_ID_SELECTBOX_FIRST + 10)
 568 #define GADGET_ID_CUSTOM_SMASH_TARGETS  (GADGET_ID_SELECTBOX_FIRST + 11)
 569 #define GADGET_ID_CUSTOM_SLIPPERY_TYPE  (GADGET_ID_SELECTBOX_FIRST + 12)
 570 #define GADGET_ID_CUSTOM_ACCESS_TYPE    (GADGET_ID_SELECTBOX_FIRST + 13)
 571 #define GADGET_ID_CUSTOM_ACCESS_LAYER   (GADGET_ID_SELECTBOX_FIRST + 14)
 572 #define GADGET_ID_CUSTOM_ACCESS_PROTECTED (GADGET_ID_SELECTBOX_FIRST + 15)
 573 #define GADGET_ID_CUSTOM_ACCESS_DIRECTION (GADGET_ID_SELECTBOX_FIRST + 16)
 574 #define GADGET_ID_CHANGE_TIME_UNITS     (GADGET_ID_SELECTBOX_FIRST + 17)
 575 #define GADGET_ID_CHANGE_DIRECT_ACTION  (GADGET_ID_SELECTBOX_FIRST + 18)
 576 #define GADGET_ID_CHANGE_OTHER_ACTION   (GADGET_ID_SELECTBOX_FIRST + 19)
 577 #define GADGET_ID_CHANGE_SIDE           (GADGET_ID_SELECTBOX_FIRST + 20)
 578 #define GADGET_ID_CHANGE_PLAYER         (GADGET_ID_SELECTBOX_FIRST + 21)
 579 #define GADGET_ID_CHANGE_PAGE           (GADGET_ID_SELECTBOX_FIRST + 22)
 580 #define GADGET_ID_CHANGE_REPLACE_WHEN   (GADGET_ID_SELECTBOX_FIRST + 23)
 581 #define GADGET_ID_ACTION_TYPE           (GADGET_ID_SELECTBOX_FIRST + 24)
 582 #define GADGET_ID_ACTION_MODE           (GADGET_ID_SELECTBOX_FIRST + 25)
 583 #define GADGET_ID_ACTION_ARG            (GADGET_ID_SELECTBOX_FIRST + 26)
 584 #define GADGET_ID_SELECT_CHANGE_PAGE    (GADGET_ID_SELECTBOX_FIRST + 27)
 585 #define GADGET_ID_GROUP_CHOICE_MODE     (GADGET_ID_SELECTBOX_FIRST + 28)
 586
 587 /* textbutton identifiers */
 588 #define GADGET_ID_TEXTBUTTON_FIRST      (GADGET_ID_SELECTBOX_FIRST + 29)
 589
 590 #define GADGET_ID_LEVELINFO_LEVEL       (GADGET_ID_TEXTBUTTON_FIRST + 0)
 591 #define GADGET_ID_LEVELINFO_EDITOR      (GADGET_ID_TEXTBUTTON_FIRST + 1)
 592 #define GADGET_ID_PROPERTIES_INFO       (GADGET_ID_TEXTBUTTON_FIRST + 2)
 593 #define GADGET_ID_PROPERTIES_CONFIG     (GADGET_ID_TEXTBUTTON_FIRST + 3)
 594 #define GADGET_ID_PROPERTIES_CONFIG_1   (GADGET_ID_TEXTBUTTON_FIRST + 4)
 595 #define GADGET_ID_PROPERTIES_CONFIG_2   (GADGET_ID_TEXTBUTTON_FIRST + 5)
 596 #define GADGET_ID_PROPERTIES_CHANGE     (GADGET_ID_TEXTBUTTON_FIRST + 6)
 597 #define GADGET_ID_SAVE_AS_TEMPLATE_1    (GADGET_ID_TEXTBUTTON_FIRST + 7)
 598 #define GADGET_ID_SAVE_AS_TEMPLATE_2    (GADGET_ID_TEXTBUTTON_FIRST + 8)
 599 #define GADGET_ID_ADD_CHANGE_PAGE       (GADGET_ID_TEXTBUTTON_FIRST + 9)
 600 #define GADGET_ID_DEL_CHANGE_PAGE       (GADGET_ID_TEXTBUTTON_FIRST + 10)
 601
 602 /* graphicbutton identifiers */
 603 #define GADGET_ID_GRAPHICBUTTON_FIRST   (GADGET_ID_TEXTBUTTON_FIRST + 11)
 604
 605 #define GADGET_ID_PREV_CHANGE_PAGE      (GADGET_ID_GRAPHICBUTTON_FIRST + 0)
 606 #define GADGET_ID_NEXT_CHANGE_PAGE      (GADGET_ID_GRAPHICBUTTON_FIRST + 1)
 607 #define GADGET_ID_COPY_CHANGE_PAGE      (GADGET_ID_GRAPHICBUTTON_FIRST + 2)
 608 #define GADGET_ID_PASTE_CHANGE_PAGE     (GADGET_ID_GRAPHICBUTTON_FIRST + 3)
 609
 610 /* gadgets for scrolling of drawing area */
 611 #define GADGET_ID_SCROLLING_FIRST       (GADGET_ID_GRAPHICBUTTON_FIRST + 4)
 612
 613 #define GADGET_ID_SCROLL_UP             (GADGET_ID_SCROLLING_FIRST + 0)
 614 #define GADGET_ID_SCROLL_DOWN           (GADGET_ID_SCROLLING_FIRST + 1)
 615 #define GADGET_ID_SCROLL_LEFT           (GADGET_ID_SCROLLING_FIRST + 2)
 616 #define GADGET_ID_SCROLL_RIGHT          (GADGET_ID_SCROLLING_FIRST + 3)
 617 #define GADGET_ID_SCROLL_HORIZONTAL     (GADGET_ID_SCROLLING_FIRST + 4)
 618 #define GADGET_ID_SCROLL_VERTICAL       (GADGET_ID_SCROLLING_FIRST + 5)
 619
 620 /* gadgets for scrolling element list */
 621 #define GADGET_ID_SCROLLING_LIST_FIRST  (GADGET_ID_SCROLLING_FIRST + 6)
 622
 623 #define GADGET_ID_SCROLL_LIST_UP        (GADGET_ID_SCROLLING_LIST_FIRST + 0)
 624 #define GADGET_ID_SCROLL_LIST_DOWN      (GADGET_ID_SCROLLING_LIST_FIRST + 1)
 625 #define GADGET_ID_SCROLL_LIST_VERTICAL  (GADGET_ID_SCROLLING_LIST_FIRST + 2)
 626
 627 /* checkbuttons/radiobuttons for level/element properties */
 628 #define GADGET_ID_CHECKBUTTON_FIRST     (GADGET_ID_SCROLLING_LIST_FIRST + 3)
 629
 630 #define GADGET_ID_RANDOM_PERCENTAGE     (GADGET_ID_CHECKBUTTON_FIRST + 0)
 631 #define GADGET_ID_RANDOM_QUANTITY       (GADGET_ID_CHECKBUTTON_FIRST + 1)
 632 #define GADGET_ID_RANDOM_RESTRICTED     (GADGET_ID_CHECKBUTTON_FIRST + 2)
 633 #define GADGET_ID_STICK_ELEMENT         (GADGET_ID_CHECKBUTTON_FIRST + 3)
 634 #define GADGET_ID_EM_SLIPPERY_GEMS      (GADGET_ID_CHECKBUTTON_FIRST + 4)
 635 #define GADGET_ID_EM_EXPLODES_BY_FIRE   (GADGET_ID_CHECKBUTTON_FIRST + 5)
 636 #define GADGET_ID_USE_SPRING_BUG        (GADGET_ID_CHECKBUTTON_FIRST + 6)
 637 #define GADGET_ID_USE_TIME_ORB_BUG      (GADGET_ID_CHECKBUTTON_FIRST + 7)
 638 #define GADGET_ID_RANDOM_BALL_CONTENT   (GADGET_ID_CHECKBUTTON_FIRST + 8)
 639 #define GADGET_ID_INITIAL_BALL_STATE    (GADGET_ID_CHECKBUTTON_FIRST + 9)
 640 #define GADGET_ID_GROW_INTO_DIGGABLE    (GADGET_ID_CHECKBUTTON_FIRST + 10)
 641 #define GADGET_ID_AUTO_EXIT_SOKOBAN     (GADGET_ID_CHECKBUTTON_FIRST + 11)
 642 #define GADGET_ID_CONTINUOUS_SNAPPING   (GADGET_ID_CHECKBUTTON_FIRST + 12)
 643 #define GADGET_ID_BLOCK_SNAP_FIELD      (GADGET_ID_CHECKBUTTON_FIRST + 13)
 644 #define GADGET_ID_BLOCK_LAST_FIELD      (GADGET_ID_CHECKBUTTON_FIRST + 14)
 645 #define GADGET_ID_SP_BLOCK_LAST_FIELD   (GADGET_ID_CHECKBUTTON_FIRST + 15)
 646 #define GADGET_ID_INSTANT_RELOCATION    (GADGET_ID_CHECKBUTTON_FIRST + 16)
 647 #define GADGET_ID_SHIFTED_RELOCATION    (GADGET_ID_CHECKBUTTON_FIRST + 17)
 648 #define GADGET_ID_LAZY_RELOCATION       (GADGET_ID_CHECKBUTTON_FIRST + 18)
 649 #define GADGET_ID_USE_START_ELEMENT     (GADGET_ID_CHECKBUTTON_FIRST + 19)
 650 #define GADGET_ID_USE_ARTWORK_ELEMENT   (GADGET_ID_CHECKBUTTON_FIRST + 20)
 651 #define GADGET_ID_USE_EXPLOSION_ELEMENT (GADGET_ID_CHECKBUTTON_FIRST + 21)
 652 #define GADGET_ID_INITIAL_GRAVITY       (GADGET_ID_CHECKBUTTON_FIRST + 22)
 653 #define GADGET_ID_USE_INITIAL_INVENTORY (GADGET_ID_CHECKBUTTON_FIRST + 23)
 654 #define GADGET_ID_CAN_PASS_TO_WALKABLE  (GADGET_ID_CHECKBUTTON_FIRST + 24)
 655 #define GADGET_ID_CAN_FALL_INTO_ACID    (GADGET_ID_CHECKBUTTON_FIRST + 25)
 656 #define GADGET_ID_CAN_MOVE_INTO_ACID    (GADGET_ID_CHECKBUTTON_FIRST + 26)
 657 #define GADGET_ID_DONT_COLLIDE_WITH     (GADGET_ID_CHECKBUTTON_FIRST + 27)
 658 #define GADGET_ID_ENVELOPE_AUTOWRAP     (GADGET_ID_CHECKBUTTON_FIRST + 28)
 659 #define GADGET_ID_ENVELOPE_CENTERED     (GADGET_ID_CHECKBUTTON_FIRST + 29)
 660 #define GADGET_ID_CUSTOM_INDESTRUCTIBLE (GADGET_ID_CHECKBUTTON_FIRST + 30)
 661 #define GADGET_ID_CUSTOM_CAN_EXPLODE    (GADGET_ID_CHECKBUTTON_FIRST + 31)
 662 #define GADGET_ID_CUSTOM_EXPLODE_FIRE   (GADGET_ID_CHECKBUTTON_FIRST + 32)
 663 #define GADGET_ID_CUSTOM_EXPLODE_SMASH  (GADGET_ID_CHECKBUTTON_FIRST + 33)
 664 #define GADGET_ID_CUSTOM_EXPLODE_IMPACT (GADGET_ID_CHECKBUTTON_FIRST + 34)
 665 #define GADGET_ID_CUSTOM_WALK_TO_OBJECT (GADGET_ID_CHECKBUTTON_FIRST + 35)
 666 #define GADGET_ID_CUSTOM_DEADLY         (GADGET_ID_CHECKBUTTON_FIRST + 36)
 667 #define GADGET_ID_CUSTOM_CAN_MOVE       (GADGET_ID_CHECKBUTTON_FIRST + 37)
 668 #define GADGET_ID_CUSTOM_CAN_FALL       (GADGET_ID_CHECKBUTTON_FIRST + 38)
 669 #define GADGET_ID_CUSTOM_CAN_SMASH      (GADGET_ID_CHECKBUTTON_FIRST + 39)
 670 #define GADGET_ID_CUSTOM_SLIPPERY       (GADGET_ID_CHECKBUTTON_FIRST + 40)
 671 #define GADGET_ID_CUSTOM_ACCESSIBLE     (GADGET_ID_CHECKBUTTON_FIRST + 41)
 672 #define GADGET_ID_CUSTOM_GRAV_REACHABLE (GADGET_ID_CHECKBUTTON_FIRST + 42)
 673 #define GADGET_ID_CUSTOM_USE_LAST_VALUE (GADGET_ID_CHECKBUTTON_FIRST + 43)
 674 #define GADGET_ID_CUSTOM_USE_GRAPHIC    (GADGET_ID_CHECKBUTTON_FIRST + 44)
 675 #define GADGET_ID_CUSTOM_USE_TEMPLATE_1 (GADGET_ID_CHECKBUTTON_FIRST + 45)
 676 #define GADGET_ID_CUSTOM_USE_TEMPLATE_2 (GADGET_ID_CHECKBUTTON_FIRST + 46)
 677 #define GADGET_ID_CUSTOM_USE_TEMPLATE_3 (GADGET_ID_CHECKBUTTON_FIRST + 47)
 678 #define GADGET_ID_CUSTOM_CAN_CHANGE     (GADGET_ID_CHECKBUTTON_FIRST + 48)
 679 #define GADGET_ID_CHANGE_USE_CONTENT    (GADGET_ID_CHECKBUTTON_FIRST + 49)
 680 #define GADGET_ID_CHANGE_USE_EXPLOSION  (GADGET_ID_CHECKBUTTON_FIRST + 50)
 681 #define GADGET_ID_CHANGE_ONLY_COMPLETE  (GADGET_ID_CHECKBUTTON_FIRST + 51)
 682 #define GADGET_ID_CHANGE_USE_RANDOM     (GADGET_ID_CHECKBUTTON_FIRST + 52)
 683 #define GADGET_ID_CHANGE_HAS_ACTION     (GADGET_ID_CHECKBUTTON_FIRST + 53)
 684 #define GADGET_ID_CHANGE_DELAY          (GADGET_ID_CHECKBUTTON_FIRST + 54)
 685 #define GADGET_ID_CHANGE_BY_DIRECT_ACT  (GADGET_ID_CHECKBUTTON_FIRST + 55)
 686 #define GADGET_ID_CHANGE_BY_OTHER_ACT   (GADGET_ID_CHECKBUTTON_FIRST + 56)
 687
 688 /* gadgets for buttons in element list */
 689 #define GADGET_ID_ELEMENTLIST_FIRST     (GADGET_ID_CHECKBUTTON_FIRST + 57)
 690 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 691                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 692
 693 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 694
 695 /* radio button numbers */
 696 #define RADIO_NR_NONE                   0
 697 #define RADIO_NR_DRAWING_TOOLBOX        1
 698 #define RADIO_NR_RANDOM_ELEMENTS        2
 699
 700 /* values for counter gadgets */
 701 #define ED_COUNTER_ID_SELECT_LEVEL      0
 702 #define ED_COUNTER_ID_LEVEL_XSIZE       1
 703 #define ED_COUNTER_ID_LEVEL_YSIZE       2
 704 #define ED_COUNTER_ID_LEVEL_GEMSLIMIT   3
 705 #define ED_COUNTER_ID_LEVEL_TIMELIMIT   4
 706 #define ED_COUNTER_ID_LEVEL_TIMESCORE   5
 707 #define ED_COUNTER_ID_LEVEL_RANDOM_SEED 6
 708 #define ED_COUNTER_ID_LEVEL_RANDOM      7
 709 #define ED_COUNTER_ID_ELEMENT_VALUE1    8
 710 #define ED_COUNTER_ID_ELEMENT_VALUE2    9
 711 #define ED_COUNTER_ID_ELEMENT_VALUE3    10
 712 #define ED_COUNTER_ID_ELEMENT_VALUE4    11
 713 #define ED_COUNTER_ID_YAMYAM_CONTENT    12
 714 #define ED_COUNTER_ID_BALL_CONTENT      13
 715 #define ED_COUNTER_ID_ANDROID_CONTENT   14
 716 #define ED_COUNTER_ID_ENVELOPE_XSIZE    15
 717 #define ED_COUNTER_ID_ENVELOPE_YSIZE    16
 718 #define ED_COUNTER_ID_INVENTORY_SIZE    17
 719 #define ED_COUNTER_ID_CUSTOM_SCORE      18
 720 #define ED_COUNTER_ID_CUSTOM_GEMCOUNT   19
 721 #define ED_COUNTER_ID_CUSTOM_VALUE_FIX  20
 722 #define ED_COUNTER_ID_CUSTOM_VALUE_RND  21
 723 #define ED_COUNTER_ID_PUSH_DELAY_FIX    22
 724 #define ED_COUNTER_ID_PUSH_DELAY_RND    23
 725 #define ED_COUNTER_ID_DROP_DELAY_FIX    24
 726 #define ED_COUNTER_ID_DROP_DELAY_RND    25
 727 #define ED_COUNTER_ID_MOVE_DELAY_FIX    26
 728 #define ED_COUNTER_ID_MOVE_DELAY_RND    27
 729 #define ED_COUNTER_ID_EXPLOSION_DELAY   28
 730 #define ED_COUNTER_ID_IGNITION_DELAY    29
 731 #define ED_COUNTER_ID_GROUP_CONTENT     30
 732 #define ED_COUNTER_ID_CHANGE_DELAY_FIX  31
 733 #define ED_COUNTER_ID_CHANGE_DELAY_RND  32
 734 #define ED_COUNTER_ID_CHANGE_CONT_RND   33
 735
 736 #define ED_NUM_COUNTERBUTTONS           34
 737
 738 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 739 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 740 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 741 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 742
 743 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 744 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 745 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 746 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 747 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 748 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 749
 750 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 751 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 752
 753 /* values for scrollbutton gadgets */
 754 #define ED_SCROLLBUTTON_ID_AREA_UP      0
 755 #define ED_SCROLLBUTTON_ID_AREA_DOWN    1
 756 #define ED_SCROLLBUTTON_ID_AREA_LEFT    2
 757 #define ED_SCROLLBUTTON_ID_AREA_RIGHT   3
 758 #define ED_SCROLLBUTTON_ID_LIST_UP      4
 759 #define ED_SCROLLBUTTON_ID_LIST_DOWN    5
 760
 761 #define ED_NUM_SCROLLBUTTONS            6
 762
 763 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 764 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 765
 766 /* values for scrollbar gadgets */
 767 #define ED_SCROLLBAR_ID_AREA_HORIZONTAL 0
 768 #define ED_SCROLLBAR_ID_AREA_VERTICAL   1
 769 #define ED_SCROLLBAR_ID_LIST_VERTICAL   2
 770
 771 #define ED_NUM_SCROLLBARS               3
 772
 773 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 774 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 775
 776 /* values for text input gadgets */
 777 #define ED_TEXTINPUT_ID_LEVEL_NAME      0
 778 #define ED_TEXTINPUT_ID_LEVEL_AUTHOR    1
 779 #define ED_TEXTINPUT_ID_ELEMENT_NAME    2
 780
 781 #define ED_NUM_TEXTINPUT                3
 782
 783 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 784 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 785
 786 /* values for text area gadgets */
 787 #define ED_TEXTAREA_ID_ENVELOPE_INFO    0
 788
 789 #define ED_NUM_TEXTAREAS                        1
 790
 791 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 792 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 793
 794 /* values for selectbox gadgets */
 795 #define ED_SELECTBOX_ID_TIME_OR_STEPS           0
 796 #define ED_SELECTBOX_ID_GAME_ENGINE_TYPE        1
 797 #define ED_SELECTBOX_ID_WIND_DIRECTION          2
 798 #define ED_SELECTBOX_ID_PLAYER_SPEED            3
 799 #define ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE      4
 800 #define ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER     5
 801 #define ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED 6
 802 #define ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION 7
 803 #define ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION   8
 804 #define ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN     9
 805 #define ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION   10
 806 #define ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE    11
 807 #define ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE  12
 808 #define ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS    13
 809 #define ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE    14
 810 #define ED_SELECTBOX_ID_CUSTOM_DEADLINESS       15
 811 #define ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE   16
 812 #define ED_SELECTBOX_ID_CHANGE_TIME_UNITS       17
 813 #define ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION    18
 814 #define ED_SELECTBOX_ID_CHANGE_OTHER_ACTION     19
 815 #define ED_SELECTBOX_ID_CHANGE_SIDE             20
 816 #define ED_SELECTBOX_ID_CHANGE_PLAYER           21
 817 #define ED_SELECTBOX_ID_CHANGE_PAGE             22
 818 #define ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN     23
 819 #define ED_SELECTBOX_ID_ACTION_TYPE             24
 820 #define ED_SELECTBOX_ID_ACTION_MODE             25
 821 #define ED_SELECTBOX_ID_ACTION_ARG              26
 822 #define ED_SELECTBOX_ID_SELECT_CHANGE_PAGE      27
 823 #define ED_SELECTBOX_ID_GROUP_CHOICE_MODE       28
 824
 825 #define ED_NUM_SELECTBOX                        29
 826
 827 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 828 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_WIND_DIRECTION
 829
 830 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 831 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 832 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 833 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 834 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 835 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 836
 837 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 838 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 839
 840 /* values for textbutton gadgets */
 841 #define ED_TEXTBUTTON_ID_LEVELINFO_LEVEL        0
 842 #define ED_TEXTBUTTON_ID_LEVELINFO_EDITOR       1
 843 #define ED_TEXTBUTTON_ID_PROPERTIES_INFO        2
 844 #define ED_TEXTBUTTON_ID_PROPERTIES_CONFIG      3
 845 #define ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1    4
 846 #define ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2    5
 847 #define ED_TEXTBUTTON_ID_PROPERTIES_CHANGE      6
 848 #define ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2     7
 849 #define ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1     8
 850 #define ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE        9
 851 #define ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE        10
 852
 853 #define ED_NUM_TEXTBUTTONS                      11
 854
 855 #define ED_TAB_BUTTON_ID_LEVELINFO_FIRST ED_TEXTBUTTON_ID_LEVELINFO_LEVEL
 856 #define ED_TAB_BUTTON_ID_LEVELINFO_LAST  ED_TEXTBUTTON_ID_LEVELINFO_EDITOR
 857
 858 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
 859 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 860
 861 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
 862 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
 863
 864 /* values for graphicbutton gadgets */
 865 #define ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE    0
 866 #define ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE    1
 867 #define ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE    2
 868 #define ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE   3
 869
 870 #define ED_NUM_GRAPHICBUTTONS                   4
 871
 872 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
 873 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
 874
 875 /* values for checkbutton gadgets */
 876 #define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED     0
 877 #define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3 1
 878 #define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2 2
 879 #define ED_CHECKBUTTON_ID_STICK_ELEMENT         3
 880 #define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS      4
 881 #define ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE   5
 882 #define ED_CHECKBUTTON_ID_USE_SPRING_BUG        6
 883 #define ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG      7
 884 #define ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT   8
 885 #define ED_CHECKBUTTON_ID_INITIAL_BALL_STATE    9
 886 #define ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE    10
 887 #define ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN     11
 888 #define ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING   12
 889 #define ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD      13
 890 #define ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD      14
 891 #define ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD   15
 892 #define ED_CHECKBUTTON_ID_INSTANT_RELOCATION    16
 893 #define ED_CHECKBUTTON_ID_SHIFTED_RELOCATION    17
 894 #define ED_CHECKBUTTON_ID_LAZY_RELOCATION       18
 895 #define ED_CHECKBUTTON_ID_USE_START_ELEMENT     19
 896 #define ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT   20
 897 #define ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT 21
 898 #define ED_CHECKBUTTON_ID_INITIAL_GRAVITY       22
 899 #define ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY 23
 900 #define ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE  24
 901 #define ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID    25
 902 #define ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID    26
 903 #define ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH     27
 904 #define ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP     28
 905 #define ED_CHECKBUTTON_ID_ENVELOPE_CENTERED     29
 906 #define ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC    30
 907 #define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 31
 908 #define ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE     32
 909 #define ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE 33
 910 #define ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE 34
 911 #define ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT 35
 912 #define ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE 36
 913 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE       37
 914 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL       38
 915 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH      39
 916 #define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY       40
 917 #define ED_CHECKBUTTON_ID_CUSTOM_DEADLY         41
 918 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE    42
 919 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE   43
 920 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH  44
 921 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT 45
 922 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE     46
 923 #define ED_CHECKBUTTON_ID_CHANGE_DELAY          47
 924 #define ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT  48
 925 #define ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT   49
 926 #define ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION  50
 927 #define ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT    51
 928 #define ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE  52
 929 #define ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM     53
 930 #define ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION     54
 931
 932 #define ED_NUM_CHECKBUTTONS                     55
 933
 934 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 935 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
 936
 937 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
 938 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
 939 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
 940 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
 941 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
 942 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
 943
 944 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
 945 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
 946
 947 /* values for radiobutton gadgets */
 948 #define ED_RADIOBUTTON_ID_PERCENTAGE    0
 949 #define ED_RADIOBUTTON_ID_QUANTITY      1
 950
 951 #define ED_NUM_RADIOBUTTONS             2
 952
 953 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
 954 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
 955
 956 /* values for drawing area gadgets */
 957 #define ED_DRAWING_ID_DRAWING_LEVEL             0
 958 #define ED_DRAWING_ID_YAMYAM_CONTENT_0          1
 959 #define ED_DRAWING_ID_YAMYAM_CONTENT_1          2
 960 #define ED_DRAWING_ID_YAMYAM_CONTENT_2          3
 961 #define ED_DRAWING_ID_YAMYAM_CONTENT_3          4
 962 #define ED_DRAWING_ID_YAMYAM_CONTENT_4          5
 963 #define ED_DRAWING_ID_YAMYAM_CONTENT_5          6
 964 #define ED_DRAWING_ID_YAMYAM_CONTENT_6          7
 965 #define ED_DRAWING_ID_YAMYAM_CONTENT_7          8
 966 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_0      9
 967 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_1      10
 968 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_2      11
 969 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_3      12
 970 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_4      13
 971 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_5      14
 972 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_6      15
 973 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_7      16
 974 #define ED_DRAWING_ID_ANDROID_CONTENT           17
 975 #define ED_DRAWING_ID_AMOEBA_CONTENT            18
 976 #define ED_DRAWING_ID_START_ELEMENT             19
 977 #define ED_DRAWING_ID_ARTWORK_ELEMENT           20
 978 #define ED_DRAWING_ID_EXPLOSION_ELEMENT         21
 979 #define ED_DRAWING_ID_INVENTORY_CONTENT         22
 980 #define ED_DRAWING_ID_CUSTOM_GRAPHIC            23
 981 #define ED_DRAWING_ID_CUSTOM_CONTENT            24
 982 #define ED_DRAWING_ID_CUSTOM_MOVE_ENTER         25
 983 #define ED_DRAWING_ID_CUSTOM_MOVE_LEAVE         26
 984 #define ED_DRAWING_ID_CUSTOM_CHANGE_TARGET      27
 985 #define ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT     28
 986 #define ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER     29
 987 #define ED_DRAWING_ID_CUSTOM_CHANGE_ACTION      30
 988 #define ED_DRAWING_ID_GROUP_CONTENT             31
 989 #define ED_DRAWING_ID_RANDOM_BACKGROUND         32
 990
 991 #define ED_NUM_DRAWING_AREAS                    33
 992
 993 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
 994 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
 995
 996
 997 /*
 998   -----------------------------------------------------------------------------
 999   some internally used definitions
1000   -----------------------------------------------------------------------------
1001 */
1002
1003 /* values for CopyLevelToUndoBuffer() */
1004 #define UNDO_IMMEDIATE                  0
1005 #define UNDO_ACCUMULATE                 1
1006
1007 /* values for scrollbars */
1008 #define ED_SCROLL_NO                    0
1009 #define ED_SCROLL_LEFT                  1
1010 #define ED_SCROLL_RIGHT                 2
1011 #define ED_SCROLL_UP                    4
1012 #define ED_SCROLL_DOWN                  8
1013
1014 /* screens in the level editor */
1015 #define ED_MODE_DRAWING                 0
1016 #define ED_MODE_INFO                    1
1017 #define ED_MODE_PROPERTIES              2
1018 #define ED_MODE_PALETTE                 3
1019
1020 /* sub-screens in the global settings section */
1021 #define ED_MODE_LEVELINFO_LEVEL         ED_TEXTBUTTON_ID_LEVELINFO_LEVEL
1022 #define ED_MODE_LEVELINFO_EDITOR        ED_TEXTBUTTON_ID_LEVELINFO_EDITOR
1023
1024 /* sub-screens in the element properties section */
1025 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1026 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1027 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1028 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1029 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1030
1031 /* how many steps can be cancelled */
1032 #define NUM_UNDO_STEPS                  (64 + 1)
1033
1034 /* values for elements with score for certain actions */
1035 #define MIN_SCORE                       0
1036 #define MAX_SCORE                       999
1037
1038 /* values for elements with count for collecting */
1039 #define MIN_COLLECT_COUNT               0
1040 #define MAX_COLLECT_COUNT               999
1041
1042 /* values for random placement */
1043 #define RANDOM_USE_PERCENTAGE           0
1044 #define RANDOM_USE_QUANTITY             1
1045
1046 /* default value for element tile size in drawing area */
1047 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1048
1049
1050 /*
1051   -----------------------------------------------------------------------------
1052   some internally used data structure definitions
1053   -----------------------------------------------------------------------------
1054 */
1055
1056 static struct
1057 {
1058   int graphic;
1059   int gadget_id;
1060   struct XYTileSize *pos;
1061   int gadget_type;
1062   char *infotext;
1063   char shortcut;
1064 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1065 {
1066   /* note: some additional characters are already reserved for "cheat mode"
1067      shortcuts (":XYZ" style) -- for details, see "events.c" */
1068
1069   /* ---------- toolbox control buttons ------------------------------------ */
1070
1071   {
1072     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1073     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1074     "draw single items",                        's'
1075   },
1076   {
1077     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1078     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1079     "draw connected items",                     'd'
1080   },
1081   {
1082     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1083     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1084     "draw lines",                               'l'
1085   },
1086   {
1087     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1088     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1089     "draw arcs",                                'a'
1090   },
1091   {
1092     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1093     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1094     "draw outline rectangles",                  'r'
1095   },
1096   {
1097     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1098     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1099     "draw filled rectangles",                   'R'
1100   },
1101   {
1102     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1103     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1104     "wrap (rotate) level up",                   0
1105   },
1106   {
1107     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1108     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1109     "enter text elements",                      't'
1110   },
1111   {
1112     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1113     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1114     "flood fill",                               'f'
1115   },
1116   {
1117     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1118     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1119     "wrap (rotate) level left",                 0
1120   },
1121   {
1122     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1123     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1124     "zoom level tile size",                     '+'
1125   },
1126   {
1127     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1128     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1129     "wrap (rotate) level right",                0
1130   },
1131   {
1132     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1133     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1134     "random element placement",                 0
1135   },
1136   {
1137     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1138     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1139     "grab brush",                               'b'
1140   },
1141   {
1142     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1143     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1144     "wrap (rotate) level down",                 0
1145   },
1146   {
1147     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1148     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1149     "pick drawing element",                     ','
1150   },
1151
1152   /* ---------- level control buttons -------------------------------------- */
1153
1154   {
1155     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1156     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1157     "undo/redo last operation",                 'u'
1158   },
1159   {
1160     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_INFO,
1161     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1162     "properties of level",                      'I'
1163   },
1164   {
1165     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1166     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1167     "save level",                               'S'
1168   },
1169   {
1170     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1171     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1172     "clear level",                              'C'
1173   },
1174   {
1175     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1176     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1177     "test level",                               'T'
1178   },
1179   {
1180     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1181     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1182     "exit level editor",                        'E'
1183   },
1184
1185   /* ---------- CE and GE control buttons ---------------------------------- */
1186
1187   {
1188     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1189     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1190     "copy settings from other element",         0
1191   },
1192   {
1193     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1194     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1195     "copy settings to other element",           0
1196   },
1197   {
1198     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1199     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1200     "exchange element with other element",      0
1201   },
1202   {
1203     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1204     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1205     "copy settings from this element",          0
1206   },
1207   {
1208     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1209     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1210     "paste settings to this element",           0
1211   },
1212
1213   /* ---------- palette control buttons ------------------------------------ */
1214
1215   {
1216     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1217     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1218     "properties of drawing element",            'p'
1219   },
1220   {
1221     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1222     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1223     "properties of drawing element 1",          '1'
1224   },
1225   {
1226     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1227     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1228     "properties of drawing element 2",          '2'
1229   },
1230   {
1231     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1232     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1233     "properties of drawing element 3",          '3'
1234   },
1235   {
1236     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1237     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1238     "show list of elements",                    'e'
1239   }
1240 };
1241
1242 static int random_placement_value = 10;
1243 static int random_placement_method = RANDOM_USE_QUANTITY;
1244 static int random_placement_background_element = EL_SAND;
1245 static boolean random_placement_background_restricted = FALSE;
1246 static boolean stick_element_properties_window = FALSE;
1247 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1248 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1249 static struct ElementChangeInfo custom_element_change;
1250 static struct ElementGroupInfo group_element_info;
1251 static struct ElementInfo custom_element;
1252
1253 static struct
1254 {
1255   int x, y;
1256   int min_value, max_value;
1257   int gadget_id_down, gadget_id_up;
1258   int gadget_id_text;
1259   int gadget_id_align;
1260   int *value;
1261   char *text_above, *text_left, *text_right;
1262 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1263 {
1264   /* ---------- current level number --------------------------------------- */
1265
1266   {
1267     -1, -1,     /* these values are not constant, but can change at runtime */
1268     1,                                  100,
1269     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1270     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1271     &level_nr,
1272     NULL,                               NULL, NULL
1273   },
1274
1275   /* ---------- level and editor settings ---------------------------------- */
1276
1277   {
1278     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1279     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1280     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1281     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1282     &level.fieldx,
1283     "playfield size:",                  NULL, "width",
1284   },
1285   {
1286     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1287     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1288     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1289     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1290     &level.fieldy,
1291     NULL,                               " ", "height",
1292   },
1293   {
1294     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1295     0,                                  999,
1296     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1297     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1298     &level.gems_needed,
1299     NULL,                               "number of gems to collect:", NULL
1300   },
1301   {
1302     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
1303     0,                                  9999,
1304     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1305     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1306     &level.time,
1307     "time or step limit to solve level:", NULL, NULL
1308   },
1309   {
1310     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(9),
1311     0,                                  999,
1312     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1313     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1314     &level.score[SC_TIME_BONUS],
1315     "score for each second/step left:", NULL, NULL
1316   },
1317   {
1318     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
1319     0,                                  9999,
1320     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1321     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1322     &level.random_seed,
1323     NULL,                               "random seed:", "(0 => random)"
1324   },
1325   {
1326     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1327     1,                                  100,
1328     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1329     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1330     &random_placement_value,
1331     "random element placement:",        NULL, "in"
1332   },
1333
1334   /* ---------- element settings: configure (various elements) ------------- */
1335
1336   {
1337     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1338     MIN_SCORE,                          MAX_SCORE,
1339     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1340     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1341     NULL,                               /* will be set when used */
1342     NULL,                               NULL, NULL
1343   },
1344   {
1345     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1346     MIN_SCORE,                          MAX_SCORE,
1347     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1348     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1349     NULL,                               /* will be set when used */
1350     NULL,                               NULL, NULL
1351   },
1352   {
1353     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1354     MIN_SCORE,                          MAX_SCORE,
1355     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1356     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1357     NULL,                               /* will be set when used */
1358     NULL,                               NULL, NULL
1359   },
1360   {
1361     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1362     MIN_SCORE,                          MAX_SCORE,
1363     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1364     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1365     NULL,                               /* will be set when used */
1366     NULL,                               NULL, NULL
1367   },
1368   {
1369     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1370     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1371     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1372     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1373     &level.num_yamyam_contents,
1374     NULL,                               NULL, "number of content areas"
1375   },
1376   {
1377     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1378     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1379     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1380     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1381     &level.num_ball_contents,
1382     NULL,                               NULL, "number of content areas"
1383   },
1384   {
1385     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1386     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1387     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1388     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1389     &level.num_android_clone_elements,
1390     NULL,                               NULL, "number of clonable elements"
1391   },
1392   {
1393     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1394     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1395     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1396     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1397     NULL,                               /* will be set when used */
1398     NULL,                               NULL, "width",
1399   },
1400   {
1401     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1402     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1403     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1404     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1405     NULL,                               /* will be set when used */
1406     NULL,                               " ", "height",
1407   },
1408   {
1409     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1410     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1411     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1412     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1413     &level.initial_inventory_size[0],
1414     NULL,                               NULL, "number of inventory elements"
1415   },
1416
1417   /* ---------- element settings: configure 1 (custom elements) ------------ */
1418
1419   {
1420     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1421     MIN_SCORE,                          MAX_SCORE,
1422     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1423     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1424     &custom_element.collect_score_initial,
1425     NULL,                               "CE score", " "
1426   },
1427   {
1428     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1429     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1430     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1431     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1432     &custom_element.collect_count_initial,
1433     NULL,                               "CE count", NULL
1434   },
1435   {
1436     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1437     0,                                  9999,
1438     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1439     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1440     &custom_element.ce_value_fixed_initial,
1441     NULL,                               "CE value", NULL
1442   },
1443   {
1444     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1445     0,                                  9999,
1446     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1447     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1448     &custom_element.ce_value_random_initial,
1449     NULL,                               "+random", NULL
1450   },
1451   {
1452     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1453     0,                                  999,
1454     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1455     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1456     &custom_element.push_delay_fixed,
1457     NULL,                               "push delay", NULL
1458   },
1459   {
1460     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1461     0,                                  999,
1462     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1463     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1464     &custom_element.push_delay_random,
1465     NULL,                               "+random", NULL
1466   },
1467   {
1468     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1469     0,                                  999,
1470     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1471     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1472     &custom_element.drop_delay_fixed,
1473     NULL,                               "drop delay", NULL
1474   },
1475   {
1476     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1477     0,                                  999,
1478     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1479     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1480     &custom_element.drop_delay_random,
1481     NULL,                               "+random", NULL
1482   },
1483
1484   /* ---------- element settings: configure 2 (custom elements) ------------ */
1485
1486   {
1487     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1488     0,                                  999,
1489     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1490     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1491     &custom_element.move_delay_fixed,
1492     NULL,                               "move delay", NULL
1493   },
1494   {
1495     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1496     0,                                  999,
1497     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1498     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1499     &custom_element.move_delay_random,
1500     NULL,                               "+random", NULL
1501   },
1502   {
1503     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
1504     0,                                  999,
1505     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1506     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1507     &custom_element.explosion_delay,
1508     NULL,                               "explosion delay", NULL
1509   },
1510   {
1511     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1512     0,                                  999,
1513     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1514     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1515     &custom_element.ignition_delay,
1516     NULL,                               "ignition delay", "(by fire)"
1517   },
1518
1519   /* ---------- element settings: configure (group elements) --------------- */
1520
1521   {
1522     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1523     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1524     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1525     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1526     &group_element_info.num_elements,
1527     NULL,                               NULL, "number of elements in group"
1528   },
1529
1530   /* ---------- element settings: advanced (custom elements) --------------- */
1531
1532   {
1533     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1534     0,                                  999,
1535     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1536     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1537     &custom_element_change.delay_fixed,
1538     NULL,                               "CE delay", NULL,
1539   },
1540   {
1541     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1542     0,                                  999,
1543     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1544     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1545     &custom_element_change.delay_random,
1546     NULL,                               "+random", NULL
1547   },
1548   {
1549     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1550     0,                                  100,
1551     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1552     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1553     &custom_element_change.random_percentage,
1554     NULL,                               "use random replace:", "%"
1555   },
1556 };
1557
1558 static struct
1559 {
1560   int x, y;
1561   int gadget_id;
1562   int size;
1563   char *value;
1564   char *text_above, *infotext;
1565 } textinput_info[ED_NUM_TEXTINPUT] =
1566 {
1567   {
1568     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1569     GADGET_ID_LEVEL_NAME,
1570     MAX_LEVEL_NAME_LEN,
1571     level.name,
1572     "Title:", "Title"
1573   },
1574   {
1575     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1576     GADGET_ID_LEVEL_AUTHOR,
1577     MAX_LEVEL_AUTHOR_LEN,
1578     level.author,
1579     "Author:", "Author"
1580   },
1581   {
1582     -1, -1,     /* these values are not constant, but can change at runtime */
1583     GADGET_ID_ELEMENT_NAME,
1584     MAX_ELEMENT_NAME_LEN - 2,           /* currently 2 chars less editable */
1585     custom_element.description,
1586     NULL, "Element name"
1587   }
1588 };
1589
1590 static struct
1591 {
1592   int x, y;
1593   int gadget_id;
1594   int xsize, ysize;
1595   char *value;
1596   char *text_above, *infotext;
1597 } textarea_info[ED_NUM_TEXTAREAS] =
1598 {
1599   {
1600     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1601     GADGET_ID_ENVELOPE_INFO,
1602     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1603     NULL,
1604     "Envelope Content:", "Envelope Content"
1605   }
1606 };
1607
1608 static struct ValueTextInfo options_time_or_steps[] =
1609 {
1610   { 0,                          "seconds"                       },
1611   { 1,                          "steps"                         },
1612
1613   { -1,                         NULL                            }
1614 };
1615
1616 static struct ValueTextInfo options_game_engine_type[] =
1617 {
1618   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
1619   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
1620   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
1621   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
1622
1623   { -1,                         NULL                            }
1624 };
1625
1626 static struct ValueTextInfo options_wind_direction[] =
1627 {
1628   { MV_START_NONE,              "none"                          },
1629   { MV_START_LEFT,              "left"                          },
1630   { MV_START_RIGHT,             "right"                         },
1631   { MV_START_UP,                "up"                            },
1632   { MV_START_DOWN,              "down"                          },
1633
1634   { -1,                         NULL                            }
1635 };
1636
1637 static struct ValueTextInfo options_player_speed[] =
1638 {
1639   { 0,                          "frozen"                        },
1640   { 1,                          "very slow"                     },
1641   { 2,                          "slow"                          },
1642   { 4,                          "normal"                        },
1643   { 8,                          "fast"                          },
1644   { 16,                         "very fast"                     },
1645   { 32,                         "ultrafast"                     },
1646
1647   { -1,                         NULL                            }
1648 };
1649
1650 static struct ValueTextInfo options_access_type[] =
1651 {
1652   { EP_WALKABLE,                "walkable"                      },
1653   { EP_PASSABLE,                "passable"                      },
1654
1655   { -1,                         NULL                            }
1656 };
1657
1658 static struct ValueTextInfo options_access_layer[] =
1659 {
1660   { EP_ACCESSIBLE_OVER,         "over"                          },
1661   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
1662   { EP_ACCESSIBLE_UNDER,        "under"                         },
1663
1664   { -1,                         NULL                            }
1665 };
1666
1667 static struct ValueTextInfo options_access_protected[] =
1668 {
1669   { 0,                          "unprotected"                   },
1670   { 1,                          "protected"                     },
1671
1672   { -1,                         NULL                            }
1673 };
1674
1675 static struct ValueTextInfo options_access_direction[] =
1676 {
1677   { MV_NO_DIRECTION,            "no direction"                  },
1678   { MV_LEFT,                    "left"                          },
1679   { MV_RIGHT,                   "right"                         },
1680   { MV_UP,                      "up"                            },
1681   { MV_DOWN,                    "down"                          },
1682   { MV_LEFT  | MV_UP,           "left + up"                     },
1683   { MV_LEFT  | MV_DOWN,         "left + down"                   },
1684   { MV_RIGHT | MV_UP,           "right + up"                    },
1685   { MV_RIGHT | MV_DOWN,         "right + down"                  },
1686   { MV_HORIZONTAL,              "horizontal"                    },
1687   { MV_VERTICAL,                "vertical"                      },
1688   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
1689   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
1690   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
1691   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
1692   { MV_ALL_DIRECTIONS,          "all directions"                },
1693
1694   { -1,                         NULL                            }
1695 };
1696
1697 static struct ValueTextInfo options_walk_to_action[] =
1698 {
1699   { EP_DIGGABLE,                "diggable"                      },
1700   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
1701   { EP_DROPPABLE,               "collectible & droppable"       },
1702   { EP_THROWABLE,               "collectible & throwable"       },
1703   { EP_PUSHABLE,                "pushable"                      },
1704
1705   { -1,                         NULL                            }
1706 };
1707
1708 static struct ValueTextInfo options_move_pattern[] =
1709 {
1710   { MV_LEFT,                    "left"                          },
1711   { MV_RIGHT,                   "right"                         },
1712   { MV_UP,                      "up"                            },
1713   { MV_DOWN,                    "down"                          },
1714   { MV_HORIZONTAL,              "horizontal"                    },
1715   { MV_VERTICAL,                "vertical"                      },
1716   { MV_ALL_DIRECTIONS,          "all directions"                },
1717   { MV_WIND_DIRECTION,          "wind direction"                },
1718   { MV_TOWARDS_PLAYER,          "towards player"                },
1719   { MV_AWAY_FROM_PLAYER,        "away from player"              },
1720   { MV_ALONG_LEFT_SIDE,         "along left side"               },
1721   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
1722   { MV_TURNING_LEFT,            "turning left"                  },
1723   { MV_TURNING_RIGHT,           "turning right"                 },
1724   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
1725   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
1726   { MV_TURNING_RANDOM,          "turning random"                },
1727   { MV_MAZE_RUNNER,             "maze runner style"             },
1728   { MV_MAZE_HUNTER,             "maze hunter style"             },
1729   { MV_WHEN_PUSHED,             "when pushed"                   },
1730   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
1731
1732   { -1,                         NULL                            }
1733 };
1734
1735 static struct ValueTextInfo options_move_direction[] =
1736 {
1737   { MV_START_AUTOMATIC,         "automatic"                     },
1738   { MV_START_LEFT,              "left"                          },
1739   { MV_START_RIGHT,             "right"                         },
1740   { MV_START_UP,                "up"                            },
1741   { MV_START_DOWN,              "down"                          },
1742   { MV_START_RANDOM,            "random"                        },
1743   { MV_START_PREVIOUS,          "previous"                      },
1744
1745   { -1,                         NULL                            }
1746 };
1747
1748 static struct ValueTextInfo options_move_stepsize[] =
1749 {
1750   { 0,                          "not moving"                    },
1751   { 1,                          "very slow"                     },
1752   { 2,                          "slow"                          },
1753   { 4,                          "normal"                        },
1754   { 8,                          "fast"                          },
1755   { 16,                         "very fast"                     },
1756   { 32,                         "even faster"                   },
1757
1758   { -1,                         NULL                            }
1759 };
1760
1761 static struct ValueTextInfo options_move_leave_type[] =
1762 {
1763   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
1764   { LEAVE_TYPE_LIMITED,         "change it to"                  },
1765
1766   { -1,                         NULL                            }
1767 };
1768
1769 static struct ValueTextInfo options_smash_targets[] =
1770 {
1771   { EP_CAN_SMASH_PLAYER,        "player"                        },
1772 #if 0
1773   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
1774 #endif
1775   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
1776
1777   { -1,                         NULL                            }
1778 };
1779
1780 static struct ValueTextInfo options_slippery_type[] =
1781 {
1782   { SLIPPERY_ANY_RANDOM,        "random"                        },
1783   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
1784   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
1785   { SLIPPERY_ONLY_LEFT,         "only left"                     },
1786   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
1787
1788   { -1,                         NULL                            }
1789 };
1790
1791 static struct ValueTextInfo options_deadliness[] =
1792 {
1793   { EP_DONT_RUN_INTO,           "running into"                  },
1794   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
1795   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
1796   { EP_DONT_TOUCH,              "touching"                      },
1797
1798   { -1,                         NULL                            }
1799 };
1800
1801 static struct ValueTextInfo options_explosion_type[] =
1802 {
1803   { EXPLODES_3X3,               "3x3"                           },
1804   { EXPLODES_CROSS,             "3+3"                           },
1805   { EXPLODES_1X1,               "1x1"                           },
1806
1807   { -1,                         NULL                            }
1808 };
1809
1810 static struct ValueTextInfo options_time_units[] =
1811 {
1812   { 1,                          "frames"                        },
1813   { FRAMES_PER_SECOND,          "seconds"                       },
1814
1815   { -1,                         NULL                            }
1816 };
1817
1818 static struct ValueTextInfo options_change_direct_action[] =
1819 {
1820   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
1821   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
1822   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
1823   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
1824   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
1825   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
1826   { CE_LEFT_BY_PLAYER,          "left by player"                },
1827   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
1828   { CE_SWITCHED,                "switched"                      },
1829   { CE_HITTING_SOMETHING,       "hitting something"             },
1830   { CE_HIT_BY_SOMETHING,        "hit by something"              },
1831 #if 0
1832   { CE_BLOCKED,                 "blocked"                       },
1833 #endif
1834   { CE_IMPACT,                  "impact (on something)"         },
1835   { CE_SMASHED,                 "smashed (from above)"          },
1836 #if 0
1837   { CE_VALUE_CHANGES,           "CE value changes"              },
1838   { CE_SCORE_CHANGES,           "CE score changes"              },
1839 #endif
1840   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
1841   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
1842
1843   { -1,                         NULL                            }
1844 };
1845
1846 static struct ValueTextInfo options_change_other_action[] =
1847 {
1848   { CE_PLAYER_TOUCHES_X,        "player touches"                },
1849   { CE_PLAYER_PRESSES_X,        "player presses"                },
1850   { CE_PLAYER_SWITCHES_X,       "player switches"               },
1851   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
1852   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
1853   { CE_PLAYER_ENTERS_X,         "player enters"                 },
1854   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
1855   { CE_PLAYER_DIGS_X,           "player digs"                   },
1856   { CE_PLAYER_COLLECTS_X,       "player collects"               },
1857   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
1858   { CE_TOUCHING_X,              "touching"                      },
1859   { CE_HITTING_X,               "hitting"                       },
1860   { CE_DIGGING_X,               "digging"                       },
1861   { CE_HIT_BY_X,                "hit by"                        },
1862   { CE_SWITCH_OF_X,             "switch of"                     },
1863   { CE_CHANGE_OF_X,             "change by page of"             },
1864   { CE_EXPLOSION_OF_X,          "explosion of"                  },
1865   { CE_MOVE_OF_X,               "move of"                       },
1866   { CE_CREATION_OF_X,           "creation of"                   },
1867   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
1868   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
1869   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
1870   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
1871
1872   { -1,                         NULL                            }
1873 };
1874
1875 static struct ValueTextInfo options_change_trigger_side[] =
1876 {
1877   { CH_SIDE_LEFT,               "left"                          },
1878   { CH_SIDE_RIGHT,              "right"                         },
1879   { CH_SIDE_TOP,                "top"                           },
1880   { CH_SIDE_BOTTOM,             "bottom"                        },
1881   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
1882   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
1883   { CH_SIDE_ANY,                "any"                           },
1884
1885   { -1,                         NULL                            }
1886 };
1887
1888 static struct ValueTextInfo options_change_trigger_player[] =
1889 {
1890   { CH_PLAYER_1,                "1"                             },
1891   { CH_PLAYER_2,                "2"                             },
1892   { CH_PLAYER_3,                "3"                             },
1893   { CH_PLAYER_4,                "4"                             },
1894   { CH_PLAYER_ANY,              "any"                           },
1895
1896   { -1,                         NULL                            }
1897 };
1898
1899 static struct ValueTextInfo options_change_trigger_page[] =
1900 {
1901   { (1 << 0),                   "1"                             },
1902   { (1 << 1),                   "2"                             },
1903   { (1 << 2),                   "3"                             },
1904   { (1 << 3),                   "4"                             },
1905   { (1 << 4),                   "5"                             },
1906   { (1 << 5),                   "6"                             },
1907   { (1 << 6),                   "7"                             },
1908   { (1 << 7),                   "8"                             },
1909   { (1 << 8),                   "9"                             },
1910   { (1 << 9),                   "10"                            },
1911   { (1 << 10),                  "11"                            },
1912   { (1 << 11),                  "12"                            },
1913   { (1 << 12),                  "13"                            },
1914   { (1 << 13),                  "14"                            },
1915   { (1 << 14),                  "15"                            },
1916   { (1 << 15),                  "16"                            },
1917   { (1 << 16),                  "17"                            },
1918   { (1 << 17),                  "18"                            },
1919   { (1 << 18),                  "19"                            },
1920   { (1 << 19),                  "20"                            },
1921   { (1 << 20),                  "21"                            },
1922   { (1 << 21),                  "22"                            },
1923   { (1 << 22),                  "23"                            },
1924   { (1 << 23),                  "24"                            },
1925   { (1 << 24),                  "25"                            },
1926   { (1 << 25),                  "26"                            },
1927   { (1 << 26),                  "27"                            },
1928   { (1 << 27),                  "28"                            },
1929   { (1 << 28),                  "29"                            },
1930   { (1 << 29),                  "30"                            },
1931   { (1 << 30),                  "31"                            },
1932   { (1 << 31),                  "32"                            },
1933   { CH_PAGE_ANY,                "any"                           },
1934
1935   { -1,                         NULL                            }
1936 };
1937
1938 static struct ValueTextInfo options_change_replace_when[] =
1939 {
1940   { CP_WHEN_EMPTY,              "empty"                         },
1941   { CP_WHEN_WALKABLE,           "walkable"                      },
1942   { CP_WHEN_DIGGABLE,           "diggable"                      },
1943   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
1944   { CP_WHEN_REMOVABLE,          "removable"                     },
1945   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
1946
1947   { -1,                         NULL                            }
1948 };
1949
1950 static struct ValueTextInfo options_action_type[] =
1951 {
1952   { CA_NO_ACTION,               "no action"                     },
1953   { CA_UNDEFINED,               " "                             },
1954   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
1955   { CA_RESTART_LEVEL,           "restart level"                 },
1956   { CA_SHOW_ENVELOPE,           "show envelope"                 },
1957   { CA_SET_LEVEL_TIME,          "set time"                      },
1958   { CA_SET_LEVEL_SCORE,         "set score"                     },
1959   { CA_SET_LEVEL_GEMS,          "set gems"                      },
1960   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
1961   { CA_SET_LEVEL_RANDOM_SEED,   "set rand. seed"                },
1962   { CA_UNDEFINED,               " "                             },
1963   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
1964   { CA_MOVE_PLAYER,             "move player"                   },
1965   { CA_EXIT_PLAYER,             "exit player"                   },
1966   { CA_KILL_PLAYER,             "kill player"                   },
1967   { CA_SET_PLAYER_KEYS,         "set keys"                      },
1968   { CA_SET_PLAYER_SPEED,        "set speed"                     },
1969   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
1970   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
1971   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
1972   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
1973   { CA_UNDEFINED,               " "                             },
1974   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
1975   { CA_SET_CE_VALUE,            "set CE value"                  },
1976   { CA_SET_CE_SCORE,            "set CE score"                  },
1977   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
1978   { CA_UNDEFINED,               " "                             },
1979   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
1980   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
1981
1982   { -1,                         NULL                            }
1983 };
1984
1985 static struct ValueTextInfo options_action_mode_none[] =
1986 {
1987   { CA_MODE_UNDEFINED,          " "                             },
1988
1989   { -1,                         NULL                            }
1990 };
1991
1992 static struct ValueTextInfo options_action_mode_assign[] =
1993 {
1994   { CA_MODE_SET,                "="                             },
1995
1996   { -1,                         NULL                            }
1997 };
1998
1999 static struct ValueTextInfo options_action_mode_add_remove[] =
2000 {
2001   { CA_MODE_ADD,                "+"                             },
2002   { CA_MODE_SUBTRACT,           "-"                             },
2003
2004   { -1,                         NULL                            }
2005 };
2006
2007 static struct ValueTextInfo options_action_mode_calculate[] =
2008 {
2009   { CA_MODE_SET,                "="                             },
2010   { CA_MODE_ADD,                "+"                             },
2011   { CA_MODE_SUBTRACT,           "-"                             },
2012   { CA_MODE_MULTIPLY,           "*"                             },
2013   { CA_MODE_DIVIDE,             "/"                             },
2014   { CA_MODE_MODULO,             "%"                             },
2015
2016   { -1,                         NULL                            }
2017 };
2018
2019 static struct ValueTextInfo options_action_arg_none[] =
2020 {
2021   { CA_ARG_UNDEFINED,           "         "                     },
2022
2023   { -1,                         NULL                            }
2024 };
2025
2026 static struct ValueTextInfo options_action_arg_player[] =
2027 {
2028   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2029   { CA_ARG_PLAYER_1,            "1"                             },
2030   { CA_ARG_PLAYER_2,            "2"                             },
2031   { CA_ARG_PLAYER_3,            "3"                             },
2032   { CA_ARG_PLAYER_4,            "4"                             },
2033   { CA_ARG_PLAYER_ANY,          "any"                           },
2034   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2035   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2036
2037   { -1,                         NULL                            }
2038 };
2039
2040 static struct ValueTextInfo options_action_arg_number[] =
2041 {
2042   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2043   { CA_ARG_0,                   "0"                             },
2044   { CA_ARG_1,                   "1"                             },
2045   { CA_ARG_2,                   "2"                             },
2046   { CA_ARG_3,                   "3"                             },
2047   { CA_ARG_4,                   "4"                             },
2048   { CA_ARG_5,                   "5"                             },
2049   { CA_ARG_10,                  "10"                            },
2050   { CA_ARG_100,                 "100"                           },
2051   { CA_ARG_1000,                "1000"                          },
2052   { CA_ARG_UNDEFINED,           " "                             },
2053   { CA_ARG_NUMBER_MIN,          "min"                           },
2054   { CA_ARG_NUMBER_MAX,          "max"                           },
2055   { CA_ARG_UNDEFINED,           " "                             },
2056   { CA_ARG_NUMBER_RESET,        "reset"                         },
2057   { CA_ARG_UNDEFINED,           " "                             },
2058   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2059   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2060   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2061   { CA_ARG_UNDEFINED,           " "                             },
2062   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2063   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2064   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2065   { CA_ARG_UNDEFINED,           " "                             },
2066   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2067   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2068   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2069   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2070   { CA_ARG_UNDEFINED,           " "                             },
2071   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2072   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2073   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2074   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2075
2076   { -1,                         NULL                            }
2077 };
2078
2079 static struct ValueTextInfo options_action_arg_value[] =
2080 {
2081   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2082   { CA_ARG_0,                   "0"                             },
2083   { CA_ARG_1,                   "1"                             },
2084   { CA_ARG_2,                   "2"                             },
2085   { CA_ARG_3,                   "3"                             },
2086   { CA_ARG_4,                   "4"                             },
2087   { CA_ARG_5,                   "5"                             },
2088   { CA_ARG_10,                  "10"                            },
2089   { CA_ARG_100,                 "100"                           },
2090   { CA_ARG_1000,                "1000"                          },
2091   { CA_ARG_UNDEFINED,           " "                             },
2092   { CA_ARG_NUMBER_MIN,          "min"                           },
2093   { CA_ARG_NUMBER_MAX,          "max"                           },
2094   { CA_ARG_UNDEFINED,           " "                             },
2095   { CA_ARG_NUMBER_RESET,        "reset"                         },
2096   { CA_ARG_UNDEFINED,           " "                             },
2097   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2098   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2099   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2100   { CA_ARG_UNDEFINED,           " "                             },
2101   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2102   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2103   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2104   { CA_ARG_UNDEFINED,           " "                             },
2105   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2106   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2107   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2108   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2109   { CA_ARG_UNDEFINED,           " "                             },
2110   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2111   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2112   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2113   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2114   { CA_ARG_UNDEFINED,           " "                             },
2115   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2116   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2117   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2118   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2119
2120   { -1,                         NULL                            }
2121 };
2122
2123 static struct ValueTextInfo options_action_arg_envelope[] =
2124 {
2125   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2126   { CA_ARG_1,                   "1"                             },
2127   { CA_ARG_2,                   "2"                             },
2128   { CA_ARG_3,                   "3"                             },
2129   { CA_ARG_4,                   "4"                             },
2130   { CA_ARG_UNDEFINED,           " "                             },
2131   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2132   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2133   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2134   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2135
2136   { -1,                         NULL                            }
2137 };
2138
2139 static struct ValueTextInfo options_action_arg_key[] =
2140 {
2141   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2142   { CA_ARG_1,                   "1"                             },
2143   { CA_ARG_2,                   "2"                             },
2144   { CA_ARG_3,                   "3"                             },
2145   { CA_ARG_4,                   "4"                             },
2146   { CA_ARG_5,                   "5"                             },
2147   { CA_ARG_6,                   "6"                             },
2148   { CA_ARG_7,                   "7"                             },
2149   { CA_ARG_8,                   "8"                             },
2150   { CA_ARG_UNDEFINED,           " "                             },
2151   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2152   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2153   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2154   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2155
2156   { -1,                         NULL                            }
2157 };
2158
2159 static struct ValueTextInfo options_action_arg_speed[] =
2160 {
2161   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2162   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2163   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2164   { CA_ARG_SPEED_SLOW,          "slow"                          },
2165   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2166   { CA_ARG_SPEED_FAST,          "fast"                          },
2167   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2168   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2169   { CA_ARG_UNDEFINED,           " "                             },
2170   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2171   { CA_ARG_SPEED_FASTER,        "faster"                        },
2172   { CA_ARG_UNDEFINED,           " "                             },
2173   { CA_ARG_SPEED_RESET,         "reset"                         },
2174
2175   { -1,                         NULL                            }
2176 };
2177
2178 static struct ValueTextInfo options_action_arg_shield[] =
2179 {
2180   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2181   { CA_ARG_SHIELD_OFF,          "off"                           },
2182   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2183   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2184
2185   { -1,                         NULL                            }
2186 };
2187
2188 static struct ValueTextInfo options_action_arg_artwork[] =
2189 {
2190   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2191   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2192   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2193   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2194   { CA_ARG_UNDEFINED,           " "                             },
2195   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2196
2197   { -1,                         NULL                            }
2198 };
2199
2200 static struct ValueTextInfo options_action_arg_gravity[] =
2201 {
2202   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2203   { CA_ARG_GRAVITY_ON,          "on"                            },
2204   { CA_ARG_GRAVITY_OFF,         "off"                           },
2205   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2206
2207   { -1,                         NULL                            }
2208 };
2209
2210 static struct ValueTextInfo options_action_arg_direction[] =
2211 {
2212   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2213   { CA_ARG_DIRECTION_NONE,      "none"                          },
2214   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2215   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2216   { CA_ARG_DIRECTION_UP,        "up"                            },
2217   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2218   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2219   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2220
2221   { -1,                         NULL                            }
2222 };
2223
2224 static struct ValueTextInfo options_action_arg_scan_mode[] =
2225 {
2226   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2227   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2228   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2229
2230   { -1,                         NULL                            }
2231 };
2232
2233 static struct ValueTextInfo options_action_arg_inventory[] =
2234 {
2235   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2236   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2237   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2238   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2239   { CA_ARG_UNDEFINED,           " "                             },
2240   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2241   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2242   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2243   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2244   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2245   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2246   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2247   { CA_ARG_UNDEFINED,           " "                             },
2248   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2249
2250   { -1,                         NULL                            }
2251 };
2252
2253 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2254 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2255 {
2256   { -1,                         NULL                            }
2257 };
2258
2259 static struct ValueTextInfo options_group_choice_mode[] =
2260 {
2261   { ANIM_RANDOM,                "random"                        },
2262   { ANIM_LOOP,                  "loop"                          },
2263   { ANIM_LINEAR,                "linear"                        },
2264   { ANIM_PINGPONG,              "pingpong"                      },
2265   { ANIM_PINGPONG2,             "pingpong 2"                    },
2266
2267   { -1,                         NULL                            }
2268 };
2269
2270 static struct ValueTextInfo *action_arg_modes[] =
2271 {
2272   options_action_mode_none,
2273   options_action_mode_assign,
2274   options_action_mode_add_remove,
2275   options_action_mode_calculate,
2276 };
2277
2278 static struct
2279 {
2280   int value;
2281   int mode;
2282   struct ValueTextInfo *options;
2283 }
2284 action_arg_options[] =
2285 {
2286   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2287   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2288   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2289   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2290   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2291   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2292   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2293   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2294   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2295   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2296   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2297   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2298   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2299   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2300   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2301   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2302   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2303   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2304   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2305   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2306   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2307
2308   { -1,                         FALSE,  NULL                            }
2309 };
2310
2311 static struct
2312 {
2313   int x, y;
2314   int gadget_id;
2315   int gadget_id_align;
2316   int size;     /* char size of selectbox or '-1' (dynamically determined) */
2317   struct ValueTextInfo *options;
2318   int *value;
2319   char *text_left, *text_right, *infotext;
2320 } selectbox_info[ED_NUM_SELECTBOX] =
2321 {
2322   /* ---------- level and editor settings ---------------------------------- */
2323
2324   {
2325     -1,                                 ED_LEVEL_SETTINGS_YPOS(7),
2326     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2327     -1,
2328     options_time_or_steps,
2329     &level.use_step_counter,
2330     NULL, "(0 => no limit)",            "time or step limit"
2331   },
2332   {
2333     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
2334     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2335     -1,
2336     options_game_engine_type,
2337     &level.game_engine_type,
2338     "game engine:", NULL,               "game engine"
2339   },
2340   {
2341     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2342     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2343     -1,
2344     options_wind_direction,
2345     &level.wind_direction_initial,
2346     "initial wind direction:", NULL,    "initial wind direction"
2347   },
2348
2349   /* ---------- element settings: configure (several elements) ------------- */
2350
2351   {
2352     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2353     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2354     -1,
2355     options_player_speed,
2356     &level.initial_player_stepsize[0],
2357     "initial player speed:", NULL,      "initial player speed"
2358   },
2359
2360   /* ---------- element settings: configure 1 (custom elements) ------------ */
2361
2362   {
2363     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2364     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2365     -1,
2366     options_access_type,
2367     &custom_element.access_type,
2368     NULL, NULL,                         "type of access to this field"
2369   },
2370   {
2371     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2372     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2373     -1,
2374     options_access_layer,
2375     &custom_element.access_layer,
2376     NULL, NULL,                         "layer of access for this field"
2377   },
2378   {
2379     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2380     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2381     -1,
2382     options_access_protected,
2383     &custom_element.access_protected,
2384     NULL, NULL,                         "protected access for this field"
2385   },
2386   {
2387     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2388     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2389     -1,
2390     options_access_direction,
2391     &custom_element.access_direction,
2392     "from", NULL,                       "access direction for this field"
2393   },
2394   {
2395     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2396     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2397     -1,
2398     options_walk_to_action,
2399     &custom_element.walk_to_action,
2400     NULL, NULL,                         "diggable/collectible/pushable"
2401   },
2402
2403   /* ---------- element settings: configure 2 (custom elements) ------------ */
2404
2405   {
2406     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2407     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2408     -1,
2409     options_move_pattern,
2410     &custom_element.move_pattern,
2411     "can move", NULL,                   "element move pattern"
2412   },
2413   {
2414     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2415     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2416     -1,
2417     options_move_direction,
2418     &custom_element.move_direction_initial,
2419     "starts moving", NULL,              "initial element move direction"
2420   },
2421   {
2422     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2423     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2424     -1,
2425     options_move_stepsize,
2426     &custom_element.move_stepsize,
2427     "move/fall speed", NULL,            "speed of element movement"
2428   },
2429   {
2430     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2431     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2432     -1,
2433     options_move_leave_type,
2434     &custom_element.move_leave_type,
2435     // left text with leading spaces to place gadget next to "can dig" gadget
2436     // (needed because drawing area gadgets created after selectbox gadgets)
2437     // "can dig:    can", ":",          "leave behind or change element"
2438     "            can", ":",             "leave behind or change element"
2439   },
2440   {
2441     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
2442     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2443     -1,
2444     options_smash_targets,
2445     &custom_element.smash_targets,
2446     "can smash", NULL,                  "elements that can be smashed"
2447   },
2448   {
2449     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
2450     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2451     -1,
2452     options_slippery_type,
2453     &custom_element.slippery_type,
2454     "slippery", NULL,                   "where other elements fall down"
2455   },
2456   {
2457     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2458     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2459     -1,
2460     options_deadliness,
2461     &custom_element.deadliness,
2462     "deadly when", NULL,                "deadliness of element"
2463   },
2464   {
2465     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2466     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2467     -1,
2468     options_explosion_type,
2469     &custom_element.explosion_type,
2470     "can explode", NULL,                "explosion type"
2471   },
2472
2473   /* ---------- element settings: advanced (custom elements) --------------- */
2474
2475   {
2476     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2477     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2478     -1,
2479     options_time_units,
2480     &custom_element_change.delay_frames,
2481     "delay time given in", NULL,        "delay time units for change"
2482   },
2483   {
2484     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2485     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2486     -1,
2487     options_change_direct_action,
2488     &custom_element_change.direct_action,
2489     NULL, NULL,                         "type of direct action"
2490   },
2491   {
2492     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2493     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2494     -1,
2495     options_change_other_action,
2496     &custom_element_change.other_action,
2497     NULL, "element:",                   "type of other element action"
2498   },
2499   {
2500     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2501     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2502     -1,
2503     options_change_trigger_side,
2504     &custom_element_change.trigger_side,
2505     "at", "side",                       "element side triggering change"
2506   },
2507   {
2508     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2509     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2510     -1,
2511     options_change_trigger_player,
2512     &custom_element_change.trigger_player,
2513     "player:", " ",                     "player that causes change"
2514   },
2515   {
2516     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2517     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2518     -1,
2519     options_change_trigger_page,
2520     &custom_element_change.trigger_page,
2521     "page:", NULL,                      "change page that causes change"
2522   },
2523   {
2524     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2525     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2526     -1,
2527     options_change_replace_when,
2528     &custom_element_change.replace_when,
2529     "replace when", NULL,               "which elements can be replaced"
2530   },
2531   {
2532     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
2533     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
2534     -1,
2535     options_action_type,
2536     &custom_element_change.action_type,
2537     NULL, NULL,                         "action on specified condition"
2538   },
2539   {
2540     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2541     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
2542     -1,
2543     options_action_mode_none,
2544     &custom_element_change.action_mode,
2545     NULL, NULL,                         "action operator"
2546   },
2547   {
2548     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2549     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
2550     -1,
2551     options_action_arg_none,
2552     &custom_element_change.action_arg,
2553     NULL, NULL,                         "action parameter"
2554   },
2555   {
2556     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
2557     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
2558     3,
2559     options_change_page,
2560     &custom_element.current_change_page,
2561     NULL, NULL,                         "element change page"
2562   },
2563
2564   /* ---------- element settings: configure (group elements) --------------- */
2565
2566   {
2567     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2568     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
2569     -1,
2570     options_group_choice_mode,
2571     &group_element_info.choice_mode,
2572     "choice type:", NULL,               "type of group element choice"
2573   },
2574 };
2575
2576 static struct
2577 {
2578   int x, y;
2579   int gadget_id;
2580   int gadget_id_align;
2581   int size;
2582   char *text;
2583   char *text_above, *text_left, *text_right, *infotext;
2584 } textbutton_info[ED_NUM_TEXTBUTTONS] =
2585 {
2586   /* ---------- level and editor settings (tabs) --------------------------- */
2587
2588   {
2589     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
2590     GADGET_ID_LEVELINFO_LEVEL,          GADGET_ID_NONE,
2591     8,                                  "Level",
2592     NULL, NULL, NULL,                   "Configure level properties"
2593   },
2594   {
2595     -1,                                 -1,
2596     GADGET_ID_LEVELINFO_EDITOR,         GADGET_ID_LEVELINFO_LEVEL,
2597     8,                                  "Editor",
2598     NULL, NULL, NULL,                   "Configure editor properties"
2599   },
2600
2601   /* ---------- element settings (tabs) ------------------------------------ */
2602
2603   {
2604     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
2605     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
2606     8,                                  "Info",
2607     NULL, NULL, NULL,                   "Show information about element"
2608   },
2609   {
2610     -1,                                 -1,
2611     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
2612     8,                                  "Config",
2613     NULL, NULL, NULL,                   "Configure element properties"
2614   },
2615   {
2616     -1,                                 -1,
2617     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
2618     8,                                  "Config 1",
2619     NULL, NULL, NULL,                   "Configure element properties, part 1"
2620   },
2621   {
2622     -1,                                 -1,
2623     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
2624     8,                                  "Config 2",
2625     NULL, NULL, NULL,                   "Configure element properties, part 2"
2626   },
2627   {
2628     -1,                                 -1,
2629     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
2630     8,                                  "Change",
2631     NULL, NULL, NULL,                   "Configure custom element change pages"
2632   },
2633
2634   /* ---------- level and editor settings (buttons) ------------------------ */
2635
2636   {
2637     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
2638     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
2639     -1,                                 "Save",
2640     NULL, NULL,                         "this level as level template",
2641     "Save current settings as new template"
2642   },
2643
2644   /* ---------- element settings (buttons) --------------------------------- */
2645
2646   {
2647     -1,                                 -1,
2648     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
2649     -1,                                 "Save",
2650     NULL, " ",                          "As Template",
2651     "Save current settings as new template"
2652   },
2653   {
2654     -1,                                 -1,
2655     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
2656     -1,                                 "New",
2657     NULL, NULL, NULL,                   "Add new change page"
2658   },
2659   {
2660     -1,                                 -1,
2661     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
2662     -1,                                 "Delete",
2663     NULL, NULL, NULL,                   "Delete current change page"
2664   },
2665 };
2666
2667 static struct
2668 {
2669   int graphic;
2670   int x, y;
2671   int gadget_id;
2672   int gadget_id_align;
2673   char *text_left, *text_right, *infotext;
2674 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
2675 {
2676   {
2677     IMG_EDITOR_COUNTER_DOWN,
2678     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
2679     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
2680     NULL, NULL,                         "select previous change page"
2681   },
2682   {
2683     IMG_EDITOR_COUNTER_UP,
2684     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2685     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
2686     NULL, "change page",                "select next change page"
2687   },
2688   {
2689     IMG_GFX_EDITOR_BUTTON_CP_COPY,
2690     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2691     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
2692     " ", NULL,                          "copy settings from this change page"
2693   },
2694   {
2695     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
2696     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2697     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
2698     NULL, NULL,                         "paste settings to this change page"
2699   },
2700 };
2701
2702 static struct
2703 {
2704   int x, y;
2705 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
2706
2707 static struct
2708 {
2709   int graphic;
2710   int gadget_id;
2711   char *infotext;
2712 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
2713 {
2714   {
2715     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
2716     GADGET_ID_SCROLL_UP,
2717     "scroll level editing area up"
2718   },
2719   {
2720     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
2721     GADGET_ID_SCROLL_DOWN,
2722     "scroll level editing area down"
2723   },
2724   {
2725     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
2726     GADGET_ID_SCROLL_LEFT,
2727     "scroll level editing area left"
2728   },
2729   {
2730     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
2731     GADGET_ID_SCROLL_RIGHT,
2732     "scroll level editing area right"
2733   },
2734   {
2735     IMG_EDITOR_PALETTE_SCROLL_UP,
2736     GADGET_ID_SCROLL_LIST_UP,
2737     "scroll element list up ('Page Up')"
2738   },
2739   {
2740     IMG_EDITOR_PALETTE_SCROLL_DOWN,
2741     GADGET_ID_SCROLL_LIST_DOWN,
2742     "scroll element list down ('Page Down')"
2743   },
2744 };
2745
2746 static struct
2747 {
2748   int x, y;
2749   int width, height;
2750   int wheel_x, wheel_y;
2751   int wheel_width, wheel_height;
2752 } scrollbar_pos[ED_NUM_SCROLLBARS];
2753
2754 static struct
2755 {
2756   int graphic;
2757   int type;
2758   int gadget_id;
2759   char *infotext;
2760 } scrollbar_info[ED_NUM_SCROLLBARS] =
2761 {
2762   {
2763     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
2764     GD_TYPE_SCROLLBAR_HORIZONTAL,
2765     GADGET_ID_SCROLL_HORIZONTAL,
2766     "scroll level editing area horizontally"
2767   },
2768   {
2769     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
2770     GD_TYPE_SCROLLBAR_VERTICAL,
2771     GADGET_ID_SCROLL_VERTICAL,
2772     "scroll level editing area vertically"
2773   },
2774   {
2775     IMG_EDITOR_PALETTE_SCROLLBAR,
2776     GD_TYPE_SCROLLBAR_VERTICAL,
2777     GADGET_ID_SCROLL_LIST_VERTICAL,
2778     "scroll element list vertically"
2779   }
2780 };
2781
2782
2783 static struct
2784 {
2785   int x, y;
2786   int gadget_id;
2787   int gadget_id_align;
2788   int radio_button_nr;
2789   int *value;
2790   int checked_value;
2791   char *text_left, *text_right, *infotext;
2792 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
2793 {
2794   {
2795     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
2796     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
2797     RADIO_NR_RANDOM_ELEMENTS,
2798     &random_placement_method,           RANDOM_USE_PERCENTAGE,
2799     " ", "percentage",                  "use percentage for random elements"
2800   },
2801   {
2802     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
2803     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
2804     RADIO_NR_RANDOM_ELEMENTS,
2805     &random_placement_method,           RANDOM_USE_QUANTITY,
2806     " ", "quantity",                    "use quantity for random elements"
2807   }
2808 };
2809
2810 static struct
2811 {
2812   int x, y;
2813   int gadget_id;
2814   int gadget_id_align;
2815   boolean *value;
2816   char *text_above, *text_left, *text_right, *infotext;
2817 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
2818 {
2819   /* ---------- level and editor settings ---------------------------------- */
2820
2821   {
2822     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
2823     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
2824     &random_placement_background_restricted,
2825     NULL, NULL,
2826     "restrict random placement to:",    "set random placement restriction"
2827   },
2828   {
2829     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
2830     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
2831     &setup.editor.use_template_for_new_levels,
2832     "Template for new levels and CE/GE:", NULL,
2833     "use template for new levels",      "use template for level properties"
2834   },
2835   {
2836     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
2837     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
2838     &level.use_custom_template,
2839     NULL, NULL,
2840     "use template for custom elements", "use template for custom properties"
2841   },
2842
2843   /* ---------- element settings: configure (various elements) ------------- */
2844
2845   {
2846     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2847     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
2848     &stick_element_properties_window,
2849     NULL, NULL,
2850     "stick this screen to edit content","stick this screen to edit content"
2851   },
2852   {
2853     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2854     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
2855     &level.em_slippery_gems,
2856     NULL, NULL,
2857     "slip down from certain flat walls","use EM/DC style slipping behaviour"
2858   },
2859   {
2860     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2861     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
2862     &level.em_explodes_by_fire,
2863     NULL, NULL,
2864     "explodes with chain reaction",     "use R'n'D style explosion behaviour"
2865   },
2866   {
2867     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
2868     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
2869     &level.use_spring_bug,
2870     NULL, NULL,
2871     "use spring pushing bug",           "use odd spring pushing behaviour"
2872   },
2873   {
2874     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2875     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
2876     &level.use_time_orb_bug,
2877     NULL, NULL,
2878     "use time orb bug",                 "use odd time orb behaviour"
2879   },
2880   {
2881     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
2882     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
2883     &level.ball_random,
2884     NULL, NULL,
2885     "create single random element",     "only create one element from content"
2886   },
2887   {
2888     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2889     GADGET_ID_INITIAL_BALL_STATE,       GADGET_ID_NONE,
2890     &level.ball_state_initial,
2891     NULL, NULL,
2892     "magic ball initially activated",   "activate magic ball after level start"
2893   },
2894   {
2895     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2896     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
2897     &level.grow_into_diggable,
2898     NULL, NULL,
2899     "can grow into anything diggable",  "grow into more than just sand"
2900   },
2901   {
2902     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2903     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
2904     &level.auto_exit_sokoban,
2905     NULL, NULL,
2906     "exit level if all fields solved",  "automatically finish Sokoban levels"
2907   },
2908   {
2909     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
2910     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
2911     &level.continuous_snapping,
2912     NULL, NULL,
2913     "continuous snapping",              "use snapping without releasing key"
2914   },
2915   {
2916     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
2917     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
2918     &level.block_snap_field,
2919     NULL, NULL,
2920     "block snapped field when snapping", "use snapping delay to show animation"
2921   },
2922   {
2923     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
2924     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
2925     &level.block_last_field,
2926     NULL, NULL,
2927     "block last field when moving",     "player blocks last field when moving"
2928   },
2929   {
2930     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
2931     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
2932     &level.sp_block_last_field,
2933     NULL, NULL,
2934     "block last field when moving",     "player blocks last field when moving"
2935   },
2936   {
2937     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
2938     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
2939     &level.instant_relocation,
2940     NULL, NULL,
2941     "no scrolling when relocating",     "player gets relocated without delay"
2942   },
2943   {
2944     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2945     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
2946     &level.shifted_relocation,
2947     NULL, NULL,
2948     "no centering when relocating",     "level not centered after relocation"
2949   },
2950   {
2951     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
2952     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
2953     &level.lazy_relocation,
2954     NULL, NULL,
2955     "only redraw off-screen relocation","no redraw if relocation target visible"
2956   },
2957   {
2958     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
2959     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
2960     &level.use_start_element[0],
2961     NULL, NULL,
2962     "use level start element:",        "start level at this element's position"
2963   },
2964   {
2965     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
2966     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
2967     &level.use_artwork_element[0],
2968     NULL, NULL,
2969     "use artwork from element:",        "use player artwork from other element"
2970   },
2971   {
2972     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
2973     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
2974     &level.use_explosion_element[0],
2975     NULL, NULL,
2976     "use explosion from element:",      "use explosion properties from element"
2977   },
2978   {
2979     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
2980     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
2981     &level.initial_player_gravity[0],
2982     NULL, NULL,
2983     "use initial gravity",              "set initial player gravity"
2984   },
2985   {
2986     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2987     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
2988     &level.use_initial_inventory[0],
2989     NULL, NULL,
2990     "use initial inventory:",           "use collected elements on level start"
2991   },
2992   {
2993     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
2994     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
2995     &level.can_pass_to_walkable,
2996     NULL, NULL,
2997     "can pass to walkable element",     "player can pass to empty or walkable"
2998   },
2999   {
3000     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3001     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3002     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3003     NULL, NULL,
3004     "can fall into acid (with gravity)","player can fall into acid pool"
3005   },
3006   {
3007     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3008     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3009     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3010     NULL, NULL,
3011     "can move into acid",               "element can move into acid pool"
3012   },
3013   {
3014     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3015     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3016     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3017     NULL, NULL,
3018     "deadly when colliding with",       "element is deadly when hitting player"
3019   },
3020   {
3021     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3022     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3023     &level.envelope[0].autowrap,
3024     NULL, NULL,
3025     "auto-wrap",                        "automatically wrap envelope text"
3026   },
3027   {
3028     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3029     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3030     &level.envelope[0].centered,
3031     NULL, " ",
3032     "centered",                         "automatically center envelope text"
3033   },
3034
3035   /* ---------- element settings: configure 1 (custom elements) ----------- */
3036
3037   {
3038     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3039     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3040     &custom_element.use_gfx_element,
3041     NULL, NULL,
3042     "use graphic of element:",          "use existing element graphic"
3043   },
3044   {
3045     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3046     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3047     &level.use_custom_template,
3048     NULL, NULL,
3049     "use template",                     "use template for custom properties"
3050   },
3051   {
3052     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3053     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3054     &custom_element_properties[EP_ACCESSIBLE],
3055     NULL, NULL,
3056     NULL,                               "player can walk to or pass this field"
3057   },
3058   {
3059     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3060     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3061     &custom_element_properties[EP_GRAVITY_REACHABLE],
3062     NULL, NULL,
3063     "reachable despite gravity",        "player can walk/dig despite gravity"
3064   },
3065   {
3066     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3067     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3068     &custom_element.use_last_ce_value,
3069     NULL, NULL,
3070     "use last CE value after change",   "use last CE value after change"
3071   },
3072   {
3073     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3074     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3075     &custom_element_properties[EP_WALK_TO_OBJECT],
3076     NULL, NULL,
3077     NULL,                               "player can dig/collect/push element"
3078   },
3079   {
3080     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3081     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3082     &custom_element_properties[EP_INDESTRUCTIBLE],
3083     NULL, NULL,
3084     "indestructible",                   "element is indestructible"
3085   },
3086
3087   /* ---------- element settings: configure 2 (custom elements) ----------- */
3088
3089   {
3090     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3091     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
3092     &custom_element_properties[EP_CAN_MOVE],
3093     NULL, NULL,
3094     NULL,                               "element can move with some pattern"
3095   },
3096   {
3097     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
3098     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
3099     &custom_element_properties[EP_CAN_FALL],
3100     NULL, NULL,
3101     "can fall",                         "element can fall down"
3102   },
3103   {
3104     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
3105     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
3106     &custom_element_properties[EP_CAN_SMASH],
3107     NULL, " ",
3108     NULL,                               "element can smash other elements"
3109   },
3110   {
3111     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3112     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
3113     &custom_element_properties[EP_SLIPPERY],
3114     NULL, NULL,
3115     NULL,                               "other elements can fall down from it"
3116   },
3117   {
3118     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3119     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
3120     &custom_element_properties[EP_DEADLY],
3121     NULL, NULL,
3122     NULL,                               "element can kill the player"
3123   },
3124   {
3125     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3126     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
3127     &custom_element_properties[EP_CAN_EXPLODE],
3128     NULL, NULL,
3129     NULL,                               "element can explode"
3130   },
3131   {
3132     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
3133     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
3134     &custom_element_properties[EP_EXPLODES_BY_FIRE],
3135     NULL, NULL,
3136     "by fire",                          "element can explode by fire/explosion"
3137   },
3138   {
3139     -1,                                 ED_ELEMENT_SETTINGS_YPOS(11),
3140     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
3141     &custom_element_properties[EP_EXPLODES_SMASHED],
3142     NULL, " ",
3143     "smashed",                          "element can explode when smashed"
3144   },
3145   {
3146     -1,                                 ED_ELEMENT_SETTINGS_YPOS(11),
3147     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
3148     &custom_element_properties[EP_EXPLODES_IMPACT],
3149     NULL, " ",
3150     "impact",                           "element can explode on impact"
3151   },
3152
3153   /* ---------- element settings: advanced (custom elements) --------------- */
3154
3155   {
3156     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3157     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
3158     &custom_element_change.can_change,
3159     NULL, NULL,
3160     "element changes to:",              "change element on specified condition"
3161   },
3162   {
3163     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
3164     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
3165     &custom_element_change_events[CE_DELAY],
3166     NULL, NULL,
3167     NULL,                               "element changes after delay"
3168   },
3169   {
3170     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
3171     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
3172     &custom_element_change_events[CE_BY_DIRECT_ACTION],
3173     NULL, NULL,
3174     NULL,                               "element changes by direct action"
3175   },
3176   {
3177     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
3178     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
3179     &custom_element_change_events[CE_BY_OTHER_ACTION],
3180     NULL, NULL,
3181     NULL,                               "element changes by other element"
3182   },
3183   {
3184     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
3185     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
3186     &custom_element_change.explode,
3187     NULL, NULL,
3188     "explode instead of change",        "element explodes instead of change"
3189   },
3190   {
3191     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
3192     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
3193     &custom_element_change.use_target_content,
3194     NULL, NULL,
3195     "use extended change target:",      "element changes to more elements"
3196   },
3197   {
3198     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
3199     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
3200     &custom_element_change.only_if_complete,
3201     NULL, NULL,
3202     "replace all or nothing",           "only replace when all can be changed"
3203   },
3204   {
3205     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
3206     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
3207     &custom_element_change.use_random_replace,
3208     NULL, NULL,
3209     NULL,                               "use percentage for random replace"
3210   },
3211   {
3212     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3213     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
3214     &custom_element_change.has_action,
3215     NULL, NULL,
3216     NULL,                               "execute action on specified condition"
3217   },
3218 };
3219
3220 static struct
3221 {
3222   int x, y;
3223   int xoffset, yoffset;
3224   int gadget_id;
3225   int gadget_id_align;
3226   int *value;
3227   int area_xsize, area_ysize;
3228   char *text_left, *text_right, *text_below, *infotext;
3229 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
3230 {
3231   /* ---------- level playfield content ------------------------------------ */
3232
3233   {
3234     0,                                  0,
3235     0,                                  0,
3236     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
3237     NULL,
3238     -1, -1,     /* these values are not constant, but can change at runtime */
3239     NULL, NULL, NULL,                   NULL
3240   },
3241
3242   /* ---------- yam yam content -------------------------------------------- */
3243
3244   {
3245     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3246     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
3247     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
3248     &level.yamyam_content[0].e[0][0],   3, 3,
3249     NULL, NULL, "1",                    NULL
3250   },
3251   {
3252     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3253     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
3254     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
3255     &level.yamyam_content[1].e[0][0],   3, 3,
3256     NULL, NULL, "2",                    NULL
3257   },
3258   {
3259     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3260     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
3261     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
3262     &level.yamyam_content[2].e[0][0],   3, 3,
3263     NULL, NULL, "3",                    NULL
3264   },
3265   {
3266     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3267     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
3268     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
3269     &level.yamyam_content[3].e[0][0],   3, 3,
3270     NULL, NULL, "4",                    NULL
3271   },
3272   {
3273     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3274     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
3275     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
3276     &level.yamyam_content[4].e[0][0],   3, 3,
3277     NULL, NULL, "5",                    NULL
3278   },
3279   {
3280     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3281     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
3282     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
3283     &level.yamyam_content[5].e[0][0],   3, 3,
3284     NULL, NULL, "6",                    NULL
3285   },
3286   {
3287     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3288     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
3289     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
3290     &level.yamyam_content[6].e[0][0],   3, 3,
3291     NULL, NULL, "7",                    NULL
3292   },
3293   {
3294     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3295     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
3296     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
3297     &level.yamyam_content[7].e[0][0],   3, 3,
3298     NULL, NULL, "8",                    NULL
3299   },
3300
3301   /* ---------- magic ball content ----------------------------------------- */
3302
3303   {
3304     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3305     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
3306     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
3307     &level.ball_content[0].e[0][0],     3, 3,
3308     NULL, NULL, "1",                    NULL
3309   },
3310   {
3311     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3312     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
3313     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
3314     &level.ball_content[1].e[0][0],     3, 3,
3315     NULL, NULL, "2",                    NULL
3316   },
3317   {
3318     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3319     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
3320     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
3321     &level.ball_content[2].e[0][0],     3, 3,
3322     NULL, NULL, "3",                    NULL
3323   },
3324   {
3325     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3326     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
3327     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
3328     &level.ball_content[3].e[0][0],     3, 3,
3329     NULL, NULL, "4",                    NULL
3330   },
3331   {
3332     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3333     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
3334     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
3335     &level.ball_content[4].e[0][0],     3, 3,
3336     NULL, NULL, "5",                    NULL
3337   },
3338   {
3339     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3340     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
3341     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
3342     &level.ball_content[5].e[0][0],     3, 3,
3343     NULL, NULL, "6",                    NULL
3344   },
3345   {
3346     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3347     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
3348     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
3349     &level.ball_content[6].e[0][0],     3, 3,
3350     NULL, NULL, "7",                    NULL
3351   },
3352   {
3353     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3354     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
3355     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
3356     &level.ball_content[7].e[0][0],     3, 3,
3357     NULL, NULL, "8",                    NULL
3358   },
3359
3360   /* ---------- android content -------------------------------------------- */
3361
3362   {
3363     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(5),
3364     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3365     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
3366     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
3367     "elements:", NULL, NULL,            "elements android can clone"
3368   },
3369
3370   /* ---------- amoeba content --------------------------------------------- */
3371
3372   {
3373     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
3374     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3375     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
3376     &level.amoeba_content,              1, 1,
3377     "content:", NULL, NULL,             "amoeba content"
3378   },
3379
3380   /* ---------- level start element ---------------------------------------- */
3381
3382   {
3383     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
3384     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3385     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
3386     &level.start_element[0],            1, 1,
3387     NULL, NULL, NULL,                   "level start element"
3388   },
3389
3390   /* ---------- player artwork element ------------------------------------- */
3391
3392   {
3393     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
3394     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3395     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
3396     &level.artwork_element[0],          1, 1,
3397     NULL, NULL, NULL,                   "element for player artwork"
3398   },
3399
3400   /* ---------- player explosion element ----------------------------------- */
3401
3402   {
3403     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
3404     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3405     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
3406     &level.explosion_element[0],        1, 1,
3407     NULL, NULL, NULL,                   "element for player explosion"
3408   },
3409
3410   /* ---------- player initial inventory ----------------------------------- */
3411
3412   {
3413     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3414     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3415     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
3416     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
3417     NULL, NULL, NULL,                   "content for initial inventory"
3418   },
3419
3420   /* ---------- element settings: configure 1 (custom elements) ----------- */
3421
3422   /* ---------- custom graphic --------------------------------------------- */
3423
3424   {
3425     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3426     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3427     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
3428     &custom_element.gfx_element_initial,1, 1,
3429     NULL, NULL, NULL,                   "custom graphic element"
3430   },
3431
3432   /* ---------- element settings: configure 2 (custom elements) ----------- */
3433
3434   /* ---------- custom content (when exploding) ---------------------------- */
3435
3436   {
3437     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(10),
3438     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
3439     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, /* align three rows */
3440     &custom_element.content.e[0][0],    3, 3,
3441     "content:", NULL, NULL,             NULL
3442   },
3443
3444   /* ---------- custom enter and leave element (when moving) --------------- */
3445
3446   {
3447     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
3448     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3449     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
3450     &custom_element.move_enter_element, 1, 1,
3451     "can dig:", " ", NULL,              "element that can be digged/collected"
3452   },
3453   {
3454     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
3455     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3456     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
3457     &custom_element.move_leave_element, 1, 1,
3458     NULL, NULL, NULL,                   "element that will be left behind"
3459   },
3460
3461   /* ---------- element settings: advanced (custom elements) --------------- */
3462
3463   /* ---------- custom change target --------------------------------------- */
3464
3465   {
3466     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3467     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3468     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
3469     &custom_element_change.target_element, 1, 1,
3470     NULL, "after/when:", NULL,          "new target element after change"
3471   },
3472
3473   /* ---------- custom change content (extended change target) ------------- */
3474
3475   {
3476     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
3477     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
3478     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, /* align three rows */
3479     &custom_element_change.target_content.e[0][0], 3, 3,
3480     NULL, NULL, NULL,                   "new extended elements after change"
3481   },
3482
3483   /* ---------- custom change trigger (element causing change) ------------- */
3484
3485   {
3486     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
3487     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3488     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
3489     &custom_element_change.initial_trigger_element, 1, 1,
3490     NULL, NULL, NULL,                   "other element triggering change"
3491   },
3492
3493   /* ---------- custom change action (element used for action) ------------- */
3494
3495   {
3496     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
3497     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3498     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
3499     &custom_element_change.action_element, 1, 1,
3500     NULL, NULL, NULL,                   "element used as action parameter"
3501   },
3502
3503   /* ---------- group element content -------------------------------------- */
3504
3505   {
3506     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
3507     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3508     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
3509     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
3510     "content:", NULL, NULL,             NULL
3511   },
3512
3513   /* ---------- random background (for random painting) -------------------- */
3514
3515   {
3516     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
3517     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
3518     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
3519     &random_placement_background_element, 1, 1,
3520     NULL, NULL, NULL,                   "random placement background"
3521   },
3522 };
3523
3524
3525 /*
3526   -----------------------------------------------------------------------------
3527   some internally used variables
3528   -----------------------------------------------------------------------------
3529 */
3530
3531 /* maximal size of level editor drawing area */
3532 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
3533
3534 /* actual size of level editor drawing area */
3535 static int ed_fieldx, ed_fieldy;
3536
3537 /* actual position of level editor drawing area in level playfield */
3538 static int level_xpos = -1, level_ypos = -1;
3539
3540 /* actual tile size used to display playfield drawing area */
3541 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
3542
3543 #define IN_ED_FIELD(x,y)        IN_FIELD(x, y, ed_fieldx, ed_fieldy)
3544
3545 /* drawing elements on the three mouse buttons */
3546 static int new_element1 = EL_WALL;
3547 static int new_element2 = EL_EMPTY;
3548 static int new_element3 = EL_SAND;
3549
3550 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
3551 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
3552                                 (button) == 2 ? new_element2 : \
3553                                 (button) == 3 ? new_element3 : EL_EMPTY)
3554
3555 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
3556
3557 static int use_permanent_palette = TRUE;
3558
3559 #define PX              (use_permanent_palette ? DX : SX)
3560 #define PY              (use_permanent_palette ? DY : SY)
3561 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
3562 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
3563
3564 /* forward declaration for internal use */
3565 static void ModifyEditorCounterValue(int, int);
3566 static void ModifyEditorCounterLimits(int, int, int);
3567 static void ModifyEditorSelectboxValue(int, int);
3568 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
3569 static void ModifyEditorDrawingArea(int, int, int);
3570 static void ModifyEditorElementList();
3571 static void AdjustElementListScrollbar();
3572 static void RedrawDrawingElements();
3573 static void DrawDrawingWindow();
3574 static void DrawLevelInfoWindow();
3575 static void DrawPropertiesWindow();
3576 static void DrawPaletteWindow();
3577 static void UpdateCustomElementGraphicGadgets();
3578 static boolean checkPropertiesConfig(int);
3579 static void CopyLevelToUndoBuffer(int);
3580 static void HandleDrawingAreas(struct GadgetInfo *);
3581 static void HandleCounterButtons(struct GadgetInfo *);
3582 static void HandleTextInputGadgets(struct GadgetInfo *);
3583 static void HandleTextAreaGadgets(struct GadgetInfo *);
3584 static void HandleSelectboxGadgets(struct GadgetInfo *);
3585 static void HandleTextbuttonGadgets(struct GadgetInfo *);
3586 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
3587 static void HandleRadiobuttons(struct GadgetInfo *);
3588 static void HandleCheckbuttons(struct GadgetInfo *);
3589 static void HandleControlButtons(struct GadgetInfo *);
3590 static void HandleDrawingAreaInfo(struct GadgetInfo *);
3591 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
3592 static boolean AskToCopyAndModifyLevelTemplate();
3593
3594 static int num_editor_gadgets = 0;      /* dynamically determined */
3595
3596 static struct GadgetInfo **level_editor_gadget = NULL;
3597 static int *right_gadget_border = NULL;
3598
3599 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
3600 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
3601 static boolean draw_with_brush = FALSE;
3602 static int properties_element = 0;
3603
3604 static short FieldBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3605 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3606 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3607 static int undo_buffer_position = 0;
3608 static int undo_buffer_steps = 0;
3609 static int redo_buffer_steps = 0;
3610
3611 static int edit_mode;
3612 static int edit_mode_levelinfo;
3613 static int edit_mode_properties;
3614
3615 static int element_shift = 0;
3616
3617 static int editor_el_players[] =
3618 {
3619   EL_PLAYER_1,
3620   EL_PLAYER_2,
3621   EL_PLAYER_3,
3622   EL_PLAYER_4
3623 };
3624 static int *editor_el_players_ptr = editor_el_players;
3625 static int num_editor_el_players = SIZEOF_ARRAY_INT(editor_el_players);
3626
3627 static int editor_hl_boulderdash[] =
3628 {
3629   EL_INTERNAL_CASCADE_BD_ACTIVE,
3630   EL_CHAR('B'),
3631   EL_CHAR('D'),
3632   EL_EMPTY,
3633 };
3634
3635 static int editor_el_boulderdash[] =
3636 {
3637   EL_EMPTY,
3638   EL_SAND,
3639   EL_BD_ROCK,
3640   EL_BD_DIAMOND,
3641
3642   EL_STEELWALL,
3643   EL_BD_WALL,
3644   EL_BD_EXPANDABLE_WALL,
3645   EL_BD_MAGIC_WALL,
3646
3647   EL_BD_AMOEBA,
3648   EL_BD_BUTTERFLY_UP,
3649   EL_BD_FIREFLY_UP,
3650   EL_EXIT_CLOSED,
3651
3652   EL_BD_BUTTERFLY_LEFT,
3653   EL_BD_FIREFLY_LEFT,
3654   EL_BD_BUTTERFLY_RIGHT,
3655   EL_BD_FIREFLY_RIGHT,
3656
3657   EL_EMPTY,
3658   EL_BD_BUTTERFLY_DOWN,
3659   EL_BD_FIREFLY_DOWN,
3660   EL_EXIT_OPEN,
3661 };
3662 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
3663 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
3664 static int num_editor_hl_boulderdash = SIZEOF_ARRAY_INT(editor_hl_boulderdash);
3665 static int num_editor_el_boulderdash = SIZEOF_ARRAY_INT(editor_el_boulderdash);
3666
3667 static int editor_hl_emerald_mine[] =
3668 {
3669   EL_INTERNAL_CASCADE_EM_ACTIVE,
3670   EL_CHAR('E'),
3671   EL_CHAR('M'),
3672   EL_EMPTY,
3673 };
3674
3675 static int editor_el_emerald_mine[] =
3676 {
3677   EL_SAND,
3678   EL_ROCK,
3679   EL_QUICKSAND_EMPTY,
3680   EL_QUICKSAND_FULL,
3681
3682   EL_STEELWALL,
3683   EL_WALL,
3684   EL_WALL_SLIPPERY,
3685   EL_MAGIC_WALL,
3686
3687   EL_EMERALD,
3688   EL_DIAMOND,
3689   EL_NUT,
3690   EL_BOMB,
3691
3692   EL_WALL_EMERALD,
3693   EL_WALL_DIAMOND,
3694   EL_DYNAMITE,
3695   EL_DYNAMITE_ACTIVE,
3696
3697   EL_YAMYAM,
3698   EL_BUG_UP,
3699   EL_SPACESHIP_UP,
3700   EL_ROBOT,
3701
3702   EL_BUG_LEFT,
3703   EL_SPACESHIP_LEFT,
3704   EL_BUG_RIGHT,
3705   EL_SPACESHIP_RIGHT,
3706
3707   EL_ROBOT_WHEEL,
3708   EL_BUG_DOWN,
3709   EL_SPACESHIP_DOWN,
3710   EL_INVISIBLE_WALL,
3711
3712   EL_ACID_POOL_TOPLEFT,
3713   EL_ACID,
3714   EL_ACID_POOL_TOPRIGHT,
3715   EL_AMOEBA_DROP,
3716
3717   EL_ACID_POOL_BOTTOMLEFT,
3718   EL_ACID_POOL_BOTTOM,
3719   EL_ACID_POOL_BOTTOMRIGHT,
3720   EL_AMOEBA_WET,
3721
3722   EL_EM_KEY_1,
3723   EL_EM_KEY_2,
3724   EL_EM_KEY_3,
3725   EL_EM_KEY_4,
3726
3727   EL_EM_GATE_1,
3728   EL_EM_GATE_2,
3729   EL_EM_GATE_3,
3730   EL_EM_GATE_4,
3731
3732   EL_EM_GATE_1_GRAY,
3733   EL_EM_GATE_2_GRAY,
3734   EL_EM_GATE_3_GRAY,
3735   EL_EM_GATE_4_GRAY,
3736
3737   EL_EM_EXIT_CLOSED,
3738   EL_EM_EXIT_OPEN,
3739   EL_EM_STEEL_EXIT_CLOSED,
3740   EL_EM_STEEL_EXIT_OPEN,
3741 };
3742 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
3743 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
3744 static int num_editor_hl_emerald_mine=SIZEOF_ARRAY_INT(editor_hl_emerald_mine);
3745 static int num_editor_el_emerald_mine=SIZEOF_ARRAY_INT(editor_el_emerald_mine);
3746
3747 static int editor_hl_emerald_mine_club[] =
3748 {
3749   EL_INTERNAL_CASCADE_EMC_ACTIVE,
3750   EL_CHAR('E'),
3751   EL_CHAR('M'),
3752   EL_CHAR('C'),
3753 };
3754
3755 static int editor_el_emerald_mine_club[] =
3756 {
3757   EL_EMC_KEY_5,
3758   EL_EMC_KEY_6,
3759   EL_EMC_KEY_7,
3760   EL_EMC_KEY_8,
3761
3762   EL_EMC_GATE_5,
3763   EL_EMC_GATE_6,
3764   EL_EMC_GATE_7,
3765   EL_EMC_GATE_8,
3766
3767   EL_EMC_GATE_5_GRAY,
3768   EL_EMC_GATE_6_GRAY,
3769   EL_EMC_GATE_7_GRAY,
3770   EL_EMC_GATE_8_GRAY,
3771
3772   EL_EMC_STEELWALL_1,
3773   EL_EMC_STEELWALL_2,
3774   EL_EMC_STEELWALL_3,
3775   EL_EMC_STEELWALL_4,
3776
3777   EL_EMC_WALL_13,
3778   EL_EMC_WALL_14,
3779   EL_EMC_WALL_15,
3780   EL_EMC_WALL_16,
3781
3782   EL_EMC_WALL_SLIPPERY_1,
3783   EL_EMC_WALL_SLIPPERY_2,
3784   EL_EMC_WALL_SLIPPERY_3,
3785   EL_EMC_WALL_SLIPPERY_4,
3786
3787   EL_EMC_WALL_1,
3788   EL_EMC_WALL_2,
3789   EL_EMC_WALL_3,
3790   EL_EMC_WALL_4,
3791
3792   EL_EMC_WALL_5,
3793   EL_EMC_WALL_6,
3794   EL_EMC_WALL_7,
3795   EL_EMC_WALL_8,
3796
3797   EL_EMC_WALL_9,
3798   EL_EMC_WALL_10,
3799   EL_EMC_WALL_11,
3800   EL_EMC_WALL_12,
3801
3802   EL_EMC_GRASS,
3803   EL_EMC_FAKE_GRASS,
3804   EL_EMC_PLANT,
3805   EL_EMC_DRIPPER,
3806
3807   EL_EMC_MAGIC_BALL,
3808   EL_EMC_MAGIC_BALL_SWITCH,
3809   EL_SPRING,
3810   EL_EMC_SPRING_BUMPER,
3811
3812   EL_EMC_LENSES,
3813   EL_EMC_MAGNIFIER,
3814   EL_EM_DYNAMITE,
3815   EL_EM_DYNAMITE_ACTIVE,
3816
3817   EL_BALLOON,
3818   EL_YAMYAM_UP,
3819   EL_BALLOON_SWITCH_UP,
3820   EL_BALLOON_SWITCH_ANY,
3821
3822   EL_YAMYAM_LEFT,
3823   EL_BALLOON_SWITCH_LEFT,
3824   EL_YAMYAM_RIGHT,
3825   EL_BALLOON_SWITCH_RIGHT,
3826
3827   EL_EMC_ANDROID,
3828   EL_YAMYAM_DOWN,
3829   EL_BALLOON_SWITCH_DOWN,
3830   EL_BALLOON_SWITCH_NONE,
3831 };
3832 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
3833 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
3834 static int num_editor_hl_emerald_mine_club=SIZEOF_ARRAY_INT(editor_hl_emerald_mine_club);
3835 static int num_editor_el_emerald_mine_club=SIZEOF_ARRAY_INT(editor_el_emerald_mine_club);
3836
3837 static int editor_hl_rnd[] =
3838 {
3839   EL_INTERNAL_CASCADE_RND_ACTIVE,
3840   EL_CHAR('R'),
3841   EL_CHAR('N'),
3842   EL_CHAR('D'),
3843 };
3844
3845 static int editor_el_rnd[] =
3846 {
3847   EL_KEY_1,
3848   EL_KEY_2,
3849   EL_KEY_3,
3850   EL_KEY_4,
3851
3852   EL_GATE_1,
3853   EL_GATE_2,
3854   EL_GATE_3,
3855   EL_GATE_4,
3856
3857   EL_GATE_1_GRAY,
3858   EL_GATE_2_GRAY,
3859   EL_GATE_3_GRAY,
3860   EL_GATE_4_GRAY,
3861
3862   EL_ARROW_LEFT,
3863   EL_ARROW_RIGHT,
3864   EL_ARROW_UP,
3865   EL_ARROW_DOWN,
3866
3867   EL_AMOEBA_DEAD,
3868   EL_AMOEBA_DRY,
3869   EL_AMOEBA_FULL,
3870   EL_GAME_OF_LIFE,
3871
3872   EL_EMERALD_YELLOW,
3873   EL_EMERALD_RED,
3874   EL_EMERALD_PURPLE,
3875   EL_BIOMAZE,
3876
3877   EL_WALL_EMERALD_YELLOW,
3878   EL_WALL_EMERALD_RED,
3879   EL_WALL_EMERALD_PURPLE,
3880   EL_WALL_BD_DIAMOND,
3881
3882   EL_SPEED_PILL,
3883   EL_PACMAN_UP,
3884   EL_TIME_ORB_FULL,
3885   EL_TIME_ORB_EMPTY,
3886
3887   EL_PACMAN_LEFT,
3888   EL_DARK_YAMYAM,
3889   EL_PACMAN_RIGHT,
3890   EL_EMPTY,
3891
3892   EL_BLACK_ORB,
3893   EL_PACMAN_DOWN,
3894   EL_LAMP,
3895   EL_LAMP_ACTIVE,
3896
3897   EL_DYNABOMB_INCREASE_NUMBER,
3898   EL_DYNABOMB_INCREASE_SIZE,
3899   EL_DYNABOMB_INCREASE_POWER,
3900   EL_STONEBLOCK,
3901
3902   EL_MOLE,
3903   EL_PENGUIN,
3904   EL_PIG,
3905   EL_DRAGON,
3906
3907   EL_BUG,
3908   EL_MOLE_UP,
3909   EL_BD_BUTTERFLY,
3910   EL_BD_FIREFLY,
3911
3912   EL_MOLE_LEFT,
3913   EL_SATELLITE,
3914   EL_MOLE_RIGHT,
3915   EL_PACMAN,
3916
3917   EL_SPACESHIP,
3918   EL_MOLE_DOWN,
3919   EL_INVISIBLE_STEELWALL,
3920   EL_INVISIBLE_WALL,
3921
3922   EL_EXPANDABLE_WALL,
3923   EL_EXPANDABLE_WALL_HORIZONTAL,
3924   EL_EXPANDABLE_WALL_VERTICAL,
3925   EL_EXPANDABLE_WALL_ANY,
3926 };
3927 static int *editor_hl_rnd_ptr = editor_hl_rnd;
3928 static int *editor_el_rnd_ptr = editor_el_rnd;
3929 static int num_editor_hl_rnd = SIZEOF_ARRAY_INT(editor_hl_rnd);
3930 static int num_editor_el_rnd = SIZEOF_ARRAY_INT(editor_el_rnd);
3931
3932 static int editor_hl_sokoban[] =
3933 {
3934   EL_INTERNAL_CASCADE_SB_ACTIVE,
3935   EL_CHAR('S'),
3936   EL_CHAR('B'),
3937   EL_EMPTY,
3938 };
3939
3940 static int editor_el_sokoban[] =
3941 {
3942   EL_SOKOBAN_OBJECT,
3943   EL_SOKOBAN_FIELD_EMPTY,
3944   EL_SOKOBAN_FIELD_FULL,
3945   EL_SOKOBAN_FIELD_PLAYER,
3946 };
3947 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
3948 static int *editor_el_sokoban_ptr = editor_el_sokoban;
3949 static int num_editor_hl_sokoban = SIZEOF_ARRAY_INT(editor_hl_sokoban);
3950 static int num_editor_el_sokoban = SIZEOF_ARRAY_INT(editor_el_sokoban);
3951
3952 static int editor_hl_supaplex[] =
3953 {
3954   EL_INTERNAL_CASCADE_SP_ACTIVE,
3955   EL_CHAR('S'),
3956   EL_CHAR('P'),
3957   EL_EMPTY,
3958 };
3959
3960 static int editor_el_supaplex[] =
3961 {
3962   EL_SP_MURPHY,
3963   EL_EMPTY,
3964   EL_SP_BASE,
3965   EL_SP_BUGGY_BASE,
3966
3967   EL_SP_INFOTRON,
3968   EL_SP_ZONK,
3969   EL_SP_SNIKSNAK,
3970   EL_SP_ELECTRON,
3971
3972   EL_SP_DISK_RED,
3973   EL_SP_DISK_ORANGE,
3974   EL_SP_DISK_YELLOW,
3975   EL_SP_TERMINAL,
3976
3977   EL_SP_EXIT_CLOSED,
3978   EL_SP_PORT_HORIZONTAL,
3979   EL_SP_PORT_VERTICAL,
3980   EL_SP_PORT_ANY,
3981
3982   EL_SP_PORT_LEFT,
3983   EL_SP_PORT_RIGHT,
3984   EL_SP_PORT_UP,
3985   EL_SP_PORT_DOWN,
3986
3987   EL_SP_GRAVITY_PORT_LEFT,
3988   EL_SP_GRAVITY_PORT_RIGHT,
3989   EL_SP_GRAVITY_PORT_UP,
3990   EL_SP_GRAVITY_PORT_DOWN,
3991
3992   EL_SP_GRAVITY_ON_PORT_LEFT,
3993   EL_SP_GRAVITY_ON_PORT_RIGHT,
3994   EL_SP_GRAVITY_ON_PORT_UP,
3995   EL_SP_GRAVITY_ON_PORT_DOWN,
3996
3997   EL_SP_GRAVITY_OFF_PORT_LEFT,
3998   EL_SP_GRAVITY_OFF_PORT_RIGHT,
3999   EL_SP_GRAVITY_OFF_PORT_UP,
4000   EL_SP_GRAVITY_OFF_PORT_DOWN,
4001
4002   EL_SP_HARDWARE_GRAY,
4003   EL_SP_HARDWARE_GREEN,
4004   EL_SP_HARDWARE_BLUE,
4005   EL_SP_HARDWARE_RED,
4006
4007   EL_SP_HARDWARE_BASE_1,
4008   EL_SP_HARDWARE_BASE_2,
4009   EL_SP_HARDWARE_BASE_3,
4010   EL_SP_HARDWARE_BASE_4,
4011
4012   EL_SP_HARDWARE_BASE_5,
4013   EL_SP_HARDWARE_BASE_6,
4014   EL_SP_HARDWARE_YELLOW,
4015   EL_SP_CHIP_TOP,
4016
4017   EL_SP_CHIP_SINGLE,
4018   EL_SP_CHIP_LEFT,
4019   EL_SP_CHIP_RIGHT,
4020   EL_SP_CHIP_BOTTOM,
4021 };
4022 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
4023 static int *editor_el_supaplex_ptr = editor_el_supaplex;
4024 static int num_editor_hl_supaplex = SIZEOF_ARRAY_INT(editor_hl_supaplex);
4025 static int num_editor_el_supaplex = SIZEOF_ARRAY_INT(editor_el_supaplex);
4026
4027 static int editor_hl_diamond_caves[] =
4028 {
4029   EL_INTERNAL_CASCADE_DC_ACTIVE,
4030   EL_CHAR('D'),
4031   EL_CHAR('C'),
4032   EL_CHAR('2'),
4033 };
4034
4035 static int editor_el_diamond_caves[] =
4036 {
4037   EL_PEARL,
4038   EL_CRYSTAL,
4039   EL_WALL_PEARL,
4040   EL_WALL_CRYSTAL,
4041
4042   EL_CONVEYOR_BELT_1_LEFT,
4043   EL_CONVEYOR_BELT_1_MIDDLE,
4044   EL_CONVEYOR_BELT_1_RIGHT,
4045   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
4046
4047   EL_CONVEYOR_BELT_2_LEFT,
4048   EL_CONVEYOR_BELT_2_MIDDLE,
4049   EL_CONVEYOR_BELT_2_RIGHT,
4050   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
4051
4052   EL_CONVEYOR_BELT_3_LEFT,
4053   EL_CONVEYOR_BELT_3_MIDDLE,
4054   EL_CONVEYOR_BELT_3_RIGHT,
4055   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
4056
4057   EL_CONVEYOR_BELT_4_LEFT,
4058   EL_CONVEYOR_BELT_4_MIDDLE,
4059   EL_CONVEYOR_BELT_4_RIGHT,
4060   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
4061
4062   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
4063   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
4064   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
4065   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
4066
4067   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
4068   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
4069   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
4070   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
4071
4072   EL_TIMEGATE_CLOSED,
4073   EL_TIMEGATE_OPEN,
4074   EL_TIMEGATE_SWITCH,
4075   EL_DC_TIMEGATE_SWITCH,
4076
4077   EL_SWITCHGATE_CLOSED,
4078   EL_SWITCHGATE_OPEN,
4079   EL_SWITCHGATE_SWITCH_UP,
4080   EL_SWITCHGATE_SWITCH_DOWN,
4081
4082   EL_LIGHT_SWITCH,
4083   EL_LIGHT_SWITCH_ACTIVE,
4084   EL_DC_SWITCHGATE_SWITCH_UP,
4085   EL_DC_SWITCHGATE_SWITCH_DOWN,
4086
4087   EL_STEEL_EXIT_CLOSED,
4088   EL_STEEL_EXIT_OPEN,
4089   EL_STEELWALL_SLIPPERY,
4090   EL_INVISIBLE_SAND,
4091
4092   EL_QUICKSAND_FAST_EMPTY,
4093   EL_QUICKSAND_FAST_FULL,
4094   EL_LANDMINE,
4095   EL_DC_LANDMINE,
4096
4097   EL_SHIELD_NORMAL,
4098   EL_SHIELD_DEADLY,
4099   EL_EXTRA_TIME,
4100   EL_DC_MAGIC_WALL,
4101
4102   EL_ENVELOPE_1,
4103   EL_ENVELOPE_2,
4104   EL_ENVELOPE_3,
4105   EL_ENVELOPE_4,
4106
4107   EL_SIGN_RADIOACTIVITY,
4108   EL_SIGN_WHEELCHAIR,
4109   EL_SIGN_PARKING,
4110   EL_SIGN_NO_ENTRY,
4111
4112   EL_SIGN_GIVE_WAY,
4113   EL_SIGN_ENTRY_FORBIDDEN,
4114   EL_SIGN_EMERGENCY_EXIT,
4115   EL_SIGN_YIN_YANG,
4116
4117 #if 0
4118   EL_SIGN_SPERMS,
4119   EL_SIGN_BULLET,
4120   EL_SIGN_HEART,
4121   EL_SIGN_CROSS,
4122
4123   EL_SIGN_FRANKIE,
4124   EL_EMPTY,
4125   EL_EMPTY,
4126   EL_EMPTY,
4127
4128   EL_SPERMS,
4129   EL_BULLET,
4130   EL_HEART,
4131   EL_CROSS,
4132
4133   EL_FRANKIE,
4134   EL_EMPTY,
4135   EL_EMPTY,
4136   EL_EMPTY,
4137 #endif
4138
4139   EL_DC_STEELWALL_2_SINGLE,
4140   EL_DC_STEELWALL_2_TOP,
4141   EL_SIGN_EXCLAMATION,
4142   EL_SIGN_STOP,
4143
4144   EL_DC_STEELWALL_2_LEFT,
4145   EL_DC_STEELWALL_2_MIDDLE,
4146   EL_DC_STEELWALL_2_HORIZONTAL,
4147   EL_DC_STEELWALL_2_RIGHT,
4148
4149   EL_DC_STEELWALL_1_TOPLEFT,
4150   EL_DC_STEELWALL_2_VERTICAL,
4151   EL_DC_STEELWALL_1_TOPRIGHT,
4152   EL_DC_GATE_WHITE,
4153
4154   EL_DC_STEELWALL_1_VERTICAL,
4155   EL_DC_STEELWALL_2_BOTTOM,
4156   EL_DC_KEY_WHITE,
4157   EL_DC_GATE_WHITE_GRAY,
4158
4159   EL_DC_STEELWALL_1_BOTTOMLEFT,
4160   EL_DC_STEELWALL_1_HORIZONTAL,
4161   EL_DC_STEELWALL_1_BOTTOMRIGHT,
4162   EL_DC_GATE_FAKE_GRAY,
4163
4164   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
4165   EL_DC_STEELWALL_1_BOTTOM,
4166   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
4167   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
4168
4169   EL_DC_STEELWALL_1_RIGHT,
4170   EL_EMPTY,
4171   EL_DC_STEELWALL_1_LEFT,
4172   EL_EXPANDABLE_STEELWALL_VERTICAL,
4173
4174   EL_DC_STEELWALL_1_TOPRIGHT_2,
4175   EL_DC_STEELWALL_1_TOP,
4176   EL_DC_STEELWALL_1_TOPLEFT_2,
4177   EL_EXPANDABLE_STEELWALL_ANY,
4178 };
4179 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
4180 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
4181 static int num_editor_hl_diamond_caves = SIZEOF_ARRAY_INT(editor_hl_diamond_caves);
4182 static int num_editor_el_diamond_caves = SIZEOF_ARRAY_INT(editor_el_diamond_caves);
4183
4184 static int editor_hl_dx_boulderdash[] =
4185 {
4186   EL_INTERNAL_CASCADE_DX_ACTIVE,
4187   EL_CHAR('D'),
4188   EL_CHAR('X'),
4189   EL_EMPTY,
4190 };
4191
4192 static int editor_el_dx_boulderdash[] =
4193 {
4194   EL_EMPTY,
4195   EL_TUBE_RIGHT_DOWN,
4196   EL_TUBE_HORIZONTAL_DOWN,
4197   EL_TUBE_LEFT_DOWN,
4198
4199   EL_TUBE_HORIZONTAL,
4200   EL_TUBE_VERTICAL_RIGHT,
4201   EL_TUBE_ANY,
4202   EL_TUBE_VERTICAL_LEFT,
4203
4204   EL_TUBE_VERTICAL,
4205   EL_TUBE_RIGHT_UP,
4206   EL_TUBE_HORIZONTAL_UP,
4207   EL_TUBE_LEFT_UP,
4208
4209   EL_TRAP,
4210   EL_DX_SUPABOMB,
4211   EL_EMPTY,
4212   EL_EMPTY
4213 };
4214 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
4215 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
4216 static int num_editor_hl_dx_boulderdash = SIZEOF_ARRAY_INT(editor_hl_dx_boulderdash);
4217 static int num_editor_el_dx_boulderdash = SIZEOF_ARRAY_INT(editor_el_dx_boulderdash);
4218
4219 static int editor_hl_mirror_magic[] =
4220 {
4221   EL_INTERNAL_CASCADE_MM_ACTIVE,
4222   EL_CHAR('M'),
4223   EL_CHAR('M'),
4224   EL_EMPTY,
4225 };
4226
4227 static int editor_el_mirror_magic[] =
4228 {
4229   EL_MM_MCDUFFIN_RIGHT,
4230   EL_MM_MCDUFFIN_UP,
4231   EL_MM_MCDUFFIN_LEFT,
4232   EL_MM_MCDUFFIN_DOWN,
4233
4234   EL_MM_MIRROR_START,
4235   EL_MM_MIRROR_FIXED_START,
4236   EL_MM_POLARISATOR_START,
4237   EL_MM_POLARISATOR_CROSS_START,
4238
4239   EL_MM_BEAMER_RED_START,
4240   EL_MM_BEAMER_YELLOW_START,
4241   EL_MM_BEAMER_GREEN_START,
4242   EL_MM_BEAMER_BLUE_START,
4243
4244   EL_MM_PRISM,
4245   EL_MM_FUSE_ACTIVE,
4246   EL_MM_PACMAN_RIGHT,
4247   EL_MM_EXIT_CLOSED,
4248
4249   EL_MM_KETTLE,
4250   EL_MM_BOMB,
4251   EL_MM_KEY,
4252   EL_MM_FUEL_FULL,
4253
4254   EL_MM_LIGHTBULB,
4255   EL_MM_LIGHTBULB_ACTIVE,
4256   EL_MM_GRAY_BALL,
4257   EL_MM_LIGHTBALL,
4258
4259   EL_MM_STEEL_WALL,
4260   EL_MM_WOODEN_WALL,
4261   EL_MM_ICE_WALL,
4262   EL_MM_AMOEBA_WALL,
4263
4264   EL_MM_STEEL_LOCK,
4265   EL_MM_WOODEN_LOCK,
4266   EL_MM_STEEL_BLOCK,
4267   EL_MM_WOODEN_BLOCK,
4268
4269   EL_MM_STEEL_GRID_FIXED_1,
4270   EL_MM_STEEL_GRID_FIXED_2,
4271   EL_MM_STEEL_GRID_FIXED_3,
4272   EL_MM_STEEL_GRID_FIXED_4,
4273
4274   EL_MM_WOODEN_GRID_FIXED_1,
4275   EL_MM_WOODEN_GRID_FIXED_2,
4276   EL_MM_WOODEN_GRID_FIXED_3,
4277   EL_MM_WOODEN_GRID_FIXED_4
4278 };
4279 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
4280 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
4281 static int num_editor_hl_mirror_magic = SIZEOF_ARRAY_INT(editor_hl_mirror_magic);
4282 static int num_editor_el_mirror_magic = SIZEOF_ARRAY_INT(editor_el_mirror_magic);
4283
4284 static int editor_hl_deflektor[] =
4285 {
4286   EL_INTERNAL_CASCADE_DF_ACTIVE,
4287   EL_CHAR('D'),
4288   EL_CHAR('F'),
4289   EL_EMPTY,
4290 };
4291
4292 static int editor_el_deflektor[] =
4293 {
4294   EL_DF_LASER_RIGHT,
4295   EL_DF_LASER_UP,
4296   EL_DF_LASER_LEFT,
4297   EL_DF_LASER_DOWN,
4298
4299   EL_DF_RECEIVER_RIGHT,
4300   EL_DF_RECEIVER_UP,
4301   EL_DF_RECEIVER_LEFT,
4302   EL_DF_RECEIVER_DOWN,
4303
4304   EL_DF_MIRROR_START,
4305   EL_DF_MIRROR_ROTATING_START,
4306   EL_DF_CELL,
4307   EL_DF_MINE,
4308
4309   EL_DF_FIBRE_OPTIC_RED_1,
4310   EL_DF_FIBRE_OPTIC_YELLOW_1,
4311   EL_DF_FIBRE_OPTIC_GREEN_1,
4312   EL_DF_FIBRE_OPTIC_BLUE_1,
4313
4314   EL_DF_STEEL_GRID_FIXED_START,
4315   EL_DF_STEEL_GRID_ROTATING_START,
4316   EL_DF_WOODEN_GRID_FIXED_START,
4317   EL_DF_WOODEN_GRID_ROTATING_START,
4318
4319   EL_DF_STEEL_WALL,
4320   EL_DF_WOODEN_WALL,
4321   EL_DF_REFRACTOR,
4322   EL_EMPTY
4323 };
4324 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
4325 static int *editor_el_deflektor_ptr = editor_el_deflektor;
4326 static int num_editor_hl_deflektor = SIZEOF_ARRAY_INT(editor_hl_deflektor);
4327 static int num_editor_el_deflektor = SIZEOF_ARRAY_INT(editor_el_deflektor);
4328
4329 static int editor_hl_chars[] =
4330 {
4331   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
4332   EL_CHAR('T'),
4333   EL_CHAR('X'),
4334   EL_CHAR('T'),
4335 };
4336
4337 static int editor_el_chars[] =
4338 {
4339   EL_CHAR(' '),
4340   EL_CHAR('!'),
4341   EL_CHAR('"'),
4342   EL_CHAR('#'),
4343
4344   EL_CHAR('$'),
4345   EL_CHAR('%'),
4346   EL_CHAR('&'),
4347   EL_CHAR('\''),
4348
4349   EL_CHAR('('),
4350   EL_CHAR(')'),
4351   EL_CHAR('*'),
4352   EL_CHAR('+'),
4353
4354   EL_CHAR(','),
4355   EL_CHAR('-'),
4356   EL_CHAR('.'),
4357   EL_CHAR('/'),
4358
4359   EL_CHAR('0'),
4360   EL_CHAR('1'),
4361   EL_CHAR('2'),
4362   EL_CHAR('3'),
4363
4364   EL_CHAR('4'),
4365   EL_CHAR('5'),
4366   EL_CHAR('6'),
4367   EL_CHAR('7'),
4368
4369   EL_CHAR('8'),
4370   EL_CHAR('9'),
4371   EL_CHAR(':'),
4372   EL_CHAR(';'),
4373
4374   EL_CHAR('<'),
4375   EL_CHAR('='),
4376   EL_CHAR('>'),
4377   EL_CHAR('?'),
4378
4379   EL_CHAR('@'),
4380   EL_CHAR('A'),
4381   EL_CHAR('B'),
4382   EL_CHAR('C'),
4383
4384   EL_CHAR('D'),
4385   EL_CHAR('E'),
4386   EL_CHAR('F'),
4387   EL_CHAR('G'),
4388
4389   EL_CHAR('H'),
4390   EL_CHAR('I'),
4391   EL_CHAR('J'),
4392   EL_CHAR('K'),
4393
4394   EL_CHAR('L'),
4395   EL_CHAR('M'),
4396   EL_CHAR('N'),
4397   EL_CHAR('O'),
4398
4399   EL_CHAR('P'),
4400   EL_CHAR('Q'),
4401   EL_CHAR('R'),
4402   EL_CHAR('S'),
4403
4404   EL_CHAR('T'),
4405   EL_CHAR('U'),
4406   EL_CHAR('V'),
4407   EL_CHAR('W'),
4408
4409   EL_CHAR('X'),
4410   EL_CHAR('Y'),
4411   EL_CHAR('Z'),
4412   EL_CHAR('['),
4413
4414   EL_CHAR('\\'),
4415   EL_CHAR(']'),
4416   EL_CHAR('^'),
4417   EL_CHAR('_'),
4418
4419   EL_CHAR(CHAR_BYTE_COPYRIGHT),
4420   EL_CHAR(CHAR_BYTE_UMLAUT_A),
4421   EL_CHAR(CHAR_BYTE_UMLAUT_O),
4422   EL_CHAR(CHAR_BYTE_UMLAUT_U),
4423
4424   EL_CHAR(CHAR_BYTE_DEGREE),
4425   EL_CHAR(CHAR_BYTE_REGISTERED),
4426   EL_CHAR(FONT_ASCII_CURSOR),
4427   EL_CHAR(FONT_ASCII_BUTTON),
4428
4429   EL_CHAR(FONT_ASCII_UP),
4430   EL_CHAR(FONT_ASCII_DOWN),
4431   EL_CHAR(' '),
4432   EL_CHAR(' ')
4433 };
4434 static int *editor_hl_chars_ptr = editor_hl_chars;
4435 static int *editor_el_chars_ptr = editor_el_chars;
4436 static int num_editor_hl_chars = SIZEOF_ARRAY_INT(editor_hl_chars);
4437 static int num_editor_el_chars = SIZEOF_ARRAY_INT(editor_el_chars);
4438
4439 static int editor_hl_steel_chars[] =
4440 {
4441   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
4442   EL_STEEL_CHAR('T'),
4443   EL_STEEL_CHAR('X'),
4444   EL_STEEL_CHAR('T'),
4445 };
4446
4447 static int editor_el_steel_chars[] =
4448 {
4449   EL_STEEL_CHAR(' '),
4450   EL_STEEL_CHAR('!'),
4451   EL_STEEL_CHAR('"'),
4452   EL_STEEL_CHAR('#'),
4453
4454   EL_STEEL_CHAR('$'),
4455   EL_STEEL_CHAR('%'),
4456   EL_STEEL_CHAR('&'),
4457   EL_STEEL_CHAR('\''),
4458
4459   EL_STEEL_CHAR('('),
4460   EL_STEEL_CHAR(')'),
4461   EL_STEEL_CHAR('*'),
4462   EL_STEEL_CHAR('+'),
4463
4464   EL_STEEL_CHAR(','),
4465   EL_STEEL_CHAR('-'),
4466   EL_STEEL_CHAR('.'),
4467   EL_STEEL_CHAR('/'),
4468
4469   EL_STEEL_CHAR('0'),
4470   EL_STEEL_CHAR('1'),
4471   EL_STEEL_CHAR('2'),
4472   EL_STEEL_CHAR('3'),
4473
4474   EL_STEEL_CHAR('4'),
4475   EL_STEEL_CHAR('5'),
4476   EL_STEEL_CHAR('6'),
4477   EL_STEEL_CHAR('7'),
4478
4479   EL_STEEL_CHAR('8'),
4480   EL_STEEL_CHAR('9'),
4481   EL_STEEL_CHAR(':'),
4482   EL_STEEL_CHAR(';'),
4483
4484   EL_STEEL_CHAR('<'),
4485   EL_STEEL_CHAR('='),
4486   EL_STEEL_CHAR('>'),
4487   EL_STEEL_CHAR('?'),
4488
4489   EL_STEEL_CHAR('@'),
4490   EL_STEEL_CHAR('A'),
4491   EL_STEEL_CHAR('B'),
4492   EL_STEEL_CHAR('C'),
4493
4494   EL_STEEL_CHAR('D'),
4495   EL_STEEL_CHAR('E'),
4496   EL_STEEL_CHAR('F'),
4497   EL_STEEL_CHAR('G'),
4498
4499   EL_STEEL_CHAR('H'),
4500   EL_STEEL_CHAR('I'),
4501   EL_STEEL_CHAR('J'),
4502   EL_STEEL_CHAR('K'),
4503
4504   EL_STEEL_CHAR('L'),
4505   EL_STEEL_CHAR('M'),
4506   EL_STEEL_CHAR('N'),
4507   EL_STEEL_CHAR('O'),
4508
4509   EL_STEEL_CHAR('P'),
4510   EL_STEEL_CHAR('Q'),
4511   EL_STEEL_CHAR('R'),
4512   EL_STEEL_CHAR('S'),
4513
4514   EL_STEEL_CHAR('T'),
4515   EL_STEEL_CHAR('U'),
4516   EL_STEEL_CHAR('V'),
4517   EL_STEEL_CHAR('W'),
4518
4519   EL_STEEL_CHAR('X'),
4520   EL_STEEL_CHAR('Y'),
4521   EL_STEEL_CHAR('Z'),
4522   EL_STEEL_CHAR('['),
4523
4524   EL_STEEL_CHAR('\\'),
4525   EL_STEEL_CHAR(']'),
4526   EL_STEEL_CHAR('^'),
4527   EL_STEEL_CHAR('_'),
4528
4529   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
4530   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
4531   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
4532   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
4533
4534   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
4535   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
4536   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
4537   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
4538
4539   EL_STEEL_CHAR(FONT_ASCII_UP),
4540   EL_STEEL_CHAR(FONT_ASCII_DOWN),
4541   EL_STEEL_CHAR(' '),
4542   EL_STEEL_CHAR(' ')
4543 };
4544 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
4545 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
4546 static int num_editor_hl_steel_chars = SIZEOF_ARRAY_INT(editor_hl_steel_chars);
4547 static int num_editor_el_steel_chars = SIZEOF_ARRAY_INT(editor_el_steel_chars);
4548
4549 static int editor_hl_custom[] =
4550 {
4551   EL_INTERNAL_CASCADE_CE_ACTIVE,
4552   EL_CHAR('C'),
4553   EL_CHAR('E'),
4554   EL_EMPTY,
4555 };
4556
4557 static int editor_el_custom[] =
4558 {
4559   EL_CUSTOM_START + 0,
4560   EL_CUSTOM_START + 1,
4561   EL_CUSTOM_START + 2,
4562   EL_CUSTOM_START + 3,
4563
4564   EL_CUSTOM_START + 4,
4565   EL_CUSTOM_START + 5,
4566   EL_CUSTOM_START + 6,
4567   EL_CUSTOM_START + 7,
4568
4569   EL_CUSTOM_START + 8,
4570   EL_CUSTOM_START + 9,
4571   EL_CUSTOM_START + 10,
4572   EL_CUSTOM_START + 11,
4573
4574   EL_CUSTOM_START + 12,
4575   EL_CUSTOM_START + 13,
4576   EL_CUSTOM_START + 14,
4577   EL_CUSTOM_START + 15,
4578
4579   EL_CUSTOM_START + 16,
4580   EL_CUSTOM_START + 17,
4581   EL_CUSTOM_START + 18,
4582   EL_CUSTOM_START + 19,
4583
4584   EL_CUSTOM_START + 20,
4585   EL_CUSTOM_START + 21,
4586   EL_CUSTOM_START + 22,
4587   EL_CUSTOM_START + 23,
4588
4589   EL_CUSTOM_START + 24,
4590   EL_CUSTOM_START + 25,
4591   EL_CUSTOM_START + 26,
4592   EL_CUSTOM_START + 27,
4593
4594   EL_CUSTOM_START + 28,
4595   EL_CUSTOM_START + 29,
4596   EL_CUSTOM_START + 30,
4597   EL_CUSTOM_START + 31,
4598
4599   EL_CUSTOM_START + 32,
4600   EL_CUSTOM_START + 33,
4601   EL_CUSTOM_START + 34,
4602   EL_CUSTOM_START + 35,
4603
4604   EL_CUSTOM_START + 36,
4605   EL_CUSTOM_START + 37,
4606   EL_CUSTOM_START + 38,
4607   EL_CUSTOM_START + 39,
4608
4609   EL_CUSTOM_START + 40,
4610   EL_CUSTOM_START + 41,
4611   EL_CUSTOM_START + 42,
4612   EL_CUSTOM_START + 43,
4613
4614   EL_CUSTOM_START + 44,
4615   EL_CUSTOM_START + 45,
4616   EL_CUSTOM_START + 46,
4617   EL_CUSTOM_START + 47,
4618
4619   EL_CUSTOM_START + 48,
4620   EL_CUSTOM_START + 49,
4621   EL_CUSTOM_START + 50,
4622   EL_CUSTOM_START + 51,
4623
4624   EL_CUSTOM_START + 52,
4625   EL_CUSTOM_START + 53,
4626   EL_CUSTOM_START + 54,
4627   EL_CUSTOM_START + 55,
4628
4629   EL_CUSTOM_START + 56,
4630   EL_CUSTOM_START + 57,
4631   EL_CUSTOM_START + 58,
4632   EL_CUSTOM_START + 59,
4633
4634   EL_CUSTOM_START + 60,
4635   EL_CUSTOM_START + 61,
4636   EL_CUSTOM_START + 62,
4637   EL_CUSTOM_START + 63,
4638
4639   EL_CUSTOM_START + 64,
4640   EL_CUSTOM_START + 65,
4641   EL_CUSTOM_START + 66,
4642   EL_CUSTOM_START + 67,
4643
4644   EL_CUSTOM_START + 68,
4645   EL_CUSTOM_START + 69,
4646   EL_CUSTOM_START + 70,
4647   EL_CUSTOM_START + 71,
4648
4649   EL_CUSTOM_START + 72,
4650   EL_CUSTOM_START + 73,
4651   EL_CUSTOM_START + 74,
4652   EL_CUSTOM_START + 75,
4653
4654   EL_CUSTOM_START + 76,
4655   EL_CUSTOM_START + 77,
4656   EL_CUSTOM_START + 78,
4657   EL_CUSTOM_START + 79,
4658
4659   EL_CUSTOM_START + 80,
4660   EL_CUSTOM_START + 81,
4661   EL_CUSTOM_START + 82,
4662   EL_CUSTOM_START + 83,
4663
4664   EL_CUSTOM_START + 84,
4665   EL_CUSTOM_START + 85,
4666   EL_CUSTOM_START + 86,
4667   EL_CUSTOM_START + 87,
4668
4669   EL_CUSTOM_START + 88,
4670   EL_CUSTOM_START + 89,
4671   EL_CUSTOM_START + 90,
4672   EL_CUSTOM_START + 91,
4673
4674   EL_CUSTOM_START + 92,
4675   EL_CUSTOM_START + 93,
4676   EL_CUSTOM_START + 94,
4677   EL_CUSTOM_START + 95,
4678
4679   EL_CUSTOM_START + 96,
4680   EL_CUSTOM_START + 97,
4681   EL_CUSTOM_START + 98,
4682   EL_CUSTOM_START + 99,
4683
4684   EL_CUSTOM_START + 100,
4685   EL_CUSTOM_START + 101,
4686   EL_CUSTOM_START + 102,
4687   EL_CUSTOM_START + 103,
4688
4689   EL_CUSTOM_START + 104,
4690   EL_CUSTOM_START + 105,
4691   EL_CUSTOM_START + 106,
4692   EL_CUSTOM_START + 107,
4693
4694   EL_CUSTOM_START + 108,
4695   EL_CUSTOM_START + 109,
4696   EL_CUSTOM_START + 110,
4697   EL_CUSTOM_START + 111,
4698
4699   EL_CUSTOM_START + 112,
4700   EL_CUSTOM_START + 113,
4701   EL_CUSTOM_START + 114,
4702   EL_CUSTOM_START + 115,
4703
4704   EL_CUSTOM_START + 116,
4705   EL_CUSTOM_START + 117,
4706   EL_CUSTOM_START + 118,
4707   EL_CUSTOM_START + 119,
4708
4709   EL_CUSTOM_START + 120,
4710   EL_CUSTOM_START + 121,
4711   EL_CUSTOM_START + 122,
4712   EL_CUSTOM_START + 123,
4713
4714   EL_CUSTOM_START + 124,
4715   EL_CUSTOM_START + 125,
4716   EL_CUSTOM_START + 126,
4717   EL_CUSTOM_START + 127,
4718
4719   EL_CUSTOM_START + 128,
4720   EL_CUSTOM_START + 129,
4721   EL_CUSTOM_START + 130,
4722   EL_CUSTOM_START + 131,
4723
4724   EL_CUSTOM_START + 132,
4725   EL_CUSTOM_START + 133,
4726   EL_CUSTOM_START + 134,
4727   EL_CUSTOM_START + 135,
4728
4729   EL_CUSTOM_START + 136,
4730   EL_CUSTOM_START + 137,
4731   EL_CUSTOM_START + 138,
4732   EL_CUSTOM_START + 139,
4733
4734   EL_CUSTOM_START + 140,
4735   EL_CUSTOM_START + 141,
4736   EL_CUSTOM_START + 142,
4737   EL_CUSTOM_START + 143,
4738
4739   EL_CUSTOM_START + 144,
4740   EL_CUSTOM_START + 145,
4741   EL_CUSTOM_START + 146,
4742   EL_CUSTOM_START + 147,
4743
4744   EL_CUSTOM_START + 148,
4745   EL_CUSTOM_START + 149,
4746   EL_CUSTOM_START + 150,
4747   EL_CUSTOM_START + 151,
4748
4749   EL_CUSTOM_START + 152,
4750   EL_CUSTOM_START + 153,
4751   EL_CUSTOM_START + 154,
4752   EL_CUSTOM_START + 155,
4753
4754   EL_CUSTOM_START + 156,
4755   EL_CUSTOM_START + 157,
4756   EL_CUSTOM_START + 158,
4757   EL_CUSTOM_START + 159,
4758
4759   EL_CUSTOM_START + 160,
4760   EL_CUSTOM_START + 161,
4761   EL_CUSTOM_START + 162,
4762   EL_CUSTOM_START + 163,
4763
4764   EL_CUSTOM_START + 164,
4765   EL_CUSTOM_START + 165,
4766   EL_CUSTOM_START + 166,
4767   EL_CUSTOM_START + 167,
4768
4769   EL_CUSTOM_START + 168,
4770   EL_CUSTOM_START + 169,
4771   EL_CUSTOM_START + 170,
4772   EL_CUSTOM_START + 171,
4773
4774   EL_CUSTOM_START + 172,
4775   EL_CUSTOM_START + 173,
4776   EL_CUSTOM_START + 174,
4777   EL_CUSTOM_START + 175,
4778
4779   EL_CUSTOM_START + 176,
4780   EL_CUSTOM_START + 177,
4781   EL_CUSTOM_START + 178,
4782   EL_CUSTOM_START + 179,
4783
4784   EL_CUSTOM_START + 180,
4785   EL_CUSTOM_START + 181,
4786   EL_CUSTOM_START + 182,
4787   EL_CUSTOM_START + 183,
4788
4789   EL_CUSTOM_START + 184,
4790   EL_CUSTOM_START + 185,
4791   EL_CUSTOM_START + 186,
4792   EL_CUSTOM_START + 187,
4793
4794   EL_CUSTOM_START + 188,
4795   EL_CUSTOM_START + 189,
4796   EL_CUSTOM_START + 190,
4797   EL_CUSTOM_START + 191,
4798
4799   EL_CUSTOM_START + 192,
4800   EL_CUSTOM_START + 193,
4801   EL_CUSTOM_START + 194,
4802   EL_CUSTOM_START + 195,
4803
4804   EL_CUSTOM_START + 196,
4805   EL_CUSTOM_START + 197,
4806   EL_CUSTOM_START + 198,
4807   EL_CUSTOM_START + 199,
4808
4809   EL_CUSTOM_START + 200,
4810   EL_CUSTOM_START + 201,
4811   EL_CUSTOM_START + 202,
4812   EL_CUSTOM_START + 203,
4813
4814   EL_CUSTOM_START + 204,
4815   EL_CUSTOM_START + 205,
4816   EL_CUSTOM_START + 206,
4817   EL_CUSTOM_START + 207,
4818
4819   EL_CUSTOM_START + 208,
4820   EL_CUSTOM_START + 209,
4821   EL_CUSTOM_START + 210,
4822   EL_CUSTOM_START + 211,
4823
4824   EL_CUSTOM_START + 212,
4825   EL_CUSTOM_START + 213,
4826   EL_CUSTOM_START + 214,
4827   EL_CUSTOM_START + 215,
4828
4829   EL_CUSTOM_START + 216,
4830   EL_CUSTOM_START + 217,
4831   EL_CUSTOM_START + 218,
4832   EL_CUSTOM_START + 219,
4833
4834   EL_CUSTOM_START + 220,
4835   EL_CUSTOM_START + 221,
4836   EL_CUSTOM_START + 222,
4837   EL_CUSTOM_START + 223,
4838
4839   EL_CUSTOM_START + 224,
4840   EL_CUSTOM_START + 225,
4841   EL_CUSTOM_START + 226,
4842   EL_CUSTOM_START + 227,
4843
4844   EL_CUSTOM_START + 228,
4845   EL_CUSTOM_START + 229,
4846   EL_CUSTOM_START + 230,
4847   EL_CUSTOM_START + 231,
4848
4849   EL_CUSTOM_START + 232,
4850   EL_CUSTOM_START + 233,
4851   EL_CUSTOM_START + 234,
4852   EL_CUSTOM_START + 235,
4853
4854   EL_CUSTOM_START + 236,
4855   EL_CUSTOM_START + 237,
4856   EL_CUSTOM_START + 238,
4857   EL_CUSTOM_START + 239,
4858
4859   EL_CUSTOM_START + 240,
4860   EL_CUSTOM_START + 241,
4861   EL_CUSTOM_START + 242,
4862   EL_CUSTOM_START + 243,
4863
4864   EL_CUSTOM_START + 244,
4865   EL_CUSTOM_START + 245,
4866   EL_CUSTOM_START + 246,
4867   EL_CUSTOM_START + 247,
4868
4869   EL_CUSTOM_START + 248,
4870   EL_CUSTOM_START + 249,
4871   EL_CUSTOM_START + 250,
4872   EL_CUSTOM_START + 251,
4873
4874   EL_CUSTOM_START + 252,
4875   EL_CUSTOM_START + 253,
4876   EL_CUSTOM_START + 254,
4877   EL_CUSTOM_START + 255
4878 };
4879 static int *editor_hl_custom_ptr = editor_hl_custom;
4880 static int *editor_el_custom_ptr = editor_el_custom;
4881 static int num_editor_hl_custom = SIZEOF_ARRAY_INT(editor_hl_custom);
4882 static int num_editor_el_custom = SIZEOF_ARRAY_INT(editor_el_custom);
4883
4884 static int editor_hl_group[] =
4885 {
4886   EL_INTERNAL_CASCADE_GE_ACTIVE,
4887   EL_CHAR('G'),
4888   EL_CHAR('E'),
4889   EL_EMPTY,
4890 };
4891
4892 static int editor_el_group[] =
4893 {
4894   EL_GROUP_START + 0,
4895   EL_GROUP_START + 1,
4896   EL_GROUP_START + 2,
4897   EL_GROUP_START + 3,
4898
4899   EL_GROUP_START + 4,
4900   EL_GROUP_START + 5,
4901   EL_GROUP_START + 6,
4902   EL_GROUP_START + 7,
4903
4904   EL_GROUP_START + 8,
4905   EL_GROUP_START + 9,
4906   EL_GROUP_START + 10,
4907   EL_GROUP_START + 11,
4908
4909   EL_GROUP_START + 12,
4910   EL_GROUP_START + 13,
4911   EL_GROUP_START + 14,
4912   EL_GROUP_START + 15,
4913
4914   EL_GROUP_START + 16,
4915   EL_GROUP_START + 17,
4916   EL_GROUP_START + 18,
4917   EL_GROUP_START + 19,
4918
4919   EL_GROUP_START + 20,
4920   EL_GROUP_START + 21,
4921   EL_GROUP_START + 22,
4922   EL_GROUP_START + 23,
4923
4924   EL_GROUP_START + 24,
4925   EL_GROUP_START + 25,
4926   EL_GROUP_START + 26,
4927   EL_GROUP_START + 27,
4928
4929   EL_GROUP_START + 28,
4930   EL_GROUP_START + 29,
4931   EL_GROUP_START + 30,
4932   EL_GROUP_START + 31
4933 };
4934 static int *editor_hl_group_ptr = editor_hl_group;
4935 static int *editor_el_group_ptr = editor_el_group;
4936 static int num_editor_hl_group = SIZEOF_ARRAY_INT(editor_hl_group);
4937 static int num_editor_el_group = SIZEOF_ARRAY_INT(editor_el_group);
4938
4939 static int editor_hl_reference[] =
4940 {
4941   EL_INTERNAL_CASCADE_REF_ACTIVE,
4942   EL_CHAR('R'),
4943   EL_CHAR('E'),
4944   EL_CHAR('F')
4945 };
4946
4947 static int editor_el_reference[] =
4948 {
4949   EL_TRIGGER_PLAYER,
4950   EL_TRIGGER_ELEMENT,
4951   EL_TRIGGER_CE_VALUE,
4952   EL_TRIGGER_CE_SCORE,
4953
4954   EL_SELF,
4955   EL_ANY_ELEMENT,
4956   EL_CURRENT_CE_VALUE,
4957   EL_CURRENT_CE_SCORE,
4958
4959   EL_PREV_CE_8,
4960   EL_PREV_CE_7,
4961   EL_PREV_CE_6,
4962   EL_PREV_CE_5,
4963
4964   EL_PREV_CE_4,
4965   EL_PREV_CE_3,
4966   EL_PREV_CE_2,
4967   EL_PREV_CE_1,
4968
4969   EL_NEXT_CE_1,
4970   EL_NEXT_CE_2,
4971   EL_NEXT_CE_3,
4972   EL_NEXT_CE_4,
4973
4974   EL_NEXT_CE_5,
4975   EL_NEXT_CE_6,
4976   EL_NEXT_CE_7,
4977   EL_NEXT_CE_8,
4978 };
4979 static int *editor_hl_reference_ptr = editor_hl_reference;
4980 static int *editor_el_reference_ptr = editor_el_reference;
4981 static int num_editor_hl_reference = SIZEOF_ARRAY_INT(editor_hl_reference);
4982 static int num_editor_el_reference = SIZEOF_ARRAY_INT(editor_el_reference);
4983
4984 static int editor_hl_user_defined[] =
4985 {
4986   EL_INTERNAL_CASCADE_USER_ACTIVE,
4987   EL_CHAR('M'),
4988   EL_CHAR('Y'),
4989   EL_EMPTY,
4990 };
4991
4992 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
4993 static int *editor_el_user_defined_ptr = NULL;
4994 static int num_editor_hl_user_defined=SIZEOF_ARRAY_INT(editor_hl_user_defined);
4995 static int num_editor_el_user_defined = 0;
4996
4997 static int editor_hl_dynamic[] =
4998 {
4999   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
5000   EL_CHAR('U'),
5001   EL_CHAR('S'),
5002   EL_CHAR('E'),
5003 };
5004
5005 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
5006 static int *editor_el_dynamic_ptr = NULL;
5007 static int num_editor_hl_dynamic = SIZEOF_ARRAY_INT(editor_hl_dynamic);
5008 static int num_editor_el_dynamic = 0;
5009
5010 static int editor_hl_empty[] = { EL_EMPTY };
5011 static int *editor_el_empty = NULL;     /* dynamically allocated */
5012
5013 static int *editor_hl_empty_ptr = editor_hl_empty;
5014 static int *editor_el_empty_ptr = NULL;
5015 static int num_editor_hl_empty = 0;
5016 static int num_editor_el_empty = 0;     /* dynamically determined, if needed */
5017
5018 static boolean use_el_empty = FALSE;
5019
5020 static int *editor_elements = NULL;     /* dynamically allocated */
5021 static int num_editor_elements = 0;     /* dynamically determined */
5022
5023 static boolean setup_editor_cascade_never = FALSE;
5024
5025 static int editor_hl_unused[] = { EL_EMPTY };
5026 static int *editor_hl_unused_ptr = editor_hl_unused;
5027 static int num_editor_hl_unused = 0;
5028
5029 static struct
5030 {
5031   boolean *setup_value;
5032   boolean *setup_cascade_value;
5033
5034   int **headline_list;
5035   int *headline_list_size;
5036
5037   int **element_list;
5038   int *element_list_size;
5039
5040   boolean last_setup_value;
5041 }
5042 editor_elements_info[] =
5043 {
5044   {
5045     &setup.editor.el_classic,
5046     &setup_editor_cascade_never,
5047     &editor_hl_unused_ptr,              &num_editor_hl_unused,
5048     &editor_el_players_ptr,             &num_editor_el_players
5049   },
5050   {
5051     &setup.editor.el_classic,
5052     &setup.editor_cascade.el_bd,
5053     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
5054     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
5055   },
5056   {
5057     &setup.editor.el_classic,
5058     &setup.editor_cascade.el_em,
5059     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
5060     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
5061   },
5062   {
5063     &setup.editor.el_classic,
5064     &setup.editor_cascade.el_emc,
5065     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
5066     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
5067   },
5068   {
5069     &setup.editor.el_classic,
5070     &setup.editor_cascade.el_rnd,
5071     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
5072     &editor_el_rnd_ptr,                 &num_editor_el_rnd
5073   },
5074   {
5075     &setup.editor.el_classic,
5076     &setup.editor_cascade.el_sb,
5077     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
5078     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
5079   },
5080   {
5081     &setup.editor.el_classic,
5082     &setup.editor_cascade.el_sp,
5083     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
5084     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
5085   },
5086   {
5087     &setup.editor.el_classic,
5088     &setup.editor_cascade.el_dc,
5089     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
5090     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
5091   },
5092   {
5093     &setup.editor.el_classic,
5094     &setup.editor_cascade.el_dx,
5095     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
5096     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
5097   },
5098   {
5099     &setup.editor.el_classic,
5100     &setup.editor_cascade.el_mm,
5101     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
5102     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
5103   },
5104   {
5105     &setup.editor.el_classic,
5106     &setup.editor_cascade.el_df,
5107     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
5108     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
5109   },
5110   {
5111     &setup.editor.el_classic,
5112     &setup.editor_cascade.el_chars,
5113     &editor_hl_chars_ptr,               &num_editor_hl_chars,
5114     &editor_el_chars_ptr,               &num_editor_el_chars
5115   },
5116   {
5117     &setup.editor.el_classic,
5118     &setup.editor_cascade.el_steel_chars,
5119     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
5120     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
5121   },
5122   {
5123     &setup.editor.el_custom,
5124     &setup.editor_cascade.el_ce,
5125     &editor_hl_custom_ptr,              &num_editor_hl_custom,
5126     &editor_el_custom_ptr,              &num_editor_el_custom
5127   },
5128   {
5129     &setup.editor.el_custom,
5130     &setup.editor_cascade.el_ge,
5131     &editor_hl_group_ptr,               &num_editor_hl_group,
5132     &editor_el_group_ptr,               &num_editor_el_group
5133   },
5134   {
5135     &setup.editor.el_custom,
5136     &setup.editor_cascade.el_ref,
5137     &editor_hl_reference_ptr,           &num_editor_hl_reference,
5138     &editor_el_reference_ptr,           &num_editor_el_reference
5139   },
5140   {
5141     &setup.editor.el_user_defined,
5142     &setup.editor_cascade.el_user,
5143     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
5144     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
5145   },
5146   {
5147     &setup.editor.el_dynamic,
5148     &setup.editor_cascade.el_dynamic,
5149     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
5150     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
5151   },
5152   {
5153     &use_el_empty,
5154     &use_el_empty,
5155     &editor_hl_empty_ptr,               &num_editor_hl_empty,
5156     &editor_el_empty_ptr,               &num_editor_el_empty,
5157   },
5158   {
5159     NULL,
5160     NULL,
5161     NULL,                               NULL,
5162     NULL,                               NULL
5163   }
5164 };
5165
5166
5167 /*
5168   -----------------------------------------------------------------------------
5169   functions
5170   -----------------------------------------------------------------------------
5171 */
5172
5173 static int getMaxInfoTextLength()
5174 {
5175   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
5176 }
5177
5178 static int getTextWidthForGadget(char *text)
5179 {
5180   if (text == NULL)
5181     return 0;
5182
5183   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
5184 }
5185
5186 static int getTextWidthForDrawingArea(char *text)
5187 {
5188   if (text == NULL)
5189     return 0;
5190
5191   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_TEXT_DISTANCE);
5192 }
5193
5194 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
5195 {
5196   return (gi->x + gi->width + getTextWidthForGadget(text));
5197 }
5198
5199 static char *getElementInfoText(int element)
5200 {
5201   char *info_text = NULL;
5202
5203   if (element < MAX_NUM_ELEMENTS)
5204   {
5205     if (strlen(element_info[element].description) > 0)
5206       info_text = element_info[element].description;
5207     else if (element_info[element].custom_description != NULL)
5208       info_text = element_info[element].custom_description;
5209     else if (element_info[element].editor_description != NULL)
5210       info_text = element_info[element].editor_description;
5211   }
5212
5213   if (info_text == NULL)
5214     info_text = INFOTEXT_UNKNOWN_ELEMENT;
5215
5216   return info_text;
5217 }
5218
5219 static char *getElementDescriptionFilenameExt(char *basename)
5220 {
5221   char *elements_subdir = "elements";
5222   static char *elements_subdir2 = NULL;
5223   static char *filename = NULL;
5224
5225   if (elements_subdir2 == NULL)
5226     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
5227
5228   checked_free(filename);
5229
5230   /* 1st try: look for element description in current level set directory */
5231   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
5232   if (fileExists(filename))
5233     return filename;
5234
5235   free(filename);
5236
5237   /* 2nd try: look for element description in the game's base directory */
5238   filename = getPath3(options.docs_directory, elements_subdir, basename);
5239   if (fileExists(filename))
5240     return filename;
5241
5242   return NULL;
5243 }
5244
5245 char *getElementDescriptionFilename(int element)
5246 {
5247   char basename[MAX_FILENAME_LEN];
5248   char *filename;
5249
5250   /* 1st try: look for element description file for exactly this element */
5251   sprintf(basename, "%s.txt", element_info[element].token_name);
5252   filename = getElementDescriptionFilenameExt(basename);
5253   if (filename != NULL)
5254     return filename;
5255
5256   /* 2nd try: look for element description file for this element's class */
5257   sprintf(basename, "%s.txt", element_info[element].class_name);
5258   filename = getElementDescriptionFilenameExt(basename);
5259   if (filename != NULL)
5260     return filename;
5261
5262   return NULL;
5263 }
5264
5265 static void InitDynamicEditorElementList(int **elements, int *num_elements)
5266 {
5267   boolean element_found[NUM_FILE_ELEMENTS];
5268   int i, x, y;
5269
5270   /* initialize list of used elements to "not used" */
5271   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5272     element_found[i] = FALSE;
5273
5274   /* find all elements used in current level */
5275   for (y = 0; y < lev_fieldy; y++)
5276     for (x = 0; x < lev_fieldx; x++)
5277       if (Feld[x][y] < NUM_FILE_ELEMENTS)       /* should always be true */
5278         element_found[Feld[x][y]] = TRUE;
5279
5280   *num_elements = 0;
5281
5282   /* count number of elements used in current level */
5283   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5284     if (element_found[i])
5285       (*num_elements)++;
5286
5287   /* add space for up to 3 more elements for padding that may be needed */
5288   *num_elements += 3;
5289
5290   /* free memory for old list of elements, if needed */
5291   checked_free(*elements);
5292
5293   /* allocate memory for new list of elements */
5294   *elements = checked_malloc(*num_elements * sizeof(int));
5295
5296   *num_elements = 0;
5297
5298   /* add all elements used in current level (non-custom/group elements) */
5299   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5300     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) || IS_GROUP_ELEMENT(i)))
5301       (*elements)[(*num_elements)++] = i;
5302
5303   /* add all elements used in current level (custom/group elements) */
5304   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5305     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) || IS_GROUP_ELEMENT(i)))
5306       (*elements)[(*num_elements)++] = i;
5307
5308   while (*num_elements % 4)     /* pad with empty elements, if needed */
5309     (*elements)[(*num_elements)++] = EL_EMPTY;
5310 }
5311
5312 static void ReinitializeElementList()
5313 {
5314   static boolean initialization_needed = TRUE;
5315   int pos = 0;
5316   int i, j;
5317
5318   if (initialization_needed)
5319   {
5320     LoadSetup_EditorCascade();          /* load last editor cascade state */
5321
5322     /* initialize editor cascade element from saved cascade state */
5323     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5324     {
5325       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
5326       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
5327
5328       if (IS_EDITOR_CASCADE(*cascade_element))
5329         *cascade_element =
5330           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
5331            EL_CASCADE_INACTIVE(*cascade_element));
5332     }
5333
5334     initialization_needed = FALSE;
5335   }
5336
5337   checked_free(editor_elements);
5338
5339   /* reload optional user defined element list for each invocation of editor */
5340   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
5341                                    &num_editor_el_user_defined);
5342
5343   /* initialize dynamic level element list for each invocation of editor */
5344   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
5345                                &num_editor_el_dynamic);
5346
5347   /* initialize list of empty elements (used for padding, if needed) */
5348   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
5349     editor_el_empty[i] = EL_EMPTY;
5350
5351   /* do some sanity checks for each element from element list */
5352   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5353   {
5354     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
5355     {
5356       int element = (*editor_elements_info[i].element_list)[j];
5357
5358       if (element >= NUM_FILE_ELEMENTS)
5359         Error(ERR_WARN, "editor element %d is runtime element", element);
5360
5361       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
5362         Error(ERR_WARN, "no element description text for element %d", element);
5363     }
5364   }
5365
5366   num_editor_elements = 0;
5367   use_el_empty = FALSE;
5368
5369   /* determine size of element list */
5370   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5371   {
5372     boolean found_inactive_cascade = FALSE;
5373
5374     if (*editor_elements_info[i].setup_value)
5375     {
5376       if (setup.editor.el_headlines)
5377       {
5378         // required for correct padding of palette headline buttons
5379         if (*editor_elements_info[i].headline_list_size > 0)
5380           num_editor_elements += editor.palette.cols;
5381
5382         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
5383         {
5384           int element = (*editor_elements_info[i].headline_list)[j];
5385
5386           if (IS_EDITOR_CASCADE_INACTIVE(element))
5387             found_inactive_cascade = TRUE;
5388         }
5389       }
5390
5391       if (found_inactive_cascade)
5392         continue;
5393
5394       // required for correct padding of palette element buttons
5395       int element_list_size = *editor_elements_info[i].element_list_size;
5396       int element_rows =
5397         (element_list_size + editor.palette.cols - 1) / editor.palette.cols;
5398       int element_buttons = editor.palette.cols * element_rows;
5399
5400       num_editor_elements += element_buttons;
5401     }
5402   }
5403
5404   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
5405   {
5406     /* offer at least as many elements as element buttons exist */
5407     use_el_empty = TRUE;
5408     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
5409
5410     num_editor_elements += num_editor_el_empty;
5411   }
5412
5413   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
5414
5415   /* fill element list */
5416   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5417   {
5418     boolean found_inactive_cascade = FALSE;
5419
5420     if (*editor_elements_info[i].setup_value)
5421     {
5422       if (setup.editor.el_headlines)
5423       {
5424         // required for correct padding of palette headline buttons
5425         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
5426                              editor.palette.cols : 0);
5427
5428         for (j = 0; j < headline_size; j++)
5429         {
5430           // use empty elements for padding of palette headline buttons
5431           int element = (j < *editor_elements_info[i].headline_list_size ?
5432                          (*editor_elements_info[i].headline_list)[j] :
5433                          editor_el_empty[0]);
5434
5435           editor_elements[pos++] = element;
5436
5437           if (IS_EDITOR_CASCADE_INACTIVE(element))
5438             found_inactive_cascade = TRUE;
5439         }
5440       }
5441
5442       if (found_inactive_cascade)
5443         continue;
5444
5445       // required for correct padding of palette element buttons
5446       int element_list_size = *editor_elements_info[i].element_list_size;
5447       int element_rows =
5448         (element_list_size + editor.palette.cols - 1) / editor.palette.cols;
5449       int element_buttons = editor.palette.cols * element_rows;
5450
5451       // copy all elements from element list
5452       for (j = 0; j < element_list_size; j++)
5453         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
5454
5455       // use empty elements for padding of palette element buttons
5456       for (j = 0; j < element_buttons - element_list_size; j++)
5457         editor_elements[pos++] = editor_el_empty[0];
5458     }
5459   }
5460
5461   /* (this function is also called before editor gadgets are initialized!) */
5462   AdjustElementListScrollbar();
5463 }
5464
5465 void PrintEditorElementList()
5466 {
5467   boolean *stop = &setup.editor.el_user_defined;
5468   int i, j;
5469
5470   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
5471   {
5472     int cascade_element = (*editor_elements_info[i].headline_list)[0];
5473
5474     if (IS_EDITOR_CASCADE(cascade_element))
5475     {
5476       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
5477       char *headline = element_info[cascade_element_show].editor_description;
5478
5479       PrintLineWithPrefix("# ", "-", 77);
5480       Print("# %s\n", headline);
5481       PrintLineWithPrefix("# ", "-", 77);
5482     }
5483
5484     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
5485     {
5486       int element = (*editor_elements_info[i].headline_list)[j];
5487
5488       if (IS_EDITOR_CASCADE(element))
5489         element = EL_CHAR_MINUS;
5490
5491       Print("# %s\n", element_info[element].token_name);
5492     }
5493
5494     if (j > 0)
5495       Print("#\n");
5496
5497     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
5498     {
5499       int element = (*editor_elements_info[i].element_list)[j];
5500
5501       Print("# %s\n", element_info[element].token_name);
5502     }
5503
5504     if (j > 0)
5505       Print("#\n");
5506   }
5507 }
5508
5509 static void ReinitializeElementListButtons()
5510 {
5511   static boolean last_setup_value_headlines = FALSE;
5512   static boolean initialization_needed = TRUE;
5513   int i;
5514
5515   if (!initialization_needed)   /* check if editor element setup has changed */
5516   {
5517     if (last_setup_value_headlines != setup.editor.el_headlines)
5518       initialization_needed = TRUE;
5519
5520     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5521       if (editor_elements_info[i].last_setup_value !=
5522           *editor_elements_info[i].setup_value)
5523         initialization_needed = TRUE;
5524   }
5525
5526   if (!initialization_needed)
5527     return;
5528
5529   FreeLevelEditorGadgets();
5530   CreateLevelEditorGadgets();
5531
5532   /* store current setup values for next invocation of this function */
5533   last_setup_value_headlines = setup.editor.el_headlines;
5534   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5535     editor_elements_info[i].last_setup_value =
5536       *editor_elements_info[i].setup_value;
5537
5538   initialization_needed = FALSE;
5539 }
5540
5541 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
5542                               boolean input)
5543 {
5544   int border_graphic =
5545     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
5546   struct GraphicInfo *g = &graphic_info[border_graphic];
5547   Bitmap *src_bitmap = g->bitmap;
5548   int src_x = g->src_x;
5549   int src_y = g->src_y;
5550   int border_size = g->border_size;
5551   int border_xpos = g->width  - border_size;
5552   int border_ypos = g->height - border_size;
5553   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
5554   int i;
5555
5556   BlitBitmap(src_bitmap, drawto, src_x, src_y,
5557              border_size, border_size,
5558              dest_x - border_size, dest_y - border_size);
5559   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
5560              border_size, border_size,
5561              dest_x + width, dest_y - border_size);
5562   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
5563              border_size, border_size,
5564              dest_x - border_size, dest_y + height);
5565   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
5566              border_size, border_size,
5567              dest_x + width, dest_y + height);
5568
5569   for (i = 0; i < width / tilesize; i++)
5570   {
5571     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
5572                tilesize, border_size,
5573                dest_x + i * tilesize, dest_y - border_size);
5574     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
5575                tilesize, border_size,
5576                dest_x + i * tilesize, dest_y + height);
5577   }
5578
5579   for (i = 0; i < height / tilesize; i++)
5580   {
5581     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
5582                border_size, tilesize,
5583                dest_x - border_size, dest_y + i * tilesize);
5584     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
5585                border_size, tilesize,
5586                dest_x + width, dest_y + i * tilesize);
5587   }
5588
5589   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
5590 }
5591
5592 static void DrawEditorElement(int x, int y, int element)
5593 {
5594   DrawSizedElement(x, y, element, ed_tilesize);
5595 }
5596
5597 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
5598 {
5599   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
5600 }
5601
5602 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
5603 {
5604   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
5605 }
5606
5607 static void DrawDrawingArea(int id)
5608 {
5609   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
5610   int x, y;
5611
5612   int *value = drawingarea_info[id].value;
5613   int area_xsize = drawingarea_info[id].area_xsize;
5614   int area_ysize = drawingarea_info[id].area_ysize;
5615   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
5616
5617   for (x = 0; x < area_xsize; x++)
5618     for (y = 0; y < area_ysize; y++)
5619       DrawSizedGraphicExt(drawto,
5620                           gi->x + x * tilesize,
5621                           gi->y + y * tilesize,
5622                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
5623 }
5624
5625 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
5626 {
5627   int x, y;
5628   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
5629   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
5630
5631   BlitBitmap(drawto, drawto,
5632              SX + (dx == -1 ? ed_tilesize : 0),
5633              SY + (dy == -1 ? ed_tilesize : 0),
5634              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
5635              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
5636              SX + (dx == +1 ? ed_tilesize : 0),
5637              SY + (dy == +1 ? ed_tilesize : 0));
5638
5639   if (dx)
5640   {
5641     x = (dx == 1 ? 0 : ed_fieldx - 1);
5642     for (y = 0; y < ed_fieldy; y++)
5643       DrawEditorElementOrWall(x, y, from_x, from_y);
5644   }
5645   else if (dy)
5646   {
5647     y = (dy == 1 ? 0 : ed_fieldy - 1);
5648     for (x = 0; x < ed_fieldx; x++)
5649       DrawEditorElementOrWall(x, y, from_x, from_y);
5650   }
5651
5652   redraw_mask |= REDRAW_FIELD;
5653   BackToFront();
5654 }
5655
5656 void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
5657                             int *x, int *y)
5658 {
5659   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
5660 }
5661
5662 static void CreateControlButtons()
5663 {
5664   struct GadgetInfo *gi;
5665   int i;
5666
5667   /* create toolbox buttons */
5668   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
5669   {
5670     int id = controlbutton_info[i].gadget_id;
5671     int type = controlbutton_info[i].gadget_type;
5672     int graphic = controlbutton_info[i].graphic;
5673     struct XYTileSize *pos = controlbutton_info[i].pos;
5674     struct GraphicInfo *gd = &graphic_info[graphic];
5675     Bitmap *deco_bitmap = NULL;
5676     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
5677     int tile_size = 0, deco_shift = 0;
5678     boolean deco_masked = FALSE;
5679     int gd_x1 = gd->src_x;
5680     int gd_y1 = gd->src_y;
5681     int gd_x2 = gd->src_x + gd->pressed_xoffset;
5682     int gd_y2 = gd->src_y + gd->pressed_yoffset;
5683     int gd_x1a = gd->src_x + gd->active_xoffset;
5684     int gd_y1a = gd->src_y + gd->active_yoffset;
5685     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
5686     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
5687     int x = pos->x;
5688     int y = pos->y;
5689     unsigned int event_mask;
5690     int radio_button_nr = RADIO_NR_NONE;
5691     boolean checked = FALSE;
5692
5693     if (type == GD_TYPE_RADIO_BUTTON)
5694     {
5695       event_mask = GD_EVENT_PRESSED;
5696       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
5697
5698       if (id == drawing_function)
5699         checked = TRUE;
5700     }
5701     else
5702     {
5703       if (id == GADGET_ID_WRAP_LEFT ||
5704           id == GADGET_ID_WRAP_RIGHT ||
5705           id == GADGET_ID_WRAP_UP ||
5706           id == GADGET_ID_WRAP_DOWN)
5707         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
5708       else
5709         event_mask = GD_EVENT_RELEASED;
5710     }
5711
5712     if (id == GADGET_ID_PROPERTIES ||
5713         id == GADGET_ID_PALETTE)
5714     {
5715       x += DX;
5716       y += DY;
5717     }
5718     else if (id == GADGET_ID_ELEMENT_LEFT ||
5719              id == GADGET_ID_ELEMENT_MIDDLE ||
5720              id == GADGET_ID_ELEMENT_RIGHT)
5721     {
5722       x += DX;
5723       y += DY;
5724
5725       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
5726                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
5727                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
5728
5729       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
5730                                    editor.button.element_left.tile_size :
5731                                    id == GADGET_ID_ELEMENT_MIDDLE ?
5732                                    editor.button.element_middle.tile_size :
5733                                    id == GADGET_ID_ELEMENT_RIGHT ?
5734                                    editor.button.element_right.tile_size : 0);
5735
5736       // make sure that decoration does not overlap gadget border
5737       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
5738
5739       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
5740
5741       deco_xpos = (gd->width  - tile_size) / 2;
5742       deco_ypos = (gd->height - tile_size) / 2;
5743       deco_shift = 1;
5744       deco_masked = gd->draw_masked;
5745     }
5746     else
5747     {
5748       x += EX;
5749       y += EY;
5750     }
5751
5752     gi = CreateGadget(GDI_CUSTOM_ID, id,
5753                       GDI_CUSTOM_TYPE_ID, i,
5754                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
5755                       GDI_X, x,
5756                       GDI_Y, y,
5757                       GDI_WIDTH, gd->width,
5758                       GDI_HEIGHT, gd->height,
5759                       GDI_TYPE, type,
5760                       GDI_STATE, GD_BUTTON_UNPRESSED,
5761                       GDI_RADIO_NR, radio_button_nr,
5762                       GDI_CHECKED, checked,
5763                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
5764                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
5765                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
5766                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
5767                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
5768                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
5769                       GDI_DECORATION_SIZE, tile_size, tile_size,
5770                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
5771                       GDI_DECORATION_MASKED, deco_masked,
5772                       GDI_EVENT_MASK, event_mask,
5773                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5774                       GDI_CALLBACK_ACTION, HandleControlButtons,
5775                       GDI_END);
5776
5777     if (gi == NULL)
5778       Error(ERR_EXIT, "cannot create gadget");
5779
5780     level_editor_gadget[id] = gi;
5781   }
5782
5783   /* these values are not constant, but can change at runtime */
5784   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
5785   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
5786   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
5787   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
5788   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
5789   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
5790   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
5791   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
5792   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
5793   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
5794   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
5795   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
5796
5797   /* create buttons for scrolling of drawing area and element list */
5798   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
5799   {
5800     int id = scrollbutton_info[i].gadget_id;
5801     int graphic = scrollbutton_info[i].graphic;
5802     struct GraphicInfo *gd = &graphic_info[graphic];
5803     Bitmap *gd_bitmap = gd->bitmap;
5804     int gd_x1 = gd->src_x;
5805     int gd_y1 = gd->src_y;
5806     int gd_x2 = gd->src_x + gd->pressed_xoffset;
5807     int gd_y2 = gd->src_y + gd->pressed_yoffset;
5808     int width  = gd->width;
5809     int height = gd->height;
5810     int x = scrollbutton_pos[i].x;
5811     int y = scrollbutton_pos[i].y;
5812     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
5813
5814     if (id == GADGET_ID_SCROLL_LIST_UP ||
5815         id == GADGET_ID_SCROLL_LIST_DOWN)
5816     {
5817       x += PX;
5818       y += PY;
5819     }
5820     else
5821     {
5822       x += SX;
5823       y += SY;
5824     }
5825
5826     gi = CreateGadget(GDI_CUSTOM_ID, id,
5827                       GDI_CUSTOM_TYPE_ID, i,
5828                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
5829                       GDI_X, x,
5830                       GDI_Y, y,
5831                       GDI_WIDTH, width,
5832                       GDI_HEIGHT, height,
5833                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
5834                       GDI_STATE, GD_BUTTON_UNPRESSED,
5835                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
5836                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
5837                       GDI_EVENT_MASK, event_mask,
5838                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5839                       GDI_CALLBACK_ACTION, HandleControlButtons,
5840                       GDI_END);
5841
5842     if (gi == NULL)
5843       Error(ERR_EXIT, "cannot create gadget");
5844
5845     level_editor_gadget[id] = gi;
5846   }
5847
5848   /* create buttons for element list */
5849   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
5850   {
5851     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
5852     int graphic = IMG_EDITOR_PALETTE_BUTTON;
5853     struct GraphicInfo *gd = &graphic_info[graphic];
5854     Bitmap *gd_bitmap = gd->bitmap;
5855     Bitmap *deco_bitmap;
5856     int deco_x, deco_y, deco_xpos, deco_ypos;
5857     int gd_x1 = gd->src_x;
5858     int gd_y1 = gd->src_y;
5859     int gd_x2 = gd->src_x + gd->pressed_xoffset;
5860     int gd_y2 = gd->src_y + gd->pressed_yoffset;
5861     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
5862     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
5863     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
5864     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
5865     int element = editor_elements[i];
5866     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
5867     unsigned int event_mask = GD_EVENT_RELEASED;
5868
5869     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
5870
5871     deco_xpos = (gd->width  - tile_size) / 2;
5872     deco_ypos = (gd->height - tile_size) / 2;
5873
5874     gi = CreateGadget(GDI_CUSTOM_ID, id,
5875                       GDI_CUSTOM_TYPE_ID, i,
5876                       GDI_INFO_TEXT, getElementInfoText(element),
5877                       GDI_X, x,
5878                       GDI_Y, y,
5879                       GDI_WIDTH, gd->width,
5880                       GDI_HEIGHT, gd->height,
5881                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
5882                       GDI_STATE, GD_BUTTON_UNPRESSED,
5883                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
5884                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
5885                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
5886                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
5887                       GDI_DECORATION_SIZE, tile_size, tile_size,
5888                       GDI_DECORATION_SHIFTING, 1, 1,
5889                       GDI_EVENT_MASK, event_mask,
5890                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5891                       GDI_CALLBACK_ACTION, HandleControlButtons,
5892                       GDI_END);
5893
5894     if (gi == NULL)
5895       Error(ERR_EXIT, "cannot create gadget");
5896
5897     level_editor_gadget[id] = gi;
5898   }
5899 }
5900
5901 static void CreateCounterButtons()
5902 {
5903   int max_infotext_len = getMaxInfoTextLength();
5904   int i;
5905
5906   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
5907   {
5908     int j;
5909     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); /* down count button */
5910     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
5911
5912     /* determine horizontal position to the right of specified gadget */
5913     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
5914       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
5915            ED_GADGET_TEXT_DISTANCE);
5916
5917     /* determine horizontal offset for leading text */
5918     if (counterbutton_info[i].text_left != NULL)
5919       x += getTextWidthForGadget(counterbutton_info[i].text_left);
5920
5921     for (j = 0; j < 2; j++)
5922     {
5923       struct GadgetInfo *gi;
5924       int id = (j == 0 ?
5925                 counterbutton_info[i].gadget_id_down :
5926                 counterbutton_info[i].gadget_id_up);
5927       int graphic;
5928       struct GraphicInfo *gd;
5929       int gd_x1, gd_x2, gd_y1, gd_y2;
5930       unsigned int event_mask;
5931       char infotext[max_infotext_len + 1];
5932
5933       event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
5934
5935       if (i == ED_COUNTER_ID_SELECT_LEVEL)
5936       {
5937         graphic = (j == 0 ?
5938                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
5939                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
5940
5941         event_mask |= GD_EVENT_RELEASED;
5942
5943         if (j == 0)
5944         {
5945           x = DX + editor.button.prev_level.x;
5946           y = DY + editor.button.prev_level.y;
5947         }
5948         else
5949         {
5950           x = DX + editor.button.next_level.x;
5951           y = DY + editor.button.next_level.y;
5952         }
5953       }
5954       else
5955       {
5956         graphic = (j == 0 ?
5957                    IMG_EDITOR_COUNTER_DOWN :
5958                    IMG_EDITOR_COUNTER_UP);
5959       }
5960
5961       gd = &graphic_info[graphic];
5962
5963       gd_x1 = gd->src_x;
5964       gd_y1 = gd->src_y;
5965       gd_x2 = gd->src_x + gd->pressed_xoffset;
5966       gd_y2 = gd->src_y + gd->pressed_yoffset;
5967
5968       sprintf(infotext, "%s counter value by 1, 5 or 10",
5969               (j == 0 ? "decrease" : "increase"));
5970
5971       gi = CreateGadget(GDI_CUSTOM_ID, id,
5972                         GDI_CUSTOM_TYPE_ID, i,
5973                         GDI_INFO_TEXT, infotext,
5974                         GDI_X, x,
5975                         GDI_Y, y,
5976                         GDI_WIDTH, gd->width,
5977                         GDI_HEIGHT, gd->height,
5978                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
5979                         GDI_STATE, GD_BUTTON_UNPRESSED,
5980                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
5981                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
5982                         GDI_EVENT_MASK, event_mask,
5983                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5984                         GDI_CALLBACK_ACTION, HandleCounterButtons,
5985                         GDI_END);
5986
5987       if (gi == NULL)
5988         Error(ERR_EXIT, "cannot create gadget");
5989
5990       level_editor_gadget[id] = gi;
5991       right_gadget_border[id] =
5992         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
5993
5994       x += gi->width + ED_GADGET_SMALL_DISTANCE;        /* text count button */
5995
5996       if (j == 0)
5997       {
5998         int font_type = FONT_INPUT_1;
5999         int font_type_active = FONT_INPUT_1_ACTIVE;
6000
6001         id = counterbutton_info[i].gadget_id_text;
6002
6003         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6004
6005         if (i == ED_COUNTER_ID_SELECT_LEVEL)
6006         {
6007           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
6008
6009           font_type = FONT_LEVEL_NUMBER;
6010           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
6011
6012           x = DX + editor.input.level_number.x;
6013           y = DY + editor.input.level_number.y;
6014         }
6015         else
6016         {
6017           graphic = IMG_EDITOR_COUNTER_INPUT;
6018         }
6019
6020         gd = &graphic_info[graphic];
6021
6022         gd_x1 = gd->src_x;
6023         gd_y1 = gd->src_y;
6024         gd_x2 = gd->src_x + gd->active_xoffset;
6025         gd_y2 = gd->src_y + gd->active_yoffset;
6026
6027         gi = CreateGadget(GDI_CUSTOM_ID, id,
6028                           GDI_CUSTOM_TYPE_ID, i,
6029                           GDI_INFO_TEXT, "enter counter value",
6030                           GDI_X, x,
6031                           GDI_Y, y,
6032                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
6033                           GDI_NUMBER_VALUE, 0,
6034                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
6035                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
6036                           GDI_TEXT_SIZE, 3,     /* minimal counter text size */
6037                           GDI_TEXT_FONT, font_type,
6038                           GDI_TEXT_FONT_ACTIVE, font_type_active,
6039                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6040                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6041                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6042                           GDI_DESIGN_WIDTH, gd->width,
6043                           GDI_EVENT_MASK, event_mask,
6044                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6045                           GDI_CALLBACK_ACTION, HandleCounterButtons,
6046                           GDI_END);
6047
6048         if (gi == NULL)
6049           Error(ERR_EXIT, "cannot create gadget");
6050
6051         level_editor_gadget[id] = gi;
6052         right_gadget_border[id] =
6053           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
6054
6055         x += gi->width + ED_GADGET_SMALL_DISTANCE;      /* up count button */
6056       }
6057     }
6058   }
6059 }
6060
6061 static void CreateDrawingAreas()
6062 {
6063   int i;
6064
6065   /* these values are not constant, but can change at runtime */
6066   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
6067   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
6068
6069   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
6070   {
6071     struct GadgetInfo *gi;
6072     unsigned int event_mask;
6073     int id = drawingarea_info[i].gadget_id;
6074     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
6075     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
6076     int area_xsize = drawingarea_info[i].area_xsize;
6077     int area_ysize = drawingarea_info[i].area_ysize;
6078     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
6079                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
6080
6081     event_mask =
6082       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
6083       GD_EVENT_OFF_BORDERS;
6084
6085     /* determine horizontal position to the right of specified gadget */
6086     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
6087       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
6088            ED_DRAWINGAREA_TEXT_DISTANCE);
6089
6090     /* determine horizontal offset for leading text */
6091     if (drawingarea_info[i].text_left != NULL)
6092       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
6093
6094     gi = CreateGadget(GDI_CUSTOM_ID, id,
6095                       GDI_CUSTOM_TYPE_ID, i,
6096                       GDI_X, x,
6097                       GDI_Y, y,
6098                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
6099                       GDI_AREA_SIZE, area_xsize, area_ysize,
6100                       GDI_ITEM_SIZE, item_size, item_size,
6101                       GDI_EVENT_MASK, event_mask,
6102                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
6103                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
6104                       GDI_END);
6105
6106     if (gi == NULL)
6107       Error(ERR_EXIT, "cannot create gadget");
6108
6109     level_editor_gadget[id] = gi;
6110     right_gadget_border[id] =
6111       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
6112   }
6113 }
6114
6115 static void CreateTextInputGadgets()
6116 {
6117   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
6118   int max_infotext_len = getMaxInfoTextLength();
6119   int i;
6120
6121   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
6122   {
6123     int gd_x1 = gd->src_x;
6124     int gd_y1 = gd->src_y;
6125     int gd_x2 = gd->src_x + gd->active_xoffset;
6126     int gd_y2 = gd->src_y + gd->active_yoffset;
6127     struct GadgetInfo *gi;
6128     unsigned int event_mask;
6129     char infotext[MAX_OUTPUT_LINESIZE + 1];
6130     int id = textinput_info[i].gadget_id;
6131     int x, y;
6132
6133     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
6134     {
6135       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
6136       int border_size = gd->border_size;
6137       int font_nr = FONT_INPUT_1;
6138       int font_height = getFontHeight(font_nr);
6139       int xoffset = element_border + TILEX + element_border + 3 * border_size;
6140       int yoffset = element_border + (TILEY - font_height) / 2;
6141
6142       x = (editor.settings.element_name.x != -1 ?
6143            editor.settings.element_name.x :
6144            editor.settings.element_graphic.x + xoffset) - border_size;
6145       y = (editor.settings.element_name.y != -1 ?
6146            editor.settings.element_name.y :
6147            editor.settings.element_graphic.y + yoffset) - border_size;
6148     }
6149     else
6150     {
6151       x = ED_SETTINGS_X(textinput_info[i].x);
6152       y = ED_SETTINGS_Y(textinput_info[i].y);
6153     }
6154
6155     event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6156
6157     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
6158     infotext[max_infotext_len] = '\0';
6159
6160     gi = CreateGadget(GDI_CUSTOM_ID, id,
6161                       GDI_CUSTOM_TYPE_ID, i,
6162                       GDI_INFO_TEXT, infotext,
6163                       GDI_X, SX + x,
6164                       GDI_Y, SY + y,
6165                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
6166                       GDI_TEXT_VALUE, textinput_info[i].value,
6167                       GDI_TEXT_SIZE, textinput_info[i].size,
6168                       GDI_TEXT_FONT, FONT_INPUT_1,
6169                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6170                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6171                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6172                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6173                       GDI_DESIGN_WIDTH, gd->width,
6174                       GDI_EVENT_MASK, event_mask,
6175                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6176                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
6177                       GDI_END);
6178
6179     if (gi == NULL)
6180       Error(ERR_EXIT, "cannot create gadget");
6181
6182     level_editor_gadget[id] = gi;
6183   }
6184 }
6185
6186 static void CreateTextAreaGadgets()
6187 {
6188   int max_infotext_len = getMaxInfoTextLength();
6189   int i;
6190
6191   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
6192   {
6193     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
6194     int gd_x1 = gd->src_x;
6195     int gd_y1 = gd->src_y;
6196     int gd_x2 = gd->src_x + gd->active_xoffset;
6197     int gd_y2 = gd->src_y + gd->active_yoffset;
6198     struct GadgetInfo *gi;
6199     unsigned int event_mask;
6200     char infotext[MAX_OUTPUT_LINESIZE + 1];
6201     int id = textarea_info[i].gadget_id;
6202     int area_xsize = textarea_info[i].xsize;
6203     int area_ysize = textarea_info[i].ysize;
6204
6205     event_mask = GD_EVENT_TEXT_LEAVING;
6206
6207     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
6208     infotext[max_infotext_len] = '\0';
6209
6210     gi = CreateGadget(GDI_CUSTOM_ID, id,
6211                       GDI_CUSTOM_TYPE_ID, i,
6212                       GDI_INFO_TEXT, infotext,
6213                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
6214                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
6215                       GDI_TYPE, GD_TYPE_TEXT_AREA,
6216                       GDI_AREA_SIZE, area_xsize, area_ysize,
6217                       GDI_TEXT_FONT, FONT_INPUT_1,
6218                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6219                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6220                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6221                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6222                       GDI_DESIGN_WIDTH, gd->width,
6223                       GDI_EVENT_MASK, event_mask,
6224                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6225                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
6226                       GDI_END);
6227
6228     if (gi == NULL)
6229       Error(ERR_EXIT, "cannot create gadget");
6230
6231     level_editor_gadget[id] = gi;
6232   }
6233 }
6234
6235 static void CreateSelectboxGadgets()
6236 {
6237   int max_infotext_len = getMaxInfoTextLength();
6238   int i, j;
6239
6240   for (i = 0; i < ED_NUM_SELECTBOX; i++)
6241   {
6242     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
6243     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
6244     int gd_x1 = gd->src_x;
6245     int gd_y1 = gd->src_y;
6246     int gd_x2 = gd->src_x + gd->active_xoffset;
6247     int gd_y2 = gd->src_y + gd->active_yoffset;
6248     int selectbox_button_xsize = gd2->width;
6249     struct GadgetInfo *gi;
6250     unsigned int event_mask;
6251     char infotext[MAX_OUTPUT_LINESIZE + 1];
6252     int id = selectbox_info[i].gadget_id;
6253     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
6254     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
6255
6256     if (selectbox_info[i].size == -1)   /* dynamically determine size */
6257     {
6258       /* (we cannot use -1 for uninitialized values if we directly compare
6259          with results from strlen(), because the '<' and '>' operation will
6260          implicitely cast -1 to an unsigned integer value!) */
6261       selectbox_info[i].size = 0;
6262
6263       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
6264         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
6265           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
6266
6267       selectbox_info[i].size++;         /* add one character empty space */
6268     }
6269
6270     event_mask = GD_EVENT_RELEASED |
6271       GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6272
6273     /* determine horizontal position to the right of specified gadget */
6274     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
6275       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
6276            ED_GADGET_TEXT_DISTANCE);
6277
6278     /* determine horizontal offset for leading text */
6279     if (selectbox_info[i].text_left != NULL)
6280       x += getTextWidthForGadget(selectbox_info[i].text_left);
6281
6282     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
6283     infotext[max_infotext_len] = '\0';
6284
6285     gi = CreateGadget(GDI_CUSTOM_ID, id,
6286                       GDI_CUSTOM_TYPE_ID, i,
6287                       GDI_INFO_TEXT, infotext,
6288                       GDI_X, x,
6289                       GDI_Y, y,
6290                       GDI_TYPE, GD_TYPE_SELECTBOX,
6291                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
6292                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
6293                       GDI_TEXT_SIZE, selectbox_info[i].size,
6294                       GDI_TEXT_FONT, FONT_INPUT_1,
6295                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6296                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
6297                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6298                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6299                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6300                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
6301                       GDI_DESIGN_WIDTH, gd->width,
6302                       GDI_EVENT_MASK, event_mask,
6303                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6304                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
6305                       GDI_END);
6306
6307     if (gi == NULL)
6308       Error(ERR_EXIT, "cannot create gadget");
6309
6310     level_editor_gadget[id] = gi;
6311     right_gadget_border[id] =
6312       getRightGadgetBorder(gi, selectbox_info[i].text_right);
6313   }
6314 }
6315
6316 static void CreateTextbuttonGadgets()
6317 {
6318   int max_infotext_len = getMaxInfoTextLength();
6319   int i;
6320
6321   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
6322   {
6323     int id = textbutton_info[i].gadget_id;
6324     int is_tab_button =
6325       ((id >= GADGET_ID_LEVELINFO_LEVEL && id <= GADGET_ID_LEVELINFO_EDITOR) ||
6326        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
6327     int graphic =
6328       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
6329     int gadget_distance =
6330       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
6331     struct GraphicInfo *gd = &graphic_info[graphic];
6332     int gd_x1 = gd->src_x;
6333     int gd_y1 = gd->src_y;
6334     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6335     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6336     int gd_x1a = gd->src_x + gd->active_xoffset;
6337     int gd_y1a = gd->src_y + gd->active_yoffset;
6338     int border_xsize = gd->border_size + gd->draw_xoffset;
6339     int border_ysize = gd->border_size;
6340     struct GadgetInfo *gi;
6341     unsigned int event_mask;
6342     char infotext[MAX_OUTPUT_LINESIZE + 1];
6343     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
6344     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
6345
6346     if (textbutton_info[i].size == -1)  /* dynamically determine size */
6347       textbutton_info[i].size = strlen(textbutton_info[i].text);
6348
6349     event_mask = GD_EVENT_RELEASED;
6350
6351     sprintf(infotext, "%s", textbutton_info[i].infotext);
6352     infotext[max_infotext_len] = '\0';
6353
6354     /* determine horizontal position to the right of specified gadget */
6355     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6356     {
6357       int gadget_id_align = textbutton_info[i].gadget_id_align;
6358
6359       x = right_gadget_border[gadget_id_align] + gadget_distance;
6360
6361       if (textbutton_info[i].y == -1)
6362         y = level_editor_gadget[gadget_id_align]->y;
6363     }
6364
6365     /* determine horizontal offset for leading text */
6366     if (textbutton_info[i].text_left != NULL)
6367       x += getTextWidthForGadget(textbutton_info[i].text_left);
6368
6369     gi = CreateGadget(GDI_CUSTOM_ID, id,
6370                       GDI_CUSTOM_TYPE_ID, i,
6371                       GDI_INFO_TEXT, infotext,
6372                       GDI_X, x,
6373                       GDI_Y, y,
6374                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
6375                       GDI_TEXT_VALUE, textbutton_info[i].text,
6376                       GDI_TEXT_SIZE, textbutton_info[i].size,
6377                       GDI_TEXT_FONT, FONT_INPUT_2,
6378                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
6379                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6380                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6381                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
6382                       GDI_BORDER_SIZE, border_xsize, border_ysize,
6383                       GDI_DESIGN_WIDTH, gd->width,
6384                       GDI_DECORATION_SHIFTING, 1, 1,
6385                       GDI_EVENT_MASK, event_mask,
6386                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6387                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
6388                       GDI_END);
6389
6390     if (gi == NULL)
6391       Error(ERR_EXIT, "cannot create gadget");
6392
6393     level_editor_gadget[id] = gi;
6394     right_gadget_border[id] =
6395       getRightGadgetBorder(gi, textbutton_info[i].text_right);
6396   }
6397 }
6398
6399 static void CreateGraphicbuttonGadgets()
6400 {
6401   struct GadgetInfo *gi;
6402   unsigned int event_mask;
6403   int i;
6404
6405   /* create buttons for scrolling of drawing area and element list */
6406   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
6407   {
6408     int id = graphicbutton_info[i].gadget_id;
6409     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
6410     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
6411     struct GraphicInfo *gd = &graphic_info[graphicbutton_info[i].graphic];
6412     int gd_x1 = gd->src_x;
6413     int gd_y1 = gd->src_y;
6414     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6415     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6416
6417     event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6418
6419     /* determine horizontal position to the right of specified gadget */
6420     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6421       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
6422            ED_GADGET_TEXT_DISTANCE);
6423
6424     /* determine horizontal offset for leading text */
6425     if (graphicbutton_info[i].text_left != NULL)
6426       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
6427
6428     gi = CreateGadget(GDI_CUSTOM_ID, id,
6429                       GDI_CUSTOM_TYPE_ID, i,
6430                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
6431                       GDI_X, x,
6432                       GDI_Y, y,
6433                       GDI_WIDTH, gd->width,
6434                       GDI_HEIGHT, gd->height,
6435                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6436                       GDI_STATE, GD_BUTTON_UNPRESSED,
6437                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6438                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6439                       GDI_EVENT_MASK, event_mask,
6440                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6441                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
6442                       GDI_END);
6443
6444     if (gi == NULL)
6445       Error(ERR_EXIT, "cannot create gadget");
6446
6447     level_editor_gadget[id] = gi;
6448     right_gadget_border[id] =
6449       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
6450   }
6451 }
6452
6453 static void CreateScrollbarGadgets()
6454 {
6455   int i;
6456
6457   /* these values are not constant, but can change at runtime */
6458   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
6459     SX + ED_SCROLL_HORIZONTAL_XPOS;
6460   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
6461     SY + ED_SCROLL_HORIZONTAL_YPOS;
6462   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
6463     ED_SCROLL_HORIZONTAL_XSIZE;
6464   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
6465     ED_SCROLL_HORIZONTAL_YSIZE;
6466   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
6467   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
6468   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
6469   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
6470
6471   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
6472     SX + ED_SCROLL_VERTICAL_XPOS;
6473   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
6474     SY + ED_SCROLL_VERTICAL_YPOS;
6475   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
6476     ED_SCROLL_VERTICAL_XSIZE;
6477   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
6478     ED_SCROLL_VERTICAL_YSIZE;
6479   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
6480   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
6481   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
6482   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
6483
6484   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
6485     PX + ED_SCROLL2_VERTICAL_XPOS;
6486   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
6487     PY + ED_SCROLL2_VERTICAL_YPOS;
6488   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
6489     ED_SCROLL2_VERTICAL_XSIZE;
6490   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
6491     ED_SCROLL2_VERTICAL_YSIZE;
6492   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
6493   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
6494   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
6495   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
6496
6497   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
6498   {
6499     int id = scrollbar_info[i].gadget_id;
6500     int graphic = scrollbar_info[i].graphic;
6501     struct GraphicInfo *gd = &graphic_info[graphic];
6502     int gd_x1 = gd->src_x;
6503     int gd_y1 = gd->src_y;
6504     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6505     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6506     struct GadgetInfo *gi;
6507     int items_max, items_visible, item_position;
6508     unsigned int event_mask;
6509
6510     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
6511     {
6512       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
6513       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
6514       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
6515     }
6516     else        /* drawing area scrollbars */
6517     {
6518       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
6519       {
6520         items_max = MAX(lev_fieldx + 2, ed_fieldx);
6521         items_visible = ed_fieldx;
6522         item_position = 0;
6523       }
6524       else
6525       {
6526         items_max = MAX(lev_fieldy + 2, ed_fieldy);
6527         items_visible = ed_fieldy;
6528         item_position = 0;
6529       }
6530     }
6531
6532     event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
6533
6534     gi = CreateGadget(GDI_CUSTOM_ID, id,
6535                       GDI_CUSTOM_TYPE_ID, i,
6536                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
6537                       GDI_X, scrollbar_pos[i].x,
6538                       GDI_Y, scrollbar_pos[i].y,
6539                       GDI_WIDTH, scrollbar_pos[i].width,
6540                       GDI_HEIGHT, scrollbar_pos[i].height,
6541                       GDI_TYPE, scrollbar_info[i].type,
6542                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
6543                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
6544                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
6545                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
6546                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
6547                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
6548                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
6549                       GDI_STATE, GD_BUTTON_UNPRESSED,
6550                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6551                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6552                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6553                       GDI_EVENT_MASK, event_mask,
6554                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6555                       GDI_CALLBACK_ACTION, HandleControlButtons,
6556                       GDI_END);
6557
6558     if (gi == NULL)
6559       Error(ERR_EXIT, "cannot create gadget");
6560
6561     level_editor_gadget[id] = gi;
6562   }
6563 }
6564
6565 static void CreateCheckbuttonGadgets()
6566 {
6567   struct GadgetInfo *gi;
6568   unsigned int event_mask;
6569   int i;
6570
6571   event_mask = GD_EVENT_PRESSED;
6572
6573   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
6574   {
6575     int id = checkbutton_info[i].gadget_id;
6576     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
6577                    IMG_EDITOR_CHECKBOX);
6578     struct GraphicInfo *gd = &graphic_info[graphic];
6579     int gd_x1 = gd->src_x;
6580     int gd_y1 = gd->src_y;
6581     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6582     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6583     int gd_x1a = gd->src_x + gd->active_xoffset;
6584     int gd_y1a = gd->src_y + gd->active_yoffset;
6585     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
6586     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
6587     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
6588     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
6589
6590     /* determine horizontal position to the right of specified gadget */
6591     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6592       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
6593            ED_GADGET_TEXT_DISTANCE);
6594
6595     /* determine horizontal offset for leading text */
6596     if (checkbutton_info[i].text_left != NULL)
6597       x += getTextWidthForGadget(checkbutton_info[i].text_left);
6598
6599     gi = CreateGadget(GDI_CUSTOM_ID, id,
6600                       GDI_CUSTOM_TYPE_ID, i,
6601                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
6602                       GDI_X, x,
6603                       GDI_Y, y,
6604                       GDI_WIDTH, gd->width,
6605                       GDI_HEIGHT, gd->height,
6606                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
6607                       GDI_CHECKED, *checkbutton_info[i].value,
6608                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6609                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6610                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
6611                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
6612                       GDI_EVENT_MASK, event_mask,
6613                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6614                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
6615                       GDI_END);
6616
6617     if (gi == NULL)
6618       Error(ERR_EXIT, "cannot create gadget");
6619
6620     level_editor_gadget[id] = gi;
6621     right_gadget_border[id] =
6622       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
6623   }
6624 }
6625
6626 static void CreateRadiobuttonGadgets()
6627 {
6628   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_RADIOBUTTON];
6629   int gd_x1 = gd->src_x;
6630   int gd_y1 = gd->src_y;
6631   int gd_x2 = gd->src_x + gd->pressed_xoffset;
6632   int gd_y2 = gd->src_y + gd->pressed_yoffset;
6633   int gd_x1a = gd->src_x + gd->active_xoffset;
6634   int gd_y1a = gd->src_y + gd->active_yoffset;
6635   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
6636   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
6637   struct GadgetInfo *gi;
6638   unsigned int event_mask;
6639   int i;
6640
6641   event_mask = GD_EVENT_PRESSED;
6642
6643   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
6644   {
6645     int id = radiobutton_info[i].gadget_id;
6646     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
6647     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
6648
6649     int checked =
6650       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
6651
6652     /* determine horizontal position to the right of specified gadget */
6653     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
6654       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
6655            ED_GADGET_TEXT_DISTANCE);
6656
6657     /* determine horizontal offset for leading text */
6658     if (radiobutton_info[i].text_left != NULL)
6659       x += getTextWidthForGadget(radiobutton_info[i].text_left);
6660
6661     gi = CreateGadget(GDI_CUSTOM_ID, id,
6662                       GDI_CUSTOM_TYPE_ID, i,
6663                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
6664                       GDI_X, x,
6665                       GDI_Y, y,
6666                       GDI_WIDTH, gd->width,
6667                       GDI_HEIGHT, gd->height,
6668                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
6669                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
6670                       GDI_CHECKED, checked,
6671                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6672                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6673                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
6674                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
6675                       GDI_EVENT_MASK, event_mask,
6676                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6677                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
6678                       GDI_END);
6679
6680     if (gi == NULL)
6681       Error(ERR_EXIT, "cannot create gadget");
6682
6683     level_editor_gadget[id] = gi;
6684     right_gadget_border[id] =
6685       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
6686   }
6687 }
6688
6689 void CreateLevelEditorGadgets()
6690 {
6691   /* force EDITOR font inside level editor */
6692   SetFontStatus(GAME_MODE_EDITOR);
6693
6694   /* these values are not constant, but can change at runtime */
6695   ed_fieldx = MAX_ED_FIELDX - 1;
6696   ed_fieldy = MAX_ED_FIELDY - 1;
6697
6698   num_editor_gadgets = NUM_EDITOR_GADGETS;
6699
6700   // printf("::: allocating %d gadgets ...\n", num_editor_gadgets);
6701
6702   level_editor_gadget =
6703     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
6704   right_gadget_border =
6705     checked_calloc(num_editor_gadgets * sizeof(int));
6706
6707   editor_el_empty = checked_calloc(ED_NUM_ELEMENTLIST_BUTTONS * sizeof(int));
6708   editor_el_empty_ptr = editor_el_empty;
6709
6710   use_permanent_palette = !editor.palette.show_as_separate_screen;
6711
6712   ReinitializeElementList();
6713
6714   CreateControlButtons();
6715   CreateScrollbarGadgets();
6716
6717   /* order of function calls is important because of cross-references */
6718   CreateCheckbuttonGadgets();
6719   CreateCounterButtons();
6720   CreateRadiobuttonGadgets();
6721   CreateTextInputGadgets();
6722   CreateTextAreaGadgets();
6723   CreateSelectboxGadgets();
6724   CreateGraphicbuttonGadgets();
6725   CreateTextbuttonGadgets();
6726   CreateDrawingAreas();
6727
6728   ResetFontStatus();
6729 }
6730
6731 void FreeLevelEditorGadgets()
6732 {
6733   int i;
6734
6735   // printf("::: freeing %d gadgets ...\n", num_editor_gadgets);
6736
6737   for (i = 0; i < num_editor_gadgets; i++)
6738   {
6739     FreeGadget(level_editor_gadget[i]);
6740
6741     level_editor_gadget[i] = NULL;
6742   }
6743
6744   checked_free(level_editor_gadget);
6745   checked_free(right_gadget_border);
6746
6747   checked_free(editor_el_empty);
6748 }
6749
6750 static void MapCounterButtons(int id)
6751 {
6752   int font_nr = FONT_TEXT_1;
6753   int font_height = getFontHeight(font_nr);
6754   int gadget_id_down = counterbutton_info[id].gadget_id_down;
6755   int gadget_id_text = counterbutton_info[id].gadget_id_text;
6756   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
6757   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
6758   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
6759   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
6760   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
6761   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6762   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
6763   int yoffset = (gi_down->height - font_height) / 2;
6764   int x_left = gi_down->x - xoffset_left;
6765   int x_right;  /* set after gadget position was modified */
6766   int y_above = gi_down->y - yoffset_above;
6767   int x = gi_down->x;
6768   int y;        /* set after gadget position was modified */
6769
6770   /* counter limits must be changed first to prevent value truncation */
6771   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
6772                             counterbutton_info[id].max_value);
6773
6774   /* right text position might have changed after setting position above */
6775   x_right = gi_up->x + gi_up->width + xoffset_right;
6776
6777   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
6778
6779   /* set position for "value[1,2,3,4]" counter gadgets (score in most cases) */
6780   if (id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
6781       id <= ED_COUNTER_ID_ELEMENT_VALUE4)
6782   {
6783     ModifyGadget(gi_down, GDI_Y,
6784                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
6785     ModifyGadget(gi_text, GDI_Y,
6786                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
6787     ModifyGadget(gi_up,   GDI_Y,
6788                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
6789   }
6790
6791   /* vertical position might have changed after setting position above */
6792   y = gi_up->y + yoffset;
6793
6794   if (counterbutton_info[id].text_above)
6795     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
6796
6797   if (counterbutton_info[id].text_left)
6798     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
6799
6800   if (counterbutton_info[id].text_right)
6801     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
6802
6803   MapGadget(gi_down);
6804   MapGadget(gi_text);
6805   MapGadget(gi_up);
6806 }
6807
6808 static void MapControlButtons()
6809 {
6810   int counter_id;
6811   int i;
6812
6813   /* map toolbox buttons (excluding special CE toolbox buttons) */
6814   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
6815     MapGadget(level_editor_gadget[i]);
6816
6817   /* map toolbox buttons (element properties buttons) */
6818   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
6819     MapGadget(level_editor_gadget[i]);
6820
6821   if (use_permanent_palette)
6822   {
6823     /* map buttons to select elements */
6824     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6825       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
6826     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
6827     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
6828     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
6829   }
6830
6831   /* map buttons to select level */
6832   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
6833   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
6834   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
6835   MapCounterButtons(counter_id);
6836 }
6837
6838 static void MapDrawingArea(int id)
6839 {
6840   int font_nr = FONT_TEXT_1;
6841   int font_height = getFontHeight(font_nr);
6842   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
6843   int area_xsize = gi->drawing.area_xsize;
6844   int area_ysize = gi->drawing.area_ysize;
6845   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
6846   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
6847   int x_left  = gi->x - xoffset_left;
6848   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
6849   int x_below = gi->x + (gi->width - xoffset_below) / 2;
6850   int y_side  = gi->y + (gi->height - font_height) / 2;
6851   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
6852
6853   if (drawingarea_info[id].text_left)
6854     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
6855
6856   if (drawingarea_info[id].text_right)
6857     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
6858
6859   if (drawingarea_info[id].text_below)
6860     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
6861
6862   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
6863   {
6864     DrawElementBorder(gi->x, gi->y,
6865                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
6866                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
6867
6868     DrawDrawingArea(id);
6869   }
6870
6871   MapGadget(gi);
6872 }
6873
6874 static void MapTextInputGadget(int id)
6875 {
6876   int font_nr = FONT_TEXT_1;
6877   int font_height = getFontHeight(font_nr);
6878   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
6879   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
6880   int x_above = ED_SETTINGS_X(textinput_info[id].x);
6881   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
6882
6883   if (textinput_info[id].text_above)
6884     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
6885
6886   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
6887
6888   MapGadget(gi);
6889 }
6890
6891 static void MapTextAreaGadget(int id)
6892 {
6893   int font_nr = FONT_TEXT_1;
6894   int font_height = getFontHeight(font_nr);
6895   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
6896   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
6897   int x_above = ED_SETTINGS_X(textarea_info[id].x);
6898   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
6899
6900   if (textarea_info[id].text_above)
6901     DrawTextS(x_above, y_above, font_nr, textarea_info[id].text_above);
6902
6903   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
6904
6905   MapGadget(gi);
6906 }
6907
6908 static void MapSelectboxGadget(int id)
6909 {
6910   int font_nr = FONT_TEXT_1;
6911   int font_height = getFontHeight(font_nr);
6912   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
6913   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
6914   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6915   int yoffset = (gi->height - font_height) / 2;
6916   int x_left = gi->x - xoffset_left;
6917   int x_right = gi->x + gi->width + xoffset_right;
6918   int y = gi->y + yoffset;
6919
6920   if (selectbox_info[id].text_left)
6921     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
6922
6923   if (selectbox_info[id].text_right)
6924     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
6925
6926   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
6927
6928   MapGadget(gi);
6929 }
6930
6931 static void MapTextbuttonGadget(int id)
6932 {
6933   int font_nr = FONT_TEXT_1;
6934   int font_height = getFontHeight(font_nr);
6935   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
6936   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
6937   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6938   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
6939   int yoffset = (gi->height - font_height) / 2;
6940   int x_left = gi->x - xoffset_left;
6941   int x_right = gi->x + gi->width + xoffset_right;
6942   int y_above = gi->y - yoffset_above;
6943   int x = gi->x;
6944   int y = gi->y + yoffset;
6945
6946   /* only show button to delete change pages when more than minimum pages */
6947   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
6948       custom_element.num_change_pages == MIN_CHANGE_PAGES)
6949     return;
6950
6951   if (textbutton_info[id].text_above)
6952     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
6953
6954   if (textbutton_info[id].text_left)
6955     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
6956
6957   if (textbutton_info[id].text_right)
6958     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
6959
6960   MapGadget(gi);
6961 }
6962
6963 static void MapGraphicbuttonGadget(int id)
6964 {
6965   int font_nr = FONT_TEXT_1;
6966   int font_height = getFontHeight(font_nr);
6967   struct GadgetInfo *gi= level_editor_gadget[graphicbutton_info[id].gadget_id];
6968   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
6969   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6970   int yoffset = (gi->height - font_height) / 2;
6971   int x_left = gi->x - xoffset_left;
6972   int x_right = gi->x + gi->width + xoffset_right;
6973   int y = gi->y + yoffset;
6974
6975   if (graphicbutton_info[id].text_left)
6976     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
6977
6978   if (graphicbutton_info[id].text_right)
6979     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
6980
6981   MapGadget(gi);
6982 }
6983
6984 static void MapRadiobuttonGadget(int id)
6985 {
6986   int font_nr = FONT_TEXT_1;
6987   int font_height = getFontHeight(font_nr);
6988   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
6989   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
6990   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6991   int yoffset = (gi->height - font_height) / 2;
6992   int x_left = gi->x - xoffset_left;
6993   int x_right = gi->x + gi->width + xoffset_right;
6994   int y = gi->y + yoffset;
6995   boolean checked =
6996     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
6997
6998   if (radiobutton_info[id].text_left)
6999     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
7000
7001   if (radiobutton_info[id].text_right)
7002     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
7003
7004   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
7005
7006   MapGadget(gi);
7007 }
7008
7009 static void MapCheckbuttonGadget(int id)
7010 {
7011   int font_nr = FONT_TEXT_1;
7012   int font_height = getFontHeight(font_nr);
7013   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
7014   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
7015   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7016   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7017   int yoffset = (gi->height - font_height) / 2;
7018   int y_above = gi->y - yoffset_above;
7019   int x = gi->x;
7020   int x_left, x_right, y;       /* set after gadget position was modified */
7021
7022   /* set position for gadgets with dynamically determined position */
7023   if (checkbutton_info[id].x != -1)     /* do not change dynamic positions */
7024     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x),GDI_END);
7025   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
7026
7027   x_left = gi->x - xoffset_left;
7028   x_right = gi->x + gi->width + xoffset_right;
7029   y = gi->y + yoffset;
7030
7031   if (checkbutton_info[id].text_above)
7032     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
7033
7034   if (checkbutton_info[id].text_left)
7035     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
7036
7037   if (checkbutton_info[id].text_right)
7038     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
7039
7040   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
7041
7042   MapGadget(gi);
7043 }
7044
7045 static void MapMainDrawingArea()
7046 {
7047   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
7048   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
7049   int i;
7050
7051   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
7052   {
7053     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
7054           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
7055          no_horizontal_scrollbar) ||
7056         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
7057           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
7058          no_vertical_scrollbar))
7059       continue;
7060
7061     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
7062   }
7063
7064   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
7065   {
7066     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
7067         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
7068       continue;
7069
7070     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
7071   }
7072
7073   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
7074 }
7075
7076 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
7077 {
7078   int i;
7079
7080   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7081   {
7082     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
7083         i == GADGET_ID_CUSTOM_COPY_TO ||
7084         i == GADGET_ID_CUSTOM_EXCHANGE ||
7085         i == GADGET_ID_CUSTOM_COPY ||
7086         i == GADGET_ID_CUSTOM_PASTE)
7087     {
7088       if (map)
7089         MapGadget(level_editor_gadget[i]);
7090       else
7091         UnmapGadget(level_editor_gadget[i]);
7092     }
7093   }
7094 }
7095
7096 static void MapLevelEditorToolboxCustomGadgets()
7097 {
7098   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
7099 }
7100
7101 static void UnmapLevelEditorToolboxCustomGadgets()
7102 {
7103   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
7104 }
7105
7106 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
7107 {
7108   int i;
7109
7110   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
7111   {
7112     if (i != GADGET_ID_SINGLE_ITEMS &&
7113         i != GADGET_ID_PICK_ELEMENT)
7114     {
7115       struct GadgetInfo *gi = level_editor_gadget[i];
7116
7117       if (map)
7118       {
7119         MapGadget(gi);
7120       }
7121       else
7122       {
7123         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
7124         struct GraphicInfo *gd = &graphic_info[graphic];
7125
7126         UnmapGadget(gi);
7127
7128         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
7129                    gi->width, gi->height, gi->x, gi->y);
7130
7131         redraw_mask |= REDRAW_DOOR_3;
7132       }
7133     }
7134   }
7135 }
7136
7137 static void MapLevelEditorToolboxDrawingGadgets()
7138 {
7139   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
7140 }
7141
7142 static void UnmapLevelEditorToolboxDrawingGadgets()
7143 {
7144   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
7145 }
7146
7147 static void UnmapDrawingArea(int id)
7148 {
7149   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
7150 }
7151
7152 static void UnmapLevelEditorFieldGadgets()
7153 {
7154   int i;
7155
7156   for (i = 0; i < num_editor_gadgets; i++)
7157     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
7158                           level_editor_gadget[i]->y))
7159       UnmapGadget(level_editor_gadget[i]);
7160 }
7161
7162 void UnmapLevelEditorGadgets()
7163 {
7164   int i;
7165
7166   for (i = 0; i < num_editor_gadgets; i++)
7167     UnmapGadget(level_editor_gadget[i]);
7168 }
7169
7170 static void ResetUndoBuffer()
7171 {
7172   undo_buffer_position = -1;
7173   undo_buffer_steps = -1;
7174   redo_buffer_steps = 0;
7175
7176   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
7177
7178   level.changed = FALSE;
7179 }
7180
7181 static void DrawEditModeWindow()
7182 {
7183   ModifyEditorElementList();
7184   RedrawDrawingElements();
7185
7186   if (edit_mode == ED_MODE_INFO)
7187     DrawLevelInfoWindow();
7188   else if (edit_mode == ED_MODE_PROPERTIES)
7189     DrawPropertiesWindow();
7190   else if (edit_mode == ED_MODE_PALETTE)
7191     DrawPaletteWindow();
7192   else  /* edit_mode == ED_MODE_DRAWING */
7193     DrawDrawingWindow();
7194 }
7195
7196 static void ChangeEditModeWindow(int new_edit_mode)
7197 {
7198   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
7199
7200   DrawEditModeWindow();
7201 }
7202
7203 static boolean LevelChanged()
7204 {
7205   boolean field_changed = FALSE;
7206   int x, y;
7207
7208   for (y = 0; y < lev_fieldy; y++)
7209     for (x = 0; x < lev_fieldx; x++)
7210       if (Feld[x][y] != level.field[x][y])
7211         field_changed = TRUE;
7212
7213   return (level.changed || field_changed);
7214 }
7215
7216 static boolean PrepareSavingIntoPersonalLevelSet()
7217 {
7218   static LevelDirTree *last_copied_leveldir = NULL;
7219   static LevelDirTree *last_written_leveldir = NULL;
7220   static int last_copied_level_nr = -1;
7221   static int last_written_level_nr = -1;
7222   LevelDirTree *leveldir_former = leveldir_current;
7223   int level_nr_former = level_nr;
7224   int new_level_nr;
7225
7226   // remember last mod/save so that for current session, we write
7227   // back to the same personal copy, asking only about overwrite.
7228   if (leveldir_current == last_copied_leveldir &&
7229       level_nr == last_copied_level_nr)
7230   {
7231     // "cd" to personal level set dir (as used when writing last copy)
7232     leveldir_current = last_written_leveldir;
7233     level_nr = last_written_level_nr;
7234
7235     return TRUE;
7236   }
7237
7238   if (!Request("This level is read only! "
7239                "Save into personal level set?", REQ_ASK))
7240     return FALSE;
7241
7242   // "cd" to personal level set dir (for writing copy the first time)
7243   leveldir_current =
7244     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
7245
7246   // find unused level number
7247   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
7248   {
7249     static char *level_filename = NULL;
7250
7251     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
7252
7253     if (!fileExists(level_filename))
7254       break;
7255   }
7256
7257   last_copied_leveldir = leveldir_former;
7258   last_copied_level_nr = level_nr_former;
7259
7260   last_written_leveldir = leveldir_current;
7261   last_written_level_nr = level_nr = new_level_nr;
7262
7263   return TRUE;
7264 }
7265
7266 static void ModifyLevelInfoForSavingIntoPersonalLevelSet(char *former_name)
7267 {
7268   static char *filename_levelinfo = NULL, *mod_name = NULL;
7269   FILE *file;
7270
7271   // annotate this copy-and-mod in personal levelinfo.conf
7272   setString(&filename_levelinfo,
7273             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
7274
7275   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
7276   {
7277     fprintf(file, "\n");
7278     fprintf(file, "# level %d was modified from:\n", level_nr);
7279     fprintf(file, "# - previous level set name:    %s\n",
7280             former_name);
7281     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
7282             level.file_info.nr, level.name);
7283     fprintf(file, "# - previous author:            %s\n",
7284             level.author);
7285     fprintf(file, "# - previous save date:         ");
7286
7287     if (level.creation_date.src == DATE_SRC_LEVELFILE)
7288     {
7289       fprintf(file, "%04d-%02d-%02d\n",
7290               level.creation_date.year,
7291               level.creation_date.month,
7292               level.creation_date.day);
7293     }
7294     else
7295     {
7296       fprintf(file, "not recorded\n");
7297     }
7298
7299     fclose(file);
7300   }
7301
7302   if (level_nr > leveldir_current->last_level)
7303   {
7304     static char *temp_levelinfo = NULL;
7305     FILE *temp_file = NULL;
7306     char line[MAX_LINE_LEN];
7307
7308     setString(&temp_levelinfo,
7309               getPath2(getCurrentLevelDir(),
7310                        getStringCat2(LEVELINFO_FILENAME, ".new")));
7311
7312     if ((file = fopen(filename_levelinfo, MODE_READ)) &&
7313         (temp_file = fopen(temp_levelinfo, MODE_WRITE)))
7314     {
7315       while (fgets(line, MAX_LINE_LEN, file))
7316       {
7317         if (!strPrefix(line, "levels:"))
7318           fputs(line, temp_file);
7319         else
7320           fprintf(temp_file, "%-32s%d\n", "levels:", level_nr + 9);
7321       }
7322     }
7323
7324     if (temp_file)
7325       fclose(temp_file);
7326
7327     if (file)
7328       fclose(file);
7329
7330     // needs error handling; also, ok on dos/win?
7331     unlink(filename_levelinfo);
7332     rename(temp_levelinfo, filename_levelinfo);
7333   }
7334
7335   // else: allow the save even if annotation failed
7336
7337   // now... spray graffiti on the old level vital statistics
7338   // user can change these; just trying to set a good baseline
7339
7340   // don't truncate names for fear of making offensive or silly:
7341   // long-named original author only recorded in levelinfo.conf.
7342   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
7343   if (!strEqual(level.author, leveldir_current->author))
7344   {
7345     setString(&mod_name, getStringCat3(leveldir_current->author,
7346                                        " after ", level.author));
7347
7348     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
7349       setString(&mod_name,
7350                 getStringCat2(leveldir_current->author, " (ed.)"));
7351
7352     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
7353       setString(&mod_name, leveldir_current->author);
7354
7355     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
7356
7357     // less worried about truncation here
7358     setString(&mod_name, getStringCat2("Mod: ", level.name));
7359     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
7360   }
7361 }
7362
7363 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
7364                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
7365 {
7366   int x, y;
7367
7368   for (x = 0; x < lev_fieldx; x++)
7369     for (y = 0; y < lev_fieldy; y++)
7370       dst[x][y] = src[x][y];
7371 }
7372
7373 static int setSelectboxValue(int selectbox_id, int new_value)
7374 {
7375   int new_index_value = 0;
7376   int i;
7377
7378   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
7379     if (selectbox_info[selectbox_id].options[i].value == new_value)
7380       new_index_value = i;
7381
7382   *selectbox_info[selectbox_id].value =
7383     selectbox_info[selectbox_id].options[new_index_value].value;
7384
7385   return new_index_value;
7386 }
7387
7388 static void setSelectboxSpecialActionVariablesIfNeeded()
7389 {
7390   int i;
7391
7392   /* change action mode and arg variables according to action type variable */
7393   for (i = 0; action_arg_options[i].value != -1; i++)
7394   {
7395     if (action_arg_options[i].value == custom_element_change.action_type)
7396     {
7397       int mode = action_arg_options[i].mode;
7398
7399       /* only change if corresponding selectbox has changed */
7400       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
7401           action_arg_modes[mode])
7402         custom_element_change.action_mode = -1;
7403
7404       /* only change if corresponding selectbox has changed */
7405       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
7406           action_arg_options[i].options)
7407         custom_element_change.action_arg = -1;
7408
7409       break;
7410     }
7411   }
7412 }
7413
7414 static void setSelectboxSpecialActionOptions()
7415 {
7416   int i;
7417
7418   /* change action mode and arg selectbox according to action type selectbox */
7419   for (i = 0; action_arg_options[i].value != -1; i++)
7420   {
7421     if (action_arg_options[i].value == custom_element_change.action_type)
7422     {
7423       int mode = action_arg_options[i].mode;
7424
7425       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
7426                                    action_arg_modes[mode]);
7427       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
7428                                  custom_element_change.action_mode);
7429
7430       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
7431                                    action_arg_options[i].options);
7432       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
7433                                  custom_element_change.action_arg);
7434       break;
7435     }
7436   }
7437 }
7438
7439 static void copy_custom_element_settings(int element_from, int element_to)
7440 {
7441   struct ElementInfo *ei_from = &element_info[element_from];
7442   struct ElementInfo *ei_to = &element_info[element_to];
7443
7444   copyElementInfo(ei_from, ei_to);
7445 }
7446
7447 static void replace_custom_element_in_settings(int element_from,
7448                                                int element_to)
7449 {
7450   int i, j, x, y;
7451
7452   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
7453   {
7454     struct ElementInfo *ei = &element_info[i];
7455
7456     for (y = 0; y < 3; y++)
7457       for (x = 0; x < 3; x++)
7458         if (ei->content.e[x][y] == element_from)
7459           ei->content.e[x][y] = element_to;
7460
7461     for (j = 0; j < ei->num_change_pages; j++)
7462     {
7463       struct ElementChangeInfo *change = &ei->change_page[j];
7464
7465       if (change->target_element == element_from)
7466         change->target_element = element_to;
7467
7468       if (change->initial_trigger_element == element_from)
7469         change->initial_trigger_element = element_to;
7470
7471       if (change->action_element == element_from)
7472         change->action_element = element_to;
7473
7474       for (y = 0; y < 3; y++)
7475         for (x = 0; x < 3; x++)
7476           if (change->target_content.e[x][y] == element_from)
7477             change->target_content.e[x][y] = element_to;
7478     }
7479
7480     if (ei->group != NULL)                              /* group or internal */
7481       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
7482         if (ei->group->element[j] == element_from)
7483           ei->group->element[j] = element_to;
7484   }
7485 }
7486
7487 static void replace_custom_element_in_playfield(int element_from,
7488                                                 int element_to)
7489 {
7490   int x, y;
7491
7492   for (x = 0; x < lev_fieldx; x++)
7493     for (y = 0; y < lev_fieldy; y++)
7494       if (Feld[x][y] == element_from)
7495         Feld[x][y] = element_to;
7496 }
7497
7498 static boolean CopyCustomElement(int element_old, int element_new,
7499                                  int copy_mode)
7500 {
7501   int copy_mode_orig = copy_mode;
7502
7503   if (copy_mode == GADGET_ID_CUSTOM_COPY)
7504   {
7505     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
7506                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
7507     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
7508   }
7509   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
7510   {
7511     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
7512                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
7513     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
7514
7515     level.changed = TRUE;
7516   }
7517   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
7518   {
7519     Request("Please choose custom element!", REQ_CONFIRM);
7520
7521     return FALSE;
7522   }
7523   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
7524   {
7525     Request("Please choose group element!", REQ_CONFIRM);
7526
7527     return FALSE;
7528   }
7529   else
7530   {
7531     level.changed = TRUE;
7532   }
7533
7534   /* when modifying custom/group element, ask for copying level template */
7535   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
7536   {
7537     if (!AskToCopyAndModifyLevelTemplate())
7538       return FALSE;
7539   }
7540
7541   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
7542   {
7543     copy_custom_element_settings(element_new, element_old);
7544   }
7545   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
7546   {
7547     copy_custom_element_settings(element_old, element_new);
7548   }
7549   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
7550   {
7551     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
7552     copy_custom_element_settings(element_new, element_old);
7553     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
7554
7555     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
7556     replace_custom_element_in_settings(element_new, element_old);
7557     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
7558
7559     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
7560     replace_custom_element_in_playfield(element_new, element_old);
7561     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
7562   }
7563
7564   UpdateCustomElementGraphicGadgets();
7565   DrawPropertiesWindow();
7566
7567   return TRUE;
7568 }
7569
7570 static void CopyCustomElementPropertiesToEditor(int element)
7571 {
7572   int i;
7573   int current_change_page = element_info[element].current_change_page;
7574
7575   /* dynamically (re)build selectbox for selecting change page */
7576   for (i = 0; i < element_info[element].num_change_pages; i++)
7577   {
7578     sprintf(options_change_page_strings[i], "%d", i + 1);
7579
7580     options_change_page[i].value = i;
7581     options_change_page[i].text = options_change_page_strings[i];
7582   }
7583
7584   options_change_page[i].value = -1;
7585   options_change_page[i].text = NULL;
7586
7587   /* needed here to initialize combined element properties */
7588   InitElementPropertiesEngine(level.game_version);
7589
7590   element_info[element].change =
7591     &element_info[element].change_page[current_change_page];
7592
7593   custom_element = element_info[element];
7594   custom_element_change = *element_info[element].change;
7595
7596   /* needed to initially set selectbox options for special action options */
7597   setSelectboxSpecialActionOptions();
7598
7599   /* needed to initially set selectbox value variables to reliable defaults */
7600   for (i = 0; i < ED_NUM_SELECTBOX; i++)
7601     setSelectboxValue(i, *selectbox_info[i].value);
7602
7603   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
7604     custom_element_properties[i] = HAS_PROPERTY(element, i);
7605
7606   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
7607     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
7608
7609   /* ---------- element settings: configure (custom elements) ------------- */
7610
7611   /* set accessible layer selectbox help value */
7612   custom_element.access_type =
7613     (IS_WALKABLE(element) ? EP_WALKABLE :
7614      IS_PASSABLE(element) ? EP_PASSABLE :
7615      custom_element.access_type);
7616   custom_element.access_layer =
7617     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
7618      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
7619      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
7620      custom_element.access_layer);
7621   custom_element.access_protected =
7622     (IS_PROTECTED(element) ? 1 : 0);
7623   custom_element_properties[EP_ACCESSIBLE] =
7624     (IS_ACCESSIBLE_OVER(element) ||
7625      IS_ACCESSIBLE_INSIDE(element) ||
7626      IS_ACCESSIBLE_UNDER(element));
7627
7628   /* set walk-to-object action selectbox help value */
7629   custom_element.walk_to_action =
7630     (IS_DIGGABLE(element) ? EP_DIGGABLE :
7631      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
7632      IS_DROPPABLE(element) ? EP_DROPPABLE :
7633      IS_THROWABLE(element) ? EP_THROWABLE :
7634      IS_PUSHABLE(element) ? EP_PUSHABLE :
7635      custom_element.walk_to_action);
7636   custom_element_properties[EP_WALK_TO_OBJECT] =
7637     (IS_DIGGABLE(element) ||
7638      IS_COLLECTIBLE_ONLY(element) ||
7639      IS_DROPPABLE(element) ||
7640      IS_THROWABLE(element) ||
7641      IS_PUSHABLE(element));
7642
7643   /* set smash targets selectbox help value */
7644   custom_element.smash_targets =
7645     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
7646      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
7647      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
7648      custom_element.smash_targets);
7649   custom_element_properties[EP_CAN_SMASH] =
7650     (CAN_SMASH_EVERYTHING(element) ||
7651      CAN_SMASH_ENEMIES(element) ||
7652      CAN_SMASH_PLAYER(element));
7653
7654   /* set deadliness selectbox help value */
7655   custom_element.deadliness =
7656     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
7657      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
7658      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
7659      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
7660      custom_element.deadliness);
7661   custom_element_properties[EP_DEADLY] =
7662     (DONT_TOUCH(element) ||
7663      DONT_GET_HIT_BY(element) ||
7664      DONT_COLLIDE_WITH(element) ||
7665      DONT_RUN_INTO(element));
7666
7667   /* ---------- element settings: advanced (custom elements) --------------- */
7668
7669   /* set "change by direct action" selectbox help value */
7670   custom_element_change.direct_action =
7671     (HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
7672      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
7673      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
7674      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
7675      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
7676      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
7677      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
7678      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
7679      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
7680      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
7681      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
7682      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
7683      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
7684      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
7685      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
7686      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
7687      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
7688      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
7689      custom_element_change.direct_action);
7690
7691   /* set "change by other element action" selectbox help value */
7692   custom_element_change.other_action =
7693     (HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
7694      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
7695      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
7696      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
7697      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
7698      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
7699      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
7700      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
7701      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
7702      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
7703      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
7704      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
7705      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
7706      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
7707      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
7708      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
7709      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
7710      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
7711      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
7712      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
7713      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
7714      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
7715      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
7716      custom_element_change.other_action);
7717 }
7718
7719 static void CopyGroupElementPropertiesToEditor(int element)
7720 {
7721   group_element_info = *element_info[element].group;
7722   custom_element = element_info[element];       /* needed for description */
7723 }
7724
7725 static void CopyClassicElementPropertiesToEditor(int element)
7726 {
7727   if (ELEM_IS_PLAYER(element) || COULD_MOVE_INTO_ACID(element))
7728     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
7729       getMoveIntoAcidProperty(&level, element);
7730
7731   if (MAYBE_DONT_COLLIDE_WITH(element))
7732     custom_element_properties[EP_DONT_COLLIDE_WITH] =
7733       getDontCollideWithProperty(&level, element);
7734 }
7735
7736 static void CopyElementPropertiesToEditor(int element)
7737 {
7738   if (IS_CUSTOM_ELEMENT(element))
7739     CopyCustomElementPropertiesToEditor(element);
7740   else if (IS_GROUP_ELEMENT(element))
7741     CopyGroupElementPropertiesToEditor(element);
7742   else
7743     CopyClassicElementPropertiesToEditor(element);
7744 }
7745
7746 static boolean AskToCopyAndModifyLevelTemplate()
7747 {
7748   if (Request("Copy and modify settings from level template?", REQ_ASK))
7749   {
7750     level.use_custom_template = FALSE;
7751
7752     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
7753                  GDI_CHECKED, FALSE, GDI_END);
7754     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
7755                  GDI_CHECKED, FALSE, GDI_END);
7756
7757     return TRUE;
7758   }
7759   else
7760   {
7761     LoadLevelTemplate(-1);      /* this resets all element modifications ... */
7762
7763     DrawEditModeWindow();       /* ... and copies them to 'custom_element' */
7764
7765     return FALSE;
7766   }
7767 }
7768
7769 static void CopyCustomElementPropertiesToGame(int element)
7770 {
7771   int i;
7772   int access_type_and_layer;
7773
7774   /* mark that this custom element has been modified */
7775   custom_element.modified_settings = TRUE;
7776   level.changed = TRUE;
7777
7778   if (level.use_custom_template)
7779     AskToCopyAndModifyLevelTemplate();
7780
7781   element_info[element] = custom_element;
7782   *element_info[element].change = custom_element_change;
7783
7784   /* ---------- element settings: configure (custom elements) ------------- */
7785
7786   /* set accessible property from checkbox and selectbox */
7787   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
7788   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
7789   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
7790   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
7791   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
7792   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
7793   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
7794                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
7795                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
7796   custom_element_properties[access_type_and_layer] =
7797     custom_element_properties[EP_ACCESSIBLE];
7798   custom_element_properties[EP_PROTECTED] =
7799     (custom_element.access_protected != 0 &&
7800      custom_element_properties[EP_ACCESSIBLE]);
7801
7802   /* set walk-to-object property from checkbox and selectbox */
7803   custom_element_properties[EP_DIGGABLE] = FALSE;
7804   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
7805   custom_element_properties[EP_DROPPABLE] = FALSE;
7806   custom_element_properties[EP_THROWABLE] = FALSE;
7807   custom_element_properties[EP_PUSHABLE] = FALSE;
7808   custom_element_properties[custom_element.walk_to_action] =
7809     custom_element_properties[EP_WALK_TO_OBJECT];
7810
7811   /* set smash property from checkbox and selectbox */
7812   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
7813   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
7814   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
7815   custom_element_properties[custom_element.smash_targets] =
7816     custom_element_properties[EP_CAN_SMASH];
7817
7818   /* set deadliness property from checkbox and selectbox */
7819   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
7820   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
7821   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
7822   custom_element_properties[EP_DONT_TOUCH] = FALSE;
7823   custom_element_properties[custom_element.deadliness] =
7824     custom_element_properties[EP_DEADLY];
7825
7826   /* ---------- element settings: advanced (custom elements) --------------- */
7827
7828   /* set player change event from checkbox and selectbox */
7829   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
7830   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
7831   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
7832   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
7833   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
7834   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
7835   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
7836   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
7837   custom_element_change_events[CE_SWITCHED] = FALSE;
7838   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
7839   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
7840   custom_element_change_events[CE_BLOCKED] = FALSE;
7841   custom_element_change_events[CE_IMPACT] = FALSE;
7842   custom_element_change_events[CE_SMASHED] = FALSE;
7843   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
7844   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
7845   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
7846   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
7847   custom_element_change_events[custom_element_change.direct_action] =
7848     custom_element_change_events[CE_BY_DIRECT_ACTION];
7849
7850   /* set other element action change event from checkbox and selectbox */
7851   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
7852   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
7853   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
7854   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
7855   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
7856   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
7857   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
7858   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
7859   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
7860   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
7861   custom_element_change_events[CE_TOUCHING_X] = FALSE;
7862   custom_element_change_events[CE_HITTING_X] = FALSE;
7863   custom_element_change_events[CE_DIGGING_X] = FALSE;
7864   custom_element_change_events[CE_HIT_BY_X] = FALSE;
7865   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
7866   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
7867   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
7868   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
7869   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
7870   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
7871   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
7872   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
7873   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
7874   custom_element_change_events[custom_element_change.other_action] =
7875     custom_element_change_events[CE_BY_OTHER_ACTION];
7876
7877   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
7878     SET_PROPERTY(element, i, custom_element_properties[i]);
7879
7880   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
7881     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
7882
7883   /* copy change events also to special level editor variable */
7884   custom_element = element_info[element];
7885   custom_element_change = *element_info[element].change;
7886 }
7887
7888 static void CopyGroupElementPropertiesToGame(int element)
7889 {
7890   /* mark that this group element has been modified */
7891   custom_element.modified_settings = TRUE;
7892   level.changed = TRUE;
7893
7894   if (level.use_custom_template)
7895     AskToCopyAndModifyLevelTemplate();
7896
7897   element_info[element] = custom_element;
7898   *element_info[element].group = group_element_info;
7899 }
7900
7901 static void CopyClassicElementPropertiesToGame(int element)
7902 {
7903   if (ELEM_IS_PLAYER(element) || COULD_MOVE_INTO_ACID(element))
7904     setMoveIntoAcidProperty(&level, element,
7905                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
7906
7907   if (MAYBE_DONT_COLLIDE_WITH(element))
7908     setDontCollideWithProperty(&level, element,
7909                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
7910 }
7911
7912 static void CopyElementPropertiesToGame(int element)
7913 {
7914   if (IS_CUSTOM_ELEMENT(element))
7915     CopyCustomElementPropertiesToGame(element);
7916   else if (IS_GROUP_ELEMENT(element))
7917     CopyGroupElementPropertiesToGame(element);
7918   else
7919     CopyClassicElementPropertiesToGame(element);
7920 }
7921
7922 void CheckElementDescriptions()
7923 {
7924   int i;
7925
7926   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
7927     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
7928       Error(ERR_WARN, "no element description file for element '%s'",
7929             EL_NAME(i));
7930 }
7931
7932 static int getMaxEdFieldX(boolean has_scrollbar)
7933 {
7934   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
7935   int sxsize = SXSIZE - scrollbar_width;
7936   int max_ed_fieldx = sxsize / ed_tilesize;
7937
7938   return max_ed_fieldx;
7939 }
7940
7941 static int getMaxEdFieldY(boolean has_scrollbar)
7942 {
7943   int infotext_height = INFOTEXT_YSIZE_FULL;
7944   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
7945   int sysize = SYSIZE - scrollbar_height - infotext_height;
7946   int max_ed_fieldy = sysize / ed_tilesize;
7947
7948   return max_ed_fieldy;
7949 }
7950
7951 void InitZoomLevelSettings()
7952 {
7953   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
7954   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
7955 }
7956
7957 void DrawLevelEd()
7958 {
7959   int fade_mask = REDRAW_FIELD;
7960
7961   FadeSoundsAndMusic();
7962
7963   if (CheckIfGlobalBorderHasChanged())
7964     fade_mask = REDRAW_ALL;
7965
7966   FadeOut(fade_mask);
7967
7968   /* needed if different viewport properties defined for editor */
7969   ChangeViewportPropertiesIfNeeded();
7970
7971   ClearField();
7972
7973   InitZoomLevelSettings();
7974
7975   OpenDoor(DOOR_OPEN_1 | DOOR_OPEN_2 | DOOR_NO_DELAY);
7976
7977 #if DEBUG
7978   CheckElementDescriptions();
7979 #endif
7980
7981   if (level_editor_test_game)
7982   {
7983     CopyPlayfield(level.field, Feld);
7984     CopyPlayfield(FieldBackup, level.field);
7985
7986     level_editor_test_game = FALSE;
7987   }
7988   else
7989   {
7990     edit_mode = ED_MODE_DRAWING;
7991     edit_mode_levelinfo = ED_MODE_LEVELINFO_LEVEL;
7992     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
7993
7994     ResetUndoBuffer();
7995
7996     level_xpos = -1;
7997     level_ypos = -1;
7998   }
7999
8000   /* needed for gadgets drawn on background (like palette scrollbar) */
8001   SetDoorBackgroundImage(IMG_UNDEFINED);
8002
8003   /* copy default editor door content to main double buffer */
8004   BlitBitmap(graphic_info[IMG_BACKGROUND_PALETTE].bitmap, drawto,
8005              graphic_info[IMG_BACKGROUND_PALETTE].src_x,
8006              graphic_info[IMG_BACKGROUND_PALETTE].src_y,
8007              MIN(DXSIZE, graphic_info[IMG_BACKGROUND_PALETTE].width),
8008              MIN(DYSIZE, graphic_info[IMG_BACKGROUND_PALETTE].height),
8009              DX, DY);
8010
8011   /* draw bigger door */
8012   DrawSpecialEditorDoor();
8013
8014   /* draw new control window */
8015   BlitBitmap(graphic_info[IMG_BACKGROUND_TOOLBOX].bitmap, drawto,
8016              graphic_info[IMG_BACKGROUND_TOOLBOX].src_x,
8017              graphic_info[IMG_BACKGROUND_TOOLBOX].src_y,
8018              MIN(EXSIZE, graphic_info[IMG_BACKGROUND_TOOLBOX].width),
8019              MIN(EYSIZE, graphic_info[IMG_BACKGROUND_TOOLBOX].height),
8020              EX, EY);
8021
8022   // redraw_mask |= REDRAW_ALL;
8023
8024   FreeLevelEditorGadgets();
8025   CreateLevelEditorGadgets();
8026
8027   ReinitializeElementList();            /* update dynamic level element list */
8028   ReinitializeElementListButtons();     /* custom element may look different */
8029
8030   InitElementPropertiesGfxElement();
8031
8032   UnmapAllGadgets();
8033   MapControlButtons();
8034
8035   DrawEditModeWindow();
8036
8037   DrawMaskedBorder(fade_mask);
8038
8039   FadeIn(fade_mask);
8040
8041   /* copy actual editor door content to door double buffer for OpenDoor() */
8042   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
8043 }
8044
8045 static void AdjustDrawingAreaGadgets()
8046 {
8047   int ed_xsize = lev_fieldx + 2;
8048   int ed_ysize = lev_fieldy + 2;
8049   int max_ed_fieldx = MAX_ED_FIELDX;
8050   int max_ed_fieldy = MAX_ED_FIELDY;
8051   boolean horizontal_scrollbar_needed;
8052   boolean vertical_scrollbar_needed;
8053   int x, y, width, height;
8054
8055   /* check if we need any scrollbars */
8056   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
8057   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
8058
8059   /* check if we have a smaller editor field because of scrollbars */
8060   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
8061   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
8062
8063   /* check again if we now need more scrollbars because of less space */
8064   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
8065   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
8066
8067   /* check if editor field gets even smaller after adding new scrollbars */
8068   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
8069   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
8070
8071   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
8072   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
8073
8074   x = SX + ed_fieldx * ed_tilesize;
8075   y = SY + ed_fieldy * ed_tilesize;
8076
8077   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
8078   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
8079
8080   /* adjust drawing area gadget */
8081   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
8082                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
8083                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
8084                GDI_END);
8085
8086   /* adjust horizontal scrollbar gadgets */
8087   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
8088                GDI_Y, y,
8089                GDI_END);
8090   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
8091                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
8092                GDI_Y, y,
8093                GDI_END);
8094   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
8095                GDI_Y, y,
8096                GDI_WIDTH, width,
8097                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
8098                GDI_END);
8099
8100   /* adjust vertical scrollbar gadgets */
8101   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
8102                GDI_X, x,
8103                GDI_END);
8104   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
8105                GDI_X, x,
8106                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
8107                GDI_END);
8108   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
8109                GDI_X, x,
8110                GDI_HEIGHT, height,
8111                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
8112                GDI_END);
8113 }
8114
8115 static void AdjustLevelScrollPosition()
8116 {
8117   if (level_xpos < -1)
8118     level_xpos = -1;
8119   if (level_xpos > lev_fieldx - ed_fieldx + 1)
8120     level_xpos = lev_fieldx - ed_fieldx + 1;
8121   if (lev_fieldx < ed_fieldx - 2)
8122     level_xpos = -1;
8123
8124   if (level_ypos < -1)
8125     level_ypos = -1;
8126   if (level_ypos > lev_fieldy - ed_fieldy + 1)
8127     level_ypos = lev_fieldy - ed_fieldy + 1;
8128   if (lev_fieldy < ed_fieldy - 2)
8129     level_ypos = -1;
8130 }
8131
8132 static void AdjustEditorScrollbar(int id)
8133 {
8134   struct GadgetInfo *gi = level_editor_gadget[id];
8135   int items_max, items_visible, item_position;
8136
8137   if (id == GADGET_ID_SCROLL_HORIZONTAL)
8138   {
8139     items_max = MAX(lev_fieldx + 2, ed_fieldx);
8140     items_visible = ed_fieldx;
8141     item_position = level_xpos + 1;
8142   }
8143   else
8144   {
8145     items_max = MAX(lev_fieldy + 2, ed_fieldy);
8146     items_visible = ed_fieldy;
8147     item_position = level_ypos + 1;
8148   }
8149
8150   if (item_position > items_max - items_visible)
8151     item_position = items_max - items_visible;
8152
8153   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
8154                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
8155 }
8156
8157 static void AdjustElementListScrollbar()
8158 {
8159   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
8160   int items_max, items_visible, item_position;
8161
8162   /* correct position of element list scrollbar */
8163   if (element_shift < 0)
8164     element_shift = 0;
8165   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
8166     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
8167
8168   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
8169   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
8170   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
8171
8172   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
8173                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8174                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
8175 }
8176
8177 static void ModifyEditorCounterValue(int counter_id, int new_value)
8178 {
8179   int *counter_value = counterbutton_info[counter_id].value;
8180   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
8181   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
8182
8183   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
8184
8185   if (counter_value != NULL)
8186     *counter_value = gi->textinput.number_value;
8187 }
8188
8189 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
8190 {
8191   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
8192   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
8193
8194   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
8195
8196   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
8197       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
8198   {
8199     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
8200     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
8201
8202     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
8203     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
8204                  GDI_END);
8205   }
8206 }
8207
8208 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
8209 {
8210   int gadget_id = selectbox_info[selectbox_id].gadget_id;
8211   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
8212   int new_index_value = setSelectboxValue(selectbox_id, new_value);
8213
8214   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
8215 }
8216
8217 static void ModifyEditorSelectboxOptions(int selectbox_id,
8218                                          struct ValueTextInfo *options)
8219 {
8220   int gadget_id = selectbox_info[selectbox_id].gadget_id;
8221   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
8222
8223   selectbox_info[selectbox_id].options = options;
8224
8225   /* set index to zero -- list may be shorter now (correct later, if needed) */
8226   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
8227                GDI_SELECTBOX_OPTIONS, options, GDI_END);
8228 }
8229
8230 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
8231 {
8232   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
8233   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
8234
8235   drawingarea_info[drawingarea_id].area_xsize = xsize;
8236   drawingarea_info[drawingarea_id].area_ysize = ysize;
8237
8238   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
8239 }
8240
8241 static void ModifyEditorElementList()
8242 {
8243   int i;
8244
8245   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
8246     return;
8247
8248   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
8249   {
8250     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
8251     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
8252     struct GadgetDesign *gd = &gi->deco.design;
8253     int element = editor_elements[element_shift + i];
8254     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
8255
8256     UnmapGadget(gi);
8257
8258     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
8259
8260     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
8261
8262     MapGadget(gi);
8263   }
8264 }
8265
8266 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
8267 {
8268   int graphic = el2edimg(element);
8269   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
8270
8271   if (pos->x == -1 &&
8272       pos->y == -1)
8273     return;
8274
8275   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
8276 }
8277
8278 static void ModifyDrawingElementButton(int element, int id)
8279 {
8280   struct GadgetInfo *gi = level_editor_gadget[id];
8281   Bitmap *deco_bitmap;
8282   int deco_x, deco_y;
8283   int tile_size = gi->deco.width;
8284
8285   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
8286
8287   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
8288 }
8289
8290 static void PickDrawingElement(int button, int element)
8291 {
8292   struct
8293   {
8294     int *new_element;
8295     struct XYTileSize *pos;
8296     int id;
8297   } de, drawing_elements[] =
8298   {
8299     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
8300     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
8301     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
8302   };
8303
8304   if (button < 1 || button > 3)
8305     return;
8306
8307   de = drawing_elements[button - 1];
8308
8309   *de.new_element = element;    // update global drawing element variable
8310
8311   DrawDrawingElementGraphic(element, de.pos);
8312   ModifyDrawingElementButton(element, de.id);
8313
8314   redraw_mask |= REDRAW_DOOR_1;
8315 }
8316
8317 static void RedrawDrawingElements()
8318 {
8319   PickDrawingElement(1, new_element1);
8320   PickDrawingElement(2, new_element2);
8321   PickDrawingElement(3, new_element3);
8322 }
8323
8324 static void DrawDrawingWindow()
8325 {
8326   stick_element_properties_window = FALSE;
8327
8328   SetMainBackgroundImage(IMG_UNDEFINED);
8329   ClearField();
8330
8331   UnmapLevelEditorFieldGadgets();
8332   UnmapLevelEditorToolboxCustomGadgets();
8333
8334   AdjustDrawingAreaGadgets();
8335   AdjustLevelScrollPosition();
8336   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
8337   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
8338
8339   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
8340
8341   MapMainDrawingArea();
8342   MapLevelEditorToolboxDrawingGadgets();
8343 }
8344
8345 static int getTabulatorBarWidth()
8346 {
8347   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
8348   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
8349
8350   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
8351 }
8352
8353 static int getTabulatorBarHeight()
8354 {
8355   return ED_TAB_BAR_HEIGHT;
8356 }
8357
8358 static void DrawLevelInfoTabulatorGadgets()
8359 {
8360   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELINFO_LEVEL];
8361   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
8362   int gd_x = gd->x + gd_gi1->border.width / 2;
8363   int gd_y = gd->y + gd_gi1->height - 1;
8364   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
8365   int id_first = ED_TAB_BUTTON_ID_LEVELINFO_FIRST;
8366   int id_last  = ED_TAB_BUTTON_ID_LEVELINFO_LAST;
8367   int i;
8368
8369   for (i = id_first; i <= id_last; i++)
8370   {
8371     int gadget_id = textbutton_info[i].gadget_id;
8372     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
8373     boolean active = (i != edit_mode_levelinfo);
8374
8375     /* draw background line below tabulator button */
8376     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
8377
8378     /* draw solid line below inactive tabulator buttons */
8379     if (!active && tab_color != BLACK_PIXEL)    /* black => transparent */
8380       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
8381                     ED_GADGET_TINY_DISTANCE, tab_color);
8382
8383     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
8384     MapTextbuttonGadget(i);
8385   }
8386
8387   /* draw little border line below tabulator buttons */
8388   if (tab_color != BLACK_PIXEL)                 /* black => transparent */
8389     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
8390                   ED_GADGET_TINY_DISTANCE,
8391                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
8392 }
8393
8394 static void DrawPropertiesTabulatorGadgets()
8395 {
8396   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
8397   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
8398   int gd_x = gd->x + gd_gi1->border.width / 2;
8399   int gd_y = gd->y + gd_gi1->height - 1;
8400   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
8401   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
8402   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
8403   int i;
8404
8405   /* draw two config tabulators for player elements */
8406   if (ELEM_IS_PLAYER(properties_element))
8407     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
8408
8409   /* draw two config and one "change" tabulator for custom elements */
8410   if (IS_CUSTOM_ELEMENT(properties_element))
8411     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
8412
8413   for (i = id_first; i <= id_last; i++)
8414   {
8415     int gadget_id = textbutton_info[i].gadget_id;
8416     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
8417     boolean active = (i != edit_mode_properties);
8418
8419     /* use "config 1" and "config 2" instead of "config" for players and CEs */
8420     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
8421         (ELEM_IS_PLAYER(properties_element) ||
8422          IS_CUSTOM_ELEMENT(properties_element)))
8423       continue;
8424
8425     /* draw background line below tabulator button */
8426     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
8427
8428     /* draw solid line below inactive tabulator buttons */
8429     if (!active && tab_color != BLACK_PIXEL)    /* black => transparent */
8430       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
8431                     ED_GADGET_TINY_DISTANCE, tab_color);
8432
8433     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
8434     MapTextbuttonGadget(i);
8435   }
8436
8437   /* draw little border line below tabulator buttons */
8438   if (tab_color != BLACK_PIXEL)                 /* black => transparent */
8439     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
8440                   ED_GADGET_TINY_DISTANCE,
8441                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
8442 }
8443
8444 static void DrawLevelInfoLevel()
8445 {
8446   int i;
8447
8448   /* draw counter gadgets */
8449   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
8450     MapCounterButtons(i);
8451
8452   /* draw selectbox gadgets */
8453   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
8454     MapSelectboxGadget(i);
8455
8456   /* draw text input gadgets */
8457   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
8458     MapTextInputGadget(i);
8459 }
8460
8461 static void DrawLevelInfoEditor()
8462 {
8463   int i;
8464
8465   /* draw counter gadgets */
8466   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
8467     MapCounterButtons(i);
8468
8469   /* draw checkbutton gadgets */
8470   for (i=ED_CHECKBUTTON_ID_EDITOR_FIRST; i<= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
8471     MapCheckbuttonGadget(i);
8472
8473   /* draw radiobutton gadgets */
8474   for (i=ED_RADIOBUTTON_ID_EDITOR_FIRST; i<= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
8475     MapRadiobuttonGadget(i);
8476
8477   /* draw drawing area */
8478   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
8479
8480   /* draw textbutton gadgets */
8481   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
8482 }
8483
8484 static void DrawLevelInfoWindow()
8485 {
8486   char *text = "Global Settings";
8487   int font_nr = FONT_TITLE_1;
8488   struct MenuPosInfo *pos = &editor.settings.headline;
8489   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
8490   int sy = SY + pos->y;
8491
8492   stick_element_properties_window = FALSE;
8493
8494   UnmapLevelEditorFieldGadgets();
8495
8496   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
8497   ClearField();
8498
8499   DrawText(sx, sy, text, font_nr);
8500
8501   DrawLevelInfoTabulatorGadgets();
8502
8503   if (edit_mode_levelinfo == ED_MODE_LEVELINFO_LEVEL)
8504     DrawLevelInfoLevel();
8505   else  /* (edit_mode_levelinfo == ED_MODE_LEVELINFO_EDITOR) */
8506     DrawLevelInfoEditor();
8507 }
8508
8509 static void DrawCustomContentArea()
8510 {
8511   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
8512   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
8513   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
8514   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
8515   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
8516   int xoffset = ED_GADGET_SPACE_DISTANCE;
8517
8518   /* add distance for potential left text (without drawing area border) */
8519   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
8520
8521   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
8522
8523   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
8524 }
8525
8526 static void DrawCustomChangeContentArea()
8527 {
8528   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
8529   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
8530   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
8531   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
8532   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
8533   int xoffset = ED_GADGET_SPACE_DISTANCE;
8534
8535   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
8536
8537   MapDrawingArea(id);
8538 }
8539
8540 static void RemoveElementContentArea(int id, int font_height)
8541 {
8542   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
8543
8544   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
8545                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
8546                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
8547                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
8548                  ED_GADGET_TEXT_DISTANCE + font_height);
8549 }
8550
8551 static void DrawYamYamContentAreas()
8552 {
8553   int font_nr = FONT_TEXT_1;
8554   int font_height = getFontHeight(font_nr);
8555   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
8556   int yoffset = (tilesize - font_height) / 2;
8557   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
8558   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
8559   int i;
8560
8561   /* display counter to choose number of element content areas */
8562   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
8563
8564   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
8565   {
8566     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
8567
8568     if (i < level.num_yamyam_contents)
8569     {
8570       MapDrawingArea(id);
8571     }
8572     else
8573     {
8574       UnmapDrawingArea(id);
8575
8576       /* delete content areas in case of reducing number of them */
8577       RemoveElementContentArea(id, font_height);
8578     }
8579   }
8580
8581   DrawText(x, y + 0 * tilesize, "content", font_nr);
8582   DrawText(x, y + 1 * tilesize, "when",    font_nr);
8583   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
8584 }
8585
8586 static void DrawMagicBallContentAreas()
8587 {
8588   int font_nr = FONT_TEXT_1;
8589   int font_height = getFontHeight(font_nr);
8590   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
8591   int yoffset = (tilesize - font_height) / 2;
8592   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
8593   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
8594   int i;
8595
8596   /* display counter to choose number of element content areas */
8597   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
8598
8599   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
8600   {
8601     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
8602
8603     if (i < level.num_ball_contents)
8604     {
8605       MapDrawingArea(id);
8606     }
8607     else
8608     {
8609       UnmapDrawingArea(id);
8610
8611       /* delete content areas in case of reducing number of them */
8612       RemoveElementContentArea(id, font_height);
8613     }
8614   }
8615
8616   DrawText(x, y + 0 * tilesize, "generated", font_nr);
8617   DrawText(x, y + 1 * tilesize, "when",      font_nr);
8618   DrawText(x, y + 2 * tilesize, "active",    font_nr);
8619 }
8620
8621 static void DrawAndroidElementArea(int element)
8622 {
8623   int id = ED_DRAWING_ID_ANDROID_CONTENT;
8624   int num_elements = level.num_android_clone_elements;
8625   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
8626   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
8627   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
8628   int xsize = MAX_ANDROID_ELEMENTS;
8629   int ysize = 1;
8630
8631   /* display counter to choose number of element areas */
8632   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
8633
8634   if (drawingarea_info[id].text_left != NULL)
8635     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8636
8637   UnmapDrawingArea(id);
8638
8639   ModifyEditorDrawingArea(id, num_elements, 1);
8640
8641   /* delete content areas in case of reducing number of them */
8642   DrawBackground(sx, sy,
8643                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
8644                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
8645
8646   MapDrawingArea(id);
8647 }
8648
8649 static void DrawGroupElementArea(int element)
8650 {
8651   int id = ED_DRAWING_ID_GROUP_CONTENT;
8652   int num_elements = group_element_info.num_elements;
8653   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
8654   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
8655   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
8656   int xsize = MAX_ELEMENTS_IN_GROUP;
8657   int ysize = 1;
8658
8659   if (drawingarea_info[id].text_left != NULL)
8660     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8661
8662   UnmapDrawingArea(id);
8663
8664   ModifyEditorDrawingArea(id, num_elements, 1);
8665
8666   /* delete content areas in case of reducing number of them */
8667   DrawBackground(sx, sy,
8668                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
8669                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
8670
8671   MapDrawingArea(id);
8672 }
8673
8674 static void DrawPlayerInitialInventoryArea(int element)
8675 {
8676   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
8677   int player_nr = GET_PLAYER_NR(element);
8678   int num_elements = level.initial_inventory_size[player_nr];
8679   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
8680   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
8681   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
8682   int xsize = MAX_INITIAL_INVENTORY_SIZE;
8683   int ysize = 1;
8684
8685   /* determine horizontal position to the right of specified gadget */
8686   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
8687     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
8688           ED_DRAWINGAREA_TEXT_DISTANCE);
8689
8690   /* determine horizontal offset for leading text */
8691   if (drawingarea_info[id].text_left != NULL)
8692     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8693
8694   UnmapDrawingArea(id);
8695
8696   ModifyEditorDrawingArea(id, num_elements, 1);
8697
8698   /* delete content areas in case of reducing number of them */
8699   DrawBackground(sx, sy,
8700                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
8701                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
8702
8703   MapDrawingArea(id);
8704 }
8705
8706 static void DrawEnvelopeTextArea(int envelope_nr)
8707 {
8708   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
8709   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
8710
8711   UnmapGadget(gi);
8712   DrawBackground(gi->x, gi->y, gi->width, gi->height);
8713
8714   if (envelope_nr != -1)
8715     textarea_info[id].value = level.envelope[envelope_nr].text;
8716
8717   ModifyGadget(gi, GDI_AREA_SIZE,
8718                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
8719                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
8720                GDI_END);
8721
8722   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
8723 }
8724
8725 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
8726 {
8727   DrawText(SX + xpos, SY + ypos, text, font_nr);
8728 }
8729
8730 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
8731                                            int xpos, int ypos)
8732 {
8733   int font_width = getFontWidth(font_nr);
8734   int font_height = getFontHeight(font_nr);
8735   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
8736   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
8737
8738   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
8739                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
8740                       TRUE, FALSE, FALSE);
8741 }
8742
8743 static void DrawPropertiesInfo()
8744 {
8745   static struct
8746   {
8747     int value;
8748     char *text;
8749   }
8750   properties[] =
8751   {
8752     /* configurable properties */
8753
8754     { EP_WALKABLE_OVER,         "- player can walk over it"             },
8755     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
8756     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
8757     { EP_PASSABLE_OVER,         "- player can pass over it"             },
8758     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
8759     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
8760     { EP_PROTECTED,             "- player is protected by it"           },
8761
8762     { EP_DIGGABLE,              "- can be digged away"                  },
8763     { EP_COLLECTIBLE,           "- can be collected"                    },
8764     { EP_DROPPABLE,             "- can be dropped after collecting"     },
8765     { EP_THROWABLE,             "- can be thrown after collecting"      },
8766     { EP_PUSHABLE,              "- can be pushed"                       },
8767
8768     { EP_CAN_FALL,              "- can fall"                            },
8769     { EP_CAN_MOVE,              "- can move"                            },
8770
8771     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
8772 #if 0
8773     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
8774 #endif
8775     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
8776
8777     { EP_SLIPPERY,              "- slippery for falling elements"       },
8778     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
8779
8780     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
8781     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
8782     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
8783     { EP_DONT_TOUCH,            "- deadly when touching"                },
8784
8785     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
8786
8787     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
8788     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
8789     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
8790
8791     { EP_CAN_CHANGE,            "- can change to other element"         },
8792
8793     /* pre-defined properties */
8794     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
8795     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
8796     { EP_SWITCHABLE,            "- can be switched"                     },
8797 #if 0
8798     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
8799 #endif
8800
8801     { -1,                       NULL                                    }
8802   };
8803   char *filename = getElementDescriptionFilename(properties_element);
8804   char *percentage_text = "In this level: ";
8805   char *properties_text = "Standard properties: ";
8806   char *description_text = "Description:";
8807   char *no_description_text = "No description available.";
8808   char *none_text = "None";
8809   float percentage;
8810   int num_elements_in_level;
8811   int num_standard_properties = 0;
8812   int font1_nr = FONT_TEXT_1;
8813   int font2_nr = FONT_TEXT_2;
8814   int font1_width = getFontWidth(font1_nr);
8815   int font1_height = getFontHeight(font1_nr);
8816   int font2_height = getFontHeight(font2_nr);
8817   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
8818   int font2_yoffset = (font1_height - font2_height) / 2;
8819   int percentage_text_len = strlen(percentage_text) * font1_width;
8820   int properties_text_len = strlen(properties_text) * font1_width;
8821   int xpos = ED_ELEMENT_SETTINGS_X(0);
8822   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
8823   int i, x, y;
8824
8825   if (setup.editor.show_element_token)
8826   {
8827     int font3_nr = FONT_TEXT_3;
8828     int font3_height = getFontHeight(font3_nr);
8829
8830     DrawTextF(xpos, ypos, font3_nr,
8831               "[%s]", element_info[properties_element].token_name);
8832
8833     ypos += 2 * font3_height;
8834   }
8835
8836   /* ----- print number of elements / percentage of this element in level */
8837
8838   num_elements_in_level = 0;
8839   for (y = 0; y < lev_fieldy; y++)
8840     for (x = 0; x < lev_fieldx; x++)
8841       if (Feld[x][y] == properties_element)
8842         num_elements_in_level++;
8843   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
8844
8845   DrawTextS(xpos, ypos, font1_nr, percentage_text);
8846
8847   if (num_elements_in_level > 0)
8848     DrawTextF(xpos + percentage_text_len, ypos + font2_yoffset, font2_nr,
8849               "%d (%.2f %%)", num_elements_in_level, percentage);
8850   else
8851     DrawTextF(xpos + percentage_text_len, ypos + font2_yoffset, font2_nr,
8852               none_text);
8853
8854   ypos += 2 * MAX(font1_height, font2_height);
8855
8856   /* ----- print standard properties of this element */
8857
8858   DrawTextS(xpos, ypos, font1_nr, properties_text);
8859
8860   ypos += line1_height;
8861
8862   for (i = 0; properties[i].value != -1; i++)
8863   {
8864     if (!HAS_PROPERTY(properties_element, properties[i].value))
8865       continue;
8866
8867     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
8868
8869     ypos += font2_height;
8870
8871     num_standard_properties++;
8872   }
8873
8874   if (num_standard_properties == 0)
8875   {
8876     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
8877               font2_nr, none_text);
8878
8879     ypos -= (line1_height - font1_height);
8880   }
8881
8882   ypos += MAX(font1_height, font2_height);
8883
8884   /* ----- print special description of this element */
8885
8886   PrintInfoText(description_text, font1_nr, xpos, ypos);
8887
8888   ypos += line1_height;
8889
8890   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
8891     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
8892 }
8893
8894 #define TEXT_COLLECTING         "Score for collecting"
8895 #define TEXT_SMASHING           "Score for smashing"
8896 #define TEXT_SLURPING           "Score for slurping robot"
8897 #define TEXT_CRACKING           "Score for cracking"
8898 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
8899 #define TEXT_DURATION           "Duration when activated"
8900 #define TEXT_BALL_DELAY         "Element generation delay"
8901 #define TEXT_MOVE_SPEED         "Speed of android moving"
8902 #define TEXT_CLONE_SPEED        "Speed of android cloning"
8903 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
8904 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
8905 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
8906 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
8907 #define TEXT_TIME_BONUS         "Extra time to solve level"
8908
8909 static struct
8910 {
8911   int element;
8912   int *value;
8913   char *text;
8914 } elements_with_counter[] =
8915 {
8916   { EL_EMERALD,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
8917   { EL_BD_DIAMOND,      &level.score[SC_EMERALD],       TEXT_COLLECTING },
8918   { EL_EMERALD_YELLOW,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
8919   { EL_EMERALD_RED,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
8920   { EL_EMERALD_PURPLE,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
8921   { EL_SP_INFOTRON,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
8922   { EL_DIAMOND,         &level.score[SC_DIAMOND],       TEXT_COLLECTING },
8923   { EL_CRYSTAL,         &level.score[SC_CRYSTAL],       TEXT_COLLECTING },
8924   { EL_PEARL,           &level.score[SC_PEARL],         TEXT_COLLECTING },
8925   { EL_BUG,             &level.score[SC_BUG],           TEXT_SMASHING   },
8926   { EL_BUG_RIGHT,       &level.score[SC_BUG],           TEXT_SMASHING   },
8927   { EL_BUG_UP,          &level.score[SC_BUG],           TEXT_SMASHING   },
8928   { EL_BUG_LEFT,        &level.score[SC_BUG],           TEXT_SMASHING   },
8929   { EL_BUG_DOWN,        &level.score[SC_BUG],           TEXT_SMASHING   },
8930   { EL_BD_BUTTERFLY,    &level.score[SC_BUG],           TEXT_SMASHING   },
8931   { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_BUG],         TEXT_SMASHING   },
8932   { EL_BD_BUTTERFLY_UP,   &level.score[SC_BUG],         TEXT_SMASHING   },
8933   { EL_BD_BUTTERFLY_LEFT, &level.score[SC_BUG],         TEXT_SMASHING   },
8934   { EL_BD_BUTTERFLY_DOWN, &level.score[SC_BUG],         TEXT_SMASHING   },
8935   { EL_SP_ELECTRON,     &level.score[SC_BUG],           TEXT_SMASHING   },
8936   { EL_SPACESHIP,       &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8937   { EL_SPACESHIP_RIGHT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8938   { EL_SPACESHIP_UP,    &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8939   { EL_SPACESHIP_LEFT,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8940   { EL_SPACESHIP_DOWN,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8941   { EL_BD_FIREFLY,      &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8942   { EL_BD_FIREFLY_RIGHT,&level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8943   { EL_BD_FIREFLY_UP,   &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8944   { EL_BD_FIREFLY_LEFT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8945   { EL_BD_FIREFLY_DOWN, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8946   { EL_SP_SNIKSNAK,     &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8947   { EL_YAMYAM,          &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8948   { EL_YAMYAM_LEFT,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8949   { EL_YAMYAM_RIGHT,    &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8950   { EL_YAMYAM_UP,       &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8951   { EL_YAMYAM_DOWN,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8952   { EL_DARK_YAMYAM,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8953   { EL_ROBOT,           &level.score[SC_ROBOT],         TEXT_SMASHING   },
8954   { EL_PACMAN,          &level.score[SC_PACMAN],        TEXT_SMASHING   },
8955   { EL_PACMAN_RIGHT,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
8956   { EL_PACMAN_UP,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
8957   { EL_PACMAN_LEFT,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
8958   { EL_PACMAN_DOWN,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
8959   { EL_NUT,             &level.score[SC_NUT],           TEXT_CRACKING   },
8960   { EL_DYNAMITE,        &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
8961   { EL_EM_DYNAMITE,     &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
8962   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],TEXT_COLLECTING },
8963   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],TEXT_COLLECTING },
8964   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],TEXT_COLLECTING },
8965   { EL_SHIELD_NORMAL,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
8966   { EL_SHIELD_DEADLY,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
8967   { EL_EXTRA_TIME,      &level.extra_time_score,        TEXT_COLLECTING },
8968   { EL_KEY_1,           &level.score[SC_KEY],           TEXT_COLLECTING },
8969   { EL_KEY_2,           &level.score[SC_KEY],           TEXT_COLLECTING },
8970   { EL_KEY_3,           &level.score[SC_KEY],           TEXT_COLLECTING },
8971   { EL_KEY_4,           &level.score[SC_KEY],           TEXT_COLLECTING },
8972   { EL_EM_KEY_1,        &level.score[SC_KEY],           TEXT_COLLECTING },
8973   { EL_EM_KEY_2,        &level.score[SC_KEY],           TEXT_COLLECTING },
8974   { EL_EM_KEY_3,        &level.score[SC_KEY],           TEXT_COLLECTING },
8975   { EL_EM_KEY_4,        &level.score[SC_KEY],           TEXT_COLLECTING },
8976   { EL_EMC_KEY_5,       &level.score[SC_KEY],           TEXT_COLLECTING },
8977   { EL_EMC_KEY_6,       &level.score[SC_KEY],           TEXT_COLLECTING },
8978   { EL_EMC_KEY_7,       &level.score[SC_KEY],           TEXT_COLLECTING },
8979   { EL_EMC_KEY_8,       &level.score[SC_KEY],           TEXT_COLLECTING },
8980   { EL_DC_KEY_WHITE,    &level.score[SC_KEY],           TEXT_COLLECTING },
8981   { EL_AMOEBA_WET,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
8982   { EL_AMOEBA_DRY,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
8983   { EL_AMOEBA_FULL,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
8984   { EL_BD_AMOEBA,       &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
8985   { EL_EMC_DRIPPER,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
8986   { EL_MAGIC_WALL,      &level.time_magic_wall,         TEXT_DURATION   },
8987   { EL_BD_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
8988   { EL_DC_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
8989   { EL_ROBOT_WHEEL,     &level.time_wheel,              TEXT_DURATION   },
8990
8991   { EL_TIMEGATE_SWITCH,   &level.time_timegate,         TEXT_DURATION   },
8992   { EL_DC_TIMEGATE_SWITCH,&level.time_timegate,         TEXT_DURATION   },
8993   { EL_LIGHT_SWITCH,    &level.time_light,              TEXT_DURATION   },
8994   { EL_LIGHT_SWITCH_ACTIVE, &level.time_light,          TEXT_DURATION   },
8995   { EL_SHIELD_NORMAL,   &level.shield_normal_time,      TEXT_DURATION   },
8996   { EL_SHIELD_DEADLY,   &level.shield_deadly_time,      TEXT_DURATION   },
8997   { EL_EXTRA_TIME,      &level.extra_time,              TEXT_TIME_BONUS },
8998   { EL_TIME_ORB_FULL,   &level.time_orb_time,           TEXT_TIME_BONUS },
8999   { EL_GAME_OF_LIFE,    &level.game_of_life[0],         TEXT_GAME_OF_LIFE_1 },
9000   { EL_GAME_OF_LIFE,    &level.game_of_life[1],         TEXT_GAME_OF_LIFE_2 },
9001   { EL_GAME_OF_LIFE,    &level.game_of_life[2],         TEXT_GAME_OF_LIFE_3 },
9002   { EL_GAME_OF_LIFE,    &level.game_of_life[3],         TEXT_GAME_OF_LIFE_4 },
9003   { EL_BIOMAZE,         &level.biomaze[0],              TEXT_GAME_OF_LIFE_1 },
9004   { EL_BIOMAZE,         &level.biomaze[1],              TEXT_GAME_OF_LIFE_2 },
9005   { EL_BIOMAZE,         &level.biomaze[2],              TEXT_GAME_OF_LIFE_3 },
9006   { EL_BIOMAZE,         &level.biomaze[3],              TEXT_GAME_OF_LIFE_4 },
9007
9008   { EL_EMC_ANDROID,     &level.android_move_time,       TEXT_MOVE_SPEED },
9009   { EL_EMC_ANDROID,     &level.android_clone_time,      TEXT_CLONE_SPEED },
9010   { EL_EMC_MAGIC_BALL,  &level.ball_time,               TEXT_BALL_DELAY },
9011   { EL_EMC_LENSES,      &level.lenses_score,            TEXT_COLLECTING },
9012   { EL_EMC_MAGNIFIER,   &level.magnify_score,           TEXT_COLLECTING },
9013   { EL_SPRING,          &level.slurp_score,             TEXT_SLURPING   },
9014   { EL_EMC_LENSES,      &level.lenses_time,             TEXT_DURATION   },
9015   { EL_EMC_MAGNIFIER,   &level.magnify_time,            TEXT_DURATION   },
9016
9017   { -1,                 NULL,                           NULL            }
9018 };
9019
9020 static boolean checkPropertiesConfig(int element)
9021 {
9022   int i;
9023
9024   if (IS_GEM(element) ||
9025       IS_CUSTOM_ELEMENT(element) ||
9026       IS_GROUP_ELEMENT(element) ||
9027       IS_ENVELOPE(element) ||
9028       ELEM_IS_PLAYER(element) ||
9029       HAS_EDITOR_CONTENT(element) ||
9030       CAN_GROW(element) ||
9031       COULD_MOVE_INTO_ACID(element) ||
9032       MAYBE_DONT_COLLIDE_WITH(element) ||
9033       element == EL_SOKOBAN_OBJECT ||
9034       element == EL_SOKOBAN_FIELD_EMPTY ||
9035       element == EL_SOKOBAN_FIELD_FULL)
9036     return TRUE;
9037   else
9038     for (i = 0; elements_with_counter[i].element != -1; i++)
9039       if (elements_with_counter[i].element == element)
9040         return TRUE;
9041
9042   return FALSE;
9043 }
9044
9045 static void DrawPropertiesConfig()
9046 {
9047   boolean draw_footer_line = FALSE;
9048   int max_num_element_counters = 4;
9049   int num_element_counters = 0;
9050   int i;
9051
9052   if (!checkPropertiesConfig(properties_element))
9053   {
9054     int xpos = ED_ELEMENT_SETTINGS_X(0);
9055     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
9056
9057     PrintInfoText("No configuration options available.",
9058                   FONT_TEXT_1, xpos, ypos);
9059
9060     return;
9061   }
9062
9063   /* check if there are elements where a value can be chosen for */
9064   for (i = 0; elements_with_counter[i].element != -1; i++)
9065   {
9066     if (elements_with_counter[i].element == properties_element)
9067     {
9068       int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
9069
9070       counterbutton_info[counter_id].y =
9071         ED_ELEMENT_SETTINGS_YPOS(
9072                 (HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
9073                 (CAN_GROW(properties_element)                ? 1 : 0) +
9074                 (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
9075                 (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
9076                 (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
9077                 num_element_counters);
9078
9079       counterbutton_info[counter_id].value = elements_with_counter[i].value;
9080       counterbutton_info[counter_id].text_right= elements_with_counter[i].text;
9081
9082       if (properties_element == EL_GAME_OF_LIFE ||
9083           properties_element == EL_BIOMAZE)
9084       {
9085         counterbutton_info[counter_id].min_value = 0;   /* min neighbours */
9086         counterbutton_info[counter_id].max_value = 8;   /* max neighbours */
9087       }
9088       else
9089       {
9090         /* !!! CHANGE THIS FOR CERTAIN ELEMENTS !!! */
9091         counterbutton_info[counter_id].min_value = MIN_SCORE;
9092         counterbutton_info[counter_id].max_value = MAX_SCORE;
9093       }
9094
9095       MapCounterButtons(counter_id);
9096
9097       num_element_counters++;
9098       if (num_element_counters >= max_num_element_counters)
9099         break;
9100     }
9101   }
9102
9103   if (HAS_EDITOR_CONTENT(properties_element))
9104   {
9105     /* draw stickybutton gadget */
9106     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
9107
9108     if (IS_AMOEBOID(properties_element))
9109       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
9110     else if (properties_element == EL_YAMYAM ||
9111              properties_element == EL_YAMYAM_LEFT ||
9112              properties_element == EL_YAMYAM_RIGHT ||
9113              properties_element == EL_YAMYAM_UP ||
9114              properties_element == EL_YAMYAM_DOWN)
9115       DrawYamYamContentAreas();
9116     else if (properties_element == EL_EMC_MAGIC_BALL)
9117     {
9118       DrawMagicBallContentAreas();
9119
9120       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
9121       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_STATE);
9122     }
9123     else if (properties_element == EL_EMC_ANDROID)
9124       DrawAndroidElementArea(properties_element);
9125   }
9126
9127   if (ELEM_IS_PLAYER(properties_element))
9128   {
9129     int player_nr = GET_PLAYER_NR(properties_element);
9130
9131     /* these properties can be set for every player individually */
9132
9133     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
9134     {
9135       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
9136         &level.start_element[player_nr];
9137       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
9138         &level.artwork_element[player_nr];
9139       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
9140         &level.explosion_element[player_nr];
9141
9142       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
9143         &level.use_start_element[player_nr];
9144       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
9145         &level.use_artwork_element[player_nr];
9146       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
9147         &level.use_explosion_element[player_nr];
9148       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
9149         &level.initial_player_gravity[player_nr];
9150
9151       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
9152         &level.initial_player_stepsize[player_nr];
9153
9154       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
9155       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
9156                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
9157                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
9158       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
9159       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
9160       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
9161       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
9162       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
9163       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
9164       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
9165       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
9166       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
9167       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
9168
9169       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
9170       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
9171       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
9172
9173       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
9174     }
9175     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
9176     {
9177       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
9178         &level.initial_inventory_content[player_nr][0];
9179
9180       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
9181         &level.initial_inventory_size[player_nr];
9182
9183       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
9184         &level.use_initial_inventory[player_nr];
9185
9186       /* draw checkbutton gadgets */
9187       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
9188
9189       /* draw counter gadgets */
9190       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
9191
9192       /* draw drawing area gadgets */
9193       DrawPlayerInitialInventoryArea(properties_element);
9194     }
9195   }
9196
9197   if (IS_GEM(properties_element))
9198     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
9199
9200   if (properties_element == EL_EM_DYNAMITE)
9201     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
9202
9203   if (COULD_MOVE_INTO_ACID(properties_element) &&
9204       !ELEM_IS_PLAYER(properties_element) &&
9205       (!IS_CUSTOM_ELEMENT(properties_element) ||
9206        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
9207   {
9208     /* set position for checkbutton for "can move into acid" */
9209     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
9210       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
9211     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
9212       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 6 :
9213                        HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
9214
9215     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
9216   }
9217
9218   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
9219     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
9220
9221   if (properties_element == EL_SPRING)
9222     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
9223
9224   if (properties_element == EL_TIME_ORB_FULL)
9225     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
9226
9227   if (CAN_GROW(properties_element))
9228   {
9229     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
9230       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
9231
9232     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
9233   }
9234
9235   if (properties_element == EL_SOKOBAN_OBJECT ||
9236       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
9237       properties_element == EL_SOKOBAN_FIELD_FULL)
9238     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
9239
9240   if (IS_ENVELOPE(properties_element))
9241   {
9242     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
9243     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
9244     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
9245     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
9246     int envelope_nr = properties_element - EL_ENVELOPE_1;
9247
9248     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
9249     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
9250
9251     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
9252     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
9253
9254     /* display counter to choose size of envelope text area */
9255     MapCounterButtons(counter1_id);
9256     MapCounterButtons(counter2_id);
9257
9258     /* display checkbuttons to choose auto-wrap and alignment properties */
9259     MapCheckbuttonGadget(button1_id);
9260     MapCheckbuttonGadget(button2_id);
9261
9262     DrawEnvelopeTextArea(envelope_nr);
9263   }
9264
9265   if (IS_CUSTOM_ELEMENT(properties_element))
9266   {
9267     /* draw stickybutton gadget */
9268     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
9269
9270     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
9271     {
9272       /* draw checkbutton gadgets */
9273       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
9274            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
9275         MapCheckbuttonGadget(i);
9276
9277       /* draw counter gadgets */
9278       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
9279            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
9280         MapCounterButtons(i);
9281
9282       /* draw selectbox gadgets */
9283       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
9284            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
9285         MapSelectboxGadget(i);
9286
9287       /* draw textbutton gadgets */
9288       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
9289
9290       /* draw text input gadgets */
9291       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
9292
9293       /* draw drawing area gadgets */
9294       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
9295
9296       draw_footer_line = TRUE;
9297     }
9298     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
9299     {
9300       /* draw checkbutton gadgets */
9301       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
9302            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
9303         MapCheckbuttonGadget(i);
9304
9305       /* draw counter gadgets */
9306       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
9307            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
9308         MapCounterButtons(i);
9309
9310       /* draw selectbox gadgets */
9311       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
9312            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
9313         MapSelectboxGadget(i);
9314
9315       /* draw drawing area gadgets */
9316       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
9317       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
9318       DrawCustomContentArea();
9319     }
9320   }
9321   else if (IS_GROUP_ELEMENT(properties_element))
9322   {
9323     /* draw stickybutton gadget */
9324     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
9325
9326     /* draw checkbutton gadgets */
9327     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
9328     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
9329
9330     /* draw counter gadgets */
9331     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
9332
9333     /* draw selectbox gadgets */
9334     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
9335
9336     /* draw textbutton gadgets */
9337     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
9338
9339     /* draw drawing area gadgets */
9340     DrawGroupElementArea(properties_element);
9341
9342     /* draw text input gadgets */
9343     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
9344
9345     /* draw drawing area gadgets */
9346     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
9347
9348     draw_footer_line = TRUE;
9349   }
9350
9351   /* draw little footer border line above CE/GE use/save template gadgets */
9352   if (draw_footer_line)
9353   {
9354     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
9355     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
9356     int gd_x = gd->x + gd_gi1->border.width / 2;
9357     int gd_y = gd->y + gd_gi1->height - 1;
9358     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
9359
9360     if (tab_color != BLACK_PIXEL)               /* black => transparent */
9361       FillRectangle(drawto,
9362                     SX + ED_ELEMENT_SETTINGS_X(0),
9363                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
9364                     ED_TAB_BAR_HEIGHT,
9365                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
9366   }
9367 }
9368
9369 static void DrawPropertiesChangeDrawingAreas()
9370 {
9371   if (IS_CUSTOM_ELEMENT(properties_element))
9372   {
9373     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
9374     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
9375     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
9376
9377     DrawCustomChangeContentArea();
9378   }
9379
9380   redraw_mask |= REDRAW_FIELD;
9381 }
9382
9383 static void DrawPropertiesChange()
9384 {
9385   int i;
9386
9387   /* needed to initially set selectbox options for special action options */
9388   setSelectboxSpecialActionOptions();
9389
9390   /* draw stickybutton gadget */
9391   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
9392
9393   /* draw checkbutton gadgets */
9394   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
9395        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
9396     MapCheckbuttonGadget(i);
9397
9398   /* draw counter gadgets */
9399   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
9400        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
9401     MapCounterButtons(i);
9402
9403   /* draw selectbox gadgets */
9404   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
9405        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
9406     MapSelectboxGadget(i);
9407
9408   /* draw textbutton gadgets */
9409   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
9410        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
9411     MapTextbuttonGadget(i);
9412
9413   /* draw graphicbutton gadgets */
9414   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
9415        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
9416     MapGraphicbuttonGadget(i);
9417
9418   /* draw drawing area gadgets */
9419   DrawPropertiesChangeDrawingAreas();
9420 }
9421
9422 static void DrawEditorElementAnimation(int x, int y)
9423 {
9424   int graphic = el2img(properties_element);
9425   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
9426                custom_element.ce_value_fixed_initial :
9427                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
9428                custom_element.collect_score_initial : FrameCounter);
9429
9430   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
9431 }
9432
9433 static void DrawEditorElementName(int x, int y, int font_nr)
9434 {
9435   char *element_name = getElementInfoText(properties_element);
9436   int font_width = getFontWidth(font_nr);
9437   int font_height = getFontHeight(font_nr);
9438   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
9439   int max_chars_per_line = max_text_width / font_width;
9440   char buffer[max_chars_per_line + 1];
9441
9442   if (strlen(element_name) <= max_chars_per_line)
9443     DrawTextS(x, y, font_nr, element_name);
9444   else
9445   {
9446     int next_pos = max_chars_per_line;
9447
9448     strncpy(buffer, element_name, max_chars_per_line);
9449     buffer[max_chars_per_line] = '\0';
9450
9451     if (element_name[max_chars_per_line] == ' ')
9452       next_pos++;
9453     else
9454     {
9455       int i;
9456
9457       for (i = max_chars_per_line - 1; i >= 0; i--)
9458         if (buffer[i] == ' ')
9459           break;
9460
9461       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
9462       {
9463         buffer[i] = '\0';
9464         next_pos = i + 1;
9465       }
9466     }
9467
9468     DrawTextS(x, y - font_height / 2, font_nr, buffer);
9469
9470     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
9471     buffer[max_chars_per_line] = '\0';
9472
9473     DrawTextS(x, y + font_height / 2, font_nr, buffer);
9474   }
9475 }
9476
9477 static void DrawPropertiesWindow()
9478 {
9479   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
9480   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
9481   int border_size = gd->border_size;
9482   int font_nr = FONT_TEXT_1;
9483   int font_height = getFontHeight(font_nr);
9484   int xoffset = TILEX + element_border + 3 * border_size;
9485   int yoffset = (TILEY - font_height) / 2;
9486   int x1 = editor.settings.element_graphic.x + element_border;
9487   int y1 = editor.settings.element_graphic.y + element_border;
9488   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
9489             editor.settings.element_name.x);
9490   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
9491             editor.settings.element_name.y);
9492   char *text = "Element Settings";
9493   int font2_nr = FONT_TITLE_1;
9494   struct MenuPosInfo *pos = &editor.settings.headline;
9495   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
9496   int sy = SY + pos->y;
9497
9498   stick_element_properties_window = FALSE;
9499
9500   /* make sure that previous properties edit mode exists for this element */
9501   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
9502       !IS_CUSTOM_ELEMENT(properties_element))
9503     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
9504
9505   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
9506       !ELEM_IS_PLAYER(properties_element) &&
9507       !IS_CUSTOM_ELEMENT(properties_element))
9508     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
9509
9510   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
9511       (ELEM_IS_PLAYER(properties_element) ||
9512        IS_CUSTOM_ELEMENT(properties_element)))
9513     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
9514
9515   CopyElementPropertiesToEditor(properties_element);
9516
9517   UnmapLevelEditorFieldGadgets();
9518   UnmapLevelEditorToolboxDrawingGadgets();
9519   UnmapLevelEditorToolboxCustomGadgets();
9520
9521   if (IS_CUSTOM_ELEMENT(properties_element) ||
9522       IS_GROUP_ELEMENT(properties_element))
9523     MapLevelEditorToolboxCustomGadgets();
9524
9525   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
9526   ClearField();
9527
9528   DrawText(sx, sy, text, font2_nr);
9529
9530   FrameCounter = 0;     /* restart animation frame counter */
9531
9532   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
9533   DrawEditorElementAnimation(SX + x1, SY + y1);
9534   DrawEditorElementName(x2, y2, font_nr);
9535
9536   DrawPropertiesTabulatorGadgets();
9537
9538   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
9539     DrawPropertiesInfo();
9540   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
9541     DrawPropertiesChange();
9542   else  /* (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2]) */
9543     DrawPropertiesConfig();
9544 }
9545
9546 static void DrawPaletteWindow()
9547 {
9548   int i;
9549
9550   UnmapLevelEditorFieldGadgets();
9551
9552   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
9553   ClearField();
9554
9555   /* map buttons to select elements */
9556   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
9557     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
9558   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
9559   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
9560   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
9561 }
9562
9563 static void UpdateCustomElementGraphicGadgets()
9564 {
9565   int i;
9566
9567   InitElementPropertiesGfxElement();
9568
9569   ModifyEditorElementList();
9570   RedrawDrawingElements();
9571
9572   /* force redraw of all mapped drawing area gadgets */
9573   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
9574   {
9575     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
9576
9577     if (gi->mapped)
9578       MapDrawingArea(i);
9579   }
9580 }
9581
9582 static int getOpenDirectionFromTube(int element)
9583 {
9584   switch (element)
9585   {
9586     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
9587     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
9588     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
9589     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
9590     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
9591     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
9592     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
9593     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
9594     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
9595     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
9596     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
9597   }
9598
9599   return MV_NONE;
9600 }
9601
9602 static int getTubeFromOpenDirection(int direction)
9603 {
9604   switch (direction)
9605   {
9606     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
9607     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
9608     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
9609     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
9610     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
9611     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
9612     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
9613     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
9614     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
9615     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
9616     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
9617
9618     /* if only one direction, fall back to simple tube with that direction */
9619     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
9620     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
9621     case (MV_UP):                       return EL_TUBE_VERTICAL;
9622     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
9623   }
9624
9625   return EL_EMPTY;
9626 }
9627
9628 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
9629 {
9630   int element_new = getTubeFromOpenDirection(direction);
9631
9632   return (element_new != EL_EMPTY ? element_new : element_old);
9633 }
9634
9635 static int getOpenDirectionFromBelt(int element)
9636 {
9637   int belt_dir = getBeltDirFromBeltElement(element);
9638
9639   return (belt_dir == MV_LEFT ? MV_RIGHT :
9640           belt_dir == MV_RIGHT ? MV_LEFT :
9641           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
9642 }
9643
9644 static int getBeltFromNrAndOpenDirection(int nr, int direction)
9645 {
9646   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
9647                   direction == MV_RIGHT ? MV_LEFT :
9648                   direction == MV_HORIZONTAL ? MV_NONE : direction);
9649
9650   if (direction == MV_NONE)
9651     return EL_EMPTY;
9652
9653   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
9654 }
9655
9656 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
9657                                                  int element_old)
9658 {
9659   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
9660
9661   return (element_new != EL_EMPTY ? element_new : element_old);
9662 }
9663
9664 static int getOpenDirectionFromPool(int element)
9665 {
9666   switch (element)
9667   {
9668     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
9669     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
9670     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
9671     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
9672     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
9673     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
9674   }
9675
9676   return MV_NONE;
9677 }
9678
9679 static int getPoolFromOpenDirection(int direction)
9680 {
9681   switch (direction)
9682   {
9683     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
9684     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
9685     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
9686     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
9687     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
9688     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
9689   }
9690
9691   return EL_EMPTY;
9692 }
9693
9694 static int getPoolFromOpenDirectionExt(int direction, int help_element)
9695 {
9696   int element = getPoolFromOpenDirection(direction);
9697   int help_direction = getOpenDirectionFromPool(help_element);
9698
9699   if (element == EL_EMPTY)
9700   {
9701     int help_direction_vertical = help_direction & MV_VERTICAL;
9702
9703     element = getPoolFromOpenDirection(direction | help_direction_vertical);
9704   }
9705
9706   if (element == EL_EMPTY)
9707   {
9708     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
9709
9710     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
9711   }
9712
9713   return element;
9714 }
9715
9716 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
9717 {
9718   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
9719
9720   return (element_new != EL_EMPTY ? element_new : element_old);
9721 }
9722
9723 static int getOpenDirectionFromPillar(int element)
9724 {
9725   switch (element)
9726   {
9727     case EL_EMC_WALL_1:                 return (MV_DOWN);
9728     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
9729     case EL_EMC_WALL_3:                 return (MV_UP);
9730   }
9731
9732   return MV_NONE;
9733 }
9734
9735 static int getPillarFromOpenDirection(int direction)
9736 {
9737   switch (direction)
9738   {
9739     case (MV_DOWN):                     return EL_EMC_WALL_1;
9740     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
9741     case (MV_UP):                       return EL_EMC_WALL_3;
9742   }
9743
9744   return EL_EMPTY;
9745 }
9746
9747 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
9748 {
9749   int element_new = getPillarFromOpenDirection(direction);
9750
9751   return (element_new != EL_EMPTY ? element_new : element_old);
9752 }
9753
9754 static int getOpenDirectionFromSteel2(int element)
9755 {
9756   switch (element)
9757   {
9758     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
9759     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
9760     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
9761     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
9762     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
9763     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
9764     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
9765     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
9766   }
9767
9768   return MV_NONE;
9769 }
9770
9771 static int getSteel2FromOpenDirection(int direction)
9772 {
9773   switch (direction)
9774   {
9775     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
9776     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
9777     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
9778     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
9779     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
9780     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
9781     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
9782     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
9783   }
9784
9785   return EL_EMPTY;
9786 }
9787
9788 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
9789 {
9790   int element_new = getSteel2FromOpenDirection(direction);
9791
9792   return (element_new != EL_EMPTY ? element_new : element_old);
9793 }
9794
9795 static int getOpenDirectionFromChip(int element)
9796 {
9797   switch (element)
9798   {
9799     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
9800     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
9801     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
9802     case EL_SP_CHIP_TOP:                return (MV_DOWN);
9803     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
9804   }
9805
9806   return MV_NONE;
9807 }
9808
9809 static int getChipFromOpenDirection(int direction)
9810 {
9811   switch (direction)
9812   {
9813     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
9814     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
9815     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
9816     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
9817     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
9818   }
9819
9820   return EL_EMPTY;
9821 }
9822
9823 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
9824 {
9825   int element_new = getChipFromOpenDirection(direction);
9826
9827   return (element_new != EL_EMPTY ? element_new : element_old);
9828 }
9829
9830 static int getClosedTube(int x, int y)
9831 {
9832   static int xy[4][2] =
9833   {
9834     { -1, 0 },
9835     { +1, 0 },
9836     { 0, -1 },
9837     { 0, +1 }
9838   };
9839   int element_old = IntelliDrawBuffer[x][y];
9840   int direction_old = getOpenDirectionFromTube(element_old);
9841   int direction_new = MV_NONE;
9842   int i;
9843
9844   for (i = 0; i < NUM_DIRECTIONS; i++)
9845   {
9846     int xx = x + xy[i][0];
9847     int yy = y + xy[i][1];
9848     int dir = MV_DIR_FROM_BIT(i);
9849     int dir_opposite = MV_DIR_OPPOSITE(dir);
9850
9851     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
9852         (direction_old & dir) &&
9853         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9854       direction_new |= dir;
9855   }
9856
9857   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
9858 }
9859
9860 static int getClosedBelt(int x, int y)
9861 {
9862   static int xy[4][2] =
9863   {
9864     { -1, 0 },
9865     { +1, 0 },
9866     { 0, -1 },
9867     { 0, +1 }
9868   };
9869   int element_old = IntelliDrawBuffer[x][y];
9870   int nr = getBeltNrFromBeltElement(element_old);
9871   int direction_old = getOpenDirectionFromBelt(element_old);
9872   int direction_new = MV_NONE;
9873   int i;
9874
9875   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
9876   {
9877     int xx = x + xy[i][0];
9878     int yy = y + xy[i][1];
9879     int dir = MV_DIR_FROM_BIT(i);
9880     int dir_opposite = MV_DIR_OPPOSITE(dir);
9881
9882     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
9883         (direction_old & dir) &&
9884         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9885       direction_new |= dir;
9886   }
9887
9888   return getBeltFromNrAndOpenDirection(nr, direction_new);
9889 }
9890
9891 static int getClosedPool(int x, int y)
9892 {
9893   static int xy[4][2] =
9894   {
9895     { -1, 0 },
9896     { +1, 0 },
9897     { 0, -1 },
9898     { 0, +1 }
9899   };
9900   int element_old = IntelliDrawBuffer[x][y];
9901   int direction_old = getOpenDirectionFromPool(element_old);
9902   int direction_new = MV_NONE;
9903   int i;
9904
9905   for (i = 0; i < NUM_DIRECTIONS; i++)
9906   {
9907     int xx = x + xy[i][0];
9908     int yy = y + xy[i][1];
9909     int dir = MV_DIR_FROM_BIT(i);
9910     int dir_opposite = MV_DIR_OPPOSITE(dir);
9911
9912     if (IN_LEV_FIELD(xx, yy) &&
9913         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
9914         (direction_old & dir) &&
9915         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9916       direction_new |= dir;
9917   }
9918
9919   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
9920 }
9921
9922 static int getClosedPillar(int x, int y)
9923 {
9924   static int xy[4][2] =
9925   {
9926     { -1, 0 },
9927     { +1, 0 },
9928     { 0, -1 },
9929     { 0, +1 }
9930   };
9931   int element_old = IntelliDrawBuffer[x][y];
9932   int direction_old = getOpenDirectionFromPillar(element_old);
9933   int direction_new = MV_NONE;
9934   int i;
9935
9936   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
9937   {
9938     int xx = x + xy[i][0];
9939     int yy = y + xy[i][1];
9940     int dir = MV_DIR_FROM_BIT(i);
9941     int dir_opposite = MV_DIR_OPPOSITE(dir);
9942
9943     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
9944         (direction_old & dir) &&
9945         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9946       direction_new |= dir;
9947   }
9948
9949   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
9950 }
9951
9952 static int getClosedSteel2(int x, int y)
9953 {
9954   static int xy[4][2] =
9955   {
9956     { -1, 0 },
9957     { +1, 0 },
9958     { 0, -1 },
9959     { 0, +1 }
9960   };
9961   int element_old = IntelliDrawBuffer[x][y];
9962   int direction_old = getOpenDirectionFromSteel2(element_old);
9963   int direction_new = MV_NONE;
9964   int i;
9965
9966   for (i = 0; i < NUM_DIRECTIONS; i++)
9967   {
9968     int xx = x + xy[i][0];
9969     int yy = y + xy[i][1];
9970     int dir = MV_DIR_FROM_BIT(i);
9971     int dir_opposite = MV_DIR_OPPOSITE(dir);
9972
9973     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
9974         (direction_old & dir) &&
9975         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9976       direction_new |= dir;
9977   }
9978
9979   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
9980 }
9981
9982 static int getClosedChip(int x, int y)
9983 {
9984   static int xy[4][2] =
9985   {
9986     { -1, 0 },
9987     { +1, 0 },
9988     { 0, -1 },
9989     { 0, +1 }
9990   };
9991   int element_old = IntelliDrawBuffer[x][y];
9992   int direction_old = getOpenDirectionFromChip(element_old);
9993   int direction_new = MV_NONE;
9994   int i;
9995
9996   for (i = 0; i < NUM_DIRECTIONS; i++)
9997   {
9998     int xx = x + xy[i][0];
9999     int yy = y + xy[i][1];
10000     int dir = MV_DIR_FROM_BIT(i);
10001     int dir_opposite = MV_DIR_OPPOSITE(dir);
10002
10003     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
10004         (direction_old & dir) &&
10005         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
10006       direction_new |= dir;
10007   }
10008
10009   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
10010 }
10011
10012 static void SetElementSimple(int x, int y, int element, boolean change_level)
10013 {
10014   int sx = x - level_xpos;
10015   int sy = y - level_ypos;
10016
10017   IntelliDrawBuffer[x][y] = element;
10018
10019   if (change_level)
10020     Feld[x][y] = element;
10021
10022   if (IN_ED_FIELD(sx, sy))
10023     DrawEditorElement(sx, sy, element);
10024 }
10025
10026 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
10027                                            int x2, int y2, int *element2,
10028                                            int (*close_function)(int, int),
10029                                            boolean change_level)
10030 {
10031   /* set neighbour elements to newly determined connections */
10032   SetElementSimple(x1, y1, *element1, change_level);
10033   SetElementSimple(x2, y2, *element2, change_level);
10034
10035   /* remove all open connections of neighbour elements */
10036   *element1 = close_function(x1, y1);
10037   *element2 = close_function(x2, y2);
10038
10039   /* set neighbour elements to new, minimized connections */
10040   SetElementSimple(x1, y1, *element1, change_level);
10041   SetElementSimple(x2, y2, *element2, change_level);
10042 }
10043
10044 static void SetElementIntelliDraw(int x, int y, int new_element,
10045                                   boolean change_level, int button)
10046 {
10047   static int xy[4][2] =
10048   {
10049     { -1, 0 },
10050     { +1, 0 },
10051     { 0, -1 },
10052     { 0, +1 }
10053   };
10054   static int last_x = -1;
10055   static int last_y = -1;
10056   int old_element = IntelliDrawBuffer[x][y];
10057
10058   if (new_element == EL_UNDEFINED)
10059   {
10060     last_x = -1;
10061     last_y = -1;
10062
10063     return;
10064   }
10065
10066   if (IS_TUBE(new_element))
10067   {
10068     int last_element_new = EL_UNDEFINED;
10069     int direction = MV_NONE;
10070     int i;
10071
10072     /* if old element is of same kind, keep all existing directions */
10073     if (IS_TUBE(old_element))
10074       direction |= getOpenDirectionFromTube(old_element);
10075
10076     for (i = 0; i < NUM_DIRECTIONS; i++)
10077     {
10078       int xx = x + xy[i][0];
10079       int yy = y + xy[i][1];
10080
10081       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
10082           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
10083       {
10084         int dir = MV_DIR_FROM_BIT(i);
10085         int dir_opposite = MV_DIR_OPPOSITE(dir);
10086         int last_element_old = IntelliDrawBuffer[last_x][last_y];
10087         int last_direction_old = getOpenDirectionFromTube(last_element_old);
10088         int last_direction_new = last_direction_old | dir_opposite;
10089
10090         last_element_new = getTubeFromOpenDirection(last_direction_new);
10091
10092         direction |= dir;
10093       }
10094     }
10095
10096     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
10097
10098     if (last_element_new != EL_UNDEFINED)
10099       MergeAndCloseNeighbourElements(x, y, &new_element,
10100                                      last_x, last_y, &last_element_new,
10101                                      getClosedTube, change_level);
10102   }
10103   else if (IS_BELT(new_element))
10104   {
10105     int belt_nr = getBeltNrFromBeltElement(new_element);
10106     int last_element_new = EL_UNDEFINED;
10107     int direction = MV_NONE;
10108     int i;
10109
10110     /* if old element is of same kind, keep all existing directions */
10111     if (IS_BELT(old_element))
10112       direction |= getOpenDirectionFromBelt(old_element);
10113
10114     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
10115     {
10116       int xx = x + xy[i][0];
10117       int yy = y + xy[i][1];
10118
10119       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
10120           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
10121       {
10122         int dir = MV_DIR_FROM_BIT(i);
10123         int dir_opposite = MV_DIR_OPPOSITE(dir);
10124         int last_element_old = IntelliDrawBuffer[last_x][last_y];
10125         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
10126         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
10127         int last_direction_new = last_direction_old | dir_opposite;
10128
10129         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
10130                                                          last_direction_new);
10131         direction |= dir;
10132       }
10133     }
10134
10135     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
10136                                                         new_element);
10137     if (last_element_new != EL_UNDEFINED)
10138       MergeAndCloseNeighbourElements(x, y, &new_element,
10139                                      last_x, last_y, &last_element_new,
10140                                      getClosedBelt, change_level);
10141   }
10142   else if (IS_ACID_POOL_OR_ACID(new_element))
10143   {
10144     int last_element_new = EL_UNDEFINED;
10145     int direction = MV_NONE;
10146     int i;
10147
10148     /* if old element is of same kind, keep all existing directions */
10149     if (IS_ACID_POOL_OR_ACID(old_element))
10150       direction |= getOpenDirectionFromPool(old_element);
10151
10152     for (i = 0; i < NUM_DIRECTIONS; i++)
10153     {
10154       int xx = x + xy[i][0];
10155       int yy = y + xy[i][1];
10156
10157       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
10158           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
10159       {
10160         int dir = MV_DIR_FROM_BIT(i);
10161         int dir_opposite = MV_DIR_OPPOSITE(dir);
10162         int last_element_old = IntelliDrawBuffer[last_x][last_y];
10163         int last_direction_old = getOpenDirectionFromPool(last_element_old);
10164         int last_direction_new = last_direction_old | dir_opposite;
10165
10166         last_element_new = getPoolFromOpenDirection(last_direction_new);
10167
10168         direction |= dir;
10169       }
10170     }
10171
10172     /* special corrections needed for intuitively correct acid pool drawing */
10173     if (last_element_new == EL_EMPTY)
10174       last_element_new = new_element;
10175     else if (last_element_new != EL_UNDEFINED)
10176       new_element = last_element_new;
10177
10178     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
10179
10180     if (last_element_new != EL_UNDEFINED)
10181       MergeAndCloseNeighbourElements(x, y, &new_element,
10182                                      last_x, last_y, &last_element_new,
10183                                      getClosedPool, change_level);
10184   }
10185   else if (IS_EMC_PILLAR(new_element))
10186   {
10187     int last_element_new = EL_UNDEFINED;
10188     int direction = MV_NONE;
10189     int i;
10190
10191     /* if old element is of same kind, keep all existing directions */
10192     if (IS_EMC_PILLAR(old_element))
10193       direction |= getOpenDirectionFromPillar(old_element);
10194
10195     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
10196     {
10197       int xx = x + xy[i][0];
10198       int yy = y + xy[i][1];
10199
10200       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
10201           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
10202       {
10203         int dir = MV_DIR_FROM_BIT(i);
10204         int dir_opposite = MV_DIR_OPPOSITE(dir);
10205         int last_element_old = IntelliDrawBuffer[last_x][last_y];
10206         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
10207         int last_direction_new = last_direction_old | dir_opposite;
10208
10209         last_element_new = getPillarFromOpenDirection(last_direction_new);
10210
10211         direction |= dir;
10212       }
10213     }
10214
10215     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
10216
10217     if (last_element_new != EL_UNDEFINED)
10218       MergeAndCloseNeighbourElements(x, y, &new_element,
10219                                      last_x, last_y, &last_element_new,
10220                                      getClosedPillar, change_level);
10221   }
10222   else if (IS_DC_STEELWALL_2(new_element))
10223   {
10224     int last_element_new = EL_UNDEFINED;
10225     int direction = MV_NONE;
10226     int i;
10227
10228     /* if old element is of same kind, keep all existing directions */
10229     if (IS_DC_STEELWALL_2(old_element))
10230       direction |= getOpenDirectionFromSteel2(old_element);
10231
10232     for (i = 0; i < NUM_DIRECTIONS; i++)
10233     {
10234       int xx = x + xy[i][0];
10235       int yy = y + xy[i][1];
10236
10237       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
10238           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
10239       {
10240         int dir = MV_DIR_FROM_BIT(i);
10241         int dir_opposite = MV_DIR_OPPOSITE(dir);
10242         int last_element_old = IntelliDrawBuffer[last_x][last_y];
10243         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
10244         int last_direction_new = last_direction_old | dir_opposite;
10245
10246         last_element_new = getSteel2FromOpenDirection(last_direction_new);
10247
10248         direction |= dir;
10249       }
10250     }
10251
10252     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
10253
10254     if (last_element_new != EL_UNDEFINED)
10255       MergeAndCloseNeighbourElements(x, y, &new_element,
10256                                      last_x, last_y, &last_element_new,
10257                                      getClosedSteel2, change_level);
10258   }
10259   else if (IS_SP_CHIP(new_element))
10260   {
10261     int last_element_new = EL_UNDEFINED;
10262     int direction = MV_NONE;
10263     int i;
10264
10265     /* (do not keep existing directions, regardless of kind of old element) */
10266
10267     for (i = 0; i < NUM_DIRECTIONS; i++)
10268     {
10269       int xx = x + xy[i][0];
10270       int yy = y + xy[i][1];
10271
10272       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
10273           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
10274       {
10275         int dir = MV_DIR_FROM_BIT(i);
10276         int dir_opposite = MV_DIR_OPPOSITE(dir);
10277         int last_element_old = IntelliDrawBuffer[last_x][last_y];
10278         int last_direction_old = getOpenDirectionFromChip(last_element_old);
10279         int last_direction_new = last_direction_old | dir_opposite;
10280
10281         if (last_direction_old == MV_NONE)
10282         {
10283           last_element_new = getChipFromOpenDirection(last_direction_new);
10284           direction |= dir;
10285         }
10286         else if (last_direction_old & (dir | dir_opposite))
10287         {
10288           direction |= MV_DIR_OPPOSITE(last_direction_old);
10289         }
10290         else
10291         {
10292           direction |= MV_DIR_OPPOSITE(dir);
10293         }
10294       }
10295     }
10296
10297     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
10298
10299     if (last_element_new != EL_UNDEFINED)
10300       MergeAndCloseNeighbourElements(x, y, &new_element,
10301                                      last_x, last_y, &last_element_new,
10302                                      getClosedChip, change_level);
10303   }
10304   else if (IS_SP_HARDWARE_BASE(new_element))
10305   {
10306     int nr = GetSimpleRandom(6);
10307
10308     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
10309                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
10310                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
10311                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
10312                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
10313   }
10314   else if (new_element == EL_SP_HARDWARE_GREEN ||
10315            new_element == EL_SP_HARDWARE_BLUE ||
10316            new_element == EL_SP_HARDWARE_RED)
10317   {
10318     int nr = GetSimpleRandom(3);
10319
10320     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
10321                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
10322   }
10323   else if (IS_GROUP_ELEMENT(new_element))
10324   {
10325     boolean connected_drawing = FALSE;
10326     int i;
10327
10328     for (i = 0; i < NUM_DIRECTIONS; i++)
10329     {
10330       int xx = x + xy[i][0];
10331       int yy = y + xy[i][1];
10332
10333       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
10334           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
10335         connected_drawing = TRUE;
10336     }
10337
10338     if (!connected_drawing)
10339       ResolveGroupElement(new_element);
10340
10341     new_element = GetElementFromGroupElement(new_element);
10342   }
10343   else if (IS_BELT_SWITCH(old_element))
10344   {
10345     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
10346     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
10347
10348     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
10349                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
10350
10351     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
10352   }
10353   else
10354   {
10355     static int swappable_elements[][2] =
10356     {
10357       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
10358       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
10359       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
10360       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
10361       { EL_EMERALD,                     EL_WALL_EMERALD                 },
10362       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
10363       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
10364       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
10365       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
10366       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
10367       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
10368       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
10369       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
10370       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
10371       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
10372       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
10373       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
10374       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
10375       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
10376       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
10377       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
10378       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
10379       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
10380       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
10381       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
10382       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
10383       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
10384       { EL_PEARL,                       EL_WALL_PEARL                   },
10385       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
10386       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
10387       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
10388       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
10389       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
10390       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
10391       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
10392       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
10393       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
10394       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
10395       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
10396       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
10397
10398       { -1,                             -1                              },
10399     };
10400     static int rotatable_elements[][4] =
10401     {
10402       {
10403         EL_BUG_UP,
10404         EL_BUG_RIGHT,
10405         EL_BUG_DOWN,
10406         EL_BUG_LEFT
10407       },
10408
10409       {
10410         EL_SPACESHIP_UP,
10411         EL_SPACESHIP_RIGHT,
10412         EL_SPACESHIP_DOWN,
10413         EL_SPACESHIP_LEFT
10414       },
10415
10416       {
10417         EL_BD_BUTTERFLY_UP,
10418         EL_BD_BUTTERFLY_RIGHT,
10419         EL_BD_BUTTERFLY_DOWN,
10420         EL_BD_BUTTERFLY_LEFT
10421       },
10422
10423       {
10424         EL_BD_FIREFLY_UP,
10425         EL_BD_FIREFLY_RIGHT,
10426         EL_BD_FIREFLY_DOWN,
10427         EL_BD_FIREFLY_LEFT
10428       },
10429
10430       {
10431         EL_PACMAN_UP,
10432         EL_PACMAN_RIGHT,
10433         EL_PACMAN_DOWN,
10434         EL_PACMAN_LEFT
10435       },
10436
10437       {
10438         EL_YAMYAM_UP,
10439         EL_YAMYAM_RIGHT,
10440         EL_YAMYAM_DOWN,
10441         EL_YAMYAM_LEFT
10442       },
10443
10444       {
10445         EL_ARROW_UP,
10446         EL_ARROW_RIGHT,
10447         EL_ARROW_DOWN,
10448         EL_ARROW_LEFT
10449       },
10450
10451       {
10452         EL_SP_PORT_UP,
10453         EL_SP_PORT_RIGHT,
10454         EL_SP_PORT_DOWN,
10455         EL_SP_PORT_LEFT
10456       },
10457
10458       {
10459         EL_SP_GRAVITY_PORT_UP,
10460         EL_SP_GRAVITY_PORT_RIGHT,
10461         EL_SP_GRAVITY_PORT_DOWN,
10462         EL_SP_GRAVITY_PORT_LEFT
10463       },
10464
10465       {
10466         EL_SP_GRAVITY_ON_PORT_UP,
10467         EL_SP_GRAVITY_ON_PORT_RIGHT,
10468         EL_SP_GRAVITY_ON_PORT_DOWN,
10469         EL_SP_GRAVITY_ON_PORT_LEFT
10470       },
10471
10472       {
10473         EL_SP_GRAVITY_OFF_PORT_UP,
10474         EL_SP_GRAVITY_OFF_PORT_RIGHT,
10475         EL_SP_GRAVITY_OFF_PORT_DOWN,
10476         EL_SP_GRAVITY_OFF_PORT_LEFT
10477       },
10478
10479       {
10480         EL_MOLE_UP,
10481         EL_MOLE_RIGHT,
10482         EL_MOLE_DOWN,
10483         EL_MOLE_LEFT
10484       },
10485
10486       {
10487         EL_BALLOON_SWITCH_UP,
10488         EL_BALLOON_SWITCH_RIGHT,
10489         EL_BALLOON_SWITCH_DOWN,
10490         EL_BALLOON_SWITCH_LEFT
10491       },
10492
10493       {
10494         -1,
10495         -1,
10496         -1,
10497         -1,
10498       },
10499     };
10500     int i, j;
10501
10502     for (i = 0; swappable_elements[i][0] != -1; i++)
10503     {
10504       int element1 = swappable_elements[i][0];
10505       int element2 = swappable_elements[i][1];
10506
10507       if (old_element == element1 || old_element == element2)
10508         new_element = (old_element == element1 ? element2 : element1);
10509     }
10510
10511     for (i = 0; rotatable_elements[i][0] != -1; i++)
10512     {
10513       for (j = 0; j < 4; j++)
10514       {
10515         int element = rotatable_elements[i][j];
10516
10517         if (old_element == element)
10518           new_element = (button == 1 ? rotatable_elements[i][(j + 3) % 4] :
10519                          button == 2 ? rotatable_elements[i][0]           :
10520                          button == 3 ? rotatable_elements[i][(j + 1) % 4] :
10521                          old_element);
10522       }
10523     }
10524   }
10525
10526   SetElementSimple(x, y, new_element, change_level);
10527
10528   last_x = x;
10529   last_y = y;
10530 }
10531
10532 static void ResetIntelliDraw()
10533 {
10534   int x, y;
10535
10536   for (x = 0; x < lev_fieldx; x++)
10537     for (y = 0; y < lev_fieldy; y++)
10538       IntelliDrawBuffer[x][y] = Feld[x][y];
10539
10540   SetElementIntelliDraw(-1, -1, EL_UNDEFINED, FALSE, -1);
10541 }
10542
10543 static void SetElementExt(int x, int y, int element, boolean change_level,
10544                           int button)
10545 {
10546   if (element < 0)
10547     SetElementSimple(x, y, Feld[x][y], change_level);
10548   else if (GetKeyModState() & KMOD_Shift)
10549     SetElementIntelliDraw(x, y, element, change_level, button);
10550   else
10551     SetElementSimple(x, y, element, change_level);
10552 }
10553
10554 static void SetElement(int x, int y, int element)
10555 {
10556   SetElementExt(x, y, element, TRUE, -1);
10557 }
10558
10559 static void SetElementButton(int x, int y, int element, int button)
10560 {
10561   SetElementExt(x, y, element, TRUE, button);
10562 }
10563
10564 static void DrawLineElement(int sx, int sy, int element, boolean change_level)
10565 {
10566   int lx = sx + level_xpos;
10567   int ly = sy + level_ypos;
10568
10569   SetElementExt(lx, ly, element, change_level, -1);
10570 }
10571
10572 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
10573                      int element, boolean change_level)
10574 {
10575   int xsize = ABS(to_x - from_x);
10576   int ysize = ABS(to_y - from_y);
10577   int dx = (to_x < from_x ? -1 : +1);
10578   int dy = (to_y < from_y ? -1 : +1);
10579   int i;
10580
10581   if (from_y == to_y)                   /* horizontal line */
10582   {
10583     for (i = 0; i <= xsize; i++)
10584       DrawLineElement(from_x + i * dx, from_y, element, change_level);
10585   }
10586   else if (from_x == to_x)              /* vertical line */
10587   {
10588     for (i = 0; i <= ysize; i++)
10589       DrawLineElement(from_x, from_y + i * dy, element, change_level);
10590   }
10591   else                                  /* diagonal line */
10592   {
10593     if (ysize < xsize)                  /* a < 1 */
10594     {
10595       float a = (float)ysize / (float)xsize;
10596
10597       for (i = 0; i <= xsize; i++)
10598       {
10599         int x = dx * i;
10600         int y = dy * (int)(a * i + 0.5);
10601
10602         DrawLineElement(from_x + x, from_y + y, element, change_level);
10603       }
10604     }
10605     else                                /* a >= 1 */
10606     {
10607       float a = (float)xsize / (float)ysize;
10608
10609       for (i = 0; i <= ysize; i++)
10610       {
10611         int x = dx * (int)(a * i + 0.5);
10612         int y = dy * i;
10613
10614         DrawLineElement(from_x + x, from_y + y, element, change_level);
10615       }
10616     }
10617   }
10618 }
10619
10620 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
10621                     int element, boolean change_level)
10622 {
10623   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
10624   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
10625   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
10626   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
10627 }
10628
10629 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
10630                           int element, boolean change_level)
10631 {
10632   int y;
10633
10634   if (from_y > to_y)
10635     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
10636
10637   for (y = from_y; y <= to_y; y++)
10638     DrawLine(from_x, y, to_x, y, element, change_level);
10639 }
10640
10641 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
10642                        int element, boolean change_level)
10643 {
10644   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
10645   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
10646   int len_x = ABS(to_x - from_x);
10647   int len_y = ABS(to_y - from_y);
10648   int radius, x, y;
10649
10650   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
10651
10652   /* not optimal (some points get drawn twice) but simple,
10653      and fast enough for the few points we are drawing */
10654
10655   for (x = 0; x <= radius; x++)
10656   {
10657     int sx, sy, lx, ly;
10658
10659     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
10660
10661     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
10662     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
10663     lx = sx + level_xpos;
10664     ly = sy + level_ypos;
10665
10666     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
10667       DrawLineElement(sx, sy, element, change_level);
10668   }
10669
10670   for (y = 0; y <= radius; y++)
10671   {
10672     int sx, sy, lx, ly;
10673
10674     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
10675
10676     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
10677     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
10678     lx = sx + level_xpos;
10679     ly = sy + level_ypos;
10680
10681     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
10682       DrawLineElement(sx, sy, element, change_level);
10683   }
10684 }
10685
10686 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
10687                     int element, boolean change_level)
10688 {
10689   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
10690   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
10691
10692   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
10693 }
10694
10695 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
10696
10697 #if DRAW_CIRCLES_BUTTON_AVAILABLE
10698 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
10699                        int element, boolean change_level)
10700 {
10701   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
10702   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
10703   int mirror_to_x2 = from_x - (to_x2 - from_x);
10704   int mirror_to_y2 = from_y - (to_y2 - from_y);
10705
10706   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
10707   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
10708   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
10709   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
10710 }
10711 #endif
10712
10713 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
10714 {
10715   int from_sx, from_sy;
10716   int to_sx, to_sy;
10717
10718   if (from_x > to_x)
10719     swap_numbers(&from_x, &to_x);
10720
10721   if (from_y > to_y)
10722     swap_numbers(&from_y, &to_y);
10723
10724   from_sx = SX + from_x * ed_tilesize;
10725   from_sy = SY + from_y * ed_tilesize;
10726   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
10727   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
10728
10729   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
10730   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
10731   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
10732   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
10733
10734   if (from_x == to_x && from_y == to_y)
10735     MarkTileDirty(from_x/2, from_y/2);
10736   else
10737     redraw_mask |= REDRAW_FIELD;
10738 }
10739
10740 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
10741                        int element, boolean change_level)
10742 {
10743   if (element == -1 || change_level)
10744     DrawBox(from_x, from_y, to_x, to_y, -1, FALSE);
10745   else
10746     DrawAreaBorder(from_x, from_y, to_x, to_y);
10747 }
10748
10749 /* values for CopyBrushExt() */
10750 #define CB_AREA_TO_BRUSH        0
10751 #define CB_BRUSH_TO_CURSOR      1
10752 #define CB_BRUSH_TO_LEVEL       2
10753 #define CB_DELETE_OLD_CURSOR    3
10754 #define CB_DUMP_BRUSH           4
10755 #define CB_DUMP_BRUSH_SMALL     5
10756
10757 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
10758                          int button, int mode)
10759 {
10760   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
10761   static int brush_width, brush_height;
10762   static int last_cursor_x = -1, last_cursor_y = -1;
10763   static boolean delete_old_brush;
10764   int new_element = BUTTON_ELEMENT(button);
10765   int x, y;
10766
10767   if (mode == CB_DUMP_BRUSH ||
10768       mode == CB_DUMP_BRUSH_SMALL)
10769   {
10770     if (!draw_with_brush)
10771     {
10772       Error(ERR_WARN, "no brush selected");
10773
10774       return;
10775     }
10776
10777     for (y = 0; y < brush_height; y++)
10778     {
10779       for (x = 0; x < brush_width; x++)
10780       {
10781         int element = brush_buffer[x][y];
10782         int element_mapped = element;
10783
10784         if (IS_CUSTOM_ELEMENT(element))
10785           element_mapped = EL_CUSTOM_START;
10786         else if (IS_GROUP_ELEMENT(element))
10787           element_mapped = EL_GROUP_START;
10788         else if (element >= NUM_FILE_ELEMENTS)
10789           element_mapped = EL_UNKNOWN;
10790
10791         // dump brush as level sketch text for the R'n'D forum:
10792         // - large tiles: `xxx (0x60 ASCII)
10793         // - small tiles: ¸xxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
10794         printf("%s%03d", (mode == CB_DUMP_BRUSH ? "`" : "¸"), element_mapped);
10795       }
10796
10797       printf("\n");
10798     }
10799
10800     return;
10801   }
10802
10803   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
10804     return;
10805
10806   if (mode == CB_AREA_TO_BRUSH)
10807   {
10808     int from_lx, from_ly;
10809
10810     if (from_x > to_x)
10811       swap_numbers(&from_x, &to_x);
10812
10813     if (from_y > to_y)
10814       swap_numbers(&from_y, &to_y);
10815
10816     brush_width = to_x - from_x + 1;
10817     brush_height = to_y - from_y + 1;
10818
10819     from_lx = from_x + level_xpos;
10820     from_ly = from_y + level_ypos;
10821
10822     for (y = 0; y < brush_height; y++)
10823     {
10824       for (x = 0; x < brush_width; x++)
10825       {
10826         brush_buffer[x][y] = Feld[from_lx + x][from_ly + y];
10827
10828         if (button != 1)
10829           DrawLineElement(from_x + x, from_y + y, new_element, TRUE);
10830       }
10831     }
10832
10833     if (button != 1)
10834       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
10835
10836     delete_old_brush = FALSE;
10837   }
10838   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
10839            mode == CB_BRUSH_TO_LEVEL)
10840   {
10841     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
10842     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
10843     int cursor_from_x = cursor_x - brush_width / 2;
10844     int cursor_from_y = cursor_y - brush_height / 2;
10845     int border_from_x = cursor_x, border_from_y = cursor_y;
10846     int border_to_x = cursor_x, border_to_y = cursor_y;
10847
10848     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
10849       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
10850
10851     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
10852         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
10853     {
10854       delete_old_brush = FALSE;
10855       return;
10856     }
10857
10858     for (y = 0; y < brush_height; y++)
10859     {
10860       for (x = 0; x < brush_width; x++)
10861       {
10862         int sx = cursor_from_x + x;
10863         int sy = cursor_from_y + y;
10864         int lx = sx + level_xpos;
10865         int ly = sy + level_ypos;
10866         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
10867         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
10868                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
10869                        brush_buffer[x][y] : new_element);
10870
10871         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
10872         {
10873           if (sx < border_from_x)
10874             border_from_x = sx;
10875           else if (sx > border_to_x)
10876             border_to_x = sx;
10877           if (sy < border_from_y)
10878             border_from_y = sy;
10879           else if (sy > border_to_y)
10880             border_to_y = sy;
10881
10882           DrawLineElement(sx, sy, element, change_level);
10883         }
10884       }
10885     }
10886
10887     if (mode != CB_DELETE_OLD_CURSOR)
10888       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
10889
10890     last_cursor_x = cursor_x;
10891     last_cursor_y = cursor_y;
10892     delete_old_brush = TRUE;
10893   }
10894 }
10895
10896 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
10897                             int button)
10898 {
10899   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
10900 }
10901
10902 static void CopyBrushToLevel(int x, int y, int button)
10903 {
10904   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
10905 }
10906
10907 static void CopyBrushToCursor(int x, int y)
10908 {
10909   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
10910 }
10911
10912 static void DeleteBrushFromCursor()
10913 {
10914   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
10915 }
10916
10917 void DumpBrush()
10918 {
10919   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
10920 }
10921
10922 void DumpBrush_Small()
10923 {
10924   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
10925 }
10926
10927 static void FloodFill(int from_x, int from_y, int fill_element)
10928 {
10929   FloodFillLevel(from_x, from_y, fill_element, Feld, lev_fieldx, lev_fieldy);
10930 }
10931
10932 /* values for DrawLevelText() modes */
10933 #define TEXT_INIT               0
10934 #define TEXT_SETCURSOR          1
10935 #define TEXT_WRITECHAR          2
10936 #define TEXT_BACKSPACE          3
10937 #define TEXT_NEWLINE            4
10938 #define TEXT_END                5
10939 #define TEXT_QUERY_TYPING       6
10940
10941 static int DrawLevelText(int sx, int sy, char letter, int mode)
10942 {
10943   static short delete_buffer[MAX_LEV_FIELDX];
10944   static int start_sx;
10945   static int last_sx, last_sy;
10946   static boolean typing = FALSE;
10947   int letter_element = EL_CHAR_ASCII0 + letter;
10948   int lx = 0, ly = 0;
10949
10950   /* map lower case letters to upper case and convert special characters */
10951   if (letter >= 'a' && letter <= 'z')
10952     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
10953   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
10954     letter_element = EL_CHAR_AUMLAUT;
10955   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
10956     letter_element = EL_CHAR_OUMLAUT;
10957   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
10958     letter_element = EL_CHAR_UUMLAUT;
10959   else if (letter == '^')
10960     letter_element = EL_CHAR_COPYRIGHT;
10961   else
10962     letter_element = EL_CHAR_ASCII0 + letter;
10963
10964   if (mode != TEXT_INIT)
10965   {
10966     if (!typing)
10967       return FALSE;
10968
10969     if (mode != TEXT_SETCURSOR)
10970     {
10971       sx = last_sx;
10972       sy = last_sy;
10973     }
10974
10975     lx = last_sx + level_xpos;
10976     ly = last_sy + level_ypos;
10977   }
10978
10979   switch (mode)
10980   {
10981     case TEXT_INIT:
10982       if (typing)
10983         DrawLevelText(0, 0, 0, TEXT_END);
10984
10985       typing = TRUE;
10986       start_sx = sx;
10987       last_sx = sx;
10988       last_sy = sy;
10989       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
10990       break;
10991
10992     case TEXT_SETCURSOR:
10993       DrawEditorElement(last_sx, last_sy, Feld[lx][ly]);
10994       DrawAreaBorder(sx, sy, sx, sy);
10995       last_sx = sx;
10996       last_sy = sy;
10997       break;
10998
10999     case TEXT_WRITECHAR:
11000       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
11001       {
11002         if (new_element1 >= EL_STEEL_CHAR_START &&
11003             new_element1 <= EL_STEEL_CHAR_END)
11004           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
11005
11006         delete_buffer[sx - start_sx] = Feld[lx][ly];
11007         Feld[lx][ly] = letter_element;
11008
11009         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
11010           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
11011         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
11012           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
11013         else
11014           DrawLevelText(0, 0, 0, TEXT_END);
11015
11016         level.changed = TRUE;
11017       }
11018       break;
11019
11020     case TEXT_BACKSPACE:
11021       if (sx > start_sx)
11022       {
11023         Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
11024         DrawEditorElement(sx - 1, sy, Feld[lx - 1][ly]);
11025         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
11026       }
11027       break;
11028
11029     case TEXT_NEWLINE:
11030       if (sy + 1 < ed_fieldy - 1 && ly + 1 < lev_fieldy - 1)
11031         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
11032       else
11033         DrawLevelText(0, 0, 0, TEXT_END);
11034       break;
11035
11036     case TEXT_END:
11037       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
11038       DrawEditorElement(sx, sy, Feld[lx][ly]);
11039       typing = FALSE;
11040       break;
11041
11042     case TEXT_QUERY_TYPING:
11043       break;
11044
11045     default:
11046       break;
11047   }
11048
11049   return typing;
11050 }
11051
11052 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
11053                           int element, boolean change_level)
11054 {
11055   int lx = sx + level_xpos;
11056   int ly = sy + level_ypos;
11057
11058   if (element == -1)
11059     DrawEditorElement(sx, sy, Feld[lx][ly]);
11060   else
11061     DrawAreaBorder(sx, sy, sx, sy);
11062 }
11063
11064 static void CheckLevelBorderElement(boolean redraw_playfield)
11065 {
11066   int last_border_element = BorderElement;
11067
11068   SetBorderElement();
11069
11070   if (redraw_playfield && BorderElement != last_border_element)
11071     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11072 }
11073
11074 static void CopyLevelToUndoBuffer(int mode)
11075 {
11076   static boolean accumulated_undo = FALSE;
11077   boolean new_undo_buffer_position = TRUE;
11078   int x, y;
11079
11080   if (undo_buffer_steps == 0)
11081     accumulated_undo = FALSE;
11082
11083   switch (mode)
11084   {
11085     case UNDO_IMMEDIATE:
11086       accumulated_undo = FALSE;
11087       break;
11088
11089     case UNDO_ACCUMULATE:
11090       if (accumulated_undo)
11091         new_undo_buffer_position = FALSE;
11092       accumulated_undo = TRUE;
11093       break;
11094
11095     default:
11096       break;
11097   }
11098
11099   if (new_undo_buffer_position)
11100   {
11101     /* advance position in undo buffer ring */
11102     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
11103
11104     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
11105       undo_buffer_steps++;
11106   }
11107
11108   /* always reset redo buffer when storing level change into undo buffer */
11109   redo_buffer_steps = 0;
11110
11111   for (x = 0; x < lev_fieldx; x++)
11112     for (y = 0; y < lev_fieldy; y++)
11113       UndoBuffer[undo_buffer_position][x][y] = Feld[x][y];
11114
11115   /* check if drawing operation forces change of border style */
11116   CheckLevelBorderElement(TRUE);
11117
11118   level.changed = TRUE;
11119 }
11120
11121 static void RandomPlacement(int new_element)
11122 {
11123   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
11124   int num_free_positions = 0;
11125   int num_percentage, num_elements;
11126   int x, y;
11127
11128   ResetIntelliDraw();
11129
11130   /* determine number of free positions for randomly placing the new element */
11131   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
11132   {
11133     free_position[x][y] =
11134       (random_placement_background_restricted ?
11135        Feld[x][y] == random_placement_background_element :
11136        Feld[x][y] != new_element);
11137
11138     if (free_position[x][y])
11139       num_free_positions++;
11140   }
11141
11142   /* determine number of new elements to place there */
11143   num_percentage = num_free_positions * random_placement_value / 100;
11144   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
11145                   num_percentage : random_placement_value);
11146
11147   /* if less free positions than elements to place, fill all these positions */
11148   if (num_free_positions < num_elements)
11149   {
11150     for (x = 0; x < lev_fieldx; x++)
11151       for (y = 0; y < lev_fieldy; y++)
11152         if (free_position[x][y])
11153           SetElement(x, y, new_element);
11154   }
11155   else
11156   {
11157     while (num_elements > 0)
11158     {
11159       x = GetSimpleRandom(lev_fieldx);
11160       y = GetSimpleRandom(lev_fieldy);
11161
11162       /* don't place element at the same position twice */
11163       if (free_position[x][y])
11164       {
11165         free_position[x][y] = FALSE;
11166         SetElement(x, y, new_element);
11167         num_elements--;
11168       }
11169     }
11170   }
11171
11172   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11173   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
11174 }
11175
11176 void WrapLevel(int dx, int dy)
11177 {
11178   int wrap_dx = lev_fieldx - dx;
11179   int wrap_dy = lev_fieldy - dy;
11180   int x, y;
11181
11182   for (x = 0; x < lev_fieldx; x++)
11183     for (y = 0; y < lev_fieldy; y++)
11184       FieldBackup[x][y] = Feld[x][y];
11185
11186   for (x = 0; x < lev_fieldx; x++)
11187     for (y = 0; y < lev_fieldy; y++)
11188       Feld[x][y] =
11189         FieldBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
11190
11191   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11192   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
11193 }
11194
11195 static void HandleDrawingAreas(struct GadgetInfo *gi)
11196 {
11197   static boolean started_inside_drawing_area = FALSE;
11198   int id = gi->custom_id;
11199   int type_id = gi->custom_type_id;
11200   boolean button_press_event;
11201   boolean button_release_event;
11202   boolean inside_drawing_area = !gi->event.off_borders;
11203   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
11204   int actual_drawing_function;
11205   int button = gi->event.button;
11206   int new_element = BUTTON_ELEMENT(button);
11207   int sx = gi->event.x, sy = gi->event.y;
11208   int min_sx = 0, min_sy = 0;
11209   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
11210   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
11211   int lx = 0, ly = 0;
11212   int min_lx = 0, min_ly = 0;
11213   int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
11214   int x, y;
11215
11216   /* handle info callback for each invocation of action callback */
11217   gi->callback_info(gi);
11218
11219   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
11220   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
11221
11222   /* make sure to stay inside drawing area boundaries */
11223   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
11224   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
11225
11226   if (draw_level)
11227   {
11228     /* get positions inside level field */
11229     lx = sx + level_xpos;
11230     ly = sy + level_ypos;
11231
11232     if (!IN_LEV_FIELD(lx, ly))
11233       inside_drawing_area = FALSE;
11234
11235     /* make sure to stay inside level field boundaries */
11236     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
11237     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
11238
11239     /* correct drawing area positions accordingly */
11240     sx = lx - level_xpos;
11241     sy = ly - level_ypos;
11242   }
11243
11244   if (button_press_event)
11245     started_inside_drawing_area = inside_drawing_area;
11246
11247   if (!started_inside_drawing_area)
11248     return;
11249
11250   if (!IS_VALID_BUTTON(button))
11251     return;
11252
11253   if (!button && !button_release_event)
11254     return;
11255
11256   /* automatically switch to 'single item' drawing mode, if needed */
11257   actual_drawing_function =
11258     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
11259      drawing_function : GADGET_ID_SINGLE_ITEMS);
11260
11261   /* clicking into drawing area with pressed Control key picks element */
11262   if (GetKeyModState() & KMOD_Control)
11263   {
11264     last_drawing_function = drawing_function;
11265     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
11266   }
11267
11268   if (GetKeyModState() & KMOD_Shift)
11269   {
11270     if (button_press_event || button_release_event)
11271       ResetIntelliDraw();
11272   }
11273
11274   switch (actual_drawing_function)
11275   {
11276     case GADGET_ID_SINGLE_ITEMS:
11277       if (draw_level)
11278       {
11279         if (button_release_event)
11280         {
11281           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
11282
11283           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
11284               !inside_drawing_area)
11285             DeleteBrushFromCursor();
11286         }
11287
11288         if (!button || button_release_event)
11289           break;
11290
11291         if (draw_with_brush)
11292         {
11293           CopyBrushToLevel(sx, sy, button);
11294         }
11295         else
11296         {
11297           if (new_element == EL_PLAYER_1)
11298           {
11299             /* remove player at old position */
11300             for (y = 0; y < lev_fieldy; y++)
11301               for (x = 0; x < lev_fieldx; x++)
11302                 if (Feld[x][y] == EL_PLAYER_1)
11303                   SetElement(x, y, EL_EMPTY);
11304           }
11305
11306           SetElementButton(lx, ly, new_element, button);
11307         }
11308       }
11309       else if (!button_release_event)
11310       {
11311         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
11312
11313         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
11314           DrawMiniGraphicExt(drawto,
11315                              gi->x + sx * MINI_TILEX,
11316                              gi->y + sy * MINI_TILEY,
11317                              el2edimg(new_element));
11318         else
11319           DrawFixedGraphicExt(drawto,
11320                               gi->x + sx * TILEX,
11321                               gi->y + sy * TILEY,
11322                               el2edimg(new_element), 0);
11323
11324         if (id == GADGET_ID_CUSTOM_GRAPHIC)
11325           new_element = GFX_ELEMENT(new_element);
11326
11327         drawingarea_info[type_id].value[pos] = new_element;
11328
11329         CopyElementPropertiesToGame(properties_element);
11330
11331         if (id == GADGET_ID_CUSTOM_GRAPHIC)
11332         {
11333           UpdateCustomElementGraphicGadgets();
11334
11335           FrameCounter = 0;     /* restart animation frame counter */
11336         }
11337       }
11338       break;
11339
11340     case GADGET_ID_CONNECTED_ITEMS:
11341       {
11342         static int last_sx = -1;
11343         static int last_sy = -1;
11344
11345         if (button_release_event)
11346           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
11347
11348         if (button)
11349         {
11350           if (!button_press_event)
11351             DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
11352
11353           last_sx = sx;
11354           last_sy = sy;
11355         }
11356       }
11357       break;
11358
11359     case GADGET_ID_LINE:
11360     case GADGET_ID_ARC:
11361     case GADGET_ID_RECTANGLE:
11362     case GADGET_ID_FILLED_BOX:
11363     case GADGET_ID_GRAB_BRUSH:
11364     case GADGET_ID_TEXT:
11365       {
11366         static int last_sx = -1;
11367         static int last_sy = -1;
11368         static int start_sx = -1;
11369         static int start_sy = -1;
11370         void (*draw_func)(int, int, int, int, int, boolean);
11371
11372         if (drawing_function == GADGET_ID_LINE)
11373           draw_func = DrawLine;
11374         else if (drawing_function == GADGET_ID_ARC)
11375           draw_func = DrawArc;
11376         else if (drawing_function == GADGET_ID_RECTANGLE)
11377           draw_func = DrawBox;
11378         else if (drawing_function == GADGET_ID_FILLED_BOX)
11379           draw_func = DrawFilledBox;
11380         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
11381           draw_func = SelectArea;
11382         else /* (drawing_function == GADGET_ID_TEXT) */
11383           draw_func = SetTextCursor;
11384
11385         if (button_press_event)
11386         {
11387           draw_func(sx, sy, sx, sy, new_element, FALSE);
11388           start_sx = last_sx = sx;
11389           start_sy = last_sy = sy;
11390
11391           if (drawing_function == GADGET_ID_TEXT)
11392             DrawLevelText(0, 0, 0, TEXT_END);
11393         }
11394         else if (button_release_event)
11395         {
11396           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
11397           if (drawing_function == GADGET_ID_GRAB_BRUSH)
11398           {
11399             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
11400             CopyBrushToCursor(sx, sy);
11401             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
11402                           MB_LEFTBUTTON);
11403             draw_with_brush = TRUE;
11404           }
11405           else if (drawing_function == GADGET_ID_TEXT)
11406             DrawLevelText(sx, sy, 0, TEXT_INIT);
11407           else
11408             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
11409         }
11410         else if (last_sx != sx || last_sy != sy)
11411         {
11412           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
11413           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
11414           last_sx = sx;
11415           last_sy = sy;
11416         }
11417       }
11418       break;
11419
11420     case GADGET_ID_FLOOD_FILL:
11421       if (button_press_event && Feld[lx][ly] != new_element)
11422       {
11423         FloodFill(lx, ly, new_element);
11424         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11425         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
11426       }
11427       break;
11428
11429     case GADGET_ID_PICK_ELEMENT:
11430       if (button_release_event)
11431         ClickOnGadget(level_editor_gadget[last_drawing_function],
11432                       MB_LEFTBUTTON);
11433       else if (draw_level)
11434         PickDrawingElement(button, Feld[lx][ly]);
11435       else
11436       {
11437         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
11438
11439         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
11440       }
11441
11442     default:
11443       break;
11444   }
11445
11446   /* do not mark level as modified for certain non-level-changing gadgets */
11447   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
11448        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
11449       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
11450     return;
11451
11452   level.changed = TRUE;
11453 }
11454
11455 static void HandleCounterButtons(struct GadgetInfo *gi)
11456 {
11457   int gadget_id = gi->custom_id;
11458   int counter_id = gi->custom_type_id;
11459   int button = gi->event.button;
11460   int *counter_value = counterbutton_info[counter_id].value;
11461   int step = BUTTON_STEPSIZE(button) *
11462     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
11463
11464   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
11465   {
11466     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
11467     boolean released = (gi->event.type == GD_EVENT_RELEASED);
11468     boolean level_changed = LevelChanged();
11469
11470     if ((level_changed && pressed) || (!level_changed && released))
11471       return;
11472
11473     if (level_changed && !Request("Level has changed! Discard changes?",
11474                                   REQ_ASK))
11475     {
11476       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
11477         ModifyEditorCounterValue(counter_id, *counter_value);
11478
11479       return;
11480     }
11481   }
11482
11483   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
11484     *counter_value = gi->textinput.number_value;
11485   else
11486     ModifyEditorCounterValue(counter_id, *counter_value + step);
11487
11488   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
11489   {
11490       LoadLevel(level_nr);
11491       LoadScore(level_nr);
11492
11493       SaveLevelSetup_SeriesInfo();
11494
11495       TapeErase();
11496
11497       ResetUndoBuffer();
11498       DrawEditModeWindow();
11499
11500       return;
11501   }
11502
11503   switch (counter_id)
11504   {
11505     case ED_COUNTER_ID_YAMYAM_CONTENT:
11506       DrawYamYamContentAreas();
11507       break;
11508
11509     case ED_COUNTER_ID_BALL_CONTENT:
11510       DrawMagicBallContentAreas();
11511       break;
11512
11513     case ED_COUNTER_ID_ANDROID_CONTENT:
11514       DrawAndroidElementArea(properties_element);
11515       break;
11516
11517     case ED_COUNTER_ID_GROUP_CONTENT:
11518       DrawGroupElementArea(properties_element);
11519       CopyGroupElementPropertiesToGame(properties_element);
11520       break;
11521
11522     case ED_COUNTER_ID_INVENTORY_SIZE:
11523       DrawPlayerInitialInventoryArea(properties_element);
11524       break;
11525
11526     case ED_COUNTER_ID_ENVELOPE_XSIZE:
11527     case ED_COUNTER_ID_ENVELOPE_YSIZE:
11528       DrawEnvelopeTextArea(-1);
11529       break;
11530
11531     case ED_COUNTER_ID_LEVEL_XSIZE:
11532     case ED_COUNTER_ID_LEVEL_YSIZE:
11533       lev_fieldx = level.fieldx;
11534       lev_fieldy = level.fieldy;
11535
11536       /* check if resizing of level results in change of border border */
11537       SetBorderElement();
11538
11539       break;
11540
11541     default:
11542       break;
11543   }
11544
11545   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
11546        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
11547       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
11548        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
11549     CopyElementPropertiesToGame(properties_element);
11550
11551   /* do not mark level as modified for certain non-level-changing gadgets */
11552   if (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
11553       counter_id <= ED_COUNTER_ID_EDITOR_LAST)
11554     return;
11555
11556   level.changed = TRUE;
11557 }
11558
11559 static void HandleTextInputGadgets(struct GadgetInfo *gi)
11560 {
11561   int type_id = gi->custom_type_id;
11562
11563   strcpy(textinput_info[type_id].value, gi->textinput.value);
11564
11565   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
11566   {
11567     CopyElementPropertiesToGame(properties_element);
11568
11569     ModifyEditorElementList();  /* update changed button info text */
11570   }
11571
11572   level.changed = TRUE;
11573 }
11574
11575 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
11576 {
11577   int type_id = gi->custom_type_id;
11578
11579   strncpy(textarea_info[type_id].value, gi->textarea.value,
11580           MAX_ENVELOPE_TEXT_LEN);
11581   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
11582
11583   level.changed = TRUE;
11584 }
11585
11586 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
11587 {
11588   int type_id = gi->custom_type_id;
11589   int value_old = *selectbox_info[type_id].value;
11590   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
11591
11592   *selectbox_info[type_id].value = value_new;
11593
11594   if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
11595   {
11596     element_info[properties_element].current_change_page = gi->selectbox.index;
11597
11598     DrawPropertiesWindow();
11599   }
11600   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
11601             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
11602            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
11603             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
11604            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
11605   {
11606     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
11607     {
11608       /* when changing action type, also check action mode and action arg */
11609       if (value_old != value_new)
11610         setSelectboxSpecialActionVariablesIfNeeded();
11611
11612       DrawPropertiesChange();
11613     }
11614
11615     CopyElementPropertiesToGame(properties_element);
11616
11617     level.changed = TRUE;
11618   }
11619 }
11620
11621 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
11622 {
11623   int type_id = gi->custom_type_id;
11624   int i;
11625
11626   if (type_id >= ED_TAB_BUTTON_ID_LEVELINFO_FIRST &&
11627       type_id <= ED_TAB_BUTTON_ID_LEVELINFO_LAST)
11628   {
11629     edit_mode_levelinfo = gi->custom_type_id;
11630
11631     DrawLevelInfoWindow();
11632   }
11633   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
11634            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
11635   {
11636     edit_mode_properties = gi->custom_type_id;
11637
11638     DrawPropertiesWindow();
11639   }
11640   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
11641            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
11642   {
11643     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
11644
11645     /* backup original "level.field" (needed to track playfield changes) */
11646     CopyPlayfield(level.field, FieldBackup);
11647
11648     /* "SaveLevelTemplate()" uses "level.field", so copy editor playfield */
11649     CopyPlayfield(Feld, level.field);
11650
11651     if (new_template ||
11652         Request("Save this template and kill the old?", REQ_ASK))
11653       SaveLevelTemplate();
11654
11655     if (new_template)
11656       Request("Template saved!", REQ_CONFIRM);
11657
11658     /* restore original "level.field" (needed to track playfield changes) */
11659     CopyPlayfield(FieldBackup, level.field);
11660   }
11661   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
11662            custom_element.num_change_pages < MAX_CHANGE_PAGES)
11663   {
11664     struct ElementInfo *ei = &element_info[properties_element];
11665
11666     /* when modifying custom element, ask for copying level template */
11667     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
11668       return;
11669
11670     setElementChangePages(ei, ei->num_change_pages + 1);
11671
11672     /* set new change page to be new current change page */
11673     ei->current_change_page = ei->num_change_pages - 1;
11674     ei->change = &ei->change_page[ei->current_change_page];
11675
11676     setElementChangeInfoToDefaults(ei->change);
11677
11678     DrawPropertiesWindow();
11679
11680     level.changed = TRUE;
11681   }
11682   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
11683            custom_element.num_change_pages > MIN_CHANGE_PAGES)
11684   {
11685     struct ElementInfo *ei = &element_info[properties_element];
11686
11687     /* when modifying custom element, ask for copying level template */
11688     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
11689       return;
11690
11691     /* copy all change pages after change page to be deleted */
11692     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
11693       ei->change_page[i] = ei->change_page[i + 1];
11694
11695     setElementChangePages(ei, ei->num_change_pages - 1);
11696
11697     DrawPropertiesWindow();
11698
11699     level.changed = TRUE;
11700   }
11701 }
11702
11703 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
11704 {
11705   int type_id = gi->custom_type_id;
11706
11707   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
11708       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
11709   {
11710     struct ElementInfo *ei = &element_info[properties_element];
11711     int step = BUTTON_STEPSIZE(gi->event.button);
11712
11713     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
11714     ei->current_change_page += step;
11715
11716     if (ei->current_change_page < 0)
11717       ei->current_change_page = 0;
11718     else if (ei->current_change_page >= ei->num_change_pages)
11719       ei->current_change_page = ei->num_change_pages - 1;
11720
11721     DrawPropertiesWindow();
11722   }
11723   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
11724            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
11725   {
11726     struct ElementInfo *ei = &element_info[properties_element];
11727     int current_change_page = ei->current_change_page;
11728
11729     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
11730     {
11731       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
11732         ei->change_page[current_change_page];
11733     }
11734     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
11735     {
11736       /* when modifying custom element, ask for copying level template */
11737       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
11738         return;
11739
11740       ei->change_page[current_change_page] =
11741         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
11742
11743       level.changed = TRUE;
11744     }
11745
11746     DrawPropertiesWindow();
11747   }
11748 }
11749
11750 static void HandleRadiobuttons(struct GadgetInfo *gi)
11751 {
11752   int type_id = gi->custom_type_id;
11753
11754   *radiobutton_info[type_id].value =
11755     radiobutton_info[type_id].checked_value;
11756
11757   /* do not mark level as modified for certain non-level-changing gadgets */
11758   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
11759       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
11760     return;
11761
11762   level.changed = TRUE;
11763 }
11764
11765 static void HandleCheckbuttons(struct GadgetInfo *gi)
11766 {
11767   int type_id = gi->custom_type_id;
11768
11769   *checkbutton_info[type_id].value ^= TRUE;
11770
11771   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
11772       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
11773       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
11774       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
11775          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
11776         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
11777          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
11778        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
11779   {
11780     CopyElementPropertiesToGame(properties_element);
11781   }
11782
11783   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
11784   {
11785     UpdateCustomElementGraphicGadgets();
11786   }
11787   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
11788            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
11789   {
11790     boolean template_related_changes_found = FALSE;
11791     int i;
11792
11793     /* check if any custom or group elements have been changed */
11794     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
11795       if ((IS_CUSTOM_ELEMENT(i) || IS_GROUP_ELEMENT(i)) &&
11796           element_info[i].modified_settings)
11797         template_related_changes_found = TRUE;
11798
11799     if (level.use_custom_template &&
11800         !fileExists(getGlobalLevelTemplateFilename()))
11801     {
11802       Request("No level template found!", REQ_CONFIRM);
11803
11804       level.use_custom_template = FALSE;
11805
11806       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
11807
11808       return;
11809     }
11810
11811     if (level.use_custom_template &&
11812         template_related_changes_found &&
11813         !Request("Discard changes and use level template?", REQ_ASK))
11814     {
11815       level.use_custom_template = FALSE;
11816
11817       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
11818
11819       return;
11820     }
11821
11822     if (!level.use_custom_template &&
11823         Request("Copy settings from level template?", REQ_ASK))
11824     {
11825       return;
11826     }
11827
11828     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
11829
11830     DrawEditModeWindow();
11831   }
11832   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
11833   {
11834     if (setup.editor.use_template_for_new_levels &&
11835         !fileExists(getGlobalLevelTemplateFilename()))
11836     {
11837       Request("No level template found!", REQ_CONFIRM);
11838
11839       return;
11840     }
11841
11842     if (setup.editor.use_template_for_new_levels &&
11843         level.changed &&
11844         !Request("Discard level and load template?", REQ_ASK))
11845     {
11846       return;
11847     }
11848
11849     if (!setup.editor.use_template_for_new_levels &&
11850         level.changed &&
11851         !Request("Discard level and use empty level?", REQ_ASK))
11852     {
11853       return;
11854     }
11855
11856     LoadLevel(level_nr);
11857     LoadScore(level_nr);
11858
11859     TapeErase();
11860
11861     ResetUndoBuffer();
11862     DrawEditModeWindow();
11863   }
11864
11865   /* do not mark level as modified for certain non-level-changing gadgets */
11866   if ((type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
11867        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST) ||
11868       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
11869     return;
11870
11871   level.changed = TRUE;
11872 }
11873
11874 static void HandleControlButtons(struct GadgetInfo *gi)
11875 {
11876   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
11877   static int last_edit_mode = ED_MODE_DRAWING;
11878   static int last_custom_copy_mode = -1;
11879   static int last_button = 0;
11880   int id = gi->custom_id;
11881   int button = gi->event.button;
11882   int step = BUTTON_STEPSIZE(button);
11883   int new_element = BUTTON_ELEMENT(button);
11884   int last_properties_element = properties_element;
11885   int x, y;
11886
11887   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
11888     DrawLevelText(0, 0, 0, TEXT_END);
11889
11890   if (id < ED_NUM_CTRL1_BUTTONS &&
11891       id != GADGET_ID_SINGLE_ITEMS &&
11892       id != GADGET_ID_PICK_ELEMENT &&
11893       edit_mode != ED_MODE_DRAWING &&
11894       drawing_function != GADGET_ID_PICK_ELEMENT &&
11895       !(GetKeyModState() & KMOD_Control))
11896     ChangeEditModeWindow(ED_MODE_DRAWING);
11897
11898   /* element copy mode active, but no element button pressed => deactivate */
11899   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
11900     last_custom_copy_mode = -1;
11901
11902   /* when showing palette on element buttons, change element of button used */
11903   if (editor.palette.show_on_element_buttons &&
11904       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
11905   {
11906     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
11907
11908     id = GADGET_ID_PALETTE;
11909   }
11910
11911   switch (id)
11912   {
11913     case GADGET_ID_SCROLL_LEFT:
11914       if (level_xpos >= 0)
11915       {
11916         if (lev_fieldx < ed_fieldx - 2)
11917           break;
11918
11919         level_xpos -= step;
11920         if (level_xpos < -1)
11921           level_xpos = -1;
11922         if (button == 1)
11923           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
11924         else
11925           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11926
11927         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
11928                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
11929       }
11930       break;
11931
11932     case GADGET_ID_SCROLL_RIGHT:
11933       if (level_xpos <= lev_fieldx - ed_fieldx)
11934       {
11935         if (lev_fieldx < ed_fieldx - 2)
11936           break;
11937
11938         level_xpos += step;
11939         if (level_xpos > lev_fieldx - ed_fieldx + 1)
11940           level_xpos = lev_fieldx - ed_fieldx + 1;
11941         if (button == 1)
11942           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
11943         else
11944           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11945
11946         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
11947                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
11948       }
11949       break;
11950
11951     case GADGET_ID_SCROLL_UP:
11952       if (level_ypos >= 0)
11953       {
11954         if (lev_fieldy < ed_fieldy - 2)
11955           break;
11956
11957         level_ypos -= step;
11958         if (level_ypos < -1)
11959           level_ypos = -1;
11960         if (button == 1)
11961           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
11962         else
11963           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11964
11965         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
11966                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
11967       }
11968       break;
11969
11970     case GADGET_ID_SCROLL_DOWN:
11971       if (level_ypos <= lev_fieldy - ed_fieldy)
11972       {
11973         if (lev_fieldy < ed_fieldy - 2)
11974           break;
11975
11976         level_ypos += step;
11977         if (level_ypos > lev_fieldy - ed_fieldy + 1)
11978           level_ypos = lev_fieldy - ed_fieldy + 1;
11979         if (button == 1)
11980           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
11981         else
11982           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11983
11984         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
11985                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
11986       }
11987       break;
11988
11989     case GADGET_ID_SCROLL_HORIZONTAL:
11990       level_xpos = gi->event.item_position - 1;
11991
11992       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11993       BackToFront();
11994
11995       break;
11996
11997     case GADGET_ID_SCROLL_VERTICAL:
11998       level_ypos = gi->event.item_position - 1;
11999
12000       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
12001       BackToFront();
12002
12003       break;
12004
12005     case GADGET_ID_SCROLL_LIST_UP:
12006     case GADGET_ID_SCROLL_LIST_DOWN:
12007     case GADGET_ID_SCROLL_LIST_VERTICAL:
12008       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
12009         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
12010       else
12011       {
12012         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
12013         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
12014
12015         if (element_shift < 0)
12016           element_shift = 0;
12017         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
12018           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
12019
12020         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
12021                      GDI_SCROLLBAR_ITEM_POSITION,
12022                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
12023       }
12024
12025       ModifyEditorElementList();
12026
12027       break;
12028
12029     case GADGET_ID_PROPERTIES:
12030       // always switch off element properties when they are already displayed
12031       last_properties_element = new_element;
12032     case GADGET_ID_ELEMENT_LEFT:
12033     case GADGET_ID_ELEMENT_MIDDLE:
12034     case GADGET_ID_ELEMENT_RIGHT:
12035       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
12036                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
12037                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
12038                             new_element);
12039
12040       if (edit_mode != ED_MODE_PROPERTIES)
12041       {
12042         last_edit_mode = edit_mode;
12043
12044         ChangeEditModeWindow(ED_MODE_PROPERTIES);
12045
12046         last_level_drawing_function = drawing_function;
12047         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
12048                       MB_LEFTBUTTON);
12049       }
12050       else if (properties_element != last_properties_element)
12051       {
12052         DrawEditModeWindow();
12053       }
12054       else
12055       {
12056         ChangeEditModeWindow(last_edit_mode);
12057
12058         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
12059                       MB_LEFTBUTTON);
12060       }
12061       break;
12062
12063     case GADGET_ID_PALETTE:
12064       if (edit_mode != ED_MODE_PALETTE)
12065       {
12066         last_edit_mode = edit_mode;
12067
12068         ChangeEditModeWindow(ED_MODE_PALETTE);
12069       }
12070       else
12071       {
12072         ChangeEditModeWindow(last_edit_mode);
12073       }
12074       break;
12075
12076     case GADGET_ID_WRAP_LEFT:
12077       WrapLevel(-step, 0);
12078       break;
12079
12080     case GADGET_ID_WRAP_RIGHT:
12081       WrapLevel(step, 0);
12082       break;
12083
12084     case GADGET_ID_WRAP_UP:
12085       WrapLevel(0, -step);
12086       break;
12087
12088     case GADGET_ID_WRAP_DOWN:
12089       WrapLevel(0, step);
12090       break;
12091
12092     case GADGET_ID_SINGLE_ITEMS:
12093     case GADGET_ID_CONNECTED_ITEMS:
12094     case GADGET_ID_LINE:
12095     case GADGET_ID_ARC:
12096     case GADGET_ID_TEXT:
12097     case GADGET_ID_RECTANGLE:
12098     case GADGET_ID_FILLED_BOX:
12099     case GADGET_ID_FLOOD_FILL:
12100     case GADGET_ID_GRAB_BRUSH:
12101     case GADGET_ID_PICK_ELEMENT:
12102       if (drawing_function != GADGET_ID_PICK_ELEMENT)
12103         last_drawing_function = drawing_function;
12104       drawing_function = id;
12105       draw_with_brush = FALSE;
12106       break;
12107
12108     case GADGET_ID_RANDOM_PLACEMENT:
12109       RandomPlacement(new_element);
12110       break;
12111
12112     case GADGET_ID_ZOOM:
12113       // zoom level editor tile size in or out (or reset to default size)
12114       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
12115                      button == 2 ? DEFAULT_EDITOR_TILESIZE :
12116                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
12117
12118       // limit zoom level by upper and lower bound
12119       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
12120
12121       InitZoomLevelSettings();
12122
12123       if (edit_mode == ED_MODE_DRAWING)
12124         DrawDrawingWindow();
12125
12126       break;
12127
12128     case GADGET_ID_CUSTOM_COPY_FROM:
12129     case GADGET_ID_CUSTOM_COPY_TO:
12130     case GADGET_ID_CUSTOM_EXCHANGE:
12131       last_custom_copy_mode = id;
12132       last_drawing_function = drawing_function;
12133       break;
12134
12135     case GADGET_ID_CUSTOM_COPY:
12136       CopyCustomElement(properties_element, -1, id);
12137       break;
12138
12139     case GADGET_ID_CUSTOM_PASTE:
12140       CopyCustomElement(-1, properties_element, id);
12141       break;
12142
12143     case GADGET_ID_UNDO:
12144       if (button == 1 && undo_buffer_steps == 0)
12145       {
12146         Request("Undo buffer empty!", REQ_CONFIRM);
12147
12148         break;
12149       }
12150       else if (button == 2)
12151       {
12152         break;
12153       }
12154       else if (button == 3 && redo_buffer_steps == 0)
12155       {
12156         Request("Redo buffer empty!", REQ_CONFIRM);
12157
12158         break;
12159       }
12160
12161       if (edit_mode != ED_MODE_DRAWING)
12162         ChangeEditModeWindow(ED_MODE_DRAWING);
12163
12164       if (button == 1)
12165       {
12166         /* undo */
12167
12168         undo_buffer_position =
12169           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
12170
12171         undo_buffer_steps--;
12172         redo_buffer_steps++;
12173       }
12174       else
12175       {
12176         /* redo */
12177
12178         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
12179
12180         undo_buffer_steps++;
12181         redo_buffer_steps--;
12182       }
12183
12184       for (x = 0; x < lev_fieldx; x++)
12185         for (y = 0; y < lev_fieldy; y++)
12186           Feld[x][y] = UndoBuffer[undo_buffer_position][x][y];
12187
12188       /* check if undo operation forces change of border style */
12189       CheckLevelBorderElement(FALSE);
12190
12191       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
12192
12193       break;
12194
12195     case GADGET_ID_INFO:
12196       if (edit_mode != ED_MODE_INFO)
12197       {
12198         last_edit_mode = edit_mode;
12199
12200         ChangeEditModeWindow(ED_MODE_INFO);
12201       }
12202       else
12203       {
12204         ChangeEditModeWindow(last_edit_mode);
12205       }
12206       break;
12207
12208     case GADGET_ID_CLEAR:
12209       if (edit_mode != ED_MODE_DRAWING)
12210         ChangeEditModeWindow(ED_MODE_DRAWING);
12211
12212       for (x = 0; x < MAX_LEV_FIELDX; x++)
12213         for (y = 0; y < MAX_LEV_FIELDY; y++)
12214           Feld[x][y] = (button == 1 ? EL_EMPTY : new_element);
12215
12216       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
12217
12218       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
12219       break;
12220
12221     case GADGET_ID_SAVE:
12222     {
12223       /* saving read-only levels into personal level set modifies global vars
12224          "leveldir_current" and "level_nr"; restore them after saving level */
12225       LevelDirTree *leveldir_former = leveldir_current;
12226       int level_nr_former = level_nr;
12227       char *level_filename;
12228       boolean new_level;
12229
12230       if (leveldir_current->readonly &&
12231           !PrepareSavingIntoPersonalLevelSet())
12232         break;
12233
12234       level_filename = getDefaultLevelFilename(level_nr);
12235       new_level = !fileExists(level_filename);
12236
12237       if (new_level ||
12238           Request("Save this level and kill the old?", REQ_ASK))
12239       {
12240         if (leveldir_former->readonly)
12241           ModifyLevelInfoForSavingIntoPersonalLevelSet(leveldir_former->name);
12242
12243         CopyPlayfield(Feld, level.field);
12244         SaveLevel(level_nr);
12245
12246         level.changed = FALSE;
12247
12248         if (new_level)
12249         {
12250           char level_saved_msg[64];
12251
12252           if (leveldir_former->readonly)
12253             sprintf(level_saved_msg,
12254                     "Level saved as level %d into personal level set!",
12255                     level_nr);
12256           else
12257             strcpy(level_saved_msg, "Level saved!");
12258
12259           Request(level_saved_msg, REQ_CONFIRM);
12260         }
12261       }
12262
12263       /* "cd" back to copied-from levelset (in case of saved read-only level) */
12264       leveldir_current = leveldir_former;
12265       level_nr = level_nr_former;
12266
12267       break;
12268     }
12269
12270     case GADGET_ID_TEST:
12271       if (LevelChanged())
12272         level.game_version = GAME_VERSION_ACTUAL;
12273
12274       CopyPlayfield(level.field, FieldBackup);
12275       CopyPlayfield(Feld, level.field);
12276
12277       CopyNativeLevel_RND_to_Native(&level);
12278
12279       UnmapLevelEditorGadgets();
12280       UndrawSpecialEditorDoor();
12281
12282       CloseDoor(DOOR_CLOSE_ALL);
12283
12284       /* needed before playing if editor playfield area has different size */
12285       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
12286
12287       // redraw_mask = REDRAW_ALL;
12288
12289       level_editor_test_game = TRUE;
12290
12291       StartGameActions(FALSE, setup.autorecord, level.random_seed);
12292
12293       break;
12294
12295     case GADGET_ID_EXIT:
12296       RequestExitLevelEditor(TRUE, FALSE);  /* if level has changed, ask user */
12297       break;
12298
12299     default:
12300       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
12301           id <= GADGET_ID_ELEMENTLIST_LAST)
12302       {
12303         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
12304         int new_element = editor_elements[element_position + element_shift];
12305
12306         if (IS_EDITOR_CASCADE(new_element))
12307         {
12308           int i;
12309
12310           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
12311           {
12312             int *cascade_element= &(*editor_elements_info[i].headline_list)[0];
12313             boolean *cascade_value=editor_elements_info[i].setup_cascade_value;
12314
12315             if (*cascade_element == new_element)
12316             {
12317               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
12318               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
12319
12320               /* update element selection list */
12321               ReinitializeElementList();
12322               ModifyEditorElementList();
12323
12324               /* update cascading gadget info text */
12325               PrintEditorGadgetInfoText(level_editor_gadget[id]);
12326
12327               /* save current editor cascading state */
12328               SaveSetup_EditorCascade();
12329
12330               break;
12331             }
12332           }
12333
12334           break;
12335         }
12336
12337         if (last_custom_copy_mode != -1)
12338         {
12339           if (CopyCustomElement(properties_element, new_element,
12340                                 last_custom_copy_mode))
12341           {
12342             ClickOnGadget(level_editor_gadget[last_drawing_function],
12343                           MB_LEFTBUTTON);
12344
12345             last_custom_copy_mode = -1;
12346           }
12347
12348           break;
12349         }
12350
12351         /* change element of button used to show palette */
12352         if (editor.palette.show_on_element_buttons)
12353           button = last_button;
12354
12355         PickDrawingElement(button, new_element);
12356
12357         if (!stick_element_properties_window &&
12358             drawing_function != GADGET_ID_PICK_ELEMENT &&
12359             !(GetKeyModState() & KMOD_Control))
12360         {
12361           properties_element = new_element;
12362           if (edit_mode == ED_MODE_PROPERTIES)
12363             DrawPropertiesWindow();
12364         }
12365
12366         if (drawing_function == GADGET_ID_PICK_ELEMENT)
12367           ClickOnGadget(level_editor_gadget[last_drawing_function],
12368                         MB_LEFTBUTTON);
12369
12370         if (!use_permanent_palette)
12371           ChangeEditModeWindow(last_edit_mode);
12372       }
12373 #ifdef DEBUG
12374       else if (gi->event.type == GD_EVENT_PRESSED)
12375         printf("default: HandleControlButtons: GD_EVENT_PRESSED(%d)\n", id);
12376       else if (gi->event.type == GD_EVENT_RELEASED)
12377         printf("default: HandleControlButtons: GD_EVENT_RELEASED(%d)\n", id);
12378       else if (gi->event.type == GD_EVENT_MOVING)
12379         printf("default: HandleControlButtons: GD_EVENT_MOVING(%d)\n", id);
12380       else
12381         printf("default: HandleControlButtons: ? (id == %d)\n", id);
12382 #endif
12383       break;
12384   }
12385 }
12386
12387 void HandleLevelEditorKeyInput(Key key)
12388 {
12389   char letter = getCharFromKey(key);
12390   int button = MB_LEFTBUTTON;
12391
12392   if (drawing_function == GADGET_ID_TEXT &&
12393       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
12394   {
12395     if (letter)
12396       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
12397     else if (key == KSYM_Delete || key == KSYM_BackSpace)
12398       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
12399     else if (key == KSYM_Return)
12400       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
12401     else if (key == KSYM_Escape)
12402       DrawLevelText(0, 0, 0, TEXT_END);
12403   }
12404   else if (button_status == MB_RELEASED)
12405   {
12406     int id = GADGET_ID_NONE;
12407     int new_element_shift = element_shift;
12408     int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
12409     int i;
12410
12411     switch (key)
12412     {
12413       case KSYM_Left:
12414         id = GADGET_ID_SCROLL_LEFT;
12415         break;
12416       case KSYM_Right:
12417         id = GADGET_ID_SCROLL_RIGHT;
12418         break;
12419       case KSYM_Up:
12420         id = GADGET_ID_SCROLL_UP;
12421         break;
12422       case KSYM_Down:
12423         id = GADGET_ID_SCROLL_DOWN;
12424         break;
12425
12426       case KSYM_Page_Up:
12427       case KSYM_Page_Down:
12428         step *= (key == KSYM_Page_Up ? -1 : +1);
12429         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
12430
12431         if (element_shift < 0)
12432           element_shift = 0;
12433         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
12434           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
12435
12436         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
12437                      GDI_SCROLLBAR_ITEM_POSITION,
12438                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
12439
12440         ModifyEditorElementList();
12441
12442         break;
12443
12444       case KSYM_Home:
12445       case KSYM_End:
12446         element_shift = (key == KSYM_Home ? 0 :
12447                          num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
12448
12449         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
12450                      GDI_SCROLLBAR_ITEM_POSITION,
12451                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
12452
12453         ModifyEditorElementList();
12454
12455         break;
12456
12457       case KSYM_Insert:
12458       case KSYM_Delete:
12459
12460         /* this is needed to prevent interference with running "True X-Mouse" */
12461         if (GetKeyModStateFromEvents() & KMOD_Control)
12462           break;
12463
12464         /* check for last or next editor cascade block in element list */
12465         for (i = 0; i < num_editor_elements; i++)
12466         {
12467           if ((key == KSYM_Insert && i == element_shift) ||
12468               (key == KSYM_Delete && new_element_shift > element_shift))
12469             break;
12470
12471           /* jump to next cascade block (or to start of element list) */
12472           if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
12473             new_element_shift = i;
12474         }
12475
12476         if (i < num_editor_elements)
12477           element_shift = new_element_shift;
12478
12479         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
12480           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
12481
12482         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
12483                      GDI_SCROLLBAR_ITEM_POSITION,
12484                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
12485
12486         ModifyEditorElementList();
12487
12488         break;
12489
12490       case KSYM_Escape:
12491         if (edit_mode == ED_MODE_DRAWING)
12492         {
12493           RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
12494         }
12495         else if (edit_mode == ED_MODE_INFO)
12496         {
12497           HandleControlButtons(level_editor_gadget[GADGET_ID_INFO]);
12498         }
12499         else if (edit_mode == ED_MODE_PROPERTIES)
12500         {
12501           HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
12502         }
12503         else if (edit_mode == ED_MODE_PALETTE)
12504         {
12505           HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
12506         }
12507         else            /* should never happen */
12508         {
12509           ChangeEditModeWindow(ED_MODE_DRAWING);
12510         }
12511
12512         break;
12513
12514       default:
12515         break;
12516     }
12517
12518     if (id != GADGET_ID_NONE)
12519       ClickOnGadget(level_editor_gadget[id], button);
12520     else if (letter == '1' || letter == '?')
12521       ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
12522     else if (letter == '2')
12523       ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
12524     else if (letter == '3')
12525       ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
12526     else if (letter == '.')
12527       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
12528     else if (letter == 'U')
12529       ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
12530     else if (letter == '-' || key == KSYM_KP_Subtract)
12531       ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
12532     else if (letter == '0' || key == KSYM_KP_0)
12533       ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
12534     else if (letter == '+' || key == KSYM_KP_Add ||
12535              letter == '=')     // ("Shift-=" is "+" on US keyboards)
12536       ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
12537     else if (key == KSYM_Return ||
12538              key == KSYM_space ||
12539              key == setup.shortcut.toggle_pause)
12540       ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
12541     else
12542       for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
12543         if (letter && letter == controlbutton_info[i].shortcut)
12544           if (!anyTextGadgetActive())
12545             ClickOnGadget(level_editor_gadget[i], button);
12546   }
12547 }
12548
12549 void HandleLevelEditorIdle()
12550 {
12551   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
12552   int x = editor.settings.element_graphic.x + element_border;
12553   int y = editor.settings.element_graphic.y + element_border;
12554   static unsigned int action_delay = 0;
12555   unsigned int action_delay_value = GameFrameDelay;
12556   int i;
12557
12558   if (edit_mode != ED_MODE_PROPERTIES)
12559     return;
12560
12561   if (!DelayReached(&action_delay, action_delay_value))
12562     return;
12563
12564   for (i = 0; i < ED_NUM_SELECTBOX; i++)
12565   {
12566     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
12567
12568     if (gi->mapped && gi->active && gi->selectbox.open)
12569       return;
12570   }
12571
12572   DrawEditorElementAnimation(SX + x, SY + y);
12573
12574   redraw_mask |= REDRAW_FIELD;
12575
12576   FrameCounter++;       /* increase animation frame counter */
12577 }
12578
12579 void ClearEditorGadgetInfoText()
12580 {
12581   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
12582 }
12583
12584 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
12585 {
12586   char infotext[MAX_OUTPUT_LINESIZE + 1];
12587   char shortcut[MAX_OUTPUT_LINESIZE + 1];
12588   int max_infotext_len = getMaxInfoTextLength();
12589
12590   if (gi == NULL || strlen(gi->info_text) == 0)
12591     return;
12592
12593   strncpy(infotext, gi->info_text, max_infotext_len);
12594   infotext[max_infotext_len] = '\0';
12595
12596   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
12597   {
12598     int key = controlbutton_info[gi->custom_id].shortcut;
12599
12600     if (key)
12601     {
12602       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
12603         sprintf(shortcut, " ('.' or '%c')", key);
12604       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
12605         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
12606       else if (gi->custom_id == GADGET_ID_TEST)
12607         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
12608       else if (gi->custom_id == GADGET_ID_UNDO)
12609         sprintf(shortcut, " ('%c/Shift-U')", key);
12610       else if (gi->custom_id == GADGET_ID_ZOOM)
12611         sprintf(shortcut, " ('%c', '0', '+')", key);
12612       else
12613         sprintf(shortcut, " ('%s%c')",
12614                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
12615
12616       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
12617         strcat(infotext, shortcut);
12618     }
12619   }
12620
12621   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
12622 }
12623
12624 void HandleEditorGadgetInfoText(void *ptr)
12625 {
12626   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
12627
12628   if (game_status != GAME_MODE_EDITOR)
12629     return;
12630
12631   ClearEditorGadgetInfoText();
12632
12633   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
12634     return;
12635
12636   /* misuse this function to delete brush cursor, if needed */
12637   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
12638     DeleteBrushFromCursor();
12639
12640   PrintEditorGadgetInfoText(gi);
12641 }
12642
12643 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
12644 {
12645   static int start_lx, start_ly;
12646   int id = gi->custom_id;
12647   int type_id = gi->custom_type_id;
12648   int sx = gi->event.x;
12649   int sy = gi->event.y;
12650   int lx = sx + level_xpos;
12651   int ly = sy + level_ypos;
12652   int min_sx = 0, min_sy = 0;
12653   int max_sx = gi->drawing.area_xsize - 1;
12654   int max_sy = gi->drawing.area_ysize - 1;
12655   int actual_drawing_function = drawing_function;
12656   int max_infotext_len = getMaxInfoTextLength();
12657   char infotext[MAX_OUTPUT_LINESIZE + 1];
12658   char *text;
12659
12660   infotext[0] = '\0';           /* start with empty info text */
12661
12662   /* pressed Control key: simulate picking element */
12663   if (GetKeyModState() & KMOD_Control)
12664     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
12665
12666   ClearEditorGadgetInfoText();
12667
12668   if (gi->event.type == GD_EVENT_INFO_LEAVING)
12669     return;
12670
12671   /* make sure to stay inside drawing area boundaries */
12672   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
12673   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
12674
12675   if (id == GADGET_ID_DRAWING_LEVEL)
12676   {
12677     if (button_status)
12678     {
12679       int min_lx = 0, min_ly = 0;
12680       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
12681
12682       /* get positions inside level field */
12683       lx = sx + level_xpos;
12684       ly = sy + level_ypos;
12685
12686       /* make sure to stay inside level field boundaries */
12687       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
12688       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
12689
12690       /* correct drawing area positions accordingly */
12691       sx = lx - level_xpos;
12692       sy = ly - level_ypos;
12693     }
12694
12695     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
12696     {
12697       if (button_status)        /* if (gi->state == GD_BUTTON_PRESSED) */
12698       {
12699         if (gi->event.type == GD_EVENT_PRESSED)
12700         {
12701           start_lx = lx;
12702           start_ly = ly;
12703         }
12704
12705         switch (actual_drawing_function)
12706         {
12707           case GADGET_ID_SINGLE_ITEMS:
12708             text = "Drawing single items";
12709             break;
12710           case GADGET_ID_CONNECTED_ITEMS:
12711             text = "Drawing connected items";
12712             break;
12713           case GADGET_ID_LINE:
12714             text = "Drawing line";
12715             break;
12716           case GADGET_ID_ARC:
12717             text = "Drawing arc";
12718             break;
12719           case GADGET_ID_TEXT:
12720             text = "Setting text cursor";
12721             break;
12722           case GADGET_ID_RECTANGLE:
12723             text = "Drawing rectangle";
12724             break;
12725           case GADGET_ID_FILLED_BOX:
12726             text = "Drawing filled box";
12727             break;
12728           case GADGET_ID_FLOOD_FILL:
12729             text = "Flood fill";
12730             break;
12731           case GADGET_ID_GRAB_BRUSH:
12732             text = "Grabbing brush";
12733             break;
12734           case GADGET_ID_PICK_ELEMENT:
12735             text = "Picking element";
12736             break;
12737
12738           default:
12739             text = "Drawing position";
12740             break;
12741         }
12742
12743         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
12744           sprintf(infotext, "%s: %d, %d", text, lx, ly);
12745         else
12746           sprintf(infotext, "%s: %d, %d", text,
12747                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
12748       }
12749       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
12750         strncpy(infotext, getElementInfoText(Feld[lx][ly]), max_infotext_len);
12751       else
12752         sprintf(infotext, "Level position: %d, %d", lx, ly);
12753     }
12754
12755     /* misuse this function to draw brush cursor, if needed */
12756     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
12757     {
12758       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12759         CopyBrushToCursor(sx, sy);
12760       else
12761         DeleteBrushFromCursor();
12762     }
12763   }
12764   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
12765   {
12766     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
12767     int element = drawingarea_info[type_id].value[pos];
12768
12769     strncpy(infotext, getElementInfoText(element), max_infotext_len);
12770   }
12771   else
12772   {
12773     if (id == GADGET_ID_CUSTOM_CONTENT)
12774       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
12775     else if (id == GADGET_ID_GROUP_CONTENT)
12776       sprintf(infotext, "group element position: %d", sx + 1);
12777     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
12778              id <= GADGET_ID_YAMYAM_CONTENT_7)
12779       sprintf(infotext, "content area %d position: %d, %d",
12780               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
12781     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
12782              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
12783       sprintf(infotext, "content area %d position: %d, %d",
12784               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
12785     else if (id == GADGET_ID_ANDROID_CONTENT)
12786       sprintf(infotext, "android element position: %d", sx + 1);
12787     else if (drawingarea_info[type_id].infotext != NULL)
12788       strcpy(infotext, drawingarea_info[type_id].infotext);
12789   }
12790
12791   infotext[max_infotext_len] = '\0';
12792
12793   if (strlen(infotext) > 0)
12794     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
12795 }
12796
12797 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
12798                             boolean quick_quit)
12799 {
12800   if (!ask_if_level_has_changed ||
12801       !LevelChanged() ||
12802       Request("Level has changed! Exit without saving?",
12803               REQ_ASK | REQ_STAY_OPEN))
12804   {
12805     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
12806     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
12807
12808     /* draw normal door */
12809     UndrawSpecialEditorDoor();
12810
12811     // close editor doors if viewport definition is the same as in main menu
12812     if (vp_door_1->x      == DX     &&
12813         vp_door_1->y      == DY     &&
12814         vp_door_1->width  == DXSIZE &&
12815         vp_door_1->height == DYSIZE &&
12816         vp_door_2->x      == VX     &&
12817         vp_door_2->y      == VY     &&
12818         vp_door_2->width  == VXSIZE &&
12819         vp_door_2->height == VYSIZE)
12820       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
12821     else
12822       SetDoorState(DOOR_CLOSE_2);
12823
12824     BackToFront();
12825
12826     if (quick_quit)
12827       FadeSkipNextFadeIn();
12828
12829     SetGameStatus(GAME_MODE_MAIN);
12830
12831     DrawMainMenu();
12832   }
12833   else
12834   {
12835     if (!global.use_envelope_request)
12836     {
12837       CloseDoor(DOOR_CLOSE_1);
12838       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
12839     }
12840   }
12841 }