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