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