src/editor.c

   1 // ============================================================================
   2 // Rocks'n'Diamonds - McDuffin Strikes Back!
   3 // ----------------------------------------------------------------------------
   4 // (c) 1995-2014 by Artsoft Entertainment
   5 //                  Holger Schemel
   6 //                  info@artsoft.org
   7 //                  https://www.artsoft.org/
   8 // ----------------------------------------------------------------------------
   9 // editor.c
  10 // ============================================================================
  11
  12 #include <math.h>
  13
  14 #include "libgame/libgame.h"
  15
  16 #include "editor.h"
  17 #include "screens.h"
  18 #include "tools.h"
  19 #include "files.h"
  20 #include "game.h"
  21 #include "init.h"
  22 #include "tape.h"
  23
  24
  25 #define INFOTEXT_UNKNOWN_ELEMENT        "unknown"
  26
  27
  28 // ----------------------------------------------------------------------------
  29 // screen and artwork graphic pixel position definitions
  30 // ----------------------------------------------------------------------------
  31
  32 // values for the control window
  33 #define ED_CTRL1_BUTTONS_HORIZ          4       // toolbox
  34 #define ED_CTRL1_BUTTONS_VERT           4
  35 #define ED_CTRL2_BUTTONS_HORIZ          3       // level
  36 #define ED_CTRL2_BUTTONS_VERT           2
  37 #define ED_CTRL3_BUTTONS_HORIZ          3       // CE and GE
  38 #define ED_CTRL3_BUTTONS_VERT           1
  39 #define ED_CTRL4_BUTTONS_HORIZ          2       // CE and GE
  40 #define ED_CTRL4_BUTTONS_VERT           1
  41 #define ED_CTRL5_BUTTONS_HORIZ          1       // properties
  42 #define ED_CTRL5_BUTTONS_VERT           1
  43 #define ED_CTRL6_BUTTONS_HORIZ          3       // properties
  44 #define ED_CTRL6_BUTTONS_VERT           1
  45 #define ED_CTRL7_BUTTONS_HORIZ          1       // palette
  46 #define ED_CTRL7_BUTTONS_VERT           1
  47
  48 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  49 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  50 #define ED_NUM_CTRL3_BUTTONS   (ED_CTRL3_BUTTONS_HORIZ * ED_CTRL3_BUTTONS_VERT)
  51 #define ED_NUM_CTRL4_BUTTONS   (ED_CTRL4_BUTTONS_HORIZ * ED_CTRL4_BUTTONS_VERT)
  52 #define ED_NUM_CTRL5_BUTTONS   (ED_CTRL5_BUTTONS_HORIZ * ED_CTRL5_BUTTONS_VERT)
  53 #define ED_NUM_CTRL6_BUTTONS   (ED_CTRL6_BUTTONS_HORIZ * ED_CTRL6_BUTTONS_VERT)
  54 #define ED_NUM_CTRL7_BUTTONS   (ED_CTRL7_BUTTONS_HORIZ * ED_CTRL7_BUTTONS_VERT)
  55 #define ED_NUM_CTRL1_2_BUTTONS (ED_NUM_CTRL1_BUTTONS   + ED_NUM_CTRL2_BUTTONS)
  56 #define ED_NUM_CTRL1_3_BUTTONS (ED_NUM_CTRL1_2_BUTTONS + ED_NUM_CTRL3_BUTTONS)
  57 #define ED_NUM_CTRL1_4_BUTTONS (ED_NUM_CTRL1_3_BUTTONS + ED_NUM_CTRL4_BUTTONS)
  58 #define ED_NUM_CTRL1_5_BUTTONS (ED_NUM_CTRL1_4_BUTTONS + ED_NUM_CTRL5_BUTTONS)
  59 #define ED_NUM_CTRL1_6_BUTTONS (ED_NUM_CTRL1_5_BUTTONS + ED_NUM_CTRL6_BUTTONS)
  60 #define ED_NUM_CTRL1_7_BUTTONS (ED_NUM_CTRL1_6_BUTTONS + ED_NUM_CTRL7_BUTTONS)
  61 #define ED_NUM_CTRL_BUTTONS    ED_NUM_CTRL1_7_BUTTONS
  62
  63 // values for the element list
  64 #define ED_ELEMENTLIST_XPOS             (editor.palette.x)
  65 #define ED_ELEMENTLIST_YPOS             (editor.palette.y)
  66 #define ED_ELEMENTLIST_XSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].width)
  67 #define ED_ELEMENTLIST_YSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].height)
  68 #define ED_ELEMENTLIST_COLS             MAX(1, editor.palette.cols)
  69 #define ED_ELEMENTLIST_ROWS             MAX(1, editor.palette.rows)
  70 #define ED_ELEMENTLIST_BUTTONS_HORIZ    (ED_ELEMENTLIST_COLS)
  71 #define ED_ELEMENTLIST_BUTTONS_VERT     (ED_ELEMENTLIST_ROWS)
  72 #define ED_NUM_ELEMENTLIST_BUTTONS      (ED_ELEMENTLIST_BUTTONS_HORIZ * \
  73                                          ED_ELEMENTLIST_BUTTONS_VERT)
  74
  75 // standard distances
  76 #define ED_GADGET_NORMAL_DISTANCE       (editor.gadget.normal_spacing)
  77 #define ED_GADGET_SMALL_DISTANCE        (editor.gadget.small_spacing)
  78 #define ED_GADGET_TINY_DISTANCE         (editor.gadget.tiny_spacing)
  79 #define ED_GADGET_LINE_DISTANCE         (editor.gadget.line_spacing)
  80 #define ED_GADGET_TEXT_DISTANCE         (editor.gadget.text_spacing)
  81 #define ED_TAB_BAR_HEIGHT               (editor.gadget.separator_line.height)
  82 #define ED_DRAWINGAREA_TEXT_DISTANCE    (ED_GADGET_TEXT_DISTANCE +      \
  83                                          ED_DRAWINGAREA_BORDER_SIZE)
  84 #define ED_GADGET_SPACE_DISTANCE        (getFontWidth(FONT_TEXT_1))
  85
  86 // values for drawingarea gadgets
  87 #define IMG_BORDER_1                    IMG_EDITOR_ELEMENT_BORDER
  88 #define IMG_BORDER_2                    IMG_EDITOR_ELEMENT_BORDER_INPUT
  89 #define ED_ELEMENT_BORDER               (graphic_info[IMG_BORDER_1].border_size)
  90 #define ED_DRAWINGAREA_BORDER_SIZE      (graphic_info[IMG_BORDER_2].border_size)
  91 #define ED_DRAWINGAREA_TILE_SIZE        (editor.drawingarea.tile_size)
  92
  93 // values for checkbutton gadgets
  94 #define ED_CHECKBUTTON_XSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].width)
  95 #define ED_CHECKBUTTON_YSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].height)
  96
  97 #define ED_TABBUTTON_XSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].width)
  98 #define ED_TABBUTTON_YSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].height)
  99
 100 #define ED_SETTINGS_LEVEL_TABS_X        (editor.settings.tabs.x)
 101 #define ED_SETTINGS_LEVEL_TABS_Y        (editor.settings.tabs.y)
 102 #define ED_SETTINGS_ELEMENT_TABS_X      (editor.settings.tabs.x)
 103 #define ED_SETTINGS_ELEMENT_TABS_Y      (editor.settings.tabs.y +       \
 104                                          editor.settings.tabs.yoffset2)
 105
 106 #define ED_SETTINGS_TABS_XOFFSET        (editor.settings.tabs.draw_xoffset)
 107 #define ED_SETTINGS_TABS_YOFFSET        (editor.settings.tabs.draw_yoffset)
 108
 109 #define ED_LEVEL_TABS_XSTART            (ED_SETTINGS_LEVEL_TABS_X)
 110 #define ED_LEVEL_TABS_YSTART            (ED_SETTINGS_LEVEL_TABS_Y)
 111 #define ED_LEVEL_SETTINGS_XSTART        (ED_SETTINGS_LEVEL_TABS_X +     \
 112                                          ED_SETTINGS_TABS_XOFFSET)
 113 #define ED_LEVEL_SETTINGS_YSTART        (ED_SETTINGS_LEVEL_TABS_Y +     \
 114                                          ED_TABBUTTON_YSIZE +           \
 115                                          ED_GADGET_TINY_DISTANCE +      \
 116                                          ED_TAB_BAR_HEIGHT +            \
 117                                          ED_SETTINGS_TABS_YOFFSET +     \
 118                                          getFontHeight(FONT_TEXT_1) +   \
 119                                          ED_GADGET_TEXT_DISTANCE)
 120 #define ED_ELEMENT_TABS_XSTART          (ED_SETTINGS_ELEMENT_TABS_X)
 121 #define ED_ELEMENT_TABS_YSTART          (ED_SETTINGS_ELEMENT_TABS_Y)
 122 #define ED_ELEMENT_SETTINGS_XSTART      (ED_SETTINGS_ELEMENT_TABS_X +   \
 123                                          ED_SETTINGS_TABS_XOFFSET)
 124 #define ED_ELEMENT_SETTINGS_YSTART      (ED_SETTINGS_ELEMENT_TABS_Y +   \
 125                                          ED_TABBUTTON_YSIZE +           \
 126                                          ED_GADGET_TINY_DISTANCE +      \
 127                                          ED_TAB_BAR_HEIGHT +            \
 128                                          ED_SETTINGS_TABS_YOFFSET)
 129
 130 #define ED_SETTINGS_XOFFSET             (ED_CHECKBUTTON_XSIZE +         \
 131                                          ED_GADGET_TEXT_DISTANCE)
 132 #define ED_SETTINGS_YOFFSET             (ED_CHECKBUTTON_YSIZE +         \
 133                                          ED_GADGET_LINE_DISTANCE)
 134
 135 #define ED_POS_RANGE                    (10000)
 136 #define ED_POS_LEVEL_TABS_FIRST         (1 * ED_POS_RANGE)
 137 #define ED_POS_LEVEL_TABS_LAST          (2 * ED_POS_RANGE - 1)
 138 #define ED_POS_LEVEL_SETTINGS_FIRST     (2 * ED_POS_RANGE)
 139 #define ED_POS_LEVEL_SETTINGS_LAST      (3 * ED_POS_RANGE - 1)
 140 #define ED_POS_ELEMENT_TABS_FIRST       (3 * ED_POS_RANGE)
 141 #define ED_POS_ELEMENT_TABS_LAST        (4 * ED_POS_RANGE - 1)
 142 #define ED_POS_ELEMENT_SETTINGS_FIRST   (4 * ED_POS_RANGE)
 143 #define ED_POS_ELEMENT_SETTINGS_LAST    (5 * ED_POS_RANGE - 1)
 144
 145 #define ED_LEVEL_TABS_XPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 146 #define ED_LEVEL_TABS_YPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 147
 148 #define ED_LEVEL_SETTINGS_XPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 149 #define ED_LEVEL_SETTINGS_YPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 150
 151 #define ED_ELEMENT_TABS_XPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 152 #define ED_ELEMENT_TABS_YPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 153
 154 #define ED_ELEMENT_SETTINGS_XPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 155 #define ED_ELEMENT_SETTINGS_YPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 156
 157 #define IS_POS_LEVEL_TABS(n)          ((n) >= ED_POS_LEVEL_TABS_FIRST && \
 158                                        (n) <= ED_POS_LEVEL_TABS_LAST)
 159 #define IS_POS_LEVEL_SETTINGS(n)      ((n) >= ED_POS_LEVEL_SETTINGS_FIRST && \
 160                                        (n) <= ED_POS_LEVEL_SETTINGS_LAST)
 161 #define IS_POS_ELEMENT_TABS(n)        ((n) >= ED_POS_ELEMENT_TABS_FIRST && \
 162                                        (n) <= ED_POS_ELEMENT_TABS_LAST)
 163 #define IS_POS_ELEMENT_SETTINGS(n)    ((n) >= ED_POS_ELEMENT_SETTINGS_FIRST && \
 164                                        (n) <= ED_POS_ELEMENT_SETTINGS_LAST)
 165
 166 #define ED_LEVEL_TABS_LINE(n)           ((n) - ED_POS_LEVEL_TABS_FIRST)
 167 #define ED_LEVEL_SETTINGS_LINE(n)       ((n) - ED_POS_LEVEL_SETTINGS_FIRST)
 168 #define ED_ELEMENT_TABS_LINE(n)         ((n) - ED_POS_ELEMENT_TABS_FIRST)
 169 #define ED_ELEMENT_SETTINGS_LINE(n)     ((n) - ED_POS_ELEMENT_SETTINGS_FIRST)
 170
 171 #define ED_LEVEL_TABS_X(n)              (ED_LEVEL_TABS_XSTART + \
 172                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 173 #define ED_LEVEL_TABS_Y(n)              (ED_LEVEL_TABS_YSTART + \
 174                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 175
 176 #define ED_LEVEL_SETTINGS_X(n)          (ED_LEVEL_SETTINGS_XSTART +     \
 177                                          (n) * ED_SETTINGS_XOFFSET)
 178 #define ED_LEVEL_SETTINGS_Y(n)          (ED_LEVEL_SETTINGS_YSTART +     \
 179                                          (n) * ED_SETTINGS_YOFFSET)
 180
 181 #define ED_ELEMENT_TABS_X(n)            (ED_ELEMENT_TABS_XSTART +       \
 182                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 183 #define ED_ELEMENT_TABS_Y(n)            (ED_ELEMENT_TABS_YSTART +       \
 184                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 185
 186 #define ED_ELEMENT_SETTINGS_X(n)        (ED_ELEMENT_SETTINGS_XSTART +   \
 187                                          (n) * ED_SETTINGS_XOFFSET)
 188 #define ED_ELEMENT_SETTINGS_Y(n)        (ED_ELEMENT_SETTINGS_YSTART +   \
 189                                          (n) * ED_SETTINGS_YOFFSET)
 190
 191 #define ED_POS_TO_LEVEL_TABS_X(n)       \
 192   (ED_LEVEL_TABS_X(ED_LEVEL_TABS_LINE(n)))
 193 #define ED_POS_TO_LEVEL_TABS_Y(n)       \
 194   (ED_LEVEL_TABS_Y(ED_LEVEL_TABS_LINE(n)))
 195
 196 #define ED_POS_TO_LEVEL_SETTINGS_X(n)   \
 197   (ED_LEVEL_SETTINGS_X(ED_LEVEL_SETTINGS_LINE(n)))
 198 #define ED_POS_TO_LEVEL_SETTINGS_Y(n)   \
 199   (ED_LEVEL_SETTINGS_Y(ED_LEVEL_SETTINGS_LINE(n)))
 200
 201 #define ED_POS_TO_ELEMENT_TABS_X(n)     \
 202   (ED_ELEMENT_TABS_X(ED_ELEMENT_TABS_LINE(n)))
 203 #define ED_POS_TO_ELEMENT_TABS_Y(n)     \
 204   (ED_ELEMENT_TABS_Y(ED_ELEMENT_TABS_LINE(n)))
 205
 206 #define ED_POS_TO_ELEMENT_SETTINGS_X(n) \
 207   (ED_ELEMENT_SETTINGS_X(ED_ELEMENT_SETTINGS_LINE(n)))
 208 #define ED_POS_TO_ELEMENT_SETTINGS_Y(n) \
 209   (ED_ELEMENT_SETTINGS_Y(ED_ELEMENT_SETTINGS_LINE(n)))
 210
 211 #define ED_SETTINGS_X(n)                (IS_POS_LEVEL_TABS(n) ? \
 212                                          ED_POS_TO_LEVEL_TABS_X(n) : \
 213                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 214                                          ED_POS_TO_LEVEL_SETTINGS_X(n) : \
 215                                          IS_POS_ELEMENT_TABS(n) ?       \
 216                                          ED_POS_TO_ELEMENT_TABS_X(n) : \
 217                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 218                                          ED_POS_TO_ELEMENT_SETTINGS_X(n) : (n))
 219 #define ED_SETTINGS_Y(n)                (IS_POS_LEVEL_TABS(n) ? \
 220                                          ED_POS_TO_LEVEL_TABS_Y(n) : \
 221                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 222                                          ED_POS_TO_LEVEL_SETTINGS_Y(n) : \
 223                                          IS_POS_ELEMENT_TABS(n) ?       \
 224                                          ED_POS_TO_ELEMENT_TABS_Y(n) : \
 225                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 226                                          ED_POS_TO_ELEMENT_SETTINGS_Y(n) : (n))
 227
 228 #define ED_SETTINGS_XOFF(n)             (5 * ((n) % 4) *                \
 229                                          ED_DRAWINGAREA_TILE_SIZE)
 230 #define ED_SETTINGS_YOFF(n)             (5 * ((n) / 4) *                \
 231                                          ED_DRAWINGAREA_TILE_SIZE)
 232
 233 #define ED_AREA_XOFFSET_1(n)            ((n) != 0 ?                     \
 234                                          ED_DRAWINGAREA_BORDER_SIZE : 0)
 235 #define ED_AREA_YOFFSET_1(n)            ((n) != 0 ?                     \
 236                                          (ED_CHECKBUTTON_YSIZE -        \
 237                                           ED_DRAWINGAREA_TILE_SIZE) / 2 : 0)
 238
 239 #define ED_AREA_XOFFSET_2(n)      (0)
 240 #define ED_AREA_YOFFSET_2(n)      ((n) == 3 ?                   \
 241                                    ((n) - 1) * ED_DRAWINGAREA_TILE_SIZE / 2 : 0)
 242
 243 #define ED_AREA_SETTINGS_X(i)      (ED_SETTINGS_X((i).x) +              \
 244                                     ED_SETTINGS_XOFF((i).xoffset) +     \
 245                                     ED_AREA_XOFFSET_1((i).x) -          \
 246                                     ED_AREA_XOFFSET_2((i).area_xsize))
 247 #define ED_AREA_SETTINGS_Y(i)      (ED_SETTINGS_Y((i).y) +              \
 248                                     ED_SETTINGS_YOFF((i).yoffset) +     \
 249                                     ED_AREA_YOFFSET_1((i).y) -          \
 250                                     ED_AREA_YOFFSET_2((i).area_ysize))
 251
 252 // values for element content drawing areas
 253 #define ED_AREA_1X1_LSETTINGS_XPOS(n)   ED_LEVEL_SETTINGS_XPOS(n)
 254 #define ED_AREA_1X1_LSETTINGS_YPOS(n)   ED_LEVEL_SETTINGS_YPOS(n)
 255 #define ED_AREA_1X1_LSETTINGS_XOFF      (0)
 256 #define ED_AREA_1X1_LSETTINGS_YOFF      (0)
 257
 258 #define ED_AREA_1X1_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 259 #define ED_AREA_1X1_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 260 #define ED_AREA_1X1_SETTINGS_XOFF       (0)
 261 #define ED_AREA_1X1_SETTINGS_YOFF       (0)
 262
 263 #define ED_AREA_3X3_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 264 #define ED_AREA_3X3_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 265 #define ED_AREA_3X3_SETTINGS_XOFF       (0)
 266 #define ED_AREA_3X3_SETTINGS_YOFF       (0)
 267
 268 // element content
 269 #define ED_AREA_ELEMENT_CONTENT_XOFF(n) (n)
 270 #define ED_AREA_ELEMENT_CONTENT_YOFF(n) (n)
 271
 272 // yamyam content
 273 #define ED_XPOS_YAM                     0
 274 #define ED_YPOS_YAM                     5
 275 #define ED_AREA_YAMYAM_CONTENT_XPOS     ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_YAM)
 276 #define ED_AREA_YAMYAM_CONTENT_YPOS     ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_YAM)
 277 #define ED_AREA_YAMYAM_CONTENT_XOFF(n)  ED_AREA_ELEMENT_CONTENT_XOFF(n)
 278 #define ED_AREA_YAMYAM_CONTENT_YOFF(n)  ED_AREA_ELEMENT_CONTENT_YOFF(n)
 279 #define ED_AREA_YAMYAM_CONTENT_X(n)     (ED_ELEMENT_SETTINGS_X(ED_XPOS_YAM) + \
 280                                          ED_SETTINGS_XOFF(n))
 281 #define ED_AREA_YAMYAM_CONTENT_Y(n)     (ED_ELEMENT_SETTINGS_Y(ED_YPOS_YAM) + \
 282                                          ED_SETTINGS_YOFF(n) +          \
 283                                          ED_AREA_YOFFSET_1(ED_YPOS_YAM) - \
 284                                          ED_AREA_YOFFSET_2(3))
 285
 286 // magic ball content
 287 #define ED_XPOS_BALL                    0
 288 #define ED_YPOS_BALL                    6
 289 #define ED_AREA_MAGIC_BALL_CONTENT_XPOS ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_BALL)
 290 #define ED_AREA_MAGIC_BALL_CONTENT_YPOS ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_BALL)
 291 #define ED_AREA_MAGIC_BALL_CONTENT_XOFF(n) ED_AREA_ELEMENT_CONTENT_XOFF(n)
 292 #define ED_AREA_MAGIC_BALL_CONTENT_YOFF(n) ED_AREA_ELEMENT_CONTENT_YOFF(n)
 293 #define ED_AREA_MAGIC_BALL_CONTENT_X(n) (ED_ELEMENT_SETTINGS_X(ED_XPOS_BALL) + \
 294                                          ED_SETTINGS_XOFF(n))
 295 #define ED_AREA_MAGIC_BALL_CONTENT_Y(n) (ED_ELEMENT_SETTINGS_Y(ED_YPOS_BALL) + \
 296                                          ED_SETTINGS_YOFF(n) +          \
 297                                          ED_AREA_YOFFSET_1(ED_YPOS_BALL) - \
 298                                          ED_AREA_YOFFSET_2(3))
 299
 300 // values for scrolling gadgets for drawing area
 301 #define ED_SCROLLBUTTON_XSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].width)
 302 #define ED_SCROLLBUTTON_YSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].height)
 303
 304 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 305 #define ED_SCROLL_UP_YPOS               (0)
 306 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 307 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 308 #define ED_SCROLL_LEFT_XPOS             (0)
 309 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 310 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 311 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 312 #define ED_SCROLL_HORIZONTAL_XPOS       (ED_SCROLL_LEFT_XPOS +          \
 313                                          ED_SCROLLBUTTON_XSIZE)
 314 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 315 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 316 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 317 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 318 #define ED_SCROLL_VERTICAL_YPOS         (ED_SCROLL_UP_YPOS +            \
 319                                          ED_SCROLLBUTTON_YSIZE)
 320 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 321 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 322
 323 // values for scrolling gadgets for element list
 324 #define ED_SCROLLBUTTON2_XSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].width)
 325 #define ED_SCROLLBUTTON2_YSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].height)
 326
 327 #define ED_SCROLL2_UP_XPOS              (ED_ELEMENTLIST_XPOS +          \
 328                                          ED_ELEMENTLIST_BUTTONS_HORIZ * \
 329                                          ED_ELEMENTLIST_XSIZE)
 330 #define ED_SCROLL2_UP_YPOS              ED_ELEMENTLIST_YPOS
 331 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 332 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS +           \
 333                                          ED_ELEMENTLIST_BUTTONS_VERT *  \
 334                                          ED_ELEMENTLIST_YSIZE -         \
 335                                          ED_SCROLLBUTTON2_YSIZE)
 336 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 337 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS +           \
 338                                          ED_SCROLLBUTTON2_YSIZE)
 339 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 340 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT *  \
 341                                          ED_ELEMENTLIST_YSIZE -         \
 342                                          2 * ED_SCROLLBUTTON2_YSIZE)
 343
 344 // values for ClearEditorGadgetInfoText() and HandleEditorGadgetInfoText()
 345 #define INFOTEXT_FONT           FONT_TEXT_2
 346 #define INFOTEXT_XSIZE          SXSIZE
 347 #define INFOTEXT_YSIZE          getFontHeight(INFOTEXT_FONT)
 348 #define INFOTEXT_YSIZE_FULL     (INFOTEXT_YSIZE + ED_GADGET_SMALL_DISTANCE)
 349 #define INFOTEXT_X              (editor.settings.tooltip.x)
 350 #define INFOTEXT_Y              (editor.settings.tooltip.y)
 351 #define INFOTEXT_XY_REDEFINED   (INFOTEXT_X != -1 || INFOTEXT_Y != -1)
 352 #define INFOTEXT_XPOS           SX + (INFOTEXT_XY_REDEFINED ? INFOTEXT_X : 0)
 353 #define INFOTEXT_YPOS           SY + (INFOTEXT_XY_REDEFINED ? INFOTEXT_Y : \
 354                                       SYSIZE - INFOTEXT_YSIZE)
 355
 356
 357 // ----------------------------------------------------------------------------
 358 // editor gadget definitions
 359 // ----------------------------------------------------------------------------
 360
 361 enum
 362 {
 363   GADGET_ID_NONE = -1,
 364
 365   // drawing toolbox buttons
 366
 367   GADGET_ID_SINGLE_ITEMS,
 368   GADGET_ID_CONNECTED_ITEMS,
 369   GADGET_ID_LINE,
 370   GADGET_ID_ARC,
 371   GADGET_ID_RECTANGLE,
 372   GADGET_ID_FILLED_BOX,
 373   GADGET_ID_WRAP_UP,
 374   GADGET_ID_TEXT,
 375   GADGET_ID_FLOOD_FILL,
 376   GADGET_ID_WRAP_LEFT,
 377   GADGET_ID_ZOOM,
 378   GADGET_ID_WRAP_RIGHT,
 379   GADGET_ID_RANDOM_PLACEMENT,
 380   GADGET_ID_GRAB_BRUSH,
 381   GADGET_ID_WRAP_DOWN,
 382   GADGET_ID_PICK_ELEMENT,
 383
 384   GADGET_ID_UNDO,
 385   GADGET_ID_INFO,
 386   GADGET_ID_SAVE,
 387   GADGET_ID_CLEAR,
 388   GADGET_ID_TEST,
 389   GADGET_ID_EXIT,
 390
 391   GADGET_ID_CUSTOM_COPY_FROM,
 392   GADGET_ID_CUSTOM_COPY_TO,
 393   GADGET_ID_CUSTOM_EXCHANGE,
 394   GADGET_ID_CUSTOM_COPY,
 395   GADGET_ID_CUSTOM_PASTE,
 396
 397   GADGET_ID_PROPERTIES,
 398   GADGET_ID_ELEMENT_LEFT,
 399   GADGET_ID_ELEMENT_MIDDLE,
 400   GADGET_ID_ELEMENT_RIGHT,
 401   GADGET_ID_PALETTE,
 402
 403   // counter gadget identifiers
 404
 405   GADGET_ID_SELECT_LEVEL_DOWN,
 406   GADGET_ID_SELECT_LEVEL_TEXT,
 407   GADGET_ID_SELECT_LEVEL_UP,
 408   GADGET_ID_LEVEL_XSIZE_DOWN,
 409   GADGET_ID_LEVEL_XSIZE_TEXT,
 410   GADGET_ID_LEVEL_XSIZE_UP,
 411   GADGET_ID_LEVEL_YSIZE_DOWN,
 412   GADGET_ID_LEVEL_YSIZE_TEXT,
 413   GADGET_ID_LEVEL_YSIZE_UP,
 414   GADGET_ID_LEVEL_RANDOM_DOWN,
 415   GADGET_ID_LEVEL_RANDOM_TEXT,
 416   GADGET_ID_LEVEL_RANDOM_UP,
 417   GADGET_ID_LEVEL_GEMSLIMIT_DOWN,
 418   GADGET_ID_LEVEL_GEMSLIMIT_TEXT,
 419   GADGET_ID_LEVEL_GEMSLIMIT_UP,
 420   GADGET_ID_LEVEL_TIMELIMIT_DOWN,
 421   GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 422   GADGET_ID_LEVEL_TIMELIMIT_UP,
 423   GADGET_ID_LEVEL_TIMESCORE_DOWN,
 424   GADGET_ID_LEVEL_TIMESCORE_TEXT,
 425   GADGET_ID_LEVEL_TIMESCORE_UP,
 426   GADGET_ID_LEVEL_RANDOM_SEED_DOWN,
 427   GADGET_ID_LEVEL_RANDOM_SEED_TEXT,
 428   GADGET_ID_LEVEL_RANDOM_SEED_UP,
 429   GADGET_ID_LEVELSET_NUM_LEVELS_DOWN,
 430   GADGET_ID_LEVELSET_NUM_LEVELS_TEXT,
 431   GADGET_ID_LEVELSET_NUM_LEVELS_UP,
 432   GADGET_ID_ELEMENT_VALUE1_DOWN,
 433   GADGET_ID_ELEMENT_VALUE1_TEXT,
 434   GADGET_ID_ELEMENT_VALUE1_UP,
 435   GADGET_ID_ELEMENT_VALUE2_DOWN,
 436   GADGET_ID_ELEMENT_VALUE2_TEXT,
 437   GADGET_ID_ELEMENT_VALUE2_UP,
 438   GADGET_ID_ELEMENT_VALUE3_DOWN,
 439   GADGET_ID_ELEMENT_VALUE3_TEXT,
 440   GADGET_ID_ELEMENT_VALUE3_UP,
 441   GADGET_ID_ELEMENT_VALUE4_DOWN,
 442   GADGET_ID_ELEMENT_VALUE4_TEXT,
 443   GADGET_ID_ELEMENT_VALUE4_UP,
 444   GADGET_ID_YAMYAM_CONTENT_DOWN,
 445   GADGET_ID_YAMYAM_CONTENT_TEXT,
 446   GADGET_ID_YAMYAM_CONTENT_UP,
 447   GADGET_ID_BALL_CONTENT_DOWN,
 448   GADGET_ID_BALL_CONTENT_TEXT,
 449   GADGET_ID_BALL_CONTENT_UP,
 450   GADGET_ID_ANDROID_CONTENT_DOWN,
 451   GADGET_ID_ANDROID_CONTENT_TEXT,
 452   GADGET_ID_ANDROID_CONTENT_UP,
 453   GADGET_ID_ENVELOPE_XSIZE_DOWN,
 454   GADGET_ID_ENVELOPE_XSIZE_TEXT,
 455   GADGET_ID_ENVELOPE_XSIZE_UP,
 456   GADGET_ID_ENVELOPE_YSIZE_DOWN,
 457   GADGET_ID_ENVELOPE_YSIZE_TEXT,
 458   GADGET_ID_ENVELOPE_YSIZE_UP,
 459   GADGET_ID_INVENTORY_SIZE_DOWN,
 460   GADGET_ID_INVENTORY_SIZE_TEXT,
 461   GADGET_ID_INVENTORY_SIZE_UP,
 462   GADGET_ID_MM_BALL_CONTENT_DOWN,
 463   GADGET_ID_MM_BALL_CONTENT_TEXT,
 464   GADGET_ID_MM_BALL_CONTENT_UP,
 465   GADGET_ID_CUSTOM_SCORE_DOWN,
 466   GADGET_ID_CUSTOM_SCORE_TEXT,
 467   GADGET_ID_CUSTOM_SCORE_UP,
 468   GADGET_ID_CUSTOM_GEMCOUNT_DOWN,
 469   GADGET_ID_CUSTOM_GEMCOUNT_TEXT,
 470   GADGET_ID_CUSTOM_GEMCOUNT_UP,
 471   GADGET_ID_CUSTOM_VALUE_FIX_DOWN,
 472   GADGET_ID_CUSTOM_VALUE_FIX_TEXT,
 473   GADGET_ID_CUSTOM_VALUE_FIX_UP,
 474   GADGET_ID_CUSTOM_VALUE_RND_DOWN,
 475   GADGET_ID_CUSTOM_VALUE_RND_TEXT,
 476   GADGET_ID_CUSTOM_VALUE_RND_UP,
 477   GADGET_ID_PUSH_DELAY_FIX_DOWN,
 478   GADGET_ID_PUSH_DELAY_FIX_TEXT,
 479   GADGET_ID_PUSH_DELAY_FIX_UP,
 480   GADGET_ID_PUSH_DELAY_RND_DOWN,
 481   GADGET_ID_PUSH_DELAY_RND_TEXT,
 482   GADGET_ID_PUSH_DELAY_RND_UP,
 483   GADGET_ID_DROP_DELAY_FIX_DOWN,
 484   GADGET_ID_DROP_DELAY_FIX_TEXT,
 485   GADGET_ID_DROP_DELAY_FIX_UP,
 486   GADGET_ID_DROP_DELAY_RND_DOWN,
 487   GADGET_ID_DROP_DELAY_RND_TEXT,
 488   GADGET_ID_DROP_DELAY_RND_UP,
 489   GADGET_ID_MOVE_DELAY_FIX_DOWN,
 490   GADGET_ID_MOVE_DELAY_FIX_TEXT,
 491   GADGET_ID_MOVE_DELAY_FIX_UP,
 492   GADGET_ID_MOVE_DELAY_RND_DOWN,
 493   GADGET_ID_MOVE_DELAY_RND_TEXT,
 494   GADGET_ID_MOVE_DELAY_RND_UP,
 495   GADGET_ID_STEP_DELAY_FIX_DOWN,
 496   GADGET_ID_STEP_DELAY_FIX_TEXT,
 497   GADGET_ID_STEP_DELAY_FIX_UP,
 498   GADGET_ID_STEP_DELAY_RND_DOWN,
 499   GADGET_ID_STEP_DELAY_RND_TEXT,
 500   GADGET_ID_STEP_DELAY_RND_UP,
 501   GADGET_ID_EXPLOSION_DELAY_DOWN,
 502   GADGET_ID_EXPLOSION_DELAY_TEXT,
 503   GADGET_ID_EXPLOSION_DELAY_UP,
 504   GADGET_ID_IGNITION_DELAY_DOWN,
 505   GADGET_ID_IGNITION_DELAY_TEXT,
 506   GADGET_ID_IGNITION_DELAY_UP,
 507   GADGET_ID_CHANGE_DELAY_FIX_DOWN,
 508   GADGET_ID_CHANGE_DELAY_FIX_TEXT,
 509   GADGET_ID_CHANGE_DELAY_FIX_UP,
 510   GADGET_ID_CHANGE_DELAY_RND_DOWN,
 511   GADGET_ID_CHANGE_DELAY_RND_TEXT,
 512   GADGET_ID_CHANGE_DELAY_RND_UP,
 513   GADGET_ID_CHANGE_CONT_RND_DOWN,
 514   GADGET_ID_CHANGE_CONT_RND_TEXT,
 515   GADGET_ID_CHANGE_CONT_RND_UP,
 516   GADGET_ID_GROUP_CONTENT_DOWN,
 517   GADGET_ID_GROUP_CONTENT_TEXT,
 518   GADGET_ID_GROUP_CONTENT_UP,
 519
 520   // drawing area identifiers
 521
 522   GADGET_ID_DRAWING_LEVEL,
 523   GADGET_ID_YAMYAM_CONTENT_0,
 524   GADGET_ID_YAMYAM_CONTENT_1,
 525   GADGET_ID_YAMYAM_CONTENT_2,
 526   GADGET_ID_YAMYAM_CONTENT_3,
 527   GADGET_ID_YAMYAM_CONTENT_4,
 528   GADGET_ID_YAMYAM_CONTENT_5,
 529   GADGET_ID_YAMYAM_CONTENT_6,
 530   GADGET_ID_YAMYAM_CONTENT_7,
 531   GADGET_ID_MAGIC_BALL_CONTENT_0,
 532   GADGET_ID_MAGIC_BALL_CONTENT_1,
 533   GADGET_ID_MAGIC_BALL_CONTENT_2,
 534   GADGET_ID_MAGIC_BALL_CONTENT_3,
 535   GADGET_ID_MAGIC_BALL_CONTENT_4,
 536   GADGET_ID_MAGIC_BALL_CONTENT_5,
 537   GADGET_ID_MAGIC_BALL_CONTENT_6,
 538   GADGET_ID_MAGIC_BALL_CONTENT_7,
 539   GADGET_ID_ANDROID_CONTENT,
 540   GADGET_ID_AMOEBA_CONTENT,
 541   GADGET_ID_START_ELEMENT,
 542   GADGET_ID_ARTWORK_ELEMENT,
 543   GADGET_ID_EXPLOSION_ELEMENT,
 544   GADGET_ID_INVENTORY_CONTENT,
 545   GADGET_ID_MM_BALL_CONTENT,
 546   GADGET_ID_CUSTOM_GRAPHIC,
 547   GADGET_ID_CUSTOM_CONTENT,
 548   GADGET_ID_CUSTOM_MOVE_ENTER,
 549   GADGET_ID_CUSTOM_MOVE_LEAVE,
 550   GADGET_ID_CUSTOM_CHANGE_TARGET,
 551   GADGET_ID_CUSTOM_CHANGE_CONTENT,
 552   GADGET_ID_CUSTOM_CHANGE_TRIGGER,
 553   GADGET_ID_CUSTOM_CHANGE_ACTION,
 554   GADGET_ID_GROUP_CONTENT,
 555   GADGET_ID_RANDOM_BACKGROUND,
 556
 557   // text input identifiers
 558
 559   GADGET_ID_LEVEL_NAME,
 560   GADGET_ID_LEVEL_AUTHOR,
 561   GADGET_ID_LEVELSET_NAME,
 562   GADGET_ID_LEVELSET_AUTHOR,
 563   GADGET_ID_ELEMENT_NAME,
 564
 565   // text area identifiers
 566
 567   GADGET_ID_ENVELOPE_INFO,
 568
 569   // selectbox identifiers
 570
 571   GADGET_ID_TIME_OR_STEPS,
 572   GADGET_ID_TIME_SCORE_BASE,
 573   GADGET_ID_GAME_ENGINE_TYPE,
 574   GADGET_ID_LEVELSET_SAVE_MODE,
 575   GADGET_ID_WIND_DIRECTION,
 576   GADGET_ID_PLAYER_SPEED,
 577   GADGET_ID_MM_BALL_CHOICE_MODE,
 578   GADGET_ID_CUSTOM_WALK_TO_ACTION,
 579   GADGET_ID_CUSTOM_EXPLOSION_TYPE,
 580   GADGET_ID_CUSTOM_DEADLINESS,
 581   GADGET_ID_CUSTOM_MOVE_PATTERN,
 582   GADGET_ID_CUSTOM_MOVE_DIRECTION,
 583   GADGET_ID_CUSTOM_MOVE_STEPSIZE,
 584   GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
 585   GADGET_ID_CUSTOM_SMASH_TARGETS,
 586   GADGET_ID_CUSTOM_SLIPPERY_TYPE,
 587   GADGET_ID_CUSTOM_ACCESS_TYPE,
 588   GADGET_ID_CUSTOM_ACCESS_LAYER,
 589   GADGET_ID_CUSTOM_ACCESS_PROTECTED,
 590   GADGET_ID_CUSTOM_ACCESS_DIRECTION,
 591   GADGET_ID_CHANGE_TIME_UNITS,
 592   GADGET_ID_CHANGE_DIRECT_ACTION,
 593   GADGET_ID_CHANGE_OTHER_ACTION,
 594   GADGET_ID_CHANGE_SIDE,
 595   GADGET_ID_CHANGE_PLAYER,
 596   GADGET_ID_CHANGE_PAGE,
 597   GADGET_ID_CHANGE_REPLACE_WHEN,
 598   GADGET_ID_ACTION_TYPE,
 599   GADGET_ID_ACTION_MODE,
 600   GADGET_ID_ACTION_ARG,
 601   GADGET_ID_SELECT_CHANGE_PAGE,
 602   GADGET_ID_GROUP_CHOICE_MODE,
 603
 604   // textbutton identifiers
 605
 606   GADGET_ID_LEVELINFO_LEVEL,
 607   GADGET_ID_LEVELINFO_LEVELSET,
 608   GADGET_ID_LEVELINFO_EDITOR,
 609   GADGET_ID_PROPERTIES_INFO,
 610   GADGET_ID_PROPERTIES_CONFIG,
 611   GADGET_ID_PROPERTIES_CONFIG_1,
 612   GADGET_ID_PROPERTIES_CONFIG_2,
 613   GADGET_ID_PROPERTIES_CHANGE,
 614   GADGET_ID_SAVE_AS_TEMPLATE_1,
 615   GADGET_ID_SAVE_AS_TEMPLATE_2,
 616   GADGET_ID_SAVE_LEVELSET,
 617   GADGET_ID_ADD_CHANGE_PAGE,
 618   GADGET_ID_DEL_CHANGE_PAGE,
 619
 620   // graphicbutton identifiers
 621
 622   GADGET_ID_PREV_CHANGE_PAGE,
 623   GADGET_ID_NEXT_CHANGE_PAGE,
 624   GADGET_ID_COPY_CHANGE_PAGE,
 625   GADGET_ID_PASTE_CHANGE_PAGE,
 626
 627   // gadgets for scrolling of drawing area
 628
 629   GADGET_ID_SCROLL_UP,
 630   GADGET_ID_SCROLL_DOWN,
 631   GADGET_ID_SCROLL_LEFT,
 632   GADGET_ID_SCROLL_RIGHT,
 633   GADGET_ID_SCROLL_HORIZONTAL,
 634   GADGET_ID_SCROLL_VERTICAL,
 635
 636   // gadgets for scrolling element list
 637
 638   GADGET_ID_SCROLL_LIST_UP,
 639   GADGET_ID_SCROLL_LIST_DOWN,
 640   GADGET_ID_SCROLL_LIST_VERTICAL,
 641
 642   // checkbuttons/radiobuttons for level/element properties
 643
 644   GADGET_ID_AUTO_COUNT_GEMS,
 645   GADGET_ID_RATE_TIME_OVER_SCORE,
 646   GADGET_ID_USE_LEVELSET_ARTWORK,
 647   GADGET_ID_COPY_LEVEL_TEMPLATE,
 648   GADGET_ID_RANDOM_PERCENTAGE,
 649   GADGET_ID_RANDOM_QUANTITY,
 650   GADGET_ID_RANDOM_RESTRICTED,
 651   GADGET_ID_STICK_ELEMENT,
 652   GADGET_ID_EM_SLIPPERY_GEMS,
 653   GADGET_ID_EM_EXPLODES_BY_FIRE,
 654   GADGET_ID_USE_SPRING_BUG,
 655   GADGET_ID_USE_TIME_ORB_BUG,
 656   GADGET_ID_USE_LIFE_BUGS,
 657   GADGET_ID_RANDOM_BALL_CONTENT,
 658   GADGET_ID_INITIAL_BALL_ACTIVE,
 659   GADGET_ID_GROW_INTO_DIGGABLE,
 660   GADGET_ID_SB_FIELDS_NEEDED,
 661   GADGET_ID_SB_OBJECTS_NEEDED,
 662   GADGET_ID_AUTO_EXIT_SOKOBAN,
 663   GADGET_ID_SOLVED_BY_ONE_PLAYER,
 664   GADGET_ID_FINISH_DIG_COLLECT,
 665   GADGET_ID_KEEP_WALKABLE_CE,
 666   GADGET_ID_CONTINUOUS_SNAPPING,
 667   GADGET_ID_BLOCK_SNAP_FIELD,
 668   GADGET_ID_BLOCK_LAST_FIELD,
 669   GADGET_ID_SP_BLOCK_LAST_FIELD,
 670   GADGET_ID_INSTANT_RELOCATION,
 671   GADGET_ID_SHIFTED_RELOCATION,
 672   GADGET_ID_LAZY_RELOCATION,
 673   GADGET_ID_USE_START_ELEMENT,
 674   GADGET_ID_USE_ARTWORK_ELEMENT,
 675   GADGET_ID_USE_EXPLOSION_ELEMENT,
 676   GADGET_ID_INITIAL_GRAVITY,
 677   GADGET_ID_USE_INITIAL_INVENTORY,
 678   GADGET_ID_CAN_PASS_TO_WALKABLE,
 679   GADGET_ID_CAN_FALL_INTO_ACID,
 680   GADGET_ID_CAN_MOVE_INTO_ACID,
 681   GADGET_ID_DONT_COLLIDE_WITH,
 682   GADGET_ID_ENVELOPE_AUTOWRAP,
 683   GADGET_ID_ENVELOPE_CENTERED,
 684   GADGET_ID_MM_LASER_RED,
 685   GADGET_ID_MM_LASER_GREEN,
 686   GADGET_ID_MM_LASER_BLUE,
 687   GADGET_ID_DF_LASER_RED,
 688   GADGET_ID_DF_LASER_GREEN,
 689   GADGET_ID_DF_LASER_BLUE,
 690   GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 691   GADGET_ID_CUSTOM_CAN_EXPLODE,
 692   GADGET_ID_CUSTOM_EXPLODE_FIRE,
 693   GADGET_ID_CUSTOM_EXPLODE_SMASH,
 694   GADGET_ID_CUSTOM_EXPLODE_IMPACT,
 695   GADGET_ID_CUSTOM_WALK_TO_OBJECT,
 696   GADGET_ID_CUSTOM_DEADLY,
 697   GADGET_ID_CUSTOM_CAN_MOVE,
 698   GADGET_ID_CUSTOM_CAN_FALL,
 699   GADGET_ID_CUSTOM_CAN_SMASH,
 700   GADGET_ID_CUSTOM_SLIPPERY,
 701   GADGET_ID_CUSTOM_ACCESSIBLE,
 702   GADGET_ID_CUSTOM_GRAV_REACHABLE,
 703   GADGET_ID_CUSTOM_USE_LAST_VALUE,
 704   GADGET_ID_CUSTOM_USE_GRAPHIC,
 705   GADGET_ID_CUSTOM_USE_TEMPLATE_1,
 706   GADGET_ID_CUSTOM_USE_TEMPLATE_2,
 707   GADGET_ID_CUSTOM_USE_TEMPLATE_3,
 708   GADGET_ID_CUSTOM_CAN_CHANGE,
 709   GADGET_ID_CHANGE_USE_CONTENT,
 710   GADGET_ID_CHANGE_USE_EXPLOSION,
 711   GADGET_ID_CHANGE_ONLY_COMPLETE,
 712   GADGET_ID_CHANGE_USE_RANDOM,
 713   GADGET_ID_CHANGE_HAS_ACTION,
 714   GADGET_ID_CHANGE_DELAY,
 715   GADGET_ID_CHANGE_BY_DIRECT_ACT,
 716   GADGET_ID_CHANGE_BY_OTHER_ACT,
 717
 718   NUM_STATIC_GADGET_IDS
 719 };
 720
 721 // gadgets for buttons in element list (dynamic)
 722 #define GADGET_ID_ELEMENTLIST_FIRST     (NUM_STATIC_GADGET_IDS)
 723 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 724                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 725
 726 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 727
 728 // radio button numbers
 729 enum
 730 {
 731   RADIO_NR_NONE,
 732   RADIO_NR_DRAWING_TOOLBOX,
 733   RADIO_NR_RANDOM_ELEMENTS
 734 };
 735
 736 // values for counter gadgets
 737 enum
 738 {
 739   ED_COUNTER_ID_SELECT_LEVEL,
 740   ED_COUNTER_ID_LEVEL_XSIZE,
 741   ED_COUNTER_ID_LEVEL_YSIZE,
 742   ED_COUNTER_ID_LEVEL_GEMSLIMIT,
 743   ED_COUNTER_ID_LEVEL_TIMELIMIT,
 744   ED_COUNTER_ID_LEVEL_TIMESCORE,
 745   ED_COUNTER_ID_LEVEL_RANDOM_SEED,
 746   ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
 747   ED_COUNTER_ID_LEVEL_RANDOM,
 748   ED_COUNTER_ID_ELEMENT_VALUE1,
 749   ED_COUNTER_ID_ELEMENT_VALUE2,
 750   ED_COUNTER_ID_ELEMENT_VALUE3,
 751   ED_COUNTER_ID_ELEMENT_VALUE4,
 752   ED_COUNTER_ID_YAMYAM_CONTENT,
 753   ED_COUNTER_ID_BALL_CONTENT,
 754   ED_COUNTER_ID_ANDROID_CONTENT,
 755   ED_COUNTER_ID_ENVELOPE_XSIZE,
 756   ED_COUNTER_ID_ENVELOPE_YSIZE,
 757   ED_COUNTER_ID_INVENTORY_SIZE,
 758   ED_COUNTER_ID_MM_BALL_CONTENT,
 759   ED_COUNTER_ID_CUSTOM_SCORE,
 760   ED_COUNTER_ID_CUSTOM_GEMCOUNT,
 761   ED_COUNTER_ID_CUSTOM_VALUE_FIX,
 762   ED_COUNTER_ID_CUSTOM_VALUE_RND,
 763   ED_COUNTER_ID_PUSH_DELAY_FIX,
 764   ED_COUNTER_ID_PUSH_DELAY_RND,
 765   ED_COUNTER_ID_DROP_DELAY_FIX,
 766   ED_COUNTER_ID_DROP_DELAY_RND,
 767   ED_COUNTER_ID_MOVE_DELAY_FIX,
 768   ED_COUNTER_ID_MOVE_DELAY_RND,
 769   ED_COUNTER_ID_STEP_DELAY_FIX,
 770   ED_COUNTER_ID_STEP_DELAY_RND,
 771   ED_COUNTER_ID_EXPLOSION_DELAY,
 772   ED_COUNTER_ID_IGNITION_DELAY,
 773   ED_COUNTER_ID_GROUP_CONTENT,
 774   ED_COUNTER_ID_CHANGE_DELAY_FIX,
 775   ED_COUNTER_ID_CHANGE_DELAY_RND,
 776   ED_COUNTER_ID_CHANGE_CONT_RND,
 777
 778   ED_NUM_COUNTERBUTTONS
 779 };
 780
 781 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 782 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 783 #define ED_COUNTER_ID_LEVELSET_FIRST    ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 784 #define ED_COUNTER_ID_LEVELSET_LAST     ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 785 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 786 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 787
 788 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 789 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 790 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 791 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 792 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 793 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 794
 795 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 796 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 797
 798 // values for scrollbutton gadgets
 799 enum
 800 {
 801   ED_SCROLLBUTTON_ID_AREA_UP,
 802   ED_SCROLLBUTTON_ID_AREA_DOWN,
 803   ED_SCROLLBUTTON_ID_AREA_LEFT,
 804   ED_SCROLLBUTTON_ID_AREA_RIGHT,
 805   ED_SCROLLBUTTON_ID_LIST_UP,
 806   ED_SCROLLBUTTON_ID_LIST_DOWN,
 807
 808   ED_NUM_SCROLLBUTTONS
 809 };
 810
 811 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 812 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 813
 814 // values for scrollbar gadgets
 815 enum
 816 {
 817   ED_SCROLLBAR_ID_AREA_HORIZONTAL,
 818   ED_SCROLLBAR_ID_AREA_VERTICAL,
 819   ED_SCROLLBAR_ID_LIST_VERTICAL,
 820
 821   ED_NUM_SCROLLBARS
 822 };
 823
 824 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 825 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 826
 827 // values for text input gadgets
 828 enum
 829 {
 830   ED_TEXTINPUT_ID_LEVEL_NAME,
 831   ED_TEXTINPUT_ID_LEVEL_AUTHOR,
 832   ED_TEXTINPUT_ID_LEVELSET_NAME,
 833   ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
 834   ED_TEXTINPUT_ID_ELEMENT_NAME,
 835
 836   ED_NUM_TEXTINPUT
 837 };
 838
 839 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 840 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 841
 842 #define ED_TEXTINPUT_ID_LEVELSET_FIRST  ED_TEXTINPUT_ID_LEVELSET_NAME
 843 #define ED_TEXTINPUT_ID_LEVELSET_LAST   ED_TEXTINPUT_ID_LEVELSET_AUTHOR
 844
 845 // values for text area gadgets
 846 enum
 847 {
 848   ED_TEXTAREA_ID_ENVELOPE_INFO,
 849
 850   ED_NUM_TEXTAREAS
 851 };
 852
 853 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 854 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 855
 856 // values for selectbox gadgets
 857 enum
 858 {
 859   ED_SELECTBOX_ID_TIME_OR_STEPS,
 860   ED_SELECTBOX_ID_TIME_SCORE_BASE,
 861   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
 862   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
 863   ED_SELECTBOX_ID_WIND_DIRECTION,
 864   ED_SELECTBOX_ID_PLAYER_SPEED,
 865   ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
 866   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
 867   ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
 868   ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
 869   ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
 870   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
 871   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
 872   ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
 873   ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
 874   ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
 875   ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
 876   ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
 877   ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
 878   ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
 879   ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
 880   ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
 881   ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
 882   ED_SELECTBOX_ID_CHANGE_SIDE,
 883   ED_SELECTBOX_ID_CHANGE_PLAYER,
 884   ED_SELECTBOX_ID_CHANGE_PAGE,
 885   ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
 886   ED_SELECTBOX_ID_ACTION_TYPE,
 887   ED_SELECTBOX_ID_ACTION_MODE,
 888   ED_SELECTBOX_ID_ACTION_ARG,
 889   ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
 890   ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
 891
 892   ED_NUM_SELECTBOX
 893 };
 894
 895 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 896 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 897
 898 #define ED_SELECTBOX_ID_LEVELSET_FIRST  ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 899 #define ED_SELECTBOX_ID_LEVELSET_LAST   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 900
 901 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 902 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 903 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 904 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 905 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 906 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 907
 908 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 909 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 910
 911 // values for textbutton gadgets
 912 enum
 913 {
 914   ED_TEXTBUTTON_ID_LEVELINFO_LEVEL,
 915   ED_TEXTBUTTON_ID_LEVELINFO_LEVELSET,
 916   ED_TEXTBUTTON_ID_LEVELINFO_EDITOR,
 917   ED_TEXTBUTTON_ID_PROPERTIES_INFO,
 918   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
 919   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
 920   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
 921   ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
 922   ED_TEXTBUTTON_ID_SAVE_LEVELSET,
 923   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
 924   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
 925   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
 926   ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
 927
 928   ED_NUM_TEXTBUTTONS
 929 };
 930
 931 #define ED_TAB_BUTTON_ID_LEVELINFO_FIRST ED_TEXTBUTTON_ID_LEVELINFO_LEVEL
 932 #define ED_TAB_BUTTON_ID_LEVELINFO_LAST  ED_TEXTBUTTON_ID_LEVELINFO_EDITOR
 933
 934 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
 935 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 936
 937 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
 938 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
 939
 940 // values for graphicbutton gadgets
 941 enum
 942 {
 943   ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
 944   ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
 945   ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
 946   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
 947
 948   ED_NUM_GRAPHICBUTTONS
 949 };
 950
 951 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
 952 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
 953
 954 // values for checkbutton gadgets
 955 enum
 956 {
 957   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
 958   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
 959   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
 960   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
 961   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
 962   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
 963   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
 964   ED_CHECKBUTTON_ID_STICK_ELEMENT,
 965   ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
 966   ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
 967   ED_CHECKBUTTON_ID_USE_SPRING_BUG,
 968   ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
 969   ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
 970   ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
 971   ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
 972   ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
 973   ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
 974   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
 975   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
 976   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
 977   ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
 978   ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
 979   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
 980   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
 981   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
 982   ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
 983   ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
 984   ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
 985   ED_CHECKBUTTON_ID_LAZY_RELOCATION,
 986   ED_CHECKBUTTON_ID_USE_START_ELEMENT,
 987   ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
 988   ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
 989   ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
 990   ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
 991   ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
 992   ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
 993   ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
 994   ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
 995   ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
 996   ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
 997   ED_CHECKBUTTON_ID_MM_LASER_RED,
 998   ED_CHECKBUTTON_ID_MM_LASER_GREEN,
 999   ED_CHECKBUTTON_ID_MM_LASER_BLUE,
1000   ED_CHECKBUTTON_ID_DF_LASER_RED,
1001   ED_CHECKBUTTON_ID_DF_LASER_GREEN,
1002   ED_CHECKBUTTON_ID_DF_LASER_BLUE,
1003   ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
1004   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
1005   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
1006   ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
1007   ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
1008   ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
1009   ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
1010   ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
1011   ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
1012   ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
1013   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
1014   ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
1015   ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
1016   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
1017   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
1018   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
1019   ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
1020   ED_CHECKBUTTON_ID_CHANGE_DELAY,
1021   ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
1022   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
1023   ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
1024   ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
1025   ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
1026   ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
1027   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
1028
1029   ED_NUM_CHECKBUTTONS
1030 };
1031
1032 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
1033 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
1034
1035 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
1036 #define ED_CHECKBUTTON_ID_LEVELSET_LAST  ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
1037
1038 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
1039 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
1040
1041 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
1042 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
1043 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
1044 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
1045 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
1046 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
1047
1048 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
1049 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
1050
1051 // values for radiobutton gadgets
1052 enum
1053 {
1054   ED_RADIOBUTTON_ID_PERCENTAGE,
1055   ED_RADIOBUTTON_ID_QUANTITY,
1056
1057   ED_NUM_RADIOBUTTONS
1058 };
1059
1060 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
1061 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
1062
1063 // values for drawing area gadgets
1064 enum
1065 {
1066   ED_DRAWING_ID_DRAWING_LEVEL,
1067   ED_DRAWING_ID_YAMYAM_CONTENT_0,
1068   ED_DRAWING_ID_YAMYAM_CONTENT_1,
1069   ED_DRAWING_ID_YAMYAM_CONTENT_2,
1070   ED_DRAWING_ID_YAMYAM_CONTENT_3,
1071   ED_DRAWING_ID_YAMYAM_CONTENT_4,
1072   ED_DRAWING_ID_YAMYAM_CONTENT_5,
1073   ED_DRAWING_ID_YAMYAM_CONTENT_6,
1074   ED_DRAWING_ID_YAMYAM_CONTENT_7,
1075   ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
1076   ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
1077   ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
1078   ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
1079   ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
1080   ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
1081   ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
1082   ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
1083   ED_DRAWING_ID_ANDROID_CONTENT,
1084   ED_DRAWING_ID_AMOEBA_CONTENT,
1085   ED_DRAWING_ID_START_ELEMENT,
1086   ED_DRAWING_ID_ARTWORK_ELEMENT,
1087   ED_DRAWING_ID_EXPLOSION_ELEMENT,
1088   ED_DRAWING_ID_INVENTORY_CONTENT,
1089   ED_DRAWING_ID_MM_BALL_CONTENT,
1090   ED_DRAWING_ID_CUSTOM_GRAPHIC,
1091   ED_DRAWING_ID_CUSTOM_CONTENT,
1092   ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
1093   ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
1094   ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
1095   ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
1096   ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
1097   ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
1098   ED_DRAWING_ID_GROUP_CONTENT,
1099   ED_DRAWING_ID_RANDOM_BACKGROUND,
1100
1101   ED_NUM_DRAWING_AREAS
1102 };
1103
1104 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
1105 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
1106
1107
1108 // ----------------------------------------------------------------------------
1109 // some internally used definitions
1110 // ----------------------------------------------------------------------------
1111
1112 // values for CopyLevelToUndoBuffer()
1113 #define UNDO_IMMEDIATE                  0
1114 #define UNDO_ACCUMULATE                 1
1115
1116 // values for scrollbars
1117 #define ED_SCROLL_NO                    0
1118 #define ED_SCROLL_LEFT                  1
1119 #define ED_SCROLL_RIGHT                 2
1120 #define ED_SCROLL_UP                    4
1121 #define ED_SCROLL_DOWN                  8
1122
1123 // screens in the level editor
1124 #define ED_MODE_DRAWING                 0
1125 #define ED_MODE_INFO                    1
1126 #define ED_MODE_PROPERTIES              2
1127 #define ED_MODE_PALETTE                 3
1128
1129 // sub-screens in the global settings section
1130 #define ED_MODE_LEVELINFO_LEVEL         ED_TEXTBUTTON_ID_LEVELINFO_LEVEL
1131 #define ED_MODE_LEVELINFO_LEVELSET      ED_TEXTBUTTON_ID_LEVELINFO_LEVELSET
1132 #define ED_MODE_LEVELINFO_EDITOR        ED_TEXTBUTTON_ID_LEVELINFO_EDITOR
1133
1134 // sub-screens in the element properties section
1135 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1136 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1137 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1138 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1139 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1140
1141 // how many steps can be cancelled
1142 #define NUM_UNDO_STEPS                  (64 + 1)
1143
1144 // values for elements with score for certain actions
1145 #define MIN_SCORE                       0
1146 #define MAX_SCORE                       999
1147
1148 // values for elements with count for collecting
1149 #define MIN_COLLECT_COUNT               0
1150 #define MAX_COLLECT_COUNT               999
1151
1152 // values for random placement
1153 #define RANDOM_USE_PERCENTAGE           0
1154 #define RANDOM_USE_QUANTITY             1
1155
1156 // values for level set save mode
1157 #define LEVELSET_SAVE_MODE_UPDATE       0
1158 #define LEVELSET_SAVE_MODE_CREATE       1
1159
1160 // default value for element tile size in drawing area
1161 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1162 #define DEFAULT_EDITOR_TILESIZE_MM      TILESIZE
1163
1164
1165 // ----------------------------------------------------------------------------
1166 // some internally used data structure definitions
1167 // ----------------------------------------------------------------------------
1168
1169 static struct
1170 {
1171   int graphic;
1172   int gadget_id;
1173   struct XYTileSize *pos;
1174   int gadget_type;
1175   char *infotext;
1176   char shortcut;
1177 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1178 {
1179   // note: some additional characters are already reserved for "cheat mode"
1180   // shortcuts (":XYZ" style) -- for details, see "events.c"
1181
1182   // ---------- toolbox control buttons ---------------------------------------
1183
1184   {
1185     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1186     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1187     "draw single items",                        's'
1188   },
1189   {
1190     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1191     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1192     "draw connected items",                     'd'
1193   },
1194   {
1195     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1196     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1197     "draw lines",                               'l'
1198   },
1199   {
1200     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1201     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1202     "draw arcs",                                'a'
1203   },
1204   {
1205     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1206     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1207     "draw outline rectangles",                  'r'
1208   },
1209   {
1210     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1211     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1212     "draw filled rectangles",                   'R'
1213   },
1214   {
1215     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1216     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1217     "wrap (rotate) level up",                   0
1218   },
1219   {
1220     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1221     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1222     "enter text elements",                      't'
1223   },
1224   {
1225     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1226     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1227     "flood fill",                               'f'
1228   },
1229   {
1230     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1231     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1232     "wrap (rotate) level left",                 0
1233   },
1234   {
1235     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1236     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1237     "zoom level tile size",                     '+'
1238   },
1239   {
1240     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1241     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1242     "wrap (rotate) level right",                0
1243   },
1244   {
1245     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1246     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1247     "random element placement",                 0
1248   },
1249   {
1250     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1251     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1252     "grab brush",                               'b'
1253   },
1254   {
1255     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1256     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1257     "wrap (rotate) level down",                 0
1258   },
1259   {
1260     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1261     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1262     "pick drawing element",                     ','
1263   },
1264
1265   // ---------- level control buttons -----------------------------------------
1266
1267   {
1268     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1269     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1270     "undo/redo last operation",                 'u'
1271   },
1272   {
1273     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_INFO,
1274     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1275     "properties of level",                      'I'
1276   },
1277   {
1278     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1279     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1280     "save level",                               'S'
1281   },
1282   {
1283     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1284     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1285     "clear level",                              'C'
1286   },
1287   {
1288     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1289     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1290     "test level",                               'T'
1291   },
1292   {
1293     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1294     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1295     "exit level editor",                        'E'
1296   },
1297
1298   // ---------- CE and GE control buttons -------------------------------------
1299
1300   {
1301     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1302     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1303     "copy settings from other element",         0
1304   },
1305   {
1306     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1307     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1308     "copy settings to other element",           0
1309   },
1310   {
1311     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1312     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1313     "exchange element with other element",      0
1314   },
1315   {
1316     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1317     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1318     "copy settings from this element",          0
1319   },
1320   {
1321     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1322     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1323     "paste settings to this element",           0
1324   },
1325
1326   // ---------- palette control buttons ---------------------------------------
1327
1328   {
1329     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1330     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1331     "properties of drawing element",            'p'
1332   },
1333   {
1334     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1335     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1336     "properties of drawing element 1",          '1'
1337   },
1338   {
1339     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1340     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1341     "properties of drawing element 2",          '2'
1342   },
1343   {
1344     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1345     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1346     "properties of drawing element 3",          '3'
1347   },
1348   {
1349     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1350     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1351     "show list of elements",                    'e'
1352   }
1353 };
1354
1355 static int random_placement_value = 10;
1356 static int random_placement_method = RANDOM_USE_QUANTITY;
1357 static int random_placement_background_element = EL_SAND;
1358 static boolean random_placement_background_restricted = FALSE;
1359 static boolean stick_element_properties_window = FALSE;
1360 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1361 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1362 static struct ElementChangeInfo custom_element_change;
1363 static struct ElementGroupInfo group_element_info;
1364 static struct ElementInfo custom_element;
1365
1366 static char levelset_name[MAX_LEVEL_NAME_LEN + 1];
1367 static char levelset_author[MAX_LEVEL_AUTHOR_LEN + 1];
1368 static int levelset_num_levels = 100;
1369 static boolean levelset_use_levelset_artwork = FALSE;
1370 static boolean levelset_copy_level_template = FALSE;
1371 static int levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
1372
1373 static struct
1374 {
1375   int x, y;
1376   int min_value, max_value;
1377   int gadget_id_down, gadget_id_up;
1378   int gadget_id_text;
1379   int gadget_id_align;
1380   int *value;
1381   char *text_above, *text_left, *text_right;
1382 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1383 {
1384   // ---------- current level number ------------------------------------------
1385
1386   {
1387     -1, -1,     // these values are not constant, but can change at runtime
1388     1,                                  100,
1389     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1390     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1391     &level_nr,
1392     NULL,                               NULL, NULL
1393   },
1394
1395   // ---------- level and editor settings -------------------------------------
1396
1397   {
1398     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1399     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1400     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1401     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1402     &level.fieldx,
1403     "playfield size:",                  NULL, "width",
1404   },
1405   {
1406     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1407     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1408     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1409     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1410     &level.fieldy,
1411     NULL,                               " ", "height",
1412   },
1413   {
1414     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1415     0,                                  999,
1416     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1417     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1418     &level.gems_needed,
1419     NULL,                               "number of gems to collect:", NULL
1420   },
1421   {
1422     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
1423     0,                                  9999,
1424     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1425     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1426     &level.time,
1427     "time or step limit to solve level:", NULL, NULL
1428   },
1429   {
1430     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
1431     0,                                  999,
1432     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1433     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1434     &level.score[SC_TIME_BONUS],
1435     "score for time or steps left:",    NULL, NULL
1436   },
1437   {
1438     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(13),
1439     0,                                  9999,
1440     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1441     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1442     &level.random_seed,
1443     NULL,                               "random seed:", "(0 => random)"
1444   },
1445   {
1446     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1447     1,                                  MAX_LEVELS,
1448     GADGET_ID_LEVELSET_NUM_LEVELS_DOWN, GADGET_ID_LEVELSET_NUM_LEVELS_UP,
1449     GADGET_ID_LEVELSET_NUM_LEVELS_TEXT, GADGET_ID_NONE,
1450     &levelset_num_levels,
1451     "number of levels:",                NULL, NULL,
1452   },
1453   {
1454     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1455     1,                                  100,
1456     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1457     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1458     &random_placement_value,
1459     "random element placement:",        NULL, "in"
1460   },
1461
1462   // ---------- element settings: configure (various elements) ----------------
1463
1464   {
1465     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1466     MIN_SCORE,                          MAX_SCORE,
1467     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1468     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1469     NULL,                               // will be set when used
1470     NULL,                               NULL, NULL
1471   },
1472   {
1473     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1474     MIN_SCORE,                          MAX_SCORE,
1475     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1476     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1477     NULL,                               // will be set when used
1478     NULL,                               NULL, NULL
1479   },
1480   {
1481     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1482     MIN_SCORE,                          MAX_SCORE,
1483     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1484     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1485     NULL,                               // will be set when used
1486     NULL,                               NULL, NULL
1487   },
1488   {
1489     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1490     MIN_SCORE,                          MAX_SCORE,
1491     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1492     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1493     NULL,                               // will be set when used
1494     NULL,                               NULL, NULL
1495   },
1496   {
1497     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1498     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1499     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1500     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1501     &level.num_yamyam_contents,
1502     NULL,                               NULL, "number of content areas"
1503   },
1504   {
1505     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1506     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1507     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1508     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1509     &level.num_ball_contents,
1510     NULL,                               NULL, "number of content areas"
1511   },
1512   {
1513     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1514     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1515     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1516     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1517     &level.num_android_clone_elements,
1518     NULL,                               NULL, "number of clonable elements"
1519   },
1520   {
1521     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1522     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1523     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1524     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1525     NULL,                               // will be set when used
1526     NULL,                               NULL, "width",
1527   },
1528   {
1529     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1530     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1531     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1532     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1533     NULL,                               // will be set when used
1534     NULL,                               " ", "height",
1535   },
1536   {
1537     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1538     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1539     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1540     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1541     &level.initial_inventory_size[0],
1542     NULL,                               NULL, "number of inventory elements"
1543   },
1544   {
1545     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1546     MIN_ELEMENTS_IN_GROUP,              MAX_MM_BALL_CONTENTS,
1547     GADGET_ID_MM_BALL_CONTENT_DOWN,     GADGET_ID_MM_BALL_CONTENT_UP,
1548     GADGET_ID_MM_BALL_CONTENT_TEXT,     GADGET_ID_NONE,
1549     &level.num_mm_ball_contents,
1550     NULL,                               NULL, "number of content elements"
1551   },
1552
1553   // ---------- element settings: configure 1 (custom elements) ---------------
1554
1555   {
1556     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1557     MIN_SCORE,                          MAX_SCORE,
1558     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1559     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1560     &custom_element.collect_score_initial,
1561     NULL,                               "CE score", " "
1562   },
1563   {
1564     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1565     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1566     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1567     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1568     &custom_element.collect_count_initial,
1569     NULL,                               "CE count", NULL
1570   },
1571   {
1572     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1573     0,                                  9999,
1574     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1575     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1576     &custom_element.ce_value_fixed_initial,
1577     NULL,                               "CE value", NULL
1578   },
1579   {
1580     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1581     0,                                  9999,
1582     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1583     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1584     &custom_element.ce_value_random_initial,
1585     NULL,                               "+random", NULL
1586   },
1587   {
1588     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1589     0,                                  999,
1590     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1591     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1592     &custom_element.push_delay_fixed,
1593     NULL,                               "push delay", NULL
1594   },
1595   {
1596     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1597     0,                                  999,
1598     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1599     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1600     &custom_element.push_delay_random,
1601     NULL,                               "+random", NULL
1602   },
1603   {
1604     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1605     0,                                  999,
1606     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1607     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1608     &custom_element.drop_delay_fixed,
1609     NULL,                               "drop delay", NULL
1610   },
1611   {
1612     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1613     0,                                  999,
1614     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1615     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1616     &custom_element.drop_delay_random,
1617     NULL,                               "+random", NULL
1618   },
1619
1620   // ---------- element settings: configure 2 (custom elements) ---------------
1621
1622   {
1623     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1624     0,                                  999,
1625     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1626     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1627     &custom_element.move_delay_fixed,
1628     NULL,                               "move delay", NULL
1629   },
1630   {
1631     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1632     0,                                  999,
1633     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1634     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1635     &custom_element.move_delay_random,
1636     NULL,                               "+random", NULL
1637   },
1638   {
1639     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1640     0,                                  999,
1641     GADGET_ID_STEP_DELAY_FIX_DOWN,      GADGET_ID_STEP_DELAY_FIX_UP,
1642     GADGET_ID_STEP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1643     &custom_element.step_delay_fixed,
1644     NULL,                               "step delay", NULL
1645   },
1646   {
1647     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1648     0,                                  999,
1649     GADGET_ID_STEP_DELAY_RND_DOWN,      GADGET_ID_STEP_DELAY_RND_UP,
1650     GADGET_ID_STEP_DELAY_RND_TEXT,      GADGET_ID_STEP_DELAY_FIX_UP,
1651     &custom_element.step_delay_random,
1652     NULL,                               "+random", NULL
1653   },
1654   {
1655     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1656     0,                                  999,
1657     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1658     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1659     &custom_element.explosion_delay,
1660     NULL,                               "explosion delay", NULL
1661   },
1662   {
1663     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
1664     0,                                  999,
1665     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1666     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1667     &custom_element.ignition_delay,
1668     NULL,                               "ignition delay", "(by fire)"
1669   },
1670
1671   // ---------- element settings: configure (group elements) ------------------
1672
1673   {
1674     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1675     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1676     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1677     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1678     &group_element_info.num_elements,
1679     NULL,                               NULL, "number of elements in group"
1680   },
1681
1682   // ---------- element settings: advanced (custom elements) ------------------
1683
1684   {
1685     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1686     0,                                  999,
1687     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1688     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1689     &custom_element_change.delay_fixed,
1690     NULL,                               "CE delay", NULL,
1691   },
1692   {
1693     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1694     0,                                  999,
1695     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1696     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1697     &custom_element_change.delay_random,
1698     NULL,                               "+random", NULL
1699   },
1700   {
1701     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1702     0,                                  100,
1703     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1704     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1705     &custom_element_change.random_percentage,
1706     NULL,                               "use random replace:", "%"
1707   },
1708 };
1709
1710 static struct
1711 {
1712   int x, y;
1713   int gadget_id;
1714   int size;
1715   char *value;
1716   char *text_above, *infotext;
1717 } textinput_info[ED_NUM_TEXTINPUT] =
1718 {
1719   {
1720     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1721     GADGET_ID_LEVEL_NAME,
1722     MAX_LEVEL_NAME_LEN,
1723     level.name,
1724     "Title:", "Title for this level"
1725   },
1726   {
1727     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1728     GADGET_ID_LEVEL_AUTHOR,
1729     MAX_LEVEL_AUTHOR_LEN,
1730     level.author,
1731     "Author:", "Author for this level"
1732   },
1733   {
1734     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1735     GADGET_ID_LEVELSET_NAME,
1736     MAX_LEVEL_NAME_LEN,
1737     levelset_name,
1738     "Title:", "Title for this or new level set"
1739   },
1740   {
1741     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1742     GADGET_ID_LEVELSET_AUTHOR,
1743     MAX_LEVEL_AUTHOR_LEN,
1744     levelset_author,
1745     "Author:", "Author for this or new level set"
1746   },
1747   {
1748     -1, -1,     // these values are not constant, but can change at runtime
1749     GADGET_ID_ELEMENT_NAME,
1750     MAX_ELEMENT_NAME_LEN - 2,           // currently 2 chars less editable
1751     custom_element.description,
1752     NULL, "Element name"
1753   }
1754 };
1755
1756 static struct
1757 {
1758   int x, y;
1759   int gadget_id;
1760   int xsize, ysize;
1761   char *value;
1762   char *text_above, *infotext;
1763 } textarea_info[ED_NUM_TEXTAREAS] =
1764 {
1765   {
1766     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1767     GADGET_ID_ENVELOPE_INFO,
1768     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1769     NULL,
1770     "Envelope Content:", "Envelope Content"
1771   }
1772 };
1773
1774 static struct ValueTextInfo options_time_or_steps[] =
1775 {
1776   { 0,                          "seconds"                       },
1777   { 1,                          "steps"                         },
1778
1779   { -1,                         NULL                            }
1780 };
1781
1782 static struct ValueTextInfo options_time_score_base[] =
1783 {
1784   { 1,                          "per second/step"               },
1785   { 10,                         "per 10 seconds/steps"          },
1786
1787   { -1,                         NULL                            }
1788 };
1789
1790 static struct ValueTextInfo options_game_engine_type[] =
1791 {
1792   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
1793   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
1794   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
1795   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
1796
1797   { -1,                         NULL                            }
1798 };
1799
1800 static struct ValueTextInfo options_levelset_save_mode[] =
1801 {
1802   { LEVELSET_SAVE_MODE_UPDATE,  "Update this level set"         },
1803   { LEVELSET_SAVE_MODE_CREATE,  "Create new level set"          },
1804
1805   { -1,                         NULL                            }
1806 };
1807
1808 static struct ValueTextInfo options_wind_direction[] =
1809 {
1810   { MV_START_NONE,              "none"                          },
1811   { MV_START_LEFT,              "left"                          },
1812   { MV_START_RIGHT,             "right"                         },
1813   { MV_START_UP,                "up"                            },
1814   { MV_START_DOWN,              "down"                          },
1815
1816   { -1,                         NULL                            }
1817 };
1818
1819 static struct ValueTextInfo options_player_speed[] =
1820 {
1821   { 0,                          "frozen"                        },
1822   { 1,                          "very slow"                     },
1823   { 2,                          "slow"                          },
1824   { 4,                          "normal"                        },
1825   { 8,                          "fast"                          },
1826   { 16,                         "very fast"                     },
1827   { 32,                         "ultrafast"                     },
1828
1829   { -1,                         NULL                            }
1830 };
1831
1832 static struct ValueTextInfo options_access_type[] =
1833 {
1834   { EP_WALKABLE,                "walkable"                      },
1835   { EP_PASSABLE,                "passable"                      },
1836
1837   { -1,                         NULL                            }
1838 };
1839
1840 static struct ValueTextInfo options_access_layer[] =
1841 {
1842   { EP_ACCESSIBLE_OVER,         "over"                          },
1843   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
1844   { EP_ACCESSIBLE_UNDER,        "under"                         },
1845
1846   { -1,                         NULL                            }
1847 };
1848
1849 static struct ValueTextInfo options_access_protected[] =
1850 {
1851   { 0,                          "unprotected"                   },
1852   { 1,                          "protected"                     },
1853
1854   { -1,                         NULL                            }
1855 };
1856
1857 static struct ValueTextInfo options_access_direction[] =
1858 {
1859   { MV_NO_DIRECTION,            "no direction"                  },
1860   { MV_LEFT,                    "left"                          },
1861   { MV_RIGHT,                   "right"                         },
1862   { MV_UP,                      "up"                            },
1863   { MV_DOWN,                    "down"                          },
1864   { MV_LEFT  | MV_UP,           "left + up"                     },
1865   { MV_LEFT  | MV_DOWN,         "left + down"                   },
1866   { MV_RIGHT | MV_UP,           "right + up"                    },
1867   { MV_RIGHT | MV_DOWN,         "right + down"                  },
1868   { MV_HORIZONTAL,              "horizontal"                    },
1869   { MV_VERTICAL,                "vertical"                      },
1870   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
1871   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
1872   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
1873   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
1874   { MV_ALL_DIRECTIONS,          "all directions"                },
1875
1876   { -1,                         NULL                            }
1877 };
1878
1879 static struct ValueTextInfo options_walk_to_action[] =
1880 {
1881   { EP_DIGGABLE,                "diggable"                      },
1882   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
1883   { EP_DROPPABLE,               "collectible & droppable"       },
1884   { EP_THROWABLE,               "collectible & throwable"       },
1885   { EP_PUSHABLE,                "pushable"                      },
1886
1887   { -1,                         NULL                            }
1888 };
1889
1890 static struct ValueTextInfo options_move_pattern[] =
1891 {
1892   { MV_LEFT,                    "left"                          },
1893   { MV_RIGHT,                   "right"                         },
1894   { MV_UP,                      "up"                            },
1895   { MV_DOWN,                    "down"                          },
1896   { MV_HORIZONTAL,              "horizontal"                    },
1897   { MV_VERTICAL,                "vertical"                      },
1898   { MV_ALL_DIRECTIONS,          "all directions"                },
1899   { MV_WIND_DIRECTION,          "wind direction"                },
1900   { MV_TOWARDS_PLAYER,          "towards player"                },
1901   { MV_AWAY_FROM_PLAYER,        "away from player"              },
1902   { MV_ALONG_LEFT_SIDE,         "along left side"               },
1903   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
1904   { MV_TURNING_LEFT,            "turning left"                  },
1905   { MV_TURNING_RIGHT,           "turning right"                 },
1906   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
1907   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
1908   { MV_TURNING_RANDOM,          "turning random"                },
1909   { MV_MAZE_RUNNER,             "maze runner style"             },
1910   { MV_MAZE_HUNTER,             "maze hunter style"             },
1911   { MV_WHEN_PUSHED,             "when pushed"                   },
1912   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
1913
1914   { -1,                         NULL                            }
1915 };
1916
1917 static struct ValueTextInfo options_move_direction[] =
1918 {
1919   { MV_START_AUTOMATIC,         "automatic"                     },
1920   { MV_START_LEFT,              "left"                          },
1921   { MV_START_RIGHT,             "right"                         },
1922   { MV_START_UP,                "up"                            },
1923   { MV_START_DOWN,              "down"                          },
1924   { MV_START_RANDOM,            "random"                        },
1925   { MV_START_PREVIOUS,          "previous"                      },
1926
1927   { -1,                         NULL                            }
1928 };
1929
1930 static struct ValueTextInfo options_move_stepsize[] =
1931 {
1932   { 0,                          "not moving"                    },
1933   { 1,                          "very slow"                     },
1934   { 2,                          "slow"                          },
1935   { 4,                          "normal"                        },
1936   { 8,                          "fast"                          },
1937   { 16,                         "very fast"                     },
1938   { 32,                         "even faster"                   },
1939
1940   { -1,                         NULL                            }
1941 };
1942
1943 static struct ValueTextInfo options_move_leave_type[] =
1944 {
1945   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
1946   { LEAVE_TYPE_LIMITED,         "change it to"                  },
1947
1948   { -1,                         NULL                            }
1949 };
1950
1951 static struct ValueTextInfo options_smash_targets[] =
1952 {
1953   { EP_CAN_SMASH_PLAYER,        "player"                        },
1954 #if 0
1955   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
1956 #endif
1957   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
1958
1959   { -1,                         NULL                            }
1960 };
1961
1962 static struct ValueTextInfo options_slippery_type[] =
1963 {
1964   { SLIPPERY_ANY_RANDOM,        "random"                        },
1965   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
1966   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
1967   { SLIPPERY_ONLY_LEFT,         "only left"                     },
1968   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
1969
1970   { -1,                         NULL                            }
1971 };
1972
1973 static struct ValueTextInfo options_deadliness[] =
1974 {
1975   { EP_DONT_RUN_INTO,           "running into"                  },
1976   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
1977   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
1978   { EP_DONT_TOUCH,              "touching"                      },
1979
1980   { -1,                         NULL                            }
1981 };
1982
1983 static struct ValueTextInfo options_explosion_type[] =
1984 {
1985   { EXPLODES_3X3,               "3x3"                           },
1986   { EXPLODES_CROSS,             "3+3"                           },
1987   { EXPLODES_1X1,               "1x1"                           },
1988
1989   { -1,                         NULL                            }
1990 };
1991
1992 static struct ValueTextInfo options_time_units[] =
1993 {
1994   { 1,                          "frames"                        },
1995   { FRAMES_PER_SECOND,          "seconds"                       },
1996
1997   { -1,                         NULL                            }
1998 };
1999
2000 static struct ValueTextInfo options_change_direct_action[] =
2001 {
2002   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
2003   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
2004   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
2005   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
2006   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
2007   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
2008   { CE_LEFT_BY_PLAYER,          "left by player"                },
2009   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
2010   { CE_SWITCHED,                "switched"                      },
2011   { CE_HITTING_SOMETHING,       "hitting something"             },
2012   { CE_HIT_BY_SOMETHING,        "hit by something"              },
2013 #if 0
2014   { CE_BLOCKED,                 "blocked"                       },
2015 #endif
2016   { CE_IMPACT,                  "impact (on something)"         },
2017   { CE_SMASHED,                 "smashed (from above)"          },
2018 #if 0
2019   { CE_VALUE_CHANGES,           "CE value changes"              },
2020   { CE_SCORE_CHANGES,           "CE score changes"              },
2021 #endif
2022   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
2023   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
2024   { CE_UNDEFINED,               " "                             },
2025   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2026   { CE_CLICKED_BY_MOUSE,        "clicked by mouse"              },
2027   { CE_PRESSED_BY_MOUSE,        "pressed by mouse"              },
2028   { CE_UNDEFINED,               " "                             },
2029   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2030   { CE_NEXT_TO_PLAYER,          "next to player"                },
2031
2032   { -1,                         NULL                            }
2033 };
2034
2035 static struct ValueTextInfo options_change_other_action[] =
2036 {
2037   { CE_PLAYER_TOUCHES_X,        "player touches"                },
2038   { CE_PLAYER_PRESSES_X,        "player presses"                },
2039   { CE_PLAYER_SWITCHES_X,       "player switches"               },
2040   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
2041   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
2042   { CE_PLAYER_ENTERS_X,         "player enters"                 },
2043   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
2044   { CE_PLAYER_DIGS_X,           "player digs"                   },
2045   { CE_PLAYER_COLLECTS_X,       "player collects"               },
2046   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
2047   { CE_TOUCHING_X,              "touching"                      },
2048   { CE_HITTING_X,               "hitting"                       },
2049   { CE_DIGGING_X,               "digging"                       },
2050   { CE_HIT_BY_X,                "hit by"                        },
2051   { CE_SWITCH_OF_X,             "switch of"                     },
2052   { CE_CHANGE_OF_X,             "change by page of"             },
2053   { CE_EXPLOSION_OF_X,          "explosion of"                  },
2054   { CE_MOVE_OF_X,               "move of"                       },
2055   { CE_CREATION_OF_X,           "creation of"                   },
2056   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
2057   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
2058   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
2059   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
2060   { CE_UNDEFINED,               " "                             },
2061   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2062   { CE_MOUSE_CLICKED_ON_X,      "mouse clicked on"              },
2063   { CE_MOUSE_PRESSED_ON_X,      "mouse pressed on"              },
2064   { CE_UNDEFINED,               " "                             },
2065   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2066   { CE_PLAYER_NEXT_TO_X,        "player next to"                },
2067   { CE_NEXT_TO_X,               "next to"                       },
2068
2069   { -1,                         NULL                            }
2070 };
2071
2072 static struct ValueTextInfo options_change_trigger_side[] =
2073 {
2074   { CH_SIDE_LEFT,               "left"                          },
2075   { CH_SIDE_RIGHT,              "right"                         },
2076   { CH_SIDE_TOP,                "top"                           },
2077   { CH_SIDE_BOTTOM,             "bottom"                        },
2078   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
2079   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
2080   { CH_SIDE_ANY,                "any"                           },
2081
2082   { -1,                         NULL                            }
2083 };
2084
2085 static struct ValueTextInfo options_change_trigger_player[] =
2086 {
2087   { CH_PLAYER_1,                "1"                             },
2088   { CH_PLAYER_2,                "2"                             },
2089   { CH_PLAYER_3,                "3"                             },
2090   { CH_PLAYER_4,                "4"                             },
2091   { CH_PLAYER_ANY,              "any"                           },
2092
2093   { -1,                         NULL                            }
2094 };
2095
2096 static struct ValueTextInfo options_change_trigger_page[] =
2097 {
2098   { (1u << 0),                  "1"                             },
2099   { (1u << 1),                  "2"                             },
2100   { (1u << 2),                  "3"                             },
2101   { (1u << 3),                  "4"                             },
2102   { (1u << 4),                  "5"                             },
2103   { (1u << 5),                  "6"                             },
2104   { (1u << 6),                  "7"                             },
2105   { (1u << 7),                  "8"                             },
2106   { (1u << 8),                  "9"                             },
2107   { (1u << 9),                  "10"                            },
2108   { (1u << 10),                 "11"                            },
2109   { (1u << 11),                 "12"                            },
2110   { (1u << 12),                 "13"                            },
2111   { (1u << 13),                 "14"                            },
2112   { (1u << 14),                 "15"                            },
2113   { (1u << 15),                 "16"                            },
2114   { (1u << 16),                 "17"                            },
2115   { (1u << 17),                 "18"                            },
2116   { (1u << 18),                 "19"                            },
2117   { (1u << 19),                 "20"                            },
2118   { (1u << 20),                 "21"                            },
2119   { (1u << 21),                 "22"                            },
2120   { (1u << 22),                 "23"                            },
2121   { (1u << 23),                 "24"                            },
2122   { (1u << 24),                 "25"                            },
2123   { (1u << 25),                 "26"                            },
2124   { (1u << 26),                 "27"                            },
2125   { (1u << 27),                 "28"                            },
2126   { (1u << 28),                 "29"                            },
2127   { (1u << 29),                 "30"                            },
2128   { (1u << 30),                 "31"                            },
2129   { (1u << 31),                 "32"                            },
2130   { CH_PAGE_ANY,                "any"                           },
2131
2132   { -1,                         NULL                            }
2133 };
2134
2135 static struct ValueTextInfo options_change_replace_when[] =
2136 {
2137   { CP_WHEN_EMPTY,              "empty"                         },
2138   { CP_WHEN_WALKABLE,           "walkable"                      },
2139   { CP_WHEN_DIGGABLE,           "diggable"                      },
2140   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
2141   { CP_WHEN_REMOVABLE,          "removable"                     },
2142   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
2143
2144   { -1,                         NULL                            }
2145 };
2146
2147 static struct ValueTextInfo options_action_type[] =
2148 {
2149   { CA_NO_ACTION,               "no action"                     },
2150   { CA_UNDEFINED,               " "                             },
2151   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
2152   { CA_RESTART_LEVEL,           "restart level"                 },
2153   { CA_SHOW_ENVELOPE,           "show envelope"                 },
2154   { CA_SET_LEVEL_TIME,          "set time"                      },
2155   { CA_SET_LEVEL_SCORE,         "set score"                     },
2156   { CA_SET_LEVEL_GEMS,          "set gems"                      },
2157   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
2158   { CA_SET_LEVEL_RANDOM_SEED,   "set random seed"               },
2159   { CA_UNDEFINED,               " "                             },
2160   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
2161   { CA_MOVE_PLAYER,             "move player"                   },
2162   { CA_MOVE_PLAYER_NEW,         "move player new"               },
2163   { CA_EXIT_PLAYER,             "exit player"                   },
2164   { CA_KILL_PLAYER,             "kill player"                   },
2165   { CA_SET_PLAYER_KEYS,         "set keys"                      },
2166   { CA_SET_PLAYER_SPEED,        "set speed"                     },
2167   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
2168   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
2169   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
2170   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
2171   { CA_UNDEFINED,               " "                             },
2172   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
2173   { CA_SET_CE_VALUE,            "set CE value"                  },
2174   { CA_SET_CE_SCORE,            "set CE score"                  },
2175   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
2176   { CA_UNDEFINED,               " "                             },
2177   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
2178   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
2179
2180   { -1,                         NULL                            }
2181 };
2182
2183 static struct ValueTextInfo options_action_mode_none[] =
2184 {
2185   { CA_MODE_UNDEFINED,          " "                             },
2186
2187   { -1,                         NULL                            }
2188 };
2189
2190 static struct ValueTextInfo options_action_mode_assign[] =
2191 {
2192   { CA_MODE_SET,                "="                             },
2193
2194   { -1,                         NULL                            }
2195 };
2196
2197 static struct ValueTextInfo options_action_mode_add_remove[] =
2198 {
2199   { CA_MODE_ADD,                "+"                             },
2200   { CA_MODE_SUBTRACT,           "-"                             },
2201
2202   { -1,                         NULL                            }
2203 };
2204
2205 static struct ValueTextInfo options_action_mode_calculate[] =
2206 {
2207   { CA_MODE_SET,                "="                             },
2208   { CA_MODE_ADD,                "+"                             },
2209   { CA_MODE_SUBTRACT,           "-"                             },
2210   { CA_MODE_MULTIPLY,           "*"                             },
2211   { CA_MODE_DIVIDE,             "/"                             },
2212   { CA_MODE_MODULO,             "%"                             },
2213
2214   { -1,                         NULL                            }
2215 };
2216
2217 static struct ValueTextInfo options_action_arg_none[] =
2218 {
2219   { CA_ARG_UNDEFINED,           "         "                     },
2220
2221   { -1,                         NULL                            }
2222 };
2223
2224 static struct ValueTextInfo options_action_arg_player[] =
2225 {
2226   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2227   { CA_ARG_PLAYER_1,            "1"                             },
2228   { CA_ARG_PLAYER_2,            "2"                             },
2229   { CA_ARG_PLAYER_3,            "3"                             },
2230   { CA_ARG_PLAYER_4,            "4"                             },
2231   { CA_ARG_PLAYER_ANY,          "any"                           },
2232   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2233   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2234
2235   { -1,                         NULL                            }
2236 };
2237
2238 static struct ValueTextInfo options_action_arg_number[] =
2239 {
2240   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2241   { CA_ARG_0,                   "0"                             },
2242   { CA_ARG_1,                   "1"                             },
2243   { CA_ARG_2,                   "2"                             },
2244   { CA_ARG_3,                   "3"                             },
2245   { CA_ARG_4,                   "4"                             },
2246   { CA_ARG_5,                   "5"                             },
2247   { CA_ARG_10,                  "10"                            },
2248   { CA_ARG_100,                 "100"                           },
2249   { CA_ARG_1000,                "1000"                          },
2250   { CA_ARG_UNDEFINED,           " "                             },
2251   { CA_ARG_NUMBER_MIN,          "min"                           },
2252   { CA_ARG_NUMBER_MAX,          "max"                           },
2253   { CA_ARG_UNDEFINED,           " "                             },
2254   { CA_ARG_NUMBER_RESET,        "reset"                         },
2255   { CA_ARG_UNDEFINED,           " "                             },
2256   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2257   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2258   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2259   { CA_ARG_UNDEFINED,           " "                             },
2260   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2261   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2262   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2263   { CA_ARG_UNDEFINED,           " "                             },
2264   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2265   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2266   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2267   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2268   { CA_ARG_UNDEFINED,           " "                             },
2269   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2270   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2271   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2272   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2273
2274   { -1,                         NULL                            }
2275 };
2276
2277 static struct ValueTextInfo options_action_arg_value[] =
2278 {
2279   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2280   { CA_ARG_0,                   "0"                             },
2281   { CA_ARG_1,                   "1"                             },
2282   { CA_ARG_2,                   "2"                             },
2283   { CA_ARG_3,                   "3"                             },
2284   { CA_ARG_4,                   "4"                             },
2285   { CA_ARG_5,                   "5"                             },
2286   { CA_ARG_10,                  "10"                            },
2287   { CA_ARG_100,                 "100"                           },
2288   { CA_ARG_1000,                "1000"                          },
2289   { CA_ARG_UNDEFINED,           " "                             },
2290   { CA_ARG_NUMBER_MIN,          "min"                           },
2291   { CA_ARG_NUMBER_MAX,          "max"                           },
2292   { CA_ARG_UNDEFINED,           " "                             },
2293   { CA_ARG_NUMBER_RESET,        "reset"                         },
2294   { CA_ARG_UNDEFINED,           " "                             },
2295   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2296   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2297   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2298   { CA_ARG_UNDEFINED,           " "                             },
2299   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2300   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2301   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2302   { CA_ARG_UNDEFINED,           " "                             },
2303   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2304   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2305   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2306   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2307   { CA_ARG_UNDEFINED,           " "                             },
2308   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2309   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2310   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2311   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2312   { CA_ARG_UNDEFINED,           " "                             },
2313   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2314   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2315   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2316   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2317
2318   { -1,                         NULL                            }
2319 };
2320
2321 static struct ValueTextInfo options_action_arg_envelope[] =
2322 {
2323   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2324   { CA_ARG_1,                   "1"                             },
2325   { CA_ARG_2,                   "2"                             },
2326   { CA_ARG_3,                   "3"                             },
2327   { CA_ARG_4,                   "4"                             },
2328   { CA_ARG_UNDEFINED,           " "                             },
2329   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2330   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2331   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2332   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2333
2334   { -1,                         NULL                            }
2335 };
2336
2337 static struct ValueTextInfo options_action_arg_key[] =
2338 {
2339   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2340   { CA_ARG_1,                   "1"                             },
2341   { CA_ARG_2,                   "2"                             },
2342   { CA_ARG_3,                   "3"                             },
2343   { CA_ARG_4,                   "4"                             },
2344   { CA_ARG_5,                   "5"                             },
2345   { CA_ARG_6,                   "6"                             },
2346   { CA_ARG_7,                   "7"                             },
2347   { CA_ARG_8,                   "8"                             },
2348   { CA_ARG_UNDEFINED,           " "                             },
2349   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2350   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2351   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2352   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2353
2354   { -1,                         NULL                            }
2355 };
2356
2357 static struct ValueTextInfo options_action_arg_speed[] =
2358 {
2359   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2360   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2361   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2362   { CA_ARG_SPEED_SLOW,          "slow"                          },
2363   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2364   { CA_ARG_SPEED_FAST,          "fast"                          },
2365   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2366   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2367   { CA_ARG_UNDEFINED,           " "                             },
2368   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2369   { CA_ARG_SPEED_FASTER,        "faster"                        },
2370   { CA_ARG_UNDEFINED,           " "                             },
2371   { CA_ARG_SPEED_RESET,         "reset"                         },
2372
2373   { -1,                         NULL                            }
2374 };
2375
2376 static struct ValueTextInfo options_action_arg_shield[] =
2377 {
2378   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2379   { CA_ARG_SHIELD_OFF,          "off"                           },
2380   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2381   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2382
2383   { -1,                         NULL                            }
2384 };
2385
2386 static struct ValueTextInfo options_action_arg_artwork[] =
2387 {
2388   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2389   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2390   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2391   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2392   { CA_ARG_UNDEFINED,           " "                             },
2393   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2394
2395   { -1,                         NULL                            }
2396 };
2397
2398 static struct ValueTextInfo options_action_arg_gravity[] =
2399 {
2400   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2401   { CA_ARG_GRAVITY_ON,          "on"                            },
2402   { CA_ARG_GRAVITY_OFF,         "off"                           },
2403   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2404
2405   { -1,                         NULL                            }
2406 };
2407
2408 static struct ValueTextInfo options_action_arg_direction[] =
2409 {
2410   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2411   { CA_ARG_DIRECTION_NONE,      "none"                          },
2412   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2413   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2414   { CA_ARG_DIRECTION_UP,        "up"                            },
2415   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2416   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2417   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2418
2419   { -1,                         NULL                            }
2420 };
2421
2422 static struct ValueTextInfo options_action_arg_scan_mode[] =
2423 {
2424   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2425   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2426   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2427
2428   { -1,                         NULL                            }
2429 };
2430
2431 static struct ValueTextInfo options_action_arg_inventory[] =
2432 {
2433   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2434   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2435   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2436   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2437   { CA_ARG_UNDEFINED,           " "                             },
2438   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2439   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2440   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2441   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2442   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2443   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2444   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2445   { CA_ARG_UNDEFINED,           " "                             },
2446   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2447
2448   { -1,                         NULL                            }
2449 };
2450
2451 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2452 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2453 {
2454   { -1,                         NULL                            }
2455 };
2456
2457 static struct ValueTextInfo options_group_choice_mode[] =
2458 {
2459   { ANIM_RANDOM,                "random"                        },
2460   { ANIM_LOOP,                  "loop"                          },
2461   { ANIM_LINEAR,                "linear"                        },
2462   { ANIM_PINGPONG,              "pingpong"                      },
2463   { ANIM_PINGPONG2,             "pingpong 2"                    },
2464
2465   { -1,                         NULL                            }
2466 };
2467
2468 static struct ValueTextInfo *action_arg_modes[] =
2469 {
2470   options_action_mode_none,
2471   options_action_mode_assign,
2472   options_action_mode_add_remove,
2473   options_action_mode_calculate,
2474 };
2475
2476 static struct
2477 {
2478   int value;
2479   int mode;
2480   struct ValueTextInfo *options;
2481 }
2482 action_arg_options[] =
2483 {
2484   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2485   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2486   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2487   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2488   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2489   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2490   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2491   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2492   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2493   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2494   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2495   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2496   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2497   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2498   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2499   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2500   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2501   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2502   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2503   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2504   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2505   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2506
2507   { -1,                         FALSE,  NULL                            }
2508 };
2509
2510 static struct
2511 {
2512   int x, y;
2513   int gadget_id;
2514   int gadget_id_align;
2515   int size;     // char size of selectbox or '-1' (dynamically determined)
2516   struct ValueTextInfo *options;
2517   int *value;
2518   char *text_above, *text_left, *text_right, *infotext;
2519 } selectbox_info[ED_NUM_SELECTBOX] =
2520 {
2521   // ---------- level and editor settings -------------------------------------
2522
2523   {
2524     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2525     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2526     -1,
2527     options_time_or_steps,
2528     &level.use_step_counter,
2529     NULL, NULL, "(0 => no limit)",      "time or step limit"
2530   },
2531   {
2532     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2533     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2534     -1,
2535     options_time_score_base,
2536     &level.time_score_base,
2537     NULL, NULL, NULL,                   "time score for 1 or 10 seconds/steps"
2538   },
2539   {
2540     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2541     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2542     -1,
2543     options_game_engine_type,
2544     &level.game_engine_type,
2545     NULL, "game engine:", NULL,         "game engine"
2546   },
2547   {
2548     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2549     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2550     -1,
2551     options_levelset_save_mode,
2552     &levelset_save_mode,
2553     "Action:", NULL, NULL,              "action when saving level set"
2554   },
2555
2556   // ---------- element settings: configure (several elements) ----------------
2557
2558   {
2559     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2560     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2561     -1,
2562     options_wind_direction,
2563     &level.wind_direction_initial,
2564     NULL, "initial wind direction:", NULL,      "initial wind direction"
2565   },
2566   {
2567     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2568     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2569     -1,
2570     options_player_speed,
2571     &level.initial_player_stepsize[0],
2572     NULL, "initial player speed:", NULL,        "initial player speed"
2573   },
2574   {
2575     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2576     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2577     -1,
2578     options_group_choice_mode,
2579     &level.mm_ball_choice_mode,
2580     NULL, "choice type:", NULL,         "type of content choice"
2581   },
2582
2583   // ---------- element settings: configure 1 (custom elements) ---------------
2584
2585   {
2586     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2587     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2588     -1,
2589     options_access_type,
2590     &custom_element.access_type,
2591     NULL, NULL, NULL,                   "type of access to this field"
2592   },
2593   {
2594     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2595     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2596     -1,
2597     options_access_layer,
2598     &custom_element.access_layer,
2599     NULL, NULL, NULL,                   "layer of access for this field"
2600   },
2601   {
2602     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2603     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2604     -1,
2605     options_access_protected,
2606     &custom_element.access_protected,
2607     NULL, NULL, NULL,                   "protected access for this field"
2608   },
2609   {
2610     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2611     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2612     -1,
2613     options_access_direction,
2614     &custom_element.access_direction,
2615     NULL, "from", NULL,                 "access direction for this field"
2616   },
2617   {
2618     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2619     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2620     -1,
2621     options_walk_to_action,
2622     &custom_element.walk_to_action,
2623     NULL, NULL, NULL,                   "diggable/collectible/pushable"
2624   },
2625
2626   // ---------- element settings: configure 2 (custom elements) ---------------
2627
2628   {
2629     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2630     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2631     -1,
2632     options_move_pattern,
2633     &custom_element.move_pattern,
2634     NULL, "can move", NULL,             "element move pattern"
2635   },
2636   {
2637     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2638     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2639     -1,
2640     options_move_direction,
2641     &custom_element.move_direction_initial,
2642     NULL, "starts moving", NULL,        "initial element move direction"
2643   },
2644   {
2645     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2646     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2647     -1,
2648     options_move_stepsize,
2649     &custom_element.move_stepsize,
2650     NULL, "move/fall speed", NULL,      "speed of element movement"
2651   },
2652   {
2653     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2654     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2655     -1,
2656     options_move_leave_type,
2657     &custom_element.move_leave_type,
2658     // left text with leading spaces to place gadget next to "can dig" gadget
2659     // (needed because drawing area gadgets created after selectbox gadgets)
2660     // NULL, "can dig:    can", ":",    "leave behind or change element"
2661     NULL, "            can", ":",       "leave behind or change element"
2662   },
2663   {
2664     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2665     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2666     -1,
2667     options_smash_targets,
2668     &custom_element.smash_targets,
2669     NULL, "can smash", NULL,            "elements that can be smashed"
2670   },
2671   {
2672     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2673     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2674     -1,
2675     options_slippery_type,
2676     &custom_element.slippery_type,
2677     NULL, "slippery", NULL,             "where other elements fall down"
2678   },
2679   {
2680     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2681     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2682     -1,
2683     options_deadliness,
2684     &custom_element.deadliness,
2685     NULL, "deadly when", NULL,          "deadliness of element"
2686   },
2687   {
2688     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2689     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2690     -1,
2691     options_explosion_type,
2692     &custom_element.explosion_type,
2693     NULL, "can explode", NULL,          "explosion type"
2694   },
2695
2696   // ---------- element settings: advanced (custom elements) ------------------
2697
2698   {
2699     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2700     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2701     -1,
2702     options_time_units,
2703     &custom_element_change.delay_frames,
2704     NULL, "delay time given in", NULL,  "delay time units for change"
2705   },
2706   {
2707     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2708     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2709     -1,
2710     options_change_direct_action,
2711     &custom_element_change.direct_action,
2712     NULL, NULL, NULL,                   "type of direct action"
2713   },
2714   {
2715     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2716     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2717     -1,
2718     options_change_other_action,
2719     &custom_element_change.other_action,
2720     NULL, NULL, "element:",             "type of other element action"
2721   },
2722   {
2723     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2724     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2725     -1,
2726     options_change_trigger_side,
2727     &custom_element_change.trigger_side,
2728     NULL, "at", "side",                 "element side triggering change"
2729   },
2730   {
2731     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2732     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2733     -1,
2734     options_change_trigger_player,
2735     &custom_element_change.trigger_player,
2736     NULL, "player:", " ",               "player that causes change"
2737   },
2738   {
2739     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2740     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2741     -1,
2742     options_change_trigger_page,
2743     &custom_element_change.trigger_page,
2744     NULL, "page:", NULL,                "change page that causes change"
2745   },
2746   {
2747     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2748     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2749     -1,
2750     options_change_replace_when,
2751     &custom_element_change.replace_when,
2752     NULL, "replace when", NULL,         "which elements can be replaced"
2753   },
2754   {
2755     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
2756     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
2757     15,
2758     options_action_type,
2759     &custom_element_change.action_type,
2760     NULL, NULL, NULL,                   "action on specified condition"
2761   },
2762   {
2763     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2764     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
2765     -1,
2766     options_action_mode_none,
2767     &custom_element_change.action_mode,
2768     NULL, NULL, NULL,                   "action operator"
2769   },
2770   {
2771     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2772     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
2773     -1,
2774     options_action_arg_none,
2775     &custom_element_change.action_arg,
2776     NULL, NULL, NULL,                   "action parameter"
2777   },
2778   {
2779     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
2780     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
2781     3,
2782     options_change_page,
2783     &custom_element.current_change_page,
2784     NULL, NULL, NULL,                   "element change page"
2785   },
2786
2787   // ---------- element settings: configure (group elements) ------------------
2788
2789   {
2790     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2791     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
2792     -1,
2793     options_group_choice_mode,
2794     &group_element_info.choice_mode,
2795     NULL, "choice type:", NULL,         "type of group element choice"
2796   },
2797 };
2798
2799 static struct
2800 {
2801   int x, y;
2802   int gadget_id;
2803   int gadget_id_align;
2804   int size;
2805   char *text;
2806   char *text_above, *text_left, *text_right, *infotext;
2807 } textbutton_info[ED_NUM_TEXTBUTTONS] =
2808 {
2809   // ---------- level and editor settings (tabs) ------------------------------
2810
2811   {
2812     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
2813     GADGET_ID_LEVELINFO_LEVEL,          GADGET_ID_NONE,
2814     8,                                  "Level",
2815     NULL, NULL, NULL,                   "Configure level properties"
2816   },
2817   {
2818     -1,                                 -1,
2819     GADGET_ID_LEVELINFO_LEVELSET,       GADGET_ID_LEVELINFO_LEVEL,
2820     8,                                  "Levelset",
2821     NULL, NULL, NULL,                   "Update this or create new level set"
2822   },
2823   {
2824     -1,                                 -1,
2825     GADGET_ID_LEVELINFO_EDITOR,         GADGET_ID_LEVELINFO_LEVELSET,
2826     8,                                  "Editor",
2827     NULL, NULL, NULL,                   "Configure editor properties"
2828   },
2829
2830   // ---------- element settings (tabs) ---------------------------------------
2831
2832   {
2833     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
2834     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
2835     8,                                  "Info",
2836     NULL, NULL, NULL,                   "Show information about element"
2837   },
2838   {
2839     -1,                                 -1,
2840     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
2841     8,                                  "Config",
2842     NULL, NULL, NULL,                   "Configure element properties"
2843   },
2844   {
2845     -1,                                 -1,
2846     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
2847     8,                                  "Config 1",
2848     NULL, NULL, NULL,                   "Configure element properties, part 1"
2849   },
2850   {
2851     -1,                                 -1,
2852     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
2853     8,                                  "Config 2",
2854     NULL, NULL, NULL,                   "Configure element properties, part 2"
2855   },
2856   {
2857     -1,                                 -1,
2858     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
2859     8,                                  "Change",
2860     NULL, NULL, NULL,                   "Configure custom element change pages"
2861   },
2862
2863   // ---------- level and editor settings (buttons) ---------------------------
2864
2865   {
2866     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2867     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
2868     -1,                                 "Save",
2869     NULL, NULL, NULL,                   "Update or create level set"
2870   },
2871   {
2872     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
2873     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
2874     -1,                                 "Save",
2875     NULL, NULL,                         "this level as level template",
2876     "Save current settings as new template"
2877   },
2878
2879   // ---------- element settings (buttons) ------------------------------------
2880
2881   {
2882     -1,                                 -1,
2883     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
2884     -1,                                 "Save",
2885     NULL, " ",                          "As Template",
2886     "Save current settings as new template"
2887   },
2888   {
2889     -1,                                 -1,
2890     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
2891     -1,                                 "New",
2892     NULL, NULL, NULL,                   "Add new change page"
2893   },
2894   {
2895     -1,                                 -1,
2896     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
2897     -1,                                 "Delete",
2898     NULL, NULL, NULL,                   "Delete current change page"
2899   },
2900 };
2901
2902 static struct
2903 {
2904   int graphic;
2905   int x, y;
2906   int gadget_id;
2907   int gadget_id_align;
2908   char *text_left, *text_right, *infotext;
2909 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
2910 {
2911   {
2912     IMG_EDITOR_COUNTER_DOWN,
2913     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
2914     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
2915     NULL, NULL,                         "select previous change page"
2916   },
2917   {
2918     IMG_EDITOR_COUNTER_UP,
2919     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2920     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
2921     NULL, "change page",                "select next change page"
2922   },
2923   {
2924     IMG_GFX_EDITOR_BUTTON_CP_COPY,
2925     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2926     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
2927     " ", NULL,                          "copy settings from this change page"
2928   },
2929   {
2930     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
2931     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2932     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
2933     NULL, NULL,                         "paste settings to this change page"
2934   },
2935 };
2936
2937 static struct
2938 {
2939   int x, y;
2940 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
2941
2942 static struct
2943 {
2944   int graphic;
2945   int gadget_id;
2946   char *infotext;
2947 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
2948 {
2949   {
2950     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
2951     GADGET_ID_SCROLL_UP,
2952     "scroll level editing area up"
2953   },
2954   {
2955     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
2956     GADGET_ID_SCROLL_DOWN,
2957     "scroll level editing area down"
2958   },
2959   {
2960     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
2961     GADGET_ID_SCROLL_LEFT,
2962     "scroll level editing area left"
2963   },
2964   {
2965     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
2966     GADGET_ID_SCROLL_RIGHT,
2967     "scroll level editing area right"
2968   },
2969   {
2970     IMG_EDITOR_PALETTE_SCROLL_UP,
2971     GADGET_ID_SCROLL_LIST_UP,
2972     "scroll element list up ('Page Up')"
2973   },
2974   {
2975     IMG_EDITOR_PALETTE_SCROLL_DOWN,
2976     GADGET_ID_SCROLL_LIST_DOWN,
2977     "scroll element list down ('Page Down')"
2978   },
2979 };
2980
2981 static struct
2982 {
2983   int x, y;
2984   int width, height;
2985   int wheel_x, wheel_y;
2986   int wheel_width, wheel_height;
2987 } scrollbar_pos[ED_NUM_SCROLLBARS];
2988
2989 static struct
2990 {
2991   int graphic;
2992   int type;
2993   int gadget_id;
2994   char *infotext;
2995 } scrollbar_info[ED_NUM_SCROLLBARS] =
2996 {
2997   {
2998     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
2999     GD_TYPE_SCROLLBAR_HORIZONTAL,
3000     GADGET_ID_SCROLL_HORIZONTAL,
3001     "scroll level editing area horizontally"
3002   },
3003   {
3004     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3005     GD_TYPE_SCROLLBAR_VERTICAL,
3006     GADGET_ID_SCROLL_VERTICAL,
3007     "scroll level editing area vertically"
3008   },
3009   {
3010     IMG_EDITOR_PALETTE_SCROLLBAR,
3011     GD_TYPE_SCROLLBAR_VERTICAL,
3012     GADGET_ID_SCROLL_LIST_VERTICAL,
3013     "scroll element list vertically"
3014   }
3015 };
3016
3017
3018 static struct
3019 {
3020   int x, y;
3021   int gadget_id;
3022   int gadget_id_align;
3023   int radio_button_nr;
3024   int *value;
3025   int checked_value;
3026   char *text_left, *text_right, *infotext;
3027 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3028 {
3029   {
3030     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3031     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3032     RADIO_NR_RANDOM_ELEMENTS,
3033     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3034     " ", "percentage",                  "use percentage for random elements"
3035   },
3036   {
3037     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3038     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3039     RADIO_NR_RANDOM_ELEMENTS,
3040     &random_placement_method,           RANDOM_USE_QUANTITY,
3041     " ", "quantity",                    "use quantity for random elements"
3042   }
3043 };
3044
3045 static struct
3046 {
3047   int x, y;
3048   int gadget_id;
3049   int gadget_id_align;
3050   boolean *value;
3051   char *text_above, *text_left, *text_right, *infotext;
3052 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3053 {
3054   // ---------- level and editor settings -------------------------------------
3055
3056   {
3057     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3058     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3059     &level.auto_count_gems,
3060     NULL, NULL,
3061     "automatically count gems needed",  "set counter to number of gems"
3062   },
3063   {
3064     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3065     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3066     &level.rate_time_over_score,
3067     NULL, NULL,
3068     "rate time/steps used over score",  "sort high scores by playing time/steps"
3069   },
3070   {
3071     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3072     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3073     &levelset_use_levelset_artwork,
3074     NULL, NULL,
3075     "use current custom artwork",       "use custom artwork of this level set"
3076   },
3077   {
3078     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3079     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3080     &levelset_copy_level_template,
3081     NULL, NULL,
3082     "copy current level template",      "copy level template of this level set"
3083   },
3084   {
3085     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3086     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3087     &random_placement_background_restricted,
3088     NULL, NULL,
3089     "restrict random placement to:",    "set random placement restriction"
3090   },
3091   {
3092     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3093     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3094     &setup.editor.use_template_for_new_levels,
3095     "Template for new levels and CE/GE:", NULL,
3096     "use template for new levels",      "use template for level properties"
3097   },
3098   {
3099     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3100     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3101     &level.use_custom_template,
3102     NULL, NULL,
3103     "use template for custom elements", "use template for custom properties"
3104   },
3105
3106   // ---------- element settings: configure (various elements) ----------------
3107
3108   {
3109     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3110     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3111     &stick_element_properties_window,
3112     NULL, NULL,
3113     "stick this screen to edit content","stick this screen to edit content"
3114   },
3115   {
3116     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3117     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3118     &level.em_slippery_gems,
3119     NULL, NULL,
3120     "slip down from certain flat walls","use EM/DC style slipping behaviour"
3121   },
3122   {
3123     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3124     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3125     &level.em_explodes_by_fire,
3126     NULL, NULL,
3127     "explodes with chain reaction",     "use R'n'D style explosion behaviour"
3128   },
3129   {
3130     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3131     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3132     &level.use_spring_bug,
3133     NULL, NULL,
3134     "use spring pushing bug",           "use odd spring pushing behaviour"
3135   },
3136   {
3137     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3138     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3139     &level.use_time_orb_bug,
3140     NULL, NULL,
3141     "use time orb bug",                 "use odd time orb behaviour"
3142   },
3143   {
3144     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3145     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3146     &level.use_life_bugs,
3147     NULL, NULL,
3148     "use buggy element behaviour",      "use odd (historic) element behaviour"
3149   },
3150   {
3151     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3152     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3153     &level.ball_random,
3154     NULL, NULL,
3155     "create single random element",     "only create one element from content"
3156   },
3157   {
3158     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3159     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3160     &level.ball_active_initial,
3161     NULL, NULL,
3162     "magic ball initially activated",   "activate magic ball after level start"
3163   },
3164   {
3165     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3166     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3167     &level.grow_into_diggable,
3168     NULL, NULL,
3169     "can grow into anything diggable",  "grow into more than just sand"
3170   },
3171   {
3172     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3173     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3174     &level.sb_fields_needed,
3175     NULL, NULL,
3176     "all fields need to be filled",     "require all SB fields to be solved"
3177   },
3178   {
3179     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3180     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3181     &level.sb_objects_needed,
3182     NULL, NULL,
3183     "all objects need to be placed",    "require all SB objects to be solved"
3184   },
3185   {
3186     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3187     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3188     &level.auto_exit_sokoban,
3189     NULL, NULL,
3190     "exit level if all tasks solved",   "automatically finish Sokoban levels"
3191   },
3192   {
3193     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3194     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3195     &level.solved_by_one_player,
3196     NULL, NULL,
3197     "only one player must enter exit",  "level solved by first player in exit"
3198   },
3199   {
3200     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3201     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3202     &level.finish_dig_collect,
3203     NULL, NULL,
3204     "CE action on finished dig/collect", "only finished dig/collect triggers CE"
3205   },
3206   {
3207     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3208     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3209     &level.keep_walkable_ce,
3210     NULL, NULL,
3211     "keep walkable CE changed to player", "keep CE changing to player if walkable"
3212   },
3213   {
3214     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3215     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3216     &level.continuous_snapping,
3217     NULL, NULL,
3218     "continuous snapping",              "use snapping without releasing key"
3219   },
3220   {
3221     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3222     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3223     &level.block_snap_field,
3224     NULL, NULL,
3225     "block snapped field when snapping", "use snapping delay to show animation"
3226   },
3227   {
3228     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3229     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3230     &level.block_last_field,
3231     NULL, NULL,
3232     "block last field when moving",     "player blocks last field when moving"
3233   },
3234   {
3235     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3236     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3237     &level.sp_block_last_field,
3238     NULL, NULL,
3239     "block last field when moving",     "player blocks last field when moving"
3240   },
3241   {
3242     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3243     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3244     &level.instant_relocation,
3245     NULL, NULL,
3246     "no scrolling when relocating",     "player gets relocated without delay"
3247   },
3248   {
3249     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3250     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3251     &level.shifted_relocation,
3252     NULL, NULL,
3253     "no centering when relocating",     "level not centered after relocation"
3254   },
3255   {
3256     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3257     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3258     &level.lazy_relocation,
3259     NULL, NULL,
3260     "only redraw off-screen relocation","no redraw if relocation target visible"
3261   },
3262   {
3263     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3264     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3265     &level.use_start_element[0],
3266     NULL, NULL,
3267     "use level start element:",        "start level at this element's position"
3268   },
3269   {
3270     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3271     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3272     &level.use_artwork_element[0],
3273     NULL, NULL,
3274     "use artwork from element:",        "use player artwork from other element"
3275   },
3276   {
3277     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3278     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3279     &level.use_explosion_element[0],
3280     NULL, NULL,
3281     "use explosion from element:",      "use explosion properties from element"
3282   },
3283   {
3284     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3285     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3286     &level.initial_player_gravity[0],
3287     NULL, NULL,
3288     "use initial gravity",              "set initial player gravity"
3289   },
3290   {
3291     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3292     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3293     &level.use_initial_inventory[0],
3294     NULL, NULL,
3295     "use initial inventory:",           "use collected elements on level start"
3296   },
3297   {
3298     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3299     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3300     &level.can_pass_to_walkable,
3301     NULL, NULL,
3302     "can pass to walkable element",     "player can pass to empty or walkable"
3303   },
3304   {
3305     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3306     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3307     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3308     NULL, NULL,
3309     "can fall into acid (with gravity)","player can fall into acid pool"
3310   },
3311   {
3312     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3313     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3314     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3315     NULL, NULL,
3316     "can move into acid",               "element can move into acid pool"
3317   },
3318   {
3319     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3320     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3321     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3322     NULL, NULL,
3323     "deadly when colliding with",       "element is deadly when hitting player"
3324   },
3325   {
3326     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3327     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3328     &level.envelope[0].autowrap,
3329     NULL, NULL,
3330     "auto-wrap",                        "automatically wrap envelope text"
3331   },
3332   {
3333     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3334     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3335     &level.envelope[0].centered,
3336     NULL, " ",
3337     "centered",                         "automatically center envelope text"
3338   },
3339   {
3340     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3341     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3342     &level.mm_laser_red,
3343     "choose color components for laser:", NULL,
3344     "red",                              "use red color components in laser"
3345   },
3346   {
3347     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3348     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3349     &level.mm_laser_green,
3350     NULL, NULL,
3351     "green",                            "use green color components in laser"
3352   },
3353   {
3354     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3355     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3356     &level.mm_laser_blue,
3357     NULL, NULL,
3358     "blue",                             "use blue color components in laser"
3359   },
3360   {
3361     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3362     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3363     &level.df_laser_red,
3364     "choose color components for laser:", NULL,
3365     "red",                              "use red color components in laser"
3366   },
3367   {
3368     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3369     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3370     &level.df_laser_green,
3371     NULL, NULL,
3372     "green",                            "use green color components in laser"
3373   },
3374   {
3375     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3376     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3377     &level.df_laser_blue,
3378     NULL, NULL,
3379     "blue",                             "use blue color components in laser"
3380   },
3381
3382   // ---------- element settings: configure 1 (custom elements) ---------------
3383
3384   {
3385     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3386     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3387     &custom_element.use_gfx_element,
3388     NULL, NULL,
3389     "use graphic of element:",          "use existing element graphic"
3390   },
3391   {
3392     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3393     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3394     &level.use_custom_template,
3395     NULL, NULL,
3396     "use template",                     "use template for custom properties"
3397   },
3398   {
3399     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3400     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3401     &custom_element_properties[EP_ACCESSIBLE],
3402     NULL, NULL,
3403     NULL,                               "player can walk to or pass this field"
3404   },
3405   {
3406     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3407     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3408     &custom_element_properties[EP_GRAVITY_REACHABLE],
3409     NULL, NULL,
3410     "reachable despite gravity",        "player can walk/dig despite gravity"
3411   },
3412   {
3413     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3414     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3415     &custom_element.use_last_ce_value,
3416     NULL, NULL,
3417     "use last CE value after change",   "use last CE value after change"
3418   },
3419   {
3420     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3421     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3422     &custom_element_properties[EP_WALK_TO_OBJECT],
3423     NULL, NULL,
3424     NULL,                               "player can dig/collect/push element"
3425   },
3426   {
3427     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3428     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3429     &custom_element_properties[EP_INDESTRUCTIBLE],
3430     NULL, NULL,
3431     "indestructible",                   "element is indestructible"
3432   },
3433
3434   // ---------- element settings: configure 2 (custom elements) ---------------
3435
3436   {
3437     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3438     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
3439     &custom_element_properties[EP_CAN_MOVE],
3440     NULL, NULL,
3441     NULL,                               "element can move with some pattern"
3442   },
3443   {
3444     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3445     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
3446     &custom_element_properties[EP_CAN_FALL],
3447     NULL, NULL,
3448     "can fall",                         "element can fall down"
3449   },
3450   {
3451     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
3452     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
3453     &custom_element_properties[EP_CAN_SMASH],
3454     NULL, " ",
3455     NULL,                               "element can smash other elements"
3456   },
3457   {
3458     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3459     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
3460     &custom_element_properties[EP_SLIPPERY],
3461     NULL, NULL,
3462     NULL,                               "other elements can fall down from it"
3463   },
3464   {
3465     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3466     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
3467     &custom_element_properties[EP_DEADLY],
3468     NULL, NULL,
3469     NULL,                               "element can kill the player"
3470   },
3471   {
3472     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3473     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
3474     &custom_element_properties[EP_CAN_EXPLODE],
3475     NULL, NULL,
3476     NULL,                               "element can explode"
3477   },
3478   {
3479     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
3480     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
3481     &custom_element_properties[EP_EXPLODES_BY_FIRE],
3482     NULL, NULL,
3483     "by fire",                          "element can explode by fire/explosion"
3484   },
3485   {
3486     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3487     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
3488     &custom_element_properties[EP_EXPLODES_SMASHED],
3489     NULL, " ",
3490     "smashed",                          "element can explode when smashed"
3491   },
3492   {
3493     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3494     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
3495     &custom_element_properties[EP_EXPLODES_IMPACT],
3496     NULL, " ",
3497     "impact",                           "element can explode on impact"
3498   },
3499
3500   // ---------- element settings: advanced (custom elements) ------------------
3501
3502   {
3503     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3504     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
3505     &custom_element_change.can_change,
3506     NULL, NULL,
3507     "element changes to:",              "change element on specified condition"
3508   },
3509   {
3510     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
3511     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
3512     &custom_element_change_events[CE_DELAY],
3513     NULL, NULL,
3514     NULL,                               "element changes after delay"
3515   },
3516   {
3517     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
3518     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
3519     &custom_element_change_events[CE_BY_DIRECT_ACTION],
3520     NULL, NULL,
3521     NULL,                               "element changes by direct action"
3522   },
3523   {
3524     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
3525     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
3526     &custom_element_change_events[CE_BY_OTHER_ACTION],
3527     NULL, NULL,
3528     NULL,                               "element changes by other element"
3529   },
3530   {
3531     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
3532     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
3533     &custom_element_change.explode,
3534     NULL, NULL,
3535     "explode instead of change",        "element explodes instead of change"
3536   },
3537   {
3538     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
3539     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
3540     &custom_element_change.use_target_content,
3541     NULL, NULL,
3542     "use extended change target:",      "element changes to more elements"
3543   },
3544   {
3545     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
3546     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
3547     &custom_element_change.only_if_complete,
3548     NULL, NULL,
3549     "replace all or nothing",           "only replace when all can be changed"
3550   },
3551   {
3552     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
3553     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
3554     &custom_element_change.use_random_replace,
3555     NULL, NULL,
3556     NULL,                               "use percentage for random replace"
3557   },
3558   {
3559     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3560     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
3561     &custom_element_change.has_action,
3562     NULL, NULL,
3563     NULL,                               "execute action on specified condition"
3564   },
3565 };
3566
3567 static struct
3568 {
3569   int x, y;
3570   int xoffset, yoffset;
3571   int gadget_id;
3572   int gadget_id_align;
3573   int *value;
3574   int area_xsize, area_ysize;
3575   char *text_left, *text_right, *text_above, *text_below, *infotext;
3576 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
3577 {
3578   // ---------- level playfield content ---------------------------------------
3579
3580   {
3581     0,                                  0,
3582     0,                                  0,
3583     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
3584     NULL,
3585     -1, -1,     // these values are not constant, but can change at runtime
3586     NULL, NULL, NULL, NULL,             NULL
3587   },
3588
3589   // ---------- yam yam content -----------------------------------------------
3590
3591   {
3592     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3593     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
3594     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
3595     &level.yamyam_content[0].e[0][0],   3, 3,
3596     NULL, NULL, NULL, "1",              NULL
3597   },
3598   {
3599     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3600     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
3601     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
3602     &level.yamyam_content[1].e[0][0],   3, 3,
3603     NULL, NULL, NULL, "2",              NULL
3604   },
3605   {
3606     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3607     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
3608     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
3609     &level.yamyam_content[2].e[0][0],   3, 3,
3610     NULL, NULL, NULL, "3",              NULL
3611   },
3612   {
3613     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3614     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
3615     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
3616     &level.yamyam_content[3].e[0][0],   3, 3,
3617     NULL, NULL, NULL, "4",              NULL
3618   },
3619   {
3620     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3621     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
3622     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
3623     &level.yamyam_content[4].e[0][0],   3, 3,
3624     NULL, NULL, NULL, "5",              NULL
3625   },
3626   {
3627     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3628     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
3629     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
3630     &level.yamyam_content[5].e[0][0],   3, 3,
3631     NULL, NULL, NULL, "6",              NULL
3632   },
3633   {
3634     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3635     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
3636     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
3637     &level.yamyam_content[6].e[0][0],   3, 3,
3638     NULL, NULL, NULL, "7",              NULL
3639   },
3640   {
3641     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3642     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
3643     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
3644     &level.yamyam_content[7].e[0][0],   3, 3,
3645     NULL, NULL, NULL, "8",              NULL
3646   },
3647
3648   // ---------- magic ball content --------------------------------------------
3649
3650   {
3651     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3652     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
3653     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
3654     &level.ball_content[0].e[0][0],     3, 3,
3655     NULL, NULL, NULL, "1",              NULL
3656   },
3657   {
3658     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3659     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
3660     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
3661     &level.ball_content[1].e[0][0],     3, 3,
3662     NULL, NULL, NULL, "2",              NULL
3663   },
3664   {
3665     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3666     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
3667     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
3668     &level.ball_content[2].e[0][0],     3, 3,
3669     NULL, NULL, NULL, "3",              NULL
3670   },
3671   {
3672     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3673     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
3674     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
3675     &level.ball_content[3].e[0][0],     3, 3,
3676     NULL, NULL, NULL, "4",              NULL
3677   },
3678   {
3679     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3680     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
3681     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
3682     &level.ball_content[4].e[0][0],     3, 3,
3683     NULL, NULL, NULL, "5",              NULL
3684   },
3685   {
3686     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3687     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
3688     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
3689     &level.ball_content[5].e[0][0],     3, 3,
3690     NULL, NULL, NULL, "6",              NULL
3691   },
3692   {
3693     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3694     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
3695     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
3696     &level.ball_content[6].e[0][0],     3, 3,
3697     NULL, NULL, NULL, "7",              NULL
3698   },
3699   {
3700     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3701     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
3702     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
3703     &level.ball_content[7].e[0][0],     3, 3,
3704     NULL, NULL, NULL, "8",              NULL
3705   },
3706
3707   // ---------- android content -----------------------------------------------
3708
3709   {
3710     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
3711     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3712     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
3713     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
3714     NULL, NULL, "elements:", NULL,      "elements android can clone"
3715   },
3716
3717   // ---------- amoeba content ------------------------------------------------
3718
3719   {
3720     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
3721     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3722     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
3723     &level.amoeba_content,              1, 1,
3724     "content:", NULL, NULL, NULL,       "amoeba content"
3725   },
3726
3727   // ---------- level start element -------------------------------------------
3728
3729   {
3730     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
3731     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3732     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
3733     &level.start_element[0],            1, 1,
3734     NULL, NULL, NULL, NULL,             "level start element"
3735   },
3736
3737   // ---------- player artwork element ----------------------------------------
3738
3739   {
3740     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
3741     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3742     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
3743     &level.artwork_element[0],          1, 1,
3744     NULL, NULL, NULL, NULL,             "element for player artwork"
3745   },
3746
3747   // ---------- player explosion element --------------------------------------
3748
3749   {
3750     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
3751     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3752     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
3753     &level.explosion_element[0],        1, 1,
3754     NULL, NULL, NULL, NULL,             "element for player explosion"
3755   },
3756
3757   // ---------- player initial inventory --------------------------------------
3758
3759   {
3760     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3761     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3762     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
3763     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
3764     NULL, NULL, NULL, NULL,             "content for initial inventory"
3765   },
3766
3767   // ---------- gray ball content -----------------------------------------
3768
3769   {
3770     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
3771     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3772     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
3773     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
3774     "content:", NULL, NULL, NULL,       "content for gray ball"
3775   },
3776
3777   // ---------- element settings: configure 1 (custom elements) ---------------
3778
3779   // ---------- custom graphic ------------------------------------------------
3780
3781   {
3782     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3783     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3784     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
3785     &custom_element.gfx_element_initial,1, 1,
3786     NULL, NULL, NULL, NULL,             "custom graphic element"
3787   },
3788
3789   // ---------- element settings: configure 2 (custom elements) ---------------
3790
3791   // ---------- custom content (when exploding) -------------------------------
3792
3793   {
3794     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
3795     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
3796     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
3797     &custom_element.content.e[0][0],    3, 3,
3798     "content:", NULL, NULL, NULL,       NULL
3799   },
3800
3801   // ---------- custom enter and leave element (when moving) ------------------
3802
3803   {
3804     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
3805     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3806     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
3807     &custom_element.move_enter_element, 1, 1,
3808     "can dig:", " ", NULL, NULL,        "element that can be digged/collected"
3809   },
3810   {
3811     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
3812     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3813     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
3814     &custom_element.move_leave_element, 1, 1,
3815     NULL, NULL, NULL, NULL,             "element that will be left behind"
3816   },
3817
3818   // ---------- element settings: advanced (custom elements) ------------------
3819
3820   // ---------- custom change target ------------------------------------------
3821
3822   {
3823     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3824     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3825     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
3826     &custom_element_change.target_element, 1, 1,
3827     NULL, "after/when:", NULL, NULL,    "new target element after change"
3828   },
3829
3830   // ---------- custom change content (extended change target) ----------------
3831
3832   {
3833     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
3834     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
3835     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
3836     &custom_element_change.target_content.e[0][0], 3, 3,
3837     NULL, NULL, NULL, NULL,             "new extended elements after change"
3838   },
3839
3840   // ---------- custom change trigger (element causing change) ----------------
3841
3842   {
3843     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
3844     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3845     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
3846     &custom_element_change.initial_trigger_element, 1, 1,
3847     NULL, NULL, NULL, NULL,             "other element triggering change"
3848   },
3849
3850   // ---------- custom change action (element used for action) ----------------
3851
3852   {
3853     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
3854     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3855     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
3856     &custom_element_change.action_element, 1, 1,
3857     NULL, NULL, NULL, NULL,             "element used as action parameter"
3858   },
3859
3860   // ---------- group element content -----------------------------------------
3861
3862   {
3863     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
3864     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3865     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
3866     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
3867     "content:", NULL, NULL, NULL,       NULL
3868   },
3869
3870   // ---------- random background (for random painting) -----------------------
3871
3872   {
3873     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
3874     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
3875     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
3876     &random_placement_background_element, 1, 1,
3877     NULL, NULL, NULL, NULL,             "random placement background"
3878   },
3879 };
3880
3881
3882 // ----------------------------------------------------------------------------
3883 // some internally used variables
3884 // ----------------------------------------------------------------------------
3885
3886 // maximal size of level editor drawing area
3887 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
3888
3889 // actual size of level editor drawing area
3890 static int ed_fieldx, ed_fieldy;
3891
3892 // actual position of level editor drawing area in level playfield
3893 static int level_xpos = -1, level_ypos = -1;
3894
3895 // actual tile size used to display playfield drawing area
3896 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
3897 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
3898
3899 #define IN_ED_FIELD(x,y)        IN_FIELD(x, y, ed_fieldx, ed_fieldy)
3900
3901 // drawing elements on the three mouse buttons
3902 static int new_element1 = EL_WALL;
3903 static int new_element2 = EL_EMPTY;
3904 static int new_element3 = EL_SAND;
3905
3906 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
3907 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
3908                                 (button) == 2 ? new_element2 : \
3909                                 (button) == 3 ? new_element3 : EL_EMPTY)
3910
3911 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
3912
3913 static int use_permanent_palette = TRUE;
3914
3915 #define PX              (use_permanent_palette ? DX : SX)
3916 #define PY              (use_permanent_palette ? DY : SY)
3917 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
3918 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
3919
3920 // forward declaration for internal use
3921 static void CopyBrushToCursor(int, int);
3922 static void DeleteBrushFromCursor(void);
3923 static void ModifyEditorCounterValue(int, int);
3924 static void ModifyEditorCounterLimits(int, int, int);
3925 static void ModifyEditorSelectboxValue(int, int);
3926 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
3927 static void ModifyEditorDrawingArea(int, int, int);
3928 static void ModifyEditorElementList(void);
3929 static void AdjustElementListScrollbar(void);
3930 static void RedrawDrawingElements(void);
3931 static void DrawDrawingWindowExt(boolean);
3932 static void DrawDrawingWindow(void);
3933 static void DrawLevelInfoWindow(void);
3934 static void DrawPropertiesWindow(void);
3935 static void DrawPaletteWindow(void);
3936 static void UpdateCustomElementGraphicGadgets(void);
3937 static boolean checkPropertiesConfig(int);
3938 static void SetAutomaticNumberOfGemsNeeded(void);
3939 static void ClearEditorGadgetInfoText(void);
3940 static void CopyLevelToUndoBuffer(int);
3941 static void HandleDrawingAreas(struct GadgetInfo *);
3942 static void HandleCounterButtons(struct GadgetInfo *);
3943 static void HandleTextInputGadgets(struct GadgetInfo *);
3944 static void HandleTextAreaGadgets(struct GadgetInfo *);
3945 static void HandleSelectboxGadgets(struct GadgetInfo *);
3946 static void HandleTextbuttonGadgets(struct GadgetInfo *);
3947 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
3948 static void HandleRadiobuttons(struct GadgetInfo *);
3949 static void HandleCheckbuttons(struct GadgetInfo *);
3950 static void HandleControlButtons(struct GadgetInfo *);
3951 static void HandleDrawingAreaInfo(struct GadgetInfo *);
3952 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
3953 static boolean AskToCopyAndModifyLevelTemplate(void);
3954 static boolean getDrawModeHiRes(void);
3955 static int getTabulatorBarWidth(void);
3956 static int getTabulatorBarHeight(void);
3957 static Pixel getTabulatorBarColor(void);
3958
3959 static int num_editor_gadgets = 0;      // dynamically determined
3960
3961 static struct GadgetInfo **level_editor_gadget = NULL;
3962 static int *right_gadget_border = NULL;
3963
3964 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
3965 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
3966 static boolean draw_with_brush = FALSE;
3967 static int properties_element = 0;
3968
3969 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3970 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3971 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3972 static int undo_buffer_position = 0;
3973 static int undo_buffer_steps = 0;
3974 static int redo_buffer_steps = 0;
3975
3976 static int edit_mode;
3977 static int edit_mode_levelinfo;
3978 static int edit_mode_properties;
3979
3980 static int element_shift = 0;
3981
3982 static int editor_el_players[] =
3983 {
3984   EL_PLAYER_1,
3985   EL_PLAYER_2,
3986   EL_PLAYER_3,
3987   EL_PLAYER_4
3988 };
3989 static int *editor_el_players_ptr = editor_el_players;
3990 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
3991
3992 static int editor_hl_boulderdash[] =
3993 {
3994   EL_INTERNAL_CASCADE_BD_ACTIVE,
3995   EL_CHAR('B'),
3996   EL_CHAR('D'),
3997   EL_EMPTY,
3998 };
3999
4000 static int editor_el_boulderdash[] =
4001 {
4002   EL_EMPTY,
4003   EL_SAND,
4004   EL_BD_ROCK,
4005   EL_BD_DIAMOND,
4006
4007   EL_STEELWALL,
4008   EL_BD_WALL,
4009   EL_BD_EXPANDABLE_WALL,
4010   EL_BD_MAGIC_WALL,
4011
4012   EL_BD_AMOEBA,
4013   EL_BD_BUTTERFLY_UP,
4014   EL_BD_FIREFLY_UP,
4015   EL_EXIT_CLOSED,
4016
4017   EL_BD_BUTTERFLY_LEFT,
4018   EL_BD_FIREFLY_LEFT,
4019   EL_BD_BUTTERFLY_RIGHT,
4020   EL_BD_FIREFLY_RIGHT,
4021
4022   EL_EMPTY,
4023   EL_BD_BUTTERFLY_DOWN,
4024   EL_BD_FIREFLY_DOWN,
4025   EL_EXIT_OPEN,
4026 };
4027 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4028 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4029 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4030 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4031
4032 static int editor_hl_emerald_mine[] =
4033 {
4034   EL_INTERNAL_CASCADE_EM_ACTIVE,
4035   EL_CHAR('E'),
4036   EL_CHAR('M'),
4037   EL_EMPTY,
4038 };
4039
4040 static int editor_el_emerald_mine[] =
4041 {
4042   EL_SAND,
4043   EL_ROCK,
4044   EL_QUICKSAND_EMPTY,
4045   EL_QUICKSAND_FULL,
4046
4047   EL_STEELWALL,
4048   EL_WALL,
4049   EL_WALL_SLIPPERY,
4050   EL_MAGIC_WALL,
4051
4052   EL_EMERALD,
4053   EL_DIAMOND,
4054   EL_NUT,
4055   EL_BOMB,
4056
4057   EL_EM_DYNAMITE,
4058   EL_EM_DYNAMITE_ACTIVE,
4059   EL_EM_EXIT_CLOSED,
4060   EL_EM_EXIT_OPEN,
4061
4062   EL_YAMYAM_UP,
4063   EL_BUG_UP,
4064   EL_SPACESHIP_UP,
4065   EL_ROBOT,
4066
4067   EL_BUG_LEFT,
4068   EL_SPACESHIP_LEFT,
4069   EL_BUG_RIGHT,
4070   EL_SPACESHIP_RIGHT,
4071
4072   EL_ROBOT_WHEEL,
4073   EL_BUG_DOWN,
4074   EL_SPACESHIP_DOWN,
4075   EL_INVISIBLE_WALL,
4076
4077   EL_ACID_POOL_TOPLEFT,
4078   EL_ACID,
4079   EL_ACID_POOL_TOPRIGHT,
4080   EL_AMOEBA_DROP,
4081
4082   EL_ACID_POOL_BOTTOMLEFT,
4083   EL_ACID_POOL_BOTTOM,
4084   EL_ACID_POOL_BOTTOMRIGHT,
4085   EL_AMOEBA_WET,
4086
4087   EL_EM_KEY_1,
4088   EL_EM_KEY_2,
4089   EL_EM_KEY_3,
4090   EL_EM_KEY_4,
4091
4092   EL_EM_GATE_1,
4093   EL_EM_GATE_2,
4094   EL_EM_GATE_3,
4095   EL_EM_GATE_4,
4096
4097   EL_EM_GATE_1_GRAY,
4098   EL_EM_GATE_2_GRAY,
4099   EL_EM_GATE_3_GRAY,
4100   EL_EM_GATE_4_GRAY,
4101 };
4102 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
4103 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
4104 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
4105 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
4106
4107 static int editor_hl_emerald_mine_club[] =
4108 {
4109   EL_INTERNAL_CASCADE_EMC_ACTIVE,
4110   EL_CHAR('E'),
4111   EL_CHAR('M'),
4112   EL_CHAR('C'),
4113 };
4114
4115 static int editor_el_emerald_mine_club[] =
4116 {
4117   EL_EMC_KEY_5,
4118   EL_EMC_KEY_6,
4119   EL_EMC_KEY_7,
4120   EL_EMC_KEY_8,
4121
4122   EL_EMC_GATE_5,
4123   EL_EMC_GATE_6,
4124   EL_EMC_GATE_7,
4125   EL_EMC_GATE_8,
4126
4127   EL_EMC_GATE_5_GRAY,
4128   EL_EMC_GATE_6_GRAY,
4129   EL_EMC_GATE_7_GRAY,
4130   EL_EMC_GATE_8_GRAY,
4131
4132   EL_EMC_STEELWALL_1,
4133   EL_EMC_STEELWALL_2,
4134   EL_EMC_STEELWALL_3,
4135   EL_EMC_STEELWALL_4,
4136
4137   EL_EMC_WALL_13,
4138   EL_EMC_WALL_14,
4139   EL_EMC_WALL_15,
4140   EL_EMC_WALL_16,
4141
4142   EL_EMC_WALL_SLIPPERY_1,
4143   EL_EMC_WALL_SLIPPERY_2,
4144   EL_EMC_WALL_SLIPPERY_3,
4145   EL_EMC_WALL_SLIPPERY_4,
4146
4147   EL_EMC_WALL_1,
4148   EL_EMC_WALL_2,
4149   EL_EMC_WALL_3,
4150   EL_EMC_WALL_4,
4151
4152   EL_EMC_WALL_5,
4153   EL_EMC_WALL_6,
4154   EL_EMC_WALL_7,
4155   EL_EMC_WALL_8,
4156
4157   EL_EMC_WALL_9,
4158   EL_EMC_WALL_10,
4159   EL_EMC_WALL_11,
4160   EL_EMC_WALL_12,
4161
4162   EL_EMC_GRASS,
4163   EL_EMC_FAKE_GRASS,
4164   EL_EMC_PLANT,
4165   EL_EMC_DRIPPER,
4166
4167   EL_EMC_MAGIC_BALL,
4168   EL_EMC_MAGIC_BALL_SWITCH,
4169   EL_EMC_LENSES,
4170   EL_EMC_MAGNIFIER,
4171
4172   EL_SPRING_LEFT,
4173   EL_SPRING,
4174   EL_SPRING_RIGHT,
4175   EL_EMC_SPRING_BUMPER,
4176
4177   EL_BALLOON,
4178   EL_YAMYAM_UP,
4179   EL_BALLOON_SWITCH_UP,
4180   EL_BALLOON_SWITCH_ANY,
4181
4182   EL_YAMYAM_LEFT,
4183   EL_BALLOON_SWITCH_LEFT,
4184   EL_YAMYAM_RIGHT,
4185   EL_BALLOON_SWITCH_RIGHT,
4186
4187   EL_EMC_ANDROID,
4188   EL_YAMYAM_DOWN,
4189   EL_BALLOON_SWITCH_DOWN,
4190   EL_BALLOON_SWITCH_NONE,
4191 };
4192 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
4193 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
4194 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
4195 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
4196
4197 static int editor_hl_rnd[] =
4198 {
4199   EL_INTERNAL_CASCADE_RND_ACTIVE,
4200   EL_CHAR('R'),
4201   EL_CHAR('N'),
4202   EL_CHAR('D'),
4203 };
4204
4205 static int editor_el_rnd[] =
4206 {
4207   EL_DYNAMITE,                  // RND
4208   EL_DYNAMITE_ACTIVE,           // RND
4209   EL_EMPTY,
4210   EL_EMPTY,
4211
4212   EL_KEY_1,
4213   EL_KEY_2,
4214   EL_KEY_3,
4215   EL_KEY_4,
4216
4217   EL_GATE_1,
4218   EL_GATE_2,
4219   EL_GATE_3,
4220   EL_GATE_4,
4221
4222   EL_GATE_1_GRAY,
4223   EL_GATE_2_GRAY,
4224   EL_GATE_3_GRAY,
4225   EL_GATE_4_GRAY,
4226
4227   EL_ARROW_LEFT,
4228   EL_ARROW_RIGHT,
4229   EL_ARROW_UP,
4230   EL_ARROW_DOWN,
4231
4232   EL_AMOEBA_DEAD,
4233   EL_AMOEBA_DRY,
4234   EL_AMOEBA_FULL,
4235   EL_GAME_OF_LIFE,
4236
4237   EL_EMERALD_YELLOW,
4238   EL_EMERALD_RED,
4239   EL_EMERALD_PURPLE,
4240   EL_BIOMAZE,
4241
4242   EL_WALL_EMERALD_YELLOW,
4243   EL_WALL_EMERALD_RED,
4244   EL_WALL_EMERALD_PURPLE,
4245   EL_WALL_BD_DIAMOND,
4246
4247   EL_SPEED_PILL,
4248   EL_PACMAN_UP,
4249   EL_TIME_ORB_FULL,
4250   EL_TIME_ORB_EMPTY,
4251
4252   EL_PACMAN_LEFT,
4253   EL_DARK_YAMYAM,
4254   EL_PACMAN_RIGHT,
4255   EL_YAMYAM,                    // RND
4256
4257   EL_BLACK_ORB,
4258   EL_PACMAN_DOWN,
4259   EL_LAMP,
4260   EL_LAMP_ACTIVE,
4261
4262   EL_DYNABOMB_INCREASE_NUMBER,
4263   EL_DYNABOMB_INCREASE_SIZE,
4264   EL_DYNABOMB_INCREASE_POWER,
4265   EL_STONEBLOCK,
4266
4267   EL_MOLE,
4268   EL_PENGUIN,
4269   EL_PIG,
4270   EL_DRAGON,
4271
4272   EL_BUG,
4273   EL_MOLE_UP,
4274   EL_BD_BUTTERFLY,
4275   EL_BD_FIREFLY,
4276
4277   EL_MOLE_LEFT,
4278   EL_SATELLITE,
4279   EL_MOLE_RIGHT,
4280   EL_PACMAN,
4281
4282   EL_SPACESHIP,
4283   EL_MOLE_DOWN,
4284   EL_INVISIBLE_STEELWALL,
4285   EL_INVISIBLE_WALL,
4286
4287   EL_EXPANDABLE_WALL,
4288   EL_EXPANDABLE_WALL_HORIZONTAL,
4289   EL_EXPANDABLE_WALL_VERTICAL,
4290   EL_EXPANDABLE_WALL_ANY,
4291 };
4292 static int *editor_hl_rnd_ptr = editor_hl_rnd;
4293 static int *editor_el_rnd_ptr = editor_el_rnd;
4294 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
4295 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
4296
4297 static int editor_hl_sokoban[] =
4298 {
4299   EL_INTERNAL_CASCADE_SB_ACTIVE,
4300   EL_CHAR('S'),
4301   EL_CHAR('B'),
4302   EL_EMPTY,
4303 };
4304
4305 static int editor_el_sokoban[] =
4306 {
4307   EL_SOKOBAN_OBJECT,
4308   EL_SOKOBAN_FIELD_EMPTY,
4309   EL_SOKOBAN_FIELD_FULL,
4310   EL_SOKOBAN_FIELD_PLAYER,
4311 };
4312 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
4313 static int *editor_el_sokoban_ptr = editor_el_sokoban;
4314 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
4315 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
4316
4317 static int editor_hl_supaplex[] =
4318 {
4319   EL_INTERNAL_CASCADE_SP_ACTIVE,
4320   EL_CHAR('S'),
4321   EL_CHAR('P'),
4322   EL_EMPTY,
4323 };
4324
4325 static int editor_el_supaplex[] =
4326 {
4327   EL_SP_MURPHY,
4328   EL_EMPTY,
4329   EL_SP_BASE,
4330   EL_SP_BUGGY_BASE,
4331
4332   EL_SP_INFOTRON,
4333   EL_SP_ZONK,
4334   EL_SP_SNIKSNAK,
4335   EL_SP_ELECTRON,
4336
4337   EL_SP_DISK_RED,
4338   EL_SP_DISK_ORANGE,
4339   EL_SP_DISK_YELLOW,
4340   EL_SP_TERMINAL,
4341
4342   EL_SP_EXIT_CLOSED,
4343   EL_SP_PORT_HORIZONTAL,
4344   EL_SP_PORT_VERTICAL,
4345   EL_SP_PORT_ANY,
4346
4347   EL_SP_PORT_LEFT,
4348   EL_SP_PORT_RIGHT,
4349   EL_SP_PORT_UP,
4350   EL_SP_PORT_DOWN,
4351
4352   EL_SP_GRAVITY_PORT_LEFT,
4353   EL_SP_GRAVITY_PORT_RIGHT,
4354   EL_SP_GRAVITY_PORT_UP,
4355   EL_SP_GRAVITY_PORT_DOWN,
4356
4357   EL_SP_GRAVITY_ON_PORT_LEFT,
4358   EL_SP_GRAVITY_ON_PORT_RIGHT,
4359   EL_SP_GRAVITY_ON_PORT_UP,
4360   EL_SP_GRAVITY_ON_PORT_DOWN,
4361
4362   EL_SP_GRAVITY_OFF_PORT_LEFT,
4363   EL_SP_GRAVITY_OFF_PORT_RIGHT,
4364   EL_SP_GRAVITY_OFF_PORT_UP,
4365   EL_SP_GRAVITY_OFF_PORT_DOWN,
4366
4367   EL_SP_HARDWARE_GRAY,
4368   EL_SP_HARDWARE_GREEN,
4369   EL_SP_HARDWARE_BLUE,
4370   EL_SP_HARDWARE_RED,
4371
4372   EL_SP_HARDWARE_BASE_1,
4373   EL_SP_HARDWARE_BASE_2,
4374   EL_SP_HARDWARE_BASE_3,
4375   EL_SP_HARDWARE_BASE_4,
4376
4377   EL_SP_HARDWARE_BASE_5,
4378   EL_SP_HARDWARE_BASE_6,
4379   EL_SP_HARDWARE_YELLOW,
4380   EL_SP_CHIP_TOP,
4381
4382   EL_SP_CHIP_SINGLE,
4383   EL_SP_CHIP_LEFT,
4384   EL_SP_CHIP_RIGHT,
4385   EL_SP_CHIP_BOTTOM,
4386 };
4387 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
4388 static int *editor_el_supaplex_ptr = editor_el_supaplex;
4389 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
4390 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
4391
4392 static int editor_hl_diamond_caves[] =
4393 {
4394   EL_INTERNAL_CASCADE_DC_ACTIVE,
4395   EL_CHAR('D'),
4396   EL_CHAR('C'),
4397   EL_CHAR('2'),
4398 };
4399
4400 static int editor_el_diamond_caves[] =
4401 {
4402   EL_EM_STEEL_EXIT_CLOSED,      // DC2
4403   EL_EM_STEEL_EXIT_OPEN,        // DC2
4404   EL_WALL_EMERALD,              // DC2
4405   EL_WALL_DIAMOND,              // DC2
4406
4407   EL_PEARL,
4408   EL_CRYSTAL,
4409   EL_WALL_PEARL,
4410   EL_WALL_CRYSTAL,
4411
4412   EL_CONVEYOR_BELT_1_LEFT,
4413   EL_CONVEYOR_BELT_1_MIDDLE,
4414   EL_CONVEYOR_BELT_1_RIGHT,
4415   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
4416
4417   EL_CONVEYOR_BELT_2_LEFT,
4418   EL_CONVEYOR_BELT_2_MIDDLE,
4419   EL_CONVEYOR_BELT_2_RIGHT,
4420   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
4421
4422   EL_CONVEYOR_BELT_3_LEFT,
4423   EL_CONVEYOR_BELT_3_MIDDLE,
4424   EL_CONVEYOR_BELT_3_RIGHT,
4425   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
4426
4427   EL_CONVEYOR_BELT_4_LEFT,
4428   EL_CONVEYOR_BELT_4_MIDDLE,
4429   EL_CONVEYOR_BELT_4_RIGHT,
4430   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
4431
4432   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
4433   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
4434   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
4435   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
4436
4437   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
4438   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
4439   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
4440   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
4441
4442   EL_TIMEGATE_CLOSED,
4443   EL_TIMEGATE_OPEN,
4444   EL_TIMEGATE_SWITCH,
4445   EL_DC_TIMEGATE_SWITCH,
4446
4447   EL_SWITCHGATE_CLOSED,
4448   EL_SWITCHGATE_OPEN,
4449   EL_SWITCHGATE_SWITCH_UP,
4450   EL_SWITCHGATE_SWITCH_DOWN,
4451
4452   EL_LIGHT_SWITCH,
4453   EL_LIGHT_SWITCH_ACTIVE,
4454   EL_DC_SWITCHGATE_SWITCH_UP,
4455   EL_DC_SWITCHGATE_SWITCH_DOWN,
4456
4457   EL_STEEL_EXIT_CLOSED,
4458   EL_STEEL_EXIT_OPEN,
4459   EL_STEELWALL_SLIPPERY,
4460   EL_INVISIBLE_SAND,
4461
4462   EL_QUICKSAND_FAST_EMPTY,
4463   EL_QUICKSAND_FAST_FULL,
4464   EL_LANDMINE,
4465   EL_DC_LANDMINE,
4466
4467   EL_SHIELD_NORMAL,
4468   EL_SHIELD_DEADLY,
4469   EL_EXTRA_TIME,
4470   EL_DC_MAGIC_WALL,
4471
4472   EL_ENVELOPE_1,
4473   EL_ENVELOPE_2,
4474   EL_ENVELOPE_3,
4475   EL_ENVELOPE_4,
4476
4477   EL_SIGN_RADIOACTIVITY,
4478   EL_SIGN_WHEELCHAIR,
4479   EL_SIGN_PARKING,
4480   EL_SIGN_NO_ENTRY,
4481
4482   EL_SIGN_GIVE_WAY,
4483   EL_SIGN_ENTRY_FORBIDDEN,
4484   EL_SIGN_EMERGENCY_EXIT,
4485   EL_SIGN_YIN_YANG,
4486
4487 #if 0
4488   EL_SIGN_SPERMS,
4489   EL_SIGN_BULLET,
4490   EL_SIGN_HEART,
4491   EL_SIGN_CROSS,
4492
4493   EL_SIGN_FRANKIE,
4494   EL_EMPTY,
4495   EL_EMPTY,
4496   EL_EMPTY,
4497
4498   EL_SPERMS,
4499   EL_BULLET,
4500   EL_HEART,
4501   EL_CROSS,
4502
4503   EL_FRANKIE,
4504   EL_EMPTY,
4505   EL_EMPTY,
4506   EL_EMPTY,
4507 #endif
4508
4509   EL_DC_STEELWALL_2_SINGLE,
4510   EL_DC_STEELWALL_2_TOP,
4511   EL_SIGN_EXCLAMATION,
4512   EL_SIGN_STOP,
4513
4514   EL_DC_STEELWALL_2_LEFT,
4515   EL_DC_STEELWALL_2_MIDDLE,
4516   EL_DC_STEELWALL_2_HORIZONTAL,
4517   EL_DC_STEELWALL_2_RIGHT,
4518
4519   EL_DC_STEELWALL_1_TOPLEFT,
4520   EL_DC_STEELWALL_2_VERTICAL,
4521   EL_DC_STEELWALL_1_TOPRIGHT,
4522   EL_DC_GATE_WHITE,
4523
4524   EL_DC_STEELWALL_1_VERTICAL,
4525   EL_DC_STEELWALL_2_BOTTOM,
4526   EL_DC_KEY_WHITE,
4527   EL_DC_GATE_WHITE_GRAY,
4528
4529   EL_DC_STEELWALL_1_BOTTOMLEFT,
4530   EL_DC_STEELWALL_1_HORIZONTAL,
4531   EL_DC_STEELWALL_1_BOTTOMRIGHT,
4532   EL_DC_GATE_FAKE_GRAY,
4533
4534   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
4535   EL_DC_STEELWALL_1_BOTTOM,
4536   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
4537   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
4538
4539   EL_DC_STEELWALL_1_RIGHT,
4540   EL_EMPTY,
4541   EL_DC_STEELWALL_1_LEFT,
4542   EL_EXPANDABLE_STEELWALL_VERTICAL,
4543
4544   EL_DC_STEELWALL_1_TOPRIGHT_2,
4545   EL_DC_STEELWALL_1_TOP,
4546   EL_DC_STEELWALL_1_TOPLEFT_2,
4547   EL_EXPANDABLE_STEELWALL_ANY,
4548 };
4549 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
4550 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
4551 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
4552 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
4553
4554 static int editor_hl_dx_boulderdash[] =
4555 {
4556   EL_INTERNAL_CASCADE_DX_ACTIVE,
4557   EL_CHAR('D'),
4558   EL_CHAR('X'),
4559   EL_EMPTY,
4560 };
4561
4562 static int editor_el_dx_boulderdash[] =
4563 {
4564   EL_EMPTY,
4565   EL_TUBE_RIGHT_DOWN,
4566   EL_TUBE_HORIZONTAL_DOWN,
4567   EL_TUBE_LEFT_DOWN,
4568
4569   EL_TUBE_HORIZONTAL,
4570   EL_TUBE_VERTICAL_RIGHT,
4571   EL_TUBE_ANY,
4572   EL_TUBE_VERTICAL_LEFT,
4573
4574   EL_TUBE_VERTICAL,
4575   EL_TUBE_RIGHT_UP,
4576   EL_TUBE_HORIZONTAL_UP,
4577   EL_TUBE_LEFT_UP,
4578
4579   EL_TRAP,
4580   EL_DX_SUPABOMB,
4581   EL_EMPTY,
4582   EL_EMPTY
4583 };
4584 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
4585 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
4586 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
4587 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
4588
4589 static int editor_hl_mirror_magic[] =
4590 {
4591   EL_INTERNAL_CASCADE_MM_ACTIVE,
4592   EL_CHAR('M'),
4593   EL_CHAR('M'),
4594   EL_EMPTY,
4595 };
4596
4597 static int editor_el_mirror_magic[] =
4598 {
4599   EL_MM_MCDUFFIN_RIGHT,
4600   EL_MM_MCDUFFIN_UP,
4601   EL_MM_MCDUFFIN_LEFT,
4602   EL_MM_MCDUFFIN_DOWN,
4603
4604   EL_MM_MIRROR_START,
4605   EL_MM_MIRROR_FIXED_START,
4606   EL_MM_POLARIZER_START,
4607   EL_MM_POLARIZER_CROSS_START,
4608
4609   EL_MM_TELEPORTER_RED_START,
4610   EL_MM_TELEPORTER_YELLOW_START,
4611   EL_MM_TELEPORTER_GREEN_START,
4612   EL_MM_TELEPORTER_BLUE_START,
4613
4614   EL_MM_PRISM,
4615   EL_MM_FUSE_ACTIVE,
4616   EL_MM_PACMAN_RIGHT,
4617   EL_MM_EXIT_CLOSED,
4618
4619   EL_MM_KETTLE,
4620   EL_MM_BOMB,
4621   EL_MM_KEY,
4622   EL_MM_FUEL_FULL,
4623
4624   EL_MM_LIGHTBULB,
4625   EL_MM_LIGHTBULB_ACTIVE,
4626   EL_MM_GRAY_BALL,
4627   EL_MM_LIGHTBALL,
4628
4629   EL_MM_STEEL_WALL,
4630   EL_MM_WOODEN_WALL,
4631   EL_MM_ICE_WALL,
4632   EL_MM_AMOEBA_WALL,
4633
4634   EL_MM_STEEL_LOCK,
4635   EL_MM_WOODEN_LOCK,
4636   EL_MM_STEEL_BLOCK,
4637   EL_MM_WOODEN_BLOCK,
4638
4639   EL_MM_STEEL_GRID_FIXED_1,
4640   EL_MM_STEEL_GRID_FIXED_2,
4641   EL_MM_STEEL_GRID_FIXED_3,
4642   EL_MM_STEEL_GRID_FIXED_4,
4643
4644   EL_MM_WOODEN_GRID_FIXED_1,
4645   EL_MM_WOODEN_GRID_FIXED_2,
4646   EL_MM_WOODEN_GRID_FIXED_3,
4647   EL_MM_WOODEN_GRID_FIXED_4,
4648
4649   EL_MM_ENVELOPE_1,
4650   EL_MM_ENVELOPE_2,
4651   EL_MM_ENVELOPE_3,
4652   EL_MM_ENVELOPE_4
4653 };
4654 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
4655 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
4656 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
4657 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
4658
4659 static int editor_hl_deflektor[] =
4660 {
4661   EL_INTERNAL_CASCADE_DF_ACTIVE,
4662   EL_CHAR('D'),
4663   EL_CHAR('F'),
4664   EL_EMPTY,
4665 };
4666
4667 static int editor_el_deflektor[] =
4668 {
4669   EL_DF_LASER_RIGHT,
4670   EL_DF_LASER_UP,
4671   EL_DF_LASER_LEFT,
4672   EL_DF_LASER_DOWN,
4673
4674   EL_DF_RECEIVER_RIGHT,
4675   EL_DF_RECEIVER_UP,
4676   EL_DF_RECEIVER_LEFT,
4677   EL_DF_RECEIVER_DOWN,
4678
4679   EL_DF_MIRROR_START,
4680   EL_DF_MIRROR_ROTATING_START,
4681   EL_DF_CELL,
4682   EL_DF_MINE,
4683
4684   EL_DF_FIBRE_OPTIC_RED_1,
4685   EL_DF_FIBRE_OPTIC_YELLOW_1,
4686   EL_DF_FIBRE_OPTIC_GREEN_1,
4687   EL_DF_FIBRE_OPTIC_BLUE_1,
4688
4689   EL_DF_STEEL_GRID_FIXED_START,
4690   EL_DF_STEEL_GRID_ROTATING_START,
4691   EL_DF_WOODEN_GRID_FIXED_START,
4692   EL_DF_WOODEN_GRID_ROTATING_START,
4693
4694   EL_DF_STEEL_WALL,
4695   EL_DF_WOODEN_WALL,
4696   EL_DF_REFRACTOR,
4697   EL_EMPTY
4698 };
4699 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
4700 static int *editor_el_deflektor_ptr = editor_el_deflektor;
4701 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
4702 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
4703
4704 static int editor_hl_chars[] =
4705 {
4706   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
4707   EL_CHAR('T'),
4708   EL_CHAR('X'),
4709   EL_CHAR('T'),
4710 };
4711
4712 static int editor_el_chars[] =
4713 {
4714   EL_CHAR(' '),
4715   EL_CHAR('!'),
4716   EL_CHAR('"'),
4717   EL_CHAR('#'),
4718
4719   EL_CHAR('$'),
4720   EL_CHAR('%'),
4721   EL_CHAR('&'),
4722   EL_CHAR('\''),
4723
4724   EL_CHAR('('),
4725   EL_CHAR(')'),
4726   EL_CHAR('*'),
4727   EL_CHAR('+'),
4728
4729   EL_CHAR(','),
4730   EL_CHAR('-'),
4731   EL_CHAR('.'),
4732   EL_CHAR('/'),
4733
4734   EL_CHAR('0'),
4735   EL_CHAR('1'),
4736   EL_CHAR('2'),
4737   EL_CHAR('3'),
4738
4739   EL_CHAR('4'),
4740   EL_CHAR('5'),
4741   EL_CHAR('6'),
4742   EL_CHAR('7'),
4743
4744   EL_CHAR('8'),
4745   EL_CHAR('9'),
4746   EL_CHAR(':'),
4747   EL_CHAR(';'),
4748
4749   EL_CHAR('<'),
4750   EL_CHAR('='),
4751   EL_CHAR('>'),
4752   EL_CHAR('?'),
4753
4754   EL_CHAR('@'),
4755   EL_CHAR('A'),
4756   EL_CHAR('B'),
4757   EL_CHAR('C'),
4758
4759   EL_CHAR('D'),
4760   EL_CHAR('E'),
4761   EL_CHAR('F'),
4762   EL_CHAR('G'),
4763
4764   EL_CHAR('H'),
4765   EL_CHAR('I'),
4766   EL_CHAR('J'),
4767   EL_CHAR('K'),
4768
4769   EL_CHAR('L'),
4770   EL_CHAR('M'),
4771   EL_CHAR('N'),
4772   EL_CHAR('O'),
4773
4774   EL_CHAR('P'),
4775   EL_CHAR('Q'),
4776   EL_CHAR('R'),
4777   EL_CHAR('S'),
4778
4779   EL_CHAR('T'),
4780   EL_CHAR('U'),
4781   EL_CHAR('V'),
4782   EL_CHAR('W'),
4783
4784   EL_CHAR('X'),
4785   EL_CHAR('Y'),
4786   EL_CHAR('Z'),
4787   EL_CHAR('['),
4788
4789   EL_CHAR('\\'),
4790   EL_CHAR(']'),
4791   EL_CHAR('^'),
4792   EL_CHAR('_'),
4793
4794   EL_CHAR(CHAR_BYTE_COPYRIGHT),
4795   EL_CHAR(CHAR_BYTE_UMLAUT_A),
4796   EL_CHAR(CHAR_BYTE_UMLAUT_O),
4797   EL_CHAR(CHAR_BYTE_UMLAUT_U),
4798
4799   EL_CHAR(CHAR_BYTE_DEGREE),
4800   EL_CHAR(CHAR_BYTE_REGISTERED),
4801   EL_CHAR(FONT_ASCII_CURSOR),
4802   EL_CHAR(FONT_ASCII_BUTTON),
4803
4804   EL_CHAR(FONT_ASCII_UP),
4805   EL_CHAR(FONT_ASCII_DOWN),
4806   EL_CHAR(' '),
4807   EL_CHAR(' ')
4808 };
4809 static int *editor_hl_chars_ptr = editor_hl_chars;
4810 static int *editor_el_chars_ptr = editor_el_chars;
4811 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
4812 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
4813
4814 static int editor_hl_steel_chars[] =
4815 {
4816   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
4817   EL_STEEL_CHAR('T'),
4818   EL_STEEL_CHAR('X'),
4819   EL_STEEL_CHAR('T'),
4820 };
4821
4822 static int editor_el_steel_chars[] =
4823 {
4824   EL_STEEL_CHAR(' '),
4825   EL_STEEL_CHAR('!'),
4826   EL_STEEL_CHAR('"'),
4827   EL_STEEL_CHAR('#'),
4828
4829   EL_STEEL_CHAR('$'),
4830   EL_STEEL_CHAR('%'),
4831   EL_STEEL_CHAR('&'),
4832   EL_STEEL_CHAR('\''),
4833
4834   EL_STEEL_CHAR('('),
4835   EL_STEEL_CHAR(')'),
4836   EL_STEEL_CHAR('*'),
4837   EL_STEEL_CHAR('+'),
4838
4839   EL_STEEL_CHAR(','),
4840   EL_STEEL_CHAR('-'),
4841   EL_STEEL_CHAR('.'),
4842   EL_STEEL_CHAR('/'),
4843
4844   EL_STEEL_CHAR('0'),
4845   EL_STEEL_CHAR('1'),
4846   EL_STEEL_CHAR('2'),
4847   EL_STEEL_CHAR('3'),
4848
4849   EL_STEEL_CHAR('4'),
4850   EL_STEEL_CHAR('5'),
4851   EL_STEEL_CHAR('6'),
4852   EL_STEEL_CHAR('7'),
4853
4854   EL_STEEL_CHAR('8'),
4855   EL_STEEL_CHAR('9'),
4856   EL_STEEL_CHAR(':'),
4857   EL_STEEL_CHAR(';'),
4858
4859   EL_STEEL_CHAR('<'),
4860   EL_STEEL_CHAR('='),
4861   EL_STEEL_CHAR('>'),
4862   EL_STEEL_CHAR('?'),
4863
4864   EL_STEEL_CHAR('@'),
4865   EL_STEEL_CHAR('A'),
4866   EL_STEEL_CHAR('B'),
4867   EL_STEEL_CHAR('C'),
4868
4869   EL_STEEL_CHAR('D'),
4870   EL_STEEL_CHAR('E'),
4871   EL_STEEL_CHAR('F'),
4872   EL_STEEL_CHAR('G'),
4873
4874   EL_STEEL_CHAR('H'),
4875   EL_STEEL_CHAR('I'),
4876   EL_STEEL_CHAR('J'),
4877   EL_STEEL_CHAR('K'),
4878
4879   EL_STEEL_CHAR('L'),
4880   EL_STEEL_CHAR('M'),
4881   EL_STEEL_CHAR('N'),
4882   EL_STEEL_CHAR('O'),
4883
4884   EL_STEEL_CHAR('P'),
4885   EL_STEEL_CHAR('Q'),
4886   EL_STEEL_CHAR('R'),
4887   EL_STEEL_CHAR('S'),
4888
4889   EL_STEEL_CHAR('T'),
4890   EL_STEEL_CHAR('U'),
4891   EL_STEEL_CHAR('V'),
4892   EL_STEEL_CHAR('W'),
4893
4894   EL_STEEL_CHAR('X'),
4895   EL_STEEL_CHAR('Y'),
4896   EL_STEEL_CHAR('Z'),
4897   EL_STEEL_CHAR('['),
4898
4899   EL_STEEL_CHAR('\\'),
4900   EL_STEEL_CHAR(']'),
4901   EL_STEEL_CHAR('^'),
4902   EL_STEEL_CHAR('_'),
4903
4904   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
4905   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
4906   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
4907   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
4908
4909   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
4910   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
4911   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
4912   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
4913
4914   EL_STEEL_CHAR(FONT_ASCII_UP),
4915   EL_STEEL_CHAR(FONT_ASCII_DOWN),
4916   EL_STEEL_CHAR(' '),
4917   EL_STEEL_CHAR(' ')
4918 };
4919 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
4920 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
4921 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
4922 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
4923
4924 static int editor_hl_custom[] =
4925 {
4926   EL_INTERNAL_CASCADE_CE_ACTIVE,
4927   EL_CHAR('C'),
4928   EL_CHAR('E'),
4929   EL_EMPTY,
4930 };
4931
4932 static int editor_el_custom[] =
4933 {
4934   EL_CUSTOM_START + 0,
4935   EL_CUSTOM_START + 1,
4936   EL_CUSTOM_START + 2,
4937   EL_CUSTOM_START + 3,
4938
4939   EL_CUSTOM_START + 4,
4940   EL_CUSTOM_START + 5,
4941   EL_CUSTOM_START + 6,
4942   EL_CUSTOM_START + 7,
4943
4944   EL_CUSTOM_START + 8,
4945   EL_CUSTOM_START + 9,
4946   EL_CUSTOM_START + 10,
4947   EL_CUSTOM_START + 11,
4948
4949   EL_CUSTOM_START + 12,
4950   EL_CUSTOM_START + 13,
4951   EL_CUSTOM_START + 14,
4952   EL_CUSTOM_START + 15,
4953
4954   EL_CUSTOM_START + 16,
4955   EL_CUSTOM_START + 17,
4956   EL_CUSTOM_START + 18,
4957   EL_CUSTOM_START + 19,
4958
4959   EL_CUSTOM_START + 20,
4960   EL_CUSTOM_START + 21,
4961   EL_CUSTOM_START + 22,
4962   EL_CUSTOM_START + 23,
4963
4964   EL_CUSTOM_START + 24,
4965   EL_CUSTOM_START + 25,
4966   EL_CUSTOM_START + 26,
4967   EL_CUSTOM_START + 27,
4968
4969   EL_CUSTOM_START + 28,
4970   EL_CUSTOM_START + 29,
4971   EL_CUSTOM_START + 30,
4972   EL_CUSTOM_START + 31,
4973
4974   EL_CUSTOM_START + 32,
4975   EL_CUSTOM_START + 33,
4976   EL_CUSTOM_START + 34,
4977   EL_CUSTOM_START + 35,
4978
4979   EL_CUSTOM_START + 36,
4980   EL_CUSTOM_START + 37,
4981   EL_CUSTOM_START + 38,
4982   EL_CUSTOM_START + 39,
4983
4984   EL_CUSTOM_START + 40,
4985   EL_CUSTOM_START + 41,
4986   EL_CUSTOM_START + 42,
4987   EL_CUSTOM_START + 43,
4988
4989   EL_CUSTOM_START + 44,
4990   EL_CUSTOM_START + 45,
4991   EL_CUSTOM_START + 46,
4992   EL_CUSTOM_START + 47,
4993
4994   EL_CUSTOM_START + 48,
4995   EL_CUSTOM_START + 49,
4996   EL_CUSTOM_START + 50,
4997   EL_CUSTOM_START + 51,
4998
4999   EL_CUSTOM_START + 52,
5000   EL_CUSTOM_START + 53,
5001   EL_CUSTOM_START + 54,
5002   EL_CUSTOM_START + 55,
5003
5004   EL_CUSTOM_START + 56,
5005   EL_CUSTOM_START + 57,
5006   EL_CUSTOM_START + 58,
5007   EL_CUSTOM_START + 59,
5008
5009   EL_CUSTOM_START + 60,
5010   EL_CUSTOM_START + 61,
5011   EL_CUSTOM_START + 62,
5012   EL_CUSTOM_START + 63,
5013
5014   EL_CUSTOM_START + 64,
5015   EL_CUSTOM_START + 65,
5016   EL_CUSTOM_START + 66,
5017   EL_CUSTOM_START + 67,
5018
5019   EL_CUSTOM_START + 68,
5020   EL_CUSTOM_START + 69,
5021   EL_CUSTOM_START + 70,
5022   EL_CUSTOM_START + 71,
5023
5024   EL_CUSTOM_START + 72,
5025   EL_CUSTOM_START + 73,
5026   EL_CUSTOM_START + 74,
5027   EL_CUSTOM_START + 75,
5028
5029   EL_CUSTOM_START + 76,
5030   EL_CUSTOM_START + 77,
5031   EL_CUSTOM_START + 78,
5032   EL_CUSTOM_START + 79,
5033
5034   EL_CUSTOM_START + 80,
5035   EL_CUSTOM_START + 81,
5036   EL_CUSTOM_START + 82,
5037   EL_CUSTOM_START + 83,
5038
5039   EL_CUSTOM_START + 84,
5040   EL_CUSTOM_START + 85,
5041   EL_CUSTOM_START + 86,
5042   EL_CUSTOM_START + 87,
5043
5044   EL_CUSTOM_START + 88,
5045   EL_CUSTOM_START + 89,
5046   EL_CUSTOM_START + 90,
5047   EL_CUSTOM_START + 91,
5048
5049   EL_CUSTOM_START + 92,
5050   EL_CUSTOM_START + 93,
5051   EL_CUSTOM_START + 94,
5052   EL_CUSTOM_START + 95,
5053
5054   EL_CUSTOM_START + 96,
5055   EL_CUSTOM_START + 97,
5056   EL_CUSTOM_START + 98,
5057   EL_CUSTOM_START + 99,
5058
5059   EL_CUSTOM_START + 100,
5060   EL_CUSTOM_START + 101,
5061   EL_CUSTOM_START + 102,
5062   EL_CUSTOM_START + 103,
5063
5064   EL_CUSTOM_START + 104,
5065   EL_CUSTOM_START + 105,
5066   EL_CUSTOM_START + 106,
5067   EL_CUSTOM_START + 107,
5068
5069   EL_CUSTOM_START + 108,
5070   EL_CUSTOM_START + 109,
5071   EL_CUSTOM_START + 110,
5072   EL_CUSTOM_START + 111,
5073
5074   EL_CUSTOM_START + 112,
5075   EL_CUSTOM_START + 113,
5076   EL_CUSTOM_START + 114,
5077   EL_CUSTOM_START + 115,
5078
5079   EL_CUSTOM_START + 116,
5080   EL_CUSTOM_START + 117,
5081   EL_CUSTOM_START + 118,
5082   EL_CUSTOM_START + 119,
5083
5084   EL_CUSTOM_START + 120,
5085   EL_CUSTOM_START + 121,
5086   EL_CUSTOM_START + 122,
5087   EL_CUSTOM_START + 123,
5088
5089   EL_CUSTOM_START + 124,
5090   EL_CUSTOM_START + 125,
5091   EL_CUSTOM_START + 126,
5092   EL_CUSTOM_START + 127,
5093
5094   EL_CUSTOM_START + 128,
5095   EL_CUSTOM_START + 129,
5096   EL_CUSTOM_START + 130,
5097   EL_CUSTOM_START + 131,
5098
5099   EL_CUSTOM_START + 132,
5100   EL_CUSTOM_START + 133,
5101   EL_CUSTOM_START + 134,
5102   EL_CUSTOM_START + 135,
5103
5104   EL_CUSTOM_START + 136,
5105   EL_CUSTOM_START + 137,
5106   EL_CUSTOM_START + 138,
5107   EL_CUSTOM_START + 139,
5108
5109   EL_CUSTOM_START + 140,
5110   EL_CUSTOM_START + 141,
5111   EL_CUSTOM_START + 142,
5112   EL_CUSTOM_START + 143,
5113
5114   EL_CUSTOM_START + 144,
5115   EL_CUSTOM_START + 145,
5116   EL_CUSTOM_START + 146,
5117   EL_CUSTOM_START + 147,
5118
5119   EL_CUSTOM_START + 148,
5120   EL_CUSTOM_START + 149,
5121   EL_CUSTOM_START + 150,
5122   EL_CUSTOM_START + 151,
5123
5124   EL_CUSTOM_START + 152,
5125   EL_CUSTOM_START + 153,
5126   EL_CUSTOM_START + 154,
5127   EL_CUSTOM_START + 155,
5128
5129   EL_CUSTOM_START + 156,
5130   EL_CUSTOM_START + 157,
5131   EL_CUSTOM_START + 158,
5132   EL_CUSTOM_START + 159,
5133
5134   EL_CUSTOM_START + 160,
5135   EL_CUSTOM_START + 161,
5136   EL_CUSTOM_START + 162,
5137   EL_CUSTOM_START + 163,
5138
5139   EL_CUSTOM_START + 164,
5140   EL_CUSTOM_START + 165,
5141   EL_CUSTOM_START + 166,
5142   EL_CUSTOM_START + 167,
5143
5144   EL_CUSTOM_START + 168,
5145   EL_CUSTOM_START + 169,
5146   EL_CUSTOM_START + 170,
5147   EL_CUSTOM_START + 171,
5148
5149   EL_CUSTOM_START + 172,
5150   EL_CUSTOM_START + 173,
5151   EL_CUSTOM_START + 174,
5152   EL_CUSTOM_START + 175,
5153
5154   EL_CUSTOM_START + 176,
5155   EL_CUSTOM_START + 177,
5156   EL_CUSTOM_START + 178,
5157   EL_CUSTOM_START + 179,
5158
5159   EL_CUSTOM_START + 180,
5160   EL_CUSTOM_START + 181,
5161   EL_CUSTOM_START + 182,
5162   EL_CUSTOM_START + 183,
5163
5164   EL_CUSTOM_START + 184,
5165   EL_CUSTOM_START + 185,
5166   EL_CUSTOM_START + 186,
5167   EL_CUSTOM_START + 187,
5168
5169   EL_CUSTOM_START + 188,
5170   EL_CUSTOM_START + 189,
5171   EL_CUSTOM_START + 190,
5172   EL_CUSTOM_START + 191,
5173
5174   EL_CUSTOM_START + 192,
5175   EL_CUSTOM_START + 193,
5176   EL_CUSTOM_START + 194,
5177   EL_CUSTOM_START + 195,
5178
5179   EL_CUSTOM_START + 196,
5180   EL_CUSTOM_START + 197,
5181   EL_CUSTOM_START + 198,
5182   EL_CUSTOM_START + 199,
5183
5184   EL_CUSTOM_START + 200,
5185   EL_CUSTOM_START + 201,
5186   EL_CUSTOM_START + 202,
5187   EL_CUSTOM_START + 203,
5188
5189   EL_CUSTOM_START + 204,
5190   EL_CUSTOM_START + 205,
5191   EL_CUSTOM_START + 206,
5192   EL_CUSTOM_START + 207,
5193
5194   EL_CUSTOM_START + 208,
5195   EL_CUSTOM_START + 209,
5196   EL_CUSTOM_START + 210,
5197   EL_CUSTOM_START + 211,
5198
5199   EL_CUSTOM_START + 212,
5200   EL_CUSTOM_START + 213,
5201   EL_CUSTOM_START + 214,
5202   EL_CUSTOM_START + 215,
5203
5204   EL_CUSTOM_START + 216,
5205   EL_CUSTOM_START + 217,
5206   EL_CUSTOM_START + 218,
5207   EL_CUSTOM_START + 219,
5208
5209   EL_CUSTOM_START + 220,
5210   EL_CUSTOM_START + 221,
5211   EL_CUSTOM_START + 222,
5212   EL_CUSTOM_START + 223,
5213
5214   EL_CUSTOM_START + 224,
5215   EL_CUSTOM_START + 225,
5216   EL_CUSTOM_START + 226,
5217   EL_CUSTOM_START + 227,
5218
5219   EL_CUSTOM_START + 228,
5220   EL_CUSTOM_START + 229,
5221   EL_CUSTOM_START + 230,
5222   EL_CUSTOM_START + 231,
5223
5224   EL_CUSTOM_START + 232,
5225   EL_CUSTOM_START + 233,
5226   EL_CUSTOM_START + 234,
5227   EL_CUSTOM_START + 235,
5228
5229   EL_CUSTOM_START + 236,
5230   EL_CUSTOM_START + 237,
5231   EL_CUSTOM_START + 238,
5232   EL_CUSTOM_START + 239,
5233
5234   EL_CUSTOM_START + 240,
5235   EL_CUSTOM_START + 241,
5236   EL_CUSTOM_START + 242,
5237   EL_CUSTOM_START + 243,
5238
5239   EL_CUSTOM_START + 244,
5240   EL_CUSTOM_START + 245,
5241   EL_CUSTOM_START + 246,
5242   EL_CUSTOM_START + 247,
5243
5244   EL_CUSTOM_START + 248,
5245   EL_CUSTOM_START + 249,
5246   EL_CUSTOM_START + 250,
5247   EL_CUSTOM_START + 251,
5248
5249   EL_CUSTOM_START + 252,
5250   EL_CUSTOM_START + 253,
5251   EL_CUSTOM_START + 254,
5252   EL_CUSTOM_START + 255
5253 };
5254 static int *editor_hl_custom_ptr = editor_hl_custom;
5255 static int *editor_el_custom_ptr = editor_el_custom;
5256 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
5257 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
5258
5259 static int editor_hl_group[] =
5260 {
5261   EL_INTERNAL_CASCADE_GE_ACTIVE,
5262   EL_CHAR('G'),
5263   EL_CHAR('E'),
5264   EL_EMPTY,
5265 };
5266
5267 static int editor_el_group[] =
5268 {
5269   EL_GROUP_START + 0,
5270   EL_GROUP_START + 1,
5271   EL_GROUP_START + 2,
5272   EL_GROUP_START + 3,
5273
5274   EL_GROUP_START + 4,
5275   EL_GROUP_START + 5,
5276   EL_GROUP_START + 6,
5277   EL_GROUP_START + 7,
5278
5279   EL_GROUP_START + 8,
5280   EL_GROUP_START + 9,
5281   EL_GROUP_START + 10,
5282   EL_GROUP_START + 11,
5283
5284   EL_GROUP_START + 12,
5285   EL_GROUP_START + 13,
5286   EL_GROUP_START + 14,
5287   EL_GROUP_START + 15,
5288
5289   EL_GROUP_START + 16,
5290   EL_GROUP_START + 17,
5291   EL_GROUP_START + 18,
5292   EL_GROUP_START + 19,
5293
5294   EL_GROUP_START + 20,
5295   EL_GROUP_START + 21,
5296   EL_GROUP_START + 22,
5297   EL_GROUP_START + 23,
5298
5299   EL_GROUP_START + 24,
5300   EL_GROUP_START + 25,
5301   EL_GROUP_START + 26,
5302   EL_GROUP_START + 27,
5303
5304   EL_GROUP_START + 28,
5305   EL_GROUP_START + 29,
5306   EL_GROUP_START + 30,
5307   EL_GROUP_START + 31
5308 };
5309 static int *editor_hl_group_ptr = editor_hl_group;
5310 static int *editor_el_group_ptr = editor_el_group;
5311 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
5312 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
5313
5314 static int editor_hl_empty_space[] =
5315 {
5316   EL_INTERNAL_CASCADE_ES_ACTIVE,
5317   EL_CHAR('E'),
5318   EL_CHAR('S'),
5319   EL_EMPTY,
5320 };
5321
5322 static int editor_el_empty_space[] =
5323 {
5324   EL_EMPTY_SPACE_1,
5325   EL_EMPTY_SPACE_2,
5326   EL_EMPTY_SPACE_3,
5327   EL_EMPTY_SPACE_4,
5328
5329   EL_EMPTY_SPACE_5,
5330   EL_EMPTY_SPACE_6,
5331   EL_EMPTY_SPACE_7,
5332   EL_EMPTY_SPACE_8,
5333
5334   EL_EMPTY_SPACE_9,
5335   EL_EMPTY_SPACE_10,
5336   EL_EMPTY_SPACE_11,
5337   EL_EMPTY_SPACE_12,
5338
5339   EL_EMPTY_SPACE_13,
5340   EL_EMPTY_SPACE_14,
5341   EL_EMPTY_SPACE_15,
5342   EL_EMPTY_SPACE_16
5343 };
5344 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
5345 static int *editor_el_empty_space_ptr = editor_el_empty_space;
5346 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
5347 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
5348
5349 static int editor_hl_reference[] =
5350 {
5351   EL_INTERNAL_CASCADE_REF_ACTIVE,
5352   EL_CHAR('R'),
5353   EL_CHAR('E'),
5354   EL_CHAR('F')
5355 };
5356
5357 static int editor_el_reference[] =
5358 {
5359   EL_TRIGGER_PLAYER,
5360   EL_TRIGGER_ELEMENT,
5361   EL_TRIGGER_CE_VALUE,
5362   EL_TRIGGER_CE_SCORE,
5363
5364   EL_SELF,
5365   EL_ANY_ELEMENT,
5366   EL_CURRENT_CE_VALUE,
5367   EL_CURRENT_CE_SCORE,
5368
5369   EL_PREV_CE_8,
5370   EL_PREV_CE_7,
5371   EL_PREV_CE_6,
5372   EL_PREV_CE_5,
5373
5374   EL_PREV_CE_4,
5375   EL_PREV_CE_3,
5376   EL_PREV_CE_2,
5377   EL_PREV_CE_1,
5378
5379   EL_NEXT_CE_1,
5380   EL_NEXT_CE_2,
5381   EL_NEXT_CE_3,
5382   EL_NEXT_CE_4,
5383
5384   EL_NEXT_CE_5,
5385   EL_NEXT_CE_6,
5386   EL_NEXT_CE_7,
5387   EL_NEXT_CE_8,
5388 };
5389 static int *editor_hl_reference_ptr = editor_hl_reference;
5390 static int *editor_el_reference_ptr = editor_el_reference;
5391 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
5392 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
5393
5394 static int editor_hl_user_defined[] =
5395 {
5396   EL_INTERNAL_CASCADE_USER_ACTIVE,
5397   EL_CHAR('M'),
5398   EL_CHAR('Y'),
5399   EL_EMPTY,
5400 };
5401
5402 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
5403 static int *editor_el_user_defined_ptr = NULL;
5404 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
5405 static int num_editor_el_user_defined = 0;
5406
5407 static int editor_hl_dynamic[] =
5408 {
5409   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
5410   EL_CHAR('U'),
5411   EL_CHAR('S'),
5412   EL_CHAR('E'),
5413 };
5414
5415 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
5416 static int *editor_el_dynamic_ptr = NULL;
5417 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
5418 static int num_editor_el_dynamic = 0;
5419
5420 static int editor_hl_empty[] = { EL_EMPTY };
5421 static int *editor_el_empty = NULL;     // dynamically allocated
5422
5423 static int *editor_hl_empty_ptr = editor_hl_empty;
5424 static int *editor_el_empty_ptr = NULL;
5425 static int num_editor_hl_empty = 0;
5426 static int num_editor_el_empty = 0;     // dynamically determined, if needed
5427
5428 static boolean use_el_empty = FALSE;
5429
5430 static int *editor_elements = NULL;     // dynamically allocated
5431 static int num_editor_elements = 0;     // dynamically determined
5432
5433 static boolean setup_editor_cascade_never = FALSE;
5434
5435 static boolean setup_editor_el_players                  = TRUE;
5436 static boolean setup_editor_el_boulderdash              = TRUE;
5437 static boolean setup_editor_el_emerald_mine             = TRUE;
5438 static boolean setup_editor_el_emerald_mine_club        = TRUE;
5439 static boolean setup_editor_el_more                     = TRUE;
5440 static boolean setup_editor_el_sokoban                  = TRUE;
5441 static boolean setup_editor_el_supaplex                 = TRUE;
5442 static boolean setup_editor_el_diamond_caves            = TRUE;
5443 static boolean setup_editor_el_dx_boulderdash           = TRUE;
5444 static boolean setup_editor_el_mirror_magic             = TRUE;
5445 static boolean setup_editor_el_deflektor                = TRUE;
5446 static boolean setup_editor_el_chars                    = TRUE;
5447 static boolean setup_editor_el_steel_chars              = TRUE;
5448 static boolean setup_editor_el_custom                   = TRUE;
5449 static boolean setup_editor_el_user_defined             = TRUE;
5450 static boolean setup_editor_el_dynamic                  = TRUE;
5451
5452 static int editor_hl_unused[] = { EL_EMPTY };
5453 static int *editor_hl_unused_ptr = editor_hl_unused;
5454 static int num_editor_hl_unused = 0;
5455
5456 static struct
5457 {
5458   boolean *setup_value;
5459   boolean *setup_cascade_value;
5460
5461   int **headline_list;
5462   int *headline_list_size;
5463
5464   int **element_list;
5465   int *element_list_size;
5466
5467   boolean last_setup_value;
5468 }
5469 editor_elements_info[] =
5470 {
5471   {
5472     &setup_editor_el_players,
5473     &setup_editor_cascade_never,
5474     &editor_hl_unused_ptr,              &num_editor_hl_unused,
5475     &editor_el_players_ptr,             &num_editor_el_players
5476   },
5477   {
5478     &setup_editor_el_boulderdash,
5479     &setup.editor_cascade.el_bd,
5480     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
5481     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
5482   },
5483   {
5484     &setup_editor_el_emerald_mine,
5485     &setup.editor_cascade.el_em,
5486     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
5487     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
5488   },
5489   {
5490     &setup_editor_el_emerald_mine_club,
5491     &setup.editor_cascade.el_emc,
5492     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
5493     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
5494   },
5495   {
5496     &setup_editor_el_more,
5497     &setup.editor_cascade.el_rnd,
5498     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
5499     &editor_el_rnd_ptr,                 &num_editor_el_rnd
5500   },
5501   {
5502     &setup_editor_el_sokoban,
5503     &setup.editor_cascade.el_sb,
5504     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
5505     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
5506   },
5507   {
5508     &setup_editor_el_supaplex,
5509     &setup.editor_cascade.el_sp,
5510     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
5511     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
5512   },
5513   {
5514     &setup_editor_el_diamond_caves,
5515     &setup.editor_cascade.el_dc,
5516     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
5517     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
5518   },
5519   {
5520     &setup_editor_el_dx_boulderdash,
5521     &setup.editor_cascade.el_dx,
5522     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
5523     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
5524   },
5525   {
5526     &setup_editor_el_mirror_magic,
5527     &setup.editor_cascade.el_mm,
5528     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
5529     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
5530   },
5531   {
5532     &setup_editor_el_deflektor,
5533     &setup.editor_cascade.el_df,
5534     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
5535     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
5536   },
5537   {
5538     &setup_editor_el_chars,
5539     &setup.editor_cascade.el_chars,
5540     &editor_hl_chars_ptr,               &num_editor_hl_chars,
5541     &editor_el_chars_ptr,               &num_editor_el_chars
5542   },
5543   {
5544     &setup_editor_el_steel_chars,
5545     &setup.editor_cascade.el_steel_chars,
5546     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
5547     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
5548   },
5549   {
5550     &setup_editor_el_custom,
5551     &setup.editor_cascade.el_ce,
5552     &editor_hl_custom_ptr,              &num_editor_hl_custom,
5553     &editor_el_custom_ptr,              &num_editor_el_custom
5554   },
5555   {
5556     &setup_editor_el_custom,
5557     &setup.editor_cascade.el_ge,
5558     &editor_hl_group_ptr,               &num_editor_hl_group,
5559     &editor_el_group_ptr,               &num_editor_el_group
5560   },
5561   {
5562     &setup_editor_el_custom,
5563     &setup.editor_cascade.el_es,
5564     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
5565     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
5566   },
5567   {
5568     &setup_editor_el_custom,
5569     &setup.editor_cascade.el_ref,
5570     &editor_hl_reference_ptr,           &num_editor_hl_reference,
5571     &editor_el_reference_ptr,           &num_editor_el_reference
5572   },
5573   {
5574     &setup_editor_el_user_defined,
5575     &setup.editor_cascade.el_user,
5576     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
5577     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
5578   },
5579   {
5580     &setup_editor_el_dynamic,
5581     &setup.editor_cascade.el_dynamic,
5582     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
5583     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
5584   },
5585   {
5586     &use_el_empty,
5587     &use_el_empty,
5588     &editor_hl_empty_ptr,               &num_editor_hl_empty,
5589     &editor_el_empty_ptr,               &num_editor_el_empty,
5590   },
5591   {
5592     NULL,
5593     NULL,
5594     NULL,                               NULL,
5595     NULL,                               NULL
5596   }
5597 };
5598
5599 static struct XY xy_directions[] =
5600 {
5601   { -1,  0 },
5602   { +1,  0 },
5603   {  0, -1 },
5604   {  0, +1 }
5605 };
5606
5607
5608 // ----------------------------------------------------------------------------
5609 // functions
5610 // ----------------------------------------------------------------------------
5611
5612 static int getMaxInfoTextLength(void)
5613 {
5614   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
5615 }
5616
5617 static int getTextWidthForGadget(char *text)
5618 {
5619   if (text == NULL)
5620     return 0;
5621
5622   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
5623 }
5624
5625 static int getTextWidthForDrawingArea(char *text)
5626 {
5627   if (text == NULL)
5628     return 0;
5629
5630   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_TEXT_DISTANCE);
5631 }
5632
5633 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
5634 {
5635   return (gi->x + gi->width + getTextWidthForGadget(text));
5636 }
5637
5638 static char *getElementInfoText(int element)
5639 {
5640   char *info_text = NULL;
5641
5642   if (element < MAX_NUM_ELEMENTS)
5643   {
5644     if (strlen(element_info[element].description) > 0)
5645       info_text = element_info[element].description;
5646     else if (element_info[element].custom_description != NULL)
5647       info_text = element_info[element].custom_description;
5648     else if (element_info[element].editor_description != NULL)
5649       info_text = element_info[element].editor_description;
5650   }
5651
5652   if (info_text == NULL)
5653     info_text = INFOTEXT_UNKNOWN_ELEMENT;
5654
5655   return info_text;
5656 }
5657
5658 static char *getElementDescriptionFilenameExt(char *basename)
5659 {
5660   char *elements_subdir = ELEMENTS_DIRECTORY;
5661   static char *elements_subdir2 = NULL;
5662   static char *filename = NULL;
5663
5664   if (elements_subdir2 == NULL)
5665     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
5666
5667   checked_free(filename);
5668
5669   // 1st try: look for element description in current level set directory
5670   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
5671   if (fileExists(filename))
5672     return filename;
5673
5674   free(filename);
5675
5676   // 2nd try: look for element description in the game's base directory
5677   filename = getPath3(options.docs_directory, elements_subdir, basename);
5678   if (fileExists(filename))
5679     return filename;
5680
5681   return NULL;
5682 }
5683
5684 static char *getElementDescriptionFilename(int element)
5685 {
5686   char basename[MAX_FILENAME_LEN];
5687   char *filename;
5688
5689   // 1st try: look for element description file for exactly this element
5690   sprintf(basename, "%s.txt", element_info[element].token_name);
5691   filename = getElementDescriptionFilenameExt(basename);
5692   if (filename != NULL)
5693     return filename;
5694
5695   // 2nd try: look for element description file for this element's class
5696   sprintf(basename, "%s.txt", element_info[element].class_name);
5697   filename = getElementDescriptionFilenameExt(basename);
5698   if (filename != NULL)
5699     return filename;
5700
5701   // 3rd try: look for generic fallback text file for any element
5702   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
5703   if (filename != NULL)
5704     return filename;
5705
5706   return NULL;
5707 }
5708
5709 static boolean suppressBorderElement(void)
5710 {
5711   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
5712           lev_fieldx <= MAX_ED_FIELDX &&
5713           lev_fieldy <= MAX_ED_FIELDY);
5714 }
5715
5716 static void InitDynamicEditorElementList(int **elements, int *num_elements)
5717 {
5718   boolean element_found[NUM_FILE_ELEMENTS];
5719   int i, x, y;
5720
5721   // initialize list of used elements to "not used"
5722   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5723     element_found[i] = FALSE;
5724
5725   // find all elements used in current level
5726   for (y = 0; y < lev_fieldy; y++)
5727     for (x = 0; x < lev_fieldx; x++)
5728       if (Tile[x][y] < NUM_FILE_ELEMENTS)       // should always be true
5729         element_found[Tile[x][y]] = TRUE;
5730
5731   *num_elements = 0;
5732
5733   // count number of elements used in current level
5734   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5735     if (element_found[i])
5736       (*num_elements)++;
5737
5738   // add space for up to 3 more elements for padding that may be needed
5739   *num_elements += 3;
5740
5741   // free memory for old list of elements, if needed
5742   checked_free(*elements);
5743
5744   // allocate memory for new list of elements
5745   *elements = checked_malloc(*num_elements * sizeof(int));
5746
5747   *num_elements = 0;
5748
5749   // add all elements used in current level (non-custom/group elements)
5750   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5751     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) || IS_GROUP_ELEMENT(i)))
5752       (*elements)[(*num_elements)++] = i;
5753
5754   // add all elements used in current level (custom/group elements)
5755   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5756     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) || IS_GROUP_ELEMENT(i)))
5757       (*elements)[(*num_elements)++] = i;
5758
5759   while (*num_elements % 4)     // pad with empty elements, if needed
5760     (*elements)[(*num_elements)++] = EL_EMPTY;
5761 }
5762
5763 static void ReinitializeElementList_EnableSections(void)
5764 {
5765   // default: enable all element sections
5766
5767   setup_editor_el_players               = TRUE;
5768   setup_editor_el_boulderdash           = TRUE;
5769   setup_editor_el_emerald_mine          = TRUE;
5770   setup_editor_el_emerald_mine_club     = TRUE;
5771   setup_editor_el_more                  = TRUE;
5772   setup_editor_el_sokoban               = TRUE;
5773   setup_editor_el_supaplex              = TRUE;
5774   setup_editor_el_diamond_caves         = TRUE;
5775   setup_editor_el_dx_boulderdash        = TRUE;
5776   setup_editor_el_mirror_magic          = TRUE;
5777   setup_editor_el_deflektor             = TRUE;
5778   setup_editor_el_chars                 = TRUE;
5779   setup_editor_el_steel_chars           = TRUE;
5780
5781   setup_editor_el_custom                = TRUE;
5782   setup_editor_el_user_defined          = TRUE;
5783   setup_editor_el_dynamic               = TRUE;
5784
5785   // now disable all element sections not to be displayed
5786
5787   if (!setup.editor.el_classic)
5788   {
5789     setup_editor_el_players             = FALSE;
5790     setup_editor_el_boulderdash         = FALSE;
5791     setup_editor_el_emerald_mine        = FALSE;
5792     setup_editor_el_emerald_mine_club   = FALSE;
5793     setup_editor_el_more                = FALSE;
5794     setup_editor_el_sokoban             = FALSE;
5795     setup_editor_el_supaplex            = FALSE;
5796     setup_editor_el_diamond_caves       = FALSE;
5797     setup_editor_el_dx_boulderdash      = FALSE;
5798     setup_editor_el_mirror_magic        = FALSE;
5799     setup_editor_el_deflektor           = FALSE;
5800     setup_editor_el_chars               = FALSE;
5801     setup_editor_el_steel_chars         = FALSE;
5802   }
5803
5804   if (!setup.editor.el_custom)
5805   {
5806     setup_editor_el_custom              = FALSE;
5807   }
5808
5809   if (!setup.editor.el_user_defined)
5810   {
5811     setup_editor_el_user_defined        = FALSE;
5812   }
5813
5814   if (!setup.editor.el_dynamic)
5815   {
5816     setup_editor_el_dynamic             = FALSE;
5817   }
5818
5819   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
5820   {
5821     setup_editor_el_mirror_magic        = FALSE;
5822     setup_editor_el_deflektor           = FALSE;
5823   }
5824   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
5825   {
5826     setup_editor_el_boulderdash         = FALSE;
5827     setup_editor_el_more                = FALSE;
5828     setup_editor_el_sokoban             = FALSE;
5829     setup_editor_el_supaplex            = FALSE;
5830     setup_editor_el_diamond_caves       = FALSE;
5831     setup_editor_el_dx_boulderdash      = FALSE;
5832     setup_editor_el_mirror_magic        = FALSE;
5833     setup_editor_el_deflektor           = FALSE;
5834     setup_editor_el_steel_chars         = FALSE;
5835
5836     setup_editor_el_custom              = FALSE;
5837   }
5838   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
5839   {
5840     setup_editor_el_players             = FALSE;
5841     setup_editor_el_boulderdash         = FALSE;
5842     setup_editor_el_emerald_mine        = FALSE;
5843     setup_editor_el_emerald_mine_club   = FALSE;
5844     setup_editor_el_more                = FALSE;
5845     setup_editor_el_sokoban             = FALSE;
5846     setup_editor_el_diamond_caves       = FALSE;
5847     setup_editor_el_dx_boulderdash      = FALSE;
5848     setup_editor_el_mirror_magic        = FALSE;
5849     setup_editor_el_deflektor           = FALSE;
5850     setup_editor_el_chars               = FALSE;
5851     setup_editor_el_steel_chars         = FALSE;
5852
5853     setup_editor_el_custom              = FALSE;
5854   }
5855   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
5856   {
5857     setup_editor_el_players             = FALSE;
5858     setup_editor_el_boulderdash         = FALSE;
5859     setup_editor_el_emerald_mine        = FALSE;
5860     setup_editor_el_emerald_mine_club   = FALSE;
5861     setup_editor_el_more                = FALSE;
5862     setup_editor_el_sokoban             = FALSE;
5863     setup_editor_el_supaplex            = FALSE;
5864     setup_editor_el_diamond_caves       = FALSE;
5865     setup_editor_el_dx_boulderdash      = FALSE;
5866     setup_editor_el_steel_chars         = FALSE;
5867
5868     setup_editor_el_custom              = FALSE;
5869   }
5870 }
5871
5872 static void ReinitializeElementList(void)
5873 {
5874   static boolean initialization_needed = TRUE;
5875   int pos = 0;
5876   int i, j;
5877
5878   ReinitializeElementList_EnableSections();
5879
5880   if (initialization_needed)
5881   {
5882     LoadSetup_EditorCascade();          // load last editor cascade state
5883
5884     // initialize editor cascade element from saved cascade state
5885     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5886     {
5887       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
5888       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
5889
5890       if (IS_EDITOR_CASCADE(*cascade_element))
5891         *cascade_element =
5892           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
5893            EL_CASCADE_INACTIVE(*cascade_element));
5894     }
5895
5896     initialization_needed = FALSE;
5897   }
5898
5899   checked_free(editor_elements);
5900
5901   // reload optional user defined element list for each invocation of editor
5902   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
5903                                    &num_editor_el_user_defined);
5904
5905   // initialize dynamic level element list for each invocation of editor
5906   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
5907                                &num_editor_el_dynamic);
5908
5909   // initialize list of empty elements (used for padding, if needed)
5910   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
5911     editor_el_empty[i] = EL_EMPTY;
5912
5913   // do some sanity checks for each element from element list
5914   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5915   {
5916     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
5917     {
5918       int element = (*editor_elements_info[i].element_list)[j];
5919
5920       if (element >= NUM_FILE_ELEMENTS)
5921         Warn("editor element %d is runtime element", element);
5922
5923       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
5924         Warn("no element description text for element %d", element);
5925     }
5926   }
5927
5928   num_editor_elements = 0;
5929   use_el_empty = FALSE;
5930
5931   // determine size of element list
5932   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5933   {
5934     if (*editor_elements_info[i].setup_value)
5935     {
5936       boolean found_inactive_cascade = FALSE;
5937
5938       if (setup.editor.el_headlines)
5939       {
5940         // required for correct padding of palette headline buttons
5941         if (*editor_elements_info[i].headline_list_size > 0)
5942           num_editor_elements += ED_ELEMENTLIST_COLS;
5943
5944         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
5945         {
5946           int element = (*editor_elements_info[i].headline_list)[j];
5947
5948           if (IS_EDITOR_CASCADE_INACTIVE(element))
5949             found_inactive_cascade = TRUE;
5950         }
5951       }
5952
5953       if (found_inactive_cascade)
5954         continue;
5955
5956       // required for correct padding of palette element buttons
5957       int element_list_size = *editor_elements_info[i].element_list_size;
5958       int element_rows =
5959         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
5960       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
5961
5962       num_editor_elements += element_buttons;
5963     }
5964   }
5965
5966   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
5967   {
5968     // offer at least as many elements as element buttons exist
5969     use_el_empty = TRUE;
5970     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
5971
5972     num_editor_elements += num_editor_el_empty;
5973   }
5974   else
5975   {
5976     num_editor_el_empty = 0;
5977   }
5978
5979   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
5980
5981   // fill element list
5982   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5983   {
5984     boolean found_inactive_cascade = FALSE;
5985
5986     if (*editor_elements_info[i].setup_value)
5987     {
5988       if (setup.editor.el_headlines)
5989       {
5990         // required for correct padding of palette headline buttons
5991         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
5992                              ED_ELEMENTLIST_COLS : 0);
5993
5994         for (j = 0; j < headline_size; j++)
5995         {
5996           // use empty elements for padding of palette headline buttons
5997           int element = (j < *editor_elements_info[i].headline_list_size ?
5998                          (*editor_elements_info[i].headline_list)[j] :
5999                          editor_el_empty[0]);
6000
6001           editor_elements[pos++] = element;
6002
6003           if (IS_EDITOR_CASCADE_INACTIVE(element))
6004             found_inactive_cascade = TRUE;
6005         }
6006       }
6007
6008       if (found_inactive_cascade)
6009         continue;
6010
6011       // required for correct padding of palette element buttons
6012       int element_list_size = *editor_elements_info[i].element_list_size;
6013       int element_rows =
6014         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6015       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6016
6017       // copy all elements from element list
6018       for (j = 0; j < element_list_size; j++)
6019         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
6020
6021       // use empty elements for padding of palette element buttons
6022       for (j = 0; j < element_buttons - element_list_size; j++)
6023         editor_elements[pos++] = editor_el_empty[0];
6024     }
6025   }
6026
6027   // (this function is also called before editor gadgets are initialized!)
6028   AdjustElementListScrollbar();
6029 }
6030
6031 void PrintEditorElementList(void)
6032 {
6033   boolean *stop = &setup_editor_el_user_defined;
6034   int i, j;
6035
6036   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
6037   {
6038     int cascade_element = (*editor_elements_info[i].headline_list)[0];
6039
6040     if (IS_EDITOR_CASCADE(cascade_element))
6041     {
6042       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
6043       char *headline = element_info[cascade_element_show].editor_description;
6044
6045       PrintLineWithPrefix("# ", "-", 77);
6046       Print("# %s\n", headline);
6047       PrintLineWithPrefix("# ", "-", 77);
6048     }
6049
6050     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6051     {
6052       int element = (*editor_elements_info[i].headline_list)[j];
6053
6054       if (IS_EDITOR_CASCADE(element))
6055         element = EL_CHAR_MINUS;
6056
6057       Print("# %s\n", element_info[element].token_name);
6058     }
6059
6060     if (j > 0)
6061       Print("#\n");
6062
6063     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6064     {
6065       int element = (*editor_elements_info[i].element_list)[j];
6066
6067       Print("# %s\n", element_info[element].token_name);
6068     }
6069
6070     if (j > 0)
6071       Print("#\n");
6072   }
6073 }
6074
6075 static void ReinitializeElementListButtons(void)
6076 {
6077   static boolean last_setup_value_headlines = FALSE;
6078   static boolean initialization_needed = TRUE;
6079   int i;
6080
6081   if (!initialization_needed)   // check if editor element setup has changed
6082   {
6083     if (last_setup_value_headlines != setup.editor.el_headlines)
6084       initialization_needed = TRUE;
6085
6086     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6087       if (editor_elements_info[i].last_setup_value !=
6088           *editor_elements_info[i].setup_value)
6089         initialization_needed = TRUE;
6090   }
6091
6092   if (!initialization_needed)
6093     return;
6094
6095   FreeLevelEditorGadgets();
6096   CreateLevelEditorGadgets();
6097
6098   // store current setup values for next invocation of this function
6099   last_setup_value_headlines = setup.editor.el_headlines;
6100   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6101     editor_elements_info[i].last_setup_value =
6102       *editor_elements_info[i].setup_value;
6103
6104   initialization_needed = FALSE;
6105 }
6106
6107 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
6108                               boolean input)
6109 {
6110   int border_graphic =
6111     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
6112   struct GraphicInfo *g = &graphic_info[border_graphic];
6113   Bitmap *src_bitmap = g->bitmap;
6114   int src_x = g->src_x;
6115   int src_y = g->src_y;
6116   int border_size = g->border_size;
6117   int border_xpos = g->width  - border_size;
6118   int border_ypos = g->height - border_size;
6119   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6120   int i;
6121
6122   BlitBitmap(src_bitmap, drawto, src_x, src_y,
6123              border_size, border_size,
6124              dest_x - border_size, dest_y - border_size);
6125   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
6126              border_size, border_size,
6127              dest_x + width, dest_y - border_size);
6128   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
6129              border_size, border_size,
6130              dest_x - border_size, dest_y + height);
6131   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
6132              border_size, border_size,
6133              dest_x + width, dest_y + height);
6134
6135   for (i = 0; i < width / tilesize; i++)
6136   {
6137     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
6138                tilesize, border_size,
6139                dest_x + i * tilesize, dest_y - border_size);
6140     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
6141                tilesize, border_size,
6142                dest_x + i * tilesize, dest_y + height);
6143   }
6144
6145   for (i = 0; i < height / tilesize; i++)
6146   {
6147     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
6148                border_size, tilesize,
6149                dest_x - border_size, dest_y + i * tilesize);
6150     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
6151                border_size, tilesize,
6152                dest_x + width, dest_y + i * tilesize);
6153   }
6154
6155   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
6156 }
6157
6158 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
6159 {
6160   int xsize_tile = MAX(ed_tilesize, xsize);
6161   int ysize_tile = MAX(ed_tilesize, ysize);
6162   int xsize_full = xsize + 1;
6163   int ysize_full = ysize + 1;
6164   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
6165   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
6166   Pixel line_color = getTabulatorBarColor();
6167
6168   if (line_color == BLACK_PIXEL)                // black => transparent
6169     return;
6170
6171   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
6172   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
6173   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
6174 }
6175
6176 static void DrawEditorLevelBorderLinesIfNeeded(void)
6177 {
6178   int xsize = lev_fieldx * ed_tilesize;
6179   int ysize = lev_fieldy * ed_tilesize;
6180   int line_size = getTabulatorBarHeight();
6181
6182   if (!suppressBorderElement())
6183     return;
6184
6185   // draw little border line around editable level playfield
6186
6187   if (xsize < SXSIZE)
6188     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
6189
6190   if (ysize < SYSIZE)
6191     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
6192
6193   if (xsize < SXSIZE && ysize < SYSIZE)
6194     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
6195 }
6196
6197 static void DrawEditorElement(int x, int y, int element)
6198 {
6199   DrawSizedElement(x, y, element, ed_tilesize);
6200 }
6201
6202 static void DrawEditorElementThruMask(int x, int y, int element)
6203 {
6204   DrawSizedElementThruMask(x, y, element, ed_tilesize);
6205 }
6206
6207 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
6208 {
6209   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
6210 }
6211
6212 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
6213 {
6214   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
6215   DrawEditorLevelBorderLinesIfNeeded();
6216 }
6217
6218 static void DrawDrawingArea(int id)
6219 {
6220   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
6221   int x, y;
6222
6223   int *value = drawingarea_info[id].value;
6224   int area_xsize = drawingarea_info[id].area_xsize;
6225   int area_ysize = drawingarea_info[id].area_ysize;
6226   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6227
6228   for (x = 0; x < area_xsize; x++)
6229     for (y = 0; y < area_ysize; y++)
6230       DrawSizedGraphicExt(drawto,
6231                           gi->x + x * tilesize,
6232                           gi->y + y * tilesize,
6233                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
6234 }
6235
6236 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
6237 {
6238   int x, y;
6239   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
6240   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
6241
6242   BlitBitmap(drawto, drawto,
6243              SX + (dx == -1 ? ed_tilesize : 0),
6244              SY + (dy == -1 ? ed_tilesize : 0),
6245              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
6246              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
6247              SX + (dx == +1 ? ed_tilesize : 0),
6248              SY + (dy == +1 ? ed_tilesize : 0));
6249
6250   if (dx)
6251   {
6252     x = (dx == 1 ? 0 : ed_fieldx - 1);
6253     for (y = 0; y < ed_fieldy; y++)
6254       DrawEditorElementOrWall(x, y, from_x, from_y);
6255   }
6256   else if (dy)
6257   {
6258     y = (dy == 1 ? 0 : ed_fieldy - 1);
6259     for (x = 0; x < ed_fieldx; x++)
6260       DrawEditorElementOrWall(x, y, from_x, from_y);
6261   }
6262
6263   redraw_mask |= REDRAW_FIELD;
6264   BackToFront();
6265 }
6266
6267 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
6268                                    int *x, int *y)
6269 {
6270   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
6271 }
6272
6273 static void CreateControlButtons(void)
6274 {
6275   struct GadgetInfo *gi;
6276   int i;
6277
6278   // create toolbox buttons
6279   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
6280   {
6281     int id = controlbutton_info[i].gadget_id;
6282     int type = controlbutton_info[i].gadget_type;
6283     int graphic = controlbutton_info[i].graphic;
6284     struct XYTileSize *pos = controlbutton_info[i].pos;
6285     struct GraphicInfo *gd = &graphic_info[graphic];
6286     Bitmap *deco_bitmap = NULL;
6287     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
6288     int tile_size = 0, deco_shift = 0;
6289     boolean deco_masked = FALSE;
6290     int gd_x1 = gd->src_x;
6291     int gd_y1 = gd->src_y;
6292     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6293     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6294     int gd_x1a = gd->src_x + gd->active_xoffset;
6295     int gd_y1a = gd->src_y + gd->active_yoffset;
6296     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
6297     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
6298     int x = pos->x;
6299     int y = pos->y;
6300     unsigned int event_mask;
6301     int radio_button_nr = RADIO_NR_NONE;
6302     boolean checked = FALSE;
6303
6304     if (type == GD_TYPE_RADIO_BUTTON)
6305     {
6306       event_mask = GD_EVENT_PRESSED;
6307       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
6308
6309       if (id == drawing_function)
6310         checked = TRUE;
6311     }
6312     else
6313     {
6314       if (id == GADGET_ID_WRAP_LEFT ||
6315           id == GADGET_ID_WRAP_RIGHT ||
6316           id == GADGET_ID_WRAP_UP ||
6317           id == GADGET_ID_WRAP_DOWN)
6318         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6319       else
6320         event_mask = GD_EVENT_RELEASED;
6321     }
6322
6323     if (id == GADGET_ID_PROPERTIES ||
6324         id == GADGET_ID_PALETTE)
6325     {
6326       x += DX;
6327       y += DY;
6328     }
6329     else if (id == GADGET_ID_ELEMENT_LEFT ||
6330              id == GADGET_ID_ELEMENT_MIDDLE ||
6331              id == GADGET_ID_ELEMENT_RIGHT)
6332     {
6333       x += DX;
6334       y += DY;
6335
6336       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
6337                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
6338                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
6339
6340       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
6341                                    editor.button.element_left.tile_size :
6342                                    id == GADGET_ID_ELEMENT_MIDDLE ?
6343                                    editor.button.element_middle.tile_size :
6344                                    id == GADGET_ID_ELEMENT_RIGHT ?
6345                                    editor.button.element_right.tile_size : 0);
6346
6347       // make sure that decoration does not overlap gadget border
6348       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
6349
6350       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
6351
6352       deco_xpos = (gd->width  - tile_size) / 2;
6353       deco_ypos = (gd->height - tile_size) / 2;
6354       deco_shift = 1;
6355       deco_masked = gd->draw_masked;
6356     }
6357     else
6358     {
6359       x += EX;
6360       y += EY;
6361     }
6362
6363     gi = CreateGadget(GDI_CUSTOM_ID, id,
6364                       GDI_CUSTOM_TYPE_ID, i,
6365                       GDI_IMAGE_ID, graphic,
6366                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
6367                       GDI_X, x,
6368                       GDI_Y, y,
6369                       GDI_WIDTH, gd->width,
6370                       GDI_HEIGHT, gd->height,
6371                       GDI_TYPE, type,
6372                       GDI_STATE, GD_BUTTON_UNPRESSED,
6373                       GDI_RADIO_NR, radio_button_nr,
6374                       GDI_CHECKED, checked,
6375                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6376                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6377                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
6378                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
6379                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
6380                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
6381                       GDI_DECORATION_SIZE, tile_size, tile_size,
6382                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
6383                       GDI_DECORATION_MASKED, deco_masked,
6384                       GDI_EVENT_MASK, event_mask,
6385                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6386                       GDI_CALLBACK_ACTION, HandleControlButtons,
6387                       GDI_END);
6388
6389     if (gi == NULL)
6390       Fail("cannot create gadget");
6391
6392     level_editor_gadget[id] = gi;
6393   }
6394
6395   // these values are not constant, but can change at runtime
6396   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
6397   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
6398   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
6399   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
6400   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
6401   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
6402   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
6403   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
6404   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
6405   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
6406   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
6407   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
6408
6409   // create buttons for scrolling of drawing area and element list
6410   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
6411   {
6412     int id = scrollbutton_info[i].gadget_id;
6413     int graphic = scrollbutton_info[i].graphic;
6414     struct GraphicInfo *gd = &graphic_info[graphic];
6415     Bitmap *gd_bitmap = gd->bitmap;
6416     int gd_x1 = gd->src_x;
6417     int gd_y1 = gd->src_y;
6418     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6419     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6420     int width  = gd->width;
6421     int height = gd->height;
6422     int x = scrollbutton_pos[i].x;
6423     int y = scrollbutton_pos[i].y;
6424     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6425
6426     if (id == GADGET_ID_SCROLL_LIST_UP ||
6427         id == GADGET_ID_SCROLL_LIST_DOWN)
6428     {
6429       x += PX;
6430       y += PY;
6431     }
6432     else
6433     {
6434       x += SX;
6435       y += SY;
6436     }
6437
6438     gi = CreateGadget(GDI_CUSTOM_ID, id,
6439                       GDI_CUSTOM_TYPE_ID, i,
6440                       GDI_IMAGE_ID, graphic,
6441                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
6442                       GDI_X, x,
6443                       GDI_Y, y,
6444                       GDI_WIDTH, width,
6445                       GDI_HEIGHT, height,
6446                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6447                       GDI_STATE, GD_BUTTON_UNPRESSED,
6448                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
6449                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
6450                       GDI_EVENT_MASK, event_mask,
6451                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6452                       GDI_CALLBACK_ACTION, HandleControlButtons,
6453                       GDI_END);
6454
6455     if (gi == NULL)
6456       Fail("cannot create gadget");
6457
6458     level_editor_gadget[id] = gi;
6459   }
6460
6461   // create buttons for element list
6462   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6463   {
6464     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
6465     int graphic = IMG_EDITOR_PALETTE_BUTTON;
6466     struct GraphicInfo *gd = &graphic_info[graphic];
6467     Bitmap *gd_bitmap = gd->bitmap;
6468     Bitmap *deco_bitmap;
6469     int deco_x, deco_y, deco_xpos, deco_ypos;
6470     int gd_x1 = gd->src_x;
6471     int gd_y1 = gd->src_y;
6472     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6473     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6474     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
6475     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
6476     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
6477     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
6478     int element = editor_elements[i];
6479     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
6480     unsigned int event_mask = GD_EVENT_RELEASED;
6481
6482     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
6483
6484     deco_xpos = (gd->width  - tile_size) / 2;
6485     deco_ypos = (gd->height - tile_size) / 2;
6486
6487     gi = CreateGadget(GDI_CUSTOM_ID, id,
6488                       GDI_CUSTOM_TYPE_ID, i,
6489                       GDI_IMAGE_ID, graphic,
6490                       GDI_INFO_TEXT, getElementInfoText(element),
6491                       GDI_X, x,
6492                       GDI_Y, y,
6493                       GDI_WIDTH, gd->width,
6494                       GDI_HEIGHT, gd->height,
6495                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6496                       GDI_STATE, GD_BUTTON_UNPRESSED,
6497                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
6498                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
6499                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
6500                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
6501                       GDI_DECORATION_SIZE, tile_size, tile_size,
6502                       GDI_DECORATION_SHIFTING, 1, 1,
6503                       GDI_EVENT_MASK, event_mask,
6504                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6505                       GDI_CALLBACK_ACTION, HandleControlButtons,
6506                       GDI_END);
6507
6508     if (gi == NULL)
6509       Fail("cannot create gadget");
6510
6511     level_editor_gadget[id] = gi;
6512   }
6513 }
6514
6515 static void CreateCounterButtons(void)
6516 {
6517   int max_infotext_len = getMaxInfoTextLength();
6518   int i;
6519
6520   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
6521   {
6522     int j;
6523     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
6524     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
6525
6526     // determine horizontal position to the right of specified gadget
6527     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6528       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
6529            ED_GADGET_TEXT_DISTANCE);
6530
6531     // determine horizontal offset for leading text
6532     if (counterbutton_info[i].text_left != NULL)
6533       x += getTextWidthForGadget(counterbutton_info[i].text_left);
6534
6535     for (j = 0; j < 2; j++)
6536     {
6537       struct GadgetInfo *gi;
6538       int id = (j == 0 ?
6539                 counterbutton_info[i].gadget_id_down :
6540                 counterbutton_info[i].gadget_id_up);
6541       int graphic;
6542       struct GraphicInfo *gd;
6543       int gd_x1, gd_x2, gd_y1, gd_y2;
6544       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6545       char infotext[max_infotext_len + 1];
6546
6547       if (i == ED_COUNTER_ID_SELECT_LEVEL)
6548       {
6549         graphic = (j == 0 ?
6550                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
6551                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
6552
6553         event_mask |= GD_EVENT_RELEASED;
6554
6555         if (j == 0)
6556         {
6557           x = DX + editor.button.prev_level.x;
6558           y = DY + editor.button.prev_level.y;
6559         }
6560         else
6561         {
6562           x = DX + editor.button.next_level.x;
6563           y = DY + editor.button.next_level.y;
6564         }
6565       }
6566       else
6567       {
6568         graphic = (j == 0 ?
6569                    IMG_EDITOR_COUNTER_DOWN :
6570                    IMG_EDITOR_COUNTER_UP);
6571       }
6572
6573       gd = &graphic_info[graphic];
6574
6575       gd_x1 = gd->src_x;
6576       gd_y1 = gd->src_y;
6577       gd_x2 = gd->src_x + gd->pressed_xoffset;
6578       gd_y2 = gd->src_y + gd->pressed_yoffset;
6579
6580       sprintf(infotext, "%s counter value by 1, 5 or 10",
6581               (j == 0 ? "decrease" : "increase"));
6582
6583       gi = CreateGadget(GDI_CUSTOM_ID, id,
6584                         GDI_CUSTOM_TYPE_ID, i,
6585                         GDI_IMAGE_ID, graphic,
6586                         GDI_INFO_TEXT, infotext,
6587                         GDI_X, x,
6588                         GDI_Y, y,
6589                         GDI_WIDTH, gd->width,
6590                         GDI_HEIGHT, gd->height,
6591                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6592                         GDI_STATE, GD_BUTTON_UNPRESSED,
6593                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6594                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6595                         GDI_EVENT_MASK, event_mask,
6596                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6597                         GDI_CALLBACK_ACTION, HandleCounterButtons,
6598                         GDI_END);
6599
6600       if (gi == NULL)
6601         Fail("cannot create gadget");
6602
6603       level_editor_gadget[id] = gi;
6604       right_gadget_border[id] =
6605         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
6606
6607       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
6608
6609       if (j == 0)
6610       {
6611         int font_type = FONT_INPUT_1;
6612         int font_type_active = FONT_INPUT_1_ACTIVE;
6613
6614         id = counterbutton_info[i].gadget_id_text;
6615
6616         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6617
6618         if (i == ED_COUNTER_ID_SELECT_LEVEL)
6619         {
6620           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
6621
6622           font_type = FONT_LEVEL_NUMBER;
6623           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
6624
6625           x = DX + editor.input.level_number.x;
6626           y = DY + editor.input.level_number.y;
6627         }
6628         else
6629         {
6630           graphic = IMG_EDITOR_COUNTER_INPUT;
6631         }
6632
6633         gd = &graphic_info[graphic];
6634
6635         gd_x1 = gd->src_x;
6636         gd_y1 = gd->src_y;
6637         gd_x2 = gd->src_x + gd->active_xoffset;
6638         gd_y2 = gd->src_y + gd->active_yoffset;
6639
6640         gi = CreateGadget(GDI_CUSTOM_ID, id,
6641                           GDI_CUSTOM_TYPE_ID, i,
6642                           GDI_IMAGE_ID, graphic,
6643                           GDI_INFO_TEXT, "enter counter value",
6644                           GDI_X, x,
6645                           GDI_Y, y,
6646                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
6647                           GDI_NUMBER_VALUE, 0,
6648                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
6649                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
6650                           GDI_TEXT_SIZE, 3,     // minimal counter text size
6651                           GDI_TEXT_FONT, font_type,
6652                           GDI_TEXT_FONT_ACTIVE, font_type_active,
6653                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6654                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6655                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6656                           GDI_DESIGN_WIDTH, gd->width,
6657                           GDI_EVENT_MASK, event_mask,
6658                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6659                           GDI_CALLBACK_ACTION, HandleCounterButtons,
6660                           GDI_END);
6661
6662         if (gi == NULL)
6663           Fail("cannot create gadget");
6664
6665         level_editor_gadget[id] = gi;
6666         right_gadget_border[id] =
6667           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
6668
6669         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
6670       }
6671     }
6672   }
6673 }
6674
6675 static void CreateDrawingAreas(void)
6676 {
6677   int i;
6678
6679   // these values are not constant, but can change at runtime
6680   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
6681   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
6682
6683   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
6684   {
6685     struct GadgetInfo *gi;
6686     int id = drawingarea_info[i].gadget_id;
6687     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
6688     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
6689     int area_xsize = drawingarea_info[i].area_xsize;
6690     int area_ysize = drawingarea_info[i].area_ysize;
6691     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
6692                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
6693     unsigned int event_mask =
6694       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
6695       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
6696
6697     // determine horizontal position to the right of specified gadget
6698     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
6699       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
6700            ED_DRAWINGAREA_TEXT_DISTANCE);
6701
6702     // determine horizontal offset for leading text
6703     if (drawingarea_info[i].text_left != NULL)
6704       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
6705
6706     gi = CreateGadget(GDI_CUSTOM_ID, id,
6707                       GDI_CUSTOM_TYPE_ID, i,
6708                       GDI_X, x,
6709                       GDI_Y, y,
6710                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
6711                       GDI_AREA_SIZE, area_xsize, area_ysize,
6712                       GDI_ITEM_SIZE, item_size, item_size,
6713                       GDI_EVENT_MASK, event_mask,
6714                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
6715                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
6716                       GDI_END);
6717
6718     if (gi == NULL)
6719       Fail("cannot create gadget");
6720
6721     level_editor_gadget[id] = gi;
6722     right_gadget_border[id] =
6723       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
6724   }
6725 }
6726
6727 static void CreateTextInputGadgets(void)
6728 {
6729   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
6730   int max_infotext_len = getMaxInfoTextLength();
6731   int i;
6732
6733   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
6734   {
6735     int gd_x1 = gd->src_x;
6736     int gd_y1 = gd->src_y;
6737     int gd_x2 = gd->src_x + gd->active_xoffset;
6738     int gd_y2 = gd->src_y + gd->active_yoffset;
6739     struct GadgetInfo *gi;
6740     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6741     char infotext[MAX_OUTPUT_LINESIZE + 1];
6742     int id = textinput_info[i].gadget_id;
6743     int x, y;
6744
6745     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
6746     {
6747       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
6748       int border_size = gd->border_size;
6749       int font_nr = FONT_INPUT_1;
6750       int font_height = getFontHeight(font_nr);
6751       int xoffset = element_border + TILEX + element_border + 3 * border_size;
6752       int yoffset = element_border + (TILEY - font_height) / 2;
6753
6754       x = (editor.settings.element_name.x != -1 ?
6755            editor.settings.element_name.x :
6756            editor.settings.element_graphic.x + xoffset) - border_size;
6757       y = (editor.settings.element_name.y != -1 ?
6758            editor.settings.element_name.y :
6759            editor.settings.element_graphic.y + yoffset) - border_size;
6760     }
6761     else
6762     {
6763       x = ED_SETTINGS_X(textinput_info[i].x);
6764       y = ED_SETTINGS_Y(textinput_info[i].y);
6765     }
6766
6767     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
6768     infotext[max_infotext_len] = '\0';
6769
6770     gi = CreateGadget(GDI_CUSTOM_ID, id,
6771                       GDI_CUSTOM_TYPE_ID, i,
6772                       GDI_INFO_TEXT, infotext,
6773                       GDI_X, SX + x,
6774                       GDI_Y, SY + y,
6775                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
6776                       GDI_TEXT_VALUE, textinput_info[i].value,
6777                       GDI_TEXT_SIZE, textinput_info[i].size,
6778                       GDI_TEXT_FONT, FONT_INPUT_1,
6779                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6780                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6781                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6782                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6783                       GDI_DESIGN_WIDTH, gd->width,
6784                       GDI_EVENT_MASK, event_mask,
6785                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6786                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
6787                       GDI_END);
6788
6789     if (gi == NULL)
6790       Fail("cannot create gadget");
6791
6792     level_editor_gadget[id] = gi;
6793   }
6794 }
6795
6796 static void CreateTextAreaGadgets(void)
6797 {
6798   int max_infotext_len = getMaxInfoTextLength();
6799   int i;
6800
6801   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
6802   {
6803     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
6804     int gd_x1 = gd->src_x;
6805     int gd_y1 = gd->src_y;
6806     int gd_x2 = gd->src_x + gd->active_xoffset;
6807     int gd_y2 = gd->src_y + gd->active_yoffset;
6808     struct GadgetInfo *gi;
6809     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
6810     char infotext[MAX_OUTPUT_LINESIZE + 1];
6811     int id = textarea_info[i].gadget_id;
6812     int area_xsize = textarea_info[i].xsize;
6813     int area_ysize = textarea_info[i].ysize;
6814
6815     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
6816     infotext[max_infotext_len] = '\0';
6817
6818     gi = CreateGadget(GDI_CUSTOM_ID, id,
6819                       GDI_CUSTOM_TYPE_ID, i,
6820                       GDI_INFO_TEXT, infotext,
6821                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
6822                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
6823                       GDI_TYPE, GD_TYPE_TEXT_AREA,
6824                       GDI_AREA_SIZE, area_xsize, area_ysize,
6825                       GDI_TEXT_FONT, FONT_INPUT_1,
6826                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6827                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6828                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6829                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6830                       GDI_DESIGN_WIDTH, gd->width,
6831                       GDI_EVENT_MASK, event_mask,
6832                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6833                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
6834                       GDI_END);
6835
6836     if (gi == NULL)
6837       Fail("cannot create gadget");
6838
6839     level_editor_gadget[id] = gi;
6840   }
6841 }
6842
6843 static void CreateSelectboxGadgets(void)
6844 {
6845   int max_infotext_len = getMaxInfoTextLength();
6846   int i, j;
6847
6848   for (i = 0; i < ED_NUM_SELECTBOX; i++)
6849   {
6850     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
6851     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
6852     int gd_x1 = gd->src_x;
6853     int gd_y1 = gd->src_y;
6854     int gd_x2 = gd->src_x + gd->active_xoffset;
6855     int gd_y2 = gd->src_y + gd->active_yoffset;
6856     int selectbox_button_xsize = gd2->width;
6857     struct GadgetInfo *gi;
6858     char infotext[MAX_OUTPUT_LINESIZE + 1];
6859     int id = selectbox_info[i].gadget_id;
6860     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
6861     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
6862     unsigned int event_mask =
6863       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6864
6865     if (selectbox_info[i].size == -1)   // dynamically determine size
6866     {
6867       // (we cannot use -1 for uninitialized values if we directly compare
6868       // with results from strlen(), because the '<' and '>' operation will
6869       // implicitely cast -1 to an unsigned integer value!)
6870       selectbox_info[i].size = 0;
6871
6872       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
6873         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
6874           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
6875
6876       selectbox_info[i].size++;         // add one character empty space
6877     }
6878
6879     // determine horizontal position to the right of specified gadget
6880     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
6881       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
6882            ED_GADGET_TEXT_DISTANCE);
6883
6884     // determine horizontal offset for leading text
6885     if (selectbox_info[i].text_left != NULL)
6886       x += getTextWidthForGadget(selectbox_info[i].text_left);
6887
6888     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
6889     infotext[max_infotext_len] = '\0';
6890
6891     gi = CreateGadget(GDI_CUSTOM_ID, id,
6892                       GDI_CUSTOM_TYPE_ID, i,
6893                       GDI_INFO_TEXT, infotext,
6894                       GDI_X, x,
6895                       GDI_Y, y,
6896                       GDI_TYPE, GD_TYPE_SELECTBOX,
6897                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
6898                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
6899                       GDI_TEXT_SIZE, selectbox_info[i].size,
6900                       GDI_TEXT_FONT, FONT_INPUT_1,
6901                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6902                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
6903                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6904                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6905                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6906                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
6907                       GDI_DESIGN_WIDTH, gd->width,
6908                       GDI_EVENT_MASK, event_mask,
6909                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6910                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
6911                       GDI_END);
6912
6913     if (gi == NULL)
6914       Fail("cannot create gadget");
6915
6916     level_editor_gadget[id] = gi;
6917     right_gadget_border[id] =
6918       getRightGadgetBorder(gi, selectbox_info[i].text_right);
6919   }
6920 }
6921
6922 static void CreateTextbuttonGadgets(void)
6923 {
6924   int max_infotext_len = getMaxInfoTextLength();
6925   int i;
6926
6927   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
6928   {
6929     int id = textbutton_info[i].gadget_id;
6930     int is_tab_button =
6931       ((id >= GADGET_ID_LEVELINFO_LEVEL && id <= GADGET_ID_LEVELINFO_EDITOR) ||
6932        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
6933     int graphic =
6934       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
6935     int gadget_distance =
6936       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
6937     struct GraphicInfo *gd = &graphic_info[graphic];
6938     int gd_x1 = gd->src_x;
6939     int gd_y1 = gd->src_y;
6940     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6941     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6942     int gd_x1a = gd->src_x + gd->active_xoffset;
6943     int gd_y1a = gd->src_y + gd->active_yoffset;
6944     int border_xsize = gd->border_size + gd->draw_xoffset;
6945     int border_ysize = gd->border_size;
6946     struct GadgetInfo *gi;
6947     unsigned int event_mask = GD_EVENT_RELEASED;
6948     char infotext[MAX_OUTPUT_LINESIZE + 1];
6949     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
6950     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
6951
6952     if (textbutton_info[i].size == -1)  // dynamically determine size
6953       textbutton_info[i].size = strlen(textbutton_info[i].text);
6954
6955     sprintf(infotext, "%s", textbutton_info[i].infotext);
6956     infotext[max_infotext_len] = '\0';
6957
6958     // determine horizontal position to the right of specified gadget
6959     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6960     {
6961       int gadget_id_align = textbutton_info[i].gadget_id_align;
6962
6963       x = right_gadget_border[gadget_id_align] + gadget_distance;
6964
6965       if (textbutton_info[i].y == -1)
6966         y = level_editor_gadget[gadget_id_align]->y;
6967     }
6968
6969     // determine horizontal offset for leading text
6970     if (textbutton_info[i].text_left != NULL)
6971       x += getTextWidthForGadget(textbutton_info[i].text_left);
6972
6973     gi = CreateGadget(GDI_CUSTOM_ID, id,
6974                       GDI_CUSTOM_TYPE_ID, i,
6975                       GDI_IMAGE_ID, graphic,
6976                       GDI_INFO_TEXT, infotext,
6977                       GDI_X, x,
6978                       GDI_Y, y,
6979                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
6980                       GDI_TEXT_VALUE, textbutton_info[i].text,
6981                       GDI_TEXT_SIZE, textbutton_info[i].size,
6982                       GDI_TEXT_FONT, FONT_INPUT_2,
6983                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
6984                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6985                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6986                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
6987                       GDI_BORDER_SIZE, border_xsize, border_ysize,
6988                       GDI_DESIGN_WIDTH, gd->width,
6989                       GDI_DECORATION_SHIFTING, 1, 1,
6990                       GDI_EVENT_MASK, event_mask,
6991                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6992                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
6993                       GDI_END);
6994
6995     if (gi == NULL)
6996       Fail("cannot create gadget");
6997
6998     level_editor_gadget[id] = gi;
6999     right_gadget_border[id] =
7000       getRightGadgetBorder(gi, textbutton_info[i].text_right);
7001   }
7002 }
7003
7004 static void CreateGraphicbuttonGadgets(void)
7005 {
7006   struct GadgetInfo *gi;
7007   int i;
7008
7009   // create buttons for scrolling of drawing area and element list
7010   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
7011   {
7012     int id = graphicbutton_info[i].gadget_id;
7013     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
7014     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
7015     int graphic = graphicbutton_info[i].graphic;
7016     struct GraphicInfo *gd = &graphic_info[graphic];
7017     int gd_x1 = gd->src_x;
7018     int gd_y1 = gd->src_y;
7019     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7020     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7021     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7022
7023     // determine horizontal position to the right of specified gadget
7024     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7025       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
7026            ED_GADGET_TEXT_DISTANCE);
7027
7028     // determine horizontal offset for leading text
7029     if (graphicbutton_info[i].text_left != NULL)
7030       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
7031
7032     gi = CreateGadget(GDI_CUSTOM_ID, id,
7033                       GDI_CUSTOM_TYPE_ID, i,
7034                       GDI_IMAGE_ID, graphic,
7035                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
7036                       GDI_X, x,
7037                       GDI_Y, y,
7038                       GDI_WIDTH, gd->width,
7039                       GDI_HEIGHT, gd->height,
7040                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7041                       GDI_STATE, GD_BUTTON_UNPRESSED,
7042                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7043                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7044                       GDI_EVENT_MASK, event_mask,
7045                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7046                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
7047                       GDI_END);
7048
7049     if (gi == NULL)
7050       Fail("cannot create gadget");
7051
7052     level_editor_gadget[id] = gi;
7053     right_gadget_border[id] =
7054       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
7055   }
7056 }
7057
7058 static void CreateScrollbarGadgets(void)
7059 {
7060   int i;
7061
7062   // these values are not constant, but can change at runtime
7063   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
7064     SX + ED_SCROLL_HORIZONTAL_XPOS;
7065   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
7066     SY + ED_SCROLL_HORIZONTAL_YPOS;
7067   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
7068     ED_SCROLL_HORIZONTAL_XSIZE;
7069   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
7070     ED_SCROLL_HORIZONTAL_YSIZE;
7071   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
7072   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
7073   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
7074   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
7075
7076   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
7077     SX + ED_SCROLL_VERTICAL_XPOS;
7078   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
7079     SY + ED_SCROLL_VERTICAL_YPOS;
7080   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
7081     ED_SCROLL_VERTICAL_XSIZE;
7082   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
7083     ED_SCROLL_VERTICAL_YSIZE;
7084   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
7085   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
7086   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
7087   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
7088
7089   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
7090     PX + ED_SCROLL2_VERTICAL_XPOS;
7091   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
7092     PY + ED_SCROLL2_VERTICAL_YPOS;
7093   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
7094     ED_SCROLL2_VERTICAL_XSIZE;
7095   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
7096     ED_SCROLL2_VERTICAL_YSIZE;
7097   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
7098   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
7099   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
7100   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
7101
7102   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
7103   {
7104     int id = scrollbar_info[i].gadget_id;
7105     int graphic = scrollbar_info[i].graphic;
7106     struct GraphicInfo *gd = &graphic_info[graphic];
7107     int gd_x1 = gd->src_x;
7108     int gd_y1 = gd->src_y;
7109     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7110     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7111     struct GadgetInfo *gi;
7112     int items_max, items_visible, item_position;
7113     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
7114
7115     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
7116     {
7117       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
7118       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
7119       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
7120     }
7121     else        // drawing area scrollbars
7122     {
7123       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
7124       {
7125         items_max = MAX(lev_fieldx + 2, ed_fieldx);
7126         items_visible = ed_fieldx;
7127         item_position = 0;
7128       }
7129       else
7130       {
7131         items_max = MAX(lev_fieldy + 2, ed_fieldy);
7132         items_visible = ed_fieldy;
7133         item_position = 0;
7134       }
7135     }
7136
7137     gi = CreateGadget(GDI_CUSTOM_ID, id,
7138                       GDI_CUSTOM_TYPE_ID, i,
7139                       GDI_IMAGE_ID, graphic,
7140                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
7141                       GDI_X, scrollbar_pos[i].x,
7142                       GDI_Y, scrollbar_pos[i].y,
7143                       GDI_WIDTH, scrollbar_pos[i].width,
7144                       GDI_HEIGHT, scrollbar_pos[i].height,
7145                       GDI_TYPE, scrollbar_info[i].type,
7146                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
7147                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
7148                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
7149                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
7150                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
7151                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
7152                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
7153                       GDI_STATE, GD_BUTTON_UNPRESSED,
7154                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7155                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7156                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7157                       GDI_EVENT_MASK, event_mask,
7158                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7159                       GDI_CALLBACK_ACTION, HandleControlButtons,
7160                       GDI_END);
7161
7162     if (gi == NULL)
7163       Fail("cannot create gadget");
7164
7165     level_editor_gadget[id] = gi;
7166   }
7167 }
7168
7169 static void CreateCheckbuttonGadgets(void)
7170 {
7171   struct GadgetInfo *gi;
7172   int i;
7173
7174   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
7175   {
7176     int id = checkbutton_info[i].gadget_id;
7177     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
7178                    IMG_EDITOR_CHECKBOX);
7179     struct GraphicInfo *gd = &graphic_info[graphic];
7180     int gd_x1 = gd->src_x;
7181     int gd_y1 = gd->src_y;
7182     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7183     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7184     int gd_x1a = gd->src_x + gd->active_xoffset;
7185     int gd_y1a = gd->src_y + gd->active_yoffset;
7186     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7187     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7188     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
7189     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
7190     unsigned int event_mask = GD_EVENT_PRESSED;
7191
7192     // determine horizontal position to the right of specified gadget
7193     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7194       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
7195            ED_GADGET_TEXT_DISTANCE);
7196
7197     // determine horizontal offset for leading text
7198     if (checkbutton_info[i].text_left != NULL)
7199       x += getTextWidthForGadget(checkbutton_info[i].text_left);
7200
7201     gi = CreateGadget(GDI_CUSTOM_ID, id,
7202                       GDI_CUSTOM_TYPE_ID, i,
7203                       GDI_IMAGE_ID, graphic,
7204                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
7205                       GDI_X, x,
7206                       GDI_Y, y,
7207                       GDI_WIDTH, gd->width,
7208                       GDI_HEIGHT, gd->height,
7209                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
7210                       GDI_CHECKED, *checkbutton_info[i].value,
7211                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7212                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7213                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7214                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7215                       GDI_EVENT_MASK, event_mask,
7216                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7217                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
7218                       GDI_END);
7219
7220     if (gi == NULL)
7221       Fail("cannot create gadget");
7222
7223     level_editor_gadget[id] = gi;
7224     right_gadget_border[id] =
7225       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
7226   }
7227 }
7228
7229 static void CreateRadiobuttonGadgets(void)
7230 {
7231   int graphic = IMG_EDITOR_RADIOBUTTON;
7232   struct GraphicInfo *gd = &graphic_info[graphic];
7233   int gd_x1 = gd->src_x;
7234   int gd_y1 = gd->src_y;
7235   int gd_x2 = gd->src_x + gd->pressed_xoffset;
7236   int gd_y2 = gd->src_y + gd->pressed_yoffset;
7237   int gd_x1a = gd->src_x + gd->active_xoffset;
7238   int gd_y1a = gd->src_y + gd->active_yoffset;
7239   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7240   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7241   struct GadgetInfo *gi;
7242   int i;
7243
7244   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
7245   {
7246     int id = radiobutton_info[i].gadget_id;
7247     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
7248     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
7249     unsigned int event_mask = GD_EVENT_PRESSED;
7250
7251     int checked =
7252       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
7253
7254     // determine horizontal position to the right of specified gadget
7255     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
7256       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
7257            ED_GADGET_TEXT_DISTANCE);
7258
7259     // determine horizontal offset for leading text
7260     if (radiobutton_info[i].text_left != NULL)
7261       x += getTextWidthForGadget(radiobutton_info[i].text_left);
7262
7263     gi = CreateGadget(GDI_CUSTOM_ID, id,
7264                       GDI_CUSTOM_TYPE_ID, i,
7265                       GDI_IMAGE_ID, graphic,
7266                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
7267                       GDI_X, x,
7268                       GDI_Y, y,
7269                       GDI_WIDTH, gd->width,
7270                       GDI_HEIGHT, gd->height,
7271                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
7272                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
7273                       GDI_CHECKED, checked,
7274                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7275                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7276                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7277                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7278                       GDI_EVENT_MASK, event_mask,
7279                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7280                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
7281                       GDI_END);
7282
7283     if (gi == NULL)
7284       Fail("cannot create gadget");
7285
7286     level_editor_gadget[id] = gi;
7287     right_gadget_border[id] =
7288       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
7289   }
7290 }
7291
7292 void CreateLevelEditorGadgets(void)
7293 {
7294   // force EDITOR font inside level editor
7295   SetFontStatus(GAME_MODE_EDITOR);
7296
7297   // these values are not constant, but can change at runtime
7298   ed_fieldx = MAX_ED_FIELDX - 1;
7299   ed_fieldy = MAX_ED_FIELDY - 1;
7300
7301   num_editor_gadgets = NUM_EDITOR_GADGETS;
7302
7303   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
7304
7305   level_editor_gadget =
7306     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
7307   right_gadget_border =
7308     checked_calloc(num_editor_gadgets * sizeof(int));
7309
7310   // set number of empty (padding) element buttons to maximum number of buttons
7311   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
7312
7313   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
7314   editor_el_empty_ptr = editor_el_empty;
7315
7316   use_permanent_palette = !editor.palette.show_as_separate_screen;
7317
7318   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
7319
7320   ReinitializeElementList();
7321
7322   CreateControlButtons();
7323   CreateScrollbarGadgets();
7324
7325   // order of function calls is important because of cross-references
7326   CreateCheckbuttonGadgets();
7327   CreateCounterButtons();
7328   CreateRadiobuttonGadgets();
7329   CreateTextInputGadgets();
7330   CreateTextAreaGadgets();
7331   CreateSelectboxGadgets();
7332   CreateGraphicbuttonGadgets();
7333   CreateTextbuttonGadgets();
7334   CreateDrawingAreas();
7335
7336   ResetFontStatus();
7337 }
7338
7339 void FreeLevelEditorGadgets(void)
7340 {
7341   int i;
7342
7343   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
7344
7345   for (i = 0; i < num_editor_gadgets; i++)
7346   {
7347     FreeGadget(level_editor_gadget[i]);
7348
7349     level_editor_gadget[i] = NULL;
7350   }
7351
7352   checked_free(level_editor_gadget);
7353   checked_free(right_gadget_border);
7354
7355   checked_free(editor_el_empty);
7356 }
7357
7358 static void MapCounterButtons(int id)
7359 {
7360   int font_nr = FONT_TEXT_1;
7361   int font_height = getFontHeight(font_nr);
7362   int gadget_id_down = counterbutton_info[id].gadget_id_down;
7363   int gadget_id_text = counterbutton_info[id].gadget_id_text;
7364   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
7365   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
7366   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
7367   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
7368   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
7369   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7370   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7371   int yoffset = (gi_down->height - font_height) / 2;
7372   int x_left = gi_down->x - xoffset_left;
7373   int x_right;  // set after gadget position was modified
7374   int y_above = gi_down->y - yoffset_above;
7375   int x = gi_down->x;
7376   int y;        // set after gadget position was modified
7377
7378   // counter limits must be changed first to prevent value truncation
7379   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
7380                             counterbutton_info[id].max_value);
7381
7382   // right text position might have changed after setting position above
7383   x_right = gi_up->x + gi_up->width + xoffset_right;
7384
7385   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
7386
7387   // set position for "value[1,2,3,4]" counter gadgets (score in most cases)
7388   if (id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
7389       id <= ED_COUNTER_ID_ELEMENT_VALUE4)
7390   {
7391     ModifyGadget(gi_down, GDI_Y,
7392                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7393     ModifyGadget(gi_text, GDI_Y,
7394                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7395     ModifyGadget(gi_up,   GDI_Y,
7396                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7397   }
7398
7399   // vertical position might have changed after setting position above
7400   y = gi_up->y + yoffset;
7401
7402   if (counterbutton_info[id].text_above)
7403     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
7404
7405   if (counterbutton_info[id].text_left)
7406     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
7407
7408   if (counterbutton_info[id].text_right)
7409     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
7410
7411   MapGadget(gi_down);
7412   MapGadget(gi_text);
7413   MapGadget(gi_up);
7414 }
7415
7416 static void MapControlButtons(void)
7417 {
7418   int counter_id;
7419   int i;
7420
7421   // map toolbox buttons (excluding special CE toolbox buttons)
7422   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
7423     MapGadget(level_editor_gadget[i]);
7424
7425   // map toolbox buttons (element properties buttons)
7426   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
7427     MapGadget(level_editor_gadget[i]);
7428
7429   if (use_permanent_palette)
7430   {
7431     // map buttons to select elements
7432     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7433       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
7434     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
7435     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
7436     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
7437   }
7438
7439   // map buttons to select level
7440   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
7441   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
7442   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
7443   MapCounterButtons(counter_id);
7444 }
7445
7446 static void MapDrawingArea(int id)
7447 {
7448   int font_nr = FONT_TEXT_1;
7449   int font_height = getFontHeight(font_nr);
7450   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7451   int area_xsize = gi->drawing.area_xsize;
7452   int area_ysize = gi->drawing.area_ysize;
7453   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
7454   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
7455   int x_left  = gi->x - xoffset_left;
7456   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
7457   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
7458   int x_below = gi->x + (gi->width - xoffset_below) / 2;
7459   int y_side  = gi->y + (gi->height - font_height) / 2;
7460   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
7461   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
7462
7463   if (drawingarea_info[id].text_left)
7464     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
7465
7466   if (drawingarea_info[id].text_right)
7467     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
7468
7469   if (drawingarea_info[id].text_above)
7470     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
7471
7472   if (drawingarea_info[id].text_below)
7473     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
7474
7475   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
7476   {
7477     DrawElementBorder(gi->x, gi->y,
7478                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
7479                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
7480
7481     DrawDrawingArea(id);
7482   }
7483
7484   MapGadget(gi);
7485 }
7486
7487 static void MapTextInputGadget(int id)
7488 {
7489   int font_nr = FONT_TEXT_1;
7490   int font_height = getFontHeight(font_nr);
7491   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
7492   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7493   int x_above = ED_SETTINGS_X(textinput_info[id].x);
7494   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
7495
7496   if (textinput_info[id].text_above)
7497     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
7498
7499   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
7500
7501   MapGadget(gi);
7502 }
7503
7504 static void MapTextAreaGadget(int id)
7505 {
7506   int font_nr = FONT_TEXT_1;
7507   int font_height = getFontHeight(font_nr);
7508   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
7509   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7510   int x_above = ED_SETTINGS_X(textarea_info[id].x);
7511   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
7512
7513   if (textarea_info[id].text_above)
7514     DrawTextS(x_above, y_above, font_nr, textarea_info[id].text_above);
7515
7516   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
7517
7518   MapGadget(gi);
7519 }
7520
7521 static void MapSelectboxGadget(int id)
7522 {
7523   int font_nr = FONT_TEXT_1;
7524   int font_height = getFontHeight(font_nr);
7525   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
7526   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
7527   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7528   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7529   int yoffset = (gi->height - font_height) / 2;
7530   int x_left = gi->x - xoffset_left;
7531   int x_right = gi->x + gi->width + xoffset_right;
7532   int y_above = gi->y - yoffset_above;
7533   int x = gi->x;
7534   int y = gi->y + yoffset;
7535
7536   if (selectbox_info[id].text_above)
7537     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
7538
7539   if (selectbox_info[id].text_left)
7540     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
7541
7542   if (selectbox_info[id].text_right)
7543     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
7544
7545   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
7546
7547   MapGadget(gi);
7548 }
7549
7550 static void MapTextbuttonGadget(int id)
7551 {
7552   int font_nr = FONT_TEXT_1;
7553   int font_height = getFontHeight(font_nr);
7554   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
7555   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
7556   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7557   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7558   int yoffset = (gi->height - font_height) / 2;
7559   int x_left = gi->x - xoffset_left;
7560   int x_right = gi->x + gi->width + xoffset_right;
7561   int y_above = gi->y - yoffset_above;
7562   int x = gi->x;
7563   int y = gi->y + yoffset;
7564
7565   // only show button to delete change pages when more than minimum pages
7566   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
7567       custom_element.num_change_pages == MIN_CHANGE_PAGES)
7568     return;
7569
7570   if (textbutton_info[id].text_above)
7571     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
7572
7573   if (textbutton_info[id].text_left)
7574     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
7575
7576   if (textbutton_info[id].text_right)
7577     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
7578
7579   MapGadget(gi);
7580 }
7581
7582 static void MapGraphicbuttonGadget(int id)
7583 {
7584   int font_nr = FONT_TEXT_1;
7585   int font_height = getFontHeight(font_nr);
7586   struct GadgetInfo *gi= level_editor_gadget[graphicbutton_info[id].gadget_id];
7587   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
7588   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7589   int yoffset = (gi->height - font_height) / 2;
7590   int x_left = gi->x - xoffset_left;
7591   int x_right = gi->x + gi->width + xoffset_right;
7592   int y = gi->y + yoffset;
7593
7594   if (graphicbutton_info[id].text_left)
7595     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
7596
7597   if (graphicbutton_info[id].text_right)
7598     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
7599
7600   MapGadget(gi);
7601 }
7602
7603 static void MapRadiobuttonGadget(int id)
7604 {
7605   int font_nr = FONT_TEXT_1;
7606   int font_height = getFontHeight(font_nr);
7607   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
7608   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
7609   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7610   int yoffset = (gi->height - font_height) / 2;
7611   int x_left = gi->x - xoffset_left;
7612   int x_right = gi->x + gi->width + xoffset_right;
7613   int y = gi->y + yoffset;
7614   boolean checked =
7615     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
7616
7617   if (radiobutton_info[id].text_left)
7618     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
7619
7620   if (radiobutton_info[id].text_right)
7621     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
7622
7623   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
7624
7625   MapGadget(gi);
7626 }
7627
7628 static void MapCheckbuttonGadget(int id)
7629 {
7630   int font_nr = FONT_TEXT_1;
7631   int font_height = getFontHeight(font_nr);
7632   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
7633   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
7634   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7635   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7636   int yoffset = (gi->height - font_height) / 2;
7637   int y_above = gi->y - yoffset_above;
7638   int x = gi->x;
7639   int x_left, x_right, y;       // set after gadget position was modified
7640
7641   // set position for gadgets with dynamically determined position
7642   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
7643     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x),GDI_END);
7644   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
7645
7646   x_left = gi->x - xoffset_left;
7647   x_right = gi->x + gi->width + xoffset_right;
7648   y = gi->y + yoffset;
7649
7650   if (checkbutton_info[id].text_above)
7651     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
7652
7653   if (checkbutton_info[id].text_left)
7654     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
7655
7656   if (checkbutton_info[id].text_right)
7657     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
7658
7659   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
7660
7661   MapGadget(gi);
7662 }
7663
7664 static void MapMainDrawingArea(void)
7665 {
7666   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
7667   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
7668   int i;
7669
7670   if (suppressBorderElement())
7671   {
7672     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
7673     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
7674   }
7675
7676   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
7677   {
7678     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
7679           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
7680          no_horizontal_scrollbar) ||
7681         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
7682           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
7683          no_vertical_scrollbar))
7684       continue;
7685
7686     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
7687   }
7688
7689   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
7690   {
7691     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
7692         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
7693       continue;
7694
7695     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
7696   }
7697
7698   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
7699 }
7700
7701 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
7702 {
7703   int i;
7704
7705   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7706   {
7707     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
7708         i == GADGET_ID_CUSTOM_COPY_TO ||
7709         i == GADGET_ID_CUSTOM_EXCHANGE ||
7710         i == GADGET_ID_CUSTOM_COPY ||
7711         i == GADGET_ID_CUSTOM_PASTE)
7712     {
7713       if (map)
7714         MapGadget(level_editor_gadget[i]);
7715       else
7716         UnmapGadget(level_editor_gadget[i]);
7717     }
7718   }
7719 }
7720
7721 static void MapLevelEditorToolboxCustomGadgets(void)
7722 {
7723   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
7724 }
7725
7726 static void UnmapLevelEditorToolboxCustomGadgets(void)
7727 {
7728   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
7729 }
7730
7731 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
7732 {
7733   int i;
7734
7735   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
7736   {
7737     if (i != GADGET_ID_SINGLE_ITEMS &&
7738         i != GADGET_ID_PICK_ELEMENT)
7739     {
7740       struct GadgetInfo *gi = level_editor_gadget[i];
7741
7742       if (map)
7743       {
7744         MapGadget(gi);
7745       }
7746       else
7747       {
7748         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
7749         struct GraphicInfo *gd = &graphic_info[graphic];
7750
7751         UnmapGadget(gi);
7752
7753         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
7754                    gi->width, gi->height, gi->x, gi->y);
7755
7756         redraw_mask |= REDRAW_DOOR_3;
7757       }
7758     }
7759   }
7760 }
7761
7762 static void MapLevelEditorToolboxDrawingGadgets(void)
7763 {
7764   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
7765 }
7766
7767 static void UnmapLevelEditorToolboxDrawingGadgets(void)
7768 {
7769   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
7770 }
7771
7772 static void UnmapDrawingArea(int id)
7773 {
7774   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
7775 }
7776
7777 static void UnmapLevelEditorFieldGadgets(void)
7778 {
7779   int i;
7780
7781   for (i = 0; i < num_editor_gadgets; i++)
7782     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
7783                           level_editor_gadget[i]->y))
7784       UnmapGadget(level_editor_gadget[i]);
7785 }
7786
7787 void UnmapLevelEditorGadgets(void)
7788 {
7789   int i;
7790
7791   for (i = 0; i < num_editor_gadgets; i++)
7792     UnmapGadget(level_editor_gadget[i]);
7793 }
7794
7795 static void ResetUndoBuffer(void)
7796 {
7797   undo_buffer_position = -1;
7798   undo_buffer_steps = -1;
7799   redo_buffer_steps = 0;
7800
7801   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
7802
7803   level.changed = FALSE;
7804 }
7805
7806 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
7807 {
7808   if (remap_toolbox_gadgets)
7809   {
7810     ModifyEditorElementList();
7811     RedrawDrawingElements();
7812   }
7813
7814   if (edit_mode == ED_MODE_INFO)
7815     DrawLevelInfoWindow();
7816   else if (edit_mode == ED_MODE_PROPERTIES)
7817     DrawPropertiesWindow();
7818   else if (edit_mode == ED_MODE_PALETTE)
7819     DrawPaletteWindow();
7820   else  // edit_mode == ED_MODE_DRAWING
7821     DrawDrawingWindowExt(remap_toolbox_gadgets);
7822 }
7823
7824 static void DrawEditModeWindow(void)
7825 {
7826   DrawEditModeWindowExt(TRUE);
7827 }
7828
7829 static void DrawEditModeWindow_PlayfieldOnly(void)
7830 {
7831   DrawEditModeWindowExt(FALSE);
7832 }
7833
7834 static void ChangeEditModeWindow(int new_edit_mode)
7835 {
7836   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
7837
7838   DrawEditModeWindow();
7839 }
7840
7841 static boolean LevelChanged(void)
7842 {
7843   boolean field_changed = FALSE;
7844   int x, y;
7845
7846   for (y = 0; y < lev_fieldy; y++)
7847     for (x = 0; x < lev_fieldx; x++)
7848       if (Tile[x][y] != level.field[x][y])
7849         field_changed = TRUE;
7850
7851   return (level.changed || field_changed);
7852 }
7853
7854 static boolean PrepareSavingIntoPersonalLevelSet(void)
7855 {
7856   static LevelDirTree *last_copied_leveldir = NULL;
7857   static LevelDirTree *last_written_leveldir = NULL;
7858   static int last_copied_level_nr = -1;
7859   static int last_written_level_nr = -1;
7860   LevelDirTree *leveldir_former = leveldir_current;
7861   int level_nr_former = level_nr;
7862   int new_level_nr;
7863
7864   // remember last mod/save so that for current session, we write
7865   // back to the same personal copy, asking only about overwrite.
7866   if (leveldir_current == last_copied_leveldir &&
7867       level_nr == last_copied_level_nr)
7868   {
7869     // "cd" to personal level set dir (as used when writing last copy)
7870     leveldir_current = last_written_leveldir;
7871     level_nr = last_written_level_nr;
7872
7873     return TRUE;
7874   }
7875
7876   if (!Request("This level is read-only! "
7877                "Save into personal level set?", REQ_ASK))
7878     return FALSE;
7879
7880   // "cd" to personal level set dir (for writing copy the first time)
7881   leveldir_current =
7882     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
7883
7884   // this may happen if "setup.internal.create_user_levelset" is FALSE
7885   // or if file "levelinfo.conf" is missing in personal user level set
7886   if (leveldir_current == NULL)
7887   {
7888     Request("Cannot find personal level set?!", REQ_CONFIRM);
7889
7890     leveldir_current = leveldir_former;
7891
7892     return FALSE;
7893   }
7894
7895   // find unused level number
7896   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
7897   {
7898     static char *level_filename = NULL;
7899
7900     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
7901
7902     if (!fileExists(level_filename))
7903       break;
7904   }
7905
7906   last_copied_leveldir = leveldir_former;
7907   last_copied_level_nr = level_nr_former;
7908
7909   last_written_leveldir = leveldir_current;
7910   last_written_level_nr = level_nr = new_level_nr;
7911
7912   return TRUE;
7913 }
7914
7915 static void ModifyLevelInfoForSavingIntoPersonalLevelSet(char *former_name)
7916 {
7917   static char *filename_levelinfo = NULL, *mod_name = NULL;
7918   FILE *file;
7919
7920   // annotate this copy-and-mod in personal levelinfo.conf
7921   setString(&filename_levelinfo,
7922             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
7923
7924   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
7925   {
7926     fprintf(file, "\n");
7927     fprintf(file, "# level %d was modified from:\n", level_nr);
7928     fprintf(file, "# - previous level set name:    %s\n",
7929             former_name);
7930     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
7931             level.file_info.nr, level.name);
7932     fprintf(file, "# - previous author:            %s\n",
7933             level.author);
7934     fprintf(file, "# - previous save date:         ");
7935
7936     if (level.creation_date.src == DATE_SRC_LEVELFILE)
7937     {
7938       fprintf(file, "%04d-%02d-%02d\n",
7939               level.creation_date.year,
7940               level.creation_date.month,
7941               level.creation_date.day);
7942     }
7943     else
7944     {
7945       fprintf(file, "not recorded\n");
7946     }
7947
7948     fclose(file);
7949   }
7950
7951   if (level_nr > leveldir_current->last_level)
7952     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
7953
7954   // else: allow the save even if annotation failed
7955
7956   // now... spray graffiti on the old level vital statistics
7957   // user can change these; just trying to set a good baseline
7958
7959   // don't truncate names for fear of making offensive or silly:
7960   // long-named original author only recorded in levelinfo.conf.
7961   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
7962   if (!strEqual(level.author, leveldir_current->author))
7963   {
7964     setString(&mod_name, getStringCat3(leveldir_current->author,
7965                                        " after ", level.author));
7966
7967     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
7968       setString(&mod_name,
7969                 getStringCat2(leveldir_current->author, " (ed.)"));
7970
7971     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
7972       setString(&mod_name, leveldir_current->author);
7973
7974     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
7975
7976     // less worried about truncation here
7977     setString(&mod_name, getStringCat2("Mod: ", level.name));
7978     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
7979   }
7980 }
7981
7982 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
7983                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
7984 {
7985   int x, y;
7986
7987   for (x = 0; x < lev_fieldx; x++)
7988     for (y = 0; y < lev_fieldy; y++)
7989       dst[x][y] = src[x][y];
7990 }
7991
7992 static int setSelectboxValue(int selectbox_id, int new_value)
7993 {
7994   int new_index_value = 0;
7995   int i;
7996
7997   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
7998     if (selectbox_info[selectbox_id].options[i].value == new_value)
7999       new_index_value = i;
8000
8001   *selectbox_info[selectbox_id].value =
8002     selectbox_info[selectbox_id].options[new_index_value].value;
8003
8004   return new_index_value;
8005 }
8006
8007 static void setSelectboxSpecialActionVariablesIfNeeded(void)
8008 {
8009   int i;
8010
8011   // change action mode and arg variables according to action type variable
8012   for (i = 0; action_arg_options[i].value != -1; i++)
8013   {
8014     if (action_arg_options[i].value == custom_element_change.action_type)
8015     {
8016       int mode = action_arg_options[i].mode;
8017
8018       // only change if corresponding selectbox has changed
8019       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
8020           action_arg_modes[mode])
8021         custom_element_change.action_mode = -1;
8022
8023       // only change if corresponding selectbox has changed
8024       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
8025           action_arg_options[i].options)
8026         custom_element_change.action_arg = -1;
8027
8028       break;
8029     }
8030   }
8031 }
8032
8033 static void setSelectboxSpecialActionOptions(void)
8034 {
8035   int i;
8036
8037   // change action mode and arg selectbox according to action type selectbox
8038   for (i = 0; action_arg_options[i].value != -1; i++)
8039   {
8040     if (action_arg_options[i].value == custom_element_change.action_type)
8041     {
8042       int mode = action_arg_options[i].mode;
8043
8044       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
8045                                    action_arg_modes[mode]);
8046       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
8047                                  custom_element_change.action_mode);
8048
8049       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
8050                                    action_arg_options[i].options);
8051       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
8052                                  custom_element_change.action_arg);
8053       break;
8054     }
8055   }
8056 }
8057
8058 static void copy_custom_element_settings(int element_from, int element_to)
8059 {
8060   struct ElementInfo *ei_from = &element_info[element_from];
8061   struct ElementInfo *ei_to = &element_info[element_to];
8062
8063   copyElementInfo(ei_from, ei_to);
8064 }
8065
8066 static void replace_custom_element_in_settings(int element_from,
8067                                                int element_to)
8068 {
8069   int i, j, x, y;
8070
8071   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8072   {
8073     struct ElementInfo *ei = &element_info[i];
8074
8075     for (y = 0; y < 3; y++)
8076       for (x = 0; x < 3; x++)
8077         if (ei->content.e[x][y] == element_from)
8078           ei->content.e[x][y] = element_to;
8079
8080     for (j = 0; j < ei->num_change_pages; j++)
8081     {
8082       struct ElementChangeInfo *change = &ei->change_page[j];
8083
8084       if (change->target_element == element_from)
8085         change->target_element = element_to;
8086
8087       if (change->initial_trigger_element == element_from)
8088         change->initial_trigger_element = element_to;
8089
8090       if (change->action_element == element_from)
8091         change->action_element = element_to;
8092
8093       for (y = 0; y < 3; y++)
8094         for (x = 0; x < 3; x++)
8095           if (change->target_content.e[x][y] == element_from)
8096             change->target_content.e[x][y] = element_to;
8097     }
8098
8099     if (ei->group != NULL)                              // group or internal
8100       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
8101         if (ei->group->element[j] == element_from)
8102           ei->group->element[j] = element_to;
8103   }
8104 }
8105
8106 static void replace_custom_element_in_playfield(int element_from,
8107                                                 int element_to)
8108 {
8109   int x, y;
8110
8111   for (x = 0; x < lev_fieldx; x++)
8112     for (y = 0; y < lev_fieldy; y++)
8113       if (Tile[x][y] == element_from)
8114         Tile[x][y] = element_to;
8115 }
8116
8117 static boolean CopyCustomElement(int element_old, int element_new,
8118                                  int copy_mode)
8119 {
8120   int copy_mode_orig = copy_mode;
8121
8122   if (copy_mode == GADGET_ID_CUSTOM_COPY)
8123   {
8124     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
8125                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
8126     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
8127   }
8128   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
8129   {
8130     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
8131                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
8132     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
8133
8134     level.changed = TRUE;
8135   }
8136   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
8137   {
8138     Request("Please choose custom element!", REQ_CONFIRM);
8139
8140     return FALSE;
8141   }
8142   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
8143   {
8144     Request("Please choose group element!", REQ_CONFIRM);
8145
8146     return FALSE;
8147   }
8148   else
8149   {
8150     level.changed = TRUE;
8151   }
8152
8153   // when modifying custom/group element, ask for copying level template
8154   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
8155   {
8156     if (!AskToCopyAndModifyLevelTemplate())
8157       return FALSE;
8158   }
8159
8160   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
8161   {
8162     copy_custom_element_settings(element_new, element_old);
8163   }
8164   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
8165   {
8166     copy_custom_element_settings(element_old, element_new);
8167   }
8168   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
8169   {
8170     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
8171     copy_custom_element_settings(element_new, element_old);
8172     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
8173
8174     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
8175     replace_custom_element_in_settings(element_new, element_old);
8176     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
8177
8178     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
8179     replace_custom_element_in_playfield(element_new, element_old);
8180     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
8181   }
8182
8183   UpdateCustomElementGraphicGadgets();
8184   DrawPropertiesWindow();
8185
8186   return TRUE;
8187 }
8188
8189 static void CopyCustomElementPropertiesToEditor(int element)
8190 {
8191   int i;
8192   int current_change_page = element_info[element].current_change_page;
8193
8194   // dynamically (re)build selectbox for selecting change page
8195   for (i = 0; i < element_info[element].num_change_pages; i++)
8196   {
8197     sprintf(options_change_page_strings[i], "%d", i + 1);
8198
8199     options_change_page[i].value = i;
8200     options_change_page[i].text = options_change_page_strings[i];
8201   }
8202
8203   options_change_page[i].value = -1;
8204   options_change_page[i].text = NULL;
8205
8206   // needed here to initialize combined element properties
8207   InitElementPropertiesEngine(level.game_version);
8208
8209   element_info[element].change =
8210     &element_info[element].change_page[current_change_page];
8211
8212   custom_element = element_info[element];
8213   custom_element_change = *element_info[element].change;
8214
8215   // needed to initially set selectbox options for special action options
8216   setSelectboxSpecialActionOptions();
8217
8218   // needed to initially set selectbox value variables to reliable defaults
8219   for (i = 0; i < ED_NUM_SELECTBOX; i++)
8220     setSelectboxValue(i, *selectbox_info[i].value);
8221
8222   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
8223     custom_element_properties[i] = HAS_PROPERTY(element, i);
8224
8225   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
8226     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
8227
8228   // ---------- element settings: configure (custom elements) -----------------
8229
8230   // set accessible layer selectbox help value
8231   custom_element.access_type =
8232     (IS_WALKABLE(element) ? EP_WALKABLE :
8233      IS_PASSABLE(element) ? EP_PASSABLE :
8234      custom_element.access_type);
8235   custom_element.access_layer =
8236     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
8237      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
8238      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
8239      custom_element.access_layer);
8240   custom_element.access_protected =
8241     (IS_PROTECTED(element) ? 1 : 0);
8242   custom_element_properties[EP_ACCESSIBLE] =
8243     (IS_ACCESSIBLE_OVER(element) ||
8244      IS_ACCESSIBLE_INSIDE(element) ||
8245      IS_ACCESSIBLE_UNDER(element));
8246
8247   // set walk-to-object action selectbox help value
8248   custom_element.walk_to_action =
8249     (IS_DIGGABLE(element) ? EP_DIGGABLE :
8250      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
8251      IS_DROPPABLE(element) ? EP_DROPPABLE :
8252      IS_THROWABLE(element) ? EP_THROWABLE :
8253      IS_PUSHABLE(element) ? EP_PUSHABLE :
8254      custom_element.walk_to_action);
8255   custom_element_properties[EP_WALK_TO_OBJECT] =
8256     (IS_DIGGABLE(element) ||
8257      IS_COLLECTIBLE_ONLY(element) ||
8258      IS_DROPPABLE(element) ||
8259      IS_THROWABLE(element) ||
8260      IS_PUSHABLE(element));
8261
8262   // set smash targets selectbox help value
8263   custom_element.smash_targets =
8264     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
8265      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
8266      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
8267      custom_element.smash_targets);
8268   custom_element_properties[EP_CAN_SMASH] =
8269     (CAN_SMASH_EVERYTHING(element) ||
8270      CAN_SMASH_ENEMIES(element) ||
8271      CAN_SMASH_PLAYER(element));
8272
8273   // set deadliness selectbox help value
8274   custom_element.deadliness =
8275     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
8276      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
8277      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
8278      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
8279      custom_element.deadliness);
8280   custom_element_properties[EP_DEADLY] =
8281     (DONT_TOUCH(element) ||
8282      DONT_GET_HIT_BY(element) ||
8283      DONT_COLLIDE_WITH(element) ||
8284      DONT_RUN_INTO(element));
8285
8286   // ---------- element settings: advanced (custom elements) ------------------
8287
8288   // set "change by direct action" selectbox help value
8289   custom_element_change.direct_action =
8290     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
8291      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
8292      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
8293      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
8294      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
8295      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
8296      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
8297      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
8298      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
8299      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
8300      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
8301      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
8302      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
8303      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
8304      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
8305      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
8306      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
8307      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
8308      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
8309      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
8310      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
8311      custom_element_change.direct_action);
8312
8313   // set "change by other element action" selectbox help value
8314   custom_element_change.other_action =
8315     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
8316      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
8317      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
8318      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
8319      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
8320      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
8321      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
8322      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
8323      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
8324      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
8325      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
8326      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
8327      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
8328      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
8329      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
8330      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
8331      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
8332      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
8333      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
8334      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
8335      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
8336      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
8337      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
8338      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
8339      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
8340      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
8341      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
8342      custom_element_change.other_action);
8343 }
8344
8345 static void CopyGroupElementPropertiesToEditor(int element)
8346 {
8347   group_element_info = *element_info[element].group;
8348   custom_element = element_info[element];       // needed for description
8349 }
8350
8351 static void CopyEmptyElementPropertiesToEditor(int element)
8352 {
8353   custom_element = element_info[element];
8354 }
8355
8356 static void CopyClassicElementPropertiesToEditor(int element)
8357 {
8358   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
8359     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
8360       getMoveIntoAcidProperty(&level, element);
8361
8362   if (MAYBE_DONT_COLLIDE_WITH(element))
8363     custom_element_properties[EP_DONT_COLLIDE_WITH] =
8364       getDontCollideWithProperty(&level, element);
8365 }
8366
8367 static void CopyElementPropertiesToEditor(int element)
8368 {
8369   if (IS_CUSTOM_ELEMENT(element))
8370     CopyCustomElementPropertiesToEditor(element);
8371   else if (IS_GROUP_ELEMENT(element))
8372     CopyGroupElementPropertiesToEditor(element);
8373   else if (IS_EMPTY_ELEMENT(element))
8374     CopyEmptyElementPropertiesToEditor(element);
8375   else
8376     CopyClassicElementPropertiesToEditor(element);
8377 }
8378
8379 static boolean AskToCopyAndModifyLevelTemplate(void)
8380 {
8381   if (Request("Copy and modify settings from level template?", REQ_ASK))
8382   {
8383     level.use_custom_template = FALSE;
8384
8385     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
8386                  GDI_CHECKED, FALSE, GDI_END);
8387     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
8388                  GDI_CHECKED, FALSE, GDI_END);
8389
8390     return TRUE;
8391   }
8392   else
8393   {
8394     LoadLevelTemplate(-1);      // this resets all element modifications ...
8395
8396     DrawEditModeWindow();       // ... and copies them to 'custom_element'
8397
8398     return FALSE;
8399   }
8400 }
8401
8402 static void CopyCustomElementPropertiesToGame(int element)
8403 {
8404   int i;
8405   int access_type_and_layer;
8406
8407   // mark that this custom element has been modified
8408   custom_element.modified_settings = TRUE;
8409   level.changed = TRUE;
8410
8411   if (level.use_custom_template)
8412     AskToCopyAndModifyLevelTemplate();
8413
8414   element_info[element] = custom_element;
8415   *element_info[element].change = custom_element_change;
8416
8417   // ---------- element settings: configure (custom elements) -----------------
8418
8419   // set accessible property from checkbox and selectbox
8420   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
8421   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
8422   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
8423   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
8424   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
8425   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
8426   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
8427                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
8428                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
8429   custom_element_properties[access_type_and_layer] =
8430     custom_element_properties[EP_ACCESSIBLE];
8431   custom_element_properties[EP_PROTECTED] =
8432     (custom_element.access_protected != 0 &&
8433      custom_element_properties[EP_ACCESSIBLE]);
8434
8435   // set walk-to-object property from checkbox and selectbox
8436   custom_element_properties[EP_DIGGABLE] = FALSE;
8437   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
8438   custom_element_properties[EP_DROPPABLE] = FALSE;
8439   custom_element_properties[EP_THROWABLE] = FALSE;
8440   custom_element_properties[EP_PUSHABLE] = FALSE;
8441   custom_element_properties[custom_element.walk_to_action] =
8442     custom_element_properties[EP_WALK_TO_OBJECT];
8443
8444   // set smash property from checkbox and selectbox
8445   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
8446   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
8447   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
8448   custom_element_properties[custom_element.smash_targets] =
8449     custom_element_properties[EP_CAN_SMASH];
8450
8451   // set deadliness property from checkbox and selectbox
8452   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
8453   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
8454   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
8455   custom_element_properties[EP_DONT_TOUCH] = FALSE;
8456   custom_element_properties[custom_element.deadliness] =
8457     custom_element_properties[EP_DEADLY];
8458
8459   // ---------- element settings: advanced (custom elements) ------------------
8460
8461   // set player change event from checkbox and selectbox
8462   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
8463   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
8464   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
8465   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
8466   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
8467   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
8468   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
8469   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
8470   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
8471   custom_element_change_events[CE_SWITCHED] = FALSE;
8472   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
8473   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
8474   custom_element_change_events[CE_BLOCKED] = FALSE;
8475   custom_element_change_events[CE_IMPACT] = FALSE;
8476   custom_element_change_events[CE_SMASHED] = FALSE;
8477   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
8478   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
8479   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
8480   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
8481   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
8482   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
8483   custom_element_change_events[custom_element_change.direct_action] =
8484     custom_element_change_events[CE_BY_DIRECT_ACTION];
8485
8486   // set other element action change event from checkbox and selectbox
8487   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
8488   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
8489   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
8490   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
8491   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
8492   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
8493   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
8494   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
8495   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
8496   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
8497   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
8498   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
8499   custom_element_change_events[CE_TOUCHING_X] = FALSE;
8500   custom_element_change_events[CE_HITTING_X] = FALSE;
8501   custom_element_change_events[CE_DIGGING_X] = FALSE;
8502   custom_element_change_events[CE_HIT_BY_X] = FALSE;
8503   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
8504   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
8505   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
8506   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
8507   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
8508   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
8509   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
8510   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
8511   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
8512   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
8513   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
8514   custom_element_change_events[custom_element_change.other_action] =
8515     custom_element_change_events[CE_BY_OTHER_ACTION];
8516
8517   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
8518     SET_PROPERTY(element, i, custom_element_properties[i]);
8519
8520   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
8521     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
8522
8523   // copy change events also to special level editor variable
8524   custom_element = element_info[element];
8525   custom_element_change = *element_info[element].change;
8526
8527   // needed here to restore runtime value "element_info[element].gfx_element"
8528   InitElementPropertiesGfxElement();
8529 }
8530
8531 static void CopyGroupElementPropertiesToGame(int element)
8532 {
8533   // mark that this group element has been modified
8534   custom_element.modified_settings = TRUE;
8535   level.changed = TRUE;
8536
8537   if (level.use_custom_template)
8538     AskToCopyAndModifyLevelTemplate();
8539
8540   element_info[element] = custom_element;
8541   *element_info[element].group = group_element_info;
8542
8543   // needed here to restore runtime value "element_info[element].gfx_element"
8544   InitElementPropertiesGfxElement();
8545 }
8546
8547 static void CopyEmptyElementPropertiesToGame(int element)
8548 {
8549   // mark that this empty element has been modified
8550   custom_element.modified_settings = TRUE;
8551   level.changed = TRUE;
8552
8553   if (level.use_custom_template)
8554     AskToCopyAndModifyLevelTemplate();
8555
8556   element_info[element] = custom_element;
8557
8558   // needed here to restore runtime value "element_info[element].gfx_element"
8559   InitElementPropertiesGfxElement();
8560 }
8561
8562 static void CopyClassicElementPropertiesToGame(int element)
8563 {
8564   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
8565     setMoveIntoAcidProperty(&level, element,
8566                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
8567
8568   if (MAYBE_DONT_COLLIDE_WITH(element))
8569     setDontCollideWithProperty(&level, element,
8570                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
8571 }
8572
8573 static void CopyElementPropertiesToGame(int element)
8574 {
8575   if (IS_CUSTOM_ELEMENT(element))
8576     CopyCustomElementPropertiesToGame(element);
8577   else if (IS_GROUP_ELEMENT(element))
8578     CopyGroupElementPropertiesToGame(element);
8579   else if (IS_EMPTY_ELEMENT(element))
8580     CopyEmptyElementPropertiesToGame(element);
8581   else
8582     CopyClassicElementPropertiesToGame(element);
8583 }
8584
8585 #if DEBUG
8586 static void CheckElementDescriptions(void)
8587 {
8588   int i;
8589
8590   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8591     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
8592       Warn("no element description file for element '%s'", EL_NAME(i));
8593 }
8594 #endif
8595
8596 static int getMaxEdFieldX(boolean has_scrollbar)
8597 {
8598   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
8599   int sxsize = SXSIZE - scrollbar_width;
8600   int max_ed_fieldx = sxsize / ed_tilesize;
8601
8602   return max_ed_fieldx;
8603 }
8604
8605 static int getMaxEdFieldY(boolean has_scrollbar)
8606 {
8607   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
8608                          INFOTEXT_YSIZE_FULL : 0);
8609   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
8610   int sysize = SYSIZE - scrollbar_height - infotext_height;
8611   int max_ed_fieldy = sysize / ed_tilesize;
8612
8613   return max_ed_fieldy;
8614 }
8615
8616 static void InitZoomLevelSettings(int zoom_tilesize)
8617 {
8618   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
8619
8620   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
8621   {
8622     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
8623     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
8624
8625     // make sure that tile size is always a power of 2
8626     ed_tilesize = (1 << log_2(ed_tilesize));
8627
8628     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
8629     {
8630       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
8631       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
8632     }
8633   }
8634
8635   last_game_engine_type = level.game_engine_type;
8636
8637   // limit zoom tilesize by upper and lower bound
8638   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
8639
8640   // store zoom tilesize in auto setup file only if it was manually changed
8641   if (zoom_tilesize != -1)
8642     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
8643
8644   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
8645   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
8646 }
8647
8648 static void InitDrawingElements(void)
8649 {
8650   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
8651
8652   if (level.game_engine_type == game_engine_type_last)
8653     return;
8654
8655   if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
8656   {
8657     new_element1 = EL_SP_CHIP_SINGLE;
8658     new_element2 = EL_EMPTY;
8659     new_element3 = EL_SP_BASE;
8660   }
8661   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
8662   {
8663     new_element1 = EL_MM_MIRROR_START;
8664     new_element2 = EL_EMPTY;
8665     new_element3 = EL_MM_WOODEN_WALL;
8666   }
8667   else
8668   {
8669     new_element1 = EL_WALL;
8670     new_element2 = EL_EMPTY;
8671     new_element3 = EL_SAND;
8672   }
8673
8674   game_engine_type_last = level.game_engine_type;
8675 }
8676
8677 static void InitLevelSetInfo(void)
8678 {
8679   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
8680            "%s", leveldir_current->name);
8681   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
8682            "%s", leveldir_current->author);
8683
8684   levelset_num_levels = leveldir_current->levels;
8685
8686   levelset_use_levelset_artwork = FALSE;
8687   levelset_copy_level_template = FALSE;
8688
8689   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
8690 }
8691
8692 static void ChangeEditorToLevelSet(char *levelset_subdir)
8693 {
8694   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
8695
8696   // the previous level set might have used custom artwork
8697   ReloadCustomArtwork(0);
8698
8699   LoadLevelSetup_SeriesInfo();
8700
8701   SaveLevelSetup_LastSeries();
8702   SaveLevelSetup_SeriesInfo();
8703
8704   TapeErase();
8705
8706   LoadLevel(level_nr);
8707   LoadScore(level_nr);
8708
8709   DrawLevelEd();
8710 }
8711
8712 static boolean useEditorDoorAnimation(void)
8713 {
8714   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
8715   boolean door_1_viewport_unchanged =
8716     (vp_door_1->x      == DX     &&
8717      vp_door_1->y      == DY     &&
8718      vp_door_1->width  == DXSIZE &&
8719      vp_door_1->height == DYSIZE);
8720   boolean door_1_contains_toolbox =
8721     (EX >= DX &&
8722      EY >= DY &&
8723      EX + EXSIZE <= DX + DXSIZE &&
8724      EY + EYSIZE <= DY + DYSIZE);
8725
8726   return (door_1_viewport_unchanged && door_1_contains_toolbox);
8727 }
8728
8729 static void DrawEditorDoorBackground(int graphic, int x, int y,
8730                                      int width, int height)
8731 {
8732   struct GraphicInfo *g = &graphic_info[graphic];
8733
8734   if (g->bitmap != NULL)
8735     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
8736                MIN(width, g->width), MIN(height, g->height), x, y);
8737   else
8738     ClearRectangle(drawto, x, y, width, height);
8739 }
8740
8741 static void DrawEditorDoorContent(void)
8742 {
8743   // needed for gadgets drawn on background (like palette scrollbar)
8744   SetDoorBackgroundImage(IMG_UNDEFINED);
8745
8746   // copy default editor door content to main double buffer
8747   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
8748
8749   // draw bigger door
8750   DrawSpecialEditorDoor();
8751
8752   // draw new control window
8753   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
8754
8755   // draw all toolbox gadgets to editor doors
8756   MapControlButtons();
8757
8758   // draw all palette gadgets to editor doors
8759   ModifyEditorElementList();
8760   RedrawDrawingElements();
8761
8762   // copy actual editor door content to door double buffer for OpenDoor()
8763   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
8764 }
8765
8766 void DrawLevelEd(void)
8767 {
8768   int fade_mask = REDRAW_FIELD;
8769
8770   FadeSoundsAndMusic();
8771
8772   if (CheckFadeAll())
8773     fade_mask = REDRAW_ALL;
8774
8775   FadeOut(fade_mask);
8776
8777   // needed if different viewport properties defined for editor
8778   ChangeViewportPropertiesIfNeeded();
8779
8780   ClearField();
8781
8782   InitZoomLevelSettings(-1);
8783   InitDrawingElements();
8784   InitLevelSetInfo();
8785
8786 #if DEBUG
8787   CheckElementDescriptions();
8788 #endif
8789
8790   if (level_editor_test_game)
8791   {
8792     CopyPlayfield(level.field, Tile);
8793     CopyPlayfield(TileBackup, level.field);
8794
8795     level_editor_test_game = FALSE;
8796   }
8797   else
8798   {
8799     edit_mode = ED_MODE_DRAWING;
8800     edit_mode_levelinfo = ED_MODE_LEVELINFO_LEVEL;
8801     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
8802
8803     ResetUndoBuffer();
8804
8805     level_xpos = -1;
8806     level_ypos = -1;
8807   }
8808
8809   // redraw_mask |= REDRAW_ALL;
8810
8811   FreeLevelEditorGadgets();
8812   CreateLevelEditorGadgets();
8813
8814   ReinitializeElementList();            // update dynamic level element list
8815   ReinitializeElementListButtons();     // custom element may look different
8816
8817   InitElementPropertiesGfxElement();
8818
8819   UnmapAllGadgets();
8820
8821   DrawEditModeWindow_PlayfieldOnly();
8822
8823   DrawMaskedBorder(fade_mask);
8824
8825   // use door animation if door 1 viewport is unchanged and contains toolbox
8826   if (useEditorDoorAnimation())
8827   {
8828     FadeIn(fade_mask);
8829
8830     DrawEditorDoorContent();
8831
8832     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
8833   }
8834   else
8835   {
8836     DrawEditorDoorContent();
8837
8838     FadeIn(fade_mask);
8839   }
8840
8841   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
8842 }
8843
8844 static void AdjustDrawingAreaGadgets(void)
8845 {
8846   int ed_xsize = lev_fieldx + 2;
8847   int ed_ysize = lev_fieldy + 2;
8848   int max_ed_fieldx = MAX_ED_FIELDX;
8849   int max_ed_fieldy = MAX_ED_FIELDY;
8850   boolean horizontal_scrollbar_needed;
8851   boolean vertical_scrollbar_needed;
8852   int x, y, width, height;
8853
8854   if (suppressBorderElement())
8855   {
8856     ed_xsize = max_ed_fieldx;
8857     ed_ysize = max_ed_fieldy;
8858   }
8859
8860   // check if we need any scrollbars
8861   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
8862   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
8863
8864   // check if we have a smaller editor field because of scrollbars
8865   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
8866   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
8867
8868   // check again if we now need more scrollbars because of less space
8869   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
8870   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
8871
8872   // check if editor field gets even smaller after adding new scrollbars
8873   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
8874   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
8875
8876   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
8877   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
8878
8879   x = SX + ed_fieldx * ed_tilesize;
8880   y = SY + ed_fieldy * ed_tilesize;
8881
8882   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
8883   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
8884
8885   // adjust drawing area gadget
8886   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
8887                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
8888                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
8889                GDI_END);
8890
8891   // adjust horizontal scrollbar gadgets
8892   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
8893                GDI_Y, y,
8894                GDI_END);
8895   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
8896                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
8897                GDI_Y, y,
8898                GDI_END);
8899   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
8900                GDI_Y, y,
8901                GDI_WIDTH, width,
8902                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
8903                GDI_END);
8904
8905   // adjust vertical scrollbar gadgets
8906   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
8907                GDI_X, x,
8908                GDI_END);
8909   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
8910                GDI_X, x,
8911                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
8912                GDI_END);
8913   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
8914                GDI_X, x,
8915                GDI_HEIGHT, height,
8916                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
8917                GDI_END);
8918 }
8919
8920 static void AdjustLevelScrollPosition(void)
8921 {
8922   if (level_xpos < -1)
8923     level_xpos = -1;
8924   if (level_xpos > lev_fieldx - ed_fieldx + 1)
8925     level_xpos = lev_fieldx - ed_fieldx + 1;
8926   if (lev_fieldx < ed_fieldx - 2)
8927     level_xpos = -1;
8928
8929   if (level_ypos < -1)
8930     level_ypos = -1;
8931   if (level_ypos > lev_fieldy - ed_fieldy + 1)
8932     level_ypos = lev_fieldy - ed_fieldy + 1;
8933   if (lev_fieldy < ed_fieldy - 2)
8934     level_ypos = -1;
8935
8936   if (suppressBorderElement())
8937   {
8938     level_xpos = 0;
8939     level_ypos = 0;
8940   }
8941 }
8942
8943 static void AdjustEditorScrollbar(int id)
8944 {
8945   struct GadgetInfo *gi = level_editor_gadget[id];
8946   int items_max, items_visible, item_position;
8947
8948   if (id == GADGET_ID_SCROLL_HORIZONTAL)
8949   {
8950     items_max = MAX(lev_fieldx + 2, ed_fieldx);
8951     items_visible = ed_fieldx;
8952     item_position = level_xpos + 1;
8953   }
8954   else
8955   {
8956     items_max = MAX(lev_fieldy + 2, ed_fieldy);
8957     items_visible = ed_fieldy;
8958     item_position = level_ypos + 1;
8959   }
8960
8961   if (item_position > items_max - items_visible)
8962     item_position = items_max - items_visible;
8963
8964   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
8965                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
8966 }
8967
8968 static void AdjustElementListScrollbar(void)
8969 {
8970   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
8971   int items_max, items_visible, item_position;
8972
8973   // correct position of element list scrollbar
8974   if (element_shift < 0)
8975     element_shift = 0;
8976   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
8977     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
8978
8979   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
8980   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
8981   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
8982
8983   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
8984                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
8985                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
8986 }
8987
8988 static void ModifyEditorCounterValue(int counter_id, int new_value)
8989 {
8990   int *counter_value = counterbutton_info[counter_id].value;
8991   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
8992   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
8993
8994   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
8995
8996   if (counter_value != NULL)
8997     *counter_value = gi->textinput.number_value;
8998 }
8999
9000 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
9001 {
9002   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9003   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9004
9005   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
9006
9007   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
9008       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
9009   {
9010     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
9011     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
9012
9013     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
9014     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
9015                  GDI_END);
9016   }
9017 }
9018
9019 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
9020 {
9021   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9022   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9023   int new_index_value = setSelectboxValue(selectbox_id, new_value);
9024
9025   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
9026 }
9027
9028 static void ModifyEditorSelectboxOptions(int selectbox_id,
9029                                          struct ValueTextInfo *options)
9030 {
9031   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9032   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9033
9034   selectbox_info[selectbox_id].options = options;
9035
9036   // set index to zero -- list may be shorter now (correct later, if needed)
9037   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
9038                GDI_SELECTBOX_OPTIONS, options, GDI_END);
9039 }
9040
9041 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
9042 {
9043   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
9044   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9045
9046   drawingarea_info[drawingarea_id].area_xsize = xsize;
9047   drawingarea_info[drawingarea_id].area_ysize = ysize;
9048
9049   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
9050 }
9051
9052 static void ModifyEditorElementList(void)
9053 {
9054   int i;
9055
9056   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
9057     return;
9058
9059   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
9060   {
9061     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
9062     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9063     struct GadgetDesign *gd = &gi->deco.design;
9064     int element = editor_elements[element_shift + i];
9065     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
9066
9067     UnmapGadget(gi);
9068
9069     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
9070
9071     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
9072
9073     MapGadget(gi);
9074   }
9075 }
9076
9077 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
9078 {
9079   int graphic = el2edimg(element);
9080   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
9081
9082   if (pos->x == -1 &&
9083       pos->y == -1)
9084     return;
9085
9086   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
9087 }
9088
9089 static void ModifyDrawingElementButton(int element, int id)
9090 {
9091   struct GadgetInfo *gi = level_editor_gadget[id];
9092   Bitmap *deco_bitmap;
9093   int deco_x, deco_y;
9094   int tile_size = gi->deco.width;
9095
9096   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
9097
9098   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
9099 }
9100
9101 static void PickDrawingElement(int button, int element)
9102 {
9103   struct
9104   {
9105     int *new_element;
9106     struct XYTileSize *pos;
9107     int id;
9108   } de, drawing_elements[] =
9109   {
9110     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
9111     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
9112     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
9113   };
9114
9115   if (button < 1 || button > 3)
9116     return;
9117
9118   if (IS_MM_WALL(element))
9119     element = map_mm_wall_element(element);
9120
9121   de = drawing_elements[button - 1];
9122
9123   *de.new_element = element;    // update global drawing element variable
9124
9125   DrawDrawingElementGraphic(element, de.pos);
9126   ModifyDrawingElementButton(element, de.id);
9127
9128   redraw_mask |= REDRAW_DOOR_1;
9129 }
9130
9131 static void RedrawDrawingElements(void)
9132 {
9133   PickDrawingElement(1, new_element1);
9134   PickDrawingElement(2, new_element2);
9135   PickDrawingElement(3, new_element3);
9136 }
9137
9138 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
9139 {
9140   stick_element_properties_window = FALSE;
9141
9142   SetMainBackgroundImage(IMG_UNDEFINED);
9143   ClearField();
9144
9145   UnmapLevelEditorFieldGadgets();
9146
9147   AdjustDrawingAreaGadgets();
9148   AdjustLevelScrollPosition();
9149   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
9150   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
9151
9152   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
9153
9154   MapMainDrawingArea();
9155
9156   if (remap_toolbox_gadgets)
9157   {
9158     UnmapLevelEditorToolboxCustomGadgets();
9159     MapLevelEditorToolboxDrawingGadgets();
9160   }
9161 }
9162
9163 static void DrawDrawingWindow(void)
9164 {
9165   DrawDrawingWindowExt(TRUE);
9166 }
9167
9168 static int getTabulatorBarWidth(void)
9169 {
9170   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
9171   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
9172
9173   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
9174 }
9175
9176 static int getTabulatorBarHeight(void)
9177 {
9178   return ED_TAB_BAR_HEIGHT;
9179 }
9180
9181 static Pixel getTabulatorBarColor(void)
9182 {
9183   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELINFO_LEVEL];
9184   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
9185   int gd_x = gd->x + gd_gi1->border.width / 2;
9186   int gd_y = gd->y + gd_gi1->height - 1;
9187
9188   return GetPixel(gd->bitmap, gd_x, gd_y);
9189 }
9190
9191 static void DrawLevelInfoTabulatorGadgets(void)
9192 {
9193   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELINFO_LEVEL];
9194   Pixel tab_color = getTabulatorBarColor();
9195   int id_first = ED_TAB_BUTTON_ID_LEVELINFO_FIRST;
9196   int id_last  = ED_TAB_BUTTON_ID_LEVELINFO_LAST;
9197   int i;
9198
9199   for (i = id_first; i <= id_last; i++)
9200   {
9201     int gadget_id = textbutton_info[i].gadget_id;
9202     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9203     boolean active = (i != edit_mode_levelinfo);
9204
9205     // draw background line below tabulator button
9206     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
9207
9208     // draw solid line below inactive tabulator buttons
9209     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
9210       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
9211                     ED_GADGET_TINY_DISTANCE, tab_color);
9212
9213     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
9214     MapTextbuttonGadget(i);
9215   }
9216
9217   // draw little border line below tabulator buttons
9218   if (tab_color != BLACK_PIXEL)                 // black => transparent
9219     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
9220                   ED_GADGET_TINY_DISTANCE,
9221                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
9222 }
9223
9224 static void DrawPropertiesTabulatorGadgets(void)
9225 {
9226   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
9227   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
9228   int gd_x = gd->x + gd_gi1->border.width / 2;
9229   int gd_y = gd->y + gd_gi1->height - 1;
9230   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
9231   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
9232   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
9233   int i;
9234
9235   // draw two config tabulators for player elements
9236   if (IS_PLAYER_ELEMENT(properties_element))
9237     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
9238
9239   // draw two config and one "change" tabulator for custom elements
9240   if (IS_CUSTOM_ELEMENT(properties_element))
9241     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
9242
9243   for (i = id_first; i <= id_last; i++)
9244   {
9245     int gadget_id = textbutton_info[i].gadget_id;
9246     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9247     boolean active = (i != edit_mode_properties);
9248
9249     // use "config 1" and "config 2" instead of "config" for players and CEs
9250     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
9251         (IS_PLAYER_ELEMENT(properties_element) ||
9252          IS_CUSTOM_ELEMENT(properties_element)))
9253       continue;
9254
9255     // draw background line below tabulator button
9256     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
9257
9258     // draw solid line below inactive tabulator buttons
9259     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
9260       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
9261                     ED_GADGET_TINY_DISTANCE, tab_color);
9262
9263     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
9264     MapTextbuttonGadget(i);
9265   }
9266
9267   // draw little border line below tabulator buttons
9268   if (tab_color != BLACK_PIXEL)                 // black => transparent
9269     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
9270                   ED_GADGET_TINY_DISTANCE,
9271                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
9272 }
9273
9274 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
9275 {
9276   DrawText(SX + xpos, SY + ypos, text, font_nr);
9277 }
9278
9279 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
9280                                            int xpos, int ypos)
9281 {
9282   int font_width = getFontWidth(font_nr);
9283   int font_height = getFontHeight(font_nr);
9284   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
9285   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
9286
9287   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
9288                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
9289                       TRUE, FALSE, FALSE);
9290 }
9291
9292 static void DrawLevelInfoLevel(void)
9293 {
9294   int i;
9295
9296   // draw counter gadgets
9297   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
9298     MapCounterButtons(i);
9299
9300   // draw checkbutton gadgets
9301   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
9302     MapCheckbuttonGadget(i);
9303
9304   // draw selectbox gadgets
9305   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
9306     MapSelectboxGadget(i);
9307
9308   // draw text input gadgets
9309   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
9310     MapTextInputGadget(i);
9311 }
9312
9313 static char *getLevelSubdirFromSaveMode(int save_mode)
9314 {
9315   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
9316     return getNewUserLevelSubdir();
9317
9318   return leveldir_current->subdir;
9319 }
9320
9321 static void DrawLevelInfoLevelSet_DirectoryInfo(void)
9322 {
9323   char *directory_text = "Level set directory:";
9324   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
9325   int font1_nr = FONT_TEXT_1;
9326   int font2_nr = FONT_TEXT_2;
9327   int font1_height = getFontHeight(font1_nr);
9328   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
9329   int x = ED_LEVEL_SETTINGS_X(0);
9330   int y = ED_LEVEL_SETTINGS_Y(6);
9331
9332   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
9333   PrintInfoText(directory_name, font2_nr, x, y);
9334 }
9335
9336 static void DrawLevelInfoLevelSet(void)
9337 {
9338   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
9339   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
9340   int i;
9341
9342   // draw counter gadgets
9343   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
9344     MapCounterButtons(i);
9345
9346   // draw checkbutton gadgets
9347   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
9348   {
9349     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
9350         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
9351         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
9352       continue;
9353
9354     MapCheckbuttonGadget(i);
9355   }
9356
9357   // draw selectbox gadgets
9358   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
9359     MapSelectboxGadget(i);
9360
9361   // draw text input gadgets
9362   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
9363     MapTextInputGadget(i);
9364
9365   // draw textbutton gadgets
9366   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
9367
9368   // draw info text
9369   DrawLevelInfoLevelSet_DirectoryInfo();
9370 }
9371
9372 static void DrawLevelInfoEditor(void)
9373 {
9374   int i;
9375
9376   // draw counter gadgets
9377   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
9378     MapCounterButtons(i);
9379
9380   // draw checkbutton gadgets
9381   for (i=ED_CHECKBUTTON_ID_EDITOR_FIRST; i<= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
9382     MapCheckbuttonGadget(i);
9383
9384   // draw radiobutton gadgets
9385   for (i=ED_RADIOBUTTON_ID_EDITOR_FIRST; i<= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
9386     MapRadiobuttonGadget(i);
9387
9388   // draw drawing area
9389   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
9390
9391   // draw textbutton gadgets
9392   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
9393 }
9394
9395 static void DrawLevelInfoWindow(void)
9396 {
9397   char *text = "Global Settings";
9398   int font_nr = FONT_TITLE_1;
9399   struct MenuPosInfo *pos = &editor.settings.headline;
9400   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
9401   int sy = SY + pos->y;
9402
9403   stick_element_properties_window = FALSE;
9404
9405   SetAutomaticNumberOfGemsNeeded();
9406
9407   UnmapLevelEditorFieldGadgets();
9408
9409   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
9410   ClearField();
9411
9412   DrawText(sx, sy, text, font_nr);
9413
9414   DrawLevelInfoTabulatorGadgets();
9415
9416   if (edit_mode_levelinfo == ED_MODE_LEVELINFO_LEVEL)
9417     DrawLevelInfoLevel();
9418   else if (edit_mode_levelinfo == ED_MODE_LEVELINFO_LEVELSET)
9419     DrawLevelInfoLevelSet();
9420   else if (edit_mode_levelinfo == ED_MODE_LEVELINFO_EDITOR)
9421     DrawLevelInfoEditor();
9422 }
9423
9424 static void DrawCustomContentArea(void)
9425 {
9426   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
9427   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
9428   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
9429   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
9430   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
9431   int xoffset = ED_GADGET_SPACE_DISTANCE;
9432
9433   // add distance for potential left text (without drawing area border)
9434   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
9435
9436   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
9437
9438   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
9439 }
9440
9441 static void DrawCustomChangeContentArea(void)
9442 {
9443   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
9444   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
9445   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
9446   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
9447   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
9448   int xoffset = ED_GADGET_SPACE_DISTANCE;
9449
9450   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
9451
9452   MapDrawingArea(id);
9453 }
9454
9455 static void RemoveElementContentArea(int id, int font_height)
9456 {
9457   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9458
9459   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
9460                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
9461                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9462                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
9463                  ED_GADGET_TEXT_DISTANCE + font_height);
9464 }
9465
9466 static void DrawYamYamContentAreas(void)
9467 {
9468   int font_nr = FONT_TEXT_1;
9469   int font_height = getFontHeight(font_nr);
9470   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
9471   int yoffset = (tilesize - font_height) / 2;
9472   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
9473   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
9474   int i;
9475
9476   // display counter to choose number of element content areas
9477   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
9478
9479   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
9480   {
9481     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
9482
9483     if (i < level.num_yamyam_contents)
9484     {
9485       MapDrawingArea(id);
9486     }
9487     else
9488     {
9489       UnmapDrawingArea(id);
9490
9491       // delete content areas in case of reducing number of them
9492       RemoveElementContentArea(id, font_height);
9493     }
9494   }
9495
9496   DrawText(x, y + 0 * tilesize, "content", font_nr);
9497   DrawText(x, y + 1 * tilesize, "when",    font_nr);
9498   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
9499 }
9500
9501 static void DrawMagicBallContentAreas(void)
9502 {
9503   int font_nr = FONT_TEXT_1;
9504   int font_height = getFontHeight(font_nr);
9505   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
9506   int yoffset = (tilesize - font_height) / 2;
9507   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
9508   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
9509   int i;
9510
9511   // display counter to choose number of element content areas
9512   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
9513
9514   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
9515   {
9516     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
9517
9518     if (i < level.num_ball_contents)
9519     {
9520       MapDrawingArea(id);
9521     }
9522     else
9523     {
9524       UnmapDrawingArea(id);
9525
9526       // delete content areas in case of reducing number of them
9527       RemoveElementContentArea(id, font_height);
9528     }
9529   }
9530
9531   DrawText(x, y + 0 * tilesize, "generated", font_nr);
9532   DrawText(x, y + 1 * tilesize, "when",      font_nr);
9533   DrawText(x, y + 2 * tilesize, "active",    font_nr);
9534 }
9535
9536 static void DrawAndroidElementArea(void)
9537 {
9538   int id = ED_DRAWING_ID_ANDROID_CONTENT;
9539   int num_elements = level.num_android_clone_elements;
9540   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9541   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9542   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9543   int xsize = MAX_ANDROID_ELEMENTS;
9544   int ysize = 1;
9545
9546   // display counter to choose number of element areas
9547   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
9548
9549   if (drawingarea_info[id].text_left != NULL)
9550     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9551
9552   UnmapDrawingArea(id);
9553
9554   ModifyEditorDrawingArea(id, num_elements, 1);
9555
9556   // delete content areas in case of reducing number of them
9557   DrawBackground(sx, sy,
9558                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9559                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9560
9561   MapDrawingArea(id);
9562 }
9563
9564 static void DrawGroupElementArea(void)
9565 {
9566   int id = ED_DRAWING_ID_GROUP_CONTENT;
9567   int num_elements = group_element_info.num_elements;
9568   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9569   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9570   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9571   int xsize = MAX_ELEMENTS_IN_GROUP;
9572   int ysize = 1;
9573
9574   if (drawingarea_info[id].text_left != NULL)
9575     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9576
9577   UnmapDrawingArea(id);
9578
9579   ModifyEditorDrawingArea(id, num_elements, 1);
9580
9581   // delete content areas in case of reducing number of them
9582   DrawBackground(sx, sy,
9583                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9584                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9585
9586   MapDrawingArea(id);
9587 }
9588
9589 static void DrawPlayerInitialInventoryArea(int element)
9590 {
9591   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
9592   int player_nr = GET_PLAYER_NR(element);
9593   int num_elements = level.initial_inventory_size[player_nr];
9594   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9595   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9596   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9597   int xsize = MAX_INITIAL_INVENTORY_SIZE;
9598   int ysize = 1;
9599
9600   // determine horizontal position to the right of specified gadget
9601   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
9602     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
9603           ED_DRAWINGAREA_TEXT_DISTANCE);
9604
9605   // determine horizontal offset for leading text
9606   if (drawingarea_info[id].text_left != NULL)
9607     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9608
9609   UnmapDrawingArea(id);
9610
9611   ModifyEditorDrawingArea(id, num_elements, 1);
9612
9613   // delete content areas in case of reducing number of them
9614   DrawBackground(sx, sy,
9615                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9616                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9617
9618   MapDrawingArea(id);
9619 }
9620
9621 static void DrawMMBallContentArea(void)
9622 {
9623   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
9624   int num_elements = level.num_mm_ball_contents;
9625   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9626   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9627   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9628   int xsize = MAX_MM_BALL_CONTENTS;
9629   int ysize = 1;
9630
9631   if (drawingarea_info[id].text_left != NULL)
9632     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9633
9634   UnmapDrawingArea(id);
9635
9636   ModifyEditorDrawingArea(id, num_elements, 1);
9637
9638   // delete content areas in case of reducing number of them
9639   DrawBackground(sx, sy,
9640                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9641                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9642
9643   MapDrawingArea(id);
9644 }
9645
9646 static void DrawEnvelopeTextArea(int envelope_nr)
9647 {
9648   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
9649   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
9650
9651   UnmapGadget(gi);
9652   DrawBackground(gi->x, gi->y, gi->width, gi->height);
9653
9654   if (envelope_nr != -1)
9655     textarea_info[id].value = level.envelope[envelope_nr].text;
9656
9657   ModifyGadget(gi, GDI_AREA_SIZE,
9658                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
9659                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
9660                GDI_END);
9661
9662   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
9663 }
9664
9665 static void DrawPropertiesInfo(void)
9666 {
9667   static struct
9668   {
9669     int value;
9670     char *text;
9671   }
9672   properties[] =
9673   {
9674     // configurable properties
9675
9676     { EP_WALKABLE_OVER,         "- player can walk over it"             },
9677     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
9678     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
9679     { EP_PASSABLE_OVER,         "- player can pass over it"             },
9680     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
9681     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
9682     { EP_PROTECTED,             "- player is protected by it"           },
9683
9684     { EP_DIGGABLE,              "- can be digged away"                  },
9685     { EP_COLLECTIBLE,           "- can be collected"                    },
9686     { EP_DROPPABLE,             "- can be dropped after collecting"     },
9687     { EP_THROWABLE,             "- can be thrown after collecting"      },
9688     { EP_PUSHABLE,              "- can be pushed"                       },
9689
9690     { EP_CAN_FALL,              "- can fall"                            },
9691     { EP_CAN_MOVE,              "- can move"                            },
9692
9693     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
9694 #if 0
9695     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
9696 #endif
9697     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
9698
9699     { EP_SLIPPERY,              "- slippery for falling elements"       },
9700     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
9701
9702     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
9703     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
9704     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
9705     { EP_DONT_TOUCH,            "- deadly when touching"                },
9706
9707     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
9708
9709     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
9710     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
9711     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
9712
9713     { EP_CAN_CHANGE,            "- can change to other element"         },
9714
9715     // pre-defined properties
9716     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
9717     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
9718     { EP_SWITCHABLE,            "- can be switched"                     },
9719 #if 0
9720     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
9721 #endif
9722
9723     { -1,                       NULL                                    }
9724   };
9725   char *filename = getElementDescriptionFilename(properties_element);
9726   char *percentage_text = "In this level: ";
9727   char *properties_text = "Standard properties: ";
9728   char *description_text = "Description:";
9729   char *no_description_text = "No description available.";
9730   char *none_text = "None";
9731   float percentage;
9732   int num_elements_in_level;
9733   int num_standard_properties = 0;
9734   int font1_nr = FONT_TEXT_1;
9735   int font2_nr = FONT_TEXT_2;
9736   int font1_width = getFontWidth(font1_nr);
9737   int font1_height = getFontHeight(font1_nr);
9738   int font2_height = getFontHeight(font2_nr);
9739   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
9740   int font2_yoffset = (font1_height - font2_height) / 2;
9741   int percentage_text_len = strlen(percentage_text) * font1_width;
9742   int properties_text_len = strlen(properties_text) * font1_width;
9743   int xpos = ED_ELEMENT_SETTINGS_X(0);
9744   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
9745   int i, x, y;
9746
9747   if (setup.editor.show_element_token)
9748   {
9749     int font3_nr = FONT_TEXT_3;
9750     int font3_height = getFontHeight(font3_nr);
9751
9752     DrawTextF(xpos, ypos, font3_nr,
9753               "[%s]", element_info[properties_element].token_name);
9754
9755     ypos += 2 * font3_height;
9756   }
9757
9758   // ----- print number of elements / percentage of this element in level
9759
9760   num_elements_in_level = 0;
9761   for (y = 0; y < lev_fieldy; y++)
9762     for (x = 0; x < lev_fieldx; x++)
9763       if (Tile[x][y] == properties_element)
9764         num_elements_in_level++;
9765   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
9766
9767   DrawTextS(xpos, ypos, font1_nr, percentage_text);
9768
9769   if (num_elements_in_level > 0)
9770     DrawTextF(xpos + percentage_text_len, ypos + font2_yoffset, font2_nr,
9771               "%d (%.2f %%)", num_elements_in_level, percentage);
9772   else
9773     DrawTextF(xpos + percentage_text_len, ypos + font2_yoffset, font2_nr,
9774               none_text);
9775
9776   ypos += 2 * MAX(font1_height, font2_height);
9777
9778   // ----- print standard properties of this element
9779
9780   DrawTextS(xpos, ypos, font1_nr, properties_text);
9781
9782   ypos += line1_height;
9783
9784   for (i = 0; properties[i].value != -1; i++)
9785   {
9786     if (!HAS_PROPERTY(properties_element, properties[i].value))
9787       continue;
9788
9789     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
9790
9791     ypos += font2_height;
9792
9793     num_standard_properties++;
9794   }
9795
9796   if (num_standard_properties == 0)
9797   {
9798     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
9799               font2_nr, none_text);
9800
9801     ypos -= (line1_height - font1_height);
9802   }
9803
9804   ypos += MAX(font1_height, font2_height);
9805
9806   // ----- print special description of this element
9807
9808   PrintInfoText(description_text, font1_nr, xpos, ypos);
9809
9810   ypos += line1_height;
9811
9812   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
9813     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
9814 }
9815
9816 #define TEXT_COLLECTING         "Score for collecting"
9817 #define TEXT_SMASHING           "Score for smashing"
9818 #define TEXT_SLURPING           "Score for slurping robot"
9819 #define TEXT_CRACKING           "Score for cracking"
9820 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
9821 #define TEXT_DURATION           "Duration when activated"
9822 #define TEXT_DELAY_ON           "Delay before activating"
9823 #define TEXT_DELAY_OFF          "Delay before deactivating"
9824 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
9825 #define TEXT_DELAY_MOVING       "Delay before moving"
9826 #define TEXT_BALL_DELAY         "Element generation delay"
9827 #define TEXT_MOVE_SPEED         "Speed of android moving"
9828 #define TEXT_CLONE_SPEED        "Speed of android cloning"
9829 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
9830 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
9831 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
9832 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
9833 #define TEXT_TIME_BONUS         "Extra time to solve level"
9834
9835 static struct
9836 {
9837   int element;
9838   int *value;
9839   char *text;
9840 } elements_with_counter[] =
9841 {
9842   { EL_EMERALD,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
9843   { EL_BD_DIAMOND,      &level.score[SC_EMERALD],       TEXT_COLLECTING },
9844   { EL_EMERALD_YELLOW,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
9845   { EL_EMERALD_RED,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
9846   { EL_EMERALD_PURPLE,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
9847   { EL_SP_INFOTRON,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
9848   { EL_DIAMOND,         &level.score[SC_DIAMOND],       TEXT_COLLECTING },
9849   { EL_CRYSTAL,         &level.score[SC_CRYSTAL],       TEXT_COLLECTING },
9850   { EL_PEARL,           &level.score[SC_PEARL],         TEXT_COLLECTING },
9851   { EL_BUG,             &level.score[SC_BUG],           TEXT_SMASHING   },
9852   { EL_BUG_RIGHT,       &level.score[SC_BUG],           TEXT_SMASHING   },
9853   { EL_BUG_UP,          &level.score[SC_BUG],           TEXT_SMASHING   },
9854   { EL_BUG_LEFT,        &level.score[SC_BUG],           TEXT_SMASHING   },
9855   { EL_BUG_DOWN,        &level.score[SC_BUG],           TEXT_SMASHING   },
9856   { EL_BD_BUTTERFLY,    &level.score[SC_BUG],           TEXT_SMASHING   },
9857   { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_BUG],         TEXT_SMASHING   },
9858   { EL_BD_BUTTERFLY_UP,   &level.score[SC_BUG],         TEXT_SMASHING   },
9859   { EL_BD_BUTTERFLY_LEFT, &level.score[SC_BUG],         TEXT_SMASHING   },
9860   { EL_BD_BUTTERFLY_DOWN, &level.score[SC_BUG],         TEXT_SMASHING   },
9861   { EL_SP_ELECTRON,     &level.score[SC_BUG],           TEXT_SMASHING   },
9862   { EL_SPACESHIP,       &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9863   { EL_SPACESHIP_RIGHT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9864   { EL_SPACESHIP_UP,    &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9865   { EL_SPACESHIP_LEFT,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9866   { EL_SPACESHIP_DOWN,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9867   { EL_BD_FIREFLY,      &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9868   { EL_BD_FIREFLY_RIGHT,&level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9869   { EL_BD_FIREFLY_UP,   &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9870   { EL_BD_FIREFLY_LEFT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9871   { EL_BD_FIREFLY_DOWN, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9872   { EL_SP_SNIKSNAK,     &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9873   { EL_YAMYAM,          &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9874   { EL_YAMYAM_LEFT,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9875   { EL_YAMYAM_RIGHT,    &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9876   { EL_YAMYAM_UP,       &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9877   { EL_YAMYAM_DOWN,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9878   { EL_DARK_YAMYAM,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9879   { EL_ROBOT,           &level.score[SC_ROBOT],         TEXT_SMASHING   },
9880   { EL_PACMAN,          &level.score[SC_PACMAN],        TEXT_SMASHING   },
9881   { EL_PACMAN_RIGHT,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
9882   { EL_PACMAN_UP,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
9883   { EL_PACMAN_LEFT,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
9884   { EL_PACMAN_DOWN,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
9885   { EL_NUT,             &level.score[SC_NUT],           TEXT_CRACKING   },
9886   { EL_DYNAMITE,        &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
9887   { EL_EM_DYNAMITE,     &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
9888   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],TEXT_COLLECTING },
9889   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],TEXT_COLLECTING },
9890   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],TEXT_COLLECTING },
9891   { EL_SHIELD_NORMAL,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
9892   { EL_SHIELD_DEADLY,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
9893   { EL_EXTRA_TIME,      &level.extra_time_score,        TEXT_COLLECTING },
9894   { EL_KEY_1,           &level.score[SC_KEY],           TEXT_COLLECTING },
9895   { EL_KEY_2,           &level.score[SC_KEY],           TEXT_COLLECTING },
9896   { EL_KEY_3,           &level.score[SC_KEY],           TEXT_COLLECTING },
9897   { EL_KEY_4,           &level.score[SC_KEY],           TEXT_COLLECTING },
9898   { EL_EM_KEY_1,        &level.score[SC_KEY],           TEXT_COLLECTING },
9899   { EL_EM_KEY_2,        &level.score[SC_KEY],           TEXT_COLLECTING },
9900   { EL_EM_KEY_3,        &level.score[SC_KEY],           TEXT_COLLECTING },
9901   { EL_EM_KEY_4,        &level.score[SC_KEY],           TEXT_COLLECTING },
9902   { EL_EMC_KEY_5,       &level.score[SC_KEY],           TEXT_COLLECTING },
9903   { EL_EMC_KEY_6,       &level.score[SC_KEY],           TEXT_COLLECTING },
9904   { EL_EMC_KEY_7,       &level.score[SC_KEY],           TEXT_COLLECTING },
9905   { EL_EMC_KEY_8,       &level.score[SC_KEY],           TEXT_COLLECTING },
9906   { EL_DC_KEY_WHITE,    &level.score[SC_KEY],           TEXT_COLLECTING },
9907   { EL_MM_KETTLE,       &level.score[SC_EMERALD],       TEXT_COLLECTING },
9908   { EL_DF_CELL,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
9909   { EL_MM_KEY,          &level.score[SC_KEY],           TEXT_COLLECTING },
9910   { EL_MM_LIGHTBALL,    &level.score[SC_ELEM_BONUS],    TEXT_COLLECTING },
9911   { EL_MM_PACMAN,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
9912   { EL_MM_PACMAN_RIGHT, &level.score[SC_PACMAN],        TEXT_SMASHING   },
9913   { EL_MM_PACMAN_UP,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
9914   { EL_MM_PACMAN_LEFT,  &level.score[SC_PACMAN],        TEXT_SMASHING   },
9915   { EL_MM_PACMAN_DOWN,  &level.score[SC_PACMAN],        TEXT_SMASHING   },
9916   { EL_AMOEBA_WET,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
9917   { EL_AMOEBA_DRY,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
9918   { EL_AMOEBA_FULL,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
9919   { EL_BD_AMOEBA,       &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
9920   { EL_EMC_DRIPPER,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
9921   { EL_MAGIC_WALL,      &level.time_magic_wall,         TEXT_DURATION   },
9922   { EL_BD_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
9923   { EL_DC_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
9924   { EL_ROBOT_WHEEL,     &level.time_wheel,              TEXT_DURATION   },
9925
9926   { EL_TIMEGATE_SWITCH,   &level.time_timegate,         TEXT_DURATION   },
9927   { EL_DC_TIMEGATE_SWITCH,&level.time_timegate,         TEXT_DURATION   },
9928   { EL_LIGHT_SWITCH,    &level.time_light,              TEXT_DURATION   },
9929   { EL_LIGHT_SWITCH_ACTIVE, &level.time_light,          TEXT_DURATION   },
9930   { EL_SHIELD_NORMAL,   &level.shield_normal_time,      TEXT_DURATION   },
9931   { EL_SHIELD_DEADLY,   &level.shield_deadly_time,      TEXT_DURATION   },
9932   { EL_EXTRA_TIME,      &level.extra_time,              TEXT_TIME_BONUS },
9933   { EL_TIME_ORB_FULL,   &level.time_orb_time,           TEXT_TIME_BONUS },
9934   { EL_GAME_OF_LIFE,    &level.game_of_life[0],         TEXT_GAME_OF_LIFE_1 },
9935   { EL_GAME_OF_LIFE,    &level.game_of_life[1],         TEXT_GAME_OF_LIFE_2 },
9936   { EL_GAME_OF_LIFE,    &level.game_of_life[2],         TEXT_GAME_OF_LIFE_3 },
9937   { EL_GAME_OF_LIFE,    &level.game_of_life[3],         TEXT_GAME_OF_LIFE_4 },
9938   { EL_BIOMAZE,         &level.biomaze[0],              TEXT_GAME_OF_LIFE_1 },
9939   { EL_BIOMAZE,         &level.biomaze[1],              TEXT_GAME_OF_LIFE_2 },
9940   { EL_BIOMAZE,         &level.biomaze[2],              TEXT_GAME_OF_LIFE_3 },
9941   { EL_BIOMAZE,         &level.biomaze[3],              TEXT_GAME_OF_LIFE_4 },
9942
9943   { EL_EMC_ANDROID,     &level.android_move_time,       TEXT_MOVE_SPEED },
9944   { EL_EMC_ANDROID,     &level.android_clone_time,      TEXT_CLONE_SPEED },
9945   { EL_EMC_MAGIC_BALL,  &level.ball_time,               TEXT_BALL_DELAY },
9946   { EL_EMC_LENSES,      &level.lenses_score,            TEXT_COLLECTING },
9947   { EL_EMC_MAGNIFIER,   &level.magnify_score,           TEXT_COLLECTING },
9948   { EL_SPRING,          &level.slurp_score,             TEXT_SLURPING   },
9949   { EL_SPRING_LEFT,     &level.slurp_score,             TEXT_SLURPING   },
9950   { EL_SPRING_RIGHT,    &level.slurp_score,             TEXT_SLURPING   },
9951   { EL_EMC_LENSES,      &level.lenses_time,             TEXT_DURATION   },
9952   { EL_EMC_MAGNIFIER,   &level.magnify_time,            TEXT_DURATION   },
9953   { EL_MM_FUSE_ACTIVE,  &level.mm_time_fuse,            TEXT_DELAY_OFF  },
9954   { EL_MM_BOMB,         &level.mm_time_bomb,            TEXT_DELAY_EXPLODING },
9955   { EL_MM_GRAY_BALL,    &level.mm_time_ball,            TEXT_DELAY_ON   },
9956   { EL_MM_STEEL_BLOCK,  &level.mm_time_block,           TEXT_DELAY_MOVING },
9957   { EL_MM_WOODEN_BLOCK, &level.mm_time_block,           TEXT_DELAY_MOVING },
9958
9959   { -1,                 NULL,                           NULL            }
9960 };
9961
9962 static boolean checkPropertiesConfig(int element)
9963 {
9964   int i;
9965
9966   if (IS_GEM(element) ||
9967       IS_CUSTOM_ELEMENT(element) ||
9968       IS_GROUP_ELEMENT(element) ||
9969       IS_EMPTY_ELEMENT(element) ||
9970       IS_BALLOON_ELEMENT(element) ||
9971       IS_ENVELOPE(element) ||
9972       IS_MM_ENVELOPE(element) ||
9973       IS_MM_MCDUFFIN(element) ||
9974       IS_DF_LASER(element) ||
9975       IS_PLAYER_ELEMENT(element) ||
9976       HAS_EDITOR_CONTENT(element) ||
9977       CAN_GROW(element) ||
9978       COULD_MOVE_INTO_ACID(element) ||
9979       MAYBE_DONT_COLLIDE_WITH(element) ||
9980       element == EL_SOKOBAN_OBJECT ||
9981       element == EL_SOKOBAN_FIELD_EMPTY ||
9982       element == EL_SOKOBAN_FIELD_FULL)
9983     return TRUE;
9984   else
9985     for (i = 0; elements_with_counter[i].element != -1; i++)
9986       if (elements_with_counter[i].element == element)
9987         return TRUE;
9988
9989   return FALSE;
9990 }
9991
9992 static void SetAutomaticNumberOfGemsNeeded(void)
9993 {
9994   int x, y;
9995
9996   if (!level.auto_count_gems)
9997     return;
9998
9999   level.gems_needed = 0;
10000
10001   for (x = 0; x < lev_fieldx; x++)
10002   {
10003     for (y = 0; y < lev_fieldy; y++)
10004     {
10005       int element = Tile[x][y];
10006
10007       switch (element)
10008       {
10009         case EL_EMERALD:
10010         case EL_EMERALD_YELLOW:
10011         case EL_EMERALD_RED:
10012         case EL_EMERALD_PURPLE:
10013         case EL_BD_DIAMOND:
10014         case EL_WALL_EMERALD:
10015         case EL_WALL_EMERALD_YELLOW:
10016         case EL_WALL_EMERALD_RED:
10017         case EL_WALL_EMERALD_PURPLE:
10018         case EL_WALL_BD_DIAMOND:
10019         case EL_NUT:
10020         case EL_SP_INFOTRON:
10021         case EL_MM_KETTLE:
10022         case EL_DF_CELL:
10023           level.gems_needed++;
10024           break;
10025
10026         case EL_DIAMOND:
10027         case EL_WALL_DIAMOND:
10028           level.gems_needed += 3;
10029           break;
10030
10031         case EL_PEARL:
10032         case EL_WALL_PEARL:
10033           level.gems_needed += 5;
10034           break;
10035
10036         case EL_CRYSTAL:
10037         case EL_WALL_CRYSTAL:
10038           level.gems_needed += 8;
10039           break;
10040
10041         default:
10042           break;
10043       }
10044     }
10045   }
10046
10047   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
10048 }
10049
10050 static void DrawPropertiesConfig(void)
10051 {
10052   boolean draw_footer_line = FALSE;
10053   int max_num_element_counters = 4;
10054   int num_element_counters = 0;
10055   int i;
10056
10057   if (!checkPropertiesConfig(properties_element))
10058   {
10059     int xpos = ED_ELEMENT_SETTINGS_X(0);
10060     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10061
10062     PrintInfoText("No configuration options available.",
10063                   FONT_TEXT_1, xpos, ypos);
10064
10065     return;
10066   }
10067
10068   // check if there are elements where a value can be chosen for
10069   for (i = 0; elements_with_counter[i].element != -1; i++)
10070   {
10071     if (elements_with_counter[i].element == properties_element)
10072     {
10073       int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
10074
10075       counterbutton_info[counter_id].y =
10076         ED_ELEMENT_SETTINGS_YPOS(
10077                 (HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
10078                 (CAN_GROW(properties_element)                ? 1 : 0) +
10079                 (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
10080                 (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
10081                 (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
10082                 num_element_counters);
10083
10084       counterbutton_info[counter_id].value = elements_with_counter[i].value;
10085       counterbutton_info[counter_id].text_right= elements_with_counter[i].text;
10086
10087       if (properties_element == EL_GAME_OF_LIFE ||
10088           properties_element == EL_BIOMAZE)
10089       {
10090         counterbutton_info[counter_id].min_value = 0;   // min neighbours
10091         counterbutton_info[counter_id].max_value = 8;   // max neighbours
10092       }
10093       else
10094       {
10095         // !!! CHANGE THIS FOR CERTAIN ELEMENTS !!!
10096         counterbutton_info[counter_id].min_value = MIN_SCORE;
10097         counterbutton_info[counter_id].max_value = MAX_SCORE;
10098       }
10099
10100       MapCounterButtons(counter_id);
10101
10102       num_element_counters++;
10103       if (num_element_counters >= max_num_element_counters)
10104         break;
10105     }
10106   }
10107
10108   if (HAS_EDITOR_CONTENT(properties_element))
10109   {
10110     // draw stickybutton gadget
10111     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10112
10113     if (IS_AMOEBOID(properties_element))
10114       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
10115     else if (properties_element == EL_YAMYAM ||
10116              properties_element == EL_YAMYAM_LEFT ||
10117              properties_element == EL_YAMYAM_RIGHT ||
10118              properties_element == EL_YAMYAM_UP ||
10119              properties_element == EL_YAMYAM_DOWN)
10120       DrawYamYamContentAreas();
10121     else if (properties_element == EL_EMC_MAGIC_BALL)
10122     {
10123       DrawMagicBallContentAreas();
10124
10125       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
10126       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
10127     }
10128     else if (properties_element == EL_EMC_ANDROID)
10129       DrawAndroidElementArea();
10130     else if (properties_element == EL_MM_GRAY_BALL)
10131     {
10132       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
10133       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
10134
10135       DrawMMBallContentArea();
10136     }
10137   }
10138
10139   if (IS_PLAYER_ELEMENT(properties_element))
10140   {
10141     int player_nr = GET_PLAYER_NR(properties_element);
10142
10143     // these properties can be set for every player individually
10144
10145     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
10146     {
10147       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
10148         &level.start_element[player_nr];
10149       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
10150         &level.artwork_element[player_nr];
10151       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
10152         &level.explosion_element[player_nr];
10153
10154       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
10155         &level.use_start_element[player_nr];
10156       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
10157         &level.use_artwork_element[player_nr];
10158       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
10159         &level.use_explosion_element[player_nr];
10160       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
10161         &level.initial_player_gravity[player_nr];
10162
10163       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
10164         &level.initial_player_stepsize[player_nr];
10165
10166       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
10167       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
10168                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
10169                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
10170       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
10171       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
10172       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
10173       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
10174       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
10175       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
10176       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
10177       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
10178       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
10179       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
10180       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
10181
10182       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
10183       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
10184       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
10185
10186       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
10187     }
10188     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
10189     {
10190       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
10191         &level.initial_inventory_content[player_nr][0];
10192
10193       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
10194         &level.initial_inventory_size[player_nr];
10195
10196       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
10197         &level.use_initial_inventory[player_nr];
10198
10199       // draw checkbutton gadgets
10200       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
10201       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
10202       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
10203
10204       // draw counter gadgets
10205       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
10206
10207       // draw drawing area gadgets
10208       DrawPlayerInitialInventoryArea(properties_element);
10209     }
10210   }
10211
10212   if (IS_GEM(properties_element))
10213     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
10214
10215   if (properties_element == EL_EM_DYNAMITE)
10216     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
10217
10218   if (COULD_MOVE_INTO_ACID(properties_element) &&
10219       !IS_PLAYER_ELEMENT(properties_element) &&
10220       (!IS_CUSTOM_ELEMENT(properties_element) ||
10221        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
10222   {
10223     // set position for checkbutton for "can move into acid"
10224     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
10225       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
10226     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
10227       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
10228                                IS_BALLOON_ELEMENT(properties_element) ||
10229                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
10230
10231     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
10232   }
10233
10234   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
10235     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
10236
10237   if (properties_element == EL_SPRING ||
10238       properties_element == EL_SPRING_LEFT ||
10239       properties_element == EL_SPRING_RIGHT)
10240     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
10241
10242   if (properties_element == EL_TIME_ORB_FULL)
10243     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
10244
10245   if (properties_element == EL_GAME_OF_LIFE ||
10246       properties_element == EL_BIOMAZE)
10247     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
10248
10249   if (CAN_GROW(properties_element))
10250   {
10251     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
10252       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
10253
10254     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
10255   }
10256
10257   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
10258     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
10259
10260   if (properties_element == EL_SOKOBAN_OBJECT)
10261     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
10262
10263   if (properties_element == EL_SOKOBAN_OBJECT ||
10264       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
10265       properties_element == EL_SOKOBAN_FIELD_FULL)
10266   {
10267     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
10268       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
10269                                0 : 1);
10270
10271     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
10272   }
10273
10274   if (IS_BALLOON_ELEMENT(properties_element))
10275     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
10276
10277   if (IS_ENVELOPE(properties_element) ||
10278       IS_MM_ENVELOPE(properties_element))
10279   {
10280     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
10281     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
10282     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
10283     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
10284     int envelope_nr = ENVELOPE_NR(properties_element);
10285
10286     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
10287     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
10288
10289     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
10290     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
10291
10292     // display counter to choose size of envelope text area
10293     MapCounterButtons(counter1_id);
10294     MapCounterButtons(counter2_id);
10295
10296     // display checkbuttons to choose auto-wrap and alignment properties
10297     MapCheckbuttonGadget(button1_id);
10298     MapCheckbuttonGadget(button2_id);
10299
10300     DrawEnvelopeTextArea(envelope_nr);
10301   }
10302
10303   if (IS_MM_MCDUFFIN(properties_element))
10304   {
10305     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
10306     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
10307     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
10308   }
10309
10310   if (IS_DF_LASER(properties_element))
10311   {
10312     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
10313     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
10314     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
10315   }
10316
10317   if (IS_CUSTOM_ELEMENT(properties_element))
10318   {
10319     // draw stickybutton gadget
10320     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10321
10322     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
10323     {
10324       // draw checkbutton gadgets
10325       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
10326            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
10327         MapCheckbuttonGadget(i);
10328
10329       // draw counter gadgets
10330       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
10331            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
10332         MapCounterButtons(i);
10333
10334       // draw selectbox gadgets
10335       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
10336            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
10337         MapSelectboxGadget(i);
10338
10339       // draw textbutton gadgets
10340       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10341
10342       // draw text input gadgets
10343       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
10344
10345       // draw drawing area gadgets
10346       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10347
10348       draw_footer_line = TRUE;
10349     }
10350     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
10351     {
10352       // draw checkbutton gadgets
10353       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
10354            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
10355         MapCheckbuttonGadget(i);
10356
10357       // draw counter gadgets
10358       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
10359            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
10360         MapCounterButtons(i);
10361
10362       // draw selectbox gadgets
10363       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
10364            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
10365         MapSelectboxGadget(i);
10366
10367       // draw drawing area gadgets
10368       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
10369       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
10370       DrawCustomContentArea();
10371     }
10372   }
10373   else if (IS_GROUP_ELEMENT(properties_element))
10374   {
10375     // draw stickybutton gadget
10376     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10377
10378     // draw checkbutton gadgets
10379     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
10380     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
10381
10382     // draw counter gadgets
10383     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
10384
10385     // draw selectbox gadgets
10386     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
10387
10388     // draw textbutton gadgets
10389     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10390
10391     // draw drawing area gadgets
10392     DrawGroupElementArea();
10393
10394     // draw text input gadgets
10395     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
10396
10397     // draw drawing area gadgets
10398     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10399
10400     draw_footer_line = TRUE;
10401   }
10402   else if (IS_EMPTY_ELEMENT(properties_element))
10403   {
10404     // draw stickybutton gadget
10405     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10406
10407     // draw checkbutton gadgets
10408     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
10409     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
10410
10411     // draw textbutton gadgets
10412     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10413
10414     // draw drawing area gadgets
10415     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10416
10417     draw_footer_line = TRUE;
10418   }
10419
10420   // draw little footer border line above CE/GE use/save template gadgets
10421   if (draw_footer_line)
10422   {
10423     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10424     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10425     int gd_x = gd->x + gd_gi1->border.width / 2;
10426     int gd_y = gd->y + gd_gi1->height - 1;
10427     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10428
10429     if (tab_color != BLACK_PIXEL)               // black => transparent
10430       FillRectangle(drawto,
10431                     SX + ED_ELEMENT_SETTINGS_X(0),
10432                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
10433                     ED_TAB_BAR_HEIGHT,
10434                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10435   }
10436 }
10437
10438 static void DrawPropertiesChangeDrawingAreas(void)
10439 {
10440   if (IS_CUSTOM_ELEMENT(properties_element))
10441   {
10442     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
10443     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
10444     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
10445
10446     DrawCustomChangeContentArea();
10447   }
10448
10449   redraw_mask |= REDRAW_FIELD;
10450 }
10451
10452 static void DrawPropertiesChange(void)
10453 {
10454   int i;
10455
10456   // needed to initially set selectbox options for special action options
10457   setSelectboxSpecialActionOptions();
10458
10459   // draw stickybutton gadget
10460   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10461
10462   // draw checkbutton gadgets
10463   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
10464        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
10465     MapCheckbuttonGadget(i);
10466
10467   // draw counter gadgets
10468   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
10469        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
10470     MapCounterButtons(i);
10471
10472   // draw selectbox gadgets
10473   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
10474        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
10475     MapSelectboxGadget(i);
10476
10477   // draw textbutton gadgets
10478   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
10479        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
10480     MapTextbuttonGadget(i);
10481
10482   // draw graphicbutton gadgets
10483   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
10484        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
10485     MapGraphicbuttonGadget(i);
10486
10487   // draw drawing area gadgets
10488   DrawPropertiesChangeDrawingAreas();
10489 }
10490
10491 static void DrawEditorElementAnimation(int x, int y)
10492 {
10493   int graphic = el2img(properties_element);
10494   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
10495                custom_element.ce_value_fixed_initial :
10496                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
10497                custom_element.collect_score_initial : FrameCounter);
10498
10499   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
10500 }
10501
10502 static void DrawEditorElementName(int x, int y, int font_nr)
10503 {
10504   char *element_name = getElementInfoText(properties_element);
10505   int font_width = getFontWidth(font_nr);
10506   int font_height = getFontHeight(font_nr);
10507   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
10508   int max_chars_per_line = max_text_width / font_width;
10509
10510   if (strlen(element_name) <= max_chars_per_line)
10511     DrawTextS(x, y, font_nr, element_name);
10512   else
10513   {
10514     char buffer[max_chars_per_line + 1];
10515     int next_pos = max_chars_per_line;
10516
10517     strncpy(buffer, element_name, max_chars_per_line);
10518     buffer[max_chars_per_line] = '\0';
10519
10520     if (element_name[max_chars_per_line] == ' ')
10521       next_pos++;
10522     else
10523     {
10524       int i;
10525
10526       for (i = max_chars_per_line - 1; i >= 0; i--)
10527         if (buffer[i] == ' ')
10528           break;
10529
10530       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
10531       {
10532         buffer[i] = '\0';
10533         next_pos = i + 1;
10534       }
10535     }
10536
10537     DrawTextS(x, y - font_height / 2, font_nr, buffer);
10538
10539     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
10540     buffer[max_chars_per_line] = '\0';
10541
10542     DrawTextS(x, y + font_height / 2, font_nr, buffer);
10543   }
10544 }
10545
10546 static void DrawPropertiesWindow(void)
10547 {
10548   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
10549   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
10550   int border_size = gd->border_size;
10551   int font_nr = FONT_TEXT_1;
10552   int font_height = getFontHeight(font_nr);
10553   int xoffset = TILEX + element_border + 3 * border_size;
10554   int yoffset = (TILEY - font_height) / 2;
10555   int x1 = editor.settings.element_graphic.x + element_border;
10556   int y1 = editor.settings.element_graphic.y + element_border;
10557   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
10558             editor.settings.element_name.x);
10559   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
10560             editor.settings.element_name.y);
10561   char *text = "Element Settings";
10562   int font2_nr = FONT_TITLE_1;
10563   struct MenuPosInfo *pos = &editor.settings.headline;
10564   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
10565   int sy = SY + pos->y;
10566
10567   stick_element_properties_window = FALSE;
10568
10569   // make sure that previous properties edit mode exists for this element
10570   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
10571       !IS_CUSTOM_ELEMENT(properties_element))
10572     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
10573
10574   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
10575       !IS_PLAYER_ELEMENT(properties_element) &&
10576       !IS_CUSTOM_ELEMENT(properties_element))
10577     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
10578
10579   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
10580       (IS_PLAYER_ELEMENT(properties_element) ||
10581        IS_CUSTOM_ELEMENT(properties_element)))
10582     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
10583
10584   CopyElementPropertiesToEditor(properties_element);
10585
10586   UnmapLevelEditorFieldGadgets();
10587   UnmapLevelEditorToolboxDrawingGadgets();
10588   UnmapLevelEditorToolboxCustomGadgets();
10589
10590   if (IS_CUSTOM_ELEMENT(properties_element) ||
10591       IS_GROUP_ELEMENT(properties_element))
10592     MapLevelEditorToolboxCustomGadgets();
10593
10594   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10595   ClearField();
10596
10597   DrawText(sx, sy, text, font2_nr);
10598
10599   FrameCounter = 0;     // restart animation frame counter
10600
10601   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
10602   DrawEditorElementAnimation(SX + x1, SY + y1);
10603   DrawEditorElementName(x2, y2, font_nr);
10604
10605   DrawPropertiesTabulatorGadgets();
10606
10607   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
10608     DrawPropertiesInfo();
10609   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
10610     DrawPropertiesChange();
10611   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
10612     DrawPropertiesConfig();
10613 }
10614
10615 static void DrawPaletteWindow(void)
10616 {
10617   int i;
10618
10619   UnmapLevelEditorFieldGadgets();
10620
10621   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10622   ClearField();
10623
10624   // map buttons to select elements
10625   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
10626     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
10627   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
10628   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
10629   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
10630 }
10631
10632 static void UpdateCustomElementGraphicGadgets(void)
10633 {
10634   int i;
10635
10636   InitElementPropertiesGfxElement();
10637
10638   ModifyEditorElementList();
10639   RedrawDrawingElements();
10640
10641   // force redraw of all mapped drawing area gadgets
10642   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
10643   {
10644     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
10645
10646     if (gi->mapped)
10647       MapDrawingArea(i);
10648   }
10649 }
10650
10651 static int getOpenDirectionFromTube(int element)
10652 {
10653   switch (element)
10654   {
10655     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
10656     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
10657     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
10658     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
10659     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
10660     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
10661     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
10662     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
10663     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
10664     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
10665     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
10666   }
10667
10668   return MV_NONE;
10669 }
10670
10671 static int getTubeFromOpenDirection(int direction)
10672 {
10673   switch (direction)
10674   {
10675     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
10676     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
10677     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
10678     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
10679     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
10680     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
10681     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
10682     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
10683     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
10684     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
10685     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
10686
10687     // if only one direction, fall back to simple tube with that direction
10688     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
10689     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
10690     case (MV_UP):                       return EL_TUBE_VERTICAL;
10691     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
10692   }
10693
10694   return EL_EMPTY;
10695 }
10696
10697 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
10698 {
10699   int element_new = getTubeFromOpenDirection(direction);
10700
10701   return (element_new != EL_EMPTY ? element_new : element_old);
10702 }
10703
10704 static int getOpenDirectionFromBelt(int element)
10705 {
10706   int belt_dir = getBeltDirFromBeltElement(element);
10707
10708   return (belt_dir == MV_LEFT ? MV_RIGHT :
10709           belt_dir == MV_RIGHT ? MV_LEFT :
10710           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
10711 }
10712
10713 static int getBeltFromNrAndOpenDirection(int nr, int direction)
10714 {
10715   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
10716                   direction == MV_RIGHT ? MV_LEFT :
10717                   direction == MV_HORIZONTAL ? MV_NONE : direction);
10718
10719   if (direction == MV_NONE)
10720     return EL_EMPTY;
10721
10722   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
10723 }
10724
10725 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
10726                                                  int element_old)
10727 {
10728   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
10729
10730   return (element_new != EL_EMPTY ? element_new : element_old);
10731 }
10732
10733 static int getOpenDirectionFromPool(int element)
10734 {
10735   switch (element)
10736   {
10737     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
10738     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
10739     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
10740     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
10741     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
10742     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
10743   }
10744
10745   return MV_NONE;
10746 }
10747
10748 static int getPoolFromOpenDirection(int direction)
10749 {
10750   switch (direction)
10751   {
10752     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
10753     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
10754     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
10755     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
10756     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
10757     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
10758   }
10759
10760   return EL_EMPTY;
10761 }
10762
10763 static int getPoolFromOpenDirectionExt(int direction, int help_element)
10764 {
10765   int element = getPoolFromOpenDirection(direction);
10766   int help_direction = getOpenDirectionFromPool(help_element);
10767
10768   if (element == EL_EMPTY)
10769   {
10770     int help_direction_vertical = help_direction & MV_VERTICAL;
10771
10772     element = getPoolFromOpenDirection(direction | help_direction_vertical);
10773   }
10774
10775   if (element == EL_EMPTY)
10776   {
10777     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
10778
10779     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
10780   }
10781
10782   return element;
10783 }
10784
10785 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
10786 {
10787   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
10788
10789   return (element_new != EL_EMPTY ? element_new : element_old);
10790 }
10791
10792 static int getOpenDirectionFromPillar(int element)
10793 {
10794   switch (element)
10795   {
10796     case EL_EMC_WALL_1:                 return (MV_DOWN);
10797     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
10798     case EL_EMC_WALL_3:                 return (MV_UP);
10799   }
10800
10801   return MV_NONE;
10802 }
10803
10804 static int getPillarFromOpenDirection(int direction)
10805 {
10806   switch (direction)
10807   {
10808     case (MV_DOWN):                     return EL_EMC_WALL_1;
10809     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
10810     case (MV_UP):                       return EL_EMC_WALL_3;
10811   }
10812
10813   return EL_EMPTY;
10814 }
10815
10816 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
10817 {
10818   int element_new = getPillarFromOpenDirection(direction);
10819
10820   return (element_new != EL_EMPTY ? element_new : element_old);
10821 }
10822
10823 static int getOpenDirectionFromSteel2(int element)
10824 {
10825   switch (element)
10826   {
10827     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
10828     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
10829     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
10830     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
10831     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
10832     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
10833     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
10834     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
10835   }
10836
10837   return MV_NONE;
10838 }
10839
10840 static int getSteel2FromOpenDirection(int direction)
10841 {
10842   switch (direction)
10843   {
10844     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
10845     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
10846     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
10847     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
10848     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
10849     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
10850     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
10851     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
10852   }
10853
10854   return EL_EMPTY;
10855 }
10856
10857 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
10858 {
10859   int element_new = getSteel2FromOpenDirection(direction);
10860
10861   return (element_new != EL_EMPTY ? element_new : element_old);
10862 }
10863
10864 static int getOpenDirectionFromChip(int element)
10865 {
10866   switch (element)
10867   {
10868     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
10869     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
10870     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
10871     case EL_SP_CHIP_TOP:                return (MV_DOWN);
10872     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
10873   }
10874
10875   return MV_NONE;
10876 }
10877
10878 static int getChipFromOpenDirection(int direction)
10879 {
10880   switch (direction)
10881   {
10882     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
10883     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
10884     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
10885     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
10886     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
10887   }
10888
10889   return EL_EMPTY;
10890 }
10891
10892 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
10893 {
10894   int element_new = getChipFromOpenDirection(direction);
10895
10896   return (element_new != EL_EMPTY ? element_new : element_old);
10897 }
10898
10899 static int getClosedTube(int x, int y)
10900 {
10901   struct XY *xy = xy_directions;
10902   int element_old = IntelliDrawBuffer[x][y];
10903   int direction_old = getOpenDirectionFromTube(element_old);
10904   int direction_new = MV_NONE;
10905   int i;
10906
10907   for (i = 0; i < NUM_DIRECTIONS; i++)
10908   {
10909     int xx = x + xy[i].x;
10910     int yy = y + xy[i].y;
10911     int dir = MV_DIR_FROM_BIT(i);
10912     int dir_opposite = MV_DIR_OPPOSITE(dir);
10913
10914     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
10915         (direction_old & dir) &&
10916         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
10917       direction_new |= dir;
10918   }
10919
10920   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
10921 }
10922
10923 static int getClosedBelt(int x, int y)
10924 {
10925   struct XY *xy = xy_directions;
10926   int element_old = IntelliDrawBuffer[x][y];
10927   int nr = getBeltNrFromBeltElement(element_old);
10928   int direction_old = getOpenDirectionFromBelt(element_old);
10929   int direction_new = MV_NONE;
10930   int i;
10931
10932   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
10933   {
10934     int xx = x + xy[i].x;
10935     int yy = y + xy[i].y;
10936     int dir = MV_DIR_FROM_BIT(i);
10937     int dir_opposite = MV_DIR_OPPOSITE(dir);
10938
10939     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
10940         (direction_old & dir) &&
10941         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
10942       direction_new |= dir;
10943   }
10944
10945   return getBeltFromNrAndOpenDirection(nr, direction_new);
10946 }
10947
10948 static int getClosedPool(int x, int y)
10949 {
10950   struct XY *xy = xy_directions;
10951   int element_old = IntelliDrawBuffer[x][y];
10952   int direction_old = getOpenDirectionFromPool(element_old);
10953   int direction_new = MV_NONE;
10954   int i;
10955
10956   for (i = 0; i < NUM_DIRECTIONS; i++)
10957   {
10958     int xx = x + xy[i].x;
10959     int yy = y + xy[i].y;
10960     int dir = MV_DIR_FROM_BIT(i);
10961     int dir_opposite = MV_DIR_OPPOSITE(dir);
10962
10963     if (IN_LEV_FIELD(xx, yy) &&
10964         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
10965         (direction_old & dir) &&
10966         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
10967       direction_new |= dir;
10968   }
10969
10970   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
10971 }
10972
10973 static int getClosedPillar(int x, int y)
10974 {
10975   struct XY *xy = xy_directions;
10976   int element_old = IntelliDrawBuffer[x][y];
10977   int direction_old = getOpenDirectionFromPillar(element_old);
10978   int direction_new = MV_NONE;
10979   int i;
10980
10981   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
10982   {
10983     int xx = x + xy[i].x;
10984     int yy = y + xy[i].y;
10985     int dir = MV_DIR_FROM_BIT(i);
10986     int dir_opposite = MV_DIR_OPPOSITE(dir);
10987
10988     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
10989         (direction_old & dir) &&
10990         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
10991       direction_new |= dir;
10992   }
10993
10994   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
10995 }
10996
10997 static int getClosedSteel2(int x, int y)
10998 {
10999   struct XY *xy = xy_directions;
11000   int element_old = IntelliDrawBuffer[x][y];
11001   int direction_old = getOpenDirectionFromSteel2(element_old);
11002   int direction_new = MV_NONE;
11003   int i;
11004
11005   for (i = 0; i < NUM_DIRECTIONS; i++)
11006   {
11007     int xx = x + xy[i].x;
11008     int yy = y + xy[i].y;
11009     int dir = MV_DIR_FROM_BIT(i);
11010     int dir_opposite = MV_DIR_OPPOSITE(dir);
11011
11012     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
11013         (direction_old & dir) &&
11014         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11015       direction_new |= dir;
11016   }
11017
11018   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
11019 }
11020
11021 static int getClosedChip(int x, int y)
11022 {
11023   struct XY *xy = xy_directions;
11024   int element_old = IntelliDrawBuffer[x][y];
11025   int direction_old = getOpenDirectionFromChip(element_old);
11026   int direction_new = MV_NONE;
11027   int i;
11028
11029   for (i = 0; i < NUM_DIRECTIONS; i++)
11030   {
11031     int xx = x + xy[i].x;
11032     int yy = y + xy[i].y;
11033     int dir = MV_DIR_FROM_BIT(i);
11034     int dir_opposite = MV_DIR_OPPOSITE(dir);
11035
11036     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
11037         (direction_old & dir) &&
11038         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11039       direction_new |= dir;
11040   }
11041
11042   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
11043 }
11044
11045 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
11046                                 boolean change_level)
11047 {
11048   int sx = x - level_xpos;
11049   int sy = y - level_ypos;
11050   int old_element = Tile[x][y];
11051   int new_element = element;
11052   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
11053   boolean draw_masked = FALSE;
11054
11055   if (IS_MM_WALL_EDITOR(element))
11056   {
11057     element = map_mm_wall_element_editor(element) | new_bitmask;
11058
11059     if (IS_MM_WALL(old_element))
11060       element |= MM_WALL_BITS(old_element);
11061
11062     if (!change_level)
11063       draw_masked = TRUE;
11064   }
11065   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
11066   {
11067     int element_changed = old_element & ~new_bitmask;
11068
11069     if (MM_WALL_BITS(element_changed) != 0)
11070       element = element_changed;
11071   }
11072
11073   IntelliDrawBuffer[x][y] = element;
11074
11075   if (change_level)
11076     Tile[x][y] = element;
11077
11078   if (IN_ED_FIELD(sx, sy))
11079   {
11080     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
11081       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
11082     else if (draw_masked)
11083       DrawEditorElementThruMask(sx, sy, element);
11084     else
11085       DrawEditorElement(sx, sy, element);
11086   }
11087 }
11088
11089 static void SetElementSimple(int x, int y, int element, boolean change_level)
11090 {
11091   SetElementSimpleExt(x, y, 0, 0, element, change_level);
11092 }
11093
11094 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
11095                                            int x2, int y2, int *element2,
11096                                            int (*close_function)(int, int),
11097                                            boolean change_level)
11098 {
11099   // set neighbour elements to newly determined connections
11100   SetElementSimple(x1, y1, *element1, change_level);
11101   SetElementSimple(x2, y2, *element2, change_level);
11102
11103   // remove all open connections of neighbour elements
11104   *element1 = close_function(x1, y1);
11105   *element2 = close_function(x2, y2);
11106
11107   // set neighbour elements to new, minimized connections
11108   SetElementSimple(x1, y1, *element1, change_level);
11109   SetElementSimple(x2, y2, *element2, change_level);
11110 }
11111
11112 static void SetElementIntelliDraw(int x, int y, int new_element,
11113                                   boolean change_level, int button)
11114 {
11115   struct XY *xy = xy_directions;
11116   static int last_x = -1;
11117   static int last_y = -1;
11118
11119   if (new_element == EL_UNDEFINED)
11120   {
11121     last_x = -1;
11122     last_y = -1;
11123
11124     return;
11125   }
11126
11127   int old_element = IntelliDrawBuffer[x][y];
11128
11129   if (IS_TUBE(new_element))
11130   {
11131     int last_element_new = EL_UNDEFINED;
11132     int direction = MV_NONE;
11133     int i;
11134
11135     // if old element is of same kind, keep all existing directions
11136     if (IS_TUBE(old_element))
11137       direction |= getOpenDirectionFromTube(old_element);
11138
11139     for (i = 0; i < NUM_DIRECTIONS; i++)
11140     {
11141       int xx = x + xy[i].x;
11142       int yy = y + xy[i].y;
11143
11144       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11145           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
11146       {
11147         int dir = MV_DIR_FROM_BIT(i);
11148         int dir_opposite = MV_DIR_OPPOSITE(dir);
11149         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11150         int last_direction_old = getOpenDirectionFromTube(last_element_old);
11151         int last_direction_new = last_direction_old | dir_opposite;
11152
11153         last_element_new = getTubeFromOpenDirection(last_direction_new);
11154
11155         direction |= dir;
11156       }
11157     }
11158
11159     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
11160
11161     if (last_element_new != EL_UNDEFINED)
11162       MergeAndCloseNeighbourElements(x, y, &new_element,
11163                                      last_x, last_y, &last_element_new,
11164                                      getClosedTube, change_level);
11165   }
11166   else if (IS_BELT(new_element))
11167   {
11168     int belt_nr = getBeltNrFromBeltElement(new_element);
11169     int last_element_new = EL_UNDEFINED;
11170     int direction = MV_NONE;
11171     int i;
11172
11173     // if old element is of same kind, keep all existing directions
11174     if (IS_BELT(old_element))
11175       direction |= getOpenDirectionFromBelt(old_element);
11176
11177     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
11178     {
11179       int xx = x + xy[i].x;
11180       int yy = y + xy[i].y;
11181
11182       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11183           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
11184       {
11185         int dir = MV_DIR_FROM_BIT(i);
11186         int dir_opposite = MV_DIR_OPPOSITE(dir);
11187         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11188         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
11189         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
11190         int last_direction_new = last_direction_old | dir_opposite;
11191
11192         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
11193                                                          last_direction_new);
11194         direction |= dir;
11195       }
11196     }
11197
11198     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
11199                                                         new_element);
11200     if (last_element_new != EL_UNDEFINED)
11201       MergeAndCloseNeighbourElements(x, y, &new_element,
11202                                      last_x, last_y, &last_element_new,
11203                                      getClosedBelt, change_level);
11204   }
11205   else if (IS_ACID_POOL_OR_ACID(new_element))
11206   {
11207     int last_element_new = EL_UNDEFINED;
11208     int direction = MV_NONE;
11209     int i;
11210
11211     // if old element is of same kind, keep all existing directions
11212     if (IS_ACID_POOL_OR_ACID(old_element))
11213       direction |= getOpenDirectionFromPool(old_element);
11214
11215     for (i = 0; i < NUM_DIRECTIONS; i++)
11216     {
11217       int xx = x + xy[i].x;
11218       int yy = y + xy[i].y;
11219
11220       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11221           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
11222       {
11223         int dir = MV_DIR_FROM_BIT(i);
11224         int dir_opposite = MV_DIR_OPPOSITE(dir);
11225         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11226         int last_direction_old = getOpenDirectionFromPool(last_element_old);
11227         int last_direction_new = last_direction_old | dir_opposite;
11228
11229         last_element_new = getPoolFromOpenDirection(last_direction_new);
11230
11231         direction |= dir;
11232       }
11233     }
11234
11235     // special corrections needed for intuitively correct acid pool drawing
11236     if (last_element_new == EL_EMPTY)
11237       last_element_new = new_element;
11238     else if (last_element_new != EL_UNDEFINED)
11239       new_element = last_element_new;
11240
11241     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
11242
11243     if (last_element_new != EL_UNDEFINED)
11244       MergeAndCloseNeighbourElements(x, y, &new_element,
11245                                      last_x, last_y, &last_element_new,
11246                                      getClosedPool, change_level);
11247   }
11248   else if (IS_EMC_PILLAR(new_element))
11249   {
11250     int last_element_new = EL_UNDEFINED;
11251     int direction = MV_NONE;
11252     int i;
11253
11254     // if old element is of same kind, keep all existing directions
11255     if (IS_EMC_PILLAR(old_element))
11256       direction |= getOpenDirectionFromPillar(old_element);
11257
11258     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
11259     {
11260       int xx = x + xy[i].x;
11261       int yy = y + xy[i].y;
11262
11263       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11264           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
11265       {
11266         int dir = MV_DIR_FROM_BIT(i);
11267         int dir_opposite = MV_DIR_OPPOSITE(dir);
11268         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11269         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
11270         int last_direction_new = last_direction_old | dir_opposite;
11271
11272         last_element_new = getPillarFromOpenDirection(last_direction_new);
11273
11274         direction |= dir;
11275       }
11276     }
11277
11278     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
11279
11280     if (last_element_new != EL_UNDEFINED)
11281       MergeAndCloseNeighbourElements(x, y, &new_element,
11282                                      last_x, last_y, &last_element_new,
11283                                      getClosedPillar, change_level);
11284   }
11285   else if (IS_DC_STEELWALL_2(new_element))
11286   {
11287     int last_element_new = EL_UNDEFINED;
11288     int direction = MV_NONE;
11289     int i;
11290
11291     // if old element is of same kind, keep all existing directions
11292     if (IS_DC_STEELWALL_2(old_element))
11293       direction |= getOpenDirectionFromSteel2(old_element);
11294
11295     for (i = 0; i < NUM_DIRECTIONS; i++)
11296     {
11297       int xx = x + xy[i].x;
11298       int yy = y + xy[i].y;
11299
11300       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11301           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
11302       {
11303         int dir = MV_DIR_FROM_BIT(i);
11304         int dir_opposite = MV_DIR_OPPOSITE(dir);
11305         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11306         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
11307         int last_direction_new = last_direction_old | dir_opposite;
11308
11309         last_element_new = getSteel2FromOpenDirection(last_direction_new);
11310
11311         direction |= dir;
11312       }
11313     }
11314
11315     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
11316
11317     if (last_element_new != EL_UNDEFINED)
11318       MergeAndCloseNeighbourElements(x, y, &new_element,
11319                                      last_x, last_y, &last_element_new,
11320                                      getClosedSteel2, change_level);
11321   }
11322   else if (IS_SP_CHIP(new_element))
11323   {
11324     int last_element_new = EL_UNDEFINED;
11325     int direction = MV_NONE;
11326     int i;
11327
11328     // (do not keep existing directions, regardless of kind of old element)
11329
11330     for (i = 0; i < NUM_DIRECTIONS; i++)
11331     {
11332       int xx = x + xy[i].x;
11333       int yy = y + xy[i].y;
11334
11335       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11336           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
11337       {
11338         int dir = MV_DIR_FROM_BIT(i);
11339         int dir_opposite = MV_DIR_OPPOSITE(dir);
11340         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11341         int last_direction_old = getOpenDirectionFromChip(last_element_old);
11342         int last_direction_new = last_direction_old | dir_opposite;
11343
11344         if (last_direction_old == MV_NONE)
11345         {
11346           last_element_new = getChipFromOpenDirection(last_direction_new);
11347           direction |= dir;
11348         }
11349         else if (last_direction_old & (dir | dir_opposite))
11350         {
11351           direction |= MV_DIR_OPPOSITE(last_direction_old);
11352         }
11353         else
11354         {
11355           direction |= MV_DIR_OPPOSITE(dir);
11356         }
11357       }
11358     }
11359
11360     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
11361
11362     if (last_element_new != EL_UNDEFINED)
11363       MergeAndCloseNeighbourElements(x, y, &new_element,
11364                                      last_x, last_y, &last_element_new,
11365                                      getClosedChip, change_level);
11366   }
11367   else if (IS_SP_HARDWARE_BASE(new_element))
11368   {
11369     int nr = GetSimpleRandom(6);
11370
11371     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
11372                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
11373                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
11374                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
11375                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
11376   }
11377   else if (new_element == EL_SP_HARDWARE_GREEN ||
11378            new_element == EL_SP_HARDWARE_BLUE ||
11379            new_element == EL_SP_HARDWARE_RED)
11380   {
11381     int nr = GetSimpleRandom(3);
11382
11383     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
11384                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
11385   }
11386   else if (IS_GROUP_ELEMENT(new_element))
11387   {
11388     boolean connected_drawing = FALSE;
11389     int i;
11390
11391     for (i = 0; i < NUM_DIRECTIONS; i++)
11392     {
11393       int xx = x + xy[i].x;
11394       int yy = y + xy[i].y;
11395
11396       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11397           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
11398         connected_drawing = TRUE;
11399     }
11400
11401     if (!connected_drawing)
11402       ResolveGroupElement(new_element);
11403
11404     new_element = GetElementFromGroupElement(new_element);
11405   }
11406   else if (IS_BELT_SWITCH(old_element))
11407   {
11408     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
11409     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
11410
11411     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
11412                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
11413
11414     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
11415   }
11416   else
11417   {
11418     static int swappable_elements[][2] =
11419     {
11420       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
11421       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
11422       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
11423       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
11424       { EL_EMERALD,                     EL_WALL_EMERALD                 },
11425       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
11426       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
11427       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
11428       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
11429       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
11430       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
11431       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
11432       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
11433       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
11434       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
11435       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
11436       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
11437       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
11438       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
11439       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
11440       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
11441       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
11442       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
11443       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
11444       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
11445       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
11446       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
11447       { EL_PEARL,                       EL_WALL_PEARL                   },
11448       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
11449       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
11450       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
11451       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
11452       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
11453       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
11454       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
11455       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
11456       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
11457       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
11458       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
11459       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
11460       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
11461       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
11462       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
11463       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
11464
11465       { -1,                             -1                              },
11466     };
11467     static int rotatable_elements_4[][4] =
11468     {
11469       {
11470         EL_BUG_UP,
11471         EL_BUG_RIGHT,
11472         EL_BUG_DOWN,
11473         EL_BUG_LEFT
11474       },
11475       {
11476         EL_SPACESHIP_UP,
11477         EL_SPACESHIP_RIGHT,
11478         EL_SPACESHIP_DOWN,
11479         EL_SPACESHIP_LEFT
11480       },
11481       {
11482         EL_BD_BUTTERFLY_UP,
11483         EL_BD_BUTTERFLY_RIGHT,
11484         EL_BD_BUTTERFLY_DOWN,
11485         EL_BD_BUTTERFLY_LEFT
11486       },
11487       {
11488         EL_BD_FIREFLY_UP,
11489         EL_BD_FIREFLY_RIGHT,
11490         EL_BD_FIREFLY_DOWN,
11491         EL_BD_FIREFLY_LEFT
11492       },
11493       {
11494         EL_PACMAN_UP,
11495         EL_PACMAN_RIGHT,
11496         EL_PACMAN_DOWN,
11497         EL_PACMAN_LEFT
11498       },
11499       {
11500         EL_YAMYAM_UP,
11501         EL_YAMYAM_RIGHT,
11502         EL_YAMYAM_DOWN,
11503         EL_YAMYAM_LEFT
11504       },
11505       {
11506         EL_ARROW_UP,
11507         EL_ARROW_RIGHT,
11508         EL_ARROW_DOWN,
11509         EL_ARROW_LEFT
11510       },
11511       {
11512         EL_SP_PORT_UP,
11513         EL_SP_PORT_RIGHT,
11514         EL_SP_PORT_DOWN,
11515         EL_SP_PORT_LEFT
11516       },
11517       {
11518         EL_SP_GRAVITY_PORT_UP,
11519         EL_SP_GRAVITY_PORT_RIGHT,
11520         EL_SP_GRAVITY_PORT_DOWN,
11521         EL_SP_GRAVITY_PORT_LEFT
11522       },
11523       {
11524         EL_SP_GRAVITY_ON_PORT_UP,
11525         EL_SP_GRAVITY_ON_PORT_RIGHT,
11526         EL_SP_GRAVITY_ON_PORT_DOWN,
11527         EL_SP_GRAVITY_ON_PORT_LEFT
11528       },
11529       {
11530         EL_SP_GRAVITY_OFF_PORT_UP,
11531         EL_SP_GRAVITY_OFF_PORT_RIGHT,
11532         EL_SP_GRAVITY_OFF_PORT_DOWN,
11533         EL_SP_GRAVITY_OFF_PORT_LEFT
11534       },
11535       {
11536         EL_MOLE_UP,
11537         EL_MOLE_RIGHT,
11538         EL_MOLE_DOWN,
11539         EL_MOLE_LEFT
11540       },
11541       {
11542         EL_BALLOON_SWITCH_UP,
11543         EL_BALLOON_SWITCH_RIGHT,
11544         EL_BALLOON_SWITCH_DOWN,
11545         EL_BALLOON_SWITCH_LEFT
11546       },
11547       {
11548         EL_MM_MCDUFFIN_UP,
11549         EL_MM_MCDUFFIN_RIGHT,
11550         EL_MM_MCDUFFIN_DOWN,
11551         EL_MM_MCDUFFIN_LEFT
11552       },
11553       {
11554         EL_MM_MIRROR_FIXED_1,
11555         EL_MM_MIRROR_FIXED_4,
11556         EL_MM_MIRROR_FIXED_3,
11557         EL_MM_MIRROR_FIXED_2
11558       },
11559       {
11560         EL_MM_STEEL_GRID_FIXED_1,
11561         EL_MM_STEEL_GRID_FIXED_4,
11562         EL_MM_STEEL_GRID_FIXED_2,
11563         EL_MM_STEEL_GRID_FIXED_3
11564       },
11565       {
11566         EL_MM_WOODEN_GRID_FIXED_1,
11567         EL_MM_WOODEN_GRID_FIXED_4,
11568         EL_MM_WOODEN_GRID_FIXED_2,
11569         EL_MM_WOODEN_GRID_FIXED_3
11570       },
11571       {
11572         EL_MM_POLARIZER_CROSS_1,
11573         EL_MM_POLARIZER_CROSS_4,
11574         EL_MM_POLARIZER_CROSS_3,
11575         EL_MM_POLARIZER_CROSS_2
11576       },
11577       {
11578         EL_MM_PACMAN_UP,
11579         EL_MM_PACMAN_RIGHT,
11580         EL_MM_PACMAN_DOWN,
11581         EL_MM_PACMAN_LEFT
11582       },
11583       {
11584         EL_DF_LASER_UP,
11585         EL_DF_LASER_RIGHT,
11586         EL_DF_LASER_DOWN,
11587         EL_DF_LASER_LEFT
11588       },
11589       {
11590         EL_DF_RECEIVER_UP,
11591         EL_DF_RECEIVER_RIGHT,
11592         EL_DF_RECEIVER_DOWN,
11593         EL_DF_RECEIVER_LEFT
11594       },
11595
11596       {
11597         -1,
11598       },
11599     };
11600     static int rotatable_elements_8[][8] =
11601     {
11602       {
11603         EL_DF_STEEL_GRID_FIXED_1,
11604         EL_DF_STEEL_GRID_FIXED_8,
11605         EL_DF_STEEL_GRID_FIXED_7,
11606         EL_DF_STEEL_GRID_FIXED_6,
11607         EL_DF_STEEL_GRID_FIXED_5,
11608         EL_DF_STEEL_GRID_FIXED_4,
11609         EL_DF_STEEL_GRID_FIXED_3,
11610         EL_DF_STEEL_GRID_FIXED_2
11611       },
11612       {
11613         EL_DF_WOODEN_GRID_FIXED_1,
11614         EL_DF_WOODEN_GRID_FIXED_8,
11615         EL_DF_WOODEN_GRID_FIXED_7,
11616         EL_DF_WOODEN_GRID_FIXED_6,
11617         EL_DF_WOODEN_GRID_FIXED_5,
11618         EL_DF_WOODEN_GRID_FIXED_4,
11619         EL_DF_WOODEN_GRID_FIXED_3,
11620         EL_DF_WOODEN_GRID_FIXED_2
11621       },
11622       {
11623         EL_DF_STEEL_GRID_ROTATING_1,
11624         EL_DF_STEEL_GRID_ROTATING_8,
11625         EL_DF_STEEL_GRID_ROTATING_7,
11626         EL_DF_STEEL_GRID_ROTATING_6,
11627         EL_DF_STEEL_GRID_ROTATING_5,
11628         EL_DF_STEEL_GRID_ROTATING_4,
11629         EL_DF_STEEL_GRID_ROTATING_3,
11630         EL_DF_STEEL_GRID_ROTATING_2
11631       },
11632       {
11633         EL_DF_WOODEN_GRID_ROTATING_1,
11634         EL_DF_WOODEN_GRID_ROTATING_8,
11635         EL_DF_WOODEN_GRID_ROTATING_7,
11636         EL_DF_WOODEN_GRID_ROTATING_6,
11637         EL_DF_WOODEN_GRID_ROTATING_5,
11638         EL_DF_WOODEN_GRID_ROTATING_4,
11639         EL_DF_WOODEN_GRID_ROTATING_3,
11640         EL_DF_WOODEN_GRID_ROTATING_2
11641       },
11642
11643       {
11644         -1,
11645       },
11646     };
11647     static int rotatable_elements_16[][16] =
11648     {
11649       {
11650         EL_MM_MIRROR_1,
11651         EL_MM_MIRROR_16,
11652         EL_MM_MIRROR_15,
11653         EL_MM_MIRROR_14,
11654         EL_MM_MIRROR_13,
11655         EL_MM_MIRROR_12,
11656         EL_MM_MIRROR_11,
11657         EL_MM_MIRROR_10,
11658         EL_MM_MIRROR_9,
11659         EL_MM_MIRROR_8,
11660         EL_MM_MIRROR_7,
11661         EL_MM_MIRROR_6,
11662         EL_MM_MIRROR_5,
11663         EL_MM_MIRROR_4,
11664         EL_MM_MIRROR_3,
11665         EL_MM_MIRROR_2
11666       },
11667       {
11668         EL_MM_TELEPORTER_5,
11669         EL_MM_TELEPORTER_4,
11670         EL_MM_TELEPORTER_3,
11671         EL_MM_TELEPORTER_2,
11672         EL_MM_TELEPORTER_1,
11673         EL_MM_TELEPORTER_16,
11674         EL_MM_TELEPORTER_15,
11675         EL_MM_TELEPORTER_14,
11676         EL_MM_TELEPORTER_13,
11677         EL_MM_TELEPORTER_12,
11678         EL_MM_TELEPORTER_11,
11679         EL_MM_TELEPORTER_10,
11680         EL_MM_TELEPORTER_9,
11681         EL_MM_TELEPORTER_8,
11682         EL_MM_TELEPORTER_7,
11683         EL_MM_TELEPORTER_6
11684       },
11685       {
11686         EL_MM_TELEPORTER_RED_5,
11687         EL_MM_TELEPORTER_RED_4,
11688         EL_MM_TELEPORTER_RED_3,
11689         EL_MM_TELEPORTER_RED_2,
11690         EL_MM_TELEPORTER_RED_1,
11691         EL_MM_TELEPORTER_RED_16,
11692         EL_MM_TELEPORTER_RED_15,
11693         EL_MM_TELEPORTER_RED_14,
11694         EL_MM_TELEPORTER_RED_13,
11695         EL_MM_TELEPORTER_RED_12,
11696         EL_MM_TELEPORTER_RED_11,
11697         EL_MM_TELEPORTER_RED_10,
11698         EL_MM_TELEPORTER_RED_9,
11699         EL_MM_TELEPORTER_RED_8,
11700         EL_MM_TELEPORTER_RED_7,
11701         EL_MM_TELEPORTER_RED_6
11702       },
11703       {
11704         EL_MM_TELEPORTER_YELLOW_5,
11705         EL_MM_TELEPORTER_YELLOW_4,
11706         EL_MM_TELEPORTER_YELLOW_3,
11707         EL_MM_TELEPORTER_YELLOW_2,
11708         EL_MM_TELEPORTER_YELLOW_1,
11709         EL_MM_TELEPORTER_YELLOW_16,
11710         EL_MM_TELEPORTER_YELLOW_15,
11711         EL_MM_TELEPORTER_YELLOW_14,
11712         EL_MM_TELEPORTER_YELLOW_13,
11713         EL_MM_TELEPORTER_YELLOW_12,
11714         EL_MM_TELEPORTER_YELLOW_11,
11715         EL_MM_TELEPORTER_YELLOW_10,
11716         EL_MM_TELEPORTER_YELLOW_9,
11717         EL_MM_TELEPORTER_YELLOW_8,
11718         EL_MM_TELEPORTER_YELLOW_7,
11719         EL_MM_TELEPORTER_YELLOW_6
11720       },
11721       {
11722         EL_MM_TELEPORTER_GREEN_5,
11723         EL_MM_TELEPORTER_GREEN_4,
11724         EL_MM_TELEPORTER_GREEN_3,
11725         EL_MM_TELEPORTER_GREEN_2,
11726         EL_MM_TELEPORTER_GREEN_1,
11727         EL_MM_TELEPORTER_GREEN_16,
11728         EL_MM_TELEPORTER_GREEN_15,
11729         EL_MM_TELEPORTER_GREEN_14,
11730         EL_MM_TELEPORTER_GREEN_13,
11731         EL_MM_TELEPORTER_GREEN_12,
11732         EL_MM_TELEPORTER_GREEN_11,
11733         EL_MM_TELEPORTER_GREEN_10,
11734         EL_MM_TELEPORTER_GREEN_9,
11735         EL_MM_TELEPORTER_GREEN_8,
11736         EL_MM_TELEPORTER_GREEN_7,
11737         EL_MM_TELEPORTER_GREEN_6
11738       },
11739       {
11740         EL_MM_TELEPORTER_BLUE_5,
11741         EL_MM_TELEPORTER_BLUE_4,
11742         EL_MM_TELEPORTER_BLUE_3,
11743         EL_MM_TELEPORTER_BLUE_2,
11744         EL_MM_TELEPORTER_BLUE_1,
11745         EL_MM_TELEPORTER_BLUE_16,
11746         EL_MM_TELEPORTER_BLUE_15,
11747         EL_MM_TELEPORTER_BLUE_14,
11748         EL_MM_TELEPORTER_BLUE_13,
11749         EL_MM_TELEPORTER_BLUE_12,
11750         EL_MM_TELEPORTER_BLUE_11,
11751         EL_MM_TELEPORTER_BLUE_10,
11752         EL_MM_TELEPORTER_BLUE_9,
11753         EL_MM_TELEPORTER_BLUE_8,
11754         EL_MM_TELEPORTER_BLUE_7,
11755         EL_MM_TELEPORTER_BLUE_6
11756       },
11757       {
11758         EL_MM_POLARIZER_1,
11759         EL_MM_POLARIZER_16,
11760         EL_MM_POLARIZER_15,
11761         EL_MM_POLARIZER_14,
11762         EL_MM_POLARIZER_13,
11763         EL_MM_POLARIZER_12,
11764         EL_MM_POLARIZER_11,
11765         EL_MM_POLARIZER_10,
11766         EL_MM_POLARIZER_9,
11767         EL_MM_POLARIZER_8,
11768         EL_MM_POLARIZER_7,
11769         EL_MM_POLARIZER_6,
11770         EL_MM_POLARIZER_5,
11771         EL_MM_POLARIZER_4,
11772         EL_MM_POLARIZER_3,
11773         EL_MM_POLARIZER_2
11774       },
11775       {
11776         EL_DF_MIRROR_1,
11777         EL_DF_MIRROR_16,
11778         EL_DF_MIRROR_15,
11779         EL_DF_MIRROR_14,
11780         EL_DF_MIRROR_13,
11781         EL_DF_MIRROR_12,
11782         EL_DF_MIRROR_11,
11783         EL_DF_MIRROR_10,
11784         EL_DF_MIRROR_9,
11785         EL_DF_MIRROR_8,
11786         EL_DF_MIRROR_7,
11787         EL_DF_MIRROR_6,
11788         EL_DF_MIRROR_5,
11789         EL_DF_MIRROR_4,
11790         EL_DF_MIRROR_3,
11791         EL_DF_MIRROR_2
11792       },
11793       {
11794         EL_DF_MIRROR_ROTATING_1,
11795         EL_DF_MIRROR_ROTATING_16,
11796         EL_DF_MIRROR_ROTATING_15,
11797         EL_DF_MIRROR_ROTATING_14,
11798         EL_DF_MIRROR_ROTATING_13,
11799         EL_DF_MIRROR_ROTATING_12,
11800         EL_DF_MIRROR_ROTATING_11,
11801         EL_DF_MIRROR_ROTATING_10,
11802         EL_DF_MIRROR_ROTATING_9,
11803         EL_DF_MIRROR_ROTATING_8,
11804         EL_DF_MIRROR_ROTATING_7,
11805         EL_DF_MIRROR_ROTATING_6,
11806         EL_DF_MIRROR_ROTATING_5,
11807         EL_DF_MIRROR_ROTATING_4,
11808         EL_DF_MIRROR_ROTATING_3,
11809         EL_DF_MIRROR_ROTATING_2
11810       },
11811
11812       {
11813         -1,
11814       },
11815     };
11816     int i, j;
11817
11818     for (i = 0; swappable_elements[i][0] != -1; i++)
11819     {
11820       int element1 = swappable_elements[i][0];
11821       int element2 = swappable_elements[i][1];
11822
11823       if (old_element == element1 || old_element == element2)
11824         new_element = (old_element == element1 ? element2 : element1);
11825     }
11826
11827     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
11828     {
11829       for (j = 0; j < 4; j++)
11830       {
11831         int element = rotatable_elements_4[i][j];
11832
11833         if (old_element == element)
11834           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
11835                          button == 2 ? rotatable_elements_4[i][0]           :
11836                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
11837                          old_element);
11838       }
11839     }
11840
11841     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
11842     {
11843       for (j = 0; j < 8; j++)
11844       {
11845         int element = rotatable_elements_8[i][j];
11846
11847         if (old_element == element)
11848           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
11849                          button == 2 ? rotatable_elements_8[i][0]           :
11850                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
11851                          old_element);
11852       }
11853     }
11854
11855     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
11856     {
11857       for (j = 0; j < 16; j++)
11858       {
11859         int element = rotatable_elements_16[i][j];
11860
11861         if (old_element == element)
11862           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
11863                          button == 2 ? rotatable_elements_16[i][0]             :
11864                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
11865                          old_element);
11866       }
11867     }
11868
11869     if (old_element != new_element)
11870     {
11871       int max_infotext_len = getMaxInfoTextLength();
11872       char infotext[MAX_OUTPUT_LINESIZE + 1];
11873
11874       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
11875       infotext[max_infotext_len] = '\0';
11876
11877       ClearEditorGadgetInfoText();
11878
11879       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
11880                 infotext);
11881     }
11882   }
11883
11884   SetElementSimple(x, y, new_element, change_level);
11885
11886   last_x = x;
11887   last_y = y;
11888 }
11889
11890 static void ResetIntelliDraw(void)
11891 {
11892   int x, y;
11893
11894   for (x = 0; x < lev_fieldx; x++)
11895     for (y = 0; y < lev_fieldy; y++)
11896       IntelliDrawBuffer[x][y] = Tile[x][y];
11897
11898   SetElementIntelliDraw(-1, -1, EL_UNDEFINED, FALSE, -1);
11899 }
11900
11901 static boolean draw_mode_hires = FALSE;
11902
11903 static boolean isHiresTileElement(int element)
11904 {
11905   return (IS_MM_WALL(element)        || element == EL_EMPTY);
11906 }
11907
11908 static boolean isHiresDrawElement(int element)
11909 {
11910   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
11911 }
11912
11913 static void SetDrawModeHiRes(int element)
11914 {
11915   draw_mode_hires =
11916     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
11917      isHiresDrawElement(element));
11918 }
11919
11920 static boolean getDrawModeHiRes(void)
11921 {
11922   return draw_mode_hires;
11923 }
11924
11925 static int getLoResScreenPos(int pos)
11926 {
11927   return (getDrawModeHiRes() ? pos / 2 : pos);
11928 }
11929
11930 static int getLoResScreenMod(int pos)
11931 {
11932   return (getDrawModeHiRes() ? pos % 2 : 0);
11933 }
11934
11935 static void SetElementExt(int x, int y, int dx, int dy, int element,
11936                           boolean change_level, int button)
11937 {
11938   if (element < 0)
11939     SetElementSimple(x, y, Tile[x][y], change_level);
11940   else if (GetKeyModState() & KMOD_Shift && !IS_MM_WALL_EDITOR(element))
11941     SetElementIntelliDraw(x, y, element, change_level, button);
11942   else
11943     SetElementSimpleExt(x, y, dx, dy, element, change_level);
11944 }
11945
11946 static void SetElement(int x, int y, int element)
11947 {
11948   SetElementExt(x, y, 0, 0, element, TRUE, -1);
11949 }
11950
11951 static void SetElementButton(int x, int y, int dx, int dy, int element,
11952                              int button)
11953 {
11954   SetElementExt(x, y, dx, dy, element, TRUE, button);
11955 }
11956
11957 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
11958 {
11959   int lx = getLoResScreenPos(sx2) + level_xpos;
11960   int ly = getLoResScreenPos(sy2) + level_ypos;
11961   int dx = getLoResScreenMod(sx2);
11962   int dy = getLoResScreenMod(sy2);
11963
11964   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
11965 }
11966
11967 static void SetLevelElementHiRes(int lx2, int ly2, int element)
11968 {
11969   int lx = lx2 / 2;
11970   int ly = ly2 / 2;
11971   int dx = lx2 % 2;
11972   int dy = ly2 % 2;
11973
11974   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
11975 }
11976
11977 static int getLevelElementHiRes(int lx2, int ly2)
11978 {
11979   int lx = lx2 / 2;
11980   int ly = ly2 / 2;
11981   int dx = lx2 % 2;
11982   int dy = ly2 % 2;
11983   int element = Tile[lx][ly];
11984   unsigned int bitmask = (dx + 1) << (dy * 2);
11985
11986   if (IS_MM_WALL(element))
11987   {
11988     if (element & bitmask)
11989       return map_mm_wall_element(element);
11990     else
11991       return EL_EMPTY;
11992   }
11993
11994   return element;
11995 }
11996
11997 static void DrawLineElement(int x, int y, int element, boolean change_level)
11998 {
11999   SetElementHiRes(x, y, element, change_level);
12000 }
12001
12002 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
12003                      int element, boolean change_level)
12004 {
12005   int xsize = ABS(to_x - from_x);
12006   int ysize = ABS(to_y - from_y);
12007   int dx = (to_x < from_x ? -1 : +1);
12008   int dy = (to_y < from_y ? -1 : +1);
12009   int i;
12010
12011   if (from_y == to_y)                   // horizontal line
12012   {
12013     for (i = 0; i <= xsize; i++)
12014       DrawLineElement(from_x + i * dx, from_y, element, change_level);
12015   }
12016   else if (from_x == to_x)              // vertical line
12017   {
12018     for (i = 0; i <= ysize; i++)
12019       DrawLineElement(from_x, from_y + i * dy, element, change_level);
12020   }
12021   else                                  // diagonal line
12022   {
12023     if (ysize < xsize)                  // a < 1
12024     {
12025       float a = (float)ysize / (float)xsize;
12026
12027       for (i = 0; i <= xsize; i++)
12028       {
12029         int x = dx * i;
12030         int y = dy * (int)(a * i + 0.5);
12031
12032         DrawLineElement(from_x + x, from_y + y, element, change_level);
12033       }
12034     }
12035     else                                // a >= 1
12036     {
12037       float a = (float)xsize / (float)ysize;
12038
12039       for (i = 0; i <= ysize; i++)
12040       {
12041         int x = dx * (int)(a * i + 0.5);
12042         int y = dy * i;
12043
12044         DrawLineElement(from_x + x, from_y + y, element, change_level);
12045       }
12046     }
12047   }
12048 }
12049
12050 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
12051                     int element, boolean change_level)
12052 {
12053   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
12054   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
12055   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
12056   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
12057 }
12058
12059 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
12060                           int element, boolean change_level)
12061 {
12062   int y;
12063
12064   if (from_y > to_y)
12065     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
12066
12067   for (y = from_y; y <= to_y; y++)
12068     DrawLine(from_x, y, to_x, y, element, change_level);
12069 }
12070
12071 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
12072                        int element, boolean change_level)
12073 {
12074   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
12075   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
12076   int len_x = ABS(to_x - from_x);
12077   int len_y = ABS(to_y - from_y);
12078   int radius, x, y;
12079
12080   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
12081
12082   // not optimal (some points get drawn twice) but simple,
12083   // and fast enough for the few points we are drawing
12084
12085   for (x = 0; x <= radius; x++)
12086   {
12087     int sx, sy, sx2, sy2, lx, ly;
12088
12089     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
12090
12091     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
12092     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
12093     sx = getLoResScreenPos(sx2);
12094     sy = getLoResScreenPos(sy2);
12095     lx = sx + level_xpos;
12096     ly = sy + level_ypos;
12097
12098     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12099       DrawLineElement(sx2, sy2, element, change_level);
12100   }
12101
12102   for (y = 0; y <= radius; y++)
12103   {
12104     int sx, sy, sx2, sy2, lx, ly;
12105
12106     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
12107
12108     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
12109     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
12110     sx = getLoResScreenPos(sx2);
12111     sy = getLoResScreenPos(sy2);
12112     lx = sx + level_xpos;
12113     ly = sy + level_ypos;
12114
12115     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12116       DrawLineElement(sx2, sy2, element, change_level);
12117   }
12118 }
12119
12120 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
12121                     int element, boolean change_level)
12122 {
12123   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
12124   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
12125
12126   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
12127 }
12128
12129 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
12130
12131 #if DRAW_CIRCLES_BUTTON_AVAILABLE
12132 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
12133                        int element, boolean change_level)
12134 {
12135   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
12136   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
12137   int mirror_to_x2 = from_x - (to_x2 - from_x);
12138   int mirror_to_y2 = from_y - (to_y2 - from_y);
12139
12140   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
12141   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
12142   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
12143   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
12144 }
12145 #endif
12146
12147 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
12148 {
12149   int from_sx, from_sy;
12150   int to_sx, to_sy;
12151
12152   if (from_x > to_x)
12153     swap_numbers(&from_x, &to_x);
12154
12155   if (from_y > to_y)
12156     swap_numbers(&from_y, &to_y);
12157
12158   from_sx = SX + from_x * ed_tilesize;
12159   from_sy = SY + from_y * ed_tilesize;
12160   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
12161   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
12162
12163   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
12164   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
12165   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
12166   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
12167
12168   if (from_x == to_x && from_y == to_y)
12169     MarkTileDirty(from_x/2, from_y/2);
12170   else
12171     redraw_mask |= REDRAW_FIELD;
12172 }
12173
12174 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
12175                         int element, boolean change_level)
12176 {
12177   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
12178 }
12179
12180 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
12181                        int element, boolean change_level)
12182 {
12183   if (element == -1 || change_level)
12184     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
12185   else
12186     DrawAreaBorder(from_x, from_y, to_x, to_y);
12187 }
12188
12189 // values for CopyBrushExt()
12190 #define CB_AREA_TO_BRUSH                0
12191 #define CB_BRUSH_TO_CURSOR              1
12192 #define CB_BRUSH_TO_LEVEL               2
12193 #define CB_DELETE_OLD_CURSOR            3
12194 #define CB_DUMP_BRUSH                   4
12195 #define CB_DUMP_BRUSH_SMALL             5
12196 #define CB_CLIPBOARD_TO_BRUSH           6
12197 #define CB_BRUSH_TO_CLIPBOARD           7
12198 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
12199 #define CB_UPDATE_BRUSH_POSITION        9
12200
12201 #define MAX_CB_PART_SIZE        10
12202 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
12203 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
12204 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
12205                                  MAX_CB_NUM_LINES *     \
12206                                  MAX_CB_PART_SIZE)
12207
12208 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
12209 {
12210   DrawLineElement(sx, sy, element, change_level);
12211 }
12212
12213 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
12214                          int button, int mode)
12215 {
12216   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
12217   static int brush_width, brush_height;
12218   static int last_cursor_x = -1, last_cursor_y = -1;
12219   static boolean delete_old_brush = FALSE;
12220   int new_element = BUTTON_ELEMENT(button);
12221   int x, y;
12222
12223   if (mode == CB_DUMP_BRUSH ||
12224       mode == CB_DUMP_BRUSH_SMALL ||
12225       mode == CB_BRUSH_TO_CLIPBOARD ||
12226       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
12227   {
12228     if (edit_mode != ED_MODE_DRAWING)
12229       return;
12230
12231     char part[MAX_CB_PART_SIZE + 1] = "";
12232     char text[MAX_CB_TEXT_SIZE + 1] = "";
12233     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
12234     int height = (draw_with_brush ? brush_height : lev_fieldy);
12235     char *format = "%s%03d";
12236
12237     for (y = 0; y < height; y++)
12238       for (x = 0; x < width; x++)
12239         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
12240           format = "%s%04d";
12241
12242     for (y = 0; y < height; y++)
12243     {
12244       for (x = 0; x < width; x++)
12245       {
12246         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
12247         char *prefix = (mode == CB_DUMP_BRUSH ||
12248                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
12249
12250         if (element >= NUM_FILE_ELEMENTS)
12251           element = EL_UNKNOWN;
12252
12253         // copy brush to level sketch text buffer for the R'n'D forum:
12254         // - large tiles: `xxx or `xxxx (0x60 ASCII)
12255         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
12256         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
12257         strcat(text, part);
12258       }
12259
12260       strcat(text, "\n");
12261     }
12262
12263     if (mode == CB_BRUSH_TO_CLIPBOARD ||
12264         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
12265       SDL_SetClipboardText(text);
12266     else
12267       Print("%s", text);        // print brush data to console and log file
12268
12269     return;
12270   }
12271
12272   if (mode == CB_CLIPBOARD_TO_BRUSH)
12273   {
12274     if (edit_mode != ED_MODE_DRAWING)
12275       return;
12276
12277     if (!SDL_HasClipboardText())
12278     {
12279       Request("Clipboard is empty!", REQ_CONFIRM);
12280
12281       return;
12282     }
12283
12284     boolean copy_to_brush = (draw_with_brush ||
12285                              drawing_function == GADGET_ID_GRAB_BRUSH);
12286
12287     // this will delete the old brush, if already drawing with a brush
12288     if (copy_to_brush)
12289       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
12290
12291     // initialization is required for "odd" (incomplete) clipboard content
12292     for (x = 0; x < MAX_LEV_FIELDX; x++)
12293       for (y = 0; y < MAX_LEV_FIELDY; y++)
12294         brush_buffer[x][y] = EL_EMPTY;
12295
12296     brush_width  = 0;
12297     brush_height = 0;
12298     x = 0;
12299     y = 0;
12300
12301     char *clipboard_text = SDL_GetClipboardText();
12302     char *ptr = clipboard_text;
12303     boolean allow_new_row = FALSE;
12304     boolean stop = FALSE;
12305
12306     while (*ptr && !stop)
12307     {
12308       boolean prefix_found = FALSE;
12309       boolean start_new_row = FALSE;
12310
12311       // level sketch element number prefixes (may be multi-byte characters)
12312       char *prefix_list[] = { "`", "¸" };
12313       int i;
12314
12315       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
12316       {
12317         char *prefix = prefix_list[i];
12318
12319         // check if string is large enough for prefix
12320         if (strlen(ptr) < strlen(prefix))
12321         {
12322           stop = TRUE;
12323
12324           break;
12325         }
12326
12327         // check if string starts with prefix
12328         if (strPrefix(ptr, prefix))
12329         {
12330           ptr += strlen(prefix);
12331
12332           prefix_found = TRUE;
12333
12334           break;
12335         }
12336       }
12337
12338       // check if prefix found and followed by (at least) three digits
12339       if (prefix_found &&
12340           strlen(ptr) >= 3 &&
12341           ptr[0] >= '0' && ptr[0] <= '9' &&
12342           ptr[1] >= '0' && ptr[1] <= '9' &&
12343           ptr[2] >= '0' && ptr[2] <= '9')
12344       {
12345         int element = ((ptr[0] - '0') * 100 +
12346                        (ptr[1] - '0') * 10 +
12347                        (ptr[2] - '0'));
12348
12349         ptr += 3;
12350
12351         // level sketch element number might consist of four digits
12352         if (ptr[0] >= '0' && ptr[0] <= '9')
12353         {
12354           element = element * 10 + (ptr[0] - '0');
12355           ptr++;
12356         }
12357
12358         // remap some (historic, now obsolete) elements
12359         element = getMappedElement(element);
12360
12361         if (element >= NUM_FILE_ELEMENTS)
12362           element = EL_UNKNOWN;
12363
12364         brush_buffer[x][y] = element;
12365
12366         brush_width  = MAX(x + 1, brush_width);
12367         brush_height = MAX(y + 1, brush_height);
12368
12369         x++;
12370
12371         if (x >= MAX_LEV_FIELDX)
12372           start_new_row = TRUE;
12373
12374         allow_new_row = TRUE;
12375       }
12376       else
12377       {
12378         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
12379           start_new_row = TRUE;
12380
12381         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
12382       }
12383
12384       if (start_new_row)
12385       {
12386         x = 0;
12387         y++;
12388
12389         if (y >= MAX_LEV_FIELDY)
12390           stop = TRUE;
12391
12392         allow_new_row = FALSE;
12393       }
12394     }
12395
12396     SDL_free(clipboard_text);
12397
12398     if (brush_width == 0 || brush_height == 0)
12399     {
12400       Request("No level sketch found in clipboard!", REQ_CONFIRM);
12401
12402       return;
12403     }
12404
12405     if (copy_to_brush)
12406     {
12407       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
12408       int mx, my;
12409
12410       SDL_GetMouseState(&mx, &my);
12411
12412       // if inside drawing area, activate and draw brush at last mouse position
12413       if (mx >= gi->x && mx < gi->x + gi->width &&
12414           my >= gi->y && my < gi->y + gi->height)
12415         CopyBrushToCursor(last_cursor_x, last_cursor_y);
12416
12417       draw_with_brush = TRUE;
12418     }
12419     else
12420     {
12421       char request[100];
12422
12423       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
12424               brush_width, brush_height);
12425
12426       if (!Request(request, REQ_ASK))
12427         return;
12428
12429       for (x = 0; x < MAX_LEV_FIELDX; x++)
12430         for (y = 0; y < MAX_LEV_FIELDY; y++)
12431           Tile[x][y] = brush_buffer[x][y];
12432
12433       lev_fieldx = level.fieldx = brush_width;
12434       lev_fieldy = level.fieldy = brush_height;
12435
12436       boolean use_em_engine = TRUE;
12437       boolean use_sp_engine = TRUE;
12438       boolean use_mm_engine = TRUE;
12439
12440       for (x = 0; x < MAX_LEV_FIELDX; x++)
12441       {
12442         for (y = 0; y < MAX_LEV_FIELDY; y++)
12443         {
12444           int element = Tile[x][y];
12445
12446           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
12447             use_em_engine = FALSE;
12448
12449           if (!IS_SP_ELEMENT(element))
12450             use_sp_engine = FALSE;
12451
12452           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
12453             use_mm_engine = FALSE;
12454         }
12455       }
12456
12457       level.game_engine_type = (use_em_engine ? GAME_ENGINE_TYPE_EM :
12458                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
12459                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
12460                                 GAME_ENGINE_TYPE_RND);
12461
12462       // update element selection list
12463       ReinitializeElementList();
12464       ModifyEditorElementList();
12465
12466       SetBorderElement();
12467
12468       DrawEditModeWindow();
12469       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12470     }
12471
12472     return;
12473   }
12474
12475   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
12476     return;
12477
12478   if (mode == CB_AREA_TO_BRUSH)
12479   {
12480     int from_lx, from_ly;
12481
12482     if (from_x > to_x)
12483       swap_numbers(&from_x, &to_x);
12484
12485     if (from_y > to_y)
12486       swap_numbers(&from_y, &to_y);
12487
12488     brush_width = to_x - from_x + 1;
12489     brush_height = to_y - from_y + 1;
12490
12491     from_lx = from_x + level_xpos;
12492     from_ly = from_y + level_ypos;
12493
12494     for (y = 0; y < brush_height; y++)
12495     {
12496       for (x = 0; x < brush_width; x++)
12497       {
12498         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
12499
12500         if (button != 1)
12501           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
12502       }
12503     }
12504
12505     if (button != 1)
12506       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12507
12508     delete_old_brush = FALSE;
12509   }
12510   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
12511            mode == CB_BRUSH_TO_LEVEL)
12512   {
12513     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
12514     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
12515     int cursor_from_x = cursor_x - brush_width / 2;
12516     int cursor_from_y = cursor_y - brush_height / 2;
12517     int border_from_x = cursor_x, border_from_y = cursor_y;
12518     int border_to_x = cursor_x, border_to_y = cursor_y;
12519
12520     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
12521       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
12522
12523     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
12524         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
12525     {
12526       delete_old_brush = FALSE;
12527
12528       return;
12529     }
12530
12531     for (y = 0; y < brush_height; y++)
12532     {
12533       for (x = 0; x < brush_width; x++)
12534       {
12535         int sx = cursor_from_x + x;
12536         int sy = cursor_from_y + y;
12537         int lx = sx + level_xpos;
12538         int ly = sy + level_ypos;
12539         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
12540         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
12541                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
12542                        brush_buffer[x][y] : new_element);
12543
12544         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12545         {
12546           if (sx < border_from_x)
12547             border_from_x = sx;
12548           else if (sx > border_to_x)
12549             border_to_x = sx;
12550           if (sy < border_from_y)
12551             border_from_y = sy;
12552           else if (sy > border_to_y)
12553             border_to_y = sy;
12554
12555           DrawBrushElement(sx, sy, element, change_level);
12556         }
12557       }
12558     }
12559
12560     if (mode != CB_DELETE_OLD_CURSOR)
12561       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
12562
12563     last_cursor_x = cursor_x;
12564     last_cursor_y = cursor_y;
12565
12566     delete_old_brush = TRUE;
12567   }
12568
12569   if (mode == CB_UPDATE_BRUSH_POSITION)
12570   {
12571     last_cursor_x = from_x;
12572     last_cursor_y = from_y;
12573   }
12574 }
12575
12576 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
12577                             int button)
12578 {
12579   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
12580 }
12581
12582 static void CopyBrushToLevel(int x, int y, int button)
12583 {
12584   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
12585 }
12586
12587 static void CopyBrushToCursor(int x, int y)
12588 {
12589   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
12590 }
12591
12592 static void UpdateBrushPosition(int x, int y)
12593 {
12594   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
12595 }
12596
12597 static void DeleteBrushFromCursor(void)
12598 {
12599   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
12600 }
12601
12602 void DumpBrush(void)
12603 {
12604   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
12605 }
12606
12607 void DumpBrush_Small(void)
12608 {
12609   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
12610 }
12611
12612 void CopyClipboardToBrush(void)
12613 {
12614   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
12615 }
12616
12617 void CopyBrushToClipboard(void)
12618 {
12619   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
12620 }
12621
12622 void CopyBrushToClipboard_Small(void)
12623 {
12624   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
12625 }
12626
12627 void UndoLevelEditorOperation(void)
12628 {
12629   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
12630 }
12631
12632 void RedoLevelEditorOperation(void)
12633 {
12634   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
12635 }
12636
12637 static void FloodFill(int from_x, int from_y, int fill_element)
12638 {
12639   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
12640 }
12641
12642 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
12643 {
12644   int from_x = from_sx2 + 2 * level_xpos;
12645   int from_y = from_sy2 + 2 * level_ypos;
12646   int max_fillx = lev_fieldx * 2;
12647   int max_filly = lev_fieldy * 2;
12648   short Fill[max_fillx][max_filly];
12649   int x, y;
12650
12651   for (x = 0; x < max_fillx; x++)
12652     for (y = 0; y < max_filly; y++)
12653       Fill[x][y] = getLevelElementHiRes(x, y);
12654
12655   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
12656                     Fill, max_fillx, max_filly);
12657
12658   for (x = 0; x < max_fillx; x++)
12659     for (y = 0; y < max_filly; y++)
12660       if (Fill[x][y] == fill_element)
12661         SetLevelElementHiRes(x, y, Fill[x][y]);
12662 }
12663
12664 // values for DrawLevelText() modes
12665 #define TEXT_INIT               0
12666 #define TEXT_SETCURSOR          1
12667 #define TEXT_WRITECHAR          2
12668 #define TEXT_BACKSPACE          3
12669 #define TEXT_NEWLINE            4
12670 #define TEXT_END                5
12671 #define TEXT_QUERY_TYPING       6
12672
12673 static int DrawLevelText(int sx, int sy, char letter, int mode)
12674 {
12675   static short delete_buffer[MAX_LEV_FIELDX];
12676   static int start_sx;
12677   static int last_sx, last_sy;
12678   static boolean typing = FALSE;
12679   int letter_element;
12680   int lx = 0, ly = 0;
12681
12682   // map lower case letters to upper case and convert special characters
12683   if (letter >= 'a' && letter <= 'z')
12684     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
12685   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
12686     letter_element = EL_CHAR_AUMLAUT;
12687   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
12688     letter_element = EL_CHAR_OUMLAUT;
12689   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
12690     letter_element = EL_CHAR_UUMLAUT;
12691   else if (letter == '^')
12692     letter_element = EL_CHAR_COPYRIGHT;
12693   else
12694     letter_element = EL_CHAR_ASCII0 + letter;
12695
12696   if (mode != TEXT_INIT)
12697   {
12698     if (!typing)
12699       return FALSE;
12700
12701     if (mode != TEXT_SETCURSOR)
12702     {
12703       sx = last_sx;
12704       sy = last_sy;
12705     }
12706
12707     lx = last_sx + level_xpos;
12708     ly = last_sy + level_ypos;
12709   }
12710
12711   switch (mode)
12712   {
12713     case TEXT_INIT:
12714       if (typing)
12715         DrawLevelText(0, 0, 0, TEXT_END);
12716
12717       typing = TRUE;
12718       start_sx = sx;
12719       last_sx = sx;
12720       last_sy = sy;
12721       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
12722       break;
12723
12724     case TEXT_SETCURSOR:
12725       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
12726       DrawAreaBorder(sx, sy, sx, sy);
12727       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
12728                      ed_tilesize, ed_tilesize);
12729       last_sx = sx;
12730       last_sy = sy;
12731       break;
12732
12733     case TEXT_WRITECHAR:
12734       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
12735       {
12736         if (new_element1 >= EL_STEEL_CHAR_START &&
12737             new_element1 <= EL_STEEL_CHAR_END)
12738           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
12739
12740         delete_buffer[sx - start_sx] = Tile[lx][ly];
12741         Tile[lx][ly] = letter_element;
12742
12743         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
12744           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
12745         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
12746           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
12747         else
12748           DrawLevelText(0, 0, 0, TEXT_END);
12749
12750         level.changed = TRUE;
12751       }
12752       break;
12753
12754     case TEXT_BACKSPACE:
12755       if (sx > start_sx)
12756       {
12757         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
12758         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
12759         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
12760       }
12761       break;
12762
12763     case TEXT_NEWLINE:
12764       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
12765         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
12766       else
12767         DrawLevelText(0, 0, 0, TEXT_END);
12768       break;
12769
12770     case TEXT_END:
12771       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12772       DrawEditorElement(sx, sy, Tile[lx][ly]);
12773       StopTextInput();
12774       typing = FALSE;
12775       break;
12776
12777     case TEXT_QUERY_TYPING:
12778       break;
12779
12780     default:
12781       break;
12782   }
12783
12784   return typing;
12785 }
12786
12787 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
12788                           int element, boolean change_level)
12789 {
12790   int lx = sx + level_xpos;
12791   int ly = sy + level_ypos;
12792
12793   if (element == -1)
12794     DrawEditorElement(sx, sy, Tile[lx][ly]);
12795   else
12796     DrawAreaBorder(sx, sy, sx, sy);
12797 }
12798
12799 static void CheckLevelBorderElement(boolean redraw_playfield)
12800 {
12801   int last_border_element = BorderElement;
12802
12803   SetBorderElement();
12804
12805   if (redraw_playfield && BorderElement != last_border_element)
12806     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
12807 }
12808
12809 static void CopyLevelToUndoBuffer(int mode)
12810 {
12811   static boolean accumulated_undo = FALSE;
12812   boolean new_undo_buffer_position = TRUE;
12813   int x, y;
12814
12815   if (undo_buffer_steps == 0)
12816     accumulated_undo = FALSE;
12817
12818   switch (mode)
12819   {
12820     case UNDO_IMMEDIATE:
12821       accumulated_undo = FALSE;
12822       break;
12823
12824     case UNDO_ACCUMULATE:
12825       if (accumulated_undo)
12826         new_undo_buffer_position = FALSE;
12827       accumulated_undo = TRUE;
12828       break;
12829
12830     default:
12831       break;
12832   }
12833
12834   if (new_undo_buffer_position)
12835   {
12836     // advance position in undo buffer ring
12837     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
12838
12839     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
12840       undo_buffer_steps++;
12841   }
12842
12843   // always reset redo buffer when storing level change into undo buffer
12844   redo_buffer_steps = 0;
12845
12846   for (x = 0; x < lev_fieldx; x++)
12847     for (y = 0; y < lev_fieldy; y++)
12848       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
12849
12850   // check if drawing operation forces change of border style
12851   CheckLevelBorderElement(TRUE);
12852
12853   level.changed = TRUE;
12854 }
12855
12856 static void RandomPlacement(int new_element)
12857 {
12858   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
12859   int num_free_positions = 0;
12860   int num_percentage, num_elements;
12861   int x, y;
12862
12863   ResetIntelliDraw();
12864
12865   // determine number of free positions for randomly placing the new element
12866   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
12867   {
12868     free_position[x][y] =
12869       (random_placement_background_restricted ?
12870        Tile[x][y] == random_placement_background_element :
12871        Tile[x][y] != new_element);
12872
12873     if (free_position[x][y])
12874       num_free_positions++;
12875   }
12876
12877   // determine number of new elements to place there
12878   num_percentage = num_free_positions * random_placement_value / 100;
12879   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
12880                   num_percentage : random_placement_value);
12881
12882   // if less free positions than elements to place, fill all these positions
12883   if (num_free_positions < num_elements)
12884   {
12885     for (x = 0; x < lev_fieldx; x++)
12886       for (y = 0; y < lev_fieldy; y++)
12887         if (free_position[x][y])
12888           SetElement(x, y, new_element);
12889   }
12890   else
12891   {
12892     while (num_elements > 0)
12893     {
12894       x = GetSimpleRandom(lev_fieldx);
12895       y = GetSimpleRandom(lev_fieldy);
12896
12897       // don't place element at the same position twice
12898       if (free_position[x][y])
12899       {
12900         free_position[x][y] = FALSE;
12901         SetElement(x, y, new_element);
12902         num_elements--;
12903       }
12904     }
12905   }
12906
12907   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
12908   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12909 }
12910
12911 static void WrapLevel(int dx, int dy)
12912 {
12913   int wrap_dx = lev_fieldx - dx;
12914   int wrap_dy = lev_fieldy - dy;
12915   int x, y;
12916
12917   for (x = 0; x < lev_fieldx; x++)
12918     for (y = 0; y < lev_fieldy; y++)
12919       TileBackup[x][y] = Tile[x][y];
12920
12921   for (x = 0; x < lev_fieldx; x++)
12922     for (y = 0; y < lev_fieldy; y++)
12923       Tile[x][y] =
12924         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
12925
12926   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
12927   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
12928 }
12929
12930 static void DrawAreaElementHighlight(boolean highlighted)
12931 {
12932   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
12933
12934   if (!highlighted)
12935     return;
12936
12937   int x, y;
12938
12939   for (x = 0; x < ed_fieldx; x++)
12940   {
12941     for (y = 0; y < ed_fieldy; y++)
12942     {
12943       int lx = x + level_xpos;
12944       int ly = y + level_ypos;
12945
12946       if (!IN_LEV_FIELD(lx, ly))
12947         continue;
12948
12949       if (Tile[lx][ly] != new_element1)
12950         continue;
12951
12952       int sx = SX + x * ed_tilesize;
12953       int sy = SY + y * ed_tilesize;
12954       int from_sx = sx;
12955       int from_sy = sy;
12956       int to_sx = sx + ed_tilesize - 1;
12957       int to_sy = sy + ed_tilesize - 1;
12958
12959       DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
12960       DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
12961       DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
12962       DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
12963     }
12964   }
12965 }
12966
12967 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
12968 {
12969   char *template_filename_old = getLocalLevelTemplateFilename();
12970   char *template_filename_new =
12971     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
12972
12973   if (copyFile(template_filename_old, template_filename_new) != 0)
12974     Request("Cannot copy level template!", REQ_CONFIRM);
12975
12976   free(template_filename_new);
12977 }
12978
12979 static void HandleDrawingAreas(struct GadgetInfo *gi)
12980 {
12981   static boolean started_inside_drawing_area = FALSE;
12982   int id = gi->custom_id;
12983   int type_id = gi->custom_type_id;
12984   boolean button_press_event;
12985   boolean button_release_event;
12986   boolean inside_drawing_area = !gi->event.off_borders;
12987   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
12988   int actual_drawing_function;
12989   int button = gi->event.button;
12990   int new_element = BUTTON_ELEMENT(button);
12991   int sx = gi->event.x, sy = gi->event.y;
12992   int min_sx = 0, min_sy = 0;
12993   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
12994   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
12995   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
12996   int sx2 = gi->event.mx / mini_item_xsize;
12997   int sy2 = gi->event.my / mini_item_ysize;
12998   int dx = sx2 % 2;
12999   int dy = sy2 % 2;
13000   int lx = 0, ly = 0;
13001   int x, y;
13002
13003   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
13004   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
13005
13006   // make sure to stay inside drawing area boundaries
13007   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
13008   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
13009
13010   if (draw_level)
13011   {
13012     int min_lx = 0, min_ly = 0;
13013     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
13014
13015     // get positions inside level field
13016     lx = sx + level_xpos;
13017     ly = sy + level_ypos;
13018
13019     if (!IN_LEV_FIELD(lx, ly))
13020       inside_drawing_area = FALSE;
13021
13022     // make sure to stay inside level field boundaries
13023     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
13024     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
13025
13026     // correct drawing area positions accordingly
13027     sx = lx - level_xpos;
13028     sy = ly - level_ypos;
13029   }
13030
13031   // also correct MM wall-sized (double) drawing area positions accordingly
13032   if (sx2 / 2 < sx || sx2 / 2 > sx)
13033   {
13034     dx = (sx2 / 2 < sx ? 0 : 1);
13035     sx2 = sx * 2 + dx;
13036   }
13037   if (sy2 / 2 < sy || sy2 / 2 > sy)
13038   {
13039     dy = (sy2 / 2 < sy ? 0 : 1);
13040     sy2 = sy * 2 + dy;
13041   }
13042
13043   if (!button_press_event && !button_release_event)
13044   {
13045     static int last_sx = -1;
13046     static int last_sy = -1;
13047     static int last_sx2 = -1;
13048     static int last_sy2 = -1;
13049     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
13050     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13051                              isHiresTileElement(old_element) &&
13052                              isHiresDrawElement(new_element));
13053
13054     // prevent handling events for every pixel position when moving mouse
13055     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
13056         (sx2 == last_sx2 && sy2 == last_sy2))
13057       return;
13058
13059     last_sx = sx;
13060     last_sy = sy;
13061     last_sx2 = sx2;
13062     last_sy2 = sy2;
13063   }
13064
13065   if (button_press_event)
13066     started_inside_drawing_area = inside_drawing_area;
13067
13068   if (!started_inside_drawing_area)
13069     return;
13070
13071   if (!IS_VALID_BUTTON(button))
13072     return;
13073
13074   // handle info callback for each invocation of action callback
13075   gi->callback_info(gi);
13076
13077   // automatically switch to 'single item' drawing mode, if needed
13078   actual_drawing_function =
13079     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
13080      drawing_function : GADGET_ID_SINGLE_ITEMS);
13081
13082   // clicking into drawing area with pressed Control key picks element
13083   if (GetKeyModState() & KMOD_Control)
13084   {
13085     last_drawing_function = drawing_function;
13086     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
13087   }
13088
13089   if (GetKeyModState() & KMOD_Shift)
13090   {
13091     if (button_press_event || button_release_event)
13092       ResetIntelliDraw();
13093   }
13094
13095   SetDrawModeHiRes(-1);         // reset to normal draw mode
13096
13097   switch (actual_drawing_function)
13098   {
13099     case GADGET_ID_SINGLE_ITEMS:
13100       if (draw_level)
13101       {
13102         if (button_release_event)
13103         {
13104           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13105
13106           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
13107               !inside_drawing_area)
13108             DeleteBrushFromCursor();
13109
13110           break;
13111         }
13112
13113         if (draw_with_brush)
13114         {
13115           CopyBrushToLevel(sx, sy, button);
13116         }
13117         else
13118         {
13119           SetDrawModeHiRes(new_element);
13120
13121           if (IS_PLAYER_ELEMENT(new_element))
13122           {
13123             // remove player at old position
13124             for (y = 0; y < lev_fieldy; y++)
13125             {
13126               for (x = 0; x < lev_fieldx; x++)
13127               {
13128                 int old_element = Tile[x][y];
13129
13130                 if (IS_PLAYER_ELEMENT(old_element))
13131                 {
13132                   int replaced_with_element =
13133                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
13134                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
13135
13136                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
13137                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
13138
13139                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
13140                      old_element == EL_PLAYER_1 ? EL_EMPTY :
13141
13142                      new_element >= EL_PLAYER_1 &&
13143                      new_element <= EL_PLAYER_4 &&
13144                      new_element == old_element ? EL_EMPTY :
13145
13146                      old_element);
13147
13148                   SetElement(x, y, replaced_with_element);
13149                 }
13150               }
13151             }
13152           }
13153
13154           SetElementButton(lx, ly, dx, dy, new_element, button);
13155         }
13156       }
13157       else if (!button_release_event)
13158       {
13159         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
13160
13161         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
13162           DrawMiniGraphicExt(drawto,
13163                              gi->x + sx * MINI_TILEX,
13164                              gi->y + sy * MINI_TILEY,
13165                              el2edimg(new_element));
13166         else
13167           DrawFixedGraphicExt(drawto,
13168                               gi->x + sx * TILEX,
13169                               gi->y + sy * TILEY,
13170                               el2edimg(new_element), 0);
13171
13172         if (id == GADGET_ID_CUSTOM_GRAPHIC)
13173           new_element = GFX_ELEMENT(new_element);
13174
13175         drawingarea_info[type_id].value[pos] = new_element;
13176
13177         CopyElementPropertiesToGame(properties_element);
13178
13179         if (id == GADGET_ID_CUSTOM_GRAPHIC)
13180         {
13181           UpdateCustomElementGraphicGadgets();
13182
13183           FrameCounter = 0;     // restart animation frame counter
13184         }
13185       }
13186       break;
13187
13188     case GADGET_ID_CONNECTED_ITEMS:
13189       {
13190         static int last_sx = -1;
13191         static int last_sy = -1;
13192
13193         if (button_release_event)
13194           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13195
13196         SetDrawModeHiRes(new_element);
13197
13198         if (getDrawModeHiRes())
13199         {
13200           sx = sx2;
13201           sy = sy2;
13202         }
13203
13204         if (!button_press_event)
13205           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
13206
13207         last_sx = sx;
13208         last_sy = sy;
13209       }
13210       break;
13211
13212     case GADGET_ID_LINE:
13213     case GADGET_ID_ARC:
13214     case GADGET_ID_RECTANGLE:
13215     case GADGET_ID_FILLED_BOX:
13216       SetDrawModeHiRes(new_element);
13217
13218       if (getDrawModeHiRes())
13219       {
13220         sx = sx2;
13221         sy = sy2;
13222       }
13223       // FALLTHROUGH
13224     case GADGET_ID_GRAB_BRUSH:
13225     case GADGET_ID_TEXT:
13226       {
13227         static int last_sx = -1;
13228         static int last_sy = -1;
13229         static int start_sx = -1;
13230         static int start_sy = -1;
13231         void (*draw_func)(int, int, int, int, int, boolean);
13232
13233         if (drawing_function == GADGET_ID_LINE)
13234           draw_func = DrawLine;
13235         else if (drawing_function == GADGET_ID_ARC)
13236           draw_func = DrawArc;
13237         else if (drawing_function == GADGET_ID_RECTANGLE)
13238           draw_func = DrawBox;
13239         else if (drawing_function == GADGET_ID_FILLED_BOX)
13240           draw_func = DrawFilledBox;
13241         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
13242           draw_func = SelectArea;
13243         else // (drawing_function == GADGET_ID_TEXT)
13244           draw_func = SetTextCursor;
13245
13246         if (button_press_event)
13247         {
13248           draw_func(sx, sy, sx, sy, new_element, FALSE);
13249           start_sx = last_sx = sx;
13250           start_sy = last_sy = sy;
13251
13252           if (drawing_function == GADGET_ID_TEXT)
13253             DrawLevelText(0, 0, 0, TEXT_END);
13254         }
13255         else if (button_release_event)
13256         {
13257           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
13258           if (drawing_function == GADGET_ID_GRAB_BRUSH)
13259           {
13260             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
13261             CopyBrushToCursor(sx, sy);
13262             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
13263                           MB_LEFTBUTTON);
13264             draw_with_brush = TRUE;
13265           }
13266           else if (drawing_function == GADGET_ID_TEXT)
13267             DrawLevelText(sx, sy, 0, TEXT_INIT);
13268           else
13269             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13270         }
13271         else if (last_sx != sx || last_sy != sy)
13272         {
13273           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
13274           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
13275             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
13276           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
13277           last_sx = sx;
13278           last_sy = sy;
13279         }
13280       }
13281       break;
13282
13283     case GADGET_ID_FLOOD_FILL:
13284       if (button_press_event && Tile[lx][ly] != new_element)
13285       {
13286         if (IS_MM_WALL_EDITOR(new_element))
13287           FloodFillWall_MM(sx2, sy2, new_element);
13288         else
13289           FloodFill(lx, ly, new_element);
13290
13291         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13292         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13293       }
13294       break;
13295
13296     case GADGET_ID_PICK_ELEMENT:
13297       if (button_release_event)
13298         ClickOnGadget(level_editor_gadget[last_drawing_function],
13299                       MB_LEFTBUTTON);
13300       else if (draw_level)
13301         PickDrawingElement(button, Tile[lx][ly]);
13302       else
13303       {
13304         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
13305
13306         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
13307       }
13308
13309     default:
13310       break;
13311   }
13312
13313   // do not mark level as modified for certain non-level-changing gadgets
13314   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
13315        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
13316       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
13317       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
13318     return;
13319
13320   level.changed = TRUE;
13321 }
13322
13323 static void HandleCounterButtons(struct GadgetInfo *gi)
13324 {
13325   int gadget_id = gi->custom_id;
13326   int counter_id = gi->custom_type_id;
13327   int button = gi->event.button;
13328   int *counter_value = counterbutton_info[counter_id].value;
13329   int step = BUTTON_STEPSIZE(button) *
13330     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
13331
13332   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
13333   {
13334     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
13335     boolean released = (gi->event.type == GD_EVENT_RELEASED);
13336     boolean level_changed = LevelChanged();
13337
13338     if ((level_changed && pressed) || (!level_changed && released))
13339       return;
13340
13341     if (level_changed && !Request("Level has changed! Discard changes?",
13342                                   REQ_ASK))
13343     {
13344       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
13345         ModifyEditorCounterValue(counter_id, *counter_value);
13346
13347       return;
13348     }
13349   }
13350
13351   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
13352     *counter_value = gi->textinput.number_value;
13353   else
13354     ModifyEditorCounterValue(counter_id, *counter_value + step);
13355
13356   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
13357   {
13358     int last_game_engine_type = level.game_engine_type;
13359
13360     LoadLevel(level_nr);
13361     LoadScore(level_nr);
13362
13363     SaveLevelSetup_SeriesInfo();
13364
13365     TapeErase();
13366
13367     ResetUndoBuffer();
13368     DrawEditModeWindow();
13369
13370     if (level.game_engine_type != last_game_engine_type)
13371     {
13372       // update element selection list
13373       ReinitializeElementList();
13374       ModifyEditorElementList();
13375     }
13376
13377     return;
13378   }
13379
13380   switch (counter_id)
13381   {
13382     case ED_COUNTER_ID_YAMYAM_CONTENT:
13383       DrawYamYamContentAreas();
13384       break;
13385
13386     case ED_COUNTER_ID_BALL_CONTENT:
13387       DrawMagicBallContentAreas();
13388       break;
13389
13390     case ED_COUNTER_ID_ANDROID_CONTENT:
13391       DrawAndroidElementArea();
13392       break;
13393
13394     case ED_COUNTER_ID_GROUP_CONTENT:
13395       DrawGroupElementArea();
13396       CopyGroupElementPropertiesToGame(properties_element);
13397       break;
13398
13399     case ED_COUNTER_ID_INVENTORY_SIZE:
13400       DrawPlayerInitialInventoryArea(properties_element);
13401       break;
13402
13403     case ED_COUNTER_ID_MM_BALL_CONTENT:
13404       DrawMMBallContentArea();
13405       break;
13406
13407     case ED_COUNTER_ID_ENVELOPE_XSIZE:
13408     case ED_COUNTER_ID_ENVELOPE_YSIZE:
13409       DrawEnvelopeTextArea(-1);
13410       break;
13411
13412     case ED_COUNTER_ID_LEVEL_XSIZE:
13413     case ED_COUNTER_ID_LEVEL_YSIZE:
13414       lev_fieldx = level.fieldx;
13415       lev_fieldy = level.fieldy;
13416
13417       // check if resizing of level results in change of border border
13418       SetBorderElement();
13419
13420       break;
13421
13422     default:
13423       break;
13424   }
13425
13426   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
13427        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
13428       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
13429        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
13430     CopyElementPropertiesToGame(properties_element);
13431
13432   // do not mark level as modified for certain non-level-changing gadgets
13433   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
13434        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
13435       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
13436        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
13437     return;
13438
13439   level.changed = TRUE;
13440 }
13441
13442 static void HandleTextInputGadgets(struct GadgetInfo *gi)
13443 {
13444   int type_id = gi->custom_type_id;
13445
13446   strcpy(textinput_info[type_id].value, gi->textinput.value);
13447
13448   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
13449   {
13450     CopyElementPropertiesToGame(properties_element);
13451
13452     ModifyEditorElementList();  // update changed button info text
13453   }
13454
13455   // do not mark level as modified for certain non-level-changing gadgets
13456   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
13457       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
13458     return;
13459
13460   level.changed = TRUE;
13461 }
13462
13463 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
13464 {
13465   int type_id = gi->custom_type_id;
13466
13467   strncpy(textarea_info[type_id].value, gi->textarea.value,
13468           MAX_ENVELOPE_TEXT_LEN);
13469   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
13470
13471   level.changed = TRUE;
13472 }
13473
13474 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
13475 {
13476   int type_id = gi->custom_type_id;
13477   int value_old = *selectbox_info[type_id].value;
13478   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
13479
13480   *selectbox_info[type_id].value = value_new;
13481
13482   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
13483   {
13484     DrawLevelInfoWindow();
13485   }
13486   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
13487   {
13488     element_info[properties_element].current_change_page = gi->selectbox.index;
13489
13490     DrawPropertiesWindow();
13491   }
13492   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
13493             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
13494            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
13495             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
13496            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
13497   {
13498     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
13499     {
13500       // when changing action type, also check action mode and action arg
13501       if (value_old != value_new)
13502         setSelectboxSpecialActionVariablesIfNeeded();
13503
13504       DrawPropertiesChange();
13505     }
13506
13507     CopyElementPropertiesToGame(properties_element);
13508   }
13509   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
13510   {
13511     // update element selection list
13512     ReinitializeElementList();
13513     ModifyEditorElementList();
13514   }
13515
13516   // do not mark level as modified for certain non-level-changing gadgets
13517   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
13518       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
13519     return;
13520
13521   level.changed = TRUE;
13522 }
13523
13524 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
13525 {
13526   int type_id = gi->custom_type_id;
13527   int i;
13528
13529   if (type_id >= ED_TAB_BUTTON_ID_LEVELINFO_FIRST &&
13530       type_id <= ED_TAB_BUTTON_ID_LEVELINFO_LAST)
13531   {
13532     edit_mode_levelinfo = gi->custom_type_id;
13533
13534     DrawLevelInfoWindow();
13535   }
13536   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
13537            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
13538   {
13539     edit_mode_properties = gi->custom_type_id;
13540
13541     DrawPropertiesWindow();
13542   }
13543   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
13544            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
13545   {
13546     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
13547
13548     // backup original "level.field" (needed to track playfield changes)
13549     CopyPlayfield(level.field, TileBackup);
13550
13551     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
13552     CopyPlayfield(Tile, level.field);
13553
13554     if (new_template ||
13555         Request("Save this template and kill the old?", REQ_ASK))
13556       SaveLevelTemplate();
13557
13558     if (new_template)
13559       Request("Template saved!", REQ_CONFIRM);
13560
13561     // restore original "level.field" (needed to track playfield changes)
13562     CopyPlayfield(TileBackup, level.field);
13563   }
13564   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
13565   {
13566     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
13567
13568     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
13569         leveldir_current->readonly)
13570     {
13571       Request("This level set is read-only!", REQ_CONFIRM);
13572
13573       return;
13574     }
13575
13576     if (strEqual(levelset_name, ""))
13577     {
13578       Request("Please enter level set title!", REQ_CONFIRM);
13579
13580       return;
13581     }
13582
13583     if (strEqual(levelset_author, ""))
13584     {
13585       Request("Please enter level set author!", REQ_CONFIRM);
13586
13587       return;
13588     }
13589
13590     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
13591     {
13592       if (UpdateUserLevelSet(levelset_subdir,
13593                              levelset_name,
13594                              levelset_author,
13595                              levelset_num_levels))
13596       {
13597         Request("Level set updated!", REQ_CONFIRM);
13598       }
13599       else
13600       {
13601         Request("Updating level set failed!", REQ_CONFIRM);
13602       }
13603     }
13604     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
13605     {
13606       if (level.changed && !Request("Level has changed! Discard changes?",
13607                                      REQ_ASK))
13608         return;
13609
13610       if (CreateUserLevelSet(levelset_subdir,
13611                              levelset_name,
13612                              levelset_author,
13613                              levelset_num_levels,
13614                              levelset_use_levelset_artwork))
13615       {
13616         if (levelset_copy_level_template)
13617           CopyLevelTemplateToUserLevelSet(levelset_subdir);
13618
13619         Request("New level set created!", REQ_CONFIRM);
13620
13621         AddUserLevelSetToLevelInfo(levelset_subdir);
13622         ChangeEditorToLevelSet(levelset_subdir);
13623       }
13624       else
13625       {
13626         Request("Creating new level set failed!", REQ_CONFIRM);
13627       }
13628     }
13629   }
13630   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
13631            custom_element.num_change_pages < MAX_CHANGE_PAGES)
13632   {
13633     struct ElementInfo *ei = &element_info[properties_element];
13634
13635     // when modifying custom element, ask for copying level template
13636     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
13637       return;
13638
13639     setElementChangePages(ei, ei->num_change_pages + 1);
13640
13641     // set new change page to be new current change page
13642     ei->current_change_page = ei->num_change_pages - 1;
13643     ei->change = &ei->change_page[ei->current_change_page];
13644
13645     setElementChangeInfoToDefaults(ei->change);
13646
13647     DrawPropertiesWindow();
13648
13649     level.changed = TRUE;
13650   }
13651   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
13652            custom_element.num_change_pages > MIN_CHANGE_PAGES)
13653   {
13654     struct ElementInfo *ei = &element_info[properties_element];
13655
13656     // when modifying custom element, ask for copying level template
13657     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
13658       return;
13659
13660     // copy all change pages after change page to be deleted
13661     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
13662       ei->change_page[i] = ei->change_page[i + 1];
13663
13664     setElementChangePages(ei, ei->num_change_pages - 1);
13665
13666     DrawPropertiesWindow();
13667
13668     level.changed = TRUE;
13669   }
13670 }
13671
13672 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
13673 {
13674   int type_id = gi->custom_type_id;
13675
13676   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
13677       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
13678   {
13679     struct ElementInfo *ei = &element_info[properties_element];
13680     int step = BUTTON_STEPSIZE(gi->event.button);
13681
13682     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
13683     ei->current_change_page += step;
13684
13685     if (ei->current_change_page < 0)
13686       ei->current_change_page = 0;
13687     else if (ei->current_change_page >= ei->num_change_pages)
13688       ei->current_change_page = ei->num_change_pages - 1;
13689
13690     DrawPropertiesWindow();
13691   }
13692   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
13693            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
13694   {
13695     struct ElementInfo *ei = &element_info[properties_element];
13696     int current_change_page = ei->current_change_page;
13697
13698     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
13699     {
13700       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
13701         ei->change_page[current_change_page];
13702     }
13703     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
13704     {
13705       // when modifying custom element, ask for copying level template
13706       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
13707         return;
13708
13709       ei->change_page[current_change_page] =
13710         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
13711
13712       level.changed = TRUE;
13713     }
13714
13715     DrawPropertiesWindow();
13716   }
13717 }
13718
13719 static void HandleRadiobuttons(struct GadgetInfo *gi)
13720 {
13721   int type_id = gi->custom_type_id;
13722
13723   *radiobutton_info[type_id].value =
13724     radiobutton_info[type_id].checked_value;
13725
13726   // do not mark level as modified for certain non-level-changing gadgets
13727   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
13728       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
13729     return;
13730
13731   level.changed = TRUE;
13732 }
13733
13734 static void HandleCheckbuttons(struct GadgetInfo *gi)
13735 {
13736   int type_id = gi->custom_type_id;
13737
13738   *checkbutton_info[type_id].value ^= TRUE;
13739
13740   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
13741       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
13742       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
13743       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
13744          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
13745         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
13746          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
13747        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
13748   {
13749     CopyElementPropertiesToGame(properties_element);
13750   }
13751
13752   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
13753   {
13754     UpdateCustomElementGraphicGadgets();
13755   }
13756   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
13757            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
13758   {
13759     boolean template_related_changes_found = FALSE;
13760     int i;
13761
13762     // check if any custom, group or empty elements have been changed
13763     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
13764       if ((IS_CUSTOM_ELEMENT(i) ||
13765            IS_GROUP_ELEMENT(i) ||
13766            IS_EMPTY_ELEMENT(i)) &&
13767           element_info[i].modified_settings)
13768         template_related_changes_found = TRUE;
13769
13770     if (level.use_custom_template &&
13771         !fileExists(getGlobalLevelTemplateFilename()))
13772     {
13773       Request("No level template found!", REQ_CONFIRM);
13774
13775       level.use_custom_template = FALSE;
13776
13777       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
13778
13779       return;
13780     }
13781
13782     if (level.use_custom_template &&
13783         template_related_changes_found &&
13784         !Request("Discard changes and use level template?", REQ_ASK))
13785     {
13786       level.use_custom_template = FALSE;
13787
13788       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
13789
13790       return;
13791     }
13792
13793     if (!level.use_custom_template &&
13794         Request("Copy settings from level template?", REQ_ASK))
13795     {
13796       return;
13797     }
13798
13799     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
13800
13801     DrawEditModeWindow();
13802   }
13803   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
13804   {
13805     if (setup.editor.use_template_for_new_levels &&
13806         !fileExists(getGlobalLevelTemplateFilename()))
13807     {
13808       Request("No level template found!", REQ_CONFIRM);
13809
13810       return;
13811     }
13812
13813     if (setup.editor.use_template_for_new_levels &&
13814         level.changed &&
13815         !Request("Discard level and load template?", REQ_ASK))
13816     {
13817       return;
13818     }
13819
13820     if (!setup.editor.use_template_for_new_levels &&
13821         level.changed &&
13822         !Request("Discard level and use empty level?", REQ_ASK))
13823     {
13824       return;
13825     }
13826
13827     LoadLevel(level_nr);
13828     LoadScore(level_nr);
13829
13830     TapeErase();
13831
13832     ResetUndoBuffer();
13833     DrawEditModeWindow();
13834   }
13835   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
13836   {
13837     SetAutomaticNumberOfGemsNeeded();
13838   }
13839
13840   // do not mark level as modified for certain non-level-changing gadgets
13841   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
13842        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
13843       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
13844        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
13845        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
13846       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
13847     return;
13848
13849   level.changed = TRUE;
13850 }
13851
13852 static void HandleControlButtons(struct GadgetInfo *gi)
13853 {
13854   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
13855   static int last_edit_mode = ED_MODE_DRAWING;
13856   static int last_custom_copy_mode = -1;
13857   static int last_button = 0;
13858   int id = gi->custom_id;
13859   int button = gi->event.button;
13860   int step = BUTTON_STEPSIZE(button);
13861   int new_element = BUTTON_ELEMENT(button);
13862   int last_properties_element = properties_element;
13863   int x, y;
13864
13865   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
13866     DrawLevelText(0, 0, 0, TEXT_END);
13867
13868   if (id < ED_NUM_CTRL1_BUTTONS &&
13869       id != GADGET_ID_SINGLE_ITEMS &&
13870       id != GADGET_ID_PICK_ELEMENT &&
13871       edit_mode != ED_MODE_DRAWING &&
13872       drawing_function != GADGET_ID_PICK_ELEMENT &&
13873       !(GetKeyModState() & KMOD_Control))
13874     ChangeEditModeWindow(ED_MODE_DRAWING);
13875
13876   // element copy mode active, but no element button pressed => deactivate
13877   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
13878     last_custom_copy_mode = -1;
13879
13880   // when showing palette on element buttons, change element of button used
13881   if (editor.palette.show_on_element_buttons &&
13882       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
13883   {
13884     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
13885
13886     id = GADGET_ID_PALETTE;
13887   }
13888
13889   switch (id)
13890   {
13891     case GADGET_ID_SCROLL_LEFT:
13892       if (level_xpos >= 0)
13893       {
13894         if (lev_fieldx < ed_fieldx - 2)
13895           break;
13896
13897         level_xpos -= step;
13898         if (level_xpos < -1)
13899           level_xpos = -1;
13900         if (button == 1)
13901           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
13902         else
13903           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13904
13905         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
13906                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
13907       }
13908       break;
13909
13910     case GADGET_ID_SCROLL_RIGHT:
13911       if (level_xpos <= lev_fieldx - ed_fieldx)
13912       {
13913         if (lev_fieldx < ed_fieldx - 2)
13914           break;
13915
13916         level_xpos += step;
13917         if (level_xpos > lev_fieldx - ed_fieldx + 1)
13918           level_xpos = lev_fieldx - ed_fieldx + 1;
13919         if (button == 1)
13920           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
13921         else
13922           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13923
13924         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
13925                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
13926       }
13927       break;
13928
13929     case GADGET_ID_SCROLL_UP:
13930       if (level_ypos >= 0)
13931       {
13932         if (lev_fieldy < ed_fieldy - 2)
13933           break;
13934
13935         level_ypos -= step;
13936         if (level_ypos < -1)
13937           level_ypos = -1;
13938         if (button == 1)
13939           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
13940         else
13941           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13942
13943         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
13944                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
13945       }
13946       break;
13947
13948     case GADGET_ID_SCROLL_DOWN:
13949       if (level_ypos <= lev_fieldy - ed_fieldy)
13950       {
13951         if (lev_fieldy < ed_fieldy - 2)
13952           break;
13953
13954         level_ypos += step;
13955         if (level_ypos > lev_fieldy - ed_fieldy + 1)
13956           level_ypos = lev_fieldy - ed_fieldy + 1;
13957         if (button == 1)
13958           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
13959         else
13960           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13961
13962         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
13963                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
13964       }
13965       break;
13966
13967     case GADGET_ID_SCROLL_HORIZONTAL:
13968       level_xpos = gi->event.item_position - 1;
13969
13970       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13971       BackToFront();
13972
13973       break;
13974
13975     case GADGET_ID_SCROLL_VERTICAL:
13976       level_ypos = gi->event.item_position - 1;
13977
13978       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13979       BackToFront();
13980
13981       break;
13982
13983     case GADGET_ID_SCROLL_LIST_UP:
13984     case GADGET_ID_SCROLL_LIST_DOWN:
13985     case GADGET_ID_SCROLL_LIST_VERTICAL:
13986       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
13987         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
13988       else
13989       {
13990         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
13991         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
13992
13993         if (element_shift < 0)
13994           element_shift = 0;
13995         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
13996           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
13997
13998         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
13999                      GDI_SCROLLBAR_ITEM_POSITION,
14000                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14001       }
14002
14003       ModifyEditorElementList();
14004
14005       break;
14006
14007     case GADGET_ID_PROPERTIES:
14008       // always switch off element properties when they are already displayed
14009       last_properties_element = new_element;
14010     case GADGET_ID_ELEMENT_LEFT:
14011     case GADGET_ID_ELEMENT_MIDDLE:
14012     case GADGET_ID_ELEMENT_RIGHT:
14013       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
14014                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
14015                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
14016                             new_element);
14017
14018       if (edit_mode != ED_MODE_PROPERTIES)
14019       {
14020         last_edit_mode = edit_mode;
14021
14022         ChangeEditModeWindow(ED_MODE_PROPERTIES);
14023
14024         last_level_drawing_function = drawing_function;
14025         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
14026                       MB_LEFTBUTTON);
14027       }
14028       else if (properties_element != last_properties_element)
14029       {
14030         DrawEditModeWindow();
14031       }
14032       else
14033       {
14034         ChangeEditModeWindow(ED_MODE_DRAWING);
14035
14036         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
14037                       MB_LEFTBUTTON);
14038       }
14039       break;
14040
14041     case GADGET_ID_PALETTE:
14042       if (edit_mode != ED_MODE_PALETTE)
14043       {
14044         last_edit_mode = edit_mode;
14045
14046         ChangeEditModeWindow(ED_MODE_PALETTE);
14047       }
14048       else
14049       {
14050         ChangeEditModeWindow(last_edit_mode);
14051       }
14052       break;
14053
14054     case GADGET_ID_WRAP_LEFT:
14055       WrapLevel(-step, 0);
14056       break;
14057
14058     case GADGET_ID_WRAP_RIGHT:
14059       WrapLevel(step, 0);
14060       break;
14061
14062     case GADGET_ID_WRAP_UP:
14063       WrapLevel(0, -step);
14064       break;
14065
14066     case GADGET_ID_WRAP_DOWN:
14067       WrapLevel(0, step);
14068       break;
14069
14070     case GADGET_ID_SINGLE_ITEMS:
14071     case GADGET_ID_CONNECTED_ITEMS:
14072     case GADGET_ID_LINE:
14073     case GADGET_ID_ARC:
14074     case GADGET_ID_TEXT:
14075     case GADGET_ID_RECTANGLE:
14076     case GADGET_ID_FILLED_BOX:
14077     case GADGET_ID_FLOOD_FILL:
14078     case GADGET_ID_GRAB_BRUSH:
14079     case GADGET_ID_PICK_ELEMENT:
14080       if (drawing_function != GADGET_ID_PICK_ELEMENT)
14081         last_drawing_function = drawing_function;
14082       drawing_function = id;
14083       draw_with_brush = FALSE;
14084       break;
14085
14086     case GADGET_ID_RANDOM_PLACEMENT:
14087       RandomPlacement(new_element);
14088       break;
14089
14090     case GADGET_ID_ZOOM:
14091       // zoom level editor tile size in or out (or reset to default size)
14092       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
14093                      button == 2 ? ed_tilesize_default :
14094                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
14095
14096       // when using touch device, cycle through all zoom tilesizes
14097       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
14098         ed_tilesize = MICRO_TILESIZE;
14099
14100       // limit zoom level by upper and lower bound
14101       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
14102
14103       InitZoomLevelSettings(ed_tilesize);
14104
14105       if (edit_mode == ED_MODE_DRAWING)
14106       {
14107         DrawDrawingWindow();
14108
14109         // redraw zoom gadget info text
14110         PrintEditorGadgetInfoText(level_editor_gadget[id]);
14111       }
14112
14113       // save current editor zoom tilesize
14114       SaveSetup_AutoSetup();
14115
14116       break;
14117
14118     case GADGET_ID_CUSTOM_COPY_FROM:
14119     case GADGET_ID_CUSTOM_COPY_TO:
14120     case GADGET_ID_CUSTOM_EXCHANGE:
14121       last_custom_copy_mode = id;
14122       last_drawing_function = drawing_function;
14123       break;
14124
14125     case GADGET_ID_CUSTOM_COPY:
14126       CopyCustomElement(properties_element, -1, id);
14127       break;
14128
14129     case GADGET_ID_CUSTOM_PASTE:
14130       CopyCustomElement(-1, properties_element, id);
14131       break;
14132
14133     case GADGET_ID_UNDO:
14134       if (button < 0)   // keep button value (even if modifier keys are pressed)
14135         button = -button;
14136       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
14137         button = 3;
14138
14139       if (button == 1 && undo_buffer_steps == 0)
14140       {
14141         Request("Undo buffer empty!", REQ_CONFIRM);
14142
14143         break;
14144       }
14145       else if (button == 2)
14146       {
14147         break;
14148       }
14149       else if (button == 3 && redo_buffer_steps == 0)
14150       {
14151         Request("Redo buffer empty!", REQ_CONFIRM);
14152
14153         break;
14154       }
14155
14156       if (edit_mode != ED_MODE_DRAWING)
14157         ChangeEditModeWindow(ED_MODE_DRAWING);
14158
14159       if (button == 1)
14160       {
14161         // undo
14162
14163         undo_buffer_position =
14164           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
14165
14166         undo_buffer_steps--;
14167         redo_buffer_steps++;
14168       }
14169       else
14170       {
14171         // redo
14172
14173         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14174
14175         undo_buffer_steps++;
14176         redo_buffer_steps--;
14177       }
14178
14179       for (x = 0; x < lev_fieldx; x++)
14180         for (y = 0; y < lev_fieldy; y++)
14181           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
14182
14183       // check if undo operation forces change of border style
14184       CheckLevelBorderElement(FALSE);
14185
14186       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14187
14188       break;
14189
14190     case GADGET_ID_INFO:
14191       if (edit_mode != ED_MODE_INFO)
14192       {
14193         last_edit_mode = edit_mode;
14194
14195         ChangeEditModeWindow(ED_MODE_INFO);
14196       }
14197       else
14198       {
14199         ChangeEditModeWindow(ED_MODE_DRAWING);
14200       }
14201       break;
14202
14203     case GADGET_ID_CLEAR:
14204       if (edit_mode != ED_MODE_DRAWING)
14205         ChangeEditModeWindow(ED_MODE_DRAWING);
14206
14207       for (x = 0; x < MAX_LEV_FIELDX; x++)
14208         for (y = 0; y < MAX_LEV_FIELDY; y++)
14209           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
14210
14211       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
14212
14213       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14214       break;
14215
14216     case GADGET_ID_SAVE:
14217     {
14218       // saving read-only levels into personal level set modifies global vars
14219       // "leveldir_current" and "level_nr"; restore them after saving level
14220       LevelDirTree *leveldir_former = leveldir_current;
14221       int level_nr_former = level_nr;
14222       char *level_filename;
14223       boolean new_level;
14224
14225       if (leveldir_current->readonly &&
14226           !PrepareSavingIntoPersonalLevelSet())
14227         break;
14228
14229       level_filename = getDefaultLevelFilename(level_nr);
14230       new_level = !fileExists(level_filename);
14231
14232       if (new_level ||
14233           Request("Save this level and kill the old?", REQ_ASK))
14234       {
14235         if (leveldir_former->readonly)
14236           ModifyLevelInfoForSavingIntoPersonalLevelSet(leveldir_former->name);
14237
14238         SetAutomaticNumberOfGemsNeeded();
14239
14240         CopyPlayfield(Tile, level.field);
14241         SaveLevel(level_nr);
14242
14243         level.changed = FALSE;
14244
14245         if (new_level)
14246         {
14247           char level_saved_msg[64];
14248
14249           if (leveldir_former->readonly)
14250             sprintf(level_saved_msg,
14251                     "Level saved as level %d into personal level set!",
14252                     level_nr);
14253           else
14254             strcpy(level_saved_msg, "Level saved!");
14255
14256           Request(level_saved_msg, REQ_CONFIRM);
14257         }
14258       }
14259
14260       // "cd" back to copied-from levelset (in case of saved read-only level)
14261       leveldir_current = leveldir_former;
14262       level_nr = level_nr_former;
14263
14264       break;
14265     }
14266
14267     case GADGET_ID_TEST:
14268       if (LevelChanged())
14269         level.game_version = GAME_VERSION_ACTUAL;
14270
14271       CopyPlayfield(level.field, TileBackup);
14272       CopyPlayfield(Tile, level.field);
14273
14274       CopyNativeLevel_RND_to_Native(&level);
14275
14276       UnmapLevelEditorGadgets();
14277       UndrawSpecialEditorDoor();
14278
14279       CloseDoor(DOOR_CLOSE_ALL);
14280
14281       // needed before playing if editor playfield area has different size
14282       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
14283
14284       // redraw_mask = REDRAW_ALL;
14285
14286       level_editor_test_game = TRUE;
14287
14288       StartGameActions(FALSE, setup.autorecord, level.random_seed);
14289
14290       break;
14291
14292     case GADGET_ID_EXIT:
14293       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
14294       break;
14295
14296     default:
14297       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
14298           id <= GADGET_ID_ELEMENTLIST_LAST)
14299       {
14300         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
14301
14302         new_element = editor_elements[element_position + element_shift];
14303
14304         if (IS_EDITOR_CASCADE(new_element))
14305         {
14306           int i;
14307
14308           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
14309           {
14310             int *cascade_element= &(*editor_elements_info[i].headline_list)[0];
14311             boolean *cascade_value=editor_elements_info[i].setup_cascade_value;
14312
14313             if (*cascade_element == new_element)
14314             {
14315               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
14316               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
14317
14318               // update element selection list
14319               ReinitializeElementList();
14320               ModifyEditorElementList();
14321
14322               // update cascading gadget info text
14323               PrintEditorGadgetInfoText(level_editor_gadget[id]);
14324
14325               // save current editor cascading state
14326               SaveSetup_EditorCascade();
14327
14328               break;
14329             }
14330           }
14331
14332           break;
14333         }
14334
14335         if (last_custom_copy_mode != -1)
14336         {
14337           if (CopyCustomElement(properties_element, new_element,
14338                                 last_custom_copy_mode))
14339           {
14340             ClickOnGadget(level_editor_gadget[last_drawing_function],
14341                           MB_LEFTBUTTON);
14342
14343             last_custom_copy_mode = -1;
14344           }
14345
14346           break;
14347         }
14348
14349         // change element of button used to show palette
14350         if (editor.palette.show_on_element_buttons)
14351           button = last_button;
14352
14353         PickDrawingElement(button, new_element);
14354
14355         if (!stick_element_properties_window &&
14356             drawing_function != GADGET_ID_PICK_ELEMENT &&
14357             !(GetKeyModState() & KMOD_Control))
14358         {
14359           properties_element = new_element;
14360           if (edit_mode == ED_MODE_PROPERTIES)
14361             DrawPropertiesWindow();
14362         }
14363
14364         if (drawing_function == GADGET_ID_PICK_ELEMENT)
14365           ClickOnGadget(level_editor_gadget[last_drawing_function],
14366                         MB_LEFTBUTTON);
14367
14368         if (!use_permanent_palette)
14369           ChangeEditModeWindow(last_edit_mode);
14370       }
14371 #ifdef DEBUG
14372       else if (gi->event.type == GD_EVENT_PRESSED)
14373         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
14374       else if (gi->event.type == GD_EVENT_RELEASED)
14375         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
14376       else if (gi->event.type == GD_EVENT_MOVING)
14377         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
14378       else
14379         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
14380 #endif
14381       break;
14382   }
14383 }
14384
14385 void HandleLevelEditorKeyInput(Key key)
14386 {
14387   char letter = getCharFromKey(key);
14388
14389   if (drawing_function == GADGET_ID_TEXT &&
14390       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
14391   {
14392     if (letter)
14393       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
14394     else if (key == KSYM_Delete || key == KSYM_BackSpace)
14395       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
14396     else if (key == KSYM_Return)
14397       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
14398     else if (key == KSYM_Escape)
14399       DrawLevelText(0, 0, 0, TEXT_END);
14400
14401     return;
14402   }
14403
14404   int id = GADGET_ID_NONE;
14405   int new_element_shift = element_shift;
14406   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
14407   int button = MB_LEFTBUTTON;
14408   int i;
14409
14410   switch (key)
14411   {
14412     case KSYM_Left:
14413       id = GADGET_ID_SCROLL_LEFT;
14414       break;
14415     case KSYM_Right:
14416       id = GADGET_ID_SCROLL_RIGHT;
14417       break;
14418     case KSYM_Up:
14419       id = GADGET_ID_SCROLL_UP;
14420       break;
14421     case KSYM_Down:
14422       id = GADGET_ID_SCROLL_DOWN;
14423       break;
14424
14425     case KSYM_Page_Up:
14426     case KSYM_Page_Down:
14427       step *= (key == KSYM_Page_Up ? -1 : +1);
14428       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
14429
14430       if (element_shift < 0)
14431         element_shift = 0;
14432       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14433         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14434
14435       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14436                    GDI_SCROLLBAR_ITEM_POSITION,
14437                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14438
14439       ModifyEditorElementList();
14440
14441       break;
14442
14443     case KSYM_Home:
14444     case KSYM_End:
14445       element_shift = (key == KSYM_Home ? 0 :
14446                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
14447
14448       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14449                    GDI_SCROLLBAR_ITEM_POSITION,
14450                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14451
14452       ModifyEditorElementList();
14453
14454       break;
14455
14456     case KSYM_Insert:
14457     case KSYM_Delete:
14458
14459       // this is needed to prevent interference with running "True X-Mouse"
14460       if (GetKeyModStateFromEvents() & KMOD_Control)
14461         break;
14462
14463       // check for last or next editor cascade block in element list
14464       for (i = 0; i < num_editor_elements; i++)
14465       {
14466         if ((key == KSYM_Insert && i == element_shift) ||
14467             (key == KSYM_Delete && new_element_shift > element_shift))
14468           break;
14469
14470         // jump to next cascade block (or to start of element list)
14471         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
14472           new_element_shift = i;
14473       }
14474
14475       if (i < num_editor_elements)
14476         element_shift = new_element_shift;
14477
14478       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14479         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14480
14481       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14482                    GDI_SCROLLBAR_ITEM_POSITION,
14483                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14484
14485       ModifyEditorElementList();
14486
14487       break;
14488
14489     case KSYM_Escape:
14490       if (edit_mode == ED_MODE_DRAWING)
14491         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
14492       else if (edit_mode == ED_MODE_INFO)
14493         HandleControlButtons(level_editor_gadget[GADGET_ID_INFO]);
14494       else if (edit_mode == ED_MODE_PROPERTIES)
14495         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
14496       else if (edit_mode == ED_MODE_PALETTE)
14497         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
14498       else              // should never happen
14499         ChangeEditModeWindow(ED_MODE_DRAWING);
14500
14501       break;
14502
14503     default:
14504       break;
14505   }
14506
14507   if (id != GADGET_ID_NONE)
14508     ClickOnGadget(level_editor_gadget[id], button);
14509   else if (letter == '1' || letter == '?')
14510     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
14511   else if (letter == '2')
14512     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
14513   else if (letter == '3')
14514     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
14515   else if (letter == '.')
14516     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
14517   else if (letter == 'U')
14518     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14519   else if (letter == '-' || key == KSYM_KP_Subtract)
14520     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
14521   else if (letter == '0' || key == KSYM_KP_0)
14522     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
14523   else if (letter == '+' || key == KSYM_KP_Add ||
14524            letter == '=')       // ("Shift-=" is "+" on US keyboards)
14525     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
14526   else if (key == KSYM_Return ||
14527            key == KSYM_space ||
14528            key == setup.shortcut.toggle_pause)
14529     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
14530   else
14531     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
14532       if (letter && letter == controlbutton_info[i].shortcut)
14533         if (!anyTextGadgetActive())
14534           ClickOnGadget(level_editor_gadget[i], button);
14535 }
14536
14537 static void HandleLevelEditorIdle_Properties(void)
14538 {
14539   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
14540   int x = editor.settings.element_graphic.x + element_border;
14541   int y = editor.settings.element_graphic.y + element_border;
14542   static DelayCounter action_delay = { 0 };
14543   int i;
14544
14545   action_delay.value = GameFrameDelay;
14546
14547   if (!DelayReached(&action_delay))
14548     return;
14549
14550   for (i = 0; i < ED_NUM_SELECTBOX; i++)
14551   {
14552     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
14553
14554     if (gi->mapped && gi->active && gi->selectbox.open)
14555       return;
14556   }
14557
14558   DrawEditorElementAnimation(SX + x, SY + y);
14559
14560   redraw_mask |= REDRAW_FIELD;
14561
14562   FrameCounter++;       // increase animation frame counter
14563 }
14564
14565 static void HandleLevelEditorIdle_Drawing(void)
14566 {
14567   static boolean last_highlighted = FALSE;
14568   boolean highlighted = (GetKeyModState() & KMOD_Alt);
14569
14570   if (highlighted != last_highlighted)
14571   {
14572     DrawAreaElementHighlight(highlighted);
14573
14574     last_highlighted = highlighted;
14575
14576     redraw_mask |= REDRAW_FIELD;
14577   }
14578 }
14579
14580 void HandleLevelEditorIdle(void)
14581 {
14582   if (edit_mode == ED_MODE_PROPERTIES)
14583     HandleLevelEditorIdle_Properties();
14584   else if (edit_mode == ED_MODE_DRAWING)
14585     HandleLevelEditorIdle_Drawing();
14586 }
14587
14588 static void ClearEditorGadgetInfoText(void)
14589 {
14590   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
14591 }
14592
14593 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
14594 {
14595   char infotext[MAX_OUTPUT_LINESIZE + 1];
14596   int max_infotext_len = getMaxInfoTextLength();
14597
14598   if (gi == NULL || strlen(gi->info_text) == 0)
14599     return;
14600
14601   strncpy(infotext, gi->info_text, max_infotext_len);
14602   infotext[max_infotext_len] = '\0';
14603
14604   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
14605   {
14606     int key = controlbutton_info[gi->custom_id].shortcut;
14607
14608     if (key)
14609     {
14610       char shortcut[MAX_OUTPUT_LINESIZE + 1];
14611
14612       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
14613         sprintf(shortcut, " ('.' or '%c')", key);
14614       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
14615         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
14616       else if (gi->custom_id == GADGET_ID_TEST)
14617         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
14618       else if (gi->custom_id == GADGET_ID_UNDO)
14619         sprintf(shortcut, " ('%c/Shift-U')", key);
14620       else if (gi->custom_id == GADGET_ID_ZOOM)
14621         sprintf(shortcut, " ('%c', '0', '-')", key);
14622       else
14623         sprintf(shortcut, " ('%s%c')",
14624                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
14625
14626       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
14627         strcat(infotext, shortcut);
14628     }
14629   }
14630
14631   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
14632 }
14633
14634 void HandleEditorGadgetInfoText(void *ptr)
14635 {
14636   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
14637
14638   if (game_status != GAME_MODE_EDITOR)
14639     return;
14640
14641   ClearEditorGadgetInfoText();
14642
14643   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
14644     return;
14645
14646   // misuse this function to delete brush cursor, if needed
14647   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
14648     DeleteBrushFromCursor();
14649
14650   PrintEditorGadgetInfoText(gi);
14651 }
14652
14653 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
14654 {
14655   int id = gi->custom_id;
14656   int type_id = gi->custom_type_id;
14657   int sx = gi->event.x;
14658   int sy = gi->event.y;
14659   int lx = sx + level_xpos;
14660   int ly = sy + level_ypos;
14661   int min_sx = 0, min_sy = 0;
14662   int max_sx = gi->drawing.area_xsize - 1;
14663   int max_sy = gi->drawing.area_ysize - 1;
14664   int actual_drawing_function = drawing_function;
14665   int max_infotext_len = getMaxInfoTextLength();
14666   char infotext[MAX_OUTPUT_LINESIZE + 1];
14667
14668   infotext[0] = '\0';           // start with empty info text
14669
14670   // pressed Control key: simulate picking element
14671   if (GetKeyModState() & KMOD_Control)
14672     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
14673
14674   ClearEditorGadgetInfoText();
14675
14676   if (gi->event.type == GD_EVENT_INFO_LEAVING)
14677     return;
14678
14679   // make sure to stay inside drawing area boundaries
14680   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
14681   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
14682
14683   if (id == GADGET_ID_DRAWING_LEVEL)
14684   {
14685     if (button_status)
14686     {
14687       int min_lx = 0, min_ly = 0;
14688       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
14689
14690       // get positions inside level field
14691       lx = sx + level_xpos;
14692       ly = sy + level_ypos;
14693
14694       // make sure to stay inside level field boundaries
14695       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
14696       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
14697
14698       // correct drawing area positions accordingly
14699       sx = lx - level_xpos;
14700       sy = ly - level_ypos;
14701     }
14702
14703     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
14704     {
14705       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
14706       {
14707         static int start_lx = 0;
14708         static int start_ly = 0;
14709         char *text;
14710
14711         if (gi->event.type == GD_EVENT_PRESSED)
14712         {
14713           start_lx = lx;
14714           start_ly = ly;
14715         }
14716
14717         switch (actual_drawing_function)
14718         {
14719           case GADGET_ID_SINGLE_ITEMS:
14720             text = "Drawing single items";
14721             break;
14722           case GADGET_ID_CONNECTED_ITEMS:
14723             text = "Drawing connected items";
14724             break;
14725           case GADGET_ID_LINE:
14726             text = "Drawing line";
14727             break;
14728           case GADGET_ID_ARC:
14729             text = "Drawing arc";
14730             break;
14731           case GADGET_ID_TEXT:
14732             text = "Setting text cursor";
14733             break;
14734           case GADGET_ID_RECTANGLE:
14735             text = "Drawing rectangle";
14736             break;
14737           case GADGET_ID_FILLED_BOX:
14738             text = "Drawing filled box";
14739             break;
14740           case GADGET_ID_FLOOD_FILL:
14741             text = "Flood fill";
14742             break;
14743           case GADGET_ID_GRAB_BRUSH:
14744             text = "Grabbing brush";
14745             break;
14746           case GADGET_ID_PICK_ELEMENT:
14747             text = "Picking element";
14748             break;
14749
14750           default:
14751             text = "Drawing position";
14752             break;
14753         }
14754
14755         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14756           sprintf(infotext, "%s: %d, %d", text, lx, ly);
14757         else
14758           sprintf(infotext, "%s: %d, %d", text,
14759                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
14760       }
14761       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14762         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
14763       else
14764         sprintf(infotext, "Level position: %d, %d", lx, ly);
14765     }
14766
14767     // misuse this function to draw brush cursor, if needed
14768     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
14769     {
14770       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
14771         CopyBrushToCursor(sx, sy);
14772       else
14773         DeleteBrushFromCursor();
14774     }
14775
14776     if (!draw_with_brush)
14777       UpdateBrushPosition(sx, sy);
14778   }
14779   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14780   {
14781     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14782     int element = drawingarea_info[type_id].value[pos];
14783
14784     strncpy(infotext, getElementInfoText(element), max_infotext_len);
14785   }
14786   else
14787   {
14788     if (id == GADGET_ID_CUSTOM_CONTENT)
14789       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
14790     else if (id == GADGET_ID_GROUP_CONTENT)
14791       sprintf(infotext, "group element position: %d", sx + 1);
14792     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
14793              id <= GADGET_ID_YAMYAM_CONTENT_7)
14794       sprintf(infotext, "content area %d position: %d, %d",
14795               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
14796     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
14797              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
14798       sprintf(infotext, "content area %d position: %d, %d",
14799               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
14800     else if (id == GADGET_ID_ANDROID_CONTENT)
14801       sprintf(infotext, "android element position: %d", sx + 1);
14802     else if (drawingarea_info[type_id].infotext != NULL)
14803       strcpy(infotext, drawingarea_info[type_id].infotext);
14804   }
14805
14806   infotext[max_infotext_len] = '\0';
14807
14808   if (strlen(infotext) > 0)
14809     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
14810 }
14811
14812 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
14813                             boolean quick_quit)
14814 {
14815   if (!ask_if_level_has_changed ||
14816       !LevelChanged() ||
14817       Request("Level has changed! Exit without saving?",
14818               REQ_ASK | REQ_STAY_OPEN))
14819   {
14820     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
14821     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
14822
14823     // draw normal door
14824     UndrawSpecialEditorDoor();
14825
14826     // use door animation if door 1 viewport is unchanged and contains toolbox
14827     if (useEditorDoorAnimation())
14828       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
14829
14830     // close editor doors if viewport definition is the same as in main menu
14831     if (vp_door_1->x      == DX     &&
14832         vp_door_1->y      == DY     &&
14833         vp_door_1->width  == DXSIZE &&
14834         vp_door_1->height == DYSIZE &&
14835         vp_door_2->x      == VX     &&
14836         vp_door_2->y      == VY     &&
14837         vp_door_2->width  == VXSIZE &&
14838         vp_door_2->height == VYSIZE)
14839       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
14840     else
14841       SetDoorState(DOOR_CLOSE_2);
14842
14843     BackToFront();
14844
14845     if (quick_quit)
14846       FadeSkipNextFadeIn();
14847
14848     SetGameStatus(GAME_MODE_MAIN);
14849
14850     DrawMainMenu();
14851   }
14852   else
14853   {
14854     if (!global.use_envelope_request)
14855     {
14856       CloseDoor(DOOR_CLOSE_1);
14857       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
14858     }
14859   }
14860 }