src/editor.c

   1 // ============================================================================
   2 // Rocks'n'Diamonds - McDuffin Strikes Back!
   3 // ----------------------------------------------------------------------------
   4 // (c) 1995-2014 by Artsoft Entertainment
   5 //                  Holger Schemel
   6 //                  info@artsoft.org
   7 //                  https://www.artsoft.org/
   8 // ----------------------------------------------------------------------------
   9 // editor.c
  10 // ============================================================================
  11
  12 #include <math.h>
  13
  14 #include "libgame/libgame.h"
  15
  16 #include "editor.h"
  17 #include "screens.h"
  18 #include "tools.h"
  19 #include "files.h"
  20 #include "game.h"
  21 #include "init.h"
  22 #include "tape.h"
  23
  24
  25 #define INFOTEXT_UNKNOWN_ELEMENT        "unknown"
  26
  27
  28 // ----------------------------------------------------------------------------
  29 // screen and artwork graphic pixel position definitions
  30 // ----------------------------------------------------------------------------
  31
  32 // values for the control window
  33 #define ED_CTRL1_BUTTONS_HORIZ          4       // toolbox
  34 #define ED_CTRL1_BUTTONS_VERT           4
  35 #define ED_CTRL2_BUTTONS_HORIZ          3       // level
  36 #define ED_CTRL2_BUTTONS_VERT           2
  37 #define ED_CTRL3_BUTTONS_HORIZ          3       // CE and GE
  38 #define ED_CTRL3_BUTTONS_VERT           1
  39 #define ED_CTRL4_BUTTONS_HORIZ          2       // CE and GE
  40 #define ED_CTRL4_BUTTONS_VERT           1
  41 #define ED_CTRL5_BUTTONS_HORIZ          1       // properties
  42 #define ED_CTRL5_BUTTONS_VERT           1
  43 #define ED_CTRL6_BUTTONS_HORIZ          3       // properties
  44 #define ED_CTRL6_BUTTONS_VERT           1
  45 #define ED_CTRL7_BUTTONS_HORIZ          1       // palette
  46 #define ED_CTRL7_BUTTONS_VERT           1
  47
  48 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  49 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  50 #define ED_NUM_CTRL3_BUTTONS   (ED_CTRL3_BUTTONS_HORIZ * ED_CTRL3_BUTTONS_VERT)
  51 #define ED_NUM_CTRL4_BUTTONS   (ED_CTRL4_BUTTONS_HORIZ * ED_CTRL4_BUTTONS_VERT)
  52 #define ED_NUM_CTRL5_BUTTONS   (ED_CTRL5_BUTTONS_HORIZ * ED_CTRL5_BUTTONS_VERT)
  53 #define ED_NUM_CTRL6_BUTTONS   (ED_CTRL6_BUTTONS_HORIZ * ED_CTRL6_BUTTONS_VERT)
  54 #define ED_NUM_CTRL7_BUTTONS   (ED_CTRL7_BUTTONS_HORIZ * ED_CTRL7_BUTTONS_VERT)
  55 #define ED_NUM_CTRL1_2_BUTTONS (ED_NUM_CTRL1_BUTTONS   + ED_NUM_CTRL2_BUTTONS)
  56 #define ED_NUM_CTRL1_3_BUTTONS (ED_NUM_CTRL1_2_BUTTONS + ED_NUM_CTRL3_BUTTONS)
  57 #define ED_NUM_CTRL1_4_BUTTONS (ED_NUM_CTRL1_3_BUTTONS + ED_NUM_CTRL4_BUTTONS)
  58 #define ED_NUM_CTRL1_5_BUTTONS (ED_NUM_CTRL1_4_BUTTONS + ED_NUM_CTRL5_BUTTONS)
  59 #define ED_NUM_CTRL1_6_BUTTONS (ED_NUM_CTRL1_5_BUTTONS + ED_NUM_CTRL6_BUTTONS)
  60 #define ED_NUM_CTRL1_7_BUTTONS (ED_NUM_CTRL1_6_BUTTONS + ED_NUM_CTRL7_BUTTONS)
  61 #define ED_NUM_CTRL_BUTTONS    ED_NUM_CTRL1_7_BUTTONS
  62
  63 // values for the element list
  64 #define ED_ELEMENTLIST_XPOS             (editor.palette.x)
  65 #define ED_ELEMENTLIST_YPOS             (editor.palette.y)
  66 #define ED_ELEMENTLIST_XSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].width)
  67 #define ED_ELEMENTLIST_YSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].height)
  68 #define ED_ELEMENTLIST_COLS             MAX(1, editor.palette.cols)
  69 #define ED_ELEMENTLIST_ROWS             MAX(1, editor.palette.rows)
  70 #define ED_ELEMENTLIST_BUTTONS_HORIZ    (ED_ELEMENTLIST_COLS)
  71 #define ED_ELEMENTLIST_BUTTONS_VERT     (ED_ELEMENTLIST_ROWS)
  72 #define ED_NUM_ELEMENTLIST_BUTTONS      (ED_ELEMENTLIST_BUTTONS_HORIZ * \
  73                                          ED_ELEMENTLIST_BUTTONS_VERT)
  74
  75 // standard distances
  76 #define ED_GADGET_NORMAL_DISTANCE       (editor.gadget.normal_spacing)
  77 #define ED_GADGET_SMALL_DISTANCE        (editor.gadget.small_spacing)
  78 #define ED_GADGET_TINY_DISTANCE         (editor.gadget.tiny_spacing)
  79 #define ED_GADGET_LINE_DISTANCE         (editor.gadget.line_spacing)
  80 #define ED_GADGET_TEXT_DISTANCE         (editor.gadget.text_spacing)
  81 #define ED_TAB_BAR_HEIGHT               (editor.gadget.separator_line.height)
  82 #define ED_DRAWINGAREA_TEXT_DISTANCE    (ED_GADGET_TEXT_DISTANCE +      \
  83                                          ED_DRAWINGAREA_BORDER_SIZE)
  84 #define ED_GADGET_SPACE_DISTANCE        (getFontWidth(FONT_TEXT_1))
  85
  86 // values for drawingarea gadgets
  87 #define IMG_BORDER_1                    IMG_EDITOR_ELEMENT_BORDER
  88 #define IMG_BORDER_2                    IMG_EDITOR_ELEMENT_BORDER_INPUT
  89 #define ED_ELEMENT_BORDER               (graphic_info[IMG_BORDER_1].border_size)
  90 #define ED_DRAWINGAREA_BORDER_SIZE      (graphic_info[IMG_BORDER_2].border_size)
  91 #define ED_DRAWINGAREA_TILE_SIZE        (editor.drawingarea.tile_size)
  92
  93 // values for checkbutton gadgets
  94 #define ED_CHECKBUTTON_XSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].width)
  95 #define ED_CHECKBUTTON_YSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].height)
  96
  97 #define ED_TABBUTTON_XSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].width)
  98 #define ED_TABBUTTON_YSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].height)
  99
 100 #define ED_SETTINGS_LEVEL_TABS_X        (editor.settings.tabs.x)
 101 #define ED_SETTINGS_LEVEL_TABS_Y        (editor.settings.tabs.y)
 102 #define ED_SETTINGS_ELEMENT_TABS_X      (editor.settings.tabs.x)
 103 #define ED_SETTINGS_ELEMENT_TABS_Y      (editor.settings.tabs.y +       \
 104                                          editor.settings.tabs.yoffset2)
 105
 106 #define ED_SETTINGS_TABS_XOFFSET        (editor.settings.tabs.draw_xoffset)
 107 #define ED_SETTINGS_TABS_YOFFSET        (editor.settings.tabs.draw_yoffset)
 108
 109 #define ED_LEVEL_TABS_XSTART            (ED_SETTINGS_LEVEL_TABS_X)
 110 #define ED_LEVEL_TABS_YSTART            (ED_SETTINGS_LEVEL_TABS_Y)
 111 #define ED_LEVEL_SETTINGS_XSTART        (ED_SETTINGS_LEVEL_TABS_X +     \
 112                                          ED_SETTINGS_TABS_XOFFSET)
 113 #define ED_LEVEL_SETTINGS_YSTART        (ED_SETTINGS_LEVEL_TABS_Y +     \
 114                                          ED_TABBUTTON_YSIZE +           \
 115                                          ED_GADGET_TINY_DISTANCE +      \
 116                                          ED_TAB_BAR_HEIGHT +            \
 117                                          ED_SETTINGS_TABS_YOFFSET +     \
 118                                          getFontHeight(FONT_TEXT_1) +   \
 119                                          ED_GADGET_TEXT_DISTANCE)
 120 #define ED_ELEMENT_TABS_XSTART          (ED_SETTINGS_ELEMENT_TABS_X)
 121 #define ED_ELEMENT_TABS_YSTART          (ED_SETTINGS_ELEMENT_TABS_Y)
 122 #define ED_ELEMENT_SETTINGS_XSTART      (ED_SETTINGS_ELEMENT_TABS_X +   \
 123                                          ED_SETTINGS_TABS_XOFFSET)
 124 #define ED_ELEMENT_SETTINGS_YSTART      (ED_SETTINGS_ELEMENT_TABS_Y +   \
 125                                          ED_TABBUTTON_YSIZE +           \
 126                                          ED_GADGET_TINY_DISTANCE +      \
 127                                          ED_TAB_BAR_HEIGHT +            \
 128                                          ED_SETTINGS_TABS_YOFFSET)
 129
 130 #define ED_SETTINGS_XOFFSET             (ED_CHECKBUTTON_XSIZE +         \
 131                                          ED_GADGET_TEXT_DISTANCE)
 132 #define ED_SETTINGS_YOFFSET             (ED_CHECKBUTTON_YSIZE +         \
 133                                          ED_GADGET_LINE_DISTANCE)
 134
 135 #define ED_POS_RANGE                    (10000)
 136 #define ED_POS_LEVEL_TABS_FIRST         (1 * ED_POS_RANGE)
 137 #define ED_POS_LEVEL_TABS_LAST          (2 * ED_POS_RANGE - 1)
 138 #define ED_POS_LEVEL_SETTINGS_FIRST     (2 * ED_POS_RANGE)
 139 #define ED_POS_LEVEL_SETTINGS_LAST      (3 * ED_POS_RANGE - 1)
 140 #define ED_POS_ELEMENT_TABS_FIRST       (3 * ED_POS_RANGE)
 141 #define ED_POS_ELEMENT_TABS_LAST        (4 * ED_POS_RANGE - 1)
 142 #define ED_POS_ELEMENT_SETTINGS_FIRST   (4 * ED_POS_RANGE)
 143 #define ED_POS_ELEMENT_SETTINGS_LAST    (5 * ED_POS_RANGE - 1)
 144
 145 #define ED_LEVEL_TABS_XPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 146 #define ED_LEVEL_TABS_YPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 147
 148 #define ED_LEVEL_SETTINGS_XPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 149 #define ED_LEVEL_SETTINGS_YPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 150
 151 #define ED_ELEMENT_TABS_XPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 152 #define ED_ELEMENT_TABS_YPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 153
 154 #define ED_ELEMENT_SETTINGS_XPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 155 #define ED_ELEMENT_SETTINGS_YPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 156
 157 #define IS_POS_LEVEL_TABS(n)          ((n) >= ED_POS_LEVEL_TABS_FIRST && \
 158                                        (n) <= ED_POS_LEVEL_TABS_LAST)
 159 #define IS_POS_LEVEL_SETTINGS(n)      ((n) >= ED_POS_LEVEL_SETTINGS_FIRST && \
 160                                        (n) <= ED_POS_LEVEL_SETTINGS_LAST)
 161 #define IS_POS_ELEMENT_TABS(n)        ((n) >= ED_POS_ELEMENT_TABS_FIRST && \
 162                                        (n) <= ED_POS_ELEMENT_TABS_LAST)
 163 #define IS_POS_ELEMENT_SETTINGS(n)    ((n) >= ED_POS_ELEMENT_SETTINGS_FIRST && \
 164                                        (n) <= ED_POS_ELEMENT_SETTINGS_LAST)
 165
 166 #define ED_LEVEL_TABS_LINE(n)           ((n) - ED_POS_LEVEL_TABS_FIRST)
 167 #define ED_LEVEL_SETTINGS_LINE(n)       ((n) - ED_POS_LEVEL_SETTINGS_FIRST)
 168 #define ED_ELEMENT_TABS_LINE(n)         ((n) - ED_POS_ELEMENT_TABS_FIRST)
 169 #define ED_ELEMENT_SETTINGS_LINE(n)     ((n) - ED_POS_ELEMENT_SETTINGS_FIRST)
 170
 171 #define ED_LEVEL_TABS_X(n)              (ED_LEVEL_TABS_XSTART + \
 172                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 173 #define ED_LEVEL_TABS_Y(n)              (ED_LEVEL_TABS_YSTART + \
 174                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 175
 176 #define ED_LEVEL_SETTINGS_X(n)          (ED_LEVEL_SETTINGS_XSTART +     \
 177                                          (n) * ED_SETTINGS_XOFFSET)
 178 #define ED_LEVEL_SETTINGS_Y(n)          (ED_LEVEL_SETTINGS_YSTART +     \
 179                                          (n) * ED_SETTINGS_YOFFSET)
 180
 181 #define ED_ELEMENT_TABS_X(n)            (ED_ELEMENT_TABS_XSTART +       \
 182                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 183 #define ED_ELEMENT_TABS_Y(n)            (ED_ELEMENT_TABS_YSTART +       \
 184                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 185
 186 #define ED_ELEMENT_SETTINGS_X(n)        (ED_ELEMENT_SETTINGS_XSTART +   \
 187                                          (n) * ED_SETTINGS_XOFFSET)
 188 #define ED_ELEMENT_SETTINGS_Y(n)        (ED_ELEMENT_SETTINGS_YSTART +   \
 189                                          (n) * ED_SETTINGS_YOFFSET)
 190
 191 #define ED_POS_TO_LEVEL_TABS_X(n)       \
 192   (ED_LEVEL_TABS_X(ED_LEVEL_TABS_LINE(n)))
 193 #define ED_POS_TO_LEVEL_TABS_Y(n)       \
 194   (ED_LEVEL_TABS_Y(ED_LEVEL_TABS_LINE(n)))
 195
 196 #define ED_POS_TO_LEVEL_SETTINGS_X(n)   \
 197   (ED_LEVEL_SETTINGS_X(ED_LEVEL_SETTINGS_LINE(n)))
 198 #define ED_POS_TO_LEVEL_SETTINGS_Y(n)   \
 199   (ED_LEVEL_SETTINGS_Y(ED_LEVEL_SETTINGS_LINE(n)))
 200
 201 #define ED_POS_TO_ELEMENT_TABS_X(n)     \
 202   (ED_ELEMENT_TABS_X(ED_ELEMENT_TABS_LINE(n)))
 203 #define ED_POS_TO_ELEMENT_TABS_Y(n)     \
 204   (ED_ELEMENT_TABS_Y(ED_ELEMENT_TABS_LINE(n)))
 205
 206 #define ED_POS_TO_ELEMENT_SETTINGS_X(n) \
 207   (ED_ELEMENT_SETTINGS_X(ED_ELEMENT_SETTINGS_LINE(n)))
 208 #define ED_POS_TO_ELEMENT_SETTINGS_Y(n) \
 209   (ED_ELEMENT_SETTINGS_Y(ED_ELEMENT_SETTINGS_LINE(n)))
 210
 211 #define ED_SETTINGS_X(n)                (IS_POS_LEVEL_TABS(n) ? \
 212                                          ED_POS_TO_LEVEL_TABS_X(n) : \
 213                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 214                                          ED_POS_TO_LEVEL_SETTINGS_X(n) : \
 215                                          IS_POS_ELEMENT_TABS(n) ?       \
 216                                          ED_POS_TO_ELEMENT_TABS_X(n) : \
 217                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 218                                          ED_POS_TO_ELEMENT_SETTINGS_X(n) : (n))
 219 #define ED_SETTINGS_Y(n)                (IS_POS_LEVEL_TABS(n) ? \
 220                                          ED_POS_TO_LEVEL_TABS_Y(n) : \
 221                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 222                                          ED_POS_TO_LEVEL_SETTINGS_Y(n) : \
 223                                          IS_POS_ELEMENT_TABS(n) ?       \
 224                                          ED_POS_TO_ELEMENT_TABS_Y(n) : \
 225                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 226                                          ED_POS_TO_ELEMENT_SETTINGS_Y(n) : (n))
 227
 228 #define ED_SETTINGS_XOFF(n)             (5 * ((n) % 4) *                \
 229                                          ED_DRAWINGAREA_TILE_SIZE)
 230 #define ED_SETTINGS_YOFF(n)             (5 * ((n) / 4) *                \
 231                                          ED_DRAWINGAREA_TILE_SIZE)
 232
 233 #define ED_AREA_XOFFSET_1(n)            ((n) != 0 ?                     \
 234                                          ED_DRAWINGAREA_BORDER_SIZE : 0)
 235 #define ED_AREA_YOFFSET_1(n)            ((n) != 0 ?                     \
 236                                          (ED_CHECKBUTTON_YSIZE -        \
 237                                           ED_DRAWINGAREA_TILE_SIZE) / 2 : 0)
 238
 239 #define ED_AREA_XOFFSET_2(n)      (0)
 240 #define ED_AREA_YOFFSET_2(n)      ((n) == 3 ?                   \
 241                                    ((n) - 1) * ED_DRAWINGAREA_TILE_SIZE / 2 : 0)
 242
 243 #define ED_AREA_SETTINGS_X(i)      (ED_SETTINGS_X((i).x) +              \
 244                                     ED_SETTINGS_XOFF((i).xoffset) +     \
 245                                     ED_AREA_XOFFSET_1((i).x) -          \
 246                                     ED_AREA_XOFFSET_2((i).area_xsize))
 247 #define ED_AREA_SETTINGS_Y(i)      (ED_SETTINGS_Y((i).y) +              \
 248                                     ED_SETTINGS_YOFF((i).yoffset) +     \
 249                                     ED_AREA_YOFFSET_1((i).y) -          \
 250                                     ED_AREA_YOFFSET_2((i).area_ysize))
 251
 252 // values for element content drawing areas
 253 #define ED_AREA_1X1_LSETTINGS_XPOS(n)   ED_LEVEL_SETTINGS_XPOS(n)
 254 #define ED_AREA_1X1_LSETTINGS_YPOS(n)   ED_LEVEL_SETTINGS_YPOS(n)
 255 #define ED_AREA_1X1_LSETTINGS_XOFF      (0)
 256 #define ED_AREA_1X1_LSETTINGS_YOFF      (0)
 257
 258 #define ED_AREA_1X1_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 259 #define ED_AREA_1X1_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 260 #define ED_AREA_1X1_SETTINGS_XOFF       (0)
 261 #define ED_AREA_1X1_SETTINGS_YOFF       (0)
 262
 263 #define ED_AREA_3X3_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 264 #define ED_AREA_3X3_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 265 #define ED_AREA_3X3_SETTINGS_XOFF       (0)
 266 #define ED_AREA_3X3_SETTINGS_YOFF       (0)
 267
 268 // element content
 269 #define ED_AREA_ELEMENT_CONTENT_XOFF(n) (n)
 270 #define ED_AREA_ELEMENT_CONTENT_YOFF(n) (n)
 271
 272 // yamyam content
 273 #define ED_XPOS_YAM                     0
 274 #define ED_YPOS_YAM                     5
 275 #define ED_AREA_YAMYAM_CONTENT_XPOS     ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_YAM)
 276 #define ED_AREA_YAMYAM_CONTENT_YPOS     ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_YAM)
 277 #define ED_AREA_YAMYAM_CONTENT_XOFF(n)  ED_AREA_ELEMENT_CONTENT_XOFF(n)
 278 #define ED_AREA_YAMYAM_CONTENT_YOFF(n)  ED_AREA_ELEMENT_CONTENT_YOFF(n)
 279 #define ED_AREA_YAMYAM_CONTENT_X(n)     (ED_ELEMENT_SETTINGS_X(ED_XPOS_YAM) + \
 280                                          ED_SETTINGS_XOFF(n))
 281 #define ED_AREA_YAMYAM_CONTENT_Y(n)     (ED_ELEMENT_SETTINGS_Y(ED_YPOS_YAM) + \
 282                                          ED_SETTINGS_YOFF(n) +          \
 283                                          ED_AREA_YOFFSET_1(ED_YPOS_YAM) - \
 284                                          ED_AREA_YOFFSET_2(3))
 285
 286 // magic ball content
 287 #define ED_XPOS_BALL                    0
 288 #define ED_YPOS_BALL                    6
 289 #define ED_AREA_MAGIC_BALL_CONTENT_XPOS ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_BALL)
 290 #define ED_AREA_MAGIC_BALL_CONTENT_YPOS ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_BALL)
 291 #define ED_AREA_MAGIC_BALL_CONTENT_XOFF(n) ED_AREA_ELEMENT_CONTENT_XOFF(n)
 292 #define ED_AREA_MAGIC_BALL_CONTENT_YOFF(n) ED_AREA_ELEMENT_CONTENT_YOFF(n)
 293 #define ED_AREA_MAGIC_BALL_CONTENT_X(n) (ED_ELEMENT_SETTINGS_X(ED_XPOS_BALL) + \
 294                                          ED_SETTINGS_XOFF(n))
 295 #define ED_AREA_MAGIC_BALL_CONTENT_Y(n) (ED_ELEMENT_SETTINGS_Y(ED_YPOS_BALL) + \
 296                                          ED_SETTINGS_YOFF(n) +          \
 297                                          ED_AREA_YOFFSET_1(ED_YPOS_BALL) - \
 298                                          ED_AREA_YOFFSET_2(3))
 299
 300 // values for scrolling gadgets for drawing area
 301 #define ED_SCROLLBUTTON_XSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].width)
 302 #define ED_SCROLLBUTTON_YSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].height)
 303
 304 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 305 #define ED_SCROLL_UP_YPOS               (0)
 306 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 307 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 308 #define ED_SCROLL_LEFT_XPOS             (0)
 309 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 310 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 311 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 312 #define ED_SCROLL_HORIZONTAL_XPOS       (ED_SCROLL_LEFT_XPOS +          \
 313                                          ED_SCROLLBUTTON_XSIZE)
 314 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 315 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 316 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 317 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 318 #define ED_SCROLL_VERTICAL_YPOS         (ED_SCROLL_UP_YPOS +            \
 319                                          ED_SCROLLBUTTON_YSIZE)
 320 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 321 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 322
 323 // values for scrolling gadgets for element list
 324 #define ED_SCROLLBUTTON2_XSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].width)
 325 #define ED_SCROLLBUTTON2_YSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].height)
 326
 327 #define ED_SCROLL2_UP_XPOS              (ED_ELEMENTLIST_XPOS +          \
 328                                          ED_ELEMENTLIST_BUTTONS_HORIZ * \
 329                                          ED_ELEMENTLIST_XSIZE)
 330 #define ED_SCROLL2_UP_YPOS              ED_ELEMENTLIST_YPOS
 331 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 332 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS +           \
 333                                          ED_ELEMENTLIST_BUTTONS_VERT *  \
 334                                          ED_ELEMENTLIST_YSIZE -         \
 335                                          ED_SCROLLBUTTON2_YSIZE)
 336 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 337 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS +           \
 338                                          ED_SCROLLBUTTON2_YSIZE)
 339 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 340 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT *  \
 341                                          ED_ELEMENTLIST_YSIZE -         \
 342                                          2 * ED_SCROLLBUTTON2_YSIZE)
 343
 344 // values for ClearEditorGadgetInfoText() and HandleEditorGadgetInfoText()
 345 #define INFOTEXT_FONT           FONT_TEXT_2
 346 #define INFOTEXT_XSIZE          SXSIZE
 347 #define INFOTEXT_YSIZE          getFontHeight(INFOTEXT_FONT)
 348 #define INFOTEXT_YSIZE_FULL     (INFOTEXT_YSIZE + ED_GADGET_SMALL_DISTANCE)
 349 #define INFOTEXT_X              (editor.settings.tooltip.x)
 350 #define INFOTEXT_Y              (editor.settings.tooltip.y)
 351 #define INFOTEXT_XY_REDEFINED   (INFOTEXT_X != -1 || INFOTEXT_Y != -1)
 352 #define INFOTEXT_XPOS           SX + (INFOTEXT_XY_REDEFINED ? INFOTEXT_X : 0)
 353 #define INFOTEXT_YPOS           SY + (INFOTEXT_XY_REDEFINED ? INFOTEXT_Y : \
 354                                       SYSIZE - INFOTEXT_YSIZE)
 355
 356
 357 // ----------------------------------------------------------------------------
 358 // editor gadget definitions
 359 // ----------------------------------------------------------------------------
 360
 361 enum
 362 {
 363   GADGET_ID_NONE = -1,
 364
 365   // drawing toolbox buttons
 366
 367   GADGET_ID_SINGLE_ITEMS,
 368   GADGET_ID_CONNECTED_ITEMS,
 369   GADGET_ID_LINE,
 370   GADGET_ID_ARC,
 371   GADGET_ID_RECTANGLE,
 372   GADGET_ID_FILLED_BOX,
 373   GADGET_ID_WRAP_UP,
 374   GADGET_ID_TEXT,
 375   GADGET_ID_FLOOD_FILL,
 376   GADGET_ID_WRAP_LEFT,
 377   GADGET_ID_ZOOM,
 378   GADGET_ID_WRAP_RIGHT,
 379   GADGET_ID_RANDOM_PLACEMENT,
 380   GADGET_ID_GRAB_BRUSH,
 381   GADGET_ID_WRAP_DOWN,
 382   GADGET_ID_PICK_ELEMENT,
 383
 384   GADGET_ID_UNDO,
 385   GADGET_ID_CONF,
 386   GADGET_ID_SAVE,
 387   GADGET_ID_CLEAR,
 388   GADGET_ID_TEST,
 389   GADGET_ID_EXIT,
 390
 391   GADGET_ID_CUSTOM_COPY_FROM,
 392   GADGET_ID_CUSTOM_COPY_TO,
 393   GADGET_ID_CUSTOM_EXCHANGE,
 394   GADGET_ID_CUSTOM_COPY,
 395   GADGET_ID_CUSTOM_PASTE,
 396
 397   GADGET_ID_PROPERTIES,
 398   GADGET_ID_ELEMENT_LEFT,
 399   GADGET_ID_ELEMENT_MIDDLE,
 400   GADGET_ID_ELEMENT_RIGHT,
 401   GADGET_ID_PALETTE,
 402
 403   // counter gadget identifiers
 404
 405   GADGET_ID_SELECT_LEVEL_DOWN,
 406   GADGET_ID_SELECT_LEVEL_TEXT,
 407   GADGET_ID_SELECT_LEVEL_UP,
 408   GADGET_ID_LEVEL_XSIZE_DOWN,
 409   GADGET_ID_LEVEL_XSIZE_TEXT,
 410   GADGET_ID_LEVEL_XSIZE_UP,
 411   GADGET_ID_LEVEL_YSIZE_DOWN,
 412   GADGET_ID_LEVEL_YSIZE_TEXT,
 413   GADGET_ID_LEVEL_YSIZE_UP,
 414   GADGET_ID_LEVEL_RANDOM_DOWN,
 415   GADGET_ID_LEVEL_RANDOM_TEXT,
 416   GADGET_ID_LEVEL_RANDOM_UP,
 417   GADGET_ID_LEVEL_GEMSLIMIT_DOWN,
 418   GADGET_ID_LEVEL_GEMSLIMIT_TEXT,
 419   GADGET_ID_LEVEL_GEMSLIMIT_UP,
 420   GADGET_ID_LEVEL_TIMELIMIT_DOWN,
 421   GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 422   GADGET_ID_LEVEL_TIMELIMIT_UP,
 423   GADGET_ID_LEVEL_TIMESCORE_DOWN,
 424   GADGET_ID_LEVEL_TIMESCORE_TEXT,
 425   GADGET_ID_LEVEL_TIMESCORE_UP,
 426   GADGET_ID_LEVEL_RANDOM_SEED_DOWN,
 427   GADGET_ID_LEVEL_RANDOM_SEED_TEXT,
 428   GADGET_ID_LEVEL_RANDOM_SEED_UP,
 429   GADGET_ID_LEVELSET_NUM_LEVELS_DOWN,
 430   GADGET_ID_LEVELSET_NUM_LEVELS_TEXT,
 431   GADGET_ID_LEVELSET_NUM_LEVELS_UP,
 432   GADGET_ID_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_LEVELCONFIG_LEVEL,
 607   GADGET_ID_LEVELCONFIG_LEVELSET,
 608   GADGET_ID_LEVELCONFIG_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_ROTATE_MM_BALL_CONTENT,
 691   GADGET_ID_EXPLODE_MM_BALL,
 692   GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 693   GADGET_ID_CUSTOM_CAN_EXPLODE,
 694   GADGET_ID_CUSTOM_EXPLODE_FIRE,
 695   GADGET_ID_CUSTOM_EXPLODE_SMASH,
 696   GADGET_ID_CUSTOM_EXPLODE_IMPACT,
 697   GADGET_ID_CUSTOM_WALK_TO_OBJECT,
 698   GADGET_ID_CUSTOM_DEADLY,
 699   GADGET_ID_CUSTOM_CAN_MOVE,
 700   GADGET_ID_CUSTOM_CAN_FALL,
 701   GADGET_ID_CUSTOM_CAN_SMASH,
 702   GADGET_ID_CUSTOM_SLIPPERY,
 703   GADGET_ID_CUSTOM_ACCESSIBLE,
 704   GADGET_ID_CUSTOM_GRAV_REACHABLE,
 705   GADGET_ID_CUSTOM_USE_LAST_VALUE,
 706   GADGET_ID_CUSTOM_USE_GRAPHIC,
 707   GADGET_ID_CUSTOM_USE_TEMPLATE_1,
 708   GADGET_ID_CUSTOM_USE_TEMPLATE_2,
 709   GADGET_ID_CUSTOM_USE_TEMPLATE_3,
 710   GADGET_ID_CUSTOM_CAN_CHANGE,
 711   GADGET_ID_CHANGE_USE_CONTENT,
 712   GADGET_ID_CHANGE_USE_EXPLOSION,
 713   GADGET_ID_CHANGE_ONLY_COMPLETE,
 714   GADGET_ID_CHANGE_USE_RANDOM,
 715   GADGET_ID_CHANGE_HAS_ACTION,
 716   GADGET_ID_CHANGE_DELAY,
 717   GADGET_ID_CHANGE_BY_DIRECT_ACT,
 718   GADGET_ID_CHANGE_BY_OTHER_ACT,
 719
 720   NUM_STATIC_GADGET_IDS
 721 };
 722
 723 // gadgets for buttons in element list (dynamic)
 724 #define GADGET_ID_ELEMENTLIST_FIRST     (NUM_STATIC_GADGET_IDS)
 725 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 726                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 727
 728 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 729
 730 // radio button numbers
 731 enum
 732 {
 733   RADIO_NR_NONE,
 734   RADIO_NR_DRAWING_TOOLBOX,
 735   RADIO_NR_RANDOM_ELEMENTS
 736 };
 737
 738 // values for counter gadgets
 739 enum
 740 {
 741   ED_COUNTER_ID_SELECT_LEVEL,
 742   ED_COUNTER_ID_LEVEL_XSIZE,
 743   ED_COUNTER_ID_LEVEL_YSIZE,
 744   ED_COUNTER_ID_LEVEL_GEMSLIMIT,
 745   ED_COUNTER_ID_LEVEL_TIMELIMIT,
 746   ED_COUNTER_ID_LEVEL_TIMESCORE,
 747   ED_COUNTER_ID_LEVEL_RANDOM_SEED,
 748   ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
 749   ED_COUNTER_ID_LEVEL_RANDOM,
 750   ED_COUNTER_ID_ELEMENT_VALUE1,
 751   ED_COUNTER_ID_ELEMENT_VALUE2,
 752   ED_COUNTER_ID_ELEMENT_VALUE3,
 753   ED_COUNTER_ID_ELEMENT_VALUE4,
 754   ED_COUNTER_ID_YAMYAM_CONTENT,
 755   ED_COUNTER_ID_BALL_CONTENT,
 756   ED_COUNTER_ID_ANDROID_CONTENT,
 757   ED_COUNTER_ID_ENVELOPE_XSIZE,
 758   ED_COUNTER_ID_ENVELOPE_YSIZE,
 759   ED_COUNTER_ID_INVENTORY_SIZE,
 760   ED_COUNTER_ID_MM_BALL_CONTENT,
 761   ED_COUNTER_ID_CUSTOM_SCORE,
 762   ED_COUNTER_ID_CUSTOM_GEMCOUNT,
 763   ED_COUNTER_ID_CUSTOM_VALUE_FIX,
 764   ED_COUNTER_ID_CUSTOM_VALUE_RND,
 765   ED_COUNTER_ID_PUSH_DELAY_FIX,
 766   ED_COUNTER_ID_PUSH_DELAY_RND,
 767   ED_COUNTER_ID_DROP_DELAY_FIX,
 768   ED_COUNTER_ID_DROP_DELAY_RND,
 769   ED_COUNTER_ID_MOVE_DELAY_FIX,
 770   ED_COUNTER_ID_MOVE_DELAY_RND,
 771   ED_COUNTER_ID_STEP_DELAY_FIX,
 772   ED_COUNTER_ID_STEP_DELAY_RND,
 773   ED_COUNTER_ID_EXPLOSION_DELAY,
 774   ED_COUNTER_ID_IGNITION_DELAY,
 775   ED_COUNTER_ID_GROUP_CONTENT,
 776   ED_COUNTER_ID_CHANGE_DELAY_FIX,
 777   ED_COUNTER_ID_CHANGE_DELAY_RND,
 778   ED_COUNTER_ID_CHANGE_CONT_RND,
 779
 780   ED_NUM_COUNTERBUTTONS
 781 };
 782
 783 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 784 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 785 #define ED_COUNTER_ID_LEVELSET_FIRST    ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 786 #define ED_COUNTER_ID_LEVELSET_LAST     ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 787 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 788 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 789
 790 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 791 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 792 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 793 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 794 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 795 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 796
 797 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 798 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 799
 800 // values for scrollbutton gadgets
 801 enum
 802 {
 803   ED_SCROLLBUTTON_ID_AREA_UP,
 804   ED_SCROLLBUTTON_ID_AREA_DOWN,
 805   ED_SCROLLBUTTON_ID_AREA_LEFT,
 806   ED_SCROLLBUTTON_ID_AREA_RIGHT,
 807   ED_SCROLLBUTTON_ID_LIST_UP,
 808   ED_SCROLLBUTTON_ID_LIST_DOWN,
 809
 810   ED_NUM_SCROLLBUTTONS
 811 };
 812
 813 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 814 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 815
 816 // values for scrollbar gadgets
 817 enum
 818 {
 819   ED_SCROLLBAR_ID_AREA_HORIZONTAL,
 820   ED_SCROLLBAR_ID_AREA_VERTICAL,
 821   ED_SCROLLBAR_ID_LIST_VERTICAL,
 822
 823   ED_NUM_SCROLLBARS
 824 };
 825
 826 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 827 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 828
 829 // values for text input gadgets
 830 enum
 831 {
 832   ED_TEXTINPUT_ID_LEVEL_NAME,
 833   ED_TEXTINPUT_ID_LEVEL_AUTHOR,
 834   ED_TEXTINPUT_ID_LEVELSET_NAME,
 835   ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
 836   ED_TEXTINPUT_ID_ELEMENT_NAME,
 837
 838   ED_NUM_TEXTINPUT
 839 };
 840
 841 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 842 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 843
 844 #define ED_TEXTINPUT_ID_LEVELSET_FIRST  ED_TEXTINPUT_ID_LEVELSET_NAME
 845 #define ED_TEXTINPUT_ID_LEVELSET_LAST   ED_TEXTINPUT_ID_LEVELSET_AUTHOR
 846
 847 // values for text area gadgets
 848 enum
 849 {
 850   ED_TEXTAREA_ID_ENVELOPE_INFO,
 851
 852   ED_NUM_TEXTAREAS
 853 };
 854
 855 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 856 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 857
 858 // values for selectbox gadgets
 859 enum
 860 {
 861   ED_SELECTBOX_ID_TIME_OR_STEPS,
 862   ED_SELECTBOX_ID_TIME_SCORE_BASE,
 863   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
 864   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
 865   ED_SELECTBOX_ID_WIND_DIRECTION,
 866   ED_SELECTBOX_ID_PLAYER_SPEED,
 867   ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
 868   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
 869   ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
 870   ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
 871   ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
 872   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
 873   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
 874   ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
 875   ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
 876   ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
 877   ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
 878   ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
 879   ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
 880   ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
 881   ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
 882   ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
 883   ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
 884   ED_SELECTBOX_ID_CHANGE_SIDE,
 885   ED_SELECTBOX_ID_CHANGE_PLAYER,
 886   ED_SELECTBOX_ID_CHANGE_PAGE,
 887   ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
 888   ED_SELECTBOX_ID_ACTION_TYPE,
 889   ED_SELECTBOX_ID_ACTION_MODE,
 890   ED_SELECTBOX_ID_ACTION_ARG,
 891   ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
 892   ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
 893
 894   ED_NUM_SELECTBOX
 895 };
 896
 897 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 898 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 899
 900 #define ED_SELECTBOX_ID_LEVELSET_FIRST  ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 901 #define ED_SELECTBOX_ID_LEVELSET_LAST   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 902
 903 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 904 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 905 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 906 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 907 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 908 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 909
 910 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 911 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 912
 913 // values for textbutton gadgets
 914 enum
 915 {
 916   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL,
 917   ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET,
 918   ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR,
 919   ED_TEXTBUTTON_ID_PROPERTIES_INFO,
 920   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
 921   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
 922   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
 923   ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
 924   ED_TEXTBUTTON_ID_SAVE_LEVELSET,
 925   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
 926   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
 927   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
 928   ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
 929
 930   ED_NUM_TEXTBUTTONS
 931 };
 932
 933 #define ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
 934 #define ED_TAB_BUTTON_ID_LEVELCONFIG_LAST  ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR
 935
 936 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
 937 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 938
 939 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
 940 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
 941
 942 // values for graphicbutton gadgets
 943 enum
 944 {
 945   ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
 946   ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
 947   ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
 948   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
 949
 950   ED_NUM_GRAPHICBUTTONS
 951 };
 952
 953 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
 954 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
 955
 956 // values for checkbutton gadgets
 957 enum
 958 {
 959   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
 960   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
 961   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
 962   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
 963   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
 964   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
 965   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
 966   ED_CHECKBUTTON_ID_STICK_ELEMENT,
 967   ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
 968   ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
 969   ED_CHECKBUTTON_ID_USE_SPRING_BUG,
 970   ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
 971   ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
 972   ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
 973   ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
 974   ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
 975   ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
 976   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
 977   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
 978   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
 979   ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
 980   ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
 981   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
 982   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
 983   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
 984   ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
 985   ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
 986   ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
 987   ED_CHECKBUTTON_ID_LAZY_RELOCATION,
 988   ED_CHECKBUTTON_ID_USE_START_ELEMENT,
 989   ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
 990   ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
 991   ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
 992   ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
 993   ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
 994   ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
 995   ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
 996   ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
 997   ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
 998   ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
 999   ED_CHECKBUTTON_ID_MM_LASER_RED,
1000   ED_CHECKBUTTON_ID_MM_LASER_GREEN,
1001   ED_CHECKBUTTON_ID_MM_LASER_BLUE,
1002   ED_CHECKBUTTON_ID_DF_LASER_RED,
1003   ED_CHECKBUTTON_ID_DF_LASER_GREEN,
1004   ED_CHECKBUTTON_ID_DF_LASER_BLUE,
1005   ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
1006   ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
1007   ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
1008   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
1009   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
1010   ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
1011   ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
1012   ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
1013   ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
1014   ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
1015   ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
1016   ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
1017   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
1018   ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
1019   ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
1020   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
1021   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
1022   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
1023   ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
1024   ED_CHECKBUTTON_ID_CHANGE_DELAY,
1025   ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
1026   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
1027   ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
1028   ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
1029   ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
1030   ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
1031   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
1032
1033   ED_NUM_CHECKBUTTONS
1034 };
1035
1036 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
1037 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
1038
1039 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
1040 #define ED_CHECKBUTTON_ID_LEVELSET_LAST  ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
1041
1042 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
1043 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
1044
1045 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
1046 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
1047 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
1048 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
1049 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
1050 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
1051
1052 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
1053 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
1054
1055 // values for radiobutton gadgets
1056 enum
1057 {
1058   ED_RADIOBUTTON_ID_PERCENTAGE,
1059   ED_RADIOBUTTON_ID_QUANTITY,
1060
1061   ED_NUM_RADIOBUTTONS
1062 };
1063
1064 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
1065 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
1066
1067 // values for drawing area gadgets
1068 enum
1069 {
1070   ED_DRAWING_ID_DRAWING_LEVEL,
1071   ED_DRAWING_ID_YAMYAM_CONTENT_0,
1072   ED_DRAWING_ID_YAMYAM_CONTENT_1,
1073   ED_DRAWING_ID_YAMYAM_CONTENT_2,
1074   ED_DRAWING_ID_YAMYAM_CONTENT_3,
1075   ED_DRAWING_ID_YAMYAM_CONTENT_4,
1076   ED_DRAWING_ID_YAMYAM_CONTENT_5,
1077   ED_DRAWING_ID_YAMYAM_CONTENT_6,
1078   ED_DRAWING_ID_YAMYAM_CONTENT_7,
1079   ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
1080   ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
1081   ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
1082   ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
1083   ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
1084   ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
1085   ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
1086   ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
1087   ED_DRAWING_ID_ANDROID_CONTENT,
1088   ED_DRAWING_ID_AMOEBA_CONTENT,
1089   ED_DRAWING_ID_START_ELEMENT,
1090   ED_DRAWING_ID_ARTWORK_ELEMENT,
1091   ED_DRAWING_ID_EXPLOSION_ELEMENT,
1092   ED_DRAWING_ID_INVENTORY_CONTENT,
1093   ED_DRAWING_ID_MM_BALL_CONTENT,
1094   ED_DRAWING_ID_CUSTOM_GRAPHIC,
1095   ED_DRAWING_ID_CUSTOM_CONTENT,
1096   ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
1097   ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
1098   ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
1099   ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
1100   ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
1101   ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
1102   ED_DRAWING_ID_GROUP_CONTENT,
1103   ED_DRAWING_ID_RANDOM_BACKGROUND,
1104
1105   ED_NUM_DRAWING_AREAS
1106 };
1107
1108 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
1109 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
1110
1111
1112 // ----------------------------------------------------------------------------
1113 // some internally used definitions
1114 // ----------------------------------------------------------------------------
1115
1116 // values for CopyLevelToUndoBuffer()
1117 #define UNDO_IMMEDIATE                  0
1118 #define UNDO_ACCUMULATE                 1
1119
1120 // values for scrollbars
1121 #define ED_SCROLL_NO                    0
1122 #define ED_SCROLL_LEFT                  1
1123 #define ED_SCROLL_RIGHT                 2
1124 #define ED_SCROLL_UP                    4
1125 #define ED_SCROLL_DOWN                  8
1126
1127 // screens in the level editor
1128 #define ED_MODE_DRAWING                 0
1129 #define ED_MODE_LEVELCONFIG             1
1130 #define ED_MODE_PROPERTIES              2
1131 #define ED_MODE_PALETTE                 3
1132
1133 // sub-screens in the global settings section
1134 #define ED_MODE_LEVELCONFIG_LEVEL       ED_TEXTBUTTON_ID_LEVELCONFIG_LEVEL
1135 #define ED_MODE_LEVELCONFIG_LEVELSET    ED_TEXTBUTTON_ID_LEVELCONFIG_LEVELSET
1136 #define ED_MODE_LEVELCONFIG_EDITOR      ED_TEXTBUTTON_ID_LEVELCONFIG_EDITOR
1137
1138 // sub-screens in the element properties section
1139 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1140 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1141 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1142 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1143 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1144
1145 // how many steps can be cancelled
1146 #define NUM_UNDO_STEPS                  (64 + 1)
1147
1148 // values for elements with score for certain actions
1149 #define MIN_SCORE                       0
1150 #define MAX_SCORE                       999
1151
1152 // values for elements with count for collecting
1153 #define MIN_COLLECT_COUNT               0
1154 #define MAX_COLLECT_COUNT               999
1155
1156 // values for random placement
1157 #define RANDOM_USE_PERCENTAGE           0
1158 #define RANDOM_USE_QUANTITY             1
1159
1160 // values for level set save mode
1161 #define LEVELSET_SAVE_MODE_UPDATE       0
1162 #define LEVELSET_SAVE_MODE_CREATE       1
1163
1164 // default value for element tile size in drawing area
1165 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1166 #define DEFAULT_EDITOR_TILESIZE_MM      TILESIZE
1167
1168
1169 // ----------------------------------------------------------------------------
1170 // some internally used data structure definitions
1171 // ----------------------------------------------------------------------------
1172
1173 static struct
1174 {
1175   int graphic;
1176   int gadget_id;
1177   struct XYTileSize *pos;
1178   int gadget_type;
1179   char *infotext;
1180   char shortcut;
1181 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1182 {
1183   // note: some additional characters are already reserved for "cheat mode"
1184   // shortcuts (":XYZ" style) -- for details, see "events.c"
1185
1186   // ---------- toolbox control buttons ---------------------------------------
1187
1188   {
1189     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1190     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1191     "draw single items",                        's'
1192   },
1193   {
1194     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1195     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1196     "draw connected items",                     'd'
1197   },
1198   {
1199     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1200     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1201     "draw lines",                               'l'
1202   },
1203   {
1204     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1205     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1206     "draw arcs",                                'a'
1207   },
1208   {
1209     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1210     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1211     "draw outline rectangles",                  'r'
1212   },
1213   {
1214     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1215     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1216     "draw filled rectangles",                   'R'
1217   },
1218   {
1219     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1220     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1221     "wrap (rotate) level up",                   0
1222   },
1223   {
1224     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1225     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1226     "enter text elements",                      't'
1227   },
1228   {
1229     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1230     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1231     "flood fill",                               'f'
1232   },
1233   {
1234     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1235     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1236     "wrap (rotate) level left",                 0
1237   },
1238   {
1239     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1240     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1241     "zoom level tile size",                     '+'
1242   },
1243   {
1244     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1245     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1246     "wrap (rotate) level right",                0
1247   },
1248   {
1249     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1250     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1251     "random element placement",                 0
1252   },
1253   {
1254     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1255     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1256     "grab brush",                               'b'
1257   },
1258   {
1259     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1260     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1261     "wrap (rotate) level down",                 0
1262   },
1263   {
1264     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1265     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1266     "pick drawing element",                     ','
1267   },
1268
1269   // ---------- level control buttons -----------------------------------------
1270
1271   {
1272     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1273     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1274     "undo/redo last operation",                 'u'
1275   },
1276   {
1277     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_CONF,
1278     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1279     "level and editor settings",                'I'
1280   },
1281   {
1282     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1283     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1284     "save level",                               'S'
1285   },
1286   {
1287     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1288     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1289     "clear level",                              'C'
1290   },
1291   {
1292     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1293     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1294     "test level",                               'T'
1295   },
1296   {
1297     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1298     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1299     "exit level editor",                        'E'
1300   },
1301
1302   // ---------- CE and GE control buttons -------------------------------------
1303
1304   {
1305     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1306     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1307     "copy settings from other element",         0
1308   },
1309   {
1310     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1311     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1312     "copy settings to other element",           0
1313   },
1314   {
1315     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1316     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1317     "exchange element with other element",      0
1318   },
1319   {
1320     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1321     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1322     "copy settings from this element",          0
1323   },
1324   {
1325     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1326     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1327     "paste settings to this element",           0
1328   },
1329
1330   // ---------- palette control buttons ---------------------------------------
1331
1332   {
1333     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1334     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1335     "properties of drawing element",            'p'
1336   },
1337   {
1338     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1339     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1340     "properties of drawing element 1",          '1'
1341   },
1342   {
1343     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1344     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1345     "properties of drawing element 2",          '2'
1346   },
1347   {
1348     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1349     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1350     "properties of drawing element 3",          '3'
1351   },
1352   {
1353     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1354     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1355     "show list of elements",                    'e'
1356   }
1357 };
1358
1359 static int random_placement_value = 10;
1360 static int random_placement_method = RANDOM_USE_QUANTITY;
1361 static int random_placement_background_element = EL_SAND;
1362 static boolean random_placement_background_restricted = FALSE;
1363 static boolean stick_element_properties_window = FALSE;
1364 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1365 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1366 static struct ElementChangeInfo custom_element_change;
1367 static struct ElementGroupInfo group_element_info;
1368 static struct ElementInfo custom_element;
1369
1370 static char levelset_name[MAX_LEVEL_NAME_LEN + 1];
1371 static char levelset_author[MAX_LEVEL_AUTHOR_LEN + 1];
1372 static int levelset_num_levels = 100;
1373 static boolean levelset_use_levelset_artwork = FALSE;
1374 static boolean levelset_copy_level_template = FALSE;
1375 static int levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
1376
1377 static struct
1378 {
1379   int x, y;
1380   int min_value, max_value;
1381   int gadget_id_down, gadget_id_up;
1382   int gadget_id_text;
1383   int gadget_id_align;
1384   int *value;
1385   char *text_above, *text_left, *text_right;
1386 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1387 {
1388   // ---------- current level number ------------------------------------------
1389
1390   {
1391     -1, -1,     // these values are not constant, but can change at runtime
1392     1,                                  100,
1393     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1394     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1395     &level_nr,
1396     NULL,                               NULL, NULL
1397   },
1398
1399   // ---------- level and editor settings -------------------------------------
1400
1401   {
1402     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1403     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1404     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1405     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1406     &level.fieldx,
1407     "playfield size:",                  NULL, "width",
1408   },
1409   {
1410     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1411     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1412     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1413     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1414     &level.fieldy,
1415     NULL,                               " ", "height",
1416   },
1417   {
1418     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1419     0,                                  999,
1420     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1421     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1422     &level.gems_needed,
1423     NULL,                               "number of gems to collect:", NULL
1424   },
1425   {
1426     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
1427     0,                                  9999,
1428     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1429     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1430     &level.time,
1431     "time or step limit to solve level:", NULL, NULL
1432   },
1433   {
1434     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
1435     0,                                  999,
1436     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1437     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1438     &level.score[SC_TIME_BONUS],
1439     "score for time or steps left:",    NULL, NULL
1440   },
1441   {
1442     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(13),
1443     0,                                  9999,
1444     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1445     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1446     &level.random_seed,
1447     NULL,                               "random seed:", "(0 => random)"
1448   },
1449   {
1450     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1451     1,                                  MAX_LEVELS,
1452     GADGET_ID_LEVELSET_NUM_LEVELS_DOWN, GADGET_ID_LEVELSET_NUM_LEVELS_UP,
1453     GADGET_ID_LEVELSET_NUM_LEVELS_TEXT, GADGET_ID_NONE,
1454     &levelset_num_levels,
1455     "number of levels:",                NULL, NULL,
1456   },
1457   {
1458     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1459     1,                                  100,
1460     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1461     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1462     &random_placement_value,
1463     "random element placement:",        NULL, "in"
1464   },
1465
1466   // ---------- element settings: configure (various elements) ----------------
1467
1468   {
1469     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1470     MIN_SCORE,                          MAX_SCORE,
1471     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1472     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1473     NULL,                               // will be set when used
1474     NULL,                               NULL, NULL
1475   },
1476   {
1477     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1478     MIN_SCORE,                          MAX_SCORE,
1479     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1480     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1481     NULL,                               // will be set when used
1482     NULL,                               NULL, NULL
1483   },
1484   {
1485     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1486     MIN_SCORE,                          MAX_SCORE,
1487     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1488     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1489     NULL,                               // will be set when used
1490     NULL,                               NULL, NULL
1491   },
1492   {
1493     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1494     MIN_SCORE,                          MAX_SCORE,
1495     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1496     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1497     NULL,                               // will be set when used
1498     NULL,                               NULL, NULL
1499   },
1500   {
1501     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1502     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1503     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1504     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1505     &level.num_yamyam_contents,
1506     NULL,                               NULL, "number of content areas"
1507   },
1508   {
1509     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1510     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1511     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1512     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1513     &level.num_ball_contents,
1514     NULL,                               NULL, "number of content areas"
1515   },
1516   {
1517     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1518     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1519     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1520     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1521     &level.num_android_clone_elements,
1522     NULL,                               NULL, "number of clonable elements"
1523   },
1524   {
1525     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1526     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1527     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1528     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1529     NULL,                               // will be set when used
1530     NULL,                               NULL, "width",
1531   },
1532   {
1533     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1534     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1535     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1536     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1537     NULL,                               // will be set when used
1538     NULL,                               " ", "height",
1539   },
1540   {
1541     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1542     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1543     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1544     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1545     &level.initial_inventory_size[0],
1546     NULL,                               NULL, "number of inventory elements"
1547   },
1548   {
1549     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1550     MIN_ELEMENTS_IN_GROUP,              MAX_MM_BALL_CONTENTS,
1551     GADGET_ID_MM_BALL_CONTENT_DOWN,     GADGET_ID_MM_BALL_CONTENT_UP,
1552     GADGET_ID_MM_BALL_CONTENT_TEXT,     GADGET_ID_NONE,
1553     &level.num_mm_ball_contents,
1554     NULL,                               NULL, "number of content elements"
1555   },
1556
1557   // ---------- element settings: configure 1 (custom elements) ---------------
1558
1559   {
1560     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1561     MIN_SCORE,                          MAX_SCORE,
1562     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1563     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1564     &custom_element.collect_score_initial,
1565     NULL,                               "CE score", " "
1566   },
1567   {
1568     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1569     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1570     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1571     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1572     &custom_element.collect_count_initial,
1573     NULL,                               "CE count", NULL
1574   },
1575   {
1576     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1577     0,                                  9999,
1578     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1579     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1580     &custom_element.ce_value_fixed_initial,
1581     NULL,                               "CE value", NULL
1582   },
1583   {
1584     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1585     0,                                  9999,
1586     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1587     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1588     &custom_element.ce_value_random_initial,
1589     NULL,                               "+random", NULL
1590   },
1591   {
1592     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1593     0,                                  999,
1594     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1595     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1596     &custom_element.push_delay_fixed,
1597     NULL,                               "push delay", NULL
1598   },
1599   {
1600     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1601     0,                                  999,
1602     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1603     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1604     &custom_element.push_delay_random,
1605     NULL,                               "+random", NULL
1606   },
1607   {
1608     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1609     0,                                  999,
1610     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1611     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1612     &custom_element.drop_delay_fixed,
1613     NULL,                               "drop delay", NULL
1614   },
1615   {
1616     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1617     0,                                  999,
1618     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1619     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1620     &custom_element.drop_delay_random,
1621     NULL,                               "+random", NULL
1622   },
1623
1624   // ---------- element settings: configure 2 (custom elements) ---------------
1625
1626   {
1627     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1628     0,                                  999,
1629     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1630     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1631     &custom_element.move_delay_fixed,
1632     NULL,                               "move delay", NULL
1633   },
1634   {
1635     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1636     0,                                  999,
1637     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1638     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1639     &custom_element.move_delay_random,
1640     NULL,                               "+random", NULL
1641   },
1642   {
1643     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1644     0,                                  999,
1645     GADGET_ID_STEP_DELAY_FIX_DOWN,      GADGET_ID_STEP_DELAY_FIX_UP,
1646     GADGET_ID_STEP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1647     &custom_element.step_delay_fixed,
1648     NULL,                               "step delay", NULL
1649   },
1650   {
1651     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1652     0,                                  999,
1653     GADGET_ID_STEP_DELAY_RND_DOWN,      GADGET_ID_STEP_DELAY_RND_UP,
1654     GADGET_ID_STEP_DELAY_RND_TEXT,      GADGET_ID_STEP_DELAY_FIX_UP,
1655     &custom_element.step_delay_random,
1656     NULL,                               "+random", NULL
1657   },
1658   {
1659     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1660     0,                                  999,
1661     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1662     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1663     &custom_element.explosion_delay,
1664     NULL,                               "explosion delay", NULL
1665   },
1666   {
1667     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
1668     0,                                  999,
1669     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1670     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1671     &custom_element.ignition_delay,
1672     NULL,                               "ignition delay", "(by fire)"
1673   },
1674
1675   // ---------- element settings: configure (group elements) ------------------
1676
1677   {
1678     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1679     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1680     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1681     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1682     &group_element_info.num_elements,
1683     NULL,                               NULL, "number of elements in group"
1684   },
1685
1686   // ---------- element settings: advanced (custom elements) ------------------
1687
1688   {
1689     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1690     0,                                  999,
1691     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1692     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1693     &custom_element_change.delay_fixed,
1694     NULL,                               "CE delay", NULL,
1695   },
1696   {
1697     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1698     0,                                  999,
1699     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1700     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1701     &custom_element_change.delay_random,
1702     NULL,                               "+random", NULL
1703   },
1704   {
1705     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1706     0,                                  100,
1707     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1708     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1709     &custom_element_change.random_percentage,
1710     NULL,                               "use random replace:", "%"
1711   },
1712 };
1713
1714 static struct
1715 {
1716   int x, y;
1717   int gadget_id;
1718   int size;
1719   char *value;
1720   char *text_above, *infotext;
1721 } textinput_info[ED_NUM_TEXTINPUT] =
1722 {
1723   {
1724     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1725     GADGET_ID_LEVEL_NAME,
1726     MAX_LEVEL_NAME_LEN,
1727     level.name,
1728     "Title:", "Title for this level"
1729   },
1730   {
1731     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1732     GADGET_ID_LEVEL_AUTHOR,
1733     MAX_LEVEL_AUTHOR_LEN,
1734     level.author,
1735     "Author:", "Author for this level"
1736   },
1737   {
1738     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1739     GADGET_ID_LEVELSET_NAME,
1740     MAX_LEVEL_NAME_LEN,
1741     levelset_name,
1742     "Title:", "Title for this or new level set"
1743   },
1744   {
1745     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1746     GADGET_ID_LEVELSET_AUTHOR,
1747     MAX_LEVEL_AUTHOR_LEN,
1748     levelset_author,
1749     "Author:", "Author for this or new level set"
1750   },
1751   {
1752     -1, -1,     // these values are not constant, but can change at runtime
1753     GADGET_ID_ELEMENT_NAME,
1754     MAX_ELEMENT_NAME_LEN - 2,           // currently 2 chars less editable
1755     custom_element.description,
1756     NULL, "Element name"
1757   }
1758 };
1759
1760 static struct
1761 {
1762   int x, y;
1763   int gadget_id;
1764   int xsize, ysize;
1765   char *value;
1766   char *text_above, *text_above_cropped, *infotext;
1767 } textarea_info[ED_NUM_TEXTAREAS] =
1768 {
1769   {
1770     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1771     GADGET_ID_ENVELOPE_INFO,
1772     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1773     NULL,
1774     "Envelope Content:", "Envelope Content (cropped):", "Envelope Content"
1775   }
1776 };
1777
1778 static struct ValueTextInfo options_time_or_steps[] =
1779 {
1780   { 0,                          "seconds"                       },
1781   { 1,                          "steps"                         },
1782
1783   { -1,                         NULL                            }
1784 };
1785
1786 static struct ValueTextInfo options_time_score_base[] =
1787 {
1788   { 1,                          "per second/step"               },
1789   { 10,                         "per 10 seconds/steps"          },
1790
1791   { -1,                         NULL                            }
1792 };
1793
1794 static struct ValueTextInfo options_game_engine_type[] =
1795 {
1796   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
1797   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
1798   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
1799   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
1800
1801   { -1,                         NULL                            }
1802 };
1803
1804 static struct ValueTextInfo options_levelset_save_mode[] =
1805 {
1806   { LEVELSET_SAVE_MODE_UPDATE,  "Update this level set"         },
1807   { LEVELSET_SAVE_MODE_CREATE,  "Create new level set"          },
1808
1809   { -1,                         NULL                            }
1810 };
1811
1812 static struct ValueTextInfo options_wind_direction[] =
1813 {
1814   { MV_START_NONE,              "none"                          },
1815   { MV_START_LEFT,              "left"                          },
1816   { MV_START_RIGHT,             "right"                         },
1817   { MV_START_UP,                "up"                            },
1818   { MV_START_DOWN,              "down"                          },
1819
1820   { -1,                         NULL                            }
1821 };
1822
1823 static struct ValueTextInfo options_player_speed[] =
1824 {
1825   { 0,                          "frozen"                        },
1826   { 1,                          "very slow"                     },
1827   { 2,                          "slow"                          },
1828   { 4,                          "normal"                        },
1829   { 8,                          "fast"                          },
1830   { 16,                         "very fast"                     },
1831   { 32,                         "ultrafast"                     },
1832
1833   { -1,                         NULL                            }
1834 };
1835
1836 static struct ValueTextInfo options_access_type[] =
1837 {
1838   { EP_WALKABLE,                "walkable"                      },
1839   { EP_PASSABLE,                "passable"                      },
1840
1841   { -1,                         NULL                            }
1842 };
1843
1844 static struct ValueTextInfo options_access_layer[] =
1845 {
1846   { EP_ACCESSIBLE_OVER,         "over"                          },
1847   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
1848   { EP_ACCESSIBLE_UNDER,        "under"                         },
1849
1850   { -1,                         NULL                            }
1851 };
1852
1853 static struct ValueTextInfo options_access_protected[] =
1854 {
1855   { 0,                          "unprotected"                   },
1856   { 1,                          "protected"                     },
1857
1858   { -1,                         NULL                            }
1859 };
1860
1861 static struct ValueTextInfo options_access_direction[] =
1862 {
1863   { MV_NO_DIRECTION,            "no direction"                  },
1864   { MV_LEFT,                    "left"                          },
1865   { MV_RIGHT,                   "right"                         },
1866   { MV_UP,                      "up"                            },
1867   { MV_DOWN,                    "down"                          },
1868   { MV_LEFT  | MV_UP,           "left + up"                     },
1869   { MV_LEFT  | MV_DOWN,         "left + down"                   },
1870   { MV_RIGHT | MV_UP,           "right + up"                    },
1871   { MV_RIGHT | MV_DOWN,         "right + down"                  },
1872   { MV_HORIZONTAL,              "horizontal"                    },
1873   { MV_VERTICAL,                "vertical"                      },
1874   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
1875   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
1876   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
1877   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
1878   { MV_ALL_DIRECTIONS,          "all directions"                },
1879
1880   { -1,                         NULL                            }
1881 };
1882
1883 static struct ValueTextInfo options_walk_to_action[] =
1884 {
1885   { EP_DIGGABLE,                "diggable"                      },
1886   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
1887   { EP_DROPPABLE,               "collectible & droppable"       },
1888   { EP_THROWABLE,               "collectible & throwable"       },
1889   { EP_PUSHABLE,                "pushable"                      },
1890
1891   { -1,                         NULL                            }
1892 };
1893
1894 static struct ValueTextInfo options_move_pattern[] =
1895 {
1896   { MV_LEFT,                    "left"                          },
1897   { MV_RIGHT,                   "right"                         },
1898   { MV_UP,                      "up"                            },
1899   { MV_DOWN,                    "down"                          },
1900   { MV_HORIZONTAL,              "horizontal"                    },
1901   { MV_VERTICAL,                "vertical"                      },
1902   { MV_ALL_DIRECTIONS,          "all directions"                },
1903   { MV_WIND_DIRECTION,          "wind direction"                },
1904   { MV_TOWARDS_PLAYER,          "towards player"                },
1905   { MV_AWAY_FROM_PLAYER,        "away from player"              },
1906   { MV_ALONG_LEFT_SIDE,         "along left side"               },
1907   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
1908   { MV_TURNING_LEFT,            "turning left"                  },
1909   { MV_TURNING_RIGHT,           "turning right"                 },
1910   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
1911   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
1912   { MV_TURNING_RANDOM,          "turning random"                },
1913   { MV_MAZE_RUNNER,             "maze runner style"             },
1914   { MV_MAZE_HUNTER,             "maze hunter style"             },
1915   { MV_WHEN_PUSHED,             "when pushed"                   },
1916   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
1917
1918   { -1,                         NULL                            }
1919 };
1920
1921 static struct ValueTextInfo options_move_direction[] =
1922 {
1923   { MV_START_AUTOMATIC,         "automatic"                     },
1924   { MV_START_LEFT,              "left"                          },
1925   { MV_START_RIGHT,             "right"                         },
1926   { MV_START_UP,                "up"                            },
1927   { MV_START_DOWN,              "down"                          },
1928   { MV_START_RANDOM,            "random"                        },
1929   { MV_START_PREVIOUS,          "previous"                      },
1930
1931   { -1,                         NULL                            }
1932 };
1933
1934 static struct ValueTextInfo options_move_stepsize[] =
1935 {
1936   { 0,                          "not moving"                    },
1937   { 1,                          "very slow"                     },
1938   { 2,                          "slow"                          },
1939   { 4,                          "normal"                        },
1940   { 8,                          "fast"                          },
1941   { 16,                         "very fast"                     },
1942   { 32,                         "even faster"                   },
1943
1944   { -1,                         NULL                            }
1945 };
1946
1947 static struct ValueTextInfo options_move_leave_type[] =
1948 {
1949   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
1950   { LEAVE_TYPE_LIMITED,         "change it to"                  },
1951
1952   { -1,                         NULL                            }
1953 };
1954
1955 static struct ValueTextInfo options_smash_targets[] =
1956 {
1957   { EP_CAN_SMASH_PLAYER,        "player"                        },
1958 #if 0
1959   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
1960 #endif
1961   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
1962
1963   { -1,                         NULL                            }
1964 };
1965
1966 static struct ValueTextInfo options_slippery_type[] =
1967 {
1968   { SLIPPERY_ANY_RANDOM,        "random"                        },
1969   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
1970   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
1971   { SLIPPERY_ONLY_LEFT,         "only left"                     },
1972   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
1973
1974   { -1,                         NULL                            }
1975 };
1976
1977 static struct ValueTextInfo options_deadliness[] =
1978 {
1979   { EP_DONT_RUN_INTO,           "running into"                  },
1980   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
1981   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
1982   { EP_DONT_TOUCH,              "touching"                      },
1983
1984   { -1,                         NULL                            }
1985 };
1986
1987 static struct ValueTextInfo options_explosion_type[] =
1988 {
1989   { EXPLODES_3X3,               "3x3"                           },
1990   { EXPLODES_CROSS,             "3+3"                           },
1991   { EXPLODES_1X1,               "1x1"                           },
1992
1993   { -1,                         NULL                            }
1994 };
1995
1996 static struct ValueTextInfo options_time_units[] =
1997 {
1998   { 1,                          "frames"                        },
1999   { FRAMES_PER_SECOND,          "seconds"                       },
2000
2001   { -1,                         NULL                            }
2002 };
2003
2004 static struct ValueTextInfo options_change_direct_action[] =
2005 {
2006   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
2007   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
2008   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
2009   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
2010   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
2011   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
2012   { CE_LEFT_BY_PLAYER,          "left by player"                },
2013   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
2014   { CE_SWITCHED,                "switched"                      },
2015   { CE_HITTING_SOMETHING,       "hitting something"             },
2016   { CE_HIT_BY_SOMETHING,        "hit by something"              },
2017 #if 0
2018   { CE_BLOCKED,                 "blocked"                       },
2019 #endif
2020   { CE_IMPACT,                  "impact (on something)"         },
2021   { CE_SMASHED,                 "smashed (from above)"          },
2022 #if 0
2023   { CE_VALUE_CHANGES,           "CE value changes"              },
2024   { CE_SCORE_CHANGES,           "CE score changes"              },
2025 #endif
2026   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
2027   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
2028   { CE_UNDEFINED,               " "                             },
2029   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2030   { CE_CLICKED_BY_MOUSE,        "clicked by mouse"              },
2031   { CE_PRESSED_BY_MOUSE,        "pressed by mouse"              },
2032   { CE_UNDEFINED,               " "                             },
2033   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2034   { CE_NEXT_TO_PLAYER,          "next to player"                },
2035
2036   { -1,                         NULL                            }
2037 };
2038
2039 static struct ValueTextInfo options_change_other_action[] =
2040 {
2041   { CE_PLAYER_TOUCHES_X,        "player touches"                },
2042   { CE_PLAYER_PRESSES_X,        "player presses"                },
2043   { CE_PLAYER_SWITCHES_X,       "player switches"               },
2044   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
2045   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
2046   { CE_PLAYER_ENTERS_X,         "player enters"                 },
2047   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
2048   { CE_PLAYER_DIGS_X,           "player digs"                   },
2049   { CE_PLAYER_COLLECTS_X,       "player collects"               },
2050   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
2051   { CE_TOUCHING_X,              "touching"                      },
2052   { CE_HITTING_X,               "hitting"                       },
2053   { CE_DIGGING_X,               "digging"                       },
2054   { CE_HIT_BY_X,                "hit by"                        },
2055   { CE_SWITCH_OF_X,             "switch of"                     },
2056   { CE_CHANGE_OF_X,             "change by page of"             },
2057   { CE_EXPLOSION_OF_X,          "explosion of"                  },
2058   { CE_MOVE_OF_X,               "move of"                       },
2059   { CE_CREATION_OF_X,           "creation of"                   },
2060   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
2061   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
2062   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
2063   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
2064   { CE_UNDEFINED,               " "                             },
2065   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2066   { CE_MOUSE_CLICKED_ON_X,      "mouse clicked on"              },
2067   { CE_MOUSE_PRESSED_ON_X,      "mouse pressed on"              },
2068   { CE_UNDEFINED,               " "                             },
2069   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2070   { CE_PLAYER_NEXT_TO_X,        "player next to"                },
2071   { CE_NEXT_TO_X,               "next to"                       },
2072
2073   { -1,                         NULL                            }
2074 };
2075
2076 static struct ValueTextInfo options_change_trigger_side[] =
2077 {
2078   { CH_SIDE_LEFT,               "left"                          },
2079   { CH_SIDE_RIGHT,              "right"                         },
2080   { CH_SIDE_TOP,                "top"                           },
2081   { CH_SIDE_BOTTOM,             "bottom"                        },
2082   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
2083   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
2084   { CH_SIDE_ANY,                "any"                           },
2085
2086   { -1,                         NULL                            }
2087 };
2088
2089 static struct ValueTextInfo options_change_trigger_player[] =
2090 {
2091   { CH_PLAYER_1,                "1"                             },
2092   { CH_PLAYER_2,                "2"                             },
2093   { CH_PLAYER_3,                "3"                             },
2094   { CH_PLAYER_4,                "4"                             },
2095   { CH_PLAYER_ANY,              "any"                           },
2096
2097   { -1,                         NULL                            }
2098 };
2099
2100 static struct ValueTextInfo options_change_trigger_page[] =
2101 {
2102   { (1u << 0),                  "1"                             },
2103   { (1u << 1),                  "2"                             },
2104   { (1u << 2),                  "3"                             },
2105   { (1u << 3),                  "4"                             },
2106   { (1u << 4),                  "5"                             },
2107   { (1u << 5),                  "6"                             },
2108   { (1u << 6),                  "7"                             },
2109   { (1u << 7),                  "8"                             },
2110   { (1u << 8),                  "9"                             },
2111   { (1u << 9),                  "10"                            },
2112   { (1u << 10),                 "11"                            },
2113   { (1u << 11),                 "12"                            },
2114   { (1u << 12),                 "13"                            },
2115   { (1u << 13),                 "14"                            },
2116   { (1u << 14),                 "15"                            },
2117   { (1u << 15),                 "16"                            },
2118   { (1u << 16),                 "17"                            },
2119   { (1u << 17),                 "18"                            },
2120   { (1u << 18),                 "19"                            },
2121   { (1u << 19),                 "20"                            },
2122   { (1u << 20),                 "21"                            },
2123   { (1u << 21),                 "22"                            },
2124   { (1u << 22),                 "23"                            },
2125   { (1u << 23),                 "24"                            },
2126   { (1u << 24),                 "25"                            },
2127   { (1u << 25),                 "26"                            },
2128   { (1u << 26),                 "27"                            },
2129   { (1u << 27),                 "28"                            },
2130   { (1u << 28),                 "29"                            },
2131   { (1u << 29),                 "30"                            },
2132   { (1u << 30),                 "31"                            },
2133   { (1u << 31),                 "32"                            },
2134   { CH_PAGE_ANY,                "any"                           },
2135
2136   { -1,                         NULL                            }
2137 };
2138
2139 static struct ValueTextInfo options_change_replace_when[] =
2140 {
2141   { CP_WHEN_EMPTY,              "empty"                         },
2142   { CP_WHEN_WALKABLE,           "walkable"                      },
2143   { CP_WHEN_DIGGABLE,           "diggable"                      },
2144   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
2145   { CP_WHEN_REMOVABLE,          "removable"                     },
2146   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
2147
2148   { -1,                         NULL                            }
2149 };
2150
2151 static struct ValueTextInfo options_action_type[] =
2152 {
2153   { CA_NO_ACTION,               "no action"                     },
2154   { CA_UNDEFINED,               " "                             },
2155   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
2156   { CA_RESTART_LEVEL,           "restart level"                 },
2157   { CA_SHOW_ENVELOPE,           "show envelope"                 },
2158   { CA_SET_LEVEL_TIME,          "set time"                      },
2159   { CA_SET_LEVEL_SCORE,         "set score"                     },
2160   { CA_SET_LEVEL_GEMS,          "set gems"                      },
2161   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
2162   { CA_SET_LEVEL_RANDOM_SEED,   "set random seed"               },
2163   { CA_UNDEFINED,               " "                             },
2164   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
2165   { CA_MOVE_PLAYER,             "move player"                   },
2166   { CA_MOVE_PLAYER_NEW,         "move player new"               },
2167   { CA_EXIT_PLAYER,             "exit player"                   },
2168   { CA_KILL_PLAYER,             "kill player"                   },
2169   { CA_SET_PLAYER_KEYS,         "set keys"                      },
2170   { CA_SET_PLAYER_SPEED,        "set speed"                     },
2171   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
2172   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
2173   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
2174   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
2175   { CA_UNDEFINED,               " "                             },
2176   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
2177   { CA_SET_CE_VALUE,            "set CE value"                  },
2178   { CA_SET_CE_SCORE,            "set CE score"                  },
2179   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
2180   { CA_UNDEFINED,               " "                             },
2181   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
2182   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
2183
2184   { -1,                         NULL                            }
2185 };
2186
2187 static struct ValueTextInfo options_action_mode_none[] =
2188 {
2189   { CA_MODE_UNDEFINED,          " "                             },
2190
2191   { -1,                         NULL                            }
2192 };
2193
2194 static struct ValueTextInfo options_action_mode_assign[] =
2195 {
2196   { CA_MODE_SET,                "="                             },
2197
2198   { -1,                         NULL                            }
2199 };
2200
2201 static struct ValueTextInfo options_action_mode_add_remove[] =
2202 {
2203   { CA_MODE_ADD,                "+"                             },
2204   { CA_MODE_SUBTRACT,           "-"                             },
2205
2206   { -1,                         NULL                            }
2207 };
2208
2209 static struct ValueTextInfo options_action_mode_calculate[] =
2210 {
2211   { CA_MODE_SET,                "="                             },
2212   { CA_MODE_ADD,                "+"                             },
2213   { CA_MODE_SUBTRACT,           "-"                             },
2214   { CA_MODE_MULTIPLY,           "*"                             },
2215   { CA_MODE_DIVIDE,             "/"                             },
2216   { CA_MODE_MODULO,             "%"                             },
2217
2218   { -1,                         NULL                            }
2219 };
2220
2221 static struct ValueTextInfo options_action_arg_none[] =
2222 {
2223   { CA_ARG_UNDEFINED,           "         "                     },
2224
2225   { -1,                         NULL                            }
2226 };
2227
2228 static struct ValueTextInfo options_action_arg_player[] =
2229 {
2230   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2231   { CA_ARG_PLAYER_1,            "1"                             },
2232   { CA_ARG_PLAYER_2,            "2"                             },
2233   { CA_ARG_PLAYER_3,            "3"                             },
2234   { CA_ARG_PLAYER_4,            "4"                             },
2235   { CA_ARG_PLAYER_ANY,          "any"                           },
2236   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2237   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2238
2239   { -1,                         NULL                            }
2240 };
2241
2242 static struct ValueTextInfo options_action_arg_number[] =
2243 {
2244   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2245   { CA_ARG_0,                   "0"                             },
2246   { CA_ARG_1,                   "1"                             },
2247   { CA_ARG_2,                   "2"                             },
2248   { CA_ARG_3,                   "3"                             },
2249   { CA_ARG_4,                   "4"                             },
2250   { CA_ARG_5,                   "5"                             },
2251   { CA_ARG_10,                  "10"                            },
2252   { CA_ARG_100,                 "100"                           },
2253   { CA_ARG_1000,                "1000"                          },
2254   { CA_ARG_UNDEFINED,           " "                             },
2255   { CA_ARG_NUMBER_MIN,          "min"                           },
2256   { CA_ARG_NUMBER_MAX,          "max"                           },
2257   { CA_ARG_UNDEFINED,           " "                             },
2258   { CA_ARG_NUMBER_RESET,        "reset"                         },
2259   { CA_ARG_UNDEFINED,           " "                             },
2260   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2261   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2262   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2263   { CA_ARG_UNDEFINED,           " "                             },
2264   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2265   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2266   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2267   { CA_ARG_UNDEFINED,           " "                             },
2268   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2269   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2270   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2271   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2272   { CA_ARG_UNDEFINED,           " "                             },
2273   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2274   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2275   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2276   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2277
2278   { -1,                         NULL                            }
2279 };
2280
2281 static struct ValueTextInfo options_action_arg_value[] =
2282 {
2283   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2284   { CA_ARG_0,                   "0"                             },
2285   { CA_ARG_1,                   "1"                             },
2286   { CA_ARG_2,                   "2"                             },
2287   { CA_ARG_3,                   "3"                             },
2288   { CA_ARG_4,                   "4"                             },
2289   { CA_ARG_5,                   "5"                             },
2290   { CA_ARG_10,                  "10"                            },
2291   { CA_ARG_100,                 "100"                           },
2292   { CA_ARG_1000,                "1000"                          },
2293   { CA_ARG_UNDEFINED,           " "                             },
2294   { CA_ARG_NUMBER_MIN,          "min"                           },
2295   { CA_ARG_NUMBER_MAX,          "max"                           },
2296   { CA_ARG_UNDEFINED,           " "                             },
2297   { CA_ARG_NUMBER_RESET,        "reset"                         },
2298   { CA_ARG_UNDEFINED,           " "                             },
2299   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2300   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2301   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2302   { CA_ARG_UNDEFINED,           " "                             },
2303   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2304   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2305   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2306   { CA_ARG_UNDEFINED,           " "                             },
2307   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2308   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2309   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2310   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2311   { CA_ARG_UNDEFINED,           " "                             },
2312   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2313   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2314   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2315   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2316   { CA_ARG_UNDEFINED,           " "                             },
2317   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2318   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2319   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2320   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2321
2322   { -1,                         NULL                            }
2323 };
2324
2325 static struct ValueTextInfo options_action_arg_envelope[] =
2326 {
2327   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2328   { CA_ARG_1,                   "1"                             },
2329   { CA_ARG_2,                   "2"                             },
2330   { CA_ARG_3,                   "3"                             },
2331   { CA_ARG_4,                   "4"                             },
2332   { CA_ARG_UNDEFINED,           " "                             },
2333   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2334   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2335   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2336   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2337
2338   { -1,                         NULL                            }
2339 };
2340
2341 static struct ValueTextInfo options_action_arg_key[] =
2342 {
2343   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2344   { CA_ARG_1,                   "1"                             },
2345   { CA_ARG_2,                   "2"                             },
2346   { CA_ARG_3,                   "3"                             },
2347   { CA_ARG_4,                   "4"                             },
2348   { CA_ARG_5,                   "5"                             },
2349   { CA_ARG_6,                   "6"                             },
2350   { CA_ARG_7,                   "7"                             },
2351   { CA_ARG_8,                   "8"                             },
2352   { CA_ARG_UNDEFINED,           " "                             },
2353   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2354   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2355   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2356   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2357
2358   { -1,                         NULL                            }
2359 };
2360
2361 static struct ValueTextInfo options_action_arg_speed[] =
2362 {
2363   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2364   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2365   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2366   { CA_ARG_SPEED_SLOW,          "slow"                          },
2367   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2368   { CA_ARG_SPEED_FAST,          "fast"                          },
2369   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2370   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2371   { CA_ARG_UNDEFINED,           " "                             },
2372   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2373   { CA_ARG_SPEED_FASTER,        "faster"                        },
2374   { CA_ARG_UNDEFINED,           " "                             },
2375   { CA_ARG_SPEED_RESET,         "reset"                         },
2376
2377   { -1,                         NULL                            }
2378 };
2379
2380 static struct ValueTextInfo options_action_arg_shield[] =
2381 {
2382   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2383   { CA_ARG_SHIELD_OFF,          "off"                           },
2384   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2385   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2386
2387   { -1,                         NULL                            }
2388 };
2389
2390 static struct ValueTextInfo options_action_arg_artwork[] =
2391 {
2392   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2393   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2394   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2395   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2396   { CA_ARG_UNDEFINED,           " "                             },
2397   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2398
2399   { -1,                         NULL                            }
2400 };
2401
2402 static struct ValueTextInfo options_action_arg_gravity[] =
2403 {
2404   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2405   { CA_ARG_GRAVITY_ON,          "on"                            },
2406   { CA_ARG_GRAVITY_OFF,         "off"                           },
2407   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2408
2409   { -1,                         NULL                            }
2410 };
2411
2412 static struct ValueTextInfo options_action_arg_direction[] =
2413 {
2414   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2415   { CA_ARG_DIRECTION_NONE,      "none"                          },
2416   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2417   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2418   { CA_ARG_DIRECTION_UP,        "up"                            },
2419   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2420   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2421   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2422
2423   { -1,                         NULL                            }
2424 };
2425
2426 static struct ValueTextInfo options_action_arg_scan_mode[] =
2427 {
2428   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2429   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2430   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2431
2432   { -1,                         NULL                            }
2433 };
2434
2435 static struct ValueTextInfo options_action_arg_inventory[] =
2436 {
2437   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2438   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2439   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2440   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2441   { CA_ARG_UNDEFINED,           " "                             },
2442   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2443   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2444   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2445   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2446   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2447   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2448   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2449   { CA_ARG_UNDEFINED,           " "                             },
2450   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2451
2452   { -1,                         NULL                            }
2453 };
2454
2455 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2456 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2457 {
2458   { -1,                         NULL                            }
2459 };
2460
2461 static struct ValueTextInfo options_group_choice_mode[] =
2462 {
2463   { ANIM_RANDOM,                "random"                        },
2464   { ANIM_LOOP,                  "loop"                          },
2465   { ANIM_LINEAR,                "linear"                        },
2466   { ANIM_PINGPONG,              "pingpong"                      },
2467   { ANIM_PINGPONG2,             "pingpong 2"                    },
2468   { ANIM_LEVEL_NR,              "level number"                  },
2469
2470   { -1,                         NULL                            }
2471 };
2472
2473 static struct ValueTextInfo *action_arg_modes[] =
2474 {
2475   options_action_mode_none,
2476   options_action_mode_assign,
2477   options_action_mode_add_remove,
2478   options_action_mode_calculate,
2479 };
2480
2481 static struct
2482 {
2483   int value;
2484   int mode;
2485   struct ValueTextInfo *options;
2486 }
2487 action_arg_options[] =
2488 {
2489   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2490   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2491   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2492   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2493   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2494   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2495   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2496   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2497   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2498   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2499   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2500   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2501   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2502   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2503   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2504   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2505   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2506   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2507   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2508   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2509   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2510   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2511
2512   { -1,                         FALSE,  NULL                            }
2513 };
2514
2515 static struct
2516 {
2517   int x, y;
2518   int gadget_id;
2519   int gadget_id_align;
2520   int size;     // char size of selectbox or '-1' (dynamically determined)
2521   struct ValueTextInfo *options;
2522   int *value;
2523   char *text_above, *text_left, *text_right, *infotext;
2524 } selectbox_info[ED_NUM_SELECTBOX] =
2525 {
2526   // ---------- level and editor settings -------------------------------------
2527
2528   {
2529     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2530     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2531     -1,
2532     options_time_or_steps,
2533     &level.use_step_counter,
2534     NULL, NULL, "(0 => no limit)",      "time or step limit"
2535   },
2536   {
2537     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2538     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2539     -1,
2540     options_time_score_base,
2541     &level.time_score_base,
2542     NULL, NULL, NULL,                   "time score for 1 or 10 seconds/steps"
2543   },
2544   {
2545     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2546     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2547     -1,
2548     options_game_engine_type,
2549     &level.game_engine_type,
2550     NULL, "game engine:", NULL,         "game engine"
2551   },
2552   {
2553     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2554     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2555     -1,
2556     options_levelset_save_mode,
2557     &levelset_save_mode,
2558     "Action:", NULL, NULL,              "action when saving level set"
2559   },
2560
2561   // ---------- element settings: configure (several elements) ----------------
2562
2563   {
2564     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2565     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2566     -1,
2567     options_wind_direction,
2568     &level.wind_direction_initial,
2569     NULL, "initial wind direction:", NULL,      "initial wind direction"
2570   },
2571   {
2572     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2573     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2574     -1,
2575     options_player_speed,
2576     &level.initial_player_stepsize[0],
2577     NULL, "initial player speed:", NULL,        "initial player speed"
2578   },
2579   {
2580     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2581     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2582     -1,
2583     options_group_choice_mode,
2584     &level.mm_ball_choice_mode,
2585     NULL, "choice type:", NULL,         "type of content choice"
2586   },
2587
2588   // ---------- element settings: configure 1 (custom elements) ---------------
2589
2590   {
2591     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2592     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2593     -1,
2594     options_access_type,
2595     &custom_element.access_type,
2596     NULL, NULL, NULL,                   "type of access to this field"
2597   },
2598   {
2599     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2600     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2601     -1,
2602     options_access_layer,
2603     &custom_element.access_layer,
2604     NULL, NULL, NULL,                   "layer of access for this field"
2605   },
2606   {
2607     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2608     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2609     -1,
2610     options_access_protected,
2611     &custom_element.access_protected,
2612     NULL, NULL, NULL,                   "protected access for this field"
2613   },
2614   {
2615     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2616     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2617     -1,
2618     options_access_direction,
2619     &custom_element.access_direction,
2620     NULL, "from", NULL,                 "access direction for this field"
2621   },
2622   {
2623     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2624     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2625     -1,
2626     options_walk_to_action,
2627     &custom_element.walk_to_action,
2628     NULL, NULL, NULL,                   "diggable/collectible/pushable"
2629   },
2630
2631   // ---------- element settings: configure 2 (custom elements) ---------------
2632
2633   {
2634     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2635     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2636     -1,
2637     options_move_pattern,
2638     &custom_element.move_pattern,
2639     NULL, "can move", NULL,             "element move pattern"
2640   },
2641   {
2642     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2643     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2644     -1,
2645     options_move_direction,
2646     &custom_element.move_direction_initial,
2647     NULL, "starts moving", NULL,        "initial element move direction"
2648   },
2649   {
2650     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2651     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2652     -1,
2653     options_move_stepsize,
2654     &custom_element.move_stepsize,
2655     NULL, "move/fall speed", NULL,      "speed of element movement"
2656   },
2657   {
2658     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2659     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2660     -1,
2661     options_move_leave_type,
2662     &custom_element.move_leave_type,
2663     // left text with leading spaces to place gadget next to "can dig" gadget
2664     // (needed because drawing area gadgets created after selectbox gadgets)
2665     // NULL, "can dig:    can", ":",    "leave behind or change element"
2666     NULL, "            can", ":",       "leave behind or change element"
2667   },
2668   {
2669     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2670     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2671     -1,
2672     options_smash_targets,
2673     &custom_element.smash_targets,
2674     NULL, "can smash", NULL,            "elements that can be smashed"
2675   },
2676   {
2677     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2678     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2679     -1,
2680     options_slippery_type,
2681     &custom_element.slippery_type,
2682     NULL, "slippery", NULL,             "where other elements fall down"
2683   },
2684   {
2685     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2686     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2687     -1,
2688     options_deadliness,
2689     &custom_element.deadliness,
2690     NULL, "deadly when", NULL,          "deadliness of element"
2691   },
2692   {
2693     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2694     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2695     -1,
2696     options_explosion_type,
2697     &custom_element.explosion_type,
2698     NULL, "can explode", NULL,          "explosion type"
2699   },
2700
2701   // ---------- element settings: advanced (custom elements) ------------------
2702
2703   {
2704     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2705     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2706     -1,
2707     options_time_units,
2708     &custom_element_change.delay_frames,
2709     NULL, "delay time given in", NULL,  "delay time units for change"
2710   },
2711   {
2712     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2713     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2714     -1,
2715     options_change_direct_action,
2716     &custom_element_change.direct_action,
2717     NULL, NULL, NULL,                   "type of direct action"
2718   },
2719   {
2720     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2721     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2722     -1,
2723     options_change_other_action,
2724     &custom_element_change.other_action,
2725     NULL, NULL, "element:",             "type of other element action"
2726   },
2727   {
2728     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2729     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2730     -1,
2731     options_change_trigger_side,
2732     &custom_element_change.trigger_side,
2733     NULL, "at", "side",                 "element side triggering change"
2734   },
2735   {
2736     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2737     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2738     -1,
2739     options_change_trigger_player,
2740     &custom_element_change.trigger_player,
2741     NULL, "player:", " ",               "player that causes change"
2742   },
2743   {
2744     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2745     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2746     -1,
2747     options_change_trigger_page,
2748     &custom_element_change.trigger_page,
2749     NULL, "page:", NULL,                "change page that causes change"
2750   },
2751   {
2752     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2753     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2754     -1,
2755     options_change_replace_when,
2756     &custom_element_change.replace_when,
2757     NULL, "replace when", NULL,         "which elements can be replaced"
2758   },
2759   {
2760     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
2761     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
2762     15,
2763     options_action_type,
2764     &custom_element_change.action_type,
2765     NULL, NULL, NULL,                   "action on specified condition"
2766   },
2767   {
2768     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2769     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
2770     -1,
2771     options_action_mode_none,
2772     &custom_element_change.action_mode,
2773     NULL, NULL, NULL,                   "action operator"
2774   },
2775   {
2776     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2777     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
2778     -1,
2779     options_action_arg_none,
2780     &custom_element_change.action_arg,
2781     NULL, NULL, NULL,                   "action parameter"
2782   },
2783   {
2784     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
2785     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
2786     3,
2787     options_change_page,
2788     &custom_element.current_change_page,
2789     NULL, NULL, NULL,                   "element change page"
2790   },
2791
2792   // ---------- element settings: configure (group elements) ------------------
2793
2794   {
2795     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2796     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
2797     -1,
2798     options_group_choice_mode,
2799     &group_element_info.choice_mode,
2800     NULL, "choice type:", NULL,         "type of group element choice"
2801   },
2802 };
2803
2804 static struct
2805 {
2806   int x, y;
2807   int gadget_id;
2808   int gadget_id_align;
2809   int size;
2810   char *text;
2811   char *text_above, *text_left, *text_right, *infotext;
2812 } textbutton_info[ED_NUM_TEXTBUTTONS] =
2813 {
2814   // ---------- level and editor settings (tabs) ------------------------------
2815
2816   {
2817     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
2818     GADGET_ID_LEVELCONFIG_LEVEL,        GADGET_ID_NONE,
2819     8,                                  "Level",
2820     NULL, NULL, NULL,                   "Configure level settings"
2821   },
2822   {
2823     -1,                                 -1,
2824     GADGET_ID_LEVELCONFIG_LEVELSET,     GADGET_ID_LEVELCONFIG_LEVEL,
2825     8,                                  "Levelset",
2826     NULL, NULL, NULL,                   "Update this or create new level set"
2827   },
2828   {
2829     -1,                                 -1,
2830     GADGET_ID_LEVELCONFIG_EDITOR,       GADGET_ID_LEVELCONFIG_LEVELSET,
2831     8,                                  "Editor",
2832     NULL, NULL, NULL,                   "Configure editor settings"
2833   },
2834
2835   // ---------- element settings (tabs) ---------------------------------------
2836
2837   {
2838     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
2839     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
2840     8,                                  "Info",
2841     NULL, NULL, NULL,                   "Show information about element"
2842   },
2843   {
2844     -1,                                 -1,
2845     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
2846     8,                                  "Config",
2847     NULL, NULL, NULL,                   "Configure element properties"
2848   },
2849   {
2850     -1,                                 -1,
2851     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
2852     8,                                  "Config 1",
2853     NULL, NULL, NULL,                   "Configure element properties, part 1"
2854   },
2855   {
2856     -1,                                 -1,
2857     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
2858     8,                                  "Config 2",
2859     NULL, NULL, NULL,                   "Configure element properties, part 2"
2860   },
2861   {
2862     -1,                                 -1,
2863     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
2864     8,                                  "Change",
2865     NULL, NULL, NULL,                   "Configure custom element change pages"
2866   },
2867
2868   // ---------- level and editor settings (buttons) ---------------------------
2869
2870   {
2871     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2872     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
2873     -1,                                 "Save",
2874     NULL, NULL, NULL,                   "Update or create level set"
2875   },
2876   {
2877     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
2878     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
2879     -1,                                 "Save",
2880     NULL, NULL,                         "this level as level template",
2881     "Save current settings as new template"
2882   },
2883
2884   // ---------- element settings (buttons) ------------------------------------
2885
2886   {
2887     -1,                                 -1,
2888     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
2889     -1,                                 "Save",
2890     NULL, " ",                          "As Template",
2891     "Save current settings as new template"
2892   },
2893   {
2894     -1,                                 -1,
2895     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
2896     -1,                                 "New",
2897     NULL, NULL, NULL,                   "Add new change page"
2898   },
2899   {
2900     -1,                                 -1,
2901     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
2902     -1,                                 "Delete",
2903     NULL, NULL, NULL,                   "Delete current change page"
2904   },
2905 };
2906
2907 static struct
2908 {
2909   int graphic;
2910   int x, y;
2911   int gadget_id;
2912   int gadget_id_align;
2913   char *text_left, *text_right, *infotext;
2914 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
2915 {
2916   {
2917     IMG_EDITOR_COUNTER_DOWN,
2918     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
2919     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
2920     NULL, NULL,                         "select previous change page"
2921   },
2922   {
2923     IMG_EDITOR_COUNTER_UP,
2924     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2925     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
2926     NULL, "change page",                "select next change page"
2927   },
2928   {
2929     IMG_GFX_EDITOR_BUTTON_CP_COPY,
2930     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2931     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
2932     " ", NULL,                          "copy settings from this change page"
2933   },
2934   {
2935     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
2936     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2937     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
2938     NULL, NULL,                         "paste settings to this change page"
2939   },
2940 };
2941
2942 static struct
2943 {
2944   int x, y;
2945 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
2946
2947 static struct
2948 {
2949   int graphic;
2950   int gadget_id;
2951   char *infotext;
2952 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
2953 {
2954   {
2955     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
2956     GADGET_ID_SCROLL_UP,
2957     "scroll level editing area up"
2958   },
2959   {
2960     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
2961     GADGET_ID_SCROLL_DOWN,
2962     "scroll level editing area down"
2963   },
2964   {
2965     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
2966     GADGET_ID_SCROLL_LEFT,
2967     "scroll level editing area left"
2968   },
2969   {
2970     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
2971     GADGET_ID_SCROLL_RIGHT,
2972     "scroll level editing area right"
2973   },
2974   {
2975     IMG_EDITOR_PALETTE_SCROLL_UP,
2976     GADGET_ID_SCROLL_LIST_UP,
2977     "scroll element list up ('Page Up')"
2978   },
2979   {
2980     IMG_EDITOR_PALETTE_SCROLL_DOWN,
2981     GADGET_ID_SCROLL_LIST_DOWN,
2982     "scroll element list down ('Page Down')"
2983   },
2984 };
2985
2986 static struct
2987 {
2988   int x, y;
2989   int width, height;
2990   int wheel_x, wheel_y;
2991   int wheel_width, wheel_height;
2992 } scrollbar_pos[ED_NUM_SCROLLBARS];
2993
2994 static struct
2995 {
2996   int graphic;
2997   int type;
2998   int gadget_id;
2999   char *infotext;
3000 } scrollbar_info[ED_NUM_SCROLLBARS] =
3001 {
3002   {
3003     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3004     GD_TYPE_SCROLLBAR_HORIZONTAL,
3005     GADGET_ID_SCROLL_HORIZONTAL,
3006     "scroll level editing area horizontally"
3007   },
3008   {
3009     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3010     GD_TYPE_SCROLLBAR_VERTICAL,
3011     GADGET_ID_SCROLL_VERTICAL,
3012     "scroll level editing area vertically"
3013   },
3014   {
3015     IMG_EDITOR_PALETTE_SCROLLBAR,
3016     GD_TYPE_SCROLLBAR_VERTICAL,
3017     GADGET_ID_SCROLL_LIST_VERTICAL,
3018     "scroll element list vertically"
3019   }
3020 };
3021
3022
3023 static struct
3024 {
3025   int x, y;
3026   int gadget_id;
3027   int gadget_id_align;
3028   int radio_button_nr;
3029   int *value;
3030   int checked_value;
3031   char *text_left, *text_right, *infotext;
3032 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3033 {
3034   {
3035     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3036     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3037     RADIO_NR_RANDOM_ELEMENTS,
3038     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3039     " ", "percentage",                  "use percentage for random elements"
3040   },
3041   {
3042     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3043     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3044     RADIO_NR_RANDOM_ELEMENTS,
3045     &random_placement_method,           RANDOM_USE_QUANTITY,
3046     " ", "quantity",                    "use quantity for random elements"
3047   }
3048 };
3049
3050 static struct
3051 {
3052   int x, y;
3053   int gadget_id;
3054   int gadget_id_align;
3055   boolean *value;
3056   char *text_above, *text_left, *text_right, *infotext;
3057 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3058 {
3059   // ---------- level and editor settings -------------------------------------
3060
3061   {
3062     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3063     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3064     &level.auto_count_gems,
3065     NULL, NULL,
3066     "automatically count gems needed",  "set counter to number of gems"
3067   },
3068   {
3069     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3070     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3071     &level.rate_time_over_score,
3072     NULL, NULL,
3073     "rate time/steps used over score",  "sort high scores by playing time/steps"
3074   },
3075   {
3076     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3077     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3078     &levelset_use_levelset_artwork,
3079     NULL, NULL,
3080     "use current custom artwork",       "use custom artwork of this level set"
3081   },
3082   {
3083     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3084     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3085     &levelset_copy_level_template,
3086     NULL, NULL,
3087     "copy current level template",      "copy level template of this level set"
3088   },
3089   {
3090     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3091     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3092     &random_placement_background_restricted,
3093     NULL, NULL,
3094     "restrict random placement to:",    "set random placement restriction"
3095   },
3096   {
3097     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3098     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3099     &setup.editor.use_template_for_new_levels,
3100     "Template for new levels and CE/GE:", NULL,
3101     "use template for new levels",      "use template for level properties"
3102   },
3103   {
3104     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3105     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3106     &level.use_custom_template,
3107     NULL, NULL,
3108     "use template for custom elements", "use template for custom properties"
3109   },
3110
3111   // ---------- element settings: configure (various elements) ----------------
3112
3113   {
3114     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3115     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3116     &stick_element_properties_window,
3117     NULL, NULL,
3118     "stick this screen to edit content","stick this screen to edit content"
3119   },
3120   {
3121     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3122     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3123     &level.em_slippery_gems,
3124     NULL, NULL,
3125     "slip down from certain flat walls","use EM/DC style slipping behaviour"
3126   },
3127   {
3128     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3129     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3130     &level.em_explodes_by_fire,
3131     NULL, NULL,
3132     "explodes with chain reaction",     "use R'n'D style explosion behaviour"
3133   },
3134   {
3135     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3136     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3137     &level.use_spring_bug,
3138     NULL, NULL,
3139     "use spring pushing bug",           "use odd spring pushing behaviour"
3140   },
3141   {
3142     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3143     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3144     &level.use_time_orb_bug,
3145     NULL, NULL,
3146     "use time orb bug",                 "use odd time orb behaviour"
3147   },
3148   {
3149     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3150     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3151     &level.use_life_bugs,
3152     NULL, NULL,
3153     "use buggy element behaviour",      "use odd (historic) element behaviour"
3154   },
3155   {
3156     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3157     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3158     &level.ball_random,
3159     NULL, NULL,
3160     "create single random element",     "only create one element from content"
3161   },
3162   {
3163     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3164     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3165     &level.ball_active_initial,
3166     NULL, NULL,
3167     "magic ball initially activated",   "activate magic ball after level start"
3168   },
3169   {
3170     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3171     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3172     &level.grow_into_diggable,
3173     NULL, NULL,
3174     "can grow into anything diggable",  "grow into more than just sand"
3175   },
3176   {
3177     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3178     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3179     &level.sb_fields_needed,
3180     NULL, NULL,
3181     "all fields need to be filled",     "require all SB fields to be solved"
3182   },
3183   {
3184     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3185     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3186     &level.sb_objects_needed,
3187     NULL, NULL,
3188     "all objects need to be placed",    "require all SB objects to be solved"
3189   },
3190   {
3191     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3192     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3193     &level.auto_exit_sokoban,
3194     NULL, NULL,
3195     "exit level if all tasks solved",   "automatically finish Sokoban levels"
3196   },
3197   {
3198     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3199     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3200     &level.solved_by_one_player,
3201     NULL, NULL,
3202     "only one player must enter exit",  "level solved by first player in exit"
3203   },
3204   {
3205     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3206     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3207     &level.finish_dig_collect,
3208     NULL, NULL,
3209     "CE action on finished dig/collect", "only finished dig/collect triggers CE"
3210   },
3211   {
3212     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3213     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3214     &level.keep_walkable_ce,
3215     NULL, NULL,
3216     "keep walkable CE changed to player", "keep CE changing to player if walkable"
3217   },
3218   {
3219     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3220     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3221     &level.continuous_snapping,
3222     NULL, NULL,
3223     "continuous snapping",              "use snapping without releasing key"
3224   },
3225   {
3226     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3227     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3228     &level.block_snap_field,
3229     NULL, NULL,
3230     "block snapped field when snapping", "use snapping delay to show animation"
3231   },
3232   {
3233     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3234     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3235     &level.block_last_field,
3236     NULL, NULL,
3237     "block last field when moving",     "player blocks last field when moving"
3238   },
3239   {
3240     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3241     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3242     &level.sp_block_last_field,
3243     NULL, NULL,
3244     "block last field when moving",     "player blocks last field when moving"
3245   },
3246   {
3247     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3248     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3249     &level.instant_relocation,
3250     NULL, NULL,
3251     "no scrolling when relocating",     "player gets relocated without delay"
3252   },
3253   {
3254     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3255     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3256     &level.shifted_relocation,
3257     NULL, NULL,
3258     "no centering when relocating",     "level not centered after relocation"
3259   },
3260   {
3261     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3262     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3263     &level.lazy_relocation,
3264     NULL, NULL,
3265     "only redraw off-screen relocation","no redraw if relocation target visible"
3266   },
3267   {
3268     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3269     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3270     &level.use_start_element[0],
3271     NULL, NULL,
3272     "use level start element:",        "start level at this element's position"
3273   },
3274   {
3275     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3276     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3277     &level.use_artwork_element[0],
3278     NULL, NULL,
3279     "use artwork from element:",        "use player artwork from other element"
3280   },
3281   {
3282     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3283     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3284     &level.use_explosion_element[0],
3285     NULL, NULL,
3286     "use explosion from element:",      "use explosion properties from element"
3287   },
3288   {
3289     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3290     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3291     &level.initial_player_gravity[0],
3292     NULL, NULL,
3293     "use initial gravity",              "set initial player gravity"
3294   },
3295   {
3296     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3297     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3298     &level.use_initial_inventory[0],
3299     NULL, NULL,
3300     "use initial inventory:",           "use collected elements on level start"
3301   },
3302   {
3303     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3304     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3305     &level.can_pass_to_walkable,
3306     NULL, NULL,
3307     "can pass to walkable element",     "player can pass to empty or walkable"
3308   },
3309   {
3310     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3311     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3312     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3313     NULL, NULL,
3314     "can fall into acid (with gravity)","player can fall into acid pool"
3315   },
3316   {
3317     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3318     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3319     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3320     NULL, NULL,
3321     "can move into acid",               "element can move into acid pool"
3322   },
3323   {
3324     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3325     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3326     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3327     NULL, NULL,
3328     "deadly when colliding with",       "element is deadly when hitting player"
3329   },
3330   {
3331     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3332     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3333     &level.envelope[0].autowrap,
3334     NULL, NULL,
3335     "auto-wrap",                        "automatically wrap envelope text"
3336   },
3337   {
3338     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3339     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3340     &level.envelope[0].centered,
3341     NULL, " ",
3342     "centered",                         "automatically center envelope text"
3343   },
3344   {
3345     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3346     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3347     &level.mm_laser_red,
3348     "choose color components for laser:", NULL,
3349     "red",                              "use red color components in laser"
3350   },
3351   {
3352     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3353     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3354     &level.mm_laser_green,
3355     NULL, NULL,
3356     "green",                            "use green color components in laser"
3357   },
3358   {
3359     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3360     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3361     &level.mm_laser_blue,
3362     NULL, NULL,
3363     "blue",                             "use blue color components in laser"
3364   },
3365   {
3366     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3367     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3368     &level.df_laser_red,
3369     "choose color components for laser:", NULL,
3370     "red",                              "use red color components in laser"
3371   },
3372   {
3373     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3374     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3375     &level.df_laser_green,
3376     NULL, NULL,
3377     "green",                            "use green color components in laser"
3378   },
3379   {
3380     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3381     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3382     &level.df_laser_blue,
3383     NULL, NULL,
3384     "blue",                             "use blue color components in laser"
3385   },
3386   {
3387     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3388     GADGET_ID_ROTATE_MM_BALL_CONTENT,   GADGET_ID_NONE,
3389     &level.rotate_mm_ball_content,
3390     NULL, NULL,
3391     "randomly rotate created content",  "randomly rotate newly created content"
3392   },
3393   {
3394     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3395     GADGET_ID_EXPLODE_MM_BALL,          GADGET_ID_NONE,
3396     &level.explode_mm_ball,
3397     NULL, NULL,
3398     "explode ball instead of melting",  "use explosion to release ball content"
3399   },
3400
3401   // ---------- element settings: configure 1 (custom elements) ---------------
3402
3403   {
3404     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3405     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3406     &custom_element.use_gfx_element,
3407     NULL, NULL,
3408     "use graphic of element:",          "use existing element graphic"
3409   },
3410   {
3411     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3412     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3413     &level.use_custom_template,
3414     NULL, NULL,
3415     "use template",                     "use template for custom properties"
3416   },
3417   {
3418     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3419     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3420     &custom_element_properties[EP_ACCESSIBLE],
3421     NULL, NULL,
3422     NULL,                               "player can walk to or pass this field"
3423   },
3424   {
3425     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3426     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3427     &custom_element_properties[EP_GRAVITY_REACHABLE],
3428     NULL, NULL,
3429     "reachable despite gravity",        "player can walk/dig despite gravity"
3430   },
3431   {
3432     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3433     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3434     &custom_element.use_last_ce_value,
3435     NULL, NULL,
3436     "use last CE value after change",   "use last CE value after change"
3437   },
3438   {
3439     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3440     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3441     &custom_element_properties[EP_WALK_TO_OBJECT],
3442     NULL, NULL,
3443     NULL,                               "player can dig/collect/push element"
3444   },
3445   {
3446     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3447     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3448     &custom_element_properties[EP_INDESTRUCTIBLE],
3449     NULL, NULL,
3450     "indestructible",                   "element is indestructible"
3451   },
3452
3453   // ---------- element settings: configure 2 (custom elements) ---------------
3454
3455   {
3456     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3457     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
3458     &custom_element_properties[EP_CAN_MOVE],
3459     NULL, NULL,
3460     NULL,                               "element can move with some pattern"
3461   },
3462   {
3463     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3464     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
3465     &custom_element_properties[EP_CAN_FALL],
3466     NULL, NULL,
3467     "can fall",                         "element can fall down"
3468   },
3469   {
3470     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
3471     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
3472     &custom_element_properties[EP_CAN_SMASH],
3473     NULL, " ",
3474     NULL,                               "element can smash other elements"
3475   },
3476   {
3477     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3478     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
3479     &custom_element_properties[EP_SLIPPERY],
3480     NULL, NULL,
3481     NULL,                               "other elements can fall down from it"
3482   },
3483   {
3484     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3485     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
3486     &custom_element_properties[EP_DEADLY],
3487     NULL, NULL,
3488     NULL,                               "element can kill the player"
3489   },
3490   {
3491     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3492     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
3493     &custom_element_properties[EP_CAN_EXPLODE],
3494     NULL, NULL,
3495     NULL,                               "element can explode"
3496   },
3497   {
3498     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
3499     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
3500     &custom_element_properties[EP_EXPLODES_BY_FIRE],
3501     NULL, NULL,
3502     "by fire",                          "element can explode by fire/explosion"
3503   },
3504   {
3505     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3506     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
3507     &custom_element_properties[EP_EXPLODES_SMASHED],
3508     NULL, " ",
3509     "smashed",                          "element can explode when smashed"
3510   },
3511   {
3512     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3513     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
3514     &custom_element_properties[EP_EXPLODES_IMPACT],
3515     NULL, " ",
3516     "impact",                           "element can explode on impact"
3517   },
3518
3519   // ---------- element settings: advanced (custom elements) ------------------
3520
3521   {
3522     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3523     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
3524     &custom_element_change.can_change,
3525     NULL, NULL,
3526     "element changes to:",              "change element on specified condition"
3527   },
3528   {
3529     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
3530     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
3531     &custom_element_change_events[CE_DELAY],
3532     NULL, NULL,
3533     NULL,                               "element changes after delay"
3534   },
3535   {
3536     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
3537     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
3538     &custom_element_change_events[CE_BY_DIRECT_ACTION],
3539     NULL, NULL,
3540     NULL,                               "element changes by direct action"
3541   },
3542   {
3543     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
3544     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
3545     &custom_element_change_events[CE_BY_OTHER_ACTION],
3546     NULL, NULL,
3547     NULL,                               "element changes by other element"
3548   },
3549   {
3550     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
3551     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
3552     &custom_element_change.explode,
3553     NULL, NULL,
3554     "explode instead of change",        "element explodes instead of change"
3555   },
3556   {
3557     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
3558     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
3559     &custom_element_change.use_target_content,
3560     NULL, NULL,
3561     "use extended change target:",      "element changes to more elements"
3562   },
3563   {
3564     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
3565     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
3566     &custom_element_change.only_if_complete,
3567     NULL, NULL,
3568     "replace all or nothing",           "only replace when all can be changed"
3569   },
3570   {
3571     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
3572     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
3573     &custom_element_change.use_random_replace,
3574     NULL, NULL,
3575     NULL,                               "use percentage for random replace"
3576   },
3577   {
3578     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3579     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
3580     &custom_element_change.has_action,
3581     NULL, NULL,
3582     NULL,                               "execute action on specified condition"
3583   },
3584 };
3585
3586 static struct
3587 {
3588   int x, y;
3589   int xoffset, yoffset;
3590   int gadget_id;
3591   int gadget_id_align;
3592   int *value;
3593   int area_xsize, area_ysize;
3594   char *text_left, *text_right, *text_above, *text_below, *infotext;
3595 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
3596 {
3597   // ---------- level playfield content ---------------------------------------
3598
3599   {
3600     0,                                  0,
3601     0,                                  0,
3602     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
3603     NULL,
3604     -1, -1,     // these values are not constant, but can change at runtime
3605     NULL, NULL, NULL, NULL,             NULL
3606   },
3607
3608   // ---------- yam yam content -----------------------------------------------
3609
3610   {
3611     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3612     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
3613     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
3614     &level.yamyam_content[0].e[0][0],   3, 3,
3615     NULL, NULL, NULL, "1",              NULL
3616   },
3617   {
3618     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3619     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
3620     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
3621     &level.yamyam_content[1].e[0][0],   3, 3,
3622     NULL, NULL, NULL, "2",              NULL
3623   },
3624   {
3625     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3626     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
3627     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
3628     &level.yamyam_content[2].e[0][0],   3, 3,
3629     NULL, NULL, NULL, "3",              NULL
3630   },
3631   {
3632     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3633     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
3634     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
3635     &level.yamyam_content[3].e[0][0],   3, 3,
3636     NULL, NULL, NULL, "4",              NULL
3637   },
3638   {
3639     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3640     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
3641     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
3642     &level.yamyam_content[4].e[0][0],   3, 3,
3643     NULL, NULL, NULL, "5",              NULL
3644   },
3645   {
3646     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3647     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
3648     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
3649     &level.yamyam_content[5].e[0][0],   3, 3,
3650     NULL, NULL, NULL, "6",              NULL
3651   },
3652   {
3653     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3654     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
3655     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
3656     &level.yamyam_content[6].e[0][0],   3, 3,
3657     NULL, NULL, NULL, "7",              NULL
3658   },
3659   {
3660     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3661     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
3662     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
3663     &level.yamyam_content[7].e[0][0],   3, 3,
3664     NULL, NULL, NULL, "8",              NULL
3665   },
3666
3667   // ---------- magic ball content --------------------------------------------
3668
3669   {
3670     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3671     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
3672     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
3673     &level.ball_content[0].e[0][0],     3, 3,
3674     NULL, NULL, NULL, "1",              NULL
3675   },
3676   {
3677     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3678     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
3679     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
3680     &level.ball_content[1].e[0][0],     3, 3,
3681     NULL, NULL, NULL, "2",              NULL
3682   },
3683   {
3684     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3685     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
3686     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
3687     &level.ball_content[2].e[0][0],     3, 3,
3688     NULL, NULL, NULL, "3",              NULL
3689   },
3690   {
3691     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3692     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
3693     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
3694     &level.ball_content[3].e[0][0],     3, 3,
3695     NULL, NULL, NULL, "4",              NULL
3696   },
3697   {
3698     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3699     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
3700     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
3701     &level.ball_content[4].e[0][0],     3, 3,
3702     NULL, NULL, NULL, "5",              NULL
3703   },
3704   {
3705     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3706     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
3707     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
3708     &level.ball_content[5].e[0][0],     3, 3,
3709     NULL, NULL, NULL, "6",              NULL
3710   },
3711   {
3712     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3713     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
3714     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
3715     &level.ball_content[6].e[0][0],     3, 3,
3716     NULL, NULL, NULL, "7",              NULL
3717   },
3718   {
3719     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3720     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
3721     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
3722     &level.ball_content[7].e[0][0],     3, 3,
3723     NULL, NULL, NULL, "8",              NULL
3724   },
3725
3726   // ---------- android content -----------------------------------------------
3727
3728   {
3729     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
3730     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3731     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
3732     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
3733     NULL, NULL, "elements:", NULL,      "elements android can clone"
3734   },
3735
3736   // ---------- amoeba content ------------------------------------------------
3737
3738   {
3739     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
3740     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3741     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
3742     &level.amoeba_content,              1, 1,
3743     "content:", NULL, NULL, NULL,       "amoeba content"
3744   },
3745
3746   // ---------- level start element -------------------------------------------
3747
3748   {
3749     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
3750     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3751     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
3752     &level.start_element[0],            1, 1,
3753     NULL, NULL, NULL, NULL,             "level start element"
3754   },
3755
3756   // ---------- player artwork element ----------------------------------------
3757
3758   {
3759     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
3760     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3761     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
3762     &level.artwork_element[0],          1, 1,
3763     NULL, NULL, NULL, NULL,             "element for player artwork"
3764   },
3765
3766   // ---------- player explosion element --------------------------------------
3767
3768   {
3769     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
3770     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3771     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
3772     &level.explosion_element[0],        1, 1,
3773     NULL, NULL, NULL, NULL,             "element for player explosion"
3774   },
3775
3776   // ---------- player initial inventory --------------------------------------
3777
3778   {
3779     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3780     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3781     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
3782     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
3783     NULL, NULL, NULL, NULL,             "content for initial inventory"
3784   },
3785
3786   // ---------- gray ball content -----------------------------------------
3787
3788   {
3789     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
3790     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3791     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
3792     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
3793     "content:", NULL, NULL, NULL,       "content for gray ball"
3794   },
3795
3796   // ---------- element settings: configure 1 (custom elements) ---------------
3797
3798   // ---------- custom graphic ------------------------------------------------
3799
3800   {
3801     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3802     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3803     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
3804     &custom_element.gfx_element_initial, 1, 1,
3805     NULL, NULL, NULL, NULL,             "custom graphic element"
3806   },
3807
3808   // ---------- element settings: configure 2 (custom elements) ---------------
3809
3810   // ---------- custom content (when exploding) -------------------------------
3811
3812   {
3813     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
3814     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
3815     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
3816     &custom_element.content.e[0][0],    3, 3,
3817     "content:", NULL, NULL, NULL,       NULL
3818   },
3819
3820   // ---------- custom enter and leave element (when moving) ------------------
3821
3822   {
3823     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
3824     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3825     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
3826     &custom_element.move_enter_element, 1, 1,
3827     "can dig:", " ", NULL, NULL,        "element that can be digged/collected"
3828   },
3829   {
3830     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
3831     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3832     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
3833     &custom_element.move_leave_element, 1, 1,
3834     NULL, NULL, NULL, NULL,             "element that will be left behind"
3835   },
3836
3837   // ---------- element settings: advanced (custom elements) ------------------
3838
3839   // ---------- custom change target ------------------------------------------
3840
3841   {
3842     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3843     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3844     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
3845     &custom_element_change.target_element, 1, 1,
3846     NULL, "after/when:", NULL, NULL,    "new target element after change"
3847   },
3848
3849   // ---------- custom change content (extended change target) ----------------
3850
3851   {
3852     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
3853     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
3854     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
3855     &custom_element_change.target_content.e[0][0], 3, 3,
3856     NULL, NULL, NULL, NULL,             "new extended elements after change"
3857   },
3858
3859   // ---------- custom change trigger (element causing change) ----------------
3860
3861   {
3862     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
3863     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3864     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
3865     &custom_element_change.initial_trigger_element, 1, 1,
3866     NULL, NULL, NULL, NULL,             "other element triggering change"
3867   },
3868
3869   // ---------- custom change action (element used for action) ----------------
3870
3871   {
3872     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
3873     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3874     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
3875     &custom_element_change.action_element, 1, 1,
3876     NULL, NULL, NULL, NULL,             "element used as action parameter"
3877   },
3878
3879   // ---------- group element content -----------------------------------------
3880
3881   {
3882     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
3883     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3884     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
3885     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
3886     "content:", NULL, NULL, NULL,       NULL
3887   },
3888
3889   // ---------- random background (for random painting) -----------------------
3890
3891   {
3892     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
3893     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
3894     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
3895     &random_placement_background_element, 1, 1,
3896     NULL, NULL, NULL, NULL,             "random placement background"
3897   },
3898 };
3899
3900
3901 // ----------------------------------------------------------------------------
3902 // some internally used variables
3903 // ----------------------------------------------------------------------------
3904
3905 // maximal size of level editor drawing area
3906 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
3907
3908 // actual size of level editor drawing area
3909 static int ed_fieldx, ed_fieldy;
3910
3911 // actual position of level editor drawing area in level playfield
3912 static int level_xpos = -1, level_ypos = -1;
3913
3914 // actual tile size used to display playfield drawing area
3915 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
3916 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
3917
3918 #define IN_ED_FIELD(x, y)       IN_FIELD(x, y, ed_fieldx, ed_fieldy)
3919
3920 // drawing elements on the three mouse buttons
3921 static int new_element1 = EL_WALL;
3922 static int new_element2 = EL_EMPTY;
3923 static int new_element3 = EL_SAND;
3924
3925 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
3926 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
3927                                 (button) == 2 ? new_element2 : \
3928                                 (button) == 3 ? new_element3 : EL_EMPTY)
3929
3930 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
3931
3932 static int use_permanent_palette = TRUE;
3933
3934 #define PX              (use_permanent_palette ? DX : SX)
3935 #define PY              (use_permanent_palette ? DY : SY)
3936 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
3937 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
3938
3939 // forward declaration for internal use
3940 static void CopyBrushToCursor(int, int);
3941 static void DeleteBrushFromCursor(void);
3942 static void ModifyEditorCounterValue(int, int);
3943 static void ModifyEditorCounterLimits(int, int, int);
3944 static void ModifyEditorSelectboxValue(int, int);
3945 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
3946 static void ModifyEditorDrawingArea(int, int, int);
3947 static void ModifyEditorElementList(void);
3948 static void AdjustElementListScrollbar(void);
3949 static void RedrawDrawingElements(void);
3950 static void DrawDrawingWindowExt(boolean);
3951 static void DrawDrawingWindow(void);
3952 static void DrawLevelConfigWindow(void);
3953 static void DrawPropertiesWindow(void);
3954 static void DrawPaletteWindow(void);
3955 static void UpdateCustomElementGraphicGadgets(void);
3956 static boolean checkPropertiesConfig(int);
3957 static void SetAutomaticNumberOfGemsNeeded(void);
3958 static void ClearEditorGadgetInfoText(void);
3959 static void CopyLevelToUndoBuffer(int);
3960 static void HandleDrawingAreas(struct GadgetInfo *);
3961 static void HandleCounterButtons(struct GadgetInfo *);
3962 static void HandleTextInputGadgets(struct GadgetInfo *);
3963 static void HandleTextAreaGadgets(struct GadgetInfo *);
3964 static void HandleSelectboxGadgets(struct GadgetInfo *);
3965 static void HandleTextbuttonGadgets(struct GadgetInfo *);
3966 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
3967 static void HandleRadiobuttons(struct GadgetInfo *);
3968 static void HandleCheckbuttons(struct GadgetInfo *);
3969 static void HandleControlButtons(struct GadgetInfo *);
3970 static void HandleDrawingAreaInfo(struct GadgetInfo *);
3971 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
3972 static boolean AskToCopyAndModifyLevelTemplate(void);
3973 static boolean getDrawModeHiRes(void);
3974 static int getTabulatorBarWidth(void);
3975 static int getTabulatorBarHeight(void);
3976 static Pixel getTabulatorBarColor(void);
3977 static int numHiresTiles(int);
3978
3979 static int num_editor_gadgets = 0;      // dynamically determined
3980
3981 static struct GadgetInfo **level_editor_gadget = NULL;
3982 static int *right_gadget_border = NULL;
3983
3984 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
3985 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
3986 static boolean draw_with_brush = FALSE;
3987 static int properties_element = 0;
3988
3989 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3990 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3991 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3992 static int undo_buffer_position = 0;
3993 static int undo_buffer_steps = 0;
3994 static int redo_buffer_steps = 0;
3995
3996 static int edit_mode;
3997 static int edit_mode_levelconfig;
3998 static int edit_mode_properties;
3999
4000 static int element_shift = 0;
4001
4002 static int editor_el_players[] =
4003 {
4004   EL_PLAYER_1,
4005   EL_PLAYER_2,
4006   EL_PLAYER_3,
4007   EL_PLAYER_4
4008 };
4009 static int *editor_el_players_ptr = editor_el_players;
4010 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
4011
4012 static int editor_hl_boulderdash[] =
4013 {
4014   EL_INTERNAL_CASCADE_BD_ACTIVE,
4015   EL_CHAR('B'),
4016   EL_CHAR('D'),
4017   EL_EMPTY,
4018 };
4019
4020 static int editor_el_boulderdash[] =
4021 {
4022   EL_EMPTY,
4023   EL_SAND,
4024   EL_BD_ROCK,
4025   EL_BD_DIAMOND,
4026
4027   EL_STEELWALL,
4028   EL_BD_WALL,
4029   EL_BD_EXPANDABLE_WALL,
4030   EL_BD_MAGIC_WALL,
4031
4032   EL_BD_AMOEBA,
4033   EL_BD_BUTTERFLY_UP,
4034   EL_BD_FIREFLY_UP,
4035   EL_EXIT_CLOSED,
4036
4037   EL_BD_BUTTERFLY_LEFT,
4038   EL_BD_FIREFLY_LEFT,
4039   EL_BD_BUTTERFLY_RIGHT,
4040   EL_BD_FIREFLY_RIGHT,
4041
4042   EL_EMPTY,
4043   EL_BD_BUTTERFLY_DOWN,
4044   EL_BD_FIREFLY_DOWN,
4045   EL_EXIT_OPEN,
4046 };
4047 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4048 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4049 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4050 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4051
4052 static int editor_hl_emerald_mine[] =
4053 {
4054   EL_INTERNAL_CASCADE_EM_ACTIVE,
4055   EL_CHAR('E'),
4056   EL_CHAR('M'),
4057   EL_EMPTY,
4058 };
4059
4060 static int editor_el_emerald_mine[] =
4061 {
4062   EL_SAND,
4063   EL_ROCK,
4064   EL_QUICKSAND_EMPTY,
4065   EL_QUICKSAND_FULL,
4066
4067   EL_STEELWALL,
4068   EL_WALL,
4069   EL_WALL_SLIPPERY,
4070   EL_MAGIC_WALL,
4071
4072   EL_EMERALD,
4073   EL_DIAMOND,
4074   EL_NUT,
4075   EL_BOMB,
4076
4077   EL_EM_DYNAMITE,
4078   EL_EM_DYNAMITE_ACTIVE,
4079   EL_EM_EXIT_CLOSED,
4080   EL_EM_EXIT_OPEN,
4081
4082   EL_YAMYAM_UP,
4083   EL_BUG_UP,
4084   EL_SPACESHIP_UP,
4085   EL_ROBOT,
4086
4087   EL_BUG_LEFT,
4088   EL_SPACESHIP_LEFT,
4089   EL_BUG_RIGHT,
4090   EL_SPACESHIP_RIGHT,
4091
4092   EL_ROBOT_WHEEL,
4093   EL_BUG_DOWN,
4094   EL_SPACESHIP_DOWN,
4095   EL_INVISIBLE_WALL,
4096
4097   EL_ACID_POOL_TOPLEFT,
4098   EL_ACID,
4099   EL_ACID_POOL_TOPRIGHT,
4100   EL_AMOEBA_DROP,
4101
4102   EL_ACID_POOL_BOTTOMLEFT,
4103   EL_ACID_POOL_BOTTOM,
4104   EL_ACID_POOL_BOTTOMRIGHT,
4105   EL_AMOEBA_WET,
4106
4107   EL_EM_KEY_1,
4108   EL_EM_KEY_2,
4109   EL_EM_KEY_3,
4110   EL_EM_KEY_4,
4111
4112   EL_EM_GATE_1,
4113   EL_EM_GATE_2,
4114   EL_EM_GATE_3,
4115   EL_EM_GATE_4,
4116
4117   EL_EM_GATE_1_GRAY,
4118   EL_EM_GATE_2_GRAY,
4119   EL_EM_GATE_3_GRAY,
4120   EL_EM_GATE_4_GRAY,
4121 };
4122 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
4123 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
4124 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
4125 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
4126
4127 static int editor_hl_emerald_mine_club[] =
4128 {
4129   EL_INTERNAL_CASCADE_EMC_ACTIVE,
4130   EL_CHAR('E'),
4131   EL_CHAR('M'),
4132   EL_CHAR('C'),
4133 };
4134
4135 static int editor_el_emerald_mine_club[] =
4136 {
4137   EL_EMC_KEY_5,
4138   EL_EMC_KEY_6,
4139   EL_EMC_KEY_7,
4140   EL_EMC_KEY_8,
4141
4142   EL_EMC_GATE_5,
4143   EL_EMC_GATE_6,
4144   EL_EMC_GATE_7,
4145   EL_EMC_GATE_8,
4146
4147   EL_EMC_GATE_5_GRAY,
4148   EL_EMC_GATE_6_GRAY,
4149   EL_EMC_GATE_7_GRAY,
4150   EL_EMC_GATE_8_GRAY,
4151
4152   EL_EMC_STEELWALL_1,
4153   EL_EMC_STEELWALL_2,
4154   EL_EMC_STEELWALL_3,
4155   EL_EMC_STEELWALL_4,
4156
4157   EL_EMC_WALL_13,
4158   EL_EMC_WALL_14,
4159   EL_EMC_WALL_15,
4160   EL_EMC_WALL_16,
4161
4162   EL_EMC_WALL_SLIPPERY_1,
4163   EL_EMC_WALL_SLIPPERY_2,
4164   EL_EMC_WALL_SLIPPERY_3,
4165   EL_EMC_WALL_SLIPPERY_4,
4166
4167   EL_EMC_WALL_1,
4168   EL_EMC_WALL_2,
4169   EL_EMC_WALL_3,
4170   EL_EMC_WALL_4,
4171
4172   EL_EMC_WALL_5,
4173   EL_EMC_WALL_6,
4174   EL_EMC_WALL_7,
4175   EL_EMC_WALL_8,
4176
4177   EL_EMC_WALL_9,
4178   EL_EMC_WALL_10,
4179   EL_EMC_WALL_11,
4180   EL_EMC_WALL_12,
4181
4182   EL_EMC_GRASS,
4183   EL_EMC_FAKE_GRASS,
4184   EL_EMC_PLANT,
4185   EL_EMC_DRIPPER,
4186
4187   EL_EMC_MAGIC_BALL,
4188   EL_EMC_MAGIC_BALL_SWITCH,
4189   EL_EMC_LENSES,
4190   EL_EMC_MAGNIFIER,
4191
4192   EL_SPRING_LEFT,
4193   EL_SPRING,
4194   EL_SPRING_RIGHT,
4195   EL_EMC_SPRING_BUMPER,
4196
4197   EL_BALLOON,
4198   EL_YAMYAM_UP,
4199   EL_BALLOON_SWITCH_UP,
4200   EL_BALLOON_SWITCH_ANY,
4201
4202   EL_YAMYAM_LEFT,
4203   EL_BALLOON_SWITCH_LEFT,
4204   EL_YAMYAM_RIGHT,
4205   EL_BALLOON_SWITCH_RIGHT,
4206
4207   EL_EMC_ANDROID,
4208   EL_YAMYAM_DOWN,
4209   EL_BALLOON_SWITCH_DOWN,
4210   EL_BALLOON_SWITCH_NONE,
4211 };
4212 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
4213 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
4214 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
4215 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
4216
4217 static int editor_hl_rnd[] =
4218 {
4219   EL_INTERNAL_CASCADE_RND_ACTIVE,
4220   EL_CHAR('R'),
4221   EL_CHAR('N'),
4222   EL_CHAR('D'),
4223 };
4224
4225 static int editor_el_rnd[] =
4226 {
4227   EL_DYNAMITE,                  // RND
4228   EL_DYNAMITE_ACTIVE,           // RND
4229   EL_EMPTY,
4230   EL_EMPTY,
4231
4232   EL_KEY_1,
4233   EL_KEY_2,
4234   EL_KEY_3,
4235   EL_KEY_4,
4236
4237   EL_GATE_1,
4238   EL_GATE_2,
4239   EL_GATE_3,
4240   EL_GATE_4,
4241
4242   EL_GATE_1_GRAY,
4243   EL_GATE_2_GRAY,
4244   EL_GATE_3_GRAY,
4245   EL_GATE_4_GRAY,
4246
4247   EL_ARROW_LEFT,
4248   EL_ARROW_RIGHT,
4249   EL_ARROW_UP,
4250   EL_ARROW_DOWN,
4251
4252   EL_AMOEBA_DEAD,
4253   EL_AMOEBA_DRY,
4254   EL_AMOEBA_FULL,
4255   EL_GAME_OF_LIFE,
4256
4257   EL_EMERALD_YELLOW,
4258   EL_EMERALD_RED,
4259   EL_EMERALD_PURPLE,
4260   EL_BIOMAZE,
4261
4262   EL_WALL_EMERALD_YELLOW,
4263   EL_WALL_EMERALD_RED,
4264   EL_WALL_EMERALD_PURPLE,
4265   EL_WALL_BD_DIAMOND,
4266
4267   EL_SPEED_PILL,
4268   EL_PACMAN_UP,
4269   EL_TIME_ORB_FULL,
4270   EL_TIME_ORB_EMPTY,
4271
4272   EL_PACMAN_LEFT,
4273   EL_DARK_YAMYAM,
4274   EL_PACMAN_RIGHT,
4275   EL_YAMYAM,                    // RND
4276
4277   EL_BLACK_ORB,
4278   EL_PACMAN_DOWN,
4279   EL_LAMP,
4280   EL_LAMP_ACTIVE,
4281
4282   EL_DYNABOMB_INCREASE_NUMBER,
4283   EL_DYNABOMB_INCREASE_SIZE,
4284   EL_DYNABOMB_INCREASE_POWER,
4285   EL_STONEBLOCK,
4286
4287   EL_MOLE,
4288   EL_PENGUIN,
4289   EL_PIG,
4290   EL_DRAGON,
4291
4292   EL_BUG,
4293   EL_MOLE_UP,
4294   EL_BD_BUTTERFLY,
4295   EL_BD_FIREFLY,
4296
4297   EL_MOLE_LEFT,
4298   EL_SATELLITE,
4299   EL_MOLE_RIGHT,
4300   EL_PACMAN,
4301
4302   EL_SPACESHIP,
4303   EL_MOLE_DOWN,
4304   EL_INVISIBLE_STEELWALL,
4305   EL_INVISIBLE_WALL,
4306
4307   EL_EXPANDABLE_WALL,
4308   EL_EXPANDABLE_WALL_HORIZONTAL,
4309   EL_EXPANDABLE_WALL_VERTICAL,
4310   EL_EXPANDABLE_WALL_ANY,
4311 };
4312 static int *editor_hl_rnd_ptr = editor_hl_rnd;
4313 static int *editor_el_rnd_ptr = editor_el_rnd;
4314 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
4315 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
4316
4317 static int editor_hl_sokoban[] =
4318 {
4319   EL_INTERNAL_CASCADE_SB_ACTIVE,
4320   EL_CHAR('S'),
4321   EL_CHAR('B'),
4322   EL_EMPTY,
4323 };
4324
4325 static int editor_el_sokoban[] =
4326 {
4327   EL_SOKOBAN_OBJECT,
4328   EL_SOKOBAN_FIELD_EMPTY,
4329   EL_SOKOBAN_FIELD_FULL,
4330   EL_SOKOBAN_FIELD_PLAYER,
4331 };
4332 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
4333 static int *editor_el_sokoban_ptr = editor_el_sokoban;
4334 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
4335 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
4336
4337 static int editor_hl_supaplex[] =
4338 {
4339   EL_INTERNAL_CASCADE_SP_ACTIVE,
4340   EL_CHAR('S'),
4341   EL_CHAR('P'),
4342   EL_EMPTY,
4343 };
4344
4345 static int editor_el_supaplex[] =
4346 {
4347   EL_SP_MURPHY,
4348   EL_EMPTY,
4349   EL_SP_BASE,
4350   EL_SP_BUGGY_BASE,
4351
4352   EL_SP_INFOTRON,
4353   EL_SP_ZONK,
4354   EL_SP_SNIKSNAK,
4355   EL_SP_ELECTRON,
4356
4357   EL_SP_DISK_RED,
4358   EL_SP_DISK_ORANGE,
4359   EL_SP_DISK_YELLOW,
4360   EL_SP_TERMINAL,
4361
4362   EL_SP_EXIT_CLOSED,
4363   EL_SP_PORT_HORIZONTAL,
4364   EL_SP_PORT_VERTICAL,
4365   EL_SP_PORT_ANY,
4366
4367   EL_SP_PORT_LEFT,
4368   EL_SP_PORT_RIGHT,
4369   EL_SP_PORT_UP,
4370   EL_SP_PORT_DOWN,
4371
4372   EL_SP_GRAVITY_PORT_LEFT,
4373   EL_SP_GRAVITY_PORT_RIGHT,
4374   EL_SP_GRAVITY_PORT_UP,
4375   EL_SP_GRAVITY_PORT_DOWN,
4376
4377   EL_SP_GRAVITY_ON_PORT_LEFT,
4378   EL_SP_GRAVITY_ON_PORT_RIGHT,
4379   EL_SP_GRAVITY_ON_PORT_UP,
4380   EL_SP_GRAVITY_ON_PORT_DOWN,
4381
4382   EL_SP_GRAVITY_OFF_PORT_LEFT,
4383   EL_SP_GRAVITY_OFF_PORT_RIGHT,
4384   EL_SP_GRAVITY_OFF_PORT_UP,
4385   EL_SP_GRAVITY_OFF_PORT_DOWN,
4386
4387   EL_SP_HARDWARE_GRAY,
4388   EL_SP_HARDWARE_GREEN,
4389   EL_SP_HARDWARE_BLUE,
4390   EL_SP_HARDWARE_RED,
4391
4392   EL_SP_HARDWARE_BASE_1,
4393   EL_SP_HARDWARE_BASE_2,
4394   EL_SP_HARDWARE_BASE_3,
4395   EL_SP_HARDWARE_BASE_4,
4396
4397   EL_SP_HARDWARE_BASE_5,
4398   EL_SP_HARDWARE_BASE_6,
4399   EL_SP_HARDWARE_YELLOW,
4400   EL_SP_CHIP_TOP,
4401
4402   EL_SP_CHIP_SINGLE,
4403   EL_SP_CHIP_LEFT,
4404   EL_SP_CHIP_RIGHT,
4405   EL_SP_CHIP_BOTTOM,
4406 };
4407 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
4408 static int *editor_el_supaplex_ptr = editor_el_supaplex;
4409 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
4410 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
4411
4412 static int editor_hl_diamond_caves[] =
4413 {
4414   EL_INTERNAL_CASCADE_DC_ACTIVE,
4415   EL_CHAR('D'),
4416   EL_CHAR('C'),
4417   EL_CHAR('2'),
4418 };
4419
4420 static int editor_el_diamond_caves[] =
4421 {
4422   EL_EM_STEEL_EXIT_CLOSED,      // DC2
4423   EL_EM_STEEL_EXIT_OPEN,        // DC2
4424   EL_WALL_EMERALD,              // DC2
4425   EL_WALL_DIAMOND,              // DC2
4426
4427   EL_PEARL,
4428   EL_CRYSTAL,
4429   EL_WALL_PEARL,
4430   EL_WALL_CRYSTAL,
4431
4432   EL_CONVEYOR_BELT_1_LEFT,
4433   EL_CONVEYOR_BELT_1_MIDDLE,
4434   EL_CONVEYOR_BELT_1_RIGHT,
4435   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
4436
4437   EL_CONVEYOR_BELT_2_LEFT,
4438   EL_CONVEYOR_BELT_2_MIDDLE,
4439   EL_CONVEYOR_BELT_2_RIGHT,
4440   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
4441
4442   EL_CONVEYOR_BELT_3_LEFT,
4443   EL_CONVEYOR_BELT_3_MIDDLE,
4444   EL_CONVEYOR_BELT_3_RIGHT,
4445   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
4446
4447   EL_CONVEYOR_BELT_4_LEFT,
4448   EL_CONVEYOR_BELT_4_MIDDLE,
4449   EL_CONVEYOR_BELT_4_RIGHT,
4450   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
4451
4452   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
4453   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
4454   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
4455   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
4456
4457   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
4458   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
4459   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
4460   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
4461
4462   EL_TIMEGATE_CLOSED,
4463   EL_TIMEGATE_OPEN,
4464   EL_TIMEGATE_SWITCH,
4465   EL_DC_TIMEGATE_SWITCH,
4466
4467   EL_SWITCHGATE_CLOSED,
4468   EL_SWITCHGATE_OPEN,
4469   EL_SWITCHGATE_SWITCH_UP,
4470   EL_SWITCHGATE_SWITCH_DOWN,
4471
4472   EL_LIGHT_SWITCH,
4473   EL_LIGHT_SWITCH_ACTIVE,
4474   EL_DC_SWITCHGATE_SWITCH_UP,
4475   EL_DC_SWITCHGATE_SWITCH_DOWN,
4476
4477   EL_STEEL_EXIT_CLOSED,
4478   EL_STEEL_EXIT_OPEN,
4479   EL_STEELWALL_SLIPPERY,
4480   EL_INVISIBLE_SAND,
4481
4482   EL_QUICKSAND_FAST_EMPTY,
4483   EL_QUICKSAND_FAST_FULL,
4484   EL_LANDMINE,
4485   EL_DC_LANDMINE,
4486
4487   EL_SHIELD_NORMAL,
4488   EL_SHIELD_DEADLY,
4489   EL_EXTRA_TIME,
4490   EL_DC_MAGIC_WALL,
4491
4492   EL_ENVELOPE_1,
4493   EL_ENVELOPE_2,
4494   EL_ENVELOPE_3,
4495   EL_ENVELOPE_4,
4496
4497   EL_SIGN_RADIOACTIVITY,
4498   EL_SIGN_WHEELCHAIR,
4499   EL_SIGN_PARKING,
4500   EL_SIGN_NO_ENTRY,
4501
4502   EL_SIGN_GIVE_WAY,
4503   EL_SIGN_ENTRY_FORBIDDEN,
4504   EL_SIGN_EMERGENCY_EXIT,
4505   EL_SIGN_YIN_YANG,
4506
4507 #if 0
4508   EL_SIGN_SPERMS,
4509   EL_SIGN_BULLET,
4510   EL_SIGN_HEART,
4511   EL_SIGN_CROSS,
4512
4513   EL_SIGN_FRANKIE,
4514   EL_EMPTY,
4515   EL_EMPTY,
4516   EL_EMPTY,
4517
4518   EL_SPERMS,
4519   EL_BULLET,
4520   EL_HEART,
4521   EL_CROSS,
4522
4523   EL_FRANKIE,
4524   EL_EMPTY,
4525   EL_EMPTY,
4526   EL_EMPTY,
4527 #endif
4528
4529   EL_DC_STEELWALL_2_SINGLE,
4530   EL_DC_STEELWALL_2_TOP,
4531   EL_SIGN_EXCLAMATION,
4532   EL_SIGN_STOP,
4533
4534   EL_DC_STEELWALL_2_LEFT,
4535   EL_DC_STEELWALL_2_MIDDLE,
4536   EL_DC_STEELWALL_2_HORIZONTAL,
4537   EL_DC_STEELWALL_2_RIGHT,
4538
4539   EL_DC_STEELWALL_1_TOPLEFT,
4540   EL_DC_STEELWALL_2_VERTICAL,
4541   EL_DC_STEELWALL_1_TOPRIGHT,
4542   EL_DC_GATE_WHITE,
4543
4544   EL_DC_STEELWALL_1_VERTICAL,
4545   EL_DC_STEELWALL_2_BOTTOM,
4546   EL_DC_KEY_WHITE,
4547   EL_DC_GATE_WHITE_GRAY,
4548
4549   EL_DC_STEELWALL_1_BOTTOMLEFT,
4550   EL_DC_STEELWALL_1_HORIZONTAL,
4551   EL_DC_STEELWALL_1_BOTTOMRIGHT,
4552   EL_DC_GATE_FAKE_GRAY,
4553
4554   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
4555   EL_DC_STEELWALL_1_BOTTOM,
4556   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
4557   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
4558
4559   EL_DC_STEELWALL_1_RIGHT,
4560   EL_EMPTY,
4561   EL_DC_STEELWALL_1_LEFT,
4562   EL_EXPANDABLE_STEELWALL_VERTICAL,
4563
4564   EL_DC_STEELWALL_1_TOPRIGHT_2,
4565   EL_DC_STEELWALL_1_TOP,
4566   EL_DC_STEELWALL_1_TOPLEFT_2,
4567   EL_EXPANDABLE_STEELWALL_ANY,
4568 };
4569 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
4570 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
4571 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
4572 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
4573
4574 static int editor_hl_dx_boulderdash[] =
4575 {
4576   EL_INTERNAL_CASCADE_DX_ACTIVE,
4577   EL_CHAR('D'),
4578   EL_CHAR('X'),
4579   EL_EMPTY,
4580 };
4581
4582 static int editor_el_dx_boulderdash[] =
4583 {
4584   EL_EMPTY,
4585   EL_TUBE_RIGHT_DOWN,
4586   EL_TUBE_HORIZONTAL_DOWN,
4587   EL_TUBE_LEFT_DOWN,
4588
4589   EL_TUBE_HORIZONTAL,
4590   EL_TUBE_VERTICAL_RIGHT,
4591   EL_TUBE_ANY,
4592   EL_TUBE_VERTICAL_LEFT,
4593
4594   EL_TUBE_VERTICAL,
4595   EL_TUBE_RIGHT_UP,
4596   EL_TUBE_HORIZONTAL_UP,
4597   EL_TUBE_LEFT_UP,
4598
4599   EL_TRAP,
4600   EL_DX_SUPABOMB,
4601   EL_EMPTY,
4602   EL_EMPTY
4603 };
4604 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
4605 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
4606 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
4607 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
4608
4609 static int editor_hl_mirror_magic[] =
4610 {
4611   EL_INTERNAL_CASCADE_MM_ACTIVE,
4612   EL_CHAR('M'),
4613   EL_CHAR('M'),
4614   EL_EMPTY,
4615 };
4616
4617 static int editor_el_mirror_magic[] =
4618 {
4619   EL_MM_MCDUFFIN_RIGHT,
4620   EL_MM_MCDUFFIN_UP,
4621   EL_MM_MCDUFFIN_LEFT,
4622   EL_MM_MCDUFFIN_DOWN,
4623
4624   EL_MM_MIRROR_START,
4625   EL_MM_MIRROR_FIXED_START,
4626   EL_MM_POLARIZER_START,
4627   EL_MM_POLARIZER_CROSS_START,
4628
4629   EL_MM_TELEPORTER_RED_START,
4630   EL_MM_TELEPORTER_YELLOW_START,
4631   EL_MM_TELEPORTER_GREEN_START,
4632   EL_MM_TELEPORTER_BLUE_START,
4633
4634   EL_MM_PRISM,
4635   EL_MM_FUSE_ACTIVE,
4636   EL_MM_PACMAN_RIGHT,
4637   EL_MM_EXIT_CLOSED,
4638
4639   EL_MM_KETTLE,
4640   EL_MM_BOMB,
4641   EL_MM_KEY,
4642   EL_MM_FUEL_FULL,
4643
4644   EL_MM_LIGHTBULB,
4645   EL_MM_LIGHTBULB_ACTIVE,
4646   EL_MM_GRAY_BALL,
4647   EL_MM_LIGHTBALL,
4648
4649   EL_MM_STEEL_WALL,
4650   EL_MM_WOODEN_WALL,
4651   EL_MM_ICE_WALL,
4652   EL_MM_AMOEBA_WALL,
4653
4654   EL_MM_STEEL_LOCK,
4655   EL_MM_WOODEN_LOCK,
4656   EL_MM_STEEL_BLOCK,
4657   EL_MM_WOODEN_BLOCK,
4658
4659   EL_MM_STEEL_GRID_FIXED_1,
4660   EL_MM_STEEL_GRID_FIXED_2,
4661   EL_MM_STEEL_GRID_FIXED_3,
4662   EL_MM_STEEL_GRID_FIXED_4,
4663
4664   EL_MM_WOODEN_GRID_FIXED_1,
4665   EL_MM_WOODEN_GRID_FIXED_2,
4666   EL_MM_WOODEN_GRID_FIXED_3,
4667   EL_MM_WOODEN_GRID_FIXED_4,
4668
4669   EL_MM_ENVELOPE_1,
4670   EL_MM_ENVELOPE_2,
4671   EL_MM_ENVELOPE_3,
4672   EL_MM_ENVELOPE_4
4673 };
4674 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
4675 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
4676 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
4677 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
4678
4679 static int editor_hl_deflektor[] =
4680 {
4681   EL_INTERNAL_CASCADE_DF_ACTIVE,
4682   EL_CHAR('D'),
4683   EL_CHAR('F'),
4684   EL_EMPTY,
4685 };
4686
4687 static int editor_el_deflektor[] =
4688 {
4689   EL_DF_LASER_RIGHT,
4690   EL_DF_LASER_UP,
4691   EL_DF_LASER_LEFT,
4692   EL_DF_LASER_DOWN,
4693
4694   EL_DF_RECEIVER_RIGHT,
4695   EL_DF_RECEIVER_UP,
4696   EL_DF_RECEIVER_LEFT,
4697   EL_DF_RECEIVER_DOWN,
4698
4699   EL_DF_MIRROR_START,
4700   EL_DF_MIRROR_ROTATING_START,
4701   EL_DF_MIRROR_FIXED_START,
4702   EL_DF_CELL,
4703
4704   EL_DF_FIBRE_OPTIC_RED_1,
4705   EL_DF_FIBRE_OPTIC_YELLOW_1,
4706   EL_DF_FIBRE_OPTIC_GREEN_1,
4707   EL_DF_FIBRE_OPTIC_BLUE_1,
4708
4709   EL_DF_STEEL_GRID_FIXED_START,
4710   EL_DF_STEEL_GRID_ROTATING_START,
4711   EL_DF_WOODEN_GRID_FIXED_START,
4712   EL_DF_WOODEN_GRID_ROTATING_START,
4713
4714   EL_DF_STEEL_WALL,
4715   EL_DF_WOODEN_WALL,
4716   EL_DF_REFRACTOR,
4717   EL_DF_MINE,
4718
4719   EL_DF_SLOPE_1,
4720   EL_DF_SLOPE_2,
4721   EL_DF_SLOPE_3,
4722   EL_DF_SLOPE_4
4723 };
4724 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
4725 static int *editor_el_deflektor_ptr = editor_el_deflektor;
4726 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
4727 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
4728
4729 static int editor_hl_chars[] =
4730 {
4731   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
4732   EL_CHAR('T'),
4733   EL_CHAR('X'),
4734   EL_CHAR('T'),
4735 };
4736
4737 static int editor_el_chars[] =
4738 {
4739   EL_CHAR(' '),
4740   EL_CHAR('!'),
4741   EL_CHAR('"'),
4742   EL_CHAR('#'),
4743
4744   EL_CHAR('$'),
4745   EL_CHAR('%'),
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('-'),
4756   EL_CHAR('.'),
4757   EL_CHAR('/'),
4758
4759   EL_CHAR('0'),
4760   EL_CHAR('1'),
4761   EL_CHAR('2'),
4762   EL_CHAR('3'),
4763
4764   EL_CHAR('4'),
4765   EL_CHAR('5'),
4766   EL_CHAR('6'),
4767   EL_CHAR('7'),
4768
4769   EL_CHAR('8'),
4770   EL_CHAR('9'),
4771   EL_CHAR(':'),
4772   EL_CHAR(';'),
4773
4774   EL_CHAR('<'),
4775   EL_CHAR('='),
4776   EL_CHAR('>'),
4777   EL_CHAR('?'),
4778
4779   EL_CHAR('@'),
4780   EL_CHAR('A'),
4781   EL_CHAR('B'),
4782   EL_CHAR('C'),
4783
4784   EL_CHAR('D'),
4785   EL_CHAR('E'),
4786   EL_CHAR('F'),
4787   EL_CHAR('G'),
4788
4789   EL_CHAR('H'),
4790   EL_CHAR('I'),
4791   EL_CHAR('J'),
4792   EL_CHAR('K'),
4793
4794   EL_CHAR('L'),
4795   EL_CHAR('M'),
4796   EL_CHAR('N'),
4797   EL_CHAR('O'),
4798
4799   EL_CHAR('P'),
4800   EL_CHAR('Q'),
4801   EL_CHAR('R'),
4802   EL_CHAR('S'),
4803
4804   EL_CHAR('T'),
4805   EL_CHAR('U'),
4806   EL_CHAR('V'),
4807   EL_CHAR('W'),
4808
4809   EL_CHAR('X'),
4810   EL_CHAR('Y'),
4811   EL_CHAR('Z'),
4812   EL_CHAR('['),
4813
4814   EL_CHAR('\\'),
4815   EL_CHAR(']'),
4816   EL_CHAR('^'),
4817   EL_CHAR('_'),
4818
4819   EL_CHAR(CHAR_BYTE_COPYRIGHT),
4820   EL_CHAR(CHAR_BYTE_UMLAUT_A),
4821   EL_CHAR(CHAR_BYTE_UMLAUT_O),
4822   EL_CHAR(CHAR_BYTE_UMLAUT_U),
4823
4824   EL_CHAR(CHAR_BYTE_DEGREE),
4825   EL_CHAR(CHAR_BYTE_REGISTERED),
4826   EL_CHAR(FONT_ASCII_CURSOR),
4827   EL_CHAR(FONT_ASCII_BUTTON),
4828
4829   EL_CHAR(FONT_ASCII_UP),
4830   EL_CHAR(FONT_ASCII_DOWN),
4831   EL_CHAR(' '),
4832   EL_CHAR(' ')
4833 };
4834 static int *editor_hl_chars_ptr = editor_hl_chars;
4835 static int *editor_el_chars_ptr = editor_el_chars;
4836 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
4837 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
4838
4839 static int editor_hl_steel_chars[] =
4840 {
4841   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
4842   EL_STEEL_CHAR('T'),
4843   EL_STEEL_CHAR('X'),
4844   EL_STEEL_CHAR('T'),
4845 };
4846
4847 static int editor_el_steel_chars[] =
4848 {
4849   EL_STEEL_CHAR(' '),
4850   EL_STEEL_CHAR('!'),
4851   EL_STEEL_CHAR('"'),
4852   EL_STEEL_CHAR('#'),
4853
4854   EL_STEEL_CHAR('$'),
4855   EL_STEEL_CHAR('%'),
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('-'),
4866   EL_STEEL_CHAR('.'),
4867   EL_STEEL_CHAR('/'),
4868
4869   EL_STEEL_CHAR('0'),
4870   EL_STEEL_CHAR('1'),
4871   EL_STEEL_CHAR('2'),
4872   EL_STEEL_CHAR('3'),
4873
4874   EL_STEEL_CHAR('4'),
4875   EL_STEEL_CHAR('5'),
4876   EL_STEEL_CHAR('6'),
4877   EL_STEEL_CHAR('7'),
4878
4879   EL_STEEL_CHAR('8'),
4880   EL_STEEL_CHAR('9'),
4881   EL_STEEL_CHAR(':'),
4882   EL_STEEL_CHAR(';'),
4883
4884   EL_STEEL_CHAR('<'),
4885   EL_STEEL_CHAR('='),
4886   EL_STEEL_CHAR('>'),
4887   EL_STEEL_CHAR('?'),
4888
4889   EL_STEEL_CHAR('@'),
4890   EL_STEEL_CHAR('A'),
4891   EL_STEEL_CHAR('B'),
4892   EL_STEEL_CHAR('C'),
4893
4894   EL_STEEL_CHAR('D'),
4895   EL_STEEL_CHAR('E'),
4896   EL_STEEL_CHAR('F'),
4897   EL_STEEL_CHAR('G'),
4898
4899   EL_STEEL_CHAR('H'),
4900   EL_STEEL_CHAR('I'),
4901   EL_STEEL_CHAR('J'),
4902   EL_STEEL_CHAR('K'),
4903
4904   EL_STEEL_CHAR('L'),
4905   EL_STEEL_CHAR('M'),
4906   EL_STEEL_CHAR('N'),
4907   EL_STEEL_CHAR('O'),
4908
4909   EL_STEEL_CHAR('P'),
4910   EL_STEEL_CHAR('Q'),
4911   EL_STEEL_CHAR('R'),
4912   EL_STEEL_CHAR('S'),
4913
4914   EL_STEEL_CHAR('T'),
4915   EL_STEEL_CHAR('U'),
4916   EL_STEEL_CHAR('V'),
4917   EL_STEEL_CHAR('W'),
4918
4919   EL_STEEL_CHAR('X'),
4920   EL_STEEL_CHAR('Y'),
4921   EL_STEEL_CHAR('Z'),
4922   EL_STEEL_CHAR('['),
4923
4924   EL_STEEL_CHAR('\\'),
4925   EL_STEEL_CHAR(']'),
4926   EL_STEEL_CHAR('^'),
4927   EL_STEEL_CHAR('_'),
4928
4929   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
4930   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
4931   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
4932   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
4933
4934   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
4935   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
4936   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
4937   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
4938
4939   EL_STEEL_CHAR(FONT_ASCII_UP),
4940   EL_STEEL_CHAR(FONT_ASCII_DOWN),
4941   EL_STEEL_CHAR(' '),
4942   EL_STEEL_CHAR(' ')
4943 };
4944 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
4945 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
4946 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
4947 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
4948
4949 static int editor_hl_custom[] =
4950 {
4951   EL_INTERNAL_CASCADE_CE_ACTIVE,
4952   EL_CHAR('C'),
4953   EL_CHAR('E'),
4954   EL_EMPTY,
4955 };
4956
4957 static int editor_el_custom[] =
4958 {
4959   EL_CUSTOM_START + 0,
4960   EL_CUSTOM_START + 1,
4961   EL_CUSTOM_START + 2,
4962   EL_CUSTOM_START + 3,
4963
4964   EL_CUSTOM_START + 4,
4965   EL_CUSTOM_START + 5,
4966   EL_CUSTOM_START + 6,
4967   EL_CUSTOM_START + 7,
4968
4969   EL_CUSTOM_START + 8,
4970   EL_CUSTOM_START + 9,
4971   EL_CUSTOM_START + 10,
4972   EL_CUSTOM_START + 11,
4973
4974   EL_CUSTOM_START + 12,
4975   EL_CUSTOM_START + 13,
4976   EL_CUSTOM_START + 14,
4977   EL_CUSTOM_START + 15,
4978
4979   EL_CUSTOM_START + 16,
4980   EL_CUSTOM_START + 17,
4981   EL_CUSTOM_START + 18,
4982   EL_CUSTOM_START + 19,
4983
4984   EL_CUSTOM_START + 20,
4985   EL_CUSTOM_START + 21,
4986   EL_CUSTOM_START + 22,
4987   EL_CUSTOM_START + 23,
4988
4989   EL_CUSTOM_START + 24,
4990   EL_CUSTOM_START + 25,
4991   EL_CUSTOM_START + 26,
4992   EL_CUSTOM_START + 27,
4993
4994   EL_CUSTOM_START + 28,
4995   EL_CUSTOM_START + 29,
4996   EL_CUSTOM_START + 30,
4997   EL_CUSTOM_START + 31,
4998
4999   EL_CUSTOM_START + 32,
5000   EL_CUSTOM_START + 33,
5001   EL_CUSTOM_START + 34,
5002   EL_CUSTOM_START + 35,
5003
5004   EL_CUSTOM_START + 36,
5005   EL_CUSTOM_START + 37,
5006   EL_CUSTOM_START + 38,
5007   EL_CUSTOM_START + 39,
5008
5009   EL_CUSTOM_START + 40,
5010   EL_CUSTOM_START + 41,
5011   EL_CUSTOM_START + 42,
5012   EL_CUSTOM_START + 43,
5013
5014   EL_CUSTOM_START + 44,
5015   EL_CUSTOM_START + 45,
5016   EL_CUSTOM_START + 46,
5017   EL_CUSTOM_START + 47,
5018
5019   EL_CUSTOM_START + 48,
5020   EL_CUSTOM_START + 49,
5021   EL_CUSTOM_START + 50,
5022   EL_CUSTOM_START + 51,
5023
5024   EL_CUSTOM_START + 52,
5025   EL_CUSTOM_START + 53,
5026   EL_CUSTOM_START + 54,
5027   EL_CUSTOM_START + 55,
5028
5029   EL_CUSTOM_START + 56,
5030   EL_CUSTOM_START + 57,
5031   EL_CUSTOM_START + 58,
5032   EL_CUSTOM_START + 59,
5033
5034   EL_CUSTOM_START + 60,
5035   EL_CUSTOM_START + 61,
5036   EL_CUSTOM_START + 62,
5037   EL_CUSTOM_START + 63,
5038
5039   EL_CUSTOM_START + 64,
5040   EL_CUSTOM_START + 65,
5041   EL_CUSTOM_START + 66,
5042   EL_CUSTOM_START + 67,
5043
5044   EL_CUSTOM_START + 68,
5045   EL_CUSTOM_START + 69,
5046   EL_CUSTOM_START + 70,
5047   EL_CUSTOM_START + 71,
5048
5049   EL_CUSTOM_START + 72,
5050   EL_CUSTOM_START + 73,
5051   EL_CUSTOM_START + 74,
5052   EL_CUSTOM_START + 75,
5053
5054   EL_CUSTOM_START + 76,
5055   EL_CUSTOM_START + 77,
5056   EL_CUSTOM_START + 78,
5057   EL_CUSTOM_START + 79,
5058
5059   EL_CUSTOM_START + 80,
5060   EL_CUSTOM_START + 81,
5061   EL_CUSTOM_START + 82,
5062   EL_CUSTOM_START + 83,
5063
5064   EL_CUSTOM_START + 84,
5065   EL_CUSTOM_START + 85,
5066   EL_CUSTOM_START + 86,
5067   EL_CUSTOM_START + 87,
5068
5069   EL_CUSTOM_START + 88,
5070   EL_CUSTOM_START + 89,
5071   EL_CUSTOM_START + 90,
5072   EL_CUSTOM_START + 91,
5073
5074   EL_CUSTOM_START + 92,
5075   EL_CUSTOM_START + 93,
5076   EL_CUSTOM_START + 94,
5077   EL_CUSTOM_START + 95,
5078
5079   EL_CUSTOM_START + 96,
5080   EL_CUSTOM_START + 97,
5081   EL_CUSTOM_START + 98,
5082   EL_CUSTOM_START + 99,
5083
5084   EL_CUSTOM_START + 100,
5085   EL_CUSTOM_START + 101,
5086   EL_CUSTOM_START + 102,
5087   EL_CUSTOM_START + 103,
5088
5089   EL_CUSTOM_START + 104,
5090   EL_CUSTOM_START + 105,
5091   EL_CUSTOM_START + 106,
5092   EL_CUSTOM_START + 107,
5093
5094   EL_CUSTOM_START + 108,
5095   EL_CUSTOM_START + 109,
5096   EL_CUSTOM_START + 110,
5097   EL_CUSTOM_START + 111,
5098
5099   EL_CUSTOM_START + 112,
5100   EL_CUSTOM_START + 113,
5101   EL_CUSTOM_START + 114,
5102   EL_CUSTOM_START + 115,
5103
5104   EL_CUSTOM_START + 116,
5105   EL_CUSTOM_START + 117,
5106   EL_CUSTOM_START + 118,
5107   EL_CUSTOM_START + 119,
5108
5109   EL_CUSTOM_START + 120,
5110   EL_CUSTOM_START + 121,
5111   EL_CUSTOM_START + 122,
5112   EL_CUSTOM_START + 123,
5113
5114   EL_CUSTOM_START + 124,
5115   EL_CUSTOM_START + 125,
5116   EL_CUSTOM_START + 126,
5117   EL_CUSTOM_START + 127,
5118
5119   EL_CUSTOM_START + 128,
5120   EL_CUSTOM_START + 129,
5121   EL_CUSTOM_START + 130,
5122   EL_CUSTOM_START + 131,
5123
5124   EL_CUSTOM_START + 132,
5125   EL_CUSTOM_START + 133,
5126   EL_CUSTOM_START + 134,
5127   EL_CUSTOM_START + 135,
5128
5129   EL_CUSTOM_START + 136,
5130   EL_CUSTOM_START + 137,
5131   EL_CUSTOM_START + 138,
5132   EL_CUSTOM_START + 139,
5133
5134   EL_CUSTOM_START + 140,
5135   EL_CUSTOM_START + 141,
5136   EL_CUSTOM_START + 142,
5137   EL_CUSTOM_START + 143,
5138
5139   EL_CUSTOM_START + 144,
5140   EL_CUSTOM_START + 145,
5141   EL_CUSTOM_START + 146,
5142   EL_CUSTOM_START + 147,
5143
5144   EL_CUSTOM_START + 148,
5145   EL_CUSTOM_START + 149,
5146   EL_CUSTOM_START + 150,
5147   EL_CUSTOM_START + 151,
5148
5149   EL_CUSTOM_START + 152,
5150   EL_CUSTOM_START + 153,
5151   EL_CUSTOM_START + 154,
5152   EL_CUSTOM_START + 155,
5153
5154   EL_CUSTOM_START + 156,
5155   EL_CUSTOM_START + 157,
5156   EL_CUSTOM_START + 158,
5157   EL_CUSTOM_START + 159,
5158
5159   EL_CUSTOM_START + 160,
5160   EL_CUSTOM_START + 161,
5161   EL_CUSTOM_START + 162,
5162   EL_CUSTOM_START + 163,
5163
5164   EL_CUSTOM_START + 164,
5165   EL_CUSTOM_START + 165,
5166   EL_CUSTOM_START + 166,
5167   EL_CUSTOM_START + 167,
5168
5169   EL_CUSTOM_START + 168,
5170   EL_CUSTOM_START + 169,
5171   EL_CUSTOM_START + 170,
5172   EL_CUSTOM_START + 171,
5173
5174   EL_CUSTOM_START + 172,
5175   EL_CUSTOM_START + 173,
5176   EL_CUSTOM_START + 174,
5177   EL_CUSTOM_START + 175,
5178
5179   EL_CUSTOM_START + 176,
5180   EL_CUSTOM_START + 177,
5181   EL_CUSTOM_START + 178,
5182   EL_CUSTOM_START + 179,
5183
5184   EL_CUSTOM_START + 180,
5185   EL_CUSTOM_START + 181,
5186   EL_CUSTOM_START + 182,
5187   EL_CUSTOM_START + 183,
5188
5189   EL_CUSTOM_START + 184,
5190   EL_CUSTOM_START + 185,
5191   EL_CUSTOM_START + 186,
5192   EL_CUSTOM_START + 187,
5193
5194   EL_CUSTOM_START + 188,
5195   EL_CUSTOM_START + 189,
5196   EL_CUSTOM_START + 190,
5197   EL_CUSTOM_START + 191,
5198
5199   EL_CUSTOM_START + 192,
5200   EL_CUSTOM_START + 193,
5201   EL_CUSTOM_START + 194,
5202   EL_CUSTOM_START + 195,
5203
5204   EL_CUSTOM_START + 196,
5205   EL_CUSTOM_START + 197,
5206   EL_CUSTOM_START + 198,
5207   EL_CUSTOM_START + 199,
5208
5209   EL_CUSTOM_START + 200,
5210   EL_CUSTOM_START + 201,
5211   EL_CUSTOM_START + 202,
5212   EL_CUSTOM_START + 203,
5213
5214   EL_CUSTOM_START + 204,
5215   EL_CUSTOM_START + 205,
5216   EL_CUSTOM_START + 206,
5217   EL_CUSTOM_START + 207,
5218
5219   EL_CUSTOM_START + 208,
5220   EL_CUSTOM_START + 209,
5221   EL_CUSTOM_START + 210,
5222   EL_CUSTOM_START + 211,
5223
5224   EL_CUSTOM_START + 212,
5225   EL_CUSTOM_START + 213,
5226   EL_CUSTOM_START + 214,
5227   EL_CUSTOM_START + 215,
5228
5229   EL_CUSTOM_START + 216,
5230   EL_CUSTOM_START + 217,
5231   EL_CUSTOM_START + 218,
5232   EL_CUSTOM_START + 219,
5233
5234   EL_CUSTOM_START + 220,
5235   EL_CUSTOM_START + 221,
5236   EL_CUSTOM_START + 222,
5237   EL_CUSTOM_START + 223,
5238
5239   EL_CUSTOM_START + 224,
5240   EL_CUSTOM_START + 225,
5241   EL_CUSTOM_START + 226,
5242   EL_CUSTOM_START + 227,
5243
5244   EL_CUSTOM_START + 228,
5245   EL_CUSTOM_START + 229,
5246   EL_CUSTOM_START + 230,
5247   EL_CUSTOM_START + 231,
5248
5249   EL_CUSTOM_START + 232,
5250   EL_CUSTOM_START + 233,
5251   EL_CUSTOM_START + 234,
5252   EL_CUSTOM_START + 235,
5253
5254   EL_CUSTOM_START + 236,
5255   EL_CUSTOM_START + 237,
5256   EL_CUSTOM_START + 238,
5257   EL_CUSTOM_START + 239,
5258
5259   EL_CUSTOM_START + 240,
5260   EL_CUSTOM_START + 241,
5261   EL_CUSTOM_START + 242,
5262   EL_CUSTOM_START + 243,
5263
5264   EL_CUSTOM_START + 244,
5265   EL_CUSTOM_START + 245,
5266   EL_CUSTOM_START + 246,
5267   EL_CUSTOM_START + 247,
5268
5269   EL_CUSTOM_START + 248,
5270   EL_CUSTOM_START + 249,
5271   EL_CUSTOM_START + 250,
5272   EL_CUSTOM_START + 251,
5273
5274   EL_CUSTOM_START + 252,
5275   EL_CUSTOM_START + 253,
5276   EL_CUSTOM_START + 254,
5277   EL_CUSTOM_START + 255
5278 };
5279 static int *editor_hl_custom_ptr = editor_hl_custom;
5280 static int *editor_el_custom_ptr = editor_el_custom;
5281 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
5282 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
5283
5284 static int editor_hl_group[] =
5285 {
5286   EL_INTERNAL_CASCADE_GE_ACTIVE,
5287   EL_CHAR('G'),
5288   EL_CHAR('E'),
5289   EL_EMPTY,
5290 };
5291
5292 static int editor_el_group[] =
5293 {
5294   EL_GROUP_START + 0,
5295   EL_GROUP_START + 1,
5296   EL_GROUP_START + 2,
5297   EL_GROUP_START + 3,
5298
5299   EL_GROUP_START + 4,
5300   EL_GROUP_START + 5,
5301   EL_GROUP_START + 6,
5302   EL_GROUP_START + 7,
5303
5304   EL_GROUP_START + 8,
5305   EL_GROUP_START + 9,
5306   EL_GROUP_START + 10,
5307   EL_GROUP_START + 11,
5308
5309   EL_GROUP_START + 12,
5310   EL_GROUP_START + 13,
5311   EL_GROUP_START + 14,
5312   EL_GROUP_START + 15,
5313
5314   EL_GROUP_START + 16,
5315   EL_GROUP_START + 17,
5316   EL_GROUP_START + 18,
5317   EL_GROUP_START + 19,
5318
5319   EL_GROUP_START + 20,
5320   EL_GROUP_START + 21,
5321   EL_GROUP_START + 22,
5322   EL_GROUP_START + 23,
5323
5324   EL_GROUP_START + 24,
5325   EL_GROUP_START + 25,
5326   EL_GROUP_START + 26,
5327   EL_GROUP_START + 27,
5328
5329   EL_GROUP_START + 28,
5330   EL_GROUP_START + 29,
5331   EL_GROUP_START + 30,
5332   EL_GROUP_START + 31
5333 };
5334 static int *editor_hl_group_ptr = editor_hl_group;
5335 static int *editor_el_group_ptr = editor_el_group;
5336 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
5337 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
5338
5339 static int editor_hl_empty_space[] =
5340 {
5341   EL_INTERNAL_CASCADE_ES_ACTIVE,
5342   EL_CHAR('E'),
5343   EL_CHAR('S'),
5344   EL_EMPTY,
5345 };
5346
5347 static int editor_el_empty_space[] =
5348 {
5349   EL_EMPTY_SPACE_1,
5350   EL_EMPTY_SPACE_2,
5351   EL_EMPTY_SPACE_3,
5352   EL_EMPTY_SPACE_4,
5353
5354   EL_EMPTY_SPACE_5,
5355   EL_EMPTY_SPACE_6,
5356   EL_EMPTY_SPACE_7,
5357   EL_EMPTY_SPACE_8,
5358
5359   EL_EMPTY_SPACE_9,
5360   EL_EMPTY_SPACE_10,
5361   EL_EMPTY_SPACE_11,
5362   EL_EMPTY_SPACE_12,
5363
5364   EL_EMPTY_SPACE_13,
5365   EL_EMPTY_SPACE_14,
5366   EL_EMPTY_SPACE_15,
5367   EL_EMPTY_SPACE_16
5368 };
5369 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
5370 static int *editor_el_empty_space_ptr = editor_el_empty_space;
5371 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
5372 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
5373
5374 static int editor_hl_reference[] =
5375 {
5376   EL_INTERNAL_CASCADE_REF_ACTIVE,
5377   EL_CHAR('R'),
5378   EL_CHAR('E'),
5379   EL_CHAR('F')
5380 };
5381
5382 static int editor_el_reference[] =
5383 {
5384   EL_TRIGGER_PLAYER,
5385   EL_TRIGGER_ELEMENT,
5386   EL_TRIGGER_CE_VALUE,
5387   EL_TRIGGER_CE_SCORE,
5388
5389   EL_SELF,
5390   EL_ANY_ELEMENT,
5391   EL_CURRENT_CE_VALUE,
5392   EL_CURRENT_CE_SCORE,
5393
5394   EL_PREV_CE_8,
5395   EL_PREV_CE_7,
5396   EL_PREV_CE_6,
5397   EL_PREV_CE_5,
5398
5399   EL_PREV_CE_4,
5400   EL_PREV_CE_3,
5401   EL_PREV_CE_2,
5402   EL_PREV_CE_1,
5403
5404   EL_NEXT_CE_1,
5405   EL_NEXT_CE_2,
5406   EL_NEXT_CE_3,
5407   EL_NEXT_CE_4,
5408
5409   EL_NEXT_CE_5,
5410   EL_NEXT_CE_6,
5411   EL_NEXT_CE_7,
5412   EL_NEXT_CE_8,
5413 };
5414 static int *editor_hl_reference_ptr = editor_hl_reference;
5415 static int *editor_el_reference_ptr = editor_el_reference;
5416 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
5417 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
5418
5419 static int editor_hl_user_defined[] =
5420 {
5421   EL_INTERNAL_CASCADE_USER_ACTIVE,
5422   EL_CHAR('M'),
5423   EL_CHAR('Y'),
5424   EL_EMPTY,
5425 };
5426
5427 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
5428 static int *editor_el_user_defined_ptr = NULL;
5429 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
5430 static int num_editor_el_user_defined = 0;
5431
5432 static int editor_hl_dynamic[] =
5433 {
5434   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
5435   EL_CHAR('U'),
5436   EL_CHAR('S'),
5437   EL_CHAR('E'),
5438 };
5439
5440 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
5441 static int *editor_el_dynamic_ptr = NULL;
5442 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
5443 static int num_editor_el_dynamic = 0;
5444
5445 static int editor_hl_empty[] = { EL_EMPTY };
5446 static int *editor_el_empty = NULL;     // dynamically allocated
5447
5448 static int *editor_hl_empty_ptr = editor_hl_empty;
5449 static int *editor_el_empty_ptr = NULL;
5450 static int num_editor_hl_empty = 0;
5451 static int num_editor_el_empty = 0;     // dynamically determined, if needed
5452
5453 static boolean use_el_empty = FALSE;
5454
5455 static int *editor_elements = NULL;     // dynamically allocated
5456 static int num_editor_elements = 0;     // dynamically determined
5457
5458 static boolean setup_editor_cascade_never = FALSE;
5459
5460 static boolean setup_editor_el_players                  = TRUE;
5461 static boolean setup_editor_el_boulderdash              = TRUE;
5462 static boolean setup_editor_el_emerald_mine             = TRUE;
5463 static boolean setup_editor_el_emerald_mine_club        = TRUE;
5464 static boolean setup_editor_el_more                     = TRUE;
5465 static boolean setup_editor_el_sokoban                  = TRUE;
5466 static boolean setup_editor_el_supaplex                 = TRUE;
5467 static boolean setup_editor_el_diamond_caves            = TRUE;
5468 static boolean setup_editor_el_dx_boulderdash           = TRUE;
5469 static boolean setup_editor_el_mirror_magic             = TRUE;
5470 static boolean setup_editor_el_deflektor                = TRUE;
5471 static boolean setup_editor_el_chars                    = TRUE;
5472 static boolean setup_editor_el_steel_chars              = TRUE;
5473 static boolean setup_editor_el_custom                   = TRUE;
5474 static boolean setup_editor_el_user_defined             = TRUE;
5475 static boolean setup_editor_el_dynamic                  = TRUE;
5476
5477 static int editor_hl_unused[] = { EL_EMPTY };
5478 static int *editor_hl_unused_ptr = editor_hl_unused;
5479 static int num_editor_hl_unused = 0;
5480
5481 static struct
5482 {
5483   boolean *setup_value;
5484   boolean *setup_cascade_value;
5485
5486   int **headline_list;
5487   int *headline_list_size;
5488
5489   int **element_list;
5490   int *element_list_size;
5491
5492   boolean last_setup_value;
5493 }
5494 editor_elements_info[] =
5495 {
5496   {
5497     &setup_editor_el_players,
5498     &setup_editor_cascade_never,
5499     &editor_hl_unused_ptr,              &num_editor_hl_unused,
5500     &editor_el_players_ptr,             &num_editor_el_players
5501   },
5502   {
5503     &setup_editor_el_boulderdash,
5504     &setup.editor_cascade.el_bd,
5505     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
5506     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
5507   },
5508   {
5509     &setup_editor_el_emerald_mine,
5510     &setup.editor_cascade.el_em,
5511     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
5512     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
5513   },
5514   {
5515     &setup_editor_el_emerald_mine_club,
5516     &setup.editor_cascade.el_emc,
5517     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
5518     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
5519   },
5520   {
5521     &setup_editor_el_more,
5522     &setup.editor_cascade.el_rnd,
5523     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
5524     &editor_el_rnd_ptr,                 &num_editor_el_rnd
5525   },
5526   {
5527     &setup_editor_el_sokoban,
5528     &setup.editor_cascade.el_sb,
5529     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
5530     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
5531   },
5532   {
5533     &setup_editor_el_supaplex,
5534     &setup.editor_cascade.el_sp,
5535     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
5536     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
5537   },
5538   {
5539     &setup_editor_el_diamond_caves,
5540     &setup.editor_cascade.el_dc,
5541     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
5542     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
5543   },
5544   {
5545     &setup_editor_el_dx_boulderdash,
5546     &setup.editor_cascade.el_dx,
5547     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
5548     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
5549   },
5550   {
5551     &setup_editor_el_mirror_magic,
5552     &setup.editor_cascade.el_mm,
5553     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
5554     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
5555   },
5556   {
5557     &setup_editor_el_deflektor,
5558     &setup.editor_cascade.el_df,
5559     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
5560     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
5561   },
5562   {
5563     &setup_editor_el_chars,
5564     &setup.editor_cascade.el_chars,
5565     &editor_hl_chars_ptr,               &num_editor_hl_chars,
5566     &editor_el_chars_ptr,               &num_editor_el_chars
5567   },
5568   {
5569     &setup_editor_el_steel_chars,
5570     &setup.editor_cascade.el_steel_chars,
5571     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
5572     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
5573   },
5574   {
5575     &setup_editor_el_custom,
5576     &setup.editor_cascade.el_ce,
5577     &editor_hl_custom_ptr,              &num_editor_hl_custom,
5578     &editor_el_custom_ptr,              &num_editor_el_custom
5579   },
5580   {
5581     &setup_editor_el_custom,
5582     &setup.editor_cascade.el_ge,
5583     &editor_hl_group_ptr,               &num_editor_hl_group,
5584     &editor_el_group_ptr,               &num_editor_el_group
5585   },
5586   {
5587     &setup_editor_el_custom,
5588     &setup.editor_cascade.el_es,
5589     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
5590     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
5591   },
5592   {
5593     &setup_editor_el_custom,
5594     &setup.editor_cascade.el_ref,
5595     &editor_hl_reference_ptr,           &num_editor_hl_reference,
5596     &editor_el_reference_ptr,           &num_editor_el_reference
5597   },
5598   {
5599     &setup_editor_el_user_defined,
5600     &setup.editor_cascade.el_user,
5601     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
5602     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
5603   },
5604   {
5605     &setup_editor_el_dynamic,
5606     &setup.editor_cascade.el_dynamic,
5607     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
5608     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
5609   },
5610   {
5611     &use_el_empty,
5612     &use_el_empty,
5613     &editor_hl_empty_ptr,               &num_editor_hl_empty,
5614     &editor_el_empty_ptr,               &num_editor_el_empty,
5615   },
5616   {
5617     NULL,
5618     NULL,
5619     NULL,                               NULL,
5620     NULL,                               NULL
5621   }
5622 };
5623
5624 static struct XY xy_directions[] =
5625 {
5626   { -1,  0 },
5627   { +1,  0 },
5628   {  0, -1 },
5629   {  0, +1 }
5630 };
5631
5632
5633 // ----------------------------------------------------------------------------
5634 // functions
5635 // ----------------------------------------------------------------------------
5636
5637 static int getMaxInfoTextLength(void)
5638 {
5639   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
5640 }
5641
5642 static int getTextWidthForGadget(char *text)
5643 {
5644   if (text == NULL)
5645     return 0;
5646
5647   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
5648 }
5649
5650 static int getTextWidthForDrawingArea(char *text)
5651 {
5652   if (text == NULL)
5653     return 0;
5654
5655   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_TEXT_DISTANCE);
5656 }
5657
5658 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
5659 {
5660   return (gi->x + gi->width + getTextWidthForGadget(text));
5661 }
5662
5663 static char *getElementInfoText(int element)
5664 {
5665   char *info_text = NULL;
5666
5667   if (element < MAX_NUM_ELEMENTS)
5668   {
5669     if (strlen(element_info[element].description) > 0)
5670       info_text = element_info[element].description;
5671     else if (element_info[element].custom_description != NULL)
5672       info_text = element_info[element].custom_description;
5673     else if (element_info[element].editor_description != NULL)
5674       info_text = element_info[element].editor_description;
5675   }
5676
5677   if (info_text == NULL)
5678     info_text = INFOTEXT_UNKNOWN_ELEMENT;
5679
5680   return info_text;
5681 }
5682
5683 static char *getElementDescriptionFilenameExt(char *basename)
5684 {
5685   char *elements_subdir = ELEMENTS_DIRECTORY;
5686   static char *elements_subdir2 = NULL;
5687   static char *filename = NULL;
5688
5689   if (elements_subdir2 == NULL)
5690     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
5691
5692   checked_free(filename);
5693
5694   // 1st try: look for element description in current level set directory
5695   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
5696   if (fileExists(filename))
5697     return filename;
5698
5699   free(filename);
5700
5701   // 2nd try: look for element description in the game's base directory
5702   filename = getPath3(options.docs_directory, elements_subdir, basename);
5703   if (fileExists(filename))
5704     return filename;
5705
5706   return NULL;
5707 }
5708
5709 static char *getElementDescriptionFilename(int element)
5710 {
5711   char basename[MAX_FILENAME_LEN];
5712   char *filename;
5713
5714   // 1st try: look for element description file for exactly this element
5715   sprintf(basename, "%s.txt", element_info[element].token_name);
5716   filename = getElementDescriptionFilenameExt(basename);
5717   if (filename != NULL)
5718     return filename;
5719
5720   // 2nd try: look for element description file for this element's class
5721   sprintf(basename, "%s.txt", element_info[element].class_name);
5722   filename = getElementDescriptionFilenameExt(basename);
5723   if (filename != NULL)
5724     return filename;
5725
5726   // 3rd try: look for generic fallback text file for any element
5727   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
5728   if (filename != NULL)
5729     return filename;
5730
5731   return NULL;
5732 }
5733
5734 static boolean suppressBorderElement(void)
5735 {
5736   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
5737           lev_fieldx <= MAX_ED_FIELDX &&
5738           lev_fieldy <= MAX_ED_FIELDY);
5739 }
5740
5741 static void InitDynamicEditorElementList(int **elements, int *num_elements)
5742 {
5743   boolean element_found[NUM_FILE_ELEMENTS];
5744   int i, x, y;
5745
5746   // initialize list of used elements to "not used"
5747   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5748     element_found[i] = FALSE;
5749
5750   // find all elements used in current level
5751   for (y = 0; y < lev_fieldy; y++)
5752   {
5753     for (x = 0; x < lev_fieldx; x++)
5754     {
5755       if (Tile[x][y] >= NUM_FILE_ELEMENTS)      // should never happen
5756         continue;
5757
5758       if (IS_MM_WALL(Tile[x][y]))
5759         element_found[map_mm_wall_element(Tile[x][y])] = TRUE;
5760       else
5761         element_found[Tile[x][y]] = TRUE;
5762     }
5763   }
5764
5765   *num_elements = 0;
5766
5767   // count number of elements used in current level
5768   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5769     if (element_found[i])
5770       (*num_elements)++;
5771
5772   // add space for up to 3 more elements for padding that may be needed
5773   *num_elements += 3;
5774
5775   // free memory for old list of elements, if needed
5776   checked_free(*elements);
5777
5778   // allocate memory for new list of elements
5779   *elements = checked_malloc(*num_elements * sizeof(int));
5780
5781   *num_elements = 0;
5782
5783   // add all elements used in current level (non-custom/group/empty elements)
5784   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5785     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) ||
5786                               IS_GROUP_ELEMENT(i) ||
5787                               IS_EMPTY_ELEMENT(i)))
5788       (*elements)[(*num_elements)++] = i;
5789
5790   // add all elements used in current level (custom/group/empty elements)
5791   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5792     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) ||
5793                              IS_GROUP_ELEMENT(i) ||
5794                              IS_EMPTY_ELEMENT(i)))
5795       (*elements)[(*num_elements)++] = i;
5796
5797   while (*num_elements % 4)     // pad with empty elements, if needed
5798     (*elements)[(*num_elements)++] = EL_EMPTY;
5799 }
5800
5801 static void ReinitializeElementList_EnableSections(void)
5802 {
5803   // default: enable all element sections
5804
5805   setup_editor_el_players               = TRUE;
5806   setup_editor_el_boulderdash           = TRUE;
5807   setup_editor_el_emerald_mine          = TRUE;
5808   setup_editor_el_emerald_mine_club     = TRUE;
5809   setup_editor_el_more                  = TRUE;
5810   setup_editor_el_sokoban               = TRUE;
5811   setup_editor_el_supaplex              = TRUE;
5812   setup_editor_el_diamond_caves         = TRUE;
5813   setup_editor_el_dx_boulderdash        = TRUE;
5814   setup_editor_el_mirror_magic          = TRUE;
5815   setup_editor_el_deflektor             = TRUE;
5816   setup_editor_el_chars                 = TRUE;
5817   setup_editor_el_steel_chars           = TRUE;
5818
5819   setup_editor_el_custom                = TRUE;
5820   setup_editor_el_user_defined          = TRUE;
5821   setup_editor_el_dynamic               = TRUE;
5822
5823   // now disable all element sections not to be displayed
5824
5825   if (!setup.editor.el_classic)
5826   {
5827     setup_editor_el_players             = FALSE;
5828     setup_editor_el_boulderdash         = FALSE;
5829     setup_editor_el_emerald_mine        = FALSE;
5830     setup_editor_el_emerald_mine_club   = FALSE;
5831     setup_editor_el_more                = FALSE;
5832     setup_editor_el_sokoban             = FALSE;
5833     setup_editor_el_supaplex            = FALSE;
5834     setup_editor_el_diamond_caves       = FALSE;
5835     setup_editor_el_dx_boulderdash      = FALSE;
5836     setup_editor_el_mirror_magic        = FALSE;
5837     setup_editor_el_deflektor           = FALSE;
5838     setup_editor_el_chars               = FALSE;
5839     setup_editor_el_steel_chars         = FALSE;
5840   }
5841
5842   if (!setup.editor.el_custom)
5843   {
5844     setup_editor_el_custom              = FALSE;
5845   }
5846
5847   if (!setup.editor.el_user_defined)
5848   {
5849     setup_editor_el_user_defined        = FALSE;
5850   }
5851
5852   if (!setup.editor.el_dynamic)
5853   {
5854     setup_editor_el_dynamic             = FALSE;
5855   }
5856
5857   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
5858   {
5859     setup_editor_el_mirror_magic        = FALSE;
5860     setup_editor_el_deflektor           = FALSE;
5861   }
5862   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
5863   {
5864     setup_editor_el_boulderdash         = FALSE;
5865     setup_editor_el_more                = FALSE;
5866     setup_editor_el_sokoban             = FALSE;
5867     setup_editor_el_supaplex            = FALSE;
5868     setup_editor_el_diamond_caves       = FALSE;
5869     setup_editor_el_dx_boulderdash      = FALSE;
5870     setup_editor_el_mirror_magic        = FALSE;
5871     setup_editor_el_deflektor           = FALSE;
5872     setup_editor_el_steel_chars         = FALSE;
5873
5874     setup_editor_el_custom              = FALSE;
5875   }
5876   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
5877   {
5878     setup_editor_el_players             = FALSE;
5879     setup_editor_el_boulderdash         = FALSE;
5880     setup_editor_el_emerald_mine        = FALSE;
5881     setup_editor_el_emerald_mine_club   = FALSE;
5882     setup_editor_el_more                = FALSE;
5883     setup_editor_el_sokoban             = FALSE;
5884     setup_editor_el_diamond_caves       = FALSE;
5885     setup_editor_el_dx_boulderdash      = FALSE;
5886     setup_editor_el_mirror_magic        = FALSE;
5887     setup_editor_el_deflektor           = FALSE;
5888     setup_editor_el_chars               = FALSE;
5889     setup_editor_el_steel_chars         = FALSE;
5890
5891     setup_editor_el_custom              = FALSE;
5892   }
5893   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
5894   {
5895     setup_editor_el_players             = FALSE;
5896     setup_editor_el_boulderdash         = FALSE;
5897     setup_editor_el_emerald_mine        = FALSE;
5898     setup_editor_el_emerald_mine_club   = FALSE;
5899     setup_editor_el_more                = FALSE;
5900     setup_editor_el_sokoban             = FALSE;
5901     setup_editor_el_supaplex            = FALSE;
5902     setup_editor_el_diamond_caves       = FALSE;
5903     setup_editor_el_dx_boulderdash      = FALSE;
5904     setup_editor_el_steel_chars         = FALSE;
5905
5906     setup_editor_el_custom              = FALSE;
5907   }
5908 }
5909
5910 static void ReinitializeElementList(void)
5911 {
5912   static boolean initialization_needed = TRUE;
5913   int pos = 0;
5914   int i, j;
5915
5916   ReinitializeElementList_EnableSections();
5917
5918   if (initialization_needed)
5919   {
5920     LoadSetup_EditorCascade();          // load last editor cascade state
5921
5922     // initialize editor cascade element from saved cascade state
5923     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5924     {
5925       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
5926       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
5927
5928       if (IS_EDITOR_CASCADE(*cascade_element))
5929         *cascade_element =
5930           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
5931            EL_CASCADE_INACTIVE(*cascade_element));
5932     }
5933
5934     initialization_needed = FALSE;
5935   }
5936
5937   checked_free(editor_elements);
5938
5939   // reload optional user defined element list for each invocation of editor
5940   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
5941                                    &num_editor_el_user_defined);
5942
5943   // initialize dynamic level element list for each invocation of editor
5944   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
5945                                &num_editor_el_dynamic);
5946
5947   // initialize list of empty elements (used for padding, if needed)
5948   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
5949     editor_el_empty[i] = EL_EMPTY;
5950
5951   // do some sanity checks for each element from element list
5952   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5953   {
5954     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
5955     {
5956       int element = (*editor_elements_info[i].element_list)[j];
5957
5958       if (element >= NUM_FILE_ELEMENTS)
5959         Warn("editor element %d is runtime element", element);
5960
5961       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
5962         Warn("no element description text for element %d", element);
5963     }
5964   }
5965
5966   num_editor_elements = 0;
5967   use_el_empty = FALSE;
5968
5969   // determine size of element list
5970   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5971   {
5972     if (*editor_elements_info[i].setup_value)
5973     {
5974       boolean found_inactive_cascade = FALSE;
5975
5976       if (setup.editor.el_headlines)
5977       {
5978         // required for correct padding of palette headline buttons
5979         if (*editor_elements_info[i].headline_list_size > 0)
5980           num_editor_elements += ED_ELEMENTLIST_COLS;
5981
5982         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
5983         {
5984           int element = (*editor_elements_info[i].headline_list)[j];
5985
5986           if (IS_EDITOR_CASCADE_INACTIVE(element))
5987             found_inactive_cascade = TRUE;
5988         }
5989       }
5990
5991       if (found_inactive_cascade)
5992         continue;
5993
5994       // required for correct padding of palette element buttons
5995       int element_list_size = *editor_elements_info[i].element_list_size;
5996       int element_rows =
5997         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
5998       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
5999
6000       num_editor_elements += element_buttons;
6001     }
6002   }
6003
6004   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
6005   {
6006     // offer at least as many elements as element buttons exist
6007     use_el_empty = TRUE;
6008     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
6009
6010     num_editor_elements += num_editor_el_empty;
6011   }
6012   else
6013   {
6014     num_editor_el_empty = 0;
6015   }
6016
6017   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
6018
6019   // fill element list
6020   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6021   {
6022     boolean found_inactive_cascade = FALSE;
6023
6024     if (*editor_elements_info[i].setup_value)
6025     {
6026       if (setup.editor.el_headlines)
6027       {
6028         // required for correct padding of palette headline buttons
6029         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
6030                              ED_ELEMENTLIST_COLS : 0);
6031
6032         for (j = 0; j < headline_size; j++)
6033         {
6034           // use empty elements for padding of palette headline buttons
6035           int element = (j < *editor_elements_info[i].headline_list_size ?
6036                          (*editor_elements_info[i].headline_list)[j] :
6037                          editor_el_empty[0]);
6038
6039           editor_elements[pos++] = element;
6040
6041           if (IS_EDITOR_CASCADE_INACTIVE(element))
6042             found_inactive_cascade = TRUE;
6043         }
6044       }
6045
6046       if (found_inactive_cascade)
6047         continue;
6048
6049       // required for correct padding of palette element buttons
6050       int element_list_size = *editor_elements_info[i].element_list_size;
6051       int element_rows =
6052         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6053       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6054
6055       // copy all elements from element list
6056       for (j = 0; j < element_list_size; j++)
6057         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
6058
6059       // use empty elements for padding of palette element buttons
6060       for (j = 0; j < element_buttons - element_list_size; j++)
6061         editor_elements[pos++] = editor_el_empty[0];
6062     }
6063   }
6064
6065   // (this function is also called before editor gadgets are initialized!)
6066   AdjustElementListScrollbar();
6067 }
6068
6069 void PrintEditorElementList(void)
6070 {
6071   boolean *stop = &setup_editor_el_user_defined;
6072   int i, j;
6073
6074   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
6075   {
6076     int cascade_element = (*editor_elements_info[i].headline_list)[0];
6077
6078     if (IS_EDITOR_CASCADE(cascade_element))
6079     {
6080       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
6081       char *headline = element_info[cascade_element_show].editor_description;
6082
6083       PrintLineWithPrefix("# ", "-", 77);
6084       Print("# %s\n", headline);
6085       PrintLineWithPrefix("# ", "-", 77);
6086     }
6087
6088     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6089     {
6090       int element = (*editor_elements_info[i].headline_list)[j];
6091
6092       if (IS_EDITOR_CASCADE(element))
6093         element = EL_CHAR_MINUS;
6094
6095       Print("# %s\n", element_info[element].token_name);
6096     }
6097
6098     if (j > 0)
6099       Print("#\n");
6100
6101     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6102     {
6103       int element = (*editor_elements_info[i].element_list)[j];
6104
6105       Print("# %s\n", element_info[element].token_name);
6106     }
6107
6108     if (j > 0)
6109       Print("#\n");
6110   }
6111 }
6112
6113 static void ReinitializeElementListButtons(void)
6114 {
6115   static boolean last_setup_value_headlines = FALSE;
6116   static boolean initialization_needed = TRUE;
6117   int i;
6118
6119   if (!initialization_needed)   // check if editor element setup has changed
6120   {
6121     if (last_setup_value_headlines != setup.editor.el_headlines)
6122       initialization_needed = TRUE;
6123
6124     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6125       if (editor_elements_info[i].last_setup_value !=
6126           *editor_elements_info[i].setup_value)
6127         initialization_needed = TRUE;
6128   }
6129
6130   if (!initialization_needed)
6131     return;
6132
6133   FreeLevelEditorGadgets();
6134   CreateLevelEditorGadgets();
6135
6136   // store current setup values for next invocation of this function
6137   last_setup_value_headlines = setup.editor.el_headlines;
6138   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6139     editor_elements_info[i].last_setup_value =
6140       *editor_elements_info[i].setup_value;
6141
6142   initialization_needed = FALSE;
6143 }
6144
6145 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
6146                               boolean input)
6147 {
6148   int border_graphic =
6149     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
6150   struct GraphicInfo *g = &graphic_info[border_graphic];
6151   Bitmap *src_bitmap = g->bitmap;
6152   int src_x = g->src_x;
6153   int src_y = g->src_y;
6154   int border_size = g->border_size;
6155   int border_xpos = g->width  - border_size;
6156   int border_ypos = g->height - border_size;
6157   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6158   int i;
6159
6160   BlitBitmap(src_bitmap, drawto, src_x, src_y,
6161              border_size, border_size,
6162              dest_x - border_size, dest_y - border_size);
6163   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
6164              border_size, border_size,
6165              dest_x + width, dest_y - border_size);
6166   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
6167              border_size, border_size,
6168              dest_x - border_size, dest_y + height);
6169   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
6170              border_size, border_size,
6171              dest_x + width, dest_y + height);
6172
6173   for (i = 0; i < width / tilesize; i++)
6174   {
6175     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
6176                tilesize, border_size,
6177                dest_x + i * tilesize, dest_y - border_size);
6178     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
6179                tilesize, border_size,
6180                dest_x + i * tilesize, dest_y + height);
6181   }
6182
6183   for (i = 0; i < height / tilesize; i++)
6184   {
6185     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
6186                border_size, tilesize,
6187                dest_x - border_size, dest_y + i * tilesize);
6188     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
6189                border_size, tilesize,
6190                dest_x + width, dest_y + i * tilesize);
6191   }
6192
6193   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
6194 }
6195
6196 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
6197 {
6198   int xsize_tile = MAX(ed_tilesize, xsize);
6199   int ysize_tile = MAX(ed_tilesize, ysize);
6200   int xsize_full = xsize + 1;
6201   int ysize_full = ysize + 1;
6202   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
6203   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
6204   Pixel line_color = getTabulatorBarColor();
6205
6206   if (line_color == BLACK_PIXEL)                // black => transparent
6207     return;
6208
6209   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
6210   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
6211   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
6212 }
6213
6214 static void DrawEditorLevelBorderLinesIfNeeded(void)
6215 {
6216   int xsize = lev_fieldx * ed_tilesize;
6217   int ysize = lev_fieldy * ed_tilesize;
6218   int line_size = getTabulatorBarHeight();
6219
6220   if (!suppressBorderElement())
6221     return;
6222
6223   // draw little border line around editable level playfield
6224
6225   if (xsize < SXSIZE)
6226     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
6227
6228   if (ysize < SYSIZE)
6229     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
6230
6231   if (xsize < SXSIZE && ysize < SYSIZE)
6232     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
6233 }
6234
6235 static void DrawEditorElement(int x, int y, int element)
6236 {
6237   DrawSizedElement(x, y, element, ed_tilesize);
6238 }
6239
6240 static void DrawEditorElementThruMask(int x, int y, int element)
6241 {
6242   DrawSizedElementThruMask(x, y, element, ed_tilesize);
6243 }
6244
6245 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
6246 {
6247   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
6248 }
6249
6250 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
6251 {
6252   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
6253   DrawEditorLevelBorderLinesIfNeeded();
6254 }
6255
6256 static void DrawDrawingArea(int id)
6257 {
6258   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
6259   int x, y;
6260
6261   int *value = drawingarea_info[id].value;
6262   int area_xsize = drawingarea_info[id].area_xsize;
6263   int area_ysize = drawingarea_info[id].area_ysize;
6264   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6265
6266   for (x = 0; x < area_xsize; x++)
6267     for (y = 0; y < area_ysize; y++)
6268       DrawSizedGraphicExt(drawto,
6269                           gi->x + x * tilesize,
6270                           gi->y + y * tilesize,
6271                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
6272 }
6273
6274 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
6275 {
6276   int x, y;
6277   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
6278   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
6279
6280   BlitBitmap(drawto, drawto,
6281              SX + (dx == -1 ? ed_tilesize : 0),
6282              SY + (dy == -1 ? ed_tilesize : 0),
6283              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
6284              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
6285              SX + (dx == +1 ? ed_tilesize : 0),
6286              SY + (dy == +1 ? ed_tilesize : 0));
6287
6288   if (dx)
6289   {
6290     x = (dx == 1 ? 0 : ed_fieldx - 1);
6291     for (y = 0; y < ed_fieldy; y++)
6292       DrawEditorElementOrWall(x, y, from_x, from_y);
6293   }
6294   else if (dy)
6295   {
6296     y = (dy == 1 ? 0 : ed_fieldy - 1);
6297     for (x = 0; x < ed_fieldx; x++)
6298       DrawEditorElementOrWall(x, y, from_x, from_y);
6299   }
6300
6301   redraw_mask |= REDRAW_FIELD;
6302   BackToFront();
6303 }
6304
6305 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
6306                                    int *x, int *y)
6307 {
6308   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
6309 }
6310
6311 static void CreateControlButtons(void)
6312 {
6313   struct GadgetInfo *gi;
6314   int i;
6315
6316   // create toolbox buttons
6317   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
6318   {
6319     int id = controlbutton_info[i].gadget_id;
6320     int type = controlbutton_info[i].gadget_type;
6321     int graphic = controlbutton_info[i].graphic;
6322     struct XYTileSize *pos = controlbutton_info[i].pos;
6323     struct GraphicInfo *gd = &graphic_info[graphic];
6324     Bitmap *deco_bitmap = NULL;
6325     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
6326     int tile_size = 0, deco_shift = 0;
6327     boolean deco_masked = FALSE;
6328     int gd_x1 = gd->src_x;
6329     int gd_y1 = gd->src_y;
6330     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6331     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6332     int gd_x1a = gd->src_x + gd->active_xoffset;
6333     int gd_y1a = gd->src_y + gd->active_yoffset;
6334     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
6335     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
6336     int x = pos->x;
6337     int y = pos->y;
6338     unsigned int event_mask;
6339     int radio_button_nr = RADIO_NR_NONE;
6340     boolean checked = FALSE;
6341
6342     if (type == GD_TYPE_RADIO_BUTTON)
6343     {
6344       event_mask = GD_EVENT_PRESSED;
6345       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
6346
6347       if (id == drawing_function)
6348         checked = TRUE;
6349     }
6350     else
6351     {
6352       if (id == GADGET_ID_WRAP_LEFT ||
6353           id == GADGET_ID_WRAP_RIGHT ||
6354           id == GADGET_ID_WRAP_UP ||
6355           id == GADGET_ID_WRAP_DOWN)
6356         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6357       else
6358         event_mask = GD_EVENT_RELEASED;
6359     }
6360
6361     if (id == GADGET_ID_PROPERTIES ||
6362         id == GADGET_ID_PALETTE)
6363     {
6364       x += DX;
6365       y += DY;
6366     }
6367     else if (id == GADGET_ID_ELEMENT_LEFT ||
6368              id == GADGET_ID_ELEMENT_MIDDLE ||
6369              id == GADGET_ID_ELEMENT_RIGHT)
6370     {
6371       x += DX;
6372       y += DY;
6373
6374       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
6375                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
6376                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
6377
6378       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
6379                                    editor.button.element_left.tile_size :
6380                                    id == GADGET_ID_ELEMENT_MIDDLE ?
6381                                    editor.button.element_middle.tile_size :
6382                                    id == GADGET_ID_ELEMENT_RIGHT ?
6383                                    editor.button.element_right.tile_size : 0);
6384
6385       // make sure that decoration does not overlap gadget border
6386       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
6387
6388       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
6389
6390       deco_xpos = (gd->width  - tile_size) / 2;
6391       deco_ypos = (gd->height - tile_size) / 2;
6392       deco_shift = 1;
6393       deco_masked = gd->draw_masked;
6394     }
6395     else
6396     {
6397       x += EX;
6398       y += EY;
6399     }
6400
6401     gi = CreateGadget(GDI_CUSTOM_ID, id,
6402                       GDI_CUSTOM_TYPE_ID, i,
6403                       GDI_IMAGE_ID, graphic,
6404                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
6405                       GDI_X, x,
6406                       GDI_Y, y,
6407                       GDI_WIDTH, gd->width,
6408                       GDI_HEIGHT, gd->height,
6409                       GDI_TYPE, type,
6410                       GDI_STATE, GD_BUTTON_UNPRESSED,
6411                       GDI_RADIO_NR, radio_button_nr,
6412                       GDI_CHECKED, checked,
6413                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6414                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6415                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
6416                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
6417                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
6418                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
6419                       GDI_DECORATION_SIZE, tile_size, tile_size,
6420                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
6421                       GDI_DECORATION_MASKED, deco_masked,
6422                       GDI_EVENT_MASK, event_mask,
6423                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6424                       GDI_CALLBACK_ACTION, HandleControlButtons,
6425                       GDI_END);
6426
6427     if (gi == NULL)
6428       Fail("cannot create gadget");
6429
6430     level_editor_gadget[id] = gi;
6431   }
6432
6433   // these values are not constant, but can change at runtime
6434   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
6435   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
6436   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
6437   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
6438   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
6439   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
6440   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
6441   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
6442   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
6443   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
6444   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
6445   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
6446
6447   // create buttons for scrolling of drawing area and element list
6448   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
6449   {
6450     int id = scrollbutton_info[i].gadget_id;
6451     int graphic = scrollbutton_info[i].graphic;
6452     struct GraphicInfo *gd = &graphic_info[graphic];
6453     Bitmap *gd_bitmap = gd->bitmap;
6454     int gd_x1 = gd->src_x;
6455     int gd_y1 = gd->src_y;
6456     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6457     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6458     int width  = gd->width;
6459     int height = gd->height;
6460     int x = scrollbutton_pos[i].x;
6461     int y = scrollbutton_pos[i].y;
6462     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6463
6464     if (id == GADGET_ID_SCROLL_LIST_UP ||
6465         id == GADGET_ID_SCROLL_LIST_DOWN)
6466     {
6467       x += PX;
6468       y += PY;
6469     }
6470     else
6471     {
6472       x += SX;
6473       y += SY;
6474     }
6475
6476     gi = CreateGadget(GDI_CUSTOM_ID, id,
6477                       GDI_CUSTOM_TYPE_ID, i,
6478                       GDI_IMAGE_ID, graphic,
6479                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
6480                       GDI_X, x,
6481                       GDI_Y, y,
6482                       GDI_WIDTH, width,
6483                       GDI_HEIGHT, height,
6484                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6485                       GDI_STATE, GD_BUTTON_UNPRESSED,
6486                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
6487                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
6488                       GDI_EVENT_MASK, event_mask,
6489                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6490                       GDI_CALLBACK_ACTION, HandleControlButtons,
6491                       GDI_END);
6492
6493     if (gi == NULL)
6494       Fail("cannot create gadget");
6495
6496     level_editor_gadget[id] = gi;
6497   }
6498
6499   // create buttons for element list
6500   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6501   {
6502     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
6503     int graphic = IMG_EDITOR_PALETTE_BUTTON;
6504     struct GraphicInfo *gd = &graphic_info[graphic];
6505     Bitmap *gd_bitmap = gd->bitmap;
6506     Bitmap *deco_bitmap;
6507     int deco_x, deco_y, deco_xpos, deco_ypos;
6508     int gd_x1 = gd->src_x;
6509     int gd_y1 = gd->src_y;
6510     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6511     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6512     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
6513     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
6514     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
6515     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
6516     int element = editor_elements[i];
6517     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
6518     unsigned int event_mask = GD_EVENT_RELEASED;
6519
6520     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
6521
6522     deco_xpos = (gd->width  - tile_size) / 2;
6523     deco_ypos = (gd->height - tile_size) / 2;
6524
6525     gi = CreateGadget(GDI_CUSTOM_ID, id,
6526                       GDI_CUSTOM_TYPE_ID, i,
6527                       GDI_IMAGE_ID, graphic,
6528                       GDI_INFO_TEXT, getElementInfoText(element),
6529                       GDI_X, x,
6530                       GDI_Y, y,
6531                       GDI_WIDTH, gd->width,
6532                       GDI_HEIGHT, gd->height,
6533                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6534                       GDI_STATE, GD_BUTTON_UNPRESSED,
6535                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
6536                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
6537                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
6538                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
6539                       GDI_DECORATION_SIZE, tile_size, tile_size,
6540                       GDI_DECORATION_SHIFTING, 1, 1,
6541                       GDI_EVENT_MASK, event_mask,
6542                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6543                       GDI_CALLBACK_ACTION, HandleControlButtons,
6544                       GDI_END);
6545
6546     if (gi == NULL)
6547       Fail("cannot create gadget");
6548
6549     level_editor_gadget[id] = gi;
6550   }
6551 }
6552
6553 static void CreateCounterButtons(void)
6554 {
6555   int max_infotext_len = getMaxInfoTextLength();
6556   int i;
6557
6558   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
6559   {
6560     int j;
6561     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
6562     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
6563
6564     // determine horizontal position to the right of specified gadget
6565     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6566       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
6567            ED_GADGET_TEXT_DISTANCE);
6568
6569     // determine horizontal offset for leading text
6570     if (counterbutton_info[i].text_left != NULL)
6571       x += getTextWidthForGadget(counterbutton_info[i].text_left);
6572
6573     for (j = 0; j < 2; j++)
6574     {
6575       struct GadgetInfo *gi;
6576       int id = (j == 0 ?
6577                 counterbutton_info[i].gadget_id_down :
6578                 counterbutton_info[i].gadget_id_up);
6579       int graphic;
6580       struct GraphicInfo *gd;
6581       int gd_x1, gd_x2, gd_y1, gd_y2;
6582       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6583       char infotext[max_infotext_len + 1];
6584
6585       if (i == ED_COUNTER_ID_SELECT_LEVEL)
6586       {
6587         graphic = (j == 0 ?
6588                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
6589                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
6590
6591         event_mask |= GD_EVENT_RELEASED;
6592
6593         if (j == 0)
6594         {
6595           x = DX + editor.button.prev_level.x;
6596           y = DY + editor.button.prev_level.y;
6597         }
6598         else
6599         {
6600           x = DX + editor.button.next_level.x;
6601           y = DY + editor.button.next_level.y;
6602         }
6603       }
6604       else
6605       {
6606         graphic = (j == 0 ?
6607                    IMG_EDITOR_COUNTER_DOWN :
6608                    IMG_EDITOR_COUNTER_UP);
6609       }
6610
6611       gd = &graphic_info[graphic];
6612
6613       gd_x1 = gd->src_x;
6614       gd_y1 = gd->src_y;
6615       gd_x2 = gd->src_x + gd->pressed_xoffset;
6616       gd_y2 = gd->src_y + gd->pressed_yoffset;
6617
6618       sprintf(infotext, "%s counter value by 1, 5 or 10",
6619               (j == 0 ? "decrease" : "increase"));
6620
6621       gi = CreateGadget(GDI_CUSTOM_ID, id,
6622                         GDI_CUSTOM_TYPE_ID, i,
6623                         GDI_IMAGE_ID, graphic,
6624                         GDI_INFO_TEXT, infotext,
6625                         GDI_X, x,
6626                         GDI_Y, y,
6627                         GDI_WIDTH, gd->width,
6628                         GDI_HEIGHT, gd->height,
6629                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6630                         GDI_STATE, GD_BUTTON_UNPRESSED,
6631                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6632                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6633                         GDI_EVENT_MASK, event_mask,
6634                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6635                         GDI_CALLBACK_ACTION, HandleCounterButtons,
6636                         GDI_END);
6637
6638       if (gi == NULL)
6639         Fail("cannot create gadget");
6640
6641       level_editor_gadget[id] = gi;
6642       right_gadget_border[id] =
6643         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
6644
6645       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
6646
6647       if (j == 0)
6648       {
6649         int font_type = FONT_INPUT_1;
6650         int font_type_active = FONT_INPUT_1_ACTIVE;
6651
6652         id = counterbutton_info[i].gadget_id_text;
6653
6654         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6655
6656         if (i == ED_COUNTER_ID_SELECT_LEVEL)
6657         {
6658           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
6659
6660           font_type = FONT_LEVEL_NUMBER;
6661           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
6662
6663           x = DX + editor.input.level_number.x;
6664           y = DY + editor.input.level_number.y;
6665         }
6666         else
6667         {
6668           graphic = IMG_EDITOR_COUNTER_INPUT;
6669         }
6670
6671         gd = &graphic_info[graphic];
6672
6673         gd_x1 = gd->src_x;
6674         gd_y1 = gd->src_y;
6675         gd_x2 = gd->src_x + gd->active_xoffset;
6676         gd_y2 = gd->src_y + gd->active_yoffset;
6677
6678         gi = CreateGadget(GDI_CUSTOM_ID, id,
6679                           GDI_CUSTOM_TYPE_ID, i,
6680                           GDI_IMAGE_ID, graphic,
6681                           GDI_INFO_TEXT, "enter counter value",
6682                           GDI_X, x,
6683                           GDI_Y, y,
6684                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
6685                           GDI_NUMBER_VALUE, 0,
6686                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
6687                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
6688                           GDI_TEXT_SIZE, 3,     // minimal counter text size
6689                           GDI_TEXT_FONT, font_type,
6690                           GDI_TEXT_FONT_ACTIVE, font_type_active,
6691                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6692                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6693                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6694                           GDI_DESIGN_WIDTH, gd->width,
6695                           GDI_EVENT_MASK, event_mask,
6696                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6697                           GDI_CALLBACK_ACTION, HandleCounterButtons,
6698                           GDI_END);
6699
6700         if (gi == NULL)
6701           Fail("cannot create gadget");
6702
6703         level_editor_gadget[id] = gi;
6704         right_gadget_border[id] =
6705           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
6706
6707         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
6708       }
6709     }
6710   }
6711 }
6712
6713 static void CreateDrawingAreas(void)
6714 {
6715   int i;
6716
6717   // these values are not constant, but can change at runtime
6718   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
6719   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
6720
6721   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
6722   {
6723     struct GadgetInfo *gi;
6724     int id = drawingarea_info[i].gadget_id;
6725     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
6726     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
6727     int area_xsize = drawingarea_info[i].area_xsize;
6728     int area_ysize = drawingarea_info[i].area_ysize;
6729     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
6730                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
6731     unsigned int event_mask =
6732       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
6733       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
6734
6735     // determine horizontal position to the right of specified gadget
6736     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
6737       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
6738            ED_DRAWINGAREA_TEXT_DISTANCE);
6739
6740     // determine horizontal offset for leading text
6741     if (drawingarea_info[i].text_left != NULL)
6742       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
6743
6744     gi = CreateGadget(GDI_CUSTOM_ID, id,
6745                       GDI_CUSTOM_TYPE_ID, i,
6746                       GDI_X, x,
6747                       GDI_Y, y,
6748                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
6749                       GDI_AREA_SIZE, area_xsize, area_ysize,
6750                       GDI_ITEM_SIZE, item_size, item_size,
6751                       GDI_EVENT_MASK, event_mask,
6752                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
6753                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
6754                       GDI_END);
6755
6756     if (gi == NULL)
6757       Fail("cannot create gadget");
6758
6759     level_editor_gadget[id] = gi;
6760     right_gadget_border[id] =
6761       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
6762   }
6763 }
6764
6765 static void CreateTextInputGadgets(void)
6766 {
6767   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
6768   int max_infotext_len = getMaxInfoTextLength();
6769   int i;
6770
6771   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
6772   {
6773     int gd_x1 = gd->src_x;
6774     int gd_y1 = gd->src_y;
6775     int gd_x2 = gd->src_x + gd->active_xoffset;
6776     int gd_y2 = gd->src_y + gd->active_yoffset;
6777     struct GadgetInfo *gi;
6778     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6779     char infotext[MAX_OUTPUT_LINESIZE + 1];
6780     int id = textinput_info[i].gadget_id;
6781     int x, y;
6782
6783     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
6784     {
6785       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
6786       int border_size = gd->border_size;
6787       int font_nr = FONT_INPUT_1;
6788       int font_height = getFontHeight(font_nr);
6789       int xoffset = element_border + TILEX + element_border + 3 * border_size;
6790       int yoffset = element_border + (TILEY - font_height) / 2;
6791
6792       x = (editor.settings.element_name.x != -1 ?
6793            editor.settings.element_name.x :
6794            editor.settings.element_graphic.x + xoffset) - border_size;
6795       y = (editor.settings.element_name.y != -1 ?
6796            editor.settings.element_name.y :
6797            editor.settings.element_graphic.y + yoffset) - border_size;
6798     }
6799     else
6800     {
6801       x = ED_SETTINGS_X(textinput_info[i].x);
6802       y = ED_SETTINGS_Y(textinput_info[i].y);
6803     }
6804
6805     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
6806     infotext[max_infotext_len] = '\0';
6807
6808     gi = CreateGadget(GDI_CUSTOM_ID, id,
6809                       GDI_CUSTOM_TYPE_ID, i,
6810                       GDI_INFO_TEXT, infotext,
6811                       GDI_X, SX + x,
6812                       GDI_Y, SY + y,
6813                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
6814                       GDI_TEXT_VALUE, textinput_info[i].value,
6815                       GDI_TEXT_SIZE, textinput_info[i].size,
6816                       GDI_TEXT_FONT, FONT_INPUT_1,
6817                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6818                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6819                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6820                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6821                       GDI_DESIGN_WIDTH, gd->width,
6822                       GDI_EVENT_MASK, event_mask,
6823                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6824                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
6825                       GDI_END);
6826
6827     if (gi == NULL)
6828       Fail("cannot create gadget");
6829
6830     level_editor_gadget[id] = gi;
6831   }
6832 }
6833
6834 static void CreateTextAreaGadgets(void)
6835 {
6836   int max_infotext_len = getMaxInfoTextLength();
6837   int i;
6838
6839   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
6840   {
6841     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
6842     int gd_x1 = gd->src_x;
6843     int gd_y1 = gd->src_y;
6844     int gd_x2 = gd->src_x + gd->active_xoffset;
6845     int gd_y2 = gd->src_y + gd->active_yoffset;
6846     struct GadgetInfo *gi;
6847     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
6848     char infotext[MAX_OUTPUT_LINESIZE + 1];
6849     int id = textarea_info[i].gadget_id;
6850     int area_xsize = textarea_info[i].xsize;
6851     int area_ysize = textarea_info[i].ysize;
6852
6853     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
6854     infotext[max_infotext_len] = '\0';
6855
6856     gi = CreateGadget(GDI_CUSTOM_ID, id,
6857                       GDI_CUSTOM_TYPE_ID, i,
6858                       GDI_INFO_TEXT, infotext,
6859                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
6860                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
6861                       GDI_TYPE, GD_TYPE_TEXT_AREA,
6862                       GDI_AREA_SIZE, area_xsize, area_ysize,
6863                       GDI_TEXT_FONT, FONT_INPUT_1,
6864                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6865                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6866                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6867                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6868                       GDI_DESIGN_WIDTH, gd->width,
6869                       GDI_EVENT_MASK, event_mask,
6870                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6871                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
6872                       GDI_END);
6873
6874     if (gi == NULL)
6875       Fail("cannot create gadget");
6876
6877     level_editor_gadget[id] = gi;
6878   }
6879 }
6880
6881 static void CreateSelectboxGadgets(void)
6882 {
6883   int max_infotext_len = getMaxInfoTextLength();
6884   int i, j;
6885
6886   for (i = 0; i < ED_NUM_SELECTBOX; i++)
6887   {
6888     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
6889     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
6890     int gd_x1 = gd->src_x;
6891     int gd_y1 = gd->src_y;
6892     int gd_x2 = gd->src_x + gd->active_xoffset;
6893     int gd_y2 = gd->src_y + gd->active_yoffset;
6894     int selectbox_button_xsize = gd2->width;
6895     struct GadgetInfo *gi;
6896     char infotext[MAX_OUTPUT_LINESIZE + 1];
6897     int id = selectbox_info[i].gadget_id;
6898     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
6899     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
6900     unsigned int event_mask =
6901       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6902
6903     if (selectbox_info[i].size == -1)   // dynamically determine size
6904     {
6905       // (we cannot use -1 for uninitialized values if we directly compare
6906       // with results from strlen(), because the '<' and '>' operation will
6907       // implicitely cast -1 to an unsigned integer value!)
6908       selectbox_info[i].size = 0;
6909
6910       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
6911         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
6912           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
6913
6914       selectbox_info[i].size++;         // add one character empty space
6915     }
6916
6917     // determine horizontal position to the right of specified gadget
6918     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
6919       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
6920            ED_GADGET_TEXT_DISTANCE);
6921
6922     // determine horizontal offset for leading text
6923     if (selectbox_info[i].text_left != NULL)
6924       x += getTextWidthForGadget(selectbox_info[i].text_left);
6925
6926     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
6927     infotext[max_infotext_len] = '\0';
6928
6929     gi = CreateGadget(GDI_CUSTOM_ID, id,
6930                       GDI_CUSTOM_TYPE_ID, i,
6931                       GDI_INFO_TEXT, infotext,
6932                       GDI_X, x,
6933                       GDI_Y, y,
6934                       GDI_TYPE, GD_TYPE_SELECTBOX,
6935                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
6936                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
6937                       GDI_TEXT_SIZE, selectbox_info[i].size,
6938                       GDI_TEXT_FONT, FONT_INPUT_1,
6939                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6940                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
6941                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6942                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6943                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6944                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
6945                       GDI_DESIGN_WIDTH, gd->width,
6946                       GDI_EVENT_MASK, event_mask,
6947                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6948                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
6949                       GDI_END);
6950
6951     if (gi == NULL)
6952       Fail("cannot create gadget");
6953
6954     level_editor_gadget[id] = gi;
6955     right_gadget_border[id] =
6956       getRightGadgetBorder(gi, selectbox_info[i].text_right);
6957   }
6958 }
6959
6960 static void CreateTextbuttonGadgets(void)
6961 {
6962   int max_infotext_len = getMaxInfoTextLength();
6963   int i;
6964
6965   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
6966   {
6967     int id = textbutton_info[i].gadget_id;
6968     int is_tab_button =
6969       ((id >= GADGET_ID_LEVELCONFIG_LEVEL && id <= GADGET_ID_LEVELCONFIG_EDITOR) ||
6970        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
6971     int graphic =
6972       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
6973     int gadget_distance =
6974       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
6975     struct GraphicInfo *gd = &graphic_info[graphic];
6976     int gd_x1 = gd->src_x;
6977     int gd_y1 = gd->src_y;
6978     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6979     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6980     int gd_x1a = gd->src_x + gd->active_xoffset;
6981     int gd_y1a = gd->src_y + gd->active_yoffset;
6982     int border_xsize = gd->border_size + gd->draw_xoffset;
6983     int border_ysize = gd->border_size;
6984     struct GadgetInfo *gi;
6985     unsigned int event_mask = GD_EVENT_RELEASED;
6986     char infotext[MAX_OUTPUT_LINESIZE + 1];
6987     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
6988     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
6989
6990     if (textbutton_info[i].size == -1)  // dynamically determine size
6991       textbutton_info[i].size = strlen(textbutton_info[i].text);
6992
6993     sprintf(infotext, "%s", textbutton_info[i].infotext);
6994     infotext[max_infotext_len] = '\0';
6995
6996     // determine horizontal position to the right of specified gadget
6997     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6998     {
6999       int gadget_id_align = textbutton_info[i].gadget_id_align;
7000
7001       x = right_gadget_border[gadget_id_align] + gadget_distance;
7002
7003       if (textbutton_info[i].y == -1)
7004         y = level_editor_gadget[gadget_id_align]->y;
7005     }
7006
7007     // determine horizontal offset for leading text
7008     if (textbutton_info[i].text_left != NULL)
7009       x += getTextWidthForGadget(textbutton_info[i].text_left);
7010
7011     gi = CreateGadget(GDI_CUSTOM_ID, id,
7012                       GDI_CUSTOM_TYPE_ID, i,
7013                       GDI_IMAGE_ID, graphic,
7014                       GDI_INFO_TEXT, infotext,
7015                       GDI_X, x,
7016                       GDI_Y, y,
7017                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
7018                       GDI_TEXT_VALUE, textbutton_info[i].text,
7019                       GDI_TEXT_SIZE, textbutton_info[i].size,
7020                       GDI_TEXT_FONT, FONT_INPUT_2,
7021                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
7022                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7023                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7024                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7025                       GDI_BORDER_SIZE, border_xsize, border_ysize,
7026                       GDI_DESIGN_WIDTH, gd->width,
7027                       GDI_DECORATION_SHIFTING, 1, 1,
7028                       GDI_EVENT_MASK, event_mask,
7029                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7030                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
7031                       GDI_END);
7032
7033     if (gi == NULL)
7034       Fail("cannot create gadget");
7035
7036     level_editor_gadget[id] = gi;
7037     right_gadget_border[id] =
7038       getRightGadgetBorder(gi, textbutton_info[i].text_right);
7039   }
7040 }
7041
7042 static void CreateGraphicbuttonGadgets(void)
7043 {
7044   struct GadgetInfo *gi;
7045   int i;
7046
7047   // create buttons for scrolling of drawing area and element list
7048   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
7049   {
7050     int id = graphicbutton_info[i].gadget_id;
7051     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
7052     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
7053     int graphic = graphicbutton_info[i].graphic;
7054     struct GraphicInfo *gd = &graphic_info[graphic];
7055     int gd_x1 = gd->src_x;
7056     int gd_y1 = gd->src_y;
7057     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7058     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7059     unsigned int event_mask = GD_EVENT_RELEASED;
7060
7061     // determine horizontal position to the right of specified gadget
7062     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7063       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
7064            ED_GADGET_TEXT_DISTANCE);
7065
7066     // determine horizontal offset for leading text
7067     if (graphicbutton_info[i].text_left != NULL)
7068       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
7069
7070     gi = CreateGadget(GDI_CUSTOM_ID, id,
7071                       GDI_CUSTOM_TYPE_ID, i,
7072                       GDI_IMAGE_ID, graphic,
7073                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
7074                       GDI_X, x,
7075                       GDI_Y, y,
7076                       GDI_WIDTH, gd->width,
7077                       GDI_HEIGHT, gd->height,
7078                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7079                       GDI_STATE, GD_BUTTON_UNPRESSED,
7080                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7081                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7082                       GDI_EVENT_MASK, event_mask,
7083                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7084                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
7085                       GDI_END);
7086
7087     if (gi == NULL)
7088       Fail("cannot create gadget");
7089
7090     level_editor_gadget[id] = gi;
7091     right_gadget_border[id] =
7092       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
7093   }
7094 }
7095
7096 static void CreateScrollbarGadgets(void)
7097 {
7098   int i;
7099
7100   // these values are not constant, but can change at runtime
7101   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
7102     SX + ED_SCROLL_HORIZONTAL_XPOS;
7103   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
7104     SY + ED_SCROLL_HORIZONTAL_YPOS;
7105   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
7106     ED_SCROLL_HORIZONTAL_XSIZE;
7107   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
7108     ED_SCROLL_HORIZONTAL_YSIZE;
7109   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
7110   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
7111   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
7112   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
7113
7114   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
7115     SX + ED_SCROLL_VERTICAL_XPOS;
7116   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
7117     SY + ED_SCROLL_VERTICAL_YPOS;
7118   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
7119     ED_SCROLL_VERTICAL_XSIZE;
7120   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
7121     ED_SCROLL_VERTICAL_YSIZE;
7122   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
7123   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
7124   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
7125   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
7126
7127   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
7128     PX + ED_SCROLL2_VERTICAL_XPOS;
7129   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
7130     PY + ED_SCROLL2_VERTICAL_YPOS;
7131   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
7132     ED_SCROLL2_VERTICAL_XSIZE;
7133   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
7134     ED_SCROLL2_VERTICAL_YSIZE;
7135   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
7136   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
7137   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
7138   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
7139
7140   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
7141   {
7142     int id = scrollbar_info[i].gadget_id;
7143     int graphic = scrollbar_info[i].graphic;
7144     struct GraphicInfo *gd = &graphic_info[graphic];
7145     int gd_x1 = gd->src_x;
7146     int gd_y1 = gd->src_y;
7147     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7148     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7149     struct GadgetInfo *gi;
7150     int items_max, items_visible, item_position;
7151     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
7152
7153     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
7154     {
7155       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
7156       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
7157       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
7158     }
7159     else        // drawing area scrollbars
7160     {
7161       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
7162       {
7163         items_max = MAX(lev_fieldx + 2, ed_fieldx);
7164         items_visible = ed_fieldx;
7165         item_position = 0;
7166       }
7167       else
7168       {
7169         items_max = MAX(lev_fieldy + 2, ed_fieldy);
7170         items_visible = ed_fieldy;
7171         item_position = 0;
7172       }
7173     }
7174
7175     gi = CreateGadget(GDI_CUSTOM_ID, id,
7176                       GDI_CUSTOM_TYPE_ID, i,
7177                       GDI_IMAGE_ID, graphic,
7178                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
7179                       GDI_X, scrollbar_pos[i].x,
7180                       GDI_Y, scrollbar_pos[i].y,
7181                       GDI_WIDTH, scrollbar_pos[i].width,
7182                       GDI_HEIGHT, scrollbar_pos[i].height,
7183                       GDI_TYPE, scrollbar_info[i].type,
7184                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
7185                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
7186                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
7187                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
7188                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
7189                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
7190                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
7191                       GDI_STATE, GD_BUTTON_UNPRESSED,
7192                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7193                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7194                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7195                       GDI_EVENT_MASK, event_mask,
7196                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7197                       GDI_CALLBACK_ACTION, HandleControlButtons,
7198                       GDI_END);
7199
7200     if (gi == NULL)
7201       Fail("cannot create gadget");
7202
7203     level_editor_gadget[id] = gi;
7204   }
7205 }
7206
7207 static void CreateCheckbuttonGadgets(void)
7208 {
7209   struct GadgetInfo *gi;
7210   int i;
7211
7212   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
7213   {
7214     int id = checkbutton_info[i].gadget_id;
7215     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
7216                    IMG_EDITOR_CHECKBOX);
7217     struct GraphicInfo *gd = &graphic_info[graphic];
7218     int gd_x1 = gd->src_x;
7219     int gd_y1 = gd->src_y;
7220     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7221     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7222     int gd_x1a = gd->src_x + gd->active_xoffset;
7223     int gd_y1a = gd->src_y + gd->active_yoffset;
7224     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7225     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7226     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
7227     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
7228     unsigned int event_mask = GD_EVENT_PRESSED;
7229
7230     // determine horizontal position to the right of specified gadget
7231     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7232       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
7233            ED_GADGET_TEXT_DISTANCE);
7234
7235     // determine horizontal offset for leading text
7236     if (checkbutton_info[i].text_left != NULL)
7237       x += getTextWidthForGadget(checkbutton_info[i].text_left);
7238
7239     gi = CreateGadget(GDI_CUSTOM_ID, id,
7240                       GDI_CUSTOM_TYPE_ID, i,
7241                       GDI_IMAGE_ID, graphic,
7242                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
7243                       GDI_X, x,
7244                       GDI_Y, y,
7245                       GDI_WIDTH, gd->width,
7246                       GDI_HEIGHT, gd->height,
7247                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
7248                       GDI_CHECKED, *checkbutton_info[i].value,
7249                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7250                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7251                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7252                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7253                       GDI_EVENT_MASK, event_mask,
7254                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7255                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
7256                       GDI_END);
7257
7258     if (gi == NULL)
7259       Fail("cannot create gadget");
7260
7261     level_editor_gadget[id] = gi;
7262     right_gadget_border[id] =
7263       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
7264   }
7265 }
7266
7267 static void CreateRadiobuttonGadgets(void)
7268 {
7269   int graphic = IMG_EDITOR_RADIOBUTTON;
7270   struct GraphicInfo *gd = &graphic_info[graphic];
7271   int gd_x1 = gd->src_x;
7272   int gd_y1 = gd->src_y;
7273   int gd_x2 = gd->src_x + gd->pressed_xoffset;
7274   int gd_y2 = gd->src_y + gd->pressed_yoffset;
7275   int gd_x1a = gd->src_x + gd->active_xoffset;
7276   int gd_y1a = gd->src_y + gd->active_yoffset;
7277   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7278   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7279   struct GadgetInfo *gi;
7280   int i;
7281
7282   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
7283   {
7284     int id = radiobutton_info[i].gadget_id;
7285     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
7286     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
7287     unsigned int event_mask = GD_EVENT_PRESSED;
7288
7289     int checked =
7290       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
7291
7292     // determine horizontal position to the right of specified gadget
7293     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
7294       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
7295            ED_GADGET_TEXT_DISTANCE);
7296
7297     // determine horizontal offset for leading text
7298     if (radiobutton_info[i].text_left != NULL)
7299       x += getTextWidthForGadget(radiobutton_info[i].text_left);
7300
7301     gi = CreateGadget(GDI_CUSTOM_ID, id,
7302                       GDI_CUSTOM_TYPE_ID, i,
7303                       GDI_IMAGE_ID, graphic,
7304                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
7305                       GDI_X, x,
7306                       GDI_Y, y,
7307                       GDI_WIDTH, gd->width,
7308                       GDI_HEIGHT, gd->height,
7309                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
7310                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
7311                       GDI_CHECKED, checked,
7312                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7313                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7314                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7315                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7316                       GDI_EVENT_MASK, event_mask,
7317                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7318                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
7319                       GDI_END);
7320
7321     if (gi == NULL)
7322       Fail("cannot create gadget");
7323
7324     level_editor_gadget[id] = gi;
7325     right_gadget_border[id] =
7326       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
7327   }
7328 }
7329
7330 void CreateLevelEditorGadgets(void)
7331 {
7332   // force EDITOR font inside level editor
7333   SetFontStatus(GAME_MODE_EDITOR);
7334
7335   // these values are not constant, but can change at runtime
7336   ed_fieldx = MAX_ED_FIELDX - 1;
7337   ed_fieldy = MAX_ED_FIELDY - 1;
7338
7339   num_editor_gadgets = NUM_EDITOR_GADGETS;
7340
7341   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
7342
7343   level_editor_gadget =
7344     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
7345   right_gadget_border =
7346     checked_calloc(num_editor_gadgets * sizeof(int));
7347
7348   // set number of empty (padding) element buttons to maximum number of buttons
7349   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
7350
7351   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
7352   editor_el_empty_ptr = editor_el_empty;
7353
7354   use_permanent_palette = !editor.palette.show_as_separate_screen;
7355
7356   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
7357
7358   ReinitializeElementList();
7359
7360   CreateControlButtons();
7361   CreateScrollbarGadgets();
7362
7363   // order of function calls is important because of cross-references
7364   CreateCheckbuttonGadgets();
7365   CreateCounterButtons();
7366   CreateRadiobuttonGadgets();
7367   CreateTextInputGadgets();
7368   CreateTextAreaGadgets();
7369   CreateSelectboxGadgets();
7370   CreateGraphicbuttonGadgets();
7371   CreateTextbuttonGadgets();
7372   CreateDrawingAreas();
7373
7374   ResetFontStatus();
7375 }
7376
7377 void FreeLevelEditorGadgets(void)
7378 {
7379   int i;
7380
7381   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
7382
7383   for (i = 0; i < num_editor_gadgets; i++)
7384   {
7385     FreeGadget(level_editor_gadget[i]);
7386
7387     level_editor_gadget[i] = NULL;
7388   }
7389
7390   checked_free(level_editor_gadget);
7391   checked_free(right_gadget_border);
7392
7393   checked_free(editor_el_empty);
7394 }
7395
7396 static void MapCounterButtons(int id)
7397 {
7398   int font_nr = FONT_TEXT_1;
7399   int font_height = getFontHeight(font_nr);
7400   int gadget_id_down = counterbutton_info[id].gadget_id_down;
7401   int gadget_id_text = counterbutton_info[id].gadget_id_text;
7402   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
7403   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
7404   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
7405   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
7406   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
7407   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7408   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7409   int yoffset = (gi_down->height - font_height) / 2;
7410   int x_left = gi_down->x - xoffset_left;
7411   int x_right;  // set after gadget position was modified
7412   int y_above = gi_down->y - yoffset_above;
7413   int x = gi_down->x;
7414   int y;        // set after gadget position was modified
7415
7416   // counter limits must be changed first to prevent value truncation
7417   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
7418                             counterbutton_info[id].max_value);
7419
7420   // right text position might have changed after setting position above
7421   x_right = gi_up->x + gi_up->width + xoffset_right;
7422
7423   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
7424
7425   // set position for "value[1,2,3,4]" counter gadgets (score in most cases)
7426   if (id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
7427       id <= ED_COUNTER_ID_ELEMENT_VALUE4)
7428   {
7429     ModifyGadget(gi_down, GDI_Y,
7430                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7431     ModifyGadget(gi_text, GDI_Y,
7432                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7433     ModifyGadget(gi_up,   GDI_Y,
7434                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7435   }
7436
7437   // vertical position might have changed after setting position above
7438   y = gi_up->y + yoffset;
7439
7440   if (counterbutton_info[id].text_above)
7441     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
7442
7443   if (counterbutton_info[id].text_left)
7444     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
7445
7446   if (counterbutton_info[id].text_right)
7447     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
7448
7449   MapGadget(gi_down);
7450   MapGadget(gi_text);
7451   MapGadget(gi_up);
7452 }
7453
7454 static void MapControlButtons(void)
7455 {
7456   int counter_id;
7457   int i;
7458
7459   // map toolbox buttons (excluding special CE toolbox buttons)
7460   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
7461     MapGadget(level_editor_gadget[i]);
7462
7463   // map toolbox buttons (element properties buttons)
7464   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
7465     MapGadget(level_editor_gadget[i]);
7466
7467   if (use_permanent_palette)
7468   {
7469     // map buttons to select elements
7470     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7471       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
7472     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
7473     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
7474     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
7475   }
7476
7477   // map buttons to select level
7478   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
7479   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
7480   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
7481   MapCounterButtons(counter_id);
7482 }
7483
7484 static void MapDrawingArea(int id)
7485 {
7486   int font_nr = FONT_TEXT_1;
7487   int font_height = getFontHeight(font_nr);
7488   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7489   int area_xsize = gi->drawing.area_xsize;
7490   int area_ysize = gi->drawing.area_ysize;
7491   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
7492   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
7493   int x_left  = gi->x - xoffset_left;
7494   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
7495   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
7496   int x_below = gi->x + (gi->width - xoffset_below) / 2;
7497   int y_side  = gi->y + (gi->height - font_height) / 2;
7498   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
7499   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
7500
7501   if (drawingarea_info[id].text_left)
7502     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
7503
7504   if (drawingarea_info[id].text_right)
7505     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
7506
7507   if (drawingarea_info[id].text_above)
7508     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
7509
7510   if (drawingarea_info[id].text_below)
7511     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
7512
7513   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
7514   {
7515     DrawElementBorder(gi->x, gi->y,
7516                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
7517                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
7518
7519     DrawDrawingArea(id);
7520   }
7521
7522   MapGadget(gi);
7523 }
7524
7525 static void MapTextInputGadget(int id)
7526 {
7527   int font_nr = FONT_TEXT_1;
7528   int font_height = getFontHeight(font_nr);
7529   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
7530   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7531   int x_above = ED_SETTINGS_X(textinput_info[id].x);
7532   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
7533
7534   if (textinput_info[id].text_above)
7535     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
7536
7537   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
7538
7539   MapGadget(gi);
7540 }
7541
7542 static void MapTextAreaGadget(int id)
7543 {
7544   int font_nr = FONT_TEXT_1;
7545   int font_height = getFontHeight(font_nr);
7546   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
7547   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7548   int x_above = ED_SETTINGS_X(textarea_info[id].x);
7549   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
7550   char *text_above = textarea_info[id].text_above;
7551
7552   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
7553     text_above = textarea_info[id].text_above_cropped;
7554
7555   if (text_above)
7556     DrawTextS(x_above, y_above, font_nr, text_above);
7557
7558   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
7559
7560   MapGadget(gi);
7561 }
7562
7563 static void MapSelectboxGadget(int id)
7564 {
7565   int font_nr = FONT_TEXT_1;
7566   int font_height = getFontHeight(font_nr);
7567   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
7568   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
7569   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7570   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7571   int yoffset = (gi->height - font_height) / 2;
7572   int x_left = gi->x - xoffset_left;
7573   int x_right = gi->x + gi->width + xoffset_right;
7574   int y_above = gi->y - yoffset_above;
7575   int x = gi->x;
7576   int y = gi->y + yoffset;
7577
7578   if (selectbox_info[id].text_above)
7579     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
7580
7581   if (selectbox_info[id].text_left)
7582     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
7583
7584   if (selectbox_info[id].text_right)
7585     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
7586
7587   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
7588
7589   MapGadget(gi);
7590 }
7591
7592 static void MapTextbuttonGadget(int id)
7593 {
7594   int font_nr = FONT_TEXT_1;
7595   int font_height = getFontHeight(font_nr);
7596   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
7597   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
7598   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7599   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7600   int yoffset = (gi->height - font_height) / 2;
7601   int x_left = gi->x - xoffset_left;
7602   int x_right = gi->x + gi->width + xoffset_right;
7603   int y_above = gi->y - yoffset_above;
7604   int x = gi->x;
7605   int y = gi->y + yoffset;
7606
7607   // only show button to delete change pages when more than minimum pages
7608   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
7609       custom_element.num_change_pages == MIN_CHANGE_PAGES)
7610     return;
7611
7612   if (textbutton_info[id].text_above)
7613     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
7614
7615   if (textbutton_info[id].text_left)
7616     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
7617
7618   if (textbutton_info[id].text_right)
7619     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
7620
7621   MapGadget(gi);
7622 }
7623
7624 static void MapGraphicbuttonGadget(int id)
7625 {
7626   int font_nr = FONT_TEXT_1;
7627   int font_height = getFontHeight(font_nr);
7628   struct GadgetInfo *gi= level_editor_gadget[graphicbutton_info[id].gadget_id];
7629   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
7630   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7631   int yoffset = (gi->height - font_height) / 2;
7632   int x_left = gi->x - xoffset_left;
7633   int x_right = gi->x + gi->width + xoffset_right;
7634   int y = gi->y + yoffset;
7635
7636   if (graphicbutton_info[id].text_left)
7637     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
7638
7639   if (graphicbutton_info[id].text_right)
7640     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
7641
7642   MapGadget(gi);
7643 }
7644
7645 static void MapRadiobuttonGadget(int id)
7646 {
7647   int font_nr = FONT_TEXT_1;
7648   int font_height = getFontHeight(font_nr);
7649   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
7650   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
7651   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7652   int yoffset = (gi->height - font_height) / 2;
7653   int x_left = gi->x - xoffset_left;
7654   int x_right = gi->x + gi->width + xoffset_right;
7655   int y = gi->y + yoffset;
7656   boolean checked =
7657     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
7658
7659   if (radiobutton_info[id].text_left)
7660     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
7661
7662   if (radiobutton_info[id].text_right)
7663     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
7664
7665   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
7666
7667   MapGadget(gi);
7668 }
7669
7670 static void MapCheckbuttonGadget(int id)
7671 {
7672   int font_nr = FONT_TEXT_1;
7673   int font_height = getFontHeight(font_nr);
7674   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
7675   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
7676   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7677   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7678   int yoffset = (gi->height - font_height) / 2;
7679   int y_above = gi->y - yoffset_above;
7680   int x = gi->x;
7681   int x_left, x_right, y;       // set after gadget position was modified
7682
7683   // set position for gadgets with dynamically determined position
7684   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
7685     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x), GDI_END);
7686   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
7687
7688   x_left = gi->x - xoffset_left;
7689   x_right = gi->x + gi->width + xoffset_right;
7690   y = gi->y + yoffset;
7691
7692   if (checkbutton_info[id].text_above)
7693     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
7694
7695   if (checkbutton_info[id].text_left)
7696     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
7697
7698   if (checkbutton_info[id].text_right)
7699     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
7700
7701   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
7702
7703   MapGadget(gi);
7704 }
7705
7706 static void MapMainDrawingArea(void)
7707 {
7708   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
7709   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
7710   int i;
7711
7712   if (suppressBorderElement())
7713   {
7714     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
7715     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
7716   }
7717
7718   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
7719   {
7720     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
7721           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
7722          no_horizontal_scrollbar) ||
7723         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
7724           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
7725          no_vertical_scrollbar))
7726       continue;
7727
7728     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
7729   }
7730
7731   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
7732   {
7733     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
7734         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
7735       continue;
7736
7737     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
7738   }
7739
7740   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
7741 }
7742
7743 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
7744 {
7745   int i;
7746
7747   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7748   {
7749     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
7750         i == GADGET_ID_CUSTOM_COPY_TO ||
7751         i == GADGET_ID_CUSTOM_EXCHANGE ||
7752         i == GADGET_ID_CUSTOM_COPY ||
7753         i == GADGET_ID_CUSTOM_PASTE)
7754     {
7755       if (map)
7756         MapGadget(level_editor_gadget[i]);
7757       else
7758         UnmapGadget(level_editor_gadget[i]);
7759     }
7760   }
7761 }
7762
7763 static void MapLevelEditorToolboxCustomGadgets(void)
7764 {
7765   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
7766 }
7767
7768 static void MapLevelEditorToolboxCustomGadgetsIfNeeded(void)
7769 {
7770   if (IS_CUSTOM_ELEMENT(properties_element) ||
7771       IS_GROUP_ELEMENT(properties_element) ||
7772       IS_EMPTY_ELEMENT(properties_element))
7773     MapLevelEditorToolboxCustomGadgets();
7774 }
7775
7776 static void UnmapLevelEditorToolboxCustomGadgets(void)
7777 {
7778   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
7779 }
7780
7781 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
7782 {
7783   int i;
7784
7785   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
7786   {
7787     if (i != GADGET_ID_SINGLE_ITEMS &&
7788         i != GADGET_ID_PICK_ELEMENT)
7789     {
7790       struct GadgetInfo *gi = level_editor_gadget[i];
7791
7792       if (map)
7793       {
7794         MapGadget(gi);
7795       }
7796       else
7797       {
7798         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
7799         struct GraphicInfo *gd = &graphic_info[graphic];
7800
7801         UnmapGadget(gi);
7802
7803         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
7804                    gi->width, gi->height, gi->x, gi->y);
7805
7806         redraw_mask |= REDRAW_DOOR_3;
7807       }
7808     }
7809   }
7810 }
7811
7812 static void MapLevelEditorToolboxDrawingGadgets(void)
7813 {
7814   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
7815 }
7816
7817 static void UnmapLevelEditorToolboxDrawingGadgets(void)
7818 {
7819   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
7820 }
7821
7822 static void UnmapDrawingArea(int id)
7823 {
7824   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
7825 }
7826
7827 static void UnmapLevelEditorFieldGadgets(void)
7828 {
7829   int i;
7830
7831   for (i = 0; i < num_editor_gadgets; i++)
7832     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
7833                           level_editor_gadget[i]->y))
7834       UnmapGadget(level_editor_gadget[i]);
7835 }
7836
7837 void UnmapLevelEditorGadgets(void)
7838 {
7839   int i;
7840
7841   for (i = 0; i < num_editor_gadgets; i++)
7842     UnmapGadget(level_editor_gadget[i]);
7843 }
7844
7845 static void ResetUndoBuffer(void)
7846 {
7847   undo_buffer_position = -1;
7848   undo_buffer_steps = -1;
7849   redo_buffer_steps = 0;
7850
7851   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
7852
7853   level.changed = FALSE;
7854 }
7855
7856 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
7857 {
7858   if (remap_toolbox_gadgets)
7859   {
7860     ModifyEditorElementList();
7861     RedrawDrawingElements();
7862   }
7863
7864   if (edit_mode == ED_MODE_LEVELCONFIG)
7865     DrawLevelConfigWindow();
7866   else if (edit_mode == ED_MODE_PROPERTIES)
7867     DrawPropertiesWindow();
7868   else if (edit_mode == ED_MODE_PALETTE)
7869     DrawPaletteWindow();
7870   else  // edit_mode == ED_MODE_DRAWING
7871     DrawDrawingWindowExt(remap_toolbox_gadgets);
7872 }
7873
7874 static void DrawEditModeWindow(void)
7875 {
7876   DrawEditModeWindowExt(TRUE);
7877 }
7878
7879 static void DrawEditModeWindow_PlayfieldOnly(void)
7880 {
7881   DrawEditModeWindowExt(FALSE);
7882 }
7883
7884 static void ChangeEditModeWindow(int new_edit_mode)
7885 {
7886   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
7887
7888   DrawEditModeWindow();
7889 }
7890
7891 static boolean LevelChanged(void)
7892 {
7893   boolean field_changed = FALSE;
7894   int x, y;
7895
7896   for (y = 0; y < lev_fieldy; y++)
7897     for (x = 0; x < lev_fieldx; x++)
7898       if (Tile[x][y] != level.field[x][y])
7899         field_changed = TRUE;
7900
7901   return (level.changed || field_changed);
7902 }
7903
7904 static boolean PrepareSavingIntoPersonalLevelSet(void)
7905 {
7906   static LevelDirTree *last_copied_leveldir = NULL;
7907   static LevelDirTree *last_written_leveldir = NULL;
7908   static int last_copied_level_nr = -1;
7909   static int last_written_level_nr = -1;
7910   LevelDirTree *leveldir_former = leveldir_current;
7911   int level_nr_former = level_nr;
7912   int new_level_nr;
7913
7914   // remember last mod/save so that for current session, we write
7915   // back to the same personal copy, asking only about overwrite.
7916   if (leveldir_current == last_copied_leveldir &&
7917       level_nr == last_copied_level_nr)
7918   {
7919     // "cd" to personal level set dir (as used when writing last copy)
7920     leveldir_current = last_written_leveldir;
7921     level_nr = last_written_level_nr;
7922
7923     return TRUE;
7924   }
7925
7926   if (!Request("This level is read-only! "
7927                "Save into personal level set?", REQ_ASK))
7928     return FALSE;
7929
7930   // "cd" to personal level set dir (for writing copy the first time)
7931   leveldir_current =
7932     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
7933
7934   // this may happen if "setup.internal.create_user_levelset" is FALSE
7935   // or if file "levelinfo.conf" is missing in personal user level set
7936   if (leveldir_current == NULL)
7937   {
7938     Request("Cannot find personal level set?!", REQ_CONFIRM);
7939
7940     leveldir_current = leveldir_former;
7941
7942     return FALSE;
7943   }
7944
7945   // find unused level number
7946   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
7947   {
7948     static char *level_filename = NULL;
7949
7950     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
7951
7952     if (!fileExists(level_filename))
7953       break;
7954   }
7955
7956   last_copied_leveldir = leveldir_former;
7957   last_copied_level_nr = level_nr_former;
7958
7959   last_written_leveldir = leveldir_current;
7960   last_written_level_nr = level_nr = new_level_nr;
7961
7962   return TRUE;
7963 }
7964
7965 static void ModifyLevelConfigForSavingIntoPersonalLevelSet(char *former_name)
7966 {
7967   static char *filename_levelinfo = NULL, *mod_name = NULL;
7968   FILE *file;
7969
7970   // annotate this copy-and-mod in personal levelinfo.conf
7971   setString(&filename_levelinfo,
7972             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
7973
7974   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
7975   {
7976     fprintf(file, "\n");
7977     fprintf(file, "# level %d was modified from:\n", level_nr);
7978     fprintf(file, "# - previous level set name:    %s\n",
7979             former_name);
7980     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
7981             level.file_info.nr, level.name);
7982     fprintf(file, "# - previous author:            %s\n",
7983             level.author);
7984     fprintf(file, "# - previous save date:         ");
7985
7986     if (level.creation_date.src == DATE_SRC_LEVELFILE)
7987     {
7988       fprintf(file, "%04d-%02d-%02d\n",
7989               level.creation_date.year,
7990               level.creation_date.month,
7991               level.creation_date.day);
7992     }
7993     else
7994     {
7995       fprintf(file, "not recorded\n");
7996     }
7997
7998     fclose(file);
7999   }
8000
8001   if (level_nr > leveldir_current->last_level)
8002     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
8003
8004   // else: allow the save even if annotation failed
8005
8006   // now... spray graffiti on the old level vital statistics
8007   // user can change these; just trying to set a good baseline
8008
8009   // don't truncate names for fear of making offensive or silly:
8010   // long-named original author only recorded in levelinfo.conf.
8011   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
8012   if (!strEqual(level.author, leveldir_current->author))
8013   {
8014     setString(&mod_name, getStringCat3(leveldir_current->author,
8015                                        " after ", level.author));
8016
8017     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8018       setString(&mod_name,
8019                 getStringCat2(leveldir_current->author, " (ed.)"));
8020
8021     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8022       setString(&mod_name, leveldir_current->author);
8023
8024     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
8025
8026     // less worried about truncation here
8027     setString(&mod_name, getStringCat2("Mod: ", level.name));
8028     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
8029   }
8030 }
8031
8032 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
8033                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
8034 {
8035   int x, y;
8036
8037   for (x = 0; x < lev_fieldx; x++)
8038     for (y = 0; y < lev_fieldy; y++)
8039       dst[x][y] = src[x][y];
8040 }
8041
8042 static int setSelectboxValue(int selectbox_id, int new_value)
8043 {
8044   int new_index_value = 0;
8045   int i;
8046
8047   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
8048     if (selectbox_info[selectbox_id].options[i].value == new_value)
8049       new_index_value = i;
8050
8051   *selectbox_info[selectbox_id].value =
8052     selectbox_info[selectbox_id].options[new_index_value].value;
8053
8054   return new_index_value;
8055 }
8056
8057 static void setSelectboxSpecialActionVariablesIfNeeded(void)
8058 {
8059   int i;
8060
8061   // change action mode and arg variables according to action type variable
8062   for (i = 0; action_arg_options[i].value != -1; i++)
8063   {
8064     if (action_arg_options[i].value == custom_element_change.action_type)
8065     {
8066       int mode = action_arg_options[i].mode;
8067
8068       // only change if corresponding selectbox has changed
8069       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
8070           action_arg_modes[mode])
8071         custom_element_change.action_mode = -1;
8072
8073       // only change if corresponding selectbox has changed
8074       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
8075           action_arg_options[i].options)
8076         custom_element_change.action_arg = -1;
8077
8078       break;
8079     }
8080   }
8081 }
8082
8083 static void setSelectboxSpecialActionOptions(void)
8084 {
8085   int i;
8086
8087   // change action mode and arg selectbox according to action type selectbox
8088   for (i = 0; action_arg_options[i].value != -1; i++)
8089   {
8090     if (action_arg_options[i].value == custom_element_change.action_type)
8091     {
8092       int mode = action_arg_options[i].mode;
8093
8094       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
8095                                    action_arg_modes[mode]);
8096       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
8097                                  custom_element_change.action_mode);
8098
8099       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
8100                                    action_arg_options[i].options);
8101       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
8102                                  custom_element_change.action_arg);
8103       break;
8104     }
8105   }
8106 }
8107
8108 static void copy_custom_element_settings(int element_from, int element_to)
8109 {
8110   struct ElementInfo *ei_from = &element_info[element_from];
8111   struct ElementInfo *ei_to = &element_info[element_to];
8112
8113   copyElementInfo(ei_from, ei_to);
8114 }
8115
8116 static void replace_custom_element_in_settings(int element_from,
8117                                                int element_to)
8118 {
8119   int i, j, x, y;
8120
8121   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8122   {
8123     struct ElementInfo *ei = &element_info[i];
8124
8125     for (y = 0; y < 3; y++)
8126       for (x = 0; x < 3; x++)
8127         if (ei->content.e[x][y] == element_from)
8128           ei->content.e[x][y] = element_to;
8129
8130     for (j = 0; j < ei->num_change_pages; j++)
8131     {
8132       struct ElementChangeInfo *change = &ei->change_page[j];
8133
8134       if (change->target_element == element_from)
8135         change->target_element = element_to;
8136
8137       if (change->initial_trigger_element == element_from)
8138         change->initial_trigger_element = element_to;
8139
8140       if (change->action_element == element_from)
8141         change->action_element = element_to;
8142
8143       for (y = 0; y < 3; y++)
8144         for (x = 0; x < 3; x++)
8145           if (change->target_content.e[x][y] == element_from)
8146             change->target_content.e[x][y] = element_to;
8147     }
8148
8149     if (ei->group != NULL)                              // group or internal
8150       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
8151         if (ei->group->element[j] == element_from)
8152           ei->group->element[j] = element_to;
8153   }
8154 }
8155
8156 static void replace_custom_element_in_playfield(int element_from,
8157                                                 int element_to)
8158 {
8159   int x, y;
8160
8161   for (x = 0; x < lev_fieldx; x++)
8162     for (y = 0; y < lev_fieldy; y++)
8163       if (Tile[x][y] == element_from)
8164         Tile[x][y] = element_to;
8165 }
8166
8167 static boolean CopyCustomElement(int element_old, int element_new,
8168                                  int copy_mode)
8169 {
8170   int copy_mode_orig = copy_mode;
8171
8172   if (copy_mode == GADGET_ID_CUSTOM_COPY)
8173   {
8174     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
8175                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
8176     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
8177   }
8178   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
8179   {
8180     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
8181                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
8182     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
8183
8184     level.changed = TRUE;
8185   }
8186   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
8187   {
8188     Request("Please choose custom element!", REQ_CONFIRM);
8189
8190     return FALSE;
8191   }
8192   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
8193   {
8194     Request("Please choose group element!", REQ_CONFIRM);
8195
8196     return FALSE;
8197   }
8198   else if (IS_EMPTY_ELEMENT(element_old) && !IS_EMPTY_ELEMENT(element_new))
8199   {
8200     Request("Please choose empty element!", REQ_CONFIRM);
8201
8202     return FALSE;
8203   }
8204   else
8205   {
8206     level.changed = TRUE;
8207   }
8208
8209   // when modifying custom/group element, ask for copying level template
8210   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
8211   {
8212     if (!AskToCopyAndModifyLevelTemplate())
8213       return FALSE;
8214   }
8215
8216   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
8217   {
8218     copy_custom_element_settings(element_new, element_old);
8219   }
8220   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
8221   {
8222     copy_custom_element_settings(element_old, element_new);
8223   }
8224   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
8225   {
8226     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
8227     copy_custom_element_settings(element_new, element_old);
8228     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
8229
8230     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
8231     replace_custom_element_in_settings(element_new, element_old);
8232     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
8233
8234     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
8235     replace_custom_element_in_playfield(element_new, element_old);
8236     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
8237   }
8238
8239   UpdateCustomElementGraphicGadgets();
8240   DrawPropertiesWindow();
8241
8242   return TRUE;
8243 }
8244
8245 static void CopyCustomElementPropertiesToEditor(int element)
8246 {
8247   int i;
8248   int current_change_page = element_info[element].current_change_page;
8249
8250   // dynamically (re)build selectbox for selecting change page
8251   for (i = 0; i < element_info[element].num_change_pages; i++)
8252   {
8253     sprintf(options_change_page_strings[i], "%d", i + 1);
8254
8255     options_change_page[i].value = i;
8256     options_change_page[i].text = options_change_page_strings[i];
8257   }
8258
8259   options_change_page[i].value = -1;
8260   options_change_page[i].text = NULL;
8261
8262   // needed here to initialize combined element properties
8263   InitElementPropertiesEngine(level.game_version);
8264
8265   element_info[element].change =
8266     &element_info[element].change_page[current_change_page];
8267
8268   custom_element = element_info[element];
8269   custom_element_change = *element_info[element].change;
8270
8271   // needed to initially set selectbox options for special action options
8272   setSelectboxSpecialActionOptions();
8273
8274   // needed to initially set selectbox value variables to reliable defaults
8275   for (i = 0; i < ED_NUM_SELECTBOX; i++)
8276     setSelectboxValue(i, *selectbox_info[i].value);
8277
8278   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
8279     custom_element_properties[i] = HAS_PROPERTY(element, i);
8280
8281   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
8282     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
8283
8284   // ---------- element settings: configure (custom elements) -----------------
8285
8286   // set accessible layer selectbox help value
8287   custom_element.access_type =
8288     (IS_WALKABLE(element) ? EP_WALKABLE :
8289      IS_PASSABLE(element) ? EP_PASSABLE :
8290      custom_element.access_type);
8291   custom_element.access_layer =
8292     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
8293      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
8294      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
8295      custom_element.access_layer);
8296   custom_element.access_protected =
8297     (IS_PROTECTED(element) ? 1 : 0);
8298   custom_element_properties[EP_ACCESSIBLE] =
8299     (IS_ACCESSIBLE_OVER(element) ||
8300      IS_ACCESSIBLE_INSIDE(element) ||
8301      IS_ACCESSIBLE_UNDER(element));
8302
8303   // set walk-to-object action selectbox help value
8304   custom_element.walk_to_action =
8305     (IS_DIGGABLE(element) ? EP_DIGGABLE :
8306      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
8307      IS_DROPPABLE(element) ? EP_DROPPABLE :
8308      IS_THROWABLE(element) ? EP_THROWABLE :
8309      IS_PUSHABLE(element) ? EP_PUSHABLE :
8310      custom_element.walk_to_action);
8311   custom_element_properties[EP_WALK_TO_OBJECT] =
8312     (IS_DIGGABLE(element) ||
8313      IS_COLLECTIBLE_ONLY(element) ||
8314      IS_DROPPABLE(element) ||
8315      IS_THROWABLE(element) ||
8316      IS_PUSHABLE(element));
8317
8318   // set smash targets selectbox help value
8319   custom_element.smash_targets =
8320     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
8321      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
8322      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
8323      custom_element.smash_targets);
8324   custom_element_properties[EP_CAN_SMASH] =
8325     (CAN_SMASH_EVERYTHING(element) ||
8326      CAN_SMASH_ENEMIES(element) ||
8327      CAN_SMASH_PLAYER(element));
8328
8329   // set deadliness selectbox help value
8330   custom_element.deadliness =
8331     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
8332      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
8333      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
8334      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
8335      custom_element.deadliness);
8336   custom_element_properties[EP_DEADLY] =
8337     (DONT_TOUCH(element) ||
8338      DONT_GET_HIT_BY(element) ||
8339      DONT_COLLIDE_WITH(element) ||
8340      DONT_RUN_INTO(element));
8341
8342   // ---------- element settings: advanced (custom elements) ------------------
8343
8344   // set "change by direct action" selectbox help value
8345   custom_element_change.direct_action =
8346     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
8347      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
8348      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
8349      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
8350      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
8351      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
8352      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
8353      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
8354      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
8355      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
8356      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
8357      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
8358      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
8359      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
8360      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
8361      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
8362      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
8363      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
8364      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
8365      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
8366      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
8367      custom_element_change.direct_action);
8368
8369   // set "change by other element action" selectbox help value
8370   custom_element_change.other_action =
8371     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
8372      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
8373      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
8374      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
8375      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
8376      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
8377      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
8378      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
8379      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
8380      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
8381      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
8382      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
8383      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
8384      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
8385      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
8386      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
8387      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
8388      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
8389      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
8390      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
8391      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
8392      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
8393      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
8394      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
8395      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
8396      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
8397      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
8398      custom_element_change.other_action);
8399 }
8400
8401 static void CopyGroupElementPropertiesToEditor(int element)
8402 {
8403   group_element_info = *element_info[element].group;
8404   custom_element = element_info[element];       // needed for description
8405 }
8406
8407 static void CopyEmptyElementPropertiesToEditor(int element)
8408 {
8409   custom_element = element_info[element];
8410 }
8411
8412 static void CopyClassicElementPropertiesToEditor(int element)
8413 {
8414   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
8415     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
8416       getMoveIntoAcidProperty(&level, element);
8417
8418   if (MAYBE_DONT_COLLIDE_WITH(element))
8419     custom_element_properties[EP_DONT_COLLIDE_WITH] =
8420       getDontCollideWithProperty(&level, element);
8421 }
8422
8423 static void CopyElementPropertiesToEditor(int element)
8424 {
8425   if (IS_CUSTOM_ELEMENT(element))
8426     CopyCustomElementPropertiesToEditor(element);
8427   else if (IS_GROUP_ELEMENT(element))
8428     CopyGroupElementPropertiesToEditor(element);
8429   else if (IS_EMPTY_ELEMENT(element))
8430     CopyEmptyElementPropertiesToEditor(element);
8431   else
8432     CopyClassicElementPropertiesToEditor(element);
8433 }
8434
8435 static boolean AskToCopyAndModifyLevelTemplate(void)
8436 {
8437   if (Request("Copy and modify settings from level template?", REQ_ASK))
8438   {
8439     level.use_custom_template = FALSE;
8440
8441     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
8442                  GDI_CHECKED, FALSE, GDI_END);
8443     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
8444                  GDI_CHECKED, FALSE, GDI_END);
8445
8446     return TRUE;
8447   }
8448   else
8449   {
8450     LoadLevelTemplate(-1);      // this resets all element modifications ...
8451
8452     DrawEditModeWindow();       // ... and copies them to 'custom_element'
8453
8454     return FALSE;
8455   }
8456 }
8457
8458 static void CopyCustomElementPropertiesToGame(int element)
8459 {
8460   int i;
8461   int access_type_and_layer;
8462
8463   // mark that this custom element has been modified
8464   custom_element.modified_settings = TRUE;
8465   level.changed = TRUE;
8466
8467   if (level.use_custom_template)
8468     AskToCopyAndModifyLevelTemplate();
8469
8470   element_info[element] = custom_element;
8471   *element_info[element].change = custom_element_change;
8472
8473   // ---------- element settings: configure (custom elements) -----------------
8474
8475   // set accessible property from checkbox and selectbox
8476   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
8477   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
8478   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
8479   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
8480   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
8481   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
8482   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
8483                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
8484                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
8485   custom_element_properties[access_type_and_layer] =
8486     custom_element_properties[EP_ACCESSIBLE];
8487   custom_element_properties[EP_PROTECTED] =
8488     (custom_element.access_protected != 0 &&
8489      custom_element_properties[EP_ACCESSIBLE]);
8490
8491   // set walk-to-object property from checkbox and selectbox
8492   custom_element_properties[EP_DIGGABLE] = FALSE;
8493   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
8494   custom_element_properties[EP_DROPPABLE] = FALSE;
8495   custom_element_properties[EP_THROWABLE] = FALSE;
8496   custom_element_properties[EP_PUSHABLE] = FALSE;
8497   custom_element_properties[custom_element.walk_to_action] =
8498     custom_element_properties[EP_WALK_TO_OBJECT];
8499
8500   // set smash property from checkbox and selectbox
8501   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
8502   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
8503   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
8504   custom_element_properties[custom_element.smash_targets] =
8505     custom_element_properties[EP_CAN_SMASH];
8506
8507   // set deadliness property from checkbox and selectbox
8508   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
8509   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
8510   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
8511   custom_element_properties[EP_DONT_TOUCH] = FALSE;
8512   custom_element_properties[custom_element.deadliness] =
8513     custom_element_properties[EP_DEADLY];
8514
8515   // ---------- element settings: advanced (custom elements) ------------------
8516
8517   // set player change event from checkbox and selectbox
8518   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
8519   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
8520   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
8521   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
8522   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
8523   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
8524   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
8525   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
8526   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
8527   custom_element_change_events[CE_SWITCHED] = FALSE;
8528   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
8529   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
8530   custom_element_change_events[CE_BLOCKED] = FALSE;
8531   custom_element_change_events[CE_IMPACT] = FALSE;
8532   custom_element_change_events[CE_SMASHED] = FALSE;
8533   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
8534   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
8535   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
8536   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
8537   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
8538   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
8539   custom_element_change_events[custom_element_change.direct_action] =
8540     custom_element_change_events[CE_BY_DIRECT_ACTION];
8541
8542   // set other element action change event from checkbox and selectbox
8543   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
8544   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
8545   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
8546   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
8547   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
8548   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
8549   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
8550   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
8551   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
8552   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
8553   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
8554   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
8555   custom_element_change_events[CE_TOUCHING_X] = FALSE;
8556   custom_element_change_events[CE_HITTING_X] = FALSE;
8557   custom_element_change_events[CE_DIGGING_X] = FALSE;
8558   custom_element_change_events[CE_HIT_BY_X] = FALSE;
8559   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
8560   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
8561   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
8562   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
8563   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
8564   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
8565   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
8566   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
8567   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
8568   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
8569   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
8570   custom_element_change_events[custom_element_change.other_action] =
8571     custom_element_change_events[CE_BY_OTHER_ACTION];
8572
8573   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
8574     SET_PROPERTY(element, i, custom_element_properties[i]);
8575
8576   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
8577     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
8578
8579   // copy change events also to special level editor variable
8580   custom_element = element_info[element];
8581   custom_element_change = *element_info[element].change;
8582
8583   // needed here to restore runtime value "element_info[element].gfx_element"
8584   InitElementPropertiesGfxElement();
8585 }
8586
8587 static void CopyGroupElementPropertiesToGame(int element)
8588 {
8589   // mark that this group element has been modified
8590   custom_element.modified_settings = TRUE;
8591   level.changed = TRUE;
8592
8593   if (level.use_custom_template)
8594     AskToCopyAndModifyLevelTemplate();
8595
8596   element_info[element] = custom_element;
8597   *element_info[element].group = group_element_info;
8598
8599   // needed here to restore runtime value "element_info[element].gfx_element"
8600   InitElementPropertiesGfxElement();
8601 }
8602
8603 static void CopyEmptyElementPropertiesToGame(int element)
8604 {
8605   // mark that this empty element has been modified
8606   custom_element.modified_settings = TRUE;
8607   level.changed = TRUE;
8608
8609   if (level.use_custom_template)
8610     AskToCopyAndModifyLevelTemplate();
8611
8612   element_info[element] = custom_element;
8613
8614   // needed here to restore runtime value "element_info[element].gfx_element"
8615   InitElementPropertiesGfxElement();
8616 }
8617
8618 static void CopyClassicElementPropertiesToGame(int element)
8619 {
8620   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
8621     setMoveIntoAcidProperty(&level, element,
8622                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
8623
8624   if (MAYBE_DONT_COLLIDE_WITH(element))
8625     setDontCollideWithProperty(&level, element,
8626                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
8627 }
8628
8629 static void CopyElementPropertiesToGame(int element)
8630 {
8631   if (IS_CUSTOM_ELEMENT(element))
8632     CopyCustomElementPropertiesToGame(element);
8633   else if (IS_GROUP_ELEMENT(element))
8634     CopyGroupElementPropertiesToGame(element);
8635   else if (IS_EMPTY_ELEMENT(element))
8636     CopyEmptyElementPropertiesToGame(element);
8637   else
8638     CopyClassicElementPropertiesToGame(element);
8639 }
8640
8641 #if DEBUG
8642 static void CheckElementDescriptions(void)
8643 {
8644   int i;
8645
8646   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8647     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
8648       Warn("no element description file for element '%s'", EL_NAME(i));
8649 }
8650 #endif
8651
8652 static int getMaxEdFieldX(boolean has_scrollbar)
8653 {
8654   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
8655   int sxsize = SXSIZE - scrollbar_width;
8656   int max_ed_fieldx = sxsize / ed_tilesize;
8657
8658   return max_ed_fieldx;
8659 }
8660
8661 static int getMaxEdFieldY(boolean has_scrollbar)
8662 {
8663   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
8664                          INFOTEXT_YSIZE_FULL : 0);
8665   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
8666   int sysize = SYSIZE - scrollbar_height - infotext_height;
8667   int max_ed_fieldy = sysize / ed_tilesize;
8668
8669   return max_ed_fieldy;
8670 }
8671
8672 static void InitZoomLevelSettings(int zoom_tilesize)
8673 {
8674   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
8675
8676   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
8677   {
8678     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
8679     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
8680
8681     // make sure that tile size is always a power of 2
8682     ed_tilesize = (1 << log_2(ed_tilesize));
8683
8684     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
8685     {
8686       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
8687       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
8688     }
8689   }
8690
8691   last_game_engine_type = level.game_engine_type;
8692
8693   // limit zoom tilesize by upper and lower bound
8694   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
8695
8696   // store zoom tilesize in auto setup file only if it was manually changed
8697   if (zoom_tilesize != -1)
8698     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
8699
8700   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
8701   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
8702 }
8703
8704 static void InitDrawingElements(void)
8705 {
8706   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
8707
8708   if (level.game_engine_type == game_engine_type_last)
8709     return;
8710
8711   if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
8712   {
8713     new_element1 = EL_SP_CHIP_SINGLE;
8714     new_element2 = EL_EMPTY;
8715     new_element3 = EL_SP_BASE;
8716   }
8717   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
8718   {
8719     new_element1 = EL_MM_MIRROR_START;
8720     new_element2 = EL_EMPTY;
8721     new_element3 = EL_MM_WOODEN_WALL;
8722   }
8723   else
8724   {
8725     new_element1 = EL_WALL;
8726     new_element2 = EL_EMPTY;
8727     new_element3 = EL_SAND;
8728   }
8729
8730   game_engine_type_last = level.game_engine_type;
8731 }
8732
8733 static void InitLevelSetInfo(void)
8734 {
8735   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
8736            "%s", leveldir_current->name);
8737   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
8738            "%s", leveldir_current->author);
8739
8740   levelset_num_levels = leveldir_current->levels;
8741
8742   levelset_use_levelset_artwork = FALSE;
8743   levelset_copy_level_template = FALSE;
8744
8745   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
8746 }
8747
8748 static void ChangeEditorToLevelSet(char *levelset_subdir)
8749 {
8750   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
8751
8752   // the previous level set might have used custom artwork
8753   ReloadCustomArtwork(0);
8754
8755   LoadLevelSetup_SeriesInfo();
8756
8757   SaveLevelSetup_LastSeries();
8758   SaveLevelSetup_SeriesInfo();
8759
8760   TapeErase();
8761
8762   LoadLevel(level_nr);
8763   LoadScore(level_nr);
8764
8765   DrawLevelEd();
8766 }
8767
8768 static boolean useEditorDoorAnimation(void)
8769 {
8770   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
8771   boolean door_1_viewport_unchanged =
8772     (vp_door_1->x      == DX     &&
8773      vp_door_1->y      == DY     &&
8774      vp_door_1->width  == DXSIZE &&
8775      vp_door_1->height == DYSIZE);
8776   boolean door_1_contains_toolbox =
8777     (EX >= DX &&
8778      EY >= DY &&
8779      EX + EXSIZE <= DX + DXSIZE &&
8780      EY + EYSIZE <= DY + DYSIZE);
8781
8782   return (door_1_viewport_unchanged && door_1_contains_toolbox);
8783 }
8784
8785 static void DrawEditorDoorBackground(int graphic, int x, int y,
8786                                      int width, int height)
8787 {
8788   struct GraphicInfo *g = &graphic_info[graphic];
8789
8790   if (g->bitmap != NULL)
8791     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
8792                MIN(width, g->width), MIN(height, g->height), x, y);
8793   else
8794     ClearRectangle(drawto, x, y, width, height);
8795 }
8796
8797 static void DrawEditorDoorContent(void)
8798 {
8799   // needed for gadgets drawn on background (like palette scrollbar)
8800   SetDoorBackgroundImage(IMG_UNDEFINED);
8801
8802   // copy default editor door content to main double buffer
8803   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
8804
8805   // draw bigger door
8806   DrawSpecialEditorDoor();
8807
8808   // draw new control window
8809   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
8810
8811   // draw all toolbox gadgets to editor doors
8812   MapControlButtons();
8813
8814   // when returning from test game to properties page, redraw toolbox gadgets
8815   if (edit_mode == ED_MODE_PROPERTIES)
8816   {
8817     UnmapLevelEditorToolboxDrawingGadgets();
8818     UnmapLevelEditorToolboxCustomGadgets();
8819
8820     MapLevelEditorToolboxCustomGadgetsIfNeeded();
8821   }
8822
8823   // draw all palette gadgets to editor doors
8824   ModifyEditorElementList();
8825   RedrawDrawingElements();
8826
8827   // copy actual editor door content to door double buffer for OpenDoor()
8828   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
8829 }
8830
8831 void DrawLevelEd(void)
8832 {
8833   int fade_mask = REDRAW_FIELD;
8834
8835   FadeSoundsAndMusic();
8836
8837   if (CheckFadeAll())
8838     fade_mask = REDRAW_ALL;
8839
8840   FadeOut(fade_mask);
8841
8842   // needed if different viewport properties defined for editor
8843   ChangeViewportPropertiesIfNeeded();
8844
8845   ClearField();
8846
8847   InitZoomLevelSettings(-1);
8848   InitDrawingElements();
8849   InitLevelSetInfo();
8850
8851 #if DEBUG
8852   CheckElementDescriptions();
8853 #endif
8854
8855   if (level_editor_test_game)
8856   {
8857     CopyPlayfield(level.field, Tile);
8858     CopyPlayfield(TileBackup, level.field);
8859
8860     level_editor_test_game = FALSE;
8861   }
8862   else
8863   {
8864     edit_mode = ED_MODE_DRAWING;
8865     edit_mode_levelconfig = ED_MODE_LEVELCONFIG_LEVEL;
8866     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
8867
8868     ResetUndoBuffer();
8869
8870     level_xpos = -1;
8871     level_ypos = -1;
8872   }
8873
8874   // redraw_mask |= REDRAW_ALL;
8875
8876   FreeLevelEditorGadgets();
8877   CreateLevelEditorGadgets();
8878
8879   ReinitializeElementList();            // update dynamic level element list
8880   ReinitializeElementListButtons();     // custom element may look different
8881
8882   InitElementPropertiesGfxElement();
8883
8884   UnmapAllGadgets();
8885
8886   DrawEditModeWindow_PlayfieldOnly();
8887
8888   DrawMaskedBorder(fade_mask);
8889
8890   // use door animation if door 1 viewport is unchanged and contains toolbox
8891   if (useEditorDoorAnimation())
8892   {
8893     FadeIn(fade_mask);
8894
8895     DrawEditorDoorContent();
8896
8897     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
8898   }
8899   else
8900   {
8901     DrawEditorDoorContent();
8902
8903     FadeIn(fade_mask);
8904   }
8905
8906   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
8907 }
8908
8909 static void AdjustDrawingAreaGadgets(void)
8910 {
8911   int ed_xsize = lev_fieldx + 2;
8912   int ed_ysize = lev_fieldy + 2;
8913   int max_ed_fieldx = MAX_ED_FIELDX;
8914   int max_ed_fieldy = MAX_ED_FIELDY;
8915   boolean horizontal_scrollbar_needed;
8916   boolean vertical_scrollbar_needed;
8917   int x, y, width, height;
8918
8919   if (suppressBorderElement())
8920   {
8921     ed_xsize = lev_fieldx;
8922     ed_ysize = lev_fieldy;
8923   }
8924
8925   // check if we need any scrollbars
8926   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
8927   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
8928
8929   // check if we have a smaller editor field because of scrollbars
8930   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
8931   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
8932
8933   // check again if we now need more scrollbars because of less space
8934   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
8935   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
8936
8937   // check if editor field gets even smaller after adding new scrollbars
8938   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
8939   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
8940
8941   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
8942   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
8943
8944   x = SX + ed_fieldx * ed_tilesize;
8945   y = SY + ed_fieldy * ed_tilesize;
8946
8947   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
8948   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
8949
8950   // adjust drawing area gadget
8951   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
8952                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
8953                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
8954                GDI_END);
8955
8956   // adjust horizontal scrollbar gadgets
8957   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
8958                GDI_Y, y,
8959                GDI_END);
8960   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
8961                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
8962                GDI_Y, y,
8963                GDI_END);
8964   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
8965                GDI_Y, y,
8966                GDI_WIDTH, width,
8967                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
8968                GDI_END);
8969
8970   // adjust vertical scrollbar gadgets
8971   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
8972                GDI_X, x,
8973                GDI_END);
8974   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
8975                GDI_X, x,
8976                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
8977                GDI_END);
8978   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
8979                GDI_X, x,
8980                GDI_HEIGHT, height,
8981                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
8982                GDI_END);
8983 }
8984
8985 static void AdjustLevelScrollPosition(void)
8986 {
8987   if (level_xpos < -1)
8988     level_xpos = -1;
8989   if (level_xpos > lev_fieldx - ed_fieldx + 1)
8990     level_xpos = lev_fieldx - ed_fieldx + 1;
8991   if (lev_fieldx < ed_fieldx - 2)
8992     level_xpos = -1;
8993
8994   if (level_ypos < -1)
8995     level_ypos = -1;
8996   if (level_ypos > lev_fieldy - ed_fieldy + 1)
8997     level_ypos = lev_fieldy - ed_fieldy + 1;
8998   if (lev_fieldy < ed_fieldy - 2)
8999     level_ypos = -1;
9000
9001   if (suppressBorderElement())
9002   {
9003     level_xpos = 0;
9004     level_ypos = 0;
9005   }
9006 }
9007
9008 static void AdjustEditorScrollbar(int id)
9009 {
9010   struct GadgetInfo *gi = level_editor_gadget[id];
9011   int items_max, items_visible, item_position;
9012
9013   if (id == GADGET_ID_SCROLL_HORIZONTAL)
9014   {
9015     items_max = MAX(lev_fieldx + 2, ed_fieldx);
9016     items_visible = ed_fieldx;
9017     item_position = level_xpos + 1;
9018   }
9019   else
9020   {
9021     items_max = MAX(lev_fieldy + 2, ed_fieldy);
9022     items_visible = ed_fieldy;
9023     item_position = level_ypos + 1;
9024   }
9025
9026   if (item_position > items_max - items_visible)
9027     item_position = items_max - items_visible;
9028
9029   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9030                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9031 }
9032
9033 static void AdjustElementListScrollbar(void)
9034 {
9035   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
9036   int items_max, items_visible, item_position;
9037
9038   // correct position of element list scrollbar
9039   if (element_shift < 0)
9040     element_shift = 0;
9041   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
9042     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
9043
9044   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
9045   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
9046   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
9047
9048   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9049                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
9050                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9051 }
9052
9053 static void ModifyEditorCounterValue(int counter_id, int new_value)
9054 {
9055   int *counter_value = counterbutton_info[counter_id].value;
9056   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9057   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9058
9059   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
9060
9061   if (counter_value != NULL)
9062     *counter_value = gi->textinput.number_value;
9063 }
9064
9065 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
9066 {
9067   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9068   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9069
9070   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
9071
9072   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
9073       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
9074   {
9075     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
9076     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
9077
9078     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
9079     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
9080                  GDI_END);
9081   }
9082 }
9083
9084 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
9085 {
9086   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9087   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9088   int new_index_value = setSelectboxValue(selectbox_id, new_value);
9089
9090   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
9091 }
9092
9093 static void ModifyEditorSelectboxOptions(int selectbox_id,
9094                                          struct ValueTextInfo *options)
9095 {
9096   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9097   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9098
9099   selectbox_info[selectbox_id].options = options;
9100
9101   // set index to zero -- list may be shorter now (correct later, if needed)
9102   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
9103                GDI_SELECTBOX_OPTIONS, options, GDI_END);
9104 }
9105
9106 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
9107 {
9108   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
9109   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9110
9111   drawingarea_info[drawingarea_id].area_xsize = xsize;
9112   drawingarea_info[drawingarea_id].area_ysize = ysize;
9113
9114   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
9115 }
9116
9117 static void ModifyEditorElementList(void)
9118 {
9119   int i;
9120
9121   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
9122     return;
9123
9124   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
9125   {
9126     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
9127     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9128     struct GadgetDesign *gd = &gi->deco.design;
9129     int element = editor_elements[element_shift + i];
9130     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
9131
9132     UnmapGadget(gi);
9133
9134     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
9135
9136     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
9137
9138     MapGadget(gi);
9139   }
9140 }
9141
9142 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
9143 {
9144   int graphic = el2edimg(element);
9145   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
9146
9147   if (pos->x == -1 &&
9148       pos->y == -1)
9149     return;
9150
9151   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
9152 }
9153
9154 static void ModifyDrawingElementButton(int element, int id)
9155 {
9156   struct GadgetInfo *gi = level_editor_gadget[id];
9157   Bitmap *deco_bitmap;
9158   int deco_x, deco_y;
9159   int tile_size = gi->deco.width;
9160
9161   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
9162
9163   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
9164 }
9165
9166 static void PickDrawingElement(int button, int element)
9167 {
9168   struct
9169   {
9170     int *new_element;
9171     struct XYTileSize *pos;
9172     int id;
9173   } de, drawing_elements[] =
9174   {
9175     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
9176     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
9177     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
9178   };
9179
9180   if (button < 1 || button > 3)
9181     return;
9182
9183   if (IS_MM_WALL(element))
9184     element = map_mm_wall_element(element);
9185
9186   de = drawing_elements[button - 1];
9187
9188   *de.new_element = element;    // update global drawing element variable
9189
9190   DrawDrawingElementGraphic(element, de.pos);
9191   ModifyDrawingElementButton(element, de.id);
9192
9193   redraw_mask |= REDRAW_DOOR_1;
9194 }
9195
9196 static void RedrawDrawingElements(void)
9197 {
9198   PickDrawingElement(1, new_element1);
9199   PickDrawingElement(2, new_element2);
9200   PickDrawingElement(3, new_element3);
9201 }
9202
9203 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
9204 {
9205   stick_element_properties_window = FALSE;
9206
9207   SetMainBackgroundImage(IMG_UNDEFINED);
9208   ClearField();
9209
9210   UnmapLevelEditorFieldGadgets();
9211
9212   AdjustDrawingAreaGadgets();
9213   AdjustLevelScrollPosition();
9214   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
9215   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
9216
9217   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
9218
9219   MapMainDrawingArea();
9220
9221   if (remap_toolbox_gadgets)
9222   {
9223     UnmapLevelEditorToolboxCustomGadgets();
9224     MapLevelEditorToolboxDrawingGadgets();
9225   }
9226 }
9227
9228 static void DrawDrawingWindow(void)
9229 {
9230   DrawDrawingWindowExt(TRUE);
9231 }
9232
9233 static int getTabulatorBarWidth(void)
9234 {
9235   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
9236   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
9237
9238   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
9239 }
9240
9241 static int getTabulatorBarHeight(void)
9242 {
9243   return ED_TAB_BAR_HEIGHT;
9244 }
9245
9246 static Pixel getTabulatorBarColor(void)
9247 {
9248   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
9249   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
9250   int gd_x = gd->x + gd_gi1->border.width / 2;
9251   int gd_y = gd->y + gd_gi1->height - 1;
9252
9253   return GetPixel(gd->bitmap, gd_x, gd_y);
9254 }
9255
9256 static void DrawLevelConfigTabulatorGadgets(void)
9257 {
9258   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
9259   Pixel tab_color = getTabulatorBarColor();
9260   int id_first = ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST;
9261   int id_last  = ED_TAB_BUTTON_ID_LEVELCONFIG_LAST;
9262   int i;
9263
9264   for (i = id_first; i <= id_last; i++)
9265   {
9266     int gadget_id = textbutton_info[i].gadget_id;
9267     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9268     boolean active = (i != edit_mode_levelconfig);
9269
9270     // draw background line below tabulator button
9271     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
9272
9273     // draw solid line below inactive tabulator buttons
9274     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
9275       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
9276                     ED_GADGET_TINY_DISTANCE, tab_color);
9277
9278     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
9279     MapTextbuttonGadget(i);
9280   }
9281
9282   // draw little border line below tabulator buttons
9283   if (tab_color != BLACK_PIXEL)                 // black => transparent
9284     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
9285                   ED_GADGET_TINY_DISTANCE,
9286                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
9287 }
9288
9289 static void DrawPropertiesTabulatorGadgets(void)
9290 {
9291   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
9292   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
9293   int gd_x = gd->x + gd_gi1->border.width / 2;
9294   int gd_y = gd->y + gd_gi1->height - 1;
9295   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
9296   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
9297   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
9298   int i;
9299
9300   // draw two config tabulators for player elements
9301   if (IS_PLAYER_ELEMENT(properties_element))
9302     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
9303
9304   // draw two config and one "change" tabulator for custom elements
9305   if (IS_CUSTOM_ELEMENT(properties_element))
9306     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
9307
9308   for (i = id_first; i <= id_last; i++)
9309   {
9310     int gadget_id = textbutton_info[i].gadget_id;
9311     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9312     boolean active = (i != edit_mode_properties);
9313
9314     // use "config 1" and "config 2" instead of "config" for players and CEs
9315     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
9316         (IS_PLAYER_ELEMENT(properties_element) ||
9317          IS_CUSTOM_ELEMENT(properties_element)))
9318       continue;
9319
9320     // draw background line below tabulator button
9321     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
9322
9323     // draw solid line below inactive tabulator buttons
9324     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
9325       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
9326                     ED_GADGET_TINY_DISTANCE, tab_color);
9327
9328     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
9329     MapTextbuttonGadget(i);
9330   }
9331
9332   // draw little border line below tabulator buttons
9333   if (tab_color != BLACK_PIXEL)                 // black => transparent
9334     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
9335                   ED_GADGET_TINY_DISTANCE,
9336                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
9337 }
9338
9339 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
9340 {
9341   DrawText(SX + xpos, SY + ypos, text, font_nr);
9342 }
9343
9344 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
9345                                            int xpos, int ypos)
9346 {
9347   int font_width = getFontWidth(font_nr);
9348   int font_height = getFontHeight(font_nr);
9349   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
9350   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
9351
9352   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
9353                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
9354                       TRUE, FALSE, FALSE);
9355 }
9356
9357 static void DrawLevelConfigLevel(void)
9358 {
9359   int i;
9360
9361   // draw counter gadgets
9362   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
9363     MapCounterButtons(i);
9364
9365   // draw checkbutton gadgets
9366   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
9367     MapCheckbuttonGadget(i);
9368
9369   // draw selectbox gadgets
9370   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
9371     MapSelectboxGadget(i);
9372
9373   // draw text input gadgets
9374   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
9375     MapTextInputGadget(i);
9376 }
9377
9378 static char *getLevelSubdirFromSaveMode(int save_mode)
9379 {
9380   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
9381     return getNewUserLevelSubdir();
9382
9383   return leveldir_current->subdir;
9384 }
9385
9386 static void DrawLevelConfigLevelSet_DirectoryInfo(void)
9387 {
9388   char *directory_text = "Level set directory:";
9389   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
9390   int font1_nr = FONT_TEXT_1;
9391   int font2_nr = FONT_TEXT_2;
9392   int font1_height = getFontHeight(font1_nr);
9393   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
9394   int x = ED_LEVEL_SETTINGS_X(0);
9395   int y = ED_LEVEL_SETTINGS_Y(6);
9396
9397   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
9398   PrintInfoText(directory_name, font2_nr, x, y);
9399 }
9400
9401 static void DrawLevelConfigLevelSet(void)
9402 {
9403   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
9404   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
9405   int i;
9406
9407   // draw counter gadgets
9408   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
9409     MapCounterButtons(i);
9410
9411   // draw checkbutton gadgets
9412   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
9413   {
9414     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
9415         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
9416         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
9417       continue;
9418
9419     MapCheckbuttonGadget(i);
9420   }
9421
9422   // draw selectbox gadgets
9423   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
9424     MapSelectboxGadget(i);
9425
9426   // draw text input gadgets
9427   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
9428     MapTextInputGadget(i);
9429
9430   // draw textbutton gadgets
9431   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
9432
9433   // draw info text
9434   DrawLevelConfigLevelSet_DirectoryInfo();
9435 }
9436
9437 static void DrawLevelConfigEditor(void)
9438 {
9439   int i;
9440
9441   // draw counter gadgets
9442   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
9443     MapCounterButtons(i);
9444
9445   // draw checkbutton gadgets
9446   for (i=ED_CHECKBUTTON_ID_EDITOR_FIRST; i<= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
9447     MapCheckbuttonGadget(i);
9448
9449   // draw radiobutton gadgets
9450   for (i=ED_RADIOBUTTON_ID_EDITOR_FIRST; i<= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
9451     MapRadiobuttonGadget(i);
9452
9453   // draw drawing area
9454   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
9455
9456   // draw textbutton gadgets
9457   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
9458 }
9459
9460 static void DrawLevelConfigWindow(void)
9461 {
9462   char *text = "Global Settings";
9463   int font_nr = FONT_TITLE_1;
9464   struct MenuPosInfo *pos = &editor.settings.headline;
9465   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
9466   int sy = SY + pos->y;
9467
9468   stick_element_properties_window = FALSE;
9469
9470   SetAutomaticNumberOfGemsNeeded();
9471
9472   UnmapLevelEditorFieldGadgets();
9473
9474   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
9475   ClearField();
9476
9477   DrawText(sx, sy, text, font_nr);
9478
9479   DrawLevelConfigTabulatorGadgets();
9480
9481   if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVEL)
9482     DrawLevelConfigLevel();
9483   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVELSET)
9484     DrawLevelConfigLevelSet();
9485   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_EDITOR)
9486     DrawLevelConfigEditor();
9487 }
9488
9489 static void DrawCustomContentArea(void)
9490 {
9491   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
9492   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
9493   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
9494   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
9495   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
9496   int xoffset = ED_GADGET_SPACE_DISTANCE;
9497
9498   // add distance for potential left text (without drawing area border)
9499   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
9500
9501   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
9502
9503   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
9504 }
9505
9506 static void DrawCustomChangeContentArea(void)
9507 {
9508   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
9509   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
9510   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
9511   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
9512   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
9513   int xoffset = ED_GADGET_SPACE_DISTANCE;
9514
9515   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
9516
9517   MapDrawingArea(id);
9518 }
9519
9520 static void RemoveElementContentArea(int id, int font_height)
9521 {
9522   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9523
9524   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
9525                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
9526                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9527                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
9528                  ED_GADGET_TEXT_DISTANCE + font_height);
9529 }
9530
9531 static void DrawYamYamContentAreas(void)
9532 {
9533   int font_nr = FONT_TEXT_1;
9534   int font_height = getFontHeight(font_nr);
9535   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
9536   int yoffset = (tilesize - font_height) / 2;
9537   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
9538   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
9539   int i;
9540
9541   // display counter to choose number of element content areas
9542   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
9543
9544   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
9545   {
9546     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
9547
9548     if (i < level.num_yamyam_contents)
9549     {
9550       MapDrawingArea(id);
9551     }
9552     else
9553     {
9554       UnmapDrawingArea(id);
9555
9556       // delete content areas in case of reducing number of them
9557       RemoveElementContentArea(id, font_height);
9558     }
9559   }
9560
9561   DrawText(x, y + 0 * tilesize, "content", font_nr);
9562   DrawText(x, y + 1 * tilesize, "when",    font_nr);
9563   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
9564 }
9565
9566 static void DrawMagicBallContentAreas(void)
9567 {
9568   int font_nr = FONT_TEXT_1;
9569   int font_height = getFontHeight(font_nr);
9570   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
9571   int yoffset = (tilesize - font_height) / 2;
9572   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
9573   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
9574   int i;
9575
9576   // display counter to choose number of element content areas
9577   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
9578
9579   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
9580   {
9581     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
9582
9583     if (i < level.num_ball_contents)
9584     {
9585       MapDrawingArea(id);
9586     }
9587     else
9588     {
9589       UnmapDrawingArea(id);
9590
9591       // delete content areas in case of reducing number of them
9592       RemoveElementContentArea(id, font_height);
9593     }
9594   }
9595
9596   DrawText(x, y + 0 * tilesize, "generated", font_nr);
9597   DrawText(x, y + 1 * tilesize, "when",      font_nr);
9598   DrawText(x, y + 2 * tilesize, "active",    font_nr);
9599 }
9600
9601 static void DrawAndroidElementArea(void)
9602 {
9603   int id = ED_DRAWING_ID_ANDROID_CONTENT;
9604   int num_elements = level.num_android_clone_elements;
9605   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9606   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9607   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9608   int xsize = MAX_ANDROID_ELEMENTS;
9609   int ysize = 1;
9610
9611   // display counter to choose number of element areas
9612   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
9613
9614   if (drawingarea_info[id].text_left != NULL)
9615     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9616
9617   UnmapDrawingArea(id);
9618
9619   ModifyEditorDrawingArea(id, num_elements, 1);
9620
9621   // delete content areas in case of reducing number of them
9622   DrawBackground(sx, sy,
9623                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9624                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9625
9626   MapDrawingArea(id);
9627 }
9628
9629 static void DrawGroupElementArea(void)
9630 {
9631   int id = ED_DRAWING_ID_GROUP_CONTENT;
9632   int num_elements = group_element_info.num_elements;
9633   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9634   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9635   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9636   int xsize = MAX_ELEMENTS_IN_GROUP;
9637   int ysize = 1;
9638
9639   if (drawingarea_info[id].text_left != NULL)
9640     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9641
9642   UnmapDrawingArea(id);
9643
9644   ModifyEditorDrawingArea(id, num_elements, 1);
9645
9646   // delete content areas in case of reducing number of them
9647   DrawBackground(sx, sy,
9648                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9649                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9650
9651   MapDrawingArea(id);
9652 }
9653
9654 static void DrawPlayerInitialInventoryArea(int element)
9655 {
9656   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
9657   int player_nr = GET_PLAYER_NR(element);
9658   int num_elements = level.initial_inventory_size[player_nr];
9659   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9660   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9661   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9662   int xsize = MAX_INITIAL_INVENTORY_SIZE;
9663   int ysize = 1;
9664
9665   // determine horizontal position to the right of specified gadget
9666   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
9667     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
9668           ED_DRAWINGAREA_TEXT_DISTANCE);
9669
9670   // determine horizontal offset for leading text
9671   if (drawingarea_info[id].text_left != NULL)
9672     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9673
9674   UnmapDrawingArea(id);
9675
9676   ModifyEditorDrawingArea(id, num_elements, 1);
9677
9678   // delete content areas in case of reducing number of them
9679   DrawBackground(sx, sy,
9680                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9681                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9682
9683   MapDrawingArea(id);
9684 }
9685
9686 static void DrawMMBallContentArea(void)
9687 {
9688   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
9689   int num_elements = level.num_mm_ball_contents;
9690   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9691   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9692   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9693   int xsize = MAX_MM_BALL_CONTENTS;
9694   int ysize = 1;
9695
9696   if (drawingarea_info[id].text_left != NULL)
9697     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9698
9699   UnmapDrawingArea(id);
9700
9701   ModifyEditorDrawingArea(id, num_elements, 1);
9702
9703   // delete content areas in case of reducing number of them
9704   DrawBackground(sx, sy,
9705                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9706                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9707
9708   MapDrawingArea(id);
9709 }
9710
9711 static void DrawEnvelopeTextArea(int envelope_nr)
9712 {
9713   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
9714   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
9715
9716   UnmapGadget(gi);
9717
9718   DrawBackground(gi->x, gi->y,
9719                  gi->textarea.crop_width, gi->textarea.crop_height);
9720
9721   if (envelope_nr != -1)
9722     textarea_info[id].value = level.envelope[envelope_nr].text;
9723
9724   ModifyGadget(gi, GDI_AREA_SIZE,
9725                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
9726                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
9727                GDI_END);
9728
9729   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
9730 }
9731
9732 static void DrawPropertiesInfo(void)
9733 {
9734   static struct
9735   {
9736     int value;
9737     char *text;
9738   }
9739   properties[] =
9740   {
9741     // configurable properties
9742
9743     { EP_WALKABLE_OVER,         "- player can walk over it"             },
9744     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
9745     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
9746     { EP_PASSABLE_OVER,         "- player can pass over it"             },
9747     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
9748     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
9749     { EP_PROTECTED,             "- player is protected by it"           },
9750
9751     { EP_DIGGABLE,              "- can be digged away"                  },
9752     { EP_COLLECTIBLE,           "- can be collected"                    },
9753     { EP_DROPPABLE,             "- can be dropped after collecting"     },
9754     { EP_THROWABLE,             "- can be thrown after collecting"      },
9755     { EP_PUSHABLE,              "- can be pushed"                       },
9756
9757     { EP_CAN_FALL,              "- can fall"                            },
9758     { EP_CAN_MOVE,              "- can move"                            },
9759
9760     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
9761 #if 0
9762     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
9763 #endif
9764     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
9765
9766     { EP_SLIPPERY,              "- slippery for falling elements"       },
9767     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
9768
9769     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
9770     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
9771     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
9772     { EP_DONT_TOUCH,            "- deadly when touching"                },
9773
9774     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
9775
9776     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
9777     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
9778     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
9779
9780     { EP_CAN_CHANGE,            "- can change to other element"         },
9781
9782     // pre-defined properties
9783     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
9784     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
9785     { EP_SWITCHABLE,            "- can be switched"                     },
9786 #if 0
9787     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
9788 #endif
9789
9790     { -1,                       NULL                                    }
9791   };
9792   char *filename = getElementDescriptionFilename(properties_element);
9793   char *num_elements_text = "In this level: ";
9794   char *num_similar_text = "Similar tiles: ";
9795   char *properties_text = "Standard properties: ";
9796   char *description_text = "Description:";
9797   char *no_description_text = "No description available.";
9798   char *none_text = "None";
9799   float percentage;
9800   int num_elements_in_level = 0;
9801   int num_similar_in_level = 0;
9802   int num_hires_tiles_in_level = 0;
9803   int num_standard_properties = 0;
9804   int font1_nr = FONT_TEXT_1;
9805   int font2_nr = FONT_TEXT_2;
9806   int font1_width = getFontWidth(font1_nr);
9807   int font1_height = getFontHeight(font1_nr);
9808   int font2_height = getFontHeight(font2_nr);
9809   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
9810   int font2_yoffset = (font1_height - font2_height) / 2;
9811   int num_elements_text_len = strlen(num_elements_text) * font1_width;
9812   int num_similar_text_len = strlen(num_similar_text) * font1_width;
9813   int properties_text_len = strlen(properties_text) * font1_width;
9814   int xpos = ED_ELEMENT_SETTINGS_X(0);
9815   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
9816   int i, x, y;
9817
9818   if (setup.editor.show_element_token)
9819   {
9820     int font3_nr = FONT_TEXT_3;
9821     int font3_height = getFontHeight(font3_nr);
9822
9823     DrawTextF(xpos, ypos, font3_nr,
9824               "[%s]", element_info[properties_element].token_name);
9825
9826     ypos += 2 * font3_height;
9827   }
9828
9829   // ----- print number of elements / percentage of this element in level
9830
9831   for (y = 0; y < lev_fieldy; y++)
9832   {
9833     for (x = 0; x < lev_fieldx; x++)
9834     {
9835       if (Tile[x][y] == properties_element)
9836       {
9837         num_elements_in_level++;
9838       }
9839       else if (IS_MM_WALL(Tile[x][y]) &&
9840                map_mm_wall_element(Tile[x][y]) == properties_element)
9841       {
9842         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
9843       }
9844     }
9845   }
9846
9847   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
9848
9849   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
9850
9851   if (num_hires_tiles_in_level > 0)
9852     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
9853               "%d wall tiles", num_hires_tiles_in_level);
9854   else if (num_elements_in_level > 0)
9855     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
9856               "%d (%.2f %%)", num_elements_in_level, percentage);
9857   else
9858     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
9859               none_text);
9860
9861   // ----- print number of similar elements / percentage of them in level
9862
9863   for (y = 0; y < lev_fieldy; y++)
9864   {
9865     for (x = 0; x < lev_fieldx; x++)
9866     {
9867       if (strEqual(element_info[Tile[x][y]].class_name,
9868                    element_info[properties_element].class_name))
9869       {
9870         num_similar_in_level++;
9871       }
9872     }
9873   }
9874
9875   if (num_similar_in_level != num_elements_in_level)
9876   {
9877     ypos += 1 * MAX(font1_height, font2_height);
9878
9879     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
9880
9881     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
9882
9883     if (num_similar_in_level > 0)
9884       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
9885                 "%d (%.2f %%)", num_similar_in_level, percentage);
9886     else
9887       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
9888                 none_text);
9889   }
9890
9891   ypos += 2 * MAX(font1_height, font2_height);
9892
9893   // ----- print standard properties of this element
9894
9895   DrawTextS(xpos, ypos, font1_nr, properties_text);
9896
9897   ypos += line1_height;
9898
9899   for (i = 0; properties[i].value != -1; i++)
9900   {
9901     if (!HAS_PROPERTY(properties_element, properties[i].value))
9902       continue;
9903
9904     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
9905
9906     ypos += font2_height;
9907
9908     num_standard_properties++;
9909   }
9910
9911   if (num_standard_properties == 0)
9912   {
9913     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
9914               font2_nr, none_text);
9915
9916     ypos -= (line1_height - font1_height);
9917   }
9918
9919   ypos += MAX(font1_height, font2_height);
9920
9921   // ----- print special description of this element
9922
9923   PrintInfoText(description_text, font1_nr, xpos, ypos);
9924
9925   ypos += line1_height;
9926
9927   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
9928     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
9929 }
9930
9931 #define TEXT_COLLECTING         "Score for collecting"
9932 #define TEXT_SMASHING           "Score for smashing"
9933 #define TEXT_SLURPING           "Score for slurping robot"
9934 #define TEXT_CRACKING           "Score for cracking"
9935 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
9936 #define TEXT_DURATION           "Duration when activated"
9937 #define TEXT_DELAY_ON           "Delay before activating"
9938 #define TEXT_DELAY_OFF          "Delay before deactivating"
9939 #define TEXT_DELAY_CHANGING     "Delay before changing"
9940 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
9941 #define TEXT_DELAY_MOVING       "Delay before moving"
9942 #define TEXT_BALL_DELAY         "Element generation delay"
9943 #define TEXT_MOVE_SPEED         "Speed of android moving"
9944 #define TEXT_CLONE_SPEED        "Speed of android cloning"
9945 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
9946 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
9947 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
9948 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
9949 #define TEXT_TIME_BONUS         "Extra time to solve level"
9950
9951 static struct
9952 {
9953   int element;
9954   int *value;
9955   char *text;
9956 } elements_with_counter[] =
9957 {
9958   { EL_EMERALD,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
9959   { EL_BD_DIAMOND,      &level.score[SC_EMERALD],       TEXT_COLLECTING },
9960   { EL_EMERALD_YELLOW,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
9961   { EL_EMERALD_RED,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
9962   { EL_EMERALD_PURPLE,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
9963   { EL_SP_INFOTRON,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
9964   { EL_DIAMOND,         &level.score[SC_DIAMOND],       TEXT_COLLECTING },
9965   { EL_CRYSTAL,         &level.score[SC_CRYSTAL],       TEXT_COLLECTING },
9966   { EL_PEARL,           &level.score[SC_PEARL],         TEXT_COLLECTING },
9967   { EL_BUG,             &level.score[SC_BUG],           TEXT_SMASHING   },
9968   { EL_BUG_RIGHT,       &level.score[SC_BUG],           TEXT_SMASHING   },
9969   { EL_BUG_UP,          &level.score[SC_BUG],           TEXT_SMASHING   },
9970   { EL_BUG_LEFT,        &level.score[SC_BUG],           TEXT_SMASHING   },
9971   { EL_BUG_DOWN,        &level.score[SC_BUG],           TEXT_SMASHING   },
9972   { EL_BD_BUTTERFLY,    &level.score[SC_BUG],           TEXT_SMASHING   },
9973   { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_BUG],         TEXT_SMASHING   },
9974   { EL_BD_BUTTERFLY_UP,   &level.score[SC_BUG],         TEXT_SMASHING   },
9975   { EL_BD_BUTTERFLY_LEFT, &level.score[SC_BUG],         TEXT_SMASHING   },
9976   { EL_BD_BUTTERFLY_DOWN, &level.score[SC_BUG],         TEXT_SMASHING   },
9977   { EL_SP_ELECTRON,     &level.score[SC_BUG],           TEXT_SMASHING   },
9978   { EL_SPACESHIP,       &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9979   { EL_SPACESHIP_RIGHT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9980   { EL_SPACESHIP_UP,    &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9981   { EL_SPACESHIP_LEFT,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9982   { EL_SPACESHIP_DOWN,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9983   { EL_BD_FIREFLY,      &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9984   { EL_BD_FIREFLY_RIGHT,&level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9985   { EL_BD_FIREFLY_UP,   &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9986   { EL_BD_FIREFLY_LEFT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9987   { EL_BD_FIREFLY_DOWN, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9988   { EL_SP_SNIKSNAK,     &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9989   { EL_YAMYAM,          &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9990   { EL_YAMYAM_LEFT,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9991   { EL_YAMYAM_RIGHT,    &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9992   { EL_YAMYAM_UP,       &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9993   { EL_YAMYAM_DOWN,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9994   { EL_DARK_YAMYAM,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9995   { EL_ROBOT,           &level.score[SC_ROBOT],         TEXT_SMASHING   },
9996   { EL_PACMAN,          &level.score[SC_PACMAN],        TEXT_SMASHING   },
9997   { EL_PACMAN_RIGHT,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
9998   { EL_PACMAN_UP,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
9999   { EL_PACMAN_LEFT,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
10000   { EL_PACMAN_DOWN,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
10001   { EL_NUT,             &level.score[SC_NUT],           TEXT_CRACKING   },
10002   { EL_DYNAMITE,        &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
10003   { EL_EM_DYNAMITE,     &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
10004   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE], TEXT_COLLECTING },
10005   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE], TEXT_COLLECTING },
10006   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE], TEXT_COLLECTING },
10007   { EL_SHIELD_NORMAL,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
10008   { EL_SHIELD_DEADLY,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
10009   { EL_EXTRA_TIME,      &level.extra_time_score,        TEXT_COLLECTING },
10010   { EL_KEY_1,           &level.score[SC_KEY],           TEXT_COLLECTING },
10011   { EL_KEY_2,           &level.score[SC_KEY],           TEXT_COLLECTING },
10012   { EL_KEY_3,           &level.score[SC_KEY],           TEXT_COLLECTING },
10013   { EL_KEY_4,           &level.score[SC_KEY],           TEXT_COLLECTING },
10014   { EL_EM_KEY_1,        &level.score[SC_KEY],           TEXT_COLLECTING },
10015   { EL_EM_KEY_2,        &level.score[SC_KEY],           TEXT_COLLECTING },
10016   { EL_EM_KEY_3,        &level.score[SC_KEY],           TEXT_COLLECTING },
10017   { EL_EM_KEY_4,        &level.score[SC_KEY],           TEXT_COLLECTING },
10018   { EL_EMC_KEY_5,       &level.score[SC_KEY],           TEXT_COLLECTING },
10019   { EL_EMC_KEY_6,       &level.score[SC_KEY],           TEXT_COLLECTING },
10020   { EL_EMC_KEY_7,       &level.score[SC_KEY],           TEXT_COLLECTING },
10021   { EL_EMC_KEY_8,       &level.score[SC_KEY],           TEXT_COLLECTING },
10022   { EL_DC_KEY_WHITE,    &level.score[SC_KEY],           TEXT_COLLECTING },
10023   { EL_MM_KETTLE,       &level.score[SC_EMERALD],       TEXT_COLLECTING },
10024   { EL_DF_CELL,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
10025   { EL_MM_KEY,          &level.score[SC_KEY],           TEXT_COLLECTING },
10026   { EL_MM_LIGHTBALL,    &level.score[SC_ELEM_BONUS],    TEXT_COLLECTING },
10027   { EL_MM_PACMAN,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
10028   { EL_MM_PACMAN_RIGHT, &level.score[SC_PACMAN],        TEXT_SMASHING   },
10029   { EL_MM_PACMAN_UP,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
10030   { EL_MM_PACMAN_LEFT,  &level.score[SC_PACMAN],        TEXT_SMASHING   },
10031   { EL_MM_PACMAN_DOWN,  &level.score[SC_PACMAN],        TEXT_SMASHING   },
10032   { EL_AMOEBA_WET,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
10033   { EL_AMOEBA_DRY,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
10034   { EL_AMOEBA_FULL,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
10035   { EL_BD_AMOEBA,       &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
10036   { EL_EMC_DRIPPER,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
10037   { EL_MAGIC_WALL,      &level.time_magic_wall,         TEXT_DURATION   },
10038   { EL_BD_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
10039   { EL_DC_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
10040   { EL_ROBOT_WHEEL,     &level.time_wheel,              TEXT_DURATION   },
10041
10042   { EL_TIMEGATE_SWITCH,   &level.time_timegate,         TEXT_DURATION   },
10043   { EL_DC_TIMEGATE_SWITCH,&level.time_timegate,         TEXT_DURATION   },
10044   { EL_LIGHT_SWITCH,    &level.time_light,              TEXT_DURATION   },
10045   { EL_LIGHT_SWITCH_ACTIVE, &level.time_light,          TEXT_DURATION   },
10046   { EL_SHIELD_NORMAL,   &level.shield_normal_time,      TEXT_DURATION   },
10047   { EL_SHIELD_DEADLY,   &level.shield_deadly_time,      TEXT_DURATION   },
10048   { EL_EXTRA_TIME,      &level.extra_time,              TEXT_TIME_BONUS },
10049   { EL_TIME_ORB_FULL,   &level.time_orb_time,           TEXT_TIME_BONUS },
10050   { EL_GAME_OF_LIFE,    &level.game_of_life[0],         TEXT_GAME_OF_LIFE_1 },
10051   { EL_GAME_OF_LIFE,    &level.game_of_life[1],         TEXT_GAME_OF_LIFE_2 },
10052   { EL_GAME_OF_LIFE,    &level.game_of_life[2],         TEXT_GAME_OF_LIFE_3 },
10053   { EL_GAME_OF_LIFE,    &level.game_of_life[3],         TEXT_GAME_OF_LIFE_4 },
10054   { EL_BIOMAZE,         &level.biomaze[0],              TEXT_GAME_OF_LIFE_1 },
10055   { EL_BIOMAZE,         &level.biomaze[1],              TEXT_GAME_OF_LIFE_2 },
10056   { EL_BIOMAZE,         &level.biomaze[2],              TEXT_GAME_OF_LIFE_3 },
10057   { EL_BIOMAZE,         &level.biomaze[3],              TEXT_GAME_OF_LIFE_4 },
10058
10059   { EL_EMC_ANDROID,     &level.android_move_time,       TEXT_MOVE_SPEED },
10060   { EL_EMC_ANDROID,     &level.android_clone_time,      TEXT_CLONE_SPEED },
10061   { EL_EMC_MAGIC_BALL,  &level.ball_time,               TEXT_BALL_DELAY },
10062   { EL_EMC_LENSES,      &level.lenses_score,            TEXT_COLLECTING },
10063   { EL_EMC_MAGNIFIER,   &level.magnify_score,           TEXT_COLLECTING },
10064   { EL_SPRING,          &level.slurp_score,             TEXT_SLURPING   },
10065   { EL_SPRING_LEFT,     &level.slurp_score,             TEXT_SLURPING   },
10066   { EL_SPRING_RIGHT,    &level.slurp_score,             TEXT_SLURPING   },
10067   { EL_EMC_LENSES,      &level.lenses_time,             TEXT_DURATION   },
10068   { EL_EMC_MAGNIFIER,   &level.magnify_time,            TEXT_DURATION   },
10069   { EL_MM_FUSE_ACTIVE,  &level.mm_time_fuse,            TEXT_DELAY_OFF  },
10070   { EL_MM_BOMB,         &level.mm_time_bomb,            TEXT_DELAY_EXPLODING },
10071   { EL_MM_GRAY_BALL,    &level.mm_time_ball,            TEXT_DELAY_CHANGING },
10072   { EL_MM_STEEL_BLOCK,  &level.mm_time_block,           TEXT_DELAY_MOVING },
10073   { EL_MM_WOODEN_BLOCK, &level.mm_time_block,           TEXT_DELAY_MOVING },
10074
10075   { -1,                 NULL,                           NULL            }
10076 };
10077
10078 static boolean checkPropertiesConfig(int element)
10079 {
10080   int i;
10081
10082   if (IS_GEM(element) ||
10083       IS_CUSTOM_ELEMENT(element) ||
10084       IS_GROUP_ELEMENT(element) ||
10085       IS_EMPTY_ELEMENT(element) ||
10086       IS_BALLOON_ELEMENT(element) ||
10087       IS_ENVELOPE(element) ||
10088       IS_MM_ENVELOPE(element) ||
10089       IS_MM_MCDUFFIN(element) ||
10090       IS_DF_LASER(element) ||
10091       IS_PLAYER_ELEMENT(element) ||
10092       HAS_EDITOR_CONTENT(element) ||
10093       CAN_GROW(element) ||
10094       COULD_MOVE_INTO_ACID(element) ||
10095       MAYBE_DONT_COLLIDE_WITH(element) ||
10096       element == EL_SOKOBAN_OBJECT ||
10097       element == EL_SOKOBAN_FIELD_EMPTY ||
10098       element == EL_SOKOBAN_FIELD_FULL)
10099     return TRUE;
10100   else
10101     for (i = 0; elements_with_counter[i].element != -1; i++)
10102       if (elements_with_counter[i].element == element)
10103         return TRUE;
10104
10105   return FALSE;
10106 }
10107
10108 static void SetAutomaticNumberOfGemsNeeded(void)
10109 {
10110   int x, y;
10111
10112   if (!level.auto_count_gems)
10113     return;
10114
10115   level.gems_needed = 0;
10116
10117   for (x = 0; x < lev_fieldx; x++)
10118   {
10119     for (y = 0; y < lev_fieldy; y++)
10120     {
10121       int element = Tile[x][y];
10122
10123       switch (element)
10124       {
10125         case EL_EMERALD:
10126         case EL_EMERALD_YELLOW:
10127         case EL_EMERALD_RED:
10128         case EL_EMERALD_PURPLE:
10129         case EL_BD_DIAMOND:
10130         case EL_WALL_EMERALD:
10131         case EL_WALL_EMERALD_YELLOW:
10132         case EL_WALL_EMERALD_RED:
10133         case EL_WALL_EMERALD_PURPLE:
10134         case EL_WALL_BD_DIAMOND:
10135         case EL_NUT:
10136         case EL_SP_INFOTRON:
10137         case EL_MM_KETTLE:
10138         case EL_DF_CELL:
10139           level.gems_needed++;
10140           break;
10141
10142         case EL_DIAMOND:
10143         case EL_WALL_DIAMOND:
10144           level.gems_needed += 3;
10145           break;
10146
10147         case EL_PEARL:
10148         case EL_WALL_PEARL:
10149           level.gems_needed += 5;
10150           break;
10151
10152         case EL_CRYSTAL:
10153         case EL_WALL_CRYSTAL:
10154           level.gems_needed += 8;
10155           break;
10156
10157         default:
10158           break;
10159       }
10160     }
10161   }
10162
10163   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
10164 }
10165
10166 static void DrawPropertiesConfig(void)
10167 {
10168   boolean draw_footer_line = FALSE;
10169   int max_num_element_counters = 4;
10170   int num_element_counters = 0;
10171   int i;
10172
10173   if (!checkPropertiesConfig(properties_element))
10174   {
10175     int xpos = ED_ELEMENT_SETTINGS_X(0);
10176     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10177
10178     PrintInfoText("No configuration options available.",
10179                   FONT_TEXT_1, xpos, ypos);
10180
10181     return;
10182   }
10183
10184   // check if there are elements where a value can be chosen for
10185   for (i = 0; elements_with_counter[i].element != -1; i++)
10186   {
10187     if (elements_with_counter[i].element == properties_element)
10188     {
10189       int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
10190
10191       counterbutton_info[counter_id].y =
10192         ED_ELEMENT_SETTINGS_YPOS(
10193                 (HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
10194                 (CAN_GROW(properties_element)                ? 1 : 0) +
10195                 (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
10196                 (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
10197                 (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
10198                 num_element_counters);
10199
10200       counterbutton_info[counter_id].value = elements_with_counter[i].value;
10201       counterbutton_info[counter_id].text_right= elements_with_counter[i].text;
10202
10203       if (properties_element == EL_GAME_OF_LIFE ||
10204           properties_element == EL_BIOMAZE)
10205       {
10206         counterbutton_info[counter_id].min_value = 0;   // min neighbours
10207         counterbutton_info[counter_id].max_value = 8;   // max neighbours
10208       }
10209       else
10210       {
10211         // !!! CHANGE THIS FOR CERTAIN ELEMENTS !!!
10212         counterbutton_info[counter_id].min_value = MIN_SCORE;
10213         counterbutton_info[counter_id].max_value = MAX_SCORE;
10214       }
10215
10216       MapCounterButtons(counter_id);
10217
10218       num_element_counters++;
10219       if (num_element_counters >= max_num_element_counters)
10220         break;
10221     }
10222   }
10223
10224   if (HAS_EDITOR_CONTENT(properties_element))
10225   {
10226     // draw stickybutton gadget
10227     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10228
10229     if (IS_AMOEBOID(properties_element))
10230       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
10231     else if (properties_element == EL_YAMYAM ||
10232              properties_element == EL_YAMYAM_LEFT ||
10233              properties_element == EL_YAMYAM_RIGHT ||
10234              properties_element == EL_YAMYAM_UP ||
10235              properties_element == EL_YAMYAM_DOWN)
10236       DrawYamYamContentAreas();
10237     else if (properties_element == EL_EMC_MAGIC_BALL)
10238     {
10239       DrawMagicBallContentAreas();
10240
10241       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
10242       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
10243     }
10244     else if (properties_element == EL_EMC_ANDROID)
10245       DrawAndroidElementArea();
10246     else if (properties_element == EL_MM_GRAY_BALL)
10247     {
10248       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
10249       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
10250       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
10251       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
10252
10253       DrawMMBallContentArea();
10254     }
10255   }
10256
10257   if (IS_PLAYER_ELEMENT(properties_element))
10258   {
10259     int player_nr = GET_PLAYER_NR(properties_element);
10260
10261     // these properties can be set for every player individually
10262
10263     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
10264     {
10265       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
10266         &level.start_element[player_nr];
10267       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
10268         &level.artwork_element[player_nr];
10269       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
10270         &level.explosion_element[player_nr];
10271
10272       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
10273         &level.use_start_element[player_nr];
10274       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
10275         &level.use_artwork_element[player_nr];
10276       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
10277         &level.use_explosion_element[player_nr];
10278       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
10279         &level.initial_player_gravity[player_nr];
10280
10281       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
10282         &level.initial_player_stepsize[player_nr];
10283
10284       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
10285       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
10286                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
10287                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
10288       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
10289       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
10290       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
10291       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
10292       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
10293       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
10294       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
10295       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
10296       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
10297       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
10298       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
10299
10300       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
10301       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
10302       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
10303
10304       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
10305     }
10306     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
10307     {
10308       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
10309         &level.initial_inventory_content[player_nr][0];
10310
10311       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
10312         &level.initial_inventory_size[player_nr];
10313
10314       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
10315         &level.use_initial_inventory[player_nr];
10316
10317       // draw checkbutton gadgets
10318       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
10319       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
10320       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
10321
10322       // draw counter gadgets
10323       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
10324
10325       // draw drawing area gadgets
10326       DrawPlayerInitialInventoryArea(properties_element);
10327     }
10328   }
10329
10330   if (IS_GEM(properties_element))
10331     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
10332
10333   if (properties_element == EL_EM_DYNAMITE)
10334     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
10335
10336   if (COULD_MOVE_INTO_ACID(properties_element) &&
10337       !IS_PLAYER_ELEMENT(properties_element) &&
10338       (!IS_CUSTOM_ELEMENT(properties_element) ||
10339        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
10340   {
10341     // set position for checkbutton for "can move into acid"
10342     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
10343       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
10344     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
10345       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
10346                                IS_BALLOON_ELEMENT(properties_element) ||
10347                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
10348
10349     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
10350   }
10351
10352   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
10353     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
10354
10355   if (properties_element == EL_SPRING ||
10356       properties_element == EL_SPRING_LEFT ||
10357       properties_element == EL_SPRING_RIGHT)
10358     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
10359
10360   if (properties_element == EL_TIME_ORB_FULL)
10361     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
10362
10363   if (properties_element == EL_GAME_OF_LIFE ||
10364       properties_element == EL_BIOMAZE)
10365     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
10366
10367   if (CAN_GROW(properties_element))
10368   {
10369     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
10370       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
10371
10372     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
10373   }
10374
10375   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
10376     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
10377
10378   if (properties_element == EL_SOKOBAN_OBJECT)
10379     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
10380
10381   if (properties_element == EL_SOKOBAN_OBJECT ||
10382       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
10383       properties_element == EL_SOKOBAN_FIELD_FULL)
10384   {
10385     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
10386       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
10387                                0 : 1);
10388
10389     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
10390   }
10391
10392   if (IS_BALLOON_ELEMENT(properties_element))
10393     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
10394
10395   if (IS_ENVELOPE(properties_element) ||
10396       IS_MM_ENVELOPE(properties_element))
10397   {
10398     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
10399     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
10400     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
10401     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
10402     int envelope_nr = ENVELOPE_NR(properties_element);
10403
10404     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
10405     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
10406
10407     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
10408     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
10409
10410     // display counter to choose size of envelope text area
10411     MapCounterButtons(counter1_id);
10412     MapCounterButtons(counter2_id);
10413
10414     // display checkbuttons to choose auto-wrap and alignment properties
10415     MapCheckbuttonGadget(button1_id);
10416     MapCheckbuttonGadget(button2_id);
10417
10418     DrawEnvelopeTextArea(envelope_nr);
10419   }
10420
10421   if (IS_MM_MCDUFFIN(properties_element))
10422   {
10423     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
10424     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
10425     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
10426   }
10427
10428   if (IS_DF_LASER(properties_element))
10429   {
10430     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
10431     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
10432     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
10433   }
10434
10435   if (IS_CUSTOM_ELEMENT(properties_element))
10436   {
10437     // draw stickybutton gadget
10438     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10439
10440     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
10441     {
10442       // draw checkbutton gadgets
10443       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
10444            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
10445         MapCheckbuttonGadget(i);
10446
10447       // draw counter gadgets
10448       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
10449            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
10450         MapCounterButtons(i);
10451
10452       // draw selectbox gadgets
10453       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
10454            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
10455         MapSelectboxGadget(i);
10456
10457       // draw textbutton gadgets
10458       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10459
10460       // draw text input gadgets
10461       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
10462
10463       // draw drawing area gadgets
10464       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10465
10466       draw_footer_line = TRUE;
10467     }
10468     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
10469     {
10470       // draw checkbutton gadgets
10471       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
10472            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
10473         MapCheckbuttonGadget(i);
10474
10475       // draw counter gadgets
10476       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
10477            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
10478         MapCounterButtons(i);
10479
10480       // draw selectbox gadgets
10481       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
10482            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
10483         MapSelectboxGadget(i);
10484
10485       // draw drawing area gadgets
10486       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
10487       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
10488       DrawCustomContentArea();
10489     }
10490   }
10491   else if (IS_GROUP_ELEMENT(properties_element))
10492   {
10493     // draw stickybutton gadget
10494     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10495
10496     // draw checkbutton gadgets
10497     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
10498     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
10499
10500     // draw counter gadgets
10501     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
10502
10503     // draw selectbox gadgets
10504     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
10505
10506     // draw textbutton gadgets
10507     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10508
10509     // draw drawing area gadgets
10510     DrawGroupElementArea();
10511
10512     // draw text input gadgets
10513     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
10514
10515     // draw drawing area gadgets
10516     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10517
10518     draw_footer_line = TRUE;
10519   }
10520   else if (IS_EMPTY_ELEMENT(properties_element))
10521   {
10522     // draw stickybutton gadget
10523     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10524
10525     // draw checkbutton gadgets
10526     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
10527     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
10528
10529     // draw textbutton gadgets
10530     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10531
10532     // draw drawing area gadgets
10533     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10534
10535     draw_footer_line = TRUE;
10536   }
10537
10538   // draw little footer border line above CE/GE use/save template gadgets
10539   if (draw_footer_line)
10540   {
10541     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10542     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10543     int gd_x = gd->x + gd_gi1->border.width / 2;
10544     int gd_y = gd->y + gd_gi1->height - 1;
10545     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10546
10547     if (tab_color != BLACK_PIXEL)               // black => transparent
10548       FillRectangle(drawto,
10549                     SX + ED_ELEMENT_SETTINGS_X(0),
10550                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
10551                     ED_TAB_BAR_HEIGHT,
10552                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10553   }
10554 }
10555
10556 static void DrawPropertiesChangeDrawingAreas(void)
10557 {
10558   if (IS_CUSTOM_ELEMENT(properties_element))
10559   {
10560     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
10561     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
10562     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
10563
10564     DrawCustomChangeContentArea();
10565   }
10566
10567   redraw_mask |= REDRAW_FIELD;
10568 }
10569
10570 static void DrawPropertiesChange(void)
10571 {
10572   int i;
10573
10574   // needed to initially set selectbox options for special action options
10575   setSelectboxSpecialActionOptions();
10576
10577   // draw stickybutton gadget
10578   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10579
10580   // draw checkbutton gadgets
10581   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
10582        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
10583     MapCheckbuttonGadget(i);
10584
10585   // draw counter gadgets
10586   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
10587        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
10588     MapCounterButtons(i);
10589
10590   // draw selectbox gadgets
10591   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
10592        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
10593     MapSelectboxGadget(i);
10594
10595   // draw textbutton gadgets
10596   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
10597        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
10598     MapTextbuttonGadget(i);
10599
10600   // draw graphicbutton gadgets
10601   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
10602        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
10603     MapGraphicbuttonGadget(i);
10604
10605   // draw drawing area gadgets
10606   DrawPropertiesChangeDrawingAreas();
10607 }
10608
10609 static void DrawEditorElementAnimation(int x, int y)
10610 {
10611   int graphic = el2img(properties_element);
10612   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
10613                custom_element.ce_value_fixed_initial :
10614                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
10615                custom_element.collect_score_initial : FrameCounter);
10616
10617   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
10618 }
10619
10620 static void DrawEditorElementName(int x, int y, int font_nr)
10621 {
10622   char *element_name = getElementInfoText(properties_element);
10623   int font_width = getFontWidth(font_nr);
10624   int font_height = getFontHeight(font_nr);
10625   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
10626   int max_chars_per_line = max_text_width / font_width;
10627
10628   if (strlen(element_name) <= max_chars_per_line)
10629     DrawTextS(x, y, font_nr, element_name);
10630   else
10631   {
10632     char buffer[max_chars_per_line + 1];
10633     int next_pos = max_chars_per_line;
10634
10635     strncpy(buffer, element_name, max_chars_per_line);
10636     buffer[max_chars_per_line] = '\0';
10637
10638     if (element_name[max_chars_per_line] == ' ')
10639       next_pos++;
10640     else
10641     {
10642       int i;
10643
10644       for (i = max_chars_per_line - 1; i >= 0; i--)
10645         if (buffer[i] == ' ')
10646           break;
10647
10648       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
10649       {
10650         buffer[i] = '\0';
10651         next_pos = i + 1;
10652       }
10653     }
10654
10655     DrawTextS(x, y - font_height / 2, font_nr, buffer);
10656
10657     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
10658     buffer[max_chars_per_line] = '\0';
10659
10660     DrawTextS(x, y + font_height / 2, font_nr, buffer);
10661   }
10662 }
10663
10664 static void DrawPropertiesWindow(void)
10665 {
10666   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
10667   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
10668   int border_size = gd->border_size;
10669   int font_nr = FONT_TEXT_1;
10670   int font_height = getFontHeight(font_nr);
10671   int xoffset = TILEX + element_border + 3 * border_size;
10672   int yoffset = (TILEY - font_height) / 2;
10673   int x1 = editor.settings.element_graphic.x + element_border;
10674   int y1 = editor.settings.element_graphic.y + element_border;
10675   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
10676             editor.settings.element_name.x);
10677   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
10678             editor.settings.element_name.y);
10679   char *text = "Element Settings";
10680   int font2_nr = FONT_TITLE_1;
10681   struct MenuPosInfo *pos = &editor.settings.headline;
10682   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
10683   int sy = SY + pos->y;
10684
10685   stick_element_properties_window = FALSE;
10686
10687   // make sure that previous properties edit mode exists for this element
10688   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
10689       !IS_CUSTOM_ELEMENT(properties_element))
10690     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
10691
10692   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
10693       !IS_PLAYER_ELEMENT(properties_element) &&
10694       !IS_CUSTOM_ELEMENT(properties_element))
10695     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
10696
10697   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
10698       (IS_PLAYER_ELEMENT(properties_element) ||
10699        IS_CUSTOM_ELEMENT(properties_element)))
10700     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
10701
10702   CopyElementPropertiesToEditor(properties_element);
10703
10704   UnmapLevelEditorFieldGadgets();
10705   UnmapLevelEditorToolboxDrawingGadgets();
10706   UnmapLevelEditorToolboxCustomGadgets();
10707
10708   MapLevelEditorToolboxCustomGadgetsIfNeeded();
10709
10710   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10711   ClearField();
10712
10713   DrawText(sx, sy, text, font2_nr);
10714
10715   FrameCounter = 0;     // restart animation frame counter
10716
10717   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
10718   DrawEditorElementAnimation(SX + x1, SY + y1);
10719   DrawEditorElementName(x2, y2, font_nr);
10720
10721   DrawPropertiesTabulatorGadgets();
10722
10723   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
10724     DrawPropertiesInfo();
10725   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
10726     DrawPropertiesChange();
10727   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
10728     DrawPropertiesConfig();
10729 }
10730
10731 static void DrawPaletteWindow(void)
10732 {
10733   int i;
10734
10735   UnmapLevelEditorFieldGadgets();
10736
10737   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10738   ClearField();
10739
10740   // map buttons to select elements
10741   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
10742     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
10743   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
10744   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
10745   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
10746 }
10747
10748 static void UpdateCustomElementGraphicGadgets(void)
10749 {
10750   int i;
10751
10752   InitElementPropertiesGfxElement();
10753
10754   ModifyEditorElementList();
10755   RedrawDrawingElements();
10756
10757   // force redraw of all mapped drawing area gadgets
10758   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
10759   {
10760     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
10761
10762     if (gi->mapped)
10763       MapDrawingArea(i);
10764   }
10765 }
10766
10767 static int getOpenDirectionFromTube(int element)
10768 {
10769   switch (element)
10770   {
10771     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
10772     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
10773     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
10774     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
10775     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
10776     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
10777     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
10778     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
10779     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
10780     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
10781     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
10782   }
10783
10784   return MV_NONE;
10785 }
10786
10787 static int getTubeFromOpenDirection(int direction)
10788 {
10789   switch (direction)
10790   {
10791     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
10792     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
10793     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
10794     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
10795     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
10796     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
10797     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
10798     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
10799     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
10800     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
10801     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
10802
10803     // if only one direction, fall back to simple tube with that direction
10804     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
10805     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
10806     case (MV_UP):                       return EL_TUBE_VERTICAL;
10807     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
10808   }
10809
10810   return EL_EMPTY;
10811 }
10812
10813 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
10814 {
10815   int element_new = getTubeFromOpenDirection(direction);
10816
10817   return (element_new != EL_EMPTY ? element_new : element_old);
10818 }
10819
10820 static int getOpenDirectionFromBelt(int element)
10821 {
10822   int belt_dir = getBeltDirFromBeltElement(element);
10823
10824   return (belt_dir == MV_LEFT ? MV_RIGHT :
10825           belt_dir == MV_RIGHT ? MV_LEFT :
10826           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
10827 }
10828
10829 static int getBeltFromNrAndOpenDirection(int nr, int direction)
10830 {
10831   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
10832                   direction == MV_RIGHT ? MV_LEFT :
10833                   direction == MV_HORIZONTAL ? MV_NONE : direction);
10834
10835   if (direction == MV_NONE)
10836     return EL_EMPTY;
10837
10838   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
10839 }
10840
10841 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
10842                                                  int element_old)
10843 {
10844   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
10845
10846   return (element_new != EL_EMPTY ? element_new : element_old);
10847 }
10848
10849 static int getOpenDirectionFromPool(int element)
10850 {
10851   switch (element)
10852   {
10853     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
10854     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
10855     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
10856     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
10857     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
10858     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
10859   }
10860
10861   return MV_NONE;
10862 }
10863
10864 static int getPoolFromOpenDirection(int direction)
10865 {
10866   switch (direction)
10867   {
10868     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
10869     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
10870     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
10871     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
10872     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
10873     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
10874   }
10875
10876   return EL_EMPTY;
10877 }
10878
10879 static int getPoolFromOpenDirectionExt(int direction, int help_element)
10880 {
10881   int element = getPoolFromOpenDirection(direction);
10882   int help_direction = getOpenDirectionFromPool(help_element);
10883
10884   if (element == EL_EMPTY)
10885   {
10886     int help_direction_vertical = help_direction & MV_VERTICAL;
10887
10888     element = getPoolFromOpenDirection(direction | help_direction_vertical);
10889   }
10890
10891   if (element == EL_EMPTY)
10892   {
10893     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
10894
10895     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
10896   }
10897
10898   return element;
10899 }
10900
10901 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
10902 {
10903   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
10904
10905   return (element_new != EL_EMPTY ? element_new : element_old);
10906 }
10907
10908 static int getOpenDirectionFromPillar(int element)
10909 {
10910   switch (element)
10911   {
10912     case EL_EMC_WALL_1:                 return (MV_DOWN);
10913     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
10914     case EL_EMC_WALL_3:                 return (MV_UP);
10915   }
10916
10917   return MV_NONE;
10918 }
10919
10920 static int getPillarFromOpenDirection(int direction)
10921 {
10922   switch (direction)
10923   {
10924     case (MV_DOWN):                     return EL_EMC_WALL_1;
10925     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
10926     case (MV_UP):                       return EL_EMC_WALL_3;
10927   }
10928
10929   return EL_EMPTY;
10930 }
10931
10932 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
10933 {
10934   int element_new = getPillarFromOpenDirection(direction);
10935
10936   return (element_new != EL_EMPTY ? element_new : element_old);
10937 }
10938
10939 static int getOpenDirectionFromSteel2(int element)
10940 {
10941   switch (element)
10942   {
10943     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
10944     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
10945     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
10946     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
10947     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
10948     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
10949     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
10950     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
10951   }
10952
10953   return MV_NONE;
10954 }
10955
10956 static int getSteel2FromOpenDirection(int direction)
10957 {
10958   switch (direction)
10959   {
10960     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
10961     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
10962     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
10963     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
10964     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
10965     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
10966     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
10967     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
10968   }
10969
10970   return EL_EMPTY;
10971 }
10972
10973 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
10974 {
10975   int element_new = getSteel2FromOpenDirection(direction);
10976
10977   return (element_new != EL_EMPTY ? element_new : element_old);
10978 }
10979
10980 static int getOpenDirectionFromChip(int element)
10981 {
10982   switch (element)
10983   {
10984     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
10985     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
10986     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
10987     case EL_SP_CHIP_TOP:                return (MV_DOWN);
10988     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
10989   }
10990
10991   return MV_NONE;
10992 }
10993
10994 static int getChipFromOpenDirection(int direction)
10995 {
10996   switch (direction)
10997   {
10998     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
10999     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
11000     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
11001     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
11002     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
11003   }
11004
11005   return EL_EMPTY;
11006 }
11007
11008 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
11009 {
11010   int element_new = getChipFromOpenDirection(direction);
11011
11012   return (element_new != EL_EMPTY ? element_new : element_old);
11013 }
11014
11015 static int getClosedTube(int x, int y)
11016 {
11017   struct XY *xy = xy_directions;
11018   int element_old = IntelliDrawBuffer[x][y];
11019   int direction_old = getOpenDirectionFromTube(element_old);
11020   int direction_new = MV_NONE;
11021   int i;
11022
11023   for (i = 0; i < NUM_DIRECTIONS; i++)
11024   {
11025     int xx = x + xy[i].x;
11026     int yy = y + xy[i].y;
11027     int dir = MV_DIR_FROM_BIT(i);
11028     int dir_opposite = MV_DIR_OPPOSITE(dir);
11029
11030     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
11031         (direction_old & dir) &&
11032         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11033       direction_new |= dir;
11034   }
11035
11036   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
11037 }
11038
11039 static int getClosedBelt(int x, int y)
11040 {
11041   struct XY *xy = xy_directions;
11042   int element_old = IntelliDrawBuffer[x][y];
11043   int nr = getBeltNrFromBeltElement(element_old);
11044   int direction_old = getOpenDirectionFromBelt(element_old);
11045   int direction_new = MV_NONE;
11046   int i;
11047
11048   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
11049   {
11050     int xx = x + xy[i].x;
11051     int yy = y + xy[i].y;
11052     int dir = MV_DIR_FROM_BIT(i);
11053     int dir_opposite = MV_DIR_OPPOSITE(dir);
11054
11055     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
11056         (direction_old & dir) &&
11057         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11058       direction_new |= dir;
11059   }
11060
11061   return getBeltFromNrAndOpenDirection(nr, direction_new);
11062 }
11063
11064 static int getClosedPool(int x, int y)
11065 {
11066   struct XY *xy = xy_directions;
11067   int element_old = IntelliDrawBuffer[x][y];
11068   int direction_old = getOpenDirectionFromPool(element_old);
11069   int direction_new = MV_NONE;
11070   int i;
11071
11072   for (i = 0; i < NUM_DIRECTIONS; i++)
11073   {
11074     int xx = x + xy[i].x;
11075     int yy = y + xy[i].y;
11076     int dir = MV_DIR_FROM_BIT(i);
11077     int dir_opposite = MV_DIR_OPPOSITE(dir);
11078
11079     if (IN_LEV_FIELD(xx, yy) &&
11080         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
11081         (direction_old & dir) &&
11082         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11083       direction_new |= dir;
11084   }
11085
11086   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
11087 }
11088
11089 static int getClosedPillar(int x, int y)
11090 {
11091   struct XY *xy = xy_directions;
11092   int element_old = IntelliDrawBuffer[x][y];
11093   int direction_old = getOpenDirectionFromPillar(element_old);
11094   int direction_new = MV_NONE;
11095   int i;
11096
11097   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
11098   {
11099     int xx = x + xy[i].x;
11100     int yy = y + xy[i].y;
11101     int dir = MV_DIR_FROM_BIT(i);
11102     int dir_opposite = MV_DIR_OPPOSITE(dir);
11103
11104     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
11105         (direction_old & dir) &&
11106         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11107       direction_new |= dir;
11108   }
11109
11110   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
11111 }
11112
11113 static int getClosedSteel2(int x, int y)
11114 {
11115   struct XY *xy = xy_directions;
11116   int element_old = IntelliDrawBuffer[x][y];
11117   int direction_old = getOpenDirectionFromSteel2(element_old);
11118   int direction_new = MV_NONE;
11119   int i;
11120
11121   for (i = 0; i < NUM_DIRECTIONS; i++)
11122   {
11123     int xx = x + xy[i].x;
11124     int yy = y + xy[i].y;
11125     int dir = MV_DIR_FROM_BIT(i);
11126     int dir_opposite = MV_DIR_OPPOSITE(dir);
11127
11128     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
11129         (direction_old & dir) &&
11130         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11131       direction_new |= dir;
11132   }
11133
11134   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
11135 }
11136
11137 static int getClosedChip(int x, int y)
11138 {
11139   struct XY *xy = xy_directions;
11140   int element_old = IntelliDrawBuffer[x][y];
11141   int direction_old = getOpenDirectionFromChip(element_old);
11142   int direction_new = MV_NONE;
11143   int i;
11144
11145   for (i = 0; i < NUM_DIRECTIONS; i++)
11146   {
11147     int xx = x + xy[i].x;
11148     int yy = y + xy[i].y;
11149     int dir = MV_DIR_FROM_BIT(i);
11150     int dir_opposite = MV_DIR_OPPOSITE(dir);
11151
11152     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
11153         (direction_old & dir) &&
11154         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11155       direction_new |= dir;
11156   }
11157
11158   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
11159 }
11160
11161 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
11162                                 boolean change_level)
11163 {
11164   int sx = x - level_xpos;
11165   int sy = y - level_ypos;
11166   int old_element = Tile[x][y];
11167   int new_element = element;
11168   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
11169   boolean draw_masked = FALSE;
11170
11171   if (IS_MM_WALL_EDITOR(element))
11172   {
11173     element = map_mm_wall_element_editor(element) | new_bitmask;
11174
11175     if (IS_MM_WALL(old_element))
11176       element |= MM_WALL_BITS(old_element);
11177
11178     if (!change_level)
11179       draw_masked = TRUE;
11180   }
11181   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
11182   {
11183     int element_changed = old_element & ~new_bitmask;
11184
11185     if (MM_WALL_BITS(element_changed) != 0)
11186       element = element_changed;
11187   }
11188
11189   IntelliDrawBuffer[x][y] = element;
11190
11191   if (change_level)
11192     Tile[x][y] = element;
11193
11194   if (IN_ED_FIELD(sx, sy))
11195   {
11196     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
11197       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
11198     else if (draw_masked)
11199       DrawEditorElementThruMask(sx, sy, element);
11200     else
11201       DrawEditorElement(sx, sy, element);
11202   }
11203 }
11204
11205 static void SetElementSimple(int x, int y, int element, boolean change_level)
11206 {
11207   SetElementSimpleExt(x, y, 0, 0, element, change_level);
11208 }
11209
11210 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
11211                                            int x2, int y2, int *element2,
11212                                            int (*close_function)(int, int),
11213                                            boolean change_level)
11214 {
11215   // set neighbour elements to newly determined connections
11216   SetElementSimple(x1, y1, *element1, change_level);
11217   SetElementSimple(x2, y2, *element2, change_level);
11218
11219   // remove all open connections of neighbour elements
11220   *element1 = close_function(x1, y1);
11221   *element2 = close_function(x2, y2);
11222
11223   // set neighbour elements to new, minimized connections
11224   SetElementSimple(x1, y1, *element1, change_level);
11225   SetElementSimple(x2, y2, *element2, change_level);
11226 }
11227
11228 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
11229                                   boolean change_level, int button)
11230 {
11231   struct XY *xy = xy_directions;
11232   static int last_x = -1;
11233   static int last_y = -1;
11234
11235   if (new_element == EL_UNDEFINED)
11236   {
11237     last_x = -1;
11238     last_y = -1;
11239
11240     return;
11241   }
11242
11243   int old_element = IntelliDrawBuffer[x][y];
11244
11245   if (IS_TUBE(new_element))
11246   {
11247     int last_element_new = EL_UNDEFINED;
11248     int direction = MV_NONE;
11249     int i;
11250
11251     // if old element is of same kind, keep all existing directions
11252     if (IS_TUBE(old_element))
11253       direction |= getOpenDirectionFromTube(old_element);
11254
11255     for (i = 0; i < NUM_DIRECTIONS; i++)
11256     {
11257       int xx = x + xy[i].x;
11258       int yy = y + xy[i].y;
11259
11260       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11261           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
11262       {
11263         int dir = MV_DIR_FROM_BIT(i);
11264         int dir_opposite = MV_DIR_OPPOSITE(dir);
11265         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11266         int last_direction_old = getOpenDirectionFromTube(last_element_old);
11267         int last_direction_new = last_direction_old | dir_opposite;
11268
11269         last_element_new = getTubeFromOpenDirection(last_direction_new);
11270
11271         direction |= dir;
11272       }
11273     }
11274
11275     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
11276
11277     if (last_element_new != EL_UNDEFINED)
11278       MergeAndCloseNeighbourElements(x, y, &new_element,
11279                                      last_x, last_y, &last_element_new,
11280                                      getClosedTube, change_level);
11281   }
11282   else if (IS_BELT(new_element))
11283   {
11284     int belt_nr = getBeltNrFromBeltElement(new_element);
11285     int last_element_new = EL_UNDEFINED;
11286     int direction = MV_NONE;
11287     int i;
11288
11289     // if old element is of same kind, keep all existing directions
11290     if (IS_BELT(old_element))
11291       direction |= getOpenDirectionFromBelt(old_element);
11292
11293     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
11294     {
11295       int xx = x + xy[i].x;
11296       int yy = y + xy[i].y;
11297
11298       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11299           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
11300       {
11301         int dir = MV_DIR_FROM_BIT(i);
11302         int dir_opposite = MV_DIR_OPPOSITE(dir);
11303         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11304         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
11305         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
11306         int last_direction_new = last_direction_old | dir_opposite;
11307
11308         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
11309                                                          last_direction_new);
11310         direction |= dir;
11311       }
11312     }
11313
11314     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
11315                                                         new_element);
11316     if (last_element_new != EL_UNDEFINED)
11317       MergeAndCloseNeighbourElements(x, y, &new_element,
11318                                      last_x, last_y, &last_element_new,
11319                                      getClosedBelt, change_level);
11320   }
11321   else if (IS_ACID_POOL_OR_ACID(new_element))
11322   {
11323     int last_element_new = EL_UNDEFINED;
11324     int direction = MV_NONE;
11325     int i;
11326
11327     // if old element is of same kind, keep all existing directions
11328     if (IS_ACID_POOL_OR_ACID(old_element))
11329       direction |= getOpenDirectionFromPool(old_element);
11330
11331     for (i = 0; i < NUM_DIRECTIONS; i++)
11332     {
11333       int xx = x + xy[i].x;
11334       int yy = y + xy[i].y;
11335
11336       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11337           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
11338       {
11339         int dir = MV_DIR_FROM_BIT(i);
11340         int dir_opposite = MV_DIR_OPPOSITE(dir);
11341         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11342         int last_direction_old = getOpenDirectionFromPool(last_element_old);
11343         int last_direction_new = last_direction_old | dir_opposite;
11344
11345         last_element_new = getPoolFromOpenDirection(last_direction_new);
11346
11347         direction |= dir;
11348       }
11349     }
11350
11351     // special corrections needed for intuitively correct acid pool drawing
11352     if (last_element_new == EL_EMPTY)
11353       last_element_new = new_element;
11354     else if (last_element_new != EL_UNDEFINED)
11355       new_element = last_element_new;
11356
11357     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
11358
11359     if (last_element_new != EL_UNDEFINED)
11360       MergeAndCloseNeighbourElements(x, y, &new_element,
11361                                      last_x, last_y, &last_element_new,
11362                                      getClosedPool, change_level);
11363   }
11364   else if (IS_EMC_PILLAR(new_element))
11365   {
11366     int last_element_new = EL_UNDEFINED;
11367     int direction = MV_NONE;
11368     int i;
11369
11370     // if old element is of same kind, keep all existing directions
11371     if (IS_EMC_PILLAR(old_element))
11372       direction |= getOpenDirectionFromPillar(old_element);
11373
11374     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
11375     {
11376       int xx = x + xy[i].x;
11377       int yy = y + xy[i].y;
11378
11379       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11380           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
11381       {
11382         int dir = MV_DIR_FROM_BIT(i);
11383         int dir_opposite = MV_DIR_OPPOSITE(dir);
11384         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11385         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
11386         int last_direction_new = last_direction_old | dir_opposite;
11387
11388         last_element_new = getPillarFromOpenDirection(last_direction_new);
11389
11390         direction |= dir;
11391       }
11392     }
11393
11394     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
11395
11396     if (last_element_new != EL_UNDEFINED)
11397       MergeAndCloseNeighbourElements(x, y, &new_element,
11398                                      last_x, last_y, &last_element_new,
11399                                      getClosedPillar, change_level);
11400   }
11401   else if (IS_DC_STEELWALL_2(new_element))
11402   {
11403     int last_element_new = EL_UNDEFINED;
11404     int direction = MV_NONE;
11405     int i;
11406
11407     // if old element is of same kind, keep all existing directions
11408     if (IS_DC_STEELWALL_2(old_element))
11409       direction |= getOpenDirectionFromSteel2(old_element);
11410
11411     for (i = 0; i < NUM_DIRECTIONS; i++)
11412     {
11413       int xx = x + xy[i].x;
11414       int yy = y + xy[i].y;
11415
11416       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11417           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
11418       {
11419         int dir = MV_DIR_FROM_BIT(i);
11420         int dir_opposite = MV_DIR_OPPOSITE(dir);
11421         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11422         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
11423         int last_direction_new = last_direction_old | dir_opposite;
11424
11425         last_element_new = getSteel2FromOpenDirection(last_direction_new);
11426
11427         direction |= dir;
11428       }
11429     }
11430
11431     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
11432
11433     if (last_element_new != EL_UNDEFINED)
11434       MergeAndCloseNeighbourElements(x, y, &new_element,
11435                                      last_x, last_y, &last_element_new,
11436                                      getClosedSteel2, change_level);
11437   }
11438   else if (IS_SP_CHIP(new_element))
11439   {
11440     int last_element_new = EL_UNDEFINED;
11441     int direction = MV_NONE;
11442     int i;
11443
11444     // (do not keep existing directions, regardless of kind of old element)
11445
11446     for (i = 0; i < NUM_DIRECTIONS; i++)
11447     {
11448       int xx = x + xy[i].x;
11449       int yy = y + xy[i].y;
11450
11451       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11452           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
11453       {
11454         int dir = MV_DIR_FROM_BIT(i);
11455         int dir_opposite = MV_DIR_OPPOSITE(dir);
11456         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11457         int last_direction_old = getOpenDirectionFromChip(last_element_old);
11458         int last_direction_new = last_direction_old | dir_opposite;
11459
11460         if (last_direction_old == MV_NONE)
11461         {
11462           last_element_new = getChipFromOpenDirection(last_direction_new);
11463           direction |= dir;
11464         }
11465         else if (last_direction_old & (dir | dir_opposite))
11466         {
11467           direction |= MV_DIR_OPPOSITE(last_direction_old);
11468         }
11469         else
11470         {
11471           direction |= MV_DIR_OPPOSITE(dir);
11472         }
11473       }
11474     }
11475
11476     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
11477
11478     if (last_element_new != EL_UNDEFINED)
11479       MergeAndCloseNeighbourElements(x, y, &new_element,
11480                                      last_x, last_y, &last_element_new,
11481                                      getClosedChip, change_level);
11482   }
11483   else if (IS_SP_HARDWARE_BASE(new_element))
11484   {
11485     int nr = GetSimpleRandom(6);
11486
11487     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
11488                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
11489                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
11490                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
11491                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
11492   }
11493   else if (new_element == EL_SP_HARDWARE_GREEN ||
11494            new_element == EL_SP_HARDWARE_BLUE ||
11495            new_element == EL_SP_HARDWARE_RED)
11496   {
11497     int nr = GetSimpleRandom(3);
11498
11499     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
11500                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
11501   }
11502   else if (IS_GROUP_ELEMENT(new_element))
11503   {
11504     boolean connected_drawing = FALSE;
11505     int i;
11506
11507     for (i = 0; i < NUM_DIRECTIONS; i++)
11508     {
11509       int xx = x + xy[i].x;
11510       int yy = y + xy[i].y;
11511
11512       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11513           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
11514         connected_drawing = TRUE;
11515     }
11516
11517     if (!connected_drawing)
11518       ResolveGroupElement(new_element);
11519
11520     new_element = GetElementFromGroupElement(new_element);
11521   }
11522   else if (IS_BELT_SWITCH(old_element))
11523   {
11524     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
11525     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
11526
11527     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
11528                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
11529
11530     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
11531   }
11532   else
11533   {
11534     static int swappable_elements[][2] =
11535     {
11536       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
11537       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
11538       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
11539       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
11540       { EL_EMERALD,                     EL_WALL_EMERALD                 },
11541       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
11542       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
11543       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
11544       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
11545       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
11546       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
11547       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
11548       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
11549       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
11550       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
11551       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
11552       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
11553       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
11554       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
11555       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
11556       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
11557       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
11558       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
11559       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
11560       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
11561       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
11562       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
11563       { EL_PEARL,                       EL_WALL_PEARL                   },
11564       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
11565       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
11566       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
11567       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
11568       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
11569       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
11570       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
11571       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
11572       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
11573       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
11574       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
11575       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
11576       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
11577       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
11578       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
11579       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
11580
11581       { -1,                             -1                              },
11582     };
11583     static int rotatable_elements_4[][4] =
11584     {
11585       {
11586         EL_BUG_UP,
11587         EL_BUG_RIGHT,
11588         EL_BUG_DOWN,
11589         EL_BUG_LEFT
11590       },
11591       {
11592         EL_SPACESHIP_UP,
11593         EL_SPACESHIP_RIGHT,
11594         EL_SPACESHIP_DOWN,
11595         EL_SPACESHIP_LEFT
11596       },
11597       {
11598         EL_BD_BUTTERFLY_UP,
11599         EL_BD_BUTTERFLY_RIGHT,
11600         EL_BD_BUTTERFLY_DOWN,
11601         EL_BD_BUTTERFLY_LEFT
11602       },
11603       {
11604         EL_BD_FIREFLY_UP,
11605         EL_BD_FIREFLY_RIGHT,
11606         EL_BD_FIREFLY_DOWN,
11607         EL_BD_FIREFLY_LEFT
11608       },
11609       {
11610         EL_PACMAN_UP,
11611         EL_PACMAN_RIGHT,
11612         EL_PACMAN_DOWN,
11613         EL_PACMAN_LEFT
11614       },
11615       {
11616         EL_YAMYAM_UP,
11617         EL_YAMYAM_RIGHT,
11618         EL_YAMYAM_DOWN,
11619         EL_YAMYAM_LEFT
11620       },
11621       {
11622         EL_ARROW_UP,
11623         EL_ARROW_RIGHT,
11624         EL_ARROW_DOWN,
11625         EL_ARROW_LEFT
11626       },
11627       {
11628         EL_SP_PORT_UP,
11629         EL_SP_PORT_RIGHT,
11630         EL_SP_PORT_DOWN,
11631         EL_SP_PORT_LEFT
11632       },
11633       {
11634         EL_SP_GRAVITY_PORT_UP,
11635         EL_SP_GRAVITY_PORT_RIGHT,
11636         EL_SP_GRAVITY_PORT_DOWN,
11637         EL_SP_GRAVITY_PORT_LEFT
11638       },
11639       {
11640         EL_SP_GRAVITY_ON_PORT_UP,
11641         EL_SP_GRAVITY_ON_PORT_RIGHT,
11642         EL_SP_GRAVITY_ON_PORT_DOWN,
11643         EL_SP_GRAVITY_ON_PORT_LEFT
11644       },
11645       {
11646         EL_SP_GRAVITY_OFF_PORT_UP,
11647         EL_SP_GRAVITY_OFF_PORT_RIGHT,
11648         EL_SP_GRAVITY_OFF_PORT_DOWN,
11649         EL_SP_GRAVITY_OFF_PORT_LEFT
11650       },
11651       {
11652         EL_MOLE_UP,
11653         EL_MOLE_RIGHT,
11654         EL_MOLE_DOWN,
11655         EL_MOLE_LEFT
11656       },
11657       {
11658         EL_BALLOON_SWITCH_UP,
11659         EL_BALLOON_SWITCH_RIGHT,
11660         EL_BALLOON_SWITCH_DOWN,
11661         EL_BALLOON_SWITCH_LEFT
11662       },
11663       {
11664         EL_MM_MCDUFFIN_UP,
11665         EL_MM_MCDUFFIN_RIGHT,
11666         EL_MM_MCDUFFIN_DOWN,
11667         EL_MM_MCDUFFIN_LEFT
11668       },
11669       {
11670         EL_MM_MIRROR_FIXED_1,
11671         EL_MM_MIRROR_FIXED_4,
11672         EL_MM_MIRROR_FIXED_3,
11673         EL_MM_MIRROR_FIXED_2
11674       },
11675       {
11676         EL_MM_STEEL_GRID_FIXED_1,
11677         EL_MM_STEEL_GRID_FIXED_4,
11678         EL_MM_STEEL_GRID_FIXED_2,
11679         EL_MM_STEEL_GRID_FIXED_3
11680       },
11681       {
11682         EL_MM_WOODEN_GRID_FIXED_1,
11683         EL_MM_WOODEN_GRID_FIXED_4,
11684         EL_MM_WOODEN_GRID_FIXED_2,
11685         EL_MM_WOODEN_GRID_FIXED_3
11686       },
11687       {
11688         EL_MM_POLARIZER_CROSS_1,
11689         EL_MM_POLARIZER_CROSS_4,
11690         EL_MM_POLARIZER_CROSS_3,
11691         EL_MM_POLARIZER_CROSS_2
11692       },
11693       {
11694         EL_MM_PACMAN_UP,
11695         EL_MM_PACMAN_RIGHT,
11696         EL_MM_PACMAN_DOWN,
11697         EL_MM_PACMAN_LEFT
11698       },
11699       {
11700         EL_DF_LASER_UP,
11701         EL_DF_LASER_RIGHT,
11702         EL_DF_LASER_DOWN,
11703         EL_DF_LASER_LEFT
11704       },
11705       {
11706         EL_DF_RECEIVER_UP,
11707         EL_DF_RECEIVER_RIGHT,
11708         EL_DF_RECEIVER_DOWN,
11709         EL_DF_RECEIVER_LEFT
11710       },
11711       {
11712         EL_DF_SLOPE_1,
11713         EL_DF_SLOPE_4,
11714         EL_DF_SLOPE_3,
11715         EL_DF_SLOPE_2
11716       },
11717
11718       {
11719         -1,
11720       },
11721     };
11722     static int rotatable_elements_8[][8] =
11723     {
11724       {
11725         EL_DF_STEEL_GRID_FIXED_1,
11726         EL_DF_STEEL_GRID_FIXED_8,
11727         EL_DF_STEEL_GRID_FIXED_7,
11728         EL_DF_STEEL_GRID_FIXED_6,
11729         EL_DF_STEEL_GRID_FIXED_5,
11730         EL_DF_STEEL_GRID_FIXED_4,
11731         EL_DF_STEEL_GRID_FIXED_3,
11732         EL_DF_STEEL_GRID_FIXED_2
11733       },
11734       {
11735         EL_DF_WOODEN_GRID_FIXED_1,
11736         EL_DF_WOODEN_GRID_FIXED_8,
11737         EL_DF_WOODEN_GRID_FIXED_7,
11738         EL_DF_WOODEN_GRID_FIXED_6,
11739         EL_DF_WOODEN_GRID_FIXED_5,
11740         EL_DF_WOODEN_GRID_FIXED_4,
11741         EL_DF_WOODEN_GRID_FIXED_3,
11742         EL_DF_WOODEN_GRID_FIXED_2
11743       },
11744       {
11745         EL_DF_STEEL_GRID_ROTATING_1,
11746         EL_DF_STEEL_GRID_ROTATING_8,
11747         EL_DF_STEEL_GRID_ROTATING_7,
11748         EL_DF_STEEL_GRID_ROTATING_6,
11749         EL_DF_STEEL_GRID_ROTATING_5,
11750         EL_DF_STEEL_GRID_ROTATING_4,
11751         EL_DF_STEEL_GRID_ROTATING_3,
11752         EL_DF_STEEL_GRID_ROTATING_2
11753       },
11754       {
11755         EL_DF_WOODEN_GRID_ROTATING_1,
11756         EL_DF_WOODEN_GRID_ROTATING_8,
11757         EL_DF_WOODEN_GRID_ROTATING_7,
11758         EL_DF_WOODEN_GRID_ROTATING_6,
11759         EL_DF_WOODEN_GRID_ROTATING_5,
11760         EL_DF_WOODEN_GRID_ROTATING_4,
11761         EL_DF_WOODEN_GRID_ROTATING_3,
11762         EL_DF_WOODEN_GRID_ROTATING_2
11763       },
11764
11765       {
11766         -1,
11767       },
11768     };
11769     static int rotatable_elements_16[][16] =
11770     {
11771       {
11772         EL_MM_MIRROR_1,
11773         EL_MM_MIRROR_16,
11774         EL_MM_MIRROR_15,
11775         EL_MM_MIRROR_14,
11776         EL_MM_MIRROR_13,
11777         EL_MM_MIRROR_12,
11778         EL_MM_MIRROR_11,
11779         EL_MM_MIRROR_10,
11780         EL_MM_MIRROR_9,
11781         EL_MM_MIRROR_8,
11782         EL_MM_MIRROR_7,
11783         EL_MM_MIRROR_6,
11784         EL_MM_MIRROR_5,
11785         EL_MM_MIRROR_4,
11786         EL_MM_MIRROR_3,
11787         EL_MM_MIRROR_2
11788       },
11789       {
11790         EL_MM_TELEPORTER_5,
11791         EL_MM_TELEPORTER_4,
11792         EL_MM_TELEPORTER_3,
11793         EL_MM_TELEPORTER_2,
11794         EL_MM_TELEPORTER_1,
11795         EL_MM_TELEPORTER_16,
11796         EL_MM_TELEPORTER_15,
11797         EL_MM_TELEPORTER_14,
11798         EL_MM_TELEPORTER_13,
11799         EL_MM_TELEPORTER_12,
11800         EL_MM_TELEPORTER_11,
11801         EL_MM_TELEPORTER_10,
11802         EL_MM_TELEPORTER_9,
11803         EL_MM_TELEPORTER_8,
11804         EL_MM_TELEPORTER_7,
11805         EL_MM_TELEPORTER_6
11806       },
11807       {
11808         EL_MM_TELEPORTER_RED_5,
11809         EL_MM_TELEPORTER_RED_4,
11810         EL_MM_TELEPORTER_RED_3,
11811         EL_MM_TELEPORTER_RED_2,
11812         EL_MM_TELEPORTER_RED_1,
11813         EL_MM_TELEPORTER_RED_16,
11814         EL_MM_TELEPORTER_RED_15,
11815         EL_MM_TELEPORTER_RED_14,
11816         EL_MM_TELEPORTER_RED_13,
11817         EL_MM_TELEPORTER_RED_12,
11818         EL_MM_TELEPORTER_RED_11,
11819         EL_MM_TELEPORTER_RED_10,
11820         EL_MM_TELEPORTER_RED_9,
11821         EL_MM_TELEPORTER_RED_8,
11822         EL_MM_TELEPORTER_RED_7,
11823         EL_MM_TELEPORTER_RED_6
11824       },
11825       {
11826         EL_MM_TELEPORTER_YELLOW_5,
11827         EL_MM_TELEPORTER_YELLOW_4,
11828         EL_MM_TELEPORTER_YELLOW_3,
11829         EL_MM_TELEPORTER_YELLOW_2,
11830         EL_MM_TELEPORTER_YELLOW_1,
11831         EL_MM_TELEPORTER_YELLOW_16,
11832         EL_MM_TELEPORTER_YELLOW_15,
11833         EL_MM_TELEPORTER_YELLOW_14,
11834         EL_MM_TELEPORTER_YELLOW_13,
11835         EL_MM_TELEPORTER_YELLOW_12,
11836         EL_MM_TELEPORTER_YELLOW_11,
11837         EL_MM_TELEPORTER_YELLOW_10,
11838         EL_MM_TELEPORTER_YELLOW_9,
11839         EL_MM_TELEPORTER_YELLOW_8,
11840         EL_MM_TELEPORTER_YELLOW_7,
11841         EL_MM_TELEPORTER_YELLOW_6
11842       },
11843       {
11844         EL_MM_TELEPORTER_GREEN_5,
11845         EL_MM_TELEPORTER_GREEN_4,
11846         EL_MM_TELEPORTER_GREEN_3,
11847         EL_MM_TELEPORTER_GREEN_2,
11848         EL_MM_TELEPORTER_GREEN_1,
11849         EL_MM_TELEPORTER_GREEN_16,
11850         EL_MM_TELEPORTER_GREEN_15,
11851         EL_MM_TELEPORTER_GREEN_14,
11852         EL_MM_TELEPORTER_GREEN_13,
11853         EL_MM_TELEPORTER_GREEN_12,
11854         EL_MM_TELEPORTER_GREEN_11,
11855         EL_MM_TELEPORTER_GREEN_10,
11856         EL_MM_TELEPORTER_GREEN_9,
11857         EL_MM_TELEPORTER_GREEN_8,
11858         EL_MM_TELEPORTER_GREEN_7,
11859         EL_MM_TELEPORTER_GREEN_6
11860       },
11861       {
11862         EL_MM_TELEPORTER_BLUE_5,
11863         EL_MM_TELEPORTER_BLUE_4,
11864         EL_MM_TELEPORTER_BLUE_3,
11865         EL_MM_TELEPORTER_BLUE_2,
11866         EL_MM_TELEPORTER_BLUE_1,
11867         EL_MM_TELEPORTER_BLUE_16,
11868         EL_MM_TELEPORTER_BLUE_15,
11869         EL_MM_TELEPORTER_BLUE_14,
11870         EL_MM_TELEPORTER_BLUE_13,
11871         EL_MM_TELEPORTER_BLUE_12,
11872         EL_MM_TELEPORTER_BLUE_11,
11873         EL_MM_TELEPORTER_BLUE_10,
11874         EL_MM_TELEPORTER_BLUE_9,
11875         EL_MM_TELEPORTER_BLUE_8,
11876         EL_MM_TELEPORTER_BLUE_7,
11877         EL_MM_TELEPORTER_BLUE_6
11878       },
11879       {
11880         EL_MM_POLARIZER_1,
11881         EL_MM_POLARIZER_16,
11882         EL_MM_POLARIZER_15,
11883         EL_MM_POLARIZER_14,
11884         EL_MM_POLARIZER_13,
11885         EL_MM_POLARIZER_12,
11886         EL_MM_POLARIZER_11,
11887         EL_MM_POLARIZER_10,
11888         EL_MM_POLARIZER_9,
11889         EL_MM_POLARIZER_8,
11890         EL_MM_POLARIZER_7,
11891         EL_MM_POLARIZER_6,
11892         EL_MM_POLARIZER_5,
11893         EL_MM_POLARIZER_4,
11894         EL_MM_POLARIZER_3,
11895         EL_MM_POLARIZER_2
11896       },
11897       {
11898         EL_DF_MIRROR_1,
11899         EL_DF_MIRROR_16,
11900         EL_DF_MIRROR_15,
11901         EL_DF_MIRROR_14,
11902         EL_DF_MIRROR_13,
11903         EL_DF_MIRROR_12,
11904         EL_DF_MIRROR_11,
11905         EL_DF_MIRROR_10,
11906         EL_DF_MIRROR_9,
11907         EL_DF_MIRROR_8,
11908         EL_DF_MIRROR_7,
11909         EL_DF_MIRROR_6,
11910         EL_DF_MIRROR_5,
11911         EL_DF_MIRROR_4,
11912         EL_DF_MIRROR_3,
11913         EL_DF_MIRROR_2
11914       },
11915       {
11916         EL_DF_MIRROR_ROTATING_1,
11917         EL_DF_MIRROR_ROTATING_16,
11918         EL_DF_MIRROR_ROTATING_15,
11919         EL_DF_MIRROR_ROTATING_14,
11920         EL_DF_MIRROR_ROTATING_13,
11921         EL_DF_MIRROR_ROTATING_12,
11922         EL_DF_MIRROR_ROTATING_11,
11923         EL_DF_MIRROR_ROTATING_10,
11924         EL_DF_MIRROR_ROTATING_9,
11925         EL_DF_MIRROR_ROTATING_8,
11926         EL_DF_MIRROR_ROTATING_7,
11927         EL_DF_MIRROR_ROTATING_6,
11928         EL_DF_MIRROR_ROTATING_5,
11929         EL_DF_MIRROR_ROTATING_4,
11930         EL_DF_MIRROR_ROTATING_3,
11931         EL_DF_MIRROR_ROTATING_2
11932       },
11933       {
11934         EL_DF_MIRROR_FIXED_1,
11935         EL_DF_MIRROR_FIXED_16,
11936         EL_DF_MIRROR_FIXED_15,
11937         EL_DF_MIRROR_FIXED_14,
11938         EL_DF_MIRROR_FIXED_13,
11939         EL_DF_MIRROR_FIXED_12,
11940         EL_DF_MIRROR_FIXED_11,
11941         EL_DF_MIRROR_FIXED_10,
11942         EL_DF_MIRROR_FIXED_9,
11943         EL_DF_MIRROR_FIXED_8,
11944         EL_DF_MIRROR_FIXED_7,
11945         EL_DF_MIRROR_FIXED_6,
11946         EL_DF_MIRROR_FIXED_5,
11947         EL_DF_MIRROR_FIXED_4,
11948         EL_DF_MIRROR_FIXED_3,
11949         EL_DF_MIRROR_FIXED_2
11950       },
11951
11952       {
11953         -1,
11954       },
11955     };
11956     int i, j;
11957
11958     for (i = 0; swappable_elements[i][0] != -1; i++)
11959     {
11960       int element1 = swappable_elements[i][0];
11961       int element2 = swappable_elements[i][1];
11962
11963       if (old_element == element1 || old_element == element2)
11964         new_element = (old_element == element1 ? element2 : element1);
11965     }
11966
11967     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
11968     {
11969       for (j = 0; j < 4; j++)
11970       {
11971         int element = rotatable_elements_4[i][j];
11972
11973         if (old_element == element)
11974           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
11975                          button == 2 ? rotatable_elements_4[i][0]           :
11976                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
11977                          old_element);
11978       }
11979     }
11980
11981     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
11982     {
11983       for (j = 0; j < 8; j++)
11984       {
11985         int element = rotatable_elements_8[i][j];
11986
11987         if (old_element == element)
11988           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
11989                          button == 2 ? rotatable_elements_8[i][0]           :
11990                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
11991                          old_element);
11992       }
11993     }
11994
11995     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
11996     {
11997       for (j = 0; j < 16; j++)
11998       {
11999         int element = rotatable_elements_16[i][j];
12000
12001         if (old_element == element)
12002           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
12003                          button == 2 ? rotatable_elements_16[i][0]             :
12004                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
12005                          old_element);
12006       }
12007     }
12008
12009     if (old_element != new_element)
12010     {
12011       int max_infotext_len = getMaxInfoTextLength();
12012       char infotext[MAX_OUTPUT_LINESIZE + 1];
12013
12014       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
12015       infotext[max_infotext_len] = '\0';
12016
12017       ClearEditorGadgetInfoText();
12018
12019       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
12020                 infotext);
12021     }
12022   }
12023
12024   if (IS_MM_WALL_EDITOR(new_element))
12025     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
12026   else
12027     SetElementSimple(x, y, new_element, change_level);
12028
12029   last_x = x;
12030   last_y = y;
12031 }
12032
12033 static void ResetIntelliDraw(void)
12034 {
12035   int x, y;
12036
12037   for (x = 0; x < lev_fieldx; x++)
12038     for (y = 0; y < lev_fieldy; y++)
12039       IntelliDrawBuffer[x][y] = Tile[x][y];
12040
12041   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
12042 }
12043
12044 static boolean draw_mode_hires = FALSE;
12045
12046 static boolean isHiresTileElement(int element)
12047 {
12048   return (IS_MM_WALL(element)        || element == EL_EMPTY);
12049 }
12050
12051 static boolean isHiresDrawElement(int element)
12052 {
12053   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
12054 }
12055
12056 static int numHiresTiles(int element)
12057 {
12058   if (IS_MM_WALL(element))
12059     return get_number_of_bits(MM_WALL_BITS(element));
12060
12061   return 1;
12062 }
12063
12064 static void SetDrawModeHiRes(int element)
12065 {
12066   draw_mode_hires =
12067     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
12068      isHiresDrawElement(element));
12069 }
12070
12071 static boolean getDrawModeHiRes(void)
12072 {
12073   return draw_mode_hires;
12074 }
12075
12076 static int getLoResScreenPos(int pos)
12077 {
12078   return (getDrawModeHiRes() ? pos / 2 : pos);
12079 }
12080
12081 static int getLoResScreenMod(int pos)
12082 {
12083   return (getDrawModeHiRes() ? pos % 2 : 0);
12084 }
12085
12086 static void SetElementExt(int x, int y, int dx, int dy, int element,
12087                           boolean change_level, int button)
12088 {
12089   if (element < 0)
12090     SetElementSimple(x, y, Tile[x][y], change_level);
12091   else if (GetKeyModState() & KMOD_Shift)
12092     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
12093   else
12094     SetElementSimpleExt(x, y, dx, dy, element, change_level);
12095 }
12096
12097 static void SetElement(int x, int y, int element)
12098 {
12099   SetElementExt(x, y, 0, 0, element, TRUE, -1);
12100 }
12101
12102 static void SetElementButton(int x, int y, int dx, int dy, int element,
12103                              int button)
12104 {
12105   SetElementExt(x, y, dx, dy, element, TRUE, button);
12106 }
12107
12108 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
12109 {
12110   int lx = getLoResScreenPos(sx2) + level_xpos;
12111   int ly = getLoResScreenPos(sy2) + level_ypos;
12112   int dx = getLoResScreenMod(sx2);
12113   int dy = getLoResScreenMod(sy2);
12114
12115   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
12116 }
12117
12118 static void SetLevelElementHiRes(int lx2, int ly2, int element)
12119 {
12120   int lx = lx2 / 2;
12121   int ly = ly2 / 2;
12122   int dx = lx2 % 2;
12123   int dy = ly2 % 2;
12124
12125   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
12126 }
12127
12128 static int getLevelElementHiRes(int lx2, int ly2)
12129 {
12130   int lx = lx2 / 2;
12131   int ly = ly2 / 2;
12132   int dx = lx2 % 2;
12133   int dy = ly2 % 2;
12134   int element = Tile[lx][ly];
12135   unsigned int bitmask = (dx + 1) << (dy * 2);
12136
12137   if (IS_MM_WALL(element))
12138   {
12139     if (element & bitmask)
12140       return map_mm_wall_element(element);
12141     else
12142       return EL_EMPTY;
12143   }
12144
12145   return element;
12146 }
12147
12148 static void DrawLineElement(int x, int y, int element, boolean change_level)
12149 {
12150   SetElementHiRes(x, y, element, change_level);
12151 }
12152
12153 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
12154                      int element, boolean change_level)
12155 {
12156   int xsize = ABS(to_x - from_x);
12157   int ysize = ABS(to_y - from_y);
12158   int dx = (to_x < from_x ? -1 : +1);
12159   int dy = (to_y < from_y ? -1 : +1);
12160   int i;
12161
12162   if (from_y == to_y)                   // horizontal line
12163   {
12164     for (i = 0; i <= xsize; i++)
12165       DrawLineElement(from_x + i * dx, from_y, element, change_level);
12166   }
12167   else if (from_x == to_x)              // vertical line
12168   {
12169     for (i = 0; i <= ysize; i++)
12170       DrawLineElement(from_x, from_y + i * dy, element, change_level);
12171   }
12172   else                                  // diagonal line
12173   {
12174     if (ysize < xsize)                  // a < 1
12175     {
12176       float a = (float)ysize / (float)xsize;
12177
12178       for (i = 0; i <= xsize; i++)
12179       {
12180         int x = dx * i;
12181         int y = dy * (int)(a * i + 0.5);
12182
12183         DrawLineElement(from_x + x, from_y + y, element, change_level);
12184       }
12185     }
12186     else                                // a >= 1
12187     {
12188       float a = (float)xsize / (float)ysize;
12189
12190       for (i = 0; i <= ysize; i++)
12191       {
12192         int x = dx * (int)(a * i + 0.5);
12193         int y = dy * i;
12194
12195         DrawLineElement(from_x + x, from_y + y, element, change_level);
12196       }
12197     }
12198   }
12199 }
12200
12201 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
12202                     int element, boolean change_level)
12203 {
12204   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
12205   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
12206   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
12207   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
12208 }
12209
12210 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
12211                           int element, boolean change_level)
12212 {
12213   int y;
12214
12215   if (from_y > to_y)
12216     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
12217
12218   for (y = from_y; y <= to_y; y++)
12219     DrawLine(from_x, y, to_x, y, element, change_level);
12220 }
12221
12222 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
12223                        int element, boolean change_level)
12224 {
12225   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
12226   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
12227   int len_x = ABS(to_x - from_x);
12228   int len_y = ABS(to_y - from_y);
12229   int radius, x, y;
12230
12231   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
12232
12233   // not optimal (some points get drawn twice) but simple,
12234   // and fast enough for the few points we are drawing
12235
12236   for (x = 0; x <= radius; x++)
12237   {
12238     int sx, sy, sx2, sy2, lx, ly;
12239
12240     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
12241
12242     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
12243     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
12244     sx = getLoResScreenPos(sx2);
12245     sy = getLoResScreenPos(sy2);
12246     lx = sx + level_xpos;
12247     ly = sy + level_ypos;
12248
12249     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12250       DrawLineElement(sx2, sy2, element, change_level);
12251   }
12252
12253   for (y = 0; y <= radius; y++)
12254   {
12255     int sx, sy, sx2, sy2, lx, ly;
12256
12257     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
12258
12259     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
12260     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
12261     sx = getLoResScreenPos(sx2);
12262     sy = getLoResScreenPos(sy2);
12263     lx = sx + level_xpos;
12264     ly = sy + level_ypos;
12265
12266     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12267       DrawLineElement(sx2, sy2, element, change_level);
12268   }
12269 }
12270
12271 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
12272                     int element, boolean change_level)
12273 {
12274   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
12275   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
12276
12277   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
12278 }
12279
12280 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
12281
12282 #if DRAW_CIRCLES_BUTTON_AVAILABLE
12283 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
12284                        int element, boolean change_level)
12285 {
12286   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
12287   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
12288   int mirror_to_x2 = from_x - (to_x2 - from_x);
12289   int mirror_to_y2 = from_y - (to_y2 - from_y);
12290
12291   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
12292   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
12293   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
12294   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element, change_level);
12295 }
12296 #endif
12297
12298 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
12299 {
12300   int from_sx, from_sy;
12301   int to_sx, to_sy;
12302
12303   if (from_x > to_x)
12304     swap_numbers(&from_x, &to_x);
12305
12306   if (from_y > to_y)
12307     swap_numbers(&from_y, &to_y);
12308
12309   from_sx = SX + from_x * ed_tilesize;
12310   from_sy = SY + from_y * ed_tilesize;
12311   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
12312   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
12313
12314   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
12315   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
12316   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
12317   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
12318
12319   if (from_x == to_x && from_y == to_y)
12320     MarkTileDirty(from_x/2, from_y/2);
12321   else
12322     redraw_mask |= REDRAW_FIELD;
12323 }
12324
12325 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
12326                         int element, boolean change_level)
12327 {
12328   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
12329 }
12330
12331 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
12332                        int element, boolean change_level)
12333 {
12334   if (element == -1 || change_level)
12335     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
12336   else
12337     DrawAreaBorder(from_x, from_y, to_x, to_y);
12338 }
12339
12340 // values for CopyBrushExt()
12341 #define CB_AREA_TO_BRUSH                0
12342 #define CB_BRUSH_TO_CURSOR              1
12343 #define CB_BRUSH_TO_LEVEL               2
12344 #define CB_DELETE_OLD_CURSOR            3
12345 #define CB_DUMP_BRUSH                   4
12346 #define CB_DUMP_BRUSH_SMALL             5
12347 #define CB_CLIPBOARD_TO_BRUSH           6
12348 #define CB_BRUSH_TO_CLIPBOARD           7
12349 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
12350 #define CB_UPDATE_BRUSH_POSITION        9
12351 #define CB_FLIP_BRUSH_X                 10
12352 #define CB_FLIP_BRUSH_Y                 11
12353 #define CB_FLIP_BRUSH_XY                12
12354
12355 #define MAX_CB_PART_SIZE        10
12356 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
12357 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
12358 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
12359                                  MAX_CB_NUM_LINES *     \
12360                                  MAX_CB_PART_SIZE)
12361
12362 static int getFlippedTileExt(int map[], int element)
12363 {
12364   int i;
12365
12366   for (i = 0; map[i] != -1; i++)
12367     if (map[i] == element)
12368       return map[i ^ 1];        // get flipped element by flipping LSB of index
12369
12370   return element;
12371 }
12372
12373 static int getFlippedTileX(int element)
12374 {
12375   int map[] =
12376   {
12377     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_RIGHT,
12378     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_RIGHT,
12379     EL_BUG_LEFT,                        EL_BUG_RIGHT,
12380     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_RIGHT,
12381     EL_PACMAN_LEFT,                     EL_PACMAN_RIGHT,
12382     EL_ARROW_LEFT,                      EL_ARROW_RIGHT,
12383     EL_MOLE_LEFT,                       EL_MOLE_RIGHT,
12384     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_RIGHT,
12385     EL_YAMYAM_LEFT,                     EL_YAMYAM_RIGHT,
12386     EL_SP_PORT_LEFT,                    EL_SP_PORT_RIGHT,
12387     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_RIGHT,
12388     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_RIGHT,
12389     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_RIGHT,
12390     EL_CONVEYOR_BELT_1_LEFT,            EL_CONVEYOR_BELT_1_RIGHT,
12391     EL_CONVEYOR_BELT_2_LEFT,            EL_CONVEYOR_BELT_2_RIGHT,
12392     EL_CONVEYOR_BELT_3_LEFT,            EL_CONVEYOR_BELT_3_RIGHT,
12393     EL_CONVEYOR_BELT_4_LEFT,            EL_CONVEYOR_BELT_4_RIGHT,
12394     EL_SPRING_LEFT,                     EL_SPRING_RIGHT,
12395     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_RIGHT,
12396     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_VERTICAL_RIGHT,
12397     EL_TUBE_LEFT_UP,                    EL_TUBE_RIGHT_UP,
12398     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_DOWN,
12399     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_RIGHT,
12400     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_TOPRIGHT,
12401     EL_DC_STEELWALL_1_BOTTOMLEFT,       EL_DC_STEELWALL_1_BOTTOMRIGHT,
12402     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_TOPRIGHT_2,
12403     EL_DC_STEELWALL_1_BOTTOMLEFT_2,     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
12404     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_RIGHT,
12405     EL_ACID_POOL_TOPLEFT,               EL_ACID_POOL_TOPRIGHT,
12406     EL_ACID_POOL_BOTTOMLEFT,            EL_ACID_POOL_BOTTOMRIGHT,
12407
12408     -1
12409   };
12410
12411   return getFlippedTileExt(map, element);
12412 }
12413
12414 static int getFlippedTileY(int element)
12415 {
12416   int map[] =
12417   {
12418     EL_BD_BUTTERFLY_UP,                 EL_BD_BUTTERFLY_DOWN,
12419     EL_BD_FIREFLY_UP,                   EL_BD_FIREFLY_DOWN,
12420     EL_BUG_UP,                          EL_BUG_DOWN,
12421     EL_SPACESHIP_UP,                    EL_SPACESHIP_DOWN,
12422     EL_PACMAN_UP,                       EL_PACMAN_DOWN,
12423     EL_ARROW_UP,                        EL_ARROW_DOWN,
12424     EL_MOLE_UP,                         EL_MOLE_DOWN,
12425     EL_BALLOON_SWITCH_UP,               EL_BALLOON_SWITCH_DOWN,
12426     EL_YAMYAM_UP,                       EL_YAMYAM_DOWN,
12427     EL_SP_PORT_UP,                      EL_SP_PORT_DOWN,
12428     EL_SP_GRAVITY_PORT_UP,              EL_SP_GRAVITY_PORT_DOWN,
12429     EL_SP_GRAVITY_ON_PORT_UP,           EL_SP_GRAVITY_ON_PORT_DOWN,
12430     EL_SP_GRAVITY_OFF_PORT_UP,          EL_SP_GRAVITY_OFF_PORT_DOWN,
12431     EL_SP_CHIP_TOP,                     EL_SP_CHIP_BOTTOM,
12432     EL_TUBE_HORIZONTAL_UP,              EL_TUBE_HORIZONTAL_DOWN,
12433     EL_TUBE_LEFT_UP,                    EL_TUBE_LEFT_DOWN,
12434     EL_TUBE_RIGHT_UP,                   EL_TUBE_RIGHT_DOWN,
12435     EL_DC_STEELWALL_1_TOP,              EL_DC_STEELWALL_1_BOTTOM,
12436     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_BOTTOMLEFT,
12437     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMRIGHT,
12438     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_BOTTOMLEFT_2,
12439     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
12440     EL_DC_STEELWALL_2_TOP,              EL_DC_STEELWALL_2_BOTTOM,
12441     EL_EMC_WALL_1,                      EL_EMC_WALL_3,
12442
12443     -1
12444   };
12445
12446   return getFlippedTileExt(map, element);
12447 }
12448
12449 static int getFlippedTileXY(int element)
12450 {
12451   int map[] =
12452   {
12453     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_UP,
12454     EL_BD_BUTTERFLY_RIGHT,              EL_BD_BUTTERFLY_DOWN,
12455     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_UP,
12456     EL_BD_FIREFLY_RIGHT,                EL_BD_FIREFLY_DOWN,
12457     EL_BUG_LEFT,                        EL_BUG_UP,
12458     EL_BUG_RIGHT,                       EL_BUG_DOWN,
12459     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_UP,
12460     EL_SPACESHIP_RIGHT,                 EL_SPACESHIP_DOWN,
12461     EL_PACMAN_LEFT,                     EL_PACMAN_UP,
12462     EL_PACMAN_RIGHT,                    EL_PACMAN_DOWN,
12463     EL_ARROW_LEFT,                      EL_ARROW_UP,
12464     EL_ARROW_RIGHT,                     EL_ARROW_DOWN,
12465     EL_MOLE_LEFT,                       EL_MOLE_UP,
12466     EL_MOLE_RIGHT,                      EL_MOLE_DOWN,
12467     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_UP,
12468     EL_BALLOON_SWITCH_RIGHT,            EL_BALLOON_SWITCH_DOWN,
12469     EL_YAMYAM_LEFT,                     EL_YAMYAM_UP,
12470     EL_YAMYAM_RIGHT,                    EL_YAMYAM_DOWN,
12471     EL_SP_PORT_LEFT,                    EL_SP_PORT_UP,
12472     EL_SP_PORT_RIGHT,                   EL_SP_PORT_DOWN,
12473     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_UP,
12474     EL_SP_GRAVITY_PORT_RIGHT,           EL_SP_GRAVITY_PORT_DOWN,
12475     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_UP,
12476     EL_SP_GRAVITY_ON_PORT_RIGHT,        EL_SP_GRAVITY_ON_PORT_DOWN,
12477     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_UP,
12478     EL_SP_GRAVITY_OFF_PORT_RIGHT,       EL_SP_GRAVITY_OFF_PORT_DOWN,
12479     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_TOP,
12480     EL_SP_CHIP_RIGHT,                   EL_SP_CHIP_BOTTOM,
12481     EL_TUBE_VERTICAL,                   EL_TUBE_HORIZONTAL,
12482     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_HORIZONTAL_UP,
12483     EL_TUBE_VERTICAL_RIGHT,             EL_TUBE_HORIZONTAL_DOWN,
12484     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_UP,
12485     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_TOP,
12486     EL_DC_STEELWALL_1_RIGHT,            EL_DC_STEELWALL_1_BOTTOM,
12487     EL_DC_STEELWALL_1_HORIZONTAL,       EL_DC_STEELWALL_1_VERTICAL,
12488     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMLEFT,
12489     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMLEFT_2,
12490     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_TOP,
12491     EL_DC_STEELWALL_2_RIGHT,            EL_DC_STEELWALL_2_BOTTOM,
12492     EL_DC_STEELWALL_2_HORIZONTAL,       EL_DC_STEELWALL_2_VERTICAL,
12493     EL_EXPANDABLE_WALL_HORIZONTAL,      EL_EXPANDABLE_WALL_VERTICAL,
12494     EL_EXPANDABLE_STEELWALL_HORIZONTAL, EL_EXPANDABLE_STEELWALL_VERTICAL,
12495
12496     -1
12497   };
12498
12499   return getFlippedTileExt(map, element);
12500 }
12501
12502 static int getFlippedTile(int element, int mode)
12503 {
12504   if (IS_MM_ELEMENT(element))
12505   {
12506     // get MM game element
12507     element = map_element_RND_to_MM(element);
12508
12509     // get flipped game element
12510     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX_MM(element) :
12511                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY_MM(element) :
12512                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY_MM(element) :
12513                element);
12514
12515     // get RND game element again
12516     element = map_element_MM_to_RND(element);
12517   }
12518   else
12519   {
12520     // get flipped game element
12521     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX(element) :
12522                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY(element) :
12523                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY(element) :
12524                element);
12525   }
12526
12527   return element;
12528 }
12529
12530 static void SwapFlippedTiles(short *tile1, short *tile2, int mode)
12531 {
12532   // flip tiles
12533   short tile1_flipped = getFlippedTile(*tile1, mode);
12534   short tile2_flipped = getFlippedTile(*tile2, mode);
12535
12536   // swap tiles
12537   *tile1 = tile2_flipped;
12538   *tile2 = tile1_flipped;
12539 }
12540
12541 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
12542 {
12543   DrawLineElement(sx, sy, element, change_level);
12544 }
12545
12546 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
12547                          int button, int mode)
12548 {
12549   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
12550   static int brush_width, brush_height;
12551   static int last_cursor_x = -1, last_cursor_y = -1;
12552   static boolean delete_old_brush = FALSE;
12553   int new_element = BUTTON_ELEMENT(button);
12554   int x, y;
12555
12556   if (mode == CB_DUMP_BRUSH ||
12557       mode == CB_DUMP_BRUSH_SMALL ||
12558       mode == CB_BRUSH_TO_CLIPBOARD ||
12559       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
12560   {
12561     if (edit_mode != ED_MODE_DRAWING)
12562       return;
12563
12564     char part[MAX_CB_PART_SIZE + 1] = "";
12565     char text[MAX_CB_TEXT_SIZE + 1] = "";
12566     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
12567     int height = (draw_with_brush ? brush_height : lev_fieldy);
12568     char *format = "%s%03d";
12569
12570     for (y = 0; y < height; y++)
12571       for (x = 0; x < width; x++)
12572         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
12573           format = "%s%04d";
12574
12575     for (y = 0; y < height; y++)
12576     {
12577       for (x = 0; x < width; x++)
12578       {
12579         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
12580         char *prefix = (mode == CB_DUMP_BRUSH ||
12581                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
12582
12583         if (element >= NUM_FILE_ELEMENTS)
12584           element = EL_UNKNOWN;
12585
12586         // copy brush to level sketch text buffer for the R'n'D forum:
12587         // - large tiles: `xxx or `xxxx (0x60 ASCII)
12588         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
12589         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
12590         strcat(text, part);
12591       }
12592
12593       strcat(text, "\n");
12594     }
12595
12596     if (mode == CB_BRUSH_TO_CLIPBOARD ||
12597         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
12598       SDL_SetClipboardText(text);
12599     else
12600       Print("%s", text);        // print brush data to console and log file
12601
12602     return;
12603   }
12604
12605   if (mode == CB_CLIPBOARD_TO_BRUSH)
12606   {
12607     if (edit_mode != ED_MODE_DRAWING)
12608       return;
12609
12610     if (!SDL_HasClipboardText())
12611     {
12612       Request("Clipboard is empty!", REQ_CONFIRM);
12613
12614       return;
12615     }
12616
12617     boolean copy_to_brush = (draw_with_brush ||
12618                              drawing_function == GADGET_ID_GRAB_BRUSH);
12619
12620     // this will delete the old brush, if already drawing with a brush
12621     if (copy_to_brush)
12622       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
12623
12624     // initialization is required for "odd" (incomplete) clipboard content
12625     for (x = 0; x < MAX_LEV_FIELDX; x++)
12626       for (y = 0; y < MAX_LEV_FIELDY; y++)
12627         brush_buffer[x][y] = EL_EMPTY;
12628
12629     brush_width  = 0;
12630     brush_height = 0;
12631     x = 0;
12632     y = 0;
12633
12634     char *clipboard_text = SDL_GetClipboardText();
12635     char *ptr = clipboard_text;
12636     boolean allow_new_row = FALSE;
12637     boolean stop = FALSE;
12638
12639     while (*ptr && !stop)
12640     {
12641       boolean prefix_found = FALSE;
12642       boolean start_new_row = FALSE;
12643
12644       // level sketch element number prefixes (may be multi-byte characters)
12645       char *prefix_list[] = { "`", "¸" };
12646       int i;
12647
12648       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
12649       {
12650         char *prefix = prefix_list[i];
12651
12652         // check if string is large enough for prefix
12653         if (strlen(ptr) < strlen(prefix))
12654         {
12655           stop = TRUE;
12656
12657           break;
12658         }
12659
12660         // check if string starts with prefix
12661         if (strPrefix(ptr, prefix))
12662         {
12663           ptr += strlen(prefix);
12664
12665           prefix_found = TRUE;
12666
12667           break;
12668         }
12669       }
12670
12671       // check if prefix found and followed by (at least) three digits
12672       if (prefix_found &&
12673           strlen(ptr) >= 3 &&
12674           ptr[0] >= '0' && ptr[0] <= '9' &&
12675           ptr[1] >= '0' && ptr[1] <= '9' &&
12676           ptr[2] >= '0' && ptr[2] <= '9')
12677       {
12678         int element = ((ptr[0] - '0') * 100 +
12679                        (ptr[1] - '0') * 10 +
12680                        (ptr[2] - '0'));
12681
12682         ptr += 3;
12683
12684         // level sketch element number might consist of four digits
12685         if (ptr[0] >= '0' && ptr[0] <= '9')
12686         {
12687           element = element * 10 + (ptr[0] - '0');
12688           ptr++;
12689         }
12690
12691         // remap some (historic, now obsolete) elements
12692         element = getMappedElement(element);
12693
12694         if (element >= NUM_FILE_ELEMENTS)
12695           element = EL_UNKNOWN;
12696
12697         brush_buffer[x][y] = element;
12698
12699         brush_width  = MAX(x + 1, brush_width);
12700         brush_height = MAX(y + 1, brush_height);
12701
12702         x++;
12703
12704         if (x >= MAX_LEV_FIELDX)
12705           start_new_row = TRUE;
12706
12707         allow_new_row = TRUE;
12708       }
12709       else
12710       {
12711         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
12712           start_new_row = TRUE;
12713
12714         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
12715       }
12716
12717       if (start_new_row)
12718       {
12719         x = 0;
12720         y++;
12721
12722         if (y >= MAX_LEV_FIELDY)
12723           stop = TRUE;
12724
12725         allow_new_row = FALSE;
12726       }
12727     }
12728
12729     SDL_free(clipboard_text);
12730
12731     if (brush_width == 0 || brush_height == 0)
12732     {
12733       Request("No level sketch found in clipboard!", REQ_CONFIRM);
12734
12735       return;
12736     }
12737
12738     if (copy_to_brush)
12739     {
12740       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
12741       int mx, my;
12742
12743       SDL_GetMouseState(&mx, &my);
12744
12745       // if inside drawing area, activate and draw brush at last mouse position
12746       if (mx >= gi->x && mx < gi->x + gi->width &&
12747           my >= gi->y && my < gi->y + gi->height)
12748         CopyBrushToCursor(last_cursor_x, last_cursor_y);
12749
12750       draw_with_brush = TRUE;
12751     }
12752     else
12753     {
12754       char request[100];
12755
12756       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
12757               brush_width, brush_height);
12758
12759       if (!Request(request, REQ_ASK))
12760         return;
12761
12762       for (x = 0; x < MAX_LEV_FIELDX; x++)
12763         for (y = 0; y < MAX_LEV_FIELDY; y++)
12764           Tile[x][y] = brush_buffer[x][y];
12765
12766       lev_fieldx = level.fieldx = brush_width;
12767       lev_fieldy = level.fieldy = brush_height;
12768
12769       boolean use_em_engine = TRUE;
12770       boolean use_sp_engine = TRUE;
12771       boolean use_mm_engine = TRUE;
12772
12773       for (x = 0; x < MAX_LEV_FIELDX; x++)
12774       {
12775         for (y = 0; y < MAX_LEV_FIELDY; y++)
12776         {
12777           int element = Tile[x][y];
12778
12779           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
12780             use_em_engine = FALSE;
12781
12782           if (!IS_SP_ELEMENT(element))
12783             use_sp_engine = FALSE;
12784
12785           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
12786             use_mm_engine = FALSE;
12787         }
12788       }
12789
12790       level.game_engine_type = (use_em_engine ? GAME_ENGINE_TYPE_EM :
12791                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
12792                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
12793                                 GAME_ENGINE_TYPE_RND);
12794
12795       // update element selection list
12796       ReinitializeElementList();
12797       ModifyEditorElementList();
12798
12799       SetBorderElement();
12800
12801       DrawEditModeWindow();
12802       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12803     }
12804
12805     return;
12806   }
12807
12808   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
12809     return;
12810
12811   if (mode == CB_AREA_TO_BRUSH)
12812   {
12813     int from_lx, from_ly;
12814
12815     if (from_x > to_x)
12816       swap_numbers(&from_x, &to_x);
12817
12818     if (from_y > to_y)
12819       swap_numbers(&from_y, &to_y);
12820
12821     brush_width = to_x - from_x + 1;
12822     brush_height = to_y - from_y + 1;
12823
12824     from_lx = from_x + level_xpos;
12825     from_ly = from_y + level_ypos;
12826
12827     for (y = 0; y < brush_height; y++)
12828     {
12829       for (x = 0; x < brush_width; x++)
12830       {
12831         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
12832
12833         if (button != 1)
12834           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
12835       }
12836     }
12837
12838     if (button != 1)
12839       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12840
12841     delete_old_brush = FALSE;
12842   }
12843   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
12844            mode == CB_BRUSH_TO_LEVEL)
12845   {
12846     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
12847     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
12848     int cursor_from_x = cursor_x - brush_width / 2;
12849     int cursor_from_y = cursor_y - brush_height / 2;
12850     int border_from_x = cursor_x, border_from_y = cursor_y;
12851     int border_to_x = cursor_x, border_to_y = cursor_y;
12852
12853     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
12854       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
12855
12856     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
12857         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
12858     {
12859       delete_old_brush = FALSE;
12860
12861       return;
12862     }
12863
12864     for (y = 0; y < brush_height; y++)
12865     {
12866       for (x = 0; x < brush_width; x++)
12867       {
12868         int sx = cursor_from_x + x;
12869         int sy = cursor_from_y + y;
12870         int lx = sx + level_xpos;
12871         int ly = sy + level_ypos;
12872         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
12873         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
12874                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
12875                        brush_buffer[x][y] : new_element);
12876
12877         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12878         {
12879           if (sx < border_from_x)
12880             border_from_x = sx;
12881           else if (sx > border_to_x)
12882             border_to_x = sx;
12883           if (sy < border_from_y)
12884             border_from_y = sy;
12885           else if (sy > border_to_y)
12886             border_to_y = sy;
12887
12888           DrawBrushElement(sx, sy, element, change_level);
12889         }
12890       }
12891     }
12892
12893     if (mode != CB_DELETE_OLD_CURSOR)
12894       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
12895
12896     last_cursor_x = cursor_x;
12897     last_cursor_y = cursor_y;
12898
12899     delete_old_brush = TRUE;
12900   }
12901   else if (mode == CB_FLIP_BRUSH_X)
12902   {
12903     for (y = 0; y < brush_height; y++)
12904       for (x = 0; x < (brush_width + 1) / 2; x++)
12905         SwapFlippedTiles(&brush_buffer[x][y],
12906                          &brush_buffer[brush_width - x - 1][y], mode);
12907
12908     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
12909   }
12910   else if (mode == CB_FLIP_BRUSH_Y)
12911   {
12912     for (y = 0; y < (brush_height + 1) / 2; y++)
12913       for (x = 0; x < brush_width; x++)
12914         SwapFlippedTiles(&brush_buffer[x][y],
12915                          &brush_buffer[x][brush_height - y - 1], mode);
12916
12917     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
12918   }
12919   else if (mode == CB_FLIP_BRUSH_XY)
12920   {
12921     CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
12922
12923     for (y = 0; y < MAX(brush_width, brush_height); y++)
12924       for (x = 0; x <= y; x++)
12925         SwapFlippedTiles(&brush_buffer[x][y],
12926                          &brush_buffer[y][x], mode);
12927
12928     swap_numbers(&brush_width, &brush_height);
12929
12930     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
12931   }
12932
12933   if (mode == CB_UPDATE_BRUSH_POSITION)
12934   {
12935     last_cursor_x = from_x;
12936     last_cursor_y = from_y;
12937   }
12938 }
12939
12940 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
12941                             int button)
12942 {
12943   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
12944 }
12945
12946 static void CopyBrushToLevel(int x, int y, int button)
12947 {
12948   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
12949 }
12950
12951 static void CopyBrushToCursor(int x, int y)
12952 {
12953   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
12954 }
12955
12956 static void UpdateBrushPosition(int x, int y)
12957 {
12958   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
12959 }
12960
12961 static void DeleteBrushFromCursor(void)
12962 {
12963   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
12964 }
12965
12966 static void FlipBrushX(void)
12967 {
12968   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
12969 }
12970
12971 static void FlipBrushY(void)
12972 {
12973   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_Y);
12974 }
12975
12976 static void RotateBrush(void)
12977 {
12978   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_XY);
12979   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
12980 }
12981
12982 void DumpBrush(void)
12983 {
12984   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
12985 }
12986
12987 void DumpBrush_Small(void)
12988 {
12989   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
12990 }
12991
12992 void CopyClipboardToBrush(void)
12993 {
12994   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
12995 }
12996
12997 void CopyBrushToClipboard(void)
12998 {
12999   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
13000 }
13001
13002 void CopyBrushToClipboard_Small(void)
13003 {
13004   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
13005 }
13006
13007 void UndoLevelEditorOperation(void)
13008 {
13009   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
13010 }
13011
13012 void RedoLevelEditorOperation(void)
13013 {
13014   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
13015 }
13016
13017 static void FloodFill(int from_x, int from_y, int fill_element)
13018 {
13019   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
13020 }
13021
13022 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
13023 {
13024   int from_x = from_sx2 + 2 * level_xpos;
13025   int from_y = from_sy2 + 2 * level_ypos;
13026   int max_fillx = lev_fieldx * 2;
13027   int max_filly = lev_fieldy * 2;
13028   short Fill[max_fillx][max_filly];
13029   int x, y;
13030
13031   for (x = 0; x < max_fillx; x++)
13032     for (y = 0; y < max_filly; y++)
13033       Fill[x][y] = getLevelElementHiRes(x, y);
13034
13035   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
13036                     Fill, max_fillx, max_filly);
13037
13038   for (x = 0; x < max_fillx; x++)
13039     for (y = 0; y < max_filly; y++)
13040       if (Fill[x][y] == fill_element)
13041         SetLevelElementHiRes(x, y, Fill[x][y]);
13042 }
13043
13044 // values for DrawLevelText() modes
13045 #define TEXT_INIT               0
13046 #define TEXT_SETCURSOR          1
13047 #define TEXT_WRITECHAR          2
13048 #define TEXT_BACKSPACE          3
13049 #define TEXT_NEWLINE            4
13050 #define TEXT_END                5
13051 #define TEXT_QUERY_TYPING       6
13052
13053 static int DrawLevelText(int sx, int sy, char letter, int mode)
13054 {
13055   static short delete_buffer[MAX_LEV_FIELDX];
13056   static int start_sx;
13057   static int last_sx, last_sy;
13058   static boolean typing = FALSE;
13059   int letter_element;
13060   int lx = 0, ly = 0;
13061
13062   // map lower case letters to upper case and convert special characters
13063   if (letter >= 'a' && letter <= 'z')
13064     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
13065   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
13066     letter_element = EL_CHAR_AUMLAUT;
13067   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
13068     letter_element = EL_CHAR_OUMLAUT;
13069   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
13070     letter_element = EL_CHAR_UUMLAUT;
13071   else if (letter == '^')
13072     letter_element = EL_CHAR_COPYRIGHT;
13073   else
13074     letter_element = EL_CHAR_ASCII0 + letter;
13075
13076   if (mode != TEXT_INIT)
13077   {
13078     if (!typing)
13079       return FALSE;
13080
13081     if (mode != TEXT_SETCURSOR)
13082     {
13083       sx = last_sx;
13084       sy = last_sy;
13085     }
13086
13087     lx = last_sx + level_xpos;
13088     ly = last_sy + level_ypos;
13089   }
13090
13091   switch (mode)
13092   {
13093     case TEXT_INIT:
13094       if (typing)
13095         DrawLevelText(0, 0, 0, TEXT_END);
13096
13097       typing = TRUE;
13098       start_sx = sx;
13099       last_sx = sx;
13100       last_sy = sy;
13101       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
13102       break;
13103
13104     case TEXT_SETCURSOR:
13105       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
13106       DrawAreaBorder(sx, sy, sx, sy);
13107       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
13108                      ed_tilesize, ed_tilesize);
13109       last_sx = sx;
13110       last_sy = sy;
13111       break;
13112
13113     case TEXT_WRITECHAR:
13114       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
13115       {
13116         if (new_element1 >= EL_STEEL_CHAR_START &&
13117             new_element1 <= EL_STEEL_CHAR_END)
13118           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
13119
13120         delete_buffer[sx - start_sx] = Tile[lx][ly];
13121         Tile[lx][ly] = letter_element;
13122
13123         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
13124           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
13125         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
13126           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
13127         else
13128           DrawLevelText(0, 0, 0, TEXT_END);
13129
13130         level.changed = TRUE;
13131       }
13132       break;
13133
13134     case TEXT_BACKSPACE:
13135       if (sx > start_sx)
13136       {
13137         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
13138         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
13139         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
13140       }
13141       break;
13142
13143     case TEXT_NEWLINE:
13144       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
13145         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
13146       else
13147         DrawLevelText(0, 0, 0, TEXT_END);
13148       break;
13149
13150     case TEXT_END:
13151       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13152       DrawEditorElement(sx, sy, Tile[lx][ly]);
13153       StopTextInput();
13154       typing = FALSE;
13155       break;
13156
13157     case TEXT_QUERY_TYPING:
13158       break;
13159
13160     default:
13161       break;
13162   }
13163
13164   return typing;
13165 }
13166
13167 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
13168                           int element, boolean change_level)
13169 {
13170   int lx = sx + level_xpos;
13171   int ly = sy + level_ypos;
13172
13173   if (element == -1)
13174     DrawEditorElement(sx, sy, Tile[lx][ly]);
13175   else
13176     DrawAreaBorder(sx, sy, sx, sy);
13177 }
13178
13179 static void CheckLevelBorderElement(boolean redraw_playfield)
13180 {
13181   int last_border_element = BorderElement;
13182
13183   SetBorderElement();
13184
13185   if (redraw_playfield && BorderElement != last_border_element)
13186     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13187 }
13188
13189 static void CopyLevelToUndoBuffer(int mode)
13190 {
13191   static boolean accumulated_undo = FALSE;
13192   boolean new_undo_buffer_position = TRUE;
13193   int x, y;
13194
13195   if (undo_buffer_steps == 0)
13196     accumulated_undo = FALSE;
13197
13198   switch (mode)
13199   {
13200     case UNDO_IMMEDIATE:
13201       accumulated_undo = FALSE;
13202       break;
13203
13204     case UNDO_ACCUMULATE:
13205       if (accumulated_undo)
13206         new_undo_buffer_position = FALSE;
13207       accumulated_undo = TRUE;
13208       break;
13209
13210     default:
13211       break;
13212   }
13213
13214   if (new_undo_buffer_position)
13215   {
13216     // advance position in undo buffer ring
13217     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
13218
13219     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
13220       undo_buffer_steps++;
13221   }
13222
13223   // always reset redo buffer when storing level change into undo buffer
13224   redo_buffer_steps = 0;
13225
13226   for (x = 0; x < lev_fieldx; x++)
13227     for (y = 0; y < lev_fieldy; y++)
13228       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
13229
13230   // check if drawing operation forces change of border style
13231   CheckLevelBorderElement(TRUE);
13232
13233   level.changed = TRUE;
13234 }
13235
13236 static void RandomPlacement(int new_element)
13237 {
13238   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
13239   int num_free_positions = 0;
13240   int num_percentage, num_elements;
13241   int x, y;
13242
13243   ResetIntelliDraw();
13244
13245   // determine number of free positions for randomly placing the new element
13246   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
13247   {
13248     free_position[x][y] =
13249       (random_placement_background_restricted ?
13250        Tile[x][y] == random_placement_background_element :
13251        Tile[x][y] != new_element);
13252
13253     if (free_position[x][y])
13254       num_free_positions++;
13255   }
13256
13257   // determine number of new elements to place there
13258   num_percentage = num_free_positions * random_placement_value / 100;
13259   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
13260                   num_percentage : random_placement_value);
13261
13262   // if less free positions than elements to place, fill all these positions
13263   if (num_free_positions < num_elements)
13264   {
13265     for (x = 0; x < lev_fieldx; x++)
13266       for (y = 0; y < lev_fieldy; y++)
13267         if (free_position[x][y])
13268           SetElement(x, y, new_element);
13269   }
13270   else
13271   {
13272     while (num_elements > 0)
13273     {
13274       x = GetSimpleRandom(lev_fieldx);
13275       y = GetSimpleRandom(lev_fieldy);
13276
13277       // don't place element at the same position twice
13278       if (free_position[x][y])
13279       {
13280         free_position[x][y] = FALSE;
13281         SetElement(x, y, new_element);
13282         num_elements--;
13283       }
13284     }
13285   }
13286
13287   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13288   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13289 }
13290
13291 static void WrapLevel(int dx, int dy)
13292 {
13293   int wrap_dx = lev_fieldx - dx;
13294   int wrap_dy = lev_fieldy - dy;
13295   int x, y;
13296
13297   for (x = 0; x < lev_fieldx; x++)
13298     for (y = 0; y < lev_fieldy; y++)
13299       TileBackup[x][y] = Tile[x][y];
13300
13301   for (x = 0; x < lev_fieldx; x++)
13302     for (y = 0; y < lev_fieldy; y++)
13303       Tile[x][y] =
13304         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
13305
13306   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13307   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
13308 }
13309
13310 static void DrawAreaElementHighlight(boolean highlighted,
13311                                      boolean highlighted_similar)
13312 {
13313   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13314
13315   if (!highlighted)
13316     return;
13317
13318   int x, y;
13319
13320   for (x = 0; x < ed_fieldx; x++)
13321   {
13322     for (y = 0; y < ed_fieldy; y++)
13323     {
13324       boolean highlight = FALSE;
13325       int lx = x + level_xpos;
13326       int ly = y + level_ypos;
13327
13328       if (!IN_LEV_FIELD(lx, ly))
13329         continue;
13330
13331       // check if element is the same
13332       if (Tile[lx][ly] == new_element1)
13333         highlight = TRUE;
13334
13335       // check if element is similar
13336       if (highlighted_similar &&
13337           strEqual(element_info[Tile[lx][ly]].class_name,
13338                    element_info[new_element1].class_name))
13339         highlight = TRUE;
13340
13341       // check if element is matching MM style wall
13342       if (IS_MM_WALL(Tile[lx][ly]) &&
13343           map_mm_wall_element(Tile[lx][ly]) == new_element1)
13344         highlight = TRUE;
13345
13346       if (!highlight)
13347         continue;
13348
13349       if (IS_MM_WALL(Tile[lx][ly]) && !highlighted_similar)
13350       {
13351         int i;
13352
13353         for (i = 0; i < 4; i++)
13354         {
13355           if (!(MM_WALL_BITS(Tile[lx][ly]) & (1 << i)))
13356             continue;
13357
13358           int xx = x * 2 + (i % 2);
13359           int yy = y * 2 + (i / 2);
13360           int sx = SX + xx * ed_tilesize / 2;
13361           int sy = SY + yy * ed_tilesize / 2;
13362           int from_sx = sx;
13363           int from_sy = sy;
13364           int to_sx = sx + ed_tilesize / 2 - 1;
13365           int to_sy = sy + ed_tilesize / 2 - 1;
13366
13367           DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
13368           DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
13369           DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
13370           DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
13371         }
13372       }
13373       else
13374       {
13375         int sx = SX + x * ed_tilesize;
13376         int sy = SY + y * ed_tilesize;
13377         int from_sx = sx;
13378         int from_sy = sy;
13379         int to_sx = sx + ed_tilesize - 1;
13380         int to_sy = sy + ed_tilesize - 1;
13381
13382         DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
13383         DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
13384         DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
13385         DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
13386       }
13387     }
13388   }
13389 }
13390
13391 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
13392 {
13393   char *template_filename_old = getLocalLevelTemplateFilename();
13394   char *template_filename_new =
13395     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
13396
13397   if (copyFile(template_filename_old, template_filename_new) != 0)
13398     Request("Cannot copy level template!", REQ_CONFIRM);
13399
13400   free(template_filename_new);
13401 }
13402
13403 static void HandleDrawingAreas(struct GadgetInfo *gi)
13404 {
13405   static boolean started_inside_drawing_area = FALSE;
13406   static int last_sx = -1;
13407   static int last_sy = -1;
13408   static int last_sx2 = -1;
13409   static int last_sy2 = -1;
13410   int id = gi->custom_id;
13411   int type_id = gi->custom_type_id;
13412   boolean button_press_event;
13413   boolean button_release_event;
13414   boolean inside_drawing_area = !gi->event.off_borders;
13415   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
13416   int actual_drawing_function;
13417   int button = gi->event.button;
13418   int new_element = BUTTON_ELEMENT(button);
13419   int sx = gi->event.x, sy = gi->event.y;
13420   int min_sx = 0, min_sy = 0;
13421   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
13422   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
13423   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
13424   int sx2 = gi->event.mx / mini_item_xsize;
13425   int sy2 = gi->event.my / mini_item_ysize;
13426   int dx = sx2 % 2;
13427   int dy = sy2 % 2;
13428   int lx = 0, ly = 0;
13429   int x, y;
13430
13431   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
13432   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
13433
13434   // make sure to stay inside drawing area boundaries
13435   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
13436   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
13437
13438   if (draw_level)
13439   {
13440     int min_lx = 0, min_ly = 0;
13441     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
13442
13443     // get positions inside level field
13444     lx = sx + level_xpos;
13445     ly = sy + level_ypos;
13446
13447     if (!IN_LEV_FIELD(lx, ly))
13448       inside_drawing_area = FALSE;
13449
13450     // make sure to stay inside level field boundaries
13451     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
13452     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
13453
13454     // correct drawing area positions accordingly
13455     sx = lx - level_xpos;
13456     sy = ly - level_ypos;
13457   }
13458
13459   // also correct MM wall-sized (double) drawing area positions accordingly
13460   if (sx2 / 2 < sx || sx2 / 2 > sx)
13461   {
13462     dx = (sx2 / 2 < sx ? 0 : 1);
13463     sx2 = sx * 2 + dx;
13464   }
13465   if (sy2 / 2 < sy || sy2 / 2 > sy)
13466   {
13467     dy = (sy2 / 2 < sy ? 0 : 1);
13468     sy2 = sy * 2 + dy;
13469   }
13470
13471   if (!button_press_event && !button_release_event)
13472   {
13473     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
13474     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13475                              isHiresTileElement(old_element) &&
13476                              isHiresDrawElement(new_element));
13477
13478     // prevent handling events for every pixel position when moving mouse
13479     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
13480         (sx2 == last_sx2 && sy2 == last_sy2))
13481       return;
13482   }
13483
13484   last_sx = sx;
13485   last_sy = sy;
13486   last_sx2 = sx2;
13487   last_sy2 = sy2;
13488
13489   if (button_press_event)
13490     started_inside_drawing_area = inside_drawing_area;
13491
13492   if (!started_inside_drawing_area)
13493     return;
13494
13495   if (!IS_VALID_BUTTON(button))
13496     return;
13497
13498   // handle info callback for each invocation of action callback
13499   gi->callback_info(gi);
13500
13501   // automatically switch to 'single item' drawing mode, if needed
13502   actual_drawing_function =
13503     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
13504      drawing_function : GADGET_ID_SINGLE_ITEMS);
13505
13506   // clicking into drawing area with pressed Control key picks element
13507   if (GetKeyModState() & KMOD_Control)
13508   {
13509     last_drawing_function = drawing_function;
13510     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
13511   }
13512
13513   if (GetKeyModState() & KMOD_Shift)
13514   {
13515     if (button_press_event || button_release_event)
13516       ResetIntelliDraw();
13517   }
13518
13519   SetDrawModeHiRes(-1);         // reset to normal draw mode
13520
13521   switch (actual_drawing_function)
13522   {
13523     case GADGET_ID_SINGLE_ITEMS:
13524       if (draw_level)
13525       {
13526         if (button_release_event)
13527         {
13528           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13529
13530           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
13531               !inside_drawing_area)
13532             DeleteBrushFromCursor();
13533
13534           break;
13535         }
13536
13537         if (draw_with_brush)
13538         {
13539           CopyBrushToLevel(sx, sy, button);
13540         }
13541         else
13542         {
13543           SetDrawModeHiRes(new_element);
13544
13545           if (IS_PLAYER_ELEMENT(new_element) || IS_MM_MCDUFFIN(new_element))
13546           {
13547             // remove player at old position
13548             for (y = 0; y < lev_fieldy; y++)
13549             {
13550               for (x = 0; x < lev_fieldx; x++)
13551               {
13552                 int old_element = Tile[x][y];
13553
13554                 if (IS_PLAYER_ELEMENT(old_element) &&
13555                     IS_PLAYER_ELEMENT(new_element))
13556                 {
13557                   int replaced_with_element =
13558                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
13559                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
13560
13561                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
13562                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
13563
13564                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
13565                      old_element == EL_PLAYER_1 ? EL_EMPTY :
13566
13567                      new_element >= EL_PLAYER_1 &&
13568                      new_element <= EL_PLAYER_4 &&
13569                      new_element == old_element ? EL_EMPTY :
13570
13571                      old_element);
13572
13573                   SetElement(x, y, replaced_with_element);
13574                 }
13575                 else if (IS_MM_MCDUFFIN(old_element) &&
13576                          IS_MM_MCDUFFIN(new_element))
13577                 {
13578                   // remove McDuffin at old position
13579                   SetElement(x, y, EL_EMPTY);
13580                 }
13581               }
13582             }
13583           }
13584
13585           SetElementButton(lx, ly, dx, dy, new_element, button);
13586         }
13587       }
13588       else if (!button_release_event)
13589       {
13590         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
13591
13592         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
13593           DrawMiniGraphicExt(drawto,
13594                              gi->x + sx * MINI_TILEX,
13595                              gi->y + sy * MINI_TILEY,
13596                              el2edimg(new_element));
13597         else
13598           DrawFixedGraphicExt(drawto,
13599                               gi->x + sx * TILEX,
13600                               gi->y + sy * TILEY,
13601                               el2edimg(new_element), 0);
13602
13603         if (id == GADGET_ID_CUSTOM_GRAPHIC)
13604           new_element = GFX_ELEMENT(new_element);
13605
13606         drawingarea_info[type_id].value[pos] = new_element;
13607
13608         CopyElementPropertiesToGame(properties_element);
13609
13610         if (id == GADGET_ID_CUSTOM_GRAPHIC)
13611         {
13612           UpdateCustomElementGraphicGadgets();
13613
13614           FrameCounter = 0;     // restart animation frame counter
13615         }
13616       }
13617       break;
13618
13619     case GADGET_ID_CONNECTED_ITEMS:
13620       {
13621         static int last_sx = -1;
13622         static int last_sy = -1;
13623
13624         if (button_release_event)
13625           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13626
13627         SetDrawModeHiRes(new_element);
13628
13629         if (getDrawModeHiRes())
13630         {
13631           sx = sx2;
13632           sy = sy2;
13633         }
13634
13635         if (!button_press_event)
13636           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
13637
13638         last_sx = sx;
13639         last_sy = sy;
13640       }
13641       break;
13642
13643     case GADGET_ID_LINE:
13644     case GADGET_ID_ARC:
13645     case GADGET_ID_RECTANGLE:
13646     case GADGET_ID_FILLED_BOX:
13647       SetDrawModeHiRes(new_element);
13648
13649       if (getDrawModeHiRes())
13650       {
13651         sx = sx2;
13652         sy = sy2;
13653       }
13654       // FALLTHROUGH
13655     case GADGET_ID_GRAB_BRUSH:
13656     case GADGET_ID_TEXT:
13657       {
13658         static int last_sx = -1;
13659         static int last_sy = -1;
13660         static int start_sx = -1;
13661         static int start_sy = -1;
13662         void (*draw_func)(int, int, int, int, int, boolean);
13663
13664         if (drawing_function == GADGET_ID_LINE)
13665           draw_func = DrawLine;
13666         else if (drawing_function == GADGET_ID_ARC)
13667           draw_func = DrawArc;
13668         else if (drawing_function == GADGET_ID_RECTANGLE)
13669           draw_func = DrawBox;
13670         else if (drawing_function == GADGET_ID_FILLED_BOX)
13671           draw_func = DrawFilledBox;
13672         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
13673           draw_func = SelectArea;
13674         else // (drawing_function == GADGET_ID_TEXT)
13675           draw_func = SetTextCursor;
13676
13677         if (button_press_event)
13678         {
13679           draw_func(sx, sy, sx, sy, new_element, FALSE);
13680           start_sx = last_sx = sx;
13681           start_sy = last_sy = sy;
13682
13683           if (drawing_function == GADGET_ID_TEXT)
13684             DrawLevelText(0, 0, 0, TEXT_END);
13685         }
13686         else if (button_release_event)
13687         {
13688           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
13689           if (drawing_function == GADGET_ID_GRAB_BRUSH)
13690           {
13691             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
13692             CopyBrushToCursor(sx, sy);
13693             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
13694                           MB_LEFTBUTTON);
13695             draw_with_brush = TRUE;
13696           }
13697           else if (drawing_function == GADGET_ID_TEXT)
13698             DrawLevelText(sx, sy, 0, TEXT_INIT);
13699           else
13700             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13701         }
13702         else if (last_sx != sx || last_sy != sy)
13703         {
13704           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
13705           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
13706             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
13707           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
13708           last_sx = sx;
13709           last_sy = sy;
13710         }
13711       }
13712       break;
13713
13714     case GADGET_ID_FLOOD_FILL:
13715       if (button_press_event && Tile[lx][ly] != new_element)
13716       {
13717         if (IS_MM_WALL_EDITOR(new_element))
13718           FloodFillWall_MM(sx2, sy2, new_element);
13719         else
13720           FloodFill(lx, ly, new_element);
13721
13722         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13723         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13724       }
13725       break;
13726
13727     case GADGET_ID_PICK_ELEMENT:
13728       if (button_release_event)
13729         ClickOnGadget(level_editor_gadget[last_drawing_function],
13730                       MB_LEFTBUTTON);
13731       else if (draw_level)
13732         PickDrawingElement(button, Tile[lx][ly]);
13733       else
13734       {
13735         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
13736
13737         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
13738       }
13739
13740     default:
13741       break;
13742   }
13743
13744   // do not mark level as modified for certain non-level-changing gadgets
13745   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
13746        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
13747       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
13748       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
13749     return;
13750
13751   level.changed = TRUE;
13752 }
13753
13754 static void HandleCounterButtons(struct GadgetInfo *gi)
13755 {
13756   int gadget_id = gi->custom_id;
13757   int counter_id = gi->custom_type_id;
13758   int button = gi->event.button;
13759   int *counter_value = counterbutton_info[counter_id].value;
13760   int step = BUTTON_STEPSIZE(button) *
13761     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
13762
13763   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
13764   {
13765     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
13766     boolean released = (gi->event.type == GD_EVENT_RELEASED);
13767     boolean level_changed = LevelChanged();
13768
13769     if ((level_changed && pressed) || (!level_changed && released))
13770       return;
13771
13772     if (level_changed && !Request("Level has changed! Discard changes?",
13773                                   REQ_ASK))
13774     {
13775       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
13776         ModifyEditorCounterValue(counter_id, *counter_value);
13777
13778       return;
13779     }
13780   }
13781
13782   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
13783     *counter_value = gi->textinput.number_value;
13784   else
13785     ModifyEditorCounterValue(counter_id, *counter_value + step);
13786
13787   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
13788   {
13789     int last_game_engine_type = level.game_engine_type;
13790
13791     LoadLevel(level_nr);
13792     LoadScore(level_nr);
13793
13794     SaveLevelSetup_SeriesInfo();
13795
13796     TapeErase();
13797
13798     ResetUndoBuffer();
13799     DrawEditModeWindow();
13800
13801     if (level.game_engine_type != last_game_engine_type)
13802     {
13803       // update element selection list
13804       ReinitializeElementList();
13805       ModifyEditorElementList();
13806     }
13807
13808     return;
13809   }
13810
13811   switch (counter_id)
13812   {
13813     case ED_COUNTER_ID_YAMYAM_CONTENT:
13814       DrawYamYamContentAreas();
13815       break;
13816
13817     case ED_COUNTER_ID_BALL_CONTENT:
13818       DrawMagicBallContentAreas();
13819       break;
13820
13821     case ED_COUNTER_ID_ANDROID_CONTENT:
13822       DrawAndroidElementArea();
13823       break;
13824
13825     case ED_COUNTER_ID_GROUP_CONTENT:
13826       DrawGroupElementArea();
13827       CopyGroupElementPropertiesToGame(properties_element);
13828       break;
13829
13830     case ED_COUNTER_ID_INVENTORY_SIZE:
13831       DrawPlayerInitialInventoryArea(properties_element);
13832       break;
13833
13834     case ED_COUNTER_ID_MM_BALL_CONTENT:
13835       DrawMMBallContentArea();
13836       break;
13837
13838     case ED_COUNTER_ID_ENVELOPE_XSIZE:
13839     case ED_COUNTER_ID_ENVELOPE_YSIZE:
13840       DrawEnvelopeTextArea(-1);
13841       break;
13842
13843     case ED_COUNTER_ID_LEVEL_XSIZE:
13844     case ED_COUNTER_ID_LEVEL_YSIZE:
13845       lev_fieldx = level.fieldx;
13846       lev_fieldy = level.fieldy;
13847
13848       // check if resizing of level results in change of border border
13849       SetBorderElement();
13850
13851       break;
13852
13853     default:
13854       break;
13855   }
13856
13857   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
13858        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
13859       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
13860        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
13861     CopyElementPropertiesToGame(properties_element);
13862
13863   // do not mark level as modified for certain non-level-changing gadgets
13864   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
13865        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
13866       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
13867        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
13868     return;
13869
13870   level.changed = TRUE;
13871 }
13872
13873 static void HandleTextInputGadgets(struct GadgetInfo *gi)
13874 {
13875   int type_id = gi->custom_type_id;
13876
13877   strcpy(textinput_info[type_id].value, gi->textinput.value);
13878
13879   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
13880   {
13881     CopyElementPropertiesToGame(properties_element);
13882
13883     ModifyEditorElementList();  // update changed button info text
13884   }
13885
13886   // do not mark level as modified for certain non-level-changing gadgets
13887   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
13888       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
13889     return;
13890
13891   level.changed = TRUE;
13892 }
13893
13894 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
13895 {
13896   int type_id = gi->custom_type_id;
13897
13898   strncpy(textarea_info[type_id].value, gi->textarea.value,
13899           MAX_ENVELOPE_TEXT_LEN);
13900   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
13901
13902   level.changed = TRUE;
13903 }
13904
13905 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
13906 {
13907   int type_id = gi->custom_type_id;
13908   int value_old = *selectbox_info[type_id].value;
13909   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
13910
13911   *selectbox_info[type_id].value = value_new;
13912
13913   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
13914   {
13915     DrawLevelConfigWindow();
13916   }
13917   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
13918   {
13919     element_info[properties_element].current_change_page = gi->selectbox.index;
13920
13921     DrawPropertiesWindow();
13922   }
13923   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
13924             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
13925            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
13926             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
13927            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
13928   {
13929     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
13930     {
13931       // when changing action type, also check action mode and action arg
13932       if (value_old != value_new)
13933         setSelectboxSpecialActionVariablesIfNeeded();
13934
13935       DrawPropertiesChange();
13936     }
13937
13938     CopyElementPropertiesToGame(properties_element);
13939   }
13940   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
13941   {
13942     // update element selection list
13943     ReinitializeElementList();
13944     ModifyEditorElementList();
13945   }
13946
13947   // do not mark level as modified for certain non-level-changing gadgets
13948   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
13949       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
13950     return;
13951
13952   level.changed = TRUE;
13953 }
13954
13955 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
13956 {
13957   int type_id = gi->custom_type_id;
13958   int i;
13959
13960   if (type_id >= ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST &&
13961       type_id <= ED_TAB_BUTTON_ID_LEVELCONFIG_LAST)
13962   {
13963     edit_mode_levelconfig = gi->custom_type_id;
13964
13965     DrawLevelConfigWindow();
13966   }
13967   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
13968            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
13969   {
13970     edit_mode_properties = gi->custom_type_id;
13971
13972     DrawPropertiesWindow();
13973   }
13974   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
13975            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
13976   {
13977     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
13978
13979     // backup original "level.field" (needed to track playfield changes)
13980     CopyPlayfield(level.field, TileBackup);
13981
13982     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
13983     CopyPlayfield(Tile, level.field);
13984
13985     if (new_template ||
13986         Request("Save this template and kill the old?", REQ_ASK))
13987       SaveLevelTemplate();
13988
13989     if (new_template)
13990       Request("Template saved!", REQ_CONFIRM);
13991
13992     // restore original "level.field" (needed to track playfield changes)
13993     CopyPlayfield(TileBackup, level.field);
13994   }
13995   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
13996   {
13997     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
13998
13999     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
14000         leveldir_current->readonly)
14001     {
14002       Request("This level set is read-only!", REQ_CONFIRM);
14003
14004       return;
14005     }
14006
14007     if (strEqual(levelset_name, ""))
14008     {
14009       Request("Please enter level set title!", REQ_CONFIRM);
14010
14011       return;
14012     }
14013
14014     if (strEqual(levelset_author, ""))
14015     {
14016       Request("Please enter level set author!", REQ_CONFIRM);
14017
14018       return;
14019     }
14020
14021     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
14022     {
14023       if (UpdateUserLevelSet(levelset_subdir,
14024                              levelset_name,
14025                              levelset_author,
14026                              levelset_num_levels))
14027       {
14028         Request("Level set updated!", REQ_CONFIRM);
14029       }
14030       else
14031       {
14032         Request("Updating level set failed!", REQ_CONFIRM);
14033       }
14034     }
14035     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
14036     {
14037       if (level.changed && !Request("Level has changed! Discard changes?",
14038                                      REQ_ASK))
14039         return;
14040
14041       if (CreateUserLevelSet(levelset_subdir,
14042                              levelset_name,
14043                              levelset_author,
14044                              levelset_num_levels,
14045                              levelset_use_levelset_artwork))
14046       {
14047         if (levelset_copy_level_template)
14048           CopyLevelTemplateToUserLevelSet(levelset_subdir);
14049
14050         Request("New level set created!", REQ_CONFIRM);
14051
14052         AddUserLevelSetToLevelInfo(levelset_subdir);
14053         ChangeEditorToLevelSet(levelset_subdir);
14054       }
14055       else
14056       {
14057         Request("Creating new level set failed!", REQ_CONFIRM);
14058       }
14059     }
14060   }
14061   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
14062            custom_element.num_change_pages < MAX_CHANGE_PAGES)
14063   {
14064     struct ElementInfo *ei = &element_info[properties_element];
14065
14066     // when modifying custom element, ask for copying level template
14067     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
14068       return;
14069
14070     setElementChangePages(ei, ei->num_change_pages + 1);
14071
14072     // set new change page to be new current change page
14073     ei->current_change_page = ei->num_change_pages - 1;
14074     ei->change = &ei->change_page[ei->current_change_page];
14075
14076     setElementChangeInfoToDefaults(ei->change);
14077
14078     DrawPropertiesWindow();
14079
14080     level.changed = TRUE;
14081   }
14082   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
14083            custom_element.num_change_pages > MIN_CHANGE_PAGES)
14084   {
14085     struct ElementInfo *ei = &element_info[properties_element];
14086
14087     // when modifying custom element, ask for copying level template
14088     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
14089       return;
14090
14091     // copy all change pages after change page to be deleted
14092     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
14093       ei->change_page[i] = ei->change_page[i + 1];
14094
14095     setElementChangePages(ei, ei->num_change_pages - 1);
14096
14097     DrawPropertiesWindow();
14098
14099     level.changed = TRUE;
14100   }
14101 }
14102
14103 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
14104 {
14105   int type_id = gi->custom_type_id;
14106
14107   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
14108       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
14109   {
14110     struct ElementInfo *ei = &element_info[properties_element];
14111     int step = BUTTON_STEPSIZE(gi->event.button);
14112
14113     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
14114     ei->current_change_page += step;
14115
14116     if (ei->current_change_page < 0)
14117       ei->current_change_page = 0;
14118     else if (ei->current_change_page >= ei->num_change_pages)
14119       ei->current_change_page = ei->num_change_pages - 1;
14120
14121     DrawPropertiesWindow();
14122   }
14123   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
14124            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
14125   {
14126     struct ElementInfo *ei = &element_info[properties_element];
14127     int current_change_page = ei->current_change_page;
14128
14129     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
14130     {
14131       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
14132         ei->change_page[current_change_page];
14133     }
14134     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
14135     {
14136       // when modifying custom element, ask for copying level template
14137       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
14138         return;
14139
14140       ei->change_page[current_change_page] =
14141         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
14142
14143       level.changed = TRUE;
14144     }
14145
14146     DrawPropertiesWindow();
14147   }
14148 }
14149
14150 static void HandleRadiobuttons(struct GadgetInfo *gi)
14151 {
14152   int type_id = gi->custom_type_id;
14153
14154   *radiobutton_info[type_id].value =
14155     radiobutton_info[type_id].checked_value;
14156
14157   // do not mark level as modified for certain non-level-changing gadgets
14158   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
14159       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
14160     return;
14161
14162   level.changed = TRUE;
14163 }
14164
14165 static void HandleCheckbuttons(struct GadgetInfo *gi)
14166 {
14167   int type_id = gi->custom_type_id;
14168
14169   *checkbutton_info[type_id].value ^= TRUE;
14170
14171   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
14172       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
14173       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
14174       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
14175          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
14176         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
14177          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
14178        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
14179   {
14180     CopyElementPropertiesToGame(properties_element);
14181   }
14182
14183   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
14184   {
14185     UpdateCustomElementGraphicGadgets();
14186   }
14187   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
14188            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
14189   {
14190     boolean template_related_changes_found = FALSE;
14191     int i;
14192
14193     // check if any custom, group or empty elements have been changed
14194     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
14195       if ((IS_CUSTOM_ELEMENT(i) ||
14196            IS_GROUP_ELEMENT(i) ||
14197            IS_EMPTY_ELEMENT(i)) &&
14198           element_info[i].modified_settings)
14199         template_related_changes_found = TRUE;
14200
14201     if (level.use_custom_template &&
14202         !fileExists(getGlobalLevelTemplateFilename()))
14203     {
14204       Request("No level template found!", REQ_CONFIRM);
14205
14206       level.use_custom_template = FALSE;
14207
14208       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
14209
14210       return;
14211     }
14212
14213     if (level.use_custom_template &&
14214         template_related_changes_found &&
14215         !Request("Discard changes and use level template?", REQ_ASK))
14216     {
14217       level.use_custom_template = FALSE;
14218
14219       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
14220
14221       return;
14222     }
14223
14224     if (!level.use_custom_template &&
14225         Request("Copy settings from level template?", REQ_ASK))
14226     {
14227       return;
14228     }
14229
14230     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
14231
14232     DrawEditModeWindow();
14233   }
14234   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
14235   {
14236     if (setup.editor.use_template_for_new_levels &&
14237         !fileExists(getGlobalLevelTemplateFilename()))
14238     {
14239       Request("No level template found!", REQ_CONFIRM);
14240
14241       return;
14242     }
14243
14244     if (setup.editor.use_template_for_new_levels &&
14245         level.changed &&
14246         !Request("Discard level and load template?", REQ_ASK))
14247     {
14248       return;
14249     }
14250
14251     if (!setup.editor.use_template_for_new_levels &&
14252         level.changed &&
14253         !Request("Discard level and use empty level?", REQ_ASK))
14254     {
14255       return;
14256     }
14257
14258     LoadLevel(level_nr);
14259     LoadScore(level_nr);
14260
14261     TapeErase();
14262
14263     ResetUndoBuffer();
14264     DrawEditModeWindow();
14265   }
14266   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
14267   {
14268     SetAutomaticNumberOfGemsNeeded();
14269   }
14270
14271   // do not mark level as modified for certain non-level-changing gadgets
14272   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
14273        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
14274       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
14275        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
14276        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
14277       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
14278     return;
14279
14280   level.changed = TRUE;
14281 }
14282
14283 static void HandleControlButtons(struct GadgetInfo *gi)
14284 {
14285   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
14286   static int last_edit_mode = ED_MODE_DRAWING;
14287   static int last_custom_copy_mode = -1;
14288   static int last_button = 0;
14289   int id = gi->custom_id;
14290   int button = gi->event.button;
14291   int step = BUTTON_STEPSIZE(button);
14292   int new_element = BUTTON_ELEMENT(button);
14293   int last_properties_element = properties_element;
14294   int x, y;
14295
14296   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
14297     DrawLevelText(0, 0, 0, TEXT_END);
14298
14299   if (id < ED_NUM_CTRL1_BUTTONS &&
14300       id != GADGET_ID_SINGLE_ITEMS &&
14301       id != GADGET_ID_PICK_ELEMENT &&
14302       edit_mode != ED_MODE_DRAWING &&
14303       drawing_function != GADGET_ID_PICK_ELEMENT &&
14304       !(GetKeyModState() & KMOD_Control))
14305     ChangeEditModeWindow(ED_MODE_DRAWING);
14306
14307   // element copy mode active, but no element button pressed => deactivate
14308   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
14309     last_custom_copy_mode = -1;
14310
14311   // when showing palette on element buttons, change element of button used
14312   if (editor.palette.show_on_element_buttons &&
14313       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
14314   {
14315     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
14316
14317     id = GADGET_ID_PALETTE;
14318   }
14319
14320   switch (id)
14321   {
14322     case GADGET_ID_SCROLL_LEFT:
14323       if (level_xpos >= 0)
14324       {
14325         if (lev_fieldx < ed_fieldx - 2)
14326           break;
14327
14328         level_xpos -= step;
14329         if (level_xpos < -1)
14330           level_xpos = -1;
14331         if (button == 1)
14332           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
14333         else
14334           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14335
14336         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
14337                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
14338       }
14339       break;
14340
14341     case GADGET_ID_SCROLL_RIGHT:
14342       if (level_xpos <= lev_fieldx - ed_fieldx)
14343       {
14344         if (lev_fieldx < ed_fieldx - 2)
14345           break;
14346
14347         level_xpos += step;
14348         if (level_xpos > lev_fieldx - ed_fieldx + 1)
14349           level_xpos = lev_fieldx - ed_fieldx + 1;
14350         if (button == 1)
14351           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
14352         else
14353           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14354
14355         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
14356                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
14357       }
14358       break;
14359
14360     case GADGET_ID_SCROLL_UP:
14361       if (level_ypos >= 0)
14362       {
14363         if (lev_fieldy < ed_fieldy - 2)
14364           break;
14365
14366         level_ypos -= step;
14367         if (level_ypos < -1)
14368           level_ypos = -1;
14369         if (button == 1)
14370           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
14371         else
14372           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14373
14374         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
14375                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
14376       }
14377       break;
14378
14379     case GADGET_ID_SCROLL_DOWN:
14380       if (level_ypos <= lev_fieldy - ed_fieldy)
14381       {
14382         if (lev_fieldy < ed_fieldy - 2)
14383           break;
14384
14385         level_ypos += step;
14386         if (level_ypos > lev_fieldy - ed_fieldy + 1)
14387           level_ypos = lev_fieldy - ed_fieldy + 1;
14388         if (button == 1)
14389           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
14390         else
14391           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14392
14393         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
14394                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
14395       }
14396       break;
14397
14398     case GADGET_ID_SCROLL_HORIZONTAL:
14399       level_xpos = gi->event.item_position - 1;
14400
14401       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14402       BackToFront();
14403
14404       break;
14405
14406     case GADGET_ID_SCROLL_VERTICAL:
14407       level_ypos = gi->event.item_position - 1;
14408
14409       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14410       BackToFront();
14411
14412       break;
14413
14414     case GADGET_ID_SCROLL_LIST_UP:
14415     case GADGET_ID_SCROLL_LIST_DOWN:
14416     case GADGET_ID_SCROLL_LIST_VERTICAL:
14417       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
14418         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
14419       else
14420       {
14421         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
14422         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
14423
14424         if (element_shift < 0)
14425           element_shift = 0;
14426         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14427           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14428
14429         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14430                      GDI_SCROLLBAR_ITEM_POSITION,
14431                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14432       }
14433
14434       ModifyEditorElementList();
14435
14436       break;
14437
14438     case GADGET_ID_PROPERTIES:
14439       // always switch off element properties when they are already displayed
14440       last_properties_element = new_element;
14441     case GADGET_ID_ELEMENT_LEFT:
14442     case GADGET_ID_ELEMENT_MIDDLE:
14443     case GADGET_ID_ELEMENT_RIGHT:
14444       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
14445                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
14446                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
14447                             new_element);
14448
14449       if (edit_mode != ED_MODE_PROPERTIES)
14450       {
14451         last_edit_mode = edit_mode;
14452
14453         ChangeEditModeWindow(ED_MODE_PROPERTIES);
14454
14455         last_level_drawing_function = drawing_function;
14456         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
14457                       MB_LEFTBUTTON);
14458       }
14459       else if (properties_element != last_properties_element)
14460       {
14461         DrawEditModeWindow();
14462       }
14463       else
14464       {
14465         ChangeEditModeWindow(ED_MODE_DRAWING);
14466
14467         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
14468                       MB_LEFTBUTTON);
14469       }
14470       break;
14471
14472     case GADGET_ID_PALETTE:
14473       if (edit_mode != ED_MODE_PALETTE)
14474       {
14475         last_edit_mode = edit_mode;
14476
14477         ChangeEditModeWindow(ED_MODE_PALETTE);
14478       }
14479       else
14480       {
14481         ChangeEditModeWindow(last_edit_mode);
14482       }
14483       break;
14484
14485     case GADGET_ID_WRAP_LEFT:
14486       WrapLevel(-step, 0);
14487       break;
14488
14489     case GADGET_ID_WRAP_RIGHT:
14490       WrapLevel(step, 0);
14491       break;
14492
14493     case GADGET_ID_WRAP_UP:
14494       WrapLevel(0, -step);
14495       break;
14496
14497     case GADGET_ID_WRAP_DOWN:
14498       WrapLevel(0, step);
14499       break;
14500
14501     case GADGET_ID_SINGLE_ITEMS:
14502     case GADGET_ID_CONNECTED_ITEMS:
14503     case GADGET_ID_LINE:
14504     case GADGET_ID_ARC:
14505     case GADGET_ID_TEXT:
14506     case GADGET_ID_RECTANGLE:
14507     case GADGET_ID_FILLED_BOX:
14508     case GADGET_ID_FLOOD_FILL:
14509     case GADGET_ID_GRAB_BRUSH:
14510     case GADGET_ID_PICK_ELEMENT:
14511       if (drawing_function != GADGET_ID_PICK_ELEMENT)
14512         last_drawing_function = drawing_function;
14513       drawing_function = id;
14514       draw_with_brush = FALSE;
14515       break;
14516
14517     case GADGET_ID_RANDOM_PLACEMENT:
14518       RandomPlacement(new_element);
14519       break;
14520
14521     case GADGET_ID_ZOOM:
14522       // zoom level editor tile size in or out (or reset to default size)
14523       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
14524                      button == 2 ? ed_tilesize_default :
14525                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
14526
14527       // when using touch device, cycle through all zoom tilesizes
14528       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
14529         ed_tilesize = MICRO_TILESIZE;
14530
14531       // limit zoom level by upper and lower bound
14532       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
14533
14534       InitZoomLevelSettings(ed_tilesize);
14535
14536       if (edit_mode == ED_MODE_DRAWING)
14537       {
14538         DrawDrawingWindow();
14539
14540         // redraw zoom gadget info text
14541         PrintEditorGadgetInfoText(level_editor_gadget[id]);
14542       }
14543
14544       // save current editor zoom tilesize
14545       SaveSetup_AutoSetup();
14546
14547       break;
14548
14549     case GADGET_ID_CUSTOM_COPY_FROM:
14550     case GADGET_ID_CUSTOM_COPY_TO:
14551     case GADGET_ID_CUSTOM_EXCHANGE:
14552       last_custom_copy_mode = id;
14553       last_drawing_function = drawing_function;
14554       break;
14555
14556     case GADGET_ID_CUSTOM_COPY:
14557       CopyCustomElement(properties_element, -1, id);
14558       break;
14559
14560     case GADGET_ID_CUSTOM_PASTE:
14561       CopyCustomElement(-1, properties_element, id);
14562       break;
14563
14564     case GADGET_ID_UNDO:
14565       if (button < 0)   // keep button value (even if modifier keys are pressed)
14566         button = -button;
14567       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
14568         button = 3;
14569
14570       if (button == 1 && undo_buffer_steps == 0)
14571       {
14572         Request("Undo buffer empty!", REQ_CONFIRM);
14573
14574         break;
14575       }
14576       else if (button == 2)
14577       {
14578         break;
14579       }
14580       else if (button == 3 && redo_buffer_steps == 0)
14581       {
14582         Request("Redo buffer empty!", REQ_CONFIRM);
14583
14584         break;
14585       }
14586
14587       if (edit_mode != ED_MODE_DRAWING)
14588         ChangeEditModeWindow(ED_MODE_DRAWING);
14589
14590       if (button == 1)
14591       {
14592         // undo
14593
14594         undo_buffer_position =
14595           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
14596
14597         undo_buffer_steps--;
14598         redo_buffer_steps++;
14599       }
14600       else
14601       {
14602         // redo
14603
14604         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14605
14606         undo_buffer_steps++;
14607         redo_buffer_steps--;
14608       }
14609
14610       for (x = 0; x < lev_fieldx; x++)
14611         for (y = 0; y < lev_fieldy; y++)
14612           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
14613
14614       // check if undo operation forces change of border style
14615       CheckLevelBorderElement(FALSE);
14616
14617       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14618
14619       break;
14620
14621     case GADGET_ID_CONF:
14622       if (edit_mode != ED_MODE_LEVELCONFIG)
14623       {
14624         last_edit_mode = edit_mode;
14625
14626         ChangeEditModeWindow(ED_MODE_LEVELCONFIG);
14627       }
14628       else
14629       {
14630         ChangeEditModeWindow(ED_MODE_DRAWING);
14631       }
14632       break;
14633
14634     case GADGET_ID_CLEAR:
14635       if (edit_mode != ED_MODE_DRAWING)
14636         ChangeEditModeWindow(ED_MODE_DRAWING);
14637
14638       for (x = 0; x < MAX_LEV_FIELDX; x++)
14639         for (y = 0; y < MAX_LEV_FIELDY; y++)
14640           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
14641
14642       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
14643
14644       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14645       break;
14646
14647     case GADGET_ID_SAVE:
14648     {
14649       // saving read-only levels into personal level set modifies global vars
14650       // "leveldir_current" and "level_nr"; restore them after saving level
14651       LevelDirTree *leveldir_former = leveldir_current;
14652       int level_nr_former = level_nr;
14653       char *level_filename;
14654       boolean new_level;
14655
14656       if (leveldir_current->readonly &&
14657           !PrepareSavingIntoPersonalLevelSet())
14658         break;
14659
14660       level_filename = getDefaultLevelFilename(level_nr);
14661       new_level = !fileExists(level_filename);
14662
14663       if (new_level ||
14664           Request("Save this level and kill the old?", REQ_ASK))
14665       {
14666         if (leveldir_former->readonly)
14667           ModifyLevelConfigForSavingIntoPersonalLevelSet(leveldir_former->name);
14668
14669         SetAutomaticNumberOfGemsNeeded();
14670
14671         CopyPlayfield(Tile, level.field);
14672         SaveLevel(level_nr);
14673
14674         level.changed = FALSE;
14675
14676         if (new_level)
14677         {
14678           char level_saved_msg[64];
14679
14680           if (leveldir_former->readonly)
14681             sprintf(level_saved_msg,
14682                     "Level saved as level %d into personal level set!",
14683                     level_nr);
14684           else
14685             strcpy(level_saved_msg, "Level saved!");
14686
14687           Request(level_saved_msg, REQ_CONFIRM);
14688         }
14689       }
14690
14691       // "cd" back to copied-from levelset (in case of saved read-only level)
14692       leveldir_current = leveldir_former;
14693       level_nr = level_nr_former;
14694
14695       break;
14696     }
14697
14698     case GADGET_ID_TEST:
14699       if (LevelChanged())
14700         level.game_version = GAME_VERSION_ACTUAL;
14701
14702       CopyPlayfield(level.field, TileBackup);
14703       CopyPlayfield(Tile, level.field);
14704
14705       CopyNativeLevel_RND_to_Native(&level);
14706
14707       UnmapLevelEditorGadgets();
14708       UndrawSpecialEditorDoor();
14709
14710       CloseDoor(DOOR_CLOSE_ALL);
14711
14712       // needed before playing if editor playfield area has different size
14713       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
14714
14715       // redraw_mask = REDRAW_ALL;
14716
14717       level_editor_test_game = TRUE;
14718
14719       StartGameActions(FALSE, setup.autorecord, level.random_seed);
14720
14721       break;
14722
14723     case GADGET_ID_EXIT:
14724       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
14725       break;
14726
14727     default:
14728       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
14729           id <= GADGET_ID_ELEMENTLIST_LAST)
14730       {
14731         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
14732
14733         new_element = editor_elements[element_position + element_shift];
14734
14735         if (IS_EDITOR_CASCADE(new_element))
14736         {
14737           int i;
14738
14739           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
14740           {
14741             int *cascade_element= &(*editor_elements_info[i].headline_list)[0];
14742             boolean *cascade_value=editor_elements_info[i].setup_cascade_value;
14743
14744             if (*cascade_element == new_element)
14745             {
14746               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
14747               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
14748
14749               // update element selection list
14750               ReinitializeElementList();
14751               ModifyEditorElementList();
14752
14753               // update cascading gadget info text
14754               PrintEditorGadgetInfoText(level_editor_gadget[id]);
14755
14756               // save current editor cascading state
14757               SaveSetup_EditorCascade();
14758
14759               break;
14760             }
14761           }
14762
14763           break;
14764         }
14765
14766         if (last_custom_copy_mode != -1)
14767         {
14768           if (CopyCustomElement(properties_element, new_element,
14769                                 last_custom_copy_mode))
14770           {
14771             ClickOnGadget(level_editor_gadget[last_drawing_function],
14772                           MB_LEFTBUTTON);
14773
14774             last_custom_copy_mode = -1;
14775           }
14776
14777           break;
14778         }
14779
14780         // change element of button used to show palette
14781         if (editor.palette.show_on_element_buttons)
14782           button = last_button;
14783
14784         PickDrawingElement(button, new_element);
14785
14786         if (!stick_element_properties_window &&
14787             drawing_function != GADGET_ID_PICK_ELEMENT &&
14788             !(GetKeyModState() & KMOD_Control))
14789         {
14790           properties_element = new_element;
14791           if (edit_mode == ED_MODE_PROPERTIES)
14792             DrawPropertiesWindow();
14793         }
14794
14795         if (drawing_function == GADGET_ID_PICK_ELEMENT)
14796           ClickOnGadget(level_editor_gadget[last_drawing_function],
14797                         MB_LEFTBUTTON);
14798
14799         if (!use_permanent_palette)
14800           ChangeEditModeWindow(last_edit_mode);
14801       }
14802 #ifdef DEBUG
14803       else if (gi->event.type == GD_EVENT_PRESSED)
14804         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
14805       else if (gi->event.type == GD_EVENT_RELEASED)
14806         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
14807       else if (gi->event.type == GD_EVENT_MOVING)
14808         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
14809       else
14810         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
14811 #endif
14812       break;
14813   }
14814 }
14815
14816 void HandleLevelEditorKeyInput(Key key)
14817 {
14818   char letter = getCharFromKey(key);
14819
14820   if (drawing_function == GADGET_ID_TEXT &&
14821       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
14822   {
14823     if (letter)
14824       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
14825     else if (key == KSYM_Delete || key == KSYM_BackSpace)
14826       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
14827     else if (key == KSYM_Return)
14828       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
14829     else if (key == KSYM_Escape)
14830       DrawLevelText(0, 0, 0, TEXT_END);
14831
14832     return;
14833   }
14834
14835   int id = GADGET_ID_NONE;
14836   int new_element_shift = element_shift;
14837   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
14838   int button = MB_LEFTBUTTON;
14839   int i;
14840
14841   switch (key)
14842   {
14843     case KSYM_Left:
14844       id = GADGET_ID_SCROLL_LEFT;
14845       break;
14846     case KSYM_Right:
14847       id = GADGET_ID_SCROLL_RIGHT;
14848       break;
14849     case KSYM_Up:
14850       id = GADGET_ID_SCROLL_UP;
14851       break;
14852     case KSYM_Down:
14853       id = GADGET_ID_SCROLL_DOWN;
14854       break;
14855
14856     case KSYM_Page_Up:
14857     case KSYM_Page_Down:
14858       step *= (key == KSYM_Page_Up ? -1 : +1);
14859       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
14860
14861       if (element_shift < 0)
14862         element_shift = 0;
14863       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14864         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14865
14866       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14867                    GDI_SCROLLBAR_ITEM_POSITION,
14868                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14869
14870       ModifyEditorElementList();
14871
14872       break;
14873
14874     case KSYM_Home:
14875     case KSYM_End:
14876       element_shift = (key == KSYM_Home ? 0 :
14877                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
14878
14879       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14880                    GDI_SCROLLBAR_ITEM_POSITION,
14881                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14882
14883       ModifyEditorElementList();
14884
14885       break;
14886
14887     case KSYM_Insert:
14888     case KSYM_Delete:
14889
14890       // this is needed to prevent interference with running "True X-Mouse"
14891       if (GetKeyModStateFromEvents() & KMOD_Control)
14892         break;
14893
14894       // check for last or next editor cascade block in element list
14895       for (i = 0; i < num_editor_elements; i++)
14896       {
14897         if ((key == KSYM_Insert && i == element_shift) ||
14898             (key == KSYM_Delete && new_element_shift > element_shift))
14899           break;
14900
14901         // jump to next cascade block (or to start of element list)
14902         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
14903           new_element_shift = i;
14904       }
14905
14906       if (i < num_editor_elements)
14907         element_shift = new_element_shift;
14908
14909       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14910         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14911
14912       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14913                    GDI_SCROLLBAR_ITEM_POSITION,
14914                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14915
14916       ModifyEditorElementList();
14917
14918       break;
14919
14920     case KSYM_Escape:
14921       if (edit_mode == ED_MODE_DRAWING)
14922         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
14923       else if (edit_mode == ED_MODE_LEVELCONFIG)
14924         HandleControlButtons(level_editor_gadget[GADGET_ID_CONF]);
14925       else if (edit_mode == ED_MODE_PROPERTIES)
14926         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
14927       else if (edit_mode == ED_MODE_PALETTE)
14928         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
14929       else              // should never happen
14930         ChangeEditModeWindow(ED_MODE_DRAWING);
14931
14932       break;
14933
14934     default:
14935       break;
14936   }
14937
14938   if (id != GADGET_ID_NONE)
14939     ClickOnGadget(level_editor_gadget[id], button);
14940   else if (letter == '1' || letter == '?')
14941     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
14942   else if (letter == '2')
14943     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
14944   else if (letter == '3')
14945     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
14946   else if (letter == '.')
14947     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
14948   else if (letter == 'U')
14949     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14950   else if (letter == '-' || key == KSYM_KP_Subtract)
14951     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
14952   else if (letter == '0' || key == KSYM_KP_0)
14953     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
14954   else if (letter == '+' || key == KSYM_KP_Add ||
14955            letter == '=')       // ("Shift-=" is "+" on US keyboards)
14956     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
14957   else if (key == KSYM_Return ||
14958            key == KSYM_space ||
14959            key == setup.shortcut.toggle_pause)
14960     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
14961   else
14962     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
14963       if (letter && letter == controlbutton_info[i].shortcut)
14964         if (!anyTextGadgetActive())
14965           ClickOnGadget(level_editor_gadget[i], button);
14966
14967   if (draw_with_brush)
14968   {
14969     if (letter == 'x')
14970       FlipBrushX();
14971     else if (letter == 'y')
14972       FlipBrushY();
14973     else if (letter == 'z')
14974       RotateBrush();
14975   }
14976 }
14977
14978 static void HandleLevelEditorIdle_Properties(void)
14979 {
14980   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
14981   int x = editor.settings.element_graphic.x + element_border;
14982   int y = editor.settings.element_graphic.y + element_border;
14983   static DelayCounter action_delay = { 0 };
14984   int i;
14985
14986   action_delay.value = GameFrameDelay;
14987
14988   if (!DelayReached(&action_delay))
14989     return;
14990
14991   for (i = 0; i < ED_NUM_SELECTBOX; i++)
14992   {
14993     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
14994
14995     if (gi->mapped && gi->active && gi->selectbox.open)
14996       return;
14997   }
14998
14999   DrawEditorElementAnimation(SX + x, SY + y);
15000
15001   redraw_mask |= REDRAW_FIELD;
15002
15003   FrameCounter++;       // increase animation frame counter
15004 }
15005
15006 static void HandleLevelEditorIdle_Drawing(void)
15007 {
15008   static boolean last_highlighted = FALSE;
15009   static boolean last_highlighted_similar = FALSE;
15010   boolean highlighted = (GetKeyModState() & KMOD_Alt);
15011   boolean highlighted_similar = (GetKeyModState() & KMOD_Shift);
15012
15013   if (highlighted != last_highlighted ||
15014       (highlighted && highlighted_similar != last_highlighted_similar))
15015   {
15016     DrawAreaElementHighlight(highlighted, highlighted_similar);
15017
15018     redraw_mask |= REDRAW_FIELD;
15019   }
15020
15021   last_highlighted = highlighted;
15022   last_highlighted_similar = highlighted_similar;
15023 }
15024
15025 void HandleLevelEditorIdle(void)
15026 {
15027   if (edit_mode == ED_MODE_PROPERTIES)
15028     HandleLevelEditorIdle_Properties();
15029   else if (edit_mode == ED_MODE_DRAWING)
15030     HandleLevelEditorIdle_Drawing();
15031 }
15032
15033 static void ClearEditorGadgetInfoText(void)
15034 {
15035   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
15036 }
15037
15038 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
15039 {
15040   char infotext[MAX_OUTPUT_LINESIZE + 1];
15041   int max_infotext_len = getMaxInfoTextLength();
15042
15043   if (gi == NULL || strlen(gi->info_text) == 0)
15044     return;
15045
15046   strncpy(infotext, gi->info_text, max_infotext_len);
15047   infotext[max_infotext_len] = '\0';
15048
15049   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
15050   {
15051     int key = controlbutton_info[gi->custom_id].shortcut;
15052
15053     if (key)
15054     {
15055       char shortcut[MAX_OUTPUT_LINESIZE + 1];
15056
15057       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
15058         sprintf(shortcut, " ('.' or '%c')", key);
15059       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
15060         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
15061       else if (gi->custom_id == GADGET_ID_TEST)
15062         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
15063       else if (gi->custom_id == GADGET_ID_UNDO)
15064         sprintf(shortcut, " ('%c/Shift-U')", key);
15065       else if (gi->custom_id == GADGET_ID_ZOOM)
15066         sprintf(shortcut, " ('%c', '0', '-')", key);
15067       else
15068         sprintf(shortcut, " ('%s%c')",
15069                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
15070
15071       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
15072         strcat(infotext, shortcut);
15073     }
15074   }
15075
15076   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
15077 }
15078
15079 void HandleEditorGadgetInfoText(void *ptr)
15080 {
15081   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
15082
15083   if (game_status != GAME_MODE_EDITOR)
15084     return;
15085
15086   ClearEditorGadgetInfoText();
15087
15088   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
15089     return;
15090
15091   // misuse this function to delete brush cursor, if needed
15092   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
15093     DeleteBrushFromCursor();
15094
15095   PrintEditorGadgetInfoText(gi);
15096 }
15097
15098 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
15099 {
15100   int id = gi->custom_id;
15101   int type_id = gi->custom_type_id;
15102   int sx = gi->event.x;
15103   int sy = gi->event.y;
15104   int lx = sx + level_xpos;
15105   int ly = sy + level_ypos;
15106   int min_sx = 0, min_sy = 0;
15107   int max_sx = gi->drawing.area_xsize - 1;
15108   int max_sy = gi->drawing.area_ysize - 1;
15109   int actual_drawing_function = drawing_function;
15110   int max_infotext_len = getMaxInfoTextLength();
15111   char infotext[MAX_OUTPUT_LINESIZE + 1];
15112
15113   infotext[0] = '\0';           // start with empty info text
15114
15115   // pressed Control key: simulate picking element
15116   if (GetKeyModState() & KMOD_Control)
15117     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
15118
15119   ClearEditorGadgetInfoText();
15120
15121   if (gi->event.type == GD_EVENT_INFO_LEAVING)
15122     return;
15123
15124   // make sure to stay inside drawing area boundaries
15125   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
15126   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
15127
15128   if (id == GADGET_ID_DRAWING_LEVEL)
15129   {
15130     if (button_status)
15131     {
15132       int min_lx = 0, min_ly = 0;
15133       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
15134
15135       // get positions inside level field
15136       lx = sx + level_xpos;
15137       ly = sy + level_ypos;
15138
15139       // make sure to stay inside level field boundaries
15140       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
15141       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
15142
15143       // correct drawing area positions accordingly
15144       sx = lx - level_xpos;
15145       sy = ly - level_ypos;
15146     }
15147
15148     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
15149     {
15150       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
15151       {
15152         static int start_lx = 0;
15153         static int start_ly = 0;
15154         char *text;
15155
15156         if (gi->event.type == GD_EVENT_PRESSED)
15157         {
15158           start_lx = lx;
15159           start_ly = ly;
15160         }
15161
15162         switch (actual_drawing_function)
15163         {
15164           case GADGET_ID_SINGLE_ITEMS:
15165             text = "Drawing single items";
15166             break;
15167           case GADGET_ID_CONNECTED_ITEMS:
15168             text = "Drawing connected items";
15169             break;
15170           case GADGET_ID_LINE:
15171             text = "Drawing line";
15172             break;
15173           case GADGET_ID_ARC:
15174             text = "Drawing arc";
15175             break;
15176           case GADGET_ID_TEXT:
15177             text = "Setting text cursor";
15178             break;
15179           case GADGET_ID_RECTANGLE:
15180             text = "Drawing rectangle";
15181             break;
15182           case GADGET_ID_FILLED_BOX:
15183             text = "Drawing filled box";
15184             break;
15185           case GADGET_ID_FLOOD_FILL:
15186             text = "Flood fill";
15187             break;
15188           case GADGET_ID_GRAB_BRUSH:
15189             text = "Grabbing brush";
15190             break;
15191           case GADGET_ID_PICK_ELEMENT:
15192             text = "Picking element";
15193             break;
15194
15195           default:
15196             text = "Drawing position";
15197             break;
15198         }
15199
15200         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
15201           sprintf(infotext, "%s: %d, %d", text, lx, ly);
15202         else
15203           sprintf(infotext, "%s: %d, %d", text,
15204                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
15205       }
15206       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
15207         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
15208       else
15209         sprintf(infotext, "Level position: %d, %d", lx, ly);
15210     }
15211
15212     // misuse this function to draw brush cursor, if needed
15213     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
15214     {
15215       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
15216         CopyBrushToCursor(sx, sy);
15217       else
15218         DeleteBrushFromCursor();
15219     }
15220
15221     if (!draw_with_brush)
15222       UpdateBrushPosition(sx, sy);
15223   }
15224   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
15225   {
15226     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
15227     int element = drawingarea_info[type_id].value[pos];
15228
15229     strncpy(infotext, getElementInfoText(element), max_infotext_len);
15230   }
15231   else
15232   {
15233     if (id == GADGET_ID_CUSTOM_CONTENT)
15234       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
15235     else if (id == GADGET_ID_GROUP_CONTENT)
15236       sprintf(infotext, "group element position: %d", sx + 1);
15237     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
15238              id <= GADGET_ID_YAMYAM_CONTENT_7)
15239       sprintf(infotext, "content area %d position: %d, %d",
15240               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
15241     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
15242              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
15243       sprintf(infotext, "content area %d position: %d, %d",
15244               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
15245     else if (id == GADGET_ID_ANDROID_CONTENT)
15246       sprintf(infotext, "android element position: %d", sx + 1);
15247     else if (drawingarea_info[type_id].infotext != NULL)
15248       strcpy(infotext, drawingarea_info[type_id].infotext);
15249   }
15250
15251   infotext[max_infotext_len] = '\0';
15252
15253   if (strlen(infotext) > 0)
15254     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
15255 }
15256
15257 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
15258                             boolean quick_quit)
15259 {
15260   if (!ask_if_level_has_changed ||
15261       !LevelChanged() ||
15262       Request("Level has changed! Exit without saving?",
15263               REQ_ASK | REQ_STAY_OPEN))
15264   {
15265     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
15266     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
15267
15268     // draw normal door
15269     UndrawSpecialEditorDoor();
15270
15271     // use door animation if door 1 viewport is unchanged and contains toolbox
15272     if (useEditorDoorAnimation())
15273       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
15274
15275     // close editor doors if viewport definition is the same as in main menu
15276     if (vp_door_1->x      == DX     &&
15277         vp_door_1->y      == DY     &&
15278         vp_door_1->width  == DXSIZE &&
15279         vp_door_1->height == DYSIZE &&
15280         vp_door_2->x      == VX     &&
15281         vp_door_2->y      == VY     &&
15282         vp_door_2->width  == VXSIZE &&
15283         vp_door_2->height == VYSIZE)
15284       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
15285     else
15286       SetDoorState(DOOR_CLOSE_ALL);
15287
15288     BackToFront();
15289
15290     if (quick_quit)
15291       FadeSkipNextFadeIn();
15292
15293     SetGameStatus(GAME_MODE_MAIN);
15294
15295     DrawMainMenu();
15296   }
15297   else
15298   {
15299     if (!global.use_envelope_request)
15300     {
15301       CloseDoor(DOOR_CLOSE_1);
15302       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
15303     }
15304   }
15305 }